Add Qt3 development HEAD version

4 files changed, 370 insertions, 0 deletions

diff --git a/examples/progress/README b/examples/progress/README
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+This example demonstrates the use of QProgressBar when performing
+operations which may take a long time to complete.
+
+The progress dialog only appears if the estimated completion time
+is 3-4 seconds.
+
diff --git a/examples/progress/progress.cpp b/examples/progress/progress.cpp
new file mode 100644
index 0000000..f7e7232
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+++ b/examples/progress/progress.cpp
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+/****************************************************************************
+**
+** 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 <qprogressdialog.h>
+#include <qapplication.h>
+#include <qmenubar.h>
+#include <qpopupmenu.h>
+#include <qpainter.h>
+#include <stdlib.h>
+
+class AnimatedThingy : public QLabel {
+public:
+    AnimatedThingy( QWidget* parent, const QString& s ) :
+	QLabel(parent),
+	label(s),
+	step(0)
+    {
+        setBackgroundColor(white);
+	label+="\n... and wasting CPU\nwith this animation!\n";
+
+	for (int i=0; i<nqix; i++)
+	    ox[0][i] = oy[0][i] = ox[1][i] = oy[1][i] = 0;
+	x0 = y0 = x1 = y1 = 0;
+	dx0 = rand()%8+2;
+	dy0 = rand()%8+2;
+	dx1 = rand()%8+2;
+	dy1 = rand()%8+2;
+    }
+
+    void show()
+    {
+	if (!isVisible()) startTimer(100);
+	QWidget::show();
+    }
+
+    void hide()
+    {
+	QWidget::hide();
+	killTimers();
+    }
+
+    QSize sizeHint() const
+    {
+	return QSize(120,100);
+    }
+
+protected:
+    void timerEvent(QTimerEvent*)
+    {
+	QPainter p(this);
+	QPen pn=p.pen();
+	pn.setWidth(2);
+	pn.setColor(backgroundColor());
+	p.setPen(pn);
+
+	step = (step + 1) % nqix;
+
+	p.drawLine(ox[0][step], oy[0][step], ox[1][step], oy[1][step]);
+
+	inc(x0, dx0, width());
+	inc(y0, dy0, height());
+	inc(x1, dx1, width());
+	inc(y1, dy1, height());
+	ox[0][step] = x0;
+	oy[0][step] = y0;
+	ox[1][step] = x1;
+	oy[1][step] = y1;
+
+	QColor c;
+	c.setHsv( (step*255)/nqix, 255, 255 ); // rainbow effect
+	pn.setColor(c);
+	p.setPen(pn);
+	p.drawLine(ox[0][step], oy[0][step], ox[1][step], oy[1][step]);
+	p.setPen(colorGroup().text());
+	p.drawText(rect(), AlignCenter, label);
+    }
+
+    void paintEvent(QPaintEvent* event)
+    {
+	QPainter p(this);
+	QPen pn=p.pen();
+	pn.setWidth(2);
+	p.setPen(pn);
+	p.setClipRect(event->rect());
+	for (int i=0; i<nqix; i++) {
+	    QColor c;
+	    c.setHsv( (i*255)/nqix, 255, 255 ); // rainbow effect
+	    pn.setColor(c);
+	    p.setPen(pn);
+	    p.drawLine(ox[0][i], oy[0][i], ox[1][i], oy[1][i]);
+	}
+	p.setPen(colorGroup().text());
+	p.drawText(rect(), AlignCenter, label);
+    }
+
+private:
+    void inc(int& x, int& dx, int b)
+    {
+	x+=dx;
+	if (x<0) { x=0; dx=rand()%8+2; }
+	else if (x>=b) { x=b-1; dx=-(rand()%8+2); }
+    }
+
+    enum {nqix=10};
+    int ox[2][nqix];
+    int oy[2][nqix];
+    int x0,y0,x1,y1;
+    int dx0,dy0,dx1,dy1;
+    QString label;
+    int step;
+};
+
+
+class CPUWaster : public QWidget
+{
+    Q_OBJECT
+
+    enum { first_draw_item = 1000, last_draw_item = 1006 };
+
+    int drawItemRects(int id)
+    {
+	int n = id - first_draw_item;
+	int r = 100;
+	while (n--) r*=(n%3 ? 5 : 4);
+	return r;
+    }
+    QString drawItemText(int id)
+    {
+	QString str;
+	str.sprintf("%d Rectangles", drawItemRects(id));
+	return str;
+    }
+
+public:
+    CPUWaster() :
+	pb(0)
+    {
+	menubar = new QMenuBar( this, "menu" );
+	Q_CHECK_PTR( menubar );
+
+	QPopupMenu* file = new QPopupMenu();
+	Q_CHECK_PTR( file );
+	menubar->insertItem( "&File", file );
+	for (int i=first_draw_item; i<=last_draw_item; i++)
+	    file->insertItem( drawItemText(i), i );
+	connect( menubar, SIGNAL(activated(int)), this, SLOT(doMenuItem(int)) );
+	file->insertSeparator();
+	file->insertItem( "Quit", qApp,  SLOT(quit()) );
+
+	options = new QPopupMenu();
+	Q_CHECK_PTR( options );
+	menubar->insertItem( "&Options", options );
+	td_id = options->insertItem( "Timer driven", this, SLOT(timerDriven()) );
+	ld_id = options->insertItem( "Loop driven", this, SLOT(loopDriven()) );
+	options->insertSeparator();
+	dl_id = options->insertItem( "Default label", this, SLOT(defaultLabel()) );
+	cl_id = options->insertItem( "Custom label", this, SLOT(customLabel()) );
+	options->insertSeparator();
+	md_id = options->insertItem( "No minimum duration", this, SLOT(toggleMinimumDuration()) );
+	options->setCheckable( TRUE );
+	loopDriven();
+	defaultLabel();
+
+	setFixedSize( 400, 300 );
+
+	setBackgroundColor( black );
+    }
+
+public slots:
+    void doMenuItem(int id)
+    {
+	if (id >= first_draw_item && id <= last_draw_item)
+	    draw(drawItemRects(id));
+    }
+
+    void stopDrawing() { got_stop = TRUE; }
+
+    void timerDriven()
+    {
+	timer_driven = TRUE;
+	options->setItemChecked( td_id, TRUE );
+	options->setItemChecked( ld_id, FALSE );
+    }
+
+    void loopDriven()
+    {
+	timer_driven = FALSE;
+	options->setItemChecked( ld_id, TRUE );
+	options->setItemChecked( td_id, FALSE );
+    }
+
+    void defaultLabel()
+    {
+	default_label = TRUE;
+	options->setItemChecked( dl_id, TRUE );
+	options->setItemChecked( cl_id, FALSE );
+    }
+
+    void customLabel()
+    {
+	default_label = FALSE;
+	options->setItemChecked( dl_id, FALSE );
+	options->setItemChecked( cl_id, TRUE );
+    }
+
+    void toggleMinimumDuration()
+    {
+	options->setItemChecked( md_id,
+	   !options->isItemChecked( md_id ) );
+    }
+
+private:
+    void timerEvent( QTimerEvent* )
+    {
+	if (!got_stop)
+	    pb->setProgress( pb->totalSteps() - rects );
+	rects--;
+
+	{
+	    QPainter p(this);
+
+	    int ww = width();
+	    int wh = height();
+
+	    if ( ww > 8 && wh > 8 ) {
+		QColor c(rand()%255, rand()%255, rand()%255);
+		int x = rand() % (ww-8);
+		int y = rand() % (wh-8);
+		int w = rand() % (ww-x);
+		int h = rand() % (wh-y);
+		p.fillRect( x, y, w, h, c );
+	    }
+	}
+
+	if (!rects || got_stop) {
+	    if (!got_stop)
+		pb->setProgress( pb->totalSteps() );
+	    QPainter p(this);
+	    p.fillRect(0, 0, width(), height(), backgroundColor());
+	    enableDrawingItems(TRUE);
+	    killTimers();
+	    delete pb;
+	    pb = 0;
+	}
+    }
+
+    QProgressDialog* newProgressDialog( const char* label, int steps, bool modal )
+    {
+	QProgressDialog *d = new QProgressDialog(label, "Cancel", steps, this,
+						 "progress", modal);
+        if ( options->isItemChecked( md_id ) )
+	    d->setMinimumDuration(0);
+	if ( !default_label )
+	    d->setLabel( new AnimatedThingy(d,label) );
+	return d;
+    }
+
+    void enableDrawingItems(bool yes)
+    {
+	for (int i=first_draw_item; i<=last_draw_item; i++) {
+	    menubar->setItemEnabled(i, yes);
+	}
+    }
+
+    void draw(int n)
+    {
+	if ( timer_driven ) {
+	    if ( pb ) {
+		qWarning("This cannot happen!");
+		return;
+	    }
+	    rects = n;
+	    pb = newProgressDialog("Drawing rectangles.\n"
+				   "Using timer event.", n, FALSE);
+	    pb->setCaption("Please Wait");
+	    connect(pb, SIGNAL(cancelled()), this, SLOT(stopDrawing()));
+	    enableDrawingItems(FALSE);
+	    startTimer(0);
+	    got_stop = FALSE;
+	} else {
+	    QProgressDialog* lpb = newProgressDialog(
+			"Drawing rectangles.\nUsing loop.", n, TRUE);
+	    lpb->setCaption("Please Wait");
+
+	    QPainter p(this);
+	    for (int i=0; i<n; i++) {
+		lpb->setProgress(i);
+		if ( lpb->wasCancelled() )
+		    break;
+
+		QColor c(rand()%255, rand()%255, rand()%255);
+		int x = rand()%(width()-8);
+		int y = rand()%(height()-8);
+		int w = rand()%(width()-x);
+		int h = rand()%(height()-y);
+		p.fillRect(x,y,w,h,c);
+	    }
+
+	    p.fillRect(0, 0, width(), height(), backgroundColor());
+
+	    delete lpb;
+	}
+    }
+
+    QMenuBar* menubar;
+    QProgressDialog* pb;
+    QPopupMenu* options;
+    int td_id, ld_id;
+    int dl_id, cl_id;
+    int md_id;
+    int rects;
+    bool timer_driven;
+    bool default_label;
+    bool got_stop;
+};
+
+int main( int argc, char **argv )
+{
+    QApplication a( argc, argv );
+
+    int wincount = argc > 1 ? atoi(argv[1]) : 1;
+
+    for ( int i=0; i<wincount; i++ ) {
+	CPUWaster* cpuw = new CPUWaster;
+	if ( i == 0 ) a.setMainWidget(cpuw);
+	cpuw->show();
+    }
+    return a.exec();
+}
+
+#include "progress.moc"
diff --git a/examples/progress/progress.doc b/examples/progress/progress.doc
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+++ b/examples/progress/progress.doc
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+/*
+*/
+/*!   \page progress-example.html
+
+  \ingroup examples
+  \title Progress Bar and Dialog Example
+
+  This example displays either a simple (text-only) or a
+  custom-labelled (user-supplied widget) progress dialog.  It also
+  demonstrates simple use of menus.
+  <hr>
+
+  Implementation:
+
+  \include progress/progress.cpp
+*/
+
diff --git a/examples/progress/progress.pro b/examples/progress/progress.pro
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index 0000000..d9217e2
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+++ b/examples/progress/progress.pro
@@ -0,0 +1,10 @@
+TEMPLATE	= app
+TARGET		= progress
+
+CONFIG		+= qt warn_on release
+DEPENDPATH	= ../../include
+
+REQUIRES	= full-config
+
+HEADERS		=
+SOURCES		= progress.cpp