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2006-10-03 Matthew Allum <mallum@openedhand.com>

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* configure.ac:
        * clutter/Makefile.am:
        * clutter/clutter-actor.c:
        * clutter/clutter-label.c:
        * clutter/clutter-label.h:
        * clutter/pango/Makefile.am:
        * clutter/pango/pangoclutter-font.c:
        * clutter/pango/pangoclutter-fontmap.c:
        * clutter/pango/pangoclutter-private.h:
        * clutter/pango/pangoclutter-render.c:
        * clutter/pango/pangoclutter.h:
        Add initial rough new pango renderer and clutter-label.

        * examples/super-oh.c:
        * examples/test.c:
        Minor fixups
This commit is contained in:
Matthew Allum 2006-10-03 21:59:30 +00:00
parent 1bd964c757
commit e9cceac1ee
14 changed files with 2167 additions and 197 deletions
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19
ChangeLog
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@ -1,3 +1,22 @@
2006-10-03 Matthew Allum <mallum@openedhand.com>
* configure.ac:
* clutter/Makefile.am:
* clutter/clutter-actor.c:
* clutter/clutter-label.c:
* clutter/clutter-label.h:
* clutter/pango/Makefile.am:
* clutter/pango/pangoclutter-font.c:
* clutter/pango/pangoclutter-fontmap.c:
* clutter/pango/pangoclutter-private.h:
* clutter/pango/pangoclutter-render.c:
* clutter/pango/pangoclutter.h:
Add initial rough new pango renderer and clutter-label.
* examples/super-oh.c:
* examples/test.c:
Minor fixups
2006-09-20 Matthew Allum <mallum@openedhand.com> 2006-09-20 Matthew Allum <mallum@openedhand.com>
* clutter/clutter-actor.c: (clutter_actor_paint): * clutter/clutter-actor.c: (clutter_actor_paint):

9
clutter/Makefile.am
View File

@ -1,3 +1,5 @@
SUBDIRS=pango
MARSHALFILES = clutter-marshal.c clutter-marshal.h MARSHALFILES = clutter-marshal.c clutter-marshal.h
ENUMFILES = clutter-enum-types.c clutter-enum-types.h ENUMFILES = clutter-enum-types.c clutter-enum-types.h
GLIB_GENMARSHAL=`pkg-config --variable=glib_genmarshal glib-2.0` GLIB_GENMARSHAL=`pkg-config --variable=glib_genmarshal glib-2.0`
@ -97,12 +99,15 @@ libclutter_@CLUTTER_MAJORMINOR@_la_SOURCES = $(MARSHALFILES) \
$(source_h) \ $(source_h) \
$(source_h_priv) $(source_h_priv)
INCLUDES = @GCC_FLAGS@ @CLUTTER_CFLAGS@ -I$(top_srcdir) INCLUDES = @GCC_FLAGS@ @CLUTTER_CFLAGS@ -I$(top_srcdir) -I$(top_srcdir)/clutter/pango
lib_LTLIBRARIES = libclutter-@CLUTTER_MAJORMINOR@.la lib_LTLIBRARIES = libclutter-@CLUTTER_MAJORMINOR@.la
libclutter_@CLUTTER_MAJORMINOR@_la_LIBADD = @CLUTTER_LIBS@ libclutter_@CLUTTER_MAJORMINOR@_la_LIBADD = \
@CLUTTER_LIBS@ $(top_srcdir)/clutter/pango/libpangoclutter.a
libclutter_@CLUTTER_MAJORMINOR@_la_LDFLAGS = @CLUTTER_LT_LDFLAGS@ libclutter_@CLUTTER_MAJORMINOR@_la_LDFLAGS = @CLUTTER_LT_LDFLAGS@
libclutter_@CLUTTER_MAJORMINOR@_la_DEPENDENCIES = \
$(top_srcdir)/clutter/pango/libpangoclutter.a
clutterheadersdir = $(includedir)/clutter-@CLUTTER_MAJORMINOR@/clutter clutterheadersdir = $(includedir)/clutter-@CLUTTER_MAJORMINOR@/clutter
clutterheaders_HEADERS = $(source_h) \ clutterheaders_HEADERS = $(source_h) \

3
clutter/clutter-actor.c
View File

@ -338,9 +338,6 @@ clutter_actor_paint (ClutterActor *self)
if (self->priv->has_clip) if (self->priv->has_clip)
{ {
glDisable (GL_STENCIL_TEST); glDisable (GL_STENCIL_TEST);
#if 0
glDisable (GL_SCISSOR_TEST);
#endif
} }
glPopMatrix(); glPopMatrix();

741
clutter/clutter-label.c
View File

@ -37,18 +37,28 @@
#include "clutter-enum-types.h" #include "clutter-enum-types.h"
#include "clutter-private.h" /* for DBG */ #include "clutter-private.h" /* for DBG */
#include <pango/pangoft2.h> #include "pangoclutter.h"
#define DEFAULT_FONT_NAME "Sans 10" #define DEFAULT_FONT_NAME "Sans 10"
G_DEFINE_TYPE (ClutterLabel, clutter_label, CLUTTER_TYPE_TEXTURE); G_DEFINE_TYPE (ClutterLabel, clutter_label, CLUTTER_TYPE_ACTOR);
/* Probably move into main */
static PangoClutterFontMap *_font_map = NULL;
static PangoContext *_context = NULL;
enum enum
{ {
PROP_0, PROP_0,
PROP_FONT_NAME, PROP_FONT_NAME,
PROP_TEXT, PROP_TEXT,
PROP_COLOR PROP_COLOR,
PROP_ATTRIBUTES,
PROP_USE_MARKUP,
PROP_ALIGNMENT, /* FIXME */
PROP_WRAP,
PROP_WRAP_MODE,
PROP_ELLIPSIZE,
}; };
#define CLUTTER_LABEL_GET_PRIVATE(obj) \ #define CLUTTER_LABEL_GET_PRIVATE(obj) \
@ -56,7 +66,6 @@ enum
struct _ClutterLabelPrivate struct _ClutterLabelPrivate
{ {
PangoLayout *layout;
PangoContext *context; PangoContext *context;
PangoFontDescription *desc; PangoFontDescription *desc;
@ -67,97 +76,21 @@ struct _ClutterLabelPrivate
gint extents_width; gint extents_width;
gint extents_height; gint extents_height;
guint alignment : 2;
guint wrap : 1;
guint use_underline : 1;
guint use_markup : 1;
guint ellipsize : 3;
guint single_line_mode : 1;
guint wrap_mode : 3;
PangoAttrList *attrs;
PangoAttrList *effective_attrs;
PangoLayout *layout;
gint width_chars;
}; };
static void
clutter_label_make_pixbuf (ClutterLabel *label)
{
gint bx, by, w, h;
FT_Bitmap ft_bitmap;
guint8 const *ps;
guint8 *pd;
ClutterLabelPrivate *priv;
ClutterTexture *texture;
GdkPixbuf *pixbuf;
priv = label->priv;
texture = CLUTTER_TEXTURE(label);
if (priv->layout == NULL || priv->desc == NULL || priv->text == NULL)
{
CLUTTER_DBG("*** FAIL: layout: %p , desc: %p, text %p ***",
priv->layout, priv->desc, priv->text);
return;
}
pango_layout_set_font_description (priv->layout, priv->desc);
pango_layout_set_text (priv->layout, priv->text, -1);
if (priv->extents_width != 0)
{
CLUTTER_DBG("forcing width to '%i'", priv->extents_width);
pango_layout_set_width (priv->layout, PANGO_SCALE * priv->extents_width);
pango_layout_set_wrap (priv->layout, PANGO_WRAP_WORD);
}
pango_layout_get_pixel_size (priv->layout,
&w,
&h);
if (w == 0 || h == 0)
{
CLUTTER_DBG("aborting w:%i , h:%i", w, h);
return;
}
ft_bitmap.rows = h;
ft_bitmap.width = w;
ft_bitmap.pitch = (w+3) & ~3;
ft_bitmap.buffer = g_malloc0 (ft_bitmap.rows * ft_bitmap.pitch);
ft_bitmap.num_grays = 256;
ft_bitmap.pixel_mode = ft_pixel_mode_grays;
ft_bitmap.palette_mode = 0;
ft_bitmap.palette = NULL;
pango_ft2_render_layout (&ft_bitmap, priv->layout, 0, 0);
pixbuf = gdk_pixbuf_new (GDK_COLORSPACE_RGB,
TRUE,
8,
ft_bitmap.width,
ft_bitmap.rows);
for (by = 0; by < ft_bitmap.rows; by++)
{
pd = gdk_pixbuf_get_pixels (pixbuf)
+ by * gdk_pixbuf_get_rowstride (pixbuf);
ps = ft_bitmap.buffer + by * ft_bitmap.pitch;
for (bx = 0; bx < ft_bitmap.width; bx++)
{
*pd++ = priv->fgcol.red;
*pd++ = priv->fgcol.green;
*pd++ = priv->fgcol.blue;
*pd++ = *ps++;
}
}
g_free (ft_bitmap.buffer);
CLUTTER_DBG("Calling set_pixbuf with text : '%s' , pixb %ix%i"
" rendered with color %i,%i,%i,%i",
priv->text, w, h,
priv->fgcol.red,
priv->fgcol.green,
priv->fgcol.blue,
priv->fgcol.alpha);
clutter_texture_set_pixbuf (CLUTTER_TEXTURE (label), pixbuf);
/* Texture has the ref now */
g_object_unref (pixbuf);
}
static void static void
clutter_label_set_property (GObject *object, clutter_label_set_property (GObject *object,
@ -182,6 +115,24 @@ clutter_label_set_property (GObject *object,
case PROP_COLOR: case PROP_COLOR:
clutter_label_set_color (label, g_value_get_boxed (value)); clutter_label_set_color (label, g_value_get_boxed (value));
break; break;
case PROP_ATTRIBUTES:
clutter_label_set_attributes (label, g_value_get_boxed (value));
break;
case PROP_ALIGNMENT:
clutter_label_set_alignment (label, g_value_get_enum (value));
break;
case PROP_USE_MARKUP:
clutter_label_set_use_markup (label, g_value_get_boolean (value));
break;
case PROP_WRAP:
clutter_label_set_line_wrap (label, g_value_get_boolean (value));
break;
case PROP_WRAP_MODE:
clutter_label_set_line_wrap_mode (label, g_value_get_enum (value));
break;
case PROP_ELLIPSIZE:
clutter_label_set_ellipsize (label, g_value_get_enum (value));
break;
default: default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break; break;
@ -213,12 +164,124 @@ clutter_label_get_property (GObject *object,
clutter_label_get_color (label, &color); clutter_label_get_color (label, &color);
g_value_set_boxed (value, &color); g_value_set_boxed (value, &color);
break; break;
case PROP_ATTRIBUTES:
g_value_set_boxed (value, priv->attrs);
break;
case PROP_ALIGNMENT:
g_value_set_enum (value, priv->alignment);
break;
case PROP_USE_MARKUP:
g_value_set_boolean (value, priv->use_markup);
break;
case PROP_WRAP:
g_value_set_boolean (value, priv->wrap);
break;
case PROP_WRAP_MODE:
g_value_set_enum (value, priv->wrap_mode);
break;
case PROP_ELLIPSIZE:
g_value_set_enum (value, priv->ellipsize);
break;
default: default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break; break;
} }
} }
static void
clutter_label_ensure_layout (ClutterLabel *label, gint width)
{
ClutterLabelPrivate *priv;
priv = label->priv;
if (!priv->layout)
{
priv->layout = pango_layout_new (_context);
if (priv->effective_attrs)
pango_layout_set_attributes (priv->layout, priv->effective_attrs);
pango_layout_set_alignment (priv->layout, priv->alignment);
pango_layout_set_ellipsize (priv->layout, priv->ellipsize);
pango_layout_set_single_paragraph_mode (priv->layout,
priv->single_line_mode);
pango_layout_set_font_description (priv->layout, priv->desc);
pango_layout_set_text (priv->layout, priv->text, -1);
if (priv->wrap)
pango_layout_set_wrap (priv->layout, priv->wrap_mode);
if ((priv->ellipsize || priv->wrap) && width > 0)
{
pango_layout_set_width (priv->layout, width * PANGO_SCALE);
}
else
pango_layout_set_width (priv->layout, -1);
}
}
static void
clutter_label_clear_layout (ClutterLabel *label)
{
if (label->priv->layout)
{
g_object_unref (label->priv->layout);
label->priv->layout = NULL;
}
}
void
clutter_label_paint (ClutterActor *self)
{
ClutterLabel *label;
ClutterLabelPrivate *priv;
label = CLUTTER_LABEL(self);
priv = label->priv;
if (priv->desc == NULL || priv->text == NULL)
{
CLUTTER_DBG("*** FAIL: layout: %p , desc: %p, text %p ***",
priv->layout, priv->desc, priv->text);
return;
}
clutter_label_ensure_layout (label, clutter_actor_get_width(self));
priv->fgcol.alpha = clutter_actor_get_opacity(self);
pango_clutter_render_layout (priv->layout, 0, 0, &priv->fgcol, 0);
}
static void
clutter_label_allocate_coords (ClutterActor *self,
ClutterActorBox *box)
{
ClutterLabel *label = CLUTTER_LABEL(self);
ClutterLabelPrivate *priv;
PangoRectangle logical_rect;
priv = label->priv;
clutter_label_ensure_layout (label, box->x2 - box->x1);
pango_layout_get_extents (priv->layout, NULL, &logical_rect);
box->x2 = box->x1 + PANGO_PIXELS (logical_rect.width);
box->y2 = box->y1 + PANGO_PIXELS (logical_rect.height);
return;
}
static void
clutter_label_request_coords (ClutterActor *self,
ClutterActorBox *box)
{
/* do we need to do anything ? */
clutter_label_clear_layout (CLUTTER_LABEL(self));
}
static void static void
clutter_label_dispose (GObject *object) clutter_label_dispose (GObject *object)
@ -266,13 +329,10 @@ clutter_label_class_init (ClutterLabelClass *klass)
{ {
GObjectClass *gobject_class = G_OBJECT_CLASS (klass); GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
ClutterActorClass *actor_class = CLUTTER_ACTOR_CLASS (klass); ClutterActorClass *actor_class = CLUTTER_ACTOR_CLASS (klass);
ClutterActorClass *parent_class = CLUTTER_ACTOR_CLASS (clutter_label_parent_class);
actor_class->paint = parent_class->paint; actor_class->paint = clutter_label_paint;
actor_class->realize = parent_class->realize; actor_class->request_coords = clutter_label_request_coords;
actor_class->unrealize = parent_class->unrealize; actor_class->allocate_coords = clutter_label_allocate_coords;
actor_class->show = parent_class->show;
actor_class->hide = parent_class->hide;
gobject_class->finalize = clutter_label_finalize; gobject_class->finalize = clutter_label_finalize;
gobject_class->dispose = clutter_label_dispose; gobject_class->dispose = clutter_label_dispose;
@ -303,6 +363,61 @@ clutter_label_class_init (ClutterLabelClass *klass)
CLUTTER_TYPE_COLOR, CLUTTER_TYPE_COLOR,
G_PARAM_READWRITE)); G_PARAM_READWRITE));
g_object_class_install_property
(gobject_class, PROP_ATTRIBUTES,
g_param_spec_boxed ("attributes",
"Attributes",
"A list of style attributes to apply to the"
"text of the label",
PANGO_TYPE_ATTR_LIST,
G_PARAM_READWRITE));
g_object_class_install_property
(gobject_class, PROP_USE_MARKUP,
g_param_spec_boolean ("use-markup",
"Use markup",
"The text of the label includes XML markup."
"See pango_parse_markup()",
FALSE,
G_PARAM_READWRITE));
g_object_class_install_property
(gobject_class, PROP_WRAP,
g_param_spec_boolean ("wrap",
"Line wrap",
"If set, wrap lines if the text becomes too wide",
TRUE,
G_PARAM_READWRITE));
g_object_class_install_property
(gobject_class, PROP_WRAP_MODE,
g_param_spec_enum ("wrap-mode",
"Line wrap mode",
"If wrap is set, controls how linewrapping is done",
PANGO_TYPE_WRAP_MODE,
PANGO_WRAP_WORD,
G_PARAM_READWRITE));
g_object_class_install_property
(gobject_class, PROP_ELLIPSIZE,
g_param_spec_enum ( "ellipsize",
"Ellipsize",
"The preferred place to ellipsize the string,"
"if the label does not have enough room to "
"display the entire string",
PANGO_TYPE_ELLIPSIZE_MODE,
PANGO_ELLIPSIZE_NONE,
G_PARAM_READWRITE));
g_object_class_install_property
(gobject_class, PROP_ALIGNMENT,
g_param_spec_enum ( "alignment",
"Alignment",
"The preferred alignment for the string,",
PANGO_TYPE_ALIGNMENT,
PANGO_ALIGN_LEFT,
G_PARAM_READWRITE));
g_type_class_add_private (gobject_class, sizeof (ClutterLabelPrivate)); g_type_class_add_private (gobject_class, sizeof (ClutterLabelPrivate));
} }
@ -310,29 +425,34 @@ static void
clutter_label_init (ClutterLabel *self) clutter_label_init (ClutterLabel *self)
{ {
ClutterLabelPrivate *priv; ClutterLabelPrivate *priv;
PangoFT2FontMap *font_map;
self->priv = priv = CLUTTER_LABEL_GET_PRIVATE (self); self->priv = priv = CLUTTER_LABEL_GET_PRIVATE (self);
if (_context == NULL)
{
_font_map = PANGO_CLUTTER_FONT_MAP (pango_clutter_font_map_new ());
/* pango_clutter_font_map_set_resolution (font_map, 96.0, 96.0); */
_context = pango_clutter_font_map_create_context (_font_map);
}
priv->alignment = PANGO_ALIGN_LEFT;
priv->wrap = TRUE;
priv->wrap_mode = PANGO_WRAP_WORD;
priv->ellipsize = PANGO_ELLIPSIZE_NONE;
priv->use_underline = FALSE;
priv->use_markup = FALSE;
priv->layout = NULL;
priv->text = NULL;
priv->attrs = NULL;
priv->fgcol.red = 0; priv->fgcol.red = 0;
priv->fgcol.green = 0; priv->fgcol.green = 0;
priv->fgcol.blue = 0; priv->fgcol.blue = 0;
priv->fgcol.alpha = 255; priv->fgcol.alpha = 255;
priv->text = NULL;
priv->font_name = g_strdup (DEFAULT_FONT_NAME); priv->font_name = g_strdup (DEFAULT_FONT_NAME);
priv->desc = pango_font_description_from_string (priv->font_name); priv->desc = pango_font_description_from_string (priv->font_name);
font_map = PANGO_FT2_FONT_MAP (pango_ft2_font_map_new ());
pango_ft2_font_map_set_resolution (font_map, 96.0, 96.0);
priv->context = pango_ft2_font_map_create_context (font_map);
priv->layout = pango_layout_new (priv->context);
/* See http://bugzilla.gnome.org/show_bug.cgi?id=143542 ??
pango_ft2_font_map_substitute_changed (font_map);
g_object_unref (font_map);
*/
CLUTTER_MARK(); CLUTTER_MARK();
} }
@ -354,18 +474,10 @@ clutter_label_new_with_text (const gchar *font_name,
CLUTTER_MARK(); CLUTTER_MARK();
label = clutter_label_new (); label = clutter_label_new ();
clutter_label_set_font_name (CLUTTER_LABEL(label), font_name); clutter_label_set_font_name (CLUTTER_LABEL(label), font_name);
clutter_label_set_text (CLUTTER_LABEL(label), text); clutter_label_set_text (CLUTTER_LABEL(label), text);
/* FIXME: Why does calling like;
* return g_object_new (CLUTTER_TYPE_LABEL,
* "font-name", font_name,
* "text", text,
* NULL);
* mean text does not get rendered without color being set
* ( seems to need extra clutter_label_make_pixbuf() call )
*/
return label; return label;
} }
@ -419,7 +531,7 @@ clutter_label_set_text (ClutterLabel *label,
g_free (priv->text); g_free (priv->text);
priv->text = g_strdup (text); priv->text = g_strdup (text);
clutter_label_make_pixbuf (label); clutter_label_clear_layout (label);
if (CLUTTER_ACTOR_IS_VISIBLE (CLUTTER_ACTOR(label))) if (CLUTTER_ACTOR_IS_VISIBLE (CLUTTER_ACTOR(label)))
clutter_actor_queue_redraw (CLUTTER_ACTOR(label)); clutter_actor_queue_redraw (CLUTTER_ACTOR(label));
@ -487,7 +599,7 @@ clutter_label_set_font_name (ClutterLabel *label,
if (label->priv->text && label->priv->text[0] != '\0') if (label->priv->text && label->priv->text[0] != '\0')
{ {
clutter_label_make_pixbuf (label); clutter_label_clear_layout (label);
if (CLUTTER_ACTOR_IS_VISIBLE (CLUTTER_ACTOR(label))) if (CLUTTER_ACTOR_IS_VISIBLE (CLUTTER_ACTOR(label)))
clutter_actor_queue_redraw (CLUTTER_ACTOR(label)); clutter_actor_queue_redraw (CLUTTER_ACTOR(label));
@ -496,52 +608,6 @@ clutter_label_set_font_name (ClutterLabel *label,
g_object_notify (G_OBJECT (label), "font-name"); g_object_notify (G_OBJECT (label), "font-name");
} }
/**
* clutter_label_set_text_extents:
* @label: a #ClutterLabel
* @width: the width of the text
* @height: the height of the text
*
* Sets the maximum extents of the label's text.
*/
void
clutter_label_set_text_extents (ClutterLabel *label,
gint width,
gint height)
{
/* FIXME: height extents is broken....
*/
label->priv->extents_width = width;
label->priv->extents_height = height;
clutter_label_make_pixbuf (label);
if (CLUTTER_ACTOR_IS_VISIBLE (CLUTTER_ACTOR(label)))
clutter_actor_queue_redraw (CLUTTER_ACTOR(label));
}
/**
* clutter_label_get_text_extents:
* @label: a #ClutterLabel
* @width: return location for the width of the extents or %NULL
* @height: return location for the height of the extents or %NULL
*
* Gets the extents of the label.
*/
void
clutter_label_get_text_extents (ClutterLabel *label,
gint *width,
gint *height)
{
g_return_if_fail (CLUTTER_IS_LABEL (label));
if (width)
*width = label->priv->extents_width;
if (height)
*height = label->priv->extents_height;
}
/** /**
* clutter_label_set_color: * clutter_label_set_color:
@ -566,9 +632,8 @@ clutter_label_set_color (ClutterLabel *label,
priv->fgcol.blue = color->blue; priv->fgcol.blue = color->blue;
priv->fgcol.alpha = color->alpha; priv->fgcol.alpha = color->alpha;
clutter_label_make_pixbuf (label);
actor = CLUTTER_ACTOR (label); actor = CLUTTER_ACTOR (label);
clutter_actor_set_opacity (actor, priv->fgcol.alpha); clutter_actor_set_opacity (actor, priv->fgcol.alpha);
if (CLUTTER_ACTOR_IS_VISIBLE (actor)) if (CLUTTER_ACTOR_IS_VISIBLE (actor))
@ -601,3 +666,339 @@ clutter_label_get_color (ClutterLabel *label,
color->blue = priv->fgcol.blue; color->blue = priv->fgcol.blue;
color->alpha = priv->fgcol.alpha; color->alpha = priv->fgcol.alpha;
} }
/**
* clutter_label_set_ellipsize:
* @label: a #ClutterLabel
* @mode: a #PangoEllipsizeMode
*
* Sets the mode used to ellipsize (add an ellipsis: "...") to the text
* if there is not enough space to render the entire string.
*
* Since: 0.2
**/
void
clutter_label_set_ellipsize (ClutterLabel *label,
PangoEllipsizeMode mode)
{
g_return_if_fail (CLUTTER_IS_LABEL (label));
g_return_if_fail (mode >= PANGO_ELLIPSIZE_NONE
&& mode <= PANGO_ELLIPSIZE_END);
if ((PangoEllipsizeMode) label->priv->ellipsize != mode)
{
label->priv->ellipsize = mode;
clutter_label_clear_layout (label);
if (CLUTTER_ACTOR_IS_VISIBLE (CLUTTER_ACTOR(label)))
clutter_actor_queue_redraw (CLUTTER_ACTOR(label));
}
}
/**
* clutter_label_get_ellipsize:
* @label: a #ClutterLabel
*
* Returns the ellipsizing position of the label.
* See clutter_label_set_ellipsize().
*
* Return value: #PangoEllipsizeMode
*
* Since: 0.2
**/
PangoEllipsizeMode
clutter_label_get_ellipsize (ClutterLabel *label)
{
g_return_val_if_fail (CLUTTER_IS_LABEL (label), PANGO_ELLIPSIZE_NONE);
return label->priv->ellipsize;
}
/**
* clutter_label_set_line_wrap:
* @label: a #ClutterLabel
* @wrap: the setting
*
* Toggles line wrapping within the #ClutterLabel widget. %TRUE makes it break
* lines if text exceeds the widget's size. %FALSE lets the text get cut off
* by the edge of the widget if it exceeds the widget size.
*
* Note that setting line wrapping to %TRUE does not make the label
* wrap at its parent container's width, because CLUTTER+ widgets
* conceptually can't make their requisition depend on the parent
* container's size. For a label that wraps at a specific position,
* set the label's width using clutter_widget_set_size_request().
**/
void
clutter_label_set_line_wrap (ClutterLabel *label,
gboolean wrap)
{
g_return_if_fail (CLUTTER_IS_LABEL (label));
wrap = wrap != FALSE;
if (label->priv->wrap != wrap)
{
label->priv->wrap = wrap;
clutter_label_clear_layout (label);
if (CLUTTER_ACTOR_IS_VISIBLE (CLUTTER_ACTOR(label)))
clutter_actor_queue_redraw (CLUTTER_ACTOR(label));
g_object_notify (G_OBJECT (label), "wrap");
}
}
/**
* clutter_label_get_line_wrap:
* @label: a #ClutterLabel
*
* Returns whether lines in the label are automatically wrapped.
* See clutter_label_set_line_wrap ().
*
* Return value: %TRUE if the lines of the label are automatically wrapped.
*
* Since: 0.2
*/
gboolean
clutter_label_get_line_wrap (ClutterLabel *label)
{
g_return_val_if_fail (CLUTTER_IS_LABEL (label), FALSE);
return label->priv->wrap;
}
/**
* clutter_label_set_line_wrap_mode:
* @label: a #ClutterLabel
* @wrap_mode: the line wrapping mode
*
* If line wrapping is on (see clutter_label_set_line_wrap()) this controls how
* the line wrapping is done. The default is %PANGO_WRAP_WORD which means
* wrap on word boundaries.
*
* Since: 0.2
**/
void
clutter_label_set_line_wrap_mode (ClutterLabel *label,
PangoWrapMode wrap_mode)
{
g_return_if_fail (CLUTTER_IS_LABEL (label));
if (label->priv->wrap_mode != wrap_mode)
{
label->priv->wrap_mode = wrap_mode;
clutter_label_clear_layout (label);
if (CLUTTER_ACTOR_IS_VISIBLE (CLUTTER_ACTOR(label)))
clutter_actor_queue_redraw (CLUTTER_ACTOR(label));
g_object_notify (G_OBJECT (label), "wrap-mode");
}
}
/**
* clutter_label_get_line_wrap_mode:
* @label: a #ClutterLabel
*
* Returns line wrap mode used by the label. See clutter_label_set_line_wrap_mode ().
*
* Return value: %TRUE if the lines of the label are automatically wrapped.
*
* Since: 0.2
*/
PangoWrapMode
clutter_label_get_line_wrap_mode (ClutterLabel *label)
{
g_return_val_if_fail (CLUTTER_IS_LABEL (label), FALSE);
return label->priv->wrap_mode;
}
/**
* clutter_label_get_layout:
* @label: a #ClutterLabel
*
* Gets the #PangoLayout used to display the label.
* The layout is useful to e.g. convert text positions to
* pixel positions.
* The returned layout is owned by the label so need not be
* freed by the caller.
*
* Return value: the #PangoLayout for this label
*
* Since: 0.2
**/
PangoLayout*
clutter_label_get_layout (ClutterLabel *label)
{
g_return_val_if_fail (CLUTTER_IS_LABEL (label), NULL);
clutter_label_ensure_layout (label, -1);
return label->priv->layout;
}
static void
clutter_label_set_attributes_internal (ClutterLabel *label,
PangoAttrList *attrs)
{
ClutterLabelPrivate *priv;
priv = label->priv;
if (attrs)
pango_attr_list_ref (attrs);
if (priv->attrs)
pango_attr_list_unref (priv->attrs);
if (!priv->use_markup)
{
if (attrs)
pango_attr_list_ref (attrs);
if (priv->effective_attrs)
pango_attr_list_unref (priv->effective_attrs);
priv->effective_attrs = attrs;
}
label->priv->attrs = attrs;
g_object_notify (G_OBJECT (label), "attributes");
}
/**
* clutter_label_set_attributes:
* @label: a #ClutterLabel
* @attrs: a #PangoAttrList
*
* Sets a #PangoAttrList; the attributes in the list are applied to the
* label text. The attributes set with this function will be ignored
* if the "use_markup" property
* is %TRUE.
*
* Since: 0.2
**/
void
clutter_label_set_attributes (ClutterLabel *label,
PangoAttrList *attrs)
{
g_return_if_fail (CLUTTER_IS_LABEL (label));
clutter_label_set_attributes_internal (label, attrs);
clutter_label_clear_layout (label);
if (CLUTTER_ACTOR_IS_VISIBLE (CLUTTER_ACTOR(label)))
clutter_actor_queue_redraw (CLUTTER_ACTOR(label));
}
/**
* clutter_label_get_attributes:
* @label: a #ClutterLabel
*
* Gets the attribute list that was set on the label using
* clutter_label_set_attributes(), if any.
*
* Return value: the attribute list, or %NULL if none was set.
*
* Since: 0.2
**/
PangoAttrList *
clutter_label_get_attributes (ClutterLabel *label)
{
g_return_val_if_fail (CLUTTER_IS_LABEL (label), NULL);
return label->priv->attrs;
}
/**
* clutter_label_set_use_markup:
* @label: a #ClutterLabel
* @setting: %TRUE if the label's text should be parsed for markup.
*
* Sets whether the text of the label contains markup in <link
* linkend="PangoMarkupFormat">Pango's text markup
* language</link>. See clutter_label_set_markup().
**/
void
clutter_label_set_use_markup (ClutterLabel *label,
gboolean setting)
{
g_return_if_fail (CLUTTER_IS_LABEL (label));
if (label->priv->use_markup != setting)
{
label->priv->use_markup = setting;
clutter_label_clear_layout (label);
if (CLUTTER_ACTOR_IS_VISIBLE (CLUTTER_ACTOR(label)))
clutter_actor_queue_redraw (CLUTTER_ACTOR(label));
g_object_notify (G_OBJECT (label), "use-markup");
}
}
/**
* clutter_label_get_use_markup:
* @label: a #ClutterLabel
*
* Returns whether the label's text is interpreted as marked up with
* the <link linkend="PangoMarkupFormat">Pango text markup
* language</link>. See clutter_label_set_use_markup ().
*
* Return value: %TRUE if the label's text will be parsed for markup.
**/
gboolean
clutter_label_get_use_markup (ClutterLabel *label)
{
g_return_val_if_fail (CLUTTER_IS_LABEL (label), FALSE);
return label->priv->use_markup;
}
/**
* clutter_label_set_alignment:
* @label: a #ClutterLabel
* @alignment: A #PangoAlignment
*
* Sets text alignment of the label.
**/
void
clutter_label_set_alignment (ClutterLabel *label,
PangoAlignment alignment)
{
g_return_if_fail (CLUTTER_IS_LABEL (label));
if (label->priv->alignment != alignment)
{
label->priv->alignment = alignment;
clutter_label_clear_layout (label);
if (CLUTTER_ACTOR_IS_VISIBLE (CLUTTER_ACTOR(label)))
clutter_actor_queue_redraw (CLUTTER_ACTOR(label));
g_object_notify (G_OBJECT (label), "alignment");
}
}
/**
* clutter_label_get_alignment:
* @label: a #ClutterLabel
*
* Returns the label's text alignment
*
* Return value: The labels #PangoAlignment
*
* Since 0.2
**/
gboolean
clutter_label_get_alignment (ClutterLabel *label)
{
g_return_val_if_fail (CLUTTER_IS_LABEL (label), FALSE);
return label->priv->alignment;
}

62
clutter/clutter-label.h
View File

@ -31,6 +31,9 @@
#include <clutter/clutter-texture.h> #include <clutter/clutter-texture.h>
#include <clutter/clutter-color.h> #include <clutter/clutter-color.h>
#include <pango/pango.h>
G_BEGIN_DECLS G_BEGIN_DECLS
#define CLUTTER_TYPE_LABEL clutter_label_get_type() #define CLUTTER_TYPE_LABEL clutter_label_get_type()
@ -61,7 +64,7 @@ typedef struct _ClutterLabelPrivate ClutterLabelPrivate;
struct _ClutterLabel struct _ClutterLabel
{ {
ClutterTexture parent; ClutterActor parent;
/*< private >*/ /*< private >*/
ClutterLabelPrivate *priv; ClutterLabelPrivate *priv;
@ -70,7 +73,7 @@ struct _ClutterLabel
struct _ClutterLabelClass struct _ClutterLabelClass
{ {
/*< private >*/ /*< private >*/
ClutterTextureClass parent_class; ClutterActorClass parent_class;
void (*_clutter_label_1) (void); void (*_clutter_label_1) (void);
void (*_clutter_label_2) (void); void (*_clutter_label_2) (void);
@ -80,8 +83,8 @@ struct _ClutterLabelClass
GType clutter_label_get_type (void) G_GNUC_CONST; GType clutter_label_get_type (void) G_GNUC_CONST;
ClutterActor * clutter_label_new (void); ClutterActor *clutter_label_new (void);
ClutterActor * clutter_label_new_with_text (const gchar *font_name, ClutterActor *clutter_label_new_with_text (const gchar *font_name,
const gchar *text); const gchar *text);
void clutter_label_set_text (ClutterLabel *label, void clutter_label_set_text (ClutterLabel *label,
@ -94,12 +97,51 @@ void clutter_label_set_color (ClutterLabel *label,
const ClutterColor *color); const ClutterColor *color);
void clutter_label_get_color (ClutterLabel *label, void clutter_label_get_color (ClutterLabel *label,
ClutterColor *color); ClutterColor *color);
void clutter_label_set_text_extents (ClutterLabel *label,
gint width, void
gint height); clutter_label_set_ellipsize (ClutterLabel *label,
void clutter_label_get_text_extents (ClutterLabel *label, PangoEllipsizeMode mode);
gint *width,
gint *height); PangoEllipsizeMode
clutter_label_get_ellipsize (ClutterLabel *label);
void
clutter_label_set_line_wrap (ClutterLabel *label,
gboolean wrap);
gboolean
clutter_label_get_line_wrap (ClutterLabel *label);
void
clutter_label_set_line_wrap_mode (ClutterLabel *label,
PangoWrapMode wrap_mode);
PangoWrapMode
clutter_label_get_line_wrap_mode (ClutterLabel *label);
PangoLayout*
clutter_label_get_layout (ClutterLabel *label);
void
clutter_label_set_attributes (ClutterLabel *label,
PangoAttrList *attrs);
PangoAttrList*
clutter_label_get_attributes (ClutterLabel *label);
void
clutter_label_set_use_markup (ClutterLabel *label,
gboolean setting);
gboolean
clutter_label_get_use_markup (ClutterLabel *label);
void
clutter_label_set_alignment (ClutterLabel *label,
PangoAlignment alignment);
gboolean
clutter_label_get_alignment (ClutterLabel *label);
G_END_DECLS G_END_DECLS

18
clutter/pango/Makefile.am Normal file
View File

@ -0,0 +1,18 @@
source_c = pangoclutter-font.c \
pangoclutter-fontmap.c \
pangoclutter-render.c
source_h = pangoclutter.h
source_h_priv = pangoclutter-private.h
noinst_LIBRARIES = libpangoclutter.a
libpangoclutter_a_SOURCES = $(source_c) \
$(source_h) \
$(source_h_priv)
INCLUDES = @GCC_FLAGS@ @CLUTTER_CFLAGS@ -I$(top_srcdir)
pangoclutterheadersdir = $(includedir)/clutter-@CLUTTER_MAJORMINOR@/clutter
pangoclutterheaders_HEADERS = $(source_h)

467
clutter/pango/pangoclutter-font.c Normal file
View File

@ -0,0 +1,467 @@
/* Pango
* Clutter Freetype2 handling
*
* Copyright (C) 1999 Red Hat Software
* Copyright (C) 2000 Tor Lillqvist
* Copyright (C) 2006 Marc Lehmann <pcg@goof.com>
*
* This file is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This file is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#define PANGO_ENABLE_BACKEND
#include <string.h>
#include <stdlib.h>
#include <math.h>
#include <glib.h>
#include <glib/gprintf.h>
#include "pangoclutter.h"
#include "pangoclutter-private.h"
#include <pango/pangofc-font.h>
#include <pango/pangofc-fontmap.h>
#define PANGO_CLUTTER_FONT_CLASS(klass) \
(G_TYPE_CHECK_CLASS_CAST ((klass), \
PANGO_TYPE_CLUTTER_FONT, \
PangoClutterFontClass))
#define PANGO_CLUTTER_IS_FONT_CLASS(klass) \
(G_TYPE_CHECK_CLASS_TYPE ((klass), PANGO_TYPE_CLUTTER_FONT))
#define PANGO_CLUTTER_FONT_GET_CLASS(obj) \
(G_TYPE_INSTANCE_GET_CLASS ((obj), \
PANGO_TYPE_CLUTTER_FONT, \
PangoClutterFontClass))
typedef struct _PangoClutterFontClass PangoClutterFontClass;
struct _PangoClutterFontClass
{
PangoFcFontClass parent_class;
};
static void pango_clutter_font_finalize (GObject *object);
static void pango_clutter_font_get_glyph_extents (PangoFont *font,
PangoGlyph glyph,
PangoRectangle *ink_rect,
PangoRectangle *logical_rect);
static FT_Face pango_clutter_font_real_lock_face (PangoFcFont *font);
static void pango_clutter_font_real_unlock_face (PangoFcFont *font);
PangoClutterFont *
_pango_clutter_font_new (PangoClutterFontMap *fontmap_, FcPattern *pattern)
{
PangoFontMap *fontmap = PANGO_FONT_MAP (fontmap_);
PangoClutterFont *font;
double d;
g_return_val_if_fail (fontmap != NULL, NULL);
g_return_val_if_fail (pattern != NULL, NULL);
font = (PangoClutterFont *)g_object_new (PANGO_TYPE_CLUTTER_FONT,
"pattern", pattern,
NULL);
if (FcPatternGetDouble (pattern, FC_PIXEL_SIZE, 0, &d) == FcResultMatch)
font->size = d * PANGO_SCALE;
return font;
}
static void
load_fallback_face (PangoClutterFont *font, const char *original_file)
{
PangoFcFont *fcfont = PANGO_FC_FONT (font);
FcPattern *sans;
FcPattern *matched;
FcResult result;
FT_Error error;
FcChar8 *filename2 = NULL;
gchar *name;
int id;
sans = FcPatternBuild
(NULL,
FC_FAMILY, FcTypeString, "sans",
FC_PIXEL_SIZE, FcTypeDouble, (double)font->size / PANGO_SCALE,
NULL);
matched = FcFontMatch (NULL, sans, &result);
if (FcPatternGetString (matched, FC_FILE, 0, &filename2) != FcResultMatch)
goto bail1;
if (FcPatternGetInteger (matched, FC_INDEX, 0, &id) != FcResultMatch)
goto bail1;
error = FT_New_Face (_pango_clutter_font_map_get_library (fcfont->fontmap),
(char *) filename2, id, &font->face);
if (error)
{
bail1:
name = pango_font_description_to_string (fcfont->description);
g_warning ("Unable to open font file %s for font %s, exiting\n",
filename2, name);
exit (1);
}
else
{
name = pango_font_description_to_string (fcfont->description);
g_warning ("Unable to open font file %s for font %s, falling back to %s\n", original_file, name, filename2);
g_free (name);
}
FcPatternDestroy (sans);
FcPatternDestroy (matched);
}
static void
set_transform (PangoClutterFont *font)
{
PangoFcFont *fcfont = (PangoFcFont *)font;
FcMatrix *fc_matrix;
if (FcPatternGetMatrix (fcfont->font_pattern,
FC_MATRIX,
0,
&fc_matrix) == FcResultMatch)
{
FT_Matrix ft_matrix;
ft_matrix.xx = 0x10000L * fc_matrix->xx;
ft_matrix.yy = 0x10000L * fc_matrix->yy;
ft_matrix.xy = 0x10000L * fc_matrix->xy;
ft_matrix.yx = 0x10000L * fc_matrix->yx;
FT_Set_Transform (font->face, &ft_matrix, NULL);
}
}
FT_Face
pango_clutter_font_get_face (PangoFont *font)
{
PangoClutterFont *glfont = (PangoClutterFont *)font;
PangoFcFont *fcfont = (PangoFcFont *)font;
FcPattern *pattern;
FcChar8 *filename;
FcBool antialias, hinting, autohint;
FT_Error error;
int id;
pattern = fcfont->font_pattern;
if (!glfont->face)
{
glfont->load_flags = 0;
/* disable antialiasing if requested */
if (FcPatternGetBool (pattern, FC_ANTIALIAS,
0, &antialias) != FcResultMatch)
antialias = FcTrue;
glfont->load_flags |= FT_LOAD_NO_BITMAP;
/* disable hinting if requested */
if (FcPatternGetBool (pattern, FC_HINTING,
0, &hinting) != FcResultMatch)
hinting = FcTrue;
if (!hinting)
glfont->load_flags |= FT_LOAD_NO_HINTING;
/* force autohinting if requested */
if (FcPatternGetBool (pattern, FC_AUTOHINT,
0, &autohint) != FcResultMatch)
autohint = FcFalse;
if (autohint)
glfont->load_flags |= FT_LOAD_FORCE_AUTOHINT;
if (FcPatternGetString (pattern, FC_FILE, 0, &filename) != FcResultMatch)
goto bail0;
if (FcPatternGetInteger (pattern, FC_INDEX, 0, &id) != FcResultMatch)
goto bail0;
error
= FT_New_Face (_pango_clutter_font_map_get_library (fcfont->fontmap),
(char *)filename, id, &glfont->face);
if (error != FT_Err_Ok)
{
bail0:
load_fallback_face (glfont, (char *)filename);
}
g_assert (glfont->face);
set_transform (glfont);
error = FT_Set_Char_Size (glfont->face,
PANGO_PIXELS_26_6 (glfont->size),
PANGO_PIXELS_26_6 (glfont->size),
0, 0);
if (error)
g_warning ("Error in FT_Set_Char_Size: %d", error);
}
return glfont->face;
}
G_DEFINE_TYPE (PangoClutterFont, pango_clutter_font, PANGO_TYPE_FC_FONT)
static void
pango_clutter_font_init (PangoClutterFont *font)
{
font->face = NULL;
font->size = 0;
font->glyph_info = g_hash_table_new (NULL, NULL);
}
static void
pango_clutter_font_class_init (PangoClutterFontClass *class)
{
GObjectClass *object_class = G_OBJECT_CLASS (class);
PangoFontClass *font_class = PANGO_FONT_CLASS (class);
PangoFcFontClass *fc_font_class = PANGO_FC_FONT_CLASS (class);
object_class->finalize = pango_clutter_font_finalize;
font_class->get_glyph_extents = pango_clutter_font_get_glyph_extents;
fc_font_class->lock_face = pango_clutter_font_real_lock_face;
fc_font_class->unlock_face = pango_clutter_font_real_unlock_face;
}
static PangoClutterGlyphInfo *
pango_clutter_font_get_glyph_info (PangoFont *font_,
PangoGlyph glyph,
gboolean create)
{
PangoClutterFont *font = (PangoClutterFont *)font_;
PangoFcFont *fcfont = (PangoFcFont *)font;
PangoClutterGlyphInfo *info;
info = g_hash_table_lookup (font->glyph_info, GUINT_TO_POINTER (glyph));
if ((info == NULL) && create)
{
info = g_slice_new0 (PangoClutterGlyphInfo);
pango_fc_font_get_raw_extents (fcfont, font->load_flags,
glyph,
&info->ink_rect,
&info->logical_rect);
g_hash_table_insert (font->glyph_info, GUINT_TO_POINTER(glyph), info);
}
return info;
}
PangoGlyph
pango_clutter_get_unknown_glyph (PangoFont *font)
{
FT_Face face = pango_clutter_font_get_face (font);
if (face && FT_IS_SFNT (face))
/* TrueType fonts have an 'unknown glyph' box on glyph index 0 */
return 0;
else
return PANGO_GLYPH_EMPTY;
}
static void
pango_clutter_font_get_glyph_extents (PangoFont *font,
PangoGlyph glyph,
PangoRectangle *ink_rect,
PangoRectangle *logical_rect)
{
PangoClutterGlyphInfo *info;
if (glyph == PANGO_GLYPH_EMPTY)
{
if (ink_rect)
ink_rect->x = ink_rect->y =
ink_rect->height = ink_rect->width = 0;
if (logical_rect)
logical_rect->x = logical_rect->y =
logical_rect->height = logical_rect->width = 0;
return;
}
if (glyph & PANGO_GLYPH_UNKNOWN_FLAG)
{
glyph = pango_clutter_get_unknown_glyph (font);
if (glyph == PANGO_GLYPH_EMPTY)
{
/* No unknown glyph found for the font, draw a box */
PangoFontMetrics *metrics = pango_font_get_metrics (font, NULL);
if (metrics)
{
if (ink_rect)
{
ink_rect->x = PANGO_SCALE;
ink_rect->width = metrics->approximate_char_width - 2 * PANGO_SCALE;
ink_rect->y = - (metrics->ascent - PANGO_SCALE);
ink_rect->height = metrics->ascent + metrics->descent - 2 * PANGO_SCALE;
}
if (logical_rect)
{
logical_rect->x = 0;
logical_rect->width = metrics->approximate_char_width;
logical_rect->y = -metrics->ascent;
logical_rect->height = metrics->ascent + metrics->descent;
}
pango_font_metrics_unref (metrics);
}
else
{
if (ink_rect)
ink_rect->x = ink_rect->y =
ink_rect->height = ink_rect->width = 0;
if (logical_rect)
logical_rect->x = logical_rect->y =
logical_rect->height = logical_rect->width = 0;
}
return;
}
}
info = pango_clutter_font_get_glyph_info (font, glyph, TRUE);
if (ink_rect)
*ink_rect = info->ink_rect;
if (logical_rect)
*logical_rect = info->logical_rect;
}
int
pango_clutter_font_get_kerning (PangoFont *font,
PangoGlyph left,
PangoGlyph right)
{
PangoFcFont *fc_font = PANGO_FC_FONT (font);
FT_Face face;
FT_Error error;
FT_Vector kerning;
face = pango_fc_font_lock_face (fc_font);
if (!face)
return 0;
if (!FT_HAS_KERNING (face))
{
pango_fc_font_unlock_face (fc_font);
return 0;
}
error = FT_Get_Kerning (face, left, right, ft_kerning_default, &kerning);
if (error != FT_Err_Ok)
{
pango_fc_font_unlock_face (fc_font);
return 0;
}
pango_fc_font_unlock_face (fc_font);
return PANGO_UNITS_26_6 (kerning.x);
}
static FT_Face
pango_clutter_font_real_lock_face (PangoFcFont *font)
{
return pango_clutter_font_get_face ((PangoFont *)font);
}
static void
pango_clutter_font_real_unlock_face (PangoFcFont *font)
{
}
static gboolean
pango_clutter_free_glyph_info_callback (gpointer key,
gpointer value,
gpointer data)
{
PangoClutterFont *font = PANGO_CLUTTER_FONT (data);
PangoClutterGlyphInfo *info = value;
if (font->glyph_cache_destroy && info->cached_glyph)
(*font->glyph_cache_destroy) (info->cached_glyph);
g_slice_free (PangoClutterGlyphInfo, info);
return TRUE;
}
static void
pango_clutter_font_finalize (GObject *object)
{
PangoClutterFont *font = (PangoClutterFont *)object;
if (font->face)
{
FT_Done_Face (font->face);
font->face = NULL;
}
g_hash_table_foreach_remove (font->glyph_info,
pango_clutter_free_glyph_info_callback, object);
g_hash_table_destroy (font->glyph_info);
G_OBJECT_CLASS (pango_clutter_font_parent_class)->finalize (object);
}
PangoCoverage*
pango_clutter_font_get_coverage (PangoFont *font, PangoLanguage *language)
{
return pango_font_get_coverage (font, language);
}
void*
_pango_clutter_font_get_cache_glyph_data (PangoFont *font, int glyph_index)
{
PangoClutterGlyphInfo *info;
info = pango_clutter_font_get_glyph_info (font, glyph_index, FALSE);
return info ? info->cached_glyph : 0;
}
void
_pango_clutter_font_set_cache_glyph_data (PangoFont *font,
int glyph_index,
void *cached_glyph)
{
PangoClutterGlyphInfo *info;
info = pango_clutter_font_get_glyph_info (font, glyph_index, TRUE);
info->cached_glyph = cached_glyph;
}
void
_pango_clutter_font_set_glyph_cache_destroy (PangoFont *font,
GDestroyNotify destroy_notify)
{
PANGO_CLUTTER_FONT (font)->glyph_cache_destroy = destroy_notify;
}

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/* Pango
* Clutter fonts handling
*
* Copyright (C) 2000 Red Hat Software
* Copyright (C) 2000 Tor Lillqvist
* Copyright (C) 2006 Marc Lehmann <pcg@goof.com>
*
* This file is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This file is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#include <glib.h>
#include <stdlib.h>
#include <string.h>
#include <errno.h>
#include "pangoclutter.h"
#include "pangoclutter-private.h"
#include <pango/pangofc-font.h>
#include <pango/pangofc-fontmap.h>
struct _PangoClutterFontMap
{
PangoFcFontMap parent_instance;
FT_Library library;
/* Function to call on prepared patterns to do final
* config tweaking.
*/
PangoClutterSubstituteFunc substitute_func;
gpointer substitute_data;
GDestroyNotify substitute_destroy;
PangoRenderer *renderer;
};
struct _PangoClutterFontMapClass
{
PangoFcFontMapClass parent_class;
};
G_DEFINE_TYPE (PangoClutterFontMap, pango_clutter_font_map, PANGO_TYPE_FC_FONT_MAP)
static void
pango_clutter_font_map_finalize (GObject *object)
{
PangoClutterFontMap *fontmap = PANGO_CLUTTER_FONT_MAP (object);
if (fontmap->renderer)
g_object_unref (fontmap->renderer);
if (fontmap->substitute_destroy)
fontmap->substitute_destroy (fontmap->substitute_data);
FT_Done_FreeType (fontmap->library);
G_OBJECT_CLASS (pango_clutter_font_map_parent_class)->finalize (object);
}
PangoFontMap *
pango_clutter_font_map_new (void)
{
PangoClutterFontMap *fontmap;
FT_Error error;
/* Make sure that the type system is initialized */
g_type_init ();
fontmap = g_object_new (PANGO_TYPE_CLUTTER_FONT_MAP, NULL);
error = FT_Init_FreeType (&fontmap->library);
if (error != FT_Err_Ok)
g_critical ("pango_clutter_font_map_new: Could not initialize freetype");
return (PangoFontMap *)fontmap;
}
void
pango_clutter_font_map_set_default_substitute (PangoClutterFontMap *fontmap,
PangoClutterSubstituteFunc func,
gpointer data,
GDestroyNotify notify)
{
if (fontmap->substitute_destroy)
fontmap->substitute_destroy (fontmap->substitute_data);
fontmap->substitute_func = func;
fontmap->substitute_data = data;
fontmap->substitute_destroy = notify;
pango_fc_font_map_cache_clear (PANGO_FC_FONT_MAP (fontmap));
}
/**
* pango_clutter_font_map_substitute_changed:
* @fontmap: a #PangoClutterFontmap
*
* Call this function any time the results of the
* default substitution function set with
* pango_clutter_font_map_set_default_substitute() change.
* That is, if your subsitution function will return different
* results for the same input pattern, you must call this function.
*
* Since: 1.2
**/
void
pango_clutter_font_map_substitute_changed (PangoClutterFontMap *fontmap)
{
pango_fc_font_map_cache_clear (PANGO_FC_FONT_MAP (fontmap));
}
/**
* pango_clutter_font_map_create_context:
* @fontmap: a #PangoClutterFontmap
*
* Create a #PangoContext for the given fontmap.
*
* Return value: the newly created context; free with g_object_unref().
*
* Since: 1.2
**/
PangoContext *
pango_clutter_font_map_create_context (PangoClutterFontMap *fontmap)
{
g_return_val_if_fail (PANGO_CLUTTER_IS_FONT_MAP (fontmap), NULL);
return pango_fc_font_map_create_context (PANGO_FC_FONT_MAP (fontmap));
}
FT_Library
_pango_clutter_font_map_get_library (PangoFontMap *fontmap_)
{
PangoClutterFontMap *fontmap = (PangoClutterFontMap *)fontmap_;
return fontmap->library;
}
/**
* _pango_clutter_font_map_get_renderer:
* @fontmap: a #PangoClutterFontmap
*
* Gets the singleton PangoClutterRenderer for this fontmap.
*
* Return value:
**/
PangoRenderer *
_pango_clutter_font_map_get_renderer (PangoClutterFontMap *fontmap)
{
if (!fontmap->renderer)
fontmap->renderer = g_object_new (PANGO_TYPE_CLUTTER_RENDERER, NULL);
return fontmap->renderer;
}
static void
pango_clutter_font_map_default_substitute (PangoFcFontMap *fcfontmap,
FcPattern *pattern)
{
PangoClutterFontMap *fontmap = PANGO_CLUTTER_FONT_MAP (fcfontmap);
FcConfigSubstitute (NULL, pattern, FcMatchPattern);
if (fontmap->substitute_func)
fontmap->substitute_func (pattern, fontmap->substitute_data);
#if 0
FcValue v;
if (FcPatternGet (pattern, FC_DPI, 0, &v) == FcResultNoMatch)
FcPatternAddDouble (pattern, FC_DPI, fontmap->dpi_y);
#endif
FcDefaultSubstitute (pattern);
}
static PangoFcFont *
pango_clutter_font_map_new_font (PangoFcFontMap *fcfontmap,
FcPattern *pattern)
{
return (PangoFcFont *)_pango_clutter_font_new (PANGO_CLUTTER_FONT_MAP (fcfontmap), pattern);
}
static void
pango_clutter_font_map_class_init (PangoClutterFontMapClass *class)
{
GObjectClass *gobject_class = G_OBJECT_CLASS (class);
PangoFcFontMapClass *fcfontmap_class = PANGO_FC_FONT_MAP_CLASS (class);
gobject_class->finalize = pango_clutter_font_map_finalize;
fcfontmap_class->default_substitute = pango_clutter_font_map_default_substitute;
fcfontmap_class->new_font = pango_clutter_font_map_new_font;
}
static void
pango_clutter_font_map_init (PangoClutterFontMap *fontmap)
{
fontmap->library = NULL;
}

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/* Pango
* pangoclutter-private.h: private symbols for Clutter backend
*
* Copyright (C) 2006 Matthew Allum <mallum@o-hand.com>
*
* This file is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This file is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#ifndef __PANGOCLUTTER_PRIVATE_H__
#define __PANGOCLUTTER_PRIVATE_H__
#include "pangoclutter.h"
#include <pango/pango-renderer.h>
#include <glib-object.h>
#include <pango/pangofc-decoder.h>
/* Defines duped */
#define PANGO_SCALE_26_6 (PANGO_SCALE / (1<<6))
#define PANGO_PIXELS_26_6(d) \
(((d) >= 0) ? \
((d) + PANGO_SCALE_26_6 / 2) / PANGO_SCALE_26_6 : \
((d) - PANGO_SCALE_26_6 / 2) / PANGO_SCALE_26_6)
#define PANGO_UNITS_26_6(d) (PANGO_SCALE_26_6 * (d))
#define PANGO_TYPE_CLUTTER_FONT (pango_clutter_font_get_type ())
#define PANGO_CLUTTER_FONT(object) \
(G_TYPE_CHECK_INSTANCE_CAST ((object), \
PANGO_TYPE_CLUTTER_FONT, \
PangoClutterFont))
#define PANGO_CLUTTER_IS_FONT(object) \
(G_TYPE_CHECK_INSTANCE_TYPE ((object), PANGO_TYPE_CLUTTER_FONT))
typedef struct _PangoClutterFont PangoClutterFont;
typedef struct _PangoClutterGlyphInfo PangoClutterGlyphInfo;
struct _PangoClutterFont
{
PangoFcFont font;
FT_Face face;
int load_flags;
int size;
GSList *metrics_by_lang;
GHashTable *glyph_info;
GDestroyNotify glyph_cache_destroy;
};
struct _PangoClutterGlyphInfo
{
PangoRectangle logical_rect;
PangoRectangle ink_rect;
void *cached_glyph;
};
PangoGlyph
pango_clutter_get_unknown_glyph (PangoFont *font);
GType pango_clutter_font_get_type (void);
PangoClutterFont *
_pango_clutter_font_new (PangoClutterFontMap *fontmap,
FcPattern *pattern);
FT_Face
pango_clutter_font_get_face (PangoFont *font);
FT_Library
_pango_clutter_font_map_get_library (PangoFontMap *fontmap);
void *
_pango_clutter_font_get_cache_glyph_data (PangoFont *font,
int glyph_index);
void
_pango_clutter_font_set_cache_glyph_data (PangoFont *font,
int glyph_index,
void *cached_glyph);
void
_pango_clutter_font_set_glyph_cache_destroy (PangoFont *font,
GDestroyNotify destroy_notify);
/* Renderer */
typedef struct _PangoClutterRenderer PangoClutterRenderer;
#define PANGO_TYPE_CLUTTER_RENDERER (pango_clutter_renderer_get_type())
#define PANGO_CLUTTER_RENDERER(object) \
(G_TYPE_CHECK_INSTANCE_CAST ((object), \
PANGO_TYPE_CLUTTER_RENDERER, \
PangoClutterRenderer))
#define PANGO_IS_CLUTTER_RENDERER(object) \
(G_TYPE_CHECK_INSTANCE_TYPE ((object), PANGO_TYPE_CLUTTER_RENDERER))
GType pango_clutter_renderer_get_type (void);
PangoRenderer *
_pango_clutter_font_map_get_renderer (PangoClutterFontMap *fontmap);
/* HACK make this public to avoid a mass of re-implementation*/
void
pango_fc_font_get_raw_extents (PangoFcFont *font,
FT_Int32 load_flags,
PangoGlyph glyph,
PangoRectangle *ink_rect,
PangoRectangle *logical_rect);
#endif

584
clutter/pango/pangoclutter-render.c Normal file
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/* Pango
* Rendering routines to Clutter
*
* Copyright (C) 2006 Matthew Allum <mallum@o-hand.com>
* Copyright (C) 2006 Marc Lehmann <pcg@goof.com>
* Copyright (C) 2004 Red Hat Software
* Copyright (C) 2000 Tor Lillqvist
*
* This file is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This file is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#include <math.h>
#include "pangoclutter.h"
#include "pangoclutter-private.h"
/*
* Texture cache support code
*/
#define TC_WIDTH 256
#define TC_HEIGHT 256
#define TC_ROUND 4
typedef struct {
GLuint name;
int x, y, w, h;
} tc_area;
typedef struct tc_texture {
struct tc_texture *next;
GLuint name;
int avail;
} tc_texture;
typedef struct tc_slice {
GLuint name;
int avail, y;
} tc_slice;
static int tc_generation;
static tc_slice slices[TC_HEIGHT / TC_ROUND];
static tc_texture *first_texture;
static void
tc_clear ()
{
int i;
for (i = TC_HEIGHT / TC_ROUND; i--; )
slices [i].name = 0;
while (first_texture)
{
tc_texture *next = first_texture->next;
glDeleteTextures (1, &first_texture->name);
g_slice_free (tc_texture, first_texture);
first_texture = next;
}
printf("freeing textures\n");
++tc_generation;
}
static void
tc_get (tc_area *area, int width, int height)
{
int slice_height = MIN (height + TC_ROUND - 1, TC_HEIGHT) & ~(TC_ROUND - 1);
tc_slice *slice = slices + slice_height / TC_ROUND;
area->w = width;
area->h = height;
width = MIN (width, TC_WIDTH);
if (!slice->name || slice->avail < width)
{
/* try to find a texture with enough space */
tc_texture *tex, *match = 0;
for (tex = first_texture; tex; tex = tex->next)
if (tex->avail >= slice_height && (!match || match->avail > tex->avail))
match = tex;
/* create a new texture if necessary */
if (!match)
{
CLUTTER_DBG("creating new texture %i x %i\n", TC_WIDTH, TC_HEIGHT);
match = g_slice_new (tc_texture);
match->next = first_texture;
first_texture = match;
glGenTextures (1, &match->name);
match->avail = TC_HEIGHT;
glBindTexture (GL_TEXTURE_2D, match->name);
glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
glTexImage2D (GL_TEXTURE_2D, 0, GL_ALPHA,
TC_WIDTH, TC_HEIGHT, 0, GL_ALPHA, GL_UNSIGNED_BYTE, 0);
}
match->avail -= slice_height;
slice->name = match->name;
slice->avail = TC_WIDTH;
slice->y = match->avail;
}
slice->avail -= width;
area->name = slice->name;
area->x = slice->avail;
area->y = slice->y;
}
static void
tc_put (tc_area *area)
{
/* our management is too primitive to support this operation yet */
}
/*******************/
#define PANGO_CLUTTER_RENDERER_CLASS(klass) \
(G_TYPE_CHECK_CLASS_CAST ((klass), \
PANGO_TYPE_CLUTTER_RENDERER, \
PangoClutterRendererClass))
#define PANGO_IS_CLUTTER_RENDERER_CLASS(klass) \
(G_TYPE_CHECK_CLASS_TYPE ((klass), PANGO_TYPE_CLUTTER_RENDERER))
#define PANGO_CLUTTER_RENDERER_GET_CLASS(obj) \
(G_TYPE_INSTANCE_GET_CLASS ((obj), \
PANGO_TYPE_CLUTTER_RENDERER, \
PangoClutterRendererClass))
typedef struct {
PangoRendererClass parent_class;
} PangoClutterRendererClass;
struct _PangoClutterRenderer
{
PangoRenderer parent_instance;
ClutterColor color;
int flags;
GLuint curtex; /* current texture */
};
G_DEFINE_TYPE (PangoClutterRenderer, \
pango_clutter_renderer, \
PANGO_TYPE_RENDERER)
typedef struct
{
guint8 *bitmap;
int width, stride, height, top, left;
} Glyph;
static void *
temp_buffer (size_t size)
{
static char *buffer;
static size_t alloc;
if (size > alloc)
{
size = (size + 4095) & ~4095;
free (buffer);
alloc = size;
buffer = malloc (size);
}
return buffer;
}
static void
render_box (Glyph *glyph, int width, int height, int top)
{
int i;
int left = 0;
if (height > 2)
{
height -= 2;
top++;
}
if (width > 2)
{
width -= 2;
left++;
}
glyph->stride = (width + 3) & ~3;
glyph->width = width;
glyph->height = height;
glyph->top = top;
glyph->left = left;
glyph->bitmap = temp_buffer (width * height);
memset (glyph->bitmap, 0, glyph->stride * height);
for (i = width; i--; )
glyph->bitmap [i]
= glyph->bitmap [i + (height - 1) * glyph->stride] = 0xff;
for (i = height; i--; )
glyph->bitmap [i * glyph->stride]
= glyph->bitmap [i * glyph->stride + (width - 1)] = 0xff;
}
static void
font_render_glyph (Glyph *glyph, PangoFont *font, int glyph_index)
{
FT_Face face;
if (glyph_index & PANGO_GLYPH_UNKNOWN_FLAG)
{
PangoFontMetrics *metrics;
if (!font)
goto generic_box;
metrics = pango_font_get_metrics (font, NULL);
if (!metrics)
goto generic_box;
render_box (glyph, PANGO_PIXELS (metrics->approximate_char_width),
PANGO_PIXELS (metrics->ascent + metrics->descent),
PANGO_PIXELS (metrics->ascent));
pango_font_metrics_unref (metrics);
return;
}
face = pango_clutter_font_get_face (font);
if (face)
{
PangoClutterFont *glfont = (PangoClutterFont *)font;
FT_Load_Glyph (face, glyph_index, glfont->load_flags);
FT_Render_Glyph (face->glyph, ft_render_mode_normal);
glyph->width = face->glyph->bitmap.width;
glyph->stride = face->glyph->bitmap.pitch;
glyph->height = face->glyph->bitmap.rows;
glyph->top = face->glyph->bitmap_top;
glyph->left = face->glyph->bitmap_left;
glyph->bitmap = face->glyph->bitmap.buffer;
}
else
generic_box:
render_box (glyph, PANGO_UNKNOWN_GLYPH_WIDTH,
PANGO_UNKNOWN_GLYPH_HEIGHT, PANGO_UNKNOWN_GLYPH_HEIGHT);
}
typedef struct glyph_info
{
tc_area tex;
int left, top;
int generation;
}
glyph_info;
static void
free_glyph_info (glyph_info *g)
{
tc_put (&g->tex);
g_slice_free (glyph_info, g);
}
static void
draw_glyph (PangoRenderer *renderer_,
PangoFont *font,
PangoGlyph glyph,
double x,
double y)
{
PangoClutterRenderer *renderer = PANGO_CLUTTER_RENDERER (renderer_);
glyph_info *g;
float x1, y1, x2, y2;
if (glyph & PANGO_GLYPH_UNKNOWN_FLAG)
{
glyph = pango_clutter_get_unknown_glyph (font);
if (glyph == PANGO_GLYPH_EMPTY)
glyph = PANGO_GLYPH_UNKNOWN_FLAG;
}
g = _pango_clutter_font_get_cache_glyph_data (font, glyph);
if (!g || g->generation != tc_generation)
{
Glyph bm;
font_render_glyph (&bm, font, glyph);
if (g)
g->generation = tc_generation;
else
{
g = g_slice_new (glyph_info);
_pango_clutter_font_set_glyph_cache_destroy
(font, (GDestroyNotify)free_glyph_info);
_pango_clutter_font_set_cache_glyph_data (font, glyph, g);
}
if (renderer->curtex)
glEnd ();
tc_get (&g->tex, bm.width, bm.height);
g->left = bm.left;
g->top = bm.top;
CLUTTER_DBG("cache fail; subimage2d %i\n", glyph);
glBindTexture (GL_TEXTURE_2D, g->tex.name);
glPixelStorei (GL_UNPACK_ROW_LENGTH, bm.stride);
glPixelStorei (GL_UNPACK_ALIGNMENT, 1);
glTexSubImage2D (GL_TEXTURE_2D,
0,
g->tex.x,
g->tex.y,
bm.width,
bm.height,
GL_ALPHA,
GL_UNSIGNED_BYTE,
bm.bitmap);
glPixelStorei (GL_UNPACK_ROW_LENGTH, 0);
glPixelStorei (GL_UNPACK_ALIGNMENT, 4);
renderer->curtex = g->tex.name;
glBegin (GL_QUADS);
}
else CLUTTER_DBG("cache succsess %i\n", glyph);
x += g->left;
y -= g->top;
x1 = g->tex.x * (1. / TC_WIDTH );
y1 = g->tex.y * (1. / TC_HEIGHT);
x2 = g->tex.w * (1. / TC_WIDTH ) + x1;
y2 = g->tex.h * (1. / TC_HEIGHT) + y1;
if (g->tex.name != renderer->curtex)
{
if (renderer->curtex)
glEnd ();
glBindTexture (GL_TEXTURE_2D, g->tex.name);
renderer->curtex = g->tex.name;
glBegin (GL_QUADS);
}
glTexCoord2f (x1, y1); glVertex2i (x , y );
glTexCoord2f (x2, y1); glVertex2i (x + g->tex.w, y );
glTexCoord2f (x2, y2); glVertex2i (x + g->tex.w, y + g->tex.h);
glTexCoord2f (x1, y2); glVertex2i (x , y + g->tex.h);
}
static void
draw_trapezoid (PangoRenderer *renderer_,
PangoRenderPart part,
double y1,
double x11,
double x21,
double y2,
double x12,
double x22)
{
PangoClutterRenderer *renderer = (PangoClutterRenderer *)renderer_;
if (renderer->curtex)
{
glEnd ();
renderer->curtex = 0;
}
glDisable (GL_TEXTURE_2D);
glBegin (GL_QUADS);
glVertex2d (x11, y1);
glVertex2d (x21, y1);
glVertex2d (x22, y2);
glVertex2d (x12, y2);
glEnd ();
glEnable (GL_TEXTURE_2D);
}
void
pango_clutter_render_layout_subpixel (PangoLayout *layout,
int x,
int y,
ClutterColor *color,
int flags)
{
PangoContext *context;
PangoFontMap *fontmap;
PangoRenderer *renderer;
context = pango_layout_get_context (layout);
fontmap = pango_context_get_font_map (context);
renderer = _pango_clutter_font_map_get_renderer
(PANGO_CLUTTER_FONT_MAP (fontmap));
memcpy (&(PANGO_CLUTTER_RENDERER (renderer)->color),
color, sizeof(ClutterColor));
pango_renderer_draw_layout (renderer, layout, x, y);
}
void
pango_clutter_render_layout (PangoLayout *layout,
int x,
int y,
ClutterColor *color,
int flags)
{
pango_clutter_render_layout_subpixel (layout,
x * PANGO_SCALE,
y * PANGO_SCALE,
color,
flags);
}
void
pango_clutter_render_layout_line (PangoLayoutLine *line,
int x,
int y,
ClutterColor *color)
{
PangoContext *context;
PangoFontMap *fontmap;
PangoRenderer *renderer;
context = pango_layout_get_context (line->layout);
fontmap = pango_context_get_font_map (context);
renderer = _pango_clutter_font_map_get_renderer
(PANGO_CLUTTER_FONT_MAP (fontmap));
memcpy (&(PANGO_CLUTTER_RENDERER (renderer)->color),
color, sizeof(ClutterColor));
pango_renderer_draw_layout_line (renderer, line, x, y);
}
void
pango_clutter_render_clear_caches (void)
{
tc_clear();
}
static void
pango_clutter_renderer_init (PangoClutterRenderer *renderer)
{
memset (&renderer->color, 0xff, sizeof(ClutterColor));
}
static void
prepare_run (PangoRenderer *renderer, PangoLayoutRun *run)
{
PangoClutterRenderer *glrenderer = (PangoClutterRenderer *)renderer;
PangoColor *fg = 0;
GSList *l;
unsigned char r, g, b, a;
renderer->underline = PANGO_UNDERLINE_NONE;
renderer->strikethrough = FALSE;
for (l = run->item->analysis.extra_attrs; l; l = l->next)
{
PangoAttribute *attr = l->data;
switch (attr->klass->type)
{
case PANGO_ATTR_UNDERLINE:
renderer->underline = ((PangoAttrInt *)attr)->value;
break;
case PANGO_ATTR_STRIKETHROUGH:
renderer->strikethrough = ((PangoAttrInt *)attr)->value;
break;
case PANGO_ATTR_FOREGROUND:
fg = &((PangoAttrColor *)attr)->color;
break;
default:
break;
}
}
if (fg)
{
r = fg->red * (255.f / 65535.f);
g = fg->green * (255.f / 65535.f);
b = fg->blue * (255.f / 65535.f);
}
else
{
r = glrenderer->color.red;
g = glrenderer->color.green;
b = glrenderer->color.blue;
}
a = glrenderer->color.alpha;
if (glrenderer->flags & FLAG_INVERSE)
{
r ^= 0xffU;
g ^= 0xffU;
b ^= 0xffU;
}
glColor4ub (r, g, b, a);
}
static void
draw_begin (PangoRenderer *renderer_)
{
PangoClutterRenderer *renderer = (PangoClutterRenderer *)renderer_;
renderer->curtex = 0;
glEnable (GL_TEXTURE_2D);
glTexEnvi (GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
glEnable (GL_BLEND);
#if 0
gl_BlendFuncSeparate (GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA,
GL_ONE , GL_ONE_MINUS_SRC_ALPHA);
#endif
glBlendFunc (GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
#if 0
glEnable (GL_ALPHA_TEST);
glAlphaFunc (GL_GREATER, 0.01f);
#endif
}
static void
draw_end (PangoRenderer *renderer_)
{
PangoClutterRenderer *renderer = (PangoClutterRenderer *)renderer_;
if (renderer->curtex)
glEnd ();
glDisable (GL_ALPHA_TEST);
glDisable (GL_BLEND);
glDisable (GL_TEXTURE_2D);
}
static void
pango_clutter_renderer_class_init (PangoClutterRendererClass *klass)
{
PangoRendererClass *renderer_class = PANGO_RENDERER_CLASS (klass);
renderer_class->draw_glyph = draw_glyph;
renderer_class->draw_trapezoid = draw_trapezoid;
renderer_class->prepare_run = prepare_run;
renderer_class->begin = draw_begin;
renderer_class->end = draw_end;
}

97
clutter/pango/pangoclutter.h Normal file
View File

@ -0,0 +1,97 @@
/* Pango
* pangoclutter.h: Clutter/Freetype2 backend
*
* Copyright (C) 1999 Red Hat Software
* Copyright (C) 2000 Tor Lillqvist
* Copyright (C) 2006 Marc Lehmann <pcg@goof.com>
*
* This file is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This file is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#ifndef PANGOCLUTTER_H__
#define PANGOCLUTTER_H__
#define PANGO_ENABLE_BACKEND
#define G_DISABLE_CAST_CHECKS
#include <glib-object.h>
#include <clutter/clutter.h>
#include <pango/pango.h>
#include <fontconfig/fontconfig.h>
G_BEGIN_DECLS
#define PANGO_TYPE_CLUTTER_FONT_MAP \
(pango_clutter_font_map_get_type ())
#define PANGO_CLUTTER_FONT_MAP(object) \
(G_TYPE_CHECK_INSTANCE_CAST ((object), \
PANGO_TYPE_CLUTTER_FONT_MAP, \
PangoClutterFontMap))
#define PANGO_CLUTTER_IS_FONT_MAP(object) \
(G_TYPE_CHECK_INSTANCE_TYPE ((object), PANGO_TYPE_CLUTTER_FONT_MAP))
typedef struct _PangoClutterFontMap PangoClutterFontMap;
typedef struct _PangoClutterFontMapClass PangoClutterFontMapClass;
typedef void (*PangoClutterSubstituteFunc) (FcPattern *pattern, gpointer data);
GType pango_clutter_font_map_get_type (void);
PangoFontMap*
pango_clutter_font_map_new (void);
void
pango_clutter_font_map_set_default_substitute
(PangoClutterFontMap *fontmap,
PangoClutterSubstituteFunc func,
gpointer data,
GDestroyNotify notify);
void
pango_clutter_font_map_substitute_changed (PangoClutterFontMap *fontmap);
PangoContext *
pango_clutter_font_map_create_context (PangoClutterFontMap *fontmap);
#define FLAG_INVERSE 1
#define FLAG_OUTLINE 2 // not yet implemented
void
pango_clutter_render_layout_subpixel (PangoLayout *layout,
int x,
int y,
ClutterColor *color,
int flags);
void
pango_clutter_render_layout (PangoLayout *layout,
int x,
int y,
ClutterColor *color,
int flags);
void
pango_clutter_render_layout_line (PangoLayoutLine *line,
int x,
int y,
ClutterColor *color);
void
pango_clutter_render_clear_caches ();
G_END_DECLS
#endif

1
configure.ac
View File

@ -118,6 +118,7 @@ AC_SUBST(CLUTTER_CFLAGS)
AC_SUBST(CLUTTER_LIBS) AC_SUBST(CLUTTER_LIBS)
AC_OUTPUT([Makefile AC_OUTPUT([Makefile
clutter/pango/Makefile
clutter/Makefile clutter/Makefile
gtk/Makefile gtk/Makefile
gtk/gtk-clutter.pc gtk/gtk-clutter.pc

4
examples/super-oh.c
View File

@ -186,10 +186,10 @@ main (int argc, char *argv[])
clutter_group_add (CLUTTER_GROUP (oh->group), oh->hand[i]); clutter_group_add (CLUTTER_GROUP (oh->group), oh->hand[i]);
} }
clutter_actor_set_scale (oh->group, .1, 0.1);
#if 0 #if 0
{ {
clutter_actor_set_scale (oh->group, .1, 0.1);
guint w, h; guint w, h;
clutter_actor_get_abs_size (CLUTTER_ACTOR(oh->hand[0]), &w, &h); clutter_actor_get_abs_size (CLUTTER_ACTOR(oh->hand[0]), &w, &h);
g_print ("%ix%i\n", w, h); g_print ("%ix%i\n", w, h);

11
examples/test.c
View File

@ -43,7 +43,10 @@ text_cb (ClutterTimeline *timeline,
g_snprintf(buf, 32, "--> %i <--", frame_num); g_snprintf(buf, 32, "--> %i <--", frame_num);
clutter_label_set_text (label, buf); clutter_label_set_text (label, buf);
// clutter_actor_set_opacity (CLUTTER_ACTOR(label), opacity); clutter_actor_set_size(CLUTTER_ACTOR(label), 150, 0);
clutter_label_set_ellipsize (label, PANGO_ELLIPSIZE_END);
clutter_actor_set_opacity (CLUTTER_ACTOR(label), opacity);
clutter_actor_rotate_z (CLUTTER_ACTOR(label), clutter_actor_rotate_z (CLUTTER_ACTOR(label),
frame_num, frame_num,
@ -66,7 +69,7 @@ main (int argc, char *argv[])
ClutterActor *texture, *label, *rect, *para; ClutterActor *texture, *label, *rect, *para;
ClutterActor *stage; ClutterActor *stage;
ClutterTimeline *timeline; ClutterTimeline *timeline;
ClutterColor rect_col = { 0xff, 0x0, 0x0, 0xff }; ClutterColor rect_col = { 0xff, 0x0, 0x0, 0x99 };
GdkPixbuf *pixbuf; GdkPixbuf *pixbuf;
clutter_init (&argc, &argv); clutter_init (&argc, &argv);
@ -87,6 +90,8 @@ main (int argc, char *argv[])
clutter_actor_set_opacity (CLUTTER_ACTOR(label), 0x99); clutter_actor_set_opacity (CLUTTER_ACTOR(label), 0x99);
clutter_actor_set_position (CLUTTER_ACTOR(label), 550, 100); clutter_actor_set_position (CLUTTER_ACTOR(label), 550, 100);
clutter_actor_set_size(label, 400, 0);
rect = clutter_rectangle_new_with_color(&rect_col); rect = clutter_rectangle_new_with_color(&rect_col);
clutter_actor_set_size(rect, 100, 100); clutter_actor_set_size(rect, 100, 100);
@ -94,7 +99,7 @@ main (int argc, char *argv[])
para = clutter_label_new_with_text ("Sans 24", PARA_TEXT); para = clutter_label_new_with_text ("Sans 24", PARA_TEXT);
clutter_actor_set_position(para, 10, 10); clutter_actor_set_position(para, 10, 10);
clutter_label_set_text_extents (CLUTTER_LABEL(para), 200, 0); clutter_actor_set_size(para, 200, 0);
clutter_group_add (CLUTTER_GROUP (stage), texture); clutter_group_add (CLUTTER_GROUP (stage), texture);
clutter_group_add (CLUTTER_GROUP (stage), label); clutter_group_add (CLUTTER_GROUP (stage), label);