4c7cc1cfa6
If an icon is the same as one in the cache, then it uses that one. icons of different sizes (from the same client) are linked together into one, and resizes of icons are cached and linked to all the various sizes. so you only need one icon in memory for all your terminals now. ya!
250 lines
7.5 KiB
C
250 lines
7.5 KiB
C
/* -*- indent-tabs-mode: nil; tab-width: 4; c-basic-offset: 4; -*-
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icons.c for the Openbox window manager
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Copyright (c) 2003-2007 Dana Jansens
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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See the COPYING file for a copy of the GNU General Public License.
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*/
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#include <X11/Xlib.h>
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#include <X11/Xutil.h>
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#include <X11/Xatom.h>
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#include <X11/cursorfont.h>
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#include <stdlib.h>
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#include <stdio.h>
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#include <assert.h>
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#include <glib.h>
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Window findClient(Display *d, Window win)
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{
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Window r, *children;
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unsigned int n, i;
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Atom state = XInternAtom(d, "WM_STATE", True);
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Atom ret_type;
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int ret_format;
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unsigned long ret_items, ret_bytesleft;
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unsigned long *prop_return;
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XQueryTree(d, win, &r, &r, &children, &n);
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for (i = 0; i < n; ++i) {
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Window w = findClient(d, children[i]);
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if (w) return w;
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}
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// try me
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XGetWindowProperty(d, win, state, 0, 1,
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False, state, &ret_type, &ret_format,
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&ret_items, &ret_bytesleft,
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(unsigned char**) &prop_return);
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if (ret_type == None || ret_items < 1)
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return None;
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return win; // found it!
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}
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int main(int argc, char **argv)
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{
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Display *d = XOpenDisplay(NULL);
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int s = DefaultScreen(d);
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Atom net_wm_icon = XInternAtom(d, "_NET_WM_ICON", True);
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Atom ret_type;
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unsigned int winw = 0, winh = 0;
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int ret_format;
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unsigned long ret_items, ret_bytesleft;
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const int MAX_IMAGES = 10;
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unsigned long *prop_return[MAX_IMAGES];
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XImage *i[MAX_IMAGES];
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long offset = 0;
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unsigned int image = 0;
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unsigned int j; // loop counter
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Window id, win;
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Pixmap p;
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Cursor cur;
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XEvent ev;
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printf("Click on a window with an icon...\n");
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//int id = strtol(argv[1], NULL, 16);
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XUngrabPointer(d, CurrentTime);
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cur = XCreateFontCursor(d, XC_crosshair);
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XGrabPointer(d, RootWindow(d, s), False, ButtonPressMask, GrabModeAsync,
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GrabModeAsync, None, cur, CurrentTime);
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while (1) {
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XNextEvent(d, &ev);
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if (ev.type == ButtonPress) {
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XUngrabPointer(d, CurrentTime);
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id = findClient(d, ev.xbutton.subwindow);
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break;
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}
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}
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printf("Using window 0x%lx\n", id);
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do {
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unsigned int w, h;
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XGetWindowProperty(d, id, net_wm_icon, offset++, 1,
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False, XA_CARDINAL, &ret_type, &ret_format,
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&ret_items, &ret_bytesleft,
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(unsigned char**) &prop_return[image]);
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if (ret_type == None || ret_items < 1) {
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printf("No icon found\n");
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return 1;
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}
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w = prop_return[image][0];
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XFree(prop_return[image]);
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XGetWindowProperty(d, id, net_wm_icon, offset++, 1,
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False, XA_CARDINAL, &ret_type, &ret_format,
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&ret_items, &ret_bytesleft,
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(unsigned char**) &prop_return[image]);
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if (ret_type == None || ret_items < 1) {
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printf("Failed to get height\n");
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return 1;
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}
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h = prop_return[image][0];
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XFree(prop_return[image]);
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XGetWindowProperty(d, id, net_wm_icon, offset, w*h,
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False, XA_CARDINAL, &ret_type, &ret_format,
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&ret_items, &ret_bytesleft,
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(unsigned char**) &prop_return[image]);
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if (ret_type == None || ret_items < w*h) {
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printf("Failed to get image data\n");
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return 1;
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}
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offset += w*h;
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printf("Found icon with size %dx%d\n", w, h);
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i[image] = XCreateImage(d, DefaultVisual(d, s), DefaultDepth(d, s),
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ZPixmap, 0, NULL, w, h, 32, 0);
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assert(i[image]);
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i[image]->byte_order = LSBFirst;
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i[image]->data = (char*)prop_return[image];
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for (j = 0; j < w*h; j++) {
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unsigned char alpha = (unsigned char)i[image]->data[j*4+3];
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unsigned char r = (unsigned char) i[image]->data[j*4+0];
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unsigned char g = (unsigned char) i[image]->data[j*4+1];
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unsigned char b = (unsigned char) i[image]->data[j*4+2];
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// background color
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unsigned char bgr = 0;
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unsigned char bgg = 0;
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unsigned char bgb = 0;
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r = bgr + (r - bgr) * alpha / 256;
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g = bgg + (g - bgg) * alpha / 256;
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b = bgb + (b - bgb) * alpha / 256;
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i[image]->data[j*4+0] = (char) r;
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i[image]->data[j*4+1] = (char) g;
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i[image]->data[j*4+2] = (char) b;
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}
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winw += w;
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if (h > winh) winh = h;
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++image;
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} while (ret_bytesleft > 0 && image < MAX_IMAGES);
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#define hashsize(n) ((guint32)1<<(n))
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#define hashmask(n) (hashsize(n)-1)
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#define rot(x,k) (((x)<<(k)) | ((x)>>(32-(k))))
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#define mix(a,b,c) \
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{ \
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a -= c; a ^= rot(c, 4); c += b; \
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b -= a; b ^= rot(a, 6); a += c; \
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c -= b; c ^= rot(b, 8); b += a; \
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a -= c; a ^= rot(c,16); c += b; \
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b -= a; b ^= rot(a,19); a += c; \
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c -= b; c ^= rot(b, 4); b += a; \
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}
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#define final(a,b,c) \
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{ \
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c ^= b; c -= rot(b,14); \
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a ^= c; a -= rot(c,11); \
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b ^= a; b -= rot(a,25); \
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c ^= b; c -= rot(b,16); \
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a ^= c; a -= rot(c,4); \
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b ^= a; b -= rot(a,14); \
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c ^= b; c -= rot(b,24); \
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}
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/* hash the images */
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for (j = 0; j < image; ++j) {
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unsigned int w, h, length;
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guint32 a,b,c;
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guint32 initval = 0xf00d;
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const guint32 *k = (guint32*)i[j]->data;
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w = i[j]->width;
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h = i[j]->height;
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length = w * h;
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/* Set up the internal state */
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a = b = c = 0xdeadbeef + (((guint32)length)<<2) + initval;
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/*---------------------------------------- handle most of the key */
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while (length > 3)
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{
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a += k[0];
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b += k[1];
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c += k[2];
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mix(a,b,c);
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length -= 3;
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k += 3;
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}
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/*--------------------------------- handle the last 3 uint32_t's */
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switch(length) /* all the case statements fall through */
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{
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case 3 : c+=k[2];
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case 2 : b+=k[1];
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case 1 : a+=k[0];
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final(a,b,c);
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case 0: /* case 0: nothing left to add */
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break;
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}
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/*------------------------------------ report the result */
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printf("image[%d] %ux%u %lu\n", j, w, h, c);
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}
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win = XCreateSimpleWindow(d, RootWindow(d, s), 0, 0, winw, winh,
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0, 0, 0);
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assert(win);
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XMapWindow(d, win);
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p = XCreatePixmap(d, win, winw, winh, DefaultDepth(d, s));
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XFillRectangle(d, p, DefaultGC(d, s), 0, 0, winw, winh);
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for (j = 0; j < image; ++j) {
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static unsigned int x = 0;
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XPutImage(d, p, DefaultGC(d, s), i[j], 0, 0, x, 0,
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i[j]->width, i[j]->height);
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x += i[j]->width;
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XDestroyImage(i[j]);
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}
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XSetWindowBackgroundPixmap(d, win, p);
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XClearWindow(d, win);
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XFlush(d);
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getchar();
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XFreePixmap(d, p);
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XCloseDisplay(d);
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}
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