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295 lines
7.7 KiB
295 lines
7.7 KiB
/****************************************************************************
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**
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** Copyright (C) 1992-2008 Trolltech ASA. All rights reserved.
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**
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** This file is part of an example program for TQt. This example
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** program may be used, distributed and modified without limitation.
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**
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*****************************************************************************/
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#include "application.h"
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#include <tqimage.h>
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#include <tqpixmap.h>
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#include <tqtoolbar.h>
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#include <tqtoolbutton.h>
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#include <tqpopupmenu.h>
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#include <tqmenubar.h>
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#include <tqtextedit.h>
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#include <tqfile.h>
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#include <tqfiledialog.h>
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#include <tqstatusbar.h>
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#include <ntqmessagebox.h>
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#include <tqprinter.h>
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#include <ntqapplication.h>
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#include <tqaccel.h>
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#include <tqtextstream.h>
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#include <tqpainter.h>
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#include <tqpaintdevicemetrics.h>
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#include <tqwhatsthis.h>
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#include <tqsimplerichtext.h>
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#include "filesave.xpm"
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#include "fileopen.xpm"
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#include "fileprint.xpm"
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ApplicationWindow::ApplicationWindow()
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: TQMainWindow( 0, "example application main window", WDestructiveClose | WGroupLeader )
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{
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printer = new TQPrinter( TQPrinter::HighResolution );
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TQPixmap openIcon, saveIcon, printIcon;
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TQToolBar * fileTools = new TQToolBar( this, "file operations" );
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fileTools->setLabel( "File Operations" );
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openIcon = TQPixmap( fileopen );
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TQToolButton * fileOpen
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= new TQToolButton( openIcon, "Open File", TQString::null,
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this, TQ_SLOT(choose()), fileTools, "open file" );
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saveIcon = TQPixmap( filesave );
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TQToolButton * fileSave
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= new TQToolButton( saveIcon, "Save File", TQString::null,
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this, TQ_SLOT(save()), fileTools, "save file" );
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printIcon = TQPixmap( fileprint );
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TQToolButton * filePrint
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= new TQToolButton( printIcon, "Print File", TQString::null,
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this, TQ_SLOT(print()), fileTools, "print file" );
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(void)TQWhatsThis::whatsThisButton( fileTools );
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const char * fileOpenText = "<p><img source=\"fileopen\"> "
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"Click this button to open a <em>new file</em>.<br>"
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"You can also select the <b>Open</b> command "
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"from the <b>File</b> menu.</p>";
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TQWhatsThis::add( fileOpen, fileOpenText );
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TQMimeSourceFactory::defaultFactory()->setPixmap( "document-open", openIcon );
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const char * fileSaveText = "<p>Click this button to save the file you "
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"are editing. You will be prompted for a file name.\n"
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"You can also select the <b>Save</b> command "
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"from the <b>File</b> menu.</p>";
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TQWhatsThis::add( fileSave, fileSaveText );
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const char * filePrintText = "Click this button to print the file you "
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"are editing.\n"
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"You can also select the Print command "
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"from the File menu.";
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TQWhatsThis::add( filePrint, filePrintText );
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TQPopupMenu * file = new TQPopupMenu( this );
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menuBar()->insertItem( "&File", file );
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file->insertItem( "&New", this, TQ_SLOT(newDoc()), CTRL+Key_N );
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int id;
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id = file->insertItem( openIcon, "&Open...",
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this, TQ_SLOT(choose()), CTRL+Key_O );
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file->setWhatsThis( id, fileOpenText );
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id = file->insertItem( saveIcon, "&Save",
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this, TQ_SLOT(save()), CTRL+Key_S );
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file->setWhatsThis( id, fileSaveText );
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id = file->insertItem( "Save &As...", this, TQ_SLOT(saveAs()) );
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file->setWhatsThis( id, fileSaveText );
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file->insertSeparator();
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id = file->insertItem( printIcon, "&Print...",
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this, TQ_SLOT(print()), CTRL+Key_P );
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file->setWhatsThis( id, filePrintText );
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file->insertSeparator();
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file->insertItem( "&Close", this, TQ_SLOT(close()), CTRL+Key_W );
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file->insertItem( "&Quit", tqApp, TQ_SLOT( closeAllWindows() ), CTRL+Key_Q );
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menuBar()->insertSeparator();
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TQPopupMenu * help = new TQPopupMenu( this );
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menuBar()->insertItem( "&Help", help );
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help->insertItem( "&About", this, TQ_SLOT(about()), Key_F1 );
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help->insertItem( "About &TQt", this, TQ_SLOT(aboutTQt()) );
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help->insertSeparator();
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help->insertItem( "What's &This", this, TQ_SLOT(whatsThis()), SHIFT+Key_F1 );
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e = new TQTextEdit( this, "editor" );
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e->setFocus();
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setCentralWidget( e );
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statusBar()->message( "Ready", 2000 );
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resize( 450, 600 );
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}
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ApplicationWindow::~ApplicationWindow()
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{
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delete printer;
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}
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void ApplicationWindow::newDoc()
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{
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ApplicationWindow *ed = new ApplicationWindow;
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ed->setCaption("TQt Example - Application");
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ed->show();
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}
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void ApplicationWindow::choose()
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{
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TQString fn = TQFileDialog::getOpenFileName( TQString::null, TQString::null,
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this);
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if ( !fn.isEmpty() )
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load( fn );
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else
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statusBar()->message( "Loading aborted", 2000 );
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}
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void ApplicationWindow::load( const TQString &fileName )
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{
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TQFile f( fileName );
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if ( !f.open( IO_ReadOnly ) )
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return;
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TQTextStream ts( &f );
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e->setText( ts.read() );
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e->setModified( FALSE );
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setCaption( fileName );
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statusBar()->message( "Loaded document " + fileName, 2000 );
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}
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void ApplicationWindow::save()
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{
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if ( filename.isEmpty() ) {
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saveAs();
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return;
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}
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TQString text = e->text();
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TQFile f( filename );
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if ( !f.open( IO_WriteOnly ) ) {
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statusBar()->message( TQString("Could not write to %1").arg(filename),
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2000 );
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return;
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}
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TQTextStream t( &f );
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t << text;
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f.close();
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e->setModified( FALSE );
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setCaption( filename );
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statusBar()->message( TQString( "File %1 saved" ).arg( filename ), 2000 );
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}
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void ApplicationWindow::saveAs()
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{
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TQString fn = TQFileDialog::getSaveFileName( TQString::null, TQString::null,
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this );
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if ( !fn.isEmpty() ) {
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filename = fn;
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save();
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} else {
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statusBar()->message( "Saving aborted", 2000 );
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}
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}
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void ApplicationWindow::print()
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{
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printer->setFullPage( TRUE );
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if ( printer->setup(this) ) { // printer dialog
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statusBar()->message( "Printing..." );
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TQPainter p;
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if( !p.begin( printer ) ) { // paint on printer
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statusBar()->message( "Printing aborted", 2000 );
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return;
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}
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TQPaintDeviceMetrics metrics( p.device() );
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int dpiy = metrics.logicalDpiY();
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int margin = (int) ( (2/2.54)*dpiy ); // 2 cm margins
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TQRect view( margin, margin, metrics.width() - 2*margin, metrics.height() - 2*margin );
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TQSimpleRichText richText( TQStyleSheet::convertFromPlainText(e->text()),
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TQFont(),
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e->context(),
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e->styleSheet(),
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e->mimeSourceFactory(),
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view.height() );
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richText.setWidth( &p, view.width() );
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int page = 1;
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do {
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richText.draw( &p, margin, margin, view, colorGroup() );
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view.moveBy( 0, view.height() );
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p.translate( 0 , -view.height() );
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p.drawText( view.right() - p.fontMetrics().width( TQString::number( page ) ),
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view.bottom() + p.fontMetrics().ascent() + 5, TQString::number( page ) );
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if ( view.top() - margin >= richText.height() )
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break;
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printer->newPage();
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page++;
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} while (TRUE);
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statusBar()->message( "Printing completed", 2000 );
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} else {
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statusBar()->message( "Printing aborted", 2000 );
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}
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}
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void ApplicationWindow::closeEvent( TQCloseEvent* ce )
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{
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if ( !e->isModified() ) {
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ce->accept();
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return;
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}
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switch( TQMessageBox::information( this, "TQt Application Example",
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"Do you want to save the changes"
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" to the document?",
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"Yes", "No", "Cancel",
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0, 1 ) ) {
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case 0:
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save();
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ce->accept();
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break;
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case 1:
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ce->accept();
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break;
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case 2:
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default: // just for sanity
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ce->ignore();
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break;
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}
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}
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void ApplicationWindow::about()
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{
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TQMessageBox::about( this, "TQt Application Example",
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"This example demonstrates simple use of "
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"TQMainWindow,\nTQMenuBar and TQToolBar.");
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}
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void ApplicationWindow::aboutTQt()
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{
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TQMessageBox::aboutTQt( this, "TQt Application Example" );
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}
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