func main() { qt5.Main(func() { w := qt5.NewWidget() w.OnPaintEvent(func(e *qt5.PaintEvent) { paint := qt5.NewPainter() defer paint.Close() paint.Begin(w) pen := qt5.NewPen() pen.SetColor(color.RGBA{255, 128, 0, 0}) pen.SetWidth(2) fmt.Println(pen, pen.Color(), pen.Width()) paint.SetPen(pen) brush := qt5.NewBrush() brush.SetStyle(qt5.SolidPattern) brush.SetColor(color.RGBA{128, 128, 0, 255}) paint.SetBrush(brush) paint.DrawRect(qt5.Rect{10, 10, 100, 100}) }) w.SetSize(qt5.Size{400, 400}) w.Show() qt5.Run() }) }
func fnPaint(ev *qt5.PaintEvent, w *qt5.Widget) { p := qt5.NewPainter() defer p.Close() p.Begin(w) p.DrawPoint(qt5.Pt(10, 10)) p.DrawLine(qt5.Pt(10, 10), qt5.Pt(100, 100)) p.End() }
func (p *MyWidget) paintEvent(e *qt5.PaintEvent) { paint := qt5.NewPainter() defer paint.Close() paint.Begin(p) paint.SetFont(p.font) paint.DrawLines(p.line) paint.SetFont(p.font) paint.DrawText(qt5.Pt(100, 100), "draw test") for _, v := range p.lines { //paint.DrawLines(v) paint.DrawPolyline(v) } paint.End() runtime.GC() }
func ui_main() { w := qt5.NewWidget() defer w.Close() w.SetWindowTitle("Rose") rose := qt5.NewWidget() rose.SetMinimumSize(qt5.Sz(510, 510)) img := qt5.NewImageWithSize(500, 500) defer img.Close() imgPainter := qt5.NewPainterWithImage(img) imgPainter.InitFrom(rose) defer imgPainter.Close() var timerid int = -1 var count int var timerValue int = 50 rose.OnTimerEvent(func(e *qt5.TimerEvent) { if e.TimerId() == timerid { draw(imgPainter) rose.Update() count++ if count >= max { w.KillTimer(timerid) } w.SetWindowTitle(fmt.Sprintf("Rose: %d*1e4", count)) } }) rose.OnPaintEvent(func(e *qt5.PaintEvent) { painter := qt5.NewPainter() defer painter.Close() painter.Begin(rose) painter.DrawImageEx(qt5.Point{0, 0}, img, img.Rect()) painter.End() }) load := func() { if timerid != -1 { rose.KillTimer(timerid) } for k, _ := range m { delete(m, k) } img.Fill(rgb(255, 255, 255)) count = 0 timerid = rose.StartTimer(timerValue) } stop := func() { rose.KillTimer(timerid) timerid = -1 } vbox := qt5.NewVBoxLayout() hbox := qt5.NewHBoxLayout() vbox.AddWidget(rose) vbox.AddLayout(hbox) loadBtn := qt5.NewButtonWithText("Reload") stopBtn := qt5.NewButtonWithText("Stop") exitBtn := qt5.NewButtonWithText("Exit") timerLabel := qt5.NewLabelWithText("Timer: 50 ") timerSlider := qt5.NewSlider() timerSlider.SetRange(1, 600) timerSlider.SetValue(50) timerSlider.OnValueChanged(func(v int) { timerValue = v timerLabel.SetText(fmt.Sprintf("Timer:%4d ", v)) }) maxLabel := qt5.NewLabelWithText("Max: 1024 ") maxSlider := qt5.NewSlider() maxSlider.SetRange(10, 10240) maxSlider.SetValue(1024) maxSlider.OnValueChanged(func(v int) { max = v maxLabel.SetText(fmt.Sprintf("Max:%5d ", v)) }) hbox.AddWidget(maxLabel) hbox.AddWidget(maxSlider) hbox.AddSpacing(10) hbox.AddWidget(timerLabel) hbox.AddWidget(timerSlider) hbox.AddSpacing(10) hbox.AddWidget(loadBtn) hbox.AddWidget(stopBtn) hbox.AddStretch(0) hbox.AddWidget(exitBtn) loadBtn.OnClicked(load) stopBtn.OnClicked(stop) exitBtn.OnClicked(func() { w.Close() }) w.SetLayout(vbox) w.Show() w.OnCloseEvent(func(e *qt5.CloseEvent) { rose.KillTimer(timerid) }) load() qt5.Run() }
func newQLimeView(v *backend.View) *QLimeView { log4go.Debug("new_QLimeView entered") defer log4go.Debug("new_QLimeView exited") var ret QLimeView ret.Widget = qt5.NewWidget() ret.v = v ret.Widget.OnPaintEvent(func(ev *qt5.PaintEvent) { p := qt5.NewPainter() defer p.Close() p.Begin(ret) b := v.Buffer() ps := p.Font().PointSize() pen := qt5.NewPen() p.SetPen(pen) brush := qt5.NewBrush() brush.SetStyle(qt5.SolidPattern) def := scheme.Settings[0] p.SetBrush(brush) f := p.Font() f.SetFixedPitch(true) p.SetFont(f) brush.SetColor(color.RGBA(def.Settings["background"])) p.DrawRect(ev.Rect()) is_widget, ok := v.Settings().Get("is_widget", false).(bool) is_widget = ok && is_widget pen.SetColor(color.RGBA(def.Settings["background"])) p.SetPen(pen) for y := 0; y < 20; y++ { pos := b.TextPoint(y, 0) line := b.Line(pos) if is_widget { p.DrawText(qt5.Point{0, (y + 1) * (ps + 2)}, b.Substr(line)) } else { for line.Contains(pos) { scope := primitives.Region{pos, pos} sn := v.ScopeName(pos) for line.Contains(pos) { pos++ if v.ScopeName(pos) != sn { scope.B = pos break } } is := line.Intersection(scope) c := color.RGBA(def.Settings["foreground"]) s := scheme.ClosestMatchingSetting(sn) if v, ok := s.Settings["foreground"]; ok { c = color.RGBA(v) } pen.SetColor(c) p.SetPen(pen) _, col := b.RowCol(line.A) p.DrawText(qt5.Point{col * ps / 2, (y + 1) * (ps + 2)}, b.Substr(is)) line.A = is.End() } } } }) ret.Widget.OnResizeEvent(func(ev *qt5.ResizeEvent) { if w, ok := v.Settings().Get("is_widget", false).(bool); ok && !w { ret.Widget.SetMinimumSize(qt5.Size{600, 100}) } }) v.Settings().Set("lime.qt.widget", &ret) return &ret }