font atlas: expose tStr and related

fix #507

Canvas.go

@@ -75,7 +75,7 @@ func (c *Canvas) AddRectFilled(pMin, pMax image.Point, col color.Color, rounding
 
 // AddText draws text.
 func (c *Canvas) AddText(pos image.Point, col color.Color, text string) {
-	c.drawlist.AddText(ToVec2(pos), ToVec4Color(col), tStr(text))
+	c.drawlist.AddText(ToVec2(pos), ToVec4Color(col), RegisterString(text))
 }
 
 // AddBezierCubic draws bezier cubic.

ClickableWidgets.go

@@ -63,7 +63,7 @@ func (b *ButtonWidget) Build() {
 		defer imgui.EndDisabled()
 	}
 
-	if imgui.ButtonV(tStr(b.id), imgui.Vec2{X: b.width, Y: b.height}) && b.onClick != nil {
+	if imgui.ButtonV(RegisterString(b.id), imgui.Vec2{X: b.width, Y: b.height}) && b.onClick != nil {
 		b.onClick()
 	}
 }
@@ -135,7 +135,7 @@ func (b *SmallButtonWidget) OnClick(onClick func()) *SmallButtonWidget {
 
 // Build implements Widget interface.
 func (b *SmallButtonWidget) Build() {
-	if imgui.SmallButton(tStr(b.id)) && b.onClick != nil {
+	if imgui.SmallButton(RegisterString(b.id)) && b.onClick != nil {
 		b.onClick()
 	}
 }
@@ -182,7 +182,7 @@ func (b *InvisibleButtonWidget) ID(id string) *InvisibleButtonWidget {
 
 // Build implements Widget interface.
 func (b *InvisibleButtonWidget) Build() {
-	if imgui.InvisibleButton(tStr(b.id), imgui.Vec2{X: b.width, Y: b.height}) && b.onClick != nil {
+	if imgui.InvisibleButton(RegisterString(b.id), imgui.Vec2{X: b.width, Y: b.height}) && b.onClick != nil {
 		b.onClick()
 	}
 }
@@ -371,7 +371,7 @@ func (c *CheckboxWidget) OnChange(onChange func()) *CheckboxWidget {
 
 // Build implements Widget interface.
 func (c *CheckboxWidget) Build() {
-	if imgui.Checkbox(tStr(c.text), c.selected) && c.onChange != nil {
+	if imgui.Checkbox(RegisterString(c.text), c.selected) && c.onChange != nil {
 		c.onChange()
 	}
 }
@@ -404,7 +404,7 @@ func (r *RadioButtonWidget) OnChange(onChange func()) *RadioButtonWidget {
 
 // Build implements Widget interface.
 func (r *RadioButtonWidget) Build() {
-	if imgui.RadioButton(tStr(r.text), r.active) && r.onChange != nil {
+	if imgui.RadioButton(RegisterString(r.text), r.active) && r.onChange != nil {
 		r.onChange()
 	}
 }
@@ -479,7 +479,7 @@ func (s *SelectableWidget) Build() {
 		s.flags |= SelectableFlagsAllowDoubleClick
 	}
 
-	if imgui.SelectableV(tStr(s.label), s.selected, int(s.flags), imgui.Vec2{X: s.width, Y: s.height}) && s.onClick != nil {
+	if imgui.SelectableV(RegisterString(s.label), s.selected, int(s.flags), imgui.Vec2{X: s.width, Y: s.height}) && s.onClick != nil {
 		s.onClick()
 	}
 
@@ -503,7 +503,7 @@ type TreeNodeWidget struct {
 // TreeNode creates a new tree node widget.
 func TreeNode(label string) *TreeNodeWidget {
 	return &TreeNodeWidget{
-		label:        tStr(label),
+		label:        RegisterString(label),
 		flags:        0,
 		layout:       nil,
 		eventHandler: nil,

CodeEditor.go

@@ -197,7 +197,7 @@ func (ce *CodeEditorWidget) Build() {
 	s := ce.getState()
 
 	// register text in font atlas
-	tStr(s.editor.GetText())
+	RegisterString(s.editor.GetText())
 
 	// build editor
 	s.editor.Render(ce.title, imgui.Vec2{X: ce.width, Y: ce.height}, ce.border)

ExtraWidgets.go

@@ -192,10 +192,10 @@ func (ttr *TreeTableRowWidget) BuildTreeTableRow() {
 
 	open := false
 	if len(ttr.children) > 0 {
-		open = imgui.TreeNodeV(tStr(ttr.label), int(ttr.flags))
+		open = imgui.TreeNodeV(RegisterString(ttr.label), int(ttr.flags))
 	} else {
 		ttr.flags |= TreeNodeFlagsLeaf | TreeNodeFlagsNoTreePushOnOpen
-		imgui.TreeNodeV(tStr(ttr.label), int(ttr.flags))
+		imgui.TreeNodeV(RegisterString(ttr.label), int(ttr.flags))
 	}
 
 	for _, w := range ttr.layout {
@@ -571,7 +571,7 @@ func (d *DatePickerWidget) Build() {
 		const yearButtonSize = 25
 
 		Row(
-			Label(tStr(" Year")),
+			Label(RegisterString(" Year")),
 			Labelf("%14d", d.date.Year()),
 			Button("-##"+d.id+"year").OnClick(func() {
 				*d.date = d.date.AddDate(-1, 0, 0)

FontAtlasProsessor.go

@@ -57,7 +57,7 @@ func initFontAtlasProcessor() {
 	extraFontMap = make(map[string]*imgui.Font)
 
 	// Pre register numbers
-	tStr(preRegisterString)
+	RegisterString(preRegisterString)
 
 	// Pre-register fonts
 	os := runtime.GOOS
@@ -188,9 +188,9 @@ func registerDefaultFonts(fontInfos []FontInfo) {
 	}
 }
 
-// Register string to font atlas builder.
+// RegisterString register string to font atlas builder.
 // Note only register strings that will be displayed on the UI.
-func tStr(str string) string {
+func RegisterString(str string) string {
 	for _, s := range str {
 		if _, ok := stringMap.Load(s); !ok {
 			stringMap.Store(s, false)
@@ -201,16 +201,17 @@ func tStr(str string) string {
 	return str
 }
 
-// Register string pointer to font atlas builder.
+// RegisterStringPointer registers string pointer to font atlas builder.
 // Note only register strings that will be displayed on the UI.
-func tStrPtr(str *string) *string {
-	tStr(*str)
+func RegisterStringPointer(str *string) *string {
+	RegisterString(*str)
 	return str
 }
 
-func tStrSlice(str []string) []string {
+// RegisterStringSlice calls RegisterString for each slice element
+func RegisterStringSlice(str []string) []string {
 	for _, s := range str {
-		tStr(s)
+		RegisterString(s)
 	}
 
 	return str

Markdown.go

@@ -59,7 +59,7 @@ func (m *MarkdownWidget) Header(level int, font *FontInfo, separator bool) *Mark
 
 // Build implements Widget interface.
 func (m *MarkdownWidget) Build() {
-	imgui.Markdown(tStrPtr(m.md), m.linkCb, loadImage, m.headers)
+	imgui.Markdown(RegisterStringPointer(m.md), m.linkCb, loadImage, m.headers)
 }
 
 func loadImage(path string) imgui.MarkdownImageData {

Plot.go

@@ -176,11 +176,11 @@ func (p *PlotCanvasWidget) Build() {
 		}
 
 		if imgui.ImPlotBegin(
-			tStr(p.title), tStr(p.xLabel),
-			tStr(p.yLabel), ToVec2(image.Pt(p.width, p.height)),
+			RegisterString(p.title), RegisterString(p.xLabel),
+			RegisterString(p.yLabel), ToVec2(image.Pt(p.width, p.height)),
 			imgui.ImPlotFlags(p.flags), imgui.ImPlotAxisFlags(p.xFlags),
 			imgui.ImPlotAxisFlags(p.yFlags), imgui.ImPlotAxisFlags(p.y2Flags),
-			imgui.ImPlotAxisFlags(p.y3Flags), tStr(p.y2Label), tStr(p.y3Label),
+			imgui.ImPlotAxisFlags(p.y3Flags), RegisterString(p.y2Label), RegisterString(p.y3Label),
 		) {
 			for _, plot := range p.plots {
 				plot.Plot()
@@ -273,7 +273,7 @@ func (p *PlotBarHWidget) Offset(offset int) *PlotBarHWidget {
 
 // Plot implements plot interface.
 func (p *PlotBarHWidget) Plot() {
-	imgui.ImPlotBarsH(tStr(p.title), p.data, p.height, p.shift, p.offset)
+	imgui.ImPlotBarsH(RegisterString(p.title), p.data, p.height, p.shift, p.offset)
 }
 
 // PlotLineWidget represents a plot line (linear chart).
@@ -323,7 +323,7 @@ func (p *PlotLineWidget) Offset(offset int) *PlotLineWidget {
 // Plot implements Plot interface.
 func (p *PlotLineWidget) Plot() {
 	imgui.ImPlotSetPlotYAxis(imgui.ImPlotYAxis(p.yAxis))
-	imgui.ImPlotLine(tStr(p.title), p.values, p.xScale, p.x0, p.offset)
+	imgui.ImPlotLine(RegisterString(p.title), p.values, p.xScale, p.x0, p.offset)
 }
 
 // PlotLineXYWidget adds XY plot line.
@@ -359,7 +359,7 @@ func (p *PlotLineXYWidget) Offset(offset int) *PlotLineXYWidget {
 // Plot implements Plot interface.
 func (p *PlotLineXYWidget) Plot() {
 	imgui.ImPlotSetPlotYAxis(imgui.ImPlotYAxis(p.yAxis))
-	imgui.ImPlotLineXY(tStr(p.title), p.xs, p.ys, p.offset)
+	imgui.ImPlotLineXY(RegisterString(p.title), p.xs, p.ys, p.offset)
 }
 
 // PlotPieChartWidget represents a pie chart.
@@ -403,7 +403,7 @@ func (p *PlotPieChartWidget) Angle0(a float64) *PlotPieChartWidget {
 }
 
 func (p *PlotPieChartWidget) Plot() {
-	imgui.ImPlotPieChart(tStrSlice(p.labels), p.values, p.x, p.y, p.radius, p.normalize, p.labelFormat, p.angle0)
+	imgui.ImPlotPieChart(RegisterStringSlice(p.labels), p.values, p.x, p.y, p.radius, p.normalize, p.labelFormat, p.angle0)
 }
 
 type PlotScatterWidget struct {
@@ -439,7 +439,7 @@ func (p *PlotScatterWidget) Offset(offset int) *PlotScatterWidget {
 }
 
 func (p *PlotScatterWidget) Plot() {
-	imgui.ImPlotScatter(tStr(p.label), p.values, p.xscale, p.x0, p.offset)
+	imgui.ImPlotScatter(RegisterString(p.label), p.values, p.xscale, p.x0, p.offset)
 }
 
 type PlotScatterXYWidget struct {
@@ -463,5 +463,5 @@ func (p *PlotScatterXYWidget) Offset(offset int) *PlotScatterXYWidget {
 }
 
 func (p *PlotScatterXYWidget) Plot() {
-	imgui.ImPlotScatterXY(tStr(p.label), p.xs, p.ys, p.offset)
+	imgui.ImPlotScatterXY(RegisterString(p.label), p.xs, p.ys, p.offset)
 }

Popups.go

@@ -29,7 +29,7 @@ type PopupWidget struct {
 // Popup creates new popup widget.
 func Popup(name string) *PopupWidget {
 	return &PopupWidget{
-		name:   tStr(name),
+		name:   RegisterString(name),
 		flags:  0,
 		layout: nil,
 	}
@@ -69,7 +69,7 @@ type PopupModalWidget struct {
 // PopupModal creates new popup modal widget.
 func PopupModal(name string) *PopupModalWidget {
 	return &PopupModalWidget{
-		name:   tStr(name),
+		name:   RegisterString(name),
 		open:   nil,
 		flags:  WindowFlagsNoResize,
 		layout: nil,

ProgressIndicator.go

@@ -95,7 +95,7 @@ func (p *ProgressIndicatorWidget) Build() {
 
 				// Draw text
 				if len(p.label) > 0 {
-					labelWidth, _ := CalcTextSize(tStr(p.label))
+					labelWidth, _ := CalcTextSize(RegisterString(p.label))
 					labelPos := centerPt.Add(image.Pt(-1*int(labelWidth/2), int(p.radius+p.radius/5+8)))
 					canvas.AddText(labelPos, rgba, p.label)
 				}

SliderWidgets.go

@@ -55,7 +55,7 @@ func (s *SliderIntWidget) OnChange(onChange func()) *SliderIntWidget {
 
 // Label sets slider label (id).
 func (s *SliderIntWidget) Label(label string) *SliderIntWidget {
-	s.label = tStr(label)
+	s.label = RegisterString(label)
 	return s
 }
 
@@ -71,7 +71,7 @@ func (s *SliderIntWidget) Build() {
 		defer PopItemWidth()
 	}
 
-	if imgui.SliderIntV(tStr(s.label), s.value, s.min, s.max, s.format) && s.onChange != nil {
+	if imgui.SliderIntV(RegisterString(s.label), s.value, s.min, s.max, s.format) && s.onChange != nil {
 		s.onChange()
 	}
 }
@@ -131,7 +131,7 @@ func (vs *VSliderIntWidget) OnChange(onChange func()) *VSliderIntWidget {
 
 // Label sets slider's label (id).
 func (vs *VSliderIntWidget) Label(label string) *VSliderIntWidget {
-	vs.label = tStr(label)
+	vs.label = RegisterString(label)
 	return vs
 }
 
@@ -143,7 +143,7 @@ func (vs *VSliderIntWidget) Labelf(format string, args ...any) *VSliderIntWidget
 // Build implements Widget interface.
 func (vs *VSliderIntWidget) Build() {
 	if imgui.VSliderIntV(
-		tStr(vs.label),
+		RegisterString(vs.label),
 		imgui.Vec2{X: vs.width, Y: vs.height},
 		vs.value,
 		vs.min,
@@ -204,7 +204,7 @@ func (sf *SliderFloatWidget) Size(width float32) *SliderFloatWidget {
 
 // Label sets slider's label (id).
 func (sf *SliderFloatWidget) Label(label string) *SliderFloatWidget {
-	sf.label = tStr(label)
+	sf.label = RegisterString(label)
 	return sf
 }
 
@@ -220,7 +220,7 @@ func (sf *SliderFloatWidget) Build() {
 		defer PopItemWidth()
 	}
 
-	if imgui.SliderFloatV(tStr(sf.label), sf.value, sf.min, sf.max, sf.format, 1.0) && sf.onChange != nil {
+	if imgui.SliderFloatV(RegisterString(sf.label), sf.value, sf.min, sf.max, sf.format, 1.0) && sf.onChange != nil {
 		sf.onChange()
 	}
 }

TableWidgets.go

@@ -67,7 +67,7 @@ type TableColumnWidget struct {
 
 func TableColumn(label string) *TableColumnWidget {
 	return &TableColumnWidget{
-		label:              tStr(label),
+		label:              RegisterString(label),
 		flags:              0,
 		innerWidthOrWeight: 0,
 		userID:             0,

TextWidgets.go

@@ -72,8 +72,8 @@ func (i *InputTextMultilineWidget) Size(width, height float32) *InputTextMultili
 // Build implements Widget interface.
 func (i *InputTextMultilineWidget) Build() {
 	if imgui.InputTextMultilineV(
-		tStr(i.label),
-		tStrPtr(i.text),
+		RegisterString(i.label),
+		RegisterStringPointer(i.text),
 		imgui.Vec2{
 			X: i.width,
 			Y: i.height,
@@ -111,7 +111,7 @@ type BulletTextWidget struct {
 // BulletText creates bulletTextWidget.
 func BulletText(text string) *BulletTextWidget {
 	return &BulletTextWidget{
-		text: tStr(text),
+		text: RegisterString(text),
 	}
 }
 
@@ -165,7 +165,7 @@ func InputText(value *string) *InputTextWidget {
 
 // Label adds label (alternatively you can use it to set widget's id).
 func (i *InputTextWidget) Label(label string) *InputTextWidget {
-	i.label = tStr(label)
+	i.label = RegisterString(label)
 	return i
 }
 
@@ -183,7 +183,7 @@ func (i *InputTextWidget) AutoComplete(candidates []string) *InputTextWidget {
 
 // Hint sets hint text.
 func (i *InputTextWidget) Hint(hint string) *InputTextWidget {
-	i.hint = tStr(hint)
+	i.hint = RegisterString(hint)
 	return i
 }
 
@@ -229,7 +229,7 @@ func (i *InputTextWidget) Build() {
 		defer PopItemWidth()
 	}
 
-	isChanged := imgui.InputTextWithHint(i.label, i.hint, tStrPtr(i.value), int(i.flags), i.cb)
+	isChanged := imgui.InputTextWithHint(i.label, i.hint, RegisterStringPointer(i.value), int(i.flags), i.cb)
 
 	if isChanged && i.onChange != nil {
 		i.onChange()
@@ -295,7 +295,7 @@ func InputInt(value *int32) *InputIntWidget {
 
 // Label sets label (id).
 func (i *InputIntWidget) Label(label string) *InputIntWidget {
-	i.label = tStr(label)
+	i.label = RegisterString(label)
 	return i
 }
 
@@ -360,7 +360,7 @@ func InputFloat(value *float32) *InputFloatWidget {
 
 // Label sets label of input field.
 func (i *InputFloatWidget) Label(label string) *InputFloatWidget {
-	i.label = tStr(label)
+	i.label = RegisterString(label)
 	return i
 }
 
@@ -417,7 +417,7 @@ type LabelWidget struct {
 // Label constructs label widget.
 func Label(label string) *LabelWidget {
 	return &LabelWidget{
-		label:   tStr(label),
+		label:   RegisterString(label),
 		wrapped: false,
 	}
 }