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authorTimothy Pearson <kb9vqf@pearsoncomputing.net>2011-07-10 15:24:15 -0500
committerTimothy Pearson <kb9vqf@pearsoncomputing.net>2011-07-10 15:24:15 -0500
commitbd0f3345a938b35ce6a12f6150373b0955b8dd12 (patch)
tree7a520322212d48ebcb9fbe1087e7fca28b76185c /doc/html/scrollview-example.html
downloadqt3-bd0f3345a938b35ce6a12f6150373b0955b8dd12.tar.gz
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+<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
+<!-- /home/espenr/tmp/qt-3.3.8-espenr-2499/qt-x11-free-3.3.8/examples/scrollview/scrollview.doc:4 -->
+<html>
+<head>
+<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
+<title>Scrollview</title>
+<style type="text/css"><!--
+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&nbsp;Classes</font></a>
+ | <a href="mainclasses.html">
+<font color="#004faf">Main&nbsp;Classes</font></a>
+ | <a href="annotated.html">
+<font color="#004faf">Annotated</font></a>
+ | <a href="groups.html">
+<font color="#004faf">Grouped&nbsp;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>Scrollview</h1>
+
+
+<p>
+This example shows how to use Qt's scrollview. This is a widget
+optimized for very large contents.
+<p> <hr>
+<p> Implementation:
+<p> <pre>/****************************************************************************
+** $Id: qt/scrollview.cpp 3.3.8 edited Jan 11 14:37 $
+**
+** Copyright (C) 1992-2007 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 &lt;<a href="qscrollview-h.html">qscrollview.h</a>&gt;
+#include &lt;<a href="qapplication-h.html">qapplication.h</a>&gt;
+#include &lt;<a href="qmenubar-h.html">qmenubar.h</a>&gt;
+#include &lt;<a href="qpopupmenu-h.html">qpopupmenu.h</a>&gt;
+#include &lt;<a href="qpushbutton-h.html">qpushbutton.h</a>&gt;
+#include &lt;<a href="qpainter-h.html">qpainter.h</a>&gt;
+#include &lt;<a href="qpixmap-h.html">qpixmap.h</a>&gt;
+#include &lt;<a href="qmessagebox-h.html">qmessagebox.h</a>&gt;
+#include &lt;<a href="qlayout-h.html">qlayout.h</a>&gt;
+#include &lt;<a href="qlabel-h.html">qlabel.h</a>&gt;
+#include &lt;<a href="qmultilineedit-h.html">qmultilineedit.h</a>&gt;
+#include &lt;<a href="qsizegrip-h.html">qsizegrip.h</a>&gt;
+#include &lt;stdlib.h&gt;
+
+
+static const int style_id = 0x1000;
+static const int lw_id = 0x2000;
+static const int mlw_id = 0x4000;
+static const int mw_id = 0x8000;
+static const int max_lw = 16;
+static const int max_mlw = 5;
+static const int max_mw = 10;
+
+
+class BigShrinker : public <a href="qframe.html">QFrame</a> {
+ <a href="metaobjects.html#Q_OBJECT">Q_OBJECT</a>
+public:
+ BigShrinker(QWidget* parent) :
+ <a href="qframe.html">QFrame</a>(parent)
+ {
+ setFrameStyle(QFrame::Box|QFrame::Sunken);
+ int h=35;
+ int b=0;
+ for (int y=0; y&lt;2000-h; y+=h+10) {
+ if (y == 0) {
+ <a href="qbutton.html">QButton</a>* q=new <a href="qpushbutton.html">QPushButton</a>("Quit", this);
+ connect(q, SIGNAL(<a href="qbutton.html#clicked">clicked</a>()), qApp, SLOT(<a href="qapplication.html#quit">quit</a>()));
+ } else {
+ <a href="qstring.html">QString</a> str;
+ if ( b &gt; 0 ) {
+<a name="x656"></a> str.<a href="qstring.html#sprintf">sprintf</a>("Button %d", b++);
+ } else {
+ str = "I'm shrinking!";
+ ++b;
+ }
+ (new <a href="qpushbutton.html">QPushButton</a>(str, this))-&gt;move(y/2,y);
+ }
+ }
+ resize(1000,2000);
+
+ startTimer(250);
+ }
+
+ void timerEvent(QTimerEvent*)
+ {
+ int w=width();
+ int h=height();
+ if ( w &gt; 50 ) w -= 1;
+ if ( h &gt; 50 ) h -= 2;
+ resize(w,h);
+ }
+
+ void mouseReleaseEvent(QMouseEvent* e)
+ {
+ emit clicked(e-&gt;x(), e-&gt;y());
+ }
+
+signals:
+ void clicked(int,int);
+};
+
+class BigMatrix : public <a href="qscrollview.html">QScrollView</a> {
+ <a href="qmultilineedit.html">QMultiLineEdit</a> *dragging;
+public:
+ BigMatrix(QWidget* parent) :
+ <a href="qscrollview.html">QScrollView</a>(parent,"matrix", WStaticContents),
+ bg("bg.ppm")
+ {
+<a name="x640"></a> bg.<a href="qpixmap.html#load">load</a>("bg.ppm");
+ resizeContents(400000,300000);
+
+ dragging = 0;
+ }
+
+ void viewportMousePressEvent(QMouseEvent* e)
+ {
+ int x, y;
+ viewportToContents( e-&gt;x(), e-&gt;y(), x, y );
+ dragging = new <a href="qmultilineedit.html">QMultiLineEdit</a>(viewport(),"Another");
+<a name="x657"></a> dragging-&gt;<a href="qtextedit.html#setText">setText</a>("Thanks!");
+<a name="x650"></a> dragging-&gt;<a href="qwidget.html#resize">resize</a>(100,100);
+ addChild(dragging, x, y);
+ showChild(dragging);
+ }
+
+ void viewportMouseReleaseEvent(QMouseEvent*)
+ {
+ dragging = 0;
+ }
+
+ void viewportMouseMoveEvent(QMouseEvent* e)
+ {
+ if ( dragging ) {
+ int mx, my;
+ viewportToContents( e-&gt;x(), e-&gt;y(), mx, my );
+ int cx = childX(dragging);
+ int cy = childY(dragging);
+ int w = mx - cx + 1;
+ int h = my - cy + 1;
+ <a href="qstring.html">QString</a> msg;
+ msg.<a href="qstring.html#sprintf">sprintf</a>("at (%d,%d) %d by %d",cx,cy,w,h);
+ dragging-&gt;<a href="qtextedit.html#setText">setText</a>(msg);
+ dragging-&gt;<a href="qwidget.html#resize">resize</a>(w,h);
+ }
+ }
+
+protected:
+ void drawContents(QPainter* p, int cx, int cy, int cw, int ch)
+ {
+ // The Background
+<a name="x639"></a> if ( !bg.<a href="qpixmap.html#isNull">isNull</a>() ) {
+<a name="x638"></a> int rowheight=bg.<a href="qpixmap.html#height">height</a>();
+ int toprow=cy/rowheight;
+ int bottomrow=(cy+ch+rowheight-1)/rowheight;
+<a name="x641"></a> int colwidth=bg.<a href="qpixmap.html#width">width</a>();
+ int leftcol=cx/colwidth;
+ int rightcol=(cx+cw+colwidth-1)/colwidth;
+ for (int r=toprow; r&lt;=bottomrow; r++) {
+ int py=r*rowheight;
+ for (int c=leftcol; c&lt;=rightcol; c++) {
+ int px=c*colwidth;
+ p-&gt;drawPixmap(px, py, bg);
+ }
+ }
+ } else {
+ p-&gt;fillRect(cx, cy, cw, ch, QColor(240,222,208));
+ }
+
+ // The Numbers
+ {
+ <a href="qfontmetrics.html">QFontMetrics</a> fm=p-&gt;fontMetrics();
+<a name="x620"></a> int rowheight=fm.<a href="qfontmetrics.html#lineSpacing">lineSpacing</a>();
+ int toprow=cy/rowheight;
+ int bottomrow=(cy+ch+rowheight-1)/rowheight;
+<a name="x621"></a> int colwidth=fm.<a href="qfontmetrics.html#width">width</a>("00000,000000 ")+3;
+ int leftcol=cx/colwidth;
+ int rightcol=(cx+cw+colwidth-1)/colwidth;
+ <a href="qstring.html">QString</a> str;
+ for (int r=toprow; r&lt;=bottomrow; r++) {
+ int py=r*rowheight;
+ for (int c=leftcol; c&lt;=rightcol; c++) {
+ int px=c*colwidth;
+ str.<a href="qstring.html#sprintf">sprintf</a>("%d,%d",c,r);
+<a name="x619"></a> p-&gt;drawText(px+3, py+fm.<a href="qfontmetrics.html#ascent">ascent</a>(), str);
+ }
+ }
+
+ // The Big Hint
+ if (leftcol&lt;10 &amp;&amp; toprow&lt;5) {
+ p-&gt;setFont(QFont("Charter",30));
+ p-&gt;setPen(red);
+ <a href="qstring.html">QString</a> text;
+ text.<a href="qstring.html#sprintf">sprintf</a>("HINT: Look at %d,%d",215000/colwidth,115000/rowheight);
+ p-&gt;drawText(100,50,text);
+ }
+ }
+
+ // The Big X
+ {
+ if (cx+cw&gt;200000 &amp;&amp; cy+ch&gt;100000 &amp;&amp; cx&lt;230000 &amp;&amp; cy&lt;130000) {
+ // Note that some X server cannot even handle co-ordinates
+ // beyond about 4000, so you might not see this.
+ p-&gt;drawLine(200000,100000,229999,129999);
+ p-&gt;drawLine(229999,100000,200000,129999);
+
+ // X marks the spot!
+ p-&gt;setFont(QFont("Charter",100));
+ p-&gt;setPen(blue);
+ p-&gt;drawText(215000-500,115000-100,1000,200,AlignCenter,"YOU WIN!!!!!");
+ }
+ }
+ }
+
+private:
+ <a href="qpixmap.html">QPixmap</a> bg;
+};
+
+class ScrollViewExample : public <a href="qwidget.html">QWidget</a> {
+ Q_OBJECT
+
+public:
+ ScrollViewExample(int technique, QWidget* parent=0, const char* name=0) :
+ <a href="qwidget.html">QWidget</a>(parent,name)
+ {
+ <a href="qmenubar.html">QMenuBar</a>* menubar = new <a href="qmenubar.html">QMenuBar</a>(this);
+ <a href="qapplication.html#Q_CHECK_PTR">Q_CHECK_PTR</a>( menubar );
+
+ <a href="qpopupmenu.html">QPopupMenu</a>* file = new <a href="qpopupmenu.html">QPopupMenu</a>( menubar );
+ <a href="qapplication.html#Q_CHECK_PTR">Q_CHECK_PTR</a>( file );
+<a name="x634"></a> menubar-&gt;<a href="qmenudata.html#insertItem">insertItem</a>( "&amp;File", file );
+ file-&gt;<a href="qmenudata.html#insertItem">insertItem</a>( "Quit", qApp, SLOT(<a href="qapplication.html#quit">quit</a>()) );
+
+ vp_options = new <a href="qpopupmenu.html">QPopupMenu</a>( menubar );
+ <a href="qapplication.html#Q_CHECK_PTR">Q_CHECK_PTR</a>( vp_options );
+<a name="x644"></a> vp_options-&gt;<a href="qpopupmenu.html#setCheckable">setCheckable</a>( TRUE );
+ menubar-&gt;<a href="qmenudata.html#insertItem">insertItem</a>( "&amp;ScrollView", vp_options );
+<a name="x642"></a> connect( vp_options, SIGNAL(<a href="qpopupmenu.html#activated">activated</a>(int)),
+ this, SLOT(doVPMenuItem(int)) );
+
+ vauto_id = vp_options-&gt;<a href="qmenudata.html#insertItem">insertItem</a>( "Vertical Auto" );
+ vaoff_id = vp_options-&gt;<a href="qmenudata.html#insertItem">insertItem</a>( "Vertical AlwaysOff" );
+ vaon_id = vp_options-&gt;<a href="qmenudata.html#insertItem">insertItem</a>( "Vertical AlwaysOn" );
+<a name="x635"></a> vp_options-&gt;<a href="qmenudata.html#insertSeparator">insertSeparator</a>();
+ hauto_id = vp_options-&gt;<a href="qmenudata.html#insertItem">insertItem</a>( "Horizontal Auto" );
+ haoff_id = vp_options-&gt;<a href="qmenudata.html#insertItem">insertItem</a>( "Horizontal AlwaysOff" );
+ haon_id = vp_options-&gt;<a href="qmenudata.html#insertItem">insertItem</a>( "Horizontal AlwaysOn" );
+ vp_options-&gt;<a href="qmenudata.html#insertSeparator">insertSeparator</a>();
+ corn_id = vp_options-&gt;<a href="qmenudata.html#insertItem">insertItem</a>( "cornerWidget" );
+
+ if (technique == 1) {
+ vp = new <a href="qscrollview.html">QScrollView</a>(this);
+<a name="x655"></a> BigShrinker *bs = new BigShrinker(0);//(vp-&gt;<a href="qscrollview.html#viewport">viewport</a>());
+<a name="x645"></a> vp-&gt;<a href="qscrollview.html#addChild">addChild</a>(bs);
+<a name="x659"></a> bs-&gt;<a href="qwidget.html#setAcceptDrops">setAcceptDrops</a>(TRUE);
+ QObject::<a href="qobject.html#connect">connect</a>(bs, SIGNAL(clicked(int,int)),
+<a name="x646"></a> vp, SLOT(<a href="qscrollview.html#center">center</a>(int,int)));
+ } else {
+ vp = new BigMatrix(this);
+ if ( technique == 3 )
+<a name="x648"></a> vp-&gt;<a href="qscrollview.html#enableClipper">enableClipper</a>(TRUE);
+ srand(1);
+ for (int i=0; i&lt;30; i++) {
+ <a href="qmultilineedit.html">QMultiLineEdit</a> *l = new <a href="qmultilineedit.html">QMultiLineEdit</a>(vp-&gt;<a href="qscrollview.html#viewport">viewport</a>(),"First");
+ l-&gt;<a href="qtextedit.html#setText">setText</a>("Drag out more of these.");
+ l-&gt;<a href="qwidget.html#resize">resize</a>(100,100);
+ vp-&gt;<a href="qscrollview.html#addChild">addChild</a>(l, rand()%800, rand()%10000);
+ }
+ vp-&gt;<a href="qscrollview.html#viewport">viewport</a>()-&gt;setBackgroundMode(NoBackground);
+ }
+
+ f_options = new <a href="qpopupmenu.html">QPopupMenu</a>( menubar );
+ <a href="qapplication.html#Q_CHECK_PTR">Q_CHECK_PTR</a>( f_options );
+ f_options-&gt;<a href="qpopupmenu.html#setCheckable">setCheckable</a>( TRUE );
+ menubar-&gt;<a href="qmenudata.html#insertItem">insertItem</a>( "F&amp;rame", f_options );
+ connect( f_options, SIGNAL(<a href="qpopupmenu.html#activated">activated</a>(int)),
+ this, SLOT(doFMenuItem(int)) );
+
+ f_options-&gt;<a href="qmenudata.html#insertItem">insertItem</a>( "No Frame", style_id );
+ f_options-&gt;<a href="qmenudata.html#insertItem">insertItem</a>( "Box", style_id|QFrame::Box );
+ f_options-&gt;<a href="qmenudata.html#insertItem">insertItem</a>( "Panel", style_id|QFrame::Panel );
+ f_options-&gt;<a href="qmenudata.html#insertItem">insertItem</a>( "WinPanel", style_id|QFrame::WinPanel );
+ f_options-&gt;<a href="qmenudata.html#insertSeparator">insertSeparator</a>();
+ f_options-&gt;<a href="qmenudata.html#insertItem">insertItem</a>( "Plain", style_id|QFrame::Plain );
+ f_options-&gt;<a href="qmenudata.html#insertItem">insertItem</a>( "Raised", style_id|QFrame::Raised );
+<a name="x633"></a> f_laststyle = f_options-&gt;<a href="qmenudata.html#indexOf">indexOf</a>(
+ f_options-&gt;<a href="qmenudata.html#insertItem">insertItem</a>( "Sunken", style_id|QFrame::Sunken ));
+ f_options-&gt;<a href="qmenudata.html#insertSeparator">insertSeparator</a>();
+ lw_options = new <a href="qpopupmenu.html">QPopupMenu</a>( menubar );
+ <a href="qapplication.html#Q_CHECK_PTR">Q_CHECK_PTR</a>( lw_options );
+ lw_options-&gt;<a href="qpopupmenu.html#setCheckable">setCheckable</a>( TRUE );
+ for (int lw = 1; lw &lt;= max_lw; lw++) {
+ <a href="qstring.html">QString</a> str;
+ str.<a href="qstring.html#sprintf">sprintf</a>("%d Pixels", lw);
+ lw_options-&gt;<a href="qmenudata.html#insertItem">insertItem</a>( str, lw_id | lw );
+ }
+ f_options-&gt;<a href="qmenudata.html#insertItem">insertItem</a>( "Line Width", lw_options );
+ connect( lw_options, SIGNAL(<a href="qpopupmenu.html#activated">activated</a>(int)),
+ this, SLOT(doFMenuItem(int)) );
+ mlw_options = new <a href="qpopupmenu.html">QPopupMenu</a>( menubar );
+ <a href="qapplication.html#Q_CHECK_PTR">Q_CHECK_PTR</a>( mlw_options );
+ mlw_options-&gt;<a href="qpopupmenu.html#setCheckable">setCheckable</a>( TRUE );
+ for (int mlw = 0; mlw &lt;= max_mlw; mlw++) {
+ <a href="qstring.html">QString</a> str;
+ str.<a href="qstring.html#sprintf">sprintf</a>("%d Pixels", mlw);
+ mlw_options-&gt;<a href="qmenudata.html#insertItem">insertItem</a>( str, mlw_id | mlw );
+ }
+ f_options-&gt;<a href="qmenudata.html#insertItem">insertItem</a>( "Midline Width", mlw_options );
+ connect( mlw_options, SIGNAL(<a href="qpopupmenu.html#activated">activated</a>(int)),
+ this, SLOT(doFMenuItem(int)) );
+ mw_options = new <a href="qpopupmenu.html">QPopupMenu</a>( menubar );
+ <a href="qapplication.html#Q_CHECK_PTR">Q_CHECK_PTR</a>( mw_options );
+ mw_options-&gt;<a href="qpopupmenu.html#setCheckable">setCheckable</a>( TRUE );
+ for (int mw = 0; mw &lt;= max_mw; mw++) {
+ <a href="qstring.html">QString</a> str;
+ str.<a href="qstring.html#sprintf">sprintf</a>("%d Pixels", mw);
+ mw_options-&gt;<a href="qmenudata.html#insertItem">insertItem</a>( str, mw_id | mw );
+ }
+ f_options-&gt;<a href="qmenudata.html#insertItem">insertItem</a>( "Margin Width", mw_options );
+ connect( mw_options, SIGNAL(<a href="qpopupmenu.html#activated">activated</a>(int)),
+ this, SLOT(doFMenuItem(int)) );
+
+ setVPMenuItems();
+ setFMenuItems();
+
+ <a href="qvboxlayout.html">QVBoxLayout</a>* vbox = new <a href="qvboxlayout.html">QVBoxLayout</a>(this);
+<a name="x631"></a> vbox-&gt;<a href="qlayout.html#setMenuBar">setMenuBar</a>(menubar);
+<a name="x632"></a> menubar-&gt;<a href="qmenubar.html#setSeparator">setSeparator</a>(QMenuBar::InWindowsStyle);
+ vbox-&gt;<a href="qboxlayout.html#addWidget">addWidget</a>(vp);
+<a name="x630"></a> vbox-&gt;<a href="qlayout.html#activate">activate</a>();
+
+ corner = new <a href="qsizegrip.html">QSizeGrip</a>(this);
+<a name="x658"></a> corner-&gt;<a href="qwidget.html#hide">hide</a>();
+ }
+
+private slots:
+ void doVPMenuItem(int id)
+ {
+ if (id == vauto_id ) {
+<a name="x653"></a> vp-&gt;<a href="qscrollview.html#setVScrollBarMode">setVScrollBarMode</a>(QScrollView::Auto);
+ } else if (id == vaoff_id) {
+ vp-&gt;<a href="qscrollview.html#setVScrollBarMode">setVScrollBarMode</a>(QScrollView::AlwaysOff);
+ } else if (id == vaon_id) {
+ vp-&gt;<a href="qscrollview.html#setVScrollBarMode">setVScrollBarMode</a>(QScrollView::AlwaysOn);
+ } else if (id == hauto_id) {
+<a name="x652"></a> vp-&gt;<a href="qscrollview.html#setHScrollBarMode">setHScrollBarMode</a>(QScrollView::Auto);
+ } else if (id == haoff_id) {
+ vp-&gt;<a href="qscrollview.html#setHScrollBarMode">setHScrollBarMode</a>(QScrollView::AlwaysOff);
+ } else if (id == haon_id) {
+ vp-&gt;<a href="qscrollview.html#setHScrollBarMode">setHScrollBarMode</a>(QScrollView::AlwaysOn);
+ } else if (id == corn_id) {
+<a name="x647"></a> bool corn = !vp-&gt;<a href="qscrollview.html#cornerWidget">cornerWidget</a>();
+<a name="x651"></a> vp-&gt;<a href="qscrollview.html#setCornerWidget">setCornerWidget</a>(corn ? corner : 0);
+ } else {
+ return; // Not for us to process.
+ }
+ setVPMenuItems();
+ }
+
+ void setVPMenuItems()
+ {
+<a name="x654"></a> QScrollView::ScrollBarMode vm = vp-&gt;<a href="qscrollview.html#vScrollBarMode">vScrollBarMode</a>();
+<a name="x636"></a> vp_options-&gt;<a href="qmenudata.html#setItemChecked">setItemChecked</a>( vauto_id, vm == QScrollView::Auto );
+ vp_options-&gt;<a href="qmenudata.html#setItemChecked">setItemChecked</a>( vaoff_id, vm == QScrollView::AlwaysOff );
+ vp_options-&gt;<a href="qmenudata.html#setItemChecked">setItemChecked</a>( vaon_id, vm == QScrollView::AlwaysOn );
+
+<a name="x649"></a> QScrollView::ScrollBarMode hm = vp-&gt;<a href="qscrollview.html#hScrollBarMode">hScrollBarMode</a>();
+ vp_options-&gt;<a href="qmenudata.html#setItemChecked">setItemChecked</a>( hauto_id, hm == QScrollView::Auto );
+ vp_options-&gt;<a href="qmenudata.html#setItemChecked">setItemChecked</a>( haoff_id, hm == QScrollView::AlwaysOff );
+ vp_options-&gt;<a href="qmenudata.html#setItemChecked">setItemChecked</a>( haon_id, hm == QScrollView::AlwaysOn );
+
+ vp_options-&gt;<a href="qmenudata.html#setItemChecked">setItemChecked</a>( corn_id, !!vp-&gt;<a href="qscrollview.html#cornerWidget">cornerWidget</a>() );
+ }
+
+ void doFMenuItem(int id)
+ {
+ if (id &amp; style_id) {
+ int sty;
+
+ if (id == style_id) {
+ sty = 0;
+ } else if (id &amp; QFrame::MShape) {
+<a name="x622"></a> sty = vp-&gt;<a href="qframe.html#frameStyle">frameStyle</a>()&amp;QFrame::MShadow;
+ sty = (sty ? sty : <a href="qframe.html">QFrame</a>::Plain) | (id&amp;QFrame::MShape);
+ } else {
+ sty = vp-&gt;<a href="qframe.html#frameStyle">frameStyle</a>()&amp;QFrame::MShape;
+ sty = (sty ? sty : <a href="qframe.html">QFrame</a>::Box) | (id&amp;QFrame::MShadow);
+ }
+<a name="x626"></a> vp-&gt;<a href="qframe.html#setFrameStyle">setFrameStyle</a>(sty);
+ } else if (id &amp; lw_id) {
+<a name="x627"></a> vp-&gt;<a href="qframe.html#setLineWidth">setLineWidth</a>(id&amp;~lw_id);
+ } else if (id &amp; mlw_id) {
+<a name="x629"></a> vp-&gt;<a href="qframe.html#setMidLineWidth">setMidLineWidth</a>(id&amp;~mlw_id);
+ } else {
+<a name="x628"></a> vp-&gt;<a href="qframe.html#setMargin">setMargin</a>(id&amp;~mw_id);
+ }
+
+<a name="x662"></a> vp-&gt;<a href="qwidget.html#update">update</a>();
+ setFMenuItems();
+ }
+
+ void setFMenuItems()
+ {
+ int sty = vp-&gt;<a href="qframe.html#frameStyle">frameStyle</a>();
+
+ f_options-&gt;<a href="qmenudata.html#setItemChecked">setItemChecked</a>( style_id, !sty );
+
+ for (int i=1; i &lt;= f_laststyle; i++) {
+<a name="x643"></a> int id = f_options-&gt;<a href="qpopupmenu.html#idAt">idAt</a>(i);
+ if (id &amp; QFrame::MShape)
+ f_options-&gt;<a href="qmenudata.html#setItemChecked">setItemChecked</a>( id,
+ ((id&amp;QFrame::MShape) == (sty&amp;QFrame::MShape)) );
+ else
+ f_options-&gt;<a href="qmenudata.html#setItemChecked">setItemChecked</a>( id,
+ ((id&amp;QFrame::MShadow) == (sty&amp;QFrame::MShadow)) );
+ }
+
+ for (int lw=1; lw&lt;=max_lw; lw++)
+<a name="x623"></a> lw_options-&gt;<a href="qmenudata.html#setItemChecked">setItemChecked</a>( lw_id|lw, vp-&gt;<a href="qframe.html#lineWidth">lineWidth</a>() == lw );
+
+ for (int mlw=0; mlw&lt;=max_mlw; mlw++)
+<a name="x625"></a> mlw_options-&gt;<a href="qmenudata.html#setItemChecked">setItemChecked</a>( mlw_id|mlw, vp-&gt;<a href="qframe.html#midLineWidth">midLineWidth</a>() == mlw );
+
+ for (int mw=0; mw&lt;=max_mw; mw++)
+<a name="x624"></a> mw_options-&gt;<a href="qmenudata.html#setItemChecked">setItemChecked</a>( mw_id|mw, vp-&gt;<a href="qframe.html#margin">margin</a>() == mw );
+ }
+
+private:
+ <a href="qscrollview.html">QScrollView</a>* vp;
+ <a href="qpopupmenu.html">QPopupMenu</a>* vp_options;
+ <a href="qpopupmenu.html">QPopupMenu</a>* f_options;
+ <a href="qpopupmenu.html">QPopupMenu</a>* lw_options;
+ <a href="qpopupmenu.html">QPopupMenu</a>* mlw_options;
+ <a href="qpopupmenu.html">QPopupMenu</a>* mw_options;
+ <a href="qsizegrip.html">QSizeGrip</a>* corner;
+
+ int vauto_id, vaoff_id, vaon_id,
+ hauto_id, haoff_id, haon_id,
+ corn_id;
+
+ int f_laststyle;
+};
+
+int main( int argc, char **argv )
+{
+ <a href="qapplication.html">QApplication</a> a( argc, argv );
+
+ ScrollViewExample ve1(1,0,"ve1");
+ ScrollViewExample ve2(2,0,"ve2");
+ ScrollViewExample ve3(3,0,"ve3");
+ ve1.<a href="qwidget.html#setCaption">setCaption</a>("Qt Example - Scrollviews");
+ ve1.<a href="qwidget.html#show">show</a>();
+ ve2.<a href="qwidget.html#setCaption">setCaption</a>("Qt Example - Scrollviews");
+ ve2.<a href="qwidget.html#show">show</a>();
+ ve3.<a href="qwidget.html#setCaption">setCaption</a>("Qt Example - Scrollviews");
+ ve3.<a href="qwidget.html#show">show</a>();
+
+ QObject::<a href="qobject.html#connect">connect</a>(qApp, SIGNAL(<a href="qapplication.html#lastWindowClosed">lastWindowClosed</a>()), qApp, SLOT(<a href="qapplication.html#quit">quit</a>()));
+
+ return a.<a href="qapplication.html#exec">exec</a>();
+}
+
+#include "scrollview.moc"
+</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 &copy; 2007
+<a href="troll.html">Trolltech</a><td align=center><a href="trademarks.html">Trademarks</a>
+<td align=right><div align=right>Qt 3.3.8</div>
+</table></div></address></body>
+</html>