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| author | Timothy Pearson <kb9vqf@pearsoncomputing.net> | 2011-07-10 15:24:15 -0500 |
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| committer | Timothy Pearson <kb9vqf@pearsoncomputing.net> | 2011-07-10 15:24:15 -0500 |
| commit | bd0f3345a938b35ce6a12f6150373b0955b8dd12 (patch) | |
| tree | 7a520322212d48ebcb9fbe1087e7fca28b76185c /doc/html/popup-example.html | |
| download | qt3-bd0f3345a938b35ce6a12f6150373b0955b8dd12.tar.gz qt3-bd0f3345a938b35ce6a12f6150373b0955b8dd12.zip | |
Add Qt3 development HEAD version
Diffstat (limited to 'doc/html/popup-example.html')
| -rw-r--r-- | doc/html/popup-example.html | 247 |
1 files changed, 247 insertions, 0 deletions
diff --git a/doc/html/popup-example.html b/doc/html/popup-example.html new file mode 100644 index 0000000..c5444ef --- /dev/null +++ b/doc/html/popup-example.html @@ -0,0 +1,247 @@ +<!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> |