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theme: Use cairo for drawing ICON

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Thanks to Benjamin Otte for helping me clean this up.

https://bugzilla.gnome.org/show_bug.cgi?id=662962
This commit is contained in:
Jasper St. Pierre 2011-10-28 21:52:07 -04:00
parent 545f298921
commit 4c2c1c4dd2
1 changed files with 70 additions and 39 deletions
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105
src/ui/theme.c
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@ -3484,20 +3484,6 @@ draw_op_as_pixbuf (const MetaDrawOp *op,
break;
}
case META_DRAW_ICON:
if (info->mini_icon &&
width <= gdk_pixbuf_get_width (info->mini_icon) &&
height <= gdk_pixbuf_get_height (info->mini_icon))
pixbuf = scale_pixbuf (info->mini_icon,
op->data.icon.fill_type,
width, height,
FALSE, FALSE);
else if (info->icon)
pixbuf = scale_pixbuf (info->icon,
op->data.icon.fill_type,
width, height,
FALSE, FALSE);
break;
case META_DRAW_LINE:
case META_DRAW_RECTANGLE:
case META_DRAW_ARC:
@ -3580,6 +3566,61 @@ meta_alpha_gradient_spec_pattern (const MetaAlphaGradientSpec *alpha_spec)
}
}
static void
draw_image (cairo_t *cr,
GdkPixbuf *src,
MetaImageFillType fill_type,
MetaAlphaGradientSpec *alpha_spec,
int x,
int y,
int width,
int height)
{
cairo_save (cr);
cairo_rectangle (cr, x, y, width, height);
if (fill_type == META_IMAGE_FILL_TILE)
{
gdk_cairo_set_source_pixbuf (cr, src, 0, 0);
cairo_pattern_set_extend (cairo_get_source (cr),
CAIRO_EXTEND_REPEAT);
}
else
{
float pixbuf_width, pixbuf_height;
pixbuf_width = gdk_pixbuf_get_width (src);
pixbuf_height = gdk_pixbuf_get_height (src);
cairo_save (cr);
cairo_translate (cr, x, y);
cairo_scale (cr,
pixbuf_width / width,
pixbuf_height / height);
gdk_cairo_set_source_pixbuf (cr, src, 0, 0);
cairo_restore (cr);
}
if (alpha_spec)
{
cairo_translate (cr, x, y);
cairo_scale (cr, width, height);
cairo_pattern_t *pattern = meta_alpha_gradient_spec_pattern (alpha_spec);
cairo_mask (cr, pattern);
cairo_pattern_destroy (pattern);
}
else
{
cairo_fill (cr);
}
cairo_restore (cr);
}
/* This code was originally rendering anti-aliased using X primitives, and
* now has been switched to draw anti-aliased using cairo. In general, the
* closest correspondence between X rendering and cairo rendering is given
@ -3923,37 +3964,27 @@ meta_draw_op_draw_with_env (const MetaDrawOp *op,
case META_DRAW_ICON:
{
int rx, ry, rwidth, rheight;
GdkPixbuf *pixbuf;
GdkPixbuf *src;
rwidth = parse_size_unchecked (op->data.icon.width, env);
rheight = parse_size_unchecked (op->data.icon.height, env);
pixbuf = draw_op_as_pixbuf (op, style_gtk, info,
rwidth, rheight);
if (info->mini_icon &&
rwidth < gdk_pixbuf_get_width (info->mini_icon) &&
rheight < gdk_pixbuf_get_height (info->mini_icon))
src = info->mini_icon;
else if (info->icon)
src = info->icon;
else
break;
if (pixbuf)
{
rx = parse_x_position_unchecked (op->data.icon.x, env);
ry = parse_y_position_unchecked (op->data.icon.y, env);
gdk_cairo_set_source_pixbuf (cr, pixbuf, rx, ry);
if (op->data.icon.alpha_spec)
{
cairo_translate (cr, rx, ry);
cairo_scale (cr, rwidth, rheight);
cairo_pattern_t *pattern = meta_alpha_gradient_spec_pattern (op->data.icon.alpha_spec);
cairo_mask (cr, pattern);
cairo_pattern_destroy (pattern);
}
else
{
cairo_paint (cr);
}
g_object_unref (G_OBJECT (pixbuf));
}
draw_image (cr, src,
op->data.icon.fill_type,
op->data.icon.alpha_spec,
rx, ry, rwidth, rheight);
}
break;