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/*
* Copyright (C) 1997-2009, Michael Jennings
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to
* deal in the Software without restriction, including without limitation the
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
* sell copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies of the Software, its documentation and marketing & publicity
* materials, and acknowledgment shall be given in the documentation, materials
* and software packages that this Software was used.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
static const char cvs_ident[] = "$Id$";
#include "config.h"
#include "feature.h"
#include "draw.h"
#include "misc.h"
#include "pixmap.h"
#include "startup.h"
void
draw_shadow(Drawable d, GC gc_top, GC gc_bottom, int x, int y, int w, int h, int shadow)
{
ASSERT(w != 0);
ASSERT(h != 0);
LOWER_BOUND(shadow, 1);
for (w += x - 1, h += y - 1; shadow > 0; shadow--, w--, h--) {
XDrawLine(Xdisplay, d, gc_top, x, y, w, y);
XDrawLine(Xdisplay, d, gc_top, x, y, x, h);
x++;
y++;
XDrawLine(Xdisplay, d, gc_bottom, w, h, w, y);
XDrawLine(Xdisplay, d, gc_bottom, w, h, x, h);
}
}
void
draw_shadow_from_colors(Drawable d, Pixel top, Pixel bottom, int x, int y, int w, int h, int shadow)
{
static GC gc_top = (GC) 0, gc_bottom = (GC) 0;
if (gc_top == 0) {
gc_top = LIBAST_X_CREATE_GC(0, NULL);
gc_bottom = LIBAST_X_CREATE_GC(0, NULL);
}
XSetForeground(Xdisplay, gc_top, top);
XSetForeground(Xdisplay, gc_bottom, bottom);
draw_shadow(d, gc_top, gc_bottom, x, y, w, h, shadow);
}
void
draw_arrow(Drawable d, GC gc_top, GC gc_bottom, int x, int y, int w, int shadow, unsigned char type)
{
BOUND(shadow, 1, 2);
switch (type) {
case DRAW_ARROW_UP:
for (; shadow > 0; shadow--, x++, y++, w--) {
XDrawLine(Xdisplay, d, gc_top, x, y + w, x + w / 2, y);
XDrawLine(Xdisplay, d, gc_bottom, x + w, y + w, x + w / 2, y);
XDrawLine(Xdisplay, d, gc_bottom, x + w, y + w, x, y + w);
}
break;
case DRAW_ARROW_DOWN:
for (; shadow > 0; shadow--, x++, y++, w--) {
XDrawLine(Xdisplay, d, gc_top, x, y, x + w / 2, y + w);
XDrawLine(Xdisplay, d, gc_top, x, y, x + w, y);
XDrawLine(Xdisplay, d, gc_bottom, x + w, y, x + w / 2, y + w);
}
break;
case DRAW_ARROW_LEFT:
for (; shadow > 0; shadow--, x++, y++, w--) {
XDrawLine(Xdisplay, d, gc_bottom, x + w, y + w, x + w, y);
XDrawLine(Xdisplay, d, gc_bottom, x + w, y + w, x, y + w / 2);
XDrawLine(Xdisplay, d, gc_top, x, y + w / 2, x + w, y);
}
break;
case DRAW_ARROW_RIGHT:
for (; shadow > 0; shadow--, x++, y++, w--) {
XDrawLine(Xdisplay, d, gc_top, x, y, x, y + w);
XDrawLine(Xdisplay, d, gc_top, x, y, x + w, y + w / 2);
XDrawLine(Xdisplay, d, gc_bottom, x, y + w, x + w, y + w / 2);
}
break;
default:
break;
}
}
void
draw_arrow_from_colors(Drawable d, Pixel top, Pixel bottom, int x, int y, int w, int shadow, unsigned char type)
{
static GC gc_top = (GC) 0, gc_bottom = (GC) 0;
if (gc_top == 0) {
gc_top = LIBAST_X_CREATE_GC(0, NULL);
gc_bottom = LIBAST_X_CREATE_GC(0, NULL);
}
XSetForeground(Xdisplay, gc_top, top);
XSetForeground(Xdisplay, gc_bottom, bottom);
draw_arrow(d, gc_top, gc_bottom, x, y, w, shadow, type);
}
void
draw_box(Drawable d, GC gc_top, GC gc_bottom, int x, int y, int w, int h)
{
XDrawLine(Xdisplay, d, gc_top, x + w, y, x, y);
XDrawLine(Xdisplay, d, gc_top, x, y, x, y + h);
XDrawLine(Xdisplay, d, gc_bottom, x, y + h, x + w, y + h);
XDrawLine(Xdisplay, d, gc_bottom, x + w, y + h, x + w, y);
}
#define SHADE_PIXEL(pixel, dir, tmp) do {(tmp) = ((((double)pixel)/depth_factor) + ((dir) ? 0.2 : -0.2)) * depth_factor; \
if ((tmp) > (depth_factor-1)) (tmp) = depth_factor - 1; else if ((tmp) < 0) (tmp) = 0;} while (0)
#define MOD_PIXEL_HIGH(x, y, up) do {v = XGetPixel(ximg, (x), (y)); r = (int) ((v >> br) & mr); g = (int) ((v >> bg) & mg); b = (int) ((v << bb) & mb); \
SHADE_PIXEL(r, (up), dv); r = (int) dv; SHADE_PIXEL(g, (up), dv); g = (int) dv; SHADE_PIXEL(b, (up), dv); b = (int) dv; \
v = ((r & mr) << br) | ((g & mg) << bg) | ((b & mb) >> bb); XPutPixel(ximg, (x), (y), v);} while (0)
void
bevel_pixmap(Pixmap p, int w, int h, Imlib_Border * bord, unsigned char up)
{
XImage *ximg;
register unsigned long v;
double dv;
short x, y, xbound, ybound;
unsigned int r, g, b;
int real_depth = 0, depth_factor;
register int br, bg, bb; /* Bitshifts */
register unsigned int mr, mg, mb; /* Bitmasks */
GC gc;
if (!bord)
return;
depth_factor = 1 << Xdepth;
if (Xdepth <= 8) {
D_PIXMAP(("Depth of %d is not supported. Punt!\n", Xdepth));
return;
} else if (Xdepth == 16) {
XWindowAttributes xattr;
XGetWindowAttributes(Xdisplay, Xroot, &xattr);
if ((xattr.visual->red_mask == 0x7c00) && (xattr.visual->green_mask == 0x3e0) && (xattr.visual->blue_mask == 0x1f)) {
real_depth = 15;
depth_factor = 1 << 15;
}
}
if (!real_depth) {
real_depth = Xdepth;
}
ximg = XGetImage(Xdisplay, p, 0, 0, w, h, -1, ZPixmap);
if (!ximg) {
return;
}
/* Determine bitshift and bitmask values */
switch (real_depth) {
case 15:
br = 7;
bg = 2;
bb = 3;
mr = mg = mb = 0xf8;
break;
case 16:
br = 8;
bg = bb = 3;
mr = mb = 0xf8;
mg = 0xfc;
break;
case 24:
case 32:
br = 16;
bg = 8;
bb = 0;
mr = mg = mb = 0xff;
break;
default:
return;
}
/* Left edge */
for (y = bord->top; y < h; y++) {
xbound = h - y;
if (xbound > bord->left)
xbound = bord->left;
for (x = 0; x < xbound; x++) {
MOD_PIXEL_HIGH(x, y, up);
}
}
/* Right edge */
ybound = h - bord->bottom;
for (y = 0; y < ybound; y++) {
xbound = bord->right - y;
if (xbound < 0)
xbound = 0;
for (x = xbound; x < bord->right; x++) {
MOD_PIXEL_HIGH(x + (w - bord->right), y, !up);
}
}
/* Top edge */
for (y = 0; y < bord->top; y++) {
xbound = w - y;
for (x = 0; x < xbound; x++) {
MOD_PIXEL_HIGH(x, y, up);
}
}
/* Bottom edge */
for (y = h - bord->bottom; y < h; y++) {
for (x = h - y - 1; x < w; x++) {
MOD_PIXEL_HIGH(x, y, !up);
}
}
gc = LIBAST_X_CREATE_GC(0, NULL);
XPutImage(Xdisplay, p, gc, ximg, 0, 0, 0, 0, w, h);
LIBAST_X_FREE_GC(gc);
XDestroyImage(ximg);
}
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