gtk2/gtk/theme/Adwaita/_drawing.scss
Lapo Calamandrei 1f8b146410 Adwaita: sass, make button mixin export a global $button_fill var
$button_fill contains the background-image property value of
buttons, having it readable outside the drawing mixin allows, for
example, stacking background images in an easier way.
2016-10-19 16:07:34 +02:00

630 lines
19 KiB
SCSS

// Drawing mixins
// generic drawing of more complex things
@function _widget_edge($c:$borders_edge) {
// outer highlight "used" on most widgets
@if $c == none { @return none; }
@else { @return 0 1px $c; }
}
@mixin _shadows($list...) {
//
// Helper mixin to stack up to box-shadows;
//
$shadows: null;
@each $shadow in $list {
@if $shadow!=none { $shadows: $shadows, $shadow; }
}
box-shadow: $shadows;
}
// entries
@function entry_focus_border($fc:$selected_bg_color) {
@if $variant == 'light' { @return $fc; }
@else { @return if($fc==$selected_bg_color, $selected_borders_color, darken($fc, 35%)); }
}
@function entry_focus_shadow($fc:$selected_bg_color) { @return inset 0 0 0 1px $fc; }
@mixin entry($t, $fc:$selected_bg_color, $edge: none) {
//
// Entries drawing function
//
// $t: entry type
// $fc: focus color
// $edge: set to none to not draw the bottom edge or specify a color to not
// use the default one
//
// possible $t values:
// normal, focus, insensitive, backdrop, backdrop-insensitive, osd, osd-focus, osd-backdrop;
//
$_blank_edge: if($edge == none, none, 0 1px transparentize($edge, 1));
$_entry_edge: if($edge == none, none, _widget_edge($edge));
@if $t==normal {
color: $text_color;
border-color: $borders_color;
background-color: $base_color;
@include _shadows(entry_focus_shadow(transparentize($fc, 1)), $_entry_edge);
// for the transition to work the number of shadows in different states needs to match, hence the transparent shadow here.
}
@if $t==focus {
@include _shadows(entry_focus_shadow($fc), $_entry_edge);
border-color: entry_focus_border($fc);
}
@if $t==insensitive {
color: $insensitive_fg_color;
border-color: $borders_color;
background-color: $insensitive_bg_color;
box-shadow: $_entry_edge;
}
@if $t==backdrop {
color: $backdrop_text_color;
border-color: $backdrop_borders_color;
background-color: $backdrop_base_color;
box-shadow: $_blank_edge;
}
@if $t==backdrop-insensitive {
color: $backdrop_insensitive_color;
border-color: $backdrop_borders_color;
background-color: $insensitive_bg_color;
box-shadow: $_blank_edge;
}
@if $t==osd {
color: $osd_text_color;
border-color: $osd_borders_color;
background-color: transparentize(opacify($osd_borders_color, 1), 0.5);
background-clip: padding-box;
box-shadow: none;
text-shadow: 0 1px black;
-gtk-icon-shadow: 0 1px black;
}
@if $t==osd-focus {
color: $osd_text_color;
border-color: $selected_bg_color;
background-color: transparentize(opacify($osd_borders_color, 1), 0.5);
background-clip: padding-box;
box-shadow: entry_focus_shadow($fc);
text-shadow: 0 1px black;
-gtk-icon-shadow: 0 1px black;
}
@if $t==osd-insensitive {
color: $osd_insensitive_fg_color;
border-color: $osd_borders_color;
background-color: $osd_insensitive_bg_color;
background-clip: padding-box;
box-shadow: none;
text-shadow: none;
-gtk-icon-shadow: none;
}
@if $t==osd-backdrop {
color: $osd_text_color;
border-color: $osd_borders_color;
background-color: transparentize(opacify($osd_borders_color, 1), 0.5);
background-clip: padding-box;
box-shadow: none;
text-shadow: none;
-gtk-icon-shadow: none;
}
}
// buttons
@function _border_color($c, $darker: false) {
@if $darker == true { @return darken($c, 30%); }
@else { @return darken($c, 20%); }
}
@function _text_shadow_color ($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, $_lbg*0.8); }
}
@function _button_hilight_color($c) {
//
// calculate the right top hilight color for buttons
//
// $c: base color;
//
@if lightness($c)>95% { @return white; }
@else if lightness($c)>90% { @return transparentize(white, 0.2); }
@else if lightness($c)>80% { @return transparentize(white, 0.4); }
@else if lightness($c)>50% { @return transparentize(white, 0.6); }
@else if lightness($c)>40% { @return transparentize(white, 0.8); }
@else { @return transparentize(white, 0.95); }
}
@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;
-gtk-icon-shadow: 0 1px $_shadow;
}
@else {
text-shadow: 0 -1px $_shadow;
-gtk-icon-shadow: 0 -1px $_shadow;
}
}
@mixin button($t, $c:$bg_color, $tc:$fg_color, $edge: none) {
//
// Button drawing function
//
// $t: button type,
// $c: base button color for colored* types
// $tc: optional text color for colored* types
// $edge: set to none to not draw the bottom edge or specify a color to not
// use the default one
//
// possible $t values:
// normal, hover, active, insensitive, insensitive-active,
// backdrop, backdrop-active, backdrop-insensitive, backdrop-insensitive-active,
// osd, osd-hover, osd-active, osd-insensitive, osd-backdrop, undecorated
//
// This mixin sets the $button_fill global variable which containts the button background-image
//
$_hilight_color: _button_hilight_color($c);
$_button_edge: if($edge == none, none, _widget_edge($edge));
$_blank_edge: if($edge == none, none, _widget_edge(transparentize($edge,1)));
@if $t==normal {
//
// normal button
//
color: $tc;
outline-color: transparentize($tc, 0.7);
border-color: if($c != $bg_color, _border_color($c), $borders_color);
border-bottom-color: if($c != $bg_color, _border_color($c, true), $alt_borders_color);
$button_fill: if($variant == 'light', linear-gradient(to bottom, $c, darken($c, 4%) 60%, darken($c, 10%)),
linear-gradient(to bottom, darken($c, 2%), darken($c, 4%) 60%, darken($c, 6%))) !global;
background-image: $button_fill;
@include _button_text_shadow($tc, $c);
@include _shadows(inset 0 1px $_hilight_color, $_button_edge);
}
@else if $t==hover {
//
// hovered button
//
color: $tc;
outline-color: transparentize($tc, 0.7);
border-color: if($c != $bg_color, _border_color($c), $borders_color);
border-bottom-color: if($c != $bg_color, _border_color($c, true), $alt_borders_color);
@if $variant == 'light' {
$button_fill: linear-gradient(to bottom, lighten($c, 6%), $c 60%, darken($c, 4%)) !global;
@include _button_text_shadow($tc, lighten($c, 6%));
@include _shadows(inset 0 1px _button_hilight_color(lighten($c, 6%)), $_button_edge);
}
@else {
$button_fill: linear-gradient(to bottom, lighten($c, 1%), darken($c, 2%) 60%, darken($c, 4%)) !global;
@include _button_text_shadow($tc,lighten($c, 6%));
@include _shadows(inset 0 1px _button_hilight_color(darken($c, 2%)), $_button_edge);
}
background-image: $button_fill;
}
@if $t==normal-alt {
//
// normal button alternative look
//
color: $tc;
outline-color: transparentize($tc, 0.7);
border-color: if($c != $bg_color, _border_color($c, true), $alt_borders_color);
@include _button_text_shadow($tc, $c);
@if $variant == 'light' {
background-image: linear-gradient(to bottom, lighten($c, 5%) 20%, $c 90%);
@include _shadows(inset 0 1px _button_hilight_color(lighten($c, 6%)),
inset 0 -2px lighten($c, 2%),
inset 0 -1px darken($c, 12%),
$_button_edge);
}
@else {
background-image: linear-gradient(to bottom, darken($c, 3%) 20%, darken($c, 6%) 90%);
@include _shadows(inset 0 1px $_hilight_color,
inset 0 -2px darken($c, 4%),
inset 0 -1px darken($c, 9%),
$_button_edge);
}
}
@else if $t==hover-alt {
//
// hovered button alternative look
//
color: $tc;
outline-color: transparentize($tc, 0.7);
border-color: if($c != $bg_color, _border_color($c, true), $alt_borders_color);
@if $variant == 'light' {
$button_fill: linear-gradient(to bottom, lighten($c, 9%) 10%, lighten($c, 4%) 90%) !global;
@include _shadows(inset 0 1px _button_hilight_color(lighten($c, 6%)),
inset 0 -2px lighten($c, 5%),
inset 0 -1px darken($c, 10%),
$_button_edge);
}
@else {
$button_fill: linear-gradient(to bottom, $c 20%, darken($c, 4%) 90%) !global;
@include _shadows(inset 0 1px $_hilight_color,
inset 0 -2px darken($c, 3%),
inset 0 -1px darken($c, 6%),
$_button_edge);
}
background-image: $button_fill;
}
@else if $t==active {
//
// pushed button
//
color: $tc;
outline-color: transparentize($tc, 0.7);
border-color: if($c != $bg_color, _border_color($c), $borders_color);
$button_fill: image(darken($c, 6%)) !global;
background-image: $button_fill;
@include _shadows(inset 0 1px transparentize($_hilight_color, 1), $_button_edge);
text-shadow: none;
-gtk-icon-shadow: none;
}
@else if $t==insensitive {
//
// insensitive button
//
$_bg: if($c != $bg_color, mix($c, $base_color, 85%), $insensitive_bg_color);
label, & { color: if($tc != $fg_color, mix($tc, $_bg, 50%), $insensitive_fg_color); }
border-color: if($c != $bg_color, _border_color($c), $insensitive_borders_color);
$button_fill: image($_bg) !global;
background-image: $button_fill;
text-shadow: none;
-gtk-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), $_button_edge);
}
@else if $t==insensitive-active {
//
// insensitive pushed button
//
$_bg: if($variant == 'light', darken(mix($c, $base_color, 85%), 8%), darken(mix($c, $base_color, 85%), 6%));
$_bc: if($c != $bg_color, _border_color($c), $insensitive_borders_color);
label, & { color: if($c != $bg_color, mix($tc, $_bg, 60%), $insensitive_fg_color); }
border-color: $_bc;
$button_fill: image($_bg) !global;
background-image: $button_fill;
// 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), $_button_edge);
}
@else if $t==backdrop {
//
// backdrop button
//
$_bg: if($c != $bg_color, $c, $backdrop_bg_color);
$_bc: if($variant == 'light', $c, _border_color($c));
label, & { color: if($tc != $fg_color, mix($tc, $_bg, 80%), $backdrop_fg_color); }
border-color: if($c != $bg_color, $_bc, $backdrop_borders_color);
$button_fill: image($_bg) !global;
background-image: $button_fill;
text-shadow: none;
-gtk-icon-shadow: none;
@include _shadows(inset 0 1px transparentize(white, 1), $_blank_edge);
}
@else if $t==backdrop-active {
//
// backdrop pushed button
//
$_bg: if($variant == 'light', darken(mix($c, $base_color, 85%), 8%), darken(mix($c, $base_color, 85%), 4%));
$_bc: if($variant == 'light', $_bg ,_border_color($c));
label, & { color: if($tc != $fg_color, mix($tc, $_bg, 80%), $backdrop_fg_color); }
border-color: if($c != $bg_color, $_bc, $backdrop_borders_color);
$button_fill: image($_bg) !global;
background-image: $button_fill;
@include _shadows(inset 0 1px transparentize(white, 1), $_blank_edge);
}
@else if $t==backdrop-insensitive {
//
// backdrop insensitive button
//
$_bg: if($c != $bg_color, mix($c, $base_color, 85%), $insensitive_bg_color);
$_bc: if($variant == 'light', $_bg,_border_color($c));
label, & { color: if($c != $bg_color, mix($tc, $_bg, 35%), $backdrop_insensitive_color); }
border-color: if($c != $bg_color, $_bc, $backdrop_borders_color);
$button_fill: image($_bg) !global;
background-image: $button_fill;
text-shadow: none;
-gtk-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), $_blank_edge);
}
@else if $t==backdrop-insensitive-active {
//
// backdrop insensitive pushed button
//
$_bg: if($variant == 'light', darken(mix($c, $base_color, 85%), 8%), darken(mix($c, $base_color, 85%), 4%));
$_bc: if($variant == 'light', $_bg, _border_color($c));
label { color: if($c != $bg_color, mix($tc, $_bg, 35%), $backdrop_insensitive_color); }
border-color: if($c != $bg_color, $_bc, $backdrop_borders_color);
$button_fill: image($_bg) !global;
background-image: $button_fill;
@include _shadows(inset 0 1px transparentize(white, 1), $_blank_edge);
}
@else if $t==osd {
//
// normal osd button
//
$_bg: if($c != $bg_color, transparentize($c, 0.5), $osd_bg_color);
color: $osd_fg_color;
border-color: $osd_borders_color;
background-color: transparent;
$button_fill: image($_bg) !global;
background-image: $button_fill;
background-clip: padding-box;
box-shadow: inset 0 1px transparentize(white, 0.9);
text-shadow: 0 1px black;
-gtk-icon-shadow: 0 1px black;
outline-color: transparentize($osd_fg_color, 0.7);
}
@else if $t==osd-hover {
//
// active osd button
//
$_bg: if($c != $bg_color, transparentize($c, 0.3), lighten($osd_bg_color, 12%));
color: white;
border-color: $osd_borders_color;
background-color: transparent;
$button_fill: image($_bg) !global;
background-image: $button_fill;
background-clip: padding-box;
box-shadow: inset 0 1px transparentize(white, 0.9);
text-shadow: 0 1px black;
-gtk-icon-shadow: 0 1px black;
outline-color: transparentize($osd_fg_color, 0.7);
}
@else if $t==osd-active {
//
// active osd button
//
$_bg: if($c != $bg_color, $c, $osd_borders_color);
color: white;
border-color: $osd_borders_color;
background-color: transparent;
$button_fill: image($_bg) !global;
background-image: $button_fill;
background-clip: padding-box;
box-shadow: none;
text-shadow: none;
-gtk-icon-shadow: none;
outline-color: transparentize($osd_fg_color, 0.7);
}
@else if $t==osd-insensitive {
//
// insensitive osd button
//
color: $osd_insensitive_fg_color;
border-color: $osd_borders_color;
background-color: transparent;
$button_fill: image($osd_insensitive_bg_color) !global;
background-image: $button_fill;
background-clip: padding-box;
box-shadow: none;
text-shadow: none;
-gtk-icon-shadow: none;
}
@else if $t==osd-backdrop {
//
// backdrop osd button
//
$_bg: if($c != $bg_color, transparentize($c, 0.5), $osd_bg_color);
color: $osd_fg_color;
border-color: $osd_borders_color;
background-color: transparent;
$button_fill: image($_bg) !global;
background-image: $button_fill;
background-clip: padding-box;
box-shadow: none;
text-shadow: none;
-gtk-icon-shadow: none;
}
@else if $t==undecorated {
//
// reset
//
border-color: transparent;
background-color: transparent;
$button_fill: none !global;
background-image: $button_fill;
@include _shadows(inset 0 1px transparentize(white, 1), $_blank_edge);
text-shadow: none;
-gtk-icon-shadow: none;
}
}
@mixin headerbar_fill($c:$headerbar_color, $hc:$top_hilight, $ov: none) {
//
// headerbar fill
//
// $c: base color
// $hc: top highlight color
// $ov: a background layer for background shorthand (hence no commas!)
//
$gradient: linear-gradient(to top, darken($c, 13%), darken($c, 2%) 2px, $c 3px);
@if $variant == 'dark' { $gradient: linear-gradient(to top, darken($c, 3%), darken($c, 1%) 2px, $c 3px); }
@if $ov != none { background: $c $ov, $gradient; }
@else { background: $c $gradient; }
box-shadow: inset 0 1px $hc; // top highlight
}
@mixin overshoot($p, $t:normal, $c:$fg_color) {
//
// overshoot
//
// $p: position
// $t: type
// $c: base color
//
// possible $p values:
// top, bottom, right, left
//
// possible $t values:
// normal, backdrop
//
$_small_gradient_length: 5%;
$_big_gradient_length: 100%;
$_position: center top;
$_small_gradient_size: 100% $_small_gradient_length;
$_big_gradient_size: 100% $_big_gradient_length;
@if $p==bottom {
$_position: center bottom;
$_linear_gradient_direction: to top;
}
@else if $p==right {
$_position: right center;
$_small_gradient_size: $_small_gradient_length 100%;
$_big_gradient_size: $_big_gradient_length 100%;
}
@else if $p==left {
$_position: left center;
$_small_gradient_size: $_small_gradient_length 100%;
$_big_gradient_size: $_big_gradient_length 100%;
}
$_small_gradient_color: $c;
$_big_gradient_color: $c;
@if $c==$fg_color {
$_small_gradient_color: darken($borders_color, 10%);
$_big_gradient_color: $fg_color;
@if $t==backdrop { $_small_gradient_color: $backdrop_borders_color; }
}
$_small_gradient: -gtk-gradient(radial,
$_position, 0,
$_position, 0.5,
to($_small_gradient_color),
to(transparentize($_small_gradient_color, 1)));
$_big_gradient: -gtk-gradient(radial,
$_position, 0,
$_position, 0.6,
from(transparentize($_big_gradient_color, 0.93)),
to(transparentize($_big_gradient_color, 1)));
@if $t==normal {
background-image: $_small_gradient, $_big_gradient;
background-size: $_small_gradient_size, $_big_gradient_size;
}
@else if $t==backdrop {
background-image: $_small_gradient;
background-size: $_small_gradient_size;
}
background-repeat: no-repeat;
background-position: $_position;
background-color: transparent; // reset some properties to be sure to not inherit them somehow
border: none; //
box-shadow: none; //
}
@mixin undershoot($p) {
//
// undershoot
//
// $p: position
//
// possible $p values:
// top, bottom, right, left
//
$_undershoot_color_dark: transparentize(black, 0.8);
$_undershoot_color_light: transparentize(white, 0.8);
$_gradient_dir: left;
$_dash_bg_size: 10px 1px;
$_gradient_repeat: repeat-x;
$_bg_pos: center $p;
background-color: transparent; // shouldn't be needed, but better to be sure;
@if ($p == left) or ($p == right) {
$_gradient_dir: top;
$_dash_bg_size: 1px 10px;
$_gradient_repeat: repeat-y;
$_bg_pos: $p center;
}
background-image: linear-gradient(to $_gradient_dir, // this is the dashed line
$_undershoot_color_light 50%,
$_undershoot_color_dark 50%);
padding-#{$p}: 1px;
background-size: $_dash_bg_size;
background-repeat: $_gradient_repeat;
background-origin: content-box;
background-position: $_bg_pos;
border: none;
box-shadow: none;
}