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Cube: Add an option to render a frameless cube

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Tom 2021-02-20 23:14:15 -07:00 committed by Andreas Kling
parent 7143a6026d
commit 5d2159ee24
Notes: sideshowbarker 2024-07-18 22:04:10 +09:00 
Author: https://github.com/tomuta
Commit: https://github.com/SerenityOS/serenity/commit/5d2159ee240
Pull-request: https://github.com/SerenityOS/serenity/pull/5445
1 changed files with 52 additions and 3 deletions
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53
Userland/Demos/Cube/Cube.cpp
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@ -28,6 +28,8 @@
#include <LibGUI/Application.h>
#include <LibGUI/Icon.h>
#include <LibGUI/Label.h>
#include <LibGUI/Menu.h>
#include <LibGUI/MenuBar.h>
#include <LibGUI/Painter.h>
#include <LibGUI/Widget.h>
#include <LibGUI/Window.h>
@ -47,9 +49,21 @@ class Cube final : public GUI::Widget {
public:
virtual ~Cube() override;
void set_stat_label(RefPtr<GUI::Label> l) { m_stats = l; };
void set_show_window_frame(bool);
bool show_window_frame() const { return m_show_window_frame; }
Function<void(GUI::ContextMenuEvent&)> on_context_menu_request;
protected:
virtual void context_menu_event(GUI::ContextMenuEvent& event) override
{
if (on_context_menu_request)
on_context_menu_request(event);
}
private:
Cube();
RefPtr<Gfx::Bitmap> m_bitmap;
RefPtr<GUI::Label> m_stats;
@ -59,6 +73,7 @@ private:
int m_accumulated_time;
int m_cycles;
int m_phase;
bool m_show_window_frame { true };
};
Cube::Cube()
@ -143,7 +158,10 @@ void Cube::timer_event(Core::TimerEvent&)
}
GUI::Painter painter(*m_bitmap);
if (m_show_window_frame)
painter.fill_rect_with_gradient(Gfx::Orientation::Vertical, m_bitmap->rect(), Gfx::Color::White, Gfx::Color::Blue);
else
painter.clear_rect(m_bitmap->rect(), Gfx::Color::Transparent);
auto to_point = [](const FloatVector3& v) {
return Gfx::IntPoint(v.x(), v.y());
@ -189,6 +207,18 @@ void Cube::timer_event(Core::TimerEvent&)
m_cycles++;
}
void Cube::set_show_window_frame(bool show)
{
if (show == m_show_window_frame)
return;
m_show_window_frame = show;
m_stats->set_visible(m_show_window_frame);
auto& w = *window();
w.set_frameless(!m_show_window_frame);
w.set_has_alpha_channel(!m_show_window_frame);
w.set_alpha_hit_threshold(m_show_window_frame ? 0 : 1);
}
int main(int argc, char** argv)
{
auto app = GUI::Application::construct(argc, argv);
@ -213,6 +243,8 @@ int main(int argc, char** argv)
window->set_title("Cube");
window->set_resizable(false);
window->resize(WIDTH, HEIGHT);
window->set_has_alpha_channel(true);
window->set_alpha_hit_threshold(1);
auto& cube = window->set_main_widget<Cube>();
@ -221,10 +253,27 @@ int main(int argc, char** argv)
time.move_by({ window->width() - time.width(), 0 });
cube.set_stat_label(time);
window->show();
auto app_icon = GUI::Icon::default_icon("app-cube");
window->set_icon(app_icon.bitmap_for_size(16));
auto menubar = GUI::MenuBar::construct();
auto& app_menu = menubar->add_menu("Cube Demo");
auto show_window_frame_action = GUI::Action::create_checkable("Show window frame", [&](auto& action) {
cube.set_show_window_frame(action.is_checked());
});
show_window_frame_action->set_checked(cube.show_window_frame());
app_menu.add_action(move(show_window_frame_action));
app_menu.add_separator();
app_menu.add_action(GUI::CommonActions::make_quit_action([&](auto&) { app->quit(); }));
auto& help_menu = menubar->add_menu("Help");
help_menu.add_action(GUI::CommonActions::make_about_action("Cube Demo", app_icon, window));
app->set_menubar(move(menubar));
cube.on_context_menu_request = [&](auto& event) {
app_menu.popup(event.screen_position());
};
window->show();
return app->exec();
}