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No commits in common. "12a9f5ee393aa453f0b87f8eb71837a2b1dc825f" and "bcd32f83725c98e73ec05b60e6abb769df2a4764" have entirely different histories.

12 changed files with 93 additions and 254 deletions

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@ -1,24 +0,0 @@
package embedres
import (
"embed"
"io"
"opslag.de/schobers/zntg/ui"
)
var _ ui.Resources = &resources{}
type resources struct {
fs embed.FS
}
func New(fs embed.FS) ui.Resources {
return &resources{fs}
}
func (r resources) Destroy() error { return nil }
func (r resources) OpenResource(name string) (io.ReadCloser, error) {
return r.fs.Open(name)
}

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@ -40,30 +40,30 @@ func BuildIconButton(icon, text string, fn func(b *Button)) *Button {
} }
func (b *Button) desiredSize(ctx Context) geom.PointF32 { func (b *Button) desiredSize(ctx Context) geom.PointF32 {
var pad = b.ActualTextPadding(ctx) var pad = ctx.Style().Dimensions.TextPadding
var font = b.ActualFont(ctx) var font = b.Font_(ctx)
var w, h float32 = 0, font.Height() var w, h float32 = 0, font.Height()
icon, iconW, iconH := b.icon(ctx) icon, iconW, iconH := b.icon(ctx)
if len(b.Text) == 0 { if len(b.Text) == 0 {
if icon != nil && iconH > 0 { if icon != nil && iconH > 0 {
w = pad.Left + iconW + pad.Right w = pad + iconW + pad
h = iconH h = iconH
} }
} else { } else {
w += pad.Left + font.WidthOf(b.Text) + pad.Right w += pad + font.WidthOf(b.Text) + pad
if icon != nil && iconH > 0 { if icon != nil && iconH > 0 {
if b.IconHeight == 0 { if b.IconHeight == 0 {
iconW = iconW * h / iconH iconW = iconW * h / iconH
// iconH = h // iconH = h
} }
w += iconW + pad.Right w += iconW + pad
} }
} }
if w == 0 { if w == 0 {
return geom.ZeroPtF32 return geom.ZeroPtF32
} }
return geom.PtF32(w, pad.Top+h+pad.Bottom) return geom.PtF32(w, pad+h+pad)
} }
func (b *Button) icon(ctx Context) (Texture, float32, float32) { func (b *Button) icon(ctx Context) (Texture, float32, float32) {
@ -203,8 +203,8 @@ func (b *Button) Render(ctx Context) {
bounds.Min.X += .5 * deltaX bounds.Min.X += .5 * deltaX
bounds.Min.Y += .5 * deltaY bounds.Min.Y += .5 * deltaY
pad := b.ActualTextPadding(ctx) var pad = style.Dimensions.TextPadding
bounds = pad.InsetRect(bounds) bounds = bounds.Inset(pad)
boundsH := bounds.Dy() boundsH := bounds.Dy()
pos := bounds.Min pos := bounds.Min
icon, iconW, iconH := b.icon(ctx) icon, iconW, iconH := b.icon(ctx)
@ -222,10 +222,10 @@ func (b *Button) Render(ctx Context) {
iconOffsetY = .5 * (boundsH - iconH) iconOffsetY = .5 * (boundsH - iconH)
} }
ctx.Renderer().DrawTextureOptions(icon, geom.RectRelF32(pos.X, pos.Y+iconOffsetY, iconW, iconH), DrawOptions{Tint: textColor}) ctx.Renderer().DrawTextureOptions(icon, geom.RectRelF32(pos.X, pos.Y+iconOffsetY, iconW, iconH), DrawOptions{Tint: textColor})
pos.X += iconW + pad.Right pos.X += iconW + pad
} }
if len(b.Text) != 0 { if len(b.Text) != 0 {
font := b.ActualFont(ctx) font := b.Font_(ctx)
ctx.Renderer().Text(font, geom.PtF32(pos.X, pos.Y+.5*(boundsH-font.Height())), textColor, b.Text) ctx.Renderer().Text(font, geom.PtF32(pos.X, pos.Y+.5*(boundsH-font.Height())), textColor, b.Text)
} }

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@ -22,16 +22,16 @@ func BuildCheckbox(text string, fn func(c *Checkbox)) *Checkbox {
} }
func (c *Checkbox) desiredSize(ctx Context) geom.PointF32 { func (c *Checkbox) desiredSize(ctx Context) geom.PointF32 {
pad := c.ActualTextPadding(ctx) var pad = ctx.Style().Dimensions.TextPadding
font := c.ActualFont(ctx) font := c.Font_(ctx)
var w, h float32 = 0, font.Height() var w, h float32 = 0, font.Height()
if len(c.Text) != 0 { if len(c.Text) != 0 {
w += pad.Left + font.WidthOf(c.Text) w += pad + font.WidthOf(c.Text)
} }
icon := c.getOrCreateNormalIcon(ctx) icon := c.getOrCreateNormalIcon(ctx)
_, iconWidth := ScaleToHeight(SizeOfTexture(icon).ToF32(), h) _, iconWidth := ScaleToHeight(SizeOfTexture(icon).ToF32(), h)
w += pad.Left + iconWidth w += pad + iconWidth
return geom.PtF32(w+pad.Right, pad.Top+h+pad.Bottom) return geom.PtF32(w+pad, pad+h+pad)
} }
func (c *Checkbox) icon(ctx Context) Texture { func (c *Checkbox) icon(ctx Context) Texture {
@ -108,8 +108,8 @@ func (c *Checkbox) Render(ctx Context) {
fore := c.TextColor(ctx) fore := c.TextColor(ctx)
bounds := c.bounds bounds := c.bounds
pad := c.ActualTextPadding(ctx) var pad = style.Dimensions.TextPadding
bounds = pad.InsetRect(bounds) bounds = bounds.Inset(pad)
boundsH := bounds.Dy() boundsH := bounds.Dy()
pos := bounds.Min pos := bounds.Min
icon := c.icon(ctx) icon := c.icon(ctx)
@ -125,10 +125,10 @@ func (c *Checkbox) Render(ctx Context) {
_, iconWidth := ScaleToHeight(SizeOfTexture(scaledIcon).ToF32(), boundsH) _, iconWidth := ScaleToHeight(SizeOfTexture(scaledIcon).ToF32(), boundsH)
rect := geom.RectRelF32(pos.X, pos.Y, iconWidth, boundsH) rect := geom.RectRelF32(pos.X, pos.Y, iconWidth, boundsH)
ctx.Renderer().DrawTextureOptions(scaledIcon, rect, DrawOptions{Tint: iconColor}) ctx.Renderer().DrawTextureOptions(scaledIcon, rect, DrawOptions{Tint: iconColor})
pos.X += iconWidth + pad.Right pos.X += iconWidth + pad
} }
if len(c.Text) != 0 { if len(c.Text) != 0 {
font := c.ActualFont(ctx) font := c.Font_(ctx)
ctx.Renderer().Text(font, geom.PtF32(pos.X, pos.Y+.5*(boundsH-font.Height())), fore, c.Text) ctx.Renderer().Text(font, geom.PtF32(pos.X, pos.Y+.5*(boundsH-font.Height())), fore, c.Text)
} }
} }

View File

@ -103,7 +103,6 @@ type ControlBase struct {
Background color.Color Background color.Color
Font FontStyle Font FontStyle
TextAlignment HorizontalAlignment TextAlignment HorizontalAlignment
TextPadding SideLengths
Disabled bool Disabled bool
@ -189,15 +188,11 @@ func (c *ControlBase) HandleNotify(ctx Context, e Event, notifier Notifier) bool
return false return false
} }
func (c *ControlBase) ActualFont(ctx Context) Font { func (c *ControlBase) Font_(ctx Context) Font {
name := c.FontName(ctx) name := c.FontName(ctx)
return ctx.Fonts().Font(name) return ctx.Fonts().Font(name)
} }
func (c *ControlBase) ActualTextPadding(ctx Context) Sides {
return c.TextPadding.Zero(ctx.Style().Dimensions.TextPadding)
}
func (c *ControlBase) FontColor(ctx Context, color color.Color) color.Color { func (c *ControlBase) FontColor(ctx Context, color color.Color) color.Color {
if c.Disabled { if c.Disabled {
return ctx.Style().Palette.TextOnDisabled return ctx.Style().Palette.TextOnDisabled

View File

@ -77,9 +77,8 @@ func NewDebugOverlay(root Control) *debugOverlay {
func (o *debugOverlay) renderControl(ctx Context, control Control) { func (o *debugOverlay) renderControl(ctx Context, control Control) {
renderer := ctx.Renderer() renderer := ctx.Renderer()
// bounds := control.Bounds()
currentColor := zntg.MustHexColor("#FF0000") // renderer.Rectangle(bounds, o.boundsColor, 1)
parentColor := zntg.MustHexColor("#0000FF")
var maxY float32 var maxY float32
var renderHoverNode func(pos geom.PointF32, node *controlNode) var renderHoverNode func(pos geom.PointF32, node *controlNode)
@ -97,10 +96,6 @@ func (o *debugOverlay) renderControl(ctx Context, control Control) {
renderer.FillRectangle(pos.RectRel2D(nameTextureWidth, nameTextureHeight), color.Black) renderer.FillRectangle(pos.RectRel2D(nameTextureWidth, nameTextureHeight), color.Black)
renderer.DrawTexturePoint(nameTexture, pos) renderer.DrawTexturePoint(nameTexture, pos)
childPos := pos.Add2D(nameTextureWidth+ctx.Style().Dimensions.Margin, 0) childPos := pos.Add2D(nameTextureWidth+ctx.Style().Dimensions.Margin, 0)
if len(node.Children) == 0 {
renderer.Rectangle(node.Parent.Bounds, parentColor, 1)
renderer.Rectangle(node.Bounds, currentColor, 1)
}
for _, child := range node.Children { for _, child := range node.Children {
if childPos.Y == maxY { if childPos.Y == maxY {
childPos.Y = maxY + nameTextureHeight childPos.Y = maxY + nameTextureHeight
@ -119,19 +114,16 @@ func (o *debugOverlay) renderControl(ctx Context, control Control) {
} }
func createHoverNodes(hover geom.PointF32, control Control) *controlNode { func createHoverNodes(hover geom.PointF32, control Control) *controlNode {
bounds := control.Bounds() if !hover.In(control.Bounds()) {
if !hover.In(bounds) {
return nil return nil
} }
node := &controlNode{Name: controlName(control), Bounds: bounds} node := &controlNode{Name: controlName(control)}
for _, child := range controlChildren(control) { for _, child := range controlChildren(control) {
childNode := createHoverNodes(hover, child) childNode := createHoverNodes(hover, child)
if childNode == nil { if childNode != nil {
continue
}
childNode.Parent = node
node.Children = append(node.Children, childNode) node.Children = append(node.Children, childNode)
} }
}
return node return node
} }
@ -155,7 +147,5 @@ func (o *debugOverlay) Shown() {}
type controlNode struct { type controlNode struct {
Name string Name string
Bounds geom.RectangleF32
Parent *controlNode
Children []*controlNode Children []*controlNode
} }

View File

@ -6,18 +6,10 @@ import (
"opslag.de/schobers/geom" "opslag.de/schobers/geom"
) )
type TextOverflow int
const (
TextOverflowClip TextOverflow = iota
TextOverflowEllipsis
)
type Label struct { type Label struct {
ControlBase ControlBase
Text string Text string
TextOverflow TextOverflow
DropShadow color.Color DropShadow color.Color
desired CachedValue desired CachedValue
@ -36,11 +28,11 @@ func (l *Label) hashDesiredSize(ctx Context) string {
} }
func (l *Label) desiredSize(ctx Context) interface{} { func (l *Label) desiredSize(ctx Context) interface{} {
font := l.ActualFont(ctx) font := l.Font_(ctx)
width := font.WidthOf(l.Text) width := font.WidthOf(l.Text)
height := font.Height() height := font.Height()
pad := l.ActualTextPadding(ctx) pad := ctx.Style().Dimensions.TextPadding
return geom.PtF32(pad.Left+width+pad.Right, pad.Top+height+pad.Bottom) return geom.PtF32(width+pad*2, height+pad*2)
} }
func (l *Label) DesiredSize(ctx Context, _ geom.PointF32) geom.PointF32 { func (l *Label) DesiredSize(ctx Context, _ geom.PointF32) geom.PointF32 {
@ -48,8 +40,8 @@ func (l *Label) DesiredSize(ctx Context, _ geom.PointF32) geom.PointF32 {
} }
func (l *Label) getLabelTopLeft(ctx Context) geom.PointF32 { func (l *Label) getLabelTopLeft(ctx Context) geom.PointF32 {
pad := l.ActualTextPadding(ctx) pad := ctx.Style().Dimensions.TextPadding
bounds := pad.InsetRect(l.bounds) bounds := l.bounds.Inset(pad)
switch l.TextAlignment { switch l.TextAlignment {
case AlignRight: case AlignRight:
return geom.PtF32(bounds.Max.X, bounds.Min.Y) return geom.PtF32(bounds.Max.X, bounds.Min.Y)
@ -63,15 +55,10 @@ func (l *Label) getLabelTopLeft(ctx Context) geom.PointF32 {
func (l *Label) Render(ctx Context) { func (l *Label) Render(ctx Context) {
l.RenderBackground(ctx) l.RenderBackground(ctx)
fontColor := l.TextColor(ctx) fontColor := l.TextColor(ctx)
font := l.ActualFont(ctx) fontName := l.FontName(ctx)
topLeft := l.getLabelTopLeft(ctx) topLeft := l.getLabelTopLeft(ctx)
text := l.Text
availableWidth := l.bounds.Dx()
if l.TextOverflow == TextOverflowEllipsis {
text = fitTextEllipsis(font, text, availableWidth)
}
if l.DropShadow != nil { if l.DropShadow != nil {
ctx.Renderer().TextAlign(font, topLeft.Add2D(1, 1), l.DropShadow, text, l.TextAlignment) ctx.Fonts().TextAlign(fontName, topLeft.Add2D(1, 1), l.DropShadow, l.Text, l.TextAlignment)
} }
ctx.Renderer().TextAlign(font, topLeft, fontColor, text, l.TextAlignment) ctx.Fonts().TextAlign(fontName, topLeft, fontColor, l.Text, l.TextAlignment)
} }

View File

@ -24,54 +24,9 @@ func Fixed(l float32) *Length { return &Length{l} }
func Infinite() *Length { return &Length{geom.NaN32()} } func Infinite() *Length { return &Length{geom.NaN32()} }
func ZL() *Length { return &Length{0} }
type SideLengths struct { type SideLengths struct {
Left *Length Left *Length
Top *Length Top *Length
Right *Length Right *Length
Bottom *Length Bottom *Length
} }
func (l SideLengths) InsetRect(r geom.RectangleF32) geom.RectangleF32 {
return Sides{
Left: l.Left.Value(),
Top: l.Top.Value(),
Right: l.Right.Value(),
Bottom: l.Bottom.Value(),
}.InsetRect(r)
}
func (l SideLengths) Zero(value float32) Sides {
return Sides{
Left: l.Left.Zero(value),
Top: l.Top.Zero(value),
Right: l.Right.Zero(value),
Bottom: l.Bottom.Zero(value),
}
}
type Sides struct {
Left float32
Top float32
Right float32
Bottom float32
}
func (s Sides) InsetRect(r geom.RectangleF32) geom.RectangleF32 {
if r.Dx() < (s.Left + s.Right) {
r.Min.X += r.Dx() * s.Left / (s.Left + s.Right)
r.Max.X = r.Min.X
} else {
r.Min.X += s.Left
r.Max.X -= s.Right
}
if r.Dy() < (s.Top + s.Bottom) {
r.Min.Y += r.Dy() * s.Top / (s.Top + s.Bottom)
r.Max.Y = r.Min.Y
} else {
r.Min.Y += s.Top
r.Max.Y -= s.Bottom
}
return r
}

View File

@ -11,9 +11,6 @@ type overflow struct {
Background color.Color Background color.Color
ClipHorizontal bool
ClipVertical bool
barWidth float32 barWidth float32
desired geom.PointF32 desired geom.PointF32
bounds geom.RectangleF32 bounds geom.RectangleF32
@ -29,30 +26,18 @@ type overflow struct {
type ScrollControl interface { type ScrollControl interface {
Control Control
SetBackgroundColor(color.Color)
SetClipHorizontal(bool)
SetClipVertical(bool)
SetScrollbarColor(bar color.Color, hover color.Color) SetScrollbarColor(bar color.Color, hover color.Color)
} }
func BuildOverflow(content Control, build func(c ScrollControl)) ScrollControl {
o := &overflow{Proxy: Proxy{Content: content}}
o.hor = BuildScrollbar(OrientationHorizontal, func(*Scrollbar) {})
o.ver = BuildScrollbar(OrientationVertical, func(*Scrollbar) {})
if build != nil {
build(o)
}
return o
}
func Overflow(content Control) ScrollControl { func Overflow(content Control) ScrollControl {
return OverflowBackground(content, nil) return OverflowBackground(content, nil)
} }
func OverflowBackground(content Control, back color.Color) ScrollControl { func OverflowBackground(content Control, back color.Color) ScrollControl {
return BuildOverflow(content, func(c ScrollControl) { var o = &overflow{Proxy: Proxy{Content: content}, Background: back}
c.SetBackgroundColor(back) o.hor = BuildScrollbar(OrientationHorizontal, func(*Scrollbar) {})
}) o.ver = BuildScrollbar(OrientationVertical, func(*Scrollbar) {})
return o
} }
func (o *overflow) shouldScroll(bounds geom.RectangleF32) (hor bool, ver bool) { func (o *overflow) shouldScroll(bounds geom.RectangleF32) (hor bool, ver bool) {
@ -68,8 +53,6 @@ func (o *overflow) shouldScroll(bounds geom.RectangleF32) (hor bool, ver bool) {
if hor && !ver { if hor && !ver {
ver = scroll(size.Y+o.barWidth, bounds.Dy()) ver = scroll(size.Y+o.barWidth, bounds.Dy())
} }
hor = hor && !o.ClipHorizontal
ver = ver && !o.ClipVertical
return return
} }
@ -175,17 +158,6 @@ func (o *overflow) Render(ctx Context) {
bar.Render(ctx) bar.Render(ctx)
}) })
} }
func (o *overflow) SetBackgroundColor(c color.Color) {
o.Background = c
}
func (o *overflow) SetClipHorizontal(clip bool) {
o.ClipHorizontal = clip
}
func (o *overflow) SetClipVertical(clip bool) {
o.ClipVertical = clip
}
func (o *overflow) SetScrollbarColor(bar color.Color, hover color.Color) { func (o *overflow) SetScrollbarColor(bar color.Color, hover color.Color) {
o.hor.BarColor = bar o.hor.BarColor = bar

View File

@ -26,11 +26,11 @@ func BuildParagraph(text string, fn func(*Paragraph)) *Paragraph {
func fastFormatFloat32(f float32) string { return strconv.FormatFloat(float64(f), 'b', 32, 32) } func fastFormatFloat32(f float32) string { return strconv.FormatFloat(float64(f), 'b', 32, 32) }
func (p *Paragraph) desiredSize(ctx Context) interface{} { func (p *Paragraph) desiredSize(ctx Context) interface{} {
font := p.ActualFont(ctx) font := p.Font_(ctx)
pad := p.ActualTextPadding(ctx) pad := ctx.Style().Dimensions.TextPadding
lines := p.splitInLines(ctx, p.width-pad.Left-pad.Right) lines := p.splitInLines(ctx, p.width-2*pad)
return geom.PtF32(p.width, float32(len(lines))*font.Height()+pad.Top+pad.Bottom) return geom.PtF32(p.width, float32(len(lines))*font.Height()+2*pad)
} }
func (p *Paragraph) hashTextArranged(ctx Context) string { func (p *Paragraph) hashTextArranged(ctx Context) string {
@ -42,7 +42,38 @@ func (p *Paragraph) hashTextDesired(ctx Context) string {
} }
func (p *Paragraph) splitInLines(ctx Context, width float32) []string { func (p *Paragraph) splitInLines(ctx Context, width float32) []string {
font := p.ActualFont(ctx) font := p.Font_(ctx)
spaces := func(s string) []int { // creates a slice with indices where spaces can be found in string s
var spaces []int
offset := 0
for {
space := strings.Index(s[offset:], " ")
if space == -1 {
return spaces
}
offset += space
spaces = append(spaces, offset)
offset++
}
}
fit := func(s string) string { // tries to fit as much of string s in width space.
if font.WidthOf(s) < width {
return s
}
spaces := spaces(s)
// removes one word (delimited by spaces) at a time and tries until the result fits.
for split := len(spaces) - 1; split >= 0; split-- {
clipped := s[:spaces[split]]
if font.WidthOf(clipped) < width {
return clipped
}
}
// nothing fits (returns the whole string)...
return s
}
var lines []string var lines []string
for _, line := range strings.Split(p.Text, "\n") { for _, line := range strings.Split(p.Text, "\n") {
if len(line) == 0 { if len(line) == 0 {
@ -51,7 +82,7 @@ func (p *Paragraph) splitInLines(ctx Context, width float32) []string {
} }
for len(line) > 0 { for len(line) > 0 {
clipped := fitTextWord(font, line, width) clipped := fit(line)
lines = append(lines, clipped) lines = append(lines, clipped)
line = strings.TrimLeft(line[len(clipped):], " ") line = strings.TrimLeft(line[len(clipped):], " ")
} }
@ -60,8 +91,8 @@ func (p *Paragraph) splitInLines(ctx Context, width float32) []string {
} }
func (p *Paragraph) updateLines(ctx Context) interface{} { func (p *Paragraph) updateLines(ctx Context) interface{} {
pad := p.ActualTextPadding(ctx) pad := ctx.Style().Dimensions.TextPadding
return p.splitInLines(ctx, p.Bounds().Dx()-pad.Left-pad.Right) return p.splitInLines(ctx, p.Bounds().Dx()-2*pad)
} }
func (p *Paragraph) DesiredSize(ctx Context, size geom.PointF32) geom.PointF32 { func (p *Paragraph) DesiredSize(ctx Context, size geom.PointF32) geom.PointF32 {
@ -73,14 +104,14 @@ func (p *Paragraph) DesiredSize(ctx Context, size geom.PointF32) geom.PointF32 {
func (p *Paragraph) Render(ctx Context) { func (p *Paragraph) Render(ctx Context) {
p.RenderBackground(ctx) p.RenderBackground(ctx)
pad := p.ActualTextPadding(ctx) pad := ctx.Style().Dimensions.TextPadding
width := p.Bounds().Dx() - pad.Left - pad.Right width := p.Bounds().Dx() - 2*pad
lines := p.lines.GetContext(ctx, p.updateLines, p.hashTextArranged).([]string) lines := p.lines.GetContext(ctx, p.updateLines, p.hashTextArranged).([]string)
fontColor := p.TextColor(ctx) fontColor := p.TextColor(ctx)
fontName := p.FontName(ctx) fontName := p.FontName(ctx)
fontHeight := ctx.Fonts().Font(fontName).Height() fontHeight := ctx.Fonts().Font(fontName).Height()
bounds := pad.InsetRect(p.bounds) bounds := p.bounds.Inset(pad)
left := bounds.Min.X left := bounds.Min.X
switch p.TextAlignment { switch p.TextAlignment {

View File

@ -42,9 +42,7 @@ func (p *StackPanel) Arrange(ctx Context, bounds geom.RectangleF32, offset geom.
height = remainder / float32(stretch) height = remainder / float32(stretch)
} }
} }
minY := geom.Min32(bounds.Max.Y, bounds.Min.Y+childOffset) var child = geom.RectF32(bounds.Min.X, bounds.Min.Y+childOffset, bounds.Max.X, bounds.Min.Y+childOffset+height)
maxY := geom.Min32(bounds.Max.Y, bounds.Min.Y+childOffset+height)
var child = geom.RectF32(bounds.Min.X, minY, bounds.Max.X, maxY)
p.Children[i].Arrange(ctx, p.Orientation.FlipRect(child), offset, p) p.Children[i].Arrange(ctx, p.Orientation.FlipRect(child), offset, p)
childOffset += height childOffset += height
} }

View File

@ -1,68 +0,0 @@
package ui
import "strings"
// findOptimalFit tries to find the optimal (largest) fit for the interval [0..n] by doing a binary search.
func findOptimalFit(n int, fits func(i int) bool) int {
if n < 0 || fits(n) {
return n
}
min, max := 0, n
for {
if min == max {
if min == 0 && !fits(min) {
return -1
}
return min
}
middle := (max + min + 1) / 2
if fits(middle) {
min = middle
} else {
max = middle - 1
}
}
}
// findSpaces creates a slice with indices where spaces can be found in string s
func findSpaces(s string) []int {
var spaces []int
offset := 0
for {
space := strings.Index(s[offset:], " ")
if space == -1 {
return spaces
}
offset += space
spaces = append(spaces, offset)
offset++
}
}
func fitTextEllipsis(font Font, text string, availableWidth float32) string {
if font.WidthOf(text) <= availableWidth {
return text
}
ellipsis := "..."
availableWidth -= font.WidthOf(ellipsis)
cut := findOptimalFit(len(text), func(i int) bool { return font.WidthOf(text[:i]) <= availableWidth })
if cut == -1 {
return ""
}
return text[:cut] + ellipsis
}
// fitTextWord tries to fit as much of string s in width space.
func fitTextWord(font Font, s string, availableWidth float32) string {
if font.WidthOf(s) < availableWidth {
return s
}
spaces := findSpaces(s)
split := findOptimalFit(len(spaces)-1, func(i int) bool {
return font.WidthOf(s[:spaces[i]]) <= availableWidth
})
if split == -1 {
return s
}
return s[:spaces[split]]
}

View File

@ -49,18 +49,21 @@ func BuildTextBox(fn func(*TextBox)) *TextBox {
return b return b
} }
func (b *TextBox) pad(ctx Context) float32 {
return ctx.Style().Dimensions.TextPadding
}
func (b *TextBox) Arrange(ctx Context, bounds geom.RectangleF32, offset geom.PointF32, parent Control) { func (b *TextBox) Arrange(ctx Context, bounds geom.RectangleF32, offset geom.PointF32, parent Control) {
b.ControlBase.Arrange(ctx, bounds, offset, parent) b.ControlBase.Arrange(ctx, bounds, offset, parent)
pad := b.ActualTextPadding(ctx) b.box.Arrange(ctx, bounds.Inset(b.pad(ctx)), offset, b)
b.box.Arrange(ctx, pad.InsetRect(bounds), offset, b)
} }
func (b *TextBox) DesiredSize(ctx Context, _ geom.PointF32) geom.PointF32 { func (b *TextBox) DesiredSize(ctx Context, _ geom.PointF32) geom.PointF32 {
font := b.ActualFont(ctx) font := b.Font_(ctx)
var width = font.WidthOf(b.Text) var width = font.WidthOf(b.Text)
var height = font.Height() var height = font.Height()
pad := b.ActualTextPadding(ctx) var pad = b.pad(ctx)
return geom.PtF32(pad.Left+width+pad.Right, pad.Top+height+pad.Bottom) return geom.PtF32(width+pad*2, height+pad*2)
} }
func (b *TextBox) TextChanged() *Events { return &b.textChanged } func (b *TextBox) TextChanged() *Events { return &b.textChanged }
@ -68,7 +71,7 @@ func (b *TextBox) TextChanged() *Events { return &b.textChanged }
func (b *TextBox) mousePosToCaretPos(ctx Context, e MouseEvent) int { func (b *TextBox) mousePosToCaretPos(ctx Context, e MouseEvent) int {
p := b.ToControlPosition(e.Pos()) p := b.ToControlPosition(e.Pos())
offset := p.X - b.box.bounds.Min.X offset := p.X - b.box.bounds.Min.X
f := b.ActualFont(ctx) f := b.Font_(ctx)
var carets = [3]int{0, 0, len(b.Text)} var carets = [3]int{0, 0, len(b.Text)}
var offsets = [3]float32{0, 0, f.WidthOf(b.Text)} var offsets = [3]float32{0, 0, f.WidthOf(b.Text)}
var updateCenter = func() { var updateCenter = func() {
@ -259,7 +262,7 @@ func (b *TextBox) Render(ctx Context) {
back = ctx.Style().Palette.Background back = ctx.Style().Palette.Background
} }
renderer.Clear(back) renderer.Clear(back)
font := b.ActualFont(ctx) font := b.Font_(ctx)
if b.Selection.Start != b.Selection.End { if b.Selection.Start != b.Selection.End {
left, right := font.WidthOf(b.Text[:b.Selection.Start]), font.WidthOf(b.Text[:b.Selection.End]) left, right := font.WidthOf(b.Text[:b.Selection.Start]), font.WidthOf(b.Text[:b.Selection.End])
renderer.FillRectangle(geom.RectF32(left, 0, right, size.Y), style.Palette.PrimaryHighlight) renderer.FillRectangle(geom.RectF32(left, 0, right, size.Y), style.Palette.PrimaryHighlight)