<?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>kalarm/lib: spinbox.cpp Source File (kalarm/lib)</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" /> <style type="text/css"> <!-- hr { display: none; } #content h2 { margin-left: 0px; } table.mdTable { background-color: #f8f8f8; border: .2em solid #d7d7d7; } td.mdRow { padding: 8px 20px; } td.md { font-weight: bold; } td.mdname1 { font-weight: bold; color: #602020; } td.mdname { font-weight: bold; color: #602020; } --> </style> </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> <img id="nav_header_logo_right" alt="" align="right" src="../../../pimlogo.png" border="0" /> <div id="nav_header_title" align="left">KDE PIM 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_left" style="text-align: left;"> / <a href="../../../">API Reference</a> / <a href="../../html/index.html">kalarm</a> / <a href=".">lib</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;"> <h2><a name="content"></a>kalarm/lib</h2> <!-- Generated by Doxygen 1.5.5 --> <h1>spinbox.cpp</h1><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">/*</span> <a name="l00002"></a>00002 <span class="comment"> * spinbox.cpp - spin box with read-only option and shift-click step value</span> <a name="l00003"></a>00003 <span class="comment"> * Program: kalarm</span> <a name="l00004"></a>00004 <span class="comment"> * Copyright (C) 2002, 2004 by David Jarvie <software@astrojar.org.uk></span> <a name="l00005"></a>00005 <span class="comment"> *</span> <a name="l00006"></a>00006 <span class="comment"> * This program is free software; you can redistribute it and/or modify</span> <a name="l00007"></a>00007 <span class="comment"> * it under the terms of the GNU General Public License as published by</span> <a name="l00008"></a>00008 <span class="comment"> * the Free Software Foundation; either version 2 of the License, or</span> <a name="l00009"></a>00009 <span class="comment"> * (at your option) any later version.</span> <a name="l00010"></a>00010 <span class="comment"> *</span> <a name="l00011"></a>00011 <span class="comment"> * This program is distributed in the hope that it will be useful,</span> <a name="l00012"></a>00012 <span class="comment"> * but WITHOUT ANY WARRANTY; without even the implied warranty of</span> <a name="l00013"></a>00013 <span class="comment"> * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the</span> <a name="l00014"></a>00014 <span class="comment"> * GNU General Public License for more details.</span> <a name="l00015"></a>00015 <span class="comment"> *</span> <a name="l00016"></a>00016 <span class="comment"> * You should have received a copy of the GNU General Public License along</span> <a name="l00017"></a>00017 <span class="comment"> * with this program; if not, write to the Free Software Foundation, Inc.,</span> <a name="l00018"></a>00018 <span class="comment"> * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.</span> <a name="l00019"></a>00019 <span class="comment"> */</span> <a name="l00020"></a>00020 <a name="l00021"></a>00021 <span class="preprocessor">#include <kdeversion.h></span> <a name="l00022"></a>00022 <span class="preprocessor">#include <qlineedit.h></span> <a name="l00023"></a>00023 <span class="preprocessor">#include <qobjectlist.h></span> <a name="l00024"></a>00024 <span class="preprocessor">#include "spinbox.moc"</span> <a name="l00025"></a>00025 <a name="l00026"></a>00026 <a name="l00027"></a><a class="code" href="classSpinBox.html#dcb1359a372e53bafa288fc3097d04a9">00027</a> <a class="code" href="classSpinBox.html#dcb1359a372e53bafa288fc3097d04a9" title="Constructor.">SpinBox::SpinBox</a>(QWidget* parent, <span class="keyword">const</span> <span class="keywordtype">char</span>* name) <a name="l00028"></a>00028 : QSpinBox(0, 99999, 1, parent, name), <a name="l00029"></a>00029 mMinValue(QSpinBox::minValue()), <a name="l00030"></a>00030 mMaxValue(QSpinBox::maxValue()) <a name="l00031"></a>00031 { <a name="l00032"></a>00032 init(); <a name="l00033"></a>00033 } <a name="l00034"></a>00034 <a name="l00035"></a><a class="code" href="classSpinBox.html#48fe567c2b3cdf0aac6b256e9e68dc0d">00035</a> <a class="code" href="classSpinBox.html#dcb1359a372e53bafa288fc3097d04a9" title="Constructor.">SpinBox::SpinBox</a>(<span class="keywordtype">int</span> <a class="code" href="classSpinBox.html#553f40b27405c2728f27c1d4d4c5fc28" title="Returns the minimum value of the spin box.">minValue</a>, <span class="keywordtype">int</span> <a class="code" href="classSpinBox.html#196e47ff94596c99471fd4e4ed79c53c" title="Returns the maximum value of the spin box.">maxValue</a>, <span class="keywordtype">int</span> step, QWidget* parent, <span class="keyword">const</span> <span class="keywordtype">char</span>* name) <a name="l00036"></a>00036 : QSpinBox(minValue, maxValue, step, parent, name), <a name="l00037"></a>00037 mMinValue(minValue), <a name="l00038"></a>00038 mMaxValue(maxValue) <a name="l00039"></a>00039 { <a name="l00040"></a>00040 init(); <a name="l00041"></a>00041 } <a name="l00042"></a>00042 <a name="l00043"></a>00043 <span class="keywordtype">void</span> SpinBox::init() <a name="l00044"></a>00044 { <a name="l00045"></a>00045 <span class="keywordtype">int</span> step = QSpinBox::lineStep(); <a name="l00046"></a>00046 mLineStep = step; <a name="l00047"></a>00047 mLineShiftStep = step; <a name="l00048"></a>00048 mCurrentButton = NO_BUTTON; <a name="l00049"></a>00049 mShiftMouse = <span class="keyword">false</span>; <a name="l00050"></a>00050 mShiftMinBound = <span class="keyword">false</span>; <a name="l00051"></a>00051 mShiftMaxBound = <span class="keyword">false</span>; <a name="l00052"></a>00052 mSelectOnStep = <span class="keyword">true</span>; <a name="l00053"></a>00053 mReadOnly = <span class="keyword">false</span>; <a name="l00054"></a>00054 mSuppressSignals = <span class="keyword">false</span>; <a name="l00055"></a>00055 mEdited = <span class="keyword">false</span>; <a name="l00056"></a>00056 <a name="l00057"></a>00057 <span class="comment">// Find the spin widgets which are part of the spin boxes, in order to</span> <a name="l00058"></a>00058 <span class="comment">// handle their shift-button presses.</span> <a name="l00059"></a>00059 QObjectList* spinwidgets = queryList(<span class="stringliteral">"QSpinWidget"</span>, 0, <span class="keyword">false</span>, <span class="keyword">true</span>); <a name="l00060"></a>00060 QSpinWidget* spin = (QSpinWidget*)spinwidgets->getFirst(); <a name="l00061"></a>00061 <span class="keywordflow">if</span> (spin) <a name="l00062"></a>00062 spin->installEventFilter(<span class="keyword">this</span>); <span class="comment">// handle shift-button presses</span> <a name="l00063"></a>00063 <span class="keyword">delete</span> spinwidgets; <a name="l00064"></a>00064 editor()->installEventFilter(<span class="keyword">this</span>); <span class="comment">// handle shift-up/down arrow presses</span> <a name="l00065"></a>00065 <a name="l00066"></a>00066 <span class="preprocessor">#if KDE_IS_VERSION(3,1,90)</span> <a name="l00067"></a>00067 <span class="preprocessor"></span> <span class="comment">// Detect when the text field is edited</span> <a name="l00068"></a>00068 connect(editor(), SIGNAL(textChanged(<span class="keyword">const</span> QString&)), SLOT(textEdited())); <a name="l00069"></a>00069 <span class="preprocessor">#endif</span> <a name="l00070"></a>00070 <span class="preprocessor"></span>} <a name="l00071"></a>00071 <a name="l00072"></a><a class="code" href="classSpinBox.html#3a26b2abea7b8a959654fde1c680a41b">00072</a> <span class="keywordtype">void</span> <a class="code" href="classSpinBox.html#3a26b2abea7b8a959654fde1c680a41b" title="Sets whether the spin box can be changed by the user.">SpinBox::setReadOnly</a>(<span class="keywordtype">bool</span> ro) <a name="l00073"></a>00073 { <a name="l00074"></a>00074 <span class="keywordflow">if</span> ((<span class="keywordtype">int</span>)ro != (<span class="keywordtype">int</span>)mReadOnly) <a name="l00075"></a>00075 { <a name="l00076"></a>00076 mReadOnly = ro; <a name="l00077"></a>00077 editor()->setReadOnly(ro); <a name="l00078"></a>00078 <span class="keywordflow">if</span> (ro) <a name="l00079"></a>00079 setShiftStepping(<span class="keyword">false</span>); <a name="l00080"></a>00080 } <a name="l00081"></a>00081 } <a name="l00082"></a>00082 <a name="l00083"></a><a class="code" href="classSpinBox.html#f181fb172bd12aa10bf9e2d31c713bf3">00083</a> <span class="keywordtype">int</span> <a class="code" href="classSpinBox.html#f181fb172bd12aa10bf9e2d31c713bf3" title="Returns the specified value clamped to the range of the spin box.">SpinBox::bound</a>(<span class="keywordtype">int</span> val)<span class="keyword"> const</span> <a name="l00084"></a>00084 <span class="keyword"></span>{ <a name="l00085"></a>00085 <span class="keywordflow">return</span> (val < mMinValue) ? mMinValue : (val > mMaxValue) ? mMaxValue : val; <a name="l00086"></a>00086 } <a name="l00087"></a>00087 <a name="l00088"></a><a class="code" href="classSpinBox.html#3f6a1cc90f0a30b36f5d298b04946bab">00088</a> <span class="keywordtype">void</span> <a class="code" href="classSpinBox.html#3f6a1cc90f0a30b36f5d298b04946bab" title="Sets the minimum value of the spin box.">SpinBox::setMinValue</a>(<span class="keywordtype">int</span> val) <a name="l00089"></a>00089 { <a name="l00090"></a>00090 mMinValue = val; <a name="l00091"></a>00091 QSpinBox::setMinValue(val); <a name="l00092"></a>00092 mShiftMinBound = <span class="keyword">false</span>; <a name="l00093"></a>00093 } <a name="l00094"></a>00094 <a name="l00095"></a><a class="code" href="classSpinBox.html#ced890cbf5c79918666ddd8b64ab881f">00095</a> <span class="keywordtype">void</span> <a class="code" href="classSpinBox.html#ced890cbf5c79918666ddd8b64ab881f" title="Sets the maximum value of the spin box.">SpinBox::setMaxValue</a>(<span class="keywordtype">int</span> val) <a name="l00096"></a>00096 { <a name="l00097"></a>00097 mMaxValue = val; <a name="l00098"></a>00098 QSpinBox::setMaxValue(val); <a name="l00099"></a>00099 mShiftMaxBound = <span class="keyword">false</span>; <a name="l00100"></a>00100 } <a name="l00101"></a>00101 <a name="l00102"></a><a class="code" href="classSpinBox.html#888b8e243d35a890370cda29441219cb">00102</a> <span class="keywordtype">void</span> <a class="code" href="classSpinBox.html#888b8e243d35a890370cda29441219cb" title="Sets the unshifted step increment, i.e.">SpinBox::setLineStep</a>(<span class="keywordtype">int</span> step) <a name="l00103"></a>00103 { <a name="l00104"></a>00104 mLineStep = step; <a name="l00105"></a>00105 <span class="keywordflow">if</span> (!mShiftMouse) <a name="l00106"></a>00106 QSpinBox::setLineStep(step); <a name="l00107"></a>00107 } <a name="l00108"></a>00108 <a name="l00109"></a><a class="code" href="classSpinBox.html#22475e965f4dd740445a691fdb996015">00109</a> <span class="keywordtype">void</span> <a class="code" href="classSpinBox.html#22475e965f4dd740445a691fdb996015" title="Sets the shifted step increment, i.e.">SpinBox::setLineShiftStep</a>(<span class="keywordtype">int</span> step) <a name="l00110"></a>00110 { <a name="l00111"></a>00111 mLineShiftStep = step; <a name="l00112"></a>00112 <span class="keywordflow">if</span> (mShiftMouse) <a name="l00113"></a>00113 QSpinBox::setLineStep(step); <a name="l00114"></a>00114 } <a name="l00115"></a>00115 <a name="l00116"></a><a class="code" href="classSpinBox.html#5493937a6feff7bc2f210de8fb7b123b">00116</a> <span class="keywordtype">void</span> <a class="code" href="classSpinBox.html#5493937a6feff7bc2f210de8fb7b123b" title="Increments the value of the spin box by the unshifted step increment.">SpinBox::stepUp</a>() <a name="l00117"></a>00117 { <a name="l00118"></a>00118 <span class="keywordtype">int</span> step = QSpinBox::lineStep(); <a name="l00119"></a>00119 <a class="code" href="classSpinBox.html#ad8d9b8b50135ad0b7962b9b7282a454" title="Adds a value to the current value of the spin box.">addValue</a>(step); <a name="l00120"></a>00120 emit <a class="code" href="classSpinBox.html#1b4a69165f170190f347a5af23719953" title="Signal emitted when the spin box&#39;s value is stepped (by the shifted or unshifted...">stepped</a>(step); <a name="l00121"></a>00121 } <a name="l00122"></a>00122 <a name="l00123"></a><a class="code" href="classSpinBox.html#c1617da27eb80d128df0494af817847f">00123</a> <span class="keywordtype">void</span> <a class="code" href="classSpinBox.html#c1617da27eb80d128df0494af817847f" title="Decrements the value of the spin box by the unshifted step increment.">SpinBox::stepDown</a>() <a name="l00124"></a>00124 { <a name="l00125"></a>00125 <span class="keywordtype">int</span> step = -QSpinBox::lineStep(); <a name="l00126"></a>00126 <a class="code" href="classSpinBox.html#ad8d9b8b50135ad0b7962b9b7282a454" title="Adds a value to the current value of the spin box.">addValue</a>(step); <a name="l00127"></a>00127 emit <a class="code" href="classSpinBox.html#1b4a69165f170190f347a5af23719953" title="Signal emitted when the spin box&#39;s value is stepped (by the shifted or unshifted...">stepped</a>(step); <a name="l00128"></a>00128 } <a name="l00129"></a>00129 <a name="l00130"></a>00130 <span class="comment">/******************************************************************************</span> <a name="l00131"></a>00131 <span class="comment">* Adds a positive or negative increment to the current value, wrapping as appropriate.</span> <a name="l00132"></a>00132 <span class="comment">* If 'current' is true, any temporary 'shift' values for the range are used instead</span> <a name="l00133"></a>00133 <span class="comment">* of the real maximum and minimum values.</span> <a name="l00134"></a>00134 <span class="comment">*/</span> <a name="l00135"></a>00135 <span class="keywordtype">void</span> <a class="code" href="classSpinBox.html#ad8d9b8b50135ad0b7962b9b7282a454" title="Adds a value to the current value of the spin box.">SpinBox::addValue</a>(<span class="keywordtype">int</span> change, <span class="keywordtype">bool</span> current) <a name="l00136"></a>00136 { <a name="l00137"></a>00137 <span class="keywordtype">int</span> newval = value() + change; <a name="l00138"></a>00138 <span class="keywordtype">int</span> maxval = current ? QSpinBox::maxValue() : mMaxValue; <a name="l00139"></a>00139 <span class="keywordtype">int</span> minval = current ? QSpinBox::minValue() : mMinValue; <a name="l00140"></a>00140 <span class="keywordflow">if</span> (wrapping()) <a name="l00141"></a>00141 { <a name="l00142"></a>00142 <span class="keywordtype">int</span> range = maxval - minval + 1; <a name="l00143"></a>00143 <span class="keywordflow">if</span> (newval > maxval) <a name="l00144"></a>00144 newval = minval + (newval - maxval - 1) % range; <a name="l00145"></a>00145 <span class="keywordflow">else</span> <span class="keywordflow">if</span> (newval < minval) <a name="l00146"></a>00146 newval = maxval - (minval - 1 - newval) % range; <a name="l00147"></a>00147 } <a name="l00148"></a>00148 <span class="keywordflow">else</span> <a name="l00149"></a>00149 { <a name="l00150"></a>00150 <span class="keywordflow">if</span> (newval > maxval) <a name="l00151"></a>00151 newval = maxval; <a name="l00152"></a>00152 <span class="keywordflow">else</span> <span class="keywordflow">if</span> (newval < minval) <a name="l00153"></a>00153 newval = minval; <a name="l00154"></a>00154 } <a name="l00155"></a>00155 setValue(newval); <a name="l00156"></a>00156 } <a name="l00157"></a>00157 <a name="l00158"></a><a class="code" href="classSpinBox.html#06caba410f04dcca36f2a63786d5f187">00158</a> <span class="keywordtype">void</span> <a class="code" href="classSpinBox.html#06caba410f04dcca36f2a63786d5f187" title="A virtual method called whenever the value of the spin box has changed.">SpinBox::valueChange</a>() <a name="l00159"></a>00159 { <a name="l00160"></a>00160 <span class="keywordflow">if</span> (!mSuppressSignals) <a name="l00161"></a>00161 { <a name="l00162"></a>00162 <span class="keywordtype">int</span> val = value(); <a name="l00163"></a>00163 <span class="keywordflow">if</span> (mShiftMinBound && val >= mMinValue) <a name="l00164"></a>00164 { <a name="l00165"></a>00165 <span class="comment">// Reinstate the minimum bound now that the value has returned to the normal range.</span> <a name="l00166"></a>00166 QSpinBox::setMinValue(mMinValue); <a name="l00167"></a>00167 mShiftMinBound = <span class="keyword">false</span>; <a name="l00168"></a>00168 } <a name="l00169"></a>00169 <span class="keywordflow">if</span> (mShiftMaxBound && val <= mMaxValue) <a name="l00170"></a>00170 { <a name="l00171"></a>00171 <span class="comment">// Reinstate the maximum bound now that the value has returned to the normal range.</span> <a name="l00172"></a>00172 QSpinBox::setMaxValue(mMaxValue); <a name="l00173"></a>00173 mShiftMaxBound = <span class="keyword">false</span>; <a name="l00174"></a>00174 } <a name="l00175"></a>00175 <a name="l00176"></a>00176 <span class="keywordtype">bool</span> focus = !mSelectOnStep && hasFocus(); <a name="l00177"></a>00177 <span class="keywordflow">if</span> (focus) <a name="l00178"></a>00178 clearFocus(); <span class="comment">// prevent selection of the spin box text</span> <a name="l00179"></a>00179 QSpinBox::valueChange(); <a name="l00180"></a>00180 <span class="keywordflow">if</span> (focus) <a name="l00181"></a>00181 setFocus(); <a name="l00182"></a>00182 } <a name="l00183"></a>00183 } <a name="l00184"></a>00184 <a name="l00185"></a>00185 <span class="comment">/******************************************************************************</span> <a name="l00186"></a>00186 <span class="comment">* Called whenever the line edit text is changed.</span> <a name="l00187"></a>00187 <span class="comment">*/</span> <a name="l00188"></a>00188 <span class="keywordtype">void</span> SpinBox::textEdited() <a name="l00189"></a>00189 { <a name="l00190"></a>00190 mEdited = <span class="keyword">true</span>; <a name="l00191"></a>00191 } <a name="l00192"></a>00192 <a name="l00193"></a><a class="code" href="classSpinBox.html#fbfa83f25dbc2781ce8d9d2903062901">00193</a> <span class="keywordtype">void</span> <a class="code" href="classSpinBox.html#fbfa83f25dbc2781ce8d9d2903062901" title="Updates the contents of the embedded QLineEdit to reflect the current value using...">SpinBox::updateDisplay</a>() <a name="l00194"></a>00194 { <a name="l00195"></a>00195 mEdited = <span class="keyword">false</span>; <a name="l00196"></a>00196 QSpinBox::updateDisplay(); <a name="l00197"></a>00197 } <a name="l00198"></a>00198 <a name="l00199"></a>00199 <span class="comment">/******************************************************************************</span> <a name="l00200"></a>00200 <span class="comment">* Receives events destined for the spin widget or for the edit field.</span> <a name="l00201"></a>00201 <span class="comment">*/</span> <a name="l00202"></a><a class="code" href="classSpinBox.html#bcdea0118863d966f0e11fb09df5d69d">00202</a> <span class="keywordtype">bool</span> <a class="code" href="classSpinBox.html#bcdea0118863d966f0e11fb09df5d69d" title="Receives events destined for the spin widget or for the edit field.">SpinBox::eventFilter</a>(QObject* obj, QEvent* e) <a name="l00203"></a>00203 { <a name="l00204"></a>00204 <span class="keywordflow">if</span> (obj == editor()) <a name="l00205"></a>00205 { <a name="l00206"></a>00206 <span class="keywordflow">if</span> (e->type() == QEvent::KeyPress) <a name="l00207"></a>00207 { <a name="l00208"></a>00208 <span class="comment">// Up and down arrow keys step the value</span> <a name="l00209"></a>00209 QKeyEvent* ke = (QKeyEvent*)e; <a name="l00210"></a>00210 <span class="keywordtype">int</span> key = ke->key(); <a name="l00211"></a>00211 <span class="keywordflow">if</span> (key == Qt::Key_Up || key == Qt::Key_Down) <a name="l00212"></a>00212 { <a name="l00213"></a>00213 <span class="keywordflow">if</span> (mReadOnly) <a name="l00214"></a>00214 <span class="keywordflow">return</span> <span class="keyword">true</span>; <span class="comment">// discard up/down arrow keys</span> <a name="l00215"></a>00215 <span class="keywordtype">int</span> step; <a name="l00216"></a>00216 <span class="keywordflow">if</span> ((ke->state() & (Qt::ShiftButton | Qt::AltButton)) == Qt::ShiftButton) <a name="l00217"></a>00217 { <a name="l00218"></a>00218 <span class="comment">// Shift stepping</span> <a name="l00219"></a>00219 <span class="keywordtype">int</span> val = value(); <a name="l00220"></a>00220 <span class="keywordflow">if</span> (key == Qt::Key_Up) <a name="l00221"></a>00221 step = mLineShiftStep - val % mLineShiftStep; <a name="l00222"></a>00222 <span class="keywordflow">else</span> <a name="l00223"></a>00223 step = - ((val + mLineShiftStep - 1) % mLineShiftStep + 1); <a name="l00224"></a>00224 } <a name="l00225"></a>00225 <span class="keywordflow">else</span> <a name="l00226"></a>00226 step = (key == Qt::Key_Up) ? mLineStep : -mLineStep; <a name="l00227"></a>00227 <a class="code" href="classSpinBox.html#ad8d9b8b50135ad0b7962b9b7282a454" title="Adds a value to the current value of the spin box.">addValue</a>(step, <span class="keyword">false</span>); <a name="l00228"></a>00228 <span class="keywordflow">return</span> <span class="keyword">true</span>; <a name="l00229"></a>00229 } <a name="l00230"></a>00230 } <a name="l00231"></a>00231 <span class="preprocessor">#if KDE_IS_VERSION(3,1,90)</span> <a name="l00232"></a>00232 <span class="preprocessor"></span> <span class="keywordflow">else</span> <span class="keywordflow">if</span> (e->type() == QEvent::Leave) <a name="l00233"></a>00233 { <a name="l00234"></a>00234 <span class="keywordflow">if</span> (mEdited) <a name="l00235"></a>00235 interpretText(); <a name="l00236"></a>00236 } <a name="l00237"></a>00237 <span class="preprocessor">#endif</span> <a name="l00238"></a>00238 <span class="preprocessor"></span> } <a name="l00239"></a>00239 <span class="keywordflow">else</span> <a name="l00240"></a>00240 { <a name="l00241"></a>00241 <span class="keywordtype">int</span> etype = e->type(); <span class="comment">// avoid switch compile warnings</span> <a name="l00242"></a>00242 <span class="keywordflow">switch</span> (etype) <a name="l00243"></a>00243 { <a name="l00244"></a>00244 <span class="keywordflow">case</span> QEvent::MouseButtonPress: <a name="l00245"></a>00245 <span class="keywordflow">case</span> QEvent::MouseButtonDblClick: <a name="l00246"></a>00246 { <a name="l00247"></a>00247 QMouseEvent* me = (QMouseEvent*)e; <a name="l00248"></a>00248 <span class="keywordflow">if</span> (me->button() == Qt::LeftButton) <a name="l00249"></a>00249 { <a name="l00250"></a>00250 <span class="comment">// It's a left button press. Set normal or shift stepping as appropriate.</span> <a name="l00251"></a>00251 <span class="keywordflow">if</span> (mReadOnly) <a name="l00252"></a>00252 <span class="keywordflow">return</span> <span class="keyword">true</span>; <span class="comment">// discard the event</span> <a name="l00253"></a>00253 mCurrentButton = whichButton(me->pos()); <a name="l00254"></a>00254 <span class="keywordflow">if</span> (mCurrentButton == NO_BUTTON) <a name="l00255"></a>00255 <span class="keywordflow">return</span> <span class="keyword">true</span>; <a name="l00256"></a>00256 <span class="keywordtype">bool</span> shift = (me->state() & (Qt::ShiftButton | Qt::AltButton)) == Qt::ShiftButton; <a name="l00257"></a>00257 <span class="keywordflow">if</span> (setShiftStepping(shift)) <a name="l00258"></a>00258 <span class="keywordflow">return</span> <span class="keyword">true</span>; <span class="comment">// hide the event from the spin widget</span> <a name="l00259"></a>00259 <span class="keywordflow">return</span> <span class="keyword">false</span>; <span class="comment">// forward event to the destination widget</span> <a name="l00260"></a>00260 } <a name="l00261"></a>00261 <span class="keywordflow">break</span>; <a name="l00262"></a>00262 } <a name="l00263"></a>00263 <span class="keywordflow">case</span> QEvent::MouseButtonRelease: <a name="l00264"></a>00264 { <a name="l00265"></a>00265 QMouseEvent* me = (QMouseEvent*)e; <a name="l00266"></a>00266 <span class="keywordflow">if</span> (me->button() == Qt::LeftButton && mShiftMouse) <a name="l00267"></a>00267 { <a name="l00268"></a>00268 setShiftStepping(<span class="keyword">false</span>); <span class="comment">// cancel shift stepping</span> <a name="l00269"></a>00269 <span class="keywordflow">return</span> <span class="keyword">false</span>; <span class="comment">// forward event to the destination widget</span> <a name="l00270"></a>00270 } <a name="l00271"></a>00271 <span class="keywordflow">break</span>; <a name="l00272"></a>00272 } <a name="l00273"></a>00273 <span class="keywordflow">case</span> QEvent::MouseMove: <a name="l00274"></a>00274 { <a name="l00275"></a>00275 QMouseEvent* me = (QMouseEvent*)e; <a name="l00276"></a>00276 <span class="keywordflow">if</span> (me->state() & Qt::LeftButton) <a name="l00277"></a>00277 { <a name="l00278"></a>00278 <span class="comment">// The left button is down. Track which spin button it's in.</span> <a name="l00279"></a>00279 <span class="keywordflow">if</span> (mReadOnly) <a name="l00280"></a>00280 <span class="keywordflow">return</span> <span class="keyword">true</span>; <span class="comment">// discard the event</span> <a name="l00281"></a>00281 <span class="keywordtype">int</span> newButton = whichButton(me->pos()); <a name="l00282"></a>00282 <span class="keywordflow">if</span> (newButton != mCurrentButton) <a name="l00283"></a>00283 { <a name="l00284"></a>00284 <span class="comment">// The mouse has moved to a new spin button.</span> <a name="l00285"></a>00285 <span class="comment">// Set normal or shift stepping as appropriate.</span> <a name="l00286"></a>00286 mCurrentButton = newButton; <a name="l00287"></a>00287 <span class="keywordtype">bool</span> shift = (me->state() & (Qt::ShiftButton | Qt::AltButton)) == Qt::ShiftButton; <a name="l00288"></a>00288 <span class="keywordflow">if</span> (setShiftStepping(shift)) <a name="l00289"></a>00289 <span class="keywordflow">return</span> <span class="keyword">true</span>; <span class="comment">// hide the event from the spin widget</span> <a name="l00290"></a>00290 } <a name="l00291"></a>00291 <span class="keywordflow">return</span> <span class="keyword">false</span>; <span class="comment">// forward event to the destination widget</span> <a name="l00292"></a>00292 } <a name="l00293"></a>00293 <span class="keywordflow">break</span>; <a name="l00294"></a>00294 } <a name="l00295"></a>00295 <span class="keywordflow">case</span> QEvent::KeyPress: <a name="l00296"></a>00296 <span class="keywordflow">case</span> QEvent::KeyRelease: <a name="l00297"></a>00297 <span class="keywordflow">case</span> QEvent::AccelOverride: <span class="comment">// this is needed to receive Shift presses!</span> <a name="l00298"></a>00298 { <a name="l00299"></a>00299 QKeyEvent* ke = (QKeyEvent*)e; <a name="l00300"></a>00300 <span class="keywordtype">int</span> key = ke->key(); <a name="l00301"></a>00301 <span class="keywordtype">int</span> state = ke->state(); <a name="l00302"></a>00302 <span class="keywordflow">if</span> ((state & Qt::LeftButton) <a name="l00303"></a>00303 && (key == Qt::Key_Shift || key == Qt::Key_Alt)) <a name="l00304"></a>00304 { <a name="l00305"></a>00305 <span class="comment">// The left mouse button is down, and the Shift or Alt key has changed</span> <a name="l00306"></a>00306 <span class="keywordflow">if</span> (mReadOnly) <a name="l00307"></a>00307 <span class="keywordflow">return</span> <span class="keyword">true</span>; <span class="comment">// discard the event</span> <a name="l00308"></a>00308 state ^= (key == Qt::Key_Shift) ? Qt::ShiftButton : Qt::AltButton; <span class="comment">// new state</span> <a name="l00309"></a>00309 <span class="keywordtype">bool</span> shift = (state & (Qt::ShiftButton | Qt::AltButton)) == Qt::ShiftButton; <a name="l00310"></a>00310 <span class="keywordflow">if</span> (!shift && mShiftMouse || shift && !mShiftMouse) <a name="l00311"></a>00311 { <a name="l00312"></a>00312 <span class="comment">// The effective shift state has changed.</span> <a name="l00313"></a>00313 <span class="comment">// Set normal or shift stepping as appropriate.</span> <a name="l00314"></a>00314 <span class="keywordflow">if</span> (setShiftStepping(shift)) <a name="l00315"></a>00315 <span class="keywordflow">return</span> <span class="keyword">true</span>; <span class="comment">// hide the event from the spin widget</span> <a name="l00316"></a>00316 } <a name="l00317"></a>00317 } <a name="l00318"></a>00318 <span class="keywordflow">break</span>; <a name="l00319"></a>00319 } <a name="l00320"></a>00320 } <a name="l00321"></a>00321 } <a name="l00322"></a>00322 <span class="keywordflow">return</span> QSpinBox::eventFilter(obj, e); <a name="l00323"></a>00323 } <a name="l00324"></a>00324 <a name="l00325"></a>00325 <span class="comment">/******************************************************************************</span> <a name="l00326"></a>00326 <span class="comment">* Set spin widget stepping to the normal or shift increment.</span> <a name="l00327"></a>00327 <span class="comment">*/</span> <a name="l00328"></a>00328 <span class="keywordtype">bool</span> SpinBox::setShiftStepping(<span class="keywordtype">bool</span> shift) <a name="l00329"></a>00329 { <a name="l00330"></a>00330 <span class="keywordflow">if</span> (mCurrentButton == NO_BUTTON) <a name="l00331"></a>00331 shift = <span class="keyword">false</span>; <a name="l00332"></a>00332 <span class="keywordflow">if</span> (shift && !mShiftMouse) <a name="l00333"></a>00333 { <a name="l00334"></a>00334 <span class="comment">/* The value is to be stepped to a multiple of the shift increment.</span> <a name="l00335"></a>00335 <span class="comment"> * Adjust the value so that after the spin widget steps it, it will be correct.</span> <a name="l00336"></a>00336 <span class="comment"> * Then, if the mouse button is held down, the spin widget will continue to</span> <a name="l00337"></a>00337 <span class="comment"> * step by the shift amount.</span> <a name="l00338"></a>00338 <span class="comment"> */</span> <a name="l00339"></a>00339 <span class="keywordtype">int</span> val = value(); <a name="l00340"></a>00340 <span class="keywordtype">int</span> step = (mCurrentButton == UP) ? mLineShiftStep : (mCurrentButton == DOWN) ? -mLineShiftStep : 0; <a name="l00341"></a>00341 <span class="keywordtype">int</span> adjust = <a class="code" href="classSpinBox.html#a7739d2b356775c869b4eea5f843f68d" title="Returns the initial adjustment to the value for a shift step up or down.">shiftStepAdjustment</a>(val, step); <a name="l00342"></a>00342 mShiftMouse = <span class="keyword">true</span>; <a name="l00343"></a>00343 <span class="keywordflow">if</span> (adjust) <a name="l00344"></a>00344 { <a name="l00345"></a>00345 <span class="comment">/* The value is to be stepped by other than the shift increment,</span> <a name="l00346"></a>00346 <span class="comment"> * presumably because it is being set to a multiple of the shift</span> <a name="l00347"></a>00347 <span class="comment"> * increment. Achieve this by making the adjustment here, and then</span> <a name="l00348"></a>00348 <span class="comment"> * allowing the normal step processing to complete the job by</span> <a name="l00349"></a>00349 <span class="comment"> * adding/subtracting the normal shift increment.</span> <a name="l00350"></a>00350 <span class="comment"> */</span> <a name="l00351"></a>00351 <span class="keywordflow">if</span> (!wrapping()) <a name="l00352"></a>00352 { <a name="l00353"></a>00353 <span class="comment">// Prevent the step from going past the spinbox's range, or</span> <a name="l00354"></a>00354 <span class="comment">// to the minimum value if that has a special text unless it is</span> <a name="l00355"></a>00355 <span class="comment">// already at the minimum value + 1.</span> <a name="l00356"></a>00356 <span class="keywordtype">int</span> newval = val + adjust + step; <a name="l00357"></a>00357 <span class="keywordtype">int</span> svt = specialValueText().isEmpty() ? 0 : 1; <a name="l00358"></a>00358 <span class="keywordtype">int</span> minval = mMinValue + svt; <a name="l00359"></a>00359 <span class="keywordflow">if</span> (newval <= minval || newval >= mMaxValue) <a name="l00360"></a>00360 { <a name="l00361"></a>00361 <span class="comment">// Stepping to the minimum or maximum value</span> <a name="l00362"></a>00362 <span class="keywordflow">if</span> (svt && newval <= mMinValue && val == mMinValue) <a name="l00363"></a>00363 newval = mMinValue; <a name="l00364"></a>00364 <span class="keywordflow">else</span> <a name="l00365"></a>00365 newval = (newval <= minval) ? minval : mMaxValue; <a name="l00366"></a>00366 QSpinBox::setValue(newval); <a name="l00367"></a>00367 emit <a class="code" href="classSpinBox.html#1b4a69165f170190f347a5af23719953" title="Signal emitted when the spin box&#39;s value is stepped (by the shifted or unshifted...">stepped</a>(step); <a name="l00368"></a>00368 <span class="keywordflow">return</span> <span class="keyword">true</span>; <a name="l00369"></a>00369 } <a name="l00370"></a>00370 <a name="l00371"></a>00371 <span class="comment">// If the interim value will lie outside the spinbox's range,</span> <a name="l00372"></a>00372 <span class="comment">// temporarily adjust the range to allow the value to be set.</span> <a name="l00373"></a>00373 <span class="keywordtype">int</span> tempval = val + adjust; <a name="l00374"></a>00374 <span class="keywordflow">if</span> (tempval < mMinValue) <a name="l00375"></a>00375 { <a name="l00376"></a>00376 QSpinBox::setMinValue(tempval); <a name="l00377"></a>00377 mShiftMinBound = <span class="keyword">true</span>; <a name="l00378"></a>00378 } <a name="l00379"></a>00379 <span class="keywordflow">else</span> <span class="keywordflow">if</span> (tempval > mMaxValue) <a name="l00380"></a>00380 { <a name="l00381"></a>00381 QSpinBox::setMaxValue(tempval); <a name="l00382"></a>00382 mShiftMaxBound = <span class="keyword">true</span>; <a name="l00383"></a>00383 } <a name="l00384"></a>00384 } <a name="l00385"></a>00385 <a name="l00386"></a>00386 <span class="comment">// Don't process changes since this new value will be stepped immediately</span> <a name="l00387"></a>00387 mSuppressSignals = <span class="keyword">true</span>; <a name="l00388"></a>00388 <span class="keywordtype">bool</span> blocked = signalsBlocked(); <a name="l00389"></a>00389 blockSignals(<span class="keyword">true</span>); <a name="l00390"></a>00390 <a class="code" href="classSpinBox.html#ad8d9b8b50135ad0b7962b9b7282a454" title="Adds a value to the current value of the spin box.">addValue</a>(adjust, <span class="keyword">true</span>); <a name="l00391"></a>00391 blockSignals(blocked); <a name="l00392"></a>00392 mSuppressSignals = <span class="keyword">false</span>; <a name="l00393"></a>00393 } <a name="l00394"></a>00394 QSpinBox::setLineStep(mLineShiftStep); <a name="l00395"></a>00395 } <a name="l00396"></a>00396 <span class="keywordflow">else</span> <span class="keywordflow">if</span> (!shift && mShiftMouse) <a name="l00397"></a>00397 { <a name="l00398"></a>00398 <span class="comment">// Reinstate to normal (non-shift) stepping</span> <a name="l00399"></a>00399 QSpinBox::setLineStep(mLineStep); <a name="l00400"></a>00400 QSpinBox::setMinValue(mMinValue); <a name="l00401"></a>00401 QSpinBox::setMaxValue(mMaxValue); <a name="l00402"></a>00402 mShiftMinBound = mShiftMaxBound = <span class="keyword">false</span>; <a name="l00403"></a>00403 mShiftMouse = <span class="keyword">false</span>; <a name="l00404"></a>00404 } <a name="l00405"></a>00405 <span class="keywordflow">return</span> <span class="keyword">false</span>; <a name="l00406"></a>00406 } <a name="l00407"></a>00407 <a name="l00408"></a>00408 <span class="comment">/******************************************************************************</span> <a name="l00409"></a>00409 <span class="comment">* Return the initial adjustment to the value for a shift step up or down.</span> <a name="l00410"></a>00410 <span class="comment">* The default is to step up or down to the nearest multiple of the shift</span> <a name="l00411"></a>00411 <span class="comment">* increment, so the adjustment returned is for stepping up the decrement</span> <a name="l00412"></a>00412 <span class="comment">* required to round down to a multiple of the shift increment <= current value,</span> <a name="l00413"></a>00413 <span class="comment">* or for stepping down the increment required to round up to a multiple of the</span> <a name="l00414"></a>00414 <span class="comment">* shift increment >= current value.</span> <a name="l00415"></a>00415 <span class="comment">* This method's caller then adjusts the resultant value if necessary to cater</span> <a name="l00416"></a>00416 <span class="comment">* for the widget's minimum/maximum value, and wrapping.</span> <a name="l00417"></a>00417 <span class="comment">* This should really be a static method, but it needs to be virtual...</span> <a name="l00418"></a>00418 <span class="comment">*/</span> <a name="l00419"></a><a class="code" href="classSpinBox.html#a7739d2b356775c869b4eea5f843f68d">00419</a> <span class="keywordtype">int</span> <a class="code" href="classSpinBox.html#a7739d2b356775c869b4eea5f843f68d" title="Returns the initial adjustment to the value for a shift step up or down.">SpinBox::shiftStepAdjustment</a>(<span class="keywordtype">int</span> oldValue, <span class="keywordtype">int</span> shiftStep) <a name="l00420"></a>00420 { <a name="l00421"></a>00421 <span class="keywordflow">if</span> (oldValue == 0 || shiftStep == 0) <a name="l00422"></a>00422 <span class="keywordflow">return</span> 0; <a name="l00423"></a>00423 <span class="keywordflow">if</span> (shiftStep > 0) <a name="l00424"></a>00424 { <a name="l00425"></a>00425 <span class="keywordflow">if</span> (oldValue >= 0) <a name="l00426"></a>00426 <span class="keywordflow">return</span> -(oldValue % shiftStep); <a name="l00427"></a>00427 <span class="keywordflow">else</span> <a name="l00428"></a>00428 <span class="keywordflow">return</span> (-oldValue - 1) % shiftStep + 1 - shiftStep; <a name="l00429"></a>00429 } <a name="l00430"></a>00430 <span class="keywordflow">else</span> <a name="l00431"></a>00431 { <a name="l00432"></a>00432 shiftStep = -shiftStep; <a name="l00433"></a>00433 <span class="keywordflow">if</span> (oldValue >= 0) <a name="l00434"></a>00434 <span class="keywordflow">return</span> shiftStep - ((oldValue - 1) % shiftStep + 1); <a name="l00435"></a>00435 <span class="keywordflow">else</span> <a name="l00436"></a>00436 <span class="keywordflow">return</span> (-oldValue) % shiftStep; <a name="l00437"></a>00437 } <a name="l00438"></a>00438 } <a name="l00439"></a>00439 <a name="l00440"></a>00440 <span class="comment">/******************************************************************************</span> <a name="l00441"></a>00441 <span class="comment">* Find which spin widget button a mouse event is in.</span> <a name="l00442"></a>00442 <span class="comment">*/</span> <a name="l00443"></a>00443 <span class="keywordtype">int</span> SpinBox::whichButton(<span class="keyword">const</span> QPoint& pos) <a name="l00444"></a>00444 { <a name="l00445"></a>00445 <span class="keywordflow">if</span> (upRect().contains(pos)) <a name="l00446"></a>00446 <span class="keywordflow">return</span> UP; <a name="l00447"></a>00447 <span class="keywordflow">if</span> (downRect().contains(pos)) <a name="l00448"></a>00448 <span class="keywordflow">return</span> DOWN; <a name="l00449"></a>00449 <span class="keywordflow">return</span> NO_BUTTON; <a name="l00450"></a>00450 } </pre></div></div> </div></div> </td> </tr> <tr> <td valign="top" id="leftmenu" width="25%"> <a name="navigation"></a> <div class="menu_box"><h2>kalarm/lib</h2> <div class="nav_list"> <ul><li><a href="index.html">Main Page</a></li><li><a href="hierarchy.html">Class Hierarchy</a></li><li><a href="classes.html">Alphabetical List</a></li><li><a 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