static cairo_test_status_t
check_font_extents (const cairo_test_context_t *ctx, cairo_t *cr, const char *comment)
{
cairo_font_extents_t font_extents, ref_font_extents = {11, 2, 13, 6, 0};
cairo_status_t status;
memset (&font_extents, 0xff, sizeof (cairo_font_extents_t));
cairo_font_extents (cr, &font_extents);
status = cairo_status (cr);
if (status)
return cairo_test_status_from_status (ctx, status);
if (! font_extents_equal (&font_extents, &ref_font_extents)) {
cairo_test_log (ctx, "Error: %s: cairo_font_extents(); extents (%g, %g, %g, %g, %g)\n",
comment,
font_extents.ascent, font_extents.descent,
font_extents.height,
font_extents.max_x_advance, font_extents.max_y_advance);
return CAIRO_TEST_FAILURE;
}
return CAIRO_TEST_SUCCESS;
}
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_text_extents_t extents, nil_extents;
cairo_font_extents_t font_extents, nil_font_extents;
cairo_scaled_font_t *scaled_font;
cairo_select_font_face (cr, "Bitstream Vera Sans",
CAIRO_FONT_SLANT_NORMAL,
CAIRO_FONT_WEIGHT_NORMAL);
cairo_set_font_size (cr, 16);
cairo_move_to (cr, 10, 25);
cairo_show_text (cr, NULL);
cairo_show_text (cr, "");
cairo_show_glyphs (cr, NULL, 0);
cairo_show_glyphs (cr, (void*)8, 0);
cairo_move_to (cr, 10, 55);
cairo_text_path (cr, NULL);
cairo_text_path (cr, "");
cairo_glyph_path (cr, (void*)8, 0);
cairo_fill (cr);
memset (&nil_extents, 0, sizeof (cairo_text_extents_t));
memset (&extents, 0xff, sizeof (cairo_text_extents_t));
cairo_text_extents (cr, "", &extents);
if (! text_extents_equal (&extents, &nil_extents)) {
cairo_test_log (ctx, "Error: cairo_text_extents(\"\"); extents (%g, %g, %g, %g, %g, %g)\n",
extents.x_bearing, extents.y_bearing,
extents.width, extents.height,
extents.x_advance, extents.y_advance);
return CAIRO_TEST_FAILURE;
}
memset (&extents, 0xff, sizeof (cairo_text_extents_t));
cairo_text_extents (cr, NULL, &extents);
if (! text_extents_equal (&extents, &nil_extents)) {
cairo_test_log (ctx, "Error: cairo_text_extents(NULL); extents (%g, %g, %g, %g, %g, %g)\n",
extents.x_bearing, extents.y_bearing,
extents.width, extents.height,
extents.x_advance, extents.y_advance);
return CAIRO_TEST_FAILURE;
}
memset (&extents, 0xff, sizeof (cairo_text_extents_t));
cairo_glyph_extents (cr, (void*)8, 0, &extents);
if (! text_extents_equal (&extents, &nil_extents)) {
cairo_test_log (ctx, "Error: cairo_glyph_extents(); extents (%g, %g, %g, %g, %g, %g)\n",
extents.x_bearing, extents.y_bearing,
extents.width, extents.height,
extents.x_advance, extents.y_advance);
return CAIRO_TEST_FAILURE;
}
scaled_font = cairo_get_scaled_font (cr);
memset (&extents, 0xff, sizeof (cairo_text_extents_t));
cairo_scaled_font_text_extents (scaled_font, "", &extents);
if (! text_extents_equal (&extents, &nil_extents)) {
cairo_test_log (ctx, "Error: cairo_scaled_font_text_extents(\"\"); extents (%g, %g, %g, %g, %g, %g)\n",
extents.x_bearing, extents.y_bearing,
extents.width, extents.height,
extents.x_advance, extents.y_advance);
return CAIRO_TEST_FAILURE;
}
memset (&extents, 0xff, sizeof (cairo_text_extents_t));
cairo_scaled_font_text_extents (scaled_font, NULL, &extents);
if (! text_extents_equal (&extents, &nil_extents)) {
cairo_test_log (ctx, "Error: cairo_scaled_font_text_extents(NULL); extents (%g, %g, %g, %g, %g, %g)\n",
extents.x_bearing, extents.y_bearing,
extents.width, extents.height,
extents.x_advance, extents.y_advance);
return CAIRO_TEST_FAILURE;
}
memset (&extents, 0xff, sizeof (cairo_text_extents_t));
cairo_scaled_font_glyph_extents (scaled_font, (void*)8, 0, &extents);
if (! text_extents_equal (&extents, &nil_extents)) {
cairo_test_log (ctx, "Error: cairo_scaled_font_glyph_extents(NULL); extents (%g, %g, %g, %g, %g, %g)\n",
extents.x_bearing, extents.y_bearing,
extents.width, extents.height,
extents.x_advance, extents.y_advance);
return CAIRO_TEST_FAILURE;
}
/* Lets also try font size 0 while here */
cairo_set_font_size (cr, 0);
memset (&extents, 0xff, sizeof (cairo_text_extents_t));
cairo_text_extents (cr, "test", &extents);
if (! text_extents_equal (&extents, &nil_extents)) {
cairo_test_log (ctx, "Error: cairo_set_font_size(0); cairo_text_extents(\"test\"); extents (%g, %g, %g, %g, %g, %g)\n",
extents.x_bearing, extents.y_bearing,
extents.width, extents.height,
extents.x_advance, extents.y_advance);
return CAIRO_TEST_FAILURE;
}
memset (&nil_font_extents, 0, sizeof (cairo_font_extents_t));
memset (&font_extents, 0xff, sizeof (cairo_font_extents_t));
cairo_font_extents (cr, &font_extents);
if (! font_extents_equal (&font_extents, &nil_font_extents)) {
cairo_test_log (ctx, "Error: cairo_set_font_size(0); cairo_font_extents(); extents (%g, %g, %g, %g, %g)\n",
font_extents.ascent, font_extents.descent,
font_extents.height,
font_extents.max_x_advance, font_extents.max_y_advance);
return CAIRO_TEST_FAILURE;
}
scaled_font = cairo_get_scaled_font (cr);
memset (&font_extents, 0xff, sizeof (cairo_font_extents_t));
cairo_scaled_font_extents (scaled_font, &font_extents);
if (! font_extents_equal (&font_extents, &nil_font_extents)) {
cairo_test_log (ctx, "Error: cairo_set_font_size(0); cairo_scaled_font_extents(); extents (%g, %g, %g, %g, %g)\n",
font_extents.ascent, font_extents.descent,
font_extents.height,
font_extents.max_x_advance, font_extents.max_y_advance);
return CAIRO_TEST_FAILURE;
}
return CAIRO_TEST_SUCCESS;
}