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#include <cairo.h>
#include <tqpainter.h>
#include <tqapplication.h>
#include "tqtcairopainter.h"
// TQt3 test image only
#include <tqpixmap.h>
void drawColorWheel(TQPainter *p, double scale)
{
TQFont f( "times", 18, TQFont::Bold );
p->setFont( f );
p->setPen(TQt::black);
p->setWindow( 0, 0, 500*scale, 500*scale ); // defines coordinate system
for ( int i=0; i<36; i++ ) { // draws 36 rotated rectangles
TQWMatrix matrix;
matrix.translate( 250.0F*scale, 250.0F*scale ); // move to center
matrix.shear( 0.0F*scale, 0.3F*scale ); // 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*scale, -10*scale, 80*scale, 10*scale ); // draw the rectangle
TQString n;
n.sprintf( "H=%d", i*10 );
p->drawText( (80+70+5)*scale, 0, n ); // draw the hue number
}
}
void runTests(TQPaintDevice* pd) {
TQPainter p(pd);
// Rectangle tests
{
p.setPen(TQPen(TQt::red, 1));
p.drawRect(5, 5, 50, 50);
TQBrush brush( TQt::yellow, TQBrush::DiagCrossPattern ); // yellow pattern
p.setBrush( brush ); // set the yellow brush
p.setPen( TQt::NoPen ); // do not draw outline
p.drawRect( 0,0, 25,25 ); // draw filled rectangle
TQBrush brush2( TQt::green, TQBrush::SolidPattern ); // green pattern
p.setBrush( brush2 ); // set the yellow brush
p.setPen( TQt::NoPen ); // do not draw outline
p.drawRect( 40,30, 200,100 ); // draw filled rectangle
p.setBrush( TQt::NoBrush ); // do not fill
p.setPen( TQt::blue ); // set blue pen, 0 pixel width
p.drawRect( 10,10, 30,20 ); // draw rectangle outline
TQBrush brush3( TQColor(255,128,0), TQBrush::SolidPattern ); // green pattern
p.setBrush( brush3 ); // set the yellow brush
p.setPen( TQColor(255,0,255) ); // draw outline
p.drawRect( 50,40, 180,80 ); // draw filled rectangle
}
// Line tests
{
p.setPen( TQt::blue ); // set blue pen, 0 pixel width
p.drawLine(140,140, 160,160);
}
// Point tests
{
p.setPen( TQt::green ); // set green pen, 0 pixel width
p.drawPoint(135,135);
}
// Polyline tests
{
TQPointArray a;
int x1 = 250;
int y1 = 10;
a.setPoints( 11, x1+0, y1+85, x1+75, y1+75, x1+100, y1+10, x1+125, y1+75, x1+200, y1+85, x1+150, y1+125, x1+160, y1+190, x1+100, y1+150, x1+40, y1+190, x1+50, y1+125, x1+0, y1+85 );
p.setPen(TQt::red);
p.drawPolyline(a);
}
// Polyfill tests
{
TQPointArray a;
int x1 = 250;
int y1 = 200;
a.setPoints( 11, x1+0, y1+85, x1+75, y1+75, x1+100, y1+10, x1+125, y1+75, x1+200, y1+85, x1+150, y1+125, x1+160, y1+190, x1+100, y1+150, x1+40, y1+190, x1+50, y1+125, x1+0, y1+85 );
p.setPen(TQt::blue);
p.setBrush(TQt::green);
p.drawPolygon(a);
}
// Rounded rectangle tests
{
p.setBrush(TQt::green);
p.setPen(TQPen(TQt::red, 1));
p.drawRoundRect(10, 150, 50, 50);
p.setBrush(TQBrush());
p.setPen(TQPen(TQt::blue, 1));
p.drawRoundRect(80, 150, 50, 50);
}
// Ellipse tests
{
p.setBrush(TQt::green);
p.setPen(TQPen(TQt::red, 1));
p.drawEllipse(10, 220, 50, 50);
p.setBrush(TQBrush());
p.setPen(TQPen(TQt::blue, 1));
p.drawEllipse(80, 220, 50, 50);
}
// Arc tests
{
p.setBrush(TQBrush());
p.setPen(TQPen(TQt::yellow, 1));
p.drawArc(10,10, 70,100, 100*16, 160*16); // draws a "(" arc
}
// Pie tests
{
p.setBrush(TQBrush());
p.setPen(TQPen(TQt::red, 1));
p.drawPie(250, 400, 200, 100, 45*16, 90*16);
p.setBrush(TQt::green);
p.setPen(TQPen(TQt::blue, 1));
p.drawPie(250, 450, 200, 100, 45*16, 90*16);
}
// Chord tests
{
p.setBrush(TQBrush());
p.setPen(TQPen(TQt::red, 1));
p.drawChord(100, 400, 200, 100, 45*16, 90*16);
p.setBrush(TQt::green);
p.setPen(TQPen(TQt::blue, 1));
p.drawChord(100, 450, 200, 100, 45*16, 90*16);
}
// Line segment tests
{
TQPointArray a;
int x1 = 10;
int y1 = 400;
a.setPoints( 4, x1+0, y1+85, x1+75, y1+75, x1+0, y1+95, x1+75, y1+85 );
p.setPen(TQColor(255,128,0));
p.drawLineSegments(a);
}
// Bezier curve tests
{
TQPointArray a;
int x1 = 100;
int y1 = 400;
a.setPoints( 4, x1+0, y1+85, x1+75, y1+75, x1+0, y1+95, x1+75, y1+85 );
p.setPen(TQColor(0,128,255));
p.drawCubicBezier(a);
}
// Pixmap tests
{
TQPixmap pixmap("open.png");
p.drawPixmap(200, 10, pixmap, 0, 0, -1, -1);
}
// Font tests
{
p.setPen(TQColor(0,128,255));
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, "TQt3 renders via Cairo!" );
y += fm.descent();
s++;
if (y > 500) {
break;
}
}
f++;
if (y > 500) {
break;
}
}
p.setPen(TQColor(255,128,0));
p.drawText( TQRect(250, 250, 250, 250), 0, TQString("TQt3 renders via Cairo!") );
}
// Clipping tests
{
p.setBrush(TQBrush(TQt::green));
p.setPen(TQPen(TQt::blue, 1));
TQRect boundary(400, 10, 100, 100);
TQRegion rectRegion(425,35,50,50);
p.setClipRegion(rectRegion);
p.fillRect(boundary, TQBrush(TQt::green));
}
//drawColorWheel(&p, 0.5);
//drawColorWheel(&p, 1.0);
p.end();
}
int
main (int argc, char *argv[])
{
cairo_surface_t *surface;
cairo_t *cr;
surface = cairo_image_surface_create (CAIRO_FORMAT_ARGB32, 500, 500);
// cr = cairo_create (surface);
// /* Examples are in 1.0 x 1.0 coordinate space */
// cairo_scale (cr, 120, 120);
//
// /* Drawing code goes here */
// cairo_set_line_width (cr, 0.1);
// cairo_set_source_rgb (cr, 0, 0, 0);
// cairo_rectangle (cr, 0.25, 0.25, 0.5, 0.5);
// cairo_stroke (cr);
// Initialize TQApplication required data structures
new TQApplication(argc, argv, TRUE);
TQt3CairoPaintDevice pd(surface);
runTests(&pd);
/* Write output and clean up */
cairo_surface_write_to_png (surface, "stroke.png");
// cairo_destroy (cr);
cairo_surface_destroy (surface);
// Render a TQt3 native test image
TQPixmap pm(500, 500);
pm.fill(TQt::black);
runTests(&pm);
pm.save("tqt3.png", "PNG");
return 0;
}
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