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diff --git a/doc/html/motif-walkthrough-2.html b/doc/html/motif-walkthrough-2.html new file mode 100644 index 00000000..cbe236da --- /dev/null +++ b/doc/html/motif-walkthrough-2.html @@ -0,0 +1,101 @@ +<!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/extensions/motif/doc/walkthrough.doc:243 --> +<html> +<head> +<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> +<title>Preparing to Migrate the User Interface</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>Preparing to Migrate the User Interface</h1> + + + +[ <a href="motif-walkthrough-1.html">Previous: Getting Started</a> ] +[ <a href="motif-walkthrough.html">Home</a> ] +[ <a href="motif-walkthrough-3.html">Next: Using TQt Standard Dialogs</a> ] +<p> We are ready to start migrating the user interface for our project. +As mentioned in the introduction, we do this in steps, ensuring that +our application is still usable at every step of the migration process. +<p> The user interface can be viewed as a hierarchy; each top-level window +and dialog depends upon a parent (which is another top-level window or +dialog). When using <a href="motif-extension.html#Motif">Motif</a> <tt>XmMainWindow</tt> widgets, these should be +viewed as two separate entities: the <em>Main Window</em> widget with the +popup-menu hierarchy and the <em>View</em> widget contained in the <em>Main Window</em> widget. The <em>View</em> widget depends on the <em>Main Window</em> +widget. +<p> We begin migrating the pieces that have no dependencies, and work our +way up the dependency tree until all the pieces have been migrated. +<p> The hierarchy for this project looks something like this: +<p> <center><img src="motif-todo.png" alt="Motif Todo Hierarchy"></center> +<p> We will begin by migrating and replacing all of the dialogs, then the +<em>Main Window</em> widget with popup-menu hierarchy, and finally the <em>View</em> widget. +<p> However, we are not ready to begin just yet. The migration process can +be long, but it does not have to be difficult. The <em>Open</em>, <em>Save As</em>, <em>Page Delete</em> and <em>IO Error</em> dialogs use Motif <tt>XmFileSelectionBox</tt> and <tt>XmMessageBox</tt> dialogs. TQt provides similar +functionality with <a href="qfiledialog.html">TQFileDialog</a> and <a href="qmessagebox.html">TQMessageBox</a>, which we can begin +using immediately. +<p> The <em>Print</em> dialog is special, however. The <em>Print</em> dialog cannot be +replaced until after we have replaced the <em>View</em> widget. TQt provides +a complete printing mechanism with <a href="qprinter.html">TQPrinter</a>, but we cannot start using +it until we have replaced the <em>View</em> widget. +<p> <h2> Removing the <em>Help</em> Dialog +</h2> +<a name="1"></a><p> The <em>Help</em> dialog is also special. Instead of replacing the <em>Help</em> +dialog with a custom <a href="qdialog.html">TQDialog</a>, we will use the <a href="helpsystem.html">TQt +Help System</a> classes to provide a more advanced online help. +However, we cannot start using classes like <a href="qtooltip.html">TQToolTip</a> and <a href="qwhatsthis.html">TQWhatsThis</a> +until we replace the <em>Main Window</em> and <em>View</em> widgets. +<p> The help text included with the original project is very small and +only contains information about the <tt>XmNoteBook</tt> widget. The use of +tooltips and whats-this text will suffice for this example. If your +migration project has a large online <a href="helpsystem.html#help-system">help system</a>, we recommend looking +at the <a href="helpviewer-example.html">Simple HTML Help Browser</a> +example for information on how to build an rich text help system with +hypertext navigation and full printing capabilities, or using <a href="assistant.html">TQt Assistant</a>. +<p> Removing the existing <em>Help</em> dialog is relatively simple. We remove +the <tt>Xmd/Help.h</tt>, <tt>Xmd/HelpP.h</tt> and <tt>Xmd/Help.c</tt> files from our +project file and regenerate our <tt>Makefile</tt>. +<p> The code to create the <em>Help</em> menu and <em>Help</em> dialog is in <tt>todo.cpp</tt>. We remove the <tt>Xmd/Help.h</tt> include, the <tt>*help_manager</tt> +resource string, the <tt>help_cb()</tt> function forward declaration and the +<tt>help_widget</tt> global variable. We also need to remove the code that +creates the <em>Help</em> dialog. We will also remove the code to create +the <em>Help</em> menu, since this menu is now empty. Finally, we remove +the <tt>help_cb()</tt> function implementation. +<p> The <em>Help</em> dialog is now removed from our project. We cannot add +<a href="qtooltip.html">TQToolTip</a> and <a href="qwhatsthis.html">TQWhatsThis</a> help at the moment, since we are still using +<tt>XmMainWindow</tt> for the <em>Main Window</em> widget. Once we have +migrated the <em>Main Window</em> and the popup-menu hierarchy, we can +begin using TQToolTip and TQWhatsThis for online help. +<p> [ <a href="motif-walkthrough-1.html">Previous: Getting Started</a> ] +[ <a href="motif-walkthrough.html">Home</a> ] +[ <a href="motif-walkthrough-3.html">Next: Using TQt Standard Dialogs</a> ] +<p> +<!-- 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>TQt 3.3.8</div> +</table></div></address></body> +</html> |