PresenterScrollBar.hxx

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#ifndef INCLUDED_SDEXT_SOURCE_PRESENTER_PRESENTERSCROLLBAR_HXX
#define INCLUDED_SDEXT_SOURCE_PRESENTER_PRESENTERSCROLLBAR_HXX
 
#include "PresenterBitmapContainer.hxx"
#include <com/sun/star/awt/XWindow.hpp>
#include <com/sun/star/drawing/XPresenterHelper.hpp>
#include <com/sun/star/rendering/XCanvas.hpp>
#include <com/sun/star/uno/XComponentContext.hpp>
#include <cppuhelper/basemutex.hxx>
#include <cppuhelper/compbase.hxx>
 
#include <functional>
#include <memory>
 
namespace sdext::presenter {
 
class PresenterCanvasHelper;
class PresenterPaintManager;
 
typedef ::cppu::WeakComponentImplHelper <
    css::awt::XWindowListener,
    css::awt::XPaintListener,
    css::awt::XMouseListener,
    css::awt::XMouseMotionListener
> PresenterScrollBarInterfaceBase;
 
class PresenterScrollBar
    : private ::cppu::BaseMutex,
      public PresenterScrollBarInterfaceBase
{
public:
    virtual ~PresenterScrollBar() override;
    PresenterScrollBar(const PresenterScrollBar&) = delete;
    PresenterScrollBar& operator=(const PresenterScrollBar&) = delete;
 
    virtual void SAL_CALL disposing() override;
 
    css::uno::Reference<css::uno::XComponentContext> const&
        GetComponentContext() const { return mxComponentContext; }
 
    void SetVisible (const bool bIsVisible);
 
    void SetPosSize (const css::geometry::RealRectangle2D& rBox);
 
    void SetThumbPosition (
        double nPosition,
        const bool bAsynchronousRepaint);
 
    double GetThumbPosition() const { return mnThumbPosition;}
 
    void SetTotalSize (const double nTotalSize);
 
    void SetThumbSize (const double nThumbSize);
    double GetThumbSize() const { return mnThumbSize;}
 
    void SetLineHeight (const double nLineHeight);
    double GetLineHeight() const { return mnLineHeight;}
 
    void SetCanvas (const css::uno::Reference<css::rendering::XCanvas>& rxCanvas);
 
    void SetBackground (const SharedBitmapDescriptor& rpBackgroundBitmap);
 
    void CheckValues();
 
    void Paint (
        const css::awt::Rectangle& rUpdateBox);
 
    virtual sal_Int32 GetSize() const = 0;
 
    // XWindowListener
 
    virtual void SAL_CALL windowResized (const css::awt::WindowEvent& rEvent) override;
 
    virtual void SAL_CALL windowMoved (const css::awt::WindowEvent& rEvent) override;
 
    virtual void SAL_CALL windowShown (const css::lang::EventObject& rEvent) override;
 
    virtual void SAL_CALL windowHidden (const css::lang::EventObject& rEvent) override;
 
    // XPaintListener
 
    virtual void SAL_CALL windowPaint (const css::awt::PaintEvent& rEvent) override;
 
    // XMouseListener
 
    virtual void SAL_CALL mousePressed (const css::awt::MouseEvent& rEvent) override;
 
    virtual void SAL_CALL mouseReleased (const css::awt::MouseEvent& rEvent) override;
 
    virtual void SAL_CALL mouseEntered (const css::awt::MouseEvent& rEvent) override;
 
    virtual void SAL_CALL mouseExited (const css::awt::MouseEvent& rEvent) override;
 
    // XMouseMotionListener
 
    virtual void SAL_CALL mouseMoved (const css::awt::MouseEvent& rEvent) override;
 
    virtual void SAL_CALL mouseDragged (const css::awt::MouseEvent& rEvent) override;
 
    // lang::XEventListener
    virtual void SAL_CALL disposing (const css::lang::EventObject& rEvent) override;
 
    enum Area { Total, Pager, Thumb, PagerUp, PagerDown, PrevButton, NextButton, None,
                AreaCount = None };
 
protected:
    css::uno::Reference<css::uno::XComponentContext> mxComponentContext;
    css::uno::Reference<css::awt::XWindow> mxWindow;
    css::uno::Reference<css::rendering::XCanvas> mxCanvas;
    css::uno::Reference<css::drawing::XPresenterHelper> mxPresenterHelper;
    std::shared_ptr<PresenterPaintManager> mpPaintManager;
    double mnThumbPosition;
    double mnTotalSize;
    double mnThumbSize;
    double mnLineHeight;
    css::geometry::RealPoint2D maDragAnchor;
    ::std::function<void (double)> maThumbMotionListener;
    Area meButtonDownArea;
    Area meMouseMoveArea;
    css::geometry::RealRectangle2D maBox[AreaCount];
    bool mbIsNotificationActive;
    static std::weak_ptr<PresenterBitmapContainer> mpSharedBitmaps;
    std::shared_ptr<PresenterBitmapContainer> mpBitmaps;
    SharedBitmapDescriptor mpPrevButtonDescriptor;
    SharedBitmapDescriptor mpNextButtonDescriptor;
    SharedBitmapDescriptor mpPagerStartDescriptor;
    SharedBitmapDescriptor mpPagerCenterDescriptor;
    SharedBitmapDescriptor mpPagerEndDescriptor;
    SharedBitmapDescriptor mpThumbStartDescriptor;
    SharedBitmapDescriptor mpThumbCenterDescriptor;
    SharedBitmapDescriptor mpThumbEndDescriptor;
    bool maEnabledState[AreaCount];
 
    css::geometry::RealRectangle2D const & GetRectangle (const Area eArea) const;
    virtual double GetDragDistance (const sal_Int32 nX, const sal_Int32 nY) const = 0;
    virtual void UpdateDragAnchor (const double nDragDistance) = 0;
    virtual double GetMinor (const double nX, const double nY) const = 0;
    virtual void UpdateBorders() = 0;
    virtual void UpdateBitmaps() = 0;
    virtual void PaintComposite(
        const css::awt::Rectangle& rRepaintBox,
        const Area eArea,
        const SharedBitmapDescriptor& rpStartBitmaps,
        const SharedBitmapDescriptor& rpCenterBitmaps,
        const SharedBitmapDescriptor& rpEndBitmaps) = 0;
 
    PresenterScrollBar (
        const css::uno::Reference<css::uno::XComponentContext>& rxComponentContext,
        const css::uno::Reference<css::awt::XWindow>& rxParentWindow,
        std::shared_ptr<PresenterPaintManager> xPaintManager,
        ::std::function<void (double)>  aThumbMotionListener);
 
    void Repaint (
        const css::geometry::RealRectangle2D& rBox,
        const bool bAsynchronous);
    void PaintBackground (
        const css::awt::Rectangle& rRepaintBox);
    void PaintBitmap(
        const css::awt::Rectangle& rRepaintBox,
        const Area eArea,
        const SharedBitmapDescriptor& rpBitmaps);
    void UpdateWidthOrHeight (sal_Int32& rSize,
        const SharedBitmapDescriptor& rpDescriptor);
    css::uno::Reference<css::rendering::XBitmap> GetBitmap (
        const Area eArea,
        const SharedBitmapDescriptor& rpBitmaps) const;
    PresenterBitmapContainer::BitmapDescriptor::Mode GetBitmapMode (
        const Area eArea) const;
    bool IsDisabled (const Area eArea) const;
    double ValidateThumbPosition (double nPosition);
 
private:
    class MousePressRepeater;
    std::shared_ptr<MousePressRepeater> mpMousePressRepeater;
    SharedBitmapDescriptor mpBackgroundBitmap;
    std::unique_ptr<PresenterCanvasHelper> mpCanvasHelper;
 
    Area GetArea (const double nX, const double nY) const;
};
 
class PresenterVerticalScrollBar : public PresenterScrollBar
{
public:
    PresenterVerticalScrollBar (
        const css::uno::Reference<css::uno::XComponentContext>& rxComponentContext,
        const css::uno::Reference<css::awt::XWindow>& rxParentWindow,
        const std::shared_ptr<PresenterPaintManager>& rpPaintManager,
        const ::std::function<void (double)>& rThumbMotionListener);
    virtual ~PresenterVerticalScrollBar() override;
    virtual sal_Int32 GetSize() const override;
 
protected:
    virtual double GetDragDistance (const sal_Int32 nX, const sal_Int32 nY) const override;
    virtual void UpdateDragAnchor (const double nDragDistance) override;
    virtual double GetMinor (const double nX, const double nY) const override;
    virtual void UpdateBorders() override;
    virtual void UpdateBitmaps() override;
    virtual void PaintComposite(
        const css::awt::Rectangle& rRepaintBox,
        const Area eArea,
        const SharedBitmapDescriptor& rpStartBitmaps,
        const SharedBitmapDescriptor& rpCenterBitmaps,
        const SharedBitmapDescriptor& rpEndBitmaps) override;
 
private:
    sal_Int32 mnScrollBarWidth;
};
 
} // end of namespace ::sdext::presenter
 
#endif
 
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