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1 /* |
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2 * Copyright (c) 2002-2004 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: Edit mode for widget drag and drop. |
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15 * |
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16 */ |
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17 |
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18 #ifndef XNEDITMODE_H |
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19 #define XNEDITMODE_H |
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20 |
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21 // System includes |
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22 #include <coecntrl.h> |
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23 |
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24 // Forward declarations |
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25 class CXnUiEngine; |
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26 class CXnViewManager; |
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27 class CXnNode; |
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28 class CFbsBitGc; |
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29 class CFbsBitmap; |
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30 class CFbsBitmapDevice; |
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31 class CWindowToBitmapMappingGc; |
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32 |
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33 // Class declaration |
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34 |
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35 /** |
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36 * Edit mode. Enables widget drag and drop. |
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37 * |
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38 * @ingroup group_xnlayoutengine |
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39 * @lib xnlayoutengine.lib |
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40 * @since Series 60 5.1 |
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41 */ |
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42 NONSHARABLE_CLASS( CXnEditMode ) : public CCoeControl |
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43 { |
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44 public: |
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45 // Data types |
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46 enum TEditState |
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47 { |
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48 ENone = 0x00, |
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49 EWaitDrag = 0x01, |
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50 EShootContent = 0x02, |
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51 EDragging = 0x04, |
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52 EDragAndDrop = 0x08, |
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53 EKeyMove = 0x10 |
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54 }; |
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55 |
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56 public: |
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57 /** |
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58 * Two-phased constructor. |
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59 */ |
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60 static CXnEditMode* NewL( CXnUiEngine& aUiEngine ); |
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61 |
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62 /** |
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63 * Destructor. |
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64 */ |
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65 ~CXnEditMode(); |
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66 |
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67 private: |
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68 // from CCoeControl |
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69 |
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70 /** |
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71 * @see CCoeControl |
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72 */ |
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73 void Draw( const TRect& aRect ) const; |
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74 |
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75 /** |
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76 * @see CCoeControl |
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77 */ |
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78 void MakeVisible( TBool aVisible ); |
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79 |
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80 /** |
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81 * @see CCoeControl |
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82 */ |
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83 void HandlePointerEventL( const TPointerEvent& aPointerEvent ); |
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84 |
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85 /** |
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86 * @see CCoeControl |
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87 */ |
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88 TKeyResponse OfferKeyEventL( const TKeyEvent& aKeyEvent, |
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89 TEventCode aType ); |
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90 |
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91 /** |
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92 * @see CCoeControl |
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93 */ |
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94 void SizeChanged(); |
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95 |
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96 public: |
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97 // New functions |
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98 |
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99 /** |
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100 * Changes the state of edit mode. |
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101 * |
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102 * @since Series 60 5.0 |
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103 * @param aSet The state of edit mode. |
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104 */ |
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105 void SetEditModeL( CXnEditMode::TEditState aSet ); |
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106 |
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107 /** |
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108 * Gets the status of the edit mode. |
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109 * |
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110 * @since Series 60 5.0 |
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111 * @return Edit mode state. |
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112 */ |
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113 CXnEditMode::TEditState EditState() const; |
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114 |
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115 /** |
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116 * This is for to re-initializing the double buffer when the orientations |
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117 * is changed |
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118 * |
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119 * @since Series 60 5.0 |
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120 */ |
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121 void HandleScreenDeviceChangedL(); |
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122 |
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123 private: |
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124 // new functions |
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125 |
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126 /** |
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127 * Organizing starts using drag and drop. |
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128 * |
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129 * @since Series 60 5.0 |
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130 * @param aNode Node to drag. |
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131 */ |
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132 void StartDragL( CXnNode& aNode ); |
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133 |
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134 /** |
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135 * Reset the dragging state and deletes screenshot bitmaps. |
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136 * |
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137 * @since Series 60 5.0 |
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138 */ |
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139 void StopDragL(); |
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140 |
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141 /** |
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142 * Updates invalid parts of the screen. Calls internally DrawNow |
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143 * |
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144 * @since Series 60 5.0 |
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145 */ |
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146 void UpdateScreen(); |
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147 |
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148 /** |
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149 * Sets the title for status pane |
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150 * |
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151 * @since Series 60 5.0 |
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152 */ |
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153 void SetStatusPaneTitleL(); |
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154 |
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155 private: |
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156 // Constructors |
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157 |
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158 /** |
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159 * C++ default constructor. |
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160 */ |
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161 CXnEditMode( CXnUiEngine& aEngine ); |
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162 |
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163 /** |
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164 * 2nd phase constructor. |
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165 */ |
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166 void ConstructL(); |
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167 |
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168 private: |
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169 // Data |
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170 |
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171 /** |
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172 * UI engine |
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173 * Not own. |
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174 */ |
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175 CXnUiEngine& iUiEngine; |
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176 |
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177 /** |
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178 * View manager |
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179 * Not own. |
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180 */ |
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181 CXnViewManager& iViewManager; |
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182 |
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183 /** |
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184 * Screenshot of part of mainpane |
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185 * Owned |
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186 */ |
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187 CFbsBitmap* iMainpane; |
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188 |
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189 /** |
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190 * Screenshot of widget |
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191 * Owned |
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192 */ |
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193 CFbsBitmap* iWidget; |
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194 |
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195 /** |
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196 * Mapping Gc |
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197 * Owned |
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198 */ |
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199 CWindowToBitmapMappingGc* iMapGc; |
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200 |
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201 /** |
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202 * Bmp device |
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203 * Owned |
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204 */ |
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205 CFbsBitmapDevice* iBmpDevice; |
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206 |
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207 /** |
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208 * Bmp Gc |
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209 * Owned |
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210 */ |
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211 CFbsBitGc* iBmpGc; |
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212 |
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213 /** |
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214 * A pointer to the node that is being dragged. |
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215 * Not own. |
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216 */ |
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217 CXnNode* iDraggingNode; |
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218 |
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219 /** |
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220 * A pointer to the node that is underneath of the dragging node. |
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221 * Not own. |
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222 */ |
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223 CXnNode* iTargetNode; |
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224 |
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225 /** |
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226 * State of edit mode |
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227 */ |
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228 CXnEditMode::TEditState iState; |
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229 |
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230 /** |
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231 * A point where dragging started from. |
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232 */ |
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233 TPoint iStylusDownPos; |
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234 |
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235 /** |
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236 * A point where drawing was done last time. |
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237 */ |
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238 TPoint iPreviousPos; |
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239 |
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240 /** |
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241 * Screenshot draw position |
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242 */ |
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243 TPoint iDrawPos; |
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244 |
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245 /** |
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246 * Last redraw rect |
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247 */ |
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248 TRect iLastDrawRect; |
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249 |
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250 /** |
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251 * Flag determine whether drag is occured |
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252 */ |
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253 TBool iDragged; |
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254 }; |
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255 |
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256 #endif |