118 lines
3.7 KiB
Go
118 lines
3.7 KiB
Go
package ui
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import (
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"image/color"
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"testing"
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"fyne.io/fyne/v2"
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"fyne.io/fyne/v2/test"
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"fyne.io/fyne/v2/theme"
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)
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// isGray 判断颜色是否是无彩度的灰度色。
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func isGray(c color.Color) bool {
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n := color.NRGBAModel.Convert(c).(color.NRGBA)
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return n.R == n.G && n.G == n.B
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}
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func TestThemeLabelRoundTrip(t *testing.T) {
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for _, mode := range []string{ThemeSystem, ThemeContrast, ThemeLight} {
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label := themeLabel(mode)
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if got := themeFromLabel(label); got != mode {
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t.Fatalf("主题 %q 的中文名 %q 反查应为 %q，实际 %q", mode, label, mode, got)
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}
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}
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if got := themeFromLabel("不存在的名字"); got != ThemeSystem {
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t.Fatalf("未知中文名应回落到 %q，实际 %q", ThemeSystem, got)
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}
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if len(themeOptions()) != 3 {
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t.Fatalf("主题下拉应有 3 个选项，实际 %v", themeOptions())
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}
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}
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func TestDarkPaletteIsPureBlackOnWhite(t *testing.T) {
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p := darkPalette()
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black := color.NRGBA{R: 0, G: 0, B: 0, A: 0xFF}
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white := color.NRGBA{R: 0xFF, G: 0xFF, B: 0xFF, A: 0xFF}
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if got := p[theme.ColorNameBackground]; got != black {
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t.Fatalf("黑白主题背景应为纯黑，实际 %v", got)
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}
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if got := p[theme.ColorNameForeground]; got != white {
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t.Fatalf("黑白主题文字应为纯白，实际 %v", got)
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}
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for name, c := range p {
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if !isGray(c) {
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t.Fatalf("黑白主题不应出现彩色：%s = %v", name, c)
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}
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}
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}
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func TestLightPaletteIsPureWhiteOnBlack(t *testing.T) {
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p := lightPalette()
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black := color.NRGBA{R: 0, G: 0, B: 0, A: 0xFF}
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white := color.NRGBA{R: 0xFF, G: 0xFF, B: 0xFF, A: 0xFF}
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if got := p[theme.ColorNameBackground]; got != white {
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t.Fatalf("浅色主题背景应为纯白，实际 %v", got)
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}
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if got := p[theme.ColorNameForeground]; got != black {
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t.Fatalf("浅色主题文字应为纯黑，实际 %v", got)
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}
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for name, c := range p {
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if !isGray(c) {
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t.Fatalf("浅色高对比主题不应出现彩色：%s = %v", name, c)
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}
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}
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}
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func TestMonoThemeFallsBackToDefault(t *testing.T) {
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th := newMonoTheme(darkPalette())
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black := color.NRGBA{R: 0, G: 0, B: 0, A: 0xFF}
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// 调色板里有的走调色板。
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if got := th.Color(theme.ColorNameBackground, theme.VariantDark); got != black {
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t.Fatalf("背景色应取自调色板，实际 %v", got)
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}
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// 调色板里没有的沿用默认主题。
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if got := th.Color(theme.ColorNameOverlayBackground, theme.VariantDark); got == nil {
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t.Fatal("未覆盖的颜色名应回落到默认主题")
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}
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if th.Font(fyne.TextStyle{}) == nil || th.Size(theme.SizeNamePadding) <= 0 {
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t.Fatal("字体与尺寸应沿用默认主题")
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}
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}
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func TestApplyThemeModeSwitchesTheme(t *testing.T) {
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app := test.NewApp()
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black := color.NRGBA{R: 0, G: 0, B: 0, A: 0xFF}
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white := color.NRGBA{R: 0xFF, G: 0xFF, B: 0xFF, A: 0xFF}
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applyThemeMode(ThemeContrast)
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mt, ok := app.Settings().Theme().(*monoTheme)
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if !ok {
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t.Fatalf("黑白模式应切到 monoTheme，实际 %T", app.Settings().Theme())
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}
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if got := mt.Color(theme.ColorNameBackground, app.Settings().ThemeVariant()); got != black {
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t.Fatalf("黑白模式背景应为纯黑，实际 %v", got)
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}
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applyThemeMode(ThemeLight)
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mt, ok = app.Settings().Theme().(*monoTheme)
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if !ok {
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t.Fatalf("浅色模式应切到 monoTheme，实际 %T", app.Settings().Theme())
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}
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if got := mt.Color(theme.ColorNameBackground, app.Settings().ThemeVariant()); got != white {
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t.Fatalf("浅色模式背景应为纯白，实际 %v", got)
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}
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applyThemeMode(ThemeSystem)
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if _, ok := app.Settings().Theme().(*monoTheme); ok {
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t.Fatal("跟随系统应还原默认主题")
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}
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if got := app.Settings().Theme().Color(theme.ColorNameBackground, app.Settings().ThemeVariant()); got == nil {
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t.Fatal("默认主题应能取到背景色")
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}
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}
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