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GNU GENERAL PUBLIC LICENSE
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Version 3, 29 June 2007
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Copyright (C) 2007 Free Software Foundation, Inc. <https://fsf.org/>
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Everyone is permitted to copy and distribute verbatim copies
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of this license document, but changing it is not allowed.
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Preamble
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The GNU General Public License is a free, copyleft license for
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software and other kinds of works.
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The licenses for most software and other practical works are designed
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to take away your freedom to share and change the works. By contrast,
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the GNU General Public License is intended to guarantee your freedom to
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share and change all versions of a program--to make sure it remains free
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software for all its users. We, the Free Software Foundation, use the
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GNU General Public License for most of our software; it applies also to
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any other work released this way by its authors. You can apply it to
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your programs, too.
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When we speak of free software, we are referring to freedom, not
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have the freedom to distribute copies of free software (and charge for
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want it, that you can change the software or use pieces of it in new
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free programs, and that you know you can do these things.
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To protect your rights, we need to prevent others from denying you
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certain responsibilities if you distribute copies of the software, or if
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you modify it: responsibilities to respect the freedom of others.
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For example, if you distribute copies of such a program, whether
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Developers that use the GNU GPL protect your rights with two steps:
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giving you legal permission to copy, distribute and/or modify it.
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For the developers' and authors' protection, the GPL clearly explains
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stand ready to extend this provision to those domains in future versions
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Finally, every program is threatened constantly by software patents.
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States should not allow patents to restrict development and use of
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The precise terms and conditions for copying, distribution and
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TERMS AND CONDITIONS
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0. Definitions.
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|
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"This License" refers to version 3 of the GNU General Public License.
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"Copyright" also means copyright-like laws that apply to other kinds of
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"The Program" refers to any copyrightable work licensed under this
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To "modify" a work means to copy from or adapt all or part of the work
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earlier work or a work "based on" the earlier work.
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A "covered work" means either the unmodified Program or a work based
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on the Program.
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To "propagate" a work means to do anything with it that, without
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permission, would make you directly or secondarily liable for
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infringement under applicable copyright law, except executing it on a
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computer or modifying a private copy. Propagation includes copying,
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distribution (with or without modification), making available to the
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public, and in some countries other activities as well.
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To "convey" a work means any kind of propagation that enables other
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An interactive user interface displays "Appropriate Legal Notices"
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the interface presents a list of user commands or options, such as a
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menu, a prominent item in the list meets this criterion.
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1. Source Code.
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The "source code" for a work means the preferred form of the work
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for making modifications to it. "Object code" means any non-source
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A "Standard Interface" means an interface that either is an official
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standard defined by a recognized standards body, or, in the case of
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interfaces specified for a particular programming language, one that
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is widely used among developers working in that language.
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The "System Libraries" of an executable work include anything, other
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than the work as a whole, that (a) is included in the normal form of
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Component, and (b) serves only to enable use of the work with that
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Major Component, or to implement a Standard Interface for which an
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implementation is available to the public in source code form. A
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"Major Component", in this context, means a major essential component
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(kernel, window system, and so on) of the specific operating system
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(if any) on which the executable work runs, or a compiler used to
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produce the work, or an object code interpreter used to run it.
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The "Corresponding Source" for a work in object code form means all
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the source code needed to generate, install, and (for an executable
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work) run the object code and to modify the work, including scripts to
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control those activities. However, it does not include the work's
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System Libraries, or general-purpose tools or generally available free
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programs which are used unmodified in performing those activities but
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which are not part of the work. For example, Corresponding Source
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includes interface definition files associated with source files for
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the work, and the source code for shared libraries and dynamically
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linked subprograms that the work is specifically designed to require,
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such as by intimate data communication or control flow between those
|
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subprograms and other parts of the work.
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|
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The Corresponding Source need not include anything that users
|
||||||
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can regenerate automatically from other parts of the Corresponding
|
||||||
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Source.
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|
||||||
|
The Corresponding Source for a work in source code form is that
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same work.
|
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|
||||||
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2. Basic Permissions.
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|
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All rights granted under this License are granted for the term of
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copyright on the Program, and are irrevocable provided the stated
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conditions are met. This License explicitly affirms your unlimited
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permission to run the unmodified Program. The output from running a
|
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covered work is covered by this License only if the output, given its
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content, constitutes a covered work. This License acknowledges your
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rights of fair use or other equivalent, as provided by copyright law.
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You may make, run and propagate covered works that you do not
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convey, without conditions so long as your license otherwise remains
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in force. You may convey covered works to others for the sole purpose
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of having them make modifications exclusively for you, or provide you
|
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with facilities for running those works, provided that you comply with
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the terms of this License in conveying all material for which you do
|
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not control copyright. Those thus making or running the covered works
|
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for you must do so exclusively on your behalf, under your direction
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and control, on terms that prohibit them from making any copies of
|
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your copyrighted material outside their relationship with you.
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|
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|
Conveying under any other circumstances is permitted solely under
|
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the conditions stated below. Sublicensing is not allowed; section 10
|
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makes it unnecessary.
|
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|
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|
3. Protecting Users' Legal Rights From Anti-Circumvention Law.
|
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No covered work shall be deemed part of an effective technological
|
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measure under any applicable law fulfilling obligations under article
|
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11 of the WIPO copyright treaty adopted on 20 December 1996, or
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similar laws prohibiting or restricting circumvention of such
|
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measures.
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|
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When you convey a covered work, you waive any legal power to forbid
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circumvention of technological measures to the extent such circumvention
|
||||||
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is effected by exercising rights under this License with respect to
|
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the covered work, and you disclaim any intention to limit operation or
|
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modification of the work as a means of enforcing, against the work's
|
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users, your or third parties' legal rights to forbid circumvention of
|
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technological measures.
|
||||||
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|
||||||
|
4. Conveying Verbatim Copies.
|
||||||
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|
||||||
|
You may convey verbatim copies of the Program's source code as you
|
||||||
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receive it, in any medium, provided that you conspicuously and
|
||||||
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appropriately publish on each copy an appropriate copyright notice;
|
||||||
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keep intact all notices stating that this License and any
|
||||||
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non-permissive terms added in accord with section 7 apply to the code;
|
||||||
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keep intact all notices of the absence of any warranty; and give all
|
||||||
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recipients a copy of this License along with the Program.
|
||||||
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|
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You may charge any price or no price for each copy that you convey,
|
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and you may offer support or warranty protection for a fee.
|
||||||
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|
||||||
|
5. Conveying Modified Source Versions.
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||||||
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|
||||||
|
You may convey a work based on the Program, or the modifications to
|
||||||
|
produce it from the Program, in the form of source code under the
|
||||||
|
terms of section 4, provided that you also meet all of these conditions:
|
||||||
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|
||||||
|
a) The work must carry prominent notices stating that you modified
|
||||||
|
it, and giving a relevant date.
|
||||||
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|
||||||
|
b) The work must carry prominent notices stating that it is
|
||||||
|
released under this License and any conditions added under section
|
||||||
|
7. This requirement modifies the requirement in section 4 to
|
||||||
|
"keep intact all notices".
|
||||||
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|
||||||
|
c) You must license the entire work, as a whole, under this
|
||||||
|
License to anyone who comes into possession of a copy. This
|
||||||
|
License will therefore apply, along with any applicable section 7
|
||||||
|
additional terms, to the whole of the work, and all its parts,
|
||||||
|
regardless of how they are packaged. This License gives no
|
||||||
|
permission to license the work in any other way, but it does not
|
||||||
|
invalidate such permission if you have separately received it.
|
||||||
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|
||||||
|
d) If the work has interactive user interfaces, each must display
|
||||||
|
Appropriate Legal Notices; however, if the Program has interactive
|
||||||
|
interfaces that do not display Appropriate Legal Notices, your
|
||||||
|
work need not make them do so.
|
||||||
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|
||||||
|
A compilation of a covered work with other separate and independent
|
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works, which are not by their nature extensions of the covered work,
|
||||||
|
and which are not combined with it such as to form a larger program,
|
||||||
|
in or on a volume of a storage or distribution medium, is called an
|
||||||
|
"aggregate" if the compilation and its resulting copyright are not
|
||||||
|
used to limit the access or legal rights of the compilation's users
|
||||||
|
beyond what the individual works permit. Inclusion of a covered work
|
||||||
|
in an aggregate does not cause this License to apply to the other
|
||||||
|
parts of the aggregate.
|
||||||
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|
||||||
|
6. Conveying Non-Source Forms.
|
||||||
|
|
||||||
|
You may convey a covered work in object code form under the terms
|
||||||
|
of sections 4 and 5, provided that you also convey the
|
||||||
|
machine-readable Corresponding Source under the terms of this License,
|
||||||
|
in one of these ways:
|
||||||
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|
||||||
|
a) Convey the object code in, or embodied in, a physical product
|
||||||
|
(including a physical distribution medium), accompanied by the
|
||||||
|
Corresponding Source fixed on a durable physical medium
|
||||||
|
customarily used for software interchange.
|
||||||
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|
||||||
|
b) Convey the object code in, or embodied in, a physical product
|
||||||
|
(including a physical distribution medium), accompanied by a
|
||||||
|
written offer, valid for at least three years and valid for as
|
||||||
|
long as you offer spare parts or customer support for that product
|
||||||
|
model, to give anyone who possesses the object code either (1) a
|
||||||
|
copy of the Corresponding Source for all the software in the
|
||||||
|
product that is covered by this License, on a durable physical
|
||||||
|
medium customarily used for software interchange, for a price no
|
||||||
|
more than your reasonable cost of physically performing this
|
||||||
|
conveying of source, or (2) access to copy the
|
||||||
|
Corresponding Source from a network server at no charge.
|
||||||
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|
||||||
|
c) Convey individual copies of the object code with a copy of the
|
||||||
|
written offer to provide the Corresponding Source. This
|
||||||
|
alternative is allowed only occasionally and noncommercially, and
|
||||||
|
only if you received the object code with such an offer, in accord
|
||||||
|
with subsection 6b.
|
||||||
|
|
||||||
|
d) Convey the object code by offering access from a designated
|
||||||
|
place (gratis or for a charge), and offer equivalent access to the
|
||||||
|
Corresponding Source in the same way through the same place at no
|
||||||
|
further charge. You need not require recipients to copy the
|
||||||
|
Corresponding Source along with the object code. If the place to
|
||||||
|
copy the object code is a network server, the Corresponding Source
|
||||||
|
may be on a different server (operated by you or a third party)
|
||||||
|
that supports equivalent copying facilities, provided you maintain
|
||||||
|
clear directions next to the object code saying where to find the
|
||||||
|
Corresponding Source. Regardless of what server hosts the
|
||||||
|
Corresponding Source, you remain obligated to ensure that it is
|
||||||
|
available for as long as needed to satisfy these requirements.
|
||||||
|
|
||||||
|
e) Convey the object code using peer-to-peer transmission, provided
|
||||||
|
you inform other peers where the object code and Corresponding
|
||||||
|
Source of the work are being offered to the general public at no
|
||||||
|
charge under subsection 6d.
|
||||||
|
|
||||||
|
A separable portion of the object code, whose source code is excluded
|
||||||
|
from the Corresponding Source as a System Library, need not be
|
||||||
|
included in conveying the object code work.
|
||||||
|
|
||||||
|
A "User Product" is either (1) a "consumer product", which means any
|
||||||
|
tangible personal property which is normally used for personal, family,
|
||||||
|
or household purposes, or (2) anything designed or sold for incorporation
|
||||||
|
into a dwelling. In determining whether a product is a consumer product,
|
||||||
|
doubtful cases shall be resolved in favor of coverage. For a particular
|
||||||
|
product received by a particular user, "normally used" refers to a
|
||||||
|
typical or common use of that class of product, regardless of the status
|
||||||
|
of the particular user or of the way in which the particular user
|
||||||
|
actually uses, or expects or is expected to use, the product. A product
|
||||||
|
is a consumer product regardless of whether the product has substantial
|
||||||
|
commercial, industrial or non-consumer uses, unless such uses represent
|
||||||
|
the only significant mode of use of the product.
|
||||||
|
|
||||||
|
"Installation Information" for a User Product means any methods,
|
||||||
|
procedures, authorization keys, or other information required to install
|
||||||
|
and execute modified versions of a covered work in that User Product from
|
||||||
|
a modified version of its Corresponding Source. The information must
|
||||||
|
suffice to ensure that the continued functioning of the modified object
|
||||||
|
code is in no case prevented or interfered with solely because
|
||||||
|
modification has been made.
|
||||||
|
|
||||||
|
If you convey an object code work under this section in, or with, or
|
||||||
|
specifically for use in, a User Product, and the conveying occurs as
|
||||||
|
part of a transaction in which the right of possession and use of the
|
||||||
|
User Product is transferred to the recipient in perpetuity or for a
|
||||||
|
fixed term (regardless of how the transaction is characterized), the
|
||||||
|
Corresponding Source conveyed under this section must be accompanied
|
||||||
|
by the Installation Information. But this requirement does not apply
|
||||||
|
if neither you nor any third party retains the ability to install
|
||||||
|
modified object code on the User Product (for example, the work has
|
||||||
|
been installed in ROM).
|
||||||
|
|
||||||
|
The requirement to provide Installation Information does not include a
|
||||||
|
requirement to continue to provide support service, warranty, or updates
|
||||||
|
for a work that has been modified or installed by the recipient, or for
|
||||||
|
the User Product in which it has been modified or installed. Access to a
|
||||||
|
network may be denied when the modification itself materially and
|
||||||
|
adversely affects the operation of the network or violates the rules and
|
||||||
|
protocols for communication across the network.
|
||||||
|
|
||||||
|
Corresponding Source conveyed, and Installation Information provided,
|
||||||
|
in accord with this section must be in a format that is publicly
|
||||||
|
documented (and with an implementation available to the public in
|
||||||
|
source code form), and must require no special password or key for
|
||||||
|
unpacking, reading or copying.
|
||||||
|
|
||||||
|
7. Additional Terms.
|
||||||
|
|
||||||
|
"Additional permissions" are terms that supplement the terms of this
|
||||||
|
License by making exceptions from one or more of its conditions.
|
||||||
|
Additional permissions that are applicable to the entire Program shall
|
||||||
|
be treated as though they were included in this License, to the extent
|
||||||
|
that they are valid under applicable law. If additional permissions
|
||||||
|
apply only to part of the Program, that part may be used separately
|
||||||
|
under those permissions, but the entire Program remains governed by
|
||||||
|
this License without regard to the additional permissions.
|
||||||
|
|
||||||
|
When you convey a copy of a covered work, you may at your option
|
||||||
|
remove any additional permissions from that copy, or from any part of
|
||||||
|
it. (Additional permissions may be written to require their own
|
||||||
|
removal in certain cases when you modify the work.) You may place
|
||||||
|
additional permissions on material, added by you to a covered work,
|
||||||
|
for which you have or can give appropriate copyright permission.
|
||||||
|
|
||||||
|
Notwithstanding any other provision of this License, for material you
|
||||||
|
add to a covered work, you may (if authorized by the copyright holders of
|
||||||
|
that material) supplement the terms of this License with terms:
|
||||||
|
|
||||||
|
a) Disclaiming warranty or limiting liability differently from the
|
||||||
|
terms of sections 15 and 16 of this License; or
|
||||||
|
|
||||||
|
b) Requiring preservation of specified reasonable legal notices or
|
||||||
|
author attributions in that material or in the Appropriate Legal
|
||||||
|
Notices displayed by works containing it; or
|
||||||
|
|
||||||
|
c) Prohibiting misrepresentation of the origin of that material, or
|
||||||
|
requiring that modified versions of such material be marked in
|
||||||
|
reasonable ways as different from the original version; or
|
||||||
|
|
||||||
|
d) Limiting the use for publicity purposes of names of licensors or
|
||||||
|
authors of the material; or
|
||||||
|
|
||||||
|
e) Declining to grant rights under trademark law for use of some
|
||||||
|
trade names, trademarks, or service marks; or
|
||||||
|
|
||||||
|
f) Requiring indemnification of licensors and authors of that
|
||||||
|
material by anyone who conveys the material (or modified versions of
|
||||||
|
it) with contractual assumptions of liability to the recipient, for
|
||||||
|
any liability that these contractual assumptions directly impose on
|
||||||
|
those licensors and authors.
|
||||||
|
|
||||||
|
All other non-permissive additional terms are considered "further
|
||||||
|
restrictions" within the meaning of section 10. If the Program as you
|
||||||
|
received it, or any part of it, contains a notice stating that it is
|
||||||
|
governed by this License along with a term that is a further
|
||||||
|
restriction, you may remove that term. If a license document contains
|
||||||
|
a further restriction but permits relicensing or conveying under this
|
||||||
|
License, you may add to a covered work material governed by the terms
|
||||||
|
of that license document, provided that the further restriction does
|
||||||
|
not survive such relicensing or conveying.
|
||||||
|
|
||||||
|
If you add terms to a covered work in accord with this section, you
|
||||||
|
must place, in the relevant source files, a statement of the
|
||||||
|
additional terms that apply to those files, or a notice indicating
|
||||||
|
where to find the applicable terms.
|
||||||
|
|
||||||
|
Additional terms, permissive or non-permissive, may be stated in the
|
||||||
|
form of a separately written license, or stated as exceptions;
|
||||||
|
the above requirements apply either way.
|
||||||
|
|
||||||
|
8. Termination.
|
||||||
|
|
||||||
|
You may not propagate or modify a covered work except as expressly
|
||||||
|
provided under this License. Any attempt otherwise to propagate or
|
||||||
|
modify it is void, and will automatically terminate your rights under
|
||||||
|
this License (including any patent licenses granted under the third
|
||||||
|
paragraph of section 11).
|
||||||
|
|
||||||
|
However, if you cease all violation of this License, then your
|
||||||
|
license from a particular copyright holder is reinstated (a)
|
||||||
|
provisionally, unless and until the copyright holder explicitly and
|
||||||
|
finally terminates your license, and (b) permanently, if the copyright
|
||||||
|
holder fails to notify you of the violation by some reasonable means
|
||||||
|
prior to 60 days after the cessation.
|
||||||
|
|
||||||
|
Moreover, your license from a particular copyright holder is
|
||||||
|
reinstated permanently if the copyright holder notifies you of the
|
||||||
|
violation by some reasonable means, this is the first time you have
|
||||||
|
received notice of violation of this License (for any work) from that
|
||||||
|
copyright holder, and you cure the violation prior to 30 days after
|
||||||
|
your receipt of the notice.
|
||||||
|
|
||||||
|
Termination of your rights under this section does not terminate the
|
||||||
|
licenses of parties who have received copies or rights from you under
|
||||||
|
this License. If your rights have been terminated and not permanently
|
||||||
|
reinstated, you do not qualify to receive new licenses for the same
|
||||||
|
material under section 10.
|
||||||
|
|
||||||
|
9. Acceptance Not Required for Having Copies.
|
||||||
|
|
||||||
|
You are not required to accept this License in order to receive or
|
||||||
|
run a copy of the Program. Ancillary propagation of a covered work
|
||||||
|
occurring solely as a consequence of using peer-to-peer transmission
|
||||||
|
to receive a copy likewise does not require acceptance. However,
|
||||||
|
nothing other than this License grants you permission to propagate or
|
||||||
|
modify any covered work. These actions infringe copyright if you do
|
||||||
|
not accept this License. Therefore, by modifying or propagating a
|
||||||
|
covered work, you indicate your acceptance of this License to do so.
|
||||||
|
|
||||||
|
10. Automatic Licensing of Downstream Recipients.
|
||||||
|
|
||||||
|
Each time you convey a covered work, the recipient automatically
|
||||||
|
receives a license from the original licensors, to run, modify and
|
||||||
|
propagate that work, subject to this License. You are not responsible
|
||||||
|
for enforcing compliance by third parties with this License.
|
||||||
|
|
||||||
|
An "entity transaction" is a transaction transferring control of an
|
||||||
|
organization, or substantially all assets of one, or subdividing an
|
||||||
|
organization, or merging organizations. If propagation of a covered
|
||||||
|
work results from an entity transaction, each party to that
|
||||||
|
transaction who receives a copy of the work also receives whatever
|
||||||
|
licenses to the work the party's predecessor in interest had or could
|
||||||
|
give under the previous paragraph, plus a right to possession of the
|
||||||
|
Corresponding Source of the work from the predecessor in interest, if
|
||||||
|
the predecessor has it or can get it with reasonable efforts.
|
||||||
|
|
||||||
|
You may not impose any further restrictions on the exercise of the
|
||||||
|
rights granted or affirmed under this License. For example, you may
|
||||||
|
not impose a license fee, royalty, or other charge for exercise of
|
||||||
|
rights granted under this License, and you may not initiate litigation
|
||||||
|
(including a cross-claim or counterclaim in a lawsuit) alleging that
|
||||||
|
any patent claim is infringed by making, using, selling, offering for
|
||||||
|
sale, or importing the Program or any portion of it.
|
||||||
|
|
||||||
|
11. Patents.
|
||||||
|
|
||||||
|
A "contributor" is a copyright holder who authorizes use under this
|
||||||
|
License of the Program or a work on which the Program is based. The
|
||||||
|
work thus licensed is called the contributor's "contributor version".
|
||||||
|
|
||||||
|
A contributor's "essential patent claims" are all patent claims
|
||||||
|
owned or controlled by the contributor, whether already acquired or
|
||||||
|
hereafter acquired, that would be infringed by some manner, permitted
|
||||||
|
by this License, of making, using, or selling its contributor version,
|
||||||
|
but do not include claims that would be infringed only as a
|
||||||
|
consequence of further modification of the contributor version. For
|
||||||
|
purposes of this definition, "control" includes the right to grant
|
||||||
|
patent sublicenses in a manner consistent with the requirements of
|
||||||
|
this License.
|
||||||
|
|
||||||
|
Each contributor grants you a non-exclusive, worldwide, royalty-free
|
||||||
|
patent license under the contributor's essential patent claims, to
|
||||||
|
make, use, sell, offer for sale, import and otherwise run, modify and
|
||||||
|
propagate the contents of its contributor version.
|
||||||
|
|
||||||
|
In the following three paragraphs, a "patent license" is any express
|
||||||
|
agreement or commitment, however denominated, not to enforce a patent
|
||||||
|
(such as an express permission to practice a patent or covenant not to
|
||||||
|
sue for patent infringement). To "grant" such a patent license to a
|
||||||
|
party means to make such an agreement or commitment not to enforce a
|
||||||
|
patent against the party.
|
||||||
|
|
||||||
|
If you convey a covered work, knowingly relying on a patent license,
|
||||||
|
and the Corresponding Source of the work is not available for anyone
|
||||||
|
to copy, free of charge and under the terms of this License, through a
|
||||||
|
publicly available network server or other readily accessible means,
|
||||||
|
then you must either (1) cause the Corresponding Source to be so
|
||||||
|
available, or (2) arrange to deprive yourself of the benefit of the
|
||||||
|
patent license for this particular work, or (3) arrange, in a manner
|
||||||
|
consistent with the requirements of this License, to extend the patent
|
||||||
|
license to downstream recipients. "Knowingly relying" means you have
|
||||||
|
actual knowledge that, but for the patent license, your conveying the
|
||||||
|
covered work in a country, or your recipient's use of the covered work
|
||||||
|
in a country, would infringe one or more identifiable patents in that
|
||||||
|
country that you have reason to believe are valid.
|
||||||
|
|
||||||
|
If, pursuant to or in connection with a single transaction or
|
||||||
|
arrangement, you convey, or propagate by procuring conveyance of, a
|
||||||
|
covered work, and grant a patent license to some of the parties
|
||||||
|
receiving the covered work authorizing them to use, propagate, modify
|
||||||
|
or convey a specific copy of the covered work, then the patent license
|
||||||
|
you grant is automatically extended to all recipients of the covered
|
||||||
|
work and works based on it.
|
||||||
|
|
||||||
|
A patent license is "discriminatory" if it does not include within
|
||||||
|
the scope of its coverage, prohibits the exercise of, or is
|
||||||
|
conditioned on the non-exercise of one or more of the rights that are
|
||||||
|
specifically granted under this License. You may not convey a covered
|
||||||
|
work if you are a party to an arrangement with a third party that is
|
||||||
|
in the business of distributing software, under which you make payment
|
||||||
|
to the third party based on the extent of your activity of conveying
|
||||||
|
the work, and under which the third party grants, to any of the
|
||||||
|
parties who would receive the covered work from you, a discriminatory
|
||||||
|
patent license (a) in connection with copies of the covered work
|
||||||
|
conveyed by you (or copies made from those copies), or (b) primarily
|
||||||
|
for and in connection with specific products or compilations that
|
||||||
|
contain the covered work, unless you entered into that arrangement,
|
||||||
|
or that patent license was granted, prior to 28 March 2007.
|
||||||
|
|
||||||
|
Nothing in this License shall be construed as excluding or limiting
|
||||||
|
any implied license or other defenses to infringement that may
|
||||||
|
otherwise be available to you under applicable patent law.
|
||||||
|
|
||||||
|
12. No Surrender of Others' Freedom.
|
||||||
|
|
||||||
|
If conditions are imposed on you (whether by court order, agreement or
|
||||||
|
otherwise) that contradict the conditions of this License, they do not
|
||||||
|
excuse you from the conditions of this License. If you cannot convey a
|
||||||
|
covered work so as to satisfy simultaneously your obligations under this
|
||||||
|
License and any other pertinent obligations, then as a consequence you may
|
||||||
|
not convey it at all. For example, if you agree to terms that obligate you
|
||||||
|
to collect a royalty for further conveying from those to whom you convey
|
||||||
|
the Program, the only way you could satisfy both those terms and this
|
||||||
|
License would be to refrain entirely from conveying the Program.
|
||||||
|
|
||||||
|
13. Use with the GNU Affero General Public License.
|
||||||
|
|
||||||
|
Notwithstanding any other provision of this License, you have
|
||||||
|
permission to link or combine any covered work with a work licensed
|
||||||
|
under version 3 of the GNU Affero General Public License into a single
|
||||||
|
combined work, and to convey the resulting work. The terms of this
|
||||||
|
License will continue to apply to the part which is the covered work,
|
||||||
|
but the special requirements of the GNU Affero General Public License,
|
||||||
|
section 13, concerning interaction through a network will apply to the
|
||||||
|
combination as such.
|
||||||
|
|
||||||
|
14. Revised Versions of this License.
|
||||||
|
|
||||||
|
The Free Software Foundation may publish revised and/or new versions of
|
||||||
|
the GNU General Public License from time to time. Such new versions will
|
||||||
|
be similar in spirit to the present version, but may differ in detail to
|
||||||
|
address new problems or concerns.
|
||||||
|
|
||||||
|
Each version is given a distinguishing version number. If the
|
||||||
|
Program specifies that a certain numbered version of the GNU General
|
||||||
|
Public License "or any later version" applies to it, you have the
|
||||||
|
option of following the terms and conditions either of that numbered
|
||||||
|
version or of any later version published by the Free Software
|
||||||
|
Foundation. If the Program does not specify a version number of the
|
||||||
|
GNU General Public License, you may choose any version ever published
|
||||||
|
by the Free Software Foundation.
|
||||||
|
|
||||||
|
If the Program specifies that a proxy can decide which future
|
||||||
|
versions of the GNU General Public License can be used, that proxy's
|
||||||
|
public statement of acceptance of a version permanently authorizes you
|
||||||
|
to choose that version for the Program.
|
||||||
|
|
||||||
|
Later license versions may give you additional or different
|
||||||
|
permissions. However, no additional obligations are imposed on any
|
||||||
|
author or copyright holder as a result of your choosing to follow a
|
||||||
|
later version.
|
||||||
|
|
||||||
|
15. Disclaimer of Warranty.
|
||||||
|
|
||||||
|
THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
|
||||||
|
APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
|
||||||
|
HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY
|
||||||
|
OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
|
||||||
|
THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
|
||||||
|
PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM
|
||||||
|
IS WITH YOU. SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
|
||||||
|
ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
|
||||||
|
|
||||||
|
16. Limitation of Liability.
|
||||||
|
|
||||||
|
IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
|
||||||
|
WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
|
||||||
|
THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
|
||||||
|
GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
|
||||||
|
USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
|
||||||
|
DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
|
||||||
|
PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
|
||||||
|
EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
|
||||||
|
SUCH DAMAGES.
|
||||||
|
|
||||||
|
17. Interpretation of Sections 15 and 16.
|
||||||
|
|
||||||
|
If the disclaimer of warranty and limitation of liability provided
|
||||||
|
above cannot be given local legal effect according to their terms,
|
||||||
|
reviewing courts shall apply local law that most closely approximates
|
||||||
|
an absolute waiver of all civil liability in connection with the
|
||||||
|
Program, unless a warranty or assumption of liability accompanies a
|
||||||
|
copy of the Program in return for a fee.
|
||||||
|
|
||||||
|
END OF TERMS AND CONDITIONS
|
||||||
|
|
||||||
|
How to Apply These Terms to Your New Programs
|
||||||
|
|
||||||
|
If you develop a new program, and you want it to be of the greatest
|
||||||
|
possible use to the public, the best way to achieve this is to make it
|
||||||
|
free software which everyone can redistribute and change under these terms.
|
||||||
|
|
||||||
|
To do so, attach the following notices to the program. It is safest
|
||||||
|
to attach them to the start of each source file to most effectively
|
||||||
|
state the exclusion of warranty; and each file should have at least
|
||||||
|
the "copyright" line and a pointer to where the full notice is found.
|
||||||
|
|
||||||
|
<one line to give the program's name and a brief idea of what it does.>
|
||||||
|
Copyright (C) <year> <name of author>
|
||||||
|
|
||||||
|
This program is free software: you can redistribute it and/or modify
|
||||||
|
it under the terms of the GNU General Public License as published by
|
||||||
|
the Free Software Foundation, either version 3 of the License, or
|
||||||
|
(at your option) any later version.
|
||||||
|
|
||||||
|
This program is distributed in the hope that it will be useful,
|
||||||
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||||
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||||
|
GNU General Public License for more details.
|
||||||
|
|
||||||
|
You should have received a copy of the GNU General Public License
|
||||||
|
along with this program. If not, see <https://www.gnu.org/licenses/>.
|
||||||
|
|
||||||
|
Also add information on how to contact you by electronic and paper mail.
|
||||||
|
|
||||||
|
If the program does terminal interaction, make it output a short
|
||||||
|
notice like this when it starts in an interactive mode:
|
||||||
|
|
||||||
|
<program> Copyright (C) <year> <name of author>
|
||||||
|
This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
|
||||||
|
This is free software, and you are welcome to redistribute it
|
||||||
|
under certain conditions; type `show c' for details.
|
||||||
|
|
||||||
|
The hypothetical commands `show w' and `show c' should show the appropriate
|
||||||
|
parts of the General Public License. Of course, your program's commands
|
||||||
|
might be different; for a GUI interface, you would use an "about box".
|
||||||
|
|
||||||
|
You should also get your employer (if you work as a programmer) or school,
|
||||||
|
if any, to sign a "copyright disclaimer" for the program, if necessary.
|
||||||
|
For more information on this, and how to apply and follow the GNU GPL, see
|
||||||
|
<https://www.gnu.org/licenses/>.
|
||||||
|
|
||||||
|
The GNU General Public License does not permit incorporating your program
|
||||||
|
into proprietary programs. If your program is a subroutine library, you
|
||||||
|
may consider it more useful to permit linking proprietary applications with
|
||||||
|
the library. If this is what you want to do, use the GNU Lesser General
|
||||||
|
Public License instead of this License. But first, please read
|
||||||
|
<https://www.gnu.org/licenses/why-not-lgpl.html>.
|
|
@ -1,6 +1,5 @@
|
||||||
# tomo
|
# tomo
|
||||||
|
|
||||||
WIP rewrite of tomo.
|
[![Go Reference](https://pkg.go.dev/badge/git.tebibyte.media/tomo/tomo.svg)](https://pkg.go.dev/git.tebibyte.media/tomo/tomo)
|
||||||
|
|
||||||
This module will serve as a wafer-thin collection of interfaces and glue code so
|
Tomo is a lightweight GUI toolkit written in pure Go.
|
||||||
that plugins will be an actual viable concept.
|
|
||||||
|
|
26
backend.go
26
backend.go
|
@ -3,19 +3,39 @@ package tomo
|
||||||
import "sort"
|
import "sort"
|
||||||
import "image"
|
import "image"
|
||||||
import "errors"
|
import "errors"
|
||||||
|
import "git.tebibyte.media/tomo/tomo/canvas"
|
||||||
|
|
||||||
|
// Backend is any Tomo implementation. Backends handle window creation, layout,
|
||||||
|
// rendering, and events so that there can be as many platform-specific
|
||||||
|
// optimizations as possible.
|
||||||
type Backend interface {
|
type Backend interface {
|
||||||
NewWindow (image.Rectangle) MainWindow
|
// These methods create new objects. The backend must reject any object
|
||||||
|
// that was not made by it.
|
||||||
NewBox () Box
|
NewBox () Box
|
||||||
NewTextBox () TextBox
|
NewTextBox () TextBox
|
||||||
NewCanvasBox () CanvasBox
|
NewCanvasBox () CanvasBox
|
||||||
NewContainerBox () ContainerBox
|
NewContainerBox () ContainerBox
|
||||||
|
|
||||||
|
// NewWindow creates a normal MainWindow and returns it.
|
||||||
|
NewWindow (image.Rectangle) (MainWindow, error)
|
||||||
|
|
||||||
|
// NewPlainWindow creates an undecorated window that does not appear in
|
||||||
|
// window lists and returns it. This is intended for making things like
|
||||||
|
// panels, docks, etc.
|
||||||
|
NewPlainWindow (image.Rectangle) (MainWindow, error)
|
||||||
|
|
||||||
|
// NewTexture creates a new texture from an image. The backend must
|
||||||
|
// reject any texture that was not made by it.
|
||||||
|
NewTexture (image.Image) canvas.TextureCloser
|
||||||
|
|
||||||
|
// Run runs the event loop until Stop() is called, or the backend
|
||||||
|
// experiences a fatal error.
|
||||||
|
Run () error
|
||||||
|
|
||||||
// Stop must unblock run.
|
// Stop must unblock run.
|
||||||
Run () error
|
|
||||||
Stop ()
|
Stop ()
|
||||||
|
|
||||||
// Do performs a callback function in the main thread as soon as
|
// Do performs a callback function in the event loop thread as soon as
|
||||||
// possible. This method must be safe to call concurrently.
|
// possible. This method must be safe to call concurrently.
|
||||||
Do (func ())
|
Do (func ())
|
||||||
}
|
}
|
||||||
|
|
|
@ -1,3 +1,5 @@
|
||||||
|
// Canvas defines a standard interface for images that support drawing
|
||||||
|
// primitives.
|
||||||
package canvas
|
package canvas
|
||||||
|
|
||||||
import "image"
|
import "image"
|
||||||
|
@ -6,32 +8,35 @@ import "image/color"
|
||||||
|
|
||||||
// Cap represents a stroke cap type.
|
// Cap represents a stroke cap type.
|
||||||
type Cap int; const (
|
type Cap int; const (
|
||||||
CapButt Cap = iota
|
CapButt Cap = iota // Square cap that ends at the point
|
||||||
CapRound
|
CapRound // Round cap that surrounds the point
|
||||||
CapSquare
|
CapSquare // square cap that surrounds the point
|
||||||
)
|
)
|
||||||
|
|
||||||
// Joint represents a stroke joint type.
|
// Joint represents a stroke joint type.
|
||||||
type Joint int; const (
|
type Joint int; const (
|
||||||
JointRount Joint = iota
|
JointRount Joint = iota // Rounded joint
|
||||||
JointSharp
|
JointSharp // Sharp joint
|
||||||
JointMiter
|
JointMiter // Clipped/beveled joint
|
||||||
)
|
)
|
||||||
|
|
||||||
// StrokeAlign determines whether a stroke is drawn inside, outside, or on a
|
// StrokeAlign determines whether a stroke is drawn inside, outside, or on a
|
||||||
// path.
|
// path.
|
||||||
type StrokeAlign int; const (
|
type StrokeAlign int; const (
|
||||||
StrokeAlignCenter StrokeAlign = iota
|
StrokeAlignCenter StrokeAlign = iota // Centered on the path
|
||||||
StrokeAlignInner
|
StrokeAlignInner // Inset into the path
|
||||||
StrokeAlignOuter
|
StrokeAlignOuter // Outset around the path
|
||||||
)
|
)
|
||||||
|
|
||||||
// Pen represents a drawing context that is linked to a canvas. Each canvas can
|
// Pen represents a drawing context that is linked to a canvas. Each canvas can
|
||||||
// have multiple pens associated with it, each maintaining their own drawing
|
// have multiple pens associated with it, each maintaining their own drawing
|
||||||
// context.
|
// context.
|
||||||
type Pen interface {
|
type Pen interface {
|
||||||
// Draw draws a path
|
// Rectangle draws a rectangle
|
||||||
Draw (points ...image.Point)
|
Rectangle (image.Rectangle)
|
||||||
|
|
||||||
|
// Path draws a path
|
||||||
|
Path (points ...image.Point)
|
||||||
|
|
||||||
Closed (bool) // if the path is closed
|
Closed (bool) // if the path is closed
|
||||||
Cap (Cap) // line cap stype
|
Cap (Cap) // line cap stype
|
||||||
|
@ -39,9 +44,9 @@ type Pen interface {
|
||||||
StrokeWeight (int) // how thick the stroke is
|
StrokeWeight (int) // how thick the stroke is
|
||||||
StrokeAlign (StrokeAlign) // where the stroke is drawn
|
StrokeAlign (StrokeAlign) // where the stroke is drawn
|
||||||
|
|
||||||
// set the stroke/fill to a solid color
|
Stroke (color.Color) // Sets the stroke to a solid color
|
||||||
Stroke (color.Color)
|
Fill (color.Color) // Sets the fill to a solid color
|
||||||
Fill (color.Color)
|
Texture (Texture) // Overlaps a texture onto the fill color
|
||||||
}
|
}
|
||||||
|
|
||||||
// Canvas is an image that supports drawing paths.
|
// Canvas is an image that supports drawing paths.
|
||||||
|
@ -57,6 +62,7 @@ type Canvas interface {
|
||||||
|
|
||||||
// Drawer is an object that can draw to a canvas.
|
// Drawer is an object that can draw to a canvas.
|
||||||
type Drawer interface {
|
type Drawer interface {
|
||||||
|
// Draw draws to the given canvas.
|
||||||
Draw (Canvas)
|
Draw (Canvas)
|
||||||
}
|
}
|
||||||
|
|
||||||
|
|
|
@ -0,0 +1,96 @@
|
||||||
|
package canvas
|
||||||
|
|
||||||
|
import "image"
|
||||||
|
|
||||||
|
// Shatter takes in a bounding rectangle, and several rectangles to be
|
||||||
|
// subtracted from it. It returns a slice of rectangles that tile together to
|
||||||
|
// make up the difference between them. This is intended to be used for figuring
|
||||||
|
// out which areas of a container box's background are covered by other boxes so
|
||||||
|
// it doesn't waste CPU cycles drawing to those areas.
|
||||||
|
func Shatter (
|
||||||
|
glass image.Rectangle,
|
||||||
|
rocks ...image.Rectangle,
|
||||||
|
) (
|
||||||
|
tiles []image.Rectangle,
|
||||||
|
) {
|
||||||
|
// in this function, the metaphor of throwing several rocks at a sheet
|
||||||
|
// of glass is used to illustrate the concept.
|
||||||
|
|
||||||
|
tiles = []image.Rectangle { glass }
|
||||||
|
for _, rock := range rocks {
|
||||||
|
|
||||||
|
// check each tile to see if the rock has collided with it
|
||||||
|
tileLen := len(tiles)
|
||||||
|
for tileIndex := 0; tileIndex < tileLen; tileIndex ++ {
|
||||||
|
tile := tiles[tileIndex]
|
||||||
|
if !rock.Overlaps(tile) { continue }
|
||||||
|
newTiles, n := shatterOnce(tile, rock)
|
||||||
|
if n > 0 {
|
||||||
|
// the tile was shattered into one or more sub
|
||||||
|
// tiles
|
||||||
|
tiles[tileIndex] = newTiles[0]
|
||||||
|
tiles = append(tiles, newTiles[1:n]...)
|
||||||
|
} else {
|
||||||
|
// the tile was entirely obscured by the rock
|
||||||
|
// and must be wholly removed
|
||||||
|
tiles = remove(tiles, tileIndex)
|
||||||
|
tileIndex --
|
||||||
|
tileLen --
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
return
|
||||||
|
}
|
||||||
|
|
||||||
|
func shatterOnce (glass, rock image.Rectangle) (tiles [4]image.Rectangle, n int) {
|
||||||
|
rock = rock.Intersect(glass)
|
||||||
|
|
||||||
|
// |'''''''''''|
|
||||||
|
// | |
|
||||||
|
// |###|'''| |
|
||||||
|
// |###|___| |
|
||||||
|
// | |
|
||||||
|
// |___________|
|
||||||
|
if rock.Min.X > glass.Min.X { tiles[n] = image.Rect (
|
||||||
|
glass.Min.X, rock.Min.Y,
|
||||||
|
rock.Min.X, rock.Max.Y,
|
||||||
|
); n ++ }
|
||||||
|
|
||||||
|
// |'''''''''''|
|
||||||
|
// | |
|
||||||
|
// | |'''|###|
|
||||||
|
// | |___|###|
|
||||||
|
// | |
|
||||||
|
// |___________|
|
||||||
|
if rock.Max.X < glass.Max.X { tiles[n] = image.Rect (
|
||||||
|
rock.Max.X, rock.Min.Y,
|
||||||
|
glass.Max.X, rock.Max.Y,
|
||||||
|
); n ++ }
|
||||||
|
|
||||||
|
// |###########|
|
||||||
|
// |###########|
|
||||||
|
// | |'''| |
|
||||||
|
// | |___| |
|
||||||
|
// | |
|
||||||
|
// |___________|
|
||||||
|
if rock.Min.Y > glass.Min.Y { tiles[n] = image.Rect (
|
||||||
|
glass.Min.X, glass.Min.Y,
|
||||||
|
glass.Max.X, rock.Min.Y,
|
||||||
|
); n ++ }
|
||||||
|
|
||||||
|
// |'''''''''''|
|
||||||
|
// | |
|
||||||
|
// | |'''| |
|
||||||
|
// | |___| |
|
||||||
|
// |###########|
|
||||||
|
// |###########|
|
||||||
|
if rock.Max.Y < glass.Max.Y { tiles[n] = image.Rect (
|
||||||
|
glass.Min.X, rock.Max.Y,
|
||||||
|
glass.Max.X, glass.Max.Y,
|
||||||
|
); n ++ }
|
||||||
|
return
|
||||||
|
}
|
||||||
|
|
||||||
|
func remove[ELEMENT any] (slice []ELEMENT, s int) []ELEMENT {
|
||||||
|
return append(slice[:s], slice[s + 1:]...)
|
||||||
|
}
|
|
@ -0,0 +1,20 @@
|
||||||
|
package canvas
|
||||||
|
|
||||||
|
import "io"
|
||||||
|
import "image"
|
||||||
|
|
||||||
|
// Texture is a handle that points to a 2D raster image managed by the backend.
|
||||||
|
type Texture interface {
|
||||||
|
image.Image
|
||||||
|
|
||||||
|
// Clip returns a smaller section of this texture, pointing to the same
|
||||||
|
// internal data.
|
||||||
|
Clip (image.Rectangle) Texture
|
||||||
|
}
|
||||||
|
|
||||||
|
// TextureCloser is a texture that can be closed. Anything that receives a
|
||||||
|
// TextureCloser must close it after use.
|
||||||
|
type TextureCloser interface {
|
||||||
|
Texture
|
||||||
|
io.Closer
|
||||||
|
}
|
|
@ -27,7 +27,10 @@ func (mime Mime) String () string {
|
||||||
return mime.Type + "/" + mime.Subtype
|
return mime.Type + "/" + mime.Subtype
|
||||||
}
|
}
|
||||||
|
|
||||||
|
// MimePlain returns the MIME type of plain text.
|
||||||
func MimePlain () Mime { return Mime { "text", "plain" } }
|
func MimePlain () Mime { return Mime { "text", "plain" } }
|
||||||
|
|
||||||
|
// MimeFile returns the MIME type of a file path/URI.
|
||||||
func MimeFile () Mime { return Mime { "text", "uri-list" } }
|
func MimeFile () Mime { return Mime { "text", "uri-list" } }
|
||||||
|
|
||||||
type byteReadCloser struct { *bytes.Reader }
|
type byteReadCloser struct { *bytes.Reader }
|
||||||
|
|
|
@ -1,3 +1,5 @@
|
||||||
|
// Package event provides a system for broadcasting events to multiple event
|
||||||
|
// handlers.
|
||||||
package event
|
package event
|
||||||
|
|
||||||
// A cookie is returned when you add an event handler so you can remove it
|
// A cookie is returned when you add an event handler so you can remove it
|
||||||
|
@ -7,46 +9,77 @@ type Cookie interface {
|
||||||
Close ()
|
Close ()
|
||||||
}
|
}
|
||||||
|
|
||||||
// Broadcaster manages event listeners
|
// Broadcaster manages event listeners.
|
||||||
type Broadcaster struct {
|
type Broadcaster[L any] struct {
|
||||||
lastID int
|
lastID int
|
||||||
listeners map[int] func ()
|
listeners map[int] L
|
||||||
}
|
}
|
||||||
|
|
||||||
// Connect adds a new listener to the broadcaster and returns a corresponding
|
// Connect adds a new listener to the broadcaster and returns a corresponding
|
||||||
// cookie.
|
// cookie.
|
||||||
func (broadcaster *Broadcaster) Connect (listener func ()) Cookie {
|
func (broadcaster *Broadcaster[L]) Connect (listener L) Cookie {
|
||||||
if listener == nil { return nil }
|
broadcaster.ensure()
|
||||||
|
|
||||||
if broadcaster.listeners == nil {
|
|
||||||
broadcaster.listeners = make(map[int] func ())
|
|
||||||
}
|
|
||||||
|
|
||||||
cookie := broadcaster.newCookie()
|
cookie := broadcaster.newCookie()
|
||||||
broadcaster.listeners[cookie.id] = listener
|
broadcaster.listeners[cookie.id] = listener
|
||||||
return cookie
|
return cookie
|
||||||
}
|
}
|
||||||
|
|
||||||
// Broadcast runs all event listeners at once.
|
// Listeners returns a map of all connected listeners.
|
||||||
func (broadcaster *Broadcaster) Broadcast () {
|
func (broadcaster *Broadcaster[L]) Listeners () map[int] L {
|
||||||
for _, listener := range broadcaster.listeners {
|
broadcaster.ensure()
|
||||||
listener()
|
return broadcaster.listeners
|
||||||
}
|
|
||||||
}
|
}
|
||||||
|
|
||||||
func (broadcaster *Broadcaster) newCookie () cookie {
|
func (broadcaster *Broadcaster[L]) newCookie () cookie[L] {
|
||||||
broadcaster.lastID ++
|
broadcaster.lastID ++
|
||||||
return cookie {
|
return cookie[L] {
|
||||||
id: broadcaster.lastID,
|
id: broadcaster.lastID,
|
||||||
broadcaster: broadcaster,
|
broadcaster: broadcaster,
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
|
||||||
type cookie struct {
|
func (broadcaster *Broadcaster[L]) ensure () {
|
||||||
id int
|
if broadcaster.listeners == nil {
|
||||||
broadcaster *Broadcaster
|
broadcaster.listeners = make(map[int] L)
|
||||||
|
}
|
||||||
}
|
}
|
||||||
|
|
||||||
func (cookie cookie) Close () {
|
// NoCookie is a cookie that does nothing when closed.
|
||||||
|
type NoCookie struct { }
|
||||||
|
func (NoCookie) Close () { }
|
||||||
|
|
||||||
|
type cookie[L any] struct {
|
||||||
|
id int
|
||||||
|
broadcaster *Broadcaster[L]
|
||||||
|
}
|
||||||
|
|
||||||
|
func (cookie cookie[L]) Close () {
|
||||||
delete(cookie.broadcaster.listeners, cookie.id)
|
delete(cookie.broadcaster.listeners, cookie.id)
|
||||||
}
|
}
|
||||||
|
|
||||||
|
// FuncBroadcaster is a broadcaster that manages functions with no arguments.
|
||||||
|
type FuncBroadcaster struct {
|
||||||
|
Broadcaster[func ()]
|
||||||
|
}
|
||||||
|
|
||||||
|
// Broadcast calls all connected listener funcs.
|
||||||
|
func (broadcaster *FuncBroadcaster) Broadcast () {
|
||||||
|
for _, listener := range broadcaster.Listeners() {
|
||||||
|
listener()
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
type multiCookie []Cookie
|
||||||
|
|
||||||
|
// MultiCookie creates a single cookie that, when closed, closes a list of other
|
||||||
|
// cookies.
|
||||||
|
func MultiCookie (cookies ...Cookie) Cookie {
|
||||||
|
return multiCookie(cookies)
|
||||||
|
}
|
||||||
|
|
||||||
|
func (cookies multiCookie) Close () {
|
||||||
|
for _, cookie := range cookies {
|
||||||
|
cookie.Close()
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
2
go.mod
2
go.mod
|
@ -2,4 +2,4 @@ module git.tebibyte.media/tomo/tomo
|
||||||
|
|
||||||
go 1.20
|
go 1.20
|
||||||
|
|
||||||
require golang.org/x/image v0.8.0
|
require golang.org/x/image v0.11.0
|
||||||
|
|
3
go.sum
3
go.sum
|
@ -3,6 +3,8 @@ golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACk
|
||||||
golang.org/x/crypto v0.0.0-20210921155107-089bfa567519/go.mod h1:GvvjBRRGRdwPK5ydBHafDWAxML/pGHZbMvKqRZ5+Abc=
|
golang.org/x/crypto v0.0.0-20210921155107-089bfa567519/go.mod h1:GvvjBRRGRdwPK5ydBHafDWAxML/pGHZbMvKqRZ5+Abc=
|
||||||
golang.org/x/image v0.8.0 h1:agUcRXV/+w6L9ryntYYsF2x9fQTMd4T8fiiYXAVW6Jg=
|
golang.org/x/image v0.8.0 h1:agUcRXV/+w6L9ryntYYsF2x9fQTMd4T8fiiYXAVW6Jg=
|
||||||
golang.org/x/image v0.8.0/go.mod h1:PwLxp3opCYg4WR2WO9P0L6ESnsD6bLTWcw8zanLMVFM=
|
golang.org/x/image v0.8.0/go.mod h1:PwLxp3opCYg4WR2WO9P0L6ESnsD6bLTWcw8zanLMVFM=
|
||||||
|
golang.org/x/image v0.11.0 h1:ds2RoQvBvYTiJkwpSFDwCcDFNX7DqjL2WsUgTNk0Ooo=
|
||||||
|
golang.org/x/image v0.11.0/go.mod h1:bglhjqbqVuEb9e9+eNR45Jfu7D+T4Qan+NhQk8Ck2P8=
|
||||||
golang.org/x/mod v0.6.0-dev.0.20220419223038-86c51ed26bb4/go.mod h1:jJ57K6gSWd91VN4djpZkiMVwK6gcyfeH4XE8wZrZaV4=
|
golang.org/x/mod v0.6.0-dev.0.20220419223038-86c51ed26bb4/go.mod h1:jJ57K6gSWd91VN4djpZkiMVwK6gcyfeH4XE8wZrZaV4=
|
||||||
golang.org/x/mod v0.8.0/go.mod h1:iBbtSCu2XBx23ZKBPSOrRkjjQPZFPuis4dIYUhu/chs=
|
golang.org/x/mod v0.8.0/go.mod h1:iBbtSCu2XBx23ZKBPSOrRkjjQPZFPuis4dIYUhu/chs=
|
||||||
golang.org/x/net v0.0.0-20190620200207-3b0461eec859/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
|
golang.org/x/net v0.0.0-20190620200207-3b0461eec859/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
|
||||||
|
@ -26,6 +28,7 @@ golang.org/x/text v0.3.3/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
|
||||||
golang.org/x/text v0.3.7/go.mod h1:u+2+/6zg+i71rQMx5EYifcz6MCKuco9NR6JIITiCfzQ=
|
golang.org/x/text v0.3.7/go.mod h1:u+2+/6zg+i71rQMx5EYifcz6MCKuco9NR6JIITiCfzQ=
|
||||||
golang.org/x/text v0.7.0/go.mod h1:mrYo+phRRbMaCq/xk9113O4dZlRixOauAjOtrjsXDZ8=
|
golang.org/x/text v0.7.0/go.mod h1:mrYo+phRRbMaCq/xk9113O4dZlRixOauAjOtrjsXDZ8=
|
||||||
golang.org/x/text v0.10.0/go.mod h1:TvPlkZtksWOMsz7fbANvkp4WM8x/WCo/om8BMLbz+aE=
|
golang.org/x/text v0.10.0/go.mod h1:TvPlkZtksWOMsz7fbANvkp4WM8x/WCo/om8BMLbz+aE=
|
||||||
|
golang.org/x/text v0.12.0/go.mod h1:TvPlkZtksWOMsz7fbANvkp4WM8x/WCo/om8BMLbz+aE=
|
||||||
golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
|
golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
|
||||||
golang.org/x/tools v0.0.0-20191119224855-298f0cb1881e/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
|
golang.org/x/tools v0.0.0-20191119224855-298f0cb1881e/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
|
||||||
golang.org/x/tools v0.1.12/go.mod h1:hNGJHUnrk76NpqgfD5Aqm5Crs+Hm0VOH/i9J2+nxYbc=
|
golang.org/x/tools v0.1.12/go.mod h1:hNGJHUnrk76NpqgfD5Aqm5Crs+Hm0VOH/i9J2+nxYbc=
|
||||||
|
|
|
@ -59,6 +59,18 @@ const (
|
||||||
KeyF10 Key = 138
|
KeyF10 Key = 138
|
||||||
KeyF11 Key = 139
|
KeyF11 Key = 139
|
||||||
KeyF12 Key = 140
|
KeyF12 Key = 140
|
||||||
|
KeyF13 Key = 141
|
||||||
|
KeyF14 Key = 142
|
||||||
|
KeyF15 Key = 143
|
||||||
|
KeyF16 Key = 144
|
||||||
|
KeyF17 Key = 145
|
||||||
|
KeyF18 Key = 146
|
||||||
|
KeyF19 Key = 147
|
||||||
|
KeyF20 Key = 148
|
||||||
|
KeyF21 Key = 149
|
||||||
|
KeyF22 Key = 150
|
||||||
|
KeyF23 Key = 151
|
||||||
|
KeyF24 Key = 152
|
||||||
)
|
)
|
||||||
|
|
||||||
// Button represents a mouse button.
|
// Button represents a mouse button.
|
||||||
|
|
322
object.go
322
object.go
|
@ -3,19 +3,97 @@ package tomo
|
||||||
import "image"
|
import "image"
|
||||||
import "image/color"
|
import "image/color"
|
||||||
import "golang.org/x/image/font"
|
import "golang.org/x/image/font"
|
||||||
|
import "git.tebibyte.media/tomo/tomo/text"
|
||||||
import "git.tebibyte.media/tomo/tomo/data"
|
import "git.tebibyte.media/tomo/tomo/data"
|
||||||
import "git.tebibyte.media/tomo/tomo/event"
|
import "git.tebibyte.media/tomo/tomo/event"
|
||||||
import "git.tebibyte.media/tomo/tomo/input"
|
import "git.tebibyte.media/tomo/tomo/input"
|
||||||
import "git.tebibyte.media/tomo/tomo/canvas"
|
import "git.tebibyte.media/tomo/tomo/canvas"
|
||||||
|
|
||||||
type Inset [4]int
|
// Side represents one side of a rectangle.
|
||||||
type Gap image.Point
|
type Side int; const (
|
||||||
|
SideTop Side = iota
|
||||||
|
SideRight
|
||||||
|
SideBottom
|
||||||
|
SideLeft
|
||||||
|
)
|
||||||
|
|
||||||
|
// Inset represents a rectangle inset that can have a different value for each
|
||||||
|
// side.
|
||||||
|
type Inset [4]int
|
||||||
|
|
||||||
|
// I allows you to create an inset in a CSS-ish way:
|
||||||
|
//
|
||||||
|
// - One argument: all sides are set to this value
|
||||||
|
// - Two arguments: the top and bottom sides are set to the first value, and
|
||||||
|
// the left and right sides are set to the second value.
|
||||||
|
// - Three arguments: the top side is set by the first value, the left and
|
||||||
|
// right sides are set by the second vaue, and the bottom side is set by the
|
||||||
|
// third value.
|
||||||
|
// - Four arguments: each value corresponds to a side.
|
||||||
|
//
|
||||||
|
// This function will panic if an argument count that isn't one of these is
|
||||||
|
// given.
|
||||||
|
func I (sides ...int) Inset {
|
||||||
|
switch len(sides) {
|
||||||
|
case 1: return Inset { sides[0], sides[0], sides[0], sides[0] }
|
||||||
|
case 2: return Inset { sides[0], sides[1], sides[0], sides[1] }
|
||||||
|
case 3: return Inset { sides[0], sides[1], sides[2], sides[1] }
|
||||||
|
case 4: return Inset { sides[0], sides[1], sides[2], sides[3] }
|
||||||
|
default: panic("I: illegal argument count.")
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
// Apply returns the given rectangle, shrunk on all four sides by the given
|
||||||
|
// inset. If a measurment of the inset is negative, that side will instead be
|
||||||
|
// expanded outward. If the rectangle's dimensions cannot be reduced any
|
||||||
|
// further, an empty rectangle near its center will be returned.
|
||||||
|
func (inset Inset) Apply (bigger image.Rectangle) (smaller image.Rectangle) {
|
||||||
|
smaller = bigger
|
||||||
|
if smaller.Dx() < inset[3] + inset[1] {
|
||||||
|
smaller.Min.X = (smaller.Min.X + smaller.Max.X) / 2
|
||||||
|
smaller.Max.X = smaller.Min.X
|
||||||
|
} else {
|
||||||
|
smaller.Min.X += inset[3]
|
||||||
|
smaller.Max.X -= inset[1]
|
||||||
|
}
|
||||||
|
|
||||||
|
if smaller.Dy() < inset[0] + inset[2] {
|
||||||
|
smaller.Min.Y = (smaller.Min.Y + smaller.Max.Y) / 2
|
||||||
|
smaller.Max.Y = smaller.Min.Y
|
||||||
|
} else {
|
||||||
|
smaller.Min.Y += inset[0]
|
||||||
|
smaller.Max.Y -= inset[2]
|
||||||
|
}
|
||||||
|
return
|
||||||
|
}
|
||||||
|
|
||||||
|
// Inverse returns a negated version of the inset.
|
||||||
|
func (inset Inset) Inverse () (prime Inset) {
|
||||||
|
return Inset {
|
||||||
|
inset[0] * -1,
|
||||||
|
inset[1] * -1,
|
||||||
|
inset[2] * -1,
|
||||||
|
inset[3] * -1,
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
// Horizontal returns the sum of SideRight and SideLeft.
|
||||||
|
func (inset Inset) Horizontal () int {
|
||||||
|
return inset[SideRight] + inset[SideLeft]
|
||||||
|
}
|
||||||
|
|
||||||
|
// Vertical returns the sum of SideTop and SideBottom.
|
||||||
|
func (inset Inset) Vertical () int {
|
||||||
|
return inset[SideTop] + inset[SideBottom]
|
||||||
|
}
|
||||||
|
|
||||||
|
// Border represents a single border of a box.
|
||||||
type Border struct {
|
type Border struct {
|
||||||
Width Inset
|
Width Inset
|
||||||
Color [4]color.Color
|
Color [4]color.Color
|
||||||
}
|
}
|
||||||
|
|
||||||
|
// Align lists basic alignment types.
|
||||||
type Align int; const (
|
type Align int; const (
|
||||||
AlignStart Align = iota // similar to left-aligned text
|
AlignStart Align = iota // similar to left-aligned text
|
||||||
AlignMiddle // similar to center-aligned text
|
AlignMiddle // similar to center-aligned text
|
||||||
|
@ -23,29 +101,80 @@ type Align int; const (
|
||||||
AlignEven // similar to justified text
|
AlignEven // similar to justified text
|
||||||
)
|
)
|
||||||
|
|
||||||
|
// Object is any obscreen object. Each object must be linked to a box, even if
|
||||||
|
// it is that box.
|
||||||
type Object interface {
|
type Object interface {
|
||||||
Box () Box
|
GetBox () Box
|
||||||
}
|
}
|
||||||
|
|
||||||
|
// Box is a basic styled box.
|
||||||
type Box interface {
|
type Box interface {
|
||||||
Object
|
Object
|
||||||
|
|
||||||
|
// Window returns the Window this Box is a part of.
|
||||||
|
Window () Window
|
||||||
|
// Bounds returns the outer bounding rectangle of the Box relative to
|
||||||
|
// the Window.
|
||||||
Bounds () image.Rectangle
|
Bounds () image.Rectangle
|
||||||
|
// InnerBounds returns the inner bounding rectangle of the box. It is
|
||||||
|
// the value of Bounds inset by the Box's border and padding.
|
||||||
InnerBounds () image.Rectangle
|
InnerBounds () image.Rectangle
|
||||||
|
// MinimumSize returns the minimum width and height this Box's bounds
|
||||||
|
// can be set to. This will return the value of whichever of these is
|
||||||
|
// greater:
|
||||||
|
// - The size as set by SetMinimumSize
|
||||||
|
// - The size taken up by the Box's border and padding. If there is
|
||||||
|
// internal content that does not overflow, the size of that is also
|
||||||
|
// taken into account here.
|
||||||
|
MinimumSize () image.Point
|
||||||
|
// SetBounds sets the bounding rectangle of this Box relative to the
|
||||||
|
// Window.
|
||||||
SetBounds (image.Rectangle)
|
SetBounds (image.Rectangle)
|
||||||
|
// SetColor sets the background color of this Box.
|
||||||
SetColor (color.Color)
|
SetColor (color.Color)
|
||||||
|
// SetTexture sets a repeating background texture. If the texture is
|
||||||
|
// transparent, it will be overlayed atop the color specified by
|
||||||
|
// SetColor().
|
||||||
|
SetTexture (canvas.Texture)
|
||||||
|
// SetBorder sets the Border(s) of the box. The first Border will be the
|
||||||
|
// most outset, and the last Border will be the most inset.
|
||||||
SetBorder (...Border)
|
SetBorder (...Border)
|
||||||
SetMinimumSize (int, int)
|
// SetMinimumSize sets the minimum width and height of the box, as
|
||||||
|
// described in MinimumSize.
|
||||||
|
SetMinimumSize (image.Point)
|
||||||
|
// SetPadding sets the padding between the Box's innermost Border and
|
||||||
|
// its content.
|
||||||
SetPadding (Inset)
|
SetPadding (Inset)
|
||||||
|
|
||||||
|
// SetDNDData sets the data that will be picked up if this Box is
|
||||||
|
// dragged. If this is nil (which is the default), this Box will not be
|
||||||
|
// picked up.
|
||||||
SetDNDData (data.Data)
|
SetDNDData (data.Data)
|
||||||
|
// SetDNDAccept sets the type of data that can be dropped onto this Box.
|
||||||
|
// If this is nil (which is the default), this Box will reject all
|
||||||
|
// drops.
|
||||||
SetDNDAccept (...data.Mime)
|
SetDNDAccept (...data.Mime)
|
||||||
|
// SetFocused sets whether or not this Box has keyboard focus. If set to
|
||||||
|
// true, this method will steal focus away from whichever Object
|
||||||
|
// currently has focus.
|
||||||
SetFocused (bool)
|
SetFocused (bool)
|
||||||
|
// SetFocusable sets whether or not this Box can receive keyboard focus.
|
||||||
|
// If set to false and the Box is already focused. the focus is removed.
|
||||||
SetFocusable (bool)
|
SetFocusable (bool)
|
||||||
|
|
||||||
Focused () bool
|
|
||||||
Modifiers (func ()) input.Modifiers
|
|
||||||
MousePosition (func ()) image.Point
|
|
||||||
|
|
||||||
|
// Focused returns whether or not this Box has keyboard focus.
|
||||||
|
Focused () bool
|
||||||
|
// Modifiers returns which modifier keys on the keyboard are currently
|
||||||
|
// being held down.
|
||||||
|
Modifiers () input.Modifiers
|
||||||
|
// MousePosition returns the position of the mouse pointer relative to
|
||||||
|
// the Window.
|
||||||
|
MousePosition () image.Point
|
||||||
|
|
||||||
|
// These are event subscription functions that allow callbacks to be
|
||||||
|
// connected to particular events. Multiple callbacks may be connected
|
||||||
|
// to the same event at once. Callbacks can be removed by closing the
|
||||||
|
// returned cookie.
|
||||||
OnFocusEnter (func ()) event.Cookie
|
OnFocusEnter (func ()) event.Cookie
|
||||||
OnFocusLeave (func ()) event.Cookie
|
OnFocusLeave (func ()) event.Cookie
|
||||||
OnDNDEnter (func ()) event.Cookie
|
OnDNDEnter (func ()) event.Cookie
|
||||||
|
@ -59,57 +188,176 @@ type Box interface {
|
||||||
OnScroll (func (deltaX, deltaY float64)) event.Cookie
|
OnScroll (func (deltaX, deltaY float64)) event.Cookie
|
||||||
OnKeyDown (func (key input.Key, numberPad bool)) event.Cookie
|
OnKeyDown (func (key input.Key, numberPad bool)) event.Cookie
|
||||||
OnKeyUp (func (key input.Key, numberPad bool)) event.Cookie
|
OnKeyUp (func (key input.Key, numberPad bool)) event.Cookie
|
||||||
|
|
||||||
ContentBounds () image.Rectangle
|
|
||||||
ScrollTo (image.Point)
|
|
||||||
OnContentBoundsChange (func ()) event.Cookie
|
|
||||||
}
|
|
||||||
|
|
||||||
type TextBox interface {
|
|
||||||
Box
|
|
||||||
SetTextColor (color.Color)
|
|
||||||
SetFace (font.Face)
|
|
||||||
SetHAlign (Align)
|
|
||||||
SetVAlign (Align)
|
|
||||||
}
|
}
|
||||||
|
|
||||||
|
// CanvasBox is a box that can be drawn to.
|
||||||
type CanvasBox interface {
|
type CanvasBox interface {
|
||||||
Box
|
Box
|
||||||
|
|
||||||
|
// SetDrawer sets the Drawer that will be called upon to draw the Box's
|
||||||
|
// content when it is invalidated.
|
||||||
SetDrawer (canvas.Drawer)
|
SetDrawer (canvas.Drawer)
|
||||||
|
|
||||||
|
// Invalidate causes the Box's area to be redrawn at the end of the
|
||||||
|
// event cycle, even if it wouldn't be otherwise.
|
||||||
Invalidate ()
|
Invalidate ()
|
||||||
}
|
}
|
||||||
|
|
||||||
type ContainerBox interface {
|
// ContentBox is an abstract box that has some kind of content. Its only purpose
|
||||||
|
// is to be embedded into TextBox and ContainerBox.
|
||||||
|
type ContentBox interface {
|
||||||
Box
|
Box
|
||||||
SetGap (Gap)
|
|
||||||
Add (Object)
|
// SetOverflow sets whether or not the Box's content overflows
|
||||||
Delete (Object)
|
// horizontally and vertically. Overflowing content is clipped to the
|
||||||
Insert (child Object, before Object)
|
// bounds of the Box inset by all Borders (but not padding).
|
||||||
Clear ()
|
SetOverflow (horizontal, vertical bool)
|
||||||
Length () int
|
// SetAlign sets how the Box's content is distributed horizontally and
|
||||||
At (int) Object
|
// vertically.
|
||||||
SetLayout (Layout)
|
SetAlign (x, y Align)
|
||||||
|
// ContentBounds returns the bounds of the inner content of the Box
|
||||||
|
// relative to the Box's InnerBounds.
|
||||||
|
ContentBounds () image.Rectangle
|
||||||
|
// ScrollTo shifts the origin of the Box's content to the origin of the
|
||||||
|
// Box's InnerBounds, offset by the given point.
|
||||||
|
ScrollTo (image.Point)
|
||||||
|
// OnContentBoundsChange specifies a function to be called when the
|
||||||
|
// Box's ContentBounds or InnerBounds changes.
|
||||||
|
OnContentBoundsChange (func ()) event.Cookie
|
||||||
}
|
}
|
||||||
|
|
||||||
|
// TextBox is a box that contains text content.
|
||||||
|
type TextBox interface {
|
||||||
|
ContentBox
|
||||||
|
|
||||||
|
// SetText sets the text content of the Box.
|
||||||
|
SetText (string)
|
||||||
|
// SetTextColor sets the text color.
|
||||||
|
SetTextColor (color.Color)
|
||||||
|
// SetFace sets the font face text is rendered in.
|
||||||
|
SetFace (font.Face)
|
||||||
|
// SetWrap sets whether or not the text wraps.
|
||||||
|
SetWrap (bool)
|
||||||
|
|
||||||
|
// SetSelectable sets whether or not the text content can be
|
||||||
|
// highlighted/selected.
|
||||||
|
SetSelectable (bool)
|
||||||
|
// SetDotColor sets the highlight color of selected text.
|
||||||
|
SetDotColor (color.Color)
|
||||||
|
// Select sets the text cursor or selection.
|
||||||
|
Select (text.Dot)
|
||||||
|
// Dot returns the text cursor or selection.
|
||||||
|
Dot () text.Dot
|
||||||
|
// OnDotChange specifies a function to be called when the text cursor or
|
||||||
|
// selection changes.
|
||||||
|
OnDotChange (func ()) event.Cookie
|
||||||
|
}
|
||||||
|
|
||||||
|
// ContentBox is a box that can contain child Objects. It arranges them
|
||||||
|
// according to a layout rule.
|
||||||
|
type ContainerBox interface {
|
||||||
|
ContentBox
|
||||||
|
|
||||||
|
// SetGap sets the gap between child Objects.
|
||||||
|
SetGap (image.Point)
|
||||||
|
// Add appends a child Object.
|
||||||
|
Add (Object)
|
||||||
|
// Delete removes a child Object, if it is a child of this Box.
|
||||||
|
Delete (Object)
|
||||||
|
// Insert inserts a child Object before a specified Object. If the
|
||||||
|
// before Object is nil or is not contained within this Box, the
|
||||||
|
// inserted Object is appended.
|
||||||
|
Insert (child Object, before Object)
|
||||||
|
// Clear removes all child Objects.
|
||||||
|
Clear ()
|
||||||
|
// Length returns the amount of child Objects.
|
||||||
|
Length () int
|
||||||
|
// At returns the child Object at the specified index.
|
||||||
|
At (int) Object
|
||||||
|
// SetLayout sets the layout of this Box. Child Objects will be
|
||||||
|
// positioned according to it.
|
||||||
|
SetLayout (Layout)
|
||||||
|
|
||||||
|
// These methods control whether certain user input events get
|
||||||
|
// propagated to child Objects. If set to true, the relevant events will
|
||||||
|
// be sent to this container. If set to false (which is the default),
|
||||||
|
// the events will be sent to the appropriate child Object.
|
||||||
|
CaptureDND (bool)
|
||||||
|
CaptureMouse (bool)
|
||||||
|
CaptureScroll (bool)
|
||||||
|
CaptureKeyboard (bool)
|
||||||
|
}
|
||||||
|
|
||||||
|
// LayoutHints are passed to a layout to tell it how to arrange child boxes.
|
||||||
|
type LayoutHints struct {
|
||||||
|
// Bounds is the bounding rectangle that children should be placed
|
||||||
|
// within. Any padding values are already applied.
|
||||||
|
Bounds image.Rectangle
|
||||||
|
// OverflowX and OverflowY control wether child Boxes may be positioned
|
||||||
|
// outside of Bounds.
|
||||||
|
OverflowX bool
|
||||||
|
OverflowY bool
|
||||||
|
// AlignX and AlignY control how child Boxes are aligned horizontally
|
||||||
|
// and vertically. The effect of this may vary depending on the Layout.
|
||||||
|
AlignX Align
|
||||||
|
AlignY Align
|
||||||
|
// Gap controls the amount of horizontal and vertical spacing in-between
|
||||||
|
// child Boxes.
|
||||||
|
Gap image.Point
|
||||||
|
}
|
||||||
|
|
||||||
|
// A Layout can be given to a ContainerBox to arrange child objects.
|
||||||
|
type Layout interface {
|
||||||
|
// MinimumSize returns the minimum width and height of
|
||||||
|
// LayoutHints.Bounds needed to properly lay out all child Boxes.
|
||||||
|
MinimumSize (LayoutHints, []Box) image.Point
|
||||||
|
// Arrange arranges child boxes according to the given LayoutHints.
|
||||||
|
Arrange (LayoutHints, []Box)
|
||||||
|
}
|
||||||
|
|
||||||
|
// Window is an operating system window. It can contain one object.
|
||||||
type Window interface {
|
type Window interface {
|
||||||
|
// SetRoot sets the root child of the window. There can only be one at
|
||||||
|
// a time, and setting it will remove the current child if there is one.
|
||||||
SetRoot (Object)
|
SetRoot (Object)
|
||||||
SetIcon (sizes []image.Image)
|
// SetTitle sets the title of the window.
|
||||||
NewMenu (image.Rectangle) (Window, error)
|
SetTitle (string)
|
||||||
NewModal (image.Rectangle) (Window, error)
|
// SetIcon sets the icon of the window. When multiple icon sizes are
|
||||||
|
// provided, the best fitting one is chosen for display.
|
||||||
|
SetIcon (... image.Image)
|
||||||
|
// Widget returns a window representing a smaller iconified form of this
|
||||||
|
// window. How exactly this window is used depends on the platform.
|
||||||
|
// Subsequent calls to this method on the same window will return the
|
||||||
|
// same window object.
|
||||||
Widget () (Window, error)
|
Widget () (Window, error)
|
||||||
|
// NewMenu creates a new menu window. This window is undecorated and
|
||||||
|
// will close once the user clicks outside of it.
|
||||||
|
NewMenu (image.Rectangle) (Window, error)
|
||||||
|
// NewModal creates a new modal window that blocks all input to this
|
||||||
|
// window until it is closed.
|
||||||
|
NewModal (image.Rectangle) (Window, error)
|
||||||
|
// Copy copies data to the clipboard.
|
||||||
Copy (data.Data)
|
Copy (data.Data)
|
||||||
|
// Paste reads data from the clipboard. When the data is available or an
|
||||||
|
// error has occurred, the provided function will be called.
|
||||||
Paste (callback func (data.Data, error), accept ...data.Mime)
|
Paste (callback func (data.Data, error), accept ...data.Mime)
|
||||||
Close ()
|
// Show shows the window.
|
||||||
Show ()
|
Show ()
|
||||||
|
// Hide hides the window.
|
||||||
Hide ()
|
Hide ()
|
||||||
|
// Close closes the window.
|
||||||
|
Close ()
|
||||||
|
// OnClose specifies a function to be called when the window is closed.
|
||||||
OnClose (func ()) event.Cookie
|
OnClose (func ()) event.Cookie
|
||||||
}
|
}
|
||||||
|
|
||||||
|
// MainWindow is a top-level operating system window.
|
||||||
type MainWindow interface {
|
type MainWindow interface {
|
||||||
Window
|
Window
|
||||||
|
|
||||||
|
// NewChild creates a new window that is semantically a child of this
|
||||||
|
// window. It does not actually reside within this window, but it may be
|
||||||
|
// linked to it via some other means. This is intended for things like
|
||||||
|
// toolboxes and tear-off menus.
|
||||||
NewChild (image.Rectangle) (Window, error)
|
NewChild (image.Rectangle) (Window, error)
|
||||||
}
|
}
|
||||||
|
|
||||||
type Layout interface {
|
|
||||||
Arrange (image.Rectangle, Gap, []Box)
|
|
||||||
}
|
|
||||||
|
|
55
plugin.go
55
plugin.go
|
@ -1,55 +0,0 @@
|
||||||
package tomo
|
|
||||||
|
|
||||||
import "os"
|
|
||||||
import "plugin"
|
|
||||||
import "path/filepath"
|
|
||||||
|
|
||||||
var pluginPaths []string
|
|
||||||
|
|
||||||
func loadPlugins () {
|
|
||||||
for _, dir := range pluginPaths {
|
|
||||||
if dir != "" {
|
|
||||||
loadPluginsFrom(dir)
|
|
||||||
}
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
func loadPluginsFrom (dir string) {
|
|
||||||
entries, err := os.ReadDir(dir)
|
|
||||||
// its no big deal if one of the dirs doesn't exist
|
|
||||||
if err != nil { return }
|
|
||||||
|
|
||||||
for _, entry := range entries {
|
|
||||||
if entry.IsDir() { continue }
|
|
||||||
if filepath.Ext(entry.Name()) != ".so" { continue }
|
|
||||||
pluginPath := filepath.Join(dir, entry.Name())
|
|
||||||
loadPlugin(pluginPath)
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
func loadPlugin (path string) {
|
|
||||||
die := func (reason string) {
|
|
||||||
println("tomo: could not load plugin at", path + ":", reason)
|
|
||||||
}
|
|
||||||
|
|
||||||
plugin, err := plugin.Open(path)
|
|
||||||
if err != nil {
|
|
||||||
die(err.Error())
|
|
||||||
return
|
|
||||||
}
|
|
||||||
|
|
||||||
// check for and obtain basic plugin functions
|
|
||||||
name, ok := extract[func () string](plugin, "Name")
|
|
||||||
if !ok { die("does not implement Name() string"); return }
|
|
||||||
_, ok = extract[func () string](plugin, "Description")
|
|
||||||
if !ok { die("does not implement Description() string"); return }
|
|
||||||
|
|
||||||
println("tomo: loaded plugin", name())
|
|
||||||
}
|
|
||||||
|
|
||||||
func extract[T any] (plugin *plugin.Plugin, name string) (value T, ok bool) {
|
|
||||||
symbol, err := plugin.Lookup(name)
|
|
||||||
if err != nil { return }
|
|
||||||
value, ok = symbol.(T)
|
|
||||||
return
|
|
||||||
}
|
|
|
@ -0,0 +1,248 @@
|
||||||
|
package text
|
||||||
|
|
||||||
|
import "unicode"
|
||||||
|
|
||||||
|
// Dot represents a cursor or text selection. It has a start and end position,
|
||||||
|
// referring to where the user began and ended the selection respectively.
|
||||||
|
type Dot struct { Start, End int }
|
||||||
|
|
||||||
|
// EmptyDot returns a zero-width dot at the specified position.
|
||||||
|
func EmptyDot (position int) Dot {
|
||||||
|
return Dot { position, position }
|
||||||
|
}
|
||||||
|
|
||||||
|
// Canon places the lesser value at the start, and the greater value at the end.
|
||||||
|
// Note that a canonized dot does not in all cases correspond directly to the
|
||||||
|
// original, because there is a semantic value to the start and end positions.
|
||||||
|
func (dot Dot) Canon () Dot {
|
||||||
|
if dot.Start > dot.End {
|
||||||
|
return Dot { dot.End, dot.Start }
|
||||||
|
} else {
|
||||||
|
return dot
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
// Empty returns whether or not the
|
||||||
|
func (dot Dot) Empty () bool {
|
||||||
|
return dot.Start == dot.End
|
||||||
|
}
|
||||||
|
|
||||||
|
// Add shifts the dot to the right by the specified amount.
|
||||||
|
func (dot Dot) Add (delta int) Dot {
|
||||||
|
return Dot {
|
||||||
|
dot.Start + delta,
|
||||||
|
dot.End + delta,
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
// Sub shifts the dot to the left by the specified amount.
|
||||||
|
func (dot Dot) Sub (delta int) Dot {
|
||||||
|
return Dot {
|
||||||
|
dot.Start - delta,
|
||||||
|
dot.End - delta,
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
// Constrain constrains the dot's start and end from zero to length (inclusive).
|
||||||
|
func (dot Dot) Constrain (length int) Dot {
|
||||||
|
if dot.Start < 0 { dot.Start = 0 }
|
||||||
|
if dot.Start > length { dot.Start = length }
|
||||||
|
if dot.End < 0 { dot.End = 0 }
|
||||||
|
if dot.End > length { dot.End = length }
|
||||||
|
return dot
|
||||||
|
}
|
||||||
|
|
||||||
|
// Width returns how many runes the dot spans.
|
||||||
|
func (dot Dot) Width () int {
|
||||||
|
dot = dot.Canon()
|
||||||
|
return dot.End - dot.Start
|
||||||
|
}
|
||||||
|
|
||||||
|
// Slice returns the subset of text that the dot covers.
|
||||||
|
func (dot Dot) Slice (text []rune) []rune {
|
||||||
|
dot = dot.Canon().Constrain(len(text))
|
||||||
|
return text[dot.Start:dot.End]
|
||||||
|
}
|
||||||
|
|
||||||
|
// WordToLeft returns how far away to the left the next word boundary is from a
|
||||||
|
// given position.
|
||||||
|
func WordToLeft (text []rune, position int) (length int) {
|
||||||
|
if position < 1 { return }
|
||||||
|
if position > len(text) { position = len(text) }
|
||||||
|
|
||||||
|
index := position - 1
|
||||||
|
for index >= 0 && unicode.IsSpace(text[index]) {
|
||||||
|
length ++
|
||||||
|
index --
|
||||||
|
}
|
||||||
|
for index >= 0 && !unicode.IsSpace(text[index]) {
|
||||||
|
length ++
|
||||||
|
index --
|
||||||
|
}
|
||||||
|
return
|
||||||
|
}
|
||||||
|
|
||||||
|
// WordToRight returns how far away to the right the next word boundary is from
|
||||||
|
// a given position.
|
||||||
|
func WordToRight (text []rune, position int) (length int) {
|
||||||
|
if position < 0 { return }
|
||||||
|
if position > len(text) { position = len(text) }
|
||||||
|
|
||||||
|
index := position
|
||||||
|
for index < len(text) && unicode.IsSpace(text[index]) {
|
||||||
|
length ++
|
||||||
|
index ++
|
||||||
|
}
|
||||||
|
for index < len(text) && !unicode.IsSpace(text[index]) {
|
||||||
|
length ++
|
||||||
|
index ++
|
||||||
|
}
|
||||||
|
return
|
||||||
|
}
|
||||||
|
|
||||||
|
// WordAround returns a dot that surrounds the word at the specified position.
|
||||||
|
func WordAround (text []rune, position int) (around Dot) {
|
||||||
|
return Dot {
|
||||||
|
position - WordToLeft(text, position),
|
||||||
|
position + WordToRight(text, position),
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
// Backspace deletes the rune to the left of the dot. If word is true, it
|
||||||
|
// deletes up until the next word boundary on the left. If the dot is non-empty,
|
||||||
|
// it deletes the text inside of the dot.
|
||||||
|
func Backspace (text []rune, dot Dot, word bool) (result []rune, moved Dot) {
|
||||||
|
dot = dot.Constrain(len(text))
|
||||||
|
if dot.Empty() {
|
||||||
|
distance := 1
|
||||||
|
if word {
|
||||||
|
distance = WordToLeft(text, dot.End)
|
||||||
|
}
|
||||||
|
result = append (
|
||||||
|
result,
|
||||||
|
text[:dot.Sub(distance).Constrain(len(text)).End]...)
|
||||||
|
result = append(result, text[dot.End:]...)
|
||||||
|
moved = EmptyDot(dot.Sub(distance).Start)
|
||||||
|
return
|
||||||
|
} else {
|
||||||
|
return Delete(text, dot, word)
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
// Delete deletes the rune to the right of the dot. If word is true, it deletes
|
||||||
|
// up until the next word boundary on the right. If the dot is non-empty, it
|
||||||
|
// deletes the text inside of the dot.
|
||||||
|
func Delete (text []rune, dot Dot, word bool) (result []rune, moved Dot) {
|
||||||
|
dot = dot.Constrain(len(text))
|
||||||
|
if dot.Empty() {
|
||||||
|
distance := 1
|
||||||
|
if word {
|
||||||
|
distance = WordToRight(text, dot.End)
|
||||||
|
}
|
||||||
|
result = append(result, text[:dot.End]...)
|
||||||
|
result = append (
|
||||||
|
result,
|
||||||
|
text[dot.Add(distance).Constrain(len(text)).End:]...)
|
||||||
|
moved = dot
|
||||||
|
return
|
||||||
|
} else {
|
||||||
|
dot = dot.Canon()
|
||||||
|
result = append(result, text[:dot.Start]...)
|
||||||
|
result = append(result, text[dot.End:]...)
|
||||||
|
moved = EmptyDot(dot.Start)
|
||||||
|
return
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
// Lift removes the section of text inside of the dot, and returns a copy of it.
|
||||||
|
func Lift (text []rune, dot Dot) (result []rune, moved Dot, lifted []rune) {
|
||||||
|
dot = dot.Constrain(len(text))
|
||||||
|
if dot.Empty() {
|
||||||
|
moved = dot
|
||||||
|
return
|
||||||
|
}
|
||||||
|
|
||||||
|
dot = dot.Canon()
|
||||||
|
lifted = make([]rune, dot.Width())
|
||||||
|
copy(lifted, dot.Slice(text))
|
||||||
|
result = append(result, text[:dot.Start]...)
|
||||||
|
result = append(result, text[dot.End:]...)
|
||||||
|
moved = EmptyDot(dot.Start)
|
||||||
|
return
|
||||||
|
}
|
||||||
|
|
||||||
|
// Type inserts one of more runes into the text at the dot position. If the dot
|
||||||
|
// is non-empty, it replaces the text inside of the dot with the new runes.
|
||||||
|
func Type (text []rune, dot Dot, characters ...rune) (result []rune, moved Dot) {
|
||||||
|
dot = dot.Constrain(len(text))
|
||||||
|
if dot.Empty() {
|
||||||
|
result = append(result, text[:dot.End]...)
|
||||||
|
result = append(result, characters...)
|
||||||
|
if dot.End < len(text) {
|
||||||
|
result = append(result, text[dot.End:]...)
|
||||||
|
}
|
||||||
|
moved = EmptyDot(dot.Add(len(characters)).End)
|
||||||
|
return
|
||||||
|
} else {
|
||||||
|
dot = dot.Canon()
|
||||||
|
result = append(result, text[:dot.Start]...)
|
||||||
|
result = append(result, characters...)
|
||||||
|
result = append(result, text[dot.End:]...)
|
||||||
|
moved = EmptyDot(dot.Add(len(characters)).Start)
|
||||||
|
return
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
// MoveLeft moves the dot left one rune. If word is true, it moves the dot to
|
||||||
|
// the next word boundary on the left.
|
||||||
|
func MoveLeft (text []rune, dot Dot, word bool) (moved Dot) {
|
||||||
|
dot = dot.Canon().Constrain(len(text))
|
||||||
|
distance := 0
|
||||||
|
if dot.Empty() {
|
||||||
|
distance = 1
|
||||||
|
}
|
||||||
|
if word {
|
||||||
|
distance = WordToLeft(text, dot.Start)
|
||||||
|
}
|
||||||
|
moved = EmptyDot(dot.Sub(distance).Start)
|
||||||
|
return
|
||||||
|
}
|
||||||
|
|
||||||
|
// MoveRight moves the dot right one rune. If word is true, it moves the dot to
|
||||||
|
// the next word boundary on the right.
|
||||||
|
func MoveRight (text []rune, dot Dot, word bool) (moved Dot) {
|
||||||
|
dot = dot.Canon().Constrain(len(text))
|
||||||
|
distance := 0
|
||||||
|
if dot.Empty() {
|
||||||
|
distance = 1
|
||||||
|
}
|
||||||
|
if word {
|
||||||
|
distance = WordToRight(text, dot.End)
|
||||||
|
}
|
||||||
|
moved = EmptyDot(dot.Add(distance).End)
|
||||||
|
return
|
||||||
|
}
|
||||||
|
|
||||||
|
// SelectLeft moves the end of the dot left one rune. If word is true, it moves
|
||||||
|
// the end of the dot to the next word boundary on the left.
|
||||||
|
func SelectLeft (text []rune, dot Dot, word bool) (moved Dot) {
|
||||||
|
dot = dot.Constrain(len(text))
|
||||||
|
distance := 1
|
||||||
|
if word {
|
||||||
|
distance = WordToLeft(text, dot.End)
|
||||||
|
}
|
||||||
|
dot.End -= distance
|
||||||
|
return dot
|
||||||
|
}
|
||||||
|
|
||||||
|
// SelectRight moves the end of the dot right one rune. If word is true, it
|
||||||
|
// moves the end of the dot to the next word boundary on the right.
|
||||||
|
func SelectRight (text []rune, dot Dot, word bool) (moved Dot) {
|
||||||
|
dot = dot.Constrain(len(text))
|
||||||
|
distance := 1
|
||||||
|
if word {
|
||||||
|
distance = WordToRight(text, dot.End)
|
||||||
|
}
|
||||||
|
dot.End += distance
|
||||||
|
return dot
|
||||||
|
}
|
|
@ -0,0 +1,277 @@
|
||||||
|
package theme
|
||||||
|
|
||||||
|
import "git.tebibyte.media/tomo/tomo/data"
|
||||||
|
import "git.tebibyte.media/tomo/tomo/canvas"
|
||||||
|
|
||||||
|
// IconSize represents the size of an icon.
|
||||||
|
type IconSize int; const (
|
||||||
|
IconSizeSmall IconSize = iota;
|
||||||
|
IconSizeMedium
|
||||||
|
IconSizeLarge
|
||||||
|
)
|
||||||
|
|
||||||
|
// String satisfies the fmt.Stringer interface.
|
||||||
|
func (size IconSize) String () string {
|
||||||
|
switch size {
|
||||||
|
case IconSizeSmall: return "small"
|
||||||
|
case IconSizeMedium: return "medium"
|
||||||
|
case IconSizeLarge: return "large"
|
||||||
|
default: return "unknown"
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
// Icon represents an icon ID.
|
||||||
|
type Icon string
|
||||||
|
|
||||||
|
// A list of standard icon IDs.
|
||||||
|
const (
|
||||||
|
IconUnknown Icon = ""
|
||||||
|
|
||||||
|
// objects: files
|
||||||
|
IconFile Icon = "File" // generic
|
||||||
|
IconDirectory Icon = "Directory"
|
||||||
|
IconDirectoryFull Icon = "DirectoryFull"
|
||||||
|
|
||||||
|
// objects: places
|
||||||
|
IconPlaceDownloads Icon = "PlaceDownloads"
|
||||||
|
IconPlacePhotos Icon = "PlacePhotos"
|
||||||
|
IconPlaceBooks Icon = "PlaceBooks"
|
||||||
|
IconPlaceDocuments Icon = "PlaceDocuments"
|
||||||
|
IconPlaceRepositories Icon = "PlaceRepositories"
|
||||||
|
IconPlaceMusic Icon = "PlaceMusic"
|
||||||
|
IconPlaceArchives Icon = "PlaceArchives"
|
||||||
|
IconPlaceFonts Icon = "PlaceFonts"
|
||||||
|
IconPlaceBinaries Icon = "PlaceBinaries"
|
||||||
|
IconPlaceVideos Icon = "PlaceVideos"
|
||||||
|
IconPlace3DObjects Icon = "Place3DObjects"
|
||||||
|
IconPlaceHistory Icon = "PlaceHistory"
|
||||||
|
IconPlacePreferences Icon = "PlacePreferences"
|
||||||
|
|
||||||
|
// objects: storage
|
||||||
|
IconStorage Icon = "Storage" // generic
|
||||||
|
IconStorageMagneticTape Icon = "StorageMagneticTape"
|
||||||
|
IconStorageFloppyDisk Icon = "StorageFloppyDisk"
|
||||||
|
IconStorageHardDisk Icon = "StorageHardDisk"
|
||||||
|
IconStorageSolidStateDisk Icon = "StorageSolidState"
|
||||||
|
IconStorageFlashStick Icon = "StorageFlashStick"
|
||||||
|
IconStorageFlashCard Icon = "StorageFlashCard"
|
||||||
|
IconStorageROM Icon = "StorageROM"
|
||||||
|
IconStorageRAM Icon = "StorageRAM"
|
||||||
|
IconStorageCD Icon = "StorageCD"
|
||||||
|
IconStorageDVD Icon = "StorageDVD"
|
||||||
|
|
||||||
|
// objects: applications
|
||||||
|
// Keep these in sync with nasin.ApplicationRole!
|
||||||
|
IconApplication Icon = "Application" // generic
|
||||||
|
IconApplicationWebBrowser Icon = "ApplicationWebBrowser"
|
||||||
|
IconApplicationMesssanger Icon = "ApplicationMesssanger"
|
||||||
|
IconApplicationPhone Icon = "ApplicationPhone"
|
||||||
|
IconApplicationMail Icon = "ApplicationMail"
|
||||||
|
IconApplicationTerminalEmulator Icon = "ApplicationTerminalEmulator"
|
||||||
|
IconApplicationFileBrowser Icon = "ApplicationFileBrowser"
|
||||||
|
IconApplicationTextEditor Icon = "ApplicationTextEditor"
|
||||||
|
IconApplicationDocumentViewer Icon = "ApplicationDocumentViewer"
|
||||||
|
IconApplicationWordProcessor Icon = "ApplicationWordProcessor"
|
||||||
|
IconApplicationSpreadsheet Icon = "ApplicationSpreadsheet"
|
||||||
|
IconApplicationSlideshow Icon = "ApplicationSlideshow"
|
||||||
|
IconApplicationCalculator Icon = "ApplicationCalculator"
|
||||||
|
IconApplicationPreferences Icon = "ApplicationPreferences"
|
||||||
|
IconApplicationProcessManager Icon = "ApplicationProcessManager"
|
||||||
|
IconApplicationSystemInformation Icon = "ApplicationSystemInformation"
|
||||||
|
IconApplicationManual Icon = "ApplicationManual"
|
||||||
|
IconApplicationCamera Icon = "ApplicationCamera"
|
||||||
|
IconApplicationImageViewer Icon = "ApplicationImageViewer"
|
||||||
|
IconApplicationMediaPlayer Icon = "ApplicationMediaPlayer"
|
||||||
|
IconApplicationImageEditor Icon = "ApplicationImageEditor"
|
||||||
|
IconApplicationAudioEditor Icon = "ApplicationAudioEditor"
|
||||||
|
IconApplicationVideoEditor Icon = "ApplicationVideoEditor"
|
||||||
|
IconApplicationClock Icon = "ApplicationClock"
|
||||||
|
IconApplicationCalendar Icon = "ApplicationCalendar"
|
||||||
|
IconApplicationChecklist Icon = "ApplicationChecklist"
|
||||||
|
|
||||||
|
// objects: networks
|
||||||
|
IconNetwork Icon = "Network" // generic
|
||||||
|
IconNetworkLocal Icon = "NetworkLocal"
|
||||||
|
IconNetworkInternet Icon = "NetworkInternet"
|
||||||
|
IconNetworkEthernet Icon = "NetworkEthernet"
|
||||||
|
IconNetworkWireless Icon = "NetworkWireless"
|
||||||
|
IconNetworkCell Icon = "NetworkCell"
|
||||||
|
IconNetworkBluetooth Icon = "NetworkBluetooth"
|
||||||
|
IconNetworkRadio Icon = "NetworkRadio"
|
||||||
|
|
||||||
|
// objects: devices
|
||||||
|
IconDevice Icon = "Device" // generic
|
||||||
|
IconDeviceRouter Icon = "DeviceRouter"
|
||||||
|
IconDeviceServer Icon = "DeviceServer"
|
||||||
|
IconDeviceDesktop Icon = "DeviceDesktop"
|
||||||
|
IconDeviceLaptop Icon = "DeviceLaptop"
|
||||||
|
IconDeviceTablet Icon = "DeviceTablet"
|
||||||
|
IconDevicePhone Icon = "DevicePhone"
|
||||||
|
IconDeviceWatch Icon = "DeviceWatch"
|
||||||
|
IconDeviceCamera Icon = "DeviceCamera"
|
||||||
|
|
||||||
|
// objects: peripherals
|
||||||
|
IconPeripheral Icon = "Peripheral" // generic
|
||||||
|
IconPeripheralKeyboard Icon = "PeripheralKeyboard"
|
||||||
|
IconPeripheralMouse Icon = "PeripheralMouse"
|
||||||
|
IconPeripheralMonitor Icon = "PeripheralMonitor"
|
||||||
|
IconPeripheralWebcam Icon = "PeripheralWebcam"
|
||||||
|
IconPeripheralMicrophone Icon = "PeripheralMicrophone"
|
||||||
|
IconPeripheralSpeaker Icon = "PeripheralSpeaker"
|
||||||
|
IconPeripheralPenTablet Icon = "PeripheralPenTablet"
|
||||||
|
IconPeripheralTrackpad Icon = "PeripheralTrackpad"
|
||||||
|
IconPeripheralController Icon = "PeripheralController"
|
||||||
|
|
||||||
|
// objects: i/o
|
||||||
|
IconPort Icon = "Port" // generic
|
||||||
|
IconPortEthernet Icon = "PortEthernet"
|
||||||
|
IconPortUSB Icon = "PortUSB"
|
||||||
|
IconPortParallel Icon = "PortParallel"
|
||||||
|
IconPortSerial Icon = "PortSerial"
|
||||||
|
IconPortPS2 Icon = "PortPS2"
|
||||||
|
IconPortDisplay Icon = "PortDisplay"
|
||||||
|
IconPortCGA Icon = "PortCGA"
|
||||||
|
IconPortVGA Icon = "PortVGA"
|
||||||
|
IconPortHDMI Icon = "PortHDMI"
|
||||||
|
IconPortDisplayPort Icon = "PortDisplayPort"
|
||||||
|
IconPortInfrared Icon = "PortInfrared"
|
||||||
|
|
||||||
|
// actions: files
|
||||||
|
IconActionOpen Icon = "ActionOpen"
|
||||||
|
IconActionOpenIn Icon = "ActionOpenIn"
|
||||||
|
IconActionSave Icon = "ActionSave"
|
||||||
|
IconActionSaveAs Icon = "ActionSaveAs"
|
||||||
|
IconActionPrint Icon = "ActionPrint"
|
||||||
|
IconActionNew Icon = "ActionNew"
|
||||||
|
IconActionNewDirectory Icon = "ActionNewDirectory"
|
||||||
|
IconActionDelete Icon = "ActionDelete"
|
||||||
|
IconActionRename Icon = "ActionRename"
|
||||||
|
IconActionGetInformation Icon = "ActionGetInformation"
|
||||||
|
IconActionChangePermissions Icon = "ActionChangePermissions"
|
||||||
|
IconActionRevert Icon = "ActionRevert"
|
||||||
|
|
||||||
|
// actions: list management
|
||||||
|
IconActionAdd Icon = "ActionAdd"
|
||||||
|
IconActionRemove Icon = "ActionRemove"
|
||||||
|
IconActionAddBookmark Icon = "ActionAddBookmark"
|
||||||
|
IconActionRemoveBookmark Icon = "ActionRemoveBookmark"
|
||||||
|
IconActionAddFavorite Icon = "ActionAddFavorite"
|
||||||
|
IconActionRemoveFavorite Icon = "ActionRemoveFavorite"
|
||||||
|
|
||||||
|
// actions: media
|
||||||
|
IconActionPlay Icon = "ActionPlay"
|
||||||
|
IconActionPause Icon = "ActionPause"
|
||||||
|
IconActionStop Icon = "ActionStop"
|
||||||
|
IconActionFastForward Icon = "ActionFastForward"
|
||||||
|
IconActionRewind Icon = "ActionRewind"
|
||||||
|
IconActionToBeginning Icon = "ActionToBeginning"
|
||||||
|
IconActionToEnd Icon = "ActionToEnd"
|
||||||
|
IconActionRecord Icon = "ActionRecord"
|
||||||
|
IconActionVolumeUp Icon = "ActionVolumeUp"
|
||||||
|
IconActionVolumeDown Icon = "ActionVolumeDown"
|
||||||
|
IconActionMute Icon = "ActionMute"
|
||||||
|
|
||||||
|
// actions: editing
|
||||||
|
IconActionUndo Icon = "ActionUndo"
|
||||||
|
IconActionRedo Icon = "ActionRedo"
|
||||||
|
IconActionCut Icon = "ActionCut"
|
||||||
|
IconActionCopy Icon = "ActionCopy"
|
||||||
|
IconActionPaste Icon = "ActionPaste"
|
||||||
|
IconActionFind Icon = "ActionFind"
|
||||||
|
IconActionReplace Icon = "ActionReplace"
|
||||||
|
IconActionSelectAll Icon = "ActionSelectAll"
|
||||||
|
IconActionSelectNone Icon = "ActionSelectNone"
|
||||||
|
IconActionIncrement Icon = "ActionIncrement"
|
||||||
|
IconActionDecrement Icon = "ActionDecrement"
|
||||||
|
|
||||||
|
// actions: window management
|
||||||
|
IconActionClose Icon = "ActionClose"
|
||||||
|
IconActionQuit Icon = "ActionQuit"
|
||||||
|
IconActionIconify Icon = "ActionIconify"
|
||||||
|
IconActionShade Icon = "ActionShade"
|
||||||
|
IconActionMaximize Icon = "ActionMaximize"
|
||||||
|
IconActionFullScreen Icon = "ActionFullScreen"
|
||||||
|
IconActionRestore Icon = "ActionRestore"
|
||||||
|
|
||||||
|
// actions: view
|
||||||
|
IconActionExpand Icon = "ActionExpand"
|
||||||
|
IconActionContract Icon = "ActionContract"
|
||||||
|
IconActionBack Icon = "ActionBack"
|
||||||
|
IconActionForward Icon = "ActionForward"
|
||||||
|
IconActionUp Icon = "ActionUp"
|
||||||
|
IconActionDown Icon = "ActionDown"
|
||||||
|
IconActionReload Icon = "ActionReload"
|
||||||
|
IconActionZoomIn Icon = "ActionZoomIn"
|
||||||
|
IconActionZoomOut Icon = "ActionZoomOut"
|
||||||
|
IconActionZoomReset Icon = "ActionZoomReset"
|
||||||
|
IconActionMove Icon = "ActionMove"
|
||||||
|
IconActionResize Icon = "ActionResize"
|
||||||
|
IconActionGoTo Icon = "ActionGoTo"
|
||||||
|
|
||||||
|
// actions: tools
|
||||||
|
IconActionTransform Icon = "ActionTransform"
|
||||||
|
IconActionTranslate Icon = "ActionTranslate"
|
||||||
|
IconActionRotate Icon = "ActionRotate"
|
||||||
|
IconActionScale Icon = "ActionScale"
|
||||||
|
IconActionWarp Icon = "ActionWarp"
|
||||||
|
IconActionCornerPin Icon = "ActionCornerPin"
|
||||||
|
IconActionSelectRectangle Icon = "ActionSelectRectangle"
|
||||||
|
IconActionSelectEllipse Icon = "ActionSelectEllipse"
|
||||||
|
IconActionSelectLasso Icon = "ActionSelectLasso"
|
||||||
|
IconActionSelectGeometric Icon = "ActionSelectGeometric"
|
||||||
|
IconActionSelectAuto Icon = "ActionSelectAuto"
|
||||||
|
IconActionCrop Icon = "ActionCrop"
|
||||||
|
IconActionFill Icon = "ActionFill"
|
||||||
|
IconActionGradient Icon = "ActionGradient"
|
||||||
|
IconActionPencil Icon = "ActionPencil"
|
||||||
|
IconActionBrush Icon = "ActionBrush"
|
||||||
|
IconActionEraser Icon = "ActionEraser"
|
||||||
|
IconActionText Icon = "ActionText"
|
||||||
|
IconActionEyedropper Icon = "ActionEyedropper"
|
||||||
|
|
||||||
|
// status: dialog
|
||||||
|
IconStatusInformation Icon = "StatusInformation"
|
||||||
|
IconStatusQuestion Icon = "StatusQuestion"
|
||||||
|
IconStatusWarning Icon = "StatusWarning"
|
||||||
|
IconStatusError Icon = "StatusError"
|
||||||
|
IconStatusCancel Icon = "StatusCancel"
|
||||||
|
IconStatusOkay Icon = "StatusOkay"
|
||||||
|
|
||||||
|
// status: network
|
||||||
|
IconStatusCellSignal0 Icon = "StatusCellSignal0"
|
||||||
|
IconStatusCellSignal1 Icon = "StatusCellSignal1"
|
||||||
|
IconStatusCellSignal2 Icon = "StatusCellSignal2"
|
||||||
|
IconStatusCellSignal3 Icon = "StatusCellSignal3"
|
||||||
|
IconStatusWirelessSignal0 Icon = "StatusWirelessSignal0"
|
||||||
|
IconStatusWirelessSignal1 Icon = "StatusWirelessSignal1"
|
||||||
|
IconStatusWirelessSignal2 Icon = "StatusWirelessSignal2"
|
||||||
|
IconStatusWirelessSignal3 Icon = "StatusWirelessSignal3"
|
||||||
|
|
||||||
|
// status: power
|
||||||
|
IconStatusBattery0 Icon = "StatusBattery0"
|
||||||
|
IconStatusBattery1 Icon = "StatusBattery1"
|
||||||
|
IconStatusBattery2 Icon = "StatusBattery2"
|
||||||
|
IconStatusBattery3 Icon = "StatusBattery3"
|
||||||
|
IconStatusBrightness0 Icon = "StatusBrightness0"
|
||||||
|
IconStatusBrightness1 Icon = "StatusBrightness1"
|
||||||
|
IconStatusBrightness2 Icon = "StatusBrightness2"
|
||||||
|
IconStatusBrightness3 Icon = "StatusBrightness3"
|
||||||
|
|
||||||
|
// status: media
|
||||||
|
IconStatusVolume0 Icon = "StatusVolume0"
|
||||||
|
IconStatusVolume1 Icon = "StatusVolume1"
|
||||||
|
IconStatusVolume2 Icon = "StatusVolume2"
|
||||||
|
IconStatusVolume3 Icon = "StatusVolume3"
|
||||||
|
)
|
||||||
|
|
||||||
|
// Texture returns a texture of the corresponding icon ID.
|
||||||
|
func (id Icon) Texture (size IconSize) canvas.Texture {
|
||||||
|
if current == nil { return nil }
|
||||||
|
return current.Icon(id, size)
|
||||||
|
}
|
||||||
|
|
||||||
|
// MimeIcon returns an icon corresponding to a MIME type.
|
||||||
|
func MimeIcon (mime data.Mime, size IconSize) canvas.Texture {
|
||||||
|
if current == nil { return nil }
|
||||||
|
return current.MimeIcon(mime, size)
|
||||||
|
}
|
|
@ -0,0 +1,109 @@
|
||||||
|
package theme
|
||||||
|
|
||||||
|
import "fmt"
|
||||||
|
import "git.tebibyte.media/tomo/tomo"
|
||||||
|
import "git.tebibyte.media/tomo/tomo/data"
|
||||||
|
import "git.tebibyte.media/tomo/tomo/event"
|
||||||
|
import "git.tebibyte.media/tomo/tomo/canvas"
|
||||||
|
|
||||||
|
// Role describes the role of an object.
|
||||||
|
type Role struct {
|
||||||
|
// Package is an optional namespace field. If specified, it should be
|
||||||
|
// the package name or module name the object is from.
|
||||||
|
Package string
|
||||||
|
|
||||||
|
// Object specifies what type of object it is. For example:
|
||||||
|
// - TextInput
|
||||||
|
// - Table
|
||||||
|
// - Label
|
||||||
|
// - Dial
|
||||||
|
// This should correspond directly to the type name of the object.
|
||||||
|
Object string
|
||||||
|
|
||||||
|
// Variant is an optional field to be used when an object has one or
|
||||||
|
// more soft variants under one type. For example, an object "Slider"
|
||||||
|
// may have variations "horizontal" and "vertical".
|
||||||
|
Variant string
|
||||||
|
}
|
||||||
|
|
||||||
|
// String satisfies the fmt.Stringer interface.
|
||||||
|
// It follows the format of:
|
||||||
|
// Package.Object[Variant]
|
||||||
|
func (r Role) String () string {
|
||||||
|
return fmt.Sprintf("%s.%s[%s]", r.Package, r.Object, r.Variant)
|
||||||
|
}
|
||||||
|
|
||||||
|
// R is shorthand for creating a Role structure.
|
||||||
|
func R (pack, object, variant string) Role {
|
||||||
|
return Role { Package: pack, Object: object, Variant: variant }
|
||||||
|
}
|
||||||
|
|
||||||
|
// Color represents a color ID.
|
||||||
|
type Color int; const (
|
||||||
|
ColorBackground Color = iota
|
||||||
|
ColorForeground
|
||||||
|
ColorRaised
|
||||||
|
ColorSunken
|
||||||
|
ColorAccent
|
||||||
|
)
|
||||||
|
|
||||||
|
// String satisfies the fmt.Stringer interface.
|
||||||
|
func (c Color) String () string {
|
||||||
|
switch c {
|
||||||
|
case ColorBackground: return "background"
|
||||||
|
case ColorForeground: return "foreground"
|
||||||
|
case ColorRaised: return "raised"
|
||||||
|
case ColorSunken: return "sunken"
|
||||||
|
case ColorAccent: return "accent"
|
||||||
|
default: return "unknown"
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
// RGBA satisfies the color.Color interface.
|
||||||
|
func (id Color) RGBA () (r, g, b, a uint32) {
|
||||||
|
if current == nil { return }
|
||||||
|
return current.RGBA(id)
|
||||||
|
}
|
||||||
|
|
||||||
|
// Theme can apply a visual style to different objects.
|
||||||
|
type Theme interface {
|
||||||
|
// A word on textures:
|
||||||
|
//
|
||||||
|
// Because textures can be linked to some resource that is outside of
|
||||||
|
// the control of Go's garbage collector, methods of Theme must not
|
||||||
|
// allocate new copies of a texture each time they are called. It is
|
||||||
|
// fine to lazily load textures and save them for later use, but the
|
||||||
|
// same texture must never be allocated multiple times as this could
|
||||||
|
// cause a memory leak.
|
||||||
|
//
|
||||||
|
// As such, textures returned by these methods must be protected.
|
||||||
|
|
||||||
|
// Apply applies the theme to the given object, according to the given
|
||||||
|
// role. This may register event listeners with the given object;
|
||||||
|
// closing the returned cookie must remove them.
|
||||||
|
Apply (tomo.Object, Role) event.Cookie
|
||||||
|
|
||||||
|
// RGBA returns the RGBA values of the corresponding color ID.
|
||||||
|
RGBA (Color) (r, g, b, a uint32)
|
||||||
|
|
||||||
|
// Icon returns a texture of the corresponding icon ID.
|
||||||
|
Icon (Icon, IconSize) canvas.Texture
|
||||||
|
|
||||||
|
// MimeIcon returns an icon corresponding to a MIME type.
|
||||||
|
MimeIcon (data.Mime, IconSize) canvas.Texture
|
||||||
|
}
|
||||||
|
|
||||||
|
var current Theme
|
||||||
|
|
||||||
|
// SetTheme sets the theme.
|
||||||
|
func SetTheme (theme Theme) {
|
||||||
|
current = theme
|
||||||
|
}
|
||||||
|
|
||||||
|
// Apply applies the current theme to the given object, according to the given
|
||||||
|
// role. This may register event listeners with the given object; closing the
|
||||||
|
// returned cookie will remove them.
|
||||||
|
func Apply (object tomo.Object, role Role) event.Cookie {
|
||||||
|
if current == nil { return event.NoCookie { } }
|
||||||
|
return current.Apply(object, role)
|
||||||
|
}
|
38
tomo.go
38
tomo.go
|
@ -1,8 +1,11 @@
|
||||||
package tomo
|
package tomo
|
||||||
|
|
||||||
|
import "sync"
|
||||||
import "image"
|
import "image"
|
||||||
import "errors"
|
import "errors"
|
||||||
|
import "git.tebibyte.media/tomo/tomo/canvas"
|
||||||
|
|
||||||
|
var backendLock sync.Mutex
|
||||||
var backend Backend
|
var backend Backend
|
||||||
|
|
||||||
// Run initializes a backend, runs the specified callback function, and runs the
|
// Run initializes a backend, runs the specified callback function, and runs the
|
||||||
|
@ -15,7 +18,10 @@ func Run (callback func ()) error {
|
||||||
|
|
||||||
back, err := Initialize()
|
back, err := Initialize()
|
||||||
if err != nil { return err }
|
if err != nil { return err }
|
||||||
|
|
||||||
|
backendLock.Lock()
|
||||||
backend = back
|
backend = back
|
||||||
|
backendLock.Unlock()
|
||||||
|
|
||||||
callback()
|
callback()
|
||||||
return backend.Run()
|
return backend.Run()
|
||||||
|
@ -30,30 +36,60 @@ func assertBackend () {
|
||||||
func Stop () {
|
func Stop () {
|
||||||
assertBackend()
|
assertBackend()
|
||||||
backend.Stop()
|
backend.Stop()
|
||||||
|
|
||||||
|
backendLock.Lock()
|
||||||
backend = nil
|
backend = nil
|
||||||
|
backendLock.Unlock()
|
||||||
}
|
}
|
||||||
|
|
||||||
func NewWindow (bounds image.Rectangle) MainWindow {
|
// Do performs a callback function in the event loop thread as soon as possible.
|
||||||
|
func Do (callback func ()) {
|
||||||
|
backendLock.Lock()
|
||||||
|
if backend != nil { backend.Do(callback) }
|
||||||
|
backendLock.Unlock()
|
||||||
|
}
|
||||||
|
|
||||||
|
// NewWindow creates and returns a window within the specified bounds on screen.
|
||||||
|
func NewWindow (bounds image.Rectangle) (MainWindow, error) {
|
||||||
assertBackend()
|
assertBackend()
|
||||||
return backend.NewWindow(bounds)
|
return backend.NewWindow(bounds)
|
||||||
}
|
}
|
||||||
|
|
||||||
|
// NewPlainWindow is like NewWindow, but it creates an undecorated window that
|
||||||
|
// does not appear in window lists. It is intended for creating things like
|
||||||
|
// docks, panels, etc.
|
||||||
|
func NewPlainWindow (bounds image.Rectangle) (MainWindow, error) {
|
||||||
|
assertBackend()
|
||||||
|
return backend.NewPlainWindow(bounds)
|
||||||
|
}
|
||||||
|
|
||||||
|
// NewBox creates and returns a basic Box.
|
||||||
func NewBox () Box {
|
func NewBox () Box {
|
||||||
assertBackend()
|
assertBackend()
|
||||||
return backend.NewBox()
|
return backend.NewBox()
|
||||||
}
|
}
|
||||||
|
|
||||||
|
// NewTextBox creates and returns a Box that can display text.
|
||||||
func NewTextBox () TextBox {
|
func NewTextBox () TextBox {
|
||||||
assertBackend()
|
assertBackend()
|
||||||
return backend.NewTextBox()
|
return backend.NewTextBox()
|
||||||
}
|
}
|
||||||
|
|
||||||
|
// NewCanvasBox creates and returns a Box that can display custom graphics.
|
||||||
func NewCanvasBox () CanvasBox {
|
func NewCanvasBox () CanvasBox {
|
||||||
assertBackend()
|
assertBackend()
|
||||||
return backend.NewCanvasBox()
|
return backend.NewCanvasBox()
|
||||||
}
|
}
|
||||||
|
|
||||||
|
// NewContainerBox creates and returns a Box that can contain other boxes.
|
||||||
func NewContainerBox () ContainerBox {
|
func NewContainerBox () ContainerBox {
|
||||||
assertBackend()
|
assertBackend()
|
||||||
return backend.NewContainerBox()
|
return backend.NewContainerBox()
|
||||||
}
|
}
|
||||||
|
|
||||||
|
// NewTexture creates a new texture from an image. When no longer in use, it
|
||||||
|
// must be freed using Close().
|
||||||
|
func NewTexture (source image.Image) canvas.TextureCloser {
|
||||||
|
assertBackend()
|
||||||
|
return backend.NewTexture(source)
|
||||||
|
}
|
||||||
|
|
22
unix.go
22
unix.go
|
@ -1,22 +0,0 @@
|
||||||
//go:build linux || darwin || freebsd
|
|
||||||
|
|
||||||
package tomo
|
|
||||||
|
|
||||||
import "os"
|
|
||||||
import "strings"
|
|
||||||
import "path/filepath"
|
|
||||||
|
|
||||||
func init () {
|
|
||||||
pathVariable := os.Getenv("TOMO_PLUGIN_PATH")
|
|
||||||
pluginPaths = strings.Split(pathVariable, ":")
|
|
||||||
pluginPaths = append (
|
|
||||||
pluginPaths,
|
|
||||||
"/usr/lib/tomo/plugins",
|
|
||||||
"/usr/local/lib/tomo/plugins")
|
|
||||||
homeDir, err := os.UserHomeDir()
|
|
||||||
if err == nil {
|
|
||||||
pluginPaths = append (
|
|
||||||
pluginPaths,
|
|
||||||
filepath.Join(homeDir, ".local/lib/tomo/plugins"))
|
|
||||||
}
|
|
||||||
}
|
|
Loading…
Reference in New Issue