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/*
* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <LibCore/ConfigFile.h>
#include <LibGfx/SystemTheme.h>
#include <string.h>
namespace Gfx {
static SystemTheme dummy_theme;
static const SystemTheme* theme_page = &dummy_theme;
static Core::AnonymousBuffer theme_buffer;
const SystemTheme& current_system_theme()
{
VERIFY(theme_page);
return *theme_page;
}
Core::AnonymousBuffer& current_system_theme_buffer()
{
VERIFY(theme_buffer.is_valid());
return theme_buffer;
}
void set_system_theme(Core::AnonymousBuffer buffer)
{
theme_buffer = move(buffer);
theme_page = theme_buffer.data<SystemTheme>();
}
Core::AnonymousBuffer load_system_theme(const String& path)
{
auto file = Core::ConfigFile::open(path);
auto buffer = Core::AnonymousBuffer::create_with_size(sizeof(SystemTheme));
auto* data = buffer.data<SystemTheme>();
auto get_color = [&](auto& name) {
auto color_string = file->read_entry("Colors", name);
auto color = Color::from_string(color_string);
if (!color.has_value())
return Color(Color::Black);
return color.value();
};
auto get_metric = [&](auto& name, auto role) {
int metric = file->read_num_entry("Metrics", name, -1);
if (metric == -1) {
switch (role) {
case (int)MetricRole::TitleHeight:
return 19;
case (int)MetricRole::TitleButtonHeight:
return 15;
case (int)MetricRole::TitleButtonWidth:
return 15;
default:
dbgln("Metric {} has no fallback value!", name);
return 16;
}
}
return metric;
};
auto get_path = [&](auto& name, auto role, bool allow_empty) {
auto path = file->read_entry("Paths", name);
if (path.is_empty()) {
switch (role) {
case (int)PathRole::TitleButtonIcons:
return "/res/icons/16x16/";
default:
return allow_empty ? "" : "/res/";
}
}
return &path[0];
};
#undef __ENUMERATE_COLOR_ROLE
#define __ENUMERATE_COLOR_ROLE(role) \
data->color[(int)ColorRole::role] = get_color(#role).value();
ENUMERATE_COLOR_ROLES(__ENUMERATE_COLOR_ROLE)
#undef __ENUMERATE_COLOR_ROLE
#define DO_METRIC(x) \
data->metric[(int)MetricRole::x] = get_metric(#x, (int)MetricRole::x)
DO_METRIC(TitleHeight);
DO_METRIC(TitleButtonWidth);
DO_METRIC(TitleButtonHeight);
#define DO_PATH(x, allow_empty) \
do { \
auto path = get_path(#x, (int)PathRole::x, allow_empty); \
memcpy(data->path[(int)PathRole::x], path, min(strlen(path) + 1, sizeof(data->path[(int)PathRole::x]))); \
data->path[(int)PathRole::x][sizeof(data->path[(int)PathRole::x]) - 1] = '\0'; \
} while (0)
DO_PATH(TitleButtonIcons, false);
DO_PATH(ActiveWindowShadow, true);
DO_PATH(InactiveWindowShadow, true);
DO_PATH(TaskbarShadow, true);
DO_PATH(MenuShadow, true);
DO_PATH(TooltipShadow, true);
return buffer;
}
}
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