paper-gtk-theme/Paper/gtk-3.16/_drawing.scss

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2016-04-21 14:29:33 +02:00
// 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 $c; }
}
@mixin _shadows($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: $shadow1; }
}
// entries
@function entry_focus_border($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 1px 2px 0 transparentize(black, 0.95), inset 0 1px 1px 0 transparentize(black, 0.9);
}
@function entry_gradient($c) {
@if $variant=='light' { @return linear-gradient(to bottom, mix($borders_color, $c, 45%),
mix($borders_color, $c, 3%) 2px,
$c 90%); }
@else { @return linear-gradient(to bottom, mix($borders_color, $c, 95%),
mix($borders_color, $c, 40%) 3px,
$c 90%); }
}
@mixin entry($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-image: linear-gradient(to bottom, $insensitive_bg_color);
box-shadow: $_entry_edge;
}
@if $t==backdrop {
color: $backdrop_text_color;
border-color: $backdrop_borders_color;
background-image: linear-gradient(to bottom, $backdrop_base_color);
box-shadow: $_blank_edge;
}
@if $t==backdrop-insensitive {
color: $backdrop_insensitive_color;
border-color: $backdrop_borders_color;
background-image: linear-gradient(to bottom, $insensitive_bg_color);
box-shadow: $_blank_edge;
}
@if $t==osd {
color: $osd_text_color;
border-color: $osd_borders_color;
background-image: linear-gradient(to bottom, transparentize(opacify($osd_borders_color, 1), 0.5));
background-clip: padding-box;
box-shadow: none;
text-shadow: 0 1px black;
icon-shadow: 0 1px black;
}
@if $t==osd-focus {
color: $osd_text_color;
border-color: $selected_bg_color;
background-image: linear-gradient(to bottom, transparentize(opacify($osd_borders_color, 1), 0.5));
background-clip: padding-box;
box-shadow: entry_focus_shadow($fc);
text-shadow: 0 1px black;
icon-shadow: 0 1px black;
}
@if $t==osd-insensitive {
color: $osd_insensitive_fg_color;
border-color: $osd_borders_color;
background-image: linear-gradient(to bottom, $osd_insensitive_bg_color);
background-clip: padding-box;
box-shadow: none;
text-shadow: none;
icon-shadow: none;
}
@if $t==osd-backdrop {
color: $osd_text_color;
border-color: $osd_borders_color;
background-image: linear-gradient(to bottom, transparentize(opacify($osd_borders_color, 1), 0.5));
background-clip: padding-box;
box-shadow: none;
text-shadow: none;
icon-shadow: none;
}
}
//
// 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, $_lbg*0.8); }
}
@function _button_hilight_color($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;
icon-shadow: 0 1px $_shadow;
}
@else {
text-shadow: 0 1px transparentize(black, 0.8);
icon-shadow: 0 1px transparentize(black, 0.8);
}
}
@mixin button($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
//
$_hilight_color: _button_hilight_color($c);
$_button_edge: if($edge == none, none, _widget_edge($edge));
$_blank_edge: if($edge == none, none, _widget_edge(transparentize($edge,1)));
// Normal Button
@if $t==normal {
color: $tc;
outline-color: transparentize($tc, 0.7);
border-color: if($c!=$bg_color, _border_color($c), $borders_color);
background-image: linear-gradient(to bottom, $c, darken($c, 5%));
@include _button_text_shadow($tc, $c);
@include _shadows(inset 0 1px $_hilight_color, $_button_edge);
@if $variant == 'light' {
box-shadow:0 1px 0 0 transparentize(white, 0.2);
}
@else {
box-shadow:0 1px 0 0 transparentize(white, 0.95);
}
}
// Hover Button
@else if $t==hover {
color: $tc;
outline-color: transparentize($tc, 0.7);
border-color: if($c!=$bg_color, _border_color($c), $borders_color);
@if $variant == 'light' {
background-image: linear-gradient(to bottom, lighten($c, 6%), $c 60%, darken($c, 4%));
@include _button_text_shadow($tc,lighten($c, 6%));
@include _shadows(inset 0 1px _button_hilight_color(lighten($c, 6%)), $_button_edge);
}
@else {
background-image: linear-gradient(to bottom, lighten($c, 1%), darken($c, 2%) 60%, darken($c, 4%));
@include _button_text_shadow($tc,lighten($c, 6%));
@include _shadows(inset 0 1px _button_hilight_color(darken($c, 2%)), $_button_edge);
}
}
// Pressed button
@else if $t==active {
color: $tc;
outline-color: transparentize($tc, 0.7);
border-color: if($c!=$bg_color, _border_color($c), $borders_color);
background-image: linear-gradient(to bottom, darken($c, 7%), darken($c, 2%));
@include _button_text_shadow($tc, darken($c,10%));
@include _shadows(inset 0 2px 1px -2px transparentize(black,0.4),
$_button_edge);
@if $variant == 'light' {
box-shadow:inset 0 1px 1px 0 transparentize(black, 0.95), 0 1px 0 0 transparentize(white, 0.2);
}
@else {
box-shadow:inset 0 1px 1px 0 transparentize(black, 0.95), 0 1px 0 0 transparentize(white, 0.95);
}
}
// Insensitive Button
@else if $t==insensitive {
$_bg: if($c!=$bg_color, mix($c, $base_color, 85%), $insensitive_bg_color);
GtkLabel, & { color: if($tc!=$fg_color, mix($tc, $_bg, 50%), $insensitive_fg_color); }
border-color: if($c!=$bg_color, _border_color($c), $insensitive_borders_color);
background-image: none;
background-color: $_bg;
text-shadow: none;
box-shadow: none;
icon-shadow: none;
}
// Insensitive Pushed Button
@else if $t==insensitive-active {
$_bg: if($c!=$bg_color, darken(mix($c,$base_color, 85%), 5%),
$insensitive_bg_color);
$_bc: if($c!=$bg_color, _border_color($c), $insensitive_borders_color);
GtkLabel, & { color: if($c!=$bg_color, mix($tc, $_bg, 60%), $insensitive_fg_color); }
border-color: $_bc;
background-image: none;
background-color: $_bg;
text-shadow: none;
@if $variant == 'light' {
box-shadow:inset 0 1px 1px 0 transparentize(black, 0.95), 0 1px 0 0 transparentize(white, 0.2);
}
@else {
box-shadow:inset 0 1px 1px 0 transparentize(black, 0.95), 0 1px 0 0 transparentize(white, 0.95);
}
}
// Backdrop Button
@else if $t==backdrop {
$_bg: if($c!=$bg_color,$c,$backdrop_bg_color);
$_bc: if($variant=='light',$c,_border_color($c));
GtkLabel, & { color: if($tc!=$fg_color,mix($tc, $_bg, 80%), $backdrop_fg_color); }
border-color: if($c!=$bg_color, $_bc, $backdrop_borders_color);
background-image: linear-gradient(to bottom, $_bg);
text-shadow: none;
icon-shadow: none;
@include _shadows(inset 0 1px transparentize(white, 1), $_blank_edge);
}
// Backdrop Pressed Button
@else if $t==backdrop-active {
$_bg: if($c!=$bg_color, darken($c, 10%), $backdrop_dark_fill);
$_bc: if($variant=='light',$_bg,_border_color($c));
GtkLabel, & { color: if($tc!=$fg_color, mix($tc, $_bg, 80%), $backdrop_fg_color); }
label, & { color: if($tc!=$fg_color, mix($tc, $_bg, 80%), $backdrop_fg_color); }
border-color: if($c!=$bg_color, $_bc, $backdrop_borders_color);
background-image: none;
@if $variant == 'light' {
box-shadow:inset 0 1px 1px 0 transparentize(black, 0.95), 0 1px 0 0 transparentize(white, 0.2);
}
@else {
box-shadow:inset 0 1px 1px 0 transparentize(black, 0.95), 0 1px 0 0 transparentize(white, 0.95);
}
}
// Insensitive Backdrop Button
@else if $t==backdrop-insensitive {
$_bg: if($c!=$bg_color, mix($c, $base_color, 85%), $insensitive_bg_color);
$_bc: if($variant=='light', $_bg,_border_color($c));
GtkLabel, & { color: if($c!=$bg_color, mix($tc, $_bg, 35%), $backdrop_insensitive_color); }
border-color: if($c!=$bg_color, $_bc, $backdrop_borders_color);
background-image: none;
background-color: $_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), $_blank_edge);
}
// Insensitive Backdrop Pushed Button
@else if $t==backdrop-insensitive-active {
$_bg: if($c!=$bg_color, darken(mix($c, $base_color, 85%), 5%),
darken($insensitive_bg_color, 5%));
$_bc: if($variant=='light', $_bg,_border_color($c));
GtkLabel { color: if($c!=$bg_color, mix($tc, $_bg, 35%), $backdrop_insensitive_color); }
border-color: if($c!=$bg_color, $_bc, $backdrop_borders_color);
background-image: none;
background-color: $_bg;
@if $variant == 'light' {
box-shadow:inset 0 1px 1px 0 transparentize(black, 0.95), 0 1px 0 0 transparentize(white, 0.2);
}
@else {
box-shadow:inset 0 1px 1px 0 transparentize(black, 0.95), 0 1px 0 0 transparentize(white, 0.95);
}
}
// OSD Button
@else if $t==osd {
$_bg: if($c!=$bg_color, transparentize($c, 0.5), $osd_bg_color);
color: $osd_fg_color;
border-color: $osd_borders_color;
background-image: linear-gradient(to bottom, $_bg);
background-clip: padding-box;
box-shadow: inset 0 1px transparentize(white, 0.9);
text-shadow: 0 1px black;
icon-shadow: 0 1px black;
outline-color: transparentize($osd_fg_color, 0.7);
}
// Hover OSD Button
@else if $t==osd-hover {
$_bg: if($c!=$bg_color, transparentize($c, 0.3), lighten($osd_bg_color, 12%));
color: white;
border-color: $osd_borders_color;
background-image: linear-gradient(to bottom, $_bg);
background-clip: padding-box;
box-shadow: inset 0 1px transparentize(white, 0.9);
text-shadow: 0 1px black;
icon-shadow: 0 1px black;
outline-color: transparentize($osd_fg_color, 0.7);
}
// ACtive OSD Button
@else if $t==osd-active {
$_bg: if($c!=$bg_color, $c, $osd_borders_color);
color: white;
border-color: $osd_borders_color;
background-image: linear-gradient(to bottom, $_bg);
background-clip: padding-box;
box-shadow: none;
text-shadow: none;
icon-shadow: none;
outline-color: transparentize($osd_fg_color, 0.7);
}
// Insensitive OSD Button
@else if $t==osd-insensitive {
color: $osd_insensitive_fg_color;
border-color: $osd_borders_color;
background-image: linear-gradient(to bottom, $osd_insensitive_bg_color);
background-clip: padding-box;
box-shadow: none;
text-shadow: none;
icon-shadow: none;
}
// Backdrop OSD Button
@else if $t==osd-backdrop {
$_bg: if($c!=$bg_color, transparentize($c, 0.5),
$osd_bg_color);
color: $osd_fg_color;
border-color: $osd_borders_color;
background-image: linear-gradient(to bottom, $_bg);
background-clip: padding-box;
box-shadow: none;
text-shadow: none;
icon-shadow: none;
}
// Reset
@else if $t==undecorated {
border-color: transparent;
background-color: transparent;
background-image: none;
@include _shadows(inset 0 1px transparentize(white, 1), $_blank_edge);
text-shadow: none;
icon-shadow: none;
}
}
@mixin trough($flat:false, $c:$bg_color, $tc:$fg_color, $noedge:true) {
color: mix($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($borders_edge, 0.5);
}
}
@else { box-shadow: none; }
}
@mixin overshoot($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;
}