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60 lines
1.4 KiB
60 lines
1.4 KiB
/****************************************************************************
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**
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** Implementation of a widget that draws a rubberband. Designed to be used
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** in an X11 overlay visual
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**
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** Copyright (C) 1999-2008 Trolltech ASA. All rights reserved.
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**
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** This file is part of an example program for TQt. 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 "rubberbandwidget.h"
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#include <ntqpainter.h>
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RubberbandWidget::RubberbandWidget( TQColor transparentColor, TQWidget *parent,
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const char *name, WFlags f )
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: TQWidget( parent, name, f )
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{
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setBackgroundColor( transparentColor );
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on = FALSE;
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}
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void RubberbandWidget::mousePressEvent( TQMouseEvent* e )
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{
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p1 = e->pos();
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p2 = p1;
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p3 = p1;
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on = TRUE;
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setMouseTracking( TRUE );
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}
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void RubberbandWidget::mouseMoveEvent( TQMouseEvent* e )
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{
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if ( on ) {
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p2 = e->pos();
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TQPainter p( this );
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// Erase last drawn rubberband:
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p.setPen( TQPen( backgroundColor(), 3 ) );
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p.drawRect( TQRect( p1, p3 ) );
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// Draw the new one:
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p.setPen( TQPen( white, 3 ) );
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p.drawRect( TQRect(p1, p2) );
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p3 = p2;
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}
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}
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void RubberbandWidget::mouseReleaseEvent( TQMouseEvent* )
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{
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if ( on ) {
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TQPainter p ( this );
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p.eraseRect( rect() );
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}
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on = FALSE;
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setMouseTracking( FALSE );
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}
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