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c6ffb3e2b8
That first design was the wrong idea. Instead, have VBWidget instantiate a GWidget of the appropriate type and parent it to the VBForm. We then use a new "greedy hit-testing" mechanism in GWidget to prevent any mouse events from reaching the VBForm's children. To paint the grabbers above the child widgets, I added a slightly hackish but kind of neat second_paint_event() that is called after a widget has painted all of his children. :^)
40 lines
1.2 KiB
C++
40 lines
1.2 KiB
C++
#pragma once
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#include <LibGUI/GWidget.h>
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#include <AK/Vector.h>
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#include "VBWidget.h"
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class VBForm : public GWidget {
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public:
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explicit VBForm(const String& name, GWidget* parent = nullptr);
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virtual ~VBForm() override;
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String name() const { return m_name; }
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void set_name(const String& name) { m_name = name; }
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bool is_selected(const VBWidget&) const;
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VBWidget* widget_at(const Point&);
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void set_should_snap_to_grip(bool snap) { m_should_snap_to_grid = snap; }
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bool should_snap_to_grid() const { return m_should_snap_to_grid; }
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protected:
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virtual void paint_event(GPaintEvent&) override;
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virtual void second_paint_event(GPaintEvent&) override;
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virtual void mousedown_event(GMouseEvent&) override;
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virtual void mousemove_event(GMouseEvent&) override;
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virtual void mouseup_event(GMouseEvent&) override;
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private:
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void grabber_mousedown_event(GMouseEvent&, VBWidget&, Direction grabber);
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String m_name;
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int m_grid_size { 5 };
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bool m_should_snap_to_grid { true };
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Vector<Retained<VBWidget>> m_widgets;
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WeakPtr<VBWidget> m_selected_widget;
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Point m_transform_event_origin;
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Rect m_transform_widget_origin_rect;
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Direction m_resize_direction { Direction::None };
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};
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