karbon

valigncmd.cc

00001 /* This file is doc of the KDE project
00002    Copyright (C) 2001, 2002, 2003 The Karbon Developers
00003 
00004    This library is free software; you can redistribute it and/or
00005    modify it under the terms of the GNU Library General Public
00006    License as published by the Free Software Foundation; either
00007    version 2 of the License, or (at your option) any later version.
00008 
00009    This library is distributed in the hope that it will be useful,
00010    but WITHOUT ANY WARRANTY; without even the implied warranty of
00011    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00012    Library General Public License for more details.
00013 
00014    You should have received a copy of the GNU Library General Public License
00015    along with this library; see the file COPYING.LIB.  If not, write to
00016    the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
00017  * Boston, MA 02110-1301, USA.
00018 */
00019 
00020 
00021 #include <klocale.h>
00022 
00023 #include "valigncmd.h"
00024 #include "vtransformcmd.h"
00025 #include "vdocument.h"
00026 #include "vselection.h"
00027 
00028 #include <kdebug.h>
00029 
00030 VAlignCmd::VAlignCmd( VDocument *doc, Align align )
00031     : VCommand( doc, i18n( "Align Objects" ) ), m_align( align )
00032 {
00033     m_trafoCmds.setAutoDelete( true );
00034 }
00035 
00036 VAlignCmd::~VAlignCmd()
00037 {
00038 }
00039 
00040 void
00041 VAlignCmd::execute()
00042 {
00043     if( document()->selection()->objects().count() == 0 )
00044         return;
00045     double dx, dy;
00046     KoRect bbox;
00047     KoRect r;
00048     if( document()->selection()->objects().count() == 1 )
00049         r = document()->boundingBox();
00050     else
00051         r = document()->selection()->boundingBox();
00052     VObjectList objs = document()->selection()->objects();
00053     VObjectListIterator itr( objs );
00054     VTranslateCmd *trafoCmd = 0L;
00055     for( ; itr.current() ; ++itr )
00056     {
00057         document()->selection()->clear();
00058         bbox = itr.current()->boundingBox();
00059         switch( m_align )
00060         {
00061             case ALIGN_HORIZONTAL_LEFT  :   dx = r.topLeft().x() - bbox.topLeft().x(); dy = 0; break;
00062             case ALIGN_HORIZONTAL_CENTER:   dx = r.center().x() - bbox.center().x(); dy = 0; break;
00063             case ALIGN_HORIZONTAL_RIGHT :   dx = r.topRight().x() - bbox.topRight().x(); dy = 0; break;
00064             case ALIGN_VERTICAL_TOP     :   dx = 0; dy = r.bottomRight().y() - bbox.bottomRight().y(); break;
00065             case ALIGN_VERTICAL_CENTER  :   dx = 0; dy = r.center().y() - bbox.center().y(); break;
00066             case ALIGN_VERTICAL_BOTTOM  :   dx = 0; dy = r.topLeft().y() - bbox.topLeft().y(); break;
00067         };
00068         document()->selection()->append( itr.current() );
00069         trafoCmd = new VTranslateCmd( document(), dx, dy );
00070         m_trafoCmds.append( trafoCmd );
00071         trafoCmd->execute();
00072     }
00073     itr.toFirst();
00074     for( ; itr.current() ; ++itr )
00075         document()->selection()->append( itr.current() );
00076     setSuccess( true );
00077 }
00078 
00079 void
00080 VAlignCmd::unexecute()
00081 {
00082     QPtrListIterator<VTranslateCmd> itr( m_trafoCmds );
00083     for( ; itr.current() ; ++itr )
00084         itr.current()->unexecute();
00085     setSuccess( false );
00086 }
00087 
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