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<h1>kpixmapregionselectorwidget.h</h1><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 libkdepim.</span>
<a name="l00003"></a>00003 <span class="comment"></span>
<a name="l00004"></a>00004 <span class="comment"> Copyright (C) 2004 Antonio Larrosa <larrosa@kde.org</span>
<a name="l00005"></a>00005 <span class="comment"></span>
<a name="l00006"></a>00006 <span class="comment"> This library is free software; you can redistribute it and/or</span>
<a name="l00007"></a>00007 <span class="comment"> modify it under the terms of the GNU Library General Public</span>
<a name="l00008"></a>00008 <span class="comment"> License as published by the Free Software Foundation; either</span>
<a name="l00009"></a>00009 <span class="comment"> version 2 of the License, or (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 library 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 GNU</span>
<a name="l00014"></a>00014 <span class="comment"> Library 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 Library General Public License</span>
<a name="l00017"></a>00017 <span class="comment"> along with this library; see the file COPYING.LIB. If not, write to</span>
<a name="l00018"></a>00018 <span class="comment"> the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,</span>
<a name="l00019"></a>00019 <span class="comment"> Boston, MA 02110-1301, USA.</span>
<a name="l00020"></a>00020 <span class="comment">*/</span>
<a name="l00021"></a>00021
<a name="l00022"></a>00022 <span class="preprocessor">#ifndef __KPIXMAPREGIONSELECTORWIDGET_H__</span>
<a name="l00023"></a>00023 <span class="preprocessor"></span><span class="preprocessor">#define __KPIXMAPREGIONSELECTORWIDGET_H__</span>
<a name="l00024"></a>00024 <span class="preprocessor"></span>
<a name="l00025"></a>00025 <span class="preprocessor">#include <qvbox.h></span>
<a name="l00026"></a>00026 <span class="preprocessor">#include <qpixmap.h></span>
<a name="l00027"></a>00027 <span class="preprocessor">#include <qrect.h></span>
<a name="l00028"></a>00028 <span class="preprocessor">#include <qlabel.h></span>
<a name="l00029"></a>00029 <span class="preprocessor">#include <kimageeffect.h></span>
<a name="l00030"></a>00030
<a name="l00031"></a>00031 <span class="keyword">class </span>KPopupMenu;
<a name="l00032"></a>00032
<a name="l00033"></a>00033 <span class="keyword">namespace </span>KPIM {
<a name="l00034"></a>00034
<a name="l00047"></a><a class="code" href="classKPIM_1_1KPixmapRegionSelectorWidget.html">00047</a> <span class="keyword">class </span><a class="code" href="classKPIM_1_1KPixmapRegionSelectorWidget.html" title="KPixmapRegionSelectorWidget is a widget that shows a picture and provides the user...">KPixmapRegionSelectorWidget</a> : <span class="keyword">public</span> QWidget
<a name="l00048"></a>00048 {
<a name="l00049"></a>00049 Q_OBJECT
<a name="l00050"></a>00050
<a name="l00051"></a>00051 <span class="keyword">public</span>:
<a name="l00055"></a>00055 <a class="code" href="classKPIM_1_1KPixmapRegionSelectorWidget.html#de78fce36ab63f9338ea4fd4bc704df8" title="Constructor for a KPixmapRegionSelectorWidget.">KPixmapRegionSelectorWidget</a>( QWidget *parent = 0L, <span class="keyword">const</span> <span class="keywordtype">char</span> *name=0L);
<a name="l00056"></a>00056
<a name="l00060"></a>00060 <a class="code" href="classKPIM_1_1KPixmapRegionSelectorWidget.html#aacfd0544addea6be03788f662bd5240" title="Destructor for a KPixmapRegionSelectorWidget.">~KPixmapRegionSelectorWidget</a>();
<a name="l00061"></a>00061
<a name="l00066"></a>00066 <span class="keywordtype">void</span> <a class="code" href="classKPIM_1_1KPixmapRegionSelectorWidget.html#73da6ca60a3708678a22ea29b4109d80" title="Sets the pixmap which will be shown for the user to select a region from.">setPixmap</a>( <span class="keyword">const</span> QPixmap &<a class="code" href="classKPIM_1_1KPixmapRegionSelectorWidget.html#33bc835389816a3b8b83d2bdd4457d8f">pixmap</a> );
<a name="l00067"></a>00067
<a name="l00072"></a><a class="code" href="classKPIM_1_1KPixmapRegionSelectorWidget.html#33bc835389816a3b8b83d2bdd4457d8f">00072</a> QPixmap <a class="code" href="classKPIM_1_1KPixmapRegionSelectorWidget.html#33bc835389816a3b8b83d2bdd4457d8f">pixmap</a>()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> m_unzoomedPixmap; }
<a name="l00073"></a>00073
<a name="l00077"></a>00077 <span class="keywordtype">void</span> <a class="code" href="classKPIM_1_1KPixmapRegionSelectorWidget.html#19df71d2ce7b3ece449475481a52ebce" title="Sets the selected region to be rect (in zoomed pixmap coordinates).">setSelectedRegion</a>(<span class="keyword">const</span> QRect &rect);
<a name="l00078"></a>00078
<a name="l00082"></a>00082 QRect <a class="code" href="classKPIM_1_1KPixmapRegionSelectorWidget.html#f3f09dea961923509f2018d94cd7e43a" title="Returns the selected region ( in zoomed pixmap coordinates ).">selectedRegion</a>() <span class="keyword">const</span>;
<a name="l00083"></a>00083
<a name="l00087"></a>00087 QRect <a class="code" href="classKPIM_1_1KPixmapRegionSelectorWidget.html#8a280111c5b3d66b3034f00298fcf7be" title="Returns the selected region ( in unzoomed, original pixmap coordinates ).">unzoomedSelectedRegion</a>() <span class="keyword">const</span>;
<a name="l00088"></a>00088
<a name="l00092"></a>00092 <span class="keywordtype">void</span> <a class="code" href="classKPIM_1_1KPixmapRegionSelectorWidget.html#1af347bfd2bd1ced3c611d74de09e7ef" title="Resets the selection to use the whole image.">resetSelection</a>();
<a name="l00093"></a>00093
<a name="l00098"></a>00098 QImage <a class="code" href="classKPIM_1_1KPixmapRegionSelectorWidget.html#b4b652f38d3c2273c8c0b3599062c0eb">selectedImage</a>() <span class="keyword">const</span>;
<a name="l00099"></a>00099
<a name="l00105"></a>00105 <span class="keywordtype">void</span> <a class="code" href="classKPIM_1_1KPixmapRegionSelectorWidget.html#7928265e2eb37bbaa51b72135315708f" title="Sets the aspect ration that the selected subimage should have.">setSelectionAspectRatio</a>(<span class="keywordtype">int</span> width, <span class="keywordtype">int</span> height);
<a name="l00106"></a>00106
<a name="l00112"></a>00112 <span class="keywordtype">void</span> <a class="code" href="classKPIM_1_1KPixmapRegionSelectorWidget.html#58ab0c35c150233bc00e9bcd66209cf2" title="Allows the user to do a selection which has any aspect ratio.">setFreeSelectionAspectRatio</a>();
<a name="l00113"></a>00113
<a name="l00119"></a>00119 <span class="keywordtype">void</span> <a class="code" href="classKPIM_1_1KPixmapRegionSelectorWidget.html#c17bb4eba4bcdda7cfaa487fbd3a7a26" title="Sets the maximum size for the widget.">setMaximumWidgetSize</a>( <span class="keywordtype">int</span> width, <span class="keywordtype">int</span> height );
<a name="l00120"></a>00120
<a name="l00127"></a>00127 <span class="keywordtype">void</span> <a class="code" href="classKPIM_1_1KPixmapRegionSelectorWidget.html#2e2e4fd4803c0dee5c89b6454ba6a840" title="Rotates the image as specified by the direction parameter, also tries to rotate the...">rotate</a>(KImageEffect::RotateDirection direction);
<a name="l00128"></a>00128
<a name="l00129"></a>00129 <span class="keyword">public</span> slots:
<a name="l00133"></a>00133 <span class="keywordtype">void</span> <a class="code" href="classKPIM_1_1KPixmapRegionSelectorWidget.html#36ae5437f5bc15fd2eedb9fb18847fa0" title="Rotates the current image 90º clockwise.">rotateClockwise</a>();
<a name="l00137"></a>00137 <span class="keywordtype">void</span> <a class="code" href="classKPIM_1_1KPixmapRegionSelectorWidget.html#aaf3e4b9255fa970a813241853509dfc" title="Rotates the current image 90º counterclockwise.">rotateCounterclockwise</a>();
<a name="l00138"></a>00138
<a name="l00139"></a>00139 <span class="keyword">protected</span>:
<a name="l00143"></a>00143 <span class="keyword">virtual</span> KPopupMenu *<a class="code" href="classKPIM_1_1KPixmapRegionSelectorWidget.html#f1a59a5e14569ff99efd45a62d8e246b" title="Creates a KPopupMenu with the menu that appears when clicking with the right button...">createPopupMenu</a>();
<a name="l00144"></a>00144
<a name="l00145"></a>00145
<a name="l00146"></a>00146 <span class="keyword">private</span>:
<a name="l00147"></a>00147 <span class="keywordtype">bool</span> eventFilter(QObject *obj, QEvent *ev);
<a name="l00148"></a>00148
<a name="l00153"></a>00153 <span class="keywordtype">void</span> updatePixmap();
<a name="l00154"></a>00154
<a name="l00155"></a>00155 QRect calcSelectionRectangle( <span class="keyword">const</span> QPoint &startPoint, <span class="keyword">const</span> QPoint & endPoint );
<a name="l00156"></a>00156
<a name="l00157"></a>00157 <span class="keyword">enum</span> CursorState { None=0, Resizing, Moving };
<a name="l00158"></a>00158 CursorState m_state;
<a name="l00159"></a>00159
<a name="l00160"></a>00160 QPixmap m_unzoomedPixmap;
<a name="l00161"></a>00161 QPixmap m_originalPixmap;
<a name="l00162"></a>00162 QPixmap m_linedPixmap;
<a name="l00163"></a>00163 QRect m_selectedRegion;
<a name="l00164"></a>00164 QLabel *m_label;
<a name="l00165"></a>00165
<a name="l00166"></a>00166 QPoint m_tempFirstClick;
<a name="l00167"></a>00167 <span class="keywordtype">double</span> m_forcedAspectRatio;
<a name="l00168"></a>00168
<a name="l00169"></a>00169 <span class="keywordtype">int</span> m_maxWidth, m_maxHeight;
<a name="l00170"></a>00170 <span class="keywordtype">double</span> m_zoomFactor;
<a name="l00171"></a>00171 };
<a name="l00172"></a>00172
<a name="l00173"></a>00173 } <span class="comment">// for namespace</span>
<a name="l00174"></a>00174
<a name="l00175"></a>00175 <span class="preprocessor">#endif</span>
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