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[cogl-pango-render] Fix returning to default color after a color attribute

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Since the Cogl material branch merge when changing the color of a part
using pango attributes (such as using <span color="red" /> markup)
then it wouldn't return to the default color for the rest of the
layout. pango_renderer_get_color returns NULL if there is no color
override in which case it needs to revert to the color specified as
the argument to cogl_pango_render_layout. The 'color' member of
CoglPangoRenderer has been reinstated to store that default color and
now cogl_pango_render_set_color_for_part is the only place that sets
the material color.
This commit is contained in:
Neil Roberts 2009-04-06 11:14:43 +01:00
parent a1cc1f57ac
commit fff5585b5f
1 changed files with 14 additions and 17 deletions
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31
clutter/pango/cogl-pango-render.c
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@ -41,6 +41,8 @@ struct _CoglPangoRenderer
{
PangoRenderer parent_instance;
/* The color to draw the glyphs with */
CoglColor color;
/* The material used to texture from the glyph cache with */
CoglHandle glyph_material;
/* The material used for solid fills. (boxes, rectangles + trapezoids) */
@ -238,8 +240,7 @@ cogl_pango_render_layout_subpixel (PangoLayout *layout,
if (G_UNLIKELY (!priv))
return;
cogl_material_set_color (priv->glyph_material, color);
cogl_material_set_color (priv->solid_material, color);
priv->color = *color;
pango_renderer_draw_layout (PANGO_RENDERER (priv), layout, x, y);
}
@ -295,8 +296,7 @@ cogl_pango_render_layout_line (PangoLayoutLine *line,
if (G_UNLIKELY (!priv))
return;
cogl_material_set_color (priv->glyph_material, color);
cogl_material_set_color (priv->solid_material, color);
priv->color = *color;
pango_renderer_draw_layout_line (PANGO_RENDERER (priv), line, x, y);
}
@ -432,23 +432,20 @@ cogl_pango_renderer_set_color_for_part (PangoRenderer *renderer,
{
PangoColor *pango_color = pango_renderer_get_color (renderer, part);
CoglPangoRenderer *priv = COGL_PANGO_RENDERER (renderer);
CoglColor color;
if (pango_color)
{
CoglColor color;
guint8 red = pango_color->red >> 8;
guint8 green = pango_color->green >> 8;
guint8 blue = pango_color->blue >> 8;
guint8 alpha;
cogl_material_get_color (priv->solid_material, &color);
alpha = cogl_color_get_alpha_byte (&color);
cogl_material_set_color4ub (priv->solid_material,
red, green, blue, alpha);
cogl_material_set_color4ub (priv->glyph_material,
red, green, blue, alpha);
color.red = pango_color->red >> 8;
color.green = pango_color->green >> 8;
color.blue = pango_color->blue >> 8;
color.alpha = priv->color.alpha;
}
else
color = priv->color;
cogl_material_set_color (priv->solid_material, &color);
cogl_material_set_color (priv->glyph_material, &color);
}
static void