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[cairo-win32-font.c] Return error on font type mismatch

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This commit is contained in:
Behdad Esfahbod 2008-05-09 11:31:54 +02:00
parent 2a9bb6f78c
commit 2a1661fba9
1 changed files with 27 additions and 0 deletions
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27
src/cairo-win32-font.c
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@ -1941,6 +1941,12 @@ cairo_win32_font_face_create_for_hfont (HFONT font)
return cairo_win32_font_face_create_for_logfontw_hfont (&logfont, font);
}
static cairo_bool_t
_cairo_scaled_font_is_win32 (cairo_scaled_font_t *scaled_font)
{
return scaled_font->backend == &cairo_win32_scaled_font_backend;
}
/**
* cairo_win32_scaled_font_select_font:
* @scaled_font: A #cairo_scaled_font_t from the Win32 font backend. Such an
@ -1974,6 +1980,10 @@ cairo_win32_scaled_font_select_font (cairo_scaled_font_t *scaled_font,
HFONT old_hfont = NULL;
int old_mode;
if (! _cairo_scaled_font_is_win32 (scaled_font)) {
return _cairo_error (CAIRO_STATUS_FONT_TYPE_MISMATCH);
}
if (scaled_font->status)
return scaled_font->status;
@ -2013,6 +2023,9 @@ cairo_win32_scaled_font_select_font (cairo_scaled_font_t *scaled_font,
void
cairo_win32_scaled_font_done_font (cairo_scaled_font_t *scaled_font)
{
if (! _cairo_scaled_font_is_win32 (scaled_font)) {
_cairo_error_throw (CAIRO_STATUS_FONT_TYPE_MISMATCH);
}
}
/**
@ -2030,6 +2043,10 @@ cairo_win32_scaled_font_done_font (cairo_scaled_font_t *scaled_font)
double
cairo_win32_scaled_font_get_metrics_factor (cairo_scaled_font_t *scaled_font)
{
if (! _cairo_scaled_font_is_win32 (scaled_font)) {
_cairo_error_throw (CAIRO_STATUS_FONT_TYPE_MISMATCH);
return 1.;
}
return 1. / ((cairo_win32_scaled_font_t *)scaled_font)->logical_scale;
}
@ -2048,6 +2065,11 @@ cairo_win32_scaled_font_get_logical_to_device (cairo_scaled_font_t *scaled_font,
cairo_matrix_t *logical_to_device)
{
cairo_win32_scaled_font_t *win_font = (cairo_win32_scaled_font_t *)scaled_font;
if (! _cairo_scaled_font_is_win32 (scaled_font)) {
_cairo_error_throw (CAIRO_STATUS_FONT_TYPE_MISMATCH);
cairo_matrix_init_identity (logical_to_device);
return;
}
*logical_to_device = win_font->logical_to_device;
}
@ -2066,5 +2088,10 @@ cairo_win32_scaled_font_get_device_to_logical (cairo_scaled_font_t *scaled_font,
cairo_matrix_t *device_to_logical)
{
cairo_win32_scaled_font_t *win_font = (cairo_win32_scaled_font_t *)scaled_font;
if (! _cairo_scaled_font_is_win32 (scaled_font)) {
_cairo_error_throw (CAIRO_STATUS_FONT_TYPE_MISMATCH);
cairo_matrix_init_identity (device_to_logical);
return;
}
*device_to_logical = win_font->device_to_logical;
}