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WindowServer+LibGUI: Add an IPC API to change the current system fonts

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This patch adds a set_system_fonts() IPC API that takes the two main
font queries as parameters. We'll probably expand this with additional
queries when we figure out what they should be.

Note that changing the system fonts on a live system mostly takes
effect in newly launched programs. This is because GUI::Widget will
currently cache a pointer to the Gfx::FontDatabase::default_font()
when first constructed. This is something we'll have to fix somehow.

Also note that the settings are not yet persisted.
This commit is contained in:
Andreas Kling 2021-05-21 18:53:03 +02:00
parent bb23e61fbf
commit c778130d63
6 changed files with 39 additions and 8 deletions
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21
Userland/Services/WindowServer/WindowManager.cpp
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@ -1543,13 +1543,8 @@ Gfx::IntRect WindowManager::dnd_rect() const
return Gfx::IntRect(location, { width, height }).inflated(16, 8);
}
bool WindowManager::update_theme(String theme_path, String theme_name)
void WindowManager::invalidate_after_theme_or_font_change()
{
auto new_theme = Gfx::load_system_theme(theme_path);
if (!new_theme.is_valid())
return false;
Gfx::set_system_theme(new_theme);
m_palette = Gfx::PaletteImpl::create_with_anonymous_buffer(new_theme);
Compositor::the().set_background_color(palette().desktop_background().to_string());
HashTable<ClientConnection*> notified_clients;
WindowFrame::reload_config();
@ -1565,11 +1560,21 @@ bool WindowManager::update_theme(String theme_path, String theme_name)
});
MenuManager::the().did_change_theme();
AppletManager::the().did_change_theme();
Compositor::the().invalidate_occlusions();
Compositor::the().invalidate_screen();
}
bool WindowManager::update_theme(String theme_path, String theme_name)
{
auto new_theme = Gfx::load_system_theme(theme_path);
if (!new_theme.is_valid())
return false;
Gfx::set_system_theme(new_theme);
m_palette = Gfx::PaletteImpl::create_with_anonymous_buffer(new_theme);
auto wm_config = Core::ConfigFile::open("/etc/WindowServer.ini");
wm_config->write_entry("Theme", "Name", theme_name);
wm_config->sync();
Compositor::the().invalidate_occlusions();
Compositor::the().invalidate_screen();
invalidate_after_theme_or_font_change();
return true;
}