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412 lines
9.8 KiB
412 lines
9.8 KiB
/***************************************************************************
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mreportviewer.cpp - Kugar QT report viewer widget
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-------------------
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begin : Fri Aug 13 1999
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copyright : (C) 1999 by Mutiny Bay Software
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email : info@mutinybaysoftware.com
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copyright : (C) 2002 Alexander Dymo
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email : cloudtemple@mksat.net
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***************************************************************************/
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#include <qapplication.h>
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#include <kmessagebox.h>
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#include <kprinter.h>
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#include <klocale.h>
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#include "mreportviewer.h"
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namespace Kugar
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{
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/** Constructor */
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MReportViewer::MReportViewer( MReportEngine *engine, QWidget *parent, const char *name ) : QWidget( parent, name ), progress( 0 )
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{
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rptEngine = engine;
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rptEngine->addRef();
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init();
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}
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MReportViewer::MReportViewer( QWidget *parent, const char *name ) : QWidget( parent, name ), progress( 0 )
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{
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// Create the scrollview
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rptEngine = new MReportEngine();
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init();
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}
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void MReportViewer::init()
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{
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scroller = new QScrollView( this );
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// Connect the rendering update signal and slot
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connect( rptEngine, SIGNAL( signalRenderStatus( int ) ),
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SLOT( slotRenderProgress( int ) ) );
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connect( rptEngine, SIGNAL( preferedTemplate( const QString & ) ),
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SIGNAL( preferedTemplate( const QString & ) ) );
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// Get the current color palette
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QPalette p = palette();
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QColorGroup g = p.active();
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// Set the scroller's background color
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scroller->viewport() ->setBackgroundColor( g.mid() );
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// Create the report display widget
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display = new MPageDisplay( scroller->viewport() );
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// Set the display's default background color
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display->setBackgroundColor( white );
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// Add the display to the scrollview
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scroller->addChild( display );
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//Hide the display, we don't have a report yet ..
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display->hide();
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}
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/** Destructor */
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MReportViewer::~MReportViewer()
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{
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clearReport();
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rptEngine->removeRef();
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}
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/** Report viewer's paint event */
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void MReportViewer::paintEvent( QPaintEvent* event )
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{}
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/** Report viewer's resize event */
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void MReportViewer::resizeEvent( QResizeEvent* event )
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{
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scroller->resize( event->size() );
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}
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// Set the report's data from an in-line string.
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bool MReportViewer::setReportData( const QString &data )
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{
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return rptEngine -> setReportData( data );
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}
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// Set the report's data from an i/o device.
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bool MReportViewer::setReportData( QIODevice *dev )
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{
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return rptEngine -> setReportData( dev );
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}
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// Set the report's template from an in-line string.
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bool MReportViewer::setReportTemplate( const QString &tpl )
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{
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return rptEngine -> setReportTemplate( tpl );
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}
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// Set the report's template from an i/o device.
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bool MReportViewer::setReportTemplate( QIODevice *dev )
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{
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return rptEngine -> setReportTemplate( dev );
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}
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/** Generates the report's page collection */
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bool MReportViewer::renderReport()
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{
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// Render the report
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report = rptEngine->renderReport();
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// Display the first page of the report
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if ( report && report->getFirstPage() != 0 )
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{
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display->setPageDimensions( report->pageDimensions() );
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display->setPage( report->getFirstPage() );
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display->show();
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return true;
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}
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return false;
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}
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/** Clears the report's page collection */
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void MReportViewer::clearReport()
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{
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// Hide the display
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display->hide();
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}
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/** Prints the rendered report to the selected printer - displays KDE print dialog */
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void MReportViewer::printReport()
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{
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// Check for a report
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if ( !report )
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return ;
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// Get the page count
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int cnt = report->pageCount();
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// Check if there is a report or any pages to print
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if ( cnt == 0 )
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{
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KMessageBox::error( this, i18n( "There are no pages in the\nreport to print." ) );
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return ;
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}
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// Set the printer dialog
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KPrinter printer;
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setupPrinter( printer );
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if ( printer.setup( this ) )
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printReport( printer );
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}
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/** Shows the first page in the report */
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void MReportViewer::slotFirstPage()
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{
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QPicture * page;
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if ( !report )
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return ;
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if ( ( page = report->getFirstPage() ) != 0 )
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{
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display->setPage( page );
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display->repaint();
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}
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}
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/** Shows the next page in the report */
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void MReportViewer::slotNextPage()
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{
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QPicture * page;
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if ( !report )
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return ;
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int index = report->getCurrentIndex();
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if ( ( page = report->getNextPage() ) != 0 )
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{
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display->setPage( page );
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display->repaint();
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}
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else
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report->setCurrentPage( index );
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}
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/** Shows the prevoius page in the report */
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void MReportViewer::slotPrevPage()
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{
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QPicture * page;
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if ( !report )
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return ;
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int index = report->getCurrentIndex();
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if ( ( page = report->getPreviousPage() ) != 0 )
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{
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display->setPage( page );
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display->repaint();
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}
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else
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report->setCurrentPage( index );
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}
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/** Shows the last page in the report */
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void MReportViewer::slotLastPage()
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{
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QPicture * page;
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if ( !report )
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return ;
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if ( ( page = report->getLastPage() ) != 0 )
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{
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display->setPage( page );
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display->repaint();
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}
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}
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/** Cancel printing of the report */
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void MReportViewer::slotCancelPrinting()
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{
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printer->abort();
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}
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/** Updates rendering progress */
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void MReportViewer::slotRenderProgress( int p )
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{
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// Check if the dialog was created
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if ( progress == 0 )
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{
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totalSteps = rptEngine->getRenderSteps();
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progress = new QProgressDialog( i18n("Creating report..."), i18n("Cancel"),
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totalSteps, this, "progress", true );
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progress->setMinimumDuration( M_PROGRESS_DELAY );
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}
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// Update the dialog
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progress->setProgress( p );
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qApp->processEvents();
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// Check if the action was canceled
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if ( progress->wasCancelled() )
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{
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progress->setProgress( totalSteps );
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rptEngine->slotCancelRendering();
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}
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// Cleanup dialog if necessary
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if ( progress->progress() == -1 )
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{
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delete progress;
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progress = 0;
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}
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}
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// Return the preferred size.
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QSize MReportViewer::sizeHint() const
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{
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return scroller -> sizeHint();
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}
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void MReportViewer::printReport( KPrinter &printer )
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{
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// Check for a report
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if ( !report )
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return ;
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// Get the page count
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int cnt = report->pageCount();
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// Check if there is a report or any pages to print
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if ( cnt == 0 )
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{
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KMessageBox::error( this, i18n( "There are no pages in the\nreport to print." ) );
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return ;
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}
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QPicture* page;
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QPainter painter;
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bool printRev;
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// Save the viewer's page index
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int viewIdx = report->getCurrentIndex();
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// Check the order we are printing the pages
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if ( printer.pageOrder() == KPrinter::FirstPageFirst )
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printRev = false;
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else
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printRev = true;
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// Get the count of pages and copies to print
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int printFrom = printer.fromPage() - 1;
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int printTo = printer.toPage();
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int printCnt = ( printTo - printFrom );
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int printCopies = printer.numCopies();
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int totalSteps = printCnt * printCopies;
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int currentStep = 1;
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// Set copies to 1, KPrinter copies does not appear to work ...
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printer.setNumCopies( 1 );
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// Setup the progress dialog
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QProgressDialog progress( i18n( "Printing report..." ),
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i18n( "Cancel" ),
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totalSteps, this, "progress", true );
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progress.setMinimumDuration( M_PROGRESS_DELAY );
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QObject::connect( &progress, SIGNAL( cancelled() ), this, SLOT( slotCancelPrinting() ) );
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progress.setProgress( 0 );
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qApp->processEvents();
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// Start the printer
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painter.begin( &printer );
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// Print each copy
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for ( int j = 0; j < printCopies; j++ )
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{
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// Print each page in the collection
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for ( int i = printFrom ; i < printTo; i++, currentStep++ )
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{
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if ( !printer.aborted() )
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{
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progress.setProgress( currentStep );
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qApp->processEvents();
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if ( printRev )
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report->setCurrentPage( ( printCnt == 1 ) ? i : ( printCnt - 1 ) - i );
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else
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report->setCurrentPage( i );
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page = report->getCurrentPage();
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page->play( &painter );
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if ( i < printCnt - 1 )
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printer.newPage();
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}
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else
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{
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j = printCopies;
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break;
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}
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}
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if ( j < printCopies - 1 )
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printer.newPage();
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}
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// Cleanup printing
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setCursor( arrowCursor );
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painter.end();
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report->setCurrentPage( viewIdx );
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}
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void MReportViewer::setupPrinter( KPrinter &printer )
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{
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int cnt = report->pageCount();
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printer.setPageSize( ( KPrinter::PageSize ) report->pageSize() );
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printer.setOrientation( ( KPrinter::Orientation ) report->pageOrientation() );
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printer.setMinMax( 1, cnt );
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printer.setFromTo( 1, cnt );
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printer.setFullPage( true );
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}
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void MReportViewer::printReportSilent( int printFrom, int printTo, int printCopies, QString printerName )
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{
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int cnt = report->pageCount();
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if ( printFrom == -1 )
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printFrom = 1;
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if ( printTo == -1 )
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printTo = cnt;
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if ( printCopies == -1 )
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printCopies = 1;
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printer = new KPrinter();
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printer->setPageSize( ( KPrinter::PageSize ) report->pageSize() );
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printer->setOrientation( ( KPrinter::Orientation ) report->pageOrientation() );
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printer->setMinMax( 1, cnt );
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printer->setFullPage( true );
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printer->setNumCopies( printCopies );
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printer->setFromTo( printFrom, printTo );
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if ( !printerName.isEmpty() )
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printer->setPrinterName( printerName );
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printReport( *printer );
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delete printer;
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}
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}
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#include "mreportviewer.moc"
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