widget/gtk/nsNativeThemeGTK.h

   1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
   2 /* This Source Code Form is subject to the terms of the Mozilla Public
   3  * License, v. 2.0. If a copy of the MPL was not distributed with this
   4  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
   5
   6 #include "nsITheme.h"
   7 #include "nsCOMPtr.h"
   8 #include "nsIAtom.h"
   9 #include "nsIObserver.h"
  10 #include "nsNativeTheme.h"
  11
  12 #include <gtk/gtk.h>
  13 #include "gtkdrawing.h"
  14
  15 class nsNativeThemeGTK: private nsNativeTheme,
  16                         public nsITheme,
  17                         public nsIObserver {
  18 public:
  19   NS_DECL_ISUPPORTS_INHERITED
  20
  21   NS_DECL_NSIOBSERVER
  22
  23   // The nsITheme interface.
  24   NS_IMETHOD DrawWidgetBackground(nsRenderingContext* aContext,
  25                                   nsIFrame* aFrame, uint8_t aWidgetType,
  26                                   const nsRect& aRect,
  27                                   const nsRect& aDirtyRect);
  28
  29   NS_IMETHOD GetWidgetBorder(nsDeviceContext* aContext, nsIFrame* aFrame,
  30                              uint8_t aWidgetType, nsIntMargin* aResult);
  31
  32   virtual NS_HIDDEN_(bool) GetWidgetPadding(nsDeviceContext* aContext,
  33                                               nsIFrame* aFrame,
  34                                               uint8_t aWidgetType,
  35                                               nsIntMargin* aResult);
  36
  37   virtual NS_HIDDEN_(bool) GetWidgetOverflow(nsDeviceContext* aContext,
  38                                                nsIFrame* aFrame,
  39                                                uint8_t aWidgetType,
  40                                                nsRect* aOverflowRect);
  41
  42   NS_IMETHOD GetMinimumWidgetSize(nsRenderingContext* aContext,
  43                                   nsIFrame* aFrame, uint8_t aWidgetType,
  44                                   nsIntSize* aResult, bool* aIsOverridable);
  45
  46   NS_IMETHOD WidgetStateChanged(nsIFrame* aFrame, uint8_t aWidgetType,
  47                                 nsIAtom* aAttribute, bool* aShouldRepaint);
  48
  49   NS_IMETHOD ThemeChanged();
  50
  51   NS_IMETHOD_(bool) ThemeSupportsWidget(nsPresContext* aPresContext,
  52                                           nsIFrame* aFrame,
  53                                           uint8_t aWidgetType);
  54
  55   NS_IMETHOD_(bool) WidgetIsContainer(uint8_t aWidgetType);
  56
  57   NS_IMETHOD_(bool) ThemeDrawsFocusForWidget(uint8_t aWidgetType) MOZ_OVERRIDE;
  58
  59   bool ThemeNeedsComboboxDropmarker();
  60
  61   virtual Transparency GetWidgetTransparency(nsIFrame* aFrame,
  62                                              uint8_t aWidgetType);
  63
  64   nsNativeThemeGTK();
  65   virtual ~nsNativeThemeGTK();
  66
  67 private:
  68   gint GetTabMarginPixels(nsIFrame* aFrame);
  69   bool GetGtkWidgetAndState(uint8_t aWidgetType, nsIFrame* aFrame,
  70                               GtkThemeWidgetType& aGtkWidgetType,
  71                               GtkWidgetState* aState, gint* aWidgetFlags);
  72   bool GetExtraSizeForWidget(nsIFrame* aFrame, uint8_t aWidgetType,
  73                                nsIntMargin* aExtra);
  74
  75   void RefreshWidgetWindow(nsIFrame* aFrame);
  76
  77   uint8_t mDisabledWidgetTypes[32];
  78   uint8_t mSafeWidgetStates[1024];    // 256 widgets * 32 bits per widget
  79   static const char* sDisabledEngines[];
  80 };