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1 /* |
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2 * Copyright (c) 2004,2005 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: This file implements the SVGT Thumbnail functionality |
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15 * to display SVGT content |
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16 * |
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17 */ |
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18 |
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19 |
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20 |
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21 // INCLUDE FILES |
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22 #include <AknIconUtils.h> |
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23 #include <e32def.h> |
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24 #include <e32base.h> |
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25 #include <eikenv.h> |
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26 #include <fbs.h> |
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27 #include <gdi.h> |
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28 #include <bautils.h> |
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29 #include <SVGEngineInterfaceImpl.h> |
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30 #include <data_caging_path_literals.hrh> |
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31 |
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32 // User Includes |
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33 #include "SVGTUIControlDbgFlags.hrh" |
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34 #include "SVGTThumbnailUtil.h" |
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35 |
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36 // Constants |
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37 // General Constants |
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38 const TInt KSccConstMinusOne = -1; |
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39 const TInt KSccConstZero = 0; |
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40 const TUint KSccBackground = 0xffffffff; |
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41 |
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42 |
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43 // SMIL Fit Value |
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44 _LIT( KSccSmilFitValue,"meet" ); |
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45 |
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46 // ============================ MEMBER FUNCTIONS =============================== |
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47 // ----------------------------------------------------------------------------- |
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48 // CSVGTThumbnailUtil::GenerateThumbnailLD |
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49 // Generate thumbnails for SVGT content. |
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50 // ----------------------------------------------------------------------------- |
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51 // |
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52 EXPORT_C TBool CSVGTThumbnailUtil::GenerateThumbnailLD( |
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53 RFile& aFileHandle, // Filehandle of SVGT |
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54 CFbsBitmap& aThumbnailBitmap, // Thumbnail Bitmap |
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55 CFbsBitmap& aThumbnailBitmapMask ) // BitMap mask |
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56 { |
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57 CSVGTThumbnailUtil *tnUtilPtr = CSVGTThumbnailUtil::NewLC( aFileHandle, |
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58 aThumbnailBitmap, |
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59 aThumbnailBitmapMask ); |
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60 TBool retVal = tnUtilPtr->GenerateThumbnail(); |
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61 CleanupStack::PopAndDestroy( tnUtilPtr ); |
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62 return retVal; |
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63 } |
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64 |
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65 |
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66 |
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67 // ----------------------------------------------------------------------------- |
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68 // CSVGTThumbnailUtil::UpdateScreen |
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69 // Implements MSvgRequestObserver::UpdateScreen. |
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70 // ----------------------------------------------------------------------------- |
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71 // |
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72 void CSVGTThumbnailUtil::UpdateScreen() |
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73 { |
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74 } |
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75 |
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76 // ----------------------------------------------------------------------------- |
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77 // CSVGTThumbnailUtil::ScriptCall |
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78 // Implements MSvgRequestObserver::ScriptCall. |
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79 // ----------------------------------------------------------------------------- |
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80 // |
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81 TBool CSVGTThumbnailUtil::ScriptCall( const TDesC& /*aScript*/, |
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82 CSvgElementImpl* /*aCallerElement*/ ) |
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83 { |
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84 return EFalse; |
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85 } |
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86 |
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87 |
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88 // ----------------------------------------------------------------------------- |
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89 // CSVGTThumbnailUtil::FetchImage |
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90 // Implements MSvgRequestObserver::FetchImage. Calls the application call |
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91 // back corresponding to this function if exists, else returns EFalse |
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92 // indicating to the engine that the image was not retrieved. |
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93 // ----------------------------------------------------------------------------- |
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94 // |
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95 TInt CSVGTThumbnailUtil::FetchImage( const TDesC& /*aUri*/, |
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96 RFs& /*aSession*/, RFile& /*aFileHandle*/ ) |
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97 { |
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98 return KErrNotFound; |
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99 } |
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100 |
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101 TInt CSVGTThumbnailUtil::FetchFont( const TDesC& /* aUri */, |
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102 RFs& /* aSession */, RFile& /* aFileHandle */ ) |
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103 { |
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104 return KErrNotSupported; |
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105 } |
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106 |
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107 // ----------------------------------------------------------------------------- |
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108 // CSVGTThumbnailUtil:: GetSmilFitValue |
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109 // Implements the MSvgRequestObserver::GetSmilFitValue. |
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110 // ----------------------------------------------------------------------------- |
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111 // |
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112 void CSVGTThumbnailUtil::GetSmilFitValue( TDes& aSmilValue ) |
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113 { |
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114 aSmilValue.Copy( KSccSmilFitValue ); |
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115 } |
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116 |
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117 // ----------------------------------------------------------------------------- |
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118 // CSVGTThumbnailUtil::UpdatePresentation |
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119 // Implements MSvgRequestObserver::UpdatePresentation. |
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120 // ----------------------------------------------------------------------------- |
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121 // |
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122 void CSVGTThumbnailUtil::UpdatePresentation( const TInt32& |
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123 /* aNoOfAnimation */ ) |
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124 { |
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125 } |
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126 |
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127 // ----------------------------------------------------------------------------- |
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128 // CSVGTThumbnailUtil::InitializeEngineL |
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129 // Initiliazes the interface with the SVG engine. |
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130 // ----------------------------------------------------------------------------- |
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131 // |
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132 void CSVGTThumbnailUtil::InitializeEngineL() |
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133 { |
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134 if ( !iSvgModule ) |
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135 { |
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136 TFontSpec spec; |
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137 |
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138 if ( !iSVGTBitMapDummy ) |
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139 { |
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140 // For thumbnails, the user provided bitmap is used, |
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141 // Have to give some dummy bitmap to the engine in the constructor. |
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142 iSVGTBitMapDummy = new( ELeave ) CFbsBitmap; |
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143 User::LeaveIfError( iSVGTBitMapDummy->Create( |
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144 TSize( KSccConstZero, KSccConstZero ), EGray2 ) ); |
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145 } |
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146 |
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147 iSvgModule = CSvgEngineInterfaceImpl::NewL( iSVGTBitMapDummy, |
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148 this, spec ); |
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149 iSvgModule->SetBackgroundColor( KSccBackground ); |
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150 } |
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151 } |
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152 |
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153 // ----------------------------------------------------------------------------- |
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154 // CSVGTThumbnailUtil::GenerateThumbnail |
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155 // Helper function that generates Thumbnail for the SVG content. |
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156 // ----------------------------------------------------------------------------- |
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157 // |
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158 TBool CSVGTThumbnailUtil::GenerateThumbnail() |
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159 { |
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160 if ( iSvgModule ) |
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161 { |
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162 MSvgError* result; |
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163 result = iSvgModule->PrepareDom( iContentFileHandle, iThumbnailHandle ); |
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164 |
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165 // NULL is returned, possible out of memory when create error object. |
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166 if ( ( !result ) || ( result->HasError() ) ) |
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167 { |
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168 return EFalse; |
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169 } |
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170 #ifdef SVGTUICONTROL_DBG_DRM_THUMBNAIL_API_ENABLE |
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171 // Set thumbnail mode On |
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172 iSvgModule->SetThumbNailMode( ETrue ); |
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173 #endif // SVGTUICONTROL_DBG_DRM_THUMBNAIL_API_ENABLE |
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174 |
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175 // Setup the engine to use the DOM |
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176 result = iSvgModule->UseDom( iThumbnailHandle, iThumbnailBitmap ); |
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177 if ( result->HasError() && !result->IsWarning() ) |
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178 { |
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179 return EFalse; |
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180 } |
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181 |
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182 // View Box define for Dom associated frame |
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183 iSvgModule->ChooseViewBoxIfNotSet(iThumbnailHandle); |
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184 iSvgModule->InitializeEngine(); |
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185 iSvgModule->RenderFrame( NULL, 0); |
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186 |
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187 // Render the Mask Bitmap |
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188 iSvgModule->GenerateMask( iThumbnailBitmapMask ); |
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189 #ifdef SVGTUICONTROL_DBG_DRM_THUMBNAIL_API_ENABLE |
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190 // Set thumbnail mode Off |
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191 iSvgModule->SetThumbNailMode( EFalse ); |
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192 #endif // SVGTUICONTROL_DBG_DRM_THUMBNAIL_API_ENABLE |
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193 |
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194 return ETrue; |
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195 } |
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196 else |
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197 { |
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198 return EFalse; |
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199 } |
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200 |
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201 } |
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202 |
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203 // ----------------------------------------------------------------------------- |
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204 // CSVGTThumbnailUtil::CSVGTThumbnailUtil |
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205 // C++ default constructor. |
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206 // ----------------------------------------------------------------------------- |
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207 // |
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208 CSVGTThumbnailUtil::CSVGTThumbnailUtil( RFile& aFileHandle ) : |
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209 // Thumbnail Variables |
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210 iThumbnailHandle( KSccConstMinusOne ), |
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211 iContentFileHandle( aFileHandle ) |
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212 { |
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213 } |
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214 |
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215 // ----------------------------------------------------------------------------- |
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216 // CSVGTThumbnailUtil::ConstructL |
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217 // Symbian 2nd phase constructor. |
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218 // ----------------------------------------------------------------------------- |
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219 // |
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220 void CSVGTThumbnailUtil::ConstructL( |
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221 CFbsBitmap& aThumbnailBitmap, // Bitmap on which content is to be |
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222 // rendered |
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223 CFbsBitmap& aThumbnailBitmapMask )// Bitmap Mask |
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224 { |
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225 // Save the user parameters for later access. |
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226 iSvgModule = NULL; |
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227 iSVGTBitMapDummy = NULL; |
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228 iThumbnailBitmap = &aThumbnailBitmap; |
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229 iThumbnailBitmapMask = &aThumbnailBitmapMask; |
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230 InitializeEngineL(); |
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231 } |
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232 |
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233 // ----------------------------------------------------------------------------- |
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234 // CSVGTThumbnailUtil::NewL |
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235 // Factory function for creating CSVGTThumbnailUtil objects for thumbnail |
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236 // generation. |
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237 // Returns: CSVGTThumbnailUtil* ; Pointer to the created object. |
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238 // Leaves if error occurs during creation. |
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239 // ----------------------------------------------------------------------------- |
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240 // |
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241 CSVGTThumbnailUtil* CSVGTThumbnailUtil::NewL( |
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242 RFile& aFileHandle, // File handle of SVGT Content |
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243 CFbsBitmap& aThumbnailBitmap, // Bitmap on which content is to be |
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244 // rendered |
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245 CFbsBitmap& aThumbnailBitmapMask )// Bitmap Mask |
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246 { |
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247 CSVGTThumbnailUtil* self = CSVGTThumbnailUtil::NewLC( aFileHandle, |
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248 aThumbnailBitmap, |
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249 aThumbnailBitmapMask ); |
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250 CleanupStack::Pop( self ); |
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251 return self; |
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252 } |
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253 |
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254 // ----------------------------------------------------------------------------- |
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255 // CSVGTThumbnailUtil::NewLC |
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256 // Factory function for creating CSVGTThumbnailUtil objects for thumbnail |
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257 // generation. |
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258 // Returns: CSVGTThumbnailUtil* ; Pointer to the created object. |
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259 // Leaves if error occurs during creation. |
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260 // ----------------------------------------------------------------------------- |
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261 // |
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262 CSVGTThumbnailUtil* CSVGTThumbnailUtil::NewLC( |
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263 RFile& aFileHandle, // File Handle of SVGT Content |
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264 CFbsBitmap& aThumbnailBitmap, // Bitmap on which content is to be |
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265 // rendered |
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266 CFbsBitmap& aThumbnailBitmapMask) // Bitmap Mask |
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267 { |
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268 CSVGTThumbnailUtil* self = new ( ELeave ) CSVGTThumbnailUtil( |
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269 aFileHandle ); |
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270 CleanupStack::PushL( self ); |
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271 self->ConstructL( aThumbnailBitmap, aThumbnailBitmapMask ); |
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272 return self; |
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273 } |
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274 |
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275 |
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276 // ----------------------------------------------------------------------------- |
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277 // CSVGTThumbnailUtil::~CSVGTThumbnailUtil |
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278 // Destructor |
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279 // ----------------------------------------------------------------------------- |
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280 // |
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281 CSVGTThumbnailUtil::~CSVGTThumbnailUtil() |
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282 { |
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283 if ( iThumbnailHandle != KSccConstMinusOne ) |
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284 { |
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285 if ( iSvgModule ) |
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286 { |
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287 iSvgModule->DeleteDom( iThumbnailHandle ); |
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288 } |
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289 } |
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290 |
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291 // Dummy bitmap |
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292 delete iSVGTBitMapDummy; |
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293 |
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294 // SVG Engine |
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295 delete iSvgModule; |
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296 |
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297 // Reset the Thumbnail and Mask as this is owned by the caller |
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298 iThumbnailBitmap = NULL; |
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299 iThumbnailBitmapMask = NULL; |
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300 } |
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301 |
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302 |
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303 // End of File |