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Qt Toolkit - mainlyXt/editor.cpp example file
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<h1 align=center>Editor Example</h1>
<p>
This example shows two simple text editors, with most of the
program written in Xt. One editor is a Qt QMultiLineEdit, the
other is an Athena Widgets text widget. They are bound together
in an Xt form widget.
<pre>#include "<a name="qxt.h"></a><a href="qxt-h.html">qxt.h</a>"
#include <<a name="qmultilineedit.h"></a><a href="qmultilineedit-h.html">qmultilineedit.h</a>>
#include <<a name="qpainter.h"></a><a href="qpainter-h.html">qpainter.h</a>>
#include <<a name="qmessagebox.h"></a><a href="qmessagebox-h.html">qmessagebox.h</a>>
#include <X11/Shell.h>
#include <X11/StringDefs.h>
#include <X11/Xaw/Form.h>
#include <X11/Xaw/AsciiText.h>
static const char* QTEDMSG =
"This is a Qt widget.\nIt is a QMultiLineEdit.";
static const char* XTEDMSG =
"This is an Xt widget.\nIt is an asciiTextWidgetClass.";
class EncapsulatedQtWidget : public QXtWidget {
public:
<a name="QMultiLineEdit"></a><a href="qmultilineedit.html">QMultiLineEdit</a>* mle;
EncapsulatedQtWidget(Widget parent) :
<a name="QXtWidget"></a><a href="qxtwidget.html">QXtWidget</a>("editor", parent, TRUE)
{
mle = new <a href="qmultilineedit.html">QMultiLineEdit</a>(this);
mle-><a name="setText"></a><a href="qmultilineedit.html#3fd8c1">setText</a>(QTEDMSG);
}
void resizeEvent(<a name="QResizeEvent"></a><a href="qresizeevent.html">QResizeEvent</a>* e )
{
<a name="QXtWidget::resizeEvent"></a><a href="qxtwidget.html#71ff15">QXtWidget::resizeEvent</a>( e );
mle-><a name="resize"></a><a href="qwidget.html#ff9d07">resize</a>(width(),height());
}
};
main(int argc, char** argv)
{
XtAppContext app;
Widget toplevel = XtAppInitialize(
&app, "Editors",
0, 0, &argc, argv, 0, 0, 0);
<a name="QXtApplication"></a><a href="qxtapplication.html">QXtApplication</a> qapp(XtDisplay(toplevel));
Widget form = XtVaCreateManagedWidget("form", formWidgetClass, toplevel, 0);
EncapsulatedQtWidget qtchild(form);
Arg args[20];
Cardinal nargs=0;
XtSetArg(args[nargs], XtNwidth, 200); nargs++;
XtSetArg(args[nargs], XtNheight, 200); nargs++;
XtSetValues(qtchild.<a name="xtWidget"></a><a href="qxtwidget.html#a2c32d">xtWidget</a>(), args, nargs);
nargs=0;
XtSetArg(args[nargs], XtNeditType, XawtextEdit); nargs++;
XtSetArg(args[nargs], XtNstring, XTEDMSG); nargs++;
XtSetArg(args[nargs], XtNwidth, 200); nargs++;
XtSetArg(args[nargs], XtNheight, 200); nargs++;
XtSetArg(args[nargs], XtNfromHoriz, qtchild.<a href="qxtwidget.html#a2c32d">xtWidget</a>()); nargs++;
Widget xtchild = XtCreateManagedWidget("editor", asciiTextWidgetClass,
form, args, nargs);
XtRealizeWidget(toplevel);
// XSetInputFocus( qt_xdisplay(), qtchild.mle->winId(), RevertToParent, CurrentTime );
//XtAppMainLoop(app);
// or the equivalent:
XEvent xe;
while (1)
{
XtAppNextEvent(app, &xe);
XtDispatchEvent(&xe);
}
}
</pre>
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<td>Copyright 2001 Trolltech<td><a href="http://www.trolltech.com/trademarks.html">Trademarks</a>
<td align="right"><div align="right">Qt version 2.3.2</div>
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