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LibGUI: Support dragging the GScrollBar scrubber.

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This was pleasantly easy to implement with the global mouse tracking. :^)
This commit is contained in:
Andreas Kling 2019-02-10 06:51:01 +01:00
parent 6b8af2f33a
commit 9ea2131adf
2 changed files with 48 additions and 9 deletions
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12
LibGUI/GScrollBar.h
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@ -24,19 +24,25 @@ public:
private:
virtual void paint_event(GPaintEvent&) override;
virtual void mousedown_event(GMouseEvent&) override;
virtual void mouseup_event(GMouseEvent&) override;
virtual void mousemove_event(GMouseEvent&) override;
virtual const char* class_name() const override { return "GScrollBar"; }
int button_size() const { return 16; }
Rect up_button_rect() const;
Rect down_button_rect() const;
Rect pgup_rect() const;
Rect pgdn_rect() const;
Rect upper_gutter_rect() const;
Rect lower_gutter_rect() const;
Rect scrubber_rect() const;
int scrubbable_range_in_pixels() const;
int m_min { 0 };
int m_max { 0 };
int m_value { 0 };
int m_step { 1 };
int m_big_step { 5 };
};
bool m_scrubbing { false };
int m_scrub_start_value { 0 };
Point m_scrub_origin;
};