IoCairoFontOptions *IoCairoFontOptions_rawClone(IoCairoFontOptions *proto)
{
IoCairoFontOptions *self = IoObject_rawClonePrimitive(proto);
if (OPTIONS(proto))
IoObject_setDataPointer_(self, cairo_font_options_copy(OPTIONS(proto)));
return self;
}
void FontPlatformData::initializeWithFontFace(cairo_font_face_t* fontFace)
{
cairo_font_options_t* options = cairo_font_options_copy(getDefaultFontOptions());
cairo_matrix_t ctm;
cairo_matrix_init_identity(&ctm);
cairo_matrix_t fontMatrix;
if (!m_pattern)
cairo_matrix_init_scale(&fontMatrix, m_size, m_size);
else {
setCairoFontOptionsFromFontConfigPattern(options, m_pattern.get());
// FontConfig may return a list of transformation matrices with the pattern, for instance,
// for fonts that are oblique. We use that to initialize the cairo font matrix.
FcMatrix fontConfigMatrix, *tempFontConfigMatrix;
FcMatrixInit(&fontConfigMatrix);
// These matrices may be stacked in the pattern, so it's our job to get them all and multiply them.
for (int i = 0; FcPatternGetMatrix(m_pattern.get(), FC_MATRIX, i, &tempFontConfigMatrix) == FcResultMatch; i++)
FcMatrixMultiply(&fontConfigMatrix, &fontConfigMatrix, tempFontConfigMatrix);
cairo_matrix_init(&fontMatrix, fontConfigMatrix.xx, -fontConfigMatrix.yx,
-fontConfigMatrix.xy, fontConfigMatrix.yy, 0, 0);
// The matrix from FontConfig does not include the scale.
cairo_matrix_scale(&fontMatrix, m_size, m_size);
}
m_scaledFont = adoptPlatformRef(cairo_scaled_font_create(fontFace, &fontMatrix, &ctm, options));
cairo_font_options_destroy(options);
}
static VALUE
cr_options_copy (VALUE self)
{
cairo_font_options_t *options;
options = cairo_font_options_copy (_SELF (self));
cr_options_check_status (options);
return CRFONTOPTIONS2RVAL (options);
}
static cairo_font_options_t* getDefaultFontOptions()
{
#if PLATFORM(GTK)
if (GdkScreen* screen = gdk_screen_get_default()) {
const cairo_font_options_t* screenOptions = gdk_screen_get_font_options(screen);
if (screenOptions)
return cairo_font_options_copy(screenOptions);
}
#endif
return cairo_font_options_create();
}
static void
lsm_dom_view_set_cairo_context (LsmDomView *view, cairo_t *cairo)
{
PangoContext *context;
cairo_font_options_t *font_options;
const cairo_font_options_t *current_font_options;
cairo_surface_t *surface;
cairo_surface_type_t type;
g_return_if_fail (LSM_IS_DOM_VIEW (view));
if (view->cairo == cairo)
return;
if (view->cairo != NULL) {
cairo_destroy (view->cairo);
g_object_unref (view->pango_layout);
}
if (cairo == NULL) {
view->cairo = NULL;
view->pango_layout = NULL;
return;
}
cairo_reference (cairo);
view->cairo = cairo;
view->pango_layout = pango_cairo_create_layout (cairo);
surface = cairo_get_target (cairo);
type = cairo_surface_get_type (surface);
view->is_vector = (type == CAIRO_SURFACE_TYPE_SVG ||
type == CAIRO_SURFACE_TYPE_PDF ||
type == CAIRO_SURFACE_TYPE_PS);
context = pango_layout_get_context (view->pango_layout);
pango_cairo_context_set_resolution (context, 72);
current_font_options = pango_cairo_context_get_font_options (context);
if (current_font_options == NULL)
font_options = cairo_font_options_create ();
else
font_options = cairo_font_options_copy (current_font_options);
cairo_font_options_set_hint_metrics (font_options, CAIRO_HINT_METRICS_OFF);
pango_cairo_context_set_font_options (context, font_options);
cairo_font_options_destroy (font_options);
}
/**
* gdk_screen_set_font_options:
* @screen: a #GdkScreen
* @options: a #cairo_font_options_t, or %NULL to unset any
* previously set default font options.
*
* Sets the default font options for the screen. These
* options will be set on any #PangoContext's newly created
* with gdk_pango_context_get_for_screen(). Changing the
* default set of font options does not affect contexts that
* have already been created.
*
* Since: 2.10
**/
void
gdk_screen_set_font_options (GdkScreen *screen,
const cairo_font_options_t *options)
{
g_return_if_fail (GDK_IS_SCREEN (screen));
if (screen->font_options != options)
{
if (screen->font_options)
cairo_font_options_destroy (screen->font_options);
if (options)
screen->font_options = cairo_font_options_copy (options);
else
screen->font_options = NULL;
g_object_notify (G_OBJECT (screen), "font-options");
}
}
void
_pango_cairo_font_private_initialize (PangoCairoFontPrivate *cf_priv,
PangoCairoFont *cfont,
PangoGravity gravity,
const cairo_font_options_t *font_options,
const PangoMatrix *pango_ctm,
const cairo_matrix_t *font_matrix)
{
cairo_matrix_t gravity_matrix;
cf_priv->cfont = cfont;
cf_priv->gravity = gravity;
cf_priv->data = _pango_cairo_font_private_scaled_font_data_create ();
/* first apply gravity rotation, then font_matrix, such that
* vertical italic text comes out "correct". we don't do anything
* like baseline adjustment etc though. should be specially
* handled when we support italic correction. */
cairo_matrix_init_rotate(&gravity_matrix,
pango_gravity_to_rotation (cf_priv->gravity));
cairo_matrix_multiply (&cf_priv->data->font_matrix,
font_matrix,
&gravity_matrix);
if (pango_ctm)
cairo_matrix_init (&cf_priv->data->ctm,
pango_ctm->xx,
pango_ctm->yx,
pango_ctm->xy,
pango_ctm->yy,
0., 0.);
else
cairo_matrix_init_identity (&cf_priv->data->ctm);
cf_priv->data->options = cairo_font_options_copy (font_options);
cf_priv->is_hinted = cairo_font_options_get_hint_metrics (font_options) != CAIRO_HINT_METRICS_OFF;
cf_priv->scaled_font = NULL;
cf_priv->hbi = NULL;
cf_priv->glyph_extents_cache = NULL;
cf_priv->metrics_by_lang = NULL;
}
/**
* clutter_backend_set_font_options:
* @backend: a #ClutterBackend
* @options: Cairo font options for the backend, or %NULL
*
* Sets the new font options for @backend. The #ClutterBackend will
* copy the #cairo_font_options_t.
*
* If @options is %NULL, the first following call to
* clutter_backend_get_font_options() will return the default font
* options for @backend.
*
* This function is intended for actors creating a Pango layout
* using the PangoCairo API.
*
* Since: 0.8
*/
void
clutter_backend_set_font_options (ClutterBackend *backend,
const cairo_font_options_t *options)
{
g_return_if_fail (CLUTTER_IS_BACKEND (backend));
if (backend->font_options != options)
{
if (backend->font_options)
cairo_font_options_destroy (backend->font_options);
if (options)
backend->font_options = cairo_font_options_copy (options);
else
backend->font_options = NULL;
g_signal_emit (backend, backend_signals[FONT_CHANGED], 0);
}
}
void FontPlatformData::initializeWithFontFace(cairo_font_face_t* fontFace)
{
cairo_font_options_t* options = 0;
#if !PLATFORM(CLUTTER) && (!PLATFORM(EFL) || ENABLE(GLIB_SUPPORT))
if (GdkScreen* screen = gdk_screen_get_default())
options = cairo_font_options_copy(gdk_screen_get_font_options(screen));
#endif
// gdk_screen_get_font_options() returns null if no default
// options are set, so we always have to check.
if (!options)
options = cairo_font_options_create();
cairo_matrix_t ctm;
cairo_matrix_init_identity(&ctm);
cairo_matrix_t fontMatrix;
if (!m_pattern)
cairo_matrix_init_scale(&fontMatrix, m_size, m_size);
else {
setCairoFontOptionsFromFontConfigPattern(options, m_pattern.get());
// FontConfig may return a list of transformation matrices with the pattern, for instance,
// for fonts that are oblique. We use that to initialize the cairo font matrix.
FcMatrix fontConfigMatrix, *tempFontConfigMatrix;
FcMatrixInit(&fontConfigMatrix);
// These matrices may be stacked in the pattern, so it's our job to get them all and multiply them.
for (int i = 0; FcPatternGetMatrix(m_pattern.get(), FC_MATRIX, i, &tempFontConfigMatrix) == FcResultMatch; i++)
FcMatrixMultiply(&fontConfigMatrix, &fontConfigMatrix, tempFontConfigMatrix);
cairo_matrix_init(&fontMatrix, fontConfigMatrix.xx, -fontConfigMatrix.yx,
-fontConfigMatrix.xy, fontConfigMatrix.yy, 0, 0);
// The matrix from FontConfig does not include the scale.
cairo_matrix_scale(&fontMatrix, m_size, m_size);
}
m_scaledFont = adoptPlatformRef(cairo_scaled_font_create(fontFace, &fontMatrix, &ctm, options));
cairo_font_options_destroy(options);
}
static void
ar_card_theme_preimage_set_font_options (ArCardTheme *card_theme,
const cairo_font_options_t *font_options)
{
ArCardThemePreimage *theme = (ArCardThemePreimage *) card_theme;
if (font_options &&
theme->font_options &&
cairo_font_options_equal (font_options, theme->font_options))
return;
if (theme->font_options) {
cairo_font_options_destroy (theme->font_options);
}
if (font_options) {
theme->font_options = cairo_font_options_copy (font_options);
} else {
theme->font_options = NULL;
}
_ar_card_theme_preimage_clear_sized_theme_data (theme);
_ar_card_theme_emit_changed (card_theme);
}
FontPlatformData::FontPlatformData(const FontDescription& fontDescription, const AtomicString& familyName)
: m_context(0)
, m_font(0)
, m_size(fontDescription.computedSize())
, m_syntheticBold(false)
, m_syntheticOblique(false)
, m_scaledFont(0)
{
FontPlatformData::init();
CString stored_family = familyName.string().utf8();
char const* families[] = {
stored_family.data(),
NULL
};
switch (fontDescription.genericFamily()) {
case FontDescription::SerifFamily:
families[1] = "serif";
break;
case FontDescription::SansSerifFamily:
families[1] = "sans";
break;
case FontDescription::MonospaceFamily:
families[1] = "monospace";
break;
case FontDescription::NoFamily:
case FontDescription::StandardFamily:
default:
families[1] = "sans";
break;
}
PangoFontDescription* description = pango_font_description_new();
pango_font_description_set_absolute_size(description, fontDescription.computedSize() * PANGO_SCALE);
// FIXME: Map all FontWeight values to Pango font weights.
if (fontDescription.weight() >= FontWeight600)
pango_font_description_set_weight(description, PANGO_WEIGHT_BOLD);
if (fontDescription.italic())
pango_font_description_set_style(description, PANGO_STYLE_ITALIC);
#if PANGO_VERSION_CHECK(1,21,5) // deprecated in 1.21
m_context = pango_font_map_create_context(m_fontMap);
#else
m_context = pango_cairo_font_map_create_context(PANGO_CAIRO_FONT_MAP(m_fontMap));
#endif
for (unsigned int i = 0; !m_font && i < G_N_ELEMENTS(families); i++) {
pango_font_description_set_family(description, families[i]);
pango_context_set_font_description(m_context, description);
m_font = pango_font_map_load_font(m_fontMap, m_context, description);
}
#if PANGO_VERSION_CHECK(1,18,0)
if (m_font)
m_scaledFont = cairo_scaled_font_reference(pango_cairo_font_get_scaled_font(PANGO_CAIRO_FONT(m_font)));
#else
// This compatibility code for older versions of Pango is not well-tested.
if (m_font) {
PangoFcFont* fcfont = PANGO_FC_FONT(m_font);
cairo_font_face_t* face = cairo_ft_font_face_create_for_pattern(fcfont->font_pattern);
double size;
if (FcPatternGetDouble(fcfont->font_pattern, FC_PIXEL_SIZE, 0, &size) != FcResultMatch)
size = 12.0;
cairo_matrix_t fontMatrix;
cairo_matrix_init_scale(&fontMatrix, size, size);
cairo_font_options_t* fontOptions;
if (pango_cairo_context_get_font_options(m_context))
fontOptions = cairo_font_options_copy(pango_cairo_context_get_font_options(m_context));
else
fontOptions = cairo_font_options_create();
cairo_matrix_t ctm;
cairo_matrix_init_identity(&ctm);
m_scaledFont = cairo_scaled_font_create(face, &fontMatrix, &ctm, fontOptions);
cairo_font_options_destroy(fontOptions);
cairo_font_face_destroy(face);
}
#endif
pango_font_description_free(description);
}
FontPlatformData::FontPlatformData(const FontDescription& fontDescription, const UChar *characters, int length)
: m_context(0)
, m_font(0)
, m_size(fontDescription.computedSize())
, m_syntheticBold(false)
, m_syntheticOblique(false)
, m_scaledFont(0)
{
FontPlatformData::init();
const UChar character = characters[0];
char const *family;
switch (fontDescription.genericFamily()) {
case FontDescription::SerifFamily:
family = "serif";
break;
case FontDescription::SansSerifFamily:
family = "sans";
break;
case FontDescription::MonospaceFamily:
family = "monospace";
break;
case FontDescription::NoFamily:
case FontDescription::StandardFamily:
default:
family = "sans";
break;
}
m_context = pango_cairo_font_map_create_context(PANGO_CAIRO_FONT_MAP(m_fontMap));
PangoFontDescription* description = pango_font_description_new();
pango_font_description_set_absolute_size(description, fontDescription.computedSize() * PANGO_SCALE);
if (fontDescription.weight() >= FontWeight600)
pango_font_description_set_weight(description, PANGO_WEIGHT_BOLD);
if (fontDescription.italic())
pango_font_description_set_style(description, PANGO_STYLE_ITALIC);
pango_font_description_set_family(description, family);
pango_context_set_font_description(m_context, description);
PangoFontset *fset = pango_font_map_load_fontset (m_fontMap, m_context, description, NULL);
// Get the font from the fontset which contains the best glyph for this character
m_font = pango_fontset_get_font(fset, (guint)character);
#if PANGO_VERSION_CHECK(1,18,0)
if (m_font)
m_scaledFont = cairo_scaled_font_reference(pango_cairo_font_get_scaled_font(PANGO_CAIRO_FONT(m_font)));
#else
// This compatibility code for older versions of Pango is not well-tested.
if (m_font) {
PangoFcFont* fcfont = PANGO_FC_FONT(m_font);
cairo_font_face_t* face = cairo_ft_font_face_create_for_pattern(fcfont->font_pattern);
double size;
if (FcPatternGetDouble(fcfont->font_pattern, FC_PIXEL_SIZE, 0, &size) != FcResultMatch)
size = 12.0;
cairo_matrix_t fontMatrix;
cairo_matrix_init_scale(&fontMatrix, size, size);
cairo_font_options_t* fontOptions;
if (pango_cairo_context_get_font_options(m_context))
fontOptions = cairo_font_options_copy(pango_cairo_context_get_font_options(m_context));
else
fontOptions = cairo_font_options_create();
cairo_matrix_t ctm;
cairo_matrix_init_identity(&ctm);
m_scaledFont = cairo_scaled_font_create(face, &fontMatrix, &ctm, fontOptions);
cairo_font_options_destroy(fontOptions);
cairo_font_face_destroy(face);
}
#endif
pango_font_description_free(description);
}
