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135 lines
3.6 KiB
135 lines
3.6 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 Qt. 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 "canvas.h"
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#include "scribble.h"
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#include <qapplication.h>
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#include <qevent.h>
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#include <qpainter.h>
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#include <qtoolbar.h>
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#include <qtoolbutton.h>
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#include <qspinbox.h>
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#include <qtooltip.h>
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#include <qrect.h>
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#include <qpoint.h>
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#include <qcolordialog.h>
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#include <qfiledialog.h>
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#include <qcursor.h>
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#include <qimage.h>
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#include <qstrlist.h>
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#include <qpopupmenu.h>
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#include <qintdict.h>
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Scribble::Scribble( QWidget *parent, const char *name )
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: QMainWindow( parent, name )
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{
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canvas = new Canvas( this );
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setCentralWidget( canvas );
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QToolBar *tools = new QToolBar( this );
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bSave = new QToolButton( QPixmap(), "Save", "Save as PNG image", this, SLOT( slotSave() ), tools );
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bSave->setText( "Save as..." );
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tools->addSeparator();
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bPColor = new QToolButton( QPixmap(), "Choose Pen Color", "Choose Pen Color", this, SLOT( slotColor() ), tools );
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bPColor->setText( "Choose Pen Color..." );
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tools->addSeparator();
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bPWidth = new QSpinBox( 1, 20, 1, tools );
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QToolTip::add( bPWidth, "Choose Pen Width" );
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connect( bPWidth, SIGNAL( valueChanged( int ) ), this, SLOT( slotWidth( int ) ) );
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bPWidth->setValue( 3 );
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tools->addSeparator();
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bClear = new QToolButton( QPixmap(), "Clear Screen", "Clear Screen", this, SLOT( slotClear() ), tools );
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bClear->setText( "Clear Screen" );
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}
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/*
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Scribble::Scribble( QWidget *parent, const char *name )
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: QMainWindow( parent, name )
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{
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canvas = new Canvas( this );
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setCentralWidget( canvas );
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QToolBar *tools = new QToolBar( this );
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bSave = new QPushButton( "Save as...", tools );
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tools->addSeparator();
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bPColor = new QPushButton( "Choose Pen Color...", tools );
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// bPColor->setText( "Choose Pen Color..." );
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tools->addSeparator();
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bPWidth = new QSpinBox( 1, 20, 1, tools );
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QToolTip::add( bPWidth, "Choose Pen Width" );
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connect( bPWidth, SIGNAL( valueChanged( int ) ), this, SLOT( slotWidth( int ) ) );
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bPWidth->setValue( 3 );
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tools->addSeparator();
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bClear = new QPushButton( "Clear Screen", tools );
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QObject::connect( bSave, SIGNAL( clicked() ), this, SLOT( slotSave() ) );
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QObject::connect( bPColor, SIGNAL( clicked() ), this, SLOT( slotColor() ) );
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QObject::connect( bClear, SIGNAL( clicked() ), this, SLOT( slotClear() ) );
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}
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*/
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void Scribble::slotSave()
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{
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QPopupMenu *menu = new QPopupMenu( 0 );
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QIntDict<QString> formats;
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formats.setAutoDelete( TRUE );
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for ( unsigned int i = 0; i < QImageIO::outputFormats().count(); i++ ) {
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QString str = QString( QImageIO::outputFormats().at( i ) );
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formats.insert( menu->insertItem( QString( "%1..." ).arg( str ) ), new QString( str ) );
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}
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menu->setMouseTracking( TRUE );
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int id = menu->exec( bSave->mapToGlobal( QPoint( 0, bSave->height() + 1 ) ) );
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if ( id != -1 ) {
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QString format = *formats[ id ];
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QString filename = QFileDialog::getSaveFileName( QString::null, QString( "*.%1" ).arg( format.lower() ), this );
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if ( !filename.isEmpty() )
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canvas->save( filename, format );
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}
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delete menu;
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}
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void Scribble::slotColor()
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{
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QColor c = QColorDialog::getColor( canvas->penColor(), this );
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canvas->setPenColor( c );
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}
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void Scribble::slotWidth( int w )
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{
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canvas->setPenWidth( w );
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}
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void Scribble::slotClear()
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{
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canvas->clearScreen();
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}
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