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- /****************************************************************************
- ** $Id: qt/scribble.cpp 3.0.3 edited Oct 12 12:18 $
- **
- ** Copyright ( C ) 1992-2000 Trolltech AS. All rights reserved.
- **
- ** This file is part of an example program for Qt. This example
- ** program may be used, distributed and modified without limitation.
- **
- *****************************************************************************/
-
- #include "canvas.h"
- #include "scribble.h"
-
- #include <qapplication.h>
- #include <qevent.h>
- #include <qpainter.h>
- #include <qtoolbar.h>
- #include <qtoolbutton.h>
- #include <qspinbox.h>
- #include <qtooltip.h>
- #include <qrect.h>
- #include <qpoint.h>
- #include <qcolordialog.h>
- #include <qfiledialog.h>
- #include <qcursor.h>
- #include <qimage.h>
- #include <qstrlist.h>
- #include <qpopupmenu.h>
- #include <qintdict.h>
-
-
-
- Scribble::Scribble( QWidget *parent, const char *name )
- : QMainWindow( parent, name )
- {
- canvas = new Canvas( this );
- setCentralWidget( canvas );
-
- QToolBar *tools = new QToolBar( this );
-
- bSave = new QToolButton( QPixmap(), "Save", "Save as PNG image", this, SLOT( slotSave() ), tools );
- bSave->setText( "Save as..." );
-
- tools->addSeparator();
-
- bPColor = new QToolButton( QPixmap(), "Choose Pen Color", "Choose Pen Color", this, SLOT( slotColor() ), tools );
- bPColor->setText( "Choose Pen Color..." );
-
- tools->addSeparator();
-
- bPWidth = new QSpinBox( 1, 20, 1, tools );
- QToolTip::add( bPWidth, "Choose Pen Width" );
- connect( bPWidth, SIGNAL( valueChanged( int ) ), this, SLOT( slotWidth( int ) ) );
- bPWidth->setValue( 3 );
-
- tools->addSeparator();
-
- bClear = new QToolButton( QPixmap(), "Clear Screen", "Clear Screen", this, SLOT( slotClear() ), tools );
- bClear->setText( "Clear Screen" );
- }
-
- /*
-
- Scribble::Scribble( QWidget *parent, const char *name )
- : QMainWindow( parent, name )
- {
- canvas = new Canvas( this );
- setCentralWidget( canvas );
-
- QToolBar *tools = new QToolBar( this );
-
- bSave = new QPushButton( "Save as...", tools );
-
- tools->addSeparator();
-
- bPColor = new QPushButton( "Choose Pen Color...", tools );
- // bPColor->setText( "Choose Pen Color..." );
-
- tools->addSeparator();
-
- bPWidth = new QSpinBox( 1, 20, 1, tools );
- QToolTip::add( bPWidth, "Choose Pen Width" );
- connect( bPWidth, SIGNAL( valueChanged( int ) ), this, SLOT( slotWidth( int ) ) );
- bPWidth->setValue( 3 );
-
- tools->addSeparator();
-
- bClear = new QPushButton( "Clear Screen", tools );
- QObject::connect( bSave, SIGNAL( clicked() ), this, SLOT( slotSave() ) );
- QObject::connect( bPColor, SIGNAL( clicked() ), this, SLOT( slotColor() ) );
- QObject::connect( bClear, SIGNAL( clicked() ), this, SLOT( slotClear() ) );
-
- }
-
- */
- void Scribble::slotSave()
- {
- QPopupMenu *menu = new QPopupMenu( 0 );
- QIntDict<QString> formats;
- formats.setAutoDelete( TRUE );
-
- for ( unsigned int i = 0; i < QImageIO::outputFormats().count(); i++ ) {
- QString str = QString( QImageIO::outputFormats().at( i ) );
- formats.insert( menu->insertItem( QString( "%1..." ).arg( str ) ), new QString( str ) );
- }
-
- menu->setMouseTracking( TRUE );
- int id = menu->exec( bSave->mapToGlobal( QPoint( 0, bSave->height() + 1 ) ) );
-
- if ( id != -1 ) {
- QString format = *formats[ id ];
-
- QString filename = QFileDialog::getSaveFileName( QString::null, QString( "*.%1" ).arg( format.lower() ), this );
- if ( !filename.isEmpty() )
- canvas->save( filename, format );
- }
-
- delete menu;
- }
-
- void Scribble::slotColor()
- {
- QColor c = QColorDialog::getColor( canvas->penColor(), this );
- canvas->setPenColor( c );
- }
-
- void Scribble::slotWidth( int w )
- {
- canvas->setPenWidth( w );
- }
-
- void Scribble::slotClear()
- {
- canvas->clearScreen();
- }
-