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1 /* |
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2 * Copyright (c) 2007 Nokia Corporation and/or its subsidiary(-ies). |
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3 * All rights reserved. |
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4 * This component and the accompanying materials are made available |
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5 * under the terms of "Eclipse Public License v1.0" |
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6 * which accompanies this distribution, and is available |
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7 * at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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8 * |
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9 * Initial Contributors: |
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10 * Nokia Corporation - initial contribution. |
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11 * |
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12 * Contributors: |
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13 * |
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14 * Description: Implementation of the IAlfAttributeOwner interface |
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15 * for AlfElement. |
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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 <alf/alfexceptions.h> |
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21 #include "alf/alfattribute.h" |
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22 #include "alf/alfattributecontainer.h" |
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23 #include "alf/ialfvisualtemplate.h" |
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24 #include <alf/alfwidgetcontrol.h> |
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25 #include "alf/ialfattributesetter.h" |
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26 #include "alf/alfcommonvisualattributesetter.h" |
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27 #include "alf/alfelement.h" |
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28 #include <osn/ustring.h> |
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29 #include "alf/attrproperty.h" |
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30 #include <alf/alfwidgetcommand.h> |
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31 |
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32 |
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33 #include "alfelementattributeownerimpl.h" |
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34 |
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35 using namespace duiuimodel; |
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36 |
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37 namespace Alf |
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38 { |
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39 |
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40 // --------------------------------------------------------------------------- |
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41 // Constructor. |
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42 // --------------------------------------------------------------------------- |
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43 // |
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44 AlfElementAttributeOwnerImpl::AlfElementAttributeOwnerImpl( |
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45 AlfElement& aElement, CAlfWidgetControl& aControl) : |
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46 mElement(aElement), mControl(aControl) |
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47 { |
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48 mAttributeList.setAutoDelete(true); |
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49 } |
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50 |
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51 // --------------------------------------------------------------------------- |
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52 // Destructor. |
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53 // --------------------------------------------------------------------------- |
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54 // |
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55 AlfElementAttributeOwnerImpl::~AlfElementAttributeOwnerImpl() |
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56 { |
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57 mAttributeList.clear(); |
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58 } |
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59 |
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60 // --------------------------------------------------------------------------- |
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61 // From class IAlfInterfaceBase. |
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62 // Getter for interfaces provided by the element. |
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63 // --------------------------------------------------------------------------- |
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64 // |
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65 IAlfInterfaceBase* AlfElementAttributeOwnerImpl::makeInterface( |
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66 const IfId& aType) |
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67 { |
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68 UString param(aType.mImplementationId); |
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69 if (param == IAlfAttributeOwner::type().mImplementationId) |
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70 { |
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71 return static_cast<IAlfAttributeOwner*>(this); |
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72 } |
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73 return 0; |
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74 } |
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75 |
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76 // --------------------------------------------------------------------------- |
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77 // Get the number of available attributes. |
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78 // From class IAlfAttributeOwner. |
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79 // --------------------------------------------------------------------------- |
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80 // |
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81 int AlfElementAttributeOwnerImpl::attributeCount() const |
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82 { |
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83 return mAttributeList.count(); |
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84 } |
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85 |
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86 // --------------------------------------------------------------------------- |
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87 // Gets the attribute with the given name. |
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88 // From class IAlfAttributeOwner. |
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89 // --------------------------------------------------------------------------- |
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90 // |
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91 const AlfAttribute* AlfElementAttributeOwnerImpl::getAttribute( |
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92 const UString& aAttribName) const |
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93 { |
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94 AlfAttribute* attribute = 0; |
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95 for (int i = 0; i < mAttributeList.count(); i++) |
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96 { |
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97 if (!strcmp(aAttribName.getUtf8(), mAttributeList[i]->name())) |
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98 { |
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99 attribute = mAttributeList[i]; |
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100 break; |
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101 } |
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102 } |
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103 return attribute; |
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104 } |
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105 |
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106 // --------------------------------------------------------------------------- |
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107 // Set a value of an attribute. |
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108 // From class IAlfAttributeOwner. |
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109 // --------------------------------------------------------------------------- |
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110 // |
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111 bool AlfElementAttributeOwnerImpl::setAttribute(const AlfAttribute& aAttribute) |
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112 { |
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113 // The attribute must have at least one value set. |
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114 if (!aAttribute.getTargetValueCount()) |
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115 { |
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116 ALF_THROW( |
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117 AlfAttributeException, EInvalidAttribute, "AlfElementAttributeOwnerImpl") |
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118 } |
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119 |
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120 if (!canHandleAttribute(aAttribute.name())) |
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121 { |
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122 return false; |
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123 } |
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124 |
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125 // Check whether the attribute exists already. |
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126 int i = 0; |
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127 for (i = 0; i < mAttributeList.count() ; i++) |
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128 { |
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129 if (!strcmp(aAttribute.name(), mAttributeList[i]->name())) |
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130 { |
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131 // Attribute exists already, modify the contents. |
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132 *mAttributeList[i] = aAttribute; |
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133 handleAttribute(*mAttributeList[i]); |
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134 return true; |
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135 } |
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136 } |
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137 |
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138 // Attribute with the given name does not exist, |
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139 // clone the given attribute and insert it in the list. |
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140 mAttributeList.resize(mAttributeList.count() + 1); |
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141 // Insert cannot fail because already resized. |
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142 mAttributeList.insert(mAttributeList.count(), |
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143 const_cast<AlfAttribute&>(aAttribute).clone()); |
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144 |
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145 handleAttribute(*mAttributeList[i]); |
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146 return true; |
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147 } |
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148 |
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149 // --------------------------------------------------------------------------- |
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150 // Set a value of an attribute. |
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151 // From class IAlfAttributeOwner. |
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152 // --------------------------------------------------------------------------- |
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153 // |
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154 bool AlfElementAttributeOwnerImpl::setAttribute( |
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155 const UString& aAttribName, AlfAttributeValueType* aValue) |
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156 { |
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157 if (!aValue) |
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158 { |
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159 ALF_THROW( |
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160 AlfAttributeException, EInvalidAttribute, "AlfElementAttributeOwnerImpl") |
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161 } |
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162 |
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163 // Create a new attribute. |
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164 auto_ptr<AlfAttribute> attribute( |
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165 new (EMM) AlfAttribute(aAttribName.getUtf8(), AlfAttribute::EStatic)); |
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166 attribute->addTargetValue(aValue); |
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167 |
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168 return setAttribute(*attribute.get()); |
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169 } |
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170 // --------------------------------------------------------------------------- |
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171 // Set a value of an attribute. |
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172 // From class IAlfAttributeOwner. |
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173 // --------------------------------------------------------------------------- |
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174 // |
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175 bool AlfElementAttributeOwnerImpl::setAttribute( const UString& aTargetId , |
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176 AlfAttribute& aAttribute ) |
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177 { |
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178 bool ret(false); |
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179 |
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180 // The attribute must have at least one value set. |
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181 if (!aAttribute.getTargetValueCount()) |
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182 { |
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183 ALF_THROW( |
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184 AlfAttributeException, EInvalidAttribute, "AlfElementAttributeOwnerImpl") |
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185 } |
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186 |
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187 //check targetId |
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188 if (!aTargetId.isEmpty() |
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189 && !aTargetId.compare(mElement.name()) ) |
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190 { |
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191 ret = setAttribute(aAttribute); |
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192 } |
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193 |
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194 return ret; |
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195 } |
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196 |
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197 |
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198 // --------------------------------------------------------------------------- |
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199 // Set a value of an attribute. |
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200 // From class IAlfAttributeOwner. |
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201 // --------------------------------------------------------------------------- |
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202 // |
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203 bool AlfElementAttributeOwnerImpl::setAttribute( const UString& aTargetId, |
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204 const UString& aAttribName, |
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205 AlfAttributeValueType* aValue ) |
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206 { |
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207 bool ret(false); |
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208 |
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209 if (!aValue) |
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210 { |
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211 ALF_THROW( |
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212 AlfAttributeException, EInvalidAttribute, "AlfElementAttributeOwnerImpl") |
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213 } |
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214 |
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215 if (!aTargetId.isEmpty()) |
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216 { |
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217 // Create a new static attribute. |
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218 auto_ptr<AlfAttribute> attribute( |
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219 new (EMM) AlfAttribute(aAttribName.getUtf8(), AlfAttribute::EStatic)); |
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220 attribute->addTargetValue(aValue); |
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221 |
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222 ret = setAttribute(*attribute.get()); |
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223 |
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224 } |
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225 |
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226 return ret; |
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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 // Gets the attribute with the given name. |
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232 // From class IAlfAttributeOwner. |
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233 // --------------------------------------------------------------------------- |
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234 // |
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235 const AlfAttribute* AlfElementAttributeOwnerImpl::getAttribute( const UString& aTargetId , |
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236 const UString& aAttribName ) const |
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237 { |
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238 const AlfAttribute* attr(0); |
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239 |
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240 //check targetId |
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241 if (!aTargetId.isEmpty() |
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242 && !aTargetId.compare(mElement.name())) |
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243 { |
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244 attr = getAttribute(aAttribName); |
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245 } |
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246 |
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247 return attr; |
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248 } |
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249 |
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250 // --------------------------------------------------------------------------- |
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251 // Sets the attributes from container |
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252 // From class IAlfAttributeOwner. |
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253 // --------------------------------------------------------------------------- |
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254 // |
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255 bool AlfElementAttributeOwnerImpl::setAttributeContainer( AlfAttributeContainer& aAttributeContainer ) |
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256 { |
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257 |
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258 const int attributeCount = aAttributeContainer.attributeCount(); |
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259 int numAttributesHandled = 0; |
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260 |
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261 for (int i = 0; i < attributeCount ; i++) |
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262 { |
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263 AlfAttribute& attribute = aAttributeContainer.getAttribute(i); |
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264 if (!strcmp(attribute.name(), duiuimodel::tactileattributes::KEventInput)) |
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265 { |
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266 |
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267 // Look for feedback type attribute. |
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268 try |
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269 { |
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270 AlfAttribute& feedBackType = |
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271 aAttributeContainer.getAttributeByName(duiuimodel::tactileattributes::KFeedbackType); |
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272 handleTactileAttribute(attribute,feedBackType); |
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273 numAttributesHandled += 2; |
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274 } |
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275 catch(AlfDataException& exception) |
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276 { |
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277 // attribute not found,so return false |
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278 return false; |
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279 } |
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280 } |
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281 |
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282 else if(setAttribute(attribute)) |
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283 { |
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284 numAttributesHandled++; |
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285 } |
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286 } |
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287 |
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288 |
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289 return (numAttributesHandled == attributeCount); |
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290 } |
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291 |
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292 // --------------------------------------------------------------------------- |
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293 // Handles the Tactile Attribute. |
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294 // --------------------------------------------------------------------------- |
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295 // |
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296 void AlfElementAttributeOwnerImpl::handleTactileAttribute( |
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297 AlfAttribute& aAttributeEvent,AlfAttribute& aAttributeFeedback) |
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298 { |
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299 IAlfVisualTemplate* visualTemplate = mElement.getVisualTemplate(); |
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300 |
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301 // Find the root layout |
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302 CAlfVisual* main = mElement.findVisual(0);//needs to be changed because in some cases id may be |
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303 // set by the user |
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304 |
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305 if(visualTemplate ) |
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306 { |
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307 AlfAttribute* attrEvent = NULL; |
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308 AlfAttribute* attrFeedback = NULL; |
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309 |
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310 int setterCount = visualTemplate->numAttributeSetters(); |
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311 bool found(false); |
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312 for (int j = 0; j < setterCount ; j++) |
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313 { |
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314 AlfAttributeContainer& container = visualTemplate->attributeContainer(j); |
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315 try |
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316 { |
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317 //find the attribute in each container until it is found |
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318 attrEvent = &(container.getAttributeByName(duiuimodel::tactileattributes::KEventInput)); |
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319 attrFeedback = &(container.getAttributeByName(duiuimodel::tactileattributes::KFeedbackType)); |
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320 } |
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321 catch(AlfDataException& exception) |
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322 { |
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323 // attribute not found,so continue |
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324 continue; |
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325 } |
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326 //attribute found in one of the existing containers of the visual template, update it |
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327 *attrEvent = aAttributeEvent; |
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328 *attrFeedback = aAttributeFeedback; |
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329 found = true; |
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330 IAlfAttributeSetter& setter = visualTemplate->attributeSetter(j); |
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331 if(main) |
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332 setter.setAttributeValue(*main,&container,0); |
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333 break; |
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334 } |
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335 // attribute not found in any of the containers, so create one attribute container and one |
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336 // attribute setter and add both to the visual template |
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337 if (!found) |
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338 { |
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339 auto_ptr<AlfAttributeContainer> container( |
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340 new (EMM) AlfAttributeContainer()); |
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341 |
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342 auto_ptr<AlfCommonVisualAttributeSetter> setter( |
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343 new (EMM) AlfCommonVisualAttributeSetter()); |
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344 |
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345 AlfAttribute* attribe =aAttributeEvent.clone(); |
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346 AlfAttribute* attribf =aAttributeFeedback.clone(); |
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347 |
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348 container.get()->addAttribute(attribe); |
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349 container.get()->addAttribute(attribf); |
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350 if(main) |
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351 setter.get()->setAttributeValue(*main, container.get(), 0); |
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352 |
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353 visualTemplate->addAttributeSetter(setter.release(), |
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354 container.release()); |
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355 } |
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356 } |
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357 } |
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358 |
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359 // --------------------------------------------------------------------------- |
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360 // Sets the attributes from container using targetId |
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361 // From class IAlfAttributeOwner. |
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362 // --------------------------------------------------------------------------- |
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363 // |
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364 bool AlfElementAttributeOwnerImpl::setAttributeContainer( const UString& aTargetId , |
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365 AlfAttributeContainer& aAttributeContainer ) |
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366 { |
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367 |
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368 |
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369 const int attributeCount = aAttributeContainer.attributeCount(); |
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370 int numAttributesHandled = 0; |
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371 |
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372 for (int i = 0; i < attributeCount ; i++) |
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373 { |
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374 AlfAttribute& attribute = aAttributeContainer.getAttribute(i); |
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375 if (!strcmp(attribute.name(), duiuimodel::tactileattributes::KEventInput)) |
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376 { |
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377 // Look for feedback type attribute. |
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378 |
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379 // Look for feedback type attribute. |
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380 try |
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381 { |
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382 AlfAttribute& feedBackType = |
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383 aAttributeContainer.getAttributeByName(duiuimodel::tactileattributes::KFeedbackType); |
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384 handleTactileAttribute(attribute,feedBackType); |
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385 numAttributesHandled += 2; |
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386 } |
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387 catch(AlfDataException& exception) |
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388 { |
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389 // attribute not found,so return false |
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390 return false; |
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391 } |
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392 } |
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393 else if(setAttribute(aTargetId,attribute)) |
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394 { |
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395 numAttributesHandled++; |
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396 } |
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397 } |
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398 |
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399 return (numAttributesHandled == attributeCount); |
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400 |
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401 } |
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402 |
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403 // --------------------------------------------------------------------------- |
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404 // Handles the attribute, sets proper values. |
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405 // --------------------------------------------------------------------------- |
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406 // |
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407 void AlfElementAttributeOwnerImpl::handleAttribute(AlfAttribute& aAttribute) |
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408 { |
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409 const char* attrName = aAttribute.name(); |
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410 |
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411 if (!strcmp(attrName, commonvisualattributes::KOpacity)) |
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412 { |
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413 handleOpacityAttribute(aAttribute); |
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414 } |
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415 else if(!strcmp(attrName, layoutattributes::KPositionX) || |
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416 !strcmp(attrName, layoutattributes::KPositionY)) |
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417 { |
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418 handlePositionAttribute(aAttribute); |
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419 } |
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420 else if(!strcmp(attrName, layoutattributes::KWidth) || |
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421 !strcmp(attrName, layoutattributes::KHeight)) |
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422 { |
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423 handleSizeAttribute(aAttribute); |
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424 } |
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425 else if(!strcmp(attrName, layoutattributes::KMaxWidth) || |
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426 !strcmp(attrName, layoutattributes::KMaxHeight)) |
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427 { |
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428 handleMaxSizeAttribute(aAttribute); |
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429 } |
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430 else if(!strcmp(attrName, layoutattributes::KMinWidth) || |
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431 !strcmp(attrName, layoutattributes::KMinHeight)) |
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432 { |
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433 handleMinSizeAttribute(aAttribute); |
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434 } |
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435 } |
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436 |
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437 // --------------------------------------------------------------------------- |
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438 // Can attribute be handled with this widget. |
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439 // --------------------------------------------------------------------------- |
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440 // |
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441 bool AlfElementAttributeOwnerImpl::canHandleAttribute( |
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442 const char* aAttributeName) |
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443 { |
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444 bool canHandle(false); |
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445 if (!strcmp(aAttributeName, commonvisualattributes::KOpacity) || |
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446 !strcmp(aAttributeName, layoutattributes::KPositionX) || |
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447 !strcmp(aAttributeName, layoutattributes::KPositionY) || |
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448 !strcmp(aAttributeName, layoutattributes::KWidth) || |
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449 !strcmp(aAttributeName, layoutattributes::KHeight) || |
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450 !strcmp(aAttributeName, layoutattributes::KMaxWidth) || |
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451 !strcmp(aAttributeName, layoutattributes::KMaxHeight) || |
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452 !strcmp(aAttributeName, layoutattributes::KMinWidth) || |
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453 !strcmp(aAttributeName, layoutattributes::KMinHeight)) |
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454 { |
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455 canHandle = true; |
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456 } |
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457 return canHandle; |
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458 } |
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459 |
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460 // --------------------------------------------------------------------------- |
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461 // Handles the Opacity Attribute. |
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462 // --------------------------------------------------------------------------- |
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463 // |
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464 void AlfElementAttributeOwnerImpl::handleOpacityAttribute( |
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465 AlfAttribute& aAttribute) |
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466 { |
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467 const char* attrName = aAttribute.name(); |
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468 |
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469 IAlfVisualTemplate* visualTemplate = mElement.getVisualTemplate(); |
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470 |
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471 // Find the root layout |
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472 CAlfVisual* main = mElement.findVisual(0); |
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473 |
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474 if(visualTemplate && main) |
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475 { |
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476 int setterCount = visualTemplate->numAttributeSetters(); |
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477 bool found(false); |
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478 for (int j = 0; j < setterCount && main; j++) |
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479 { |
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480 AlfAttributeContainer& container = visualTemplate->attributeContainer(j); |
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481 AlfAttribute* attr = NULL; |
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482 try |
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483 { |
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484 //find the attribute in each container until it is found |
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485 attr = &(container.getAttributeByName(attrName)); |
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486 } |
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487 catch(AlfDataException& exception) |
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488 { |
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489 // attribute not found,so continue |
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490 continue; |
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491 } |
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492 //attribute found in one of the existing containers of the visual template, update it |
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493 *attr = aAttribute; |
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494 found = true; |
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495 IAlfAttributeSetter& setter = visualTemplate->attributeSetter(j); |
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496 setter.setAttributeValue(*main,&container,0); |
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497 break; |
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498 } |
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499 // attribute not found in any of the containers, so create one attribute container and one |
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500 // attribute setter and add both to the visual template |
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501 if (!found) |
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502 { |
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503 auto_ptr<AlfAttributeContainer> container( |
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504 new (EMM) AlfAttributeContainer()); |
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505 auto_ptr<AlfCommonVisualAttributeSetter> setter( |
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506 new (EMM) AlfCommonVisualAttributeSetter()); |
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507 AlfAttribute* attribute =aAttribute.clone(); |
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508 container.get()->addAttribute(attribute); |
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509 |
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510 setter.get()->setAttributeValue(*main, container.get(), 0); |
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511 visualTemplate->addAttributeSetter(setter.release(), |
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512 container.release()); |
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513 } |
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514 } |
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515 } |
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516 |
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517 // --------------------------------------------------------------------------- |
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518 // Handles the Position Attribute |
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519 // --------------------------------------------------------------------------- |
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520 // |
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521 void AlfElementAttributeOwnerImpl::handlePositionAttribute(AlfAttribute& aAttribute) |
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522 { |
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523 const char* attrName = aAttribute.name(); |
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524 const char* attrPair = layoutattributes::KPositionX; |
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525 bool isPositionXAttr = false; |
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526 if(!strcmp(attrName, layoutattributes::KPositionX)) |
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527 { |
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528 attrPair = layoutattributes::KPositionY; |
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529 isPositionXAttr = true; |
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530 } |
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531 if (handleAttributePairs(aAttribute, attrPair)) |
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532 { |
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533 CAlfVisual* main = mElement.findVisual(0); |
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534 if (main) |
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535 { |
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536 bool needsRelayouting = false; |
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537 TAlfRealPoint pos(main->Pos().Target()); |
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538 |
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539 //for optimizing relayouting, which is expensive. Check, whether we need to do it. |
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540 if (isPositionXAttr) |
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541 { |
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542 //check against visual x position |
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543 needsRelayouting = (pos.iX != aAttribute.realValue()); |
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544 } |
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545 else |
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546 { |
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547 needsRelayouting = (pos.iY != aAttribute.realValue()); |
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548 } |
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549 |
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550 if (needsRelayouting) |
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551 { |
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552 main->UpdateChildrenLayout(); |
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553 mControl.updateParentLayout(); |
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554 } |
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555 } |
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556 } |
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557 } |
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558 |
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559 // --------------------------------------------------------------------------- |
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560 // Handles the Size Attribute. |
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561 // --------------------------------------------------------------------------- |
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562 // |
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563 void AlfElementAttributeOwnerImpl::handleSizeAttribute(AlfAttribute& aAttribute) |
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564 { |
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565 const char* attrName = aAttribute.name(); |
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566 const char* attrPair = layoutattributes::KWidth; |
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567 bool isWidthAttr = false; |
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568 |
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569 if(!strcmp(attrName, layoutattributes::KWidth)) |
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570 { |
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571 attrPair = layoutattributes::KHeight; |
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572 isWidthAttr = true; |
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573 } |
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574 if (handleAttributePairs(aAttribute, attrPair)) |
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575 { |
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576 CAlfVisual* main = mElement.findVisual(0); |
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577 if (main) |
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578 { |
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579 bool needsRelayouting = false; |
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580 TAlfRealPoint size(main->Size().Target()); |
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581 |
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582 //for optimizing relayouting, which is expensive. Check, whether we need to do it. |
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583 if (isWidthAttr) |
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584 { |
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585 needsRelayouting = (size.iX != aAttribute.realValue()); |
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586 } |
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587 else |
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588 { |
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589 needsRelayouting = (size.iY != aAttribute.realValue()); |
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590 } |
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591 |
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592 if (needsRelayouting) |
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593 { |
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594 main->UpdateChildrenLayout(); |
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595 mControl.updateParentLayout(); |
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596 } |
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597 } |
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598 } |
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599 } |
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600 |
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601 // --------------------------------------------------------------------------- |
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602 // Handles the Max Size Attribute. |
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603 // --------------------------------------------------------------------------- |
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604 // |
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605 void AlfElementAttributeOwnerImpl::handleMaxSizeAttribute(AlfAttribute& aAttribute) |
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606 { |
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607 const char* attrName = aAttribute.name(); |
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608 const char* attrPair = layoutattributes::KMaxWidth; |
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609 if(!strcmp(attrName, layoutattributes::KMaxWidth)) |
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610 { |
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611 attrPair = layoutattributes::KMaxHeight; |
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612 } |
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613 handleAttributePairs(aAttribute, attrPair); |
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614 } |
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615 |
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616 // --------------------------------------------------------------------------- |
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617 // Handles the Min Size Attribute. |
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618 // --------------------------------------------------------------------------- |
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619 // |
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620 void AlfElementAttributeOwnerImpl::handleMinSizeAttribute(AlfAttribute& aAttribute) |
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621 { |
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622 const char* attrName = aAttribute.name(); |
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623 const char* attrPair = layoutattributes::KMinWidth; |
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624 if(!strcmp(attrName, layoutattributes::KMinWidth)) |
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625 { |
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626 attrPair = layoutattributes::KMinHeight; |
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627 } |
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628 handleAttributePairs(aAttribute, attrPair); |
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629 } |
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630 |
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631 // --------------------------------------------------------------------------- |
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632 // Handles setting of paired attributes: widget & height, xpos & ypos etc. |
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633 // --------------------------------------------------------------------------- |
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634 // |
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635 bool AlfElementAttributeOwnerImpl::handleAttributePairs(AlfAttribute& aAttribute, |
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636 const char* aAttributeNamePair) |
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637 { |
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638 const char* attrName = aAttribute.name(); |
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639 bool changed(false); |
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640 IAlfVisualTemplate* visualTemplate = mElement.getVisualTemplate(); |
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641 |
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642 // Find the root layout |
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643 CAlfVisual* main = mElement.findVisual(0); |
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644 if(visualTemplate && main) |
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645 { |
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646 int setterCount = visualTemplate->numAttributeSetters(); |
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647 bool found(false); |
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648 |
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649 //find the attribute in all the existing containers |
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650 for (int j = 0; j < setterCount; j++) |
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651 { |
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652 AlfAttributeContainer& container = visualTemplate->attributeContainer(j); |
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653 AlfAttribute* attri = NULL; |
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654 try |
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655 { |
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656 attri = &(container.getAttributeByName(attrName)); |
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657 } |
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658 catch(AlfDataException& exception) |
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659 { |
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660 // attribute not found in the container |
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661 // continue to find in other containers |
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662 continue; |
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663 } |
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664 // attribute found, update it |
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665 *attri = aAttribute; |
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666 found = true; |
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667 |
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668 //check, that attribute pair exists. |
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669 try |
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670 { |
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671 AlfAttribute& attr = |
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672 container.getAttributeByName(aAttributeNamePair); |
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673 } |
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674 catch(AlfDataException& exception) |
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675 { |
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676 //attribute pair not found in the same container, so break |
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677 break; |
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678 } |
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679 |
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680 // attribute pair found, so call setAttributeValue() |
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681 IAlfAttributeSetter& setter = visualTemplate->attributeSetter(j); |
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682 setter.setAttributeValue(*main, &container, 0); |
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683 changed = true; |
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684 break; |
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685 } |
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686 |
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687 // the attribute not found in any of the existing containers |
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688 if(!found) |
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689 { |
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690 bool foundAttrPair(false); |
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691 |
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692 // again try to find the attribute pair |
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693 // this is for the situation where the attribute already exists |
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694 for (int j = 0; j < setterCount; j++) |
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695 { |
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696 AlfAttributeContainer& container = visualTemplate->attributeContainer(j); |
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697 |
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698 try |
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699 { |
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700 AlfAttribute& attr = |
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701 container.getAttributeByName(aAttributeNamePair); |
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702 } |
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703 catch(AlfDataException& exception) |
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704 { |
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705 // attribute not found,so continue |
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706 continue; |
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707 } |
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708 // attribute pair found, so add the attribute to the same container |
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709 // and call setAttributeValue() |
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710 AlfAttribute* attribute = aAttribute.clone(); |
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711 container.addAttribute(attribute); |
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712 IAlfAttributeSetter& setter = visualTemplate->attributeSetter(j); |
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713 setter.setAttributeValue(*main, &container, 0); |
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714 changed = true; |
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715 foundAttrPair = true; |
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716 break; |
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717 } |
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718 |
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719 // counter-part also does not exist, so create a new container and a attribute setter, add |
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720 // the attribute to the container, and the container and attribute setter to the visual template |
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721 if(!foundAttrPair) |
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722 { |
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723 auto_ptr<AlfAttributeContainer> container( |
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724 new (EMM) AlfAttributeContainer()); |
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725 auto_ptr<AlfCommonVisualAttributeSetter> setter( |
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726 new (EMM) AlfCommonVisualAttributeSetter()); |
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727 AlfAttribute* attribute = aAttribute.clone(); |
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728 container.get()->addAttribute(attribute); |
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729 visualTemplate->addAttributeSetter(setter.get(), |
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730 container.get()); |
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731 container.release(); |
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732 setter.release(); |
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733 } |
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734 } |
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735 } |
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736 return changed; |
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737 } |
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738 |
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739 } // namespace Alf |