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libqt3-devel-3.0.2-2mdk.i586.rpm

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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>Editors in an Xt form</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.
<hr>
Implementation:
<p> <pre>#include "qxt.h"
#include &lt;<a href="qmultilineedit-h.html">qmultilineedit.h</a>&gt;
#include &lt;<a href="qpainter-h.html">qpainter.h</a>&gt;
#include &lt;<a href="qmessagebox-h.html">qmessagebox.h</a>&gt;
#include &lt;X11/Shell.h&gt;
#include &lt;X11/StringDefs.h&gt;
#include &lt;X11/Xaw/Form.h&gt;
#include &lt;X11/Xaw/AsciiText.h&gt;

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 <a href="qxtwidget.html">QXtWidget</a> {
public:
    <a href="qmultilineedit.html">QMultiLineEdit</a>* mle;
    EncapsulatedQtWidget(Widget parent) :
        <a href="qxtwidget.html">QXtWidget</a>("editor", parent, TRUE)
    {
        mle = new <a href="qmultilineedit.html">QMultiLineEdit</a>(this);
<a name="x2572"></a>        mle-&gt;<a href="qtextedit.html#setText">setText</a>(QTEDMSG);
    }

    void resizeEvent(QResizeEvent* e )
    {
<a name="x2574"></a>        QXtWidget::<a href="qwidget.html#resizeEvent">resizeEvent</a>( e );
        mle-&gt;<a href="qwidget.html#resize">resize</a>(width(),height());
    }
};

int main(int argc, char** argv)
{
    XtAppContext app;

    Widget toplevel = XtAppInitialize(
        &amp;app, "Editors",
        0, 0, &amp;argc, argv, 0, 0, 0);
    <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++;
<a name="x2576"></a>    XtSetValues(qtchild.<a href="qxtwidget.html#xtWidget">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#xtWidget">xtWidget</a>()); nargs++;
    Widget xtchild = XtCreateManagedWidget("editor", asciiTextWidgetClass,
        form, args, nargs);

    XtRealizeWidget(toplevel);

<a name="x2575"></a>//     XSetInputFocus( qt_xdisplay(), qtchild.mle-&gt;<a href="qwidget.html#winId">winId</a>(), RevertToParent, CurrentTime );


    //XtAppMainLoop(app);

    // or the equivalent:

    XEvent xe;
    while (1)
    {
        XtAppNextEvent(app, &amp;xe);
        XtDispatchEvent(&amp;xe);
    }
}
</pre>

<p>See also <a href="xt-motif-examples.html">Qt Xt/Motif Support Extension</a>.

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