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authorTimothy Pearson <kb9vqf@pearsoncomputing.net>2011-11-08 12:31:36 -0600
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+<title>Using Custom TQDialogs</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>Using Custom TQDialogs</h1>
+
+
+
+[ <a href="motif-walkthrough-3.html">Previous: Using TQt Standard Dialogs</a> ]
+[ <a href="motif-walkthrough.html">Home</a> ]
+[ <a href="motif-walkthrough-5.html">Next: Using Existing Dialogs with TQMotifDialog</a> ]
+<p> After we have replaced the standard dialogs, we move onto the custom
+dialogs. This project has a single custom dialog: the <em>Page Edit</em>
+dialog.
+<p> Instead of writing the code ourselves, we use <a href="designer-manual.html">TQt Designer</a> to design our dialog.
+Designing a custom dialog is beyond the scope of
+this document: see the <a href="designer-manual.html">TQt Designer Manual</a> if you're unfamiliar
+with TQt's visual design tool.
+<p> <h2> Replacing the <em>Page Edit</em> Dialog
+</h2>
+<a name="1"></a><p> The custom <a href="qdialog.html">TQDialog</a> description for the <em>Page Edit</em> dialog is saved
+as <tt>pageeditdialog.ui</tt>. We add this file to the project file by
+adding the line
+<pre>
+FORMS = pageeditdialog.ui
+</pre>
+
+to the <tt>.pro</tt> file, and regenerate the <tt>Makefile</tt>. The <em>uic</em>
+utility generates the code for our custom TQDialog, which is then
+compiled and linked into our application. (<em>uic</em> is invoked
+automatically from makefiles generated from <tt>.pro</tt> files.)
+<p> We need to pass the top-level <a href="qmotifwidget.html">TQMotifWidget</a> as the <em>client_data</em>
+argument to the <tt>EditPage</tt> function, which we will use as the parent
+for our new <tt>PageEditDialog</tt>. We do this the same way as we have
+done for the <em>Open</em> and <em>Save As</em> dialogs in <tt>todo.cpp</tt>.
+<p>
+
+<p> <pre></pre>
+<p> The <tt>EditPage()</tt> function is implemented in <tt>actions.cpp</tt>. We start
+by adding the includes needed for the <tt>PageEditDialog</tt> and <a href="qlineedit.html">TQLineEdit</a>.
+<p>
+
+<p> <pre></pre>
+<p> In the <tt>EditPage()</tt> function, We create the <tt>PageEditDialog</tt>, set
+the initial values of the three TQLineEdit widgets with values from the
+current page and execute the dialog.
+<p> <pre></pre><pre>
+ ...
+</pre>
+
+<p> At this point in the code, the page properties should be modified. The
+code to do this is in the <tt>DoEditPage()</tt> function. We move the
+contents of <tt>DoEditPage()</tt> to this point and remove the <tt>DoEditPage()</tt> function completely.
+<p> The <tt>Page</tt> struct defined in <tt>page.h</tt> stores strings in <tt>char*</tt>
+arrays. Since the PageEditDialog and the data it contains will be
+destroyed when we return from this function, we need to convert the
+unicode <a href="qstring.html">TQString</a> data into a <a href="qcstring.html">TQCString</a> in the local encoding and
+duplicate it with <a href="qcstring.html#qstrdup">qstrdup</a>().
+<p> <pre></pre>
+<p> The same process must be done for the minorTab text:
+<p> <pre></pre>
+<p> ... and for the majorTab text:
+<p> <pre></pre>
+<p> [ <a href="motif-walkthrough-3.html">Previous: Using TQt Standard Dialogs</a> ]
+[ <a href="motif-walkthrough.html">Home</a> ]
+[ <a href="motif-walkthrough-5.html">Next: Using Existing Dialogs with TQMotifDialog</a> ]
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+<a href="troll.html">Trolltech</a><td align=center><a href="trademarks.html">Trademarks</a>
+<td align=right><div align=right>TQt 3.3.8</div>
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