Initial commit

This commit is contained in:
Sasha Koshka 2023-07-02 02:52:14 -04:00
commit 5e7c666d92
12 changed files with 899 additions and 0 deletions

3
README.md Normal file
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# x
WIP X backend for Tomo.

80
backend.go Normal file
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package x
import "git.tebibyte.media/tomo/tomo"
import "git.tebibyte.media/tomo/xgbkb"
import "github.com/jezek/xgbutil"
import "github.com/jezek/xgb/xproto"
import "github.com/jezek/xgbutil/xevent"
import "github.com/jezek/xgbutil/keybind"
import "github.com/jezek/xgbutil/mousebind"
type Backend struct {
x *xgbutil.XUtil
doChannel chan func()
windows map[xproto.Window] *window
open bool
}
func NewBackend () (tomo.Backend, error) {
backend := &Backend {
doChannel: make(chan func (), 32),
windows: make(map[xproto.Window] *window),
open: true,
}
var err error
backend.x, err = xgbutil.NewConn()
if err != nil { return nil, err }
keybind .Initialize(backend.x)
xgbkb .Initialize(backend.x)
mousebind.Initialize(backend.x)
return backend, nil
}
func (backend *Backend) Run () error {
backend.assert()
pingBefore,
pingAfter,
pingQuit := xevent.MainPing(backend.x)
for {
select {
case <- pingBefore:
<- pingAfter
case callback := <- backend.doChannel:
callback()
case <- pingQuit:
return nil // FIXME: if we exited due to an error say so
}
for _, window := range backend.windows {
window.afterEvent()
}
}
}
func (backend *Backend) Stop () {
backend.assert()
if !backend.open { return }
backend.open = false
toClose := []*window { }
for _, panel := range backend.windows {
toClose = append(toClose, panel)
}
for _, panel := range toClose {
panel.Close()
}
xevent.Quit(backend.x)
backend.x.Conn().Close()
}
func (backend *Backend) Do (callback func ()) {
backend.assert()
backend.doChannel <- callback
}
func (backend *Backend) assert () {
if backend == nil { panic("nil backend") }
}

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box.go Normal file
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package x
import "image"
import "image/color"
import "git.tebibyte.media/tomo/tomo"
import "git.tebibyte.media/tomo/tomo/data"
import "git.tebibyte.media/tomo/tomo/input"
import "git.tebibyte.media/tomo/tomo/event"
import "git.tebibyte.media/tomo/tomo/canvas"
type box struct {
backend *Backend
window *window
bounds image.Rectangle
minSize image.Point
padding tomo.Inset
border []tomo.Border
color color.Color
dndData data.Data
dndAccept []data.Mime
focused bool
focusable bool
drawClean bool
layoutClean bool
drawer canvas.Drawer
on struct {
focusEnter event.FuncBroadcaster
focusLeave event.FuncBroadcaster
dndEnter event.FuncBroadcaster
dndLeave event.FuncBroadcaster
dndDrop event.Broadcaster[func (data.Data)]
mouseEnter event.FuncBroadcaster
mouseLeave event.FuncBroadcaster
mouseMove event.FuncBroadcaster
mouseDown event.Broadcaster[func (input.Button)]
mouseUp event.Broadcaster[func (input.Button)]
scroll event.Broadcaster[func (float64, float64)]
keyDown event.Broadcaster[func (input.Key, bool)]
keyUp event.Broadcaster[func (input.Key, bool)]
}
}
func (backend *Backend) NewBox() tomo.Box {
box := &box {
backend: backend,
}
box.drawer = box
return box
}
func (this *box) Box () tomo.Box {
return this
}
func (this *box) Window () tomo.Window {
return this.window
}
func (this *box) Bounds () image.Rectangle {
return this.bounds
}
func (this *box) InnerBounds () image.Rectangle {
innerBounds := this.padding.Apply(this.bounds)
for _, border := range this.border {
innerBounds = border.Width.Apply(innerBounds)
}
return innerBounds
}
func (this *box) SetBounds (bounds image.Rectangle) {
if this.bounds == bounds { return }
this.bounds = bounds
this.invalidateLayout()
}
func (this *box) SetColor (c color.Color) {
if this.color == c { return }
this.color = c
this.invalidateDraw()
}
func (this *box) SetBorder (border ...tomo.Border) {
this.border = border
this.invalidateLayout()
}
func (this *box) SetMinimumSize (width, height int) {
this.minSize = image.Pt(width, height)
if this.bounds.Dx() < width || this.bounds.Dy() < height {
this.invalidateLayout()
}
}
func (this *box) SetPadding (padding tomo.Inset) {
if this.padding == padding { return }
this.padding = padding
this.invalidateLayout()
}
func (this *box) SetDNDData (dat data.Data) {
this.dndData = dat
}
func (this *box) SetDNDAccept (types ...data.Mime) {
this.dndAccept = types
}
func (this *box) SetFocused (focused bool) {
if this.Focused () && !focused {
this.window.focus(nil)
} else if !this.Focused() && focused {
this.window.focus(this)
}
}
func (this *box) SetFocusable (focusable bool) {
if this.focusable == focusable { return }
this.focusable = focusable
if !focusable {
this.SetFocused(false)
}
}
func (this *box) Focused () bool {
return this == this.window.focused
}
func (this *box) Modifiers () input.Modifiers {
return this.window.modifiers
}
func (this *box) MousePosition () image.Point {
return this.window.mousePosition
}
// ----- event handlers ----------------------------------------------------- //
func (this *box) OnFocusEnter (callback func()) event.Cookie {
return this.on.focusEnter.Connect(callback)
}
func (this *box) OnFocusLeave (callback func()) event.Cookie {
return this.on.focusLeave.Connect(callback)
}
func (this *box) OnDNDEnter (callback func()) event.Cookie {
return this.on.dndEnter.Connect(callback)
}
func (this *box) OnDNDLeave (callback func()) event.Cookie {
return this.on.dndLeave.Connect(callback)
}
func (this *box) OnDNDDrop (callback func(data.Data)) event.Cookie {
return this.on.dndDrop.Connect(callback)
}
func (this *box) OnMouseEnter (callback func()) event.Cookie {
return this.on.mouseEnter.Connect(callback)
}
func (this *box) OnMouseLeave (callback func()) event.Cookie {
return this.on.mouseLeave.Connect(callback)
}
func (this *box) OnMouseMove (callback func()) event.Cookie {
return this.on.mouseMove.Connect(callback)
}
func (this *box) OnMouseDown (callback func(input.Button)) event.Cookie {
return this.on.mouseDown.Connect(callback)
}
func (this *box) OnMouseUp (callback func(input.Button)) event.Cookie {
return this.on.mouseUp.Connect(callback)
}
func (this *box) OnScroll (callback func(deltaX, deltaY float64)) event.Cookie {
return this.on.scroll.Connect(callback)
}
func (this *box) OnKeyDown (callback func(key input.Key, numberPad bool)) event.Cookie {
return this.on.keyDown.Connect(callback)
}
func (this *box) OnKeyUp (callback func(key input.Key, numberPad bool)) event.Cookie {
return this.on.keyUp.Connect(callback)
}
// -------------------------------------------------------------------------- //
func (this *box) Draw (can canvas.Canvas) {
pen := can.Pen()
bounds := this.bounds
for _, border := range this.border {
pen.Fill(border.Color[tomo.SideTop])
pen.Rectangle(image.Rect (
bounds.Min.X,
bounds.Min.Y,
bounds.Max.X,
bounds.Min.Y + border.Width[tomo.SideTop]))
pen.Fill(border.Color[tomo.SideBottom])
pen.Rectangle(image.Rect (
bounds.Min.X,
bounds.Max.Y - border.Width[tomo.SideBottom],
bounds.Max.X,
bounds.Max.Y))
pen.Fill(border.Color[tomo.SideLeft])
pen.Rectangle(image.Rect (
bounds.Min.X,
bounds.Min.Y + border.Width[tomo.SideTop],
bounds.Min.X + border.Width[tomo.SideLeft],
bounds.Max.Y - border.Width[tomo.SideBottom]))
pen.Fill(border.Color[tomo.SideRight])
pen.Rectangle(image.Rect (
bounds.Max.X - border.Width[tomo.SideRight],
bounds.Min.Y + border.Width[tomo.SideTop],
bounds.Max.X,
bounds.Max.Y - border.Width[tomo.SideBottom]))
bounds = border.Width.Apply(bounds)
}
pen.Fill(this.color)
pen.Rectangle(bounds)
}
func (this *box) invalidateDraw () {
this.drawClean = false
}
func (this *box) invalidateLayout () {
this.invalidateDraw()
this.layoutClean = false
}

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canvas/canvas.go Normal file
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package xcanvas
import "image"
import "image/color"
import "github.com/jezek/xgbutil"
import "git.tebibyte.media/tomo/ggfx"
import "github.com/jezek/xgbutil/xgraphics"
import "git.tebibyte.media/tomo/tomo/canvas"
// Canvas satisfies the canvas.Canvas interface. It draws to an xgraphics.Image.
type Canvas struct {
*xgraphics.Image
}
// New creates a new canvas from a bounding rectangle.
func New (x *xgbutil.XUtil, bounds image.Rectangle) Canvas {
return Canvas { xgraphics.New(x, bounds) }
}
// NewFrom creates a new canvas from an existing xgraphics.Image.
func NewFrom (image *xgraphics.Image) Canvas {
return Canvas { image }
}
// Pen returns a new drawing context.
func (this Canvas) Pen () canvas.Pen {
return pen {
image: this.Image,
gfx: ggfx.Image[uint8] {
Pix: this.Image.Pix,
Stride: this.Image.Stride,
Bounds: this.Image.Rect,
Width: 4,
},
}
}
// Clip returns a sub-canvas of this canvas.
func (this Canvas) Clip (bounds image.Rectangle) Canvas {
return Canvas { this.Image.SubImage(bounds).(*xgraphics.Image) }
}
// TODO: we need to implement:
// - cap
// - joint
// - align
type pen struct {
image *xgraphics.Image
gfx ggfx.Image[uint8]
closed bool
endCap canvas.Cap
joint canvas.Joint
weight int
align canvas.StrokeAlign
stroke [4]uint8
fill [4]uint8
}
func (this pen) Rectangle (bounds image.Rectangle) {
if this.weight == 0 {
this.gfx.FillRectangle(this.fill[:], bounds)
} else {
this.gfx.StrokeRectangle(this.stroke[:], this.weight, bounds)
}
}
func (this pen) Path (points ...image.Point) {
if this.weight == 0 {
this.gfx.FillPolygon(this.fill[:], points...)
} else if this.closed {
this.gfx.StrokePolygon(this.stroke[:], this.weight, points...)
} else {
this.gfx.PolyLine(this.stroke[:], this.weight, points...)
}
}
func (this pen) Closed (closed bool) { this.closed = closed }
func (this pen) Cap (endCap canvas.Cap) { this.endCap = endCap }
func (this pen) Joint (joint canvas.Joint) { this.joint = joint }
func (this pen) StrokeWeight (weight int) { this.weight = weight }
func (this pen) StrokeAlign (align canvas.StrokeAlign) { this.align = align }
func (this pen) Stroke (stroke color.Color) { this.stroke = convertColor(stroke) }
func (this pen) Fill (fill color.Color) { this.fill = convertColor(fill) }
func convertColor (c color.Color) [4]uint8 {
r, g, b, a := c.RGBA()
return [4]uint8 {
uint8(b >> 8),
uint8(g >> 8),
uint8(a >> 8),
uint8(r >> 8),
}
}

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canvasbox.go Normal file
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package x
import "git.tebibyte.media/tomo/tomo"
import "git.tebibyte.media/tomo/tomo/canvas"
type canvasBox struct {
*box
}
func (backend *Backend) NewCanvasBox () tomo.CanvasBox {
return &canvasBox {
box: backend.NewBox().(*box),
}
}
func (this *canvasBox) Box () tomo.Box {
return this
}
func (this *canvasBox) SetDrawer (drawer canvas.Drawer) {
this.drawer = drawer
this.invalidateDraw()
}
func (this *canvasBox) Invalidate () {
this.invalidateDraw()
}

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containerbox.go Normal file
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package x
import "git.tebibyte.media/tomo/tomo"
func (backend *Backend) NewContainerBox() tomo.ContainerBox {
// TODO
return nil
}

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go.mod Normal file
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module git.tebibyte.media/tomo/x
go 1.20
require (
git.tebibyte.media/tomo/ggfx v0.3.0
git.tebibyte.media/tomo/tomo v0.7.3
git.tebibyte.media/tomo/xgbkb v1.0.1
github.com/jezek/xgb v1.1.0
github.com/jezek/xgbutil v0.0.0-20230603163917-04188eb39cf0
)
require (
github.com/BurntSushi/freetype-go v0.0.0-20160129220410-b763ddbfe298 // indirect
github.com/BurntSushi/graphics-go v0.0.0-20160129215708-b43f31a4a966 // indirect
golang.org/x/image v0.8.0 // indirect
)

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go.sum Normal file
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git.tebibyte.media/sashakoshka/xgbkb v1.0.0/go.mod h1:pNcE6TRO93vHd6q42SdwLSTTj25L0Yzggz7yLe0JV6Q=
git.tebibyte.media/tomo/ggfx v0.2.0 h1:TSWfNQgnnHewwHiGC3VPFssdOIYCfgqCcOiPX4Sgv00=
git.tebibyte.media/tomo/ggfx v0.2.0/go.mod h1:zPoz8BdVQyG2KhEmeGFQBK66V71i6Kj8oVFbrZaCwRA=
git.tebibyte.media/tomo/ggfx v0.3.0 h1:h+RfairZTt4jT76KwmJN8OcdU7Ew0vFRqMZFqz3iHaE=
git.tebibyte.media/tomo/ggfx v0.3.0/go.mod h1:zPoz8BdVQyG2KhEmeGFQBK66V71i6Kj8oVFbrZaCwRA=
git.tebibyte.media/tomo/tomo v0.4.0 h1:nraUtsmYLSe8BZOolmeBuD+aaMk4duSxI84RqnzflCs=
git.tebibyte.media/tomo/tomo v0.4.0/go.mod h1:lTwjpiHbP4UN/kFw+6FwhG600B+PMKVtMOr7wpd5IUY=
git.tebibyte.media/tomo/tomo v0.5.0 h1:bfHNExPewlt+n7nq8LvNiAbemqSllrCY/tAI08r8sAo=
git.tebibyte.media/tomo/tomo v0.5.0/go.mod h1:lTwjpiHbP4UN/kFw+6FwhG600B+PMKVtMOr7wpd5IUY=
git.tebibyte.media/tomo/tomo v0.5.1 h1:APOTY+YSV8JJwNmJsKFYzBYLPUy3DqNr49rrSspOKZ8=
git.tebibyte.media/tomo/tomo v0.5.1/go.mod h1:lTwjpiHbP4UN/kFw+6FwhG600B+PMKVtMOr7wpd5IUY=
git.tebibyte.media/tomo/tomo v0.6.0 h1:/gjY6neXEqyKQ2Ye05mZi3yIOvsRVyIKSddvCySGN2Y=
git.tebibyte.media/tomo/tomo v0.6.0/go.mod h1:lTwjpiHbP4UN/kFw+6FwhG600B+PMKVtMOr7wpd5IUY=
git.tebibyte.media/tomo/tomo v0.6.1 h1:XdtHfF2xhz9pZXqyrwSsPaore/8PHVqFrnT4NwlBOhY=
git.tebibyte.media/tomo/tomo v0.6.1/go.mod h1:lTwjpiHbP4UN/kFw+6FwhG600B+PMKVtMOr7wpd5IUY=
git.tebibyte.media/tomo/tomo v0.7.0 h1:dUYBB/gZzmkiKR8Cq/nmEQGwMqVE01CnQFtvjmInif0=
git.tebibyte.media/tomo/tomo v0.7.0/go.mod h1:lTwjpiHbP4UN/kFw+6FwhG600B+PMKVtMOr7wpd5IUY=
git.tebibyte.media/tomo/tomo v0.7.1 h1:CHOBGel7Acp88cVW+5SEIx41cRdwuuP/niSSp9/CRRg=
git.tebibyte.media/tomo/tomo v0.7.1/go.mod h1:lTwjpiHbP4UN/kFw+6FwhG600B+PMKVtMOr7wpd5IUY=
git.tebibyte.media/tomo/tomo v0.7.2 h1:15dMJm4Sm339b23o9RZSq87u99SaF2q+b5CRB5P58fA=
git.tebibyte.media/tomo/tomo v0.7.2/go.mod h1:lTwjpiHbP4UN/kFw+6FwhG600B+PMKVtMOr7wpd5IUY=
git.tebibyte.media/tomo/tomo v0.7.3 h1:eHwuYKe+0nLWoEfPZid8njirxmWY3dFmdY+PsPp1RN0=
git.tebibyte.media/tomo/tomo v0.7.3/go.mod h1:lTwjpiHbP4UN/kFw+6FwhG600B+PMKVtMOr7wpd5IUY=
git.tebibyte.media/tomo/xgbkb v1.0.1 h1:b3HDUopjdQp1MZrb5Vpil4bOtk3NnNXtfQW27Blw2kE=
git.tebibyte.media/tomo/xgbkb v1.0.1/go.mod h1:P5Du0yo5hUsojchW08t+Mds0XPIJXwMi733ZfklzjRw=
github.com/BurntSushi/freetype-go v0.0.0-20160129220410-b763ddbfe298 h1:1qlsVAQJXZHsaM8b6OLVo6muQUQd4CwkH/D3fnnbHXA=
github.com/BurntSushi/freetype-go v0.0.0-20160129220410-b763ddbfe298/go.mod h1:D+QujdIlUNfa0igpNMk6UIvlb6C252URs4yupRUV4lQ=
github.com/BurntSushi/graphics-go v0.0.0-20160129215708-b43f31a4a966 h1:lTG4HQym5oPKjL7nGs+csTgiDna685ZXjxijkne828g=
github.com/BurntSushi/graphics-go v0.0.0-20160129215708-b43f31a4a966/go.mod h1:Mid70uvE93zn9wgF92A/r5ixgnvX8Lh68fxp9KQBaI0=
github.com/jezek/xgb v1.1.0 h1:wnpxJzP1+rkbGclEkmwpVFQWpuE2PUGNUzP8SbfFobk=
github.com/jezek/xgb v1.1.0/go.mod h1:nrhwO0FX/enq75I7Y7G8iN1ubpSGZEiA3v9e9GyRFlk=
github.com/jezek/xgbutil v0.0.0-20230603163917-04188eb39cf0 h1:Pf/0BAbppEOq4azPH6fnvUX2dycAwZdGkdxFn25j44c=
github.com/jezek/xgbutil v0.0.0-20230603163917-04188eb39cf0/go.mod h1:AHecLyFNy6AN9f/+0AH/h1MI7X1+JL5bmCz4XlVZk7Y=
github.com/yuin/goldmark v1.4.13/go.mod h1:6yULJ656Px+3vBD8DxQVa3kxgyrAnzto9xy5taEt/CY=
golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
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/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=
golang.org/x/net v0.0.0-20210226172049-e18ecbb05110/go.mod h1:m0MpNAwzfU5UDzcl9v0D8zg8gWTRqZa9RBIspLL5mdg=
golang.org/x/net v0.0.0-20220722155237-a158d28d115b/go.mod h1:XRhObCWvk6IyKnWLug+ECip1KBveYUHfp+8e9klMJ9c=
golang.org/x/net v0.6.0/go.mod h1:2Tu9+aMcznHK/AK1HMvgo6xiTLG5rD5rZLDS+rp2Bjs=
golang.org/x/sync v0.0.0-20190423024810-112230192c58/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
golang.org/x/sync v0.0.0-20220722155255-886fb9371eb4/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
golang.org/x/sync v0.1.0/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
golang.org/x/sys v0.0.0-20201119102817-f84b799fce68/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/sys v0.0.0-20210615035016-665e8c7367d1/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
golang.org/x/sys v0.0.0-20220520151302-bc2c85ada10a/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
golang.org/x/sys v0.0.0-20220722155257-8c9f86f7a55f/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
golang.org/x/sys v0.5.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo=
golang.org/x/term v0.0.0-20210927222741-03fcf44c2211/go.mod h1:jbD1KX2456YbFQfuXm/mYQcufACuNUgVhRMnK/tPxf8=
golang.org/x/term v0.5.0/go.mod h1:jMB1sMXY+tzblOD4FWmEbocvup2/aLOaQEp7JmGp78k=
golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
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/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=
golang.org/x/tools v0.6.0/go.mod h1:Xwgl3UAJ/d3gWutnCtw505GrjyAbvKui8lOU390QaIU=
golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=

20
system.go Normal file
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package x
import "git.tebibyte.media/tomo/tomo"
type anyBox interface {
tomo.Box
invalidateDraw ()
invalidateLayout ()
}
func (window *window) SetRoot (root tomo.Object) {
}
func (window *window) focus (bx anyBox) {
if window.focused == bx { return }
window.focused.invalidateDraw()
window.focused = bx
bx.invalidateDraw()
}

8
textbox.go Normal file
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package x
import "git.tebibyte.media/tomo/tomo"
func (backend *Backend) NewTextBox() tomo.TextBox {
// TODO
return nil
}

329
window.go Normal file
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package x
import "image"
// import "errors"
import "git.tebibyte.media/tomo/tomo"
import "git.tebibyte.media/tomo/tomo/data"
import "git.tebibyte.media/tomo/tomo/input"
import "git.tebibyte.media/tomo/tomo/event"
import "github.com/jezek/xgb/xproto"
import "github.com/jezek/xgbutil/ewmh"
import "github.com/jezek/xgbutil/icccm"
// import "github.com/jezek/xgbutil/xprop"
import "github.com/jezek/xgbutil/xevent"
import "github.com/jezek/xgbutil/xwindow"
import "github.com/jezek/xgbutil/keybind"
import "github.com/jezek/xgbutil/mousebind"
import "github.com/jezek/xgbutil/xgraphics"
type mainWindow struct { *window }
type window struct {
backend *Backend
xWindow *xwindow.Window
xCanvas *xgraphics.Image
title string
modalParent *window
hasModal bool
shy bool
metrics struct {
bounds image.Rectangle
}
modifiers input.Modifiers
mousePosition image.Point
onClose event.FuncBroadcaster
root anyBox
focused anyBox
}
func (backend *Backend) NewWindow (
bounds image.Rectangle,
) (
output tomo.MainWindow,
err error,
) {
if backend == nil { panic("nil backend") }
window, err := backend.newWindow(bounds, false)
output = mainWindow { window: window }
return output, err
}
func (backend *Backend) newWindow (
bounds image.Rectangle,
override bool,
) (
output *window,
err error,
) {
if bounds.Dx() == 0 { bounds.Max.X = bounds.Min.X + 8 }
if bounds.Dy() == 0 { bounds.Max.Y = bounds.Min.Y + 8 }
window := &window { backend: backend }
window.xWindow, err = xwindow.Generate(backend.x)
if err != nil { return }
if override {
err = window.xWindow.CreateChecked (
backend.x.RootWin(),
bounds.Min.X, bounds.Min.Y, bounds.Dx(), bounds.Dy(),
xproto.CwOverrideRedirect, 1)
} else {
err = window.xWindow.CreateChecked (
backend.x.RootWin(),
bounds.Min.X, bounds.Min.Y, bounds.Dx(), bounds.Dy(), 0)
}
if err != nil { return }
err = window.xWindow.Listen (
xproto.EventMaskExposure,
xproto.EventMaskStructureNotify,
xproto.EventMaskPropertyChange,
xproto.EventMaskPointerMotion,
xproto.EventMaskKeyPress,
xproto.EventMaskKeyRelease,
xproto.EventMaskButtonPress,
xproto.EventMaskButtonRelease)
if err != nil { return }
window.xWindow.WMGracefulClose (func (xWindow *xwindow.Window) {
window.Close()
})
// xevent.ExposeFun(window.handleExpose).
// Connect(backend.x, window.xWindow.Id)
// xevent.ConfigureNotifyFun(window.handleConfigureNotify).
// Connect(backend.x, window.xWindow.Id)
// xevent.KeyPressFun(window.handleKeyPress).
// Connect(backend.x, window.xWindow.Id)
// xevent.KeyReleaseFun(window.handleKeyRelease).
// Connect(backend.x, window.xWindow.Id)
// xevent.ButtonPressFun(window.handleButtonPress).
// Connect(backend.x, window.xWindow.Id)
// xevent.ButtonReleaseFun(window.handleButtonRelease).
// Connect(backend.x, window.xWindow.Id)
// xevent.MotionNotifyFun(window.handleMotionNotify).
// Connect(backend.x, window.xWindow.Id)
// xevent.SelectionNotifyFun(window.handleSelectionNotify).
// Connect(backend.x, window.xWindow.Id)
// xevent.PropertyNotifyFun(window.handlePropertyNotify).
// Connect(backend.x, window.xWindow.Id)
// xevent.SelectionClearFun(window.handleSelectionClear).
// Connect(backend.x, window.xWindow.Id)
// xevent.SelectionRequestFun(window.handleSelectionRequest).
// Connect(backend.x, window.xWindow.Id)
window.metrics.bounds = bounds
window.setMinimumSize(8, 8)
// window.reallocateCanvas()
backend.windows[window.xWindow.Id] = window
output = window
return
}
func (window *window) SetTitle (title string) {
window.title = title
ewmh .WmNameSet (window.backend.x, window.xWindow.Id, title)
icccm.WmNameSet (window.backend.x, window.xWindow.Id, title)
icccm.WmIconNameSet (window.backend.x, window.xWindow.Id, title)
}
func (window *window) SetIcon (sizes []image.Image) {
wmIcons := []ewmh.WmIcon { }
for _, icon := range sizes {
width := icon.Bounds().Max.X
height := icon.Bounds().Max.Y
wmIcon := ewmh.WmIcon {
Width: uint(width),
Height: uint(height),
Data: make([]uint, width * height),
}
// manually convert image data beacuse of course we have to do
// this
index := 0
for y := 0; y < height; y ++ {
for x := 0; x < width; x ++ {
r, g, b, a := icon.At(x, y).RGBA()
r >>= 8
g >>= 8
b >>= 8
a >>= 8
wmIcon.Data[index] =
(uint(a) << 24) |
(uint(r) << 16) |
(uint(g) << 8) |
(uint(b) << 0)
index ++
}}
wmIcons = append(wmIcons, wmIcon)
}
ewmh.WmIconSet (
window.backend.x,
window.xWindow.Id,
wmIcons)
}
func (window *window) NewMenu (bounds image.Rectangle) (tomo.Window, error) {
menu, err := window.backend.newWindow (
bounds.Add(window.metrics.bounds.Min), true)
menu.shy = true
icccm.WmTransientForSet (
window.backend.x,
menu.xWindow.Id,
window.xWindow.Id)
menu.setType("POPUP_MENU")
// menu.inheritProperties(window)
return menu, err
}
func (window *window) NewModal (bounds image.Rectangle) (tomo.Window, error) {
modal, err := window.backend.newWindow (
bounds.Add(window.metrics.bounds.Min), false)
icccm.WmTransientForSet (
window.backend.x,
modal.xWindow.Id,
window.xWindow.Id)
ewmh.WmStateSet (
window.backend.x,
modal.xWindow.Id,
[]string { "_NET_WM_STATE_MODAL" })
modal.modalParent = window
window.hasModal = true
// modal.inheritProperties(window)
return modal, err
}
func (window mainWindow) NewChild (bounds image.Rectangle) (tomo.Window, error) {
child, err := window.backend.newWindow (
bounds.Add(window.metrics.bounds.Min), false)
if err != nil { return nil, err }
child.setClientLeader(window.window)
window.setClientLeader(window.window)
icccm.WmTransientForSet (
window.backend.x,
window.xWindow.Id,
window.xWindow.Id)
window.setType("UTILITY")
// window.inheritProperties(window.window)
return window, err
}
func (window *window) Widget () (tomo.Window, error) {
// TODO
return nil, nil
}
func (window *window) Copy (data.Data) {
// TODO
}
func (window *window) Paste (callback func (data.Data, error), accept ...data.Mime) {
// TODO
}
func (window *window) Show () {
// if window.child == nil {
// window.xCanvas.For (func (x, y int) xgraphics.BGRA {
// return xgraphics.BGRA { }
// })
//
// window.pushRegion(window.xCanvas.Bounds())
// }
window.xWindow.Map()
if window.shy { window.grabInput() }
}
func (window *window) Hide () {
window.xWindow.Unmap()
if window.shy { window.ungrabInput() }
}
func (window *window) Close () {
xevent .Detach(window.backend.x, window.xWindow.Id)
keybind .Detach(window.backend.x, window.xWindow.Id)
mousebind.Detach(window.backend.x, window.xWindow.Id)
window.onClose.Broadcast()
if window.modalParent != nil {
// we are a modal dialog, so unlock the parent
window.modalParent.hasModal = false
}
window.Hide()
// window.Adopt(nil)
delete(window.backend.windows, window.xWindow.Id)
window.xWindow.Destroy()
}
func (window *window) OnClose (callback func ()) event.Cookie {
return window.onClose.Connect(callback)
}
func (window *window) grabInput () {
keybind.GrabKeyboard(window.backend.x, window.xWindow.Id)
mousebind.GrabPointer (
window.backend.x,
window.xWindow.Id,
window.backend.x.RootWin(), 0)
}
func (window *window) ungrabInput () {
keybind.UngrabKeyboard(window.backend.x)
mousebind.UngrabPointer(window.backend.x)
}
func (window *window) setType (ty string) error {
return ewmh.WmWindowTypeSet (
window.backend.x,
window.xWindow.Id,
[]string { "_NET_WM_WINDOW_TYPE_" + ty })
}
func (window *window) setClientLeader (leader *window) error {
hints, _ := icccm.WmHintsGet(window.backend.x, window.xWindow.Id)
if hints == nil {
hints = &icccm.Hints { }
}
hints.Flags |= icccm.HintWindowGroup
hints.WindowGroup = leader.xWindow.Id
return icccm.WmHintsSet (
window.backend.x,
window.xWindow.Id,
hints)
}
func (window *window) setMinimumSize (width, height int) {
if width < 8 { width = 8 }
if height < 8 { height = 8 }
icccm.WmNormalHintsSet (
window.backend.x,
window.xWindow.Id,
&icccm.NormalHints {
Flags: icccm.SizeHintPMinSize,
MinWidth: uint(width),
MinHeight: uint(height),
})
newWidth := window.metrics.bounds.Dx()
newHeight := window.metrics.bounds.Dy()
if newWidth < width { newWidth = width }
if newHeight < height { newHeight = height }
if newWidth != window.metrics.bounds.Dx() ||
newHeight != window.metrics.bounds.Dy() {
window.xWindow.Resize(newWidth, newHeight)
}
}

17
x/plugin.go Normal file
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// Plugin x provides the X11 backend as a plugin.
package main
import "git.tebibyte.media/tomo/x"
import "git.tebibyte.media/tomo/tomo"
func init () {
tomo.Register(x.NewBackend)
}
func Name () string {
return "X"
}
func Description () string {
return "Provides an X11 backend."
}