splitter-example.html
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"><!-- /home/reggie/tmp/qt-3.0-reggie-5401/qt-x11-commercial-3.0.5/examples/splitter/splitter.doc:4 --><html><head><meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"><title>Splitter</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>Splitter</h1> <p> This example shows how to use splitters. With their help users candecide herself/himself, how much space each of the multiple child items should get.<p> <hr><p> Implementation:<p> <pre>/****************************************************************************** $Id: qt/splitter.cpp 3.0.5 edited Oct 12 2001 $**** Copyright (C) 1992-2000 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 <<a href="qapplication-h.html">qapplication.h</a>>#include <<a href="qlabel-h.html">qlabel.h</a>>#include <<a href="qsplitter-h.html">qsplitter.h</a>>#include <<a href="qmultilineedit-h.html">qmultilineedit.h</a>>#include <<a href="qpainter-h.html">qpainter.h</a>>class Test : public <a href="qwidget.html">QWidget</a> {public: Test(QWidget* parent=0, const char* name=0, int f=0); void paintEvent(QPaintEvent* e);private:};<a name="f385"></a>Test::Test(QWidget* parent, const char* name, int f) : <a href="qwidget.html">QWidget</a>(parent, name, f){}<a name="x1240"></a>void Test::<a href="qwidget.html#paintEvent">paintEvent</a>(QPaintEvent* e){ <a href="qpainter.html">QPainter</a> p(this);<a name="x1236"></a> p.<a href="qpainter.html#setClipRect">setClipRect</a>(e->rect()); const int d = 1000; //large number int x1 = 0; int x2 = <a href="qwidget.html#width">width</a>()-1; int y1 = 0; int y2 = <a href="qwidget.html#height">height</a>()-1; int x = (x1+x2)/2;<a name="x1235"></a> p.<a href="qpainter.html#drawLine">drawLine</a>( x, y1, x+d, y1+d ); p.<a href="qpainter.html#drawLine">drawLine</a>( x, y1, x-d, y1+d ); p.<a href="qpainter.html#drawLine">drawLine</a>( x, y2, x+d, y2-d ); p.<a href="qpainter.html#drawLine">drawLine</a>( x, y2, x-d, y2-d ); int y = (y1+y2)/2; p.<a href="qpainter.html#drawLine">drawLine</a>( x1, y, x1+d, y+d ); p.<a href="qpainter.html#drawLine">drawLine</a>( x1, y, x1+d, y-d ); p.<a href="qpainter.html#drawLine">drawLine</a>( x2, y, x2-d, y+d ); p.<a href="qpainter.html#drawLine">drawLine</a>( x2, y, x2-d, y-d );}int main( int argc, char ** argv ){ <a href="qapplication.html">QApplication</a> a( argc, argv ); <a href="qsplitter.html">QSplitter</a> *s1 = new <a href="qsplitter.html">QSplitter</a>( QSplitter::Vertical, 0 , "main" ); <a href="qsplitter.html">QSplitter</a> *s2 = new <a href="qsplitter.html">QSplitter</a>( QSplitter::Horizontal, s1, "top" ); Test *t1 = new Test( s2, "topLeft" );<a name="x1241"></a> t1-><a href="qwidget.html#setBackgroundColor">setBackgroundColor</a>( Qt::blue.light( 180 ) );<a name="x1244"></a> t1-><a href="qwidget.html#setMinimumSize">setMinimumSize</a>( 50, 0 ); Test *t2 = new Test( s2, "topRight" ); t2-><a href="qwidget.html#setBackgroundColor">setBackgroundColor</a>( Qt::green.light( 180 ) );<a name="x1239"></a> s2-><a href="qsplitter.html#setResizeMode">setResizeMode</a>( t2, QSplitter::KeepSize );<a name="x1237"></a> s2-><a href="qsplitter.html#moveToFirst">moveToFirst</a>( t2 ); <a href="qsplitter.html">QSplitter</a> *s3 = new <a href="qsplitter.html">QSplitter</a>( QSplitter::Horizontal, s1, "bottom" ); Test *t3 = new Test( s3, "bottomLeft" ); t3-><a href="qwidget.html#setBackgroundColor">setBackgroundColor</a>( Qt::red ); Test *t4 = new Test( s3, "bottomMiddle" ); t4-><a href="qwidget.html#setBackgroundColor">setBackgroundColor</a>( Qt::white ); Test *t5 = new Test( s3, "bottomRight" );<a name="x1243"></a> t5-><a href="qwidget.html#setMaximumHeight">setMaximumHeight</a>( 250 ); t5-><a href="qwidget.html#setMinimumSize">setMinimumSize</a>( 80, 50 ); t5-><a href="qwidget.html#setBackgroundColor">setBackgroundColor</a>( Qt::yellow );#ifdef Q_WS_QWS // Qt/Embedded XOR drawing not yet implemented.<a name="x1238"></a> s1-><a href="qsplitter.html#setOpaqueResize">setOpaqueResize</a>( TRUE );#endif s2-><a href="qsplitter.html#setOpaqueResize">setOpaqueResize</a>( TRUE ); s3-><a href="qsplitter.html#setOpaqueResize">setOpaqueResize</a>( TRUE ); a.<a href="qapplication.html#setMainWidget">setMainWidget</a>( s1 ); s1-><a href="qwidget.html#setCaption">setCaption</a>("Qt Example - Splitters"); s1-><a href="qwidget.html#show">show</a>(); int result = a.<a href="qapplication.html#exec">exec</a>(); delete s1; return result;}</pre><p>See also <a href="examples.html">Examples</a>.<!-- eof --><p><address><hr><div align=center><table width=100% cellspacing=0 border=0><tr><td>Copyright © 2002 <a href="http://www.trolltech.com">Trolltech</a><td><a href="http://www.trolltech.com/trademarks.html">Trademarks</a><td align=right><div align=right>Qt version 3.0.5</div></table></div></address></body></html>⌨️ 快捷键说明
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