gradient.c for the Openbox window manager
Copyright (c) 2006 Mikael Magnusson
- Copyright (c) 2003 Ben Jansens
+ Copyright (c) 2003-2007 Dana Jansens
Copyright (c) 2003 Derek Foreman
This program is free software; you can redistribute it and/or modify
#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);
gint off, x;
switch (a->surface.grad) {
+ case RR_SURFACE_PARENTREL:
+ gradient_parentrelative(a, w, h);
+ break;
case RR_SURFACE_SOLID:
gradient_solid(a, w, h);
break;
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;