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<div class="title">marginpreview.cpp</div> </div>
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<div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">/*</span>
<a name="l00002"></a>00002 <span class="comment"> * This file is part of the KDE libraries</span>
<a name="l00003"></a>00003 <span class="comment"> * Copyright (c) 2001 Michael Goffioul <kdeprint@swing.be></span>
<a name="l00004"></a>00004 <span class="comment"> *</span>
<a name="l00005"></a>00005 <span class="comment"> * This library is free software; you can redistribute it and/or</span>
<a name="l00006"></a>00006 <span class="comment"> * modify it under the terms of the GNU Library General Public</span>
<a name="l00007"></a>00007 <span class="comment"> * License version 2 as published by the Free Software Foundation.</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 "marginpreview.h"</span>
<a name="l00021"></a>00021
<a name="l00022"></a>00022 <span class="preprocessor">#include <klocale.h></span>
<a name="l00023"></a>00023 <span class="preprocessor">#include <kdebug.h></span>
<a name="l00024"></a>00024 <span class="preprocessor">#include <qpainter.h></span>
<a name="l00025"></a>00025 <span class="preprocessor">#include <kcursor.h></span>
<a name="l00026"></a>00026
<a name="l00027"></a>00027 <span class="preprocessor">#define A4_WIDTH 595</span>
<a name="l00028"></a>00028 <span class="preprocessor"></span><span class="preprocessor">#define A4_HEIGHT 842</span>
<a name="l00029"></a>00029 <span class="preprocessor"></span><span class="preprocessor">#define A4_TOP 36</span>
<a name="l00030"></a>00030 <span class="preprocessor"></span><span class="preprocessor">#define A4_BOTTOM 806</span>
<a name="l00031"></a>00031 <span class="preprocessor"></span><span class="preprocessor">#define A4_LEFT 18</span>
<a name="l00032"></a>00032 <span class="preprocessor"></span><span class="preprocessor">#define A4_RIGHT 577</span>
<a name="l00033"></a>00033 <span class="preprocessor"></span>
<a name="l00034"></a>00034 <span class="preprocessor">#define SCALE(d,z) ((int)(float(d)*z+0.5))</span>
<a name="l00035"></a>00035 <span class="preprocessor"></span><span class="preprocessor">#define UNSCALE(d,z) ((int)(float(d)/z+0.5))</span>
<a name="l00036"></a>00036 <span class="preprocessor"></span>
<a name="l00037"></a>00037 <span class="keyword">static</span> <span class="keywordtype">void</span> draw3DPage(<a class="codeRef" href="qpainter.html">QPainter</a> *p, <a class="codeRef" href="qrect.html">QRect</a> r)
<a name="l00038"></a>00038 {
<a name="l00039"></a>00039 <span class="comment">// draw white page</span>
<a name="l00040"></a>00040 p-><a class="codeRef" href="qpainter.html#fillRect">fillRect</a>(r,Qt::white);
<a name="l00041"></a>00041 <span class="comment">// draw 3D border</span>
<a name="l00042"></a>00042 p-><a class="codeRef" href="qpainter.html#setPen">setPen</a>(Qt::black);
<a name="l00043"></a>00043 p-><a class="codeRef" href="qpainter.html#moveTo">moveTo</a>(r.<a class="codeRef" href="qrect.html#left">left</a>(),r.<a class="codeRef" href="qrect.html#bottom">bottom</a>());
<a name="l00044"></a>00044 p-><a class="codeRef" href="qpainter.html#lineTo">lineTo</a>(r.<a class="codeRef" href="qrect.html#right">right</a>(),r.<a class="codeRef" href="qrect.html#bottom">bottom</a>());
<a name="l00045"></a>00045 p-><a class="codeRef" href="qpainter.html#lineTo">lineTo</a>(r.<a class="codeRef" href="qrect.html#right">right</a>(),r.<a class="codeRef" href="qrect.html#top">top</a>());
<a name="l00046"></a>00046 p-><a class="codeRef" href="qpainter.html#setPen">setPen</a>(Qt::darkGray);
<a name="l00047"></a>00047 p-><a class="codeRef" href="qpainter.html#lineTo">lineTo</a>(r.<a class="codeRef" href="qrect.html#left">left</a>(),r.<a class="codeRef" href="qrect.html#top">top</a>());
<a name="l00048"></a>00048 p-><a class="codeRef" href="qpainter.html#lineTo">lineTo</a>(r.<a class="codeRef" href="qrect.html#left">left</a>(),r.<a class="codeRef" href="qrect.html#bottom">bottom</a>());
<a name="l00049"></a>00049 p-><a class="codeRef" href="qpainter.html#setPen">setPen</a>(Qt::gray);
<a name="l00050"></a>00050 p-><a class="codeRef" href="qpainter.html#moveTo">moveTo</a>(r.<a class="codeRef" href="qrect.html#left">left</a>()+1,r.<a class="codeRef" href="qrect.html#bottom">bottom</a>()-1);
<a name="l00051"></a>00051 p-><a class="codeRef" href="qpainter.html#lineTo">lineTo</a>(r.<a class="codeRef" href="qrect.html#right">right</a>()-1,r.<a class="codeRef" href="qrect.html#bottom">bottom</a>()-1);
<a name="l00052"></a>00052 p-><a class="codeRef" href="qpainter.html#lineTo">lineTo</a>(r.<a class="codeRef" href="qrect.html#right">right</a>()-1,r.<a class="codeRef" href="qrect.html#top">top</a>()+1);
<a name="l00053"></a>00053 }
<a name="l00054"></a>00054
<a name="l00055"></a>00055 MarginPreview::MarginPreview(<a class="codeRef" href="qwidget.html">QWidget</a> *parent, <span class="keyword">const</span> <span class="keywordtype">char</span> *name)
<a name="l00056"></a>00056 : <a class="codeRef" href="qwidget.html">QWidget</a>(parent,name)
<a name="l00057"></a>00057 {
<a name="l00058"></a>00058 width_ = A4_WIDTH;
<a name="l00059"></a>00059 height_ = A4_HEIGHT;
<a name="l00060"></a>00060 top_ = A4_TOP;
<a name="l00061"></a>00061 bottom_ = A4_BOTTOM;
<a name="l00062"></a>00062 left_ = A4_LEFT;
<a name="l00063"></a>00063 right_ = A4_RIGHT;
<a name="l00064"></a>00064 nopreview_ = <span class="keyword">false</span>;
<a name="l00065"></a>00065
<a name="l00066"></a>00066 box_ = rect();
<a name="l00067"></a>00067 zoom_ = 1.0;
<a name="l00068"></a>00068 state_ = Fixed;
<a name="l00069"></a>00069 oldpos_ = -1;
<a name="l00070"></a>00070 symetric_ = <span class="keyword">false</span>;
<a name="l00071"></a>00071
<a name="l00072"></a>00072 setMouseTracking(<span class="keyword">true</span>);
<a name="l00073"></a>00073 }
<a name="l00074"></a>00074
<a name="l00075"></a>00075 MarginPreview::~MarginPreview()
<a name="l00076"></a>00076 {
<a name="l00077"></a>00077 }
<a name="l00078"></a>00078
<a name="l00079"></a>00079 <span class="keywordtype">void</span> MarginPreview::setPageSize(<span class="keywordtype">float</span> w, <span class="keywordtype">float</span> h)
<a name="l00080"></a>00080 {
<a name="l00081"></a>00081 setNoPreview(w <= 0 && h <= 0);
<a name="l00082"></a>00082 <span class="comment">// do not change relative margins when changing page size !!</span>
<a name="l00083"></a>00083 <span class="keywordtype">float</span> old_b(height_-bottom_), old_r(width_-right_);
<a name="l00084"></a>00084 width_ = w;
<a name="l00085"></a>00085 height_ = h;
<a name="l00086"></a>00086 resizeEvent(NULL);
<a name="l00087"></a>00087 setMargins(top_,old_b,left_,old_r);
<a name="l00088"></a>00088 update();
<a name="l00089"></a>00089 }
<a name="l00090"></a>00090
<a name="l00091"></a>00091 <span class="keywordtype">void</span> MarginPreview::setMargins(<span class="keywordtype">float</span> t, <span class="keywordtype">float</span> b, <span class="keywordtype">float</span> l, <span class="keywordtype">float</span> r)
<a name="l00092"></a>00092 {
<a name="l00093"></a>00093 top_ = t;
<a name="l00094"></a>00094 left_ = l;
<a name="l00095"></a>00095 bottom_ = height_-b;
<a name="l00096"></a>00096 right_ = width_-r;
<a name="l00097"></a>00097 update();
<a name="l00098"></a>00098 }
<a name="l00099"></a>00099
<a name="l00100"></a>00100 <span class="keywordtype">void</span> MarginPreview::setSymetric(<span class="keywordtype">bool</span> on)
<a name="l00101"></a>00101 {
<a name="l00102"></a>00102 symetric_ = on;
<a name="l00103"></a>00103 }
<a name="l00104"></a>00104
<a name="l00105"></a>00105 <span class="keywordtype">void</span> MarginPreview::resizeEvent(<a class="codeRef" href="qresizeevent.html">QResizeEvent</a> *)
<a name="l00106"></a>00106 {
<a name="l00107"></a>00107 <span class="keywordflow">if</span> (width_/height_ > <span class="keywordtype">float</span>(width())/height())
<a name="l00108"></a>00108 {
<a name="l00109"></a>00109 zoom_ = float(width()-3)/width_;
<a name="l00110"></a>00110 box_.setLeft(1);
<a name="l00111"></a>00111 box_.setRight(width()-3);
<a name="l00112"></a>00112 <span class="keywordtype">int</span> m = (height()-3-SCALE(height_,zoom_))/2;
<a name="l00113"></a>00113 box_.setTop(m+1);
<a name="l00114"></a>00114 box_.setBottom(height()-m-3);
<a name="l00115"></a>00115 }
<a name="l00116"></a>00116 <span class="keywordflow">else</span>
<a name="l00117"></a>00117 {
<a name="l00118"></a>00118 zoom_ = float(height()-3)/height_;
<a name="l00119"></a>00119 box_.setTop(1);
<a name="l00120"></a>00120 box_.setBottom(height()-3);
<a name="l00121"></a>00121 <span class="keywordtype">int</span> m = (width()-3-SCALE(width_,zoom_))/2;
<a name="l00122"></a>00122 box_.setLeft(m+1);
<a name="l00123"></a>00123 box_.setRight(width()-m-3);
<a name="l00124"></a>00124 }
<a name="l00125"></a>00125 }
<a name="l00126"></a>00126
<a name="l00127"></a>00127 <span class="keywordtype">void</span> MarginPreview::paintEvent(<a class="codeRef" href="qpaintevent.html">QPaintEvent</a> *)
<a name="l00128"></a>00128 {
<a name="l00129"></a>00129 <a class="codeRef" href="qpainter.html">QPainter</a> p(<span class="keyword">this</span>);
<a name="l00130"></a>00130
<a name="l00131"></a>00131 <a class="codeRef" href="qrect.html">QRect</a> pagebox(<a class="codeRef" href="qpoint.html">QPoint</a>(box_.left()-1,box_.top()-1),<a class="codeRef" href="qpoint.html">QPoint</a>(box_.right()+2,box_.bottom()+2));
<a name="l00132"></a>00132
<a name="l00133"></a>00133 <span class="keywordflow">if</span> (nopreview_)
<a name="l00134"></a>00134 {
<a name="l00135"></a>00135 p.<a class="codeRef" href="qpainter.html#drawText">drawText</a>(pagebox,AlignCenter,i18n(<span class="stringliteral">"No preview available"</span>));
<a name="l00136"></a>00136 }
<a name="l00137"></a>00137 <span class="keywordflow">else</span>
<a name="l00138"></a>00138 {
<a name="l00139"></a>00139 draw3DPage(&p,pagebox);
<a name="l00140"></a>00140
<a name="l00141"></a>00141 <span class="comment">// draw margins</span>
<a name="l00142"></a>00142 p.<a class="codeRef" href="qpainter.html#setPen">setPen</a>(DotLine);
<a name="l00143"></a>00143 <span class="keywordtype">int</span> m = box_.left()+SCALE(left_,zoom_);
<a name="l00144"></a>00144 margbox_.setLeft(m+1);
<a name="l00145"></a>00145 p.<a class="codeRef" href="qpainter.html#drawLine">drawLine</a>(m,box_.top(),m,box_.bottom());
<a name="l00146"></a>00146 m = box_.left()+SCALE(right_,zoom_);
<a name="l00147"></a>00147 margbox_.setRight(m-1);
<a name="l00148"></a>00148 p.<a class="codeRef" href="qpainter.html#drawLine">drawLine</a>(m,box_.top(),m,box_.bottom());
<a name="l00149"></a>00149 m = box_.top()+SCALE(top_,zoom_);
<a name="l00150"></a>00150 margbox_.setTop(m+1);
<a name="l00151"></a>00151 p.<a class="codeRef" href="qpainter.html#drawLine">drawLine</a>(box_.left(),m,box_.right(),m);
<a name="l00152"></a>00152 m = box_.top()+SCALE(bottom_,zoom_);
<a name="l00153"></a>00153 margbox_.setBottom(m-1);
<a name="l00154"></a>00154 p.<a class="codeRef" href="qpainter.html#drawLine">drawLine</a>(box_.left(),m,box_.right(),m);
<a name="l00155"></a>00155
<a name="l00156"></a>00156 <span class="comment">// fill useful area</span>
<a name="l00157"></a>00157 p.<a class="codeRef" href="qpainter.html#fillRect">fillRect</a>(margbox_,<a class="codeRef" href="qcolor.html">QColor</a>(220,220,220));
<a name="l00158"></a>00158 }
<a name="l00159"></a>00159 }
<a name="l00160"></a>00160
<a name="l00161"></a>00161 <span class="keywordtype">void</span> MarginPreview::setNoPreview(<span class="keywordtype">bool</span> on)
<a name="l00162"></a>00162 {
<a name="l00163"></a>00163 nopreview_ = on;
<a name="l00164"></a>00164 update();
<a name="l00165"></a>00165 }
<a name="l00166"></a>00166
<a name="l00167"></a>00167 <span class="comment">// 0: nothing</span>
<a name="l00168"></a>00168 <span class="comment">// 1: top</span>
<a name="l00169"></a>00169 <span class="comment">// 2: bottom</span>
<a name="l00170"></a>00170 <span class="comment">// 3: left</span>
<a name="l00171"></a>00171 <span class="comment">// 4: right</span>
<a name="l00172"></a>00172 <span class="keywordtype">int</span> MarginPreview::locateMouse(<span class="keyword">const</span> <a class="codeRef" href="qpoint.html">QPoint</a>& p)
<a name="l00173"></a>00173 {
<a name="l00174"></a>00174 <span class="keywordtype">int</span> tol = 2;
<a name="l00175"></a>00175 <span class="keywordflow">if</span> (p.<a class="codeRef" href="qpoint.html#x">x</a>() <= margbox_.left()+tol && p.<a class="codeRef" href="qpoint.html#x">x</a>() >= margbox_.left()-tol)
<a name="l00176"></a>00176 <span class="keywordflow">return</span> LMoving;
<a name="l00177"></a>00177 <span class="keywordflow">else</span> <span class="keywordflow">if</span> (p.<a class="codeRef" href="qpoint.html#x">x</a>() <= margbox_.right()+tol && p.<a class="codeRef" href="qpoint.html#x">x</a>() >= margbox_.right()-tol)
<a name="l00178"></a>00178 <span class="keywordflow">return</span> RMoving;
<a name="l00179"></a>00179 <span class="keywordflow">else</span> <span class="keywordflow">if</span> (p.<a class="codeRef" href="qpoint.html#y">y</a>() <= margbox_.top()+tol && p.<a class="codeRef" href="qpoint.html#y">y</a>() >= margbox_.top()-tol)
<a name="l00180"></a>00180 <span class="keywordflow">return</span> TMoving;
<a name="l00181"></a>00181 <span class="keywordflow">else</span> <span class="keywordflow">if</span> (p.<a class="codeRef" href="qpoint.html#y">y</a>() <= margbox_.bottom()+tol && p.<a class="codeRef" href="qpoint.html#y">y</a>() >= margbox_.bottom()-tol)
<a name="l00182"></a>00182 <span class="keywordflow">return</span> BMoving;
<a name="l00183"></a>00183 <span class="keywordflow">else</span>
<a name="l00184"></a>00184 <span class="keywordflow">return</span> 0;
<a name="l00185"></a>00185 }
<a name="l00186"></a>00186
<a name="l00187"></a>00187 <span class="keywordtype">void</span> MarginPreview::mouseMoveEvent(<a class="codeRef" href="qmouseevent.html">QMouseEvent</a> *e)
<a name="l00188"></a>00188 {
<a name="l00189"></a>00189 <span class="keywordflow">if</span> (nopreview_ || state_ == Fixed)
<a name="l00190"></a>00190 <span class="keywordflow">return</span>;
<a name="l00191"></a>00191 <span class="keywordtype">int</span> pos = locateMouse(e-><a class="codeRef" href="qmouseevent.html#pos">pos</a>());
<a name="l00192"></a>00192 <span class="keywordflow">if</span> (state_ == None && e-><a class="codeRef" href="qmouseevent.html#button">button</a>() == Qt::NoButton)
<a name="l00193"></a>00193 {
<a name="l00194"></a>00194 <span class="keywordflow">switch</span> (pos)
<a name="l00195"></a>00195 {
<a name="l00196"></a>00196 <span class="keywordflow">case</span> 1:
<a name="l00197"></a>00197 <span class="keywordflow">case</span> 2:
<a name="l00198"></a>00198 setCursor(KCursor::sizeVerCursor());
<a name="l00199"></a>00199 <span class="keywordflow">break</span>;
<a name="l00200"></a>00200 <span class="keywordflow">case</span> 3:
<a name="l00201"></a>00201 <span class="keywordflow">case</span> 4:
<a name="l00202"></a>00202 setCursor(KCursor::sizeHorCursor());
<a name="l00203"></a>00203 <span class="keywordflow">break</span>;
<a name="l00204"></a>00204 <span class="keywordflow">default</span>:
<a name="l00205"></a>00205 setCursor(KCursor::arrowCursor());
<a name="l00206"></a>00206 <span class="keywordflow">break</span>;
<a name="l00207"></a>00207 }
<a name="l00208"></a>00208 }
<a name="l00209"></a>00209 <span class="keywordflow">else</span> <span class="keywordflow">if</span> (state_ > None)
<a name="l00210"></a>00210 {
<a name="l00211"></a>00211 <span class="keywordtype">int</span> newpos = -1;
<a name="l00212"></a>00212 <span class="keywordflow">switch</span> (state_)
<a name="l00213"></a>00213 {
<a name="l00214"></a>00214 <span class="keywordflow">case</span> TMoving:
<a name="l00215"></a>00215 newpos = QMIN(QMAX(e-><a class="codeRef" href="qmouseevent.html#pos">pos</a>().y(), box_.top()), (symetric_ ? (box_.top()+box_.bottom())/2 : margbox_.bottom()+1));
<a name="l00216"></a>00216 <span class="keywordflow">break</span>;
<a name="l00217"></a>00217 <span class="keywordflow">case</span> BMoving:
<a name="l00218"></a>00218 newpos = QMIN(QMAX(e-><a class="codeRef" href="qmouseevent.html#pos">pos</a>().y(), (symetric_? (box_.top()+box_.bottom()+1)/2 : margbox_.top()-1)), box_.bottom());
<a name="l00219"></a>00219 <span class="keywordflow">break</span>;
<a name="l00220"></a>00220 <span class="keywordflow">case</span> LMoving:
<a name="l00221"></a>00221 newpos = QMIN(QMAX(e-><a class="codeRef" href="qmouseevent.html#pos">pos</a>().x(), box_.left()), (symetric_ ? (box_.left()+box_.right())/2 : margbox_.right()+1));
<a name="l00222"></a>00222 <span class="keywordflow">break</span>;
<a name="l00223"></a>00223 <span class="keywordflow">case</span> RMoving:
<a name="l00224"></a>00224 newpos = QMIN(QMAX(e-><a class="codeRef" href="qmouseevent.html#pos">pos</a>().x(), (symetric_ ? (box_.left()+box_.right()+1)/2 : margbox_.left()-1)), box_.right());
<a name="l00225"></a>00225 <span class="keywordflow">break</span>;
<a name="l00226"></a>00226 }
<a name="l00227"></a>00227 <span class="keywordflow">if</span> (newpos != oldpos_)
<a name="l00228"></a>00228 {
<a name="l00229"></a>00229 <a class="codeRef" href="qpainter.html">QPainter</a> p(<span class="keyword">this</span>);
<a name="l00230"></a>00230 p.setRasterOp(Qt::XorROP);
<a name="l00231"></a>00231 p.setPen(gray);
<a name="l00232"></a>00232 <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i=0; i<2; i++, oldpos_ = newpos)
<a name="l00233"></a>00233 {
<a name="l00234"></a>00234 <span class="keywordflow">if</span> (oldpos_ >= 0)
<a name="l00235"></a>00235 drawTempLine(&p);
<a name="l00236"></a>00236 }
<a name="l00237"></a>00237 }
<a name="l00238"></a>00238 }
<a name="l00239"></a>00239 }
<a name="l00240"></a>00240
<a name="l00241"></a>00241 <span class="keywordtype">void</span> MarginPreview::drawTempLine(<a class="codeRef" href="qpainter.html">QPainter</a> *p)
<a name="l00242"></a>00242 {
<a name="l00243"></a>00243 <span class="keywordflow">if</span> (state_ >= LMoving)
<a name="l00244"></a>00244 {
<a name="l00245"></a>00245 p-><a class="codeRef" href="qpainter.html#drawLine">drawLine</a>(oldpos_, box_.top(), oldpos_, box_.bottom());
<a name="l00246"></a>00246 <span class="keywordflow">if</span> (symetric_)
<a name="l00247"></a>00247 {
<a name="l00248"></a>00248 <span class="keywordtype">int</span> mirror = box_.left()+box_.right()-oldpos_;
<a name="l00249"></a>00249 p-><a class="codeRef" href="qpainter.html#drawLine">drawLine</a>(mirror, box_.top(), mirror, box_.bottom());
<a name="l00250"></a>00250 }
<a name="l00251"></a>00251 }
<a name="l00252"></a>00252 <span class="keywordflow">else</span>
<a name="l00253"></a>00253 {
<a name="l00254"></a>00254 p-><a class="codeRef" href="qpainter.html#drawLine">drawLine</a>(box_.left(), oldpos_, box_.right(), oldpos_);
<a name="l00255"></a>00255 <span class="keywordflow">if</span> (symetric_)
<a name="l00256"></a>00256 {
<a name="l00257"></a>00257 <span class="keywordtype">int</span> mirror = box_.top()+box_.bottom()-oldpos_;
<a name="l00258"></a>00258 p-><a class="codeRef" href="qpainter.html#drawLine">drawLine</a>(box_.left(), mirror, box_.right(), mirror);
<a name="l00259"></a>00259 }
<a name="l00260"></a>00260 }
<a name="l00261"></a>00261 }
<a name="l00262"></a>00262
<a name="l00263"></a>00263 <span class="keywordtype">void</span> MarginPreview::mousePressEvent(<a class="codeRef" href="qmouseevent.html">QMouseEvent</a> *e)
<a name="l00264"></a>00264 {
<a name="l00265"></a>00265 <span class="keywordflow">if</span> (e-><a class="codeRef" href="qmouseevent.html#button">button</a>() != Qt::LeftButton || state_ != None)
<a name="l00266"></a>00266 <span class="keywordflow">return</span>;
<a name="l00267"></a>00267 <span class="keywordtype">int</span> mpos = locateMouse(e-><a class="codeRef" href="qmouseevent.html#pos">pos</a>());
<a name="l00268"></a>00268 <span class="keywordflow">if</span> (mpos)
<a name="l00269"></a>00269 {
<a name="l00270"></a>00270 state_ = mpos;
<a name="l00271"></a>00271 }
<a name="l00272"></a>00272 }
<a name="l00273"></a>00273
<a name="l00274"></a>00274 <span class="keywordtype">void</span> MarginPreview::mouseReleaseEvent(<a class="codeRef" href="qmouseevent.html">QMouseEvent</a> *e)
<a name="l00275"></a>00275 {
<a name="l00276"></a>00276 <span class="keywordflow">if</span> (state_ > None)
<a name="l00277"></a>00277 {
<a name="l00278"></a>00278 <a class="codeRef" href="qpainter.html">QPainter</a> p(<span class="keyword">this</span>);
<a name="l00279"></a>00279 p.<a class="codeRef" href="qpainter.html#setRasterOp">setRasterOp</a>(Qt::XorROP);
<a name="l00280"></a>00280 p.<a class="codeRef" href="qpainter.html#setPen">setPen</a>(gray);
<a name="l00281"></a>00281 <span class="keywordflow">if</span> (oldpos_ >= 0)
<a name="l00282"></a>00282 {
<a name="l00283"></a>00283 drawTempLine(&p);
<a name="l00284"></a>00284 <span class="keywordflow">if</span> (e)
<a name="l00285"></a>00285 {
<a name="l00286"></a>00286 <span class="keywordtype">float</span> val = 0;
<a name="l00287"></a>00287 <span class="keywordtype">int</span> st(state_);
<a name="l00288"></a>00288 <span class="keywordflow">if</span> (symetric_ && (st == BMoving || st == RMoving))
<a name="l00289"></a>00289 st--;
<a name="l00290"></a>00290 <span class="keywordflow">switch</span> (st)
<a name="l00291"></a>00291 {
<a name="l00292"></a>00292 <span class="keywordflow">case</span> TMoving:
<a name="l00293"></a>00293 val = top_ = UNSCALE(oldpos_-box_.top(), zoom_);
<a name="l00294"></a>00294 <span class="keywordflow">if</span> (symetric_)
<a name="l00295"></a>00295 bottom_ = height_-top_;
<a name="l00296"></a>00296 <span class="keywordflow">break</span>;
<a name="l00297"></a>00297 <span class="keywordflow">case</span> BMoving:
<a name="l00298"></a>00298 bottom_ = UNSCALE(oldpos_-box_.top(), zoom_);
<a name="l00299"></a>00299 val = UNSCALE(box_.bottom()-oldpos_, zoom_);
<a name="l00300"></a>00300 <span class="keywordflow">break</span>;
<a name="l00301"></a>00301 <span class="keywordflow">case</span> LMoving:
<a name="l00302"></a>00302 val = left_ = UNSCALE(oldpos_-box_.left(), zoom_);
<a name="l00303"></a>00303 <span class="keywordflow">if</span> (symetric_)
<a name="l00304"></a>00304 right_ = width_-left_;
<a name="l00305"></a>00305 <span class="keywordflow">break</span>;
<a name="l00306"></a>00306 <span class="keywordflow">case</span> RMoving:
<a name="l00307"></a>00307 right_ = UNSCALE(oldpos_-box_.left(), zoom_);
<a name="l00308"></a>00308 val = UNSCALE(box_.right()-oldpos_, zoom_);
<a name="l00309"></a>00309 <span class="keywordflow">break</span>;
<a name="l00310"></a>00310 }
<a name="l00311"></a>00311 update();
<a name="l00312"></a>00312 emit marginChanged(st, val);
<a name="l00313"></a>00313 }
<a name="l00314"></a>00314 }
<a name="l00315"></a>00315 state_ = 0;
<a name="l00316"></a>00316 oldpos_ = -1;
<a name="l00317"></a>00317 }
<a name="l00318"></a>00318 }
<a name="l00319"></a>00319
<a name="l00320"></a>00320 <span class="keywordtype">void</span> MarginPreview::enableRubberBand(<span class="keywordtype">bool</span> on)
<a name="l00321"></a>00321 {
<a name="l00322"></a>00322 <span class="keywordflow">if</span> (on && state_ == Fixed)
<a name="l00323"></a>00323 state_ = None;
<a name="l00324"></a>00324 <span class="keywordflow">else</span> <span class="keywordflow">if</span> (!on && state_ > Fixed)
<a name="l00325"></a>00325 {
<a name="l00326"></a>00326 mouseReleaseEvent(NULL);
<a name="l00327"></a>00327 state_ = Fixed;
<a name="l00328"></a>00328 }
<a name="l00329"></a>00329 }
<a name="l00330"></a>00330
<a name="l00331"></a>00331 <span class="preprocessor">#include "marginpreview.moc"</span>
</pre></div></div>
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