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author | Timothy Pearson <kb9vqf@pearsoncomputing.net> | 2011-11-08 12:31:36 -0600 |
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committer | Timothy Pearson <kb9vqf@pearsoncomputing.net> | 2011-11-08 12:31:36 -0600 |
commit | d796c9dd933ab96ec83b9a634feedd5d32e1ba3f (patch) | |
tree | 6e3dcca4f77e20ec8966c666aac7c35bd4704053 /examples/dragdrop/dropsite.cpp | |
download | tqt3-d796c9dd933ab96ec83b9a634feedd5d32e1ba3f.tar.gz tqt3-d796c9dd933ab96ec83b9a634feedd5d32e1ba3f.zip |
Test conversion to TQt3 from Qt3 8c6fc1f8e35fd264dd01c582ca5e7549b32ab731
Diffstat (limited to 'examples/dragdrop/dropsite.cpp')
-rw-r--r-- | examples/dragdrop/dropsite.cpp | 158 |
1 files changed, 158 insertions, 0 deletions
diff --git a/examples/dragdrop/dropsite.cpp b/examples/dragdrop/dropsite.cpp new file mode 100644 index 000000000..a1df3de21 --- /dev/null +++ b/examples/dragdrop/dropsite.cpp @@ -0,0 +1,158 @@ +/**************************************************************************** +** +** Drop site example implementation +** +** Created : 979899 +** +** Copyright (C) 1997-2008 Trolltech ASA. All rights reserved. +** +** This file is part of an example program for TQt. This example +** program may be used, distributed and modified without limitation. +** +*****************************************************************************/ + +#include "dropsite.h" +#include "secret.h" +#include <qevent.h> +#include <qpixmap.h> +#include <qdragobject.h> +#include <qimage.h> +#include <qdir.h> + + +DropSite::DropSite( TQWidget * parent, const char * name ) + : TQLabel( parent, name ) +{ + setAcceptDrops(TRUE); +} + + +DropSite::~DropSite() +{ + // nothing necessary +} + + +void DropSite::dragMoveEvent( TQDragMoveEvent *e ) +{ + // Check if you want the drag at e->pos()... + // Give the user some feedback - only copy is possible + e->acceptAction( e->action() == TQDropEvent::Copy ); +} + + +void DropSite::dragEnterEvent( TQDragEnterEvent *e ) +{ + // Check if you want the drag... + if ( SecretDrag::canDecode( e ) + || TQTextDrag::canDecode( e ) + || TQImageDrag::canDecode( e ) + || TQUriDrag::canDecode( e ) ) + { + e->accept(); + } + + + // Give the user some feedback... + TQString t; + const char *f; + for( int i=0; (f=e->format( i )); i++ ) { + if ( *(f) ) { + if ( !t.isEmpty() ) + t += "\n"; + t += f; + } + } + emit message( t ); + setBackgroundColor(white); +} + +void DropSite::dragLeaveEvent( TQDragLeaveEvent * ) +{ + // Give the user some feedback... + emit message(""); + setBackgroundColor(lightGray); +} + + +void DropSite::dropEvent( TQDropEvent * e ) +{ + setBackgroundColor(lightGray); + + // Try to decode to the data you understand... + TQStrList strings; + if ( TQUriDrag::decode( e, strings ) ) { + TQString m("Full URLs:\n"); + for (const char* u=strings.first(); u; u=strings.next()) + m = m + " " + u + '\n'; + TQStringList files; + if ( TQUriDrag::decodeLocalFiles( e, files ) ) { + m += "Files:\n"; + for (TQStringList::Iterator i=files.begin(); i!=files.end(); ++i) + m = m + " " + TQDir::convertSeparators(*i) + '\n'; + } + setText( m ); + setMinimumSize( minimumSize().expandedTo( sizeHint() ) ); + return; + } + + TQString str; + if ( TQTextDrag::decode( e, str ) ) { + setText( str ); + setMinimumSize( minimumSize().expandedTo( sizeHint() ) ); + return; + } + + TQPixmap pm; + if ( TQImageDrag::decode( e, pm ) ) { + setPixmap( pm ); + setMinimumSize( minimumSize().expandedTo( sizeHint() ) ); + return; + } + + if ( SecretDrag::decode( e, str ) ) { + setText( str ); + setMinimumSize( minimumSize().expandedTo( sizeHint() ) ); + return; + } +} + +DragMoviePlayer::DragMoviePlayer( TQDragObject* p ) : + TQObject(p), + dobj(p), + movie("trolltech.gif" ) +{ + movie.connectUpdate(this,SLOT(updatePixmap(const TQRect&))); +} + +void DragMoviePlayer::updatePixmap( const TQRect& ) +{ + dobj->setPixmap(movie.framePixmap()); +} + +void DropSite::mousePressEvent( TQMouseEvent * /*e*/ ) +{ + TQDragObject *drobj; + if ( pixmap() ) { + drobj = new TQImageDrag( pixmap()->convertToImage(), this ); +#if 1 + TQPixmap pm; + pm.convertFromImage(pixmap()->convertToImage().smoothScale( + pixmap()->width()/3,pixmap()->height()/3)); + drobj->setPixmap(pm,TQPoint(-5,-7)); +#else + // Try it. + (void)new DragMoviePlayer(drobj); +#endif + } else { + drobj = new TQTextDrag( text(), this ); + } + drobj->dragCopy(); +} + + +void DropSite::backgroundColorChange( const TQColor & ) +{ + // Reduce flicker by using repaint() rather than update() + repaint(); +} |