mirror of
https://github.com/netsurf-browser/netsurf
synced 2024-11-22 22:41:30 +03:00
283 lines
7.5 KiB
C
283 lines
7.5 KiB
C
/*
|
|
* Copyright 2020 Michael Drake <tlsa@netsurf-browser.org>
|
|
*
|
|
* This file is part of NetSurf, http://www.netsurf-browser.org/
|
|
*
|
|
* NetSurf is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; version 2 of the License.
|
|
*
|
|
* NetSurf is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
/**
|
|
* \file
|
|
* NetSurf UI colours (implementation).
|
|
*
|
|
* Builds common colours used throughout NetSurf's interface.
|
|
*/
|
|
|
|
#include <stdio.h>
|
|
#include <assert.h>
|
|
#include <stddef.h>
|
|
#include <stdbool.h>
|
|
|
|
#include "netsurf/inttypes.h"
|
|
#include "netsurf/plot_style.h"
|
|
|
|
#include "utils/errors.h"
|
|
#include "utils/nscolour.h"
|
|
#include "desktop/system_colour.h"
|
|
|
|
colour nscolours[NSCOLOUR__COUNT];
|
|
|
|
/**
|
|
* Set some colours up from a couple of system colour entries.
|
|
*
|
|
* \param[in] name_bg Name of choices string for background colour lookup.
|
|
* \param[in] name_fg Name of choices string for foreground colour lookup.
|
|
* \param[in] bg_num Numerator for background adjustment ratio.
|
|
* \param[in] bg_den Denominator for backfground adjustment ratio.
|
|
* \param[out] bg Returns the background colour.
|
|
* \param[out] bg_hover Returns the hovered background colour.
|
|
* \param[out] fg Returns the foreground colour.
|
|
* \param[out] fg_subtle Returns the subtle foreground colour.
|
|
* \param[out] fg_faded Returns the faded foreground colour.
|
|
* \param[out] fg_good Returns the good foreground colour.
|
|
* \param[out] fg_bad Returns the bad foreground colour.
|
|
* \param[out] border Returns the border colour.
|
|
*/
|
|
static nserror nscolour__get(
|
|
const char *name_bg,
|
|
const char *name_fg,
|
|
unsigned bg_num,
|
|
unsigned bg_den,
|
|
colour *bg,
|
|
colour *bg_hover,
|
|
colour *fg,
|
|
colour *fg_subtle,
|
|
colour *fg_faded,
|
|
colour *fg_good,
|
|
colour *fg_bad,
|
|
colour *border)
|
|
{
|
|
nserror res;
|
|
bool dark_mode;
|
|
colour bg_sys;
|
|
|
|
assert(name_bg != NULL);
|
|
assert(name_fg != NULL);
|
|
assert(bg != NULL);
|
|
assert(fg != NULL);
|
|
|
|
/* user configured background colour */
|
|
res = ns_system_colour_char(name_bg, &bg_sys);
|
|
if (res != NSERROR_OK) {
|
|
return res;
|
|
}
|
|
|
|
/* user configured foreground colour */
|
|
res = ns_system_colour_char(name_fg, fg);
|
|
if (res != NSERROR_OK) {
|
|
return res;
|
|
}
|
|
|
|
/* if there is a valid background fraction apply it */
|
|
if (bg_num < bg_den) {
|
|
*bg = mix_colour(bg_sys, *fg, 255 * bg_num / bg_den);
|
|
} else {
|
|
*bg = bg_sys;
|
|
}
|
|
|
|
dark_mode = colour_lightness(*fg) > colour_lightness(*bg);
|
|
|
|
if (bg_hover != NULL) {
|
|
*bg_hover = dark_mode ?
|
|
half_lighten_colour(*bg) :
|
|
half_darken_colour(*bg);
|
|
}
|
|
|
|
if (fg_subtle != NULL) {
|
|
*fg_subtle = mix_colour(*fg, *bg, 255 * 25 / 32);
|
|
}
|
|
|
|
if (fg_faded != NULL) {
|
|
*fg_faded = mix_colour(*fg, *bg, 255 * 20 / 32);
|
|
}
|
|
|
|
if (fg_good != NULL) {
|
|
*fg_good = colour_engorge_component(*fg, !dark_mode,
|
|
PLOT_COLOUR_COMPONENT_GREEN);
|
|
}
|
|
|
|
if (fg_bad != NULL) {
|
|
*fg_bad = colour_engorge_component(*fg, !dark_mode,
|
|
PLOT_COLOUR_COMPONENT_RED);
|
|
}
|
|
|
|
if (border != NULL) {
|
|
*border = mix_colour(*fg, bg_sys, 255 * 8 / 32);
|
|
}
|
|
|
|
return NSERROR_OK;
|
|
}
|
|
|
|
/* Exported interface, documented in utils/nscolour.h */
|
|
nserror nscolour_update(void)
|
|
{
|
|
nserror res;
|
|
|
|
res = nscolour__get("Window", "WindowText", 16, 16,
|
|
&nscolours[NSCOLOUR_WIN_EVEN_BG],
|
|
&nscolours[NSCOLOUR_WIN_EVEN_BG_HOVER],
|
|
&nscolours[NSCOLOUR_WIN_EVEN_FG],
|
|
&nscolours[NSCOLOUR_WIN_EVEN_FG_SUBTLE],
|
|
&nscolours[NSCOLOUR_WIN_EVEN_FG_FADED],
|
|
&nscolours[NSCOLOUR_WIN_EVEN_FG_GOOD],
|
|
&nscolours[NSCOLOUR_WIN_EVEN_FG_BAD],
|
|
&nscolours[NSCOLOUR_WIN_EVEN_BORDER]);
|
|
if (res != NSERROR_OK) {
|
|
return res;
|
|
}
|
|
|
|
res = nscolour__get("Window", "WindowText", 15, 16,
|
|
&nscolours[NSCOLOUR_WIN_ODD_BG],
|
|
&nscolours[NSCOLOUR_WIN_ODD_BG_HOVER],
|
|
&nscolours[NSCOLOUR_WIN_ODD_FG],
|
|
&nscolours[NSCOLOUR_WIN_ODD_FG_SUBTLE],
|
|
&nscolours[NSCOLOUR_WIN_ODD_FG_FADED],
|
|
&nscolours[NSCOLOUR_WIN_ODD_FG_GOOD],
|
|
&nscolours[NSCOLOUR_WIN_ODD_FG_BAD],
|
|
&nscolours[NSCOLOUR_WIN_ODD_BORDER]);
|
|
if (res != NSERROR_OK) {
|
|
return res;
|
|
}
|
|
|
|
res = nscolour__get("Highlight", "HighlightText", 16, 16,
|
|
&nscolours[NSCOLOUR_SEL_BG],
|
|
NULL,
|
|
&nscolours[NSCOLOUR_SEL_FG],
|
|
&nscolours[NSCOLOUR_SEL_FG_SUBTLE],
|
|
NULL,
|
|
NULL,
|
|
NULL,
|
|
NULL);
|
|
if (res != NSERROR_OK) {
|
|
return res;
|
|
}
|
|
|
|
res = ns_system_colour_char("Scrollbar",
|
|
&nscolours[NSCOLOUR_SCROLL_WELL]);
|
|
if (res != NSERROR_OK) {
|
|
return res;
|
|
}
|
|
|
|
res = nscolour__get("ButtonFace", "ButtonText", 16, 16,
|
|
&nscolours[NSCOLOUR_BUTTON_BG],
|
|
NULL,
|
|
&nscolours[NSCOLOUR_BUTTON_FG],
|
|
NULL,
|
|
NULL,
|
|
NULL,
|
|
NULL,
|
|
NULL);
|
|
if (res != NSERROR_OK) {
|
|
return res;
|
|
}
|
|
|
|
nscolours[NSCOLOUR_TEXT_INPUT_BG] =
|
|
colour_to_bw_nearest(nscolours[NSCOLOUR_WIN_EVEN_BG]);
|
|
nscolours[NSCOLOUR_TEXT_INPUT_FG] =
|
|
colour_to_bw_nearest(nscolours[NSCOLOUR_WIN_EVEN_FG]);
|
|
nscolours[NSCOLOUR_TEXT_INPUT_FG_SUBTLE] =
|
|
blend_colour(nscolours[NSCOLOUR_TEXT_INPUT_BG],
|
|
nscolours[NSCOLOUR_TEXT_INPUT_FG]);
|
|
|
|
return NSERROR_OK;
|
|
}
|
|
|
|
/* Exported interface, documented in utils/nscolour.h */
|
|
nserror nscolour_get_stylesheet(const char **stylesheet_out)
|
|
{
|
|
static char buffer[640];
|
|
int ret;
|
|
|
|
assert(stylesheet_out != NULL);
|
|
|
|
ret = snprintf(buffer, sizeof(buffer),
|
|
".ns-odd-bg {\n"
|
|
"\tbackground-color: #%06"PRIx32";\n"
|
|
"}\n"
|
|
".ns-odd-bg-hover {\n"
|
|
"\tbackground-color: #%06"PRIx32";\n"
|
|
"}\n"
|
|
".ns-odd-fg {\n"
|
|
"\tcolor: #%06"PRIx32";\n"
|
|
"}\n"
|
|
".ns-odd-fg-subtle {\n"
|
|
"\tcolor: #%06"PRIx32";\n"
|
|
"}\n"
|
|
".ns-odd-fg-faded {\n"
|
|
"\tcolor: #%06"PRIx32";\n"
|
|
"}\n"
|
|
".ns-odd-fg-good {\n"
|
|
"\tcolor: #%06"PRIx32";\n"
|
|
"}\n"
|
|
".ns-odd-fg-bad {\n"
|
|
"\tcolor: #%06"PRIx32";\n"
|
|
"}\n"
|
|
".ns-even-bg {\n"
|
|
"\tbackground-color: #%06"PRIx32";\n"
|
|
"}\n"
|
|
".ns-even-bg-hover {\n"
|
|
"\tbackground-color: #%06"PRIx32";\n"
|
|
"}\n"
|
|
".ns-even-fg {\n"
|
|
"\tcolor: #%06"PRIx32";\n"
|
|
"}\n"
|
|
".ns-even-fg-subtle {\n"
|
|
"\tcolor: #%06"PRIx32";\n"
|
|
"}\n"
|
|
".ns-even-fg-faded {\n"
|
|
"\tcolor: #%06"PRIx32";\n"
|
|
"}\n"
|
|
".ns-even-fg-good {\n"
|
|
"\tcolor: #%06"PRIx32";\n"
|
|
"}\n"
|
|
".ns-even-fg-bad {\n"
|
|
"\tcolor: #%06"PRIx32";\n"
|
|
"}\n"
|
|
".ns-border {\n"
|
|
"\tborder-color: #%06"PRIx32";\n"
|
|
"}\n",
|
|
colour_rb_swap(nscolours[NSCOLOUR_WIN_ODD_BG]),
|
|
colour_rb_swap(nscolours[NSCOLOUR_WIN_ODD_BG_HOVER]),
|
|
colour_rb_swap(nscolours[NSCOLOUR_WIN_ODD_FG]),
|
|
colour_rb_swap(nscolours[NSCOLOUR_WIN_ODD_FG_SUBTLE]),
|
|
colour_rb_swap(nscolours[NSCOLOUR_WIN_ODD_FG_FADED]),
|
|
colour_rb_swap(nscolours[NSCOLOUR_WIN_ODD_FG_GOOD]),
|
|
colour_rb_swap(nscolours[NSCOLOUR_WIN_ODD_FG_BAD]),
|
|
colour_rb_swap(nscolours[NSCOLOUR_WIN_EVEN_BG]),
|
|
colour_rb_swap(nscolours[NSCOLOUR_WIN_EVEN_BG_HOVER]),
|
|
colour_rb_swap(nscolours[NSCOLOUR_WIN_EVEN_FG]),
|
|
colour_rb_swap(nscolours[NSCOLOUR_WIN_EVEN_FG_SUBTLE]),
|
|
colour_rb_swap(nscolours[NSCOLOUR_WIN_EVEN_FG_FADED]),
|
|
colour_rb_swap(nscolours[NSCOLOUR_WIN_EVEN_FG_GOOD]),
|
|
colour_rb_swap(nscolours[NSCOLOUR_WIN_EVEN_FG_BAD]),
|
|
colour_rb_swap(nscolours[NSCOLOUR_WIN_EVEN_BORDER]));
|
|
assert(ret > 0 && (size_t)ret < sizeof(buffer));
|
|
if (ret < 0 || (size_t)ret >= sizeof(buffer)) {
|
|
/* Error or buffer too small */
|
|
return NSERROR_NOSPACE;
|
|
}
|
|
|
|
*stylesheet_out = buffer;
|
|
return NSERROR_OK;
|
|
}
|