<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> <!-- /home/espenr/tmp/qt-3.2-espenr-29145/qt-x11-free-3.2.3/src/iconview/qiconview.cpp:2237 --> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> <title>iconview/simple_dd/main.cpp Example File</title> <style type="text/css"><!-- h3.fn,span.fn { margin-left: 1cm; text-indent: -1cm; } a:link { color: #004faf; text-decoration: none } a:visited { color: #672967; text-decoration: none } body { background: #ffffff; color: black; } --></style> </head> <body> <table border="0" cellpadding="0" cellspacing="0" width="100%"> <tr bgcolor="#E5E5E5"> <td valign=center> <a href="index.html"> <font color="#004faf">Home</font></a> | <a href="classes.html"> <font color="#004faf">All Classes</font></a> | <a href="mainclasses.html"> <font color="#004faf">Main Classes</font></a> | <a href="annotated.html"> <font color="#004faf">Annotated</font></a> | <a href="groups.html"> <font color="#004faf">Grouped Classes</font></a> | <a href="functions.html"> <font color="#004faf">Functions</font></a> </td> <td align="right" valign="center"><img src="logo32.png" align="right" width="64" height="32" border="0"></td></tr></table><h1 align=center>iconview/simple_dd/main.cpp Example File</h1> <pre>/**************************************************************************** ** $Id: qt/main.cpp 3.2.3 edited May 13 09:08 $ ** ** Copyright (C) 1992-2001 Trolltech AS. 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 "main.h" const char* red_icon[]={ "16 16 2 1", "r c red", ". c None", "................", "................", "..rrrrrrrrrrrr..", "..rrrrrrrrrrrr..", "..rrrrrrrrrrrr..", "..rrr......rrr..", "..rrr......rrr..", "..rrr......rrr..", "..rrr......rrr..", "..rrr......rrr..", "..rrr......rrr..", "..rrrrrrrrrrrr..", "..rrrrrrrrrrrr..", "..rrrrrrrrrrrr..", "................", "................"}; const char* blue_icon[]={ "16 16 2 1", "b c blue", ". c None", "................", "................", "..bbbbbbbbbbbb..", "..bbbbbbbbbbbb..", "..bbbbbbbbbbbb..", "..bbb......bbb..", "..bbb......bbb..", "..bbb......bbb..", "..bbb......bbb..", "..bbb......bbb..", "..bbb......bbb..", "..bbbbbbbbbbbb..", "..bbbbbbbbbbbb..", "..bbbbbbbbbbbb..", "................", "................"}; const char* green_icon[]={ "16 16 2 1", "g c green", ". c None", "................", "................", "..gggggggggggg..", "..gggggggggggg..", "..gggggggggggg..", "..ggg......ggg..", "..ggg......ggg..", "..ggg......ggg..", "..ggg......ggg..", "..ggg......ggg..", "..ggg......ggg..", "..gggggggggggg..", "..gggggggggggg..", "..gggggggggggg..", "................", "................"}; // ListBox -- low level drag and drop <a name="f2"></a>DDListBox::DDListBox( <a href="qwidget.html">QWidget</a> * parent, const char * name, WFlags f ) : <a href="qlistbox.html">QListBox</a>( parent, name, f ) { <a href="qwidget.html#setAcceptDrops">setAcceptDrops</a>( TRUE ); dragging = FALSE; } <a name="x2709"></a>void DDListBox::<a href="qwidget.html#dragEnterEvent">dragEnterEvent</a>( <a href="qdragenterevent.html">QDragEnterEvent</a> *evt ) { <a name="x2707"></a> if ( QTextDrag::<a href="qtextdrag.html#canDecode">canDecode</a>( evt ) ) <a name="x2699"></a> evt-><a href="qdragmoveevent.html#accept">accept</a>(); } <a name="x2710"></a>void DDListBox::<a href="qwidget.html#dropEvent">dropEvent</a>( <a href="qdropevent.html">QDropEvent</a> *evt ) { <a href="qstring.html">QString</a> text; <a name="x2708"></a> if ( QTextDrag::<a href="qtextdrag.html#decode">decode</a>( evt, text ) ) <a href="qlistbox.html#insertItem">insertItem</a>( text ); } <a name="x2712"></a>void DDListBox::<a href="qwidget.html#mousePressEvent">mousePressEvent</a>( <a href="qmouseevent.html">QMouseEvent</a> *evt ) { QListBox::<a href="qwidget.html#mousePressEvent">mousePressEvent</a>( evt ); dragging = TRUE; } <a name="x2711"></a>void DDListBox::<a href="qwidget.html#mouseMoveEvent">mouseMoveEvent</a>( <a href="qmouseevent.html">QMouseEvent</a> * ) { if ( dragging ) { <a href="qdragobject.html">QDragObject</a> *d = new <a href="qtextdrag.html">QTextDrag</a>( currentText(), this ); <a name="x2698"></a> d-><a href="qdragobject.html#dragCopy">dragCopy</a>(); // do NOT delete d. dragging = FALSE; } } // IconViewIcon -- high level drag and drop <a name="x2702"></a>bool DDIconViewItem::<a href="qiconviewitem.html#acceptDrop">acceptDrop</a>( const <a href="qmimesource.html">QMimeSource</a> *mime ) const { <a name="x2705"></a> if ( mime-><a href="qmimesource.html#provides">provides</a>( "text/plain" ) ) return TRUE; return FALSE; } <a name="x2703"></a>void DDIconViewItem::<a href="qiconviewitem.html#dropped">dropped</a>( <a href="qdropevent.html">QDropEvent</a> *evt, const <a href="qvaluelist.html">QValueList</a><QIconDragItem>& ) { <a href="qstring.html">QString</a> label; if ( QTextDrag::<a href="qtextdrag.html#decode">decode</a>( evt, label ) ) setText( label ); } // IconView -- high level drag and drop <a name="x2700"></a>QDragObject *DDIconView::<a href="qiconview.html#dragObject">dragObject</a>() { return new <a href="qtextdrag.html">QTextDrag</a>( <a href="qiconview.html#currentItem">currentItem</a>()->text(), this ); } void <a name="f1"></a>DDIconView::slotNewItem( <a href="qdropevent.html">QDropEvent</a> *evt, const <a href="qvaluelist.html">QValueList</a><QIconDragItem>& ) { <a href="qstring.html">QString</a> label; if ( QTextDrag::<a href="qtextdrag.html#decode">decode</a>( evt, label ) ) { DDIconViewItem *item = new DDIconViewItem( this, label ); <a name="x2704"></a> item-><a href="qiconviewitem.html#setRenameEnabled">setRenameEnabled</a>( TRUE ); } } int main( int argc, char *argv[] ) { <a href="qapplication.html">QApplication</a> app( argc, argv ); // Create and show the widgets <a href="qsplitter.html">QSplitter</a> *split = new <a href="qsplitter.html">QSplitter</a>(); DDIconView *iv = new DDIconView( split ); (void) new DDListBox( split ); app.<a href="qapplication.html#setMainWidget">setMainWidget</a>( split ); split-><a href="qwidget.html#resize">resize</a>( 600, 400 ); split-><a href="qwidget.html#show">show</a>(); // Set up the connection so that we can drop items into the icon view QObject::<a href="qobject.html#connect">connect</a>( <a name="x2701"></a> iv, SIGNAL(<a href="qiconview.html#dropped">dropped</a>(QDropEvent*, const <a href="qvaluelist.html">QValueList</a><QIconDragItem>&)), iv, SLOT(slotNewItem(QDropEvent*, const <a href="qvaluelist.html">QValueList</a><QIconDragItem>&))); // Populate the QIconView with icons DDIconViewItem *item; item = new DDIconViewItem( iv, "Red", QPixmap( red_icon ) ); item-><a href="qiconviewitem.html#setRenameEnabled">setRenameEnabled</a>( TRUE ); item = new DDIconViewItem( iv, "Green", QPixmap( green_icon ) ); item-><a href="qiconviewitem.html#setRenameEnabled">setRenameEnabled</a>( TRUE ); item = new DDIconViewItem( iv, "Blue", QPixmap( blue_icon ) ); item-><a href="qiconviewitem.html#setRenameEnabled">setRenameEnabled</a>( TRUE ); return app.<a href="qapplication.html#exec">exec</a>(); } </pre><!-- eof --> <p><address><hr><div align=center> <table width=100% cellspacing=0 border=0><tr> <td>Copyright © 2003 <a href="troll.html">Trolltech</a><td align=center><a href="trademarks.html">Trademarks</a> <td align=right><div align=right>Qt 3.2.3</div> </table></div></address></body> </html>