<?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml" lang="en_US" xml:lang="en_US"> <head> <title>kdeui: kwordwrap.cpp Source File (kdeui)</title> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <meta http-equiv="Content-Style-Type" content="text/css" /> <meta http-equiv="pics-label" content='(pics-1.1 "http://www.icra.org/ratingsv02.html" comment "ICRAonline DE v2.0" l gen true for "http://www.kde.org" r (nz 1 vz 1 lz 1 oz 1 cb 1) "http://www.rsac.org/ratingsv01.html" l gen true for "http://www.kde.org" r (n 0 s 0 v 0 l 0))' /> <meta name="trademark" content="KDE e.V." /> <meta name="description" content="K Desktop Environment Homepage, KDE.org" /> <meta name="MSSmartTagsPreventParsing" content="true" /> <meta name="robots" content="all" /> <link rel="shortcut icon" href="../../favicon.ico" /> <link rel="stylesheet" media="screen" type="text/css" title="APIDOX" href="doxygen.css" /> </head> <body> <div id="nav_header_top" align="right"> <a href="#content" class="doNotDisplay" accesskey="2">Skip to main content ::</a> <a href="../.."><img id="nav_header_logo" alt="Home" align="left" src="../../kde_gear_64.png" border="0" /></a> <span class="doNotDisplay">::</span> <div id="nav_header_title" align="left">KDE API Reference</div> </div> <div id="nav_header_bottom" align="right"> <span class="doNotDisplay">:: <a href="#navigation" accesskey="5">Skip to Link Menu</a><br/></span> <div id="nav_header_bottom_right" style="text-align: left;"> / <a href="../..">API Reference</a> / <a href=".">kdeui</a> </div> </div> <table id="main" border="0" cellpadding="0" cellspacing="0" width="100%"> <tr> <td valign="top" class="menuheader" height="0"></td> <td id="contentcolumn" valign="top" rowspan="2" > <div id="content" style="padding-top: 0px;"><div style="width:100%; margin: 0px; padding: 0px;"> <a name="content"></a> <!-- Generated by Doxygen 1.4.4 --> <div class="nav"> <a class="el" href="dir_000000.html">kdeui</a></div> <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 <david@mandrakesoft.com></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 <kdebug.h></span> <a name="l00021"></a>00021 <span class="preprocessor">#include <kstringhandler.h></span> <a name="l00022"></a>00022 <span class="preprocessor">#include <qpainter.h></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> & r) { <a name="l00030"></a>00030 d = <span class="keyword">new</span> KWordWrapPrivate; <a name="l00031"></a>00031 d->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> &fm, <span class="keyword">const</span> <a class="codeRef" doxygen="qt.tag:" href="qrect.html">QRect</a> & 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> & 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() << "KWordWrap::formatText " << str << " r=" << r.x() << "," << r.y() << " " << r.width() << "x" << r.height() << 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-><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-><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 < 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>() ) & !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 && i < 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> && (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() << "c='" << QString(c) << "' i=" << i << "/" << len</span> <a name="l00080"></a>00080 <span class="comment"> << " x=" << x << " ww=" << ww << " w=" << w</span> <a name="l00081"></a>00081 <span class="comment"> << " lastBreak=" << lastBreak << " isBreakable=" << isBreakable << 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 > w && 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 > w - 4 && lastBreak == -1 ) <span class="comment">// time to break but found nowhere [-> break here]</span> <a name="l00086"></a>00086 breakAt = i; <a name="l00087"></a>00087 <span class="keywordflow">if</span> ( i == len - 2 && x + ww + fm.<a class="codeRef" doxygen="qt.tag:" href="qfontmetrics.html#charWidth">charWidth</a>( str, i+1 ) > 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 && 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-><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() << "KWordWrap::formatText breaking after " << breakAt << endl;</span> <a name="l00103"></a>00103 kw-><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-><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-><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() << "KWordWrap::formatText boundingRect:" << r.x() << "," << r.y() << " " << textwidth << "x" << y << 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>() >= 0 && y > 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>() >= 0 ) <a name="l00135"></a>00135 { <a name="l00136"></a>00136 <span class="keywordflow">while</span> ( realY > 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-><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<int></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> &t) { <a name="l00183"></a>00183 <a class="codeRef" doxygen="qt.tag:" href="qfontmetrics.html">QFontMetrics</a> fm = p-><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-><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-><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() > maxW ) && ( t.<a class="codeRef" doxygen="qt.tag:" href="qstring.html#length">length</a>() > 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 < 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 >= 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 > 3) { <a name="l00198"></a>00198 p-><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 < n; i++) { <a name="l00203"></a>00203 p-><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-><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-><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> &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-><a class="codeRef" doxygen="qt.tag:" href="qpainter.html#fontMetrics">fontMetrics</a>(), maxW ); <a name="l00216"></a>00216 p-><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() << "KWordWrap::drawText text=" << wrappedString() << " x=" << textX << " y=" << textY << 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-><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<int></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<int></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->m_constrainingRect.height() >= 0) && <a name="l00235"></a>00235 ((y + 2 * height) > d->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 & 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 & Qt::AlignRight ) <a name="l00242"></a>00242 x += maxwidth - *itw; <a name="l00243"></a>00243 painter-><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 & 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 & Qt::AlignRight ) <a name="l00252"></a>00252 x += maxwidth - *itw; <a name="l00253"></a>00253 <span class="keywordflow">if</span> ( (d->m_constrainingRect.height() < 0) || <a name="l00254"></a>00254 ((y + height) <= d->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-><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 & 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->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 & 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->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->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> </td> </tr> <tr> <td valign="top" id="leftmenu" width="25%"> <a name="navigation"></a> <div class="menu_box"><h2>kdeui</h2> <div class="nav_list"> <ul><li><a href="index.html">Main Page</a></li><li><a href="namespaces.html">Namespace List</a></li><li><a href="hierarchy.html">Class Hierarchy</a></li><li><a href="classes.html">Alphabetical List</a></li><li><a href="annotated.html">Class List</a></li><li><a href="files.html">File 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