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| author | Timothy Pearson <kb9vqf@pearsoncomputing.net> | 2011-07-10 15:24:15 -0500 |
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| committer | Timothy Pearson <kb9vqf@pearsoncomputing.net> | 2011-07-10 15:24:15 -0500 |
| commit | bd0f3345a938b35ce6a12f6150373b0955b8dd12 (patch) | |
| tree | 7a520322212d48ebcb9fbe1087e7fca28b76185c /doc/html/simple-font-demo-example.html | |
| download | qt3-bd0f3345a938b35ce6a12f6150373b0955b8dd12.tar.gz qt3-bd0f3345a938b35ce6a12f6150373b0955b8dd12.zip | |
Add Qt3 development HEAD version
Diffstat (limited to 'doc/html/simple-font-demo-example.html')
| -rw-r--r-- | doc/html/simple-font-demo-example.html | 273 |
1 files changed, 273 insertions, 0 deletions
diff --git a/doc/html/simple-font-demo-example.html b/doc/html/simple-font-demo-example.html new file mode 100644 index 0000000..3d15ce6 --- /dev/null +++ b/doc/html/simple-font-demo-example.html @@ -0,0 +1,273 @@ +<!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 QFont member functions</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>A simple demonstration of QFont member functions</h1> + + +<p> +<p> This example demonstrates the use of various +<a href="qfont.html">QFont</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 <<a href="qwidget-h.html">qwidget.h</a>> +#include <<a href="qfont-h.html">qfont.h</a>> + +class QTextView; +class QPushButton; + +class Viewer : public <a href="qwidget.html">QWidget</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">QFont</a> & ); + + <a href="qtextview.html">QTextView</a> * greetings; + <a href="qtextview.html">QTextView</a> * fontInfo; + + <a href="qpushbutton.html">QPushButton</a> * defaultButton; + <a href="qpushbutton.html">QPushButton</a> * sansSerifButton; + <a href="qpushbutton.html">QPushButton</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 <<a href="qstring-h.html">qstring.h</a>> +#include <<a href="qstringlist-h.html">qstringlist.h</a>> +#include <<a href="qtextview-h.html">qtextview.h</a>> +#include <<a href="qpushbutton-h.html">qpushbutton.h</a>> +#include <<a href="qlayout-h.html">qlayout.h</a>> + +<a name="f590"></a>Viewer::Viewer() + :<a href="qwidget.html">QWidget</a>() +{ + setFontSubstitutions(); + +<a name="x2850"></a> <a href="qstring.html">QString</a> greeting_heb = QString::<a href="qstring.html#fromUtf8">fromUtf8</a>( "\327\251\327\234\327\225\327\235" ); + <a href="qstring.html">QString</a> greeting_ru = QString::<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">QString</a> greeting_en( "Hello" ); + + greetings = new <a href="qtextview.html">QTextView</a>( this, "textview" ); + + greetings-><a href="qtextedit.html#setText">setText</a>( greeting_en + "\n" + + greeting_ru + "\n" + + greeting_heb ); + + fontInfo = new <a href="qtextview.html">QTextView</a>( this, "fontinfo" ); + + setDefault(); + + defaultButton = new <a href="qpushbutton.html">QPushButton</a>( "Default", this, + "pushbutton1" ); +<a name="x2860"></a> defaultButton-><a href="qwidget.html#setFont">setFont</a>( QFont( "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">QPushButton</a>( "Sans Serif", this, + "pushbutton2" ); + sansSerifButton-><a href="qwidget.html#setFont">setFont</a>( QFont( "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">QPushButton</a>( "Italics", this, + "pushbutton3" ); + italicsButton-><a href="qwidget.html#setFont">setFont</a>( QFont( "lucida", 12, QFont::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">QFont</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>( QFont::Bold ); +<a name="x2845"></a> font.<a href="qfont.html#setUnderline">setUnderline</a>( TRUE ); + + greetings-><a href="qwidget.html#setFont">setFont</a>( font ); + + showFontInfo( font ); +} + +void <a name="f592"></a>Viewer::setSansSerif() +{ + <a href="qfont.html">QFont</a> font( "Newyork", 18 ); +<a name="x2844"></a> font.<a href="qfont.html#setStyleHint">setStyleHint</a>( QFont::SansSerif ); + greetings-><a href="qwidget.html#setFont">setFont</a>( font ); + + showFontInfo( font ); +} + +void <a name="f593"></a>Viewer::setItalics() +{ + <a href="qfont.html">QFont</a> font( "Tokyo" ); + font.<a href="qfont.html#setPointSize">setPointSize</a>( 32 ); + font.<a href="qfont.html#setWeight">setWeight</a>( QFont::Bold ); +<a name="x2842"></a> font.<a href="qfont.html#setItalic">setItalic</a>( TRUE ); + + greetings-><a href="qwidget.html#setFont">setFont</a>( font ); + + showFontInfo( font ); +} + +void <a name="f594"></a>Viewer::showFontInfo( <a href="qfont.html">QFont</a> & font ) +{ + <a href="qfontinfo.html">QFontInfo</a> info( font ); + + <a href="qstring.html">QString</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> QString::<a href="qstring.html#number">number</a>( font.<a href="qfont.html#pointSize">pointSize</a>() ) + "pt<BR>" + + "Font used: \"" + +<a name="x2848"></a> info.<a href="qfontinfo.html#family">family</a>() + "\" " + +<a name="x2849"></a> QString::<a href="qstring.html#number">number</a>( info.<a href="qfontinfo.html#pointSize">pointSize</a>() ) + "pt<P>"; + +<a name="x2847"></a> <a href="qstringlist.html">QStringList</a> substitutions = QFont::<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>() + ":<UL>"; + + QStringList::Iterator i = substitutions.<a href="qvaluelist.html#begin">begin</a>(); + while ( i != substitutions.<a href="qvaluelist.html#end">end</a>() ){ + messageText += "<LI>\"" + (* i) + "\""; + i++; + } + messageText += "</UL>"; + } else { + messageText += "No substitutions exist for " + \ + font.<a href="qfont.html#family">family</a>() + "."; + } + + fontInfo-><a href="qtextedit.html#setText">setText</a>( messageText ); +} + +void <a name="f595"></a>Viewer::setFontSubstitutions() +{ + <a href="qstringlist.html">QStringList</a> substitutes; +<a name="x2853"></a> substitutes.<a href="qvaluelist.html#append">append</a>( "Times" ); + substitutes += "Mincho", + substitutes << "Arabic Newspaper" << "crox"; + +<a name="x2840"></a> QFont::<a href="qfont.html#insertSubstitutions">insertSubstitutions</a>( "Bavaria", substitutes ); + +<a name="x2839"></a> QFont::<a href="qfont.html#insertSubstitution">insertSubstitution</a>( "Tokyo", "Lucida" ); +} + + +// For those who prefer to use Qt 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">QHBoxLayout</a> * textViewContainer = new <a href="qhboxlayout.html">QHBoxLayout</a>(); + textViewContainer-><a href="qboxlayout.html#addWidget">addWidget</a>( greetings ); + textViewContainer-><a href="qboxlayout.html#addWidget">addWidget</a>( fontInfo ); + + <a href="qhboxlayout.html">QHBoxLayout</a> * buttonContainer = new <a href="qhboxlayout.html">QHBoxLayout</a>(); + + buttonContainer-><a href="qboxlayout.html#addWidget">addWidget</a>( defaultButton ); + buttonContainer-><a href="qboxlayout.html#addWidget">addWidget</a>( sansSerifButton ); + buttonContainer-><a href="qboxlayout.html#addWidget">addWidget</a>( italicsButton ); + +<a name="x2857"></a> int maxButtonHeight = defaultButton-><a href="qwidget.html#height">height</a>(); + + if ( sansSerifButton-><a href="qwidget.html#height">height</a>() > maxButtonHeight ) + maxButtonHeight = sansSerifButton-><a href="qwidget.html#height">height</a>(); + if ( italicsButton-><a href="qwidget.html#height">height</a>() > maxButtonHeight ) + maxButtonHeight = italicsButton-><a href="qwidget.html#height">height</a>(); + +<a name="x2859"></a> defaultButton-><a href="qwidget.html#setFixedHeight">setFixedHeight</a>( maxButtonHeight ); + sansSerifButton-><a href="qwidget.html#setFixedHeight">setFixedHeight</a>( maxButtonHeight ); + italicsButton-><a href="qwidget.html#setFixedHeight">setFixedHeight</a>( maxButtonHeight ); + + <a href="qvboxlayout.html">QVBoxLayout</a> * container = new <a href="qvboxlayout.html">QVBoxLayout</a>( this ); +<a name="x2835"></a> container-><a href="qboxlayout.html#addLayout">addLayout</a>( textViewContainer ); + container-><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 <<a href="qapplication-h.html">qapplication.h</a>> + +int main( int argc, char **argv ) +{ + <a href="qapplication.html">QApplication</a> app( argc, argv ); + Viewer * textViewer = new Viewer(); + textViewer-><a href="qwidget.html#setCaption">setCaption</a>( "Qt Example - Simple QFont Demo" ); + app.<a href="qapplication.html#setMainWidget">setMainWidget</a>( textViewer ); + textViewer-><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">QFont Examples</a>. + +<!-- 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>Qt 3.3.8</div> +</table></div></address></body> +</html> |