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1 // Copyright (c) 2006-2009 Nokia Corporation and/or its subsidiary(-ies). |
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2 // All rights reserved. |
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3 // This component and the accompanying materials are made available |
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4 // under the terms of "Eclipse Public License v1.0" |
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5 // which accompanies this distribution, and is available |
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6 // at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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7 // |
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8 // Initial Contributors: |
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9 // Nokia Corporation - initial contribution. |
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10 // |
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11 // Contributors: |
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12 // |
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13 // Description: |
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14 // CWsWindowRedraw and associated classes definitions |
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15 // |
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16 // |
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17 |
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18 #ifndef __WNREDRAW_H__ |
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19 #define __WNREDRAW_H__ |
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20 |
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21 #include "server.h" |
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22 #include "panics.h" |
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23 |
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24 class TSurfaceId; |
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25 |
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26 class CPlaybackGc; |
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27 class MWsGraphicsContext; |
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28 class TBackgroundAttributes; |
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29 |
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30 // |
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31 // Base class defining how a window is redrawn, i.e. Backed up, redraw from client, blanked... |
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32 // |
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33 class CWsWindowRedraw : public CBase |
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34 { |
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35 private: |
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36 enum TStateFlags |
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37 { |
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38 EHasElement=0x01, |
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39 EMayContainElement=0x10, |
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40 }; |
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41 public: |
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42 ~CWsWindowRedraw(); |
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43 virtual void ConstructL(); |
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44 virtual TBool CommandL(TInt aOpcode, TWsWinCmdUnion &aCmd)=0; |
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45 virtual TRgb BackColor() const=0; |
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46 virtual TBool NeedsRedraw() const=0; |
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47 virtual TBool GetRedrawRect(TRect &aRect) const=0; |
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48 virtual const TRegion &BaseDrawRegion() const; |
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49 virtual void ClipInvalidRegion(const TRect &aRect); |
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50 virtual const TRegion& InvalidArea() const; |
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51 virtual void Resize(const TSize &aSize, const TSize &aOldSize); |
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52 virtual CWsBackedUpWindow *Backup() const; |
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53 virtual void Scroll(const TRect &aClipRect, const TPoint &aOffset,const TRect &aRect); |
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54 virtual void UpdateAnimArea(); |
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55 virtual void PrepareForResizeL(const TSize &aSize, TSize &aOldSize); |
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56 virtual void Moved() {} |
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57 virtual void ClearRedrawStore(TBool aClearPendingRedraw=EFalse); |
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58 virtual TBool DrawCommand(CWsGc* aGc,const TAny *aCmdData); |
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59 virtual void GcAttributeChange(CWsGc* aGc,const TAny *aCmdData); |
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60 virtual void GcDeactivate(CWsGc* aGc); |
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61 inline CWsWindow *WsWin(); // Link back to main window class |
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62 virtual void ClientExposing(); |
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63 virtual void DrawWindow()=0; |
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64 TInt DrawBackgroundColor(const TRegion& aRegion, TBool aDoFillColor); |
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65 virtual TBool Contains(const TArray<TGraphicDrawerId>& aDrawers,const TRegion& aRegion) const; |
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66 const TRegion * RedrawRegion(); |
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67 virtual TBool ReleaseMemory(MWsMemoryRelease::TMemoryReleaseLevel aLevel); |
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68 virtual CFbsDevice* OutputDevice() const; |
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69 virtual void VisibleRegionChange(); |
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70 virtual TBool ReadyToDraw() const; |
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71 void PreDrawWindow(MWsGraphicsContext * aGc, const TRegion &aWindowRegion); |
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72 void PostDrawWindow(MWsGraphicsContext* aGc, const TRegion& aWindowChildNodeRegion); |
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73 virtual void Invalidate(const TRect *) {} |
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74 virtual TInt SizeInBytes() const { return 0; } |
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75 inline TBool HasElement() const; |
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76 inline TBool MayContainElement() const; |
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77 inline void SetHasElement(TBool); |
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78 inline TBool HasElementExtentDefined() const; |
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79 inline void ClearMayContainElement(); |
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80 virtual TBool RedrawingInProgress() const; |
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81 virtual void WindowClosing(); |
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82 virtual TBool IsRedrawStoreEmpty() const { return EFalse; } |
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83 virtual TBool IsBackgroundClearEnabled() const { return ETrue; } |
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84 virtual CFbsBitmap* BitmapFromHandle(TInt /*aHandle*/) const { return NULL; } |
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85 |
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86 void SetDsaElementL(); |
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87 inline void QueueRedraw(); |
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88 void Fade(MWsGraphicsContext * aGc, const TRegion& aRegion); |
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89 protected: |
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90 CWsWindowRedraw(CWsWindow *aWin); |
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91 void SetReply(TInt aReply); |
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92 void OwnerPanic(TClientPanic aPanic); |
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93 inline CScreen* Screen() const; |
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94 inline CWsClientWindow *CliWin() const; |
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95 void DrawWindowAnimsL(MWsGraphicsContext * aGc, const TRegion& aRegion); |
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96 TBackgroundAttributes& AcquireBackgroundElementL(); |
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97 void SetBackgroundSurfaceL(const TSurfaceId& aSurface); |
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98 void SetBackgroundSurfaceL(const TSurfaceConfiguration& aConfiguration, TBool aTriggerRedraw, TBool aAllowScreenSurface); |
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99 void SetElementExtentL(TRect& aNewExtent, TBackgroundAttributes& aAttributes); |
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100 void ElementRedraw(const TRect& aOldExtent, const TRect& aNewExtent, TBool aAlwaysScheduleUpdate); |
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101 void RemoveBackgroundSurface(TBool aTriggerRedraw); |
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102 void RemoveBackgroundElement(TBool aTriggerRedraw); |
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103 void GetBackgroundSurfaceL(TSurfaceConfiguration& aConfiguration); |
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104 void ReleaseBackgroundElement(); |
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105 void SetMayContainElementFlags(); |
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106 private: |
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107 void DoFade(const TRegion& aRegion); |
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108 void DrawWindowAnims(MWsGraphicsContext * aGc, const TRegion& aRegion); |
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109 void DrawCursorAndSprites(MWsGraphicsContext * aGc, const TRegion& aRegion); |
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110 TBool HasDsaElement() const; |
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111 |
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112 protected: |
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113 CWsWindow *iWsWin; // Link back to main window class |
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114 TUint iStateFlags; // Flags affecting how drawing is done |
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115 const TRegion * iRedrawRegion; // During a scheduled draw, this is the window area scheduled to be drawn. |
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116 }; // In ChangeTracking mode, iRedrawRegion doesn't include the area to be drawn by window-sprites, cursors or window-anims. |
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117 // All of them use the sprite region, declared in CWsWindow::iDirtySpriteRegion. |
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118 |
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119 class CWsBlankWindow : public CWsWindowRedraw |
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120 { |
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121 public: |
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122 CWsBlankWindow(CWsWindow *aWin); |
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123 ~CWsBlankWindow(); |
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124 void ConstructL(); |
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125 |
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126 //from CWsWindowRedraw |
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127 TBool CommandL(TInt aOpcode, TWsWinCmdUnion &aCmd); |
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128 TBool NeedsRedraw() const; |
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129 TBool GetRedrawRect(TRect &aRect) const; |
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130 void DrawWindow(); |
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131 |
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132 void SetColor(TRgb aColor); |
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133 inline void SetBackgroundClear(); |
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134 inline TBool IsBackgroundColor(); |
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135 private: |
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136 TRgb BackColor() const; |
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137 private: |
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138 TRgb iColor; |
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139 TBool iNoColor; |
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140 }; |
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141 |
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142 #include "window.h" |
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143 |
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144 inline CWsWindow *CWsWindowRedraw::WsWin() |
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145 { |
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146 return iWsWin; |
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147 } |
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148 |
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149 inline CScreen* CWsWindowRedraw::Screen() const |
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150 { |
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151 return iWsWin->Screen(); |
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152 } |
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153 |
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154 inline CWsClientWindow *CWsWindowRedraw::CliWin() const |
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155 { |
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156 return (CWsClientWindow *)iWsWin; |
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157 } |
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158 |
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159 inline TBool CWsWindowRedraw::HasElement() const |
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160 { |
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161 return (iStateFlags&EHasElement)>0; |
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162 } |
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163 inline void CWsWindowRedraw::SetHasElement(TBool aSet) |
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164 { |
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165 TInt oldStateFlags = iStateFlags; |
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166 if (aSet) |
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167 { |
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168 iStateFlags|=EHasElement; |
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169 } |
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170 else |
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171 { |
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172 iStateFlags&=~EHasElement; |
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173 } |
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174 if (oldStateFlags!=iStateFlags) |
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175 { |
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176 iWsWin->SetupVisibleRegionTracking(aSet); |
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177 } |
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178 } |
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179 |
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180 inline TBool CWsWindowRedraw::MayContainElement() const |
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181 { |
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182 return (iStateFlags&EMayContainElement)>0; |
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183 } |
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184 |
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185 inline void CWsWindowRedraw::ClearMayContainElement() |
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186 { |
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187 iStateFlags&=~EMayContainElement; |
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188 } |
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189 |
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190 |
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191 inline void CWsBlankWindow::SetBackgroundClear() |
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192 { |
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193 iNoColor=ETrue; |
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194 } |
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195 |
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196 inline TBool CWsBlankWindow::IsBackgroundColor() |
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197 { |
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198 return !iNoColor; |
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199 } |
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200 |
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201 inline void CWsWindowRedraw::QueueRedraw() |
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202 { |
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203 if (iWsWin->IsActive()) |
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204 { |
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205 iWsWin->WsOwner()->RedrawQueue()->AddInvalid(this); |
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206 } |
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207 } |
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208 |
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209 inline const TRegion * CWsWindowRedraw::RedrawRegion() |
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210 { |
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211 return iRedrawRegion; |
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212 } |
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213 |
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214 #endif |