diff options
Diffstat (limited to 'doc/html/qfd-example.html')
| -rw-r--r-- | doc/html/qfd-example.html | 295 |
1 files changed, 295 insertions, 0 deletions
diff --git a/doc/html/qfd-example.html b/doc/html/qfd-example.html new file mode 100644 index 0000000..3526be4 --- /dev/null +++ b/doc/html/qfd-example.html @@ -0,0 +1,295 @@ +<!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/qfd/qfd.doc:4 --> +<html> +<head> +<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> +<title>Font Displayer</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>Font Displayer</h1> + + +<p> +This example program displays all characters of a font. +<p> <hr> +<p> Header file: +<p> <pre>/**************************************************************************** +** $Id: qt/fontdisplayer.h 3.3.8 edited Jan 11 14:37 $ +** +** Copyright (C) 1992-2007 Trolltech ASA. All rights reserved. +** +** This file is part of an example program for Qt. This example +** program may be used, distributed and modified without limitation. +** +*****************************************************************************/ + +#ifndef FontDisplayer_H +#define FontDisplayer_H + +#include <<a href="qframe-h.html">qframe.h</a>> +#include <<a href="qmainwindow-h.html">qmainwindow.h</a>> + +class QSlider; + +class FontRowTable : public <a href="qframe.html">QFrame</a> { + <a href="metaobjects.html#Q_OBJECT">Q_OBJECT</a> +public: + FontRowTable( <a href="qwidget.html">QWidget</a>* parent=0, const char* name=0 ); + + <a href="qsize.html">QSize</a> sizeHint() const; + +signals: + void fontInformation(const <a href="qstring.html">QString</a>&); + +public slots: + void setRow(int); + void chooseFont(); + + +protected: + <a href="qsize.html">QSize</a> cellSize() const; + void paintEvent( <a href="qpaintevent.html">QPaintEvent</a>* ); +private: + <a href="qfont.html">QFont</a> tablefont; + int row; +}; + +class FontDisplayer : public <a href="qmainwindow.html">QMainWindow</a> { + Q_OBJECT +public: + FontDisplayer( <a href="qwidget.html">QWidget</a>* parent=0, const char* name=0 ); +}; + +#endif +</pre> + +<p> <hr> +<p> Implementation: +<p> <pre>/**************************************************************************** +** $Id: qt/fontdisplayer.cpp 3.3.8 edited Jan 11 14:37 $ +** +** Copyright (C) 1992-2007 Trolltech ASA. All rights reserved. +** +** This file is part of an example program for Qt. This example +** program may be used, distributed and modified without limitation. +** +*****************************************************************************/ + +#include "fontdisplayer.h" +#include <<a href="qapplication-h.html">qapplication.h</a>> +#include <<a href="qslider-h.html">qslider.h</a>> +#include <<a href="qspinbox-h.html">qspinbox.h</a>> +#include <<a href="qpainter-h.html">qpainter.h</a>> +#include <<a href="qtoolbar-h.html">qtoolbar.h</a>> +#include <<a href="qstatusbar-h.html">qstatusbar.h</a>> +#include <<a href="qlabel-h.html">qlabel.h</a>> +#include <<a href="qpushbutton-h.html">qpushbutton.h</a>> +#include <<a href="qfontdialog-h.html">qfontdialog.h</a>> +#include <stdlib.h> + + +<a name="f531"></a>FontRowTable::FontRowTable( <a href="qwidget.html">QWidget</a>* parent, const char* name ) : + <a href="qframe.html">QFrame</a>(parent,name) +{ + <a href="qwidget.html#setBackgroundMode">setBackgroundMode</a>(PaletteBase); + <a href="qframe.html#setFrameStyle">setFrameStyle</a>(Panel|Sunken); + <a href="qframe.html#setMargin">setMargin</a>(8); + setRow(0); +<a name="x1979"></a> tablefont = QApplication::<a href="qapplication.html#font">font</a>(); +} + +<a name="x1996"></a>QSize FontRowTable::<a href="qwidget.html#sizeHint">sizeHint</a>() const +{ + return 24*cellSize()+QSize(2,2)*(<a href="qframe.html#margin">margin</a>()+frameWidth()); +} + +QSize <a name="f532"></a>FontRowTable::cellSize() const +{ + <a href="qfontmetrics.html">QFontMetrics</a> fm = <a href="qwidget.html#fontMetrics">fontMetrics</a>(); +<a name="x1990"></a><a name="x1989"></a> return QSize( fm.<a href="qfontmetrics.html#maxWidth">maxWidth</a>(), fm.<a href="qfontmetrics.html#lineSpacing">lineSpacing</a>()+1 ); +} + +<a name="x1995"></a>void FontRowTable::<a href="qframe.html#paintEvent">paintEvent</a>( <a href="qpaintevent.html">QPaintEvent</a>* e ) +{ + QFrame::<a href="qframe.html#paintEvent">paintEvent</a>(e); + <a href="qpainter.html">QPainter</a> p(this); +<a name="x2002"></a><a name="x1999"></a> p.<a href="qpainter.html#setClipRegion">setClipRegion</a>(e-><a href="qpaintevent.html#region">region</a>()); +<a name="x2001"></a> <a href="qrect.html">QRect</a> r = e-><a href="qpaintevent.html#rect">rect</a>(); + <a href="qfontmetrics.html">QFontMetrics</a> fm = <a href="qwidget.html#fontMetrics">fontMetrics</a>(); +<a name="x1991"></a> int ml = <a href="qframe.html#frameWidth">frameWidth</a>()+margin() + 1 + QMAX(0,-fm.<a href="qfontmetrics.html#minLeftBearing">minLeftBearing</a>()); + int mt = <a href="qframe.html#frameWidth">frameWidth</a>()+margin(); + <a href="qsize.html">QSize</a> cell((<a href="qwidget.html#width">width</a>()-15-ml)/16,(<a href="qwidget.html#height">height</a>()-15-mt)/16); + +<a name="x2008"></a><a name="x2007"></a> if ( !cell.<a href="qsize.html#width">width</a>() || !cell.<a href="qsize.html#height">height</a>() ) + return; + + int mini = r.<a href="qrect.html#left">left</a>() / cell.<a href="qsize.html#width">width</a>(); + int maxi = (r.<a href="qrect.html#right">right</a>()+cell.<a href="qsize.html#width">width</a>()-1) / cell.<a href="qsize.html#width">width</a>(); + int minj = r.<a href="qrect.html#top">top</a>() / cell.<a href="qsize.html#height">height</a>(); +<a name="x2003"></a> int maxj = (r.<a href="qrect.html#bottom">bottom</a>()+cell.<a href="qsize.html#height">height</a>()-1) / cell.<a href="qsize.html#height">height</a>(); + +<a name="x1986"></a> int h = fm.<a href="qfontmetrics.html#height">height</a>(); + + <a href="qcolor.html">QColor</a> body(255,255,192); + <a href="qcolor.html">QColor</a> negative(255,192,192); + <a href="qcolor.html">QColor</a> positive(192,192,255); + <a href="qcolor.html">QColor</a> rnegative(255,128,128); + <a href="qcolor.html">QColor</a> rpositive(128,128,255); + + for (int j = minj; j<=maxj; j++) { + for (int i = mini; i<=maxi; i++) { + if ( i < 16 && j < 16 ) { + int x = i*cell.<a href="qsize.html#width">width</a>(); + int y = j*cell.<a href="qsize.html#height">height</a>(); + + <a href="qchar.html">QChar</a> ch = QChar(j*16+i,row); + +<a name="x1987"></a> if ( fm.<a href="qfontmetrics.html#inFont">inFont</a>(ch) ) { +<a name="x1994"></a> int w = fm.<a href="qfontmetrics.html#width">width</a>(ch); +<a name="x1988"></a> int l = fm.<a href="qfontmetrics.html#leftBearing">leftBearing</a>(ch); +<a name="x1993"></a> int r = fm.<a href="qfontmetrics.html#rightBearing">rightBearing</a>(ch); + + x += ml; + y += mt+h; + +<a name="x1998"></a> p.<a href="qpainter.html#fillRect">fillRect</a>(x,y,w,-h,body); + if ( w ) { + if ( l ) { + p.<a href="qpainter.html#fillRect">fillRect</a>(x+(l>0?0:l), y-h/2, abs(l),-h/2, + l < 0 ? negative : positive); + } + if ( r ) { + p.<a href="qpainter.html#fillRect">fillRect</a>(x+w-(r>0?r:0),y+2, abs(r),-h/2, + r < 0 ? rnegative : rpositive); + } + } + <a href="qstring.html">QString</a> s; + s += ch; + p.<a href="qpainter.html#setPen">setPen</a>(QPen(Qt::black)); + p.<a href="qpainter.html#drawText">drawText</a>(x,y,s); + } + } + } + } +} + +void <a name="f533"></a>FontRowTable::setRow(int r) +{ + row = r; + + <a href="qfontmetrics.html">QFontMetrics</a> fm = <a href="qwidget.html#fontMetrics">fontMetrics</a>(); + <a href="qfontinfo.html">QFontInfo</a> fi = <a href="qwidget.html#fontInfo">fontInfo</a>(); + <a href="qstring.html">QString</a> str = QString("%1 %2pt%3%4 mLB=%5 mRB=%6 mW=%7") +<a name="x1983"></a> .arg(fi.<a href="qfontinfo.html#family">family</a>()) +<a name="x1985"></a> .arg(fi.<a href="qfontinfo.html#pointSize">pointSize</a>()) +<a name="x1982"></a> .arg(fi.<a href="qfontinfo.html#bold">bold</a>() ? " bold" : "") +<a name="x1984"></a> .arg(fi.<a href="qfontinfo.html#italic">italic</a>() ? " italic" : "") + .arg(fm.<a href="qfontmetrics.html#minLeftBearing">minLeftBearing</a>()) +<a name="x1992"></a> .arg(fm.<a href="qfontmetrics.html#minRightBearing">minRightBearing</a>()) + .arg(fm.<a href="qfontmetrics.html#maxWidth">maxWidth</a>()); + + emit fontInformation(str); + <a href="qwidget.html#update">update</a>(); +} + +void <a name="f534"></a>FontRowTable::chooseFont() +{ + bool ok; + <a href="qfont.html">QFont</a> oldfont = tablefont; +<a name="x1981"></a> tablefont = QFontDialog::<a href="qfontdialog.html#getFont">getFont</a>(&ok, oldfont, this); + + if (ok) + <a href="qwidget.html#setFont">setFont</a>(tablefont); + else + tablefont = oldfont; +} + +<a name="f530"></a>FontDisplayer::FontDisplayer( <a href="qwidget.html">QWidget</a>* parent, const char* name ) : + <a href="qmainwindow.html">QMainWindow</a>(parent,name) +{ + FontRowTable* table = new FontRowTable(this); + <a href="qtoolbar.html">QToolBar</a>* controls = new <a href="qtoolbar.html">QToolBar</a>(this); + (void) new <a href="qlabel.html">QLabel</a>(<a href="qobject.html#tr">tr</a>("Row:"), controls); + <a href="qspinbox.html">QSpinBox</a> *row = new <a href="qspinbox.html">QSpinBox</a>(0,255,1,controls); +<a name="x2010"></a> controls-><a href="qtoolbar.html#addSeparator">addSeparator</a>(); + <a href="qpushbutton.html">QPushButton</a> *fontbutton = new <a href="qpushbutton.html">QPushButton</a>(<a href="qobject.html#tr">tr</a>("Font..."), controls); + +<a name="x2009"></a> <a href="qobject.html#connect">connect</a>(row,SIGNAL(<a href="qspinbox.html#valueChanged">valueChanged</a>(int)),table,SLOT(setRow(int))); + <a href="qobject.html#connect">connect</a>(fontbutton, SIGNAL(<a href="qbutton.html#clicked">clicked</a>()), table, SLOT(chooseFont())); + <a href="qobject.html#connect">connect</a>(table,SIGNAL(fontInformation(const <a href="qstring.html">QString</a>&)), + <a href="qmainwindow.html#statusBar">statusBar</a>(),SLOT(message(const <a href="qstring.html">QString</a>&))); + table->setRow(0); + <a href="qmainwindow.html#setCentralWidget">setCentralWidget</a>(table); +} +</pre> + +<p> <hr> +<p> Main: +<p> <pre>/**************************************************************************** +** $Id: qt/qfd.cpp 3.3.8 edited Jan 11 14:37 $ +** +** Copyright (C) 1992-2007 Trolltech ASA. All rights reserved. +** +** This file is part of an example program for Qt. This example +** program may be used, distributed and modified without limitation. +** +*****************************************************************************/ + +#include "fontdisplayer.h" + +#include <<a href="qapplication-h.html">qapplication.h</a>> +#include <<a href="qslider-h.html">qslider.h</a>> +#include <<a href="qpainter-h.html">qpainter.h</a>> +#include <<a href="qstatusbar-h.html">qstatusbar.h</a>> + + + +int main(int argc, char** argv) +{ + <a href="qapplication.html">QApplication</a> app(argc,argv); + + FontDisplayer m; +<a name="x2013"></a> <a href="qsize.html">QSize</a> sh = m.<a href="qmainwindow.html#centralWidget">centralWidget</a>()->sizeHint(); +<a name="x2017"></a> m.<a href="qwidget.html#resize">resize</a>(sh.<a href="qsize.html#width">width</a>(), +<a name="x2016"></a><a name="x2015"></a> sh.<a href="qsize.html#height">height</a>()+3*m.<a href="qmainwindow.html#statusBar">statusBar</a>()->height()); + app.<a href="qapplication.html#setMainWidget">setMainWidget</a>(&m); + m.<a href="qwidget.html#setCaption">setCaption</a>("Qt Example - QFD"); +<a name="x2014"></a> m.<a href="qwidget.html#show">show</a>(); + + return app.<a href="qapplication.html#exec">exec</a>(); +} +</pre> + +<p>See also <a href="examples.html">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> |