mirror of
https://github.com/fergalmoran/ladybird.git
synced 2026-01-06 16:45:03 +00:00
bc319d9e88
Okay, I've spent a whole day on this now, and it finally kinda works!
With this patch, CObject and all of its derived classes are reference
counted instead of tree-owned.
The previous, Qt-like model was nice and familiar, but ultimately also
outdated and difficult to reason about.
CObject-derived types should now be stored in RefPtr/NonnullRefPtr and
each class can be constructed using the forwarding construct() helper:
auto widget = GWidget::construct(parent_widget);
Note that construct() simply forwards all arguments to an existing
constructor. It is inserted into each class by the C_OBJECT macro,
see CObject.h to understand how that works.
CObject::delete_later() disappears in this patch, as there is no longer
a single logical owner of a CObject.
59 lines
1.7 KiB
C++
59 lines
1.7 KiB
C++
#include "Music.h"
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#include "PianoWidget.h"
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#include <LibAudio/AClientConnection.h>
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#include <LibCore/CFile.h>
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#include <LibDraw/PNGLoader.h>
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#include <LibGUI/GAction.h>
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#include <LibGUI/GApplication.h>
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#include <LibGUI/GEventLoop.h>
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#include <LibGUI/GMenu.h>
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#include <LibGUI/GMenuBar.h>
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#include <LibGUI/GWindow.h>
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#include <LibThread/Thread.h>
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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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auto audio_client = AClientConnection::construct();
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audio_client->handshake();
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auto window = GWindow::construct();
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window->set_title("Piano");
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window->set_rect(100, 100, 512, 512);
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auto piano_widget = PianoWidget::construct();
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window->set_main_widget(piano_widget);
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window->show();
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window->set_icon(load_png("/res/icons/16x16/app-piano.png"));
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LibThread::Thread sound_thread([piano_widget = piano_widget.ptr()] {
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auto audio = CFile::construct("/dev/audio");
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if (!audio->open(CIODevice::WriteOnly)) {
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dbgprintf("Can't open audio device: %s", audio->error_string());
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return 1;
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}
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for (;;) {
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u8 buffer[4096];
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piano_widget->fill_audio_buffer(buffer, sizeof(buffer));
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audio->write(buffer, sizeof(buffer));
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GEventLoop::current().post_event(*piano_widget, make<CCustomEvent>(0));
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GEventLoop::wake();
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}
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});
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sound_thread.start();
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auto menubar = make<GMenuBar>();
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auto app_menu = make<GMenu>("Piano");
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app_menu->add_action(GCommonActions::make_quit_action([](auto&) {
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GApplication::the().quit(0);
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return;
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}));
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menubar->add_menu(move(app_menu));
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app.set_menubar(move(menubar));
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return app.exec();
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}
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