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theme: Compute scale values once

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Use a local variable to store the xscale and yscale, so that it's only
computed once.
Makes it easier to do the changes I'm about to do.
This commit is contained in:
Benjamin Otte 2011-03-05 14:49:19 +01:00
parent 8c8dda6a6b
commit 41b5a6a900
1 changed files with 6 additions and 4 deletions
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10
gtk/gtkthemingengine.c
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@ -3005,6 +3005,8 @@ gtk_theming_engine_render_activity (GtkThemingEngine *engine,
/* transparency is a function of time and intial value */
gdouble t = (gdouble) ((i + num_steps - step)
% num_steps) / num_steps;
gdouble xscale = cos (i * G_PI / half);
gdouble yscale = sin (i * G_PI / half);
cairo_set_source_rgba (cr,
color->red,
@ -3013,11 +3015,11 @@ gtk_theming_engine_render_activity (GtkThemingEngine *engine,
color->alpha * t);
cairo_move_to (cr,
(radius - inset) * cos (i * G_PI / half),
(radius - inset) * sin (i * G_PI / half));
(radius - inset) * xscale,
(radius - inset) * yscale);
cairo_line_to (cr,
radius * cos (i * G_PI / half),
radius * sin (i * G_PI / half));
radius * xscale,
radius * yscale);
cairo_stroke (cr);
}