Add Qt3 development HEAD version

1 files changed, 155 insertions, 0 deletions

diff --git a/examples/qfd/fontdisplayer.cpp b/examples/qfd/fontdisplayer.cpp
new file mode 100644
index 0000000..0e67bee
--- /dev/null
+++ b/examples/qfd/fontdisplayer.cpp
@@ -0,0 +1,155 @@
+/****************************************************************************
+**
+** Copyright (C) 1992-2008 Trolltech ASA.  All rights reserved.
+**
+** This file is part of an example program for Qt.  This example
+** program may be used, distributed and modified without limitation.
+**
+*****************************************************************************/
+
+#include "fontdisplayer.h"
+#include <qapplication.h>
+#include <qslider.h>
+#include <qspinbox.h>
+#include <qpainter.h>
+#include <qtoolbar.h>
+#include <qstatusbar.h>
+#include <qlabel.h>
+#include <qpushbutton.h>
+#include <qfontdialog.h>
+#include <stdlib.h>
+
+
+FontRowTable::FontRowTable( QWidget* parent, const char* name ) :
+    QFrame(parent,name)
+{
+    setBackgroundMode(PaletteBase);
+    setFrameStyle(Panel|Sunken);
+    setMargin(8);
+    setRow(0);
+    tablefont = QApplication::font();
+}
+
+QSize FontRowTable::sizeHint() const
+{
+    return 24*cellSize()+QSize(2,2)*(margin()+frameWidth());
+}
+
+QSize FontRowTable::cellSize() const
+{
+    QFontMetrics fm = fontMetrics();
+    return QSize( fm.maxWidth(), fm.lineSpacing()+1 );
+}
+
+void FontRowTable::paintEvent( QPaintEvent* e )
+{
+    QFrame::paintEvent(e);
+    QPainter p(this);
+    p.setClipRegion(e->region());
+    QRect r = e->rect();
+    QFontMetrics fm = fontMetrics();
+    int ml = frameWidth()+margin() + 1 + QMAX(0,-fm.minLeftBearing());
+    int mt = frameWidth()+margin();
+    QSize cell((width()-15-ml)/16,(height()-15-mt)/16);
+
+    if ( !cell.width() || !cell.height() )
+	return;
+
+    int mini = r.left() / cell.width();
+    int maxi = (r.right()+cell.width()-1) / cell.width();
+    int minj = r.top() / cell.height();
+    int maxj = (r.bottom()+cell.height()-1) / cell.height();
+
+    int h = fm.height();
+
+    QColor body(255,255,192);
+    QColor negative(255,192,192);
+    QColor positive(192,192,255);
+    QColor rnegative(255,128,128);
+    QColor 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.width();
+		int y = j*cell.height();
+
+		QChar ch = QChar(j*16+i,row);
+
+		if ( fm.inFont(ch) ) {
+		    int w = fm.width(ch);
+		    int l = fm.leftBearing(ch);
+		    int r = fm.rightBearing(ch);
+
+		    x += ml;
+		    y += mt+h;
+
+		    p.fillRect(x,y,w,-h,body);
+		    if ( w ) {
+			if ( l ) {
+			    p.fillRect(x+(l>0?0:l), y-h/2, abs(l),-h/2,
+				       l < 0 ? negative : positive);
+			}
+			if ( r ) {
+			    p.fillRect(x+w-(r>0?r:0),y+2, abs(r),-h/2,
+				       r < 0 ? rnegative : rpositive);
+			}
+		    }
+		    QString s;
+		    s += ch;
+		    p.setPen(QPen(Qt::black));
+		    p.drawText(x,y,s);
+		}
+	    }
+	}
+    }
+}
+
+void FontRowTable::setRow(int r)
+{
+    row = r;
+
+    QFontMetrics fm = fontMetrics();
+    QFontInfo fi = fontInfo();
+    QString str = QString("%1 %2pt%3%4 mLB=%5 mRB=%6 mW=%7")
+		    .arg(fi.family())
+		    .arg(fi.pointSize())
+		    .arg(fi.bold() ? " bold" : "")
+		    .arg(fi.italic() ? " italic" : "")
+		    .arg(fm.minLeftBearing())
+		    .arg(fm.minRightBearing())
+		    .arg(fm.maxWidth());
+
+    emit fontInformation(str);
+    update();
+}
+
+void FontRowTable::chooseFont()
+{
+    bool ok;
+    QFont oldfont = tablefont;
+    tablefont = QFontDialog::getFont(&ok, oldfont, this);
+
+    if (ok)
+	setFont(tablefont);
+    else
+	tablefont = oldfont;
+}
+
+FontDisplayer::FontDisplayer( QWidget* parent, const char* name ) :
+    QMainWindow(parent,name)
+{
+    FontRowTable* table = new FontRowTable(this);
+    QToolBar* controls = new QToolBar(this);
+    (void) new QLabel(tr("Row:"), controls);
+    QSpinBox *row = new QSpinBox(0,255,1,controls);
+    controls->addSeparator();
+    QPushButton *fontbutton = new QPushButton(tr("Font..."), controls);
+
+    connect(row,SIGNAL(valueChanged(int)),table,SLOT(setRow(int)));
+    connect(fontbutton, SIGNAL(clicked()), table, SLOT(chooseFont()));
+    connect(table,SIGNAL(fontInformation(const QString&)),
+	    statusBar(),SLOT(message(const QString&)));
+    table->setRow(0);
+    setCentralWidget(table);
+}