kig/filters/exporttoimagedialog.cc

   1 // Copyright (C)  2002  Dominique Devriese <devriese@kde.org>
   2
   3 // This program is free software; you can redistribute it and/or
   4 // modify it under the terms of the GNU General Public License
   5 // as published by the Free Software Foundation; either version 2
   6 // of the License, or (at your option) any later version.
   7
   8 // This program is distributed in the hope that it will be useful,
   9 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  10 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  11 // GNU General Public License for more details.
  12
  13 // You should have received a copy of the GNU General Public License
  14 // along with this program; if not, write to the Free Software
  15 // Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
  16 // 02111-1307, USA.
  17
  18 #include "exporttoimagedialog.h"
  19 #include "exporttoimagedialog.moc"
  20
  21 #include "../kig/kig_document.h"
  22 #include "../kig/kig_part.h"
  23 #include "../kig/kig_view.h"
  24 #include "../misc/kigpainter.h"
  25
  26 #include <qcheckbox.h>
  27
  28 #include <kiconloader.h>
  29 #include <kimageio.h>
  30 #include <klocale.h>
  31 #include <kmessagebox.h>
  32 #include <knuminput.h>
  33 #include <kpushbutton.h>
  34 #include <kurlrequester.h>
  35
  36 ExportToImageDialog::ExportToImageDialog( KigWidget* v, const KigPart* part )
  37   : ExportToImageDialogBase( v, "Export to image dialog", true ),
  38     mv( v ), mpart( part ), msize( v->size() ), minternallysettingstuff( false )
  39 {
  40   KIconLoader* l = part->instance()->iconLoader();
  41   OKButton->setIconSet( QIconSet( l->loadIcon( "button_ok", KIcon::Small ) ) );
  42   CancelButton->setIconSet( QIconSet( l->loadIcon( "button_cancel", KIcon::Small ) ) );
  43
  44   WidthInput->setValue( msize.width() );
  45   HeightInput->setValue( msize.height() );
  46
  47   showGridCheckBox->setChecked( part->document().grid() );
  48   showAxesCheckBox->setChecked( part->document().axes() );
  49
  50   static bool kimageioRegistered = false;
  51   if ( ! kimageioRegistered )
  52   {
  53     KImageIO::registerFormats();
  54     kimageioRegistered = true;
  55   };
  56
  57   URLRequester->setFilter( KImageIO::pattern( KImageIO::Writing ) );
  58   URLRequester->setMode( KFile::File | KFile::LocalOnly );
  59   URLRequester->setCaption( i18n( "Export to Image" ) );
  60
  61   connect( OKButton, SIGNAL( clicked() ), this, SLOT( slotOKPressed() ) );
  62   connect( CancelButton, SIGNAL( clicked() ), this, SLOT( slotCancelPressed() ) );
  63   connect( WidthInput, SIGNAL( valueChanged( int ) ), this, SLOT( slotWidthChanged( int ) ) );
  64   connect( HeightInput, SIGNAL( valueChanged( int ) ), this, SLOT( slotHeightChanged( int ) ) );
  65 }
  66
  67 void ExportToImageDialog::slotOKPressed()
  68 {
  69   QString filename = URLRequester->url();
  70   if ( filename.isEmpty() )
  71   {
  72     KMessageBox::sorry( mv, i18n( "Please enter a file name." ) );
  73     return;
  74   };
  75   QFile file( filename );
  76   if ( file.exists() )
  77   {
  78     int ret = KMessageBox::warningYesNo( mv,
  79                                          i18n( "The file \"%1\" already exists. Do you wish to overwrite it?" )
  80                                          .arg( filename ), i18n( "Overwrite file?" ) );
  81     if ( ret != KMessageBox::Yes ) return;
  82   };
  83
  84   if ( ! file.open( IO_WriteOnly ) )
  85   {
  86     KMessageBox::sorry( mv,
  87                         i18n( "The file \"%1\" could not be opened. Please check if the file permissions are set correctly." )
  88                         .arg( filename ) );
  89     return;
  90   };
  91
  92   QString type = KImageIO::type( filename );
  93   if ( type.isNull() )
  94   {
  95     KMessageBox::sorry( mv,
  96                         i18n( "Sorry, this file format is not supported." ) );
  97     return;
  98   };
  99
 100   kdDebug() << type << endl;
 101
 102   QPixmap img( QSize( WidthInput->value(), HeightInput->value() ) );
 103   img.fill( Qt::white );
 104   KigPainter p( ScreenInfo( mv->screenInfo().shownRect(), img.rect() ), &img, mpart->document());
 105   p.setWholeWinOverlay();
 106   p.drawGrid( mpart->document().coordinateSystem(), showGridCheckBox->isOn(), showAxesCheckBox->isOn() );
 107   // FIXME: show the selections ?
 108   p.drawObjects( mpart->document().objects(), false );
 109   if ( ! img.save( filename, type.latin1() ) )
 110   {
 111     KMessageBox::error( mv, i18n( "Sorry, something went wrong while saving to image \"%1\"" ).arg( filename ) );
 112     return;
 113   }
 114   else accept();
 115 }
 116
 117 void ExportToImageDialog::slotCancelPressed()
 118 {
 119   reject();
 120 }
 121
 122 void ExportToImageDialog::slotWidthChanged( int w )
 123 {
 124   if ( ! minternallysettingstuff )
 125   {
 126     minternallysettingstuff = true;
 127     HeightInput->setValue( w * msize.height() / msize.width() );
 128     minternallysettingstuff = false;
 129   };
 130 }
 131
 132 void ExportToImageDialog::slotHeightChanged( int h )
 133 {
 134   if ( ! minternallysettingstuff )
 135   {
 136     minternallysettingstuff = true;
 137     WidthInput->setValue( h * msize.width() / msize.height() );
 138     minternallysettingstuff = false;
 139   };
 140 }
 141
 142 ExportToImageDialog::~ExportToImageDialog()
 143 {
 144
 145 }