2 * Copyright (C) 2008 Apple Inc. All Rights Reserved.
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
7 * 1. Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
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23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 #ifndef ScrollbarThemeGtk_h
27 #define ScrollbarThemeGtk_h
29 #include "ScrollbarThemeComposite.h"
35 class ScrollbarThemeGtk : public ScrollbarThemeComposite {
38 virtual ~ScrollbarThemeGtk();
40 virtual bool hasButtons(Scrollbar*) { return true; }
41 virtual bool hasThumb(Scrollbar*);
42 virtual IntRect backButtonRect(Scrollbar*, ScrollbarPart, bool);
43 virtual IntRect forwardButtonRect(Scrollbar*, ScrollbarPart, bool);
44 virtual IntRect trackRect(Scrollbar*, bool);
45 IntRect thumbRect(Scrollbar*, const IntRect& unconstrainedTrackRect);
46 bool paint(Scrollbar*, GraphicsContext*, const IntRect& damageRect);
47 void paintScrollbarBackground(GraphicsContext*, Scrollbar*);
48 void paintTrackBackground(GraphicsContext*, Scrollbar*, const IntRect&);
49 void paintThumb(GraphicsContext*, Scrollbar*, const IntRect&);
50 virtual void paintButton(GraphicsContext*, Scrollbar*, const IntRect&, ScrollbarPart);
51 virtual void paintScrollCorner(ScrollView*, GraphicsContext*, const IntRect&);
52 virtual bool shouldCenterOnThumb(Scrollbar*, const PlatformMouseEvent&);
53 virtual int scrollbarThickness(ScrollbarControlSize);
54 virtual IntSize buttonSize(Scrollbar*);
55 virtual int minimumThumbLength(Scrollbar*);
57 // TODO: These are the default GTK+ values. At some point we should pull these from the theme itself.
58 virtual double initialAutoscrollTimerDelay() { return 0.20; }
59 virtual double autoscrollTimerDelay() { return 0.02; }
60 void updateThemeProperties();
61 void updateScrollbarsFrameThickness();
62 void registerScrollbar(Scrollbar*);
63 void unregisterScrollbar(Scrollbar*);
66 #ifndef GTK_API_VERSION_2
67 GtkStyleContext* m_context;
70 int m_troughBorderWidth;
74 gboolean m_troughUnderSteppers;
75 gboolean m_hasForwardButtonStartPart;
76 gboolean m_hasBackButtonEndPart;