gtk2/gtk/resources/theme/Adwaita/_drawing.scss

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SCSS

// Drawing mixins
// generic drawing of more complex things
$widget_edge: 0 1px $borders_edge; //outer hilight "used" on
//most widgets
@mixin _shadows($shadow1, $shadow2:none, $shadow3:none, $shadow4:none) {
//
// Helper function to stack up to 4 box-shadows;
//
@if $shadow4!=none { box-shadow: $shadow1, $shadow2, $shadow3, $shadow4; }
@else if $shadow3!=none { box-shadow: $shadow1, $shadow2, $shadow3; }
@else if $shadow2!=none { box-shadow: $shadow1, $shadow2; }
@else { box-shadow: $shadow1; }
}
// entries
@mixin entry($t, $fc:$selected_bg_color, $noedge:false) {
//
// Entries drawing function
//
// $t: entry type
// $fc: focus color
// $noedge: set to true not to draw the bottom edge hilight
//
// possible $t values:
// normal, focus, insensitive, backdrop, backdrop-insensitive;
//
background-color: transparent;
border-style: solid;
border-width: 1px;
background-image: linear-gradient(to bottom,
darken($base_color,3%),
$base_color 90%);
$_blank_edge: if($noedge, none, 0 1px transparentize(white,1));
$_entry_edge: if($noedge, none, $widget_edge);
$_inner_shadows: inset 0 3px mix(black, $base_color, 3%),
inset 0 1px mix(black, $base_color, 18%);
@if $variant == 'dark' {
$_inner_shadows: inset 0 3px mix(black, $base_color, 20%),
inset 0 1px mix(black, $base_color, 35%);
}
// we need to match the same shadow types (inset/outset) in various states
// hence transparent shadows istead of resetting them when not needed
$_blank_inner_shadows: inset 0 2px transparentize(mix(black, $base_color, 5%),1),
inset 0 1px transparentize(mix(black, $base_color, 18%),1);
$_focus_glow_color: if($variant=='light', transparentize($fc,0.85),
transparentize($fc,0.3));
@if $t==normal {
border-color: $borders_color;
@include _shadows($_inner_shadows,
inset 0 0 0 1px transparentize($fc,1),
$_entry_edge);
// the second transparent shadow is needed for the transition to work
}
@if $t==focus {
@include _shadows($_inner_shadows,
inset 0 0 0 1px $_focus_glow_color,
$_entry_edge);
@if $variant == 'light' { border-color: $fc; }
@else {
border-color: if($fc==$selected_bg_color,
$selected_borders_color,
darken($fc,35%));
}
}
@if $t==insensitive {
color: $insensitive_fg_color;
border-color: $borders_color;
background-image: linear-gradient(to bottom, $insensitive_bg_color);
@include _shadows($_blank_inner_shadows, $_entry_edge);
}
@if $t==backdrop {
color: $backdrop_fg_color;
border-color: $backdrop_borders_color;
background-image: linear-gradient(to bottom, $backdrop_base_color);
@include _shadows($_blank_inner_shadows, $_blank_edge);
}
@if $t==backdrop-insensitive {
color: $backdrop_insensitive_color;
border-color: $backdrop_borders_color;
background-image: linear-gradient(to bottom, $insensitive_bg_color);
@include _shadows($_blank_inner_shadows, $_blank_edge);
}
}
// buttons
@function _border_color ($c) { @return darken($c,25%); } // colored buttons want the
// border form the base color
@function _text_shadow_color ($tc:$fg_color, $bg:$bg_color) {
//
// calculate the color of text shadows
//
// $tc is the text color
// $bg is the background color
//
$_lbg: lightness($bg)/100%;
@if lightness($tc)<50% { @return transparentize(white,1-$_lbg/($_lbg*1.3)); }
@else { @return transparentize(black,$_lbg*0.8); }
}
@mixin _button_text_shadow ($tc:$fg_color, $bg:$bg_color) {
//
// helper function for the text emboss effect
//
// $tc is the optional text color, not the shadow color
//
// TODO: this functions needs a way to deal with special cases
//
$_shadow: _text_shadow_color($tc, $bg);
@if lightness($tc)<50% {
text-shadow: 0 1px $_shadow;
icon-shadow: 0 1px $_shadow;
}
@else {
text-shadow: 0 -1px $_shadow;
icon-shadow: 0 -1px $_shadow;
}
}
@mixin button($t, $c:$bg_color, $tc:$fg_color, $noedge:false) {
//
// Button drawing function
//
// $t: button type,
// $c: base button color for colored* types
// $tc: optional text color for colored* types
// $noedge: set to true not to draw the bottom edge hilight
//
// possible $t values:
// normal, hover, active, insensitive, insensitive-active,
// backdrop, backdrop-active, backdrop-insensitive, backdrop-insensitive-active,
// osd, osd-hover, osd-active, osd-insensitive, undecorated
//
border-style: solid;
$_top_hilight: if(lightness($c)> 70%, white, transparentize(white,0.9)); //not just dark/light but colored buttons
@if $t==normal {
//
// normal button
//
border-width: 1px;
color: $tc;
background-image: linear-gradient(to bottom,
lighten($c,5%),
$c 40%,
darken($c,5%)
);
@if $c!=$bg_color { border-color: _border_color($c); }
@else { border-color: $borders_color; }
@include _button_text_shadow($tc,$c);
$_outsets: if($noedge, none, $widget_edge);
@include _shadows(inset 0 1px $_top_hilight, $_outsets);
}
@else if $t==hover {
//
// hovered button
//
color: $tc;
@if $c!=$bg_color { border-color: _border_color($c); }
@else { border-color: $borders_color; }
background-image: linear-gradient(to bottom,
lighten($c,14%),
lighten($c,4%) 40%,
$c);
@include _button_text_shadow($tc,lighten($c,4%));
$_outsets: if($noedge, none, $widget_edge);
@include _shadows(inset 0 1px $_top_hilight, $_outsets);
}
@else if $t==active {
//
// pushed button
//
color: $tc;
@if $c!=$bg_color {border-color: _border_color($c); }
@else { border-color: $borders_color; }
background-image: linear-gradient(to bottom,
darken($c,9%),
darken($c,5%));
@include _button_text_shadow($tc,darken($c,10%));
$_outsets: if($noedge, none, $widget_edge);
@include _shadows(inset 0 1px transparentize(black, 0.93),
inset 0 2px 1px -2px transparentize(black,0.4),
$_outsets);
}
@else if $t==insensitive {
//
// insensitive button
//
$_bg: if($c!=$bg_color, mix($c,$base_color,85%), $insensitive_bg_color);
color: if($c!=$bg_color, mix($tc,$_bg,60%), $insensitive_fg_color);
border-color: if($c!=$bg_color, _border_color($c),
$insensitive_borders_color);
background-image: linear-gradient(to bottom, $_bg);
text-shadow: none;
icon-shadow: none;
$_outsets: if($noedge, none, $widget_edge);
// white with 0 alpha to avoid an ugly transition, since no color means
// black with 0 alpha
@include _shadows(inset 0 1px transparentize(white,1), $_outsets);
}
@else if $t==insensitive-active {
//
// insensitive pushed button
//
$_bg: if($c!=$bg_color, mix($c,$base_color,85%), $insensitive_bg_color);
color: if($c!=$bg_color, mix($tc,$_bg,60%), $insensitive_fg_color);
$_bc: if($c!=$bg_color, _border_color($c), $insensitive_borders_color);
border-color: $_bc;
color: $insensitive_fg_color;
border-color: $insensitive_borders_color;
background-image: linear-gradient(to bottom, mix($_bc, $_bg, 10%), $_bg);
$_outsets: if($noedge, none, $widget_edge);
// white with 0 alpha to avoid an ugly transition, since no color means
// black with 0 alpha
@include _shadows(inset 0 1px transparentize(white,1), $_outsets);
//FIXME make it clearer
}
@else if $t==backdrop {
//
// backdrop button
//
@if $c!=$bg_color {
color: $tc;
border-color: if($variant=='light',$c,_border_color($c));
}
@else {
color: $backdrop_fg_color;
border-color: $backdrop_borders_color;
}
background-image: linear-gradient(to bottom,
if($c!=bg_color,$c,$backdrop_bg_color));
text-shadow: none;
icon-shadow: none;
@include _shadows(inset 0 1px transparentize(white,1),
0 1px transparentize(white,1));
}
@else if $t==backdrop-active {
//
// backdrop pushed button FIXME no colors here!
//
color: $backdrop_fg_color;
border-color: $backdrop_borders_color;
background-image: linear-gradient(to bottom, $backdrop_dark_fill);
box-shadow: inset 0 1px transparentize(white,1),
0 1px transparentize(white,1);
}
@else if $t==backdrop-insensitive {
//
// backdrop insensitive button
//
//box-shadow: inset 0 1px transparentize(white,1),
// 0 1px transparentize(white,1);
$_bg: if($c!=$bg_color, mix($c,$base_color,85%), $insensitive_bg_color);
color: if($c!=$bg_color, mix($tc,$_bg,35%), $backdrop_insensitive_color);
border-color: if($c!=$bg_color, _border_color($c), $backdrop_borders_color);
background-image: linear-gradient(to bottom, $_bg);
text-shadow: none;
icon-shadow: none;
// white with 0 alpha to avoid an ugly transition, since no color means
// black with 0 alpha
@include _shadows(inset 0 1px transparentize(white,1),
0 1px transparentize(white,1));
}
@else if $t==backdrop-insensitive-active {
//
// backdrop insensitive pushed button
//
color: $backdrop_insensitive_color;
border-color: $backdrop_borders_color;
background-image: linear-gradient(to bottom,
mix($backdrop_borders_color,$insensitive_bg_color, 8%));
box-shadow: inset 0 1px transparentize(white,1),
0 1px transparentize(white,1);
}
@else if $t==osd {
//
// normal osd button
//
background-image: linear-gradient(to bottom, $osd_bg_color);
border-color: $osd_borders_color;
box-shadow: none;
}
@else if $t==osd-hover {
//
// active osd button
//
background-image: linear-gradient(to bottom, lighten($osd_bg_color,10%));
border-color: $osd_borders_color;
box-shadow: none;
}
@else if $t==osd-active {
//
// active osd button
//
background-image: linear-gradient(to bottom, lighten($osd_bg_color,20%));
border-color: $osd_borders_color;
box-shadow: none;
}
@else if $t==osd-insensitive {
//
// insensitive osd button
//
border-color: $osd_borders_color;
color: $insensitive_fg_color;
}
@else if $t==undecorated {
//
// reset
//
border-color: transparent;
background-color: transparent;
background-image: none;
box-shadow: inset 0 1px transparentize(white,1);
text-shadow: none;
icon-shadow: none;
}
}
@mixin trough($flat:false, $c:$bg_color, $tc:$fg_color, $noedge:false) {
color: mix($tc,$bg_color,80%);
@if $flat { background-image: linear-gradient(to bottom,$c); }
@else {
background-image: linear-gradient(to bottom,
mix(black,$c,15%) 5%,
mix(black,$c,10%) 20%,
mix(black,$c,10%) 90%,
$c);
}
border-color: if($c!=$bg_color, _border_color($c), $border_color);
@if not($noedge) {
@if lightness($c) > 60% {
box-shadow: inset 0 -1px $borders_edge,
0 1px $borders_edge;
}
@else {
box-shadow: inset 0 -1px transparentize($borders_edge,0.5),
0 1px transparentize($borders_edge,0.5);
}
}
@else { box-shadow: none; }
}
@mixin progressbar_fill($d:horizontal) {
$dir: if($d==vertical,right,bottom);
background-image: linear-gradient(to $dir, $selected_bg_color 2px,
lighten($selected_bg_color,6%));
}