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authorTimothy Pearson <kb9vqf@pearsoncomputing.net>2011-11-08 12:31:36 -0600
committerTimothy Pearson <kb9vqf@pearsoncomputing.net>2011-11-08 12:31:36 -0600
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tree6e3dcca4f77e20ec8966c666aac7c35bd4704053 /doc/html/simple-font-demo-example.html
downloadtqt3-d796c9dd933ab96ec83b9a634feedd5d32e1ba3f.tar.gz
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+<!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/examples/fonts/simple-qfont-demo/simple-qfont-demo.doc:1 -->
+<html>
+<head>
+<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
+<title>A simple demonstration of TQFont member functions</title>
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+<font color="#004faf">Functions</font></a>
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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>A simple demonstration of TQFont member functions</h1>
+
+
+<p>
+<p> This example demonstrates the use of various
+<a href="qfont.html">TQFont</a> member functions.
+<p> <hr>
+<p> The main window API (viewer.h):
+<p> <pre>/* $Id: qt/viewer.h 3.3.8 edited May 27 2003 $ */
+
+#ifndef VIEWER_H
+#define VIEWER_H
+
+
+#include &lt;<a href="qwidget-h.html">qwidget.h</a>&gt;
+#include &lt;<a href="qfont-h.html">qfont.h</a>&gt;
+
+class TQTextView;
+class TQPushButton;
+
+class Viewer : public <a href="qwidget.html">TQWidget</a>
+{
+<a href="metaobjects.html#Q_OBJECT">Q_OBJECT</a>
+
+public:
+ Viewer();
+
+private slots:
+ void setDefault();
+ void setSansSerif();
+ void setItalics();
+
+private:
+ void setFontSubstitutions();
+ void layout();
+ void showFontInfo( <a href="qfont.html">TQFont</a> &amp; );
+
+ <a href="qtextview.html">TQTextView</a> * greetings;
+ <a href="qtextview.html">TQTextView</a> * fontInfo;
+
+ <a href="qpushbutton.html">TQPushButton</a> * defaultButton;
+ <a href="qpushbutton.html">TQPushButton</a> * sansSerifButton;
+ <a href="qpushbutton.html">TQPushButton</a> * italicsButton;
+};
+
+#endif
+</pre>
+
+<p> <hr>
+<p> The main window implementation (viewer.cpp):
+<p> <pre>/* $Id: qt/viewer.cpp 3.3.8 edited May 27 2003 $ */
+
+#include "viewer.h"
+#include &lt;<a href="qstring-h.html">qstring.h</a>&gt;
+#include &lt;<a href="qstringlist-h.html">qstringlist.h</a>&gt;
+#include &lt;<a href="qtextview-h.html">qtextview.h</a>&gt;
+#include &lt;<a href="qpushbutton-h.html">qpushbutton.h</a>&gt;
+#include &lt;<a href="qlayout-h.html">qlayout.h</a>&gt;
+
+<a name="f590"></a>Viewer::Viewer()
+ :<a href="qwidget.html">TQWidget</a>()
+{
+ setFontSubstitutions();
+
+<a name="x2850"></a> <a href="qstring.html">TQString</a> greeting_heb = TQString::<a href="qstring.html#fromUtf8">fromUtf8</a>( "\327\251\327\234\327\225\327\235" );
+ <a href="qstring.html">TQString</a> greeting_ru = TQString::<a href="qstring.html#fromUtf8">fromUtf8</a>( "\320\227\320\264\321\200\320\260\320\262\321\201\321\202\320\262\321\203\320\271\321\202\320\265" );
+ <a href="qstring.html">TQString</a> greeting_en( "Hello" );
+
+ greetings = new <a href="qtextview.html">TQTextView</a>( this, "textview" );
+
+ greetings-&gt;<a href="qtextedit.html#setText">setText</a>( greeting_en + "\n" +
+ greeting_ru + "\n" +
+ greeting_heb );
+
+ fontInfo = new <a href="qtextview.html">TQTextView</a>( this, "fontinfo" );
+
+ setDefault();
+
+ defaultButton = new <a href="qpushbutton.html">TQPushButton</a>( "Default", this,
+ "pushbutton1" );
+<a name="x2860"></a> defaultButton-&gt;<a href="qwidget.html#setFont">setFont</a>( TQFont( "times" ) );
+ <a href="qobject.html#connect">connect</a>( defaultButton, SIGNAL( <a href="qbutton.html#clicked">clicked</a>() ),
+ this, SLOT( setDefault() ) );
+
+ sansSerifButton = new <a href="qpushbutton.html">TQPushButton</a>( "Sans Serif", this,
+ "pushbutton2" );
+ sansSerifButton-&gt;<a href="qwidget.html#setFont">setFont</a>( TQFont( "Helvetica", 12 ) );
+ <a href="qobject.html#connect">connect</a>( sansSerifButton, SIGNAL( <a href="qbutton.html#clicked">clicked</a>() ),
+ this, SLOT( setSansSerif() ) );
+
+ italicsButton = new <a href="qpushbutton.html">TQPushButton</a>( "Italics", this,
+ "pushbutton3" );
+ italicsButton-&gt;<a href="qwidget.html#setFont">setFont</a>( TQFont( "lucida", 12, TQFont::Bold, TRUE ) );
+ <a href="qobject.html#connect">connect</a>( italicsButton, SIGNAL( <a href="qbutton.html#clicked">clicked</a>() ),
+ this, SLOT( setItalics() ) );
+
+ <a href="qwidget.html#layout">layout</a>();
+}
+
+void <a name="f591"></a>Viewer::setDefault()
+{
+ <a href="qfont.html">TQFont</a> font( "Bavaria" );
+<a name="x2843"></a> font.<a href="qfont.html#setPointSize">setPointSize</a>( 24 );
+
+<a name="x2846"></a> font.<a href="qfont.html#setWeight">setWeight</a>( TQFont::Bold );
+<a name="x2845"></a> font.<a href="qfont.html#setUnderline">setUnderline</a>( TRUE );
+
+ greetings-&gt;<a href="qwidget.html#setFont">setFont</a>( font );
+
+ showFontInfo( font );
+}
+
+void <a name="f592"></a>Viewer::setSansSerif()
+{
+ <a href="qfont.html">TQFont</a> font( "Newyork", 18 );
+<a name="x2844"></a> font.<a href="qfont.html#setStyleHint">setStyleHint</a>( TQFont::SansSerif );
+ greetings-&gt;<a href="qwidget.html#setFont">setFont</a>( font );
+
+ showFontInfo( font );
+}
+
+void <a name="f593"></a>Viewer::setItalics()
+{
+ <a href="qfont.html">TQFont</a> font( "Tokyo" );
+ font.<a href="qfont.html#setPointSize">setPointSize</a>( 32 );
+ font.<a href="qfont.html#setWeight">setWeight</a>( TQFont::Bold );
+<a name="x2842"></a> font.<a href="qfont.html#setItalic">setItalic</a>( TRUE );
+
+ greetings-&gt;<a href="qwidget.html#setFont">setFont</a>( font );
+
+ showFontInfo( font );
+}
+
+void <a name="f594"></a>Viewer::showFontInfo( <a href="qfont.html">TQFont</a> &amp; font )
+{
+ <a href="qfontinfo.html">TQFontInfo</a> info( font );
+
+ <a href="qstring.html">TQString</a> messageText;
+ messageText = "Font requested: \"" +
+<a name="x2838"></a> font.<a href="qfont.html#family">family</a>() + "\" " +
+<a name="x2851"></a><a name="x2841"></a> TQString::<a href="qstring.html#number">number</a>( font.<a href="qfont.html#pointSize">pointSize</a>() ) + "pt&lt;BR&gt;" +
+ "Font used: \"" +
+<a name="x2848"></a> info.<a href="qfontinfo.html#family">family</a>() + "\" " +
+<a name="x2849"></a> TQString::<a href="qstring.html#number">number</a>( info.<a href="qfontinfo.html#pointSize">pointSize</a>() ) + "pt&lt;P&gt;";
+
+<a name="x2847"></a> <a href="qstringlist.html">TQStringList</a> substitutions = TQFont::<a href="qfont.html#substitutes">substitutes</a>( font.<a href="qfont.html#family">family</a>() );
+
+<a name="x2856"></a> if ( ! substitutions.<a href="qvaluelist.html#isEmpty">isEmpty</a>() ){
+ messageText += "The following substitutions exist for " + \
+ font.<a href="qfont.html#family">family</a>() + ":&lt;UL&gt;";
+
+ TQStringList::Iterator i = substitutions.<a href="qvaluelist.html#begin">begin</a>();
+ while ( i != substitutions.<a href="qvaluelist.html#end">end</a>() ){
+ messageText += "&lt;LI&gt;\"" + (* i) + "\"";
+ i++;
+ }
+ messageText += "&lt;/UL&gt;";
+ } else {
+ messageText += "No substitutions exist for " + \
+ font.<a href="qfont.html#family">family</a>() + ".";
+ }
+
+ fontInfo-&gt;<a href="qtextedit.html#setText">setText</a>( messageText );
+}
+
+void <a name="f595"></a>Viewer::setFontSubstitutions()
+{
+ <a href="qstringlist.html">TQStringList</a> substitutes;
+<a name="x2853"></a> substitutes.<a href="qvaluelist.html#append">append</a>( "Times" );
+ substitutes += "Mincho",
+ substitutes &lt;&lt; "Arabic Newspaper" &lt;&lt; "crox";
+
+<a name="x2840"></a> TQFont::<a href="qfont.html#insertSubstitutions">insertSubstitutions</a>( "Bavaria", substitutes );
+
+<a name="x2839"></a> TQFont::<a href="qfont.html#insertSubstitution">insertSubstitution</a>( "Tokyo", "Lucida" );
+}
+
+
+// For those who prefer to use TQt Designer for creating GUIs
+// the following function might not be of particular interest:
+// all it does is creating the widget layout.
+
+<a name="x2858"></a>void Viewer::<a href="qwidget.html#layout">layout</a>()
+{
+ <a href="qhboxlayout.html">TQHBoxLayout</a> * textViewContainer = new <a href="qhboxlayout.html">TQHBoxLayout</a>();
+ textViewContainer-&gt;<a href="qboxlayout.html#addWidget">addWidget</a>( greetings );
+ textViewContainer-&gt;<a href="qboxlayout.html#addWidget">addWidget</a>( fontInfo );
+
+ <a href="qhboxlayout.html">TQHBoxLayout</a> * buttonContainer = new <a href="qhboxlayout.html">TQHBoxLayout</a>();
+
+ buttonContainer-&gt;<a href="qboxlayout.html#addWidget">addWidget</a>( defaultButton );
+ buttonContainer-&gt;<a href="qboxlayout.html#addWidget">addWidget</a>( sansSerifButton );
+ buttonContainer-&gt;<a href="qboxlayout.html#addWidget">addWidget</a>( italicsButton );
+
+<a name="x2857"></a> int maxButtonHeight = defaultButton-&gt;<a href="qwidget.html#height">height</a>();
+
+ if ( sansSerifButton-&gt;<a href="qwidget.html#height">height</a>() &gt; maxButtonHeight )
+ maxButtonHeight = sansSerifButton-&gt;<a href="qwidget.html#height">height</a>();
+ if ( italicsButton-&gt;<a href="qwidget.html#height">height</a>() &gt; maxButtonHeight )
+ maxButtonHeight = italicsButton-&gt;<a href="qwidget.html#height">height</a>();
+
+<a name="x2859"></a> defaultButton-&gt;<a href="qwidget.html#setFixedHeight">setFixedHeight</a>( maxButtonHeight );
+ sansSerifButton-&gt;<a href="qwidget.html#setFixedHeight">setFixedHeight</a>( maxButtonHeight );
+ italicsButton-&gt;<a href="qwidget.html#setFixedHeight">setFixedHeight</a>( maxButtonHeight );
+
+ <a href="qvboxlayout.html">TQVBoxLayout</a> * container = new <a href="qvboxlayout.html">TQVBoxLayout</a>( this );
+<a name="x2835"></a> container-&gt;<a href="qboxlayout.html#addLayout">addLayout</a>( textViewContainer );
+ container-&gt;<a href="qboxlayout.html#addLayout">addLayout</a>( buttonContainer );
+
+ <a href="qwidget.html#resize">resize</a>( 700, 250 );
+}
+</pre>
+
+<p> <hr>
+<p> main() program (simple-qfont-demo.cpp):
+<p> <pre>/* $Id: qt/simple-qfont-demo.cpp 3.3.8 edited May 27 2003 $ */
+
+#include "viewer.h"
+
+#include &lt;<a href="qapplication-h.html">qapplication.h</a>&gt;
+
+int main( int argc, char **argv )
+{
+ <a href="qapplication.html">TQApplication</a> app( argc, argv );
+ Viewer * textViewer = new Viewer();
+ textViewer-&gt;<a href="qwidget.html#setCaption">setCaption</a>( "TQt Example - Simple TQFont Demo" );
+ app.<a href="qapplication.html#setMainWidget">setMainWidget</a>( textViewer );
+ textViewer-&gt;<a href="qwidget.html#show">show</a>();
+ return app.<a href="qapplication.html#exec">exec</a>();
+}
+</pre>
+
+<p> <p>See also <a href="qfont-examples.html">TQFont Examples</a>.
+
+<!-- eof -->
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+<td align=right><div align=right>TQt 3.3.8</div>
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+</html>