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+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed
+ * with this work for additional information regarding copyright
+ * ownership. The ASF licenses this file to you under the Apache
+ * License, Version 2.0 (the "License"); you may not use this file
+ * except in compliance with the License. You may obtain a copy of
+ * the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#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;
+
+/** Base class of horizontal and vertical scroll bars.
+*/
+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);
+
+ /** Set the bounding box of the scroll bar.
+ */
+ void SetPosSize (const css::geometry::RealRectangle2D& rBox);
+
+ /** Set the position of the movable thumb.
+ @param nPosition
+ A value between 0 and the last value given to SetTotalSize()
+ minus the last value given to SetThumbSize().
+ */
+ void SetThumbPosition (
+ double nPosition,
+ const bool bAsynchronousRepaint);
+
+ double GetThumbPosition() const { return mnThumbPosition;}
+
+ /** Set the upper border of the slider range.
+ */
+ void SetTotalSize (const double nTotalSize);
+
+ /** Set the size of the movable thumb.
+ @param nThumbSize
+ A value not larger than the last value given to SetTotalSize().
+ */
+ void SetThumbSize (const double nThumbSize);
+ double GetThumbSize() const { return mnThumbSize;}
+
+ void SetLineHeight (const double nLineHeight);
+ double GetLineHeight() const { return mnLineHeight;}
+
+ /** Set the canvas that is used for painting the scroll bar.
+ */
+ void SetCanvas (const css::uno::Reference<css::rendering::XCanvas>& rxCanvas);
+
+ void SetBackground (const SharedBitmapDescriptor& rpBackgroundBitmap);
+
+ /** Call this after changing total size or thumb position or size to
+ move the thumb to a valid position.
+ */
+ void CheckValues();
+
+ /** On some occasions it is necessary to trigger the painting of a
+ scrollbar from the outside.
+ */
+ 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,
+ const std::shared_ptr<PresenterPaintManager>& rpPaintManager,
+ const ::std::function<void (double)>& rThumbMotionListener);
+
+ 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;
+};
+
+/** A vertical scroll bar.
+*/
+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
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */