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https://github.com/LadybirdBrowser/ladybird.git
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411058b2a3
Color themes are loaded from .ini files in /res/themes/ The theme can be switched from the "Themes" section in the system menu. The basic mechanism is that WindowServer broadcasts a SharedBuffer with all of the color values of the current theme. Clients receive this with the response to their initial WindowServer::Greet handshake. When the theme is changed, WindowServer tells everyone by sending out an UpdateSystemTheme message with a new SharedBuffer to use. This does feel somewhat bloated somehow, but I'm sure we can iterate on it over time and improve things. To get one of the theme colors, use the Color(SystemColor) constructor: painter.fill_rect(rect, SystemColor::HoverHighlight); Some things don't work 100% right without a reboot. Specifically, when constructing a GWidget, it will set its own background and foreground colors based on the current SystemColor::Window and SystemColor::Text. The widget is then stuck with these values, and they don't update on system theme change, only on app restart. All in all though, this is pretty cool. Merry Christmas! :^)
258 lines
12 KiB
C++
258 lines
12 KiB
C++
#include <LibDraw/Painter.h>
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#include <LibDraw/StylePainter.h>
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void StylePainter::paint_tab_button(Painter& painter, const Rect& rect, bool active, bool hovered, bool enabled)
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{
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Color base_color = SystemColor::Window;
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Color highlight_color2 = SystemColor::ThreedHighlight;
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Color shadow_color1 = SystemColor::ThreedShadow1;
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Color shadow_color2 = SystemColor::ThreedShadow2;
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if (hovered && enabled && !active)
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base_color = StylePainter::hover_highlight_color();
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PainterStateSaver saver(painter);
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painter.translate(rect.location());
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// Base
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painter.fill_rect({ 1, 1, rect.width() - 2, rect.height() - 1 }, base_color);
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// Top line
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painter.draw_line({ 2, 0 }, { rect.width() - 3, 0 }, highlight_color2);
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// Left side
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painter.draw_line({ 0, 2 }, { 0, rect.height() - 1 }, highlight_color2);
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painter.set_pixel({ 1, 1 }, highlight_color2);
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// Right side
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painter.draw_line({
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rect.width() - 1,
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2,
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},
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{ rect.width() - 1, rect.height() - 1 }, shadow_color2);
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painter.draw_line({
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rect.width() - 2,
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2,
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},
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{ rect.width() - 2, rect.height() - 1 }, shadow_color1);
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painter.set_pixel({
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rect.width() - 2,
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1,
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},
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shadow_color2);
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}
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static void paint_button_new(Painter& painter, const Rect& rect, bool pressed, bool checked, bool hovered, bool enabled)
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{
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Color button_color = SystemColor::Window;
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Color highlight_color2 = SystemColor::ThreedHighlight;
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Color shadow_color1 = SystemColor::ThreedShadow1;
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Color shadow_color2 = SystemColor::ThreedShadow2;
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if (checked && enabled) {
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if (hovered)
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button_color = SystemColor::HoverHighlight;
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else
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button_color = SystemColor::Window;
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} else if (hovered && enabled)
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button_color = StylePainter::hover_highlight_color();
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PainterStateSaver saver(painter);
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painter.translate(rect.location());
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if (pressed || checked) {
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// Base
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painter.fill_rect({ 1, 1, rect.width() - 2, rect.height() - 2 }, button_color);
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painter.draw_rect({ {}, rect.size() }, shadow_color2);
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// Sunken shadow
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painter.draw_line({ 1, 1 }, { rect.width() - 2, 1 }, shadow_color1);
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painter.draw_line({ 1, 2 }, { 1, rect.height() - 2 }, shadow_color1);
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} else {
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// Base
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painter.fill_rect({ 1, 1, rect.width() - 3, rect.height() - 3 }, button_color);
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// Outer highlight
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painter.draw_line({ 0, 0 }, { rect.width() - 2, 0 }, highlight_color2);
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painter.draw_line({ 0, 1 }, { 0, rect.height() - 2 }, highlight_color2);
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// Outer shadow
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painter.draw_line({ 0, rect.height() - 1 }, { rect.width() - 1, rect.height() - 1 }, shadow_color2);
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painter.draw_line({ rect.width() - 1, 0 }, { rect.width() - 1, rect.height() - 2 }, shadow_color2);
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// Inner shadow
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painter.draw_line({ 1, rect.height() - 2 }, { rect.width() - 2, rect.height() - 2 }, shadow_color1);
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painter.draw_line({ rect.width() - 2, 1 }, { rect.width() - 2, rect.height() - 3 }, shadow_color1);
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}
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}
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void StylePainter::paint_button(Painter& painter, const Rect& rect, ButtonStyle button_style, bool pressed, bool hovered, bool checked, bool enabled)
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{
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if (button_style == ButtonStyle::Normal)
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return paint_button_new(painter, rect, pressed, checked, hovered, enabled);
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Color button_color = SystemColor::Window;
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Color highlight_color = Color::White;
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Color shadow_color = Color(96, 96, 96);
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if (button_style == ButtonStyle::CoolBar && !enabled)
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return;
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PainterStateSaver saver(painter);
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painter.translate(rect.location());
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if (pressed || checked) {
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// Base
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painter.fill_rect({ 1, 1, rect.width() - 2, rect.height() - 2 }, button_color);
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// Sunken shadow
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painter.draw_line({ 1, 1 }, { rect.width() - 2, 1 }, shadow_color);
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painter.draw_line({ 1, 2 }, { 1, rect.height() - 2 }, shadow_color);
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// Bottom highlight
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painter.draw_line({ rect.width() - 2, 1 }, { rect.width() - 2, rect.height() - 3 }, highlight_color);
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painter.draw_line({ 1, rect.height() - 2 }, { rect.width() - 2, rect.height() - 2 }, highlight_color);
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} else if (button_style == ButtonStyle::CoolBar && hovered) {
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// Base
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painter.fill_rect({ 1, 1, rect.width() - 2, rect.height() - 2 }, button_color);
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// White highlight
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painter.draw_line({ 1, 1 }, { rect.width() - 2, 1 }, highlight_color);
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painter.draw_line({ 1, 2 }, { 1, rect.height() - 2 }, highlight_color);
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// Gray shadow
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painter.draw_line({ rect.width() - 2, 1 }, { rect.width() - 2, rect.height() - 3 }, shadow_color);
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painter.draw_line({ 1, rect.height() - 2 }, { rect.width() - 2, rect.height() - 2 }, shadow_color);
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}
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}
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void StylePainter::paint_surface(Painter& painter, const Rect& rect, bool paint_vertical_lines, bool paint_top_line)
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{
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painter.fill_rect({ rect.x(), rect.y() + 1, rect.width(), rect.height() - 2 }, SystemColor::Window);
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painter.draw_line(rect.top_left(), rect.top_right(), paint_top_line ? SystemColor::ThreedHighlight : SystemColor::Window);
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painter.draw_line(rect.bottom_left(), rect.bottom_right(), SystemColor::ThreedShadow1);
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if (paint_vertical_lines) {
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painter.draw_line(rect.top_left().translated(0, 1), rect.bottom_left().translated(0, -1), SystemColor::ThreedHighlight);
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painter.draw_line(rect.top_right(), rect.bottom_right().translated(0, -1), SystemColor::ThreedShadow1);
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}
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}
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void StylePainter::paint_frame(Painter& painter, const Rect& rect, FrameShape shape, FrameShadow shadow, int thickness, bool skip_vertical_lines)
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{
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Color top_left_color;
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Color bottom_right_color;
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Color dark_shade = SystemColor::ThreedShadow1;
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Color light_shade = SystemColor::ThreedHighlight;
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if (shape == FrameShape::Container && thickness >= 2) {
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if (shadow == FrameShadow::Raised) {
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dark_shade = SystemColor::ThreedShadow2;
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}
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}
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if (shadow == FrameShadow::Raised) {
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top_left_color = light_shade;
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bottom_right_color = dark_shade;
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} else if (shadow == FrameShadow::Sunken) {
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top_left_color = dark_shade;
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bottom_right_color = light_shade;
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} else if (shadow == FrameShadow::Plain) {
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top_left_color = dark_shade;
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bottom_right_color = dark_shade;
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}
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if (thickness >= 1) {
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painter.draw_line(rect.top_left(), rect.top_right(), top_left_color);
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painter.draw_line(rect.bottom_left(), rect.bottom_right(), bottom_right_color);
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if (shape != FrameShape::Panel || !skip_vertical_lines) {
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painter.draw_line(rect.top_left().translated(0, 1), rect.bottom_left().translated(0, -1), top_left_color);
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painter.draw_line(rect.top_right(), rect.bottom_right().translated(0, -1), bottom_right_color);
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}
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}
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if (shape == FrameShape::Container && thickness >= 2) {
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Color top_left_color;
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Color bottom_right_color;
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Color dark_shade = SystemColor::ThreedShadow2;
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Color light_shade = SystemColor::Window;
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if (shadow == FrameShadow::Raised) {
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dark_shade = SystemColor::ThreedShadow1;
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top_left_color = light_shade;
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bottom_right_color = dark_shade;
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} else if (shadow == FrameShadow::Sunken) {
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top_left_color = dark_shade;
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bottom_right_color = light_shade;
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} else if (shadow == FrameShadow::Plain) {
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top_left_color = dark_shade;
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bottom_right_color = dark_shade;
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}
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Rect inner_container_frame_rect = rect.shrunken(2, 2);
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painter.draw_line(inner_container_frame_rect.top_left(), inner_container_frame_rect.top_right(), top_left_color);
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painter.draw_line(inner_container_frame_rect.bottom_left(), inner_container_frame_rect.bottom_right(), bottom_right_color);
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painter.draw_line(inner_container_frame_rect.top_left().translated(0, 1), inner_container_frame_rect.bottom_left().translated(0, -1), top_left_color);
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painter.draw_line(inner_container_frame_rect.top_right(), inner_container_frame_rect.bottom_right().translated(0, -1), bottom_right_color);
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}
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if (shape == FrameShape::Box && thickness >= 2) {
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swap(top_left_color, bottom_right_color);
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Rect inner_rect = rect.shrunken(2, 2);
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painter.draw_line(inner_rect.top_left(), inner_rect.top_right(), top_left_color);
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painter.draw_line(inner_rect.bottom_left(), inner_rect.bottom_right(), bottom_right_color);
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painter.draw_line(inner_rect.top_left().translated(0, 1), inner_rect.bottom_left().translated(0, -1), top_left_color);
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painter.draw_line(inner_rect.top_right(), inner_rect.bottom_right().translated(0, -1), bottom_right_color);
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}
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}
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void StylePainter::paint_window_frame(Painter& painter, const Rect& rect)
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{
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Color base_color = SystemColor::Window;
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Color dark_shade = SystemColor::ThreedShadow2;
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Color mid_shade = SystemColor::ThreedShadow1;
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Color light_shade = SystemColor::ThreedHighlight;
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painter.draw_line(rect.top_left(), rect.top_right(), base_color);
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painter.draw_line(rect.top_left().translated(0, 1), rect.bottom_left(), base_color);
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painter.draw_line(rect.top_left().translated(1, 1), rect.top_right().translated(-1, 1), light_shade);
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painter.draw_line(rect.top_left().translated(1, 1), rect.bottom_left().translated(1, -1), light_shade);
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painter.draw_line(rect.top_left().translated(2, 2), rect.top_right().translated(-2, 2), base_color);
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painter.draw_line(rect.top_left().translated(2, 2), rect.bottom_left().translated(2, -2), base_color);
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painter.draw_line(rect.top_right(), rect.bottom_right(), dark_shade);
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painter.draw_line(rect.top_right().translated(-1, 1), rect.bottom_right().translated(-1, -1), mid_shade);
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painter.draw_line(rect.top_right().translated(-2, 2), rect.bottom_right().translated(-2, -2), base_color);
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painter.draw_line(rect.bottom_left(), rect.bottom_right(), dark_shade);
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painter.draw_line(rect.bottom_left().translated(1, -1), rect.bottom_right().translated(-1, -1), mid_shade);
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painter.draw_line(rect.bottom_left().translated(2, -2), rect.bottom_right().translated(-2, -2), base_color);
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}
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void StylePainter::paint_progress_bar(Painter& painter, const Rect& rect, int min, int max, int value, const StringView& text)
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{
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// First we fill the entire widget with the gradient. This incurs a bit of
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// overdraw but ensures a consistent look throughout the progression.
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Color start_color(110, 34, 9);
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Color end_color(244, 202, 158);
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painter.fill_rect_with_gradient(rect, start_color, end_color);
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if (!text.is_null()) {
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painter.draw_text(rect.translated(1, 1), text, TextAlignment::Center, Color::Black);
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painter.draw_text(rect, text, TextAlignment::Center, Color::White);
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}
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float range_size = max - min;
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float progress = (value - min) / range_size;
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// Then we carve out a hole in the remaining part of the widget.
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// We draw the text a third time, clipped and inverse, for sharp contrast.
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float progress_width = progress * rect.width();
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Rect hole_rect { (int)progress_width, 0, (int)(rect.width() - progress_width), rect.height() };
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hole_rect.move_by(rect.location());
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PainterStateSaver saver(painter);
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painter.fill_rect(hole_rect, Color::White);
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painter.add_clip_rect(hole_rect);
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if (!text.is_null())
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painter.draw_text(rect.translated(0, 0), text, TextAlignment::Center, Color::Black);
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}
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