author | Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> |
Thu, 17 Dec 2009 08:45:44 +0200 | |
changeset 0 | 4e91876724a2 |
child 13 | bcb43dc84c44 |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2008-2009 Nokia Corporation and/or its subsidiary(-ies). |
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* All rights reserved. |
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* This component and the accompanying materials are made available |
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* under the terms of "Eclipse Public License v1.0" |
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* which accompanies this distribution, and is available |
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* at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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* |
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* Initial Contributors: |
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* Nokia Corporation - initial contribution. |
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* |
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* Contributors: |
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* |
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* Description: Splits layout chain by visual |
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* |
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*/ |
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#include "glxlayoutsplitter.h" |
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#include <alf/alfvisual.h> |
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#include <mglxvisuallist.h> |
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#include <glxpanic.h> // Panic codes |
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// ----------------------------------------------------------------------------- |
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// Constructor |
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// ----------------------------------------------------------------------------- |
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EXPORT_C TGlxLayoutSplitter::TGlxLayoutSplitter() |
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: iDefaultLayout( NULL ), |
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iVisualList( NULL ) |
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{ |
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__DEBUG_ONLY( _iName = _L("TGlxLayoutSplitter") ); |
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} |
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|
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// ----------------------------------------------------------------------------- |
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// Destructor |
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// ----------------------------------------------------------------------------- |
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EXPORT_C TGlxLayoutSplitter::~TGlxLayoutSplitter() |
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{ |
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Reset(); |
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} |
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// ----------------------------------------------------------------------------- |
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// Tells the splitter what is the visual list object |
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// ----------------------------------------------------------------------------- |
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EXPORT_C void TGlxLayoutSplitter::SetVisualListL( |
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MGlxVisualList* aVisualList ) |
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{ |
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__ASSERT_DEBUG( |
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aVisualList, Panic( EGlxPanicNullVisualList ) ); |
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iVisualList = aVisualList; |
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iVisualList->AddObserverL( this ); |
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} |
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// ----------------------------------------------------------------------------- |
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// SetLayoutL |
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// ----------------------------------------------------------------------------- |
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EXPORT_C void TGlxLayoutSplitter::SetLayoutL( |
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MGlxLayout* aLayout, const CAlfVisual* aVisual ) |
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{ |
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// Call SetVisualListL first |
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__ASSERT_DEBUG( iVisualList, Panic( EGlxPanicNullVisualList ) ); |
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// to replace EGlxPanicNullCHuiVisual |
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//__ASSERT_DEBUG( aVisual && aLayout, Panic( EGlxPanicNullCAlfVisual ) ); |
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// search if there already is a layout for this visual |
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__DEBUG_ONLY( TLayout temp;temp.iVisual = aVisual; ); |
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__ASSERT_DEBUG( |
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iLayouts.Find( temp, TLayout::Match ) == KErrNotFound, |
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Panic( EGlxPanicAlreadyAdded ) ); |
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// create layout struct |
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TLayout newLayoutStruct; |
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newLayoutStruct.iLayout = aLayout; |
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newLayoutStruct.iVisual = aVisual; |
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// append to the array |
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iLayouts.AppendL( newLayoutStruct ); |
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} |
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// ----------------------------------------------------------------------------- |
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// Removes an existing layout |
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// ----------------------------------------------------------------------------- |
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EXPORT_C void TGlxLayoutSplitter::RemoveLayout( |
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const CAlfVisual* aVisual ) |
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{ |
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TInt index = LayoutIndex( aVisual ); |
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if( index != KErrNotFound ) |
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{ |
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iLayouts.Remove( index ); |
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} |
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// NOTE! it is ok to try to remove a layout from visual when there was none |
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} |
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// ----------------------------------------------------------------------------- |
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// Sets layout to be used when for visuals which don't have a specific layout |
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// ----------------------------------------------------------------------------- |
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EXPORT_C void TGlxLayoutSplitter::SetDefaultLayout( |
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MGlxLayout* aLayout ) |
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{ |
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iDefaultLayout = aLayout; |
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} |
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// ----------------------------------------------------------------------------- |
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105 |
// Reset |
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106 |
// Remove all layouts and remove association with visual list. |
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107 |
// ----------------------------------------------------------------------------- |
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108 |
EXPORT_C void TGlxLayoutSplitter::Reset() |
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109 |
{ |
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// Remove all layouts |
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iLayouts.Close(); |
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112 |
|
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113 |
if( iVisualList ) |
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114 |
{ |
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iVisualList->RemoveObserver( this ); |
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iVisualList = NULL; |
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117 |
} |
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118 |
} |
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119 |
|
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120 |
// ----------------------------------------------------------------------------- |
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121 |
// DoSetLayoutValues |
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122 |
// ----------------------------------------------------------------------------- |
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123 |
void TGlxLayoutSplitter::DoSetLayoutValues( |
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TGlxLayoutInfo& aInfo ) |
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125 |
{ |
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// Call SetVisualListL to avoid this assert |
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__ASSERT_DEBUG( iVisualList, Panic( EGlxPanicNullVisualList ) ); |
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128 |
|
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// Does a layout exist for the visual |
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// If yes, use the specific layout. If not, use default layout. |
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MGlxLayout* layout = Layout( &aInfo.Visual() ); |
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// if layout was found |
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if( layout ) |
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134 |
{ |
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// return its value |
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return layout->SetLayoutValues( aInfo ); |
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137 |
} |
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// otherwise return the default layout value |
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else if( iDefaultLayout ) |
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140 |
{ |
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141 |
return iDefaultLayout->SetLayoutValues( aInfo ); |
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142 |
} |
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143 |
// nothing to do, no layout for the visual nor default |
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144 |
} |
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145 |
|
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146 |
// ----------------------------------------------------------------------------- |
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147 |
// HandleVisualAddedL |
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148 |
// ----------------------------------------------------------------------------- |
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149 |
void TGlxLayoutSplitter::HandleVisualAddedL( |
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150 |
CAlfVisual* /*aVisual*/, TInt /*aIndex*/, MGlxVisualList* /*aList*/) |
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151 |
{ |
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152 |
// Do nothing |
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153 |
} |
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154 |
|
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155 |
// ----------------------------------------------------------------------------- |
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156 |
// HandleVisualRemoved |
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157 |
// Remove the layout associated with the visual, if any. |
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158 |
// ----------------------------------------------------------------------------- |
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159 |
void TGlxLayoutSplitter::HandleVisualRemoved( |
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const CAlfVisual* aVisual, MGlxVisualList* /*aList*/ ) |
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161 |
{ |
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162 |
// Try to find a layout struct with the provided visual, and remove |
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// it if found |
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164 |
TInt index = LayoutIndex( aVisual ); |
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165 |
if( index != KErrNotFound ) |
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166 |
{ |
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167 |
iLayouts.Remove( index ); |
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168 |
} |
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169 |
} |
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170 |
|
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171 |
// ----------------------------------------------------------------------------- |
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172 |
// HandleFocusChangedL |
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173 |
// ----------------------------------------------------------------------------- |
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174 |
void TGlxLayoutSplitter::HandleFocusChangedL( |
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175 |
TInt /*aFocusIndex*/, |
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176 |
TReal32 /*aItemsPerSecond*/, |
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177 |
MGlxVisualList* /*aList*/, |
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178 |
NGlxListDefs::TFocusChangeType /*aType*/ ) |
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179 |
{ |
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180 |
// Do nothing |
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181 |
} |
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182 |
|
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183 |
// ----------------------------------------------------------------------------- |
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184 |
// HandleSizeChanged |
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185 |
// ----------------------------------------------------------------------------- |
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186 |
void TGlxLayoutSplitter::HandleSizeChanged( |
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const TSize& /*aSize*/, MGlxVisualList* /*aList*/ ) |
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188 |
{ |
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// Do nothing |
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190 |
} |
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191 |
|
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192 |
// ----------------------------------------------------------------------------- |
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193 |
// Returns the layout associated with the aInIndex, or NULL if not found |
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194 |
// ----------------------------------------------------------------------------- |
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195 |
MGlxLayout* TGlxLayoutSplitter::Layout( |
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196 |
const CAlfVisual* aVisual ) const |
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197 |
{ |
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// Find the layout that is intended for this visual |
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199 |
TInt index = LayoutIndex( aVisual ); |
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200 |
if( index != KErrNotFound ) |
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201 |
{ |
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202 |
return iLayouts[ index ].iLayout; |
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203 |
} |
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204 |
return NULL; |
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205 |
} |
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206 |
|
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207 |
// ----------------------------------------------------------------------------- |
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208 |
// Returns layout struct index or KErrNotFound |
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209 |
// ----------------------------------------------------------------------------- |
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210 |
TInt TGlxLayoutSplitter::LayoutIndex( |
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const CAlfVisual* aVisual ) const |
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{ |
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// search if there already is a layout for this visual |
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TLayout temp; |
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temp.iVisual = aVisual; |
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return iLayouts.Find( temp, TLayout::Match ); |
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} |
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|
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// ----------------------------------------------------------------------------- |
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// TGlxLayoutSplitter::Match |
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// ----------------------------------------------------------------------------- |
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TBool TGlxLayoutSplitter::TLayout::Match( |
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const TLayout& aLhs, const TLayout& aRhs ) |
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{ |
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// return true if the visuals are same |
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return aLhs.iVisual == aRhs.iVisual; |
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} |
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