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<h1>kwordwrap.cpp</h1><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">/* This file is part of the KDE libraries</span>
<a name="l00002"></a>00002 <span class="comment">   Copyright (C) 2001 David Faure &lt;david@mandrakesoft.com&gt;</span>
<a name="l00003"></a>00003 <span class="comment"></span>
<a name="l00004"></a>00004 <span class="comment">   This library is free software; you can redistribute it and/or</span>
<a name="l00005"></a>00005 <span class="comment">   modify it under the terms of the GNU Library General Public</span>
<a name="l00006"></a>00006 <span class="comment">   License version 2 as published by the Free Software Foundation.</span>
<a name="l00007"></a>00007 <span class="comment"></span>
<a name="l00008"></a>00008 <span class="comment">   This library is distributed in the hope that it will be useful,</span>
<a name="l00009"></a>00009 <span class="comment">   but WITHOUT ANY WARRANTY; without even the implied warranty of</span>
<a name="l00010"></a>00010 <span class="comment">   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU</span>
<a name="l00011"></a>00011 <span class="comment">   Library General Public License for more details.</span>
<a name="l00012"></a>00012 <span class="comment"></span>
<a name="l00013"></a>00013 <span class="comment">   You should have received a copy of the GNU Library General Public License</span>
<a name="l00014"></a>00014 <span class="comment">   along with this library; see the file COPYING.LIB.  If not, write to</span>
<a name="l00015"></a>00015 <span class="comment">   the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,</span>
<a name="l00016"></a>00016 <span class="comment">   Boston, MA 02110-1301, USA.</span>
<a name="l00017"></a>00017 <span class="comment">*/</span>
<a name="l00018"></a>00018 
<a name="l00019"></a>00019 <span class="preprocessor">#include "kwordwrap.h"</span>
<a name="l00020"></a>00020 <span class="preprocessor">#include &lt;kdebug.h&gt;</span>
<a name="l00021"></a>00021 <span class="preprocessor">#include &lt;kstringhandler.h&gt;</span>
<a name="l00022"></a>00022 <span class="preprocessor">#include &lt;qpainter.h&gt;</span>
<a name="l00023"></a>00023 
<a name="l00024"></a>00024 <span class="keyword">class </span>KWordWrapPrivate {
<a name="l00025"></a>00025 <span class="keyword">public</span>:
<a name="l00026"></a>00026   <a class="codeRef" doxygen="qt.tag:" href="qrect.html">QRect</a> m_constrainingRect;
<a name="l00027"></a>00027 };
<a name="l00028"></a>00028 
<a name="l00029"></a>00029 KWordWrap::KWordWrap(<span class="keyword">const</span> <a class="codeRef" doxygen="qt.tag:" href="qrect.html">QRect</a> &amp; r) {
<a name="l00030"></a>00030     d = <span class="keyword">new</span> KWordWrapPrivate;
<a name="l00031"></a>00031     d-&gt;m_constrainingRect = r;
<a name="l00032"></a>00032 }
<a name="l00033"></a>00033 
<a name="l00034"></a><a class="code" href="classKWordWrap.html#e0">00034</a> <a class="code" href="classKWordWrap.html">KWordWrap</a>* <a class="code" href="classKWordWrap.html#e0">KWordWrap::formatText</a>( <a class="codeRef" doxygen="qt.tag:" href="qfontmetrics.html">QFontMetrics</a> &amp;fm, <span class="keyword">const</span> <a class="codeRef" doxygen="qt.tag:" href="qrect.html">QRect</a> &amp; r, <span class="keywordtype">int</span> <span class="comment">/*flags*/</span>, <span class="keyword">const</span> <a class="codeRef" doxygen="qt.tag:" href="qstring.html">QString</a> &amp; str, <span class="keywordtype">int</span> len )
<a name="l00035"></a>00035 {
<a name="l00036"></a>00036     <a class="code" href="classKWordWrap.html">KWordWrap</a>* kw = <span class="keyword">new</span> <a class="code" href="classKWordWrap.html">KWordWrap</a>( r );
<a name="l00037"></a>00037     <span class="comment">// The wordwrap algorithm</span>
<a name="l00038"></a>00038     <span class="comment">// The variable names and the global shape of the algorithm are inspired</span>
<a name="l00039"></a>00039     <span class="comment">// from QTextFormatterBreakWords::format().</span>
<a name="l00040"></a>00040     <span class="comment">//kdDebug() &lt;&lt; "KWordWrap::formatText " &lt;&lt; str &lt;&lt; " r=" &lt;&lt; r.x() &lt;&lt; "," &lt;&lt; r.y() &lt;&lt; " " &lt;&lt; r.width() &lt;&lt; "x" &lt;&lt; r.height() &lt;&lt; endl;</span>
<a name="l00041"></a>00041     <span class="keywordtype">int</span> height = fm.<a class="codeRef" doxygen="qt.tag:" href="qfontmetrics.html#height">height</a>();
<a name="l00042"></a>00042     <span class="keywordflow">if</span> ( len == -1 )
<a name="l00043"></a>00043         kw-&gt;<a class="code" href="classKWordWrap.html#r3">m_text</a> = str;
<a name="l00044"></a>00044     <span class="keywordflow">else</span>
<a name="l00045"></a>00045         kw-&gt;<a class="code" href="classKWordWrap.html#r3">m_text</a> = str.<a class="codeRef" doxygen="qt.tag:" href="qstring.html#left">left</a>( len );
<a name="l00046"></a>00046     <span class="keywordflow">if</span> ( len == -1 )
<a name="l00047"></a>00047         len = str.<a class="codeRef" doxygen="qt.tag:" href="qstring.html#length">length</a>();
<a name="l00048"></a>00048     <span class="keywordtype">int</span> lastBreak = -1;
<a name="l00049"></a>00049     <span class="keywordtype">int</span> lineWidth = 0;
<a name="l00050"></a>00050     <span class="keywordtype">int</span> x = 0;
<a name="l00051"></a>00051     <span class="keywordtype">int</span> y = 0;
<a name="l00052"></a>00052     <span class="keywordtype">int</span> w = r.<a class="codeRef" doxygen="qt.tag:" href="qrect.html#width">width</a>();
<a name="l00053"></a>00053     <span class="keywordtype">int</span> textwidth = 0;
<a name="l00054"></a>00054     <span class="keywordtype">bool</span> isBreakable = <span class="keyword">false</span>;
<a name="l00055"></a>00055     <span class="keywordtype">bool</span> wasBreakable = <span class="keyword">false</span>; <span class="comment">// value of isBreakable for last char (i-1)</span>
<a name="l00056"></a>00056     <span class="keywordtype">bool</span> isParens = <span class="keyword">false</span>; <span class="comment">// true if one of ({[</span>
<a name="l00057"></a>00057     <span class="keywordtype">bool</span> wasParens = <span class="keyword">false</span>; <span class="comment">// value of isParens for last char (i-1)</span>
<a name="l00058"></a>00058 
<a name="l00059"></a>00059     <span class="keywordflow">for</span> ( <span class="keywordtype">int</span> i = 0 ; i &lt; len; ++i )
<a name="l00060"></a>00060     {
<a name="l00061"></a>00061         <a class="codeRef" doxygen="qt.tag:" href="qchar.html">QChar</a> c = str[i];
<a name="l00062"></a>00062         <span class="keywordtype">int</span> ww = fm.<a class="codeRef" doxygen="qt.tag:" href="qfontmetrics.html#charWidth">charWidth</a>( str, i );
<a name="l00063"></a>00063 
<a name="l00064"></a>00064         isParens = ( c == <span class="charliteral">'('</span> || c == <span class="charliteral">'['</span> || c == <span class="charliteral">'{'</span> );
<a name="l00065"></a>00065         <span class="comment">// isBreakable is true when we can break _after_ this character.</span>
<a name="l00066"></a>00066         isBreakable = ( c.<a class="codeRef" doxygen="qt.tag:" href="qchar.html#isSpace">isSpace</a>() || c.<a class="codeRef" doxygen="qt.tag:" href="qchar.html#isPunct">isPunct</a>() || c.<a class="codeRef" doxygen="qt.tag:" href="qchar.html#isSymbol">isSymbol</a>() ) &amp; !isParens;
<a name="l00067"></a>00067 
<a name="l00068"></a>00068         <span class="comment">// Special case for '(', '[' and '{': we want to break before them</span>
<a name="l00069"></a>00069         <span class="keywordflow">if</span> ( !isBreakable &amp;&amp; i &lt; len-1 ) {
<a name="l00070"></a>00070             <a class="codeRef" doxygen="qt.tag:" href="qchar.html">QChar</a> nextc = str[i+1]; <span class="comment">// look at next char</span>
<a name="l00071"></a>00071             isBreakable = ( nextc == <span class="charliteral">'('</span> || nextc == <span class="charliteral">'['</span> || nextc == <span class="charliteral">'{'</span> );
<a name="l00072"></a>00072         }
<a name="l00073"></a>00073         <span class="comment">// Special case for '/': after normal chars it's breakable (e.g. inside a path),</span>
<a name="l00074"></a>00074         <span class="comment">// but after another breakable char it's not (e.g. "mounted at /foo")</span>
<a name="l00075"></a>00075         <span class="comment">// Same thing after a parenthesis (e.g. "dfaure [/fool]")</span>
<a name="l00076"></a>00076         <span class="keywordflow">if</span> ( c == <span class="charliteral">'/'</span> &amp;&amp; (wasBreakable || wasParens) )
<a name="l00077"></a>00077             isBreakable = <span class="keyword">false</span>;
<a name="l00078"></a>00078 
<a name="l00079"></a>00079         <span class="comment">/*kdDebug() &lt;&lt; "c='" &lt;&lt; QString(c) &lt;&lt; "' i=" &lt;&lt; i &lt;&lt; "/" &lt;&lt; len</span>
<a name="l00080"></a>00080 <span class="comment">                  &lt;&lt; " x=" &lt;&lt; x &lt;&lt; " ww=" &lt;&lt; ww &lt;&lt; " w=" &lt;&lt; w</span>
<a name="l00081"></a>00081 <span class="comment">                  &lt;&lt; " lastBreak=" &lt;&lt; lastBreak &lt;&lt; " isBreakable=" &lt;&lt; isBreakable &lt;&lt; endl;*/</span>
<a name="l00082"></a>00082         <span class="keywordtype">int</span> breakAt = -1;
<a name="l00083"></a>00083         <span class="keywordflow">if</span> ( x + ww &gt; w &amp;&amp; lastBreak != -1 ) <span class="comment">// time to break and we know where</span>
<a name="l00084"></a>00084             breakAt = lastBreak;
<a name="l00085"></a>00085         <span class="keywordflow">if</span> ( x + ww &gt; w - 4 &amp;&amp; lastBreak == -1 ) <span class="comment">// time to break but found nowhere [-&gt; break here]</span>
<a name="l00086"></a>00086             breakAt = i;
<a name="l00087"></a>00087         <span class="keywordflow">if</span> ( i == len - 2 &amp;&amp; x + ww + fm.<a class="codeRef" doxygen="qt.tag:" href="qfontmetrics.html#charWidth">charWidth</a>( str, i+1 ) &gt; w ) <span class="comment">// don't leave the last char alone</span>
<a name="l00088"></a>00088             breakAt = lastBreak == -1 ? i - 1 : lastBreak;
<a name="l00089"></a>00089         <span class="keywordflow">if</span> ( c == <span class="charliteral">'\n'</span> ) <span class="comment">// Forced break here</span>
<a name="l00090"></a>00090         {
<a name="l00091"></a>00091             <span class="keywordflow">if</span> ( breakAt == -1 &amp;&amp; lastBreak != -1) <span class="comment">// only break if not already breaking</span>
<a name="l00092"></a>00092             {
<a name="l00093"></a>00093                 breakAt = i - 1;
<a name="l00094"></a>00094                 lastBreak = -1;
<a name="l00095"></a>00095             }
<a name="l00096"></a>00096             <span class="comment">// remove the line feed from the string</span>
<a name="l00097"></a>00097             kw-&gt;<a class="code" href="classKWordWrap.html#r3">m_text</a>.<a class="codeRef" doxygen="qt.tag:" href="qstring.html#remove">remove</a>(i, 1);
<a name="l00098"></a>00098             len--;
<a name="l00099"></a>00099         }
<a name="l00100"></a>00100         <span class="keywordflow">if</span> ( breakAt != -1 )
<a name="l00101"></a>00101         {
<a name="l00102"></a>00102             <span class="comment">//kdDebug() &lt;&lt; "KWordWrap::formatText breaking after " &lt;&lt; breakAt &lt;&lt; endl;</span>
<a name="l00103"></a>00103             kw-&gt;<a class="code" href="classKWordWrap.html#r0">m_breakPositions</a>.<a class="codeRef" doxygen="qt.tag:" href="qvaluelist.html#append">append</a>( breakAt );
<a name="l00104"></a>00104             <span class="keywordtype">int</span> thisLineWidth = lastBreak == -1 ? x + ww : lineWidth;
<a name="l00105"></a>00105             kw-&gt;<a class="code" href="classKWordWrap.html#r1">m_lineWidths</a>.<a class="codeRef" doxygen="qt.tag:" href="qvaluelist.html#append">append</a>( thisLineWidth );
<a name="l00106"></a>00106             textwidth = QMAX( textwidth, thisLineWidth );
<a name="l00107"></a>00107             x = 0;
<a name="l00108"></a>00108             y += height;
<a name="l00109"></a>00109             wasBreakable = <span class="keyword">true</span>;
<a name="l00110"></a>00110             wasParens = <span class="keyword">false</span>;
<a name="l00111"></a>00111             <span class="keywordflow">if</span> ( lastBreak != -1 )
<a name="l00112"></a>00112             {
<a name="l00113"></a>00113                 <span class="comment">// Breakable char was found, restart from there</span>
<a name="l00114"></a>00114                 i = lastBreak;
<a name="l00115"></a>00115                 lastBreak = -1;
<a name="l00116"></a>00116                 <span class="keywordflow">continue</span>;
<a name="l00117"></a>00117             }
<a name="l00118"></a>00118         } <span class="keywordflow">else</span> <span class="keywordflow">if</span> ( isBreakable )
<a name="l00119"></a>00119         {
<a name="l00120"></a>00120             lastBreak = i;
<a name="l00121"></a>00121             lineWidth = x + ww;
<a name="l00122"></a>00122         }
<a name="l00123"></a>00123         x += ww;
<a name="l00124"></a>00124         wasBreakable = isBreakable;
<a name="l00125"></a>00125         wasParens = isParens;
<a name="l00126"></a>00126     }
<a name="l00127"></a>00127     textwidth = QMAX( textwidth, x );
<a name="l00128"></a>00128     kw-&gt;<a class="code" href="classKWordWrap.html#r1">m_lineWidths</a>.<a class="codeRef" doxygen="qt.tag:" href="qvaluelist.html#append">append</a>( x );
<a name="l00129"></a>00129     y += height;
<a name="l00130"></a>00130     <span class="comment">//kdDebug() &lt;&lt; "KWordWrap::formatText boundingRect:" &lt;&lt; r.x() &lt;&lt; "," &lt;&lt; r.y() &lt;&lt; " " &lt;&lt; textwidth &lt;&lt; "x" &lt;&lt; y &lt;&lt; endl;</span>
<a name="l00131"></a>00131     <span class="keywordflow">if</span> ( r.<a class="codeRef" doxygen="qt.tag:" href="qrect.html#height">height</a>() &gt;= 0 &amp;&amp; y &gt; r.<a class="codeRef" doxygen="qt.tag:" href="qrect.html#height">height</a>() )
<a name="l00132"></a>00132         textwidth = r.<a class="codeRef" doxygen="qt.tag:" href="qrect.html#width">width</a>();
<a name="l00133"></a>00133     <span class="keywordtype">int</span> realY = y;
<a name="l00134"></a>00134     <span class="keywordflow">if</span> ( r.<a class="codeRef" doxygen="qt.tag:" href="qrect.html#height">height</a>() &gt;= 0 )
<a name="l00135"></a>00135     {
<a name="l00136"></a>00136         <span class="keywordflow">while</span> ( realY &gt; r.<a class="codeRef" doxygen="qt.tag:" href="qrect.html#height">height</a>() )
<a name="l00137"></a>00137             realY -= height;
<a name="l00138"></a>00138         realY = QMAX( realY, 0 );
<a name="l00139"></a>00139     }
<a name="l00140"></a>00140     kw-&gt;<a class="code" href="classKWordWrap.html#r2">m_boundingRect</a>.<a class="codeRef" doxygen="qt.tag:" href="qrect.html#setRect">setRect</a>( 0, 0, textwidth, realY );
<a name="l00141"></a>00141     <span class="keywordflow">return</span> kw;
<a name="l00142"></a>00142 }
<a name="l00143"></a>00143 
<a name="l00144"></a><a class="code" href="classKWordWrap.html#a4">00144</a> <a class="code" href="classKWordWrap.html#a4">KWordWrap::~KWordWrap</a>() {
<a name="l00145"></a>00145     <span class="keyword">delete</span> d;
<a name="l00146"></a>00146 }
<a name="l00147"></a>00147 
<a name="l00148"></a><a class="code" href="classKWordWrap.html#a1">00148</a> <a class="codeRef" doxygen="qt.tag:" href="qstring.html">QString</a> <a class="code" href="classKWordWrap.html#a1">KWordWrap::wrappedString</a>()<span class="keyword"> const</span>
<a name="l00149"></a>00149 <span class="keyword"></span>{
<a name="l00150"></a>00150     <span class="comment">// We use the calculated break positions to insert '\n' into the string</span>
<a name="l00151"></a>00151     <a class="codeRef" doxygen="qt.tag:" href="qstring.html">QString</a> ws;
<a name="l00152"></a>00152     <span class="keywordtype">int</span> start = 0;
<a name="l00153"></a>00153     <a class="codeRef" doxygen="qt.tag:" href="qvaluelist.html">QValueList&lt;int&gt;</a>::ConstIterator it = m_breakPositions.<a class="codeRef" doxygen="qt.tag:" href="qvaluelist.html#begin">begin</a>();
<a name="l00154"></a>00154     <span class="keywordflow">for</span> ( ; it != m_breakPositions.<a class="codeRef" doxygen="qt.tag:" href="qvaluelist.html#end">end</a>() ; ++it )
<a name="l00155"></a>00155     {
<a name="l00156"></a>00156         <span class="keywordtype">int</span> end = (*it);
<a name="l00157"></a>00157         ws += m_text.<a class="codeRef" doxygen="qt.tag:" href="qstring.html#mid">mid</a>( start, end - start + 1 ) + <span class="charliteral">'\n'</span>;
<a name="l00158"></a>00158         start = end + 1;
<a name="l00159"></a>00159     }
<a name="l00160"></a>00160     ws += m_text.<a class="codeRef" doxygen="qt.tag:" href="qstring.html#mid">mid</a>( start );
<a name="l00161"></a>00161     <span class="keywordflow">return</span> ws;
<a name="l00162"></a>00162 }
<a name="l00163"></a>00163 
<a name="l00164"></a><a class="code" href="classKWordWrap.html#a2">00164</a> <a class="codeRef" doxygen="qt.tag:" href="qstring.html">QString</a> <a class="code" href="classKWordWrap.html#a2">KWordWrap::truncatedString</a>( <span class="keywordtype">bool</span> dots )<span class="keyword"> const</span>
<a name="l00165"></a>00165 <span class="keyword"></span>{
<a name="l00166"></a>00166     <span class="keywordflow">if</span> ( m_breakPositions.<a class="codeRef" doxygen="qt.tag:" href="qvaluelist.html#isEmpty">isEmpty</a>() )
<a name="l00167"></a>00167         <span class="keywordflow">return</span> m_text;
<a name="l00168"></a>00168 
<a name="l00169"></a>00169     <a class="codeRef" doxygen="qt.tag:" href="qstring.html">QString</a> ts = m_text.<a class="codeRef" doxygen="qt.tag:" href="qstring.html#left">left</a>( m_breakPositions.<a class="codeRef" doxygen="qt.tag:" href="qvaluelist.html#first">first</a>() + 1 );
<a name="l00170"></a>00170     <span class="keywordflow">if</span> ( dots )
<a name="l00171"></a>00171         ts += <span class="stringliteral">"..."</span>;
<a name="l00172"></a>00172     <span class="keywordflow">return</span> ts;
<a name="l00173"></a>00173 }
<a name="l00174"></a>00174 
<a name="l00175"></a>00175 <span class="keyword">static</span> <a class="codeRef" doxygen="qt.tag:" href="qcolor.html">QColor</a> mixColors(<span class="keywordtype">double</span> p1, <a class="codeRef" doxygen="qt.tag:" href="qcolor.html">QColor</a> c1, <a class="codeRef" doxygen="qt.tag:" href="qcolor.html">QColor</a> c2) {
<a name="l00176"></a>00176   <span class="keywordflow">return</span> <a class="codeRef" doxygen="qt.tag:" href="qcolor.html">QColor</a>(<span class="keywordtype">int</span>(c1.<a class="codeRef" doxygen="qt.tag:" href="qcolor.html#red">red</a>() * p1 + c2.<a class="codeRef" doxygen="qt.tag:" href="qcolor.html#red">red</a>() * (1.0-p1)),
<a name="l00177"></a>00177                 int(c1.<a class="codeRef" doxygen="qt.tag:" href="qcolor.html#green">green</a>() * p1 + c2.<a class="codeRef" doxygen="qt.tag:" href="qcolor.html#green">green</a>() * (1.0-p1)),
<a name="l00178"></a>00178         int(c1.<a class="codeRef" doxygen="qt.tag:" href="qcolor.html#blue">blue</a>() * p1 + c2.<a class="codeRef" doxygen="qt.tag:" href="qcolor.html#blue">blue</a>() * (1.0-p1)));
<a name="l00179"></a>00179 }
<a name="l00180"></a>00180 
<a name="l00181"></a><a class="code" href="classKWordWrap.html#e1">00181</a> <span class="keywordtype">void</span> <a class="code" href="classKWordWrap.html#e1">KWordWrap::drawFadeoutText</a>(<a class="codeRef" doxygen="qt.tag:" href="qpainter.html">QPainter</a> *p, <span class="keywordtype">int</span> x, <span class="keywordtype">int</span> y, <span class="keywordtype">int</span> maxW,
<a name="l00182"></a>00182                                    <span class="keyword">const</span> <a class="codeRef" doxygen="qt.tag:" href="qstring.html">QString</a> &amp;t) {
<a name="l00183"></a>00183     <a class="codeRef" doxygen="qt.tag:" href="qfontmetrics.html">QFontMetrics</a> fm = p-&gt;<a class="codeRef" doxygen="qt.tag:" href="qpainter.html#fontMetrics">fontMetrics</a>();
<a name="l00184"></a>00184     <a class="codeRef" doxygen="qt.tag:" href="qcolor.html">QColor</a> bgColor = p-&gt;<a class="codeRef" doxygen="qt.tag:" href="qpainter.html#backgroundColor">backgroundColor</a>();
<a name="l00185"></a>00185     <a class="codeRef" doxygen="qt.tag:" href="qcolor.html">QColor</a> textColor = p-&gt;<a class="codeRef" doxygen="qt.tag:" href="qpainter.html#pen">pen</a>().color();
<a name="l00186"></a>00186 
<a name="l00187"></a>00187     <span class="keywordflow">if</span> ( ( fm.<a class="codeRef" doxygen="qt.tag:" href="qfontmetrics.html#boundingRect">boundingRect</a>( t ).width() &gt; maxW ) &amp;&amp; ( t.<a class="codeRef" doxygen="qt.tag:" href="qstring.html#length">length</a>() &gt; 1 ) ) {
<a name="l00188"></a>00188         <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> tl = 0;
<a name="l00189"></a>00189         <span class="keywordtype">int</span> w = 0;
<a name="l00190"></a>00190         <span class="keywordflow">while</span> ( tl &lt; t.<a class="codeRef" doxygen="qt.tag:" href="qstring.html#length">length</a>() ) {
<a name="l00191"></a>00191             w += fm.<a class="codeRef" doxygen="qt.tag:" href="qfontmetrics.html#charWidth">charWidth</a>( t, tl );
<a name="l00192"></a>00192             <span class="keywordflow">if</span> ( w &gt;= maxW )
<a name="l00193"></a>00193                 <span class="keywordflow">break</span>;
<a name="l00194"></a>00194             tl++;
<a name="l00195"></a>00195         }
<a name="l00196"></a>00196 
<a name="l00197"></a>00197         <span class="keywordflow">if</span> (tl &gt; 3) {
<a name="l00198"></a>00198             p-&gt;<a class="codeRef" doxygen="qt.tag:" href="qpainter.html#drawText">drawText</a>( x, y, t.<a class="codeRef" doxygen="qt.tag:" href="qstring.html#left">left</a>( tl - 3 ) );
<a name="l00199"></a>00199             x += fm.<a class="codeRef" doxygen="qt.tag:" href="qfontmetrics.html#width">width</a>( t.<a class="codeRef" doxygen="qt.tag:" href="qstring.html#left">left</a>( tl - 3 ) );
<a name="l00200"></a>00200         }
<a name="l00201"></a>00201         <span class="keywordtype">int</span> n = QMIN( tl, 3);
<a name="l00202"></a>00202         <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i &lt; n; i++) {
<a name="l00203"></a>00203             p-&gt;<a class="codeRef" doxygen="qt.tag:" href="qpainter.html#setPen">setPen</a>( mixColors( 0.70 - i * 0.25, textColor, bgColor ) );
<a name="l00204"></a>00204             <a class="codeRef" doxygen="qt.tag:" href="qstring.html">QString</a> s( t.<a class="codeRef" doxygen="qt.tag:" href="qstring.html#at">at</a>( tl - n + i ) );
<a name="l00205"></a>00205             p-&gt;<a class="codeRef" doxygen="qt.tag:" href="qpainter.html#drawText">drawText</a>( x, y, s );
<a name="l00206"></a>00206             x += fm.<a class="codeRef" doxygen="qt.tag:" href="qfontmetrics.html#width">width</a>( s );
<a name="l00207"></a>00207         }
<a name="l00208"></a>00208     }
<a name="l00209"></a>00209     <span class="keywordflow">else</span>
<a name="l00210"></a>00210         p-&gt;<a class="codeRef" doxygen="qt.tag:" href="qpainter.html#drawText">drawText</a>( x, y, t );
<a name="l00211"></a>00211 }
<a name="l00212"></a>00212 
<a name="l00213"></a><a class="code" href="classKWordWrap.html#e2">00213</a> <span class="keywordtype">void</span> <a class="code" href="classKWordWrap.html#e2">KWordWrap::drawTruncateText</a>(<a class="codeRef" doxygen="qt.tag:" href="qpainter.html">QPainter</a> *p, <span class="keywordtype">int</span> x, <span class="keywordtype">int</span> y, <span class="keywordtype">int</span> maxW,
<a name="l00214"></a>00214                                  <span class="keyword">const</span> <a class="codeRef" doxygen="qt.tag:" href="qstring.html">QString</a> &amp;t) {
<a name="l00215"></a>00215     <a class="codeRef" doxygen="qt.tag:" href="qstring.html">QString</a> tmpText = <a class="codeRef" doxygen="kdecore.tag:../../kdecore/html/" href="../../kdecore/html/classKStringHandler.html#e22">KStringHandler::rPixelSqueeze</a>( t, p-&gt;<a class="codeRef" doxygen="qt.tag:" href="qpainter.html#fontMetrics">fontMetrics</a>(), maxW );
<a name="l00216"></a>00216     p-&gt;<a class="codeRef" doxygen="qt.tag:" href="qpainter.html#drawText">drawText</a>( x, y, tmpText, maxW );
<a name="l00217"></a>00217 }
<a name="l00218"></a>00218 
<a name="l00219"></a><a class="code" href="classKWordWrap.html#a3">00219</a> <span class="keywordtype">void</span> <a class="code" href="classKWordWrap.html#a3">KWordWrap::drawText</a>( <a class="codeRef" doxygen="qt.tag:" href="qpainter.html">QPainter</a> *painter, <span class="keywordtype">int</span> textX, <span class="keywordtype">int</span> textY, <span class="keywordtype">int</span> flags )<span class="keyword"> const</span>
<a name="l00220"></a>00220 <span class="keyword"></span>{
<a name="l00221"></a>00221     <span class="comment">//kdDebug() &lt;&lt; "KWordWrap::drawText text=" &lt;&lt; wrappedString() &lt;&lt; " x=" &lt;&lt; textX &lt;&lt; " y=" &lt;&lt; textY &lt;&lt; endl;</span>
<a name="l00222"></a>00222     <span class="comment">// We use the calculated break positions to draw the text line by line using QPainter</span>
<a name="l00223"></a>00223     <span class="keywordtype">int</span> start = 0;
<a name="l00224"></a>00224     <span class="keywordtype">int</span> y = 0;
<a name="l00225"></a>00225     <a class="codeRef" doxygen="qt.tag:" href="qfontmetrics.html">QFontMetrics</a> fm = painter-&gt;<a class="codeRef" doxygen="qt.tag:" href="qpainter.html#fontMetrics">fontMetrics</a>();
<a name="l00226"></a>00226     <span class="keywordtype">int</span> height = fm.<a class="codeRef" doxygen="qt.tag:" href="qfontmetrics.html#height">height</a>(); <span class="comment">// line height</span>
<a name="l00227"></a>00227     <span class="keywordtype">int</span> ascent = fm.<a class="codeRef" doxygen="qt.tag:" href="qfontmetrics.html#ascent">ascent</a>();
<a name="l00228"></a>00228     <span class="keywordtype">int</span> maxwidth = m_boundingRect.<a class="codeRef" doxygen="qt.tag:" href="qrect.html#width">width</a>();
<a name="l00229"></a>00229     <a class="codeRef" doxygen="qt.tag:" href="qvaluelist.html">QValueList&lt;int&gt;</a>::ConstIterator it = m_breakPositions.<a class="codeRef" doxygen="qt.tag:" href="qvaluelist.html#begin">begin</a>();
<a name="l00230"></a>00230     <a class="codeRef" doxygen="qt.tag:" href="qvaluelist.html">QValueList&lt;int&gt;</a>::ConstIterator itw = m_lineWidths.<a class="codeRef" doxygen="qt.tag:" href="qvaluelist.html#begin">begin</a>();
<a name="l00231"></a>00231     <span class="keywordflow">for</span> ( ; it != m_breakPositions.<a class="codeRef" doxygen="qt.tag:" href="qvaluelist.html#end">end</a>() ; ++it, ++itw )
<a name="l00232"></a>00232     {
<a name="l00233"></a>00233         <span class="comment">// if this is the last line, leave the loop</span>
<a name="l00234"></a>00234         <span class="keywordflow">if</span> ( (d-&gt;m_constrainingRect.height() &gt;= 0) &amp;&amp;
<a name="l00235"></a>00235          ((y + 2 * height) &gt; d-&gt;m_constrainingRect.height()) )
<a name="l00236"></a>00236         <span class="keywordflow">break</span>;
<a name="l00237"></a>00237         <span class="keywordtype">int</span> end = (*it);
<a name="l00238"></a>00238         <span class="keywordtype">int</span> x = textX;
<a name="l00239"></a>00239         <span class="keywordflow">if</span> ( flags &amp; Qt::AlignHCenter )
<a name="l00240"></a>00240             x += ( maxwidth - *itw ) / 2;
<a name="l00241"></a>00241         <span class="keywordflow">else</span> <span class="keywordflow">if</span> ( flags &amp; Qt::AlignRight )
<a name="l00242"></a>00242             x += maxwidth - *itw;
<a name="l00243"></a>00243         painter-&gt;<a class="codeRef" doxygen="qt.tag:" href="qpainter.html#drawText">drawText</a>( x, textY + y + ascent, m_text.<a class="codeRef" doxygen="qt.tag:" href="qstring.html#mid">mid</a>( start, end - start + 1 ) );
<a name="l00244"></a>00244         y += height;
<a name="l00245"></a>00245         start = end + 1;
<a name="l00246"></a>00246     }
<a name="l00247"></a>00247     <span class="comment">// Draw the last line</span>
<a name="l00248"></a>00248     <span class="keywordtype">int</span> x = textX;
<a name="l00249"></a>00249     <span class="keywordflow">if</span> ( flags &amp; Qt::AlignHCenter )
<a name="l00250"></a>00250         x += ( maxwidth - *itw ) / 2;
<a name="l00251"></a>00251     <span class="keywordflow">else</span> <span class="keywordflow">if</span> ( flags &amp; Qt::AlignRight )
<a name="l00252"></a>00252         x += maxwidth - *itw;
<a name="l00253"></a>00253     <span class="keywordflow">if</span> ( (d-&gt;m_constrainingRect.height() &lt; 0) ||
<a name="l00254"></a>00254          ((y + height) &lt;= d-&gt;m_constrainingRect.height()) ) {
<a name="l00255"></a>00255     <span class="keywordflow">if</span> ( it == m_breakPositions.<a class="codeRef" doxygen="qt.tag:" href="qvaluelist.html#end">end</a>() )
<a name="l00256"></a>00256             painter-&gt;<a class="codeRef" doxygen="qt.tag:" href="qpainter.html#drawText">drawText</a>( x, textY + y + ascent, m_text.<a class="codeRef" doxygen="qt.tag:" href="qstring.html#mid">mid</a>( start ) );
<a name="l00257"></a>00257     <span class="keywordflow">else</span> <span class="keywordflow">if</span> (flags &amp; FadeOut)
<a name="l00258"></a>00258         <a class="code" href="classKWordWrap.html#e1">drawFadeoutText</a>( painter, textX, textY + y + ascent,
<a name="l00259"></a>00259                          d-&gt;m_constrainingRect.width(),
<a name="l00260"></a>00260                  m_text.<a class="codeRef" doxygen="qt.tag:" href="qstring.html#mid">mid</a>( start ) );
<a name="l00261"></a>00261         <span class="keywordflow">else</span> <span class="keywordflow">if</span> (flags &amp; Truncate)
<a name="l00262"></a>00262             <a class="code" href="classKWordWrap.html#e2">drawTruncateText</a>( painter, textX, textY + y + ascent,
<a name="l00263"></a>00263                               d-&gt;m_constrainingRect.width(),
<a name="l00264"></a>00264                   m_text.<a class="codeRef" doxygen="qt.tag:" href="qstring.html#mid">mid</a>( start ) );
<a name="l00265"></a>00265     <span class="keywordflow">else</span>
<a name="l00266"></a>00266             painter-&gt;drawText( x, textY + y + ascent,
<a name="l00267"></a>00267                            m_text.<a class="codeRef" doxygen="qt.tag:" href="qstring.html#mid">mid</a>( start, (*it) - start + 1 ) );
<a name="l00268"></a>00268     }
<a name="l00269"></a>00269 }
</pre></div>    </div></div>


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