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@ -0,0 +1,674 @@
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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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|
||||
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
|
||||
|
||||
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
|
||||
that plugins will be an actual viable concept.
|
||||
Tomo is a lightweight GUI toolkit written in pure Go.
|
||||
|
|
|
@ -0,0 +1,113 @@
|
|||
package tomo
|
||||
|
||||
import "image"
|
||||
|
||||
// Application represents an application object.
|
||||
type Application interface {
|
||||
// Describe returns a description of the application.
|
||||
Describe () ApplicationDescription
|
||||
|
||||
// Init performs the initial setup of the application.
|
||||
Init ()
|
||||
}
|
||||
|
||||
// ApplicationDescription describes the name and type of an application.
|
||||
type ApplicationDescription struct {
|
||||
// The name or ID of the application.
|
||||
Name string
|
||||
|
||||
// Role describes what the application does.
|
||||
Role ApplicationRole
|
||||
}
|
||||
|
||||
// String satisfies the fmt.Stringer interface.
|
||||
func (application ApplicationDescription) String () string {
|
||||
if application.Name == "" {
|
||||
return application.Role.String()
|
||||
} else {
|
||||
return application.Name
|
||||
}
|
||||
}
|
||||
|
||||
// ApplicationRole describes what an application does.
|
||||
type ApplicationRole int; const (
|
||||
RoleUnknown ApplicationRole = iota
|
||||
|
||||
RoleWebBrowser
|
||||
RoleMesssanger
|
||||
RolePhone
|
||||
RoleMail
|
||||
|
||||
RoleTerminalEmulator
|
||||
RoleFileBrowser
|
||||
RoleTextEditor
|
||||
|
||||
RoleDocumentViewer
|
||||
RoleWordProcessor
|
||||
RoleSpreadsheet
|
||||
RoleSlideshow
|
||||
RoleCalculator
|
||||
|
||||
RolePreferences
|
||||
RoleProcessManager
|
||||
RoleSystemInformation
|
||||
RoleManual
|
||||
|
||||
RoleCamera
|
||||
RoleImageViewer
|
||||
RoleMediaPlayer
|
||||
RoleImageEditor
|
||||
RoleAudioEditor
|
||||
RoleVideoEditor
|
||||
|
||||
RoleClock
|
||||
RoleCalendar
|
||||
RoleChecklist
|
||||
)
|
||||
|
||||
// String satisfies the fmt.Stringer interface.
|
||||
func (role ApplicationRole) String () string {
|
||||
switch role {
|
||||
case RoleWebBrowser: return "Web Browser"
|
||||
case RoleMesssanger: return "Messsanger"
|
||||
case RolePhone: return "Phone"
|
||||
case RoleMail: return "Mail"
|
||||
case RoleTerminalEmulator: return "Terminal Emulator"
|
||||
case RoleFileBrowser: return "File Browser"
|
||||
case RoleTextEditor: return "Text Editor"
|
||||
case RoleDocumentViewer: return "Document Viewer"
|
||||
case RoleWordProcessor: return "Word Processor"
|
||||
case RoleSpreadsheet: return "Spreadsheet"
|
||||
case RoleSlideshow: return "Slideshow"
|
||||
case RoleCalculator: return "Calculator"
|
||||
case RolePreferences: return "Preferences"
|
||||
case RoleProcessManager: return "Process Manager"
|
||||
case RoleSystemInformation: return "System Information"
|
||||
case RoleManual: return "Manual"
|
||||
case RoleCamera: return "Camera"
|
||||
case RoleImageViewer: return "Image Viewer"
|
||||
case RoleMediaPlayer: return "Media Player"
|
||||
case RoleImageEditor: return "Image Editor"
|
||||
case RoleAudioEditor: return "Audio Editor"
|
||||
case RoleVideoEditor: return "Video Editor"
|
||||
case RoleClock: return "Clock"
|
||||
case RoleCalendar: return "Calendar"
|
||||
case RoleChecklist: return "Checklist"
|
||||
default: return "unknown"
|
||||
}
|
||||
}
|
||||
|
||||
// RunApplication is like Run, but runs an application.
|
||||
func RunApplication (application Application) error {
|
||||
return Run(application.Init)
|
||||
}
|
||||
|
||||
// NewApplicationWindow creates a window for an application. It will
|
||||
// automatically set window information to signal to the OS that the window is
|
||||
// owned by the application.
|
||||
func NewApplicationWindow (application Application, bounds image.Rectangle) (MainWindow, error) {
|
||||
window, err := NewWindow(bounds)
|
||||
if err != nil { return nil, err }
|
||||
window.SetTitle(application.Describe().String())
|
||||
return window, nil
|
||||
}
|
26
backend.go
26
backend.go
|
@ -3,19 +3,39 @@ package tomo
|
|||
import "sort"
|
||||
import "image"
|
||||
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 {
|
||||
NewWindow (image.Rectangle) MainWindow
|
||||
// These methods create new objects. The backend must reject any object
|
||||
// that was not made by it.
|
||||
NewBox () Box
|
||||
NewTextBox () TextBox
|
||||
NewCanvasBox () CanvasBox
|
||||
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.
|
||||
Run () error
|
||||
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.
|
||||
Do (func ())
|
||||
}
|
||||
|
|
|
@ -1,3 +1,5 @@
|
|||
// Canvas defines a standard interface for images that support drawing
|
||||
// primitives.
|
||||
package canvas
|
||||
|
||||
import "image"
|
||||
|
@ -6,32 +8,35 @@ import "image/color"
|
|||
|
||||
// Cap represents a stroke cap type.
|
||||
type Cap int; const (
|
||||
CapButt Cap = iota
|
||||
CapRound
|
||||
CapSquare
|
||||
CapButt Cap = iota // Square cap that ends at the point
|
||||
CapRound // Round cap that surrounds the point
|
||||
CapSquare // square cap that surrounds the point
|
||||
)
|
||||
|
||||
// Joint represents a stroke joint type.
|
||||
type Joint int; const (
|
||||
JointRount Joint = iota
|
||||
JointSharp
|
||||
JointMiter
|
||||
JointRount Joint = iota // Rounded joint
|
||||
JointSharp // Sharp joint
|
||||
JointMiter // Clipped/beveled joint
|
||||
)
|
||||
|
||||
// StrokeAlign determines whether a stroke is drawn inside, outside, or on a
|
||||
// path.
|
||||
type StrokeAlign int; const (
|
||||
StrokeAlignCenter StrokeAlign = iota
|
||||
StrokeAlignInner
|
||||
StrokeAlignOuter
|
||||
StrokeAlignCenter StrokeAlign = iota // Centered on the path
|
||||
StrokeAlignInner // Inset into the path
|
||||
StrokeAlignOuter // Outset around the path
|
||||
)
|
||||
|
||||
// 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
|
||||
// context.
|
||||
type Pen interface {
|
||||
// Draw draws a path
|
||||
Draw (points ...image.Point)
|
||||
// Rectangle draws a rectangle
|
||||
Rectangle (image.Rectangle)
|
||||
|
||||
// Path draws a path
|
||||
Path (points ...image.Point)
|
||||
|
||||
Closed (bool) // if the path is closed
|
||||
Cap (Cap) // line cap stype
|
||||
|
@ -39,9 +44,9 @@ type Pen interface {
|
|||
StrokeWeight (int) // how thick the stroke is
|
||||
StrokeAlign (StrokeAlign) // where the stroke is drawn
|
||||
|
||||
// set the stroke/fill to a solid color
|
||||
Stroke (color.Color)
|
||||
Fill (color.Color)
|
||||
Stroke (color.Color) // Sets the stroke to a solid color
|
||||
Fill (color.Color) // Sets the fill to a solid color
|
||||
Texture (Texture) // Overlaps a texture onto the fill color
|
||||
}
|
||||
|
||||
// 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.
|
||||
type Drawer interface {
|
||||
// Draw draws to the given 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
|
||||
}
|
||||
|
||||
// MimePlain returns the MIME type of plain text.
|
||||
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" } }
|
||||
|
||||
type byteReadCloser struct { *bytes.Reader }
|
||||
|
|
|
@ -1,3 +1,5 @@
|
|||
// Package event provides a system for broadcasting events to multiple event
|
||||
// handlers.
|
||||
package event
|
||||
|
||||
// A cookie is returned when you add an event handler so you can remove it
|
||||
|
@ -7,46 +9,77 @@ type Cookie interface {
|
|||
Close ()
|
||||
}
|
||||
|
||||
// Broadcaster manages event listeners
|
||||
type Broadcaster struct {
|
||||
// Broadcaster manages event listeners.
|
||||
type Broadcaster[L any] struct {
|
||||
lastID int
|
||||
listeners map[int] func ()
|
||||
listeners map[int] L
|
||||
}
|
||||
|
||||
// Connect adds a new listener to the broadcaster and returns a corresponding
|
||||
// cookie.
|
||||
func (broadcaster *Broadcaster) Connect (listener func ()) Cookie {
|
||||
if listener == nil { return nil }
|
||||
|
||||
if broadcaster.listeners == nil {
|
||||
broadcaster.listeners = make(map[int] func ())
|
||||
}
|
||||
func (broadcaster *Broadcaster[L]) Connect (listener L) Cookie {
|
||||
broadcaster.ensure()
|
||||
|
||||
cookie := broadcaster.newCookie()
|
||||
broadcaster.listeners[cookie.id] = listener
|
||||
return cookie
|
||||
}
|
||||
|
||||
// Broadcast runs all event listeners at once.
|
||||
func (broadcaster *Broadcaster) Broadcast () {
|
||||
for _, listener := range broadcaster.listeners {
|
||||
listener()
|
||||
}
|
||||
// Listeners returns a map of all connected listeners.
|
||||
func (broadcaster *Broadcaster[L]) Listeners () map[int] L {
|
||||
broadcaster.ensure()
|
||||
return broadcaster.listeners
|
||||
}
|
||||
|
||||
func (broadcaster *Broadcaster) newCookie () cookie {
|
||||
func (broadcaster *Broadcaster[L]) newCookie () cookie[L] {
|
||||
broadcaster.lastID ++
|
||||
return cookie {
|
||||
return cookie[L] {
|
||||
id: broadcaster.lastID,
|
||||
broadcaster: broadcaster,
|
||||
}
|
||||
}
|
||||
|
||||
type cookie struct {
|
||||
id int
|
||||
broadcaster *Broadcaster
|
||||
func (broadcaster *Broadcaster[L]) ensure () {
|
||||
if broadcaster.listeners == nil {
|
||||
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)
|
||||
}
|
||||
|
||||
// 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
|
||||
|
||||
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/image v0.8.0 h1:agUcRXV/+w6L9ryntYYsF2x9fQTMd4T8fiiYXAVW6Jg=
|
||||
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 v0.8.0/go.mod h1:iBbtSCu2XBx23ZKBPSOrRkjjQPZFPuis4dIYUhu/chs=
|
||||
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 v0.7.0/go.mod h1:mrYo+phRRbMaCq/xk9113O4dZlRixOauAjOtrjsXDZ8=
|
||||
golang.org/x/text v0.10.0/go.mod h1:TvPlkZtksWOMsz7fbANvkp4WM8x/WCo/om8BMLbz+aE=
|
||||
golang.org/x/text v0.12.0/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 v0.0.0-20191119224855-298f0cb1881e/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
|
||||
golang.org/x/tools v0.1.12/go.mod h1:hNGJHUnrk76NpqgfD5Aqm5Crs+Hm0VOH/i9J2+nxYbc=
|
||||
|
|
|
@ -59,6 +59,18 @@ const (
|
|||
KeyF10 Key = 138
|
||||
KeyF11 Key = 139
|
||||
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.
|
||||
|
|
322
object.go
322
object.go
|
@ -3,19 +3,97 @@ package tomo
|
|||
import "image"
|
||||
import "image/color"
|
||||
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/event"
|
||||
import "git.tebibyte.media/tomo/tomo/input"
|
||||
import "git.tebibyte.media/tomo/tomo/canvas"
|
||||
|
||||
type Inset [4]int
|
||||
type Gap image.Point
|
||||
// Side represents one side of a rectangle.
|
||||
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 {
|
||||
Width Inset
|
||||
Color [4]color.Color
|
||||
}
|
||||
|
||||
// Align lists basic alignment types.
|
||||
type Align int; const (
|
||||
AlignStart Align = iota // similar to left-aligned text
|
||||
AlignMiddle // similar to center-aligned text
|
||||
|
@ -23,29 +101,80 @@ type Align int; const (
|
|||
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 {
|
||||
Box () Box
|
||||
GetBox () Box
|
||||
}
|
||||
|
||||
// Box is a basic styled box.
|
||||
type Box interface {
|
||||
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
|
||||
// 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
|
||||
// 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)
|
||||
// SetColor sets the background color of this Box.
|
||||
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)
|
||||
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)
|
||||
|
||||
// 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)
|
||||
// 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)
|
||||
// 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)
|
||||
// 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)
|
||||
|
||||
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
|
||||
OnFocusLeave (func ()) event.Cookie
|
||||
OnDNDEnter (func ()) event.Cookie
|
||||
|
@ -59,57 +188,176 @@ type Box interface {
|
|||
OnScroll (func (deltaX, deltaY float64)) event.Cookie
|
||||
OnKeyDown (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 {
|
||||
Box
|
||||
|
||||
// SetDrawer sets the Drawer that will be called upon to draw the Box's
|
||||
// content when it is invalidated.
|
||||
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 ()
|
||||
}
|
||||
|
||||
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
|
||||
SetGap (Gap)
|
||||
Add (Object)
|
||||
Delete (Object)
|
||||
Insert (child Object, before Object)
|
||||
Clear ()
|
||||
Length () int
|
||||
At (int) Object
|
||||
SetLayout (Layout)
|
||||
|
||||
// SetOverflow sets whether or not the Box's content overflows
|
||||
// horizontally and vertically. Overflowing content is clipped to the
|
||||
// bounds of the Box inset by all Borders (but not padding).
|
||||
SetOverflow (horizontal, vertical bool)
|
||||
// SetAlign sets how the Box's content is distributed horizontally and
|
||||
// vertically.
|
||||
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 {
|
||||
// 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)
|
||||
SetIcon (sizes []image.Image)
|
||||
NewMenu (image.Rectangle) (Window, error)
|
||||
NewModal (image.Rectangle) (Window, error)
|
||||
// SetTitle sets the title of the window.
|
||||
SetTitle (string)
|
||||
// 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)
|
||||
// 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)
|
||||
// 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)
|
||||
Close ()
|
||||
// Show shows the window.
|
||||
Show ()
|
||||
// Hide hides the window.
|
||||
Hide ()
|
||||
// Close closes the window.
|
||||
Close ()
|
||||
// OnClose specifies a function to be called when the window is closed.
|
||||
OnClose (func ()) event.Cookie
|
||||
}
|
||||
|
||||
// MainWindow is a top-level operating system window.
|
||||
type MainWindow interface {
|
||||
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)
|
||||
}
|
||||
|
||||
type Layout interface {
|
||||
Arrange (image.Rectangle, Gap, []Box)
|
||||
}
|
||||
|
|
|
@ -0,0 +1,188 @@
|
|||
package tomo
|
||||
|
||||
import "io"
|
||||
import "os"
|
||||
import "io/fs"
|
||||
import "strings"
|
||||
import "path/filepath"
|
||||
|
||||
// FS is Tomo's implementation of fs.FS. It provides access to a specific part
|
||||
// of the filesystem.
|
||||
type FS struct {
|
||||
path string
|
||||
}
|
||||
|
||||
// FileWriter is a writable version of fs.File.
|
||||
type FileWriter interface {
|
||||
fs.File
|
||||
io.Writer
|
||||
}
|
||||
|
||||
// ApplicationUserDataFS returns an FS that an application can use to store user
|
||||
// data files.
|
||||
func ApplicationUserDataFS (app ApplicationDescription) (*FS, error) {
|
||||
return appFs(userDataDir, app)
|
||||
}
|
||||
|
||||
// ApplicationUserConfigFS returns an FS that an application can use to store
|
||||
// user configuration files.
|
||||
func ApplicationUserConfigFS (app ApplicationDescription) (*FS, error) {
|
||||
configDir, err := os.UserConfigDir()
|
||||
if err != nil { return nil, err }
|
||||
return appFs(configDir, app)
|
||||
}
|
||||
|
||||
// ApplicationUserCacheFS returns an FS that an application can use to store
|
||||
// user cache files.
|
||||
func ApplicationUserCacheFS (app ApplicationDescription) (*FS, error) {
|
||||
cacheDir, err := os.UserCacheDir()
|
||||
if err != nil { return nil, err }
|
||||
return appFs(cacheDir, app)
|
||||
}
|
||||
|
||||
func pathErr (op, path string, err error) error {
|
||||
return &fs.PathError {
|
||||
Op: op,
|
||||
Path: path,
|
||||
Err: err,
|
||||
}
|
||||
}
|
||||
|
||||
func appFs (root string, app ApplicationDescription) (*FS, error) {
|
||||
// remove slashes
|
||||
appname := app.String()
|
||||
appname = strings.ReplaceAll(appname, "/", "-")
|
||||
appname = strings.ReplaceAll(appname, "\\", "-")
|
||||
|
||||
path := filepath.Join(root, appname)
|
||||
|
||||
// ensure the directory actually exists
|
||||
err := os.MkdirAll(path, 755)
|
||||
if err != nil { return nil, err }
|
||||
|
||||
return &FS { path: path }, nil
|
||||
}
|
||||
|
||||
func (this FS) subPath (name string) (string, error) {
|
||||
if !fs.ValidPath(name) { return "", fs.ErrInvalid }
|
||||
if strings.Contains(name, "/") { return "", fs.ErrInvalid }
|
||||
return filepath.Join(this.path, name), nil
|
||||
}
|
||||
|
||||
// Open opens the named file.
|
||||
func (this FS) Open (name string) (fs.File, error) {
|
||||
path, err := this.subPath(name)
|
||||
if err != nil {
|
||||
return nil, pathErr("open", name, err)
|
||||
}
|
||||
|
||||
return os.Open(path)
|
||||
}
|
||||
|
||||
// Create creates or truncates the named file.
|
||||
func (this FS) Create (name string) (FileWriter, error) {
|
||||
path, err := this.subPath(name)
|
||||
if err != nil {
|
||||
return nil, pathErr("create", name, err)
|
||||
}
|
||||
|
||||
return os.Create(path)
|
||||
}
|
||||
|
||||
// OpenFile is the generalized open call; most users will use Open or Create
|
||||
// instead.
|
||||
func (this FS) OpenFile (
|
||||
name string,
|
||||
flag int,
|
||||
perm os.FileMode,
|
||||
) (
|
||||
FileWriter,
|
||||
error,
|
||||
) {
|
||||
path, err := this.subPath(name)
|
||||
if err != nil {
|
||||
return nil, pathErr("open", name, err)
|
||||
}
|
||||
|
||||
return os.OpenFile(path, flag, perm)
|
||||
}
|
||||
|
||||
// ReadDir reads the named directory and returns a list of directory entries
|
||||
// sorted by filename.
|
||||
func (this FS) ReadDir (name string) ([]fs.DirEntry, error) {
|
||||
path, err := this.subPath(name)
|
||||
if err != nil {
|
||||
return nil, pathErr("readdir", name, err)
|
||||
}
|
||||
|
||||
return os.ReadDir(path)
|
||||
}
|
||||
|
||||
// ReadFile reads the named file and returns its contents.
|
||||
// A successful call returns a nil error, not io.EOF.
|
||||
// (Because ReadFile reads the whole file, the expected EOF
|
||||
// from the final Read is not treated as an error to be reported.)
|
||||
//
|
||||
// The caller is permitted to modify the returned byte slice.
|
||||
func (this FS) ReadFile (name string) ([]byte, error) {
|
||||
path, err := this.subPath(name)
|
||||
if err != nil {
|
||||
return nil, pathErr("readfile", name, err)
|
||||
}
|
||||
|
||||
return os.ReadFile(path)
|
||||
}
|
||||
|
||||
// WriteFile writes data to the named file, creating it if necessary.
|
||||
func (this FS) WriteFile (name string, data []byte, perm os.FileMode) error {
|
||||
path, err := this.subPath(name)
|
||||
if err != nil {
|
||||
return pathErr("writefile", name, err)
|
||||
}
|
||||
|
||||
return os.WriteFile(path, data, perm)
|
||||
}
|
||||
|
||||
// Stat returns a FileInfo describing the file.
|
||||
func (this FS) Stat (name string) (fs.FileInfo, error) {
|
||||
path, err := this.subPath(name)
|
||||
if err != nil {
|
||||
return nil, pathErr("stat", name, err)
|
||||
}
|
||||
|
||||
return os.Stat(path)
|
||||
}
|
||||
|
||||
// Remove removes the named file or (empty) directory.
|
||||
func (this FS) Remove (name string) error {
|
||||
path, err := this.subPath(name)
|
||||
if err != nil {
|
||||
return pathErr("remove", name, err)
|
||||
}
|
||||
|
||||
return os.Remove(path)
|
||||
}
|
||||
|
||||
// RemoveAll removes name and any children it contains.
|
||||
func (this FS) RemoveAll (name string) error {
|
||||
path, err := this.subPath(name)
|
||||
if err != nil {
|
||||
return pathErr("removeall", name, err)
|
||||
}
|
||||
|
||||
return os.RemoveAll(path)
|
||||
}
|
||||
|
||||
// Rename renames (moves) oldname to newname.
|
||||
func (this FS) Rename (oldname, newname string) error {
|
||||
oldpath, err := this.subPath(oldname)
|
||||
if err != nil {
|
||||
return pathErr("rename", oldname, err)
|
||||
}
|
||||
newpath, err := this.subPath(newname)
|
||||
if err != nil {
|
||||
return pathErr("rename", newname, err)
|
||||
}
|
||||
|
||||
return os.Rename(oldpath, newpath)
|
||||
}
|
|
@ -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 +1,441 @@
|
|||
package theme
|
||||
|
||||
import "git.tebibyte.media/tomo/tomo"
|
||||
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"
|
||||
}
|
||||
}
|
||||
|
||||
// TODO: the Icon type, along with its String method, needs to be codegen'd.
|
||||
|
||||
// Icon represents an icon ID.
|
||||
type Icon int; const (
|
||||
// --- Objects --- //
|
||||
|
||||
// files
|
||||
IconFile Icon = iota
|
||||
IconDirectory
|
||||
IconDirectoryFull
|
||||
|
||||
// places
|
||||
IconDownloads
|
||||
IconPhotos
|
||||
IconBooks
|
||||
IconDocuments
|
||||
IconRepositories
|
||||
IconMusic
|
||||
IconArchives
|
||||
IconFonts
|
||||
IconBinaries
|
||||
IconVideos
|
||||
Icon3DObjects
|
||||
IconHistory
|
||||
IconPreferences
|
||||
|
||||
// storage
|
||||
IconStorage // generic
|
||||
IconMagneticTape
|
||||
IconFloppyDisk
|
||||
IconHardDisk
|
||||
IconSolidStateDrive
|
||||
IconFlashDrive
|
||||
IconMemoryCard
|
||||
IconROMDisk
|
||||
IconRAMDisk
|
||||
IconCD
|
||||
IconDVD
|
||||
|
||||
// network
|
||||
IconNetwork // generic
|
||||
IconLocalNetwork
|
||||
IconInternet
|
||||
IconEthernet
|
||||
IconWireless
|
||||
IconCell
|
||||
IconBluetooth
|
||||
IconRadio
|
||||
|
||||
// devices
|
||||
IconDevice // generic
|
||||
IconRouter
|
||||
IconSwitch
|
||||
IconServer
|
||||
IconDesktop
|
||||
IconLaptop
|
||||
IconTablet
|
||||
IconPhone
|
||||
IconWatch
|
||||
IconCamera
|
||||
|
||||
// peripherals
|
||||
IconPeripheral // generic
|
||||
IconKeyboard
|
||||
IconMouse
|
||||
IconMonitor
|
||||
IconWebcam
|
||||
IconMicrophone
|
||||
IconSpeaker
|
||||
IconPenTablet
|
||||
IconTrackpad
|
||||
IconController
|
||||
|
||||
// i/o
|
||||
IconPort // generic
|
||||
IconEthernetPort
|
||||
IconUSBPort
|
||||
IconParallelPort
|
||||
IconSerialPort
|
||||
IconPS2Port
|
||||
IconDisplayConnector
|
||||
IconCGAPort
|
||||
IconVGAPort
|
||||
IconHDMIPort
|
||||
IconDisplayPort
|
||||
IconInfrared
|
||||
|
||||
// --- Actions --- //
|
||||
|
||||
// files
|
||||
IconOpen
|
||||
IconOpenIn
|
||||
IconSave
|
||||
IconSaveAs
|
||||
IconPrint
|
||||
IconNew
|
||||
IconNewDirectory
|
||||
IconDelete
|
||||
IconRename
|
||||
IconGetInformation
|
||||
IconChangePermissions
|
||||
IconRevert
|
||||
|
||||
// list management
|
||||
IconAdd
|
||||
IconRemove
|
||||
IconAddBookmark
|
||||
IconRemoveBookmark
|
||||
IconAddFavorite
|
||||
IconRemoveFavorite
|
||||
|
||||
// media
|
||||
IconPlay
|
||||
IconPause
|
||||
IconStop
|
||||
IconFastForward
|
||||
IconRewind
|
||||
IconToBeginning
|
||||
IconToEnd
|
||||
IconRecord
|
||||
IconVolumeUp
|
||||
IconVolumeDown
|
||||
IconMute
|
||||
|
||||
// editing
|
||||
IconUndo
|
||||
IconRedo
|
||||
IconCut
|
||||
IconCopy
|
||||
IconPaste
|
||||
IconFind
|
||||
IconReplace
|
||||
IconSelectAll
|
||||
IconSelectNone
|
||||
IconIncrement
|
||||
IconDecrement
|
||||
|
||||
// window management
|
||||
IconClose
|
||||
IconQuit
|
||||
IconIconify
|
||||
IconShade
|
||||
IconMaximize
|
||||
IconFullScreen
|
||||
IconRestore
|
||||
|
||||
// view controls
|
||||
IconExpand
|
||||
IconContract
|
||||
IconBack
|
||||
IconForward
|
||||
IconUp
|
||||
IconDown
|
||||
IconReload
|
||||
IconZoomIn
|
||||
IconZoomOut
|
||||
IconZoomReset
|
||||
IconMove
|
||||
IconResize
|
||||
IconGoTo
|
||||
|
||||
// tools
|
||||
IconTransform
|
||||
IconTranslate
|
||||
IconRotate
|
||||
IconScale
|
||||
IconWarp
|
||||
IconCornerPin
|
||||
IconSelectRectangle
|
||||
IconSelectEllipse
|
||||
IconSelectLasso
|
||||
IconSelectGeometric
|
||||
IconSelectAuto
|
||||
IconCrop
|
||||
IconFill
|
||||
IconGradient
|
||||
IconPencil
|
||||
IconBrush
|
||||
IconEraser
|
||||
IconText
|
||||
IconEyedropper
|
||||
|
||||
// --- Status --- //
|
||||
|
||||
// dialogs
|
||||
IconInformation
|
||||
IconQuestion
|
||||
IconWarning
|
||||
IconError
|
||||
IconCancel
|
||||
IconOkay
|
||||
|
||||
// network
|
||||
IconCellSignal0
|
||||
IconCellSignal1
|
||||
IconCellSignal2
|
||||
IconCellSignal3
|
||||
IconWirelessSignal0
|
||||
IconWirelessSignal1
|
||||
IconWirelessSignal2
|
||||
IconWirelessSignal3
|
||||
|
||||
// power
|
||||
IconBattery0
|
||||
IconBattery1
|
||||
IconBattery2
|
||||
IconBattery3
|
||||
IconBrightness0
|
||||
IconBrightness1
|
||||
IconBrightness2
|
||||
IconBrightness3
|
||||
|
||||
// media
|
||||
IconVolume0
|
||||
IconVolume1
|
||||
IconVolume2
|
||||
IconVolume3
|
||||
)
|
||||
|
||||
// String satisfies the fmt.Stringer interface.
|
||||
func (id Icon) String () string {
|
||||
switch id {
|
||||
case IconFile: return "File"
|
||||
case IconDirectory: return "Directory"
|
||||
case IconDirectoryFull: return "DirectoryFull"
|
||||
case IconDownloads: return "Downloads"
|
||||
case IconPhotos: return "Photos"
|
||||
case IconBooks: return "Books"
|
||||
case IconDocuments: return "Documents"
|
||||
case IconRepositories: return "Repositories"
|
||||
case IconMusic: return "Music"
|
||||
case IconArchives: return "Archives"
|
||||
case IconFonts: return "Fonts"
|
||||
case IconBinaries: return "Binaries"
|
||||
case IconVideos: return "Videos"
|
||||
case Icon3DObjects: return "3DObjects"
|
||||
case IconHistory: return "History"
|
||||
case IconPreferences: return "Preferences"
|
||||
case IconStorage: return "Storage"
|
||||
case IconMagneticTape: return "MagneticTape"
|
||||
case IconFloppyDisk: return "FloppyDisk"
|
||||
case IconHardDisk: return "HardDisk"
|
||||
case IconSolidStateDrive: return "SolidStateDrive"
|
||||
case IconFlashDrive: return "FlashDrive"
|
||||
case IconMemoryCard: return "MemoryCard"
|
||||
case IconROMDisk: return "ROMDisk"
|
||||
case IconRAMDisk: return "RAMDisk"
|
||||
case IconCD: return "CD"
|
||||
case IconDVD: return "DVD"
|
||||
case IconNetwork: return "Network"
|
||||
case IconLocalNetwork: return "LocalNetwork"
|
||||
case IconInternet: return "Internet"
|
||||
case IconEthernet: return "Ethernet"
|
||||
case IconWireless: return "Wireless"
|
||||
case IconCell: return "Cell"
|
||||
case IconBluetooth: return "Bluetooth"
|
||||
case IconRadio: return "Radio"
|
||||
case IconDevice: return "Device"
|
||||
case IconRouter: return "Router"
|
||||
case IconServer: return "Server"
|
||||
case IconDesktop: return "Desktop"
|
||||
case IconLaptop: return "Laptop"
|
||||
case IconTablet: return "Tablet"
|
||||
case IconPhone: return "Phone"
|
||||
case IconWatch: return "Watch"
|
||||
case IconCamera: return "Camera"
|
||||
case IconPeripheral: return "Peripheral"
|
||||
case IconKeyboard: return "Keyboard"
|
||||
case IconMouse: return "Mouse"
|
||||
case IconMonitor: return "Monitor"
|
||||
case IconWebcam: return "Webcam"
|
||||
case IconMicrophone: return "Microphone"
|
||||
case IconSpeaker: return "Speaker"
|
||||
case IconPenTablet: return "PenTablet"
|
||||
case IconTrackpad: return "Trackpad"
|
||||
case IconController: return "Controller"
|
||||
case IconPort: return "Port"
|
||||
case IconEthernetPort: return "EthernetPort"
|
||||
case IconUSBPort: return "USBPort"
|
||||
case IconParallelPort: return "ParallelPort"
|
||||
case IconSerialPort: return "SerialPort"
|
||||
case IconPS2Port: return "PS2Port"
|
||||
case IconDisplayConnector: return "DisplayConnector"
|
||||
case IconCGAPort: return "CGAPort"
|
||||
case IconVGAPort: return "VGAPort"
|
||||
case IconHDMIPort: return "HDMIPort"
|
||||
case IconDisplayPort: return "DisplayPort"
|
||||
case IconInfrared: return "Infrared"
|
||||
case IconOpen: return "Open"
|
||||
case IconOpenIn: return "OpenIn"
|
||||
case IconSave: return "Save"
|
||||
case IconSaveAs: return "SaveAs"
|
||||
case IconPrint: return "Print"
|
||||
case IconNew: return "New"
|
||||
case IconNewDirectory: return "NewDirectory"
|
||||
case IconDelete: return "Delete"
|
||||
case IconRename: return "Rename"
|
||||
case IconGetInformation: return "GetInformation"
|
||||
case IconChangePermissions: return "ChangePermissions"
|
||||
case IconRevert: return "Revert"
|
||||
case IconAdd: return "Add"
|
||||
case IconRemove: return "Remove"
|
||||
case IconAddBookmark: return "AddBookmark"
|
||||
case IconRemoveBookmark: return "RemoveBookmark"
|
||||
case IconAddFavorite: return "AddFavorite"
|
||||
case IconRemoveFavorite: return "RemoveFavorite"
|
||||
case IconPlay: return "Play"
|
||||
case IconPause: return "Pause"
|
||||
case IconStop: return "Stop"
|
||||
case IconFastForward: return "FastForward"
|
||||
case IconRewind: return "Rewind"
|
||||
case IconToBeginning: return "ToBeginning"
|
||||
case IconToEnd: return "ToEnd"
|
||||
case IconRecord: return "Record"
|
||||
case IconVolumeUp: return "VolumeUp"
|
||||
case IconVolumeDown: return "VolumeDown"
|
||||
case IconMute: return "Mute"
|
||||
case IconUndo: return "Undo"
|
||||
case IconRedo: return "Redo"
|
||||
case IconCut: return "Cut"
|
||||
case IconCopy: return "Copy"
|
||||
case IconPaste: return "Paste"
|
||||
case IconFind: return "Find"
|
||||
case IconReplace: return "Replace"
|
||||
case IconSelectAll: return "SelectAll"
|
||||
case IconSelectNone: return "SelectNone"
|
||||
case IconIncrement: return "Increment"
|
||||
case IconDecrement: return "Decrement"
|
||||
case IconClose: return "Close"
|
||||
case IconQuit: return "Quit"
|
||||
case IconIconify: return "Iconify"
|
||||
case IconShade: return "Shade"
|
||||
case IconMaximize: return "Maximize"
|
||||
case IconFullScreen: return "FullScreen"
|
||||
case IconRestore: return "Restore"
|
||||
case IconExpand: return "Expand"
|
||||
case IconContract: return "Contract"
|
||||
case IconBack: return "Back"
|
||||
case IconForward: return "Forward"
|
||||
case IconUp: return "Up"
|
||||
case IconDown: return "Down"
|
||||
case IconReload: return "Reload"
|
||||
case IconZoomIn: return "ZoomIn"
|
||||
case IconZoomOut: return "ZoomOut"
|
||||
case IconZoomReset: return "ZoomReset"
|
||||
case IconMove: return "Move"
|
||||
case IconResize: return "Resize"
|
||||
case IconGoTo: return "GoTo"
|
||||
case IconTransform: return "Transform"
|
||||
case IconTranslate: return "Translate"
|
||||
case IconRotate: return "Rotate"
|
||||
case IconScale: return "Scale"
|
||||
case IconWarp: return "Warp"
|
||||
case IconCornerPin: return "CornerPin"
|
||||
case IconSelectRectangle: return "SelectRectangle"
|
||||
case IconSelectEllipse: return "SelectEllipse"
|
||||
case IconSelectLasso: return "SelectLasso"
|
||||
case IconSelectGeometric: return "SelectGeometric"
|
||||
case IconSelectAuto: return "SelectAuto"
|
||||
case IconCrop: return "Crop"
|
||||
case IconFill: return "Fill"
|
||||
case IconGradient: return "Gradient"
|
||||
case IconPencil: return "Pencil"
|
||||
case IconBrush: return "Brush"
|
||||
case IconEraser: return "Eraser"
|
||||
case IconText: return "Text"
|
||||
case IconEyedropper: return "Eyedropper"
|
||||
case IconInformation: return "Information"
|
||||
case IconQuestion: return "Question"
|
||||
case IconWarning: return "Warning"
|
||||
case IconError: return "Error"
|
||||
case IconCancel: return "Cancel"
|
||||
case IconOkay: return "Okay"
|
||||
case IconCellSignal0: return "CellSignal0"
|
||||
case IconCellSignal1: return "CellSignal1"
|
||||
case IconCellSignal2: return "CellSignal2"
|
||||
case IconCellSignal3: return "CellSignal3"
|
||||
case IconWirelessSignal0: return "WirelessSignal0"
|
||||
case IconWirelessSignal1: return "WirelessSignal1"
|
||||
case IconWirelessSignal2: return "WirelessSignal2"
|
||||
case IconWirelessSignal3: return "WirelessSignal3"
|
||||
case IconBattery0: return "Battery0"
|
||||
case IconBattery1: return "Battery1"
|
||||
case IconBattery2: return "Battery2"
|
||||
case IconBattery3: return "Battery3"
|
||||
case IconBrightness0: return "Brightness0"
|
||||
case IconBrightness1: return "Brightness1"
|
||||
case IconBrightness2: return "Brightness2"
|
||||
case IconBrightness3: return "Brightness3"
|
||||
case IconVolume0: return "Volume0"
|
||||
case IconVolume1: return "Volume1"
|
||||
case IconVolume2: return "Volume2"
|
||||
case IconVolume3: return "Volume3"
|
||||
|
||||
default: return "Unknown"
|
||||
}
|
||||
}
|
||||
|
||||
// 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)
|
||||
}
|
||||
|
||||
// ApplicationIcon describes the icon of the application.
|
||||
type ApplicationIcon tomo.ApplicationDescription
|
||||
|
||||
// Texture returns a texture of the corresponding icon ID.
|
||||
func (icon ApplicationIcon) Texture (size IconSize) canvas.Texture {
|
||||
if current == nil { return nil }
|
||||
return current.ApplicationIcon(icon, size)
|
||||
}
|
|
@ -0,0 +1,112 @@
|
|||
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 is an object that 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
|
||||
|
||||
// ApplicationIcon returns an icon corresponding to an application.
|
||||
ApplicationIcon (ApplicationIcon, 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)
|
||||
}
|
40
tomo.go
40
tomo.go
|
@ -1,21 +1,29 @@
|
|||
package tomo
|
||||
|
||||
import "sync"
|
||||
import "image"
|
||||
import "errors"
|
||||
import "git.tebibyte.media/tomo/tomo/canvas"
|
||||
|
||||
var backendLock sync.Mutex
|
||||
var backend Backend
|
||||
|
||||
// Run initializes a backend, runs the specified callback function, and runs the
|
||||
// event loop in that order. This function blocks until Stop is called, or the
|
||||
// backend experiences a fatal error.
|
||||
func Run (callback func ()) error {
|
||||
loadPlugins()
|
||||
|
||||
if backend != nil {
|
||||
return errors.New("there is already a backend running")
|
||||
}
|
||||
|
||||
back, err := Initialize()
|
||||
if err != nil { return err }
|
||||
|
||||
backendLock.Lock()
|
||||
backend = back
|
||||
backendLock.Unlock()
|
||||
|
||||
callback()
|
||||
return backend.Run()
|
||||
|
@ -30,30 +38,60 @@ func assertBackend () {
|
|||
func Stop () {
|
||||
assertBackend()
|
||||
backend.Stop()
|
||||
|
||||
backendLock.Lock()
|
||||
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()
|
||||
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 {
|
||||
assertBackend()
|
||||
return backend.NewBox()
|
||||
}
|
||||
|
||||
// NewTextBox creates and returns a Box that can display text.
|
||||
func NewTextBox () TextBox {
|
||||
assertBackend()
|
||||
return backend.NewTextBox()
|
||||
}
|
||||
|
||||
// NewCanvasBox creates and returns a Box that can display custom graphics.
|
||||
func NewCanvasBox () CanvasBox {
|
||||
assertBackend()
|
||||
return backend.NewCanvasBox()
|
||||
}
|
||||
|
||||
// NewContainerBox creates and returns a Box that can contain other boxes.
|
||||
func NewContainerBox () ContainerBox {
|
||||
assertBackend()
|
||||
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)
|
||||
}
|
||||
|
|
4
unix.go
4
unix.go
|
@ -6,6 +6,8 @@ import "os"
|
|||
import "strings"
|
||||
import "path/filepath"
|
||||
|
||||
var userDataDir string
|
||||
|
||||
func init () {
|
||||
pathVariable := os.Getenv("TOMO_PLUGIN_PATH")
|
||||
pluginPaths = strings.Split(pathVariable, ":")
|
||||
|
@ -19,4 +21,6 @@ func init () {
|
|||
pluginPaths,
|
||||
filepath.Join(homeDir, ".local/lib/tomo/plugins"))
|
||||
}
|
||||
|
||||
userDataDir = filepath.Join(homeDir, ".local/share")
|
||||
}
|
||||
|
|
Loading…
Reference in New Issue