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WindowServer: Load multiple scaled versions of Bitmaps and Cursors

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This enables rendering of mixed-scale screen layouts with e.g. high
resolution cursors and window button icons on high-dpi screens while
using lower resolution bitmaps on regular screens.
This commit is contained in:
Tom 2021-06-18 19:21:30 -06:00 • committed by Andreas Kling
parent aa15bf81e4
commit 61af9d882e
15 changed files with 269 additions and 99 deletions
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20
Userland/Services/WindowServer/WindowManager.cpp
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@ -48,14 +48,10 @@ WindowManager::~WindowManager()
{
}
NonnullRefPtr<Cursor> WindowManager::get_cursor(String const& name)
RefPtr<Cursor> WindowManager::get_cursor(String const& name)
{
static auto const s_default_cursor_path = "/res/cursors/arrow.x2y2.png";
auto path = m_config->read_entry("Cursor", name, s_default_cursor_path);
auto gb = Gfx::Bitmap::load_from_file(path, compositor_icon_scale());
if (gb)
return Cursor::create(*gb, path);
return Cursor::create(*Gfx::Bitmap::load_from_file(s_default_cursor_path), s_default_cursor_path);
return Cursor::create(m_config->read_entry("Cursor", name, s_default_cursor_path), s_default_cursor_path);
}
void WindowManager::reload_config()
@ -1179,7 +1175,7 @@ void WindowManager::process_key_event(KeyEvent& event)
}
if (event.type() == Event::KeyDown && (event.modifiers() == (Mod_Ctrl | Mod_Super | Mod_Shift) && event.key() == Key_I)) {
reload_icon_bitmaps_after_scale_change(!m_allow_hidpi_icons);
reload_icon_bitmaps_after_scale_change();
Compositor::the().invalidate_screen();
return;
}
@ -1595,16 +1591,8 @@ Gfx::IntPoint WindowManager::get_recommended_window_position(Gfx::IntPoint const
return point;
}
int WindowManager::compositor_icon_scale() const
void WindowManager::reload_icon_bitmaps_after_scale_change()
{
if (!m_allow_hidpi_icons)
return 1;
return Screen::main().scale_factor(); // TODO: There is no *one* scale factor...
}
void WindowManager::reload_icon_bitmaps_after_scale_change(bool allow_hidpi_icons)
{
m_allow_hidpi_icons = allow_hidpi_icons;
reload_config();
m_window_stack.for_each_window([&](Window& window) {
auto& window_frame = window.frame();