mirror of https://github.com/tstack/lnav
You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
237 lines
7.2 KiB
C++
237 lines
7.2 KiB
C++
/**
|
|
* Copyright (c) 2019, Timothy Stack
|
|
*
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions are met:
|
|
*
|
|
* * Redistributions of source code must retain the above copyright notice, this
|
|
* list of conditions and the following disclaimer.
|
|
* * Redistributions in binary form must reproduce the above copyright notice,
|
|
* this list of conditions and the following disclaimer in the documentation
|
|
* and/or other materials provided with the distribution.
|
|
* * Neither the name of Timothy Stack nor the names of its contributors
|
|
* may be used to endorse or promote products derived from this software
|
|
* without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ''AS IS'' AND ANY
|
|
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
|
|
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
|
|
* DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
|
|
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
|
|
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
|
|
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
|
|
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
|
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
|
|
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
*/
|
|
|
|
#include <string>
|
|
|
|
#include "styling.hh"
|
|
|
|
#include "ansi-palette-json.h"
|
|
#include "base/from_trait.hh"
|
|
#include "config.h"
|
|
#include "css-color-names-json.h"
|
|
#include "fmt/format.h"
|
|
#include "xterm-palette-json.h"
|
|
#include "yajlpp/yajlpp.hh"
|
|
#include "yajlpp/yajlpp_def.hh"
|
|
|
|
static const struct json_path_container term_color_rgb_handler = {
|
|
yajlpp::property_handler("r").for_field(&rgb_color::rc_r),
|
|
yajlpp::property_handler("g").for_field(&rgb_color::rc_g),
|
|
yajlpp::property_handler("b").for_field(&rgb_color::rc_b),
|
|
};
|
|
|
|
static const struct json_path_container term_color_handler = {
|
|
yajlpp::property_handler("colorId").for_field(&term_color::xc_id),
|
|
yajlpp::property_handler("name").for_field(&term_color::xc_name),
|
|
yajlpp::property_handler("hexString").for_field(&term_color::xc_hex),
|
|
yajlpp::property_handler("rgb")
|
|
.for_child(&term_color::xc_color)
|
|
.with_children(term_color_rgb_handler),
|
|
};
|
|
|
|
static const typed_json_path_container<std::vector<term_color>>
|
|
root_color_handler = {
|
|
yajlpp::property_handler("#")
|
|
.with_obj_provider<term_color, std::vector<term_color>>(
|
|
[](const yajlpp_provider_context& ypc,
|
|
std::vector<term_color>* palette) {
|
|
if (ypc.ypc_index >= palette->size()) {
|
|
palette->resize(ypc.ypc_index + 1);
|
|
}
|
|
return &((*palette)[ypc.ypc_index]);
|
|
})
|
|
.with_children(term_color_handler),
|
|
};
|
|
|
|
struct css_color_names {
|
|
std::map<std::string, std::string> ccn_name_to_color;
|
|
};
|
|
|
|
static const typed_json_path_container<css_color_names> css_color_names_handlers
|
|
= {
|
|
yajlpp::pattern_property_handler("(?<css_color_name>.*)")
|
|
.for_field(&css_color_names::ccn_name_to_color),
|
|
};
|
|
|
|
static const css_color_names&
|
|
get_css_color_names()
|
|
{
|
|
static const intern_string_t iname
|
|
= intern_string::lookup(css_color_names_json.get_name());
|
|
static const auto INSTANCE
|
|
= css_color_names_handlers.parser_for(iname)
|
|
.of(css_color_names_json.to_string_fragment())
|
|
.unwrap();
|
|
|
|
return INSTANCE;
|
|
}
|
|
|
|
term_color_palette*
|
|
xterm_colors()
|
|
{
|
|
static term_color_palette retval(xterm_palette_json.get_name(),
|
|
xterm_palette_json.to_string_fragment());
|
|
|
|
return &retval;
|
|
}
|
|
|
|
term_color_palette*
|
|
ansi_colors()
|
|
{
|
|
static term_color_palette retval(ansi_palette_json.get_name(),
|
|
ansi_palette_json.to_string_fragment());
|
|
|
|
return &retval;
|
|
}
|
|
|
|
template<>
|
|
Result<rgb_color, std::string>
|
|
from(string_fragment sf)
|
|
{
|
|
if (sf.empty()) {
|
|
return Ok(rgb_color());
|
|
}
|
|
|
|
if (sf[0] != '#') {
|
|
const auto& css_colors = get_css_color_names();
|
|
const auto& iter = css_colors.ccn_name_to_color.find(sf.to_string());
|
|
|
|
if (iter != css_colors.ccn_name_to_color.end()) {
|
|
sf = string_fragment::from_str(iter->second);
|
|
}
|
|
}
|
|
|
|
rgb_color rgb_out;
|
|
|
|
if (sf[0] == '#') {
|
|
switch (sf.length()) {
|
|
case 4:
|
|
if (sscanf(sf.data(),
|
|
"#%1hx%1hx%1hx",
|
|
&rgb_out.rc_r,
|
|
&rgb_out.rc_g,
|
|
&rgb_out.rc_b)
|
|
== 3)
|
|
{
|
|
rgb_out.rc_r |= rgb_out.rc_r << 4;
|
|
rgb_out.rc_g |= rgb_out.rc_g << 4;
|
|
rgb_out.rc_b |= rgb_out.rc_b << 4;
|
|
return Ok(rgb_out);
|
|
}
|
|
break;
|
|
case 7:
|
|
if (sscanf(sf.data(),
|
|
"#%2hx%2hx%2hx",
|
|
&rgb_out.rc_r,
|
|
&rgb_out.rc_g,
|
|
&rgb_out.rc_b)
|
|
== 3)
|
|
{
|
|
return Ok(rgb_out);
|
|
}
|
|
break;
|
|
}
|
|
|
|
return Err(fmt::format(FMT_STRING("Could not parse color: {}"), sf));
|
|
}
|
|
|
|
for (const auto& xc : xterm_colors()->tc_palette) {
|
|
if (sf.iequal(xc.xc_name)) {
|
|
return Ok(xc.xc_color);
|
|
}
|
|
}
|
|
|
|
return Err(fmt::format(
|
|
FMT_STRING(
|
|
"Unknown color: '{}'. "
|
|
"See https://jonasjacek.github.io/colors/ for a list of supported "
|
|
"color names"),
|
|
sf));
|
|
}
|
|
|
|
term_color_palette::term_color_palette(const char* name,
|
|
const string_fragment& json)
|
|
{
|
|
intern_string_t iname = intern_string::lookup(name);
|
|
auto parse_res
|
|
= root_color_handler.parser_for(iname).with_ignore_unused(true).of(
|
|
json);
|
|
|
|
if (parse_res.isErr()) {
|
|
log_error("failed to parse palette: %s -- %s",
|
|
name,
|
|
parse_res.unwrapErr()[0].to_attr_line().get_string().c_str());
|
|
}
|
|
require(parse_res.isOk());
|
|
|
|
this->tc_palette = parse_res.unwrap();
|
|
for (auto& xc : this->tc_palette) {
|
|
xc.xc_lab_color = lab_color(xc.xc_color);
|
|
}
|
|
}
|
|
|
|
short
|
|
term_color_palette::match_color(const lab_color& to_match) const
|
|
{
|
|
double lowest = 1000.0;
|
|
short lowest_id = -1;
|
|
|
|
for (auto& xc : this->tc_palette) {
|
|
double xc_delta = xc.xc_lab_color.deltaE(to_match);
|
|
|
|
if (lowest_id == -1) {
|
|
lowest = xc_delta;
|
|
lowest_id = xc.xc_id;
|
|
continue;
|
|
}
|
|
|
|
if (xc_delta < lowest) {
|
|
lowest = xc_delta;
|
|
lowest_id = xc.xc_id;
|
|
}
|
|
}
|
|
|
|
return lowest_id;
|
|
}
|
|
|
|
namespace styling {
|
|
Result<color_unit, std::string>
|
|
color_unit::from_str(const string_fragment& sf)
|
|
{
|
|
if (sf == "semantic()") {
|
|
return Ok(color_unit{semantic{}});
|
|
}
|
|
|
|
auto retval = TRY(from<rgb_color>(sf));
|
|
|
|
return Ok(color_unit{retval});
|
|
}
|
|
|
|
} // namespace styling
|