Add Qt3 development HEAD version

5 files changed, 344 insertions, 0 deletions

diff --git a/examples/scribble/main.cpp b/examples/scribble/main.cpp
new file mode 100644
index 0000000..9f347fe
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+++ b/examples/scribble/main.cpp
@@ -0,0 +1,29 @@
+/****************************************************************************
+**
+** Copyright (C) 1992-2008 Trolltech ASA.  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 "scribble.h"
+#include <qapplication.h>
+
+
+int main( int argc, char **argv )
+{
+    QApplication a( argc, argv );
+
+    Scribble scribble;
+
+    scribble.resize( 500, 350 );
+    scribble.setCaption("Qt Example - Scribble");
+    a.setMainWidget( &scribble );
+    if ( QApplication::desktop()->width() > 550
+	 && QApplication::desktop()->height() > 366 )
+	scribble.show();
+    else
+	scribble.showMaximized();
+    return a.exec();
+}
diff --git a/examples/scribble/scribble.cpp b/examples/scribble/scribble.cpp
new file mode 100644
index 0000000..412a892
--- /dev/null
+++ b/examples/scribble/scribble.cpp
@@ -0,0 +1,187 @@
+/****************************************************************************
+**
+** Copyright (C) 1992-2008 Trolltech ASA.  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 "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>
+
+const bool no_writing = FALSE;
+
+Canvas::Canvas( QWidget *parent, const char *name )
+    : QWidget( parent, name, WStaticContents ), pen( Qt::red, 3 ), polyline(3),
+      mousePressed( FALSE ), buffer( width(), height() )
+{
+
+    if ((qApp->argc() > 0) && !buffer.load(qApp->argv()[1]))
+	buffer.fill( colorGroup().base() );
+    setBackgroundMode( QWidget::PaletteBase );
+#ifndef QT_NO_CURSOR
+    setCursor( Qt::crossCursor );
+#endif
+}
+
+void Canvas::save( const QString &filename, const QString &format )
+{
+    if ( !no_writing )
+	buffer.save( filename, format.upper() );
+}
+
+void Canvas::clearScreen()
+{
+    buffer.fill( colorGroup().base() );
+    repaint( FALSE );
+}
+
+void Canvas::mousePressEvent( QMouseEvent *e )
+{
+    mousePressed = TRUE;
+    polyline[2] = polyline[1] = polyline[0] = e->pos();
+}
+
+void Canvas::mouseReleaseEvent( QMouseEvent * )
+{
+    mousePressed = FALSE;
+}
+
+void Canvas::mouseMoveEvent( QMouseEvent *e )
+{
+    if ( mousePressed ) {
+	QPainter painter;
+	painter.begin( &buffer );
+	painter.setPen( pen );
+	polyline[2] = polyline[1];
+	polyline[1] = polyline[0];
+	polyline[0] = e->pos();
+	painter.drawPolyline( polyline );
+	painter.end();
+
+	QRect r = polyline.boundingRect();
+	r = r.normalize();
+	r.setLeft( r.left() - penWidth() );
+	r.setTop( r.top() - penWidth() );
+	r.setRight( r.right() + penWidth() );
+	r.setBottom( r.bottom() + penWidth() );
+
+	bitBlt( this, r.x(), r.y(), &buffer, r.x(), r.y(), r.width(), r.height() );
+    }
+}
+
+void Canvas::resizeEvent( QResizeEvent *e )
+{
+    QWidget::resizeEvent( e );
+
+    int w = width() > buffer.width() ?
+	    width() : buffer.width();
+    int h = height() > buffer.height() ?
+	    height() : buffer.height();
+
+    QPixmap tmp( buffer );
+    buffer.resize( w, h );
+    buffer.fill( colorGroup().base() );
+    bitBlt( &buffer, 0, 0, &tmp, 0, 0, tmp.width(), tmp.height() );
+}
+
+void Canvas::paintEvent( QPaintEvent *e )
+{
+    QWidget::paintEvent( e );
+
+    QMemArray<QRect> rects = e->region().rects();
+    for ( uint i = 0; i < rects.count(); i++ ) {
+	QRect r = rects[(int)i];
+	bitBlt( this, r.x(), r.y(), &buffer, r.x(), r.y(), r.width(), r.height() );
+    }
+}
+
+//------------------------------------------------------
+
+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" );
+}
+
+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 );
+    if ( c.isValid() )
+	canvas->setPenColor( c );
+}
+
+void Scribble::slotWidth( int w )
+{
+    canvas->setPenWidth( w );
+}
+
+void Scribble::slotClear()
+{
+    canvas->clearScreen();
+}
diff --git a/examples/scribble/scribble.doc b/examples/scribble/scribble.doc
new file mode 100644
index 0000000..6763df2
--- /dev/null
+++ b/examples/scribble/scribble.doc
@@ -0,0 +1,30 @@
+
+/*
+*/
+/*!   \page scribble-example.html
+
+  \ingroup examples
+  \title Simple Painting Application
+
+  This example implements the famous scribble example. You can draw around
+  in the canvas with different pens and save the result as picture.
+
+  <hr>
+
+  Header file:
+
+  \include scribble/scribble.h
+
+  <hr>
+
+  Implementation:
+
+  \include scribble/scribble.cpp
+
+  <hr>
+
+  Main:
+
+  \include scribble/main.cpp
+*/	
+
diff --git a/examples/scribble/scribble.h b/examples/scribble/scribble.h
new file mode 100644
index 0000000..2b38a61
--- /dev/null
+++ b/examples/scribble/scribble.h
@@ -0,0 +1,87 @@
+/****************************************************************************
+**
+** Copyright (C) 1992-2008 Trolltech ASA.  All rights reserved.
+**
+** This file is part of an example program for Qt.  This example
+** program may be used, distributed and modified without limitation.
+**
+*****************************************************************************/
+
+#ifndef SCRIBBLE_H
+#define SCRIBBLE_H
+
+#include <qmainwindow.h>
+#include <qpen.h>
+#include <qpoint.h>
+#include <qpixmap.h>
+#include <qwidget.h>
+#include <qstring.h>
+#include <qpointarray.h>
+
+class QMouseEvent;
+class QResizeEvent;
+class QPaintEvent;
+class QToolButton;
+class QSpinBox;
+
+class Canvas : public QWidget
+{
+    Q_OBJECT
+
+public:
+    Canvas( QWidget *parent = 0, const char *name = 0 );
+
+    void setPenColor( const QColor &c )
+    { pen.setColor( c ); }
+
+    void setPenWidth( int w )
+    { pen.setWidth( w ); }
+
+    QColor penColor()
+    { return pen.color(); }
+
+    int penWidth()
+    { return pen.width(); }
+
+    void save( const QString &filename, const QString &format );
+
+    void clearScreen();
+
+protected:
+    void mousePressEvent( QMouseEvent *e );
+    void mouseReleaseEvent( QMouseEvent *e );
+    void mouseMoveEvent( QMouseEvent *e );
+    void resizeEvent( QResizeEvent *e );
+    void paintEvent( QPaintEvent *e );
+
+    QPen pen;
+    QPointArray polyline;
+
+    bool mousePressed;
+
+    QPixmap buffer;
+
+};
+
+class Scribble : public QMainWindow
+{
+    Q_OBJECT
+
+public:
+    Scribble( QWidget *parent = 0, const char *name = 0 );
+
+protected:
+    Canvas* canvas;
+
+    QSpinBox *bPWidth;
+    QToolButton *bPColor, *bSave, *bClear;
+
+protected slots:
+    void slotSave();
+    void slotColor();
+    void slotWidth( int );
+    void slotClear();
+
+};
+
+#endif
diff --git a/examples/scribble/scribble.pro b/examples/scribble/scribble.pro
new file mode 100644
index 0000000..35304c6
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+++ b/examples/scribble/scribble.pro
@@ -0,0 +1,11 @@
+TEMPLATE	= app
+TARGET		= scribble
+
+CONFIG		+= qt warn_on release
+DEPENDPATH	= ../../include
+
+REQUIRES	= full-config
+
+HEADERS		= scribble.h
+SOURCES		= main.cpp \
+		  scribble.cpp