kivio

kivio_icon_view.cpp

00001 /*
00002  * Kivio - Visual Modelling and Flowcharting
00003  * Copyright (C) 2000-2001 theKompany.com & Dave Marotti
00004  *
00005  * This program is free software; you can redistribute it and/or
00006  * modify it under the terms of the GNU General Public License
00007  * as published by the Free Software Foundation; either version 2
00008  * of the License, or (at your option) any later version.
00009  *
00010  * This program is distributed in the hope that it will be useful,
00011  * but WITHOUT ANY WARRANTY; without even the implied warranty of
00012  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00013  * GNU General Public License for more details.
00014  *
00015  * You should have received a copy of the GNU General Public License
00016  * along with this program; if not, write to the Free Software
00017  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
00018  */
00019 #include "kivio_icon_view.h"
00020 
00021 #include "kivio_stencil_spawner.h"
00022 #include "kivio_stencil_spawner_set.h"
00023 #include "kivio_stencil_spawner_info.h"
00024 #include "kivio_spawner_drag.h"
00025 #include "kivio_common.h"
00026 #include "kivioglobal.h"
00027 #include "kivio_stencil.h"
00028 
00029 #include <qbrush.h>
00030 #include <qcursor.h>
00031 #include <qpalette.h>
00032 #include <klocale.h>
00033 #include <kdebug.h>
00034 #include <kglobalsettings.h>
00035 
00036 KivioStencilSpawner* KivioIconView::m_pCurDrag = 0L;
00037 QPtrList<KivioIconView> KivioIconView::objList;
00038 
00039 /**********************************************************************
00040  *
00041  * KivioIconViewItem
00042  *
00043  **********************************************************************/
00044 KivioIconViewItem::KivioIconViewItem( QIconView *parent )
00045     : QIconViewItem( parent )
00046 {
00047     m_pSpawner = NULL;
00048     setText("stencil");
00049 }
00050 
00051 KivioIconViewItem::~KivioIconViewItem()
00052 {
00053     m_pSpawner = NULL;
00054 }
00055 
00056 void KivioIconViewItem::setStencilSpawner( KivioStencilSpawner *pSpawn )
00057 {
00058     KivioStencilSpawnerInfo *pInfo;
00059 
00060     m_pSpawner = pSpawn;
00061 
00062     if( !m_pSpawner )
00063     {
00064         setText( i18n("untitled stencil", "Untitled") );
00065     }
00066     else
00067     {
00068         pInfo = m_pSpawner->info();
00069         setText( pInfo->title() );
00070         KivioStencil* stencil = m_pSpawner->newStencil();
00071         setPixmap(Kivio::generatePixmapFromStencil(32, 32, stencil));
00072         delete stencil;
00073     }
00074 
00075 }
00076 
00077 bool KivioIconViewItem::acceptDrop( const QMimeSource * ) const
00078 {
00079     return false;
00080 }
00081 
00082 
00083 /**********************************************************************
00084  *
00085  * KivioIconView
00086  *
00087  **********************************************************************/
00088 KivioIconView::KivioIconView( bool _readWrite,QWidget *parent, const char *name )
00089 : QIconView( parent, name )
00090 {
00091   m_pSpawnerSet = NULL;
00092   m_pCurDrag = NULL;
00093   isReadWrite=_readWrite;
00094   objList.append(this);
00095 
00096   setGridX( 64 );
00097   setGridY( 64 );
00098   setResizeMode( Adjust );
00099   setWordWrapIconText(true);
00100   setHScrollBarMode( AlwaysOff );
00101   setVScrollBarMode( Auto );
00102   setAutoArrange(true);
00103   setSorting(true);
00104 
00105   setItemsMovable(false);
00106 
00107   setArrangement(LeftToRight);
00108   setAcceptDrops(false);
00109   viewport()->setAcceptDrops(false);
00110   if(isReadWrite) {
00111     connect(this, SIGNAL(doubleClicked(QIconViewItem*)), this, SLOT(slotDoubleClicked(QIconViewItem*)));
00112     connect(this, SIGNAL(clicked(QIconViewItem*)), this, SLOT(slotClicked(QIconViewItem*)));
00113   }
00114 }
00115 
00116 KivioIconView::~KivioIconView()
00117 {
00118   objList.remove(this);
00119   m_pCurDrag = NULL;
00120 }
00121 
00122 void KivioIconView::setStencilSpawnerSet( KivioStencilSpawnerSet *pSet )
00123 {
00124   m_pSpawnerSet = pSet;
00125   m_pCurDrag = NULL;
00126 
00127   KivioStencilSpawner *pSpawner;
00128   KivioIconViewItem *pItem;
00129 
00130   pSpawner = pSet->spawners()->first();
00131   while( pSpawner )
00132   {
00133     pItem = new KivioIconViewItem( this );
00134     pItem->setKey(pSpawner->info()->title());
00135     pItem->setStencilSpawner(pSpawner);
00136 
00137     pSpawner = pSet->spawners()->next();
00138   }
00139 }
00140 
00141 QDragObject *KivioIconView::dragObject()
00142 {
00143   if( !currentItem() || !isReadWrite)
00144     return 0;
00145 
00146   QPoint orig = viewportToContents( viewport()->mapFromGlobal( QCursor::pos() ) );
00147   KivioSpawnerDrag *drag = new KivioSpawnerDrag( this, viewport() );
00148 
00149   const char*null_pix[]={
00150   "1 1 1 1",
00151   "# c None",
00152   "#"};
00153   drag->setPixmap(null_pix);
00154 
00155   KivioIconViewItem *item = (KivioIconViewItem *)currentItem();
00156 
00157   QIconDragItem id;
00158   QString full;
00159   full = item->spawner()->set()->dir() + "/" + item->spawner()->info()->title();
00160   id.setData( QCString(full.ascii()));
00161 
00162   drag->append( id,
00163       QRect( item->pixmapRect(FALSE).x() - orig.x(),
00164               item->pixmapRect(FALSE).y() - orig.y(),
00165               item->pixmapRect().width(),
00166               item->pixmapRect().height() ),
00167       QRect( item->textRect(FALSE).x() - orig.x(),
00168               item->textRect(FALSE).y() - orig.y(),
00169               item->textRect().width(),
00170               item->textRect().height() ),
00171       *(item->spawner()) );
00172 
00173 
00174   // Set the current dragged KivioStencilSpawner for use
00175   // when the drop occurs.  I don't actually encode the
00176   // data because it's a pain in the ass and I don't understand
00177   // how to do it.  So I store a pointer here and clear
00178   // it on the drop.
00179   m_pCurDrag = item->spawner();
00180 
00181   return drag;
00182 }
00183 
00184 void KivioIconView::clearCurrentDrag()
00185 {
00186   m_pCurDrag = 0;
00187 }
00188 
00189 
00190 void KivioIconView::slotDoubleClicked( QIconViewItem *pQtItem )
00191 {
00192   KivioIconViewItem* pItem = dynamic_cast<KivioIconViewItem *>(pQtItem);
00193 
00194   if( !pItem )
00195   {
00196     kdDebug(43000) << "KivioIconView::slotDoubleClicked() - Clicked item is not a KivioIconViewItem!" << endl;
00197     return;
00198   }
00199 
00200   KivioStencilSpawner* pSpawner = pItem->spawner();
00201 
00202   emit createNewStencil(pSpawner);
00203 }
00204 
00205 void KivioIconView::slotClicked(QIconViewItem* item)
00206 {
00207   KivioIconViewItem* stencilItem = dynamic_cast<KivioIconViewItem *>(item);
00208 
00209   if(!stencilItem)
00210   {
00211     kdDebug(43000) << "KivioIconView::slotClicked() - Clicked item is not a KivioIconViewItem!" << endl;
00212     return;
00213   }
00214 
00215   KivioStencilSpawner* spawner = stencilItem->spawner();
00216   emit stencilSelected(spawner);
00217 }
00218 
00219 #include "kivio_icon_view.moc"
KDE Home | KDE Accessibility Home | Description of Access Keys