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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 > 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 TQt. This example
** program may be used, distributed and modified without limitation.
**
*****************************************************************************/
#ifndef FontDisplayer_H
#define FontDisplayer_H
#include < < a href = "qframe-h.html" > ntqframe.h< / a > >
#include < < a href = "tqmainwindow-h.html" > tqmainwindow.h< / a > >
class TQSlider;
class FontRowTable : public < a href = "ntqframe.html" > TQFrame< / a > {
< a href = "metaobjects.html#TQ_OBJECT" > TQ_OBJECT< / a >
public:
FontRowTable( < a href = "tqwidget.html" > TQWidget< / a > * parent=0, const char* name=0 );
< a href = "tqsize.html" > TQSize< / a > sizeHint() const;
signals:
void fontInformation(const < a href = "tqstring.html" > TQString< / a > & );
public slots:
void setRow(int);
void chooseFont();
protected:
< a href = "tqsize.html" > TQSize< / a > cellSize() const;
void paintEvent( < a href = "qpaintevent.html" > TQPaintEvent< / a > * );
private:
< a href = "ntqfont.html" > TQFont< / a > tablefont;
int row;
};
class FontDisplayer : public < a href = "tqmainwindow.html" > TQMainWindow< / a > {
TQ_OBJECT
public:
FontDisplayer( < a href = "tqwidget.html" > TQWidget< / 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 TQt. This example
** program may be used, distributed and modified without limitation.
**
*****************************************************************************/
#include "fontdisplayer.h"
#include < < a href = "qapplication-h.html" > ntqapplication.h< / a > >
#include < < a href = "qslider-h.html" > ntqslider.h< / a > >
#include < < a href = "qspinbox-h.html" > ntqspinbox.h< / a > >
#include < < a href = "qpainter-h.html" > ntqpainter.h< / a > >
#include < < a href = "tqtoolbar-h.html" > tqtoolbar.h< / a > >
#include < < a href = "tqstatusbar-h.html" > tqstatusbar.h< / a > >
#include < < a href = "qlabel-h.html" > ntqlabel.h< / a > >
#include < < a href = "qpushbutton-h.html" > ntqpushbutton.h< / a > >
#include < < a href = "qfontdialog-h.html" > ntqfontdialog.h< / a > >
#include < stdlib.h>
< a name = "f531" > < / a > FontRowTable::FontRowTable( < a href = "tqwidget.html" > TQWidget< / a > * parent, const char* name ) :
< a href = "ntqframe.html" > TQFrame< / a > (parent,name)
{
< a href = "tqwidget.html#setBackgroundMode" > setBackgroundMode< / a > (PaletteBase);
< a href = "ntqframe.html#setFrameStyle" > setFrameStyle< / a > (Panel|Sunken);
< a href = "ntqframe.html#setMargin" > setMargin< / a > (8);
setRow(0);
< a name = "x1979" > < / a > tablefont = TQApplication::< a href = "ntqapplication.html#font" > font< / a > ();
}
< a name = "x1996" > < / a > TQSize FontRowTable::< a href = "tqwidget.html#sizeHint" > sizeHint< / a > () const
{
return 24*cellSize()+TQSize(2,2)*(< a href = "ntqframe.html#margin" > margin< / a > ()+frameWidth());
}
TQSize < a name = "f532" > < / a > FontRowTable::cellSize() const
{
< a href = "ntqfontmetrics.html" > TQFontMetrics< / a > fm = < a href = "tqwidget.html#fontMetrics" > fontMetrics< / a > ();
< a name = "x1990" > < / a > < a name = "x1989" > < / a > return TQSize( fm.< a href = "ntqfontmetrics.html#maxWidth" > maxWidth< / a > (), fm.< a href = "ntqfontmetrics.html#lineSpacing" > lineSpacing< / a > ()+1 );
}
< a name = "x1995" > < / a > void FontRowTable::< a href = "ntqframe.html#paintEvent" > paintEvent< / a > ( < a href = "qpaintevent.html" > TQPaintEvent< / a > * e )
{
TQFrame::< a href = "ntqframe.html#paintEvent" > paintEvent< / a > (e);
< a href = "ntqpainter.html" > TQPainter< / a > p(this);
< a name = "x2002" > < / a > < a name = "x1999" > < / a > p.< a href = "ntqpainter.html#setClipRegion" > setClipRegion< / a > (e-> < a href = "qpaintevent.html#region" > region< / a > ());
< a name = "x2001" > < / a > < a href = "ntqrect.html" > TQRect< / a > r = e-> < a href = "qpaintevent.html#rect" > rect< / a > ();
< a href = "ntqfontmetrics.html" > TQFontMetrics< / a > fm = < a href = "tqwidget.html#fontMetrics" > fontMetrics< / a > ();
< a name = "x1991" > < / a > int ml = < a href = "ntqframe.html#frameWidth" > frameWidth< / a > ()+margin() + 1 + TQMAX(0,-fm.< a href = "ntqfontmetrics.html#minLeftBearing" > minLeftBearing< / a > ());
int mt = < a href = "ntqframe.html#frameWidth" > frameWidth< / a > ()+margin();
< a href = "tqsize.html" > TQSize< / a > cell((< a href = "tqwidget.html#width" > width< / a > ()-15-ml)/16,(< a href = "tqwidget.html#height" > height< / a > ()-15-mt)/16);
< a name = "x2008" > < / a > < a name = "x2007" > < / a > if ( !cell.< a href = "tqsize.html#width" > width< / a > () || !cell.< a href = "tqsize.html#height" > height< / a > () )
return;
int mini = r.< a href = "ntqrect.html#left" > left< / a > () / cell.< a href = "tqsize.html#width" > width< / a > ();
int maxi = (r.< a href = "ntqrect.html#right" > right< / a > ()+cell.< a href = "tqsize.html#width" > width< / a > ()-1) / cell.< a href = "tqsize.html#width" > width< / a > ();
int minj = r.< a href = "ntqrect.html#top" > top< / a > () / cell.< a href = "tqsize.html#height" > height< / a > ();
< a name = "x2003" > < / a > int maxj = (r.< a href = "ntqrect.html#bottom" > bottom< / a > ()+cell.< a href = "tqsize.html#height" > height< / a > ()-1) / cell.< a href = "tqsize.html#height" > height< / a > ();
< a name = "x1986" > < / a > int h = fm.< a href = "ntqfontmetrics.html#height" > height< / a > ();
< a href = "ntqcolor.html" > TQColor< / a > body(255,255,192);
< a href = "ntqcolor.html" > TQColor< / a > negative(255,192,192);
< a href = "ntqcolor.html" > TQColor< / a > positive(192,192,255);
< a href = "ntqcolor.html" > TQColor< / a > rnegative(255,128,128);
< a href = "ntqcolor.html" > TQColor< / 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 = "tqsize.html#width" > width< / a > ();
int y = j*cell.< a href = "tqsize.html#height" > height< / a > ();
< a href = "qchar.html" > TQChar< / a > ch = TQChar(j*16+i,row);
< a name = "x1987" > < / a > if ( fm.< a href = "ntqfontmetrics.html#inFont" > inFont< / a > (ch) ) {
< a name = "x1994" > < / a > int w = fm.< a href = "ntqfontmetrics.html#width" > width< / a > (ch);
< a name = "x1988" > < / a > int l = fm.< a href = "ntqfontmetrics.html#leftBearing" > leftBearing< / a > (ch);
< a name = "x1993" > < / a > int r = fm.< a href = "ntqfontmetrics.html#rightBearing" > rightBearing< / a > (ch);
x += ml;
y += mt+h;
< a name = "x1998" > < / a > p.< a href = "ntqpainter.html#fillRect" > fillRect< / a > (x,y,w,-h,body);
if ( w ) {
if ( l ) {
p.< a href = "ntqpainter.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 = "ntqpainter.html#fillRect" > fillRect< / a > (x+w-(r> 0?r:0),y+2, abs(r),-h/2,
r < 0 ? rnegative : rpositive);
}
}
< a href = "tqstring.html" > TQString< / a > s;
s += ch;
p.< a href = "ntqpainter.html#setPen" > setPen< / a > (TQPen(TQt::black));
p.< a href = "ntqpainter.html#drawText" > drawText< / a > (x,y,s);
}
}
}
}
}
void < a name = "f533" > < / a > FontRowTable::setRow(int r)
{
row = r;
< a href = "ntqfontmetrics.html" > TQFontMetrics< / a > fm = < a href = "tqwidget.html#fontMetrics" > fontMetrics< / a > ();
< a href = "ntqfontinfo.html" > TQFontInfo< / a > fi = < a href = "tqwidget.html#fontInfo" > fontInfo< / a > ();
< a href = "tqstring.html" > TQString< / a > str = TQString("%1 %2pt%3%4 mLB=%5 mRB=%6 mW=%7")
< a name = "x1983" > < / a > .arg(fi.< a href = "ntqfontinfo.html#family" > family< / a > ())
< a name = "x1985" > < / a > .arg(fi.< a href = "ntqfontinfo.html#pointSize" > pointSize< / a > ())
< a name = "x1982" > < / a > .arg(fi.< a href = "ntqfontinfo.html#bold" > bold< / a > () ? " bold" : "")
< a name = "x1984" > < / a > .arg(fi.< a href = "ntqfontinfo.html#italic" > italic< / a > () ? " italic" : "")
.arg(fm.< a href = "ntqfontmetrics.html#minLeftBearing" > minLeftBearing< / a > ())
< a name = "x1992" > < / a > .arg(fm.< a href = "ntqfontmetrics.html#minRightBearing" > minRightBearing< / a > ())
.arg(fm.< a href = "ntqfontmetrics.html#maxWidth" > maxWidth< / a > ());
emit fontInformation(str);
< a href = "tqwidget.html#update" > update< / a > ();
}
void < a name = "f534" > < / a > FontRowTable::chooseFont()
{
bool ok;
< a href = "ntqfont.html" > TQFont< / a > oldfont = tablefont;
< a name = "x1981" > < / a > tablefont = TQFontDialog::< a href = "ntqfontdialog.html#getFont" > getFont< / a > (& ok, oldfont, this);
if (ok)
< a href = "tqwidget.html#setFont" > setFont< / a > (tablefont);
else
tablefont = oldfont;
}
< a name = "f530" > < / a > FontDisplayer::FontDisplayer( < a href = "tqwidget.html" > TQWidget< / a > * parent, const char* name ) :
< a href = "tqmainwindow.html" > TQMainWindow< / a > (parent,name)
{
FontRowTable* table = new FontRowTable(this);
< a href = "tqtoolbar.html" > TQToolBar< / a > * controls = new < a href = "tqtoolbar.html" > TQToolBar< / a > (this);
(void) new < a href = "ntqlabel.html" > TQLabel< / a > (< a href = "tqobject.html#tr" > tr< / a > ("Row:"), controls);
< a href = "ntqspinbox.html" > TQSpinBox< / a > *row = new < a href = "ntqspinbox.html" > TQSpinBox< / a > (0,255,1,controls);
< a name = "x2010" > < / a > controls-> < a href = "tqtoolbar.html#addSeparator" > addSeparator< / a > ();
< a href = "ntqpushbutton.html" > TQPushButton< / a > *fontbutton = new < a href = "ntqpushbutton.html" > TQPushButton< / a > (< a href = "tqobject.html#tr" > tr< / a > ("Font..."), controls);
< a name = "x2009" > < / a > < a href = "tqobject.html#connect" > connect< / a > (row,TQ_SIGNAL(< a href = "ntqspinbox.html#valueChanged" > valueChanged< / a > (int)),table,TQ_SLOT(setRow(int)));
< a href = "tqobject.html#connect" > connect< / a > (fontbutton, TQ_SIGNAL(< a href = "ntqbutton.html#clicked" > clicked< / a > ()), table, TQ_SLOT(chooseFont()));
< a href = "tqobject.html#connect" > connect< / a > (table,TQ_SIGNAL(fontInformation(const < a href = "tqstring.html" > TQString< / a > & )),
< a href = "tqmainwindow.html#statusBar" > statusBar< / a > (),TQ_SLOT(message(const < a href = "tqstring.html" > TQString< / a > & )));
table-> setRow(0);
< a href = "tqmainwindow.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 TQt. This example
** program may be used, distributed and modified without limitation.
**
*****************************************************************************/
#include "fontdisplayer.h"
#include < < a href = "qapplication-h.html" > ntqapplication.h< / a > >
#include < < a href = "qslider-h.html" > ntqslider.h< / a > >
#include < < a href = "qpainter-h.html" > ntqpainter.h< / a > >
#include < < a href = "tqstatusbar-h.html" > tqstatusbar.h< / a > >
int main(int argc, char** argv)
{
< a href = "ntqapplication.html" > TQApplication< / a > app(argc,argv);
FontDisplayer m;
< a name = "x2013" > < / a > < a href = "tqsize.html" > TQSize< / a > sh = m.< a href = "tqmainwindow.html#centralWidget" > centralWidget< / a > ()-> sizeHint();
< a name = "x2017" > < / a > m.< a href = "tqwidget.html#resize" > resize< / a > (sh.< a href = "tqsize.html#width" > width< / a > (),
< a name = "x2016" > < / a > < a name = "x2015" > < / a > sh.< a href = "tqsize.html#height" > height< / a > ()+3*m.< a href = "tqmainwindow.html#statusBar" > statusBar< / a > ()-> height());
app.< a href = "ntqapplication.html#setMainWidget" > setMainWidget< / a > (& m);
m.< a href = "tqwidget.html#setCaption" > setCaption< / a > ("TQt Example - TQFD");
< a name = "x2014" > < / a > m.< a href = "tqwidget.html#show" > show< / a > ();
return app.< a href = "ntqapplication.html#exec" > exec< / a > ();
}
< / pre >
< p > See also < a href = "examples.html" > Examples< / a > .
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