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