mirror of
https://github.com/fergalmoran/ladybird.git
synced 2026-01-06 16:45:03 +00:00
9b71307d49
This patch also adds a Format concept to GraphicsBitmap. For now there are only two formats: RGB32 and RGBA32. Windows with alpha channel have their backing stores created in the RGBA32 format. Use this to make Terminal windows semi-transparent for that comfy rice look. There is one problem here, in that window compositing overdraw incurs multiple passes of blending of the same pixels. This leads to a mismatch in opacity which is obviously not good. I will work on this in a later patch. The alpha blending is currently straight C++. It should be relatively easy to optimize this using SSE instructions. For now I'm just happy with the cute effect. :^)
78 lines
2.1 KiB
C++
78 lines
2.1 KiB
C++
#include <SharedGraphics/GraphicsBitmap.h>
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#include <LibGUI/GWindow.h>
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#include <LibGUI/GWidget.h>
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#include <LibGUI/GButton.h>
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#include <LibGUI/GApplication.h>
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#include <sys/wait.h>
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#include <signal.h>
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#include <unistd.h>
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#include <stdio.h>
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#include <errno.h>
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static GWindow* make_launcher_window();
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void handle_sigchld(int)
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{
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dbgprintf("Launcher(%d) Got SIGCHLD\n", getpid());
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int pid = waitpid(-1, nullptr, 0);
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dbgprintf("Launcher(%d) waitpid() returned %d\n", getpid(), pid);
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ASSERT(pid > 0);
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}
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int main(int argc, char** argv)
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{
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GApplication app(argc, argv);
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signal(SIGCHLD, handle_sigchld);
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auto* launcher_window = make_launcher_window();
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launcher_window->set_should_exit_app_on_close(true);
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launcher_window->show();
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return app.exec();
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}
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class LauncherButton final : public GButton {
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public:
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LauncherButton(const String& icon_path, const String& exec_path, GWidget* parent)
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: GButton(parent)
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, m_executable_path(exec_path)
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{
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set_icon(GraphicsBitmap::load_from_file(GraphicsBitmap::Format::RGBA32, icon_path, { 32, 32 }));
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resize(50, 50);
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on_click = [this] (GButton&) {
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pid_t child_pid = fork();
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if (!child_pid) {
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int rc = execl(m_executable_path.characters(), m_executable_path.characters(), nullptr);
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if (rc < 0)
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perror("execl");
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}
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};
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}
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virtual ~LauncherButton() { }
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private:
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String m_executable_path;
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};
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GWindow* make_launcher_window()
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{
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auto* window = new GWindow;
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window->set_title("Launcher");
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window->set_rect(50, 50, 300, 60);
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auto* widget = new GWidget;
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window->set_main_widget(widget);
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auto* terminal_button = new LauncherButton("/res/icons/Terminal.rgb", "/bin/Terminal", widget);
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terminal_button->move_to(5, 5);
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auto* font_editor_button = new LauncherButton("/res/icons/FontEditor.rgb", "/bin/FontEditor", widget);
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font_editor_button->move_to(60, 5);
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auto* file_manager_button = new LauncherButton("/res/icons/FileManager.rgb", "/bin/FileManager", widget);
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file_manager_button->move_to(115, 5);
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return window;
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}
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