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LibGUI: Add a GSlider widget.

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This commit is contained in:
Andreas Kling 2019-04-29 19:20:34 +02:00
parent 65f2f19b41
commit 9c6be9b21e
3 changed files with 147 additions and 0 deletions
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40
LibGUI/GSlider.h Normal file
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#pragma once
#include <LibGUI/GWidget.h>
class GSlider : public GWidget {
public:
explicit GSlider(GWidget*);
virtual ~GSlider() override;
int value() const { return m_value; }
int min() const { return m_min; }
int max() const { return m_max; }
void set_range(int min, int max);
void set_value(int);
int track_height() const { return 4; }
int knob_width() const { return 8; }
int knob_height() const { return 20; }
Rect knob_rect() const;
Rect inner_rect() const { return rect().shrunken(20, 0); }
Function<void(int)> on_value_changed;
protected:
virtual void paint_event(GPaintEvent&) override;
virtual void mousedown_event(GMouseEvent&) override;
virtual void mousemove_event(GMouseEvent&) override;
virtual void mouseup_event(GMouseEvent&) override;
private:
int m_value { 0 };
int m_min { 0 };
int m_max { 100 };
bool m_dragging { false };
int m_drag_origin_value { 0 };
Point m_drag_origin;
};