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Diffstat (limited to 'python/pyqt/examples3/fontdisplayer.py')
-rwxr-xr-x | python/pyqt/examples3/fontdisplayer.py | 148 |
1 files changed, 148 insertions, 0 deletions
diff --git a/python/pyqt/examples3/fontdisplayer.py b/python/pyqt/examples3/fontdisplayer.py new file mode 100755 index 00000000..cb8531a4 --- /dev/null +++ b/python/pyqt/examples3/fontdisplayer.py @@ -0,0 +1,148 @@ +#!/usr/bin/env python + +"""************************************************************************** +** $Id$ +** +** Copyright (C) 1992-2000 Trolltech AS. All rights reserved. +** +** This file is part of an example program for Qt. This example +** program may be used, distributed and modified without limitation. +** +***************************************************************************""" + +import sys +from qt import * + +class FontRowTable( QFrame ): + def __init__( self, parent=None, name=None ): + QFrame.__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 = QFont( QApplication.font() ) + + def sizeHint( self ) : + width = 16*self.cellSize().width()+QSize(2,2).width()*(self.margin()+self.frameWidth()) + height = 16*self.cellSize().height()+QSize(2,2).height()*(self.margin()+self.frameWidth()) + return QSize(width,height) + + def cellSize( self ) : + fm = self.fontMetrics() + return QSize( fm.maxWidth(), fm.lineSpacing() + 1 ) + + def paintEvent( self, e ): + QFrame.paintEvent(self, e) + p = QPainter(self) + p.setClipRegion(e.region()) + r = QRect(e.rect()) + fm = self.fontMetrics() + ml = self.frameWidth() + self.margin() + 1 + max(0,-fm.minLeftBearing()) + mt = self.frameWidth() + self.margin() + cell = QSize((self.width()-15-ml)/16,(self.height()-15-mt)/16) + + if not cell.width() or not cell.height() : + return + + mini = r.left() / cell.width() + maxi = (r.right()+cell.width()-1) / cell.width() + minj = r.top() / cell.height() + maxj = (r.bottom()+cell.height()-1) / cell.height() + + h = fm.height() + + body = QColor(255,255,192); + negative = QColor(255,192,192); + positive = QColor(192,192,255); + rnegative = QColor(255,128,128); + rpositive = QColor(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 = QChar(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,QBrush(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, y-h/2, abs(l),-h/2, QBrush(sign)) + if r : + if r < 0: sign = rnegative + else: sign = rpositive + if r > 0: rsign = r + else: rsign = 0 + p.fillRect(x+w-rsign,y+2, abs(r),-h/2, QBrush(sign)) + s = QString( ch ) + p.setPen(QPen(Qt.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"), ( QString(str), ) ) + self.update() + + def chooseFont( self ) : + ok = 0 + oldfont = QFont( self.tablefont ) + self.tablefont, ok = QFontDialog.getFont(oldfont, self) + if ok: + self.setFont(self.tablefont) + else: + self.tablefont = oldfont + +class FontDisplayer( QMainWindow ) : + def __init__( self, parent=None, name=None ): + QMainWindow.__init__( self, parent, name ) + table = FontRowTable(self) + controls = QToolBar(self) + + QLabel(self.tr("Row:"), controls) + self.row = QSpinBox(0,255,1,controls) + controls.addSeparator() + fontbutton = QPushButton(self.tr("Font..."), controls) + status = QStatusBar(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 QString&)") ) + table.setRow(0) + self.setCentralWidget(table) + +def main( args ): + # Use an interesting font + QApplication.setFont(QFont("unifont",16)) + app = QApplication(sys.argv) + + m = FontDisplayer() + sh = QSize( m.centralWidget().sizeHint() ) + m.resize(sh.width(), sh.height() + 3 * m.statusBar().height()) + app.setMainWidget(m); + m.setCaption("Qt Example - QFD"); + m.show() + + app.exec_loop() + +if __name__=="__main__": + main(sys.argv) |