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https://github.com/LadybirdBrowser/ladybird.git
synced 2024-09-21 10:19:03 +03:00
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outdated and difficult to reason about.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.
73 lines
2.0 KiB
C++
73 lines
2.0 KiB
C++
#include "SampleWidget.h"
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#include <LibAudio/ABuffer.h>
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#include <LibAudio/AClientConnection.h>
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#include <LibAudio/AWavLoader.h>
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#include <LibCore/CTimer.h>
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#include <LibGUI/GApplication.h>
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#include <LibGUI/GBoxLayout.h>
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#include <LibGUI/GButton.h>
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#include <LibGUI/GWidget.h>
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#include <LibGUI/GWindow.h>
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#include <stdio.h>
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int main(int argc, char** argv)
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{
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if (argc != 2) {
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printf("usage: %s <wav-file>\n", argv[0]);
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return 0;
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}
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GApplication app(argc, argv);
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String path = argv[1];
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AWavLoader loader(path);
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if (loader.has_error()) {
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fprintf(stderr, "Failed to load WAV file: %s (%s)\n", path.characters(), loader.error_string());
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return 1;
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}
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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("SoundPlayer");
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window->set_rect(300, 300, 300, 200);
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auto widget = GWidget::construct();
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window->set_main_widget(widget);
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widget->set_fill_with_background_color(true);
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widget->set_layout(make<GBoxLayout>(Orientation::Vertical));
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widget->layout()->set_margins({ 2, 2, 2, 2 });
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auto sample_widget = SampleWidget::construct(widget);
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auto button = GButton::construct("Quit", widget);
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button->set_size_policy(SizePolicy::Fill, SizePolicy::Fixed);
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button->set_preferred_size(0, 20);
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button->on_click = [&](auto&) {
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app.quit();
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};
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auto next_sample_buffer = loader.get_more_samples();
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auto timer = CTimer::construct(100, [&] {
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if (!next_sample_buffer) {
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sample_widget->set_buffer(nullptr);
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return;
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}
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bool enqueued = audio_client->try_enqueue(*next_sample_buffer);
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if (!enqueued)
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return;
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sample_widget->set_buffer(next_sample_buffer);
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next_sample_buffer = loader.get_more_samples(16 * KB);
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if (!next_sample_buffer) {
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dbg() << "Exhausted samples :^)";
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}
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});
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window->show();
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return app.exec();
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}
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