widget/src/qt/nsNativeThemeQt.h

   1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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   4  * Version: MPL 1.1/GPL 2.0/LGPL 2.1
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   6  * The contents of this file are subject to the Mozilla Public License Version
   7  * 1.1 (the "License"); you may not use this file except in compliance with
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   9  * http://www.mozilla.org/MPL/
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  16  * The Original Code is the Mozilla browser.
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  21  * the Initial Developer. All Rights Reserved.
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  23  * Contributor(s):
  24  *   Lars Knoll <knoll@kde.org>
  25  *   Zack Rusin <zack@kde.org>
  26  *   Tim Hill (tim@prismelite.com)
  27  *
  28  * Alternatively, the contents of this file may be used under the terms of
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  40  * ***** END LICENSE BLOCK ***** */
  41
  42 #include <QStyle>
  43 #include <QPalette>
  44
  45 #include "nsITheme.h"
  46 #include "nsCOMPtr.h"
  47 #include "nsIAtom.h"
  48 #include "nsNativeTheme.h"
  49 #include "nsIDeviceContext.h"
  50
  51 class QComboBox;
  52 class QStyleOptionButton;
  53 class QStyleOptionFrameV2;
  54 class QStyleOptionComboBox;
  55 class QRect;
  56 class nsIFrame;
  57
  58 class nsNativeThemeQt : private nsNativeTheme,
  59                         public nsITheme
  60 {
  61 public:
  62   NS_DECL_ISUPPORTS
  63
  64   // The nsITheme interface.
  65   NS_IMETHOD DrawWidgetBackground(nsIRenderingContext* aContext,
  66                                   nsIFrame* aFrame,
  67                                   PRUint8 aWidgetType,
  68                                   const nsRect& aRect,
  69                                   const nsRect& aClipRect);
  70
  71   NS_IMETHOD GetWidgetBorder(nsIDeviceContext* aContext,
  72                              nsIFrame* aFrame,
  73                              PRUint8 aWidgetType,
  74                              nsMargin* aResult);
  75
  76   NS_IMETHOD GetMinimumWidgetSize(nsIRenderingContext* aContext, nsIFrame* aFrame,
  77                                   PRUint8 aWidgetType,
  78                                   nsSize* aResult,
  79                                   PRBool* aIsOverridable);
  80
  81   NS_IMETHOD WidgetStateChanged(nsIFrame* aFrame, PRUint8 aWidgetType,
  82                                 nsIAtom* aAttribute, PRBool* aShouldRepaint);
  83
  84   NS_IMETHOD ThemeChanged();
  85
  86   PRBool ThemeSupportsWidget(nsPresContext* aPresContext,
  87                              nsIFrame* aFrame,
  88                              PRUint8 aWidgetType);
  89
  90   PRBool WidgetIsContainer(PRUint8 aWidgetType);
  91
  92   virtual NS_HIDDEN_(PRBool) GetWidgetPadding(nsIDeviceContext* aContext,
  93                                               nsIFrame* aFrame,
  94                                               PRUint8 aWidgetType,
  95                                               nsMargin* aResult);
  96
  97   NS_IMETHOD_(PRBool) ThemeDrawsFocusForWidget(nsPresContext* aPresContext,
  98                                                nsIFrame* aFrame, PRUint8 aWidgetType);
  99
 100   PRBool ThemeNeedsComboboxDropmarker();
 101
 102   virtual nsTransparencyMode GetWidgetTransparency(PRUint8 aWidgetType);
 103
 104   nsNativeThemeQt();
 105   virtual ~nsNativeThemeQt();
 106
 107 private:
 108
 109   inline PRInt32 GetAppUnitsPerDevPixel(nsIRenderingContext* aContext){
 110     nsCOMPtr<nsIDeviceContext> dctx = nsnull;
 111     aContext->GetDeviceContext(*getter_AddRefs(dctx));
 112     return dctx->AppUnitsPerDevPixel();
 113   }
 114
 115   void InitButtonStyle(PRUint8 widgetType,
 116                        nsIFrame* aFrame,
 117                        QRect rect,
 118                        QStyleOptionButton &opt);
 119
 120   void InitPlainStyle(PRUint8 aWidgetType,
 121                       nsIFrame* aFrame,
 122                       QRect rect,
 123                       QStyleOption &opt,
 124                       QStyle::State extraFlags = QStyle::State_None);
 125
 126   void InitComboStyle(PRUint8 aWidgetType,
 127                       nsIFrame* aFrame,
 128                       QRect rect,
 129                       QStyleOptionComboBox &opt);
 130
 131 private:
 132
 133   PRInt32 mFrameWidth;
 134
 135   QPalette mNoBackgroundPalette;
 136 };
 137