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<h1>kpushbutton.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) 2000 Carsten Pfeiffer &lt;pfeiffer@kde.org&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 as published by the Free Software Foundation; either</span>
<a name="l00007"></a>00007 <span class="comment">    version 2 of the License, or (at your option) any later version.</span>
<a name="l00008"></a>00008 <span class="comment"></span>
<a name="l00009"></a>00009 <span class="comment">    This library is distributed in the hope that it will be useful,</span>
<a name="l00010"></a>00010 <span class="comment">    but WITHOUT ANY WARRANTY; without even the implied warranty of</span>
<a name="l00011"></a>00011 <span class="comment">    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU</span>
<a name="l00012"></a>00012 <span class="comment">    Library General Public License for more details.</span>
<a name="l00013"></a>00013 <span class="comment"></span>
<a name="l00014"></a>00014 <span class="comment">    You should have received a copy of the GNU Library General Public License</span>
<a name="l00015"></a>00015 <span class="comment">    along with this library; see the file COPYING.LIB.  If not, write to</span>
<a name="l00016"></a>00016 <span class="comment">    the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,</span>
<a name="l00017"></a>00017 <span class="comment">    Boston, MA 02110-1301, USA.</span>
<a name="l00018"></a>00018 <span class="comment">*/</span>
<a name="l00019"></a>00019 
<a name="l00020"></a>00020 <span class="preprocessor">#include "kpushbutton.h"</span>
<a name="l00021"></a>00021 
<a name="l00022"></a>00022 <span class="preprocessor">#include &lt;qdragobject.h&gt;</span>
<a name="l00023"></a>00023 <span class="preprocessor">#include &lt;qwhatsthis.h&gt;</span>
<a name="l00024"></a>00024 <span class="preprocessor">#include &lt;qtooltip.h&gt;</span>
<a name="l00025"></a>00025 
<a name="l00026"></a>00026 <span class="preprocessor">#include "config.h"</span>
<a name="l00027"></a>00027 
<a name="l00028"></a>00028 <span class="preprocessor">#include &lt;kglobalsettings.h&gt;</span>
<a name="l00029"></a>00029 <span class="preprocessor">#include &lt;kconfig.h&gt;</span>
<a name="l00030"></a>00030 <span class="preprocessor">#include &lt;kglobal.h&gt;</span>
<a name="l00031"></a>00031 <span class="preprocessor">#include &lt;kipc.h&gt;</span> 
<a name="l00032"></a>00032 <span class="preprocessor">#include &lt;kapplication.h&gt;</span>
<a name="l00033"></a>00033 
<a name="l00034"></a>00034 <span class="keyword">class </span>KPushButton::KPushButtonPrivate
<a name="l00035"></a>00035 {
<a name="l00036"></a>00036 <span class="keyword">public</span>:
<a name="l00037"></a>00037     <a class="code" href="classKGuiItem.html">KGuiItem</a> item;
<a name="l00038"></a>00038     <a class="code" href="classKStdGuiItem.html#w34">KStdGuiItem::StdItem</a> itemType;
<a name="l00039"></a>00039 };
<a name="l00040"></a>00040 
<a name="l00041"></a>00041 <span class="keywordtype">bool</span> KPushButton::s_useIcons = <span class="keyword">false</span>;
<a name="l00042"></a>00042 
<a name="l00043"></a><a class="code" href="classKPushButton.html#a0">00043</a> <a class="code" href="classKPushButton.html#a0">KPushButton::KPushButton</a>( <a class="codeRef" doxygen="qt.tag:" href="qwidget.html">QWidget</a> *parent, <span class="keyword">const</span> <span class="keywordtype">char</span> *name )
<a name="l00044"></a>00044     : <a class="codeRef" doxygen="qt.tag:" href="qpushbutton.html">QPushButton</a>( parent, name ),
<a name="l00045"></a>00045       m_dragEnabled( false )
<a name="l00046"></a>00046 {
<a name="l00047"></a>00047     init( <a class="code" href="classKGuiItem.html">KGuiItem</a>( <span class="stringliteral">""</span> ) );
<a name="l00048"></a>00048 }
<a name="l00049"></a>00049 
<a name="l00050"></a><a class="code" href="classKPushButton.html#a1">00050</a> <a class="code" href="classKPushButton.html#a0">KPushButton::KPushButton</a>( <span class="keyword">const</span> <a class="codeRef" doxygen="qt.tag:" href="qstring.html">QString</a> &amp;text, <a class="codeRef" doxygen="qt.tag:" href="qwidget.html">QWidget</a> *parent,
<a name="l00051"></a>00051                           <span class="keyword">const</span> <span class="keywordtype">char</span> *name)
<a name="l00052"></a>00052     : <a class="codeRef" doxygen="qt.tag:" href="qpushbutton.html">QPushButton</a>( parent, name ),
<a name="l00053"></a>00053       m_dragEnabled( false )
<a name="l00054"></a>00054 {
<a name="l00055"></a>00055     init( <a class="code" href="classKGuiItem.html">KGuiItem</a>( text ) );
<a name="l00056"></a>00056 }
<a name="l00057"></a>00057 
<a name="l00058"></a><a class="code" href="classKPushButton.html#a2">00058</a> <a class="code" href="classKPushButton.html#a0">KPushButton::KPushButton</a>( <span class="keyword">const</span> <a class="codeRef" doxygen="qt.tag:" href="qiconset.html">QIconSet</a> &amp;icon, <span class="keyword">const</span> <a class="codeRef" doxygen="qt.tag:" href="qstring.html">QString</a> &amp;text,
<a name="l00059"></a>00059                           <a class="codeRef" doxygen="qt.tag:" href="qwidget.html">QWidget</a> *parent, <span class="keyword">const</span> <span class="keywordtype">char</span> *name )
<a name="l00060"></a>00060     : <a class="codeRef" doxygen="qt.tag:" href="qpushbutton.html">QPushButton</a>( text, parent, name ),
<a name="l00061"></a>00061       m_dragEnabled( false )
<a name="l00062"></a>00062 {
<a name="l00063"></a>00063     init( <a class="code" href="classKGuiItem.html">KGuiItem</a>( text, icon ) );
<a name="l00064"></a>00064 }
<a name="l00065"></a>00065 
<a name="l00066"></a><a class="code" href="classKPushButton.html#a3">00066</a> <a class="code" href="classKPushButton.html#a0">KPushButton::KPushButton</a>( <span class="keyword">const</span> <a class="code" href="classKGuiItem.html">KGuiItem</a> &amp;item, <a class="codeRef" doxygen="qt.tag:" href="qwidget.html">QWidget</a> *parent,
<a name="l00067"></a>00067                           <span class="keyword">const</span> <span class="keywordtype">char</span> *name )
<a name="l00068"></a>00068     : <a class="codeRef" doxygen="qt.tag:" href="qpushbutton.html">QPushButton</a>( parent, name ),
<a name="l00069"></a>00069       m_dragEnabled( false )
<a name="l00070"></a>00070 {
<a name="l00071"></a>00071     init( item );
<a name="l00072"></a>00072 }
<a name="l00073"></a>00073 
<a name="l00074"></a><a class="code" href="classKPushButton.html#a4">00074</a> <a class="code" href="classKPushButton.html#a4">KPushButton::~KPushButton</a>()
<a name="l00075"></a>00075 {
<a name="l00076"></a>00076     <span class="keywordflow">if</span>( d )
<a name="l00077"></a>00077     {
<a name="l00078"></a>00078         <span class="keyword">delete</span> d;
<a name="l00079"></a>00079         d = 0L;
<a name="l00080"></a>00080     }
<a name="l00081"></a>00081 }
<a name="l00082"></a>00082 
<a name="l00083"></a>00083 <span class="keywordtype">void</span> KPushButton::init( <span class="keyword">const</span> <a class="code" href="classKGuiItem.html">KGuiItem</a> &amp;item )
<a name="l00084"></a>00084 {
<a name="l00085"></a>00085     d = <span class="keyword">new</span> KPushButtonPrivate;
<a name="l00086"></a>00086     d-&gt;item = item;
<a name="l00087"></a>00087     d-&gt;itemType = (<a class="code" href="classKStdGuiItem.html#w34">KStdGuiItem::StdItem</a>) 0;
<a name="l00088"></a>00088 
<a name="l00089"></a>00089     <span class="comment">// call QPushButton's implementation since we don't need to </span>
<a name="l00090"></a>00090     <span class="comment">// set the GUI items text or check the state of the icon set</span>
<a name="l00091"></a>00091     <a class="codeRef" doxygen="qt.tag:" href="qpushbutton.html#setText">QPushButton::setText</a>( d-&gt;item.text() );
<a name="l00092"></a>00092 
<a name="l00093"></a>00093     <span class="keyword">static</span> <span class="keywordtype">bool</span> initialized = <span class="keyword">false</span>;
<a name="l00094"></a>00094     <span class="keywordflow">if</span> ( !initialized ) {
<a name="l00095"></a>00095         readSettings();
<a name="l00096"></a>00096         initialized = <span class="keyword">true</span>;
<a name="l00097"></a>00097     }
<a name="l00098"></a>00098 
<a name="l00099"></a>00099     <a class="code" href="classKPushButton.html#a12">setIconSet</a>( d-&gt;item.iconSet() );
<a name="l00100"></a>00100 
<a name="l00101"></a>00101     setSizePolicy( <a class="codeRef" doxygen="qt.tag:" href="qsizepolicy.html">QSizePolicy</a>( QSizePolicy::Minimum, QSizePolicy::Minimum ) );
<a name="l00102"></a>00102 
<a name="l00103"></a>00103     <a class="codeRef" doxygen="qt.tag:" href="qtooltip.html#add">QToolTip::add</a>( <span class="keyword">this</span>, item.<a class="code" href="classKGuiItem.html#a11">toolTip</a>() );
<a name="l00104"></a>00104 
<a name="l00105"></a>00105     <a class="codeRef" doxygen="qt.tag:" href="qwhatsthis.html#add">QWhatsThis::add</a>( <span class="keyword">this</span>, item.<a class="code" href="classKGuiItem.html#a12">whatsThis</a>() );
<a name="l00106"></a>00106 
<a name="l00107"></a>00107     <span class="keywordflow">if</span> (kapp)
<a name="l00108"></a>00108     {
<a name="l00109"></a>00109        connect( kapp, SIGNAL( settingsChanged(<span class="keywordtype">int</span>) ),
<a name="l00110"></a>00110                SLOT( slotSettingsChanged(<span class="keywordtype">int</span>) ) );
<a name="l00111"></a>00111        kapp-&gt;addKipcEventMask( KIPC::SettingsChanged );
<a name="l00112"></a>00112     }
<a name="l00113"></a>00113 }
<a name="l00114"></a>00114 
<a name="l00115"></a>00115 <span class="keywordtype">void</span> KPushButton::readSettings()
<a name="l00116"></a>00116 {
<a name="l00117"></a>00117     s_useIcons = <a class="codeRef" doxygen="kdecore.tag:../../kdecore/html/" href="../../kdecore/html/classKGlobalSettings.html#e44">KGlobalSettings::showIconsOnPushButtons</a>();
<a name="l00118"></a>00118 }
<a name="l00119"></a>00119 
<a name="l00120"></a><a class="code" href="classKPushButton.html#a7">00120</a> <span class="keywordtype">void</span> <a class="code" href="classKPushButton.html#a7">KPushButton::setGuiItem</a>( <span class="keyword">const</span> <a class="code" href="classKGuiItem.html">KGuiItem</a>&amp; item )
<a name="l00121"></a>00121 {
<a name="l00122"></a>00122     d-&gt;item = item;
<a name="l00123"></a>00123 
<a name="l00124"></a>00124     <span class="comment">// call QPushButton's implementation since we don't need to </span>
<a name="l00125"></a>00125     <span class="comment">// set the GUI items text or check the state of the icon set</span>
<a name="l00126"></a>00126     <a class="codeRef" doxygen="qt.tag:" href="qpushbutton.html#setText">QPushButton::setText</a>( d-&gt;item.text() );
<a name="l00127"></a>00127     <a class="code" href="classKPushButton.html#a12">setIconSet</a>( d-&gt;item.iconSet() );
<a name="l00128"></a>00128     <a class="codeRef" doxygen="qt.tag:" href="qwhatsthis.html#add">QWhatsThis::add</a>( <span class="keyword">this</span>, d-&gt;item.whatsThis() );
<a name="l00129"></a>00129 
<a name="l00130"></a>00130     <span class="comment">// Do not add a tooltip to the button automatically as 99% of the time the</span>
<a name="l00131"></a>00131     <span class="comment">// tooltip is redundant to the button text and it results in QTipManager</span>
<a name="l00132"></a>00132     <span class="comment">// invoking an eventHandler on the QApplication which breaks certain apps</span>
<a name="l00133"></a>00133     <span class="comment">// like KDesktop which are sensitive to such things</span>
<a name="l00134"></a>00134 <span class="comment">//    QToolTip::add( this, d-&gt;item.toolTip() );</span>
<a name="l00135"></a>00135 }
<a name="l00136"></a>00136 
<a name="l00137"></a><a class="code" href="classKPushButton.html#a8">00137</a> <span class="keywordtype">void</span> <a class="code" href="classKPushButton.html#a7">KPushButton::setGuiItem</a>( <a class="code" href="classKStdGuiItem.html#w34">KStdGuiItem::StdItem</a> item )
<a name="l00138"></a>00138 {
<a name="l00139"></a>00139     <a class="code" href="classKPushButton.html#a7">setGuiItem</a>( <a class="code" href="classKStdGuiItem.html#e0">KStdGuiItem::guiItem</a>(item) );
<a name="l00140"></a>00140     d-&gt;itemType = item;
<a name="l00141"></a>00141 }
<a name="l00142"></a>00142 
<a name="l00143"></a><a class="code" href="classKPushButton.html#a9">00143</a> <a class="code" href="classKStdGuiItem.html#w34">KStdGuiItem::StdItem</a> <a class="code" href="classKPushButton.html#a9">KPushButton::guiItem</a>()<span class="keyword"> const</span>
<a name="l00144"></a>00144 <span class="keyword"></span>{
<a name="l00145"></a>00145     <span class="keywordflow">return</span> d-&gt;itemType;
<a name="l00146"></a>00146 }
<a name="l00147"></a>00147 
<a name="l00148"></a><a class="code" href="classKPushButton.html#a13">00148</a> <span class="keywordtype">void</span> <a class="code" href="classKPushButton.html#a13">KPushButton::setText</a>( <span class="keyword">const</span> <a class="codeRef" doxygen="qt.tag:" href="qstring.html">QString</a> &amp;text )
<a name="l00149"></a>00149 {
<a name="l00150"></a>00150     <a class="codeRef" doxygen="qt.tag:" href="qpushbutton.html#setText">QPushButton::setText</a>(text);
<a name="l00151"></a>00151 
<a name="l00152"></a>00152     <span class="comment">// we need to re-evaluate the icon set when the text</span>
<a name="l00153"></a>00153     <span class="comment">// is removed, or when it is supplied</span>
<a name="l00154"></a>00154     <span class="keywordflow">if</span> (text.<a class="codeRef" doxygen="qt.tag:" href="qstring.html#isEmpty">isEmpty</a>() != d-&gt;item.text().isEmpty())
<a name="l00155"></a>00155         <a class="code" href="classKPushButton.html#a12">setIconSet</a>(d-&gt;item.iconSet());
<a name="l00156"></a>00156 
<a name="l00157"></a>00157     d-&gt;item.setText(text);
<a name="l00158"></a>00158 }
<a name="l00159"></a>00159 
<a name="l00160"></a><a class="code" href="classKPushButton.html#a12">00160</a> <span class="keywordtype">void</span> <a class="code" href="classKPushButton.html#a12">KPushButton::setIconSet</a>( <span class="keyword">const</span> <a class="codeRef" doxygen="qt.tag:" href="qiconset.html">QIconSet</a> &amp;iconSet )
<a name="l00161"></a>00161 {
<a name="l00162"></a>00162     d-&gt;item.setIconSet(iconSet);
<a name="l00163"></a>00163 
<a name="l00164"></a>00164     <span class="keywordflow">if</span> ( s_useIcons || <a class="codeRef" doxygen="qt.tag:" href="qpushbutton.html#text">text</a>().isEmpty() )
<a name="l00165"></a>00165         <a class="codeRef" doxygen="qt.tag:" href="qpushbutton.html#setIconSet">QPushButton::setIconSet</a>( iconSet );
<a name="l00166"></a>00166     <span class="keywordflow">else</span>
<a name="l00167"></a>00167         <a class="codeRef" doxygen="qt.tag:" href="qpushbutton.html#setIconSet">QPushButton::setIconSet</a>( <a class="codeRef" doxygen="qt.tag:" href="qiconset.html">QIconSet</a>() );
<a name="l00168"></a>00168 }
<a name="l00169"></a>00169 
<a name="l00170"></a>00170 <span class="keywordtype">void</span> KPushButton::slotSettingsChanged( <span class="keywordtype">int</span> <span class="comment">/* category */</span> )
<a name="l00171"></a>00171 {
<a name="l00172"></a>00172     readSettings();
<a name="l00173"></a>00173     <a class="code" href="classKPushButton.html#a12">setIconSet</a>( d-&gt;item.iconSet() );
<a name="l00174"></a>00174 }
<a name="l00175"></a>00175 
<a name="l00176"></a><a class="code" href="classKPushButton.html#a5">00176</a> <span class="keywordtype">void</span> <a class="code" href="classKPushButton.html#a5">KPushButton::setDragEnabled</a>( <span class="keywordtype">bool</span> enable )
<a name="l00177"></a>00177 {
<a name="l00178"></a>00178     m_dragEnabled = enable;
<a name="l00179"></a>00179 }
<a name="l00180"></a>00180 
<a name="l00181"></a><a class="code" href="classKPushButton.html#b1">00181</a> <span class="keywordtype">void</span> <a class="code" href="classKPushButton.html#b1">KPushButton::mousePressEvent</a>( <a class="codeRef" doxygen="qt.tag:" href="qmouseevent.html">QMouseEvent</a> *e )
<a name="l00182"></a>00182 {
<a name="l00183"></a>00183     <span class="keywordflow">if</span> ( m_dragEnabled )
<a name="l00184"></a>00184     startPos = e-&gt;<a class="codeRef" doxygen="qt.tag:" href="qmouseevent.html#pos">pos</a>();
<a name="l00185"></a>00185     QPushButton::mousePressEvent( e );
<a name="l00186"></a>00186 }
<a name="l00187"></a>00187 
<a name="l00188"></a><a class="code" href="classKPushButton.html#b2">00188</a> <span class="keywordtype">void</span> <a class="code" href="classKPushButton.html#b2">KPushButton::mouseMoveEvent</a>( <a class="codeRef" doxygen="qt.tag:" href="qmouseevent.html">QMouseEvent</a> *e )
<a name="l00189"></a>00189 {
<a name="l00190"></a>00190     <span class="keywordflow">if</span> ( !m_dragEnabled )
<a name="l00191"></a>00191     {
<a name="l00192"></a>00192         QPushButton::mouseMoveEvent( e );
<a name="l00193"></a>00193         <span class="keywordflow">return</span>;
<a name="l00194"></a>00194     }
<a name="l00195"></a>00195 
<a name="l00196"></a>00196     <span class="keywordflow">if</span> ( (e-&gt;<a class="codeRef" doxygen="qt.tag:" href="qmouseevent.html#state">state</a>() &amp; LeftButton) &amp;&amp;
<a name="l00197"></a>00197          (e-&gt;<a class="codeRef" doxygen="qt.tag:" href="qmouseevent.html#pos">pos</a>() - startPos).manhattanLength() &gt;
<a name="l00198"></a>00198          <a class="codeRef" doxygen="kdecore.tag:../../kdecore/html/" href="../../kdecore/html/classKGlobalSettings.html#e0">KGlobalSettings::dndEventDelay</a>() )
<a name="l00199"></a>00199     {
<a name="l00200"></a>00200         <a class="code" href="classKPushButton.html#b3">startDrag</a>();
<a name="l00201"></a>00201         <a class="codeRef" doxygen="qt.tag:" href="qpushbutton.html#setDown">setDown</a>( <span class="keyword">false</span> );
<a name="l00202"></a>00202     }
<a name="l00203"></a>00203 }
<a name="l00204"></a>00204 
<a name="l00205"></a><a class="code" href="classKPushButton.html#b0">00205</a> <a class="codeRef" doxygen="qt.tag:" href="qdragobject.html">QDragObject</a> * <a class="code" href="classKPushButton.html#b0">KPushButton::dragObject</a>()
<a name="l00206"></a>00206 {
<a name="l00207"></a>00207     <span class="keywordflow">return</span> 0L;
<a name="l00208"></a>00208 }
<a name="l00209"></a>00209 
<a name="l00210"></a><a class="code" href="classKPushButton.html#b3">00210</a> <span class="keywordtype">void</span> <a class="code" href="classKPushButton.html#b3">KPushButton::startDrag</a>()
<a name="l00211"></a>00211 {
<a name="l00212"></a>00212     <a class="codeRef" doxygen="qt.tag:" href="qdragobject.html">QDragObject</a> *d = <a class="code" href="classKPushButton.html#b0">dragObject</a>();
<a name="l00213"></a>00213     <span class="keywordflow">if</span> ( d )
<a name="l00214"></a>00214     d-&gt;<a class="codeRef" doxygen="qt.tag:" href="qdragobject.html#dragCopy">dragCopy</a>();
<a name="l00215"></a>00215 }
<a name="l00216"></a>00216 
<a name="l00217"></a><a class="code" href="classKPushButton.html#b4">00217</a> <span class="keywordtype">void</span> <a class="code" href="classKPushButton.html#b4">KPushButton::virtual_hook</a>( <span class="keywordtype">int</span>, <span class="keywordtype">void</span>* )
<a name="l00218"></a>00218 { <span class="comment">/*BASE::virtual_hook( id, data );*/</span> }
<a name="l00219"></a>00219 
<a name="l00220"></a>00220 <span class="preprocessor">#include "kpushbutton.moc"</span>
</pre></div>    </div></div>


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