brl/mutter
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

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

Browse Source 
* 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
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

19
ChangeLog
View File

@ -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>
* 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
ENUMFILES = clutter-enum-types.c clutter-enum-types.h
GLIB_GENMARSHAL=`pkg-config --variable=glib_genmarshal glib-2.0`
@ -97,12 +99,15 @@ libclutter_@CLUTTER_MAJORMINOR@_la_SOURCES = $(MARSHALFILES) \
$(source_h) \
$(source_h_priv)
INCLUDES = @GCC_FLAGS@ @CLUTTER_CFLAGS@ -I$(top_srcdir)
INCLUDES = @GCC_FLAGS@ @CLUTTER_CFLAGS@ -I$(top_srcdir) -I$(top_srcdir)/clutter/pango
lib_LTLIBRARIES = libclutter-@CLUTTER_MAJORMINOR@.la
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_DEPENDENCIES = \
$(top_srcdir)/clutter/pango/libpangoclutter.a
clutterheadersdir = $(includedir)/clutter-@CLUTTER_MAJORMINOR@/clutter
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)
{
glDisable (GL_STENCIL_TEST);
#if 0
glDisable (GL_SCISSOR_TEST);
#endif
}
glPopMatrix();

753
clutter/clutter-label.c
View File

@ -37,18 +37,28 @@
#include "clutter-enum-types.h"
#include "clutter-private.h" /* for DBG */
#include <pango/pangoft2.h>
#include "pangoclutter.h"
#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
{
PROP_0,
PROP_FONT_NAME,
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) \
@ -56,7 +66,6 @@ enum
struct _ClutterLabelPrivate
{
PangoLayout *layout;
PangoContext *context;
PangoFontDescription *desc;
@ -67,97 +76,21 @@ struct _ClutterLabelPrivate
gint extents_width;
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
clutter_label_set_property (GObject *object,
@ -182,6 +115,24 @@ clutter_label_set_property (GObject *object,
case PROP_COLOR:
clutter_label_set_color (label, g_value_get_boxed (value));
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:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
@ -213,12 +164,124 @@ clutter_label_get_property (GObject *object,
clutter_label_get_color (label, &color);
g_value_set_boxed (value, &color);
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:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
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
clutter_label_dispose (GObject *object)
@ -266,13 +329,10 @@ clutter_label_class_init (ClutterLabelClass *klass)
{
GObjectClass *gobject_class = G_OBJECT_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->realize = parent_class->realize;
actor_class->unrealize = parent_class->unrealize;
actor_class->show = parent_class->show;
actor_class->hide = parent_class->hide;
actor_class->paint = clutter_label_paint;
actor_class->request_coords = clutter_label_request_coords;
actor_class->allocate_coords = clutter_label_allocate_coords;
gobject_class->finalize = clutter_label_finalize;
gobject_class->dispose = clutter_label_dispose;
@ -303,6 +363,61 @@ clutter_label_class_init (ClutterLabelClass *klass)
CLUTTER_TYPE_COLOR,
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));
}
@ -310,29 +425,34 @@ static void
clutter_label_init (ClutterLabel *self)
{
ClutterLabelPrivate *priv;
PangoFT2FontMap *font_map;
self->priv = priv = CLUTTER_LABEL_GET_PRIVATE (self);
priv->fgcol.red = 0;
priv->fgcol.green = 0;
priv->fgcol.blue = 0;
priv->fgcol.alpha = 255;
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->text = NULL;
priv->font_name = g_strdup (DEFAULT_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->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->layout = pango_layout_new (priv->context);
priv->fgcol.red = 0;
priv->fgcol.green = 0;
priv->fgcol.blue = 0;
priv->fgcol.alpha = 255;
priv->font_name = g_strdup (DEFAULT_FONT_NAME);
priv->desc = pango_font_description_from_string (priv->font_name);
/* 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();
}
@ -354,18 +474,10 @@ clutter_label_new_with_text (const gchar *font_name,
CLUTTER_MARK();
label = clutter_label_new ();
clutter_label_set_font_name (CLUTTER_LABEL(label), font_name);
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;
}
@ -389,7 +501,7 @@ clutter_label_new (void)
* Retrieves the text displayed by @label
*
* Return value: the text of the label. The returned string is
* owned by #ClutterLabel and should not be modified or freed.
* owned by #ClutterLabel and should not be modified or freed.
*/
G_CONST_RETURN gchar *
clutter_label_get_text (ClutterLabel *label)
@ -419,7 +531,7 @@ clutter_label_set_text (ClutterLabel *label,
g_free (priv->text);
priv->text = g_strdup (text);
clutter_label_make_pixbuf (label);
clutter_label_clear_layout (label);
if (CLUTTER_ACTOR_IS_VISIBLE (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')
{
clutter_label_make_pixbuf (label);
clutter_label_clear_layout (label);
if (CLUTTER_ACTOR_IS_VISIBLE (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");
}
/**
* 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:
@ -566,9 +632,8 @@ clutter_label_set_color (ClutterLabel *label,
priv->fgcol.blue = color->blue;
priv->fgcol.alpha = color->alpha;
clutter_label_make_pixbuf (label);
actor = CLUTTER_ACTOR (label);
clutter_actor_set_opacity (actor, priv->fgcol.alpha);
if (CLUTTER_ACTOR_IS_VISIBLE (actor))
@ -601,3 +666,339 @@ clutter_label_get_color (ClutterLabel *label,
color->blue = priv->fgcol.blue;
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;
}

64
clutter/clutter-label.h
View File

@ -31,6 +31,9 @@
#include <clutter/clutter-texture.h>
#include <clutter/clutter-color.h>
#include <pango/pango.h>
G_BEGIN_DECLS
#define CLUTTER_TYPE_LABEL clutter_label_get_type()
@ -61,7 +64,7 @@ typedef struct _ClutterLabelPrivate ClutterLabelPrivate;
struct _ClutterLabel
{
ClutterTexture parent;
ClutterActor parent;
/*< private >*/
ClutterLabelPrivate *priv;
@ -70,7 +73,7 @@ struct _ClutterLabel
struct _ClutterLabelClass
{
/*< private >*/
ClutterTextureClass parent_class;
ClutterActorClass parent_class;
void (*_clutter_label_1) (void);
void (*_clutter_label_2) (void);
@ -80,11 +83,11 @@ struct _ClutterLabelClass
GType clutter_label_get_type (void) G_GNUC_CONST;
ClutterActor * clutter_label_new (void);
ClutterActor * clutter_label_new_with_text (const gchar *font_name,
ClutterActor *clutter_label_new (void);
ClutterActor *clutter_label_new_with_text (const gchar *font_name,
const gchar *text);
void clutter_label_set_text (ClutterLabel *label,
void clutter_label_set_text (ClutterLabel *label,
const gchar *text);
G_CONST_RETURN gchar *clutter_label_get_text (ClutterLabel *label);
void clutter_label_set_font_name (ClutterLabel *label,
@ -94,12 +97,51 @@ void clutter_label_set_color (ClutterLabel *label,
const ClutterColor *color);
void clutter_label_get_color (ClutterLabel *label,
ClutterColor *color);
void clutter_label_set_text_extents (ClutterLabel *label,
gint width,
gint height);
void clutter_label_get_text_extents (ClutterLabel *label,
gint *width,
gint *height);
void
clutter_label_set_ellipsize (ClutterLabel *label,
PangoEllipsizeMode mode);
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

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;
}

213
clutter/pango/pangoclutter-fontmap.c Normal file
View File

@ -0,0 +1,213 @@
/* 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;
}

121
clutter/pango/pangoclutter-private.h Normal file
View File

@ -0,0 +1,121 @@
/* 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
View File

@ -0,0 +1,584 @@
/* 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_OUTPUT([Makefile
clutter/pango/Makefile
clutter/Makefile
gtk/Makefile
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_actor_set_scale (oh->group, .1, 0.1);
#if 0
{
clutter_actor_set_scale (oh->group, .1, 0.1);
guint w, h;
clutter_actor_get_abs_size (CLUTTER_ACTOR(oh->hand[0]), &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);
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),
frame_num,
@ -66,7 +69,7 @@ main (int argc, char *argv[])
ClutterActor *texture, *label, *rect, *para;
ClutterActor *stage;
ClutterTimeline *timeline;
ClutterColor rect_col = { 0xff, 0x0, 0x0, 0xff };
ClutterColor rect_col = { 0xff, 0x0, 0x0, 0x99 };
GdkPixbuf *pixbuf;
clutter_init (&argc, &argv);
@ -87,6 +90,8 @@ main (int argc, char *argv[])
clutter_actor_set_opacity (CLUTTER_ACTOR(label), 0x99);
clutter_actor_set_position (CLUTTER_ACTOR(label), 550, 100);
clutter_actor_set_size(label, 400, 0);
rect = clutter_rectangle_new_with_color(&rect_col);
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);
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), label);