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tqscintilla/example/application.cpp

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/****************************************************************************
** $Id: application.cpp,v 1.1 2004/09/18 17:31:23 phil Exp $
**
** Copyright (C) 1992-2002 Trolltech AS. All rights reserved.
**
** This file is part of an example program for TQt. This example
** program may be used, distributed and modified without limitation.
**
*****************************************************************************/
#include "application.h"
#include <tqimage.h>
#include <tqpixmap.h>
#include <tqtoolbar.h>
#include <tqtoolbutton.h>
#include <tqpopupmenu.h>
#include <tqmenubar.h>
#include <tqfile.h>
#include <tqfiledialog.h>
#include <tqstatusbar.h>
#include <tqmessagebox.h>
#include <tqprinter.h>
#include <tqapplication.h>
#include <tqaccel.h>
#include <tqtextstream.h>
#include <tqpainter.h>
#include <tqpaintdevicemetrics.h>
#include <tqwhatsthis.h>
#include <tqsimplerichtext.h>
#include <tqextscintilla.h>
#include <tqextscintillaprinter.h>
#include "filesave.xpm"
#include "fileopen.xpm"
#include "fileprint.xpm"
ApplicationWindow::ApplicationWindow()
: TQMainWindow( 0, "example application main window", WDestructiveClose | WGroupLeader )
{
printer = new TQextScintillaPrinter( TQPrinter::HighResolution );
TQPixmap openIcon, saveIcon, printIcon;
TQToolBar * fileTools = new TQToolBar( this, "file operations" );
fileTools->setLabel( "File Operations" );
openIcon = TQPixmap( fileopen );
TQToolButton * fileOpen
= new TQToolButton( openIcon, "Open File", TQString(),
this, TQT_SLOT(choose()), fileTools, "open file" );
saveIcon = TQPixmap( filesave );
TQToolButton * fileSave
= new TQToolButton( saveIcon, "Save File", TQString(),
this, TQT_SLOT(save()), fileTools, "save file" );
printIcon = TQPixmap( fileprint );
TQToolButton * filePrint
= new TQToolButton( printIcon, "Print File", TQString(),
this, TQT_SLOT(print()), fileTools, "print file" );
(void)TQWhatsThis::whatsThisButton( fileTools );
const char * fileOpenText = "<p><img source=\"fileopen\"> "
"Click this button to open a <em>new file</em>.<br>"
"You can also select the <b>Open</b> command "
"from the <b>File</b> menu.</p>";
TQWhatsThis::add( fileOpen, fileOpenText );
TQMimeSourceFactory::defaultFactory()->setPixmap( "document-open", openIcon );
const char * fileSaveText = "<p>Click this button to save the file you "
"are editing. You will be prompted for a file name.\n"
"You can also select the <b>Save</b> command "
"from the <b>File</b> menu.</p>";
TQWhatsThis::add( fileSave, fileSaveText );
const char * filePrintText = "Click this button to print the file you "
"are editing.\n"
"You can also select the Print command "
"from the File menu.";
TQWhatsThis::add( filePrint, filePrintText );
TQPopupMenu * file = new TQPopupMenu( this );
menuBar()->insertItem( "&File", file );
file->insertItem( "&New", this, TQT_SLOT(newDoc()), CTRL+Key_N );
int id;
id = file->insertItem( openIcon, "&Open...",
this, TQT_SLOT(choose()), CTRL+Key_O );
file->setWhatsThis( id, fileOpenText );
id = file->insertItem( saveIcon, "&Save",
this, TQT_SLOT(save()), CTRL+Key_S );
file->setWhatsThis( id, fileSaveText );
id = file->insertItem( "Save &As...", this, TQT_SLOT(saveAs()) );
file->setWhatsThis( id, fileSaveText );
file->insertSeparator();
id = file->insertItem( printIcon, "&Print...",
this, TQT_SLOT(print()), CTRL+Key_P );
file->setWhatsThis( id, filePrintText );
file->insertSeparator();
file->insertItem( "&Close", this, TQT_SLOT(close()), CTRL+Key_W );
file->insertItem( "&Quit", tqApp, TQT_SLOT( closeAllWindows() ), CTRL+Key_Q );
menuBar()->insertSeparator();
TQPopupMenu * help = new TQPopupMenu( this );
menuBar()->insertItem( "&Help", help );
help->insertItem( "&About", this, TQT_SLOT(about()), Key_F1 );
help->insertItem( "About &TQt", this, TQT_SLOT(aboutTQt()) );
help->insertSeparator();
help->insertItem( "What's &This", this, TQT_SLOT(whatsThis()), SHIFT+Key_F1 );
e = new TQextScintilla( this, "editor" );
e->setFocus();
setCentralWidget( e );
statusBar()->message( "Ready", 2000 );
resize( 450, 600 );
}
ApplicationWindow::~ApplicationWindow()
{
delete printer;
}
void ApplicationWindow::newDoc()
{
ApplicationWindow *ed = new ApplicationWindow;
ed->setCaption("TQScintilla Example - Application");
ed->show();
}
void ApplicationWindow::choose()
{
TQString fn = TQFileDialog::getOpenFileName( TQString(), TQString(),
this);
if ( !fn.isEmpty() )
load( fn );
else
statusBar()->message( "Loading aborted", 2000 );
}
void ApplicationWindow::load( const TQString &fileName )
{
TQFile f( fileName );
if ( !f.open( IO_ReadOnly ) )
return;
TQTextStream ts( &f );
e->setText( ts.read() );
e->setModified( FALSE );
setCaption( fileName );
statusBar()->message( "Loaded document " + fileName, 2000 );
}
void ApplicationWindow::save()
{
if ( filename.isEmpty() ) {
saveAs();
return;
}
TQString text = e->text();
TQFile f( filename );
if ( !f.open( IO_WriteOnly ) ) {
statusBar()->message( TQString("Could not write to %1").arg(filename),
2000 );
return;
}
TQTextStream t( &f );
t << text;
f.close();
e->setModified( FALSE );
setCaption( filename );
statusBar()->message( TQString( "File %1 saved" ).arg( filename ), 2000 );
}
void ApplicationWindow::saveAs()
{
TQString fn = TQFileDialog::getSaveFileName( TQString(), TQString(),
this );
if ( !fn.isEmpty() ) {
filename = fn;
save();
} else {
statusBar()->message( "Saving aborted", 2000 );
}
}
void ApplicationWindow::print()
{
printer->setFullPage( TRUE );
if ( printer->setup(this) ) { // printer dialog
statusBar()->message( "Printing..." );
if (printer->printRange( e ))
statusBar()->message( "Printing completed", 2000 );
else
statusBar()->message( "Error while printing", 2000 );
} else {
statusBar()->message( "Printing aborted", 2000 );
}
}
void ApplicationWindow::closeEvent( TQCloseEvent* ce )
{
if ( !e->isModified() ) {
ce->accept();
return;
}
switch( TQMessageBox::information( this, "TQScintilla Application Example",
"Do you want to save the changes"
" to the document?",
"Yes", "No", "Cancel",
0, 1 ) ) {
case 0:
save();
ce->accept();
break;
case 1:
ce->accept();
break;
case 2:
default: // just for sanity
ce->ignore();
break;
}
}
void ApplicationWindow::about()
{
TQMessageBox::about( this, "TQScintilla Application Example",
"This example demonstrates a simple use of "
"TQextScintilla and TQextScintillaPrinter.");
}
void ApplicationWindow::aboutTQt()
{
TQMessageBox::aboutTQt( this, "TQScintilla Application Example" );
}
#include "application.moc"