| /* |
| * Copyright (C) 2004, 2005, 2006, 2007 Apple Inc. All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * |
| * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY |
| * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
| * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR |
| * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, |
| * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
| * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR |
| * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY |
| * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| #ifndef PlatformScrollbar_h |
| #define PlatformScrollbar_h |
| |
| #include "Widget.h" |
| #include "ScrollBar.h" |
| #include "Timer.h" |
| |
| typedef struct HDC__* HDC; |
| |
| namespace WebCore { |
| |
| enum ScrollbarPart { NoPart, BackButtonPart, BackTrackPart, ThumbPart, ForwardTrackPart, ForwardButtonPart }; |
| |
| class PlatformScrollbar : public Widget, public Scrollbar { |
| public: |
| PlatformScrollbar(ScrollbarClient*, ScrollbarOrientation, ScrollbarControlSize); |
| |
| virtual ~PlatformScrollbar(); |
| |
| virtual bool isWidget() const { return true; } |
| |
| virtual void setParent(ScrollView*); |
| |
| virtual int width() const; |
| virtual int height() const; |
| virtual void setRect(const IntRect&); |
| virtual void setEnabled(bool); |
| virtual void paint(GraphicsContext*, const IntRect& damageRect); |
| |
| virtual bool handleMouseMoveEvent(const PlatformMouseEvent&); |
| virtual bool handleMouseOutEvent(const PlatformMouseEvent&); |
| virtual bool handleMousePressEvent(const PlatformMouseEvent&); |
| virtual bool handleMouseReleaseEvent(const PlatformMouseEvent&); |
| |
| virtual IntRect windowClipRect() const; |
| |
| static void themeChanged(); |
| static int horizontalScrollbarHeight(ScrollbarControlSize size = RegularScrollbar); |
| static int verticalScrollbarWidth(ScrollbarControlSize size = RegularScrollbar); |
| |
| void autoscrollTimerFired(Timer<PlatformScrollbar>*); |
| |
| protected: |
| virtual void updateThumbPosition(); |
| virtual void updateThumbProportion(); |
| |
| private: |
| bool hasButtons() const; |
| bool hasThumb() const; |
| IntRect backButtonRect() const; |
| IntRect forwardButtonRect() const; |
| IntRect trackRect() const; |
| IntRect thumbRect() const; |
| IntRect gripperRect(const IntRect& thumbRect) const; |
| void splitTrack(const IntRect& trackRect, IntRect& beforeThumbRect, IntRect& thumbRect, IntRect& afterThumbRect) const; |
| |
| int thumbPosition() const; |
| int thumbLength() const; |
| int trackLength() const; |
| |
| void paintButton(GraphicsContext*, const IntRect& buttonRect, bool start, const IntRect& damageRect) const; |
| void paintTrack(GraphicsContext*, const IntRect& trackRect, bool start, const IntRect& damageRect) const; |
| void paintThumb(GraphicsContext*, const IntRect& thumbRect, const IntRect& damageRect) const; |
| void paintGripper(HDC, const IntRect& gripperRect) const; |
| |
| ScrollbarPart hitTest(const PlatformMouseEvent&); |
| |
| void startTimerIfNeeded(double delay); |
| void stopTimerIfNeeded(); |
| void autoscrollPressedPart(double delay); |
| ScrollDirection pressedPartScrollDirection(); |
| ScrollGranularity pressedPartScrollGranularity(); |
| |
| bool thumbUnderMouse(); |
| |
| void invalidatePart(ScrollbarPart); |
| void invalidateTrack(); |
| |
| ScrollbarPart m_hoveredPart; |
| ScrollbarPart m_pressedPart; |
| int m_pressedPos; |
| Timer<PlatformScrollbar> m_scrollTimer; |
| bool m_overlapsResizer; |
| }; |
| |
| } |
| |
| #endif // PlatformScrollbar_h |
| |