本文整理匯總了Golang中github.com/nelsam/gxui.Canvas類的典型用法代碼示例。如果您正苦於以下問題：Golang Canvas類的具體用法？Golang Canvas怎麽用？Golang Canvas使用的例子？那麽, 這裏精選的類代碼示例或許可以為您提供幫助。
在下文中一共展示了Canvas類的15個代碼示例，這些例子默認根據受歡迎程度排序。您可以為喜歡或者感覺有用的代碼點讚，您的評價將有助於係統推薦出更棒的Golang代碼示例。
示例1: Paint
// parts.DrawPaint overrides
func (b *SplitterBar) Paint(c gxui.Canvas) {
r := b.outer.Size().Rect()
c.DrawRect(r, gxui.CreateBrush(b.backgroundColor))
if b.foregroundColor != b.backgroundColor {
c.DrawRect(r.ContractI(1), gxui.CreateBrush(b.foregroundColor))
}
}示例2: Paint
func (d *treeButton) Paint(canvas gxui.Canvas) {
style := d.Style()
rect := d.Size().Rect()
poly := gxui.Polygon{
{Position: math.Point{
X: rect.Min.X,
Y: rect.Max.Y,
}},
{Position: math.Point{
X: rect.Min.X,
Y: rect.Min.Y,
}},
{Position: math.Point{
X: rect.Max.X,
Y: rect.Min.Y,
}},
{Position: math.Point{
X: rect.Max.X,
Y: rect.Max.Y,
}},
}
canvas.DrawPolygon(poly, gxui.TransparentPen, style.Brush)
d.PaintChildren.Paint(canvas)
}示例3: drawMoon
func drawMoon(canvas gxui.Canvas, center math.Point, radius float32) {
c := 40
p := make(gxui.Polygon, c*2)
for i := 0; i < c; i++ {
frac := float32(i) / float32(c)
α := math.Lerpf(math.Pi*1.2, math.Pi*-0.2, frac)
p[i] = gxui.PolygonVertex{
Position: math.Point{
X: center.X + int(radius*math.Sinf(α)),
Y: center.Y + int(radius*math.Cosf(α)),
},
RoundedRadius: 0,
}
}
for i := 0; i < c; i++ {
frac := float32(i) / float32(c)
α := math.Lerpf(math.Pi*-0.2, math.Pi*1.2, frac)
r := math.Lerpf(radius, radius*0.5, math.Sinf(frac*math.Pi))
p[i+c] = gxui.PolygonVertex{
Position: math.Point{
X: center.X + int(r*math.Sinf(α)),
Y: center.Y + int(r*math.Cosf(α)),
},
RoundedRadius: 0,
}
}
canvas.DrawPolygon(p, gxui.CreatePen(3, gxui.Gray80), gxui.CreateBrush(gxui.Gray40))
}示例4: Paint
// mixin.List overrides
func (l *DropDownList) Paint(c gxui.Canvas) {
l.DropDownList.Paint(c)
if l.HasFocus() || l.ListShowing() {
r := l.Size().Rect().ContractI(1)
c.DrawRoundedRect(r, 3.0, 3.0, 3.0, 3.0, l.theme.FocusedStyle.Pen, l.theme.FocusedStyle.Brush)
}
}示例5: Paint
func (b *menuButton) Paint(canvas gxui.Canvas) {
style := b.Style()
if l := b.Label(); l != nil {
l.SetColor(style.FontColor)
}
rect := b.Size().Rect()
poly := gxui.Polygon{
{Position: math.Point{
X: rect.Min.X,
Y: rect.Max.Y,
}},
{Position: math.Point{
X: rect.Min.X,
Y: rect.Min.Y,
}},
{Position: math.Point{
X: rect.Max.X,
Y: rect.Min.Y,
}},
{Position: math.Point{
X: rect.Max.X,
Y: rect.Max.Y,
}},
}
canvas.DrawPolygon(poly, gxui.TransparentPen, style.Brush)
b.PaintChildren.Paint(canvas)
canvas.DrawLines(poly, style.Pen)
}示例6: Paint
// mixins.CodeEditor overrides
func (t *CodeEditor) Paint(c gxui.Canvas) {
t.CodeEditor.Paint(c)
if t.HasFocus() {
r := t.Size().Rect()
c.DrawRoundedRect(r, 3, 3, 3, 3, t.theme.FocusedStyle.Pen, t.theme.FocusedStyle.Brush)
}
}示例7: Paint
// mixins.CodeEditor overrides
func (e *editor) Paint(c gxui.Canvas) {
e.CodeEditor.Paint(c)
if e.HasFocus() {
r := e.Size().Rect()
c.DrawRoundedRect(r, 3, 3, 3, 3, e.theme.FocusedStyle.Pen, e.theme.FocusedStyle.Brush)
}
}示例8: PaintProgress
func (b *ProgressBar) PaintProgress(c gxui.Canvas, r math.Rect, frac float32) {
r.Max.X = math.Lerp(r.Min.X, r.Max.X, frac)
c.DrawRect(r, gxui.CreateBrush(gxui.Gray50))
c.Push()
c.AddClip(r)
c.DrawCanvas(b.chevrons, math.Point{X: b.scroll})
c.Pop()
}示例9: Paint
func (p *PanelHolder) Paint(c gxui.Canvas) {
panel := p.SelectedPanel()
if panel != nil {
bounds := p.Children().Find(panel).Bounds()
c.DrawRoundedRect(bounds, 0.0, 0.0, 3.0, 3.0, p.theme.PanelBackgroundStyle.Pen, p.theme.PanelBackgroundStyle.Brush)
}
p.PanelHolder.Paint(c)
}示例10: Paint
// mixins.TextBox overrides
func (t *TextBox) Paint(c gxui.Canvas) {
t.TextBox.Paint(c)
if t.HasFocus() {
r := t.Size().Rect()
s := t.theme.FocusedStyle
c.DrawRoundedRect(r, 3, 3, 3, 3, s.Pen, s.Brush)
}
}示例11: Paint
func (f *FSLocator) Paint(c gxui.Canvas) {
f.LinearLayout.Paint(c)
if f.HasFocus() {
r := f.Size().Rect()
s := f.theme.FocusedStyle
c.DrawRoundedRect(r, 3, 3, 3, 3, s.Pen, s.Brush)
}
}示例12: Paint
func (i *Image) Paint(c gxui.Canvas) {
r := i.outer.Size().Rect()
i.PaintBackground(c, r)
switch {
case i.texture != nil:
c.DrawTexture(i.texture, i.calculateDrawRect())
case i.canvas != nil:
c.DrawCanvas(i.canvas, math.ZeroPoint)
}
i.PaintBorder(c, r)
}示例13: SetCanvas
func (i *Image) SetCanvas(canvas gxui.Canvas) {
if !canvas.IsComplete() {
panic("SetCanvas() called with an incomplete canvas")
}
if i.canvas != canvas {
i.canvas = canvas
i.texture = nil
i.outer.Relayout()
}
}示例14: PaintText
func (t *DefaultTextBoxLine) PaintText(c gxui.Canvas) {
runes := []rune(t.textbox.controller.Line(t.lineIndex))
f := t.textbox.font
offsets := f.Layout(&gxui.TextBlock{
Runes: runes,
AlignRect: t.Size().Rect().OffsetX(t.caretWidth),
H: gxui.AlignLeft,
V: gxui.AlignBottom,
})
for i, offset := range offsets {
offsets[i] = offset.AddX(-t.offset)
}
c.DrawRunes(f, runes, offsets, t.textbox.textColor)
}示例15: PaintBorders
func (l *CodeEditorLine) PaintBorders(c gxui.Canvas, info CodeEditorLinePaintInfo) {
start, _ := info.LineSpan.Span()
offsets := info.GlyphOffsets
for _, layer := range l.ce.layers {
if layer != nil && layer.BorderColor() != nil {
color := *layer.BorderColor()
interval.Visit(layer.Spans(), info.LineSpan, func(vs, ve uint64, _ int) {
s, e := vs-start, ve-start
r := math.CreateRect(offsets[s].X, 0, offsets[e-1].X+info.GlyphWidth, info.LineHeight)
c.DrawRoundedRect(r, 3, 3, 3, 3, gxui.CreatePen(0.5, color), gxui.TransparentBrush)
})
}
}
}