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Diffstat (limited to 'kdeprint/tests/drawdemo.cpp')
| -rw-r--r-- | kdeprint/tests/drawdemo.cpp | 253 |
1 files changed, 253 insertions, 0 deletions
diff --git a/kdeprint/tests/drawdemo.cpp b/kdeprint/tests/drawdemo.cpp new file mode 100644 index 000000000..f399d7d6d --- /dev/null +++ b/kdeprint/tests/drawdemo.cpp @@ -0,0 +1,253 @@ +/**************************************************************************** +** $Id$ +** +** Copyright (C) 1992-2000 Trolltech AS. 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 <qwidget.h> +#include <qpainter.h> +#include <kprinter.h> +#include <qpushbutton.h> +#include <qradiobutton.h> +#include <qbuttongroup.h> +#include <kapplication.h> +#include <qapplication.h> +#include <math.h> + + +// +// This function draws a color wheel. +// The coordinate system x=(0..500), y=(0..500) spans the paint device. +// + +void drawColorWheel( QPainter *p ) +{ + QFont f( "times", 18, QFont::Bold ); + p->setFont( f ); + p->setPen( Qt::black ); + p->setWindow( 0, 0, 500, 500 ); // defines coordinate system + + for ( int i=0; i<36; i++ ) { // draws 36 rotated rectangles + + QWMatrix 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 + + QColor 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 + + QString 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( QPainter *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] ) { + QFont font( fonts[f], sizes[s] ); + p->setFont( font ); + QFontMetrics 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( QPainter *p ) +{ + QBrush b1( Qt::blue ); + QBrush b2( Qt::green, Qt::Dense6Pattern ); // green 12% fill + QBrush b3( Qt::NoBrush ); // void brush + QBrush b4( Qt::CrossPattern ); // black cross pattern + + p->setPen( Qt::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)(QPainter*); + +struct DrawThing { + draw_func f; + const char *name; +}; + +// +// You can add your draw function here. +// Leave the zeros at the end of the array! +// + +DrawThing ourDrawFunctions[] = { + { drawColorWheel, "Draw color wheel" }, + { drawFonts, "Draw fonts" }, + { drawShapes, "Draw shapes" }, + { 0, 0 } }; + + +#include "drawdemo.h" + +// +// Construct the DrawView with buttons. +// + +DrawView::DrawView() +{ + setCaption( "Qt Draw Demo Application" ); + setBackgroundColor( white ); + + // Create a button group to contain all buttons + bgroup = new QButtonGroup( this ); + bgroup->resize( 200, 200 ); + connect( bgroup, SIGNAL(clicked(int)), SLOT(updateIt(int)) ); + + // Calculate the size for the radio buttons + int maxwidth = 80; + int i; + const char *n; + QFontMetrics fm = bgroup->fontMetrics(); + for ( i=0; (n=ourDrawFunctions[i].name) != 0; i++ ) { + int w = fm.width( n ); + maxwidth = QMAX(w,maxwidth); + } + maxwidth = maxwidth + 20; // add 20 pixels + + for ( i=0; (n=ourDrawFunctions[i].name) != 0; i++ ) { + QRadioButton *rb = new QRadioButton( n, bgroup ); + rb->setGeometry( 10, i*30+10, maxwidth, 30 ); + if ( i == 0 ) + rb->setChecked( true ); + } + + drawindex = 0; // draw first thing + maxindex = i; + + maxwidth += 40; // now size of bgroup + + printer = new KPrinter; + + // Create and setup the print button + print = new QPushButton( "Print...", bgroup ); + print->resize( 80, 30 ); + print->move( maxwidth/2 - print->width()/2, maxindex*30+20 ); + connect( print, SIGNAL(clicked()), SLOT(printIt()) ); + + bgroup->resize( maxwidth, print->y()+print->height()+10 ); + + 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( QPainter *p ) +{ + (*ourDrawFunctions[drawindex].f)(p); +} + +// +// Called when the print button is clicked. +// + +void DrawView::printIt() +{ +#ifndef QT_NO_PRINTER + if ( printer->setup( this ) ) { + QPainter paint( printer ); + drawIt( &paint ); + } +#endif +} + +// +// Called when the widget needs to be updated. +// + +void DrawView::paintEvent( QPaintEvent * ) +{ + QPainter 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( QResizeEvent * ) +{ + bgroup->move( width()-bgroup->width(), 0 ); +} + + +// +// Create and display our widget. +// + +#include "drawdemo.moc" + +int main( int argc, char **argv ) +{ + KApplication app( argc, argv, "drawdemo" ); + DrawView draw; + app.setMainWidget( &draw ); + draw.show(); + return app.exec(); +} |