application.go

@@ -105,12 +105,10 @@ func (role ApplicationRole) Icon () tomo.Icon {
 // RunApplication is like tomo.Run, but runs an application. If something fails
 // to initialize, an error is written to the standard logger.
 func RunApplication (application Application) {
-	err := registrar.RegisterBackend()
+	err := registrar.Init()
-	if err != nil { log.Fatal("nasin: could not register backend:", err) }
+	if err != nil { log.Fatal("nasin: could not init registry:", err) }
 	err = tomo.Run(func () {
-		err := registrar.SetTheme()
+		err := application.Init()
-		if err != nil { log.Fatal("nasin: could not set theme:", err) }
-		err = application.Init()
 		if err != nil { log.Fatal("nasin: could not run application:", err) }
 	})
 	if err != nil { log.Fatal("nasin: could not run application:", err) }

go.mod

@@ -5,7 +5,7 @@ go 1.20
 require (
 	git.tebibyte.media/tomo/backend v0.3.0
 	git.tebibyte.media/tomo/objects v0.17.0
-	git.tebibyte.media/tomo/tomo v0.38.0
+	git.tebibyte.media/tomo/tomo v0.36.0
 	git.tebibyte.media/tomo/xdg v0.1.0
 	golang.org/x/image v0.11.0
 )

go.sum

@@ -3,8 +3,8 @@ git.tebibyte.media/tomo/backend v0.3.0 h1:YFy826xA8I473aUsEpn3ZRACEMfnd5WB+1ZgV1
 git.tebibyte.media/tomo/backend v0.3.0/go.mod h1:7FTMMVDlyNEMY+HwogG24kDsnREEIevya+0AjVRFyv0=
 git.tebibyte.media/tomo/objects v0.17.0 h1:MykZmSiRje/a4CfI3LcXPoUvJFYNHOGGAUAiWsRGONQ=
 git.tebibyte.media/tomo/objects v0.17.0/go.mod h1:U1UeBk4bfA30q2MBrdVZeldITTjTp8hiyJnnrqPpcZs=
-git.tebibyte.media/tomo/tomo v0.38.0 h1:K5TP67RxnszudeNfmGZiU5cFTRjFueXiI3NCsgw+05U=
+git.tebibyte.media/tomo/tomo v0.36.0 h1:V9vyPYb4kpUceBhcDF/XyLDACzE5lY8kYEGHAkIsqs0=
-git.tebibyte.media/tomo/tomo v0.38.0/go.mod h1:C9EzepS9wjkTJjnZaPBh22YvVPyA4hbBAJVU20Rdmps=
+git.tebibyte.media/tomo/tomo v0.36.0/go.mod h1:C9EzepS9wjkTJjnZaPBh22YvVPyA4hbBAJVU20Rdmps=
 git.tebibyte.media/tomo/typeset v0.7.1 h1:aZrsHwCG5ZB4f5CruRFsxLv5ezJUCFUFsQJJso2sXQ8=
 git.tebibyte.media/tomo/typeset v0.7.1/go.mod h1:PwDpSdBF3l/EzoIsa2ME7QffVVajnTHZN6l3MHEGe1g=
 git.tebibyte.media/tomo/xdg v0.1.0 h1:6G2WYPPiM2IXleCpKKHuJA34BxumwNWuLsUoX3yu5zA=

internal/registrar/registrar_unix.go

@@ -3,41 +3,36 @@ package registrar
 
 import "os"
 import "log"
-import "git.tebibyte.media/tomo/tomo"
 import "git.tebibyte.media/tomo/backend/x"
-import "git.tebibyte.media/tomo/nasin/internal/style"
+import "git.tebibyte.media/tomo/tomo"
-import "git.tebibyte.media/tomo/nasin/internal/icons/xdg"
+import dataTheme "git.tebibyte.media/tomo/nasin/internal/theme"
-import "git.tebibyte.media/tomo/nasin/internal/icons/fallback"
+import "git.tebibyte.media/tomo/nasin/internal/theme/icons/xdg"
-import "git.tebibyte.media/tomo/nasin/internal/style/fallback"
+import "git.tebibyte.media/tomo/nasin/internal/theme/icons/fallback"
-import "git.tebibyte.media/tomo/nasin/internal/style/aluminum"
+import "git.tebibyte.media/tomo/nasin/internal/theme/style/fallback"
+import "git.tebibyte.media/tomo/nasin/internal/theme/style/aluminum"
 
-func RegisterBackend () error {
+func Init () error {
-	tomo.Register(1, x.New)
+	var theme *dataTheme.Theme
-	return nil
-}
-
-func SetTheme () error {
-	var styl *style.Style
 	// TODO eventually get rid of this when we make a file format for
 	// storing visual styles
 	if os.Getenv("TOMO_USE_ALUMINUM_STYLE") != "" {
-		styl = aluminumStyle.New()
+		theme = aluminumStyle.New()
 	} else {
-		styl = fallbackStyle.New()
+		theme = fallbackStyle.New()
 	}
-	icons := fallbackIcons.New()
+	theme.IconTheme = fallbackIcons.New()
 	
 	iconThemeName := os.Getenv("TOMO_XDG_ICON_THEME")
 	if iconThemeName != "" {
-		xdgIconTheme, err := xdgIcons.FindThemeWarn(iconThemeName, icons)
+		iconTheme, err := xdgIcons.FindThemeWarn(iconThemeName, theme.IconTheme)
 		if err == nil {
-			icons = xdgIconTheme
+			theme.IconTheme = iconTheme
 		} else {
 			log.Printf("nasin: could not load icon theme '%s': %v", iconThemeName, err)
 		}
 	}
 	
-	tomo.SetStyle(styl)
+	tomo.SetTheme(theme)
-	tomo.SetIcons(icons)
+	tomo.Register(1, x.New)
-	return nil	
+	return nil
 }

internal/theme/attribute.go

@@ -1,4 +1,4 @@
-package style
+package theme
 
 import "image"
 import "image/color"

internal/theme/icons/fallback/icon.go

@@ -7,6 +7,7 @@ import _ "image/png"
 import "git.tebibyte.media/tomo/tomo"
 import "git.tebibyte.media/tomo/tomo/data"
 import "git.tebibyte.media/tomo/tomo/canvas"
+import dataTheme "git.tebibyte.media/tomo/nasin/internal/theme"
 
 //go:embed assets/icons-small.png
 var atlasSmallBytes []byte
@@ -417,7 +418,7 @@ type iconTheme struct {
 }
 
 // New creates a new fallback icon theme.
-func New () tomo.Icons {
+func New () dataTheme.IconTheme {
 	return new(iconTheme)
 }
 

internal/theme/icons/xdg/icon.go

@@ -11,16 +11,17 @@ import "git.tebibyte.media/tomo/tomo"
 import xdgIconTheme "git.tebibyte.media/tomo/xdg/icon-theme"
 import "git.tebibyte.media/tomo/tomo/data"
 import "git.tebibyte.media/tomo/tomo/canvas"
+import "git.tebibyte.media/tomo/nasin/internal/theme"
 
 type iconTheme struct {
 	xdg xdgIconTheme.Theme
-	fallback       tomo.Icons
+	fallback       theme.IconTheme
 	texturesSmall  map[tomo.Icon] canvas.Texture
 	texturesMedium map[tomo.Icon] canvas.Texture
 	texturesLarge  map[tomo.Icon] canvas.Texture
 }
 
-func FindThemeWarn (name string, fallback tomo.Icons, path ...string) (tomo.Icons, error) {
+func FindThemeWarn (name string, fallback theme.IconTheme, path ...string) (theme.IconTheme, error) {
 	this := &iconTheme {
 		fallback:       fallback,
 		texturesLarge:  make(map[tomo.Icon] canvas.Texture),

internal/theme/missing.go

@@ -1,4 +1,4 @@
-package style
+package theme
 
 import "image"
 import "image/color"

internal/theme/style/aluminum/aluminum.go

@@ -2,11 +2,11 @@ package aluminumStyle
 
 import "image/color"
 import "git.tebibyte.media/tomo/tomo"
-import "git.tebibyte.media/tomo/nasin/internal/style"
+import dataTheme "git.tebibyte.media/tomo/nasin/internal/theme"
 
 // New returns Aluminum, a futuristic, bluish-white style.
-func New () *style.Style {
+func New () *dataTheme.Theme {
-	return &style.Style {
+	return &dataTheme.Theme {
 		Colors: map[tomo.Color] color.Color {
 			tomo.ColorBackground: colorBackground,
 			tomo.ColorForeground: colorForeground,

internal/theme/style/aluminum/style.go

@@ -3,7 +3,7 @@ package aluminumStyle
 import "image/color"
 import "git.tebibyte.media/tomo/tomo"
 import "golang.org/x/image/font/basicfont"
-import "git.tebibyte.media/tomo/nasin/internal/style"
+import dataTheme "git.tebibyte.media/tomo/nasin/internal/theme"
 
 func hex (color uint32) (c color.RGBA) {
 	c.A = uint8(color)
@@ -62,66 +62,66 @@ var borderTearPadFocused = border(0x7391c080, 0x7391c080, 0x7391c080, 0x7391c080
 var borderInnerShadow    = border(0xa4afc0FF, 0xa4afc0FF, 0xa4afc0ff, 0xa4afc0ff, 1, 0, 0, 1)
 var borderOuterShadow    = border(0xa4afc0FF, 0xa4afc0FF, 0xa4afc0ff, 0xa4afc0ff, 0, 1, 1, 0)
 
-var rules = []style.Rule {
+var rules = []dataTheme.Rule {
 	// *.*[*]
-	style.Rule {
+	dataTheme.Rule {
-		Default: style.AS (
+		Default: dataTheme.AS (
-			style.AttrFace      { Face:  basicfont.Face7x13    },
+			dataTheme.AttrFace      { Face:  basicfont.Face7x13    },
-			style.AttrTextColor { Color: tomo.ColorForeground  },
+			dataTheme.AttrTextColor { Color: tomo.ColorForeground  },
-			style.AttrDotColor  { Color: colorDot              },
+			dataTheme.AttrDotColor  { Color: colorDot              },
-			style.AttrGap       { X: 8, Y: 8                   },
+			dataTheme.AttrGap       { X: 8, Y: 8                   },
 		),
 	},
 
 	// *.Button[*]
-	style.Rule {
+	dataTheme.Rule {
 		Role: tomo.R("", "Button", ""),
-		Default: style.AS (
+		Default: dataTheme.AS (
-			style.AttrBorder {
+			dataTheme.AttrBorder {
 				borderEngraved,
 				borderGap,
 				borderLifted,
 			},
-			style.AttrPadding(tomo.I(4, 8)),
+			dataTheme.AttrPadding(tomo.I(4, 8)),
-			style.AttrColor { Color: tomo.ColorRaised },
+			dataTheme.AttrColor { Color: tomo.ColorRaised },
 		),
-		Pressed: style.AS (
+		Pressed: dataTheme.AS (
-			style.AttrBorder {
+			dataTheme.AttrBorder {
 				borderEngraved,
 				borderGap,
 				borderInnerShadow,
 			},
-			style.AttrPadding(tomo.I(5, 8, 4, 9)),
+			dataTheme.AttrPadding(tomo.I(5, 8, 4, 9)),
-			style.AttrColor { Color: colorRaisedPressed },
+			dataTheme.AttrColor { Color: colorRaisedPressed },
 		),
-		Focused: style.AS (
+		Focused: dataTheme.AS (
-			style.AttrBorder {
+			dataTheme.AttrBorder {
 				borderEngraved,
 				borderGap,
 				borderLiftedFocused,
 			},
-			style.AttrPadding(tomo.I(4, 8)),
+			dataTheme.AttrPadding(tomo.I(4, 8)),
-			style.AttrColor { Color: colorRaisedFocused },
+			dataTheme.AttrColor { Color: colorRaisedFocused },
 		),
-		Hovered: style.AS (
+		Hovered: dataTheme.AS (
-			style.AttrColor { Color: colorRaisedHovered },
+			dataTheme.AttrColor { Color: colorRaisedHovered },
 		),
 	},
 
 	// *.TextInput[*]
-	style.Rule {
+	dataTheme.Rule {
 		Role: tomo.R("", "TextInput", ""),
-		Default: style.AS (
+		Default: dataTheme.AS (
-			style.AttrBorder {
+			dataTheme.AttrBorder {
 				borderEngraved,
 				borderGap,
 				borderInnerShadow,
 			},
-			style.AttrColor { Color: tomo.ColorSunken },
+			dataTheme.AttrColor { Color: tomo.ColorSunken },
-			style.AttrPadding(tomo.I(5, 4, 4, 5)),
+			dataTheme.AttrPadding(tomo.I(5, 4, 4, 5)),
 		),
-		Focused: style.AS (
+		Focused: dataTheme.AS (
-			style.AttrBorder {
+			dataTheme.AttrBorder {
 				borderEngraved,
 				borderFocused,
 				borderInnerShadow,
@@ -130,206 +130,206 @@ var rules = []style.Rule {
 	},
 
 	// *.TextView[*]
-	style.Rule {
+	dataTheme.Rule {
 		Role: tomo.R("", "TextView", ""),
-		Default: style.AS (
+		Default: dataTheme.AS (
-			style.AttrBorder {
+			dataTheme.AttrBorder {
 				borderEngraved,
 				borderGap,
 				borderInnerShadow,
 			},
-			style.AttrColor { Color: tomo.ColorSunken },
+			dataTheme.AttrColor { Color: tomo.ColorSunken },
-			style.AttrPadding(tomo.I(8)),
+			dataTheme.AttrPadding(tomo.I(8)),
 		),
 	},
 	
 	// *.NumberInput[*]
-	style.Rule {
+	dataTheme.Rule {
 		Role: tomo.R("", "NumberInput", ""),
-		Default: style.AS (
+		Default: dataTheme.AS (
-			style.AttrGap { },
+			dataTheme.AttrGap { },
 		),
 	},
 
 	// *.Container[sunken]
-	style.Rule {
+	dataTheme.Rule {
 		Role: tomo.R("", "Container", "sunken"),
-		Default: style.AS (
+		Default: dataTheme.AS (
-			style.AttrBorder {
+			dataTheme.AttrBorder {
 				borderEngraved,
 				borderGap,
 				borderInnerShadow,
 			},
-			style.AttrColor { Color: tomo.ColorSunken },
+			dataTheme.AttrColor { Color: tomo.ColorSunken },
-			style.AttrPadding(tomo.I(8)),
+			dataTheme.AttrPadding(tomo.I(8)),
 		),
 	},
 
 	// *.Container[outer]
-	style.Rule {
+	dataTheme.Rule {
 		Role: tomo.R("", "Container", "outer"),
-		Default: style.AS (
+		Default: dataTheme.AS (
-			style.AttrColor { Color: tomo.ColorBackground },
+			dataTheme.AttrColor { Color: tomo.ColorBackground },
-			style.AttrPadding(tomo.I(8)),
+			dataTheme.AttrPadding(tomo.I(8)),
 		),
 	},
 
 	// *.Container[menu]
-	style.Rule {
+	dataTheme.Rule {
 		Role: tomo.R("", "Container", "menu"),
-		Default: style.AS (
+		Default: dataTheme.AS (
-			style.AttrBorder {
+			dataTheme.AttrBorder {
 				borderGap,
 				borderLifted,
 			},
-			style.AttrColor { Color: tomo.ColorBackground },
+			dataTheme.AttrColor { Color: tomo.ColorBackground },
-			style.AttrGap { },
+			dataTheme.AttrGap { },
 		),
 	},
 
 	// *.Heading[*]
-	style.Rule {
+	dataTheme.Rule {
 		Role: tomo.R("", "Heading", ""),
-		Default: style.AS (
+		Default: dataTheme.AS (
-			style.AttrAlign { X: tomo.AlignMiddle, Y: tomo.AlignMiddle },
+			dataTheme.AttrAlign { X: tomo.AlignMiddle, Y: tomo.AlignMiddle },
 		),
 	},
 
 	// *.Separator[*]
-	style.Rule {
+	dataTheme.Rule {
 		Role: tomo.R("", "Separator", ""),
-		Default: style.AS (
+		Default: dataTheme.AS (
-			style.AttrBorder {
+			dataTheme.AttrBorder {
 				borderEngraved,
 			},
 		),
 	},
 
 	// *.Slider[*]
-	style.Rule {
+	dataTheme.Rule {
 		Role: tomo.R("", "Slider", ""),
-		Default: style.AS (
+		Default: dataTheme.AS (
-			style.AttrBorder {
+			dataTheme.AttrBorder {
 				borderEngraved,
 				borderGap,
 				borderInnerShadow,
 			},
-			style.AttrColor { Color: colorGutter },
+			dataTheme.AttrColor { Color: colorGutter },
 		),
-		Focused: style.AS (
+		Focused: dataTheme.AS (
-			style.AttrBorder {
+			dataTheme.AttrBorder {
 				borderEngraved,
 				borderFocused,
 				borderInnerShadow,
 			},
 		),
-		Hovered: style.AS (
+		Hovered: dataTheme.AS (
-			style.AttrColor { Color: colorGutterHovered },
+			dataTheme.AttrColor { Color: colorGutterHovered },
 		),
 	},
 	
 	// *.Slider[horizontal]
-	style.Rule {
+	dataTheme.Rule {
 		Role: tomo.R("", "Slider", "horizontal"),
-		Default: style.AS(style.AttrMinimumSize { X: 48 }),
+		Default: dataTheme.AS(dataTheme.AttrMinimumSize { X: 48 }),
 	},
 	
 	// *.Slider[vertical]
-	style.Rule {
+	dataTheme.Rule {
 		Role: tomo.R("", "Slider", "vertical"),
-		Default: style.AS(style.AttrMinimumSize { Y: 48 }),
+		Default: dataTheme.AS(dataTheme.AttrMinimumSize { Y: 48 }),
 	},
 
 	// *.SliderHandle[*]
-	style.Rule {
+	dataTheme.Rule {
 		Role: tomo.R("", "SliderHandle", ""),
-		Default: style.AS (
+		Default: dataTheme.AS (
-			style.AttrBorder {
+			dataTheme.AttrBorder {
 				borderOuterShadow,
 				borderGap,
 				borderLifted,
 			},
-			style.AttrColor { Color: tomo.ColorRaised },
+			dataTheme.AttrColor { Color: tomo.ColorRaised },
-			style.AttrMinimumSize { X: 12, Y: 12, },
+			dataTheme.AttrMinimumSize { X: 12, Y: 12, },
 		),
 	},
 
 	// *.Checkbox[*]
-	style.Rule {
+	dataTheme.Rule {
 		Role: tomo.R("", "Checkbox", ""),
-		Default: style.AS (
+		Default: dataTheme.AS (
-			style.AttrBorder {
+			dataTheme.AttrBorder {
 				borderEngraved,
 				borderGap,
 				borderInnerShadow,
 			},
-			style.AttrColor { Color: tomo.ColorSunken },
+			dataTheme.AttrColor { Color: tomo.ColorSunken },
-			style.AttrPadding(tomo.I(0, 1, 1, 0)),
+			dataTheme.AttrPadding(tomo.I(0, 1, 1, 0)),
-			style.AttrMinimumSize { X: 19, Y: 19 },
+			dataTheme.AttrMinimumSize { X: 19, Y: 19 },
 		),
-		Focused: style.AS (
+		Focused: dataTheme.AS (
-			style.AttrBorder {
+			dataTheme.AttrBorder {
 				borderEngraved,
 				borderFocused,
 				borderInnerShadow,
 			},
-			style.AttrPadding(tomo.I(0)),
+			dataTheme.AttrPadding(tomo.I(0)),
-			style.AttrColor { Color: colorSunkenFocused },
+			dataTheme.AttrColor { Color: colorSunkenFocused },
 		),
 	},
 
 	// *.LabelCheckbox[*]
-	style.Rule {
+	dataTheme.Rule {
 		Role: tomo.R("", "LabelCheckbox", ""),
-		Default: style.AS (
+		Default: dataTheme.AS (
-			style.AttrGap { X: 8, Y: 8 },
+			dataTheme.AttrGap { X: 8, Y: 8 },
 		),
 	},
 
 	// *.MenuItem[*]
-	style.Rule {
+	dataTheme.Rule {
 		Role: tomo.R("", "MenuItem", ""),
-		Default: style.AS (
+		Default: dataTheme.AS (
-			style.AttrPadding(tomo.I(4)),
+			dataTheme.AttrPadding(tomo.I(4)),
-			style.AttrGap { X: 4, Y: 4 },
+			dataTheme.AttrGap { X: 4, Y: 4 },
-			style.AttrColor { Color: color.Transparent },
+			dataTheme.AttrColor { Color: color.Transparent },
 		),
-		Hovered: style.AS (
+		Hovered: dataTheme.AS (
-			style.AttrColor { Color: colorDot },
+			dataTheme.AttrColor { Color: colorDot },
 		),
-		Focused: style.AS (
+		Focused: dataTheme.AS (
-			style.AttrColor { Color: colorDot },
+			dataTheme.AttrColor { Color: colorDot },
 		),
 	},
 
 	// *.File[*]
-	style.Rule {
+	dataTheme.Rule {
 		Role: tomo.R("", "File", ""),
-		Default: style.AS (
+		Default: dataTheme.AS (
-			style.AttrColor { Color: color.Transparent },
+			dataTheme.AttrColor { Color: color.Transparent },
 		),
-		Focused: style.AS (
+		Focused: dataTheme.AS (
-			style.AttrColor { Color: colorDot },
+			dataTheme.AttrColor { Color: colorDot },
 		),
 	},
 	
 	// *.TearLine[*]
-	style.Rule {
+	dataTheme.Rule {
 		Role: tomo.R("", "TearLine", ""),
-		Default: style.AS (
+		Default: dataTheme.AS (
-			style.AttrBorder {
+			dataTheme.AttrBorder {
 				borderTearPad,
 				borderTear,
 			},
 		),
-		Hovered: style.AS (
+		Hovered: dataTheme.AS (
-			style.AttrBorder {
+			dataTheme.AttrBorder {
 				borderTearPadFocused,
 				borderTearFocused,
 			},
 		),
-		Focused: style.AS (
+		Focused: dataTheme.AS (
-			style.AttrBorder {
+			dataTheme.AttrBorder {
 				borderTearPadFocused,
 				borderTearFocused,
 			},

internal/theme/style/fallback/style.go

@@ -3,7 +3,7 @@ package fallbackStyle
 import "image/color"
 import "git.tebibyte.media/tomo/tomo"
 import "golang.org/x/image/font/basicfont"
-import "git.tebibyte.media/tomo/nasin/internal/style"
+import dataTheme "git.tebibyte.media/tomo/nasin/internal/theme"
 
 var colorFocus         = color.RGBA { R:  61, G: 128, B: 143, A: 255 }
 var colorInput         = color.RGBA { R: 208, G: 203, B: 150, A: 255 }
@@ -32,70 +32,70 @@ var borderColorLifted   = [4]color.Color { colorHighlight,   colorShadow,    col
 var borderColorInput    = [4]color.Color { colorInputShadow, colorInput,     colorInput,     colorInputShadow }
 var borderColorFocused  = [4]color.Color { colorFocus,       colorFocus,     colorFocus,     colorFocus }
 
-var rules = []style.Rule {
+var rules = []dataTheme.Rule {
 	// *.*[*]
-	style.Rule {
+	dataTheme.Rule {
-		Default: style.AS (
+		Default: dataTheme.AS (
-			style.AttrFace      { Face:  basicfont.Face7x13    },
+			dataTheme.AttrFace      { Face:  basicfont.Face7x13    },
-			style.AttrTextColor { Color: tomo.ColorForeground  },
+			dataTheme.AttrTextColor { Color: tomo.ColorForeground  },
-			style.AttrDotColor  { Color: tomo.ColorAccent      },
+			dataTheme.AttrDotColor  { Color: tomo.ColorAccent      },
-			style.AttrGap       { X: 8, Y: 8                   },
+			dataTheme.AttrGap       { X: 8, Y: 8                   },
 		),
 	},
 
 	// *.Button[*]
-	style.Rule {
+	dataTheme.Rule {
 		Role: tomo.R("", "Button", ""),
-		Default: style.AS (
+		Default: dataTheme.AS (
-			style.AttrBorder {
+			dataTheme.AttrBorder {
 				outline,
 				tomo.Border {
 					Width: tomo.I(1),
 					Color: borderColorLifted,
 				},
 			},
-			style.AttrPadding(tomo.I(4, 8)),
+			dataTheme.AttrPadding(tomo.I(4, 8)),
-			style.AttrColor { Color: tomo.ColorRaised },
+			dataTheme.AttrColor { Color: tomo.ColorRaised },
 		),
-		Pressed: style.AS (
+		Pressed: dataTheme.AS (
-			style.AttrBorder {
+			dataTheme.AttrBorder {
 				outline,
 				tomo.Border {
 					Width: tomo.I(1, 0, 0, 1),
 					Color: borderColorEngraved,
 				},
 			},
-			style.AttrPadding(tomo.I(5, 8, 4, 9)),
+			dataTheme.AttrPadding(tomo.I(5, 8, 4, 9)),
-			style.AttrColor { Color: colorCarvedPressed },
+			dataTheme.AttrColor { Color: colorCarvedPressed },
 		),
-		Focused: style.AS (
+		Focused: dataTheme.AS (
-			style.AttrBorder {
+			dataTheme.AttrBorder {
 				outline,
 				tomo.Border {
 					Width: tomo.I(1),
 					Color: borderColorFocused,
 				},
 			},
-			style.AttrPadding(tomo.I(4, 8)),
+			dataTheme.AttrPadding(tomo.I(4, 8)),
 		),
 	},
 
 	// *.TextInput[*]
-	style.Rule {
+	dataTheme.Rule {
 		Role: tomo.R("", "TextInput", ""),
-		Default: style.AS (
+		Default: dataTheme.AS (
-			style.AttrBorder {
+			dataTheme.AttrBorder {
 				outline,
 				tomo.Border {
 					Width: tomo.I(1),
 					Color: borderColorInput,
 				},
 			},
-			style.AttrColor { Color: colorInput },
+			dataTheme.AttrColor { Color: colorInput },
-			style.AttrPadding(tomo.I(5, 4, 4, 5)),
+			dataTheme.AttrPadding(tomo.I(5, 4, 4, 5)),
 		),
-		Focused: style.AS (
+		Focused: dataTheme.AS (
-			style.AttrBorder {
+			dataTheme.AttrBorder {
 				outline,
 				tomo.Border {
 					Width: tomo.I(1),
@@ -106,83 +106,83 @@ var rules = []style.Rule {
 	},
 
 	// *.TextView[*]
-	style.Rule {
+	dataTheme.Rule {
 		Role: tomo.R("", "TextView", ""),
-		Default: style.AS (
+		Default: dataTheme.AS (
-			style.AttrBorder {
+			dataTheme.AttrBorder {
 				outline,
 				tomo.Border {
 					Width: tomo.I(1, 0, 0, 1),
 					Color: borderColorEngraved,
 				},
 			},
-			style.AttrColor { Color: tomo.ColorSunken },
+			dataTheme.AttrColor { Color: tomo.ColorSunken },
-			style.AttrPadding(tomo.I(8)),
+			dataTheme.AttrPadding(tomo.I(8)),
 		),
 	},
 	
 	// *.NumberInput[*]
-	style.Rule {
+	dataTheme.Rule {
 		Role: tomo.R("", "NumberInput", ""),
-		Default: style.AS (
+		Default: dataTheme.AS (
-			style.AttrGap { },
+			dataTheme.AttrGap { },
 		),
 	},
 
 	// *.Container[sunken]
-	style.Rule {
+	dataTheme.Rule {
 		Role: tomo.R("", "Container", "sunken"),
-		Default: style.AS (
+		Default: dataTheme.AS (
-			style.AttrBorder {
+			dataTheme.AttrBorder {
 				outline,
 				tomo.Border {
 					Width: tomo.I(1, 0, 0, 1),
 					Color: borderColorEngraved,
 				},
 			},
-			style.AttrColor { Color: tomo.ColorSunken },
+			dataTheme.AttrColor { Color: tomo.ColorSunken },
-			style.AttrPadding(tomo.I(8)),
+			dataTheme.AttrPadding(tomo.I(8)),
 		),
 	},
 
 	// *.Container[outer]
-	style.Rule {
+	dataTheme.Rule {
 		Role: tomo.R("", "Container", "outer"),
-		Default: style.AS (
+		Default: dataTheme.AS (
-			style.AttrColor { Color: tomo.ColorBackground },
+			dataTheme.AttrColor { Color: tomo.ColorBackground },
-			style.AttrPadding(tomo.I(8)),
+			dataTheme.AttrPadding(tomo.I(8)),
 		),
 	},
 
 	// *.Container[menu]
-	style.Rule {
+	dataTheme.Rule {
 		Role: tomo.R("", "Container", "menu"),
-		Default: style.AS (
+		Default: dataTheme.AS (
-			style.AttrBorder {
+			dataTheme.AttrBorder {
 				outline,
 				tomo.Border {
 					Width: tomo.I(1),
 					Color: borderColorLifted,
 				},
 			},
-			style.AttrColor { Color: tomo.ColorBackground },
+			dataTheme.AttrColor { Color: tomo.ColorBackground },
-			style.AttrGap { },
+			dataTheme.AttrGap { },
 		),
 	},
 
 	// *.Heading[*]
-	style.Rule {
+	dataTheme.Rule {
 		Role: tomo.R("", "Heading", ""),
-		Default: style.AS (
+		Default: dataTheme.AS (
-			style.AttrAlign { X: tomo.AlignMiddle, Y: tomo.AlignMiddle },
+			dataTheme.AttrAlign { X: tomo.AlignMiddle, Y: tomo.AlignMiddle },
 		),
 	},
 
 	// *.Separator[*]
-	style.Rule {
+	dataTheme.Rule {
 		Role: tomo.R("", "Separator", ""),
-		Default: style.AS (
+		Default: dataTheme.AS (
-			style.AttrBorder {
+			dataTheme.AttrBorder {
 				tomo.Border {
 					Width: tomo.I(1),
 					Color: borderColorEngraved,
@@ -192,126 +192,126 @@ var rules = []style.Rule {
 	},
 
 	// *.Slider[*]
-	style.Rule {
+	dataTheme.Rule {
 		Role: tomo.R("", "Slider", ""),
-		Default: style.AS (
+		Default: dataTheme.AS (
-			style.AttrBorder {
+			dataTheme.AttrBorder {
 				outline,
 				tomo.Border {
 					Width: tomo.I(1, 0, 0, 1),
 					Color: borderColorEngraved,
 				},
 			},
-			style.AttrColor { Color: colorGutter },
+			dataTheme.AttrColor { Color: colorGutter },
-			style.AttrPadding(tomo.I(0, 1, 1, 0)),
+			dataTheme.AttrPadding(tomo.I(0, 1, 1, 0)),
 		),
-		Focused: style.AS (
+		Focused: dataTheme.AS (
-			style.AttrBorder {
+			dataTheme.AttrBorder {
 				outline,
 				tomo.Border {
 					Width: tomo.I(1),
 					Color: borderColorFocused,
 				},
 			},
-			style.AttrPadding(tomo.I(0)),
+			dataTheme.AttrPadding(tomo.I(0)),
 		),
 	},
 	
 	// *.Slider[horizontal]
-	style.Rule {
+	dataTheme.Rule {
 		Role: tomo.R("", "Slider", "horizontal"),
-		Default: style.AS(style.AttrMinimumSize { X: 48 }),
+		Default: dataTheme.AS(dataTheme.AttrMinimumSize { X: 48 }),
 	},
 	
 	// *.Slider[vertical]
-	style.Rule {
+	dataTheme.Rule {
 		Role: tomo.R("", "Slider", "vertical"),
-		Default: style.AS(style.AttrMinimumSize { Y: 48 }),
+		Default: dataTheme.AS(dataTheme.AttrMinimumSize { Y: 48 }),
 	},
 
 	// *.SliderHandle[*]
-	style.Rule {
+	dataTheme.Rule {
 		Role: tomo.R("", "SliderHandle", ""),
-		Default: style.AS (
+		Default: dataTheme.AS (
-			style.AttrBorder {
+			dataTheme.AttrBorder {
 				outline,
 				tomo.Border {
 					Width: tomo.I(1),
 					Color: borderColorLifted,
 				},
 			},
-			style.AttrColor { Color: tomo.ColorRaised },
+			dataTheme.AttrColor { Color: tomo.ColorRaised },
-			style.AttrMinimumSize { X: 12, Y: 12, },
+			dataTheme.AttrMinimumSize { X: 12, Y: 12, },
 		),
 	},
 
 	// *.Checkbox[*]
-	style.Rule {
+	dataTheme.Rule {
 		Role: tomo.R("", "Checkbox", ""),
-		Default: style.AS (
+		Default: dataTheme.AS (
-			style.AttrBorder {
+			dataTheme.AttrBorder {
 				outline,
 				tomo.Border {
 					Width: tomo.I(1, 0, 0, 1),
 					Color: borderColorEngraved,
 				},
 			},
-			style.AttrColor { Color: tomo.ColorSunken },
+			dataTheme.AttrColor { Color: tomo.ColorSunken },
-			style.AttrPadding(tomo.I(0, 1, 1, 0)),
+			dataTheme.AttrPadding(tomo.I(0, 1, 1, 0)),
-			style.AttrMinimumSize { X: 19, Y: 19 },
+			dataTheme.AttrMinimumSize { X: 19, Y: 19 },
 		),
-		Focused: style.AS (
+		Focused: dataTheme.AS (
-			style.AttrBorder {
+			dataTheme.AttrBorder {
 				outline,
 				tomo.Border {
 					Width: tomo.I(1),
 					Color: borderColorFocused,
 				},
 			},
-			style.AttrPadding(tomo.I(0)),
+			dataTheme.AttrPadding(tomo.I(0)),
 		),
 	},
 
 	// *.LabelCheckbox[*]
-	style.Rule {
+	dataTheme.Rule {
 		Role: tomo.R("", "LabelCheckbox", ""),
-		Default: style.AS (
+		Default: dataTheme.AS (
-			style.AttrGap { X: 8, Y: 8 },
+			dataTheme.AttrGap { X: 8, Y: 8 },
 		),
 	},
 
 	// *.MenuItem[*]
-	style.Rule {
+	dataTheme.Rule {
 		Role: tomo.R("", "MenuItem", ""),
-		Default: style.AS (
+		Default: dataTheme.AS (
-			style.AttrPadding(tomo.I(4)),
+			dataTheme.AttrPadding(tomo.I(4)),
-			style.AttrGap { X: 4, Y: 4 },
+			dataTheme.AttrGap { X: 4, Y: 4 },
-			style.AttrColor { Color: color.Transparent },
+			dataTheme.AttrColor { Color: color.Transparent },
 		),
-		Hovered: style.AS (
+		Hovered: dataTheme.AS (
-			style.AttrColor { Color: tomo.ColorAccent },
+			dataTheme.AttrColor { Color: tomo.ColorAccent },
 		),
-		Focused: style.AS (
+		Focused: dataTheme.AS (
-			style.AttrColor { Color: tomo.ColorAccent },
+			dataTheme.AttrColor { Color: tomo.ColorAccent },
 		),
 	},
 
 	// *.File[*]
-	style.Rule {
+	dataTheme.Rule {
 		Role: tomo.R("", "File", ""),
-		Default: style.AS (
+		Default: dataTheme.AS (
-			style.AttrColor { Color: color.Transparent },
+			dataTheme.AttrColor { Color: color.Transparent },
 		),
-		Focused: style.AS (
+		Focused: dataTheme.AS (
-			style.AttrColor { Color: tomo.ColorAccent },
+			dataTheme.AttrColor { Color: tomo.ColorAccent },
 		),
 	},
 
 	// *.TearLine[*]
-	style.Rule {
+	dataTheme.Rule {
 		Role: tomo.R("", "TearLine", ""),
-		Default: style.AS (
+		Default: dataTheme.AS (
-			style.AttrBorder {
+			dataTheme.AttrBorder {
 				tomo.Border {
 					Width: tomo.I(3),
 					Color: [4]color.Color {
@@ -322,19 +322,19 @@ var rules = []style.Rule {
 					},
 				},
 			},
-			style.AttrColor { Color: tomo.ColorForeground },
+			dataTheme.AttrColor { Color: tomo.ColorForeground },
-			style.AttrPadding(tomo.I(1, 0, 0, 1)),
+			dataTheme.AttrPadding(tomo.I(1, 0, 0, 1)),
 		),
-		Hovered: style.AS (
+		Hovered: dataTheme.AS (
-			style.AttrBorder {
+			dataTheme.AttrBorder {
 				tomo.Border {
 					Width: tomo.I(3),
 					Color: borderColorFocused,
 				},
 			},
 		),
-		Focused: style.AS (
+		Focused: dataTheme.AS (
-			style.AttrBorder {
+			dataTheme.AttrBorder {
 				tomo.Border {
 					Width: tomo.I(3),
 					Color: borderColorFocused,

internal/theme/style/fallback/wintergreen.go

@@ -2,12 +2,12 @@ package fallbackStyle
 
 import "image/color"
 import "git.tebibyte.media/tomo/tomo"
-import "git.tebibyte.media/tomo/nasin/internal/style"
+import dataTheme "git.tebibyte.media/tomo/nasin/internal/theme"
 
-// New returns Wintergreen, the default Tomo style. It is neutral-gray with
+// New returns Wintergreen, the default Tomo tomo. It is neutral-gray with green
-// green and turquoise accents.
+// and turquoise accents.
-func New () *style.Style {
+func New () *dataTheme.Theme {
-	return &style.Style {
+	return &dataTheme.Theme {
 		Colors: map[tomo.Color] color.Color {
 			tomo.ColorBackground: colorBackground,
 			tomo.ColorForeground: colorForeground,

internal/theme/theme.go

@@ -1,17 +1,18 @@
-// Package style provides a data-driven style implementation.
+// Package theme provides a data-driven theme implementation.
-package style
+package theme
 
 import "image"
 import "image/color"
 import "git.tebibyte.media/tomo/tomo"
+import "git.tebibyte.media/tomo/tomo/data"
 import "git.tebibyte.media/tomo/tomo/event"
 import "git.tebibyte.media/tomo/tomo/input"
 import "git.tebibyte.media/tomo/tomo/canvas"
 
 // this is CSS's bastard child
 
-// Style allows the use of data to define a visual style.
+// Theme allows the use of data to define a visual style.
-type Style struct {
+type Theme struct {
 	// Textures maps texture names to image textures.
 	Textures map[string] image.Image
 	textures map[string] canvas.TextureCloser // private texture cache
@@ -22,6 +23,18 @@ type Style struct {
 
 	// Colors maps tomo.Color values to color.RGBA values.
 	Colors map[tomo.Color] color.Color
+
+	// This type does not handle icons, and as such, a special icon theme
+	// must be separately specified.
+	IconTheme
+}
+
+// IconTheme implements the part of tomo.Theme that handles icons.
+type IconTheme interface {
+	// Icon returns a texture of the corresponding icon ID.
+	Icon (tomo.Icon, tomo.IconSize) canvas.Texture
+	// MimeIcon returns an icon corresponding to a MIME type.
+	MimeIcon (data.Mime, tomo.IconSize) canvas.Texture
 }
 
 // Rule describes under what circumstances should certain style attributes be
@@ -83,7 +96,7 @@ func (this *AttrSet) ensure () {
 	if this.set == nil { this.set = make(map[int] Attr) }
 }
 
-func (this *Style) execute (object tomo.Object, set AttrSet) {
+func (this *Theme) execute (object tomo.Object, set AttrSet) {
 	box := object.GetBox()
 	
 	for _, attr := range set.set {
@@ -124,7 +137,7 @@ func (this *Style) execute (object tomo.Object, set AttrSet) {
 	}
 }
 
-func (this *Style) texture (name string) canvas.Texture {
+func (this *Theme) texture (name string) canvas.Texture {
 	this.ensureTextureCache()
 	if texture, ok := this.textures[name]; ok {
 		return texture
@@ -139,19 +152,19 @@ func (this *Style) texture (name string) canvas.Texture {
 	return this.missingTexture()
 }
 
-func (this *Style) missingTexture () canvas.Texture {
+func (this *Theme) missingTexture () canvas.Texture {
 	if this.missing == nil {
 		this.missing = tomo.NewTexture(missingTexture(16))
 	}
 	return this.missing
 }
 
-func (this *Style) ensureTextureCache () {
+func (this *Theme) ensureTextureCache () {
 	if this.textures == nil { this.textures = make(map[string] canvas.TextureCloser) }
 }
 
 // setsFor builds flattened attr sets for a specific role based on the rules list
-func (this *Style) setsFor (role tomo.Role) (defaul, hovered, pressed, focused AttrSet) {
+func (this *Theme) setsFor (role tomo.Role) (defaul, hovered, pressed, focused AttrSet) {
 	for _, current := range this.Rules {
 		// check for a match
 		packageMatch := current.Role.Package == role.Package || current.Role.Package == ""
@@ -173,7 +186,7 @@ func (this *Style) setsFor (role tomo.Role) (defaul, hovered, pressed, focused A
 	return defaul, hovered, pressed, focused
 }
 
-func (this *Style) Apply (object tomo.Object) event.Cookie {
+func (this *Theme) Apply (object tomo.Object) event.Cookie {
 	pressed := false
 	hovered := false
 	box  := object.GetBox()
@@ -219,16 +232,32 @@ func (this *Style) Apply (object tomo.Object) event.Cookie {
 
 }
 
-func (this *Style) RGBA (c tomo.Color) (r, g, b, a uint32) {
+func (this *Theme) RGBA (c tomo.Color) (r, g, b, a uint32) {
 	if this.Colors == nil { return 0xFFFF, 0, 0xFFFF, 0xFFFF }
 	color, ok := this.Colors[c]
 	if !ok { return 0xFFFF, 0, 0xFFFF, 0xFFFF }
 	return color.RGBA()
 }
 
-// Close closes all cached textures this style has open. Do not call this while
+func (this *Theme) Icon (icon tomo.Icon, size tomo.IconSize) canvas.Texture {
-// the style is in use.
+	if this.IconTheme == nil {
-func (this *Style) Close () error {
+		return this.missingTexture()
+	} else {
+		return this.IconTheme.Icon(icon, size)
+	}
+}
+
+func (this *Theme) MimeIcon (mime data.Mime, size tomo.IconSize) canvas.Texture {
+	if this.IconTheme == nil {
+		return this.missingTexture()
+	} else {
+		return this.IconTheme.MimeIcon(mime, size)
+	}
+}
+
+// Close closes all cached textures this theme has open. Do not call this while
+// the theme is in use.
+func (this *Theme) Close () error {
 	this.missing.Close()
 	this.missing = nil
 	for _, texture := range this.textures {