static cairo_bool_t
font_extents_equal (const cairo_font_extents_t *A,
const cairo_font_extents_t *B)
{
return
CAIRO_TEST_DOUBLE_EQUALS (A->ascent, B->ascent) &&
CAIRO_TEST_DOUBLE_EQUALS (A->descent, B->descent) &&
CAIRO_TEST_DOUBLE_EQUALS (A->height, B->height) &&
CAIRO_TEST_DOUBLE_EQUALS (A->max_x_advance, B->max_x_advance) &&
CAIRO_TEST_DOUBLE_EQUALS (A->max_y_advance, B->max_y_advance);
}
static int
double_buf_equal (const cairo_test_context_t *ctx, double *a, double *b, int nc)
{
int i;
for (i = 0; i < nc; i++) {
if (!CAIRO_TEST_DOUBLE_EQUALS(a[i],b[i])) {
cairo_test_log (ctx, "Error: doubles not equal: %g, %g\n",
a[i], b[i]);
return 0;
}
}
return 1;
}
static cairo_test_status_t
draw (cairo_t *cr, int width, int height)
{
const cairo_test_context_t *ctx = cairo_test_get_context (cr);
cairo_status_t status;
cairo_pattern_t *pat;
/* Test pattern_get_rgba */
{
double r, g, b, a;
pat = cairo_pattern_create_rgba (0.2, 0.3, 0.4, 0.5);
status = cairo_pattern_get_rgba (pat, &r, &g, &b, &a);
CHECK_SUCCESS;
if (!CAIRO_TEST_DOUBLE_EQUALS(r,0.2) ||
!CAIRO_TEST_DOUBLE_EQUALS(g,0.3) ||
!CAIRO_TEST_DOUBLE_EQUALS(b,0.4) ||
!CAIRO_TEST_DOUBLE_EQUALS(a,0.5)) {
cairo_test_log (ctx, "Error: cairo_pattern_get_rgba returned unexepcted results: %g, %g, %g, %g\n",
r, g, b, a);
return CAIRO_TEST_FAILURE;
}
cairo_pattern_destroy (pat);
}
/* Test pattern_get_surface */
{
cairo_surface_t *surf;
pat = cairo_pattern_create_for_surface (cairo_get_target (cr));
status = cairo_pattern_get_surface (pat, &surf);
CHECK_SUCCESS;
if (surf != cairo_get_target (cr)) {
cairo_test_log (ctx, "Error: cairo_pattern_get_resurface returned wrong surface\n");
return CAIRO_TEST_FAILURE;
}
cairo_pattern_destroy (pat);
}
/* Test get_color_stops & linear_get_points */
{
int i;
double x0, y0, x1, y1;
double expected_values[15] = { 0.0, 0.2, 0.4, 0.2, 1.0,
0.5, 0.4, 0.5, 0.2, 0.5,
1.0, 0.2, 0.4, 0.5, 0.2
};
double new_buf[15];
pat = cairo_pattern_create_linear (1.0, 2.0, 3.0, 4.0);
for (i = 0; i < 3; i++) {
cairo_pattern_add_color_stop_rgba (pat,
expected_values[i*5+0],
expected_values[i*5+1],
expected_values[i*5+2],
expected_values[i*5+3],
expected_values[i*5+4]);
}
status = cairo_pattern_get_linear_points (pat, &x0, &y0, &x1, &y1);
CHECK_SUCCESS;
if (!CAIRO_TEST_DOUBLE_EQUALS(x0,1.0) ||
!CAIRO_TEST_DOUBLE_EQUALS(y0,2.0) ||
!CAIRO_TEST_DOUBLE_EQUALS(x1,3.0) ||
!CAIRO_TEST_DOUBLE_EQUALS(y1,4.0))
return CAIRO_TEST_FAILURE;
status = cairo_pattern_get_color_stop_count (pat, &i);
CHECK_SUCCESS;
if (i != 3)
return CAIRO_TEST_FAILURE;
for (i = 0; i < 3; i++) {
status = cairo_pattern_get_color_stop_rgba (pat, i,
&new_buf[i*5+0],
&new_buf[i*5+1],
&new_buf[i*5+2],
&new_buf[i*5+3],
&new_buf[i*5+4]);
CHECK_SUCCESS;
}
status = cairo_pattern_get_color_stop_rgba (pat, 5, NULL, NULL, NULL, NULL, NULL);
if (status != CAIRO_STATUS_INVALID_INDEX)
return CAIRO_TEST_FAILURE;
if (!double_buf_equal (ctx, new_buf, expected_values, sizeof(expected_values)/sizeof(double)) != 0)
return CAIRO_TEST_FAILURE;
cairo_pattern_destroy (pat);
}
/* Test radial_get_circles */
{
double a, b, c, d, e, f;
pat = cairo_pattern_create_radial (1, 2, 3,
4, 5, 6);
status = cairo_pattern_get_radial_circles (pat, &a, &b, &c, &d, &e, &f);
CHECK_SUCCESS;
if (!CAIRO_TEST_DOUBLE_EQUALS(a,1.0) ||
!CAIRO_TEST_DOUBLE_EQUALS(b,2.0) ||
!CAIRO_TEST_DOUBLE_EQUALS(c,3.0) ||
!CAIRO_TEST_DOUBLE_EQUALS(d,4.0) ||
!CAIRO_TEST_DOUBLE_EQUALS(e,5.0) ||
!CAIRO_TEST_DOUBLE_EQUALS(f,6.0))
return CAIRO_TEST_FAILURE;
cairo_pattern_destroy (pat);
}
cairo_set_source_rgb (cr, 0, 1, 0);
cairo_paint (cr);
return CAIRO_TEST_SUCCESS;
}
