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Code Issues Activity Actions

Screensaver: Disable double buffering and hide cursor

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This commit is contained in:
Brendan Coles 2021-01-05 11:31:12 +00:00 • committed by Andreas Kling
parent 92fe63fbec
commit 41c4ce3c58
1 changed files with 21 additions and 20 deletions
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41
Demos/Screensaver/Screensaver.cpp
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@ -24,8 +24,6 @@
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/ */
#include <LibCore/ElapsedTimer.h>
#include <LibGUI/Action.h>
#include <LibGUI/Application.h> #include <LibGUI/Application.h>
#include <LibGUI/Event.h> #include <LibGUI/Event.h>
#include <LibGUI/Icon.h> #include <LibGUI/Icon.h>
@ -36,17 +34,13 @@
#include <stdio.h> #include <stdio.h>
#include <time.h> #include <time.h>
#define WIDTH 64
#define HEIGHT 48
#define INTERVAL 10000
class Screensaver final : public GUI::Widget { class Screensaver final : public GUI::Widget {
C_OBJECT(Screensaver) C_OBJECT(Screensaver)
public: public:
virtual ~Screensaver() override; virtual ~Screensaver() override;
private: private:
Screensaver(); Screensaver(int width = 64, int height = 48, int interval = 10000);
RefPtr<Gfx::Bitmap> m_bitmap; RefPtr<Gfx::Bitmap> m_bitmap;
void draw(); void draw();
@ -57,12 +51,12 @@ private:
virtual void mousemove_event(GUI::MouseEvent& event) override; virtual void mousemove_event(GUI::MouseEvent& event) override;
}; };
Screensaver::Screensaver() Screensaver::Screensaver(int width, int height, int interval)
{ {
m_bitmap = Gfx::Bitmap::create(Gfx::BitmapFormat::RGB32, { WIDTH, HEIGHT }); m_bitmap = Gfx::Bitmap::create(Gfx::BitmapFormat::RGB32, { width, height });
srand(time(nullptr)); srand(time(nullptr));
stop_timer(); stop_timer();
start_timer(INTERVAL); start_timer(interval);
draw(); draw();
} }
@ -93,9 +87,8 @@ void Screensaver::paint_event(GUI::PaintEvent& event)
void Screensaver::timer_event(Core::TimerEvent&) void Screensaver::timer_event(Core::TimerEvent&)
{ {
Core::ElapsedTimer timer;
timer.start();
draw(); draw();
update();
} }
void Screensaver::draw() void Screensaver::draw()
@ -104,7 +97,6 @@ void Screensaver::draw()
Color::Blue, Color::Blue,
Color::Cyan, Color::Cyan,
Color::Green, Color::Green,
Color::LightGray,
Color::Magenta, Color::Magenta,
Color::Red, Color::Red,
Color::Yellow, Color::Yellow,
@ -128,12 +120,15 @@ void Screensaver::draw()
m_bitmap->rect(), m_bitmap->rect(),
colors[start_color_index], colors[start_color_index],
colors[end_color_index]); colors[end_color_index]);
update();
} }
int main(int argc, char** argv) int main(int argc, char** argv)
{ {
if (pledge("stdio rpath wpath cpath shared_buffer cpath unix fattr", nullptr) < 0) {
perror("pledge");
return 1;
}
auto app = GUI::Application::construct(argc, argv); auto app = GUI::Application::construct(argc, argv);
if (pledge("stdio rpath shared_buffer", nullptr) < 0) { if (pledge("stdio rpath shared_buffer", nullptr) < 0) {
@ -151,19 +146,25 @@ int main(int argc, char** argv)
return 1; return 1;
} }
auto app_icon = GUI::Icon::default_icon("app-screensaver");
auto window = GUI::Window::construct(); auto window = GUI::Window::construct();
window->set_double_buffering_enabled(true); window->set_double_buffering_enabled(false);
window->set_title("Screensaver"); window->set_title("Screensaver");
window->set_resizable(false); window->set_resizable(false);
window->set_frameless(true);
window->set_fullscreen(true); window->set_fullscreen(true);
window->set_minimizable(false);
window->set_icon(app_icon.bitmap_for_size(16));
auto& screensaver_window = window->set_main_widget<Screensaver>(); auto& screensaver_window = window->set_main_widget<Screensaver>(64, 48, 10000);
screensaver_window.set_fill_with_background_color(false);
screensaver_window.set_override_cursor(Gfx::StandardCursor::Hidden);
screensaver_window.update(); screensaver_window.update();
window->show(); window->show();
window->move_to_front();
auto app_icon = GUI::Icon::default_icon("app-screensaver"); window->set_cursor(Gfx::StandardCursor::Hidden);
window->set_icon(app_icon.bitmap_for_size(16)); window->update();
return app->exec(); return app->exec();
} }