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#!/usr/bin/env python
"""**************************************************************************
** $Id: fontdisplayer.py,v 1.2 2004/07/19 18:41:53 phil Exp $
**
** Copyright (C) 1992-2000 Trolltech AS. All rights reserved.
**
** This file is part of an example program for TQt. This example
** program may be used, distributed and modified without limitation.
**
***************************************************************************"""
import sys
from python_tqt.qt import *
class FontRowTable( TQFrame ):
def __init__( self, parent=None, name=None ):
TQFrame.__init__( self, parent, name )
self.setBackgroundMode(self.PaletteBase)
self.setFrameStyle(self.Panel|self.Sunken)
self.setMargin(8)
self.setRow(0)
self.row = 0
self.tablefont = TQFont( TQApplication.font() )
def sizeHint( self ) :
width = 16*self.cellSize().width()+TQSize(2,2).width()*(self.margin()+self.frameWidth())
height = 16*self.cellSize().height()+TQSize(2,2).height()*(self.margin()+self.frameWidth())
return TQSize(width,height)
def cellSize( self ) :
fm = self.fontMetrics()
return TQSize( fm.maxWidth(), fm.lineSpacing() + 1 )
def paintEvent( self, e ):
TQFrame.paintEvent(self, e)
p = TQPainter(self)
p.setClipRegion(e.region())
r = TQRect(e.rect())
fm = self.fontMetrics()
ml = self.frameWidth() + self.margin() + 1 + max(0,-fm.minLeftBearing())
mt = self.frameWidth() + self.margin()
cell = TQSize(int((self.width()-15-ml)/16),int((self.height()-15-mt)/16))
if not cell.width() or not cell.height() :
return
mini = int(r.left() / cell.width())
maxi = int((r.right()+cell.width()-1) / cell.width())
minj = int(r.top() / cell.height())
maxj = int((r.bottom()+cell.height()-1) / cell.height())
h = fm.height()
body = TQColor(255,255,192);
negative = TQColor(255,192,192);
positive = TQColor(192,192,255);
rnegative = TQColor(255,128,128);
rpositive = TQColor(128,128,255);
for j in range(minj, maxj+1, 1) :
for i in range(mini, maxi+1, 1) :
if i < 16 and j < 16 :
x = i*cell.width()
y = j*cell.height()
ch = TQChar(j*16+i) #,self.row) # just accept one argument!!!
if fm.inFont(ch) :
w = fm.width(ch)
l = fm.leftBearing(ch)
r = fm.rightBearing(ch)
x += ml
y += mt+h
p.fillRect(x,y,w,-h,TQBrush(body))
if w :
if l :
if l < 0: sign = negative
else: sign = positive
if l > 0: lsign = 0
else: lsign = 1
p.fillRect(x+lsign, int(y-h/2), abs(l),int(-h/2), TQBrush(sign))
if r :
if r < 0: sign = rnegative
else: sign = rpositive
if r > 0: rsign = r
else: rsign = 0
p.fillRect(int(x+w-rsign),y+2, abs(r),int(-h/2), TQBrush(sign))
s = TQString( ch )
p.setPen(TQPen(TQt.black))
p.drawText(x,y,s)
def setRow( self, r ) :
self.row = r
fm = self.fontMetrics()
str = " minLB=%d minRB=%d maxW=%d" % (fm.minLeftBearing(), fm.minRightBearing(), fm.maxWidth())
self.emit( PYSIGNAL("fontInformation"), ( TQString(str), ) )
self.update()
def chooseFont( self ) :
ok = 0
oldfont = TQFont( self.tablefont )
self.tablefont, ok = TQFontDialog.getFont(oldfont, self)
if ok:
self.setFont(self.tablefont)
else:
self.tablefont = oldfont
class FontDisplayer( TQMainWindow ) :
def __init__( self, parent=None, name=None ):
TQMainWindow.__init__( self, parent, name )
table = FontRowTable(self)
controls = TQToolBar(self)
TQLabel(self.tr("Row:"), controls)
self.row = TQSpinBox(0,255,1,controls)
controls.addSeparator()
fontbutton = TQPushButton(self.tr("Font..."), controls)
status = TQStatusBar(self)
self.connect( self.row, SIGNAL("valueChanged(int)"), table.setRow )
self.connect( fontbutton, SIGNAL("clicked()"), table.chooseFont )
self.connect( table, PYSIGNAL("fontInformation"),
status, SLOT("message(const TQString&)") )
table.setRow(0)
self.setCentralWidget(table)
def main( args ):
# Use an interesting font
TQApplication.setFont(TQFont("unifont",16))
app = TQApplication(sys.argv)
m = FontDisplayer()
sh = TQSize( m.centralWidget().sizeHint() )
m.resize(sh.width(), sh.height() + 3 * m.statusBar().height())
app.setMainWidget(m);
m.setCaption("TQt Example - TQFD");
m.show()
app.exec_loop()
if __name__=="__main__":
main(sys.argv)
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