From bd0f3345a938b35ce6a12f6150373b0955b8dd12 Mon Sep 17 00:00:00 2001 From: Timothy Pearson Date: Sun, 10 Jul 2011 15:24:15 -0500 Subject: Add Qt3 development HEAD version --- doc/html/qfd-example.html | 295 ++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 295 insertions(+) create mode 100644 doc/html/qfd-example.html (limited to 'doc/html/qfd-example.html') diff --git a/doc/html/qfd-example.html b/doc/html/qfd-example.html new file mode 100644 index 0000000..3526be4 --- /dev/null +++ b/doc/html/qfd-example.html @@ -0,0 +1,295 @@ + + + + + +Font Displayer + + + + + + + +

Font Displayer

+ + +

+This example program displays all characters of a font. +

Header file: +

/****************************************************************************
+** $Id: qt/fontdisplayer.h   3.3.8   edited Jan 11 14:37 $
+**
+** Copyright (C) 1992-2007 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.
+**
+*****************************************************************************/
+
+#ifndef FontDisplayer_H
+#define FontDisplayer_H
+
+#include <qframe.h>
+#include <qmainwindow.h>
+
+class QSlider;
+
+class FontRowTable : public QFrame {
+    Q_OBJECT
+public:
+    FontRowTable( QWidget* parent=0, const char* name=0 );
+
+    QSize sizeHint() const;
+
+signals:
+    void fontInformation(const QString&);
+
+public slots:
+    void setRow(int);
+    void chooseFont();
+
+
+protected:
+    QSize cellSize() const;
+    void paintEvent( QPaintEvent* );
+private:
+    QFont tablefont;
+    int row;
+};
+
+class FontDisplayer : public QMainWindow {
+    Q_OBJECT
+public:
+    FontDisplayer( QWidget* parent=0, const char* name=0 );
+};
+
+#endif
+

+ +

Implementation: +

/****************************************************************************
+** $Id: qt/fontdisplayer.cpp   3.3.8   edited Jan 11 14:37 $
+**
+** Copyright (C) 1992-2007 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);
+}
+

+ +

Main: +

/****************************************************************************
+** $Id: qt/qfd.cpp   3.3.8   edited Jan 11 14:37 $
+**
+** Copyright (C) 1992-2007 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 <qpainter.h>
+#include <qstatusbar.h>
+
+
+
+int main(int argc, char** argv)
+{
+    QApplication app(argc,argv);
+
+    FontDisplayer m;
+    QSize sh = m.centralWidget()->sizeHint();
+    m.resize(sh.width(),
+             sh.height()+3*m.statusBar()->height());
+    app.setMainWidget(&m);
+    m.setCaption("Qt Example - QFD");
+    m.show();
+
+    return app.exec();
+}
+

+ +