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1 /* |
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2 * Copyright (c) 2005 Nokia Corporation and/or its subsidiary(-ies). |
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3 * All rights reserved. |
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4 * This component and the accompanying materials are made available |
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5 * under the terms of "Eclipse Public License v1.0" |
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6 * which accompanies this distribution, and is available |
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7 * at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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8 * |
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9 * Initial Contributors: |
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10 * Nokia Corporation - initial contribution. |
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11 * |
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12 * Contributors: |
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13 * |
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14 * Description: |
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15 * |
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16 */ |
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17 |
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18 #ifndef CMIDGRAPHICS_H |
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19 #define CMIDGRAPHICS_H |
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20 |
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21 #include <lcdgr.h> |
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22 |
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23 class CFbsBitmap; |
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24 class CMIDSprite; |
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25 class CMIDTiledLayer; |
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26 class CMIDProxyMap; |
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27 class CLcdGraphics; |
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28 |
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29 /** |
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30 * Proxy to native peer to javax.microedition.lcdui.Graphics. |
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31 * |
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32 * Presents MMIDGraphics interface for compatability. |
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33 */ |
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34 NONSHARABLE_CLASS(CMIDGraphics) : public CBase |
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35 , public MMIDGraphics |
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36 , public MMIDBufferProcessor |
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37 { |
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38 public: |
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39 #ifdef RD_JAVA_NGA_ENABLED |
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40 /** |
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41 * Constructor |
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42 * @param aProxyMap |
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43 * - a proxy |
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44 * @param aGraphics |
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45 * - a graphics implementation |
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46 * @param aIsImageTarget |
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47 * - true if an image is the target |
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48 */ |
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49 CMIDGraphics( |
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50 CMIDProxyMap& aProxyMap, CLcdGraphics* aGraphics, |
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51 TBool aIsImageTarget, MMIDCanvas* aTarget = NULL); |
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52 |
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53 #else RD_JAVA_NGA_ENABLED |
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54 |
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55 /** |
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56 * Constructor |
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57 * @param aProxyMap a proxy |
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58 * @param aGraphics a graphics implementation |
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59 * @param aIsImageTarget true if an image is the target |
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60 */ |
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61 CMIDGraphics( |
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62 CMIDProxyMap& aProxyMap, CLcdGraphics* aGraphics, |
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63 TBool aIsImageTarget); |
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64 #endif // RD_JAVA_NGA_ENABLED |
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65 |
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66 /** |
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67 * Dtor |
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68 */ |
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69 ~CMIDGraphics(); |
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70 |
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71 /** |
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72 * From MMIDComponent |
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73 */ |
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74 virtual TType Type() const; |
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75 virtual void Dispose(); |
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76 virtual MMIDBufferProcessor* Processor(); |
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77 |
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78 /** |
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79 * From MMIDBufferProcessor |
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80 */ |
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81 #ifdef RD_JAVA_NGA_ENABLED |
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82 virtual TBool ProcessL( |
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83 const TMIDBufferOp*& aRead, const TMIDBufferOp* aEnd, |
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84 TInt& aCycles, java::util::Monitor* aMonitor); |
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85 #else |
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86 virtual TBool ProcessL( |
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87 const TMIDBufferOp*& aRead, const TMIDBufferOp* aEnd, |
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88 TInt& aCycles, TRequestStatus* aStatus = NULL); |
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89 #endif |
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90 virtual void AbortAsync(); |
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91 |
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92 |
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93 /** |
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94 *@return aColor quantized to device palette. |
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95 */ |
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96 virtual TUint32 DisplayColor(TUint32 aColor); |
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97 |
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98 /** |
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99 * From MMIDGraphics |
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100 */ |
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101 virtual TInt DrawPixels( |
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102 TInt aType, // pixel data type |
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103 TUint8* aAddress, // pixel data array |
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104 TInt aLength, // pixel array length (bytes) |
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105 TInt aScanLength, // (bytes) always positive - vertical reflection handled by point/size |
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106 TBool aAlpha, // true if pixel data contains alpha |
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107 const TRect& aRect, // destination rect |
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108 TInt aTransform // transform to apply |
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109 ); |
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110 |
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111 /** |
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112 *@return bitmap handle if rendering to bitmap |
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113 */ |
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114 virtual CFbsBitmap* Bitmap() const; |
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115 |
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116 /** |
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117 *@return alpha bitmap handle or NULL if there is none |
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118 */ |
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119 inline CFbsBitmap* BitmapAlpha() const; |
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120 |
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121 /** |
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122 *@return window handle if rendering to window. |
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123 */ |
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124 virtual RWindow* Window() const; |
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125 |
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126 /** |
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127 *@return drawing surface viewport |
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128 */ |
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129 virtual TRect ViewPort() const; |
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130 |
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131 /** |
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132 *@return ETrue for mutable off-screen images (not for canvas/GameCanvas framebuffer) |
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133 * or EFalse for canvas/GameCanvas framebuffer |
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134 */ |
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135 TBool IsImageTarget() const; |
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136 |
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137 #ifdef RD_JAVA_NGA_ENABLED |
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138 |
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139 public: // from MMIDComponentNgaExtension |
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140 /** |
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141 * @see MMIDComponentNgaExtension#UpdateEglContent() |
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142 * @since S60 9.2 |
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143 */ |
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144 virtual void UpdateEglContent(); |
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145 |
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146 /** |
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147 * @see MMIDComponentNgaExtension#IsEglAvailable() |
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148 * @since S60 9.2 |
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149 */ |
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150 virtual TBool IsEglAvailable(); |
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151 |
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152 /** |
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153 * @see MMIDComponentNgaExtension#BindEglSurface() |
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154 * @since S60 9.2 |
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155 */ |
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156 virtual EGLSurface BindEglSurface(); |
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157 |
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158 /** |
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159 * @see MMIDComponentNgaExtension#ReleaseEglSurface() |
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160 * @since S60 9.2 |
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161 */ |
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162 virtual void ReleaseEglSurface(); |
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163 |
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164 /** |
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165 * @see MMIDComponentNgaExtension#UpdateOffScreenBitmapL() |
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166 * @since S60 9.2 |
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167 */ |
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168 virtual void UpdateOffScreenBitmapL(TBool aForced); |
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169 |
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170 /** |
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171 * @see MMIDComponentNgaExtension#FillEglSurface() |
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172 * @since S60 9.2 |
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173 */ |
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174 virtual TBool FillEglSurface(const TRect& aRect, const TRgb& aColor); |
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175 |
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176 /** |
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177 * @see MMIDGraphics#TargetSize() |
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178 * @since S60 9.2 |
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179 */ |
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180 virtual TSize CanvasTargetSize() const; |
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181 |
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182 /** |
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183 * @see MMIDGraphics#GetTargetCanvas() |
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184 * @since S60 9.2 |
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185 */ |
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186 virtual MMIDCanvas* GetTargetCanvas() const; |
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187 |
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188 private: |
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189 /** |
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190 * Merges aRect to member variable TRects that are used for |
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191 * tracking the area that is updated with 2D content. |
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192 * @param aRect TRect that contains new area that has been updated |
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193 * with 2D content. |
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194 */ |
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195 void UpdateRect(const TRect& aRect); |
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196 |
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197 /** |
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198 * Calculate bounding box for text. |
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199 * @param aTextPtr a text to be drawn |
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200 * @param aP a start point |
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201 * @param aAnchor an anchor that effects to text's start point. |
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202 */ |
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203 void UpdateTextRect(TPtrC& aTextPtr, const TPoint& aP, TInt aAnchor); |
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204 |
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205 /** |
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206 * Finds the minimum of three integers |
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207 * @param aX - |
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208 * @param aY - |
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209 * @param aZ - |
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210 * @return the min of the three attributes |
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211 */ |
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212 inline TInt Min3(TInt aX, TInt aY, TInt aZ); |
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213 |
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214 /** |
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215 * Finds the maximum of three integers |
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216 * @param aX - |
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217 * @param aY - |
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218 * @param aZ - |
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219 * @return the max of the three attributes |
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220 */ |
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221 inline TInt Max3(TInt aX, TInt aY, TInt aZ); |
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222 |
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223 private: |
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224 /** |
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225 * Target Canvas of this graphics object. |
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226 * NULL, when this is not canvas graphics. |
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227 */ |
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228 MMIDCanvas* iCanvasTarget; |
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229 #endif // RD_JAVA_NGA_ENABLED |
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230 |
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231 private: |
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232 CMIDProxyMap& iProxyMap; |
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233 CLcdGraphics* iGraphics; |
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234 // this flag is for mutable off-screen images (not for canvas/GameCanvas framebuffer) |
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235 TBool iIsImageTarget; |
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236 }; |
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237 |
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238 inline CFbsBitmap* CMIDGraphics::BitmapAlpha() const |
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239 { |
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240 return NULL; |
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241 } |
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242 |
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243 #ifdef RD_JAVA_NGA_ENABLED |
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244 // --------------------------------------------------------------------------- |
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245 // CMIDGraphics::Min3 |
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246 // --------------------------------------------------------------------------- |
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247 // |
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248 inline TInt CMIDGraphics::Min3(TInt aX, TInt aY, TInt aZ) |
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249 { |
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250 return Min(Min(aX, aY), aZ); |
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251 } |
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252 |
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253 // --------------------------------------------------------------------------- |
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254 // CMIDGraphics::Max3 |
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255 // --------------------------------------------------------------------------- |
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256 // |
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257 inline TInt CMIDGraphics::Max3(TInt aX, TInt aY, TInt aZ) |
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258 { |
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259 return Max(Max(aX, aY), aZ); |
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260 } |
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261 #endif // RD_JAVA_NGA_ENABLED |
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262 |
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263 #endif // CMIDGRAPHICS_H |
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264 |