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<title>A Tiny Example Featuring QActionGroup</title>
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<td align="right" valign="center"><img src="logo32.png" align="right" width="64" height="32" border="0"></td></tr></table><h1 align=center>A Tiny Example Featuring QActionGroup</h1>
<p>
<p> This example program shows how to use an
exclusive action group.
<p> Detailed explanations of the code can be found in the
<a href="actiongroup.html">walkthrough</a>.
<p> <hr>
<p> Main:
<p> <pre>/*
$Id$
*/
#include <<a href="qapplication-h.html">qapplication.h</a>>
#include "editor.h"
int main( int argc, char ** argv)
{
<a href="qapplication.html">QApplication</a> app( argc, argv );
Editor editor;
editor.<a href="qwidget.html#setCaption">setCaption</a>( "Qt Example - Actiongroup" );
app.<a href="qapplication.html#setMainWidget">setMainWidget</a>( &editor );
editor.<a href="qwidget.html#show">show</a>();
return app.<a href="qapplication.html#exec">exec</a>();
}
</pre>
<p> <hr>
<p> Header file:
<p> <pre>/*
$Id$
*/
#ifndef EDITOR_H
#define EDITOR_H
#include <<a href="qmainwindow-h.html">qmainwindow.h</a>>
class QTextEdit;
class QAction;
class Editor : public <a href="qmainwindow.html">QMainWindow</a>
{
<a href="metaobjects.html#Q_OBJECT">Q_OBJECT</a>
public:
Editor();
private slots:
void setFontColor( <a href="qaction.html">QAction</a> * );
private:
<a href="qtextedit.html">QTextEdit</a> * editor;
<a href="qaction.html">QAction</a> * setRedFont;
};
#endif
</pre>
<p> <hr>
<p> Implementation:
<p> <pre>/*
$Id$
*/
/* XPM */
static const char * black_xpm[] = {
"32 32 2 1",
" c None",
". c #020202",
"................................",
"................................",
"................................",
"................................",
"................................",
"................................",
"................................",
"................................",
"................................",
"................................",
"................................",
"................................",
"................................",
"................................",
"................................",
"................................",
"................................",
"................................",
"................................",
"................................",
"................................",
"................................",
"................................",
"................................",
"................................",
"................................",
"................................",
"................................",
"................................",
"................................",
"................................",
"................................"};
/* XPM */
static const char * red_xpm[] = {
"32 32 6 1",
" c None",
". c #EE0928",
"+ c #EF0928",
"@ c #EE0A29",
"# c #EE0B2A",
"$ c #ED0C2B",
"........................+.......",
".+.++++++++++++++++++++++++++++.",
".++++++++++++++++++++++++++++++.",
".++++++++++++++++++++++++++++++.",
".++++++++++++++++++++++++++++++.",
".++++++++++++++++++++++++++++++.",
".++++++++++++++++++++++++++++++.",
".++++++++.+++++++++++++++++++++.",
".++++++++++++++++++++++++++++++.",
"+++++++++++++++++++++++++++++++.",
".++++++++++++++++++++++++++++++.",
".++++++++++++++++++++++++++++++.",
".++++++++++++++++++++++++++++++.",
".++++++.+++++++++++++++++++++++.",
".++++++++++++++++++++++++++++++.",
".++++++++++++++++++++++++++++++.",
".++++++++++++++++++++++++++++++.",
".++++++++++++++++++++++++++++++.",
".++++++++++++++++.+++++++++++++.",
".++++++++++++++++++++++++++++++.",
".++++++++++++++++++++++++++++++.",
".++++++++++++++++++++++++++++++.",
".++++++++++++++++++++++++++++++@",
".+++++++++++++++++++++++++++++.#",
".+++++++++++++++++++++++++.+++.$",
".+++++++++++++++++++++++++++++#$",
".+++++++++++++++++++++++++++++.#",
".+++++++++++++++++++++++++++++.#",
".++++++++.+++++++++++++++++++++@",
".++++++.+++++++++++++++++++++++.",
".++++++++++++++++++++++++++++++.",
"..........+.............+......."};
#include "editor.h"
#include <<a href="qtextedit-h.html">qtextedit.h</a>>
#include <<a href="qmenubar-h.html">qmenubar.h</a>>
#include <<a href="qpopupmenu-h.html">qpopupmenu.h</a>>
#include <<a href="qtoolbar-h.html">qtoolbar.h</a>>
#include <<a href="qaction-h.html">qaction.h</a>>
<a name="f535"></a>Editor::Editor()
: <a href="qmainwindow.html">QMainWindow</a>( 0, "main window")
{
<a href="qactiongroup.html">QActionGroup</a> * colors = new <a href="qactiongroup.html">QActionGroup</a>( this, "colors", TRUE );
<a href="qaction.html">QAction</a> * setBlackFont = new <a href="qaction.html">QAction</a>( "black", QPixmap( (const char**)black_xpm ),
"Font color: black", CTRL+Key_B,
colors, "blackfontcolor", TRUE );
setRedFont = new <a href="qaction.html">QAction</a>( "red", QPixmap( (const char**)red_xpm ), "Font color: red",
CTRL+Key_R, colors, "redfontcolor", TRUE );
<a name="x2007"></a> QObject::<a href="qobject.html#connect">connect</a>( colors, SIGNAL( <a href="qactiongroup.html#selected">selected</a>( <a href="qaction.html">QAction</a> * ) ),
this, SLOT( setFontColor( <a href="qaction.html">QAction</a> * ) ) );
<a href="qtoolbar.html">QToolBar</a> * toolbar = new <a href="qtoolbar.html">QToolBar</a>( this, "toolbar" );
<a name="x2006"></a> colors-><a href="qactiongroup.html#addTo">addTo</a>( toolbar );
<a href="qpopupmenu.html">QPopupMenu</a> * font = new <a href="qpopupmenu.html">QPopupMenu</a>( this );
<a href="qmainwindow.html#menuBar">menuBar</a>()->insertItem( "&Font", font );
<a name="x2008"></a> colors-><a href="qactiongroup.html#setUsesDropDown">setUsesDropDown</a>( TRUE );
<a name="x2005"></a> colors-><a href="qaction.html#setMenuText">setMenuText</a>( "Font Color" );
colors-><a href="qactiongroup.html#addTo">addTo</a>( font );
editor = new <a href="qtextedit.html">QTextEdit</a>( this, "editor" );
<a href="qmainwindow.html#setCentralWidget">setCentralWidget</a>( editor );
}
void <a name="f536"></a>Editor::setFontColor( <a href="qaction.html">QAction</a> * coloraction )
{
if ( coloraction == setRedFont )
<a name="x2010"></a> editor-><a href="qtextedit.html#setColor">setColor</a>( red );
else
editor-><a href="qtextedit.html#setColor">setColor</a>( black );
}
</pre>
<p>See also <a href="qaction-examples.html">QAction Examples</a>.
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