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1 /* |
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2 * Copyright (c) 2010 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: Carousel widget for Symbian Homescreen |
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15 * |
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16 */ |
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17 |
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18 #include <ecom/implementationproxy.h> |
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19 #include <aknphysics.h> |
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20 #include <gulicon.h> |
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21 #include <AknIconUtils.h> |
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22 #include <AknsDrawUtils.h> |
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23 #include <xnexteventhandler.h> |
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24 #include "carouselwidget.h" |
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25 |
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26 const TSize KIconSize(70,70); |
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27 const TInt KItemPadding( 6 ); |
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28 |
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29 _LIT( KLaunchByIndex, "LaunchByIndex("); |
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30 |
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31 template< class PtrT > inline PtrT* UnpackPtr( |
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32 const TDesC8& aBuf ) |
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33 { |
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34 TAny* result( NULL ); |
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35 |
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36 if ( aBuf.Size() == sizeof( TAny* ) ) |
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37 { |
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38 // Effectively writes aBuf contents to result |
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39 TPckg< TAny* >( result ).Copy( aBuf ); |
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40 } |
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41 |
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42 return static_cast< PtrT* >( result ); |
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43 } |
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44 // ============================ MEMBER FUNCTIONS =============================== |
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45 CCarouselItem::CCarouselItem( CFbsBitmap* aBitmap, CFbsBitmap* aMask) |
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46 :iBitmap( aBitmap ), iMask( aMask ) |
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47 { |
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48 } |
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49 |
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50 CCarouselItem::~CCarouselItem() |
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51 { |
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52 delete iBitmap; |
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53 delete iMask; |
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54 delete iText; |
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55 } |
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56 |
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57 void CCarouselItem::SetTextL( const TDesC& aText ) |
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58 { |
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59 delete iText; |
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60 iText = NULL; |
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61 iText = aText.AllocL(); |
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62 } |
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63 |
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64 // ============================ MEMBER FUNCTIONS =============================== |
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65 |
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66 // ----------------------------------------------------------------------------- |
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67 // Symbian static 1st phase constructor |
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68 // ----------------------------------------------------------------------------- |
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69 // |
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70 CCarouselWidget* CCarouselWidget::NewL() |
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71 { |
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72 CCarouselWidget* self = new( ELeave ) CCarouselWidget(); |
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73 CleanupStack::PushL( self ); |
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74 self->ConstructL(); |
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75 CleanupStack::Pop( self ); |
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76 return self; |
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77 } |
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78 |
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79 // ----------------------------------------------------------------------------- |
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80 // C++ destructor |
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81 // ----------------------------------------------------------------------------- |
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82 // |
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83 CCarouselWidget::~CCarouselWidget() |
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84 { |
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85 delete iPhysics; |
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86 iStripeItems.ResetAndDestroy(); |
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87 //delete iCover; |
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88 } |
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89 |
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90 // ----------------------------------------------------------------------------- |
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91 // Symbian 2nd phase constructor can leave. |
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92 // ----------------------------------------------------------------------------- |
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93 // |
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94 void CCarouselWidget::ConstructL() |
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95 { |
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96 |
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97 } |
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98 |
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99 // ----------------------------------------------------------------------------- |
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100 // Handles key events. |
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101 // ----------------------------------------------------------------------------- |
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102 // |
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103 TKeyResponse CCarouselWidget::OfferKeyEventL( const TKeyEvent& /*aKeyEvent*/, |
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104 TEventCode /*aType*/ ) |
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105 { |
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106 return EKeyWasConsumed; |
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107 } |
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108 |
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109 // ----------------------------------------------------------------------------- |
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110 // Set window for this control |
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111 // ----------------------------------------------------------------------------- |
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112 // |
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113 void CCarouselWidget::SetContainerWindowL( const CCoeControl &aContainer ) |
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114 { |
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115 CCoeControl::SetContainerWindowL( aContainer ); |
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116 } |
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117 |
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118 // ----------------------------------------------------------------------------- |
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119 // (other items were commented in a header). |
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120 // ----------------------------------------------------------------------------- |
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121 // |
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122 void CCarouselWidget::HandlePointerEventL( const TPointerEvent& aPointerEvent ) |
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123 { |
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124 if( !iPhysics ) |
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125 { |
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126 return; |
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127 } |
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128 TPoint stylusPos( aPointerEvent.iPosition ); |
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129 switch( aPointerEvent.iType ) |
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130 { |
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131 case TPointerEvent::EButton1Down: |
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132 { |
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133 iPhysics->StopPhysics(); |
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134 iPhysics->ResetFriction(); |
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135 iStartPosition = stylusPos; |
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136 iStartTime.HomeTime(); |
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137 iStylusPosition = stylusPos; |
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138 iDrawHighlight = ETrue; |
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139 } |
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140 break; |
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141 |
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142 case TPointerEvent::EButton1Up: |
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143 { |
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144 iDrawHighlight = EFalse; |
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145 TInt distance = iStartPosition.iX - stylusPos.iX; |
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146 if( Abs(distance) <= iPhysics->DragThreshold() ) |
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147 { |
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148 LaunchItemL( stylusPos ); |
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149 } |
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150 else |
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151 { |
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152 TPoint drag( distance, 0 ); |
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153 iPhysics->StartPhysics( drag, iStartTime ); |
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154 } } |
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155 break; |
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156 case TPointerEvent::EDrag: |
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157 case TPointerEvent::EMove: |
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158 { |
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159 TPoint dragTh( iStartPosition - stylusPos ); |
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160 if( Abs(dragTh.iX) > iPhysics->DragThreshold() || |
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161 Abs(dragTh.iY) > iPhysics->DragThreshold()) |
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162 { |
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163 iDrawHighlight = EFalse; |
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164 } |
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165 TInt deltaX( iStylusPosition.iX - stylusPos.iX ); |
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166 iStylusPosition = stylusPos; |
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167 TPoint deltaPoint( deltaX, 0 ); |
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168 iPhysics->RegisterPanningPosition( deltaPoint ); |
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169 } |
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170 break; |
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171 default: |
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172 break; |
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173 } |
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174 |
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175 CCoeControl::HandlePointerEventL( aPointerEvent ); |
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176 } |
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177 |
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178 // ----------------------------------------------------------------------------- |
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179 // Returns the number of component controls |
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180 // ----------------------------------------------------------------------------- |
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181 // |
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182 TInt CCarouselWidget::CountComponentControls() const |
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183 { |
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184 return 0; |
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185 } |
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186 |
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187 // ----------------------------------------------------------------------------- |
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188 // Returns the specified control |
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189 // ----------------------------------------------------------------------------- |
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190 // |
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191 CCoeControl* CCarouselWidget::ComponentControl( TInt /*aIndex*/ ) const |
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192 { |
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193 return NULL; |
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194 } |
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195 |
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196 // ----------------------------------------------------------------------------- |
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197 // Skin change notification. |
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198 // ----------------------------------------------------------------------------- |
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199 // |
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200 void CCarouselWidget::SkinChanged() |
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201 { |
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202 } |
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203 |
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204 // ----------------------------------------------------------------------------- |
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205 // CCarouselWidget::EnterPowerSaveModeL |
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206 // |
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207 // ----------------------------------------------------------------------------- |
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208 // |
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209 void CCarouselWidget::EnterPowerSaveModeL() |
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210 { |
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211 } |
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212 |
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213 // ----------------------------------------------------------------------------- |
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214 // CCarouselWidget::ExitPowerSaveModeL |
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215 // |
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216 // ----------------------------------------------------------------------------- |
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217 // |
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218 void CCarouselWidget::ExitPowerSaveModeL() |
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219 { |
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220 } |
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221 |
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222 // ----------------------------------------------------------------------------- |
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223 // Called if focus changes |
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224 // ----------------------------------------------------------------------------- |
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225 // |
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226 void CCarouselWidget::FocusChanged( TDrawNow /*aDrawNow*/ ) |
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227 { |
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228 } |
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229 |
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230 // ----------------------------------------------------------------------------- |
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231 // Called if position or size changes |
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232 // ----------------------------------------------------------------------------- |
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233 // |
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234 void CCarouselWidget::SizeChanged() |
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235 { |
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236 iViewPort = Rect(); |
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237 TRAP_IGNORE( InitPhysicEngineL() ); |
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238 DrawNow(); |
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239 } |
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240 |
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241 // ----------------------------------------------------------------------------- |
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242 // Sets the external event handler interface. |
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243 // ----------------------------------------------------------------------------- |
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244 // |
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245 void CCarouselWidget::SetEventHandler( MXnExtEventHandler* aEventHandler ) |
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246 { |
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247 iEventHandler = aEventHandler; |
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248 } |
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249 |
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250 // ----------------------------------------------------------------------------- |
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251 // Data stream from the publisher |
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252 // ----------------------------------------------------------------------------- |
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253 // |
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254 void CCarouselWidget::SetDataL( const TDesC8& aData, const TDesC& aType, TInt aIndex ) |
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255 { |
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256 /// Unpack the data stream, works because publisher is in same process. |
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257 CGulIcon* icon( UnpackPtr<CGulIcon>( aData ) ); |
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258 CleanupStack::PushL( icon ); |
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259 AknIconUtils::SetSize( icon->Bitmap(), KIconSize); |
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260 |
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261 CCarouselItem* item = new ( ELeave ) CCarouselItem(/* *iEditor,*/ icon->Bitmap(), icon->Mask() ); |
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262 CleanupStack::PopAndDestroy( icon ); |
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263 |
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264 if( aType == _L("Appstripe/widget")) |
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265 { |
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266 if( iStripeItems.Count() <= aIndex ) |
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267 { |
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268 iStripeItems.AppendL( item ); |
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269 InitPhysicEngineL(); |
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270 } |
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271 else |
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272 { |
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273 CCarouselItem* citem = iStripeItems[ aIndex ]; |
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274 delete citem; |
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275 iStripeItems.Remove( aIndex ); |
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276 iStripeItems.Insert( item, aIndex ); |
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277 } |
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278 DrawNow(); |
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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 // Draws the carousel component |
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284 // ----------------------------------------------------------------------------- |
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285 // |
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286 void CCarouselWidget::Draw( const TRect& /*aRect*/ ) const |
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287 { |
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288 CWindowGc& gc( SystemGc() ); |
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289 gc.SetClippingRect( iViewPort ); |
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290 TRect bitmapRect( TPoint(0,0), KIconSize ); |
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291 TPoint point( iViewPort.iTl ); |
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292 point.iX -= iViewPosition.iX; |
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293 |
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294 TInt count = iStripeItems.Count(); |
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295 for( TInt i = 0; i < count; i++ ) |
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296 { |
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297 CFbsBitmap* bitmap = iStripeItems[i]->iBitmap; |
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298 CFbsBitmap* mask = iStripeItems[i]->iMask; |
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299 |
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300 TRect drawRect( point, KIconSize ); |
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301 if( iDrawHighlight && drawRect.Contains( iStylusPosition )) |
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302 { |
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303 TRect innerRect( drawRect ); |
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304 innerRect.Shrink( 5, 5 ); |
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305 |
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306 MAknsSkinInstance* skin( AknsUtils::SkinInstance() ); |
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307 AknsDrawUtils::DrawFrame( skin, gc, drawRect, innerRect, |
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308 KAknsIIDQsnFrHomePressed, KAknsIIDDefault ); |
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309 } |
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310 if( iViewPort.Contains( drawRect.iBr )|| |
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311 iViewPort.Contains( drawRect.iTl )) |
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312 { |
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313 gc.BitBltMasked( point, bitmap, bitmapRect, mask, EFalse); |
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314 } |
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315 point.iX += KIconSize.iWidth + KItemPadding; |
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316 } |
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317 } |
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318 |
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319 // --------------------------------------------------------------------------- |
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320 // ViewPositionChanged |
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321 // --------------------------------------------------------------------------- |
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322 // |
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323 void CCarouselWidget::ViewPositionChanged( |
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324 const TPoint& aNewPosition, TBool aDrawNow, TUint /*aFlags*/ ) |
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325 { |
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326 iCurrentPosition = aNewPosition; |
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327 iViewPosition.iX = aNewPosition.iX - iViewPort.Width()/2; |
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328 if( aDrawNow ) |
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329 { |
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330 DrawNow( iViewPort ); |
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331 } |
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332 } |
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333 |
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334 // --------------------------------------------------------------------------- |
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335 // PhysicEmulationEnded |
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336 // --------------------------------------------------------------------------- |
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337 // |
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338 void CCarouselWidget::PhysicEmulationEnded() |
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339 { |
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340 } |
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341 |
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342 // --------------------------------------------------------------------------- |
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343 // ViewPosition |
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344 // --------------------------------------------------------------------------- |
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345 // |
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346 TPoint CCarouselWidget::ViewPosition() const |
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347 { |
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348 return iCurrentPosition; |
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349 } |
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350 |
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351 // --------------------------------------------------------------------------- |
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352 // InitPhysicEngineL |
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353 // --------------------------------------------------------------------------- |
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354 // |
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355 void CCarouselWidget::InitPhysicEngineL() |
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356 { |
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357 // Init physic engine |
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358 if ( !iPhysics && CAknPhysics::FeatureEnabled() ) |
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359 { |
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360 iPhysics = CAknPhysics::NewL( *this, this ); |
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361 } |
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362 if( !iPhysics ) |
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363 { |
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364 return; |
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365 } |
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366 TSize viewPortSize = iViewPort.Size(); |
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367 TInt totalWidth( iStripeItems.Count() * (KIconSize.iWidth + KItemPadding )); |
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368 TSize totalSize( totalWidth, viewPortSize.iHeight ); |
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369 iPhysics->InitPhysicsL( totalSize, viewPortSize, ETrue ); |
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370 iCurrentPosition = TPoint( viewPortSize.iWidth / 2, viewPortSize.iHeight / 2 ); |
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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 // --------------------------------------------------------------------------- |
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376 // |
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377 TInt CCarouselWidget::ItemIndex( TPoint& aPoint ) |
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378 { |
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379 TPoint itemStartPoint( iViewPort.iTl ); |
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380 itemStartPoint.iX -= iViewPosition.iX; |
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381 |
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382 TRect dropRect( itemStartPoint, KIconSize ); |
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383 dropRect.Resize( KItemPadding, 0 ); |
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384 TInt index( 0 ); |
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385 do |
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386 { |
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387 if( dropRect.Contains( aPoint )) |
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388 { |
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389 return index; |
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390 } |
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391 dropRect.Move( KIconSize.iWidth+KItemPadding, 0); |
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392 index++; |
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393 } |
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394 while( index < iStripeItems.Count() ); |
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395 return KErrNotFound; |
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396 } |
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397 |
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398 // ----------------------------------------------------------------------------- |
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399 // Launches the item, which is in aPosition |
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400 // ----------------------------------------------------------------------------- |
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401 // |
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402 void CCarouselWidget::LaunchItemL( TPoint& aPosition ) |
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403 { |
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404 TInt index = ItemIndex( aPosition ); |
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405 // carousel plugin expects indexes to start from 1 |
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406 index++; |
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407 TInt len( KLaunchByIndex().Length()+3 ); |
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408 TBuf<17> event; |
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409 event.Append( KLaunchByIndex ); |
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410 event.AppendNum( index ); |
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411 event.Append( _L(")")); |
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412 iEventHandler->HandleEventL( event, _L8("Appstripe")); |
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413 } |
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414 |
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415 // ----------------------------------------------------------------------------- |
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416 // C++ default constructor |
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417 // ----------------------------------------------------------------------------- |
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418 // |
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419 CCarouselWidget::CCarouselWidget() |
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420 { |
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421 } |
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422 |
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423 // ============================ PUBLIC FUNCTIONS =============================== |
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424 const TImplementationProxy KImplementationTable[] = |
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425 { |
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426 #ifdef __EABI__ |
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427 IMPLEMENTATION_PROXY_ENTRY( 0xEabba433, CCarouselWidget::NewL ) |
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428 #else |
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429 { { 0xEabba433 }, CCarouselWidget::NewL } |
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430 #endif |
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431 }; |
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432 |
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433 // ----------------------------------------------------------------------------- |
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434 // Returns the list of implementations provided by the plugin |
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435 // ----------------------------------------------------------------------------- |
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436 // |
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437 EXPORT_C const TImplementationProxy* ImplementationGroupProxy( |
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438 TInt& aTableCount ) |
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439 { |
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440 aTableCount = sizeof( KImplementationTable ) / sizeof( TImplementationProxy ); |
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441 return KImplementationTable; |
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442 } |
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443 |