You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
248 lines
11 KiB
248 lines
11 KiB
14 years ago
|
<!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/popup/popup.doc:4 -->
|
||
|
|
<html>
|
||
|
|
<head>
|
||
|
|
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
|
||
|
|
<title>Popup Widgets</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 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>Popup Widgets</h1>
|
||
|
|
|
||
|
|
|
||
|
|
<p>
|
||
|
|
This example shows how to implement widgets that should
|
||
|
|
pop up.
|
||
|
|
<p> <hr>
|
||
|
|
<p> Header file:
|
||
|
|
<p> <pre>/****************************************************************************
|
||
|
|
** $Id: qt/popup.h 3.3.8 edited Jan 11 14:46 $
|
||
|
|
**
|
||
|
|
** Definition of something or other
|
||
|
|
**
|
||
|
|
** Created : 979899
|
||
|
|
**
|
||
|
|
** Copyright (C) 1997-2007 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.
|
||
|
|
**
|
||
|
|
*****************************************************************************/
|
||
|
|
|
||
|
|
#ifndef POPUP_H
|
||
|
|
#define POPUP_H
|
||
|
|
#include <<a href="qlabel-h.html">qlabel.h</a>>
|
||
|
|
#include <<a href="qpushbutton-h.html">qpushbutton.h</a>>
|
||
|
|
#include <<a href="qlineedit-h.html">qlineedit.h</a>>
|
||
|
|
|
||
|
|
class FancyPopup : public <a href="qlabel.html">QLabel</a>
|
||
|
|
{
|
||
|
|
<a href="metaobjects.html#Q_OBJECT">Q_OBJECT</a>
|
||
|
|
public:
|
||
|
|
FancyPopup( <a href="qwidget.html">QWidget</a>* parent = 0, const char* name=0);
|
||
|
|
|
||
|
|
void popup( <a href="qwidget.html">QWidget</a>* parent = 0);
|
||
|
|
protected:
|
||
|
|
virtual void mouseMoveEvent( <a href="qmouseevent.html">QMouseEvent</a> * );
|
||
|
|
virtual void mouseReleaseEvent( <a href="qmouseevent.html">QMouseEvent</a> * );
|
||
|
|
virtual void closeEvent( <a href="qcloseevent.html">QCloseEvent</a> * );
|
||
|
|
|
||
|
|
private:
|
||
|
|
<a href="qwidget.html">QWidget</a>* popupParent;
|
||
|
|
int moves;
|
||
|
|
};
|
||
|
|
|
||
|
|
|
||
|
|
class Frame : public <a href="qframe.html">QFrame</a>
|
||
|
|
{
|
||
|
|
Q_OBJECT
|
||
|
|
public:
|
||
|
|
Frame( <a href="qwidget.html">QWidget</a> *parent=0, const char* name=0);
|
||
|
|
|
||
|
|
protected:
|
||
|
|
|
||
|
|
private slots:
|
||
|
|
void button1Clicked();
|
||
|
|
void button2Pressed();
|
||
|
|
|
||
|
|
private:
|
||
|
|
<a href="qpushbutton.html">QPushButton</a> *button1;
|
||
|
|
<a href="qpushbutton.html">QPushButton</a> *button2;
|
||
|
|
|
||
|
|
<a href="qframe.html">QFrame</a>* popup1;
|
||
|
|
FancyPopup* popup2;
|
||
|
|
};
|
||
|
|
|
||
|
|
#endif
|
||
|
|
</pre>
|
||
|
|
|
||
|
|
<p> <hr>
|
||
|
|
<p> Implementation:
|
||
|
|
<p> <pre>/****************************************************************************
|
||
|
|
** $Id: qt/popup.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 "popup.h"
|
||
|
|
#include <<a href="qapplication-h.html">qapplication.h</a>>
|
||
|
|
#include <<a href="qlayout-h.html">qlayout.h</a>>
|
||
|
|
|
||
|
|
<a name="f468"></a>FancyPopup::FancyPopup( <a href="qwidget.html">QWidget</a>* parent, const char* name ):
|
||
|
|
<a href="qlabel.html">QLabel</a>( parent, name, WType_Popup ){
|
||
|
|
<a href="qframe.html#setFrameStyle">setFrameStyle</a>( WinPanel|Raised );
|
||
|
|
<a href="qlabel.html#setAlignment">setAlignment</a>( AlignCenter );
|
||
|
|
<a href="qwidget.html#resize">resize</a>(150,100);
|
||
|
|
moves = 0;
|
||
|
|
<a href="qwidget.html#setMouseTracking">setMouseTracking</a>( TRUE );
|
||
|
|
}
|
||
|
|
|
||
|
|
<a name="x1620"></a>void FancyPopup::<a href="qwidget.html#mouseMoveEvent">mouseMoveEvent</a>( <a href="qmouseevent.html">QMouseEvent</a> * e){
|
||
|
|
moves++;
|
||
|
|
<a href="qstring.html">QString</a> s;
|
||
|
|
<a name="x1611"></a> s.<a href="qstring.html#sprintf">sprintf</a>("%d/%d", e-><a href="qmouseevent.html#pos">pos</a>().x(), e-><a href="qmouseevent.html#pos">pos</a>().y());
|
||
|
|
<a name="x1612"></a> if (e-><a href="qmouseevent.html#state">state</a>() & QMouseEvent::LeftButton)
|
||
|
|
s += " (down)";
|
||
|
|
<a href="qlabel.html#setText">setText</a>(s);
|
||
|
|
}
|
||
|
|
|
||
|
|
<a name="x1621"></a>void FancyPopup::<a href="qwidget.html#mouseReleaseEvent">mouseReleaseEvent</a>( <a href="qmouseevent.html">QMouseEvent</a> * e){
|
||
|
|
if (<a href="qwidget.html#rect">rect</a>().contains( e-><a href="qmouseevent.html#pos">pos</a>() ) || moves > 5)
|
||
|
|
<a href="qwidget.html#close">close</a>();
|
||
|
|
}
|
||
|
|
|
||
|
|
<a name="x1617"></a>void FancyPopup::<a href="qwidget.html#closeEvent">closeEvent</a>( <a href="qcloseevent.html">QCloseEvent</a> *e ){
|
||
|
|
<a name="x1607"></a> e-><a href="qcloseevent.html#accept">accept</a>();
|
||
|
|
moves = 0;
|
||
|
|
if (!popupParent)
|
||
|
|
return;
|
||
|
|
|
||
|
|
// remember that we (as a popup) might recieve the mouse release
|
||
|
|
// event instead of the popupParent. This is due to the fact that
|
||
|
|
// the popupParent popped us up in its mousePressEvent handler. To
|
||
|
|
// avoid the button remaining in pressed state we simply send a
|
||
|
|
// faked mouse button release event to it.
|
||
|
|
<a href="qmouseevent.html">QMouseEvent</a> me( QEvent::MouseButtonRelease, QPoint(0,0), QPoint(0,0), QMouseEvent::LeftButton, QMouseEvent::NoButton);
|
||
|
|
<a name="x1602"></a> QApplication::<a href="qapplication.html#sendEvent">sendEvent</a>( popupParent, &me );
|
||
|
|
}
|
||
|
|
|
||
|
|
void <a name="f469"></a>FancyPopup::popup( <a href="qwidget.html">QWidget</a>* parent) {
|
||
|
|
popupParent = parent;
|
||
|
|
setText("Move the mouse!");
|
||
|
|
if (popupParent)
|
||
|
|
<a href="qwidget.html#move">move</a>( popupParent->mapToGlobal( popupParent->rect().bottomLeft() ) );
|
||
|
|
<a href="qwidget.html#show">show</a>();
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
<a name="f470"></a>Frame::Frame(QWidget* parent, const char* name): <a href="qframe.html">QFrame</a>(parent, name){
|
||
|
|
button1 = new <a href="qpushbutton.html">QPushButton</a>("Simple Popup", this);
|
||
|
|
<a href="qobject.html#connect">connect</a> ( button1, SIGNAL( <a href="qbutton.html#clicked">clicked</a>() ), SLOT( button1Clicked() ) );
|
||
|
|
button2 = new <a href="qpushbutton.html">QPushButton</a>("Fancy Popup", this);
|
||
|
|
<a name="x1606"></a> <a href="qobject.html#connect">connect</a> ( button2, SIGNAL( <a href="qbutton.html#pressed">pressed</a>() ), SLOT( button2Pressed() ) );
|
||
|
|
|
||
|
|
<a href="qboxlayout.html">QBoxLayout</a> * l = new <a href="qhboxlayout.html">QHBoxLayout</a>( this );
|
||
|
|
<a name="x1627"></a><a name="x1614"></a> button1-><a href="qwidget.html#setMaximumSize">setMaximumSize</a>(button1-><a href="qwidget.html#sizeHint">sizeHint</a>());
|
||
|
|
button2-><a href="qwidget.html#setMaximumSize">setMaximumSize</a>(button2-><a href="qwidget.html#sizeHint">sizeHint</a>());
|
||
|
|
l-><a href="qboxlayout.html#addWidget">addWidget</a>( button1 );
|
||
|
|
l-><a href="qboxlayout.html#addWidget">addWidget</a>( button2 );
|
||
|
|
<a name="x1609"></a> l-><a href="qlayout.html#activate">activate</a>();
|
||
|
|
|
||
|
|
<a name="x1613"></a>// button1-><a href="qwidget.html#setGeometry">setGeometry</a>(20,20,100,30);
|
||
|
|
// button2-><a href="qwidget.html#setGeometry">setGeometry</a>(140,20,100,30);
|
||
|
|
<a href="qwidget.html#resize">resize</a>(270, 70);
|
||
|
|
|
||
|
|
//create a very simple popup: it is just composed with other
|
||
|
|
//widget and will be shown after clicking on button1
|
||
|
|
|
||
|
|
popup1 = new <a href="qframe.html">QFrame</a>( this ,0, WType_Popup);
|
||
|
|
popup1-><a href="qframe.html#setFrameStyle">setFrameStyle</a>( WinPanel|Raised );
|
||
|
|
popup1-><a href="qwidget.html#resize">resize</a>(150,100);
|
||
|
|
<a href="qlineedit.html">QLineEdit</a> *tmpE = new <a href="qlineedit.html">QLineEdit</a>( popup1 );
|
||
|
|
<a name="x1619"></a><a name="x1610"></a> <a href="qobject.html#connect">connect</a>( tmpE, SIGNAL( <a href="qlineedit.html#returnPressed">returnPressed</a>() ), popup1, SLOT( <a href="qwidget.html#hide">hide</a>() ) );
|
||
|
|
<a name="x1626"></a> tmpE-><a href="qwidget.html#setGeometry">setGeometry</a>(10,10, 130, 30);
|
||
|
|
<a name="x1625"></a> tmpE-><a href="qwidget.html#setFocus">setFocus</a>();
|
||
|
|
<a href="qpushbutton.html">QPushButton</a> *tmpB = new <a href="qpushbutton.html">QPushButton</a>("Click me!", popup1);
|
||
|
|
<a name="x1616"></a> <a href="qobject.html#connect">connect</a>( tmpB, SIGNAL( <a href="qbutton.html#clicked">clicked</a>() ), popup1, SLOT( <a href="qwidget.html#close">close</a>() ) );
|
||
|
|
tmpB-><a href="qwidget.html#setGeometry">setGeometry</a>(10, 50, 130, 30);
|
||
|
|
|
||
|
|
// the fancier version uses its own class. It will be shown when
|
||
|
|
// pressing button2, so they behavior is more like a modern menu
|
||
|
|
// or toolbar.
|
||
|
|
|
||
|
|
popup2 = new FancyPopup( this );
|
||
|
|
|
||
|
|
// you might also add new widgets to the popup, just like you do
|
||
|
|
// it with any other widget. The next four lines (if not
|
||
|
|
// commented out) will for instance add a line edit widget.
|
||
|
|
|
||
|
|
// tmpE = new <a href="qlineedit.html">QLineEdit</a>( popup2 );
|
||
|
|
// tmpE-><a href="qwidget.html#setFocus">setFocus</a>();
|
||
|
|
// connect( tmpE, SIGNAL( <a href="qlineedit.html#returnPressed">returnPressed</a>() ), popup2, SLOT( <a href="qwidget.html#close">close</a>() ) );
|
||
|
|
// tmpE-><a href="qwidget.html#setGeometry">setGeometry</a>(10, 10, 130, 30);
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
void <a name="f471"></a>Frame::button1Clicked(){
|
||
|
|
<a name="x1622"></a><a name="x1618"></a> popup1-><a href="qwidget.html#move">move</a>( <a href="qwidget.html#mapToGlobal">mapToGlobal</a>( button1-><a href="qwidget.html#geometry">geometry</a>().bottomLeft() ) );
|
||
|
|
<a name="x1628"></a> popup1-><a href="qwidget.html#show">show</a>();
|
||
|
|
}
|
||
|
|
|
||
|
|
void <a name="f472"></a>Frame::button2Pressed(){
|
||
|
|
popup2->popup(button2);
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
int main( int argc, char **argv )
|
||
|
|
{
|
||
|
|
<a href="qapplication.html">QApplication</a> a(argc,argv);
|
||
|
|
|
||
|
|
Frame frame;
|
||
|
|
frame.<a href="qwidget.html#setCaption">setCaption</a>("Qt Example - Custom Popups");
|
||
|
|
a.<a href="qapplication.html#setMainWidget">setMainWidget</a>(&frame);
|
||
|
|
frame.<a href="qwidget.html#show">show</a>();
|
||
|
|
return a.<a href="qapplication.html#exec">exec</a>();
|
||
|
|
}
|
||
|
|
</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 © 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>
|