From d796c9dd933ab96ec83b9a634feedd5d32e1ba3f Mon Sep 17 00:00:00 2001 From: Timothy Pearson Date: Tue, 8 Nov 2011 12:31:36 -0600 Subject: Test conversion to TQt3 from Qt3 8c6fc1f8e35fd264dd01c582ca5e7549b32ab731 --- doc/html/drawdemo-example.html | 364 +++++++++++++++++++++++++++++++++++++++++ 1 file changed, 364 insertions(+) create mode 100644 doc/html/drawdemo-example.html (limited to 'doc/html/drawdemo-example.html') diff --git a/doc/html/drawdemo-example.html b/doc/html/drawdemo-example.html new file mode 100644 index 000000000..d6dabc878 --- /dev/null +++ b/doc/html/drawdemo-example.html @@ -0,0 +1,364 @@ + + + + + +Draw Demo + + + + + + + +
Draw Demo

+ + +
+This example demonstrates several drawing functions and printer output. +You can easily add you own drawing functions. +
Implementation: +
/****************************************************************************
+** $Id: qt/drawdemo.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 TQt.  This example
+** program may be used, distributed and modified without limitation.
+**
+*****************************************************************************/
+
+#include <qwidget.h>
+#include <qpainter.h>
+#include <qprinter.h>
+#include <qpushbutton.h>
+#include <qradiobutton.h>
+#include <qbuttongroup.h>
+#include <qapplication.h>
+#include <math.h>
+
+//
+// First we define the functionality our demo should present
+// to the user. You might add different demo-modes if you wish so.
+//
+
+//
+// This function draws a color wheel.
+// The coordinate system x=(0..500), y=(0..500) spans the paint device.
+//
+
+void drawColorWheel( TQPainter *p )
+{
+    TQFont f( "times", 18, TQFont::Bold );
+    p->setFont( f );
+    p->setPen( TQt::black );
+    p->setWindow( 0, 0, 500, 500 );             // defines coordinate system
+
+    for ( int i=0; i<36; i++ ) {                // draws 36 rotated rectangles
+
+        TQWMatrix matrix;
+        matrix.translate( 250.0F, 250.0F );     // move to center
+        matrix.shear( 0.0F, 0.3F );             // twist it
+        matrix.rotate( (float)i*10 );           // rotate 0,10,20,.. degrees
+        p->setWorldMatrix( matrix );            // use this world matrix
+
+        TQColor c;
+        c.setHsv( i*10, 255, 255 );             // rainbow effect
+        p->setBrush( c );                       // solid fill with color c
+        p->drawRect( 70, -10, 80, 10 );         // draw the rectangle
+
+        TQString n;
+        n.sprintf( "H=%d", i*10 );
+        p->drawText( 80+70+5, 0, n );           // draw the hue number
+    }
+}
+
+
+//
+// This function draws a few lines of text using different fonts.
+//
+
+void drawFonts( TQPainter *p )
+{
+    static const char *fonts[] = { "Helvetica", "Courier", "Times", 0 };
+    static int   sizes[] = { 10, 12, 18, 24, 36, 0 };
+    int f = 0;
+    int y = 0;
+    while ( fonts[f] ) {
+        int s = 0;
+        while ( sizes[s] ) {
+            TQFont font( fonts[f], sizes[s] );
+            p->setFont( font );
+            TQFontMetrics fm = p->fontMetrics();
+            y += fm.ascent();
+            p->drawText( 10, y, "Quartz Glyph Job Vex'd Cwm Finks" );
+            y += fm.descent();
+            s++;
+        }
+        f++;
+    }
+}
+
+
+//
+// This function draws some shapes
+//
+
+void drawShapes( TQPainter *p )
+{
+    TQBrush b1( TQt::blue );
+    TQBrush b2( TQt::green, TQt::Dense6Pattern );          // green 12% fill
+    TQBrush b3( TQt::NoBrush );                           // void brush
+    TQBrush b4( TQt::CrossPattern );                      // black cross pattern
+
+    p->setPen( TQt::red );
+    p->setBrush( b1 );
+    p->drawRect( 10, 10, 200, 100 );
+    p->setBrush( b2 );
+    p->drawRoundRect( 10, 150, 200, 100, 20, 20 );
+    p->setBrush( b3 );
+    p->drawEllipse( 250, 10, 200, 100 );
+    p->setBrush( b4 );
+    p->drawPie( 250, 150, 200, 100, 45*16, 90*16 );
+}
+
+
+typedef void (*draw_func)(TQPainter*);
+
+struct DrawThing {
+    draw_func    f;
+    const char  *name;
+};
+
+//
+// All previously implemented functions are collected
+// in the following "table".
+// If you implement different functionality, your new draw
+// function must be assigned here with a function pointer and
+// description.
+// Leave the zeros at the end, they will be used
+// as markers referring to the end of the array.
+//
+
+DrawThing ourDrawFunctions[] = {
+// name of the function, title presented to the user
+    { drawColorWheel,   "Draw color wheel" },
+    { drawFonts,        "Draw fonts" },
+    { drawShapes,       "Draw shapes" },
+    { 0,                0 } };
+
+
+
+class DrawView : public TQWidget
+{
+    Q_OBJECT
+public:
+    DrawView();
+    ~DrawView();
+public slots:
+    void   updateIt( int );
+    void   printIt();
+protected:
+    void   drawIt( TQPainter * );
+    void   paintEvent( TQPaintEvent * );
+    void   resizeEvent( TQResizeEvent * );
+private:
+    TQPrinter     *printer;
+    TQButtonGroup *bgroup;
+    TQPushButton  *print;
+    int           drawindex;
+    int           maxindex;
+};
+
+
+//
+// Construct the DrawView with buttons.
+//
+
+DrawView::DrawView()
+{
+    setCaption( "TQt Draw Demo Application" );
+    setBackgroundMode(PaletteBase);
+
+    // Create a button group to contain all buttons
+    bgroup = new TQButtonGroup( this );
+    bgroup->resize( 200, 200 );
+    connect( bgroup, SIGNAL(clicked(int)), SLOT(updateIt(int)) );
+
+    // Calculate the size for the radio buttons
+    int maxwidth = 80;
+    int maxheight = 10;
+    int i;
+    const char *n;
+    TQFontMetrics fm = bgroup->fontMetrics();
+
+    // Find out the longest function description.
+    // Here we make use of the last "0,0"-entry in the
+    // ourDrawFunctions-array.
+    for ( i=0; (n=ourDrawFunctions[i].name) != 0; i++ ) {
+        int w = fm.width( n );
+        maxwidth = TQMAX(w,maxwidth); // TQMAX is a macro defined in qglobal.h
+                                     // and returns the biggest of to values.
+        // Due to its macro nature one should use it with care and with
+        // constant parameters only.
+    }
+
+    maxwidth = maxwidth + 30;                   // allow 30 pixels for radiobuttons
+
+    for ( i=0; (n=ourDrawFunctions[i].name) != 0; i++ ) {
+        TQRadioButton *rb = new TQRadioButton( n, bgroup );
+        rb->setGeometry( 10, i*30+10, maxwidth, 30 );
+
+        maxheight += 30;
+
+        if ( i == 0 )
+            rb->setChecked( TRUE );
+    }
+
+    maxheight += 10;                            // maxheight is now 10 pixels upper margin
+                                                // plus number_of_drawfunctions * 30
+                                                // plus 10 pixels lower margin
+
+    drawindex = 0;                              // draw first thing
+    maxindex  = i;
+
+    maxwidth += 20;                             // add some margin, this results in the
+                                                // final width of bgroup
+
+    bgroup->resize( maxwidth, maxheight );      // resize bgroup to its final size
+                                                // when no printersupport is provided
+
+
+// If -- at compile time -- printer support will be disabled,
+// we won't set up printing functionality.
+
+#ifndef QT_NO_PRINTER
+
+    printer = new TQPrinter;
+
+    // Create and setup the print button
+    print = new TQPushButton( "Print...", bgroup );
+    print->resize( 80, 30 );
+    print->move( maxwidth/2 - print->width()/2, maxindex*30+20 );
+    connect( print, SIGNAL(clicked()), SLOT(printIt()) );
+
+    // Resize bgroup to its final size when printersupport is given.
+    bgroup->resize( maxwidth, print->y()+print->height()+10 );
+
+#endif
+
+    resize( 640,300 );
+}
+
+//
+// Clean up.
+//
+DrawView::~DrawView()
+{
+#ifndef QT_NO_PRINTER
+    delete printer;
+#endif
+}
+
+//
+// Called when a radio button is clicked.
+//
+
+void DrawView::updateIt( int index )
+{
+    if ( index < maxindex ) {
+        drawindex = index;
+        update();
+    }
+}
+
+//
+// Calls the drawing function as specified by the radio buttons.
+//
+
+void DrawView::drawIt( TQPainter *p )
+{
+    (*ourDrawFunctions[drawindex].f)(p);
+}
+
+//
+// Called when the print button is clicked.
+//
+
+void DrawView::printIt()
+{
+    if ( printer->setup( this ) ) {
+        TQPainter paint;
+        if( !paint.begin( printer ) )
+            return;
+        drawIt( &paint );
+    }
+}
+
+//
+// Called when the widget needs to be updated.
+//
+
+void DrawView::paintEvent( TQPaintEvent * )
+{
+    TQPainter paint( this );
+    drawIt( &paint );
+}
+
+//
+// Called when the widget has been resized.
+// Moves the button group to the upper right corner
+// of the widget.
+
+void DrawView::resizeEvent( TQResizeEvent * )
+{
+    bgroup->move( width()-bgroup->width(), 0 );
+}
+
+
+//
+// Create and display our widget.
+//
+
+#include "drawdemo.moc"
+
+int main( int argc, char **argv )
+{
+    TQApplication app( argc, argv );
+    DrawView   draw;
+    app.setMainWidget( &draw );
+    draw.setCaption("TQt Example - Drawdemo");
+    draw.show();
+    return app.exec();
+}
+
+ +