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1 /* |
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2 * Copyright (c) 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: This class implements MMMADisplayWindow functionality |
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15 * for Camera viewfinder usage. |
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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 // Include Files |
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21 #include <eikenv.h> |
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22 #include <gdi.h> |
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23 #include <jdebug.h> |
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24 #include <AknsUtils.h> |
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25 #include <AknsDrawUtils.h> |
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26 |
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27 #include <cameraapp.mbg> |
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28 |
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29 // Used for iDisplay member |
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30 |
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31 #include "cmmacamerawindow.h" |
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32 |
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33 // Camera viewfinder start delay |
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34 const TInt KStarterTimeout = 100000; //100 msecs |
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35 |
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36 // Margin of icon displayed instead of viewfinder in case of error |
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37 const TInt KErrorIconMargin = 5; //5 pixels |
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38 |
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39 |
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40 _LIT(KCameraAppBitmapFile, "z:\\resource\\apps\\cameraapp.mif"); |
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41 |
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42 |
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43 // --------------------------------------------------------------------------- |
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44 // CMMACameraWindow::NewL |
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45 // Two-phased constructor. |
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46 // Use this method to create a CMMACameraWindow instance. |
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47 // --------------------------------------------------------------------------- |
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48 // |
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49 CMMACameraWindow* CMMACameraWindow::NewL(TInt aCameraHandle) |
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50 { |
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51 CMMACameraWindow* self = new(ELeave)CMMACameraWindow(aCameraHandle); |
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52 return self; |
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53 } |
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54 |
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55 |
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56 // --------------------------------------------------------------------------- |
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57 // CMMACameraWindow::~CMMACameraWindow |
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58 // Destructor. |
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59 // NOTE: iUICamera have to be deleted by ReleaseUiResources() called |
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60 // from UI thread |
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61 // --------------------------------------------------------------------------- |
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62 // |
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63 CMMACameraWindow::~CMMACameraWindow() |
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64 { |
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65 // It's not allowed to delete any nonsharable object here. |
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66 // This must be done in Destroy(). |
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67 // If the iDisplay is set, |
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68 // instance should be deleted by sending |
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69 // event from UI to be received by MUiEventConsumer. |
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70 } |
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71 |
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72 |
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73 // --------------------------------------------------------------------------- |
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74 // CMMACameraWindow::ViewFinderActive |
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75 // Gets an information if the viewfinder is started. |
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76 // --------------------------------------------------------------------------- |
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77 // |
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78 TBool CMMACameraWindow::ViewFinderActive() |
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79 { |
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80 return iUICamera && iViewFinderVisible; |
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81 } |
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82 |
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83 |
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84 // --------------------------------------------------------------------------- |
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85 // CMMACameraWindow::SetStarted |
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86 // Notifies window about Started state change. |
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87 // If started, tries to start viewfinder. |
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88 // If not started, stops viewfinder. |
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89 // --------------------------------------------------------------------------- |
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90 // |
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91 void CMMACameraWindow::SetStarted(TBool aStarted) |
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92 { |
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93 iStarted = aStarted; |
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94 if (iDisplay) |
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95 { |
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96 if (iStarted) |
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97 { |
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98 iDisplay->UIGetCallback( |
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99 *this, CMMACameraWindow::EShowViewFinder); |
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100 } |
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101 else |
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102 { |
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103 iDisplay->UIGetCallback( |
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104 *this, CMMACameraWindow::EHideViewFinder); |
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105 } |
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106 } |
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107 } |
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108 |
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109 |
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110 // --------------------------------------------------------------------------- |
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111 // CMMACameraWindow::SetDisplay |
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112 // Sets iDisplay used to invoke callbacks from UI thread. |
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113 // --------------------------------------------------------------------------- |
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114 // |
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115 void CMMACameraWindow::SetDisplay(MMMADisplay *aDisplay) |
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116 { |
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117 if (iDisplay != aDisplay) |
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118 { |
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119 if (iDisplay) |
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120 { |
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121 // Clear the resources created within the old Display |
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122 iDisplay->UIGetCallback( |
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123 *this, CMMACameraWindow::EDeleteViewFinder); |
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124 } |
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125 |
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126 // Set the new Display |
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127 iDisplay = aDisplay; |
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128 |
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129 if (iDisplay) |
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130 { |
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131 // Get a DSA resources for the new Display |
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132 iDisplay->UIGetDSAResources(*this, MMMADisplay::EMmaThread); |
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133 } |
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134 } |
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135 } |
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136 |
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137 |
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138 // --------------------------------------------------------------------------- |
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139 // From class MMMADisplayWindow |
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140 // CMMACameraWindow::SetDestinationBitmapL |
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141 // |
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142 // --------------------------------------------------------------------------- |
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143 // |
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144 void CMMACameraWindow::SetDestinationBitmapL(CFbsBitmap* /*aBitmap*/) |
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145 { |
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146 // Ignored, this window will not be used for actual drawing |
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147 DEBUG("CMMACameraWindow::SetDestinationBitmapL"); |
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148 } |
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149 |
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150 |
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151 // --------------------------------------------------------------------------- |
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152 // From class MMMADisplayWindow |
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153 // CMMACameraWindow::DrawFrameL |
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154 // |
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155 // --------------------------------------------------------------------------- |
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156 // |
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157 void CMMACameraWindow::DrawFrameL(const CFbsBitmap* /*aBitmap*/) |
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158 { |
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159 // Ignored, this window will not be used for actual drawing |
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160 } |
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161 |
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162 |
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163 // --------------------------------------------------------------------------- |
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164 // From class MMMADisplayWindow |
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165 // CMMACameraWindow::SetDrawRect |
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166 // |
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167 // --------------------------------------------------------------------------- |
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168 // |
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169 void CMMACameraWindow::SetDrawRect(const TRect& aRect) |
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170 { |
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171 // MMAPI thread |
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172 DEBUG_INT2("MMA::CMMACameraWindow::SetDrawRect TL:%d,%d", |
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173 aRect.iTl.iX, aRect.iTl.iY); |
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174 DEBUG_INT2("MMA::CMMACameraWindow::SetDrawRect BR:%d,%d", |
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175 aRect.iBr.iX, aRect.iBr.iY); |
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176 |
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177 iDrawRect = aRect; |
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178 |
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179 if (iDisplay) |
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180 { |
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181 iDisplay->UIGetCallback(*this, CMMACameraWindow::EResetViewFinder); |
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182 } |
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183 } |
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184 |
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185 |
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186 // --------------------------------------------------------------------------- |
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187 // From class MMMADisplayWindow |
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188 // CMMACameraWindow::SetDrawRectThread |
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189 // |
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190 // --------------------------------------------------------------------------- |
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191 // |
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192 void CMMACameraWindow::SetDrawRectThread(const TRect& aRect) |
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193 { |
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194 DEBUG_INT2("MMA::CMMACameraWindow::SetDrawRectThread TL:%d,%d", |
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195 aRect.iTl.iX, aRect.iTl.iY); |
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196 DEBUG_INT2("MMA::CMMACameraWindow::SetDrawRectThread BR:%d,%d", |
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197 aRect.iBr.iX, aRect.iBr.iY); |
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198 |
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199 // Note: Runs in UI thread only |
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200 |
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201 // Bitmap window's rect can be set in any thread. |
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202 if (iDrawRect != aRect) |
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203 { |
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204 iDrawRect = aRect; |
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205 |
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206 // Stop and start ViewFinder to update position |
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207 ResetViewFinder(); |
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208 } |
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209 } |
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210 |
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211 |
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212 // --------------------------------------------------------------------------- |
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213 // From class MMMADisplayWindow |
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214 // CMMACameraWindow::DrawRect |
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215 // |
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216 // --------------------------------------------------------------------------- |
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217 // |
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218 const TRect& CMMACameraWindow::DrawRect() |
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219 { |
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220 return iDrawRect; |
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221 } |
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222 |
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223 |
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224 // --------------------------------------------------------------------------- |
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225 // From class MMMADisplayWindow |
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226 // CMMACameraWindow::WindowSize |
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227 // |
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228 // --------------------------------------------------------------------------- |
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229 // |
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230 TSize CMMACameraWindow::WindowSize() |
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231 { |
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232 return iDrawRect.Size(); |
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233 } |
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234 |
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235 |
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236 // --------------------------------------------------------------------------- |
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237 // From class MMMADisplayWindow |
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238 // CMMACameraWindow::SetPosition |
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239 // |
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240 // --------------------------------------------------------------------------- |
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241 // |
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242 void CMMACameraWindow::SetPosition(const TPoint& aPosition) |
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243 { |
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244 // Note: Runs in UI thread only |
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245 SetDrawRectThread(TRect(aPosition, iDrawRect.Size())); |
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246 } |
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247 |
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248 |
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249 // --------------------------------------------------------------------------- |
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250 // From class MMMADisplayWindow |
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251 // CMMACameraWindow::SetVisible |
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252 // |
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253 // --------------------------------------------------------------------------- |
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254 // |
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255 void CMMACameraWindow::SetVisible(TBool aVisible, TBool aUseEventServer) |
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256 { |
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257 iVisible = aVisible; |
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258 |
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259 if (aUseEventServer) |
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260 { |
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261 // We are in UI thread now. |
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262 SetViewFinderVisibility(aVisible); |
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263 } |
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264 else |
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265 { |
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266 // MMAPI thread |
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267 if (iDisplay) |
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268 { |
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269 if (aVisible) |
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270 { |
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271 iDisplay->UIGetCallback( |
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272 *this, CMMACameraWindow::EShowViewFinder); |
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273 } |
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274 else |
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275 { |
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276 iDisplay->UIGetCallback( |
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277 *this, CMMACameraWindow::EHideViewFinder); |
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278 } |
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279 } |
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280 } |
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281 } |
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282 |
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283 |
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284 // --------------------------------------------------------------------------- |
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285 // From class MMMADisplayWindow |
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286 // CMMACameraWindow::SetWindowRect |
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287 // |
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288 // --------------------------------------------------------------------------- |
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289 // |
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290 void CMMACameraWindow::SetWindowRect( |
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291 const TRect& aRect, |
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292 MMMADisplay::TThreadType aThreadType) |
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293 { |
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294 DEBUG_INT2("MMA::CMMACameraWindow::SetWindowRect TL:%d,%d", |
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295 aRect.iTl.iX, aRect.iTl.iY); |
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296 DEBUG_INT2("MMA::CMMACameraWindow::SetWindowRect BR:%d,%d", |
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297 aRect.iBr.iX, aRect.iBr.iY); |
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298 |
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299 if (iClientRect != aRect) |
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300 { |
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301 iClientRect = aRect; |
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302 |
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303 if (aThreadType == MMMADisplay::EUiThread) |
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304 { |
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305 ResetViewFinder(); |
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306 } |
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307 else |
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308 { |
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309 iDisplay->UIGetCallback( |
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310 *this, CMMACameraWindow::EResetViewFinder); |
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311 } |
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312 } |
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313 } |
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314 |
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315 |
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316 // --------------------------------------------------------------------------- |
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317 // From class MMMADisplayWindow |
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318 // CMMACameraWindow::WindowRect |
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319 // |
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320 // --------------------------------------------------------------------------- |
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321 // |
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322 const TRect& CMMACameraWindow::WindowRect() |
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323 { |
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324 return iClientRect; |
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325 } |
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326 |
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327 |
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328 // --------------------------------------------------------------------------- |
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329 // From class MMMADisplayWindow |
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330 // CMMACameraWindow::GetDisplayWindowType |
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331 // |
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332 // --------------------------------------------------------------------------- |
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333 // |
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334 MMMADisplayWindow::TDisplayWindowType |
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335 CMMACameraWindow::GetDisplayWindowType() const |
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336 { |
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337 return EDisplayWindowTypeIsCamera; |
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338 } |
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339 |
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340 |
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341 // --------------------------------------------------------------------------- |
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342 // From class MMMADisplayWindow |
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343 // CMMACameraWindow::IsVisible |
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344 // |
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345 // --------------------------------------------------------------------------- |
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346 // |
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347 TBool CMMACameraWindow::IsVisible() const |
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348 { |
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349 return iVisible; |
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350 } |
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351 |
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352 |
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353 // --------------------------------------------------------------------------- |
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354 // From class MMMADisplayWindow |
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355 // CMMACameraWindow::ContainerSet |
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356 // |
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357 // --------------------------------------------------------------------------- |
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358 // |
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359 void CMMACameraWindow::ContainerSet() |
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360 { |
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361 // We are in UI thread now |
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362 |
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363 // Container was probably not set when |
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364 // iDisplay was set, |
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365 // we can now try get the DSA stuff again |
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366 if (!iUICamera && iDisplay) |
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367 { |
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368 // Get a DSA stuff for the new Display |
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369 iDisplay->UIGetDSAResources(*this, MMMADisplay::EUiThread); |
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370 } |
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371 } |
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372 |
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373 |
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374 // --------------------------------------------------------------------------- |
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375 // From class MMMADisplayWindow |
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376 // CMMACameraWindow::ContainerDestroyed |
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377 // |
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378 // --------------------------------------------------------------------------- |
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379 // |
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380 void CMMACameraWindow::ContainerDestroyed() |
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381 { |
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382 // We are in UI thread now |
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383 ReleaseUiResources(); |
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384 } |
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385 |
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386 |
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387 // --------------------------------------------------------------------------- |
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388 // From class MCameraObserver |
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389 // CMMACameraWindow::ReserveComplete |
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390 // |
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391 // --------------------------------------------------------------------------- |
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392 // |
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393 void CMMACameraWindow::ReserveComplete(TInt aError) |
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394 { |
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395 DEBUG_INT("MMA::CMMACameraWindow::ReserveComplete %d", aError); |
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396 |
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397 if (aError == KErrNone) |
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398 { |
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399 // camera will notify completion with PowerOnComplete method. |
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400 iUICamera->PowerOn(); |
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401 } |
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402 } |
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403 |
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404 |
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405 // --------------------------------------------------------------------------- |
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406 // From class MCameraObserver |
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407 // CMMACameraWindow::PowerOnComplete |
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408 // |
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409 // --------------------------------------------------------------------------- |
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410 // |
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411 void CMMACameraWindow::PowerOnComplete(TInt aError) |
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412 { |
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413 DEBUG_INT("MMA::CMMACameraWindow::PowerOnComplete %d", aError); |
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414 |
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415 if (aError == KErrNone) |
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416 { |
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417 iCameraPowerOn = ETrue; |
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418 SetViewFinderVisibility(ETrue); |
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419 } |
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420 } |
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421 |
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422 |
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423 // --------------------------------------------------------------------------- |
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424 // From class MCameraObserver |
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425 // CMMACameraWindow::ViewFinderFrameReady |
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426 // |
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427 // --------------------------------------------------------------------------- |
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428 // |
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429 void CMMACameraWindow::ViewFinderFrameReady(CFbsBitmap& /*aFrame*/) |
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430 { |
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431 // Empty implementation of the interface method |
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432 DEBUG("MMA::CMMACameraWindow::ViewFinderFrameReady"); |
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433 } |
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434 |
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435 |
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436 // --------------------------------------------------------------------------- |
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437 // From class MCameraObserver |
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438 // CMMACameraWindow::ImageReady |
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439 // |
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440 // --------------------------------------------------------------------------- |
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441 // |
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442 void CMMACameraWindow::ImageReady(CFbsBitmap* /*aBitmap*/, |
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443 HBufC8* /*aData*/, |
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444 TInt /*aError*/) |
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445 { |
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446 // Empty implementation of the interface method |
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447 DEBUG("MMA::CMMACameraWindow::ImageReady"); |
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448 } |
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449 |
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450 |
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451 // --------------------------------------------------------------------------- |
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452 // From class MCameraObserver |
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453 // CMMACameraWindow::FrameBufferReady |
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454 // |
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455 // --------------------------------------------------------------------------- |
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456 // |
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457 void CMMACameraWindow::FrameBufferReady(MFrameBuffer* /*aFrameBuffer*/, |
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458 TInt /*aError*/) |
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459 { |
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460 // Empty implementation of the interface method |
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461 DEBUG("MMA::CMMACameraWindow::FrameBufferReady"); |
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462 } |
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463 |
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464 |
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465 // --------------------------------------------------------------------------- |
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466 // From class MDirectScreenAccess. |
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467 // CMMACameraWindow::AbortNow |
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468 // |
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469 // --------------------------------------------------------------------------- |
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470 // |
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471 void CMMACameraWindow::AbortNow( |
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472 RDirectScreenAccess::TTerminationReasons /*aReasons*/) |
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473 { |
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474 SetViewFinderVisibility(EFalse); |
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475 } |
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476 |
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477 |
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478 // --------------------------------------------------------------------------- |
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479 // From class MDirectScreenAccess. |
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480 // CMMACameraWindow::Restart |
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481 // |
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482 // --------------------------------------------------------------------------- |
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483 // |
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484 void CMMACameraWindow::Restart( |
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485 RDirectScreenAccess::TTerminationReasons /*aReasons*/) |
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486 { |
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487 SetViewFinderVisibility(ETrue); |
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488 } |
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489 |
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490 |
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491 // --------------------------------------------------------------------------- |
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492 // CMMACameraWindow::CMMACameraWindow |
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493 // C++ constructor. |
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494 // --------------------------------------------------------------------------- |
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495 // |
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496 CMMACameraWindow::CMMACameraWindow(TInt aCameraHandle): |
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497 iVisible(EFalse), |
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498 iStarted(EFalse), |
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499 iViewFinderVisible(EFalse), |
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500 iCameraPowerOn(EFalse), |
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501 iDrawRect(0, 0, 0, 0), |
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502 iClientRect(0, 0, 0, 0), |
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503 iCameraHandle(aCameraHandle), |
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504 iUICamera(NULL), |
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505 iDisplay(NULL), |
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506 iStarterTimer(NULL), |
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507 iDirectAccess(NULL), |
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508 iErrorIconBitmap(NULL), |
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509 iErrorIconMaskBitmap(NULL), |
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510 iRWindowRect(0, 0, 0, 0) |
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511 { |
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512 } |
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513 |
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514 |
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515 // --------------------------------------------------------------------------- |
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516 // CMMACameraWindow::UIStartViewFinder |
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517 // Creates UI Camera. |
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518 // This CCamera instance is duplicated from handle given to the constructor. |
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519 // Have to be called from the thread which UI Camera will be controlled from. |
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520 // --------------------------------------------------------------------------- |
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521 // |
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522 void CMMACameraWindow::UIStartViewFinder( |
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523 RWsSession &aWs, |
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524 CWsScreenDevice &aScreenDevice, |
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525 RWindowBase &aWindow) |
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526 { |
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527 DEBUG("MMA::CMMACameraWindow::UIStartViewFinder"); |
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528 |
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529 iWs = &aWs; |
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530 iScreenDevice = &aScreenDevice; |
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531 iWindow = &aWindow; |
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532 |
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533 if (!iUICamera) |
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534 { |
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535 TRAPD(error, iUICamera = |
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536 CCamera::NewDuplicateL(*this, iCameraHandle)); |
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537 |
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538 DEBUG_INT( |
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539 "MMA::CMMACameraWindow::UIStartViewFinder - NewDuplicateL %d", |
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540 error); |
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541 |
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542 if (error == KErrNone) |
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543 { |
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544 iUICamera->Reserve(); |
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545 } |
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546 } |
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547 } |
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548 |
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549 |
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550 // --------------------------------------------------------------------------- |
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551 // CMMACameraWindow::SetViewFinderVisibility |
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552 // If UI Camera have been created, it starts/hides the DirectViewFinder. |
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553 // Have to be called from UI thread in which iUICamera instance was created. |
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554 // --------------------------------------------------------------------------- |
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555 // |
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556 void CMMACameraWindow::SetViewFinderVisibility(TBool aVisible) |
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557 { |
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558 DEBUG_INT("MMA::CMMACameraWindow::SetViewFinderVisibility - %d", |
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559 aVisible); |
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560 |
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561 if (!iUICamera || !iCameraPowerOn || iViewFinderVisible == aVisible) |
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562 { |
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563 return; |
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564 } |
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565 |
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566 if (aVisible) |
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567 { |
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568 // Viewfinder is going to start |
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569 if (!iVisible || !iStarted) |
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570 { |
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571 return; |
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572 } |
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573 |
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574 iViewFinderVisible = ETrue; |
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575 |
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576 if (!iStarterTimer) |
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577 { |
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578 // If starter timer haven't been created yet, create an instance |
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579 TRAPD( |
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580 timerErr, |
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581 iStarterTimer = CPeriodic::NewL(CActive::EPriorityIdle)); |
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582 |
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583 if (timerErr != KErrNone) |
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584 { |
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585 DEBUG_INT( |
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586 "MMA::CMMACameraWindow::SetViewFinderVisibility - timer error = %d", |
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587 timerErr); |
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588 __ASSERT_DEBUG(EFalse, User::Invariant()); |
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589 } |
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590 } |
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591 |
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592 if (!iStarterTimer->IsActive()) |
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593 { |
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594 iStarterTimer->Start( |
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595 KStarterTimeout, |
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596 0, |
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597 TCallBack(StarterTimerCallback, this)); |
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598 } |
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599 } |
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600 else |
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601 { |
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602 // Viewfinder is going to be cancelled |
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603 DEBUG( |
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604 "MMA::CMMACameraWindow::SetViewFinderVisibility - Stopping VF"); |
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605 |
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606 if (iStarterTimer && iStarterTimer->IsActive()) |
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607 { |
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608 // Cancel the running starter timer |
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609 iStarterTimer->Cancel(); |
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610 } |
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611 |
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612 if (iUICamera->ViewFinderActive()) |
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613 { |
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614 iUICamera->StopViewFinder(); |
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615 } |
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616 |
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617 iViewFinderVisible = EFalse; |
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618 } |
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619 } |
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620 |
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621 |
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622 // --------------------------------------------------------------------------- |
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623 // CMMACameraWindow::StarterTimerCallback |
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624 // Executed at the expiry of the iStartedTimer. |
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625 // --------------------------------------------------------------------------- |
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626 // |
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627 TInt CMMACameraWindow::StarterTimerCallback(TAny* aThis) |
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628 { |
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629 CMMACameraWindow* self = static_cast<CMMACameraWindow*>(aThis); |
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630 ASSERT(self); |
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631 |
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632 self->StartViewFinder(); |
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633 |
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634 // We don't want to run the callback again |
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635 return EFalse; |
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636 } |
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637 |
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638 |
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639 // --------------------------------------------------------------------------- |
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640 // From class MMMADisplayWindow |
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641 // CMMACameraWindow::SetRWindowRect |
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642 // |
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643 // --------------------------------------------------------------------------- |
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644 // |
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645 void CMMACameraWindow::SetRWindowRect(const TRect& aRect, |
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646 MMMADisplay::TThreadType aThreadType) |
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647 { |
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648 DEBUG_INT2("MID::CMMACameraWindow::SetRWindowRect TL %d %d", |
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649 aRect.iTl.iX, aRect.iTl.iY); |
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650 DEBUG_INT2("MID::CMMACameraWindow::SetRWindowRect BR %d %d", |
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651 aRect.iBr.iX, aRect.iBr.iY); |
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652 |
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653 iRWindowRect = aRect; |
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654 |
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655 if (MMMADisplay::EMmaThread == aThreadType) |
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656 { |
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657 if (iDisplay) |
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658 { |
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659 iDisplay->UIGetCallback(*this, |
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660 CMMACameraWindow::EResetViewFinder); |
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661 } |
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662 } |
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663 else if (MMMADisplay::EUiThread == aThreadType) |
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664 { |
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665 ResetViewFinder(); |
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666 } |
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667 } |
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668 |
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669 |
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670 // --------------------------------------------------------------------------- |
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671 // CMMACameraWindow::StartViewFinder |
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672 // Starts viewfinder. |
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673 // --------------------------------------------------------------------------- |
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674 // |
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675 void CMMACameraWindow::StartViewFinder() |
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676 { |
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677 DEBUG(" < StartViewFinder"); |
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678 |
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679 ASSERT(iUICamera); |
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680 ASSERT(iCameraPowerOn); |
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681 ASSERT(iStarted); |
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682 |
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683 iStarterTimer->Cancel(); |
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684 |
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685 // align client rect to RWindow, viewfinder |
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686 // display co-ordinates is w.r.t to RWindow |
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687 TRect relativeClientRect; |
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688 relativeClientRect = iClientRect; |
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689 relativeClientRect.Move(-iRWindowRect.iTl); |
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690 |
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691 // Set the drawing area |
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692 TRect drawRect(iDrawRect); |
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693 drawRect.Move(relativeClientRect.iTl); |
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694 |
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695 DEBUG_INT2( |
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696 "MMA::CMMACameraWindow::StartViewFinder - Starting VF TL:%d,%d", |
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697 drawRect.iTl.iX, |
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698 drawRect.iTl.iY); |
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699 DEBUG_INT2( |
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700 "MMA::CMMACameraWindow::StartViewFinder - Starting VF BR:%d,%d", |
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701 drawRect.iBr.iX, |
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702 drawRect.iBr.iY); |
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703 |
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704 TRAPD(vfError, iUICamera->StartViewFinderDirectL( |
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705 *iWs, *iScreenDevice, *iWindow, drawRect)); |
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706 |
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707 if (vfError == KErrNone) |
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708 { |
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709 DEBUG("MMA::CMMACameraWindow::StartViewFinder - Start OK"); |
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710 } |
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711 else |
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712 { |
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713 DEBUG_INT("MMA::CMMACameraWindow::StartViewFinder() - \ |
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714 StartViewFinderDirectL error=%d", vfError); |
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715 |
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716 TRAPD(error, DrawViewFinderErrorL(vfError, drawRect)); |
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717 if (KErrNone != error) |
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718 { |
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719 DEBUG_INT("MMA::CMMACameraWindow::StartViewFinder, \ |
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720 DrawViewFinderErrorL error = %d", error); |
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721 } |
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722 } |
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723 |
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724 DEBUG(" > StartViewFinder"); |
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725 } |
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726 |
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727 |
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728 // --------------------------------------------------------------------------- |
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729 // CMMACameraWindow::DrawViewFinderError() |
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730 // Draws the error message to specified area. |
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731 // Used in cases when viewfinder is unable to start. |
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732 // --------------------------------------------------------------------------- |
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733 // |
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734 void CMMACameraWindow::DrawViewFinderErrorL( |
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735 const TInt /*aError*/, |
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736 const TRect& aDrawRect) |
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737 { |
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738 if (!iDirectAccess) |
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739 { |
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740 if (!iWs || !iScreenDevice || !iWindow) return; |
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741 |
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742 DEBUG("MMA::CMMACameraWindow::DrawViewFinderErrorL - \ |
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743 Instantiating CDirectScreenAccess"); |
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744 iDirectAccess = CDirectScreenAccess::NewL(*iWs, |
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745 *iScreenDevice, |
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746 *iWindow, |
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747 *this); |
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748 } |
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749 |
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750 TInt dcError = KErrNone; |
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751 if (!iDirectAccess->IsActive()) |
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752 { |
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753 TRAP(dcError, iDirectAccess->StartL()); |
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754 } |
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755 |
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756 TRect drawRect(aDrawRect); |
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757 |
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758 if (dcError == KErrNone) |
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759 { |
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760 drawRect.Intersection(iClientRect); |
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761 drawRect.Move(-iWindow->AbsPosition()); |
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762 |
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763 CFbsBitGc* directGc = iDirectAccess->Gc(); |
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764 directGc->SetClippingRect(drawRect); |
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765 directGc->SetBrushColor(TRgb(128,128,128)); |
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766 directGc->SetPenColor(TRgb(128,0,0)); |
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767 directGc->SetBrushStyle(CGraphicsContext::ESolidBrush); |
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768 directGc->SetPenStyle(CGraphicsContext::ESolidPen); |
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769 directGc->SetDrawMode(CGraphicsContext::EDrawModeWriteAlpha); |
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770 directGc->DrawRect(drawRect); |
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771 |
|
772 if (!iErrorIconBitmap || !iErrorIconMaskBitmap) |
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773 { |
|
774 if (iErrorIconBitmap) |
|
775 { |
|
776 delete iErrorIconBitmap; |
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777 iErrorIconBitmap = NULL; |
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778 } |
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779 |
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780 if (iErrorIconMaskBitmap) |
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781 { |
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782 delete iErrorIconMaskBitmap; |
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783 iErrorIconMaskBitmap = NULL; |
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784 } |
|
785 |
|
786 AknsUtils::CreateIconL( |
|
787 AknsUtils::SkinInstance(), |
|
788 KAknsIIDQgnIndiCam4Camera, |
|
789 iErrorIconBitmap, |
|
790 iErrorIconMaskBitmap, |
|
791 KCameraAppBitmapFile, |
|
792 EMbmCameraappQgn_indi_cam4_camera, |
|
793 EMbmCameraappQgn_indi_cam4_camera_mask |
|
794 ); |
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795 } |
|
796 |
|
797 //TRect iconRect |
|
798 drawRect.iTl.iX += KErrorIconMargin; |
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799 drawRect.iTl.iY += KErrorIconMargin; |
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800 drawRect.iBr.iX -= KErrorIconMargin; |
|
801 drawRect.iBr.iY -= KErrorIconMargin; |
|
802 |
|
803 if (iErrorIconBitmap->SizeInPixels() != drawRect.Size()) |
|
804 { |
|
805 AknIconUtils::SetSize(iErrorIconBitmap, drawRect.Size()); |
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806 AknIconUtils::SetSize(iErrorIconMaskBitmap, drawRect.Size()); |
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807 } |
|
808 |
|
809 directGc->BitBltMasked( |
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810 drawRect.iTl, iErrorIconBitmap, |
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811 TRect(iErrorIconBitmap->SizeInPixels()), |
|
812 iErrorIconMaskBitmap, EFalse); |
|
813 |
|
814 iDirectAccess->ScreenDevice()->Update(); |
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815 } |
|
816 |
|
817 } |
|
818 |
|
819 |
|
820 // --------------------------------------------------------------------------- |
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821 // CMMACameraWindow::ReleaseUiResources() |
|
822 // Stops the DirectViewFinder and deletes UI Camera instance |
|
823 // Have to be called from UI thread in which UI Camera |
|
824 // have been created before the CMMACameraWindow instance |
|
825 // is deleted. |
|
826 // --------------------------------------------------------------------------- |
|
827 // |
|
828 void CMMACameraWindow::ReleaseUiResources() |
|
829 { |
|
830 if (iUICamera) |
|
831 { |
|
832 SetViewFinderVisibility(EFalse); |
|
833 // iStarterTimer is cancelled by previous call |
|
834 // it can be deleted now |
|
835 delete iStarterTimer; |
|
836 iStarterTimer = NULL; |
|
837 iUICamera->Release(); |
|
838 delete iUICamera; |
|
839 iUICamera = NULL; |
|
840 iCameraPowerOn = EFalse; |
|
841 if (iDirectAccess) |
|
842 { |
|
843 iDirectAccess->Cancel(); |
|
844 delete iDirectAccess; |
|
845 iDirectAccess = NULL; |
|
846 } |
|
847 delete iErrorIconBitmap; |
|
848 iErrorIconBitmap = NULL; |
|
849 delete iErrorIconMaskBitmap; |
|
850 iErrorIconMaskBitmap = NULL; |
|
851 } |
|
852 } |
|
853 |
|
854 |
|
855 // --------------------------------------------------------------------------- |
|
856 // CMMACameraWindow::ResetViewFinder |
|
857 // Resets (stops and starts) viewfinder |
|
858 // --------------------------------------------------------------------------- |
|
859 // |
|
860 void CMMACameraWindow::ResetViewFinder() |
|
861 { |
|
862 |
|
863 if (iStarterTimer && !iStarterTimer->IsActive() && iStarted) |
|
864 { |
|
865 SetViewFinderVisibility(EFalse); |
|
866 SetViewFinderVisibility(ETrue); |
|
867 } |
|
868 } |
|
869 |
|
870 |
|
871 // --------------------------------------------------------------------------- |
|
872 // CMMACameraWindow::Destroy |
|
873 // Deletes this object. |
|
874 // --------------------------------------------------------------------------- |
|
875 // |
|
876 void CMMACameraWindow::Destroy() |
|
877 { |
|
878 // Delete itself |
|
879 delete this; |
|
880 } |
|
881 |
|
882 |
|
883 // --------------------------------------------------------------------------- |
|
884 // From class MUiEventConsumer. |
|
885 // CMMACameraWindow::MdcDSAResourcesCallback |
|
886 // Callback to iDisplay->UIGetDSAResources(). |
|
887 // Invoked asynchronously from UI Event Server thread. |
|
888 // --------------------------------------------------------------------------- |
|
889 // |
|
890 void CMMACameraWindow::MdcDSAResourcesCallback( |
|
891 RWsSession &aWs, |
|
892 CWsScreenDevice &aScreenDevice, |
|
893 RWindowBase &aWindow) |
|
894 { |
|
895 this->UIStartViewFinder(aWs, aScreenDevice, aWindow); |
|
896 } |
|
897 |
|
898 |
|
899 // --------------------------------------------------------------------------- |
|
900 // From class MUiEventConsumer. |
|
901 // CMMACameraWindow::MdcUICallback |
|
902 // Callback to iDisplay->UIGetCallback(). |
|
903 // Invoked asynchronously from UI Event Server thread. |
|
904 // --------------------------------------------------------------------------- |
|
905 // |
|
906 void CMMACameraWindow::MdcUICallback(TInt aCallbackId) |
|
907 { |
|
908 DEBUG("MMA::CMMACameraWindow::MdcUICallback"); |
|
909 |
|
910 switch (aCallbackId) |
|
911 { |
|
912 case EDeleteViewFinder: |
|
913 ReleaseUiResources(); |
|
914 break; |
|
915 case EHideViewFinder: |
|
916 SetViewFinderVisibility(EFalse); |
|
917 break; |
|
918 case EShowViewFinder: |
|
919 SetViewFinderVisibility(ETrue); |
|
920 break; |
|
921 case EResetViewFinder: |
|
922 ResetViewFinder(); |
|
923 break; |
|
924 case EDestroyWindow: |
|
925 Destroy(); |
|
926 break; |
|
927 } |
|
928 } |
|
929 |
|
930 |
|
931 // END OF FILE |