1 /* |
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2 * Copyright (c) 2007 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: Class for displaying the images captured by a Burst session.* |
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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 #ifndef CAMBURSTTHUMBNAILGRID_H |
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20 #define CAMBURSTTHUMBNAILGRID_H |
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21 |
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22 // =========================================================================== |
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23 // INCLUDES |
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24 |
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25 #include <e32base.h> |
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26 #include <e32std.h> |
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27 #include <coecntrl.h> |
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28 #include <eiksbobs.h> // For Scroll component |
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29 #include <eikscrlb.h> // For ScrollModel |
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30 #include <AknUtils.h> // For TAknLayoutRect |
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31 |
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32 #include "CamBurstThumbnailGridModel.h" |
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33 |
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34 |
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35 // =========================================================================== |
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36 // CONSTANTS |
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37 const TInt KGridWidth = 3; // Number of cells left to right |
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38 |
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39 const TInt KGridHeight= 3; // Number of cells top to bottom |
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40 |
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41 const TInt KGridSize = KGridWidth*KGridHeight; |
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42 |
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43 |
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44 const TInt KBurstGridDefaultThumbnails = 6; |
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45 const TInt KBurstGridMaxVisibleThumbnails = 9; |
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46 |
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47 enum BurstGridLayoutTypes |
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48 { |
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49 EDefaultOrLessThumbnails = 0, |
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50 EMaxVisibleThumbnails, |
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51 EScrollbarNeeded |
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52 }; |
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53 |
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54 const TInt KNumberOfBurstGridLayoutTypes = 3; |
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55 |
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56 // MACROS |
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57 |
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58 // =========================================================================== |
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59 // DATA TYPES |
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60 |
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61 // =========================================================================== |
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62 // FUNCTION PROTOTYPES |
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63 |
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64 // =========================================================================== |
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65 // FORWARD DECLARATIONS |
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66 class CFbsBitmap; |
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67 class CCamBurstThumbnailGridModel; |
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68 class CBitmapScaler; |
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69 class CEikScrollBar; |
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70 |
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71 |
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72 // =========================================================================== |
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73 // CLASS DECLARATION |
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74 |
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75 /** |
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76 * Utility class used to group together related layout information into one |
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77 * object, and construct itself using a supplied resource reader. |
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78 * |
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79 * @since 2.8 |
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80 */ |
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81 class TCamBurstGridCellLayout |
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82 { |
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83 public: |
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84 /** |
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85 * Constructs the layout information for the object |
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86 * @since 2.8 |
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87 * @param aReader The resource reader to use for construction |
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88 * @param aRect The parent rect for the layout entries |
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89 */ |
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90 void ConstructFromResource( TResourceReader& aReader, TRect& aRect ); |
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91 |
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92 public: |
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93 TAknLayoutRect iCellRect; // Rectangle of the cell |
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94 TAknLayoutRect iHighRect; // Rectangle of the Highlight |
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95 TAknLayoutRect iMarkRect; // Rectangle of the "mark" |
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96 TAknLayoutRect iThmbRect; // Rectangle of the thumbnail |
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97 }; |
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98 |
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99 |
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100 /** |
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101 * Handles the drawing of the Burst Post-Capture control |
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102 * |
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103 * @since 2.8 |
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104 */ |
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105 class CCamBurstThumbnailGrid : public CCoeControl, |
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106 public MThumbModelObserver, |
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107 public MEikScrollBarObserver |
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108 { |
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109 public: // Constructors and destructor |
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110 |
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111 /** |
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112 * Two-phased constructor. |
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113 */ |
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114 static CCamBurstThumbnailGrid* NewL( const CCoeControl* aParent, CCamBurstThumbnailGridModel& aModel ); |
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115 |
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116 /** |
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117 * Destructor. |
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118 */ |
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119 virtual ~CCamBurstThumbnailGrid(); |
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120 |
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121 public: // New functions |
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122 |
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123 /** |
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124 * Constructs the layout information for the grid |
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125 * @since 2.8 |
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126 */ |
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127 void ReadLayout(); |
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128 |
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129 /** |
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130 * Returns the ID of the resource to use for the grid structure |
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131 * @since 2.8 |
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132 * @returns The resource ID to use |
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133 */ |
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134 TInt ResourceId(); |
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135 |
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136 /** |
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137 * Tests if the given coordinates match to any item on burst grid |
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138 * @param aPosition Coordinates to be tested |
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139 * @return TInt Grid item index that macthes the coordinates. Negative value returned |
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140 * if position does not match any grid item |
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141 */ |
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142 TInt HitTestGridItems( TPoint aPosition ); |
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143 |
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144 public: // Functions from base classes |
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145 |
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146 /** |
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147 * From CCoeControl |
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148 * @since 2.8 |
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149 * @param aRect Area to be redrawn |
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150 */ |
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151 void Draw( const TRect& aRect ) const; |
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152 |
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153 /** |
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154 * From CCoeControl |
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155 * @since 2.8 |
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156 * @return The number of controls owned by this control |
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157 */ |
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158 TInt CountComponentControls() const; |
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159 |
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160 /** |
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161 * From CCoeControl |
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162 * @since 2.8 |
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163 * @param aIndex The index of the required control |
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164 * @return Returns the requested control |
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165 */ |
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166 CCoeControl* ComponentControl( TInt aIndex ) const; |
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167 |
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168 /** |
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169 * From CCoeControl |
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170 * @since 2.8 |
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171 */ |
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172 void SizeChanged(); |
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173 |
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174 /** |
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175 * From CCoeControl |
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176 * @since 2.8 |
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177 * @param aKeyEvent Details of the key event |
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178 * @param aType The keypress type |
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179 * @return TKeyResponse whether the key event was handled or ignored |
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180 */ |
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181 TKeyResponse OfferKeyEventL( const TKeyEvent& aKeyEvent, TEventCode aType ) ; |
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182 |
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183 /** |
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184 * From MThumbModelObserver. |
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185 * Called when the highlight has changed |
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186 * @since 2.8 |
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187 */ |
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188 void HighlightChanged(); |
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189 |
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190 /** |
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191 * From MThumbModelObserver |
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192 * Called when an image has been deleted. |
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193 * @since 2.8 |
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194 */ |
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195 void ImagesDeleted(); |
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196 |
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197 /** |
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198 * From MThumbModelObserver |
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199 * Called when a new thumbnail has been generated |
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200 * @since 2.8 |
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201 */ |
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202 void ThumbnailGenerated(); |
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203 |
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204 /** |
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205 * From MEikScrollBarObserver |
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206 * Called when a new thumbnail has been generated |
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207 * @since 2.8 |
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208 * @param aScrollBar |
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209 * @param aEventType |
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210 */ |
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211 void HandleScrollEventL( CEikScrollBar* aScrollBar, TEikScrollEvent aEventType ); |
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212 |
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213 /** |
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214 * Creates the scrollbar control. SetMopParent must be called before this. |
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215 * @since 3.0 |
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216 */ |
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217 void CreateScrollBarL(); |
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218 |
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219 /** |
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220 * Creates the scrollbar control. |
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221 * @since 3.0 |
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222 */ |
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223 void DeleteScrollBar(); |
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224 |
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225 /** |
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226 * Sets up the scroll bar, used on start up and when items are deleted |
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227 * to update the state |
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228 * @since 3.0 |
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229 */ |
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230 void SetupScrollbarL(); |
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231 |
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232 /** |
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233 * Returns the height of the grid control. |
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234 * @since 3.0 |
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235 * @return Height of the grid control in cells |
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236 */ |
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237 TInt GridSize() const; |
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238 |
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239 protected: // New functions |
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240 |
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241 /** |
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242 * Updates layouts. Used to reload layouts when images are deleted. |
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243 */ |
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244 void UpdateLayout(); |
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245 |
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246 protected: // Functions from base classes |
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247 |
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248 private: |
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249 |
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250 /** |
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251 * C++ default constructor. |
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252 */ |
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253 CCamBurstThumbnailGrid( CCamBurstThumbnailGridModel& aModel ); |
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254 |
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255 /** |
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256 * By default Symbian 2nd phase constructor is private. |
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257 */ |
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258 void ConstructL( const CCoeControl* aParent ); |
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259 |
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260 |
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261 |
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262 public: // Data |
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263 |
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264 protected: // Data |
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265 |
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266 private: // Data |
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267 // Passed in by (and owned by) View |
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268 CCamBurstThumbnailGridModel& iModel; |
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269 |
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270 // Array of layout objects read from the resource file. |
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271 // Each object represents a "cell" on the grid |
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272 TCamBurstGridCellLayout iGridCellLayout[KGridSize]; |
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273 |
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274 // Bitmap and mask for the "mark" check box for an image |
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275 CFbsBitmap* iBitmapMark; |
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276 CFbsBitmap* iBitmapMarkMask; |
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277 |
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278 CEikScrollBarFrame* iScrollFrame; |
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279 TAknDoubleSpanScrollBarModel ivModel; // model for double span (side) scrollbar |
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280 TAknLayoutRect iScrollLayout; |
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281 |
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282 // As the grid size is potentially variable depending on whether |
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283 // limited or unlimited capture is used, need to keep track of the |
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284 // grid size used. |
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285 TInt iGridSize; |
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286 |
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287 }; |
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288 |
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289 |
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290 |
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291 #endif // CAMBURSTTHUMBNAILGRID_H |
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292 |
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293 // =========================================================================== |
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294 // End of File |
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295 |
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296 |
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