diff options
Diffstat (limited to 'render/gradient.c')
| -rw-r--r-- | render/gradient.c | 36 |
1 files changed, 34 insertions, 2 deletions
diff --git a/render/gradient.c b/render/gradient.c index d3a09955..99441cd3 100644 --- a/render/gradient.c +++ b/render/gradient.c @@ -24,6 +24,7 @@ #include <glib.h> static void highlight(RrPixel32 *x, RrPixel32 *y, gboolean raised); +static void gradient_parentrelative(RrAppearance *a, gint w, gint h); static void gradient_solid(RrAppearance *l, gint w, gint h); static void gradient_splitvertical(RrAppearance *a, gint w, gint h); static void gradient_vertical(RrSurface *sf, gint w, gint h); @@ -36,11 +37,14 @@ static void gradient_pyramid(RrSurface *sf, gint inw, gint inh); void RrRender(RrAppearance *a, gint w, gint h) { RrPixel32 *data = a->surface.pixel_data; - RrPixel32 current; + RrPixel32 current, *source, *dest; guint r,g,b; - gint off, x; + gint off, x, sw, sh, partial_w, partial_h, i; switch (a->surface.grad) { + case RR_SURFACE_PARENTREL: + gradient_parentrelative(a, w, h); + break; case RR_SURFACE_SOLID: gradient_solid(a, w, h); break; @@ -190,6 +194,34 @@ static void create_bevel_colors(RrAppearance *l) l->surface.bevel_dark = RrColorNew(l->inst, r, g, b); } +static void gradient_parentrelative(RrAppearance *a, gint w, gint h) +{ + RrPixel32 *source, *dest; + gint sw, sh, partial_w, partial_h, i; + + g_assert (a->surface.parent); + g_assert (a->surface.parent->w); + + sw = a->surface.parent->w; + sh = a->surface.parent->h; + + source = (a->surface.parent->surface.pixel_data + + a->surface.parentx + sw * a->surface.parenty); + dest = a->surface.pixel_data; + + if (a->surface.parentx + w > sw) { + partial_w = sw - a->surface.parentx; + } else partial_w = w; + + if (a->surface.parenty + h > sh) { + partial_h = sh - a->surface.parenty; + } else partial_h = h; + + for (i = 0; i < partial_h; i++, source += sw, dest += w) { + memcpy(dest, source, partial_w * sizeof(RrPixel32)); + } +} + static void gradient_solid(RrAppearance *l, gint w, gint h) { gint i; |