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GSlider: Add support for vertical sliders.

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You now have to pass an Orientation to the GSlider constructor. It's not
possible to change the orientation after construction.

Added some vertical GSliders to the WidgetGallery demo for testing. :^)
This commit is contained in:
Andreas Kling 2019-07-20 16:52:39 +02:00
parent 8ab1923abe
commit c59b053ad6
5 changed files with 70 additions and 41 deletions
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26
Libraries/LibGUI/GSlider.h
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@ -4,11 +4,16 @@
class GSlider : public GWidget {
public:
enum class KnobSizeMode { Fixed, Proportional };
enum class KnobSizeMode {
Fixed,
Proportional,
};
explicit GSlider(GWidget*);
GSlider(Orientation, GWidget*);
virtual ~GSlider() override;
Orientation orientation() const { return m_orientation; }
int value() const { return m_value; }
int min() const { return m_min; }
int max() const { return m_max; }
@ -22,12 +27,18 @@ public:
void set_knob_size_mode(KnobSizeMode mode) { m_knob_size_mode = mode; }
KnobSizeMode knob_size_mode() const { return m_knob_size_mode; }
int track_height() const { return 2; }
int knob_fixed_width() const { return 8; }
int knob_height() const { return 20; }
int track_size() const { return 2; }
int knob_fixed_primary_size() const { return 8; }
int knob_secondary_size() const { return 20; }
Rect knob_rect() const;
Rect inner_rect() const { return rect().shrunken(20, 0); }
Rect inner_rect() const
{
if (orientation() == Orientation::Horizontal)
return rect().shrunken(20, 0);
return rect().shrunken(0, 20);
}
Function<void(int)> on_value_changed;
@ -45,11 +56,10 @@ private:
int m_value { 0 };
int m_min { 0 };
int m_max { 100 };
bool m_knob_hovered { false };
bool m_dragging { false };
int m_drag_origin_value { 0 };
Point m_drag_origin;
KnobSizeMode m_knob_size_mode { KnobSizeMode::Fixed };
Orientation m_orientation { Orientation::Horizontal };
};