Add Qt3 development HEAD version

6 files changed, 237 insertions, 0 deletions

diff --git a/tutorial/t8/cannon.cpp b/tutorial/t8/cannon.cpp
new file mode 100644
index 0000000..fd9d203
--- /dev/null
+++ b/tutorial/t8/cannon.cpp
@@ -0,0 +1,45 @@
+/****************************************************************
+**
+** Implementation CannonField class, Qt tutorial 8
+**
+****************************************************************/
+
+#include "cannon.h"
+#include <qpainter.h>
+
+
+CannonField::CannonField( QWidget *parent, const char *name )
+        : QWidget( parent, name )
+{
+    ang = 45;
+    setPalette( QPalette( QColor( 250, 250, 200) ) );
+}
+
+
+void CannonField::setAngle( int degrees )
+{
+    if ( degrees < 5 )
+	degrees = 5;
+    if ( degrees > 70 )
+	degrees = 70;
+    if ( ang == degrees )
+	return;
+    ang = degrees;
+    repaint();
+    emit angleChanged( ang );
+}
+
+
+void CannonField::paintEvent( QPaintEvent * )
+{
+    QString s = "Angle = " + QString::number( ang );
+    QPainter p( this );
+    p.drawText( 200, 200, s );
+}
+
+
+QSizePolicy CannonField::sizePolicy() const
+{
+    return QSizePolicy( QSizePolicy::Expanding, QSizePolicy::Expanding );
+}
+
diff --git a/tutorial/t8/cannon.h b/tutorial/t8/cannon.h
new file mode 100644
index 0000000..a0928cd
--- /dev/null
+++ b/tutorial/t8/cannon.h
@@ -0,0 +1,36 @@
+/****************************************************************
+**
+** Definition of CannonField class, Qt tutorial 8
+**
+****************************************************************/
+
+#ifndef CANNON_H
+#define CANNON_H
+
+#include <qwidget.h>
+
+
+class CannonField : public QWidget
+{
+    Q_OBJECT
+public:
+    CannonField( QWidget *parent=0, const char *name=0 );
+
+    int angle() const { return ang; }
+    QSizePolicy sizePolicy() const;
+
+public slots:
+    void setAngle( int degrees );
+
+signals:
+    void angleChanged( int );
+
+protected:
+    void paintEvent( QPaintEvent * );
+
+private:
+    int ang;
+};
+
+
+#endif // CANNON_H
diff --git a/tutorial/t8/lcdrange.cpp b/tutorial/t8/lcdrange.cpp
new file mode 100644
index 0000000..b62cfbb
--- /dev/null
+++ b/tutorial/t8/lcdrange.cpp
@@ -0,0 +1,47 @@
+/****************************************************************
+**
+** Implementation of LCDRange class, Qt tutorial 8
+**
+****************************************************************/
+
+#include "lcdrange.h"
+
+#include <qslider.h>
+#include <qlcdnumber.h>
+
+LCDRange::LCDRange( QWidget *parent, const char *name )
+        : QVBox( parent, name )
+{
+    QLCDNumber *lcd  = new QLCDNumber( 2, this, "lcd"  );
+    slider = new QSlider( Horizontal, this, "slider" );
+    slider->setRange( 0, 99 );
+    slider->setValue( 0 );
+    connect( slider, SIGNAL(valueChanged(int)),
+	     lcd, SLOT(display(int)) );
+    connect( slider, SIGNAL(valueChanged(int)),
+	     SIGNAL(valueChanged(int)) );
+
+    setFocusProxy( slider );
+}
+
+int LCDRange::value() const
+{
+    return slider->value();
+}
+
+void LCDRange::setValue( int value )
+{
+    slider->setValue( value );
+}
+
+void LCDRange::setRange( int minVal, int maxVal )
+{
+    if ( minVal < 0 || maxVal > 99 || minVal > maxVal ) {
+      qWarning( "LCDRange::setRange(%d,%d)\n"
+	       "\tRange must be 0..99\n"
+	       "\tand minVal must not be greater than maxVal",
+	       minVal, maxVal );
+      return;
+    }
+    slider->setRange( minVal, maxVal );
+}
diff --git a/tutorial/t8/lcdrange.h b/tutorial/t8/lcdrange.h
new file mode 100644
index 0000000..5fa2d21
--- /dev/null
+++ b/tutorial/t8/lcdrange.h
@@ -0,0 +1,35 @@
+/****************************************************************
+**
+** Definition of LCDRange class, Qt tutorial 8
+**
+****************************************************************/
+
+#ifndef LCDRANGE_H
+#define LCDRANGE_H
+
+#include <qvbox.h>
+
+class QSlider;
+
+
+class LCDRange : public QVBox
+{
+    Q_OBJECT
+public:
+    LCDRange( QWidget *parent=0, const char *name=0 );
+
+    int value() const;
+
+public slots:
+    void setValue( int );
+    void setRange( int minVal, int maxVal );
+
+signals:
+    void valueChanged( int );
+
+private:
+    QSlider  *slider;
+};
+
+
+#endif // LCDRANGE_H
diff --git a/tutorial/t8/main.cpp b/tutorial/t8/main.cpp
new file mode 100644
index 0000000..5983735
--- /dev/null
+++ b/tutorial/t8/main.cpp
@@ -0,0 +1,65 @@
+/****************************************************************
+**
+** Qt tutorial 8
+**
+****************************************************************/
+
+#include <qapplication.h>
+#include <qpushbutton.h>
+#include <qlcdnumber.h>
+#include <qfont.h>
+#include <qlayout.h>
+
+#include "lcdrange.h"
+#include "cannon.h"
+
+
+class MyWidget: public QWidget
+{
+public:
+    MyWidget( QWidget *parent=0, const char *name=0 );
+};
+
+
+MyWidget::MyWidget( QWidget *parent, const char *name )
+        : QWidget( parent, name )
+{
+    QPushButton *quit = new QPushButton( "Quit", this, "quit" );
+    quit->setFont( QFont( "Times", 18, QFont::Bold ) );
+
+    connect( quit, SIGNAL(clicked()), qApp, SLOT(quit()) );
+
+    LCDRange *angle = new LCDRange( this, "angle" );
+    angle->setRange( 5, 70 );
+
+    CannonField *cannonField 
+	= new CannonField( this, "cannonField" );
+
+    connect( angle, SIGNAL(valueChanged(int)),
+	     cannonField, SLOT(setAngle(int)) );
+    connect( cannonField, SIGNAL(angleChanged(int)),
+	     angle, SLOT(setValue(int)) );
+
+    QGridLayout *grid = new QGridLayout( this, 2, 2, 10 );
+    //2x2, 10 pixel border
+
+    grid->addWidget( quit, 0, 0 );
+    grid->addWidget( angle, 1, 0, Qt::AlignTop );
+    grid->addWidget( cannonField, 1, 1 );
+    grid->setColStretch( 1, 10 );
+
+    angle->setValue( 60 );
+    angle->setFocus();
+}
+
+
+int main( int argc, char **argv )
+{
+    QApplication a( argc, argv );
+
+    MyWidget w;
+    w.setGeometry( 100, 100, 500, 355 );
+    a.setMainWidget( &w );
+    w.show();
+    return a.exec();
+}
diff --git a/tutorial/t8/t8.pro b/tutorial/t8/t8.pro
new file mode 100644
index 0000000..8eca4fa
--- /dev/null
+++ b/tutorial/t8/t8.pro
@@ -0,0 +1,9 @@
+TEMPLATE	= app
+CONFIG		+= qt warn_on release
+HEADERS		= cannon.h \
+		  lcdrange.h
+SOURCES		= cannon.cpp \
+		  lcdrange.cpp \
+		  main.cpp
+TARGET		= t8
+REQUIRES=large-config