133 lines
2.8 KiB
C++
133 lines
2.8 KiB
C++
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#ifndef _STAR_SCROLL_AREA_HPP_
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#define _STAR_SCROLL_AREA_HPP_
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#include "StarWidget.hpp"
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#include "StarButtonWidget.hpp"
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#include "StarImageWidget.hpp"
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namespace Star {
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class ScrollThumb : public Widget {
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public:
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ScrollThumb(GuiDirection direction);
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virtual ~ScrollThumb() {}
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void setDirection(GuiDirection direction);
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void setImages(ImageStretchSet const& base,
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ImageStretchSet const& hover = ImageStretchSet(),
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ImageStretchSet const& pressed = ImageStretchSet());
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void setImages(Json const& images);
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bool isHovered() const;
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bool isPressed() const;
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void setHovered(bool hovered);
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void setPressed(bool pressed);
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void mouseOver() override;
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void mouseOut() override;
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Vec2U baseSize() const;
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protected:
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virtual void renderImpl() override;
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private:
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void readDefaults();
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GuiDirection m_direction;
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ImageStretchSet m_baseThumb;
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ImageStretchSet m_hoverThumb;
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ImageStretchSet m_pressedThumb;
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bool m_hovered;
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bool m_pressed;
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};
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typedef shared_ptr<ScrollThumb> ScrollThumbPtr;
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class ScrollBar : public Widget {
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public:
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ScrollBar(GuiDirection direction, WidgetCallbackFunc forwardFunc, WidgetCallbackFunc backwardFunc);
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void setButtonImages(Json const& images);
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int trackSize() const;
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float sizeRatio() const;
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virtual Vec2I size() const override;
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float scrollRatio() const;
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Vec2I offsetFromThumbPosition(Vec2I const& thumbPosition) const;
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ButtonWidgetPtr forwardButton() const;
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ButtonWidgetPtr backwardButton() const;
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ScrollThumbPtr thumb() const;
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protected:
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void drawChildren() override;
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private:
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GuiDirection m_direction;
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ButtonWidgetPtr m_forward; // up or right, makes the offset higher
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ButtonWidgetPtr m_backward; // down or left, makes the offset lower
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ScrollThumbPtr m_thumb;
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ImageStretchSet m_track;
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};
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typedef shared_ptr<ScrollBar> ScrollBarPtr;
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class ScrollArea : public Widget {
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public:
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ScrollArea();
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void setButtonImages(Json const& images);
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void setThumbImages(Json const& images);
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RectI contentBoundRect() const;
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Vec2I contentSize() const;
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Vec2I areaSize() const;
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void scrollAreaBy(Vec2I const& offset);
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Vec2I scrollOffset() const;
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Vec2I maxScrollPosition() const;
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bool horizontalScroll() const;
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void setHorizontalScroll(bool horizontal);
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bool verticalScroll() const;
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void setVerticalScroll(bool vertical);
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virtual bool sendEvent(InputEvent const& event) override;
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virtual void update() override;
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protected:
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void drawChildren() override;
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private:
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int advanceFactorHelper();
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int m_buttonAdvance;
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int64_t m_advanceLimiter;
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Vec2I m_scrollOffset;
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Vec2I m_lastMaxScroll;
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Vec2I m_contentSize;
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bool m_dragActive;
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GuiDirection m_dragDirection;
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Vec2I m_dragOffset;
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ScrollBarPtr m_vBar;
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ScrollBarPtr m_hBar;
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ImageWidgetPtr m_cornerBlock;
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bool m_horizontalScroll;
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bool m_verticalScroll;
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};
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typedef shared_ptr<ScrollArea> ScrollAreaPtr;
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}
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#endif
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