#include "cairo-test.h"
#ifndef ARRAY_LENGTH
#define ARRAY_LENGTH(A) (int) (sizeof (A) / sizeof ((A)[0]))
#endif
#define PAD 5
static cairo_test_draw_function_t draw;
static const cairo_test_t test = {
"degenerate-dash",
"Tests the behaviour of dashed segments that end on a off-on transition",
210 + 2*PAD, 210 + 2*PAD,
draw
};
static cairo_test_status_t
draw (cairo_t *cr, int width, int height)
{
const double dashes[] = { 25, 25 };
cairo_line_join_t joins[] = {
CAIRO_LINE_JOIN_ROUND,
CAIRO_LINE_JOIN_MITER,
CAIRO_LINE_JOIN_BEVEL
};
cairo_line_cap_t caps[] = {
CAIRO_LINE_CAP_ROUND,
CAIRO_LINE_CAP_SQUARE,
CAIRO_LINE_CAP_BUTT,
};
int i, j;
cairo_set_source_rgb (cr, 1,1,1);
cairo_paint (cr);
cairo_set_source_rgb (cr, 1, 0, 0);
cairo_set_dash (cr, dashes, 2, 0.);
cairo_set_line_width (cr, 10);
cairo_translate (cr, 5 + PAD, 5 + PAD);
for (i = 0; i < ARRAY_LENGTH (joins); i++) {
cairo_set_line_join (cr, joins[i]);
cairo_save (cr);
for (j = 0; j < ARRAY_LENGTH (caps); j++) {
cairo_set_line_cap (cr, caps[j]);
cairo_move_to (cr, 0, 0);
cairo_line_to (cr, 50, 0);
cairo_line_to (cr, 50,50);
cairo_stroke (cr);
cairo_translate (cr, 75, 0);
}
cairo_restore (cr);
cairo_translate (cr, 0, 75);
}
return CAIRO_TEST_SUCCESS;
}
int
main (void)
{
return cairo_test (&test);
}