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lnav/src/view_curses.cc

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/**
* Copyright (c) 2007-2012, 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.
*
* @file view_curses.cc
*/
#include "config.h"
#include <cmath>
#include <string>
#include "auto_mem.hh"
#include "base/lnav_log.hh"
#include "view_curses.hh"
#include "ansi_scrubber.hh"
#include "lnav_config.hh"
#include "attr_line.hh"
#include "shlex.hh"
using namespace std;
string_attr_type view_curses::VC_ROLE("role");
string_attr_type view_curses::VC_STYLE("style");
string_attr_type view_curses::VC_GRAPHIC("graphic");
string_attr_type view_curses::VC_SELECTED("selected");
string_attr_type view_curses::VC_FOREGROUND("foreground");
string_attr_type view_curses::VC_BACKGROUND("background");
const struct itimerval ui_periodic_timer::INTERVAL = {
{ 0, 350 * 1000 },
{ 0, 350 * 1000 }
};
ui_periodic_timer::ui_periodic_timer()
: upt_counter(0)
{
struct sigaction sa;
sa.sa_handler = ui_periodic_timer::sigalrm;
sa.sa_flags = SA_RESTART;
sigemptyset(&sa.sa_mask);
sigaction(SIGALRM, &sa, nullptr);
if (setitimer(ITIMER_REAL, &INTERVAL, nullptr) == -1) {
perror("setitimer");
}
}
ui_periodic_timer &ui_periodic_timer::singleton()
{
static ui_periodic_timer retval;
return retval;
}
void ui_periodic_timer::sigalrm(int sig)
{
singleton().upt_counter += 1;
}
alerter &alerter::singleton() {
static alerter retval;
return retval;
}
struct utf_to_display_adjustment {
int uda_origin;
int uda_offset;
utf_to_display_adjustment(int utf_origin, int offset)
: uda_origin(utf_origin), uda_offset(offset) {
};
};
void view_curses::awaiting_user_input()
{
static const char OSC_INPUT[] = "\x1b]999;send-input\a";
write(STDOUT_FILENO, OSC_INPUT, sizeof(OSC_INPUT) - 1);
}
void view_curses::mvwattrline(WINDOW *window,
int y,
int x,
attr_line_t &al,
const struct line_range &lr_chars,
view_colors::role_t base_role)
{
attr_t text_attrs, attrs;
int line_width_chars;
string_attrs_t & sa = al.get_attrs();
string & line = al.get_string();
string_attrs_t::const_iterator iter;
vector<utf_to_display_adjustment> utf_adjustments;
int tab_count = 0;
char *expanded_line;
int exp_index = 0;
int exp_offset = 0;
string full_line;
require(lr_chars.lr_end >= 0);
line_width_chars = lr_chars.length();
tab_count = count(line.begin(), line.end(), '\t');
expanded_line = (char *)alloca(line.size() + tab_count * 8 + 1);
short *fg_color = (short *) alloca(line_width_chars * sizeof(short));
bool has_fg = false;
short *bg_color = (short *) alloca(line_width_chars * sizeof(short));
bool has_bg = false;
line_range lr_bytes{lr_chars.lr_start, lr_chars.lr_end};
int char_index = 0;
for (size_t lpc = 0; lpc < line.size(); lpc++) {
int exp_start_index = exp_index;
unsigned char ch = static_cast<unsigned char>(line[lpc]);
switch (ch) {
case '\t':
do {
expanded_line[exp_index] = ' ';
exp_index += 1;
char_index += 1;
} while (exp_index % 8);
utf_adjustments.emplace_back(lpc,
exp_index - exp_start_index - 1);
break;
case '\r':
case '\n':
expanded_line[exp_index] = ' ';
exp_index += 1;
char_index += 1;
break;
default: {
auto size_result = ww898::utf::utf8::char_size([&line, lpc]() {
return std::make_pair(line[lpc], line.length() - lpc - 1);
});
if (size_result.isErr()) {
expanded_line[exp_index] = '?';
exp_index += 1;
} else {
auto offset = 1 - (int) size_result.unwrap();
expanded_line[exp_index] = line[lpc];
exp_index += 1;
if (offset) {
if (char_index < lr_chars.lr_start) {
lr_bytes.lr_start += abs(offset);
}
if (char_index < lr_chars.lr_end) {
lr_bytes.lr_end += abs(offset);
}
exp_offset += offset;
utf_adjustments.emplace_back(lpc, offset);
for (; offset &&
(lpc + 1) < line.size(); lpc++, offset++) {
expanded_line[exp_index] = line[lpc + 1];
exp_index += 1;
}
}
}
char_index += 1;
break;
}
}
}
expanded_line[exp_index] = '\0';
full_line = string(expanded_line);
view_colors &vc = view_colors::singleton();
text_attrs = vc.attrs_for_role(base_role);
attrs = text_attrs;
wmove(window, y, x);
wattron(window, attrs);
if (lr_bytes.lr_start < (int)full_line.size()) {
waddnstr(window, &full_line.c_str()[lr_bytes.lr_start], lr_bytes.length());
}
if (lr_bytes.lr_end > (int)full_line.size()) {
whline(window, ' ', lr_bytes.lr_end - (full_line.size() + exp_offset));
}
wattroff(window, attrs);
stable_sort(sa.begin(), sa.end());
for (iter = sa.begin(); iter != sa.end(); ++iter) {
struct line_range attr_range = iter->sa_range;
require(attr_range.lr_start >= 0);
require(attr_range.lr_end >= -1);
if (!(iter->sa_type == &VC_ROLE ||
iter->sa_type == &VC_STYLE ||
iter->sa_type == &VC_GRAPHIC ||
iter->sa_type == &VC_FOREGROUND ||
iter->sa_type == &VC_BACKGROUND)) {
continue;
}
for (const auto &adj : utf_adjustments) {
// If the UTF adjustment is in the viewport, we need to adjust this
// attribute.
if (adj.uda_origin < iter->sa_range.lr_start) {
attr_range.lr_start += adj.uda_offset;
}
}
if (attr_range.lr_end != -1) {
for (const auto &adj : utf_adjustments) {
if (adj.uda_origin < iter->sa_range.lr_end) {
attr_range.lr_end += adj.uda_offset;
}
}
}
if (attr_range.lr_end == -1) {
attr_range.lr_end = lr_chars.lr_start + line_width_chars;
}
if (attr_range.lr_end < lr_chars.lr_start) {
continue;
}
attr_range.lr_start = max(0, attr_range.lr_start - lr_chars.lr_start);
if (attr_range.lr_start > line_width_chars) {
continue;
}
attr_range.lr_end = min(line_width_chars, attr_range.lr_end - lr_chars.lr_start);
if (iter->sa_type == &VC_GRAPHIC) {
for (int index = attr_range.lr_start;
index < attr_range.lr_end;
index++) {
mvwaddch(window, y, x + index, iter->sa_value.sav_int | text_attrs);
}
continue;
}
if (iter->sa_type == &VC_FOREGROUND) {
if (!has_fg) {
memset(fg_color, -1, line_width_chars * sizeof(short));
}
fill(&fg_color[attr_range.lr_start], &fg_color[attr_range.lr_end], (short) iter->sa_value.sav_int);
has_fg = true;
continue;
}
if (iter->sa_type == &VC_BACKGROUND) {
if (!has_bg) {
memset(bg_color, -1, line_width_chars * sizeof(short));
}
fill(bg_color + attr_range.lr_start, bg_color + attr_range.lr_end, (short) iter->sa_value.sav_int);
has_bg = true;
continue;
}
if (attr_range.lr_end > attr_range.lr_start) {
int awidth = attr_range.length();
int color_pair = 0;
if (iter->sa_type == &VC_STYLE) {
attrs = iter->sa_value.sav_int & ~A_COLOR;
color_pair = PAIR_NUMBER(iter->sa_value.sav_int);
} else if (iter->sa_type == &VC_ROLE) {
attrs = vc.attrs_for_role((view_colors::role_t) iter->sa_value.sav_int);
color_pair = PAIR_NUMBER(attrs);
attrs = attrs & ~A_COLOR;
}
if (attrs || color_pair > 0) {
int x_pos = x + attr_range.lr_start;
int ch_width = min(awidth, (line_width_chars - attr_range.lr_start));
cchar_t row_ch[ch_width + 1];
mvwin_wchnstr(window, y, x_pos, row_ch, ch_width);
for (int lpc = 0; lpc < ch_width; lpc++) {
bool clear_rev = false;
if (row_ch[lpc].attr & A_REVERSE && attrs & A_REVERSE) {
clear_rev = true;
}
if (color_pair > 0) {
row_ch[lpc].attr =
attrs | (row_ch[lpc].attr & ~A_COLOR);
#ifdef NCURSES_EXT_COLORS
row_ch[lpc].ext_color = color_pair;
#else
row_ch[lpc].attr |= COLOR_PAIR(color_pair);
#endif
} else {
row_ch[lpc].attr |= attrs;
}
if (clear_rev) {
row_ch[lpc].attr &= ~A_REVERSE;
}
}
mvwadd_wchnstr(window, y, x_pos, row_ch, ch_width);
}
}
}
#if 1
if (has_fg || has_bg) {
if (!has_fg) {
memset(fg_color, -1, line_width_chars * sizeof(short));
}
if (!has_bg) {
memset(bg_color, -1, line_width_chars * sizeof(short));
}
int ch_width = lr_chars.length();
cchar_t row_ch[ch_width + 1];
mvwin_wchnstr(window, y, x, row_ch, ch_width);
for (int lpc = 0; lpc < ch_width; lpc++) {
if (fg_color[lpc] == -1 && bg_color[lpc] == -1) {
continue;
}
int color_pair = vc.ensure_color_pair(fg_color[lpc], bg_color[lpc]);
row_ch[lpc].attr = row_ch[lpc].attr & ~A_COLOR;
#ifdef NCURSES_EXT_COLORS
row_ch[lpc].ext_color = color_pair;
#else
row_ch[lpc].attr |= COLOR_PAIR(color_pair);
#endif
}
mvwadd_wchnstr(window, y, x, row_ch, ch_width);
}
#endif
}
attr_t view_colors::BASIC_HL_PAIRS[view_colors::BASIC_COLOR_COUNT] = {
ansi_color_pair(COLOR_BLUE, COLOR_BLACK),
ansi_color_pair(COLOR_CYAN, COLOR_BLACK),
ansi_color_pair(COLOR_GREEN, COLOR_BLACK),
ansi_color_pair(COLOR_MAGENTA, COLOR_BLACK),
ansi_color_pair(COLOR_BLACK, COLOR_WHITE),
ansi_color_pair(COLOR_CYAN, COLOR_BLACK),
ansi_color_pair(COLOR_YELLOW, COLOR_MAGENTA) | A_BOLD,
ansi_color_pair(COLOR_MAGENTA, COLOR_CYAN) | A_BOLD,
};
view_colors &view_colors::singleton()
{
static view_colors s_vc;
return s_vc;
}
view_colors::view_colors()
: vc_color_pair_end(0)
{
}
bool view_colors::initialized = false;
static string COLOR_NAMES[] = {
"black",
"red",
"green",
"yellow",
"blue",
"magenta",
"cyan",
"white",
};
class color_listener : public lnav_config_listener {
public:
void reload_config(error_reporter &reporter) override {
if (!view_colors::initialized) {
return;
}
auto &vc = view_colors::singleton();
for (const auto &pair : lnav_config.lc_ui_theme_defs) {
vc.init_roles(pair.second, reporter);
}
auto iter = lnav_config.lc_ui_theme_defs.find(lnav_config.lc_ui_theme);
if (iter == lnav_config.lc_ui_theme_defs.end()) {
reporter(&lnav_config.lc_ui_theme,
"unknown theme -- " + lnav_config.lc_ui_theme);
vc.init_roles(lnav_config.lc_ui_theme_defs["default"], reporter);
return;
}
if (view_colors::initialized) {
vc.init_roles(iter->second, reporter);
}
}
};
static color_listener _COLOR_LISTENER;
term_color_palette *view_colors::vc_active_palette;
void view_colors::init()
{
vc_active_palette = ansi_colors();
if (has_colors()) {
static const int ansi_colors_to_curses[] = {
COLOR_BLACK,
COLOR_RED,
COLOR_GREEN,
COLOR_YELLOW,
COLOR_BLUE,
COLOR_MAGENTA,
COLOR_CYAN,
COLOR_WHITE,
};
start_color();
if (lnav_config.lc_ui_default_colors) {
use_default_colors();
}
for (int fg = 0; fg < 8; fg++) {
for (int bg = 0; bg < 8; bg++) {
if (fg == 0 && bg == 0)
continue;
if (lnav_config.lc_ui_default_colors &&
ansi_colors_to_curses[fg] == COLOR_WHITE &&
ansi_colors_to_curses[bg] == COLOR_BLACK) {
init_pair(ansi_color_pair_index(fg, bg), -1, -1);
} else {
auto curs_bg = ansi_colors_to_curses[bg];
if (lnav_config.lc_ui_default_colors &&
curs_bg == COLOR_BLACK) {
curs_bg = -1;
}
init_pair(ansi_color_pair_index(fg, bg),
ansi_colors_to_curses[fg],
curs_bg);
}
}
}
if (COLORS >= 256) {
vc_active_palette = xterm_colors();
}
}
initialized = true;
{
auto reporter = [](const void *, const std::string &) {
};
_COLOR_LISTENER.reload_config(reporter);
}
}
inline attr_t attr_for_colors(int &pair_base, short fg, short bg)
{
if (fg == -1) {
fg = COLOR_WHITE;
}
if (bg == -1) {
bg = COLOR_BLACK;
}
if (COLOR_PAIRS <= 64) {
return view_colors::ansi_color_pair(fg, bg);
} else {
if (lnav_config.lc_ui_default_colors) {
if (fg == COLOR_WHITE) {
fg = -1;
}
if (bg == COLOR_BLACK) {
bg = -1;
}
}
}
require(pair_base < COLOR_PAIRS);
int pair = ++pair_base;
if (view_colors::initialized) {
init_pair(pair, fg, bg);
}
return COLOR_PAIR(pair);
}
pair<attr_t, attr_t> view_colors::to_attrs(
int &pair_base,
const lnav_theme &lt, const style_config &sc, const style_config &fallback_sc,
lnav_config_listener::error_reporter &reporter)
{
string fg1, bg1, fg_color, bg_color;
fg1 = sc.sc_color;
if (fg1.empty()) {
fg1 = fallback_sc.sc_color;
}
bg1 = sc.sc_background_color;
if (bg1.empty()) {
bg1 = fallback_sc.sc_background_color;
}
shlex(fg1).eval(fg_color, lt.lt_vars);
shlex(bg1).eval(bg_color, lt.lt_vars);
auto fg = rgb_color::from_str(fg_color).unwrapOrElse([&](const auto& msg) {
reporter(&sc.sc_color, msg);
return rgb_color{};
});
auto bg = rgb_color::from_str(bg_color).unwrapOrElse([&](const auto& msg) {
reporter(&sc.sc_background_color, msg);
return rgb_color{};
});
attr_t retval1 = attr_for_colors(pair_base,
this->match_color(fg),
this->match_color(bg));
attr_t retval2 = 0;
if (sc.sc_underline) {
retval1 |= A_UNDERLINE;
retval2 |= A_UNDERLINE;
}
if (sc.sc_bold) {
retval1 |= A_BOLD;
retval2 |= A_BOLD;
}
return make_pair(retval1, retval2);
}
void view_colors::init_roles(const lnav_theme &lt,
lnav_config_listener::error_reporter &reporter)
{
int color_pair_base = VC_ANSI_END;
rgb_color fg, bg;
string err;
if (COLORS == 256) {
const style_config &ident_sc = lt.lt_style_identifier;
int ident_bg = (lnav_config.lc_ui_default_colors ? -1 : COLOR_BLACK);
if (!ident_sc.sc_background_color.empty()) {
string bg_color;
shlex(ident_sc.sc_background_color).eval(bg_color, lt.lt_vars);
auto rgb_bg = rgb_color::from_str(bg_color)
.unwrapOrElse([&](const auto& msg) {
reporter(&ident_sc.sc_background_color, msg);
return rgb_color{};
});
ident_bg = vc_active_palette->match_color(lab_color(rgb_bg));
}
for (int z = 0; z < 6; z++) {
for (int x = 1; x < 6; x += 2) {
for (int y = 1; y < 6; y += 2) {
int fg = 16 + x + (y * 6) + (z * 6 * 6);
init_pair(color_pair_base, fg, ident_bg);
color_pair_base += 1;
}
}
}
} else {
color_pair_base = VC_ANSI_END + HI_COLOR_COUNT;
}
/* Setup the mappings from roles to actual colors. */
this->vc_role_colors[VCR_TEXT] = this->to_attrs(color_pair_base,
lt, lt.lt_style_text, lt.lt_style_text, reporter);
{
int pnum = PAIR_NUMBER(this->vc_role_colors[VCR_TEXT].first);
short text_fg, text_bg;
pair_content(pnum, &text_fg, &text_bg);
for (int ansi_fg = 0; ansi_fg < 8; ansi_fg++) {
for (int ansi_bg = 0; ansi_bg < 8; ansi_bg++) {
if (ansi_fg == 0 && ansi_bg == 0) {
continue;
}
auto fg_str = lt.lt_vars.find(COLOR_NAMES[ansi_fg]);
auto bg_str = lt.lt_vars.find(COLOR_NAMES[ansi_bg]);
auto rgb_fg = rgb_color::from_str(fg_str->second)
.unwrapOrElse([&](const auto& msg) {
reporter(&fg_str->second, msg);
return rgb_color{};
});
auto rgb_bg = rgb_color::from_str(bg_str->second)
.unwrapOrElse([&](const auto& msg) {
reporter(&fg_str->second, msg);
return rgb_color{};
});
short fg = vc_active_palette->match_color(lab_color(rgb_fg));
short bg = vc_active_palette->match_color(lab_color(rgb_bg));
if (rgb_fg.empty()) {
fg = ansi_fg;
}
if (rgb_bg.empty()) {
bg = ansi_bg;
}
this->vc_ansi_to_theme[ansi_fg] = fg;
if (lnav_config.lc_ui_default_colors && bg == COLOR_BLACK) {
bg = -1;
if (fg == COLOR_WHITE) {
fg = -1;
}
}
init_pair(ansi_color_pair_index(ansi_fg, ansi_bg), fg, bg);
}
}
}
if (lnav_config.lc_ui_dim_text) {
this->vc_role_colors[VCR_TEXT].first |= A_DIM;
this->vc_role_colors[VCR_TEXT].second |= A_DIM;
}
this->vc_role_colors[VCR_SEARCH] = make_pair(A_REVERSE, A_REVERSE);
this->vc_role_colors[VCR_OK] = this->to_attrs(color_pair_base,
lt, lt.lt_style_ok,
lt.lt_style_text,
reporter);
this->vc_role_colors[VCR_ERROR] = this->to_attrs(color_pair_base,
lt, lt.lt_style_error,
lt.lt_style_text,
reporter);
this->vc_role_colors[VCR_WARNING] = this->to_attrs(color_pair_base,
lt, lt.lt_style_warning,
lt.lt_style_text,
reporter);
this->vc_role_colors[VCR_ALT_ROW] = this->to_attrs(color_pair_base,
lt, lt.lt_style_alt_text,
lt.lt_style_text,
reporter);
this->vc_role_colors[VCR_HIDDEN] = this->to_attrs(color_pair_base,
lt, lt.lt_style_hidden,
lt.lt_style_text,
reporter);
this->vc_role_colors[VCR_ADJUSTED_TIME] = this->to_attrs(
color_pair_base, lt, lt.lt_style_adjusted_time, lt.lt_style_text, reporter);
this->vc_role_colors[VCR_SKEWED_TIME] = this->to_attrs(
color_pair_base, lt, lt.lt_style_skewed_time, lt.lt_style_text, reporter);
this->vc_role_colors[VCR_OFFSET_TIME] = this->to_attrs(
color_pair_base, lt, lt.lt_style_offset_time, lt.lt_style_text, reporter);
this->vc_role_colors[VCR_INVALID_MSG] = this->to_attrs(
color_pair_base, lt, lt.lt_style_invalid_msg, lt.lt_style_text, reporter);
this->vc_role_colors[VCR_STATUS] = this->to_attrs(color_pair_base,
lt, lt.lt_style_status, lt.lt_style_status, reporter);
this->vc_role_colors[VCR_WARN_STATUS] = this->to_attrs(color_pair_base,
lt, lt.lt_style_warn_status, lt.lt_style_status, reporter);
this->vc_role_colors[VCR_ALERT_STATUS] = this->to_attrs(color_pair_base,
lt, lt.lt_style_alert_status, lt.lt_style_status, reporter);
this->vc_role_colors[VCR_ACTIVE_STATUS] = this->to_attrs(color_pair_base,
lt, lt.lt_style_active_status, lt.lt_style_status, reporter);
this->vc_role_colors[VCR_ACTIVE_STATUS2] =
make_pair(this->vc_role_colors[VCR_ACTIVE_STATUS].first | A_BOLD,
this->vc_role_colors[VCR_ACTIVE_STATUS].second | A_BOLD);
this->vc_role_colors[VCR_STATUS_TITLE] = this->to_attrs(
color_pair_base, lt, lt.lt_style_status_title, lt.lt_style_status, reporter);
this->vc_role_colors[VCR_STATUS_SUBTITLE] = this->to_attrs(
color_pair_base, lt, lt.lt_style_status_subtitle, lt.lt_style_status, reporter);
this->vc_role_colors[VCR_STATUS_HOTKEY] = this->to_attrs(
color_pair_base, lt, lt.lt_style_status_hotkey, lt.lt_style_status,
reporter);
this->vc_role_colors[VCR_STATUS_TITLE_HOTKEY] = this->to_attrs(
color_pair_base, lt, lt.lt_style_status_title_hotkey, lt.lt_style_status,
reporter);
this->vc_role_colors[VCR_STATUS_DISABLED_TITLE] = this->to_attrs(
color_pair_base, lt, lt.lt_style_status_disabled_title, lt.lt_style_status,
reporter);
{
style_config stitch_sc;
stitch_sc.sc_color = lt.lt_style_status_subtitle.sc_background_color;
stitch_sc.sc_background_color =
lt.lt_style_status_title.sc_background_color;
this->vc_role_colors[VCR_STATUS_STITCH_TITLE_TO_SUB] =
this->to_attrs(color_pair_base, lt, stitch_sc, lt.lt_style_status, reporter);
}
{
style_config stitch_sc;
stitch_sc.sc_color = lt.lt_style_status_title.sc_background_color;
stitch_sc.sc_background_color =
lt.lt_style_status_subtitle.sc_background_color;
this->vc_role_colors[VCR_STATUS_STITCH_SUB_TO_TITLE] =
this->to_attrs(color_pair_base, lt, stitch_sc, lt.lt_style_status, reporter);
}
{
style_config stitch_sc;
stitch_sc.sc_color = lt.lt_style_status.sc_background_color;
stitch_sc.sc_background_color =
lt.lt_style_status_subtitle.sc_background_color;
this->vc_role_colors[VCR_STATUS_STITCH_SUB_TO_NORMAL] =
this->to_attrs(color_pair_base, lt, stitch_sc, lt.lt_style_status, reporter);
}
{
style_config stitch_sc;
stitch_sc.sc_color = lt.lt_style_status_subtitle.sc_background_color;
stitch_sc.sc_background_color =
lt.lt_style_status.sc_background_color;
this->vc_role_colors[VCR_STATUS_STITCH_NORMAL_TO_SUB] =
this->to_attrs(color_pair_base, lt, stitch_sc, lt.lt_style_status, reporter);
}
{
style_config stitch_sc;
stitch_sc.sc_color = lt.lt_style_status.sc_background_color;
stitch_sc.sc_background_color =
lt.lt_style_status_title.sc_background_color;
this->vc_role_colors[VCR_STATUS_STITCH_TITLE_TO_NORMAL] =
this->to_attrs(color_pair_base, lt, stitch_sc, lt.lt_style_status, reporter);
}
{
style_config stitch_sc;
stitch_sc.sc_color = lt.lt_style_status_title.sc_background_color;
stitch_sc.sc_background_color =
lt.lt_style_status.sc_background_color;
this->vc_role_colors[VCR_STATUS_STITCH_NORMAL_TO_TITLE] =
this->to_attrs(color_pair_base, lt, stitch_sc, lt.lt_style_status, reporter);
}
this->vc_role_colors[VCR_INACTIVE_STATUS] = this->to_attrs(color_pair_base,
lt, lt.lt_style_inactive_status, lt.lt_style_status, reporter);
this->vc_role_colors[VCR_POPUP] = this->to_attrs(
color_pair_base, lt, lt.lt_style_popup, lt.lt_style_text, reporter);
this->vc_role_colors[VCR_COLOR_HINT] = make_pair(
COLOR_PAIR(color_pair_base), COLOR_PAIR(color_pair_base + 1));
color_pair_base += 2;
this->vc_role_colors[VCR_SCROLLBAR] = this->to_attrs(
color_pair_base, lt, lt.lt_style_scrollbar, lt.lt_style_status, reporter);
{
style_config bar_sc;
bar_sc.sc_color = lt.lt_style_error.sc_color;
bar_sc.sc_background_color = lt.lt_style_scrollbar.sc_background_color;
this->vc_role_colors[VCR_SCROLLBAR_ERROR] = this->to_attrs(
color_pair_base, lt, bar_sc, lt.lt_style_alert_status, reporter);
}
{
style_config bar_sc;
bar_sc.sc_color = lt.lt_style_warning.sc_color;
bar_sc.sc_background_color = lt.lt_style_scrollbar.sc_background_color;
this->vc_role_colors[VCR_SCROLLBAR_WARNING] = this->to_attrs(
color_pair_base, lt, bar_sc, lt.lt_style_warn_status, reporter);
}
this->vc_role_colors[VCR_KEYWORD] = this->to_attrs(color_pair_base,
lt, lt.lt_style_keyword, lt.lt_style_text, reporter);
this->vc_role_colors[VCR_STRING] = this->to_attrs(color_pair_base,
lt, lt.lt_style_string, lt.lt_style_text, reporter);
this->vc_role_colors[VCR_COMMENT] = this->to_attrs(color_pair_base,
lt, lt.lt_style_comment, lt.lt_style_text, reporter);
this->vc_role_colors[VCR_DOC_DIRECTIVE] = this->to_attrs(color_pair_base,
lt, lt.lt_style_doc_directive, lt.lt_style_text, reporter);
this->vc_role_colors[VCR_VARIABLE] = this->to_attrs(color_pair_base,
lt, lt.lt_style_variable, lt.lt_style_text, reporter);
this->vc_role_colors[VCR_SYMBOL] = this->to_attrs(color_pair_base,
lt, lt.lt_style_symbol, lt.lt_style_text, reporter);
this->vc_role_colors[VCR_NUMBER] = this->to_attrs(
color_pair_base, lt, lt.lt_style_number, lt.lt_style_text, reporter);
this->vc_role_colors[VCR_RE_SPECIAL] = this->to_attrs(
color_pair_base, lt, lt.lt_style_re_special, lt.lt_style_text, reporter);
this->vc_role_colors[VCR_RE_REPEAT] = this->to_attrs(
color_pair_base, lt, lt.lt_style_re_repeat, lt.lt_style_text, reporter);
this->vc_role_colors[VCR_FILE] = this->to_attrs(color_pair_base,
lt, lt.lt_style_file, lt.lt_style_text, reporter);
this->vc_role_colors[VCR_DIFF_DELETE] = this->to_attrs(
color_pair_base, lt, lt.lt_style_diff_delete, lt.lt_style_text, reporter);
this->vc_role_colors[VCR_DIFF_ADD] = this->to_attrs(
color_pair_base, lt, lt.lt_style_diff_add, lt.lt_style_text, reporter);
this->vc_role_colors[VCR_DIFF_SECTION] = this->to_attrs(
color_pair_base, lt, lt.lt_style_diff_section, lt.lt_style_text, reporter);
this->vc_role_colors[VCR_LOW_THRESHOLD] = this->to_attrs(
color_pair_base, lt, lt.lt_style_low_threshold, lt.lt_style_text, reporter);
this->vc_role_colors[VCR_MED_THRESHOLD] = this->to_attrs(
color_pair_base, lt, lt.lt_style_med_threshold, lt.lt_style_text, reporter);
this->vc_role_colors[VCR_HIGH_THRESHOLD] = this->to_attrs(
color_pair_base, lt, lt.lt_style_high_threshold, lt.lt_style_text, reporter);
for (log_level_t level = static_cast<log_level_t>(LEVEL_UNKNOWN + 1);
level < LEVEL__MAX;
level = static_cast<log_level_t>(level + 1)) {
auto level_iter = lt.lt_level_styles.find(level);
if (level_iter == lt.lt_level_styles.end()) {
this->vc_level_attrs[level] = this->to_attrs(
color_pair_base, lt, lt.lt_style_text, lt.lt_style_text, reporter);
} else {
this->vc_level_attrs[level] = this->to_attrs(
color_pair_base, lt, level_iter->second, lt.lt_style_text, reporter);
}
}
if (initialized && this->vc_color_pair_end == 0) {
this->vc_color_pair_end = color_pair_base + 1;
}
this->vc_dyn_pairs.clear();
}
int view_colors::ensure_color_pair(int &pair_base, short fg, short bg)
{
require(fg >= -1);
require(bg >= -1);
auto index_pair = make_pair(fg, bg);
auto existing = this->vc_dyn_pairs.find(index_pair);
if (existing != this->vc_dyn_pairs.end()) {
return existing->second;
}
short def_pair = PAIR_NUMBER(this->attrs_for_role(VCR_TEXT));
short def_fg, def_bg;
pair_content(def_pair, &def_fg, &def_bg);
int retval = PAIR_NUMBER(attr_for_colors(
pair_base,
fg == -1 ? def_fg : fg,
bg == -1 ? def_bg : bg));
if (initialized) {
this->vc_dyn_pairs[index_pair] = retval;
}
return retval;
}
int view_colors::ensure_color_pair(int &pair_base, const rgb_color &rgb_fg, const rgb_color &rgb_bg)
{
int fg = this->match_color(rgb_fg);
int bg = this->match_color(rgb_bg);
return this->ensure_color_pair(pair_base, fg, bg);
}
int view_colors::match_color(const rgb_color &color)
{
if (color.empty()) {
return -1;
}
return vc_active_palette->match_color(lab_color(color));
}
attr_t view_colors::attrs_for_ident(const char *str, size_t len) const
{
unsigned long index = crc32(1, (const Bytef*)str, len);
attr_t retval;
if (COLORS >= 256) {
unsigned long offset = index % HI_COLOR_COUNT;
retval = COLOR_PAIR(VC_ANSI_END + offset);
short fg, bg;
int pnum = PAIR_NUMBER(retval);
pair_content(pnum, &fg, &bg);
}
else {
retval = A_BOLD;
}
return retval;
}
lab_color::lab_color(const rgb_color &rgb)
{
double r = rgb.rc_r / 255.0,
g = rgb.rc_g / 255.0,
b = rgb.rc_b / 255.0,
x, y, z;
r = (r > 0.04045) ? pow((r + 0.055) / 1.055, 2.4) : r / 12.92;
g = (g > 0.04045) ? pow((g + 0.055) / 1.055, 2.4) : g / 12.92;
b = (b > 0.04045) ? pow((b + 0.055) / 1.055, 2.4) : b / 12.92;
x = (r * 0.4124 + g * 0.3576 + b * 0.1805) / 0.95047;
y = (r * 0.2126 + g * 0.7152 + b * 0.0722) / 1.00000;
z = (r * 0.0193 + g * 0.1192 + b * 0.9505) / 1.08883;
x = (x > 0.008856) ? pow(x, 1.0/3.0) : (7.787 * x) + 16.0/116.0;
y = (y > 0.008856) ? pow(y, 1.0/3.0) : (7.787 * y) + 16.0/116.0;
z = (z > 0.008856) ? pow(z, 1.0/3.0) : (7.787 * z) + 16.0/116.0;
this->lc_l = (116.0 * y) - 16;
this->lc_a = 500.0 * (x - y);
this->lc_b = 200.0 * (y - z);
}
double lab_color::deltaE(const lab_color &other) const
{
double deltaL = this->lc_l - other.lc_l;
double deltaA = this->lc_a - other.lc_a;
double deltaB = this->lc_b - other.lc_b;
double c1 = sqrt(this->lc_a * this->lc_a + this->lc_b * this->lc_b);
double c2 = sqrt(other.lc_a * other.lc_a + other.lc_b * other.lc_b);
double deltaC = c1 - c2;
double deltaH = deltaA * deltaA + deltaB * deltaB - deltaC * deltaC;
deltaH = deltaH < 0.0 ? 0.0 : sqrt(deltaH);
double sc = 1.0 + 0.045 * c1;
double sh = 1.0 + 0.015 * c1;
double deltaLKlsl = deltaL / (1.0);
double deltaCkcsc = deltaC / (sc);
double deltaHkhsh = deltaH / (sh);
double i = deltaLKlsl * deltaLKlsl + deltaCkcsc * deltaCkcsc + deltaHkhsh * deltaHkhsh;
return i < 0.0 ? 0.0 : sqrt(i);
}
bool lab_color::operator<(const lab_color &rhs) const
{
if (lc_l < rhs.lc_l)
return true;
if (rhs.lc_l < lc_l)
return false;
if (lc_a < rhs.lc_a)
return true;
if (rhs.lc_a < lc_a)
return false;
return lc_b < rhs.lc_b;
}
bool lab_color::operator>(const lab_color &rhs) const
{
return rhs < *this;
}
bool lab_color::operator<=(const lab_color &rhs) const
{
return !(rhs < *this);
}
bool lab_color::operator>=(const lab_color &rhs) const
{
return !(*this < rhs);
}
bool lab_color::operator==(const lab_color &rhs) const
{
return lc_l == rhs.lc_l &&
lc_a == rhs.lc_a &&
lc_b == rhs.lc_b;
}
bool lab_color::operator!=(const lab_color &rhs) const
{
return !(rhs == *this);
}
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