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[win32] Allow for creating a font from a HFONT

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(cherry picked from 677f6c84f9beae3afd375663fed0a440007ebca2 commit)
This commit is contained in:
Stuart Parmenter 2006-03-10 12:12:36 -08:00 • committed by Carl Worth
parent 244c111fca
commit a10bbecaf8
2 changed files with 34 additions and 4 deletions
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35
src/cairo-win32-font.c
View file

@ -98,7 +98,8 @@ typedef struct {
HFONT scaled_hfont;
HFONT unscaled_hfont;
cairo_bool_t delete_scaled_hfont;
} cairo_win32_scaled_font_t;
static cairo_status_t
@ -225,6 +226,7 @@ _get_system_quality (void)
static cairo_scaled_font_t *
_win32_scaled_font_create (LOGFONTW *logfont,
HFONT hfont,
cairo_font_face_t *font_face,
const cairo_matrix_t *font_matrix,
const cairo_matrix_t *ctm,
@ -270,9 +272,12 @@ _win32_scaled_font_create (LOGFONTW *logfont,
}
f->em_square = 0;
f->scaled_hfont = NULL;
f->scaled_hfont = hfont;
f->unscaled_hfont = NULL;
/* don't delete the hfont if it was passed in to us */
f->delete_scaled_hfont = !hfont;
cairo_matrix_multiply (&scale, font_matrix, ctm);
_compute_transform (f, &scale);
@ -516,7 +521,7 @@ _cairo_win32_scaled_font_create_toy (cairo_toy_font_face_t *toy_face,
if (!logfont.lfFaceName)
return CAIRO_STATUS_NO_MEMORY;
scaled_font = _win32_scaled_font_create (&logfont, &toy_face->base,
scaled_font = _win32_scaled_font_create (&logfont, NULL, &toy_face->base,
font_matrix, ctm, options);
if (!scaled_font)
return CAIRO_STATUS_NO_MEMORY;
@ -534,7 +539,7 @@ _cairo_win32_scaled_font_fini (void *abstract_font)
if (scaled_font == NULL)
return;
if (scaled_font->scaled_hfont)
if (scaled_font->scaled_hfont && scaled_font->delete_scaled_hfont)
DeleteObject (scaled_font->scaled_hfont);
if (scaled_font->unscaled_hfont)
@ -1371,6 +1376,7 @@ typedef struct _cairo_win32_font_face cairo_win32_font_face_t;
struct _cairo_win32_font_face {
cairo_font_face_t base;
LOGFONTW logfont;
HFONT hfont;
};
/* implement the platform-specific interface */
@ -1390,6 +1396,7 @@ _cairo_win32_font_face_scaled_font_create (void *abstract_face,
cairo_win32_font_face_t *font_face = abstract_face;
*font = _win32_scaled_font_create (&font_face->logfont,
font_face->hfont,
&font_face->base,
font_matrix, ctm, options);
if (*font)
@ -1431,6 +1438,26 @@ cairo_win32_font_face_create_for_logfontw (LOGFONTW *logfont)
}
font_face->logfont = *logfont;
font_face->hfont = NULL;
_cairo_font_face_init (&font_face->base, &_cairo_win32_font_face_backend);
return &font_face->base;
}
cairo_font_face_t *
cairo_win32_font_face_create_for_hfont (HFONT font)
{
cairo_win32_font_face_t *font_face;
font_face = malloc (sizeof (cairo_win32_font_face_t));
if (!font_face) {
_cairo_error (CAIRO_STATUS_NO_MEMORY);
return (cairo_font_face_t *)&_cairo_font_face_nil;
}
font_face->hfont = font;
_cairo_font_face_init (&font_face->base, &_cairo_win32_font_face_backend);

3
src/cairo-win32.h
View file

@ -58,6 +58,9 @@ cairo_win32_surface_get_dc (cairo_surface_t *surface);
cairo_public cairo_font_face_t *
cairo_win32_font_face_create_for_logfontw (LOGFONTW *logfont);
cairo_public cairo_font_face_t *
cairo_win32_font_face_create_for_hfont (HFONT font);
cairo_public cairo_status_t
cairo_win32_scaled_font_select_font (cairo_scaled_font_t *scaled_font,
HDC hdc);