clip-fill-rule-pixel-aligned.c [plain text]
#include "cairo-test.h"
#define PAD 1
#define SIZE 5
static void
pixel_aligned_path (cairo_t *cr)
{
cairo_save (cr);
{
cairo_scale (cr, SIZE, SIZE);
cairo_move_to (cr, 1, 0);
cairo_rel_line_to (cr, 1, 0);
cairo_rel_line_to (cr, 0, 3);
cairo_rel_line_to (cr, 1, 0);
cairo_rel_line_to (cr, 0, -1);
cairo_rel_line_to (cr, -3, 0);
cairo_rel_line_to (cr, 0, -1);
cairo_rel_line_to (cr, 4, 0);
cairo_rel_line_to (cr, 0, 3);
cairo_rel_line_to (cr, -3, 0);
cairo_rel_line_to (cr, 0, -4);
cairo_close_path (cr);
}
cairo_restore (cr);
}
static cairo_test_status_t
draw (cairo_t *cr, int width, int height)
{
cairo_set_source_rgb (cr, 1, 0, 0);
cairo_translate (cr, PAD, PAD);
cairo_save (cr);
{
pixel_aligned_path (cr);
cairo_set_fill_rule (cr, CAIRO_FILL_RULE_EVEN_ODD);
cairo_clip (cr);
cairo_paint (cr);
}
cairo_restore (cr);
cairo_translate (cr, SIZE*4 + PAD, 0);
cairo_save (cr);
{
pixel_aligned_path (cr);
cairo_set_fill_rule (cr, CAIRO_FILL_RULE_WINDING);
cairo_clip (cr);
cairo_paint (cr);
}
cairo_restore (cr);
return CAIRO_TEST_SUCCESS;
}
CAIRO_TEST (clip_fill_rule_pixel_aligned,
"Tests interaction of clipping and cairo_set_fill_rule with a pixel-aligned path",
"clip",
NULL,
PAD + (SIZE*4) + PAD + (SIZE*4) + PAD,
PAD + (SIZE*4) + PAD,
NULL, draw)