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https://github.com/RGBCube/serenity
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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outdated and difficult to reason about.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.
18 lines
442 B
C++
18 lines
442 B
C++
#include "WindowList.h"
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#include <LibGUI/GWidget.h>
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#include <LibGUI/GWindow.h>
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class TaskbarWindow final : public GWindow {
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C_OBJECT(TaskbarWindow)
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public:
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TaskbarWindow();
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virtual ~TaskbarWindow() override;
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int taskbar_height() const { return 28; }
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private:
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void on_screen_rect_change(const Rect&);
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NonnullRefPtr<GButton> create_button(const WindowIdentifier&);
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virtual void wm_event(GWMEvent&) override;
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};
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