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168 lines
4.0 KiB
168 lines
4.0 KiB
/***************************************************************************
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* $Id$
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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 org.trinitydesktop.qt.*;
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import java.math.*;
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class FontDisplayer extends TQMainWindow {
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class FontRowTable extends TQFrame {
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private TQFont tablefont;
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private int row;
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FontRowTable( TQWidget parent )
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{
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this(parent, null);
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}
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FontRowTable( TQWidget parent, String name )
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{
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super(parent,name);
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setBackgroundMode(PaletteBase);
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setFrameStyle(Panel|Sunken);
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setMargin(8);
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setRow(0);
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tablefont = TQApplication.font();
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}
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public TQSize sizeHint()
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{
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return new TQSize( 16*cellSize().width()+2*(margin()+frameWidth()),
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16*cellSize().height()+2*(margin()+frameWidth()) );
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}
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TQSize cellSize()
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{
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TQFontMetrics fm = fontMetrics();
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return new TQSize( fm.maxWidth(), fm.lineSpacing()+1 );
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}
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protected void paintEvent( TQPaintEvent e )
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{
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super.paintEvent(e);
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System.out.println("In paintEvent");
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TQPainter p = new TQPainter(this);
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p.setClipRegion(e.region());
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TQRect r = e.rect();
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TQFontMetrics fm = fontMetrics();
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int ml = frameWidth()+margin() + 1 + (-fm.minLeftBearing() > 0 ? -fm.minLeftBearing() : 0);
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int mt = frameWidth()+margin();
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TQSize cell = new TQSize((width()-15-ml)/16,(height()-15-mt)/16);
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if ( cell.width() == 0 || cell.height() == 0 )
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return;
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int mini = r.left() / cell.width();
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int maxi = (r.right()+cell.width()-1) / cell.width();
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int minj = r.top() / cell.height();
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int maxj = (r.bottom()+cell.height()-1) / cell.height();
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int h = fm.height();
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TQColor body = new TQColor(255,255,192);
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TQColor negative = new TQColor(255,192,192);
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TQColor positive = new TQColor(192,192,255);
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TQColor rnegative = new TQColor(255,128,128);
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TQColor rpositive = new TQColor(128,128,255);
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for (int j = minj; j<=maxj; j++) {
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for (int i = mini; i<=maxi; i++) {
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if ( i < 16 && j < 16 ) {
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int x = i * cell.width();
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int y = j* cell.height();
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char ch = (char) ((j*16+i) + (row*256));
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if ( fm.inFont(ch) ) {
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int w = fm.width(ch);
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int lb = fm.leftBearing(ch);
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int rb = 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,new TQBrush(body));
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if ( w != 0) {
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if ( lb != 0 ) {
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p.fillRect(x+(lb>0?0:lb), y-h/2, Math.abs(lb),-h/2,
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new TQBrush(lb < 0 ? negative : positive));
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}
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if ( rb != 0) {
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p.fillRect(x+w-(rb>0?rb:0),y+2, Math.abs(rb),-h/2,
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new TQBrush(rb < 0 ? rnegative : rpositive));
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}
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}
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String s = "";
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s += ch;
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p.setPen(new TQPen(Qt.black()));
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p.drawText(x,y,s);
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}
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}
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}
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}
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p.end();
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}
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void setRow(int r)
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{
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row = r;
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TQFontMetrics fm = fontMetrics();
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String str = "mLB=" + fm.minLeftBearing() +
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" mRB=" + fm.minRightBearing() +
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" mW=" + fm.maxWidth();
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emit("fontInformation", str);
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update();
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}
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void chooseFont()
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{
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boolean[] ok = { true };
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TQFont oldfont = tablefont;
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tablefont = TQFontDialog.getFont(ok, oldfont, this);
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if (ok[0])
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setFont(tablefont);
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else
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tablefont = oldfont;
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}
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}
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FontDisplayer( )
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{
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this(null, null);
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}
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FontDisplayer( TQWidget parent, String name )
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{
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super(parent,name);
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FontRowTable table = new FontRowTable(this);
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TQToolBar controls = new TQToolBar(this);
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new TQLabel(tr("Row:"), controls);
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TQSpinBox row = new TQSpinBox(0,255,1,controls);
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controls.addSeparator();
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TQPushButton fontbutton = new TQPushButton(tr("Font..."), controls);
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connect(row,TQ_SIGNAL("valueChanged(int)"),table,TQ_SLOT("setRow(int)"));
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connect(fontbutton, TQ_SIGNAL("clicked()"), table, TQ_SLOT("chooseFont()"));
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connect(table,TQ_SIGNAL("fontInformation(String)"),
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statusBar(),TQ_SLOT("message(String)"));
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table.setRow(0);
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setCentralWidget(table);
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}
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}
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