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| author | Timothy Pearson <kb9vqf@pearsoncomputing.net> | 2011-11-08 12:31:36 -0600 |
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| committer | Timothy Pearson <kb9vqf@pearsoncomputing.net> | 2011-11-08 12:31:36 -0600 |
| commit | d796c9dd933ab96ec83b9a634feedd5d32e1ba3f (patch) | |
| tree | 6e3dcca4f77e20ec8966c666aac7c35bd4704053 /doc/html/motif-walkthrough-9.html | |
| download | tqt3-d796c9dd933ab96ec83b9a634feedd5d32e1ba3f.tar.gz tqt3-d796c9dd933ab96ec83b9a634feedd5d32e1ba3f.zip | |
Test conversion to TQt3 from Qt3 8c6fc1f8e35fd264dd01c582ca5e7549b32ab731
Diffstat (limited to 'doc/html/motif-walkthrough-9.html')
| -rw-r--r-- | doc/html/motif-walkthrough-9.html | 104 |
1 files changed, 104 insertions, 0 deletions
diff --git a/doc/html/motif-walkthrough-9.html b/doc/html/motif-walkthrough-9.html new file mode 100644 index 00000000..4c0cc9dc --- /dev/null +++ b/doc/html/motif-walkthrough-9.html @@ -0,0 +1,104 @@ +<!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:1477 --> +<html> +<head> +<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> +<title>Replacing the Print Dialog</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>Replacing the Print Dialog</h1> + + + +[ <a href="motif-walkthrough-8.html">Previous: Replacing the View Widget</a> ] +[ <a href="motif-walkthrough.html">Home</a> ] +[ <a href="motif-walkthrough-10.html">Next: Continuing Development</a> ] +<p> The <em>Print</em> dialog is the last component in our application that +uses <a href="motif-extension.html#Motif">Motif</a>. The current <tt>Print()</tt> function does nothing more than +write the plain text to a temporary file, and then executes 'lpr' to +send the text to the printer. Since we will use <a href="qprinter.html">TQPrinter</a>, we do not +this function any more, so we remove it. The current <tt>MainWindow::filePrint()</tt> implementation is removed as well. We will +write a new <tt>MainWindow::filePrint()</tt> implementation in <tt>mainwindow.ui.h</tt>. +<p> Note: The steps involved in using the TQPrinter class are beyond the +scope of this walkthrough and will not be discussed here. The +TQPrinter Class Reference, <a href="qsimplerichtext.html">TQSimpleRichText</a> Class Reference and the +<a href="simple-application.html">Simple Application Walkthrough</a> +contain information on the use of TQPrinter. +<p> For completeness, the code to initialize a TQPrinter object is included below. +<p> + +<pre></pre> +<p> <h2> Using Rich Text for Printing +</h2> +<a name="1"></a><p> TQt provides rich text using a subset of HTML. The TQSimpleRichText +class makes rich-text printing simple. All we need to do is create a +string with the proper format tags inserted at the appropriate +places. For our example, we will keep the printing output similar to +previous versions. +<p> First, we create the format tags that we will use. +<p> <pre></pre> +<p> Next we just loop over all pages, appending the page label, contents +and formatting characters to a <tt>printtext</tt> variable (which is a +<a href="qstring.html">TQString</a>). +<p> <pre></pre> +<p> The rest of the <tt>MainWindow::filePrint()</tt> function is the actual +printing code. Here we simply create a <a href="qsimplerichtext.html">TQSimpleRichText</a> object using +the string we created above, and draw this string on the <a href="qprinter.html">TQPrinter</a> +object using <a href="qpainter.html">TQPainter</a>. +<p> <pre></pre> +<p> <h2> Removing the Dependency on Xt/Motif +</h2> +<a name="2"></a><p> Our application no longer uses any Xt or Motif widgets. We can now +finish removing the dependencies on Xt and Motif. +<p> First, we cleanup the <tt>#include</tt> statements in <tt>mainwindow.ui.h</tt>. +<p> + +<p> <pre></pre><pre></pre> +<p> The <tt>MainWindow::fileNew()</tt> function uses the <tt>Boolean</tt> and <tt>False</tt> +keywords from the Xt library. C++ has these built into the language, +so we use <tt>bool</tt> and <tt>false</tt> instead. +<p> The last modification needed to completely remove Xt and Motif from +our application is to stop using the <a href="qmotif.html">TQMotif</a> class. We remove the +qmotif.h <tt>#include</tt> statement from <tt>todo.cpp</tt>, and remove the +instantiation from the <tt>main()</tt> function. +<p> After doing this, we can remove the <tt>-lXm</tt> and <tt>-lqmotif</tt> from the +<tt>LIBS</tt> variable in our project file. Our project file also contains +source and headers for the the old custom Motif widgets previously +used in our application. We remove these as well. +<p> After regenerating the <tt>Makefile</tt> and building our project, we +confirm that the application works correctly. +<p> [ <a href="motif-walkthrough-8.html">Previous: Replacing the View Widget</a> ] +[ <a href="motif-walkthrough.html">Home</a> ] +[ <a href="motif-walkthrough-10.html">Next: Continuing Development</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> |