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114 lines
2.7 KiB
114 lines
2.7 KiB
14 years ago
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#include "canvasview.h"
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#include "chartform.h"
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#include <qfile.h>
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#include <qfiledialog.h>
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#include <qpainter.h>
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#include <qprinter.h>
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#include <qstatusbar.h>
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void ChartForm::load( const QString& filename )
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{
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QFile file( filename );
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if ( !file.open( IO_ReadOnly ) ) {
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statusBar()->message( QString( "Failed to load \'%1\'" ).
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arg( filename ), 2000 );
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return;
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}
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init(); // Make sure we have colours
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m_filename = filename;
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QTextStream ts( &file );
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Element element;
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int errors = 0;
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int i = 0;
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while ( !ts.eof() ) {
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ts >> element;
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if ( element.isValid() )
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m_elements[i++] = element;
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else
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errors++;
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if ( i == MAX_ELEMENTS ) {
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statusBar()->message(
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QString( "Read maximum number of elements (%1)"
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" discarding others" ).arg( i ), 2000 );
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break;
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}
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}
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file.close();
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QString bad = "";
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if ( errors ) {
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bad = QString( "; skipped " ) + QString::number( errors ) + " bad record";
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if ( errors > 1 )
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bad += "s";
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}
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statusBar()->message( QString( "Read %1 values from \'%2\'%3" ).
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arg( i ).arg( filename ).arg( bad ), 3000 );
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setCaption( QString( "Chart -- %1" ).arg( filename ) );
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updateRecentFiles( filename );
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drawElements();
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m_changed = FALSE;
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}
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void ChartForm::fileSave()
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{
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if ( m_filename.isEmpty() ) {
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fileSaveAs();
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return;
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}
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QFile file( m_filename );
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if ( !file.open( IO_WriteOnly ) ) {
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statusBar()->message( QString( "Failed to save \'%1\'" ).
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arg( m_filename ), 2000 );
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return;
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}
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QTextStream ts( &file );
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for ( int i = 0; i < MAX_ELEMENTS; ++i )
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if ( m_elements[i].isValid() )
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ts << m_elements[i];
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file.close();
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setCaption( QString( "Chart -- %1" ).arg( m_filename ) );
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statusBar()->message( QString( "Saved \'%1\'" ).arg( m_filename ), 2000 );
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m_changed = FALSE;
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}
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void ChartForm::fileSaveAsPixmap()
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{
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QString filename = QFileDialog::getSaveFileName(
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QString::null, "Images (*.png *.xpm *.jpg)",
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this, "file save as bitmap",
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"Chart -- File Save As Bitmap" );
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if ( QPixmap::grabWidget( m_canvasView ).
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save( filename,
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filename.mid( filename.findRev( '.' ) + 1 ).upper() ) )
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statusBar()->message( QString( "Wrote \'%1\'" ).arg( filename ), 2000 );
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else
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statusBar()->message( QString( "Failed to write \'%1\'" ).
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arg( filename ), 2000 );
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}
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void ChartForm::filePrint()
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{
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if ( !m_printer )
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m_printer = new QPrinter;
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if ( m_printer->setup() ) {
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QPainter painter( m_printer );
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m_canvas->drawArea( QRect( 0, 0, m_canvas->width(), m_canvas->height() ),
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&painter, FALSE );
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if ( !m_printer->outputFileName().isEmpty() )
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statusBar()->message( QString( "Printed \'%1\'" ).
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arg( m_printer->outputFileName() ), 2000 );
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}
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}
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