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1 /* |
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2 * Copyright (c) 2003 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: SVG Implementation source file |
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15 * |
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16 */ |
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17 |
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18 |
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19 #include "SvgStopElementImpl.h" |
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20 #include "SVGDocumentImpl.h" |
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21 #include "SVGGradientElementImpl.h" |
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22 #include "SVGIntCssValueImpl.h" |
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23 |
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24 _LIT(OFFSET, "offset"); |
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25 _LIT(STOPOPACITY, "stop-opacity"); |
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26 _LIT(INHERIT, "inherit"); |
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27 _LIT(STOPCOLOR, "stop-color"); |
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28 |
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29 // --------------------------------------------------------------------------- |
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30 // |
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31 // --------------------------------------------------------------------------- |
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32 CSvgStopElementImpl* CSvgStopElementImpl::NewL(const TUint8 aElemID, |
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33 CSvgDocumentImpl* aDoc ) |
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34 { |
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35 CSvgStopElementImpl *self = new (ELeave) CSvgStopElementImpl(aDoc); |
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36 CleanupStack::PushL(self); |
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37 self->ConstructL(aElemID); |
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38 CleanupStack::Pop(self); |
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39 return self; |
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40 } |
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41 |
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42 // --------------------------------------------------------------------------- |
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43 // |
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44 // --------------------------------------------------------------------------- |
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45 void CSvgStopElementImpl::ConstructL(const TUint8 aElemID) |
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46 { |
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47 CSvgElementImpl::InitializeL( aElemID ); |
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48 iSvgStyleProperties = new(ELeave) RPointerArray<CCssValue>(KCSS_MAX_ATTR); |
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49 User::LeaveIfError( iSvgStyleProperties->Append( NULL ) ); |
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50 iSvgStyleProperties->Remove( 0 ); |
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51 |
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52 |
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53 } |
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54 |
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55 // --------------------------------------------------------------------------- |
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56 // |
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57 // --------------------------------------------------------------------------- |
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58 CSvgStopElementImpl::CSvgStopElementImpl( CSvgDocumentImpl* aDoc ): |
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59 iOffset(-1),// This implies that offset value is yet to be initialized. |
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60 iStopOpacity(1), |
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61 iStopColor(0), |
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62 |
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63 iValidOffsetValue(ETrue) |
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64 { |
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65 SetOwnerDocument(aDoc); |
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66 } |
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67 |
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68 // --------------------------------------------------------------------------- |
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69 // |
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70 // --------------------------------------------------------------------------- |
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71 TInt CSvgStopElementImpl::GetAttributeFloat(const TInt aNameId, TFloatFixPt& aValue) |
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72 { |
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73 switch(aNameId) |
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74 { |
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75 case KAtrOffset: |
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76 aValue= iOffset; |
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77 break; |
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78 case KAtrStopOpacity: |
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79 aValue = iStopOpacity; |
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80 break; |
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81 default: |
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82 CSvgElementImpl::GetAttributeFloat(aNameId,aValue); |
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83 break; |
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84 } |
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85 |
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86 return 0; |
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87 |
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88 } |
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89 |
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90 // --------------------------------------------------------------------------- |
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91 // |
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92 // --------------------------------------------------------------------------- |
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93 TInt CSvgStopElementImpl::SetAttributeFloatL(const TInt aNameId,const TFloatFixPt aValue) |
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94 { |
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95 switch(aNameId) |
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96 { |
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97 case KAtrOffset: |
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98 iOffset= aValue; |
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99 |
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100 // Adjust the value of offset |
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101 if(((((CSvgElementImpl*)ParentNode())->ElemID()) == KSvgRadialGradientElement) || |
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102 ((((CSvgElementImpl*)ParentNode())->ElemID()) == KSvgLinearGradientElement)) |
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103 { |
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104 CSvgGradientElementImpl *parent = ((CSvgGradientElementImpl *)ParentNode()); |
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105 |
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106 if(parent) |
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107 { |
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108 parent->UpdateOffsetValues((CSvgStopElementImpl*)this); |
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109 } |
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110 } |
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111 |
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112 break; |
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113 case KAtrStopOpacity: |
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114 iStopOpacity= aValue; |
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115 break; |
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116 |
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117 default: |
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118 CSvgElementImpl::SetAttributeFloatL(aNameId,aValue); |
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119 break; |
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120 } |
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121 |
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122 return 0; |
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123 |
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124 } |
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125 |
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126 // --------------------------------------------------------------------------- |
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127 // |
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128 // --------------------------------------------------------------------------- |
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129 TInt CSvgStopElementImpl::GetAttributeIntL( const TInt aNameId, TInt32& aValue ) |
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130 { |
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131 switch(aNameId) |
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132 { |
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133 case KAtrStopColor: |
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134 aValue = iStopColor; |
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135 break; |
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136 default: |
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137 CSvgElementImpl::GetAttributeIntL( aNameId, aValue ); |
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138 break; |
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139 } |
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140 return 0; |
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141 } |
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142 |
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143 // --------------------------------------------------------------------------- |
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144 // |
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145 // --------------------------------------------------------------------------- |
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146 TInt CSvgStopElementImpl::SetAttributeIntL( const TInt aNameId, |
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147 const TInt32 aValue ) |
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148 { |
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149 switch(aNameId) |
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150 { |
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151 case KAtrStopColor: |
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152 { |
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153 iStopColor = (TUint32)aValue; |
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154 } |
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155 break; |
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156 default: |
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157 CSvgElementImpl::SetAttributeIntL( aNameId, |
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158 aValue ); |
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159 break; |
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160 } |
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161 return 0; |
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162 } |
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163 |
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164 TBool CSvgStopElementImpl::IsValidValue(const TDesC& aValue) |
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165 { |
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166 TBool lValidValue = ETrue; |
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167 // aValue can only contain these characters "-+.%0123456789", If it contains any thing |
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168 // other than this it should be treated as 0. |
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169 |
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170 _LIT(KValidChars,"-+.%0123456789"); |
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171 TBufC<14> lValidChars(KValidChars); |
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172 |
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173 TInt llength = aValue.Length(); |
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174 |
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175 for( int charpos = 0 ; charpos < llength; charpos++ ) |
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176 { |
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177 if( lValidChars.Locate(aValue[charpos]) == KErrNotFound ) |
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178 { |
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179 |
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180 lValidValue = EFalse; |
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181 break; |
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182 } |
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183 } |
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184 |
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185 return lValidValue; |
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186 } |
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187 |
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188 TBool CSvgStopElementImpl::IsValidElement() const |
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189 { |
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190 return iValidOffsetValue; |
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191 } |
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192 |
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193 // --------------------------------------------------------------------------- |
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194 // |
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195 // --------------------------------------------------------------------------- |
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196 TInt CSvgStopElementImpl::SetAttributeL(const TDesC &aName, const TDesC &aValue) |
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197 { |
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198 CSvgElementImpl::SetAttributeL(aName,aValue); |
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199 TFloatFixPt KZero(KFloatFixZero); |
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200 TFloatFixPt KOne( KFloatFixOne ); |
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201 |
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202 if(aName == OFFSET) |
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203 { |
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204 iValidOffsetValue = IsValidValue(aValue); |
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205 |
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206 if( iValidOffsetValue ) |
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207 { |
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208 iOffset=TFloatFixPt::ConvertString(aValue); |
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209 |
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210 if (aValue.Locate('%') != KErrNotFound) |
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211 { |
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212 iOffset = iOffset / TFloatFixPt(100); |
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213 } |
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214 |
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215 // Finally if the iOffset value is lesser than 0, it should be made to 0. |
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216 if( iOffset < KZero ) |
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217 { |
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218 iOffset = KZero ; |
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219 } |
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220 else if( iOffset > KOne ) |
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221 { |
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222 iOffset = KOne ; |
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223 } |
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224 } |
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225 else |
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226 { |
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227 // aValue contains invalid characters hence "0" is assigned to it. |
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228 // Any stop element with wrong offset value should not be considered while |
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229 // rendereing and the effect should be as if no stop-offset is declared. |
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230 iOffset = KZero; |
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231 } |
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232 |
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233 } |
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234 else if(aName == STOPOPACITY) |
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235 { |
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236 |
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237 if(aValue == INHERIT) |
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238 { |
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239 // inherit does not make any sense since the stop-opacity is |
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240 //specific to stop element only and a stop element can not have another stop element as |
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241 //its child. |
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242 iStopOpacity = KOne; |
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243 } |
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244 else |
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245 { |
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246 if( IsValidValue(aValue) ) |
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247 { |
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248 #ifdef SVG_FLOAT_BUILD |
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249 iStopOpacity = TFloatFixPt::ConvertString (aValue); |
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250 |
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251 if (!(iStopOpacity >= TFloatFixPt(0) && iStopOpacity <= TFloatFixPt(1))) |
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252 #else |
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253 if ( TFloatFixPt::ConvertString (aValue, iStopOpacity ) != KErrNone ) |
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254 #endif |
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255 { |
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256 iStopOpacity = KOne; |
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257 } |
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258 else |
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259 { |
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260 if (aValue.Locate('%') != KErrNotFound) |
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261 { |
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262 //if stop opacity was listed as a percentage |
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263 iStopOpacity = iStopOpacity / TFloatFixPt(100); |
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264 } |
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265 |
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266 if ( iStopOpacity < KZero ) |
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267 iStopOpacity = KZero; |
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268 else if ( iStopOpacity > KOne ) |
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269 iStopOpacity = KOne; |
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270 } |
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271 } |
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272 else |
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273 { |
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274 iStopOpacity = KOne; |
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275 } |
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276 } |
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277 } |
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278 else if (aName == STOPCOLOR) |
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279 { |
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280 TUint32 tempVal; |
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281 |
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282 TSvgColor tColor(KGfxColorNull); |
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283 if( tColor.GetStringL( aValue,tempVal) ) |
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284 { |
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285 |
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286 } |
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287 else |
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288 { |
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289 tempVal = 0; |
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290 } |
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291 iStopColor=tempVal; |
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292 } |
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293 |
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294 return 0; |
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295 |
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296 } |
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297 |
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298 // --------------------------------------------------------------------------- |
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299 // |
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300 // --------------------------------------------------------------------------- |
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301 CSvgStopElementImpl::~CSvgStopElementImpl() |
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302 { |
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303 if ( iSvgStyleProperties ) |
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304 { |
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305 iSvgStyleProperties->Close(); |
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306 delete iSvgStyleProperties; |
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307 iSvgStyleProperties = NULL; |
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308 } |
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309 } |
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310 |
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311 // --------------------------------------------------------------------------- |
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312 // |
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313 // --------------------------------------------------------------------------- |
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314 void CSvgStopElementImpl::SetStopColorL(TUint32 &aVal) |
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315 { |
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316 iStopColor= aVal; |
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317 } |
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318 |
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319 // --------------------------------------------------------------------------- |
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320 // |
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321 // --------------------------------------------------------------------------- |
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322 void CSvgStopElementImpl::Print( TBool aIsEncodeOn ) |
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323 { |
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324 if (!aIsEncodeOn) |
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325 { |
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326 #ifdef _DEBUG |
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327 RDebug::Printf("<stop stop-color=\"hmmm\" stop-opacity=\"%d\" offset=\"%d\" />", |
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328 /*iStopColor,*/ (int)iStopOpacity, (int)iOffset ); |
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329 #endif |
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330 } |
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331 } |
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332 |