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1 /* |
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2 * Copyright (c) 2008-2009 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: Icon manager for visuals |
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15 * |
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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 /** |
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22 * @internal reviewed 31/07/2007 by Rowland Cook |
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23 */ |
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24 |
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25 |
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26 #ifndef C_GLXVISUALICONMANAGER_H |
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27 #define C_GLXVISUALICONMANAGER_H |
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28 |
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29 #include <e32base.h> |
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30 |
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31 #include "glxiconmanager.h" |
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32 #include <mglxanimationobserver.h> |
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33 #include "mglxvisualobjectstatusobserver.h" |
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34 #include <alf/alftexture.h> |
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35 #include <glxmedia.h> |
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36 |
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37 // FORWARD DECLARES |
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38 struct TIconInfo; |
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39 class CAlfVisual; |
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40 class TGlxMediaId; |
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41 class CAlfTexture; |
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42 class CGlxTextureManager; |
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43 |
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44 /** |
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45 * CGlxVisualIconManager |
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46 * |
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47 * Icon manager for visuals |
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48 * Handles adding default or broken icon if required. |
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49 * If thumbnail not present look for icon attribute |
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50 * @author M Byrne |
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51 * @lib glxvisuallistmanager |
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52 */ |
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53 NONSHARABLE_CLASS( CGlxVisualIconManager ) : public CGlxIconManager, |
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54 public MGlxAnimationObserver, public MGlxVisualObjectStatusObserver |
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55 { |
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56 public: |
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57 /** |
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58 * Static constructor |
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59 * @param aMediaList reference to media list |
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60 * @param aVisualList reference to associated visual list |
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61 * @return pointer to CGlxVisualIconManager instance |
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62 */ |
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63 IMPORT_C static CGlxVisualIconManager* NewL(MGlxMediaList& aMediaList, |
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64 MGlxVisualList& aVisualList); |
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65 |
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66 /** |
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67 * Destructor |
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68 */ |
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69 IMPORT_C ~CGlxVisualIconManager(); |
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70 |
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71 /** |
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72 * Trigger the image-loading animation |
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73 * @param aItemIndex Index of item to animate |
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74 */ |
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75 IMPORT_C void AnimateImageLoadedL(TInt aItemIndex); |
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76 |
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77 public: // from MGlxAnimationObserver |
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78 virtual void AnimationComplete(MGlxAnimation* aAnimation); |
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79 |
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80 private: // From MGlxVisualObjectStatusObserver |
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81 void VisualStatusChangedL( CGlxVisualObject& aObject, |
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82 TInt aListIndex, TBool aHasThumbnail ); |
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83 void ThumbnailLoadedL( CGlxVisualObject& aObject ); |
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84 |
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85 private: |
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86 /** |
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87 * Identifiers for default and broken icons |
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88 */ |
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89 enum TGlxVisualIcon |
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90 { |
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91 EDefaultIcon, |
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92 EBrokenIcon, |
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93 EEmptyIcon, |
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94 EBlackBrush |
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95 }; |
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96 |
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97 private: |
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98 /** |
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99 * Constructor |
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100 * @param aMediaList refernce to media list |
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101 * @param aVisualList reference to associated visual list |
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102 */ |
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103 CGlxVisualIconManager( |
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104 CGlxTextureManager& aTextureManager, |
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105 MGlxMediaList& aMediaList, |
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106 MGlxVisualList& aVisualList ); |
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107 void ConstructL(); |
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108 |
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109 /** |
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110 * Check if thumbnail attribute is present for specifed vis. |
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111 * If not add icon if present or add default icon |
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112 * @param aIndex index of item in media list |
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113 */ |
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114 void CheckThumbnailAttributesL( TInt aIndex ); |
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115 |
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116 /** |
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117 * Trigger the image-loading animation |
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118 * @param aItemVisual Visual of item to animate |
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119 */ |
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120 void AnimateImageLoadedL(CAlfVisual* aItemVisual); |
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121 /** |
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122 * Helper function used be HandleError |
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123 * @param aError the error code to handle. |
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124 */ |
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125 void DoHandleErrorL( TInt aError ); |
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126 |
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127 /** |
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128 * Select the icon to be used for a visual. |
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129 * @param aIndex Index of item in media list |
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130 * @return Pointer to an icon texture. |
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131 */ |
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132 const CAlfTexture* SelectIconTextureL( TInt aIndex ); |
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133 |
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134 /** |
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135 * Helper method to compare two icons |
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136 */ |
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137 static TBool MatchIcon( const TIconInfo& aIcon1, |
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138 const TIconInfo& aIcon2 ); |
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139 |
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140 /** |
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141 * Helper function to determine if an item is a DRM protected video. |
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142 * @param aItem, the item to test |
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143 * @return ETrue if the item is a DRM protected video, EFalse otherwise |
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144 */ |
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145 TBool IsDrmVideoItem( const TGlxMedia& aItem ); |
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146 |
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147 private: |
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148 /** @see MGlxVisualListObserver::HandleVisualAddedL */ |
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149 void HandleVisualAddedL( CAlfVisual* aVisual, TInt aIndex, MGlxVisualList* aList ); |
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150 |
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151 /** @see MGlxMediaListObserver::HandleError */ |
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152 void HandleError( TInt aError ); |
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153 |
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154 private: |
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155 /// @ref texture manager |
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156 CGlxTextureManager& iTextureManager; |
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157 |
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158 // array of thumbnail icons added via icon attribute |
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159 RArray<TIconInfo> iThumbnailIcons; |
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160 |
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161 /// White texture for image-loading "flash" effect |
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162 CAlfTexture* iWhiteTexture; |
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163 |
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164 /// List of current animations, maintained in address order |
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165 RPointerArray<MGlxAnimation> iAnimations; |
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166 |
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167 // texture for default icon overlay not owned |
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168 CAlfTexture* iDefaultIconTexture; |
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169 |
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170 // texture for broken icon overlay not owned |
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171 CAlfTexture* iBrokenIconTexture; |
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172 |
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173 // texture for empty icon overlay not owned |
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174 CAlfTexture* iEmptyIconTexture; |
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175 |
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176 // array of icon textures (textures not owned) |
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177 RPointerArray< CAlfTexture > iIconTextureArray; |
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178 }; |
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179 |
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180 #endif // C_GLXVISUALICONMANAGER_H |