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GScrollableWidget: Add to_content_position(Point)

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A handy helper function for converting a widget space coordinate into a
content space coordinate.
This commit is contained in:
Andreas Kling 2019-10-03 09:15:57 +02:00
parent f02c9aaac4
commit a181cae3e0
2 changed files with 10 additions and 0 deletions
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8
Libraries/LibGUI/GScrollableWidget.cpp
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@ -180,3 +180,11 @@ Rect GScrollableWidget::widget_inner_rect() const
rect.set_height(rect.height() - height_occupied_by_horizontal_scrollbar()); rect.set_height(rect.height() - height_occupied_by_horizontal_scrollbar());
return rect; return rect;
} }
Point GScrollableWidget::to_content_position(const Point& widget_position) const
{
auto content_position = widget_position;
content_position.move_by(horizontal_scrollbar().value(), vertical_scrollbar().value());
content_position.move_by(-frame_thickness(), -frame_thickness());
return content_position;
}

2
Libraries/LibGUI/GScrollableWidget.h
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@ -41,6 +41,8 @@ public:
void set_should_hide_unnecessary_scrollbars(bool b) { m_should_hide_unnecessary_scrollbars = b; } void set_should_hide_unnecessary_scrollbars(bool b) { m_should_hide_unnecessary_scrollbars = b; }
bool should_hide_unnecessary_scrollbars() const { return m_should_hide_unnecessary_scrollbars; } bool should_hide_unnecessary_scrollbars() const { return m_should_hide_unnecessary_scrollbars; }
Point to_content_position(const Point& widget_position) const;
protected: protected:
explicit GScrollableWidget(GWidget* parent); explicit GScrollableWidget(GWidget* parent);
virtual void custom_layout() override; virtual void custom_layout() override;