author | Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com> |
Fri, 08 May 2009 08:25:06 +0300 | |
changeset 1 | 7c90e6132015 |
parent 0 | dd21522fd290 |
child 5 | 10e98eab6f85 |
permissions | -rw-r--r-- |
0
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/* |
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* Copyright (c) 2006 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 the License "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: |
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* |
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*/ |
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|
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#include "config.h" |
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#include "Font.h" |
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#include "TextStyle.h" |
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#include "FontData.h" |
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#include "FontFallbackList.h" |
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#include "GraphicsContext.h" |
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#include "IntRect.h" |
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#include "WebCoreGraphicsContext.h" |
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#include <e32std.h> |
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#include <BITSTD.H> |
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#include <gdi.h> |
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#include "StaticObjectsContainer.h" |
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#include "PictographSymbian.h" |
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#include "ZoomFactor.h" |
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#include "PlatformFontCache.h" |
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namespace WebCore { |
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static void notSupported() { __ASSERT_ALWAYS( 0, User::Panic( _L("Font:"), 1 ) ); } |
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void Font::drawGlyphs(GraphicsContext* graphicsContext, const FontData* font, const GlyphBuffer& glyphBuffer, |
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int from, int numGlyphs, const FloatPoint& point) const |
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{ |
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notSupported(); |
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} |
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FloatRect Font::selectionRectForComplexText(const TextRun& run, const TextStyle& style, const IntPoint& point, int h, int from, int to) const |
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{ |
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float b = 0; |
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if (from>0) { |
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TextRun begin(run.characters(), from); |
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b = floatWidthForComplexText(begin, style); |
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} |
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TextRun end(run.characters() + from, to - from); |
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float w = floatWidthForComplexText(end, style); |
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FloatRect rect(b + point.x(), point.y(), w, h); |
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return rect; |
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} |
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void Font::drawComplexText(GraphicsContext* graphicsContext, const TextRun& run, const TextStyle& style, const FloatPoint& point, int from, int to) const |
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{ |
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PlatformFontCache* cache = StaticObjectsContainer::instance()->fontCache(); |
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CFont* font = cache->zoomedFont(m_fontDescription, cache->fontZoomFactor()); |
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// RenderBlock::layoutColumns create a 0 platform context to do a faked paint |
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// during layout - weird stuff :) |
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if (!graphicsContext->platformContext()) |
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return; |
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CFbsBitGc& bitgc = graphicsContext->platformContext()->gc(); |
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Color c = graphicsContext->fillColor(); |
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bitgc.SetPenColor( TRgb( c.red(), c.green(), c.blue(), c.alpha() ) ); |
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bitgc.UseFontNoDuplicate( static_cast<const CFbsBitGcFont*>(font) ); |
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TPoint startPos = point; |
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if (from) { |
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// the text run before the selection |
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TextRun leftRun(run.characters(), from); |
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// the selection start point |
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startPos.iX += floatWidthForComplexText(leftRun, style); |
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} |
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TPtrC str( (const TUint16*)(run.characters() + from), to - from); |
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TInt numSpaces(0); |
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TInt indexOfFirstNonRegularSpace(-1); |
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TInt strLength(str.Length()); |
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// a) search for nbsp and similar |
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// b) count the spaces for word spacing |
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for( TInt n = 0; n<strLength; ++n) { |
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if ( str[n] == ' ' ) { |
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numSpaces++; |
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} |
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else if( TChar(str[n]).IsSpace() ) { |
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if (indexOfFirstNonRegularSpace==-1) { |
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indexOfFirstNonRegularSpace = n; |
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} |
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numSpaces++; |
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if( m_wordSpacing==0 || style.padding()==0 ) { |
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break; |
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} |
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} |
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} |
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108 |
|
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109 |
// letter spacing |
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|
110 |
bitgc.SetCharJustification(m_letterSpacing*str.Length(),str.Length()); |
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|
111 |
// word spacing |
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|
112 |
bitgc.SetWordJustification(m_wordSpacing*numSpaces + style.padding(), numSpaces); |
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|
113 |
|
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114 |
// see if we need a temporary buffer |
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|
115 |
if( indexOfFirstNonRegularSpace > -1 || isSmallCaps() || style.rtl()){ |
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116 |
HBufC* text = 0; |
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117 |
text = str.Alloc(); |
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118 |
if (text){ |
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119 |
|
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120 |
TPtr newStr(text->Des()); |
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121 |
if (isSmallCaps()) { |
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122 |
// proper small caps implementation would use smaller font, but that get complicated |
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123 |
// just upper case for now |
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124 |
newStr.UpperCase(); |
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125 |
} |
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126 |
|
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127 |
// if we have non-regular spaces (nbsp, tab, etc.) we need to make a copy |
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128 |
// and replace them with regular spaces. otherwise they show up as boxes. |
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129 |
if (indexOfFirstNonRegularSpace > -1) { |
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130 |
for(; indexOfFirstNonRegularSpace<strLength; ++indexOfFirstNonRegularSpace ) { |
1
7c90e6132015
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131 |
// if ZERO WIDTH SPACE found do not replace it with regular space |
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132 |
if( TChar(newStr[indexOfFirstNonRegularSpace]).IsSpace() && |
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133 |
!(Font::treatAsZeroWidthSpace (newStr[indexOfFirstNonRegularSpace]))) { |
0
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newStr[indexOfFirstNonRegularSpace] = ' '; |
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135 |
} |
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136 |
} |
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137 |
} |
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138 |
|
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139 |
if (style.rtl()) { |
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140 |
TBidiText* bidiText = TBidiText::NewL( newStr, 1, TBidiText::ERightToLeft ); |
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141 |
bidiText->WrapText(xForm(width(run)), *font ); |
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142 |
bitgc.DrawText( bidiText->DisplayText(),xForm(startPos)); |
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143 |
delete bidiText; |
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144 |
} |
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145 |
else{ |
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146 |
bitgc.DrawText( newStr, xForm(startPos) ); |
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147 |
} |
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148 |
|
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149 |
if (graphicsContext && StaticObjectsContainer::instance()->pictograph()) |
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150 |
StaticObjectsContainer::instance()->pictograph()->DrawPictographsInText(graphicsContext->platformContext(), bitgc, *font, newStr, startPos ); |
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151 |
|
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152 |
delete text; |
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153 |
} |
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154 |
|
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155 |
}else { |
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156 |
bitgc.DrawText( str, xForm(startPos) ); |
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157 |
if (graphicsContext && StaticObjectsContainer::instance()->pictograph()) |
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158 |
StaticObjectsContainer::instance()->pictograph()->DrawPictographsInText(graphicsContext->platformContext(), bitgc, *font, str, startPos ); |
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159 |
} |
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160 |
|
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161 |
bitgc.DiscardFont(); |
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162 |
} |
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|
163 |
|
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164 |
inline float floatWidthForComplexTextSymbian(const Font* f, const TextRun& run, const TextStyle& style, int maxWidth, int& chars){ |
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const CFont& font( f->primaryFont()->platformData() ); |
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166 |
TPtrC str( (const TUint16*)(run.characters()), run.length()); |
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|
167 |
|
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168 |
TInt numSpaces(0); |
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169 |
TInt indexOfFirstNonRegularSpace(-1); |
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170 |
TInt strLength(str.Length()); |
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171 |
// count the spaces for word spacing |
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|
172 |
// a) search for nbsp and similar |
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173 |
// b) count the spaces for word spacing |
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|
174 |
for( TInt n = 0; n<strLength; ++n) |
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|
175 |
{ |
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|
176 |
if ( str[n] == ' ' ) |
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|
177 |
{ |
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178 |
numSpaces++; |
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179 |
} |
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180 |
else if( TChar(str[n]).IsSpace() ) |
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|
181 |
{ |
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182 |
if (indexOfFirstNonRegularSpace==-1) |
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|
183 |
{ |
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184 |
indexOfFirstNonRegularSpace = n; |
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|
185 |
} |
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|
186 |
numSpaces++; |
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|
187 |
if ( f->wordSpacing() == 0 || style.padding() == 0 ) |
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|
188 |
break; |
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|
189 |
} |
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|
190 |
} |
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|
191 |
|
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|
192 |
CFont::TMeasureTextInput input; |
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|
193 |
input.iCharJustExcess = str.Length() * f->letterSpacing(); |
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|
194 |
input.iCharJustNum = str.Length(); |
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|
195 |
input.iWordJustExcess = numSpaces * f->wordSpacing(); |
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|
196 |
input.iWordJustNum = numSpaces; |
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|
197 |
if (maxWidth>0) |
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|
198 |
input.iMaxAdvance = maxWidth; |
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|
199 |
CFont::TMeasureTextOutput output; |
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|
200 |
//input.iMaxAdvance = aMaxAdvance; |
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|
201 |
|
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|
202 |
// see if we need a temporary buffer |
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|
203 |
if( indexOfFirstNonRegularSpace > -1 || f->isSmallCaps() ){ |
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|
204 |
HBufC* text = str.Alloc(); |
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|
205 |
// don't bother to reverse order for right-to-left, assume the length will be the same |
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|
206 |
if (text){ |
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|
207 |
TPtr newStr(text->Des()); |
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|
208 |
if ( f->isSmallCaps() ) |
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|
209 |
{ |
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210 |
// proper small caps implementation would use smaller font, but that get complicated |
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|
211 |
// just upper case for now |
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|
212 |
newStr.UpperCase(); |
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|
213 |
} |
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|
214 |
// if we have non-regular spaces (nbsp, tab, etc.) we need to make a copy |
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Revision: 200911
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parents:
diff
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|
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// and replace them with regular spaces. otherwise they show up as boxes. |
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if (indexOfFirstNonRegularSpace > -1) |
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{ |
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for(; indexOfFirstNonRegularSpace<strLength; ++indexOfFirstNonRegularSpace ) |
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{ |
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if( TChar(newStr[indexOfFirstNonRegularSpace]).IsSpace() ) |
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{ |
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newStr[indexOfFirstNonRegularSpace] = ' '; |
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} |
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} |
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} |
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// FIXME: should use smallcap font, which has smaller font size than the current font |
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TInt w = font.MeasureText(*text,&input,&output); |
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delete text; |
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chars = output.iChars; |
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return w; |
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} |
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} |
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TInt w = font.MeasureText(str,&input,&output); |
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chars = output.iChars; |
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return w; |
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} |
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|
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float Font::floatWidthForComplexText(const TextRun& run, const TextStyle& style) const |
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{ |
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int chars; |
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return floatWidthForComplexTextSymbian(this, run, style, -1, chars); |
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} |
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|
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|
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int Font::offsetForPositionForComplexText(const TextRun& run, const TextStyle& style, int x, bool includePartialGlyphs) const |
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{ |
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int chars; |
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floatWidthForComplexTextSymbian(this, run, style, x, chars); |
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return chars; |
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} |
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|
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} |