2018-05-12 16:03:00 +00:00
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/*
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2009-07-28 21:44:22 +00:00
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*
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* Conky, a system monitor, based on torsmo
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2009-02-22 16:53:30 +00:00
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*
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* Any original torsmo code is licensed under the BSD license
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*
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* All code written since the fork of torsmo is licensed under the GPL
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*
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* Please see COPYING for details
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*
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* Copyright (c) 2004, Hannu Saransaari and Lauri Hakkarainen
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2021-02-27 15:14:19 +00:00
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* Copyright (c) 2005-2021 Brenden Matthews, Philip Kovacs, et. al.
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2009-02-22 16:53:30 +00:00
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* (see AUTHORS)
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* All rights reserved.
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*
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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 3 of the License, or
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* (at your option) any later version.
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*
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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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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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*/
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#include "conky.h"
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#include "logging.h"
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2010-01-07 02:38:12 +00:00
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#ifdef BUILD_X11
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2009-02-22 16:53:30 +00:00
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#include "x11.h"
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2009-03-17 17:36:46 +00:00
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#endif
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2009-02-22 16:53:30 +00:00
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/* precalculated: 31/255, and 63/255 */
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#define CONST_8_TO_5_BITS 0.12156862745098
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#define CONST_8_TO_6_BITS 0.247058823529412
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2020-11-09 15:47:13 +00:00
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short colour_depth = 0;
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long redmask, greenmask, bluemask;
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2020-11-08 18:08:27 +00:00
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2020-11-09 15:47:13 +00:00
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void set_up_gradient() {
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2010-01-07 02:38:12 +00:00
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#ifdef BUILD_X11
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2018-05-12 16:03:00 +00:00
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if (out_to_x.get(*state)) {
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colour_depth = DisplayPlanes(display, screen);
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} else
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2010-01-07 02:38:12 +00:00
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#endif /* BUILD_X11 */
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2018-05-12 16:03:00 +00:00
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{
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colour_depth = 16;
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}
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if (colour_depth != 24 && colour_depth != 16) {
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NORM_ERR(
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"using non-standard colour depth, gradients may look like a "
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"lolly-pop");
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}
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2009-02-22 16:53:30 +00:00
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2018-05-12 16:03:00 +00:00
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redmask = 0;
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greenmask = 0;
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bluemask = 0;
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2021-03-06 12:58:08 +00:00
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for (int i = (colour_depth / 3) - 1; i >= 0; i--) {
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2018-05-12 16:03:00 +00:00
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redmask |= 1 << i;
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greenmask |= 1 << i;
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bluemask |= 1 << i;
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}
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2019-02-23 19:40:34 +00:00
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if (colour_depth % 3 == 1) { greenmask |= 1 << (colour_depth / 3); }
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2018-05-12 16:03:00 +00:00
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redmask = redmask << (2 * colour_depth / 3 + colour_depth % 3);
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greenmask = greenmask << (colour_depth / 3);
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2009-02-22 16:53:30 +00:00
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}
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2009-05-26 09:14:52 +00:00
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/* adjust colour values depending on colour depth */
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2018-05-12 16:03:00 +00:00
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unsigned int adjust_colours(unsigned int colour) {
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double r, g, b;
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2009-02-22 16:53:30 +00:00
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2019-02-23 19:40:34 +00:00
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if (colour_depth == 0) { set_up_gradient(); }
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2018-05-12 16:03:00 +00:00
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if (colour_depth == 16) {
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r = (colour & 0xff0000) >> 16;
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g = (colour & 0xff00) >> 8;
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b = colour & 0xff;
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2018-05-12 23:26:31 +00:00
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colour = static_cast<int>(r * CONST_8_TO_5_BITS) << 11;
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colour |= static_cast<int>(g * CONST_8_TO_6_BITS) << 5;
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colour |= static_cast<int>(b * CONST_8_TO_5_BITS);
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2018-05-12 16:03:00 +00:00
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}
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return colour;
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2009-02-22 16:53:30 +00:00
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}
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2022-11-28 19:23:23 +00:00
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#ifdef BUILD_GUI
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#ifndef BUILD_X11
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static int hex_nibble_value(char c) {
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if (c >= '0' && c <= '9') {
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return c - '0';
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} else if (c >= 'a' && c <= 'f') {
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return c - 'a' + 10;
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} else if (c >= 'A' && c <= 'F') {
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return c - 'A' + 10;
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}
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return -1;
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}
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#endif /* !BUILD_X11 */
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2018-05-12 16:03:00 +00:00
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long get_x11_color(const char *name) {
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2022-11-28 19:23:23 +00:00
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#ifdef BUILD_X11
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2018-05-12 16:03:00 +00:00
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XColor color;
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2009-11-22 13:55:22 +00:00
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2018-05-12 16:03:00 +00:00
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color.pixel = 0;
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2018-05-12 23:26:31 +00:00
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if (XParseColor(display, DefaultColormap(display, screen), name, &color) ==
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0) {
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2018-05-12 16:03:00 +00:00
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/* lets check if it's a hex colour with the # missing in front
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* if yes, then do something about it */
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char newname[DEFAULT_TEXT_BUFFER_SIZE];
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2009-11-22 13:55:22 +00:00
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2018-05-12 16:03:00 +00:00
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newname[0] = '#';
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strncpy(&newname[1], name, DEFAULT_TEXT_BUFFER_SIZE - 1);
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/* now lets try again */
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2018-05-12 23:26:31 +00:00
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if (XParseColor(display, DefaultColormap(display, screen), &newname[0],
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&color) == 0) {
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2018-05-12 16:03:00 +00:00
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NORM_ERR("can't parse X color '%s'", name);
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return 0xFF00FF;
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}
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}
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2018-05-12 23:26:31 +00:00
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if (XAllocColor(display, DefaultColormap(display, screen), &color) == 0) {
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2018-05-12 16:03:00 +00:00
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NORM_ERR("can't allocate X color '%s'", name);
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}
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2009-11-22 13:55:22 +00:00
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2018-05-12 23:26:31 +00:00
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return static_cast<long>(color.pixel);
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2022-11-28 19:23:23 +00:00
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#else /*BUILD_X11*/
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if (name[0] == '#') {
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name++;
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}
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size_t len = strlen(name);
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if (len == 6 || len == 8)
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{
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unsigned char argb[4] = {0xff, 0, 0, 0};
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for (size_t i = 0; i + 1 < len; i += 2) {
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int nib1 = hex_nibble_value(name[i]);
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int nib2 = hex_nibble_value(name[i+1]);
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if (nib1 < 0 || nib2 < 0) {
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goto err;
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}
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int val = (nib1 << 4) + nib2;
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argb[3 - i / 2] = val;
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}
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long out;
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memcpy(static_cast<void*>(&out), argb, 4);
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return out;
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}
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err:
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NORM_ERR("can't parse X color '%s'", name);
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return 0xFF00FF;
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#endif /*BUILD_X11*/
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2009-11-22 13:55:22 +00:00
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}
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2010-02-28 11:26:18 +00:00
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2018-05-12 16:03:00 +00:00
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long get_x11_color(const std::string &colour) {
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return get_x11_color(colour.c_str());
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}
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2022-11-28 19:23:23 +00:00
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#endif /*BUILD_GUI*/
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