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lnav/src/view_curses.cc

1366 lines
48 KiB
C++

/**
* 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
*/
#ifdef __CYGWIN__
# include <alloca.h>
#endif
#include <chrono>
#include <cmath>
#include <string>
#include "base/ansi_scrubber.hh"
#include "base/attr_line.hh"
#include "base/from_trait.hh"
#include "base/injector.hh"
#include "base/itertools.hh"
#include "base/lnav_log.hh"
#include "config.h"
#include "lnav_config.hh"
#include "shlex.hh"
#include "view_curses.hh"
#include "xterm_mouse.hh"
#if defined HAVE_NCURSESW_CURSES_H
# include <ncursesw/term.h>
#elif defined HAVE_NCURSESW_H
# include <term.h>
#elif defined HAVE_NCURSES_CURSES_H
# include <ncurses/term.h>
#elif defined HAVE_NCURSES_H
# include <term.h>
#elif defined HAVE_CURSES_H
# include <term.h>
#else
# error "SysV or X/Open-compatible Curses header file required"
#endif
using namespace std::chrono_literals;
const struct itimerval ui_periodic_timer::INTERVAL = {
{0, std::chrono::duration_cast<std::chrono::microseconds>(350ms).count()},
{0, std::chrono::duration_cast<std::chrono::microseconds>(350ms).count()},
};
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;
}
bool
alerter::chime(std::string msg)
{
if (!this->a_enabled) {
return true;
}
bool retval = this->a_do_flash;
if (this->a_do_flash) {
log_warning("chime message: %s", msg.c_str());
::flash();
}
this->a_do_flash = false;
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)
{
}
};
bool
mouse_event::is_click_in(mouse_button_t button, int x_start, int x_end) const
{
return this->me_button == button
&& this->me_state == mouse_button_state_t::BUTTON_STATE_RELEASED
&& (x_start <= this->me_x && this->me_x <= x_end)
&& (x_start <= this->me_press_x && this->me_press_x <= x_end)
&& this->me_y == this->me_press_y;
}
bool
mouse_event::is_press_in(mouse_button_t button, line_range lr) const
{
return this->me_button == button
&& this->me_state == mouse_button_state_t::BUTTON_STATE_PRESSED
&& lr.contains(this->me_x);
}
bool
mouse_event::is_drag_in(mouse_button_t button, line_range lr) const
{
return this->me_button == button
&& this->me_state == mouse_button_state_t::BUTTON_STATE_DRAGGED
&& lr.contains(this->me_press_x) && lr.contains(this->me_x);
}
bool
mouse_event::is_double_click_in(mouse_button_t button, line_range lr) const
{
return this->me_button == button
&& this->me_state == mouse_button_state_t::BUTTON_STATE_DOUBLE_CLICK
&& lr.contains(this->me_x) && this->me_y == this->me_press_y;
}
bool
view_curses::handle_mouse(mouse_event& me)
{
if (me.me_state != mouse_button_state_t::BUTTON_STATE_DRAGGED) {
this->vc_last_drag_child = nullptr;
}
for (auto* child : this->vc_children) {
auto x = this->vc_x + me.me_x;
auto y = this->vc_y + me.me_y;
if ((me.me_state == mouse_button_state_t::BUTTON_STATE_DRAGGED
&& child == this->vc_last_drag_child && child->vc_x <= x
&& x < (child->vc_x + child->vc_width))
|| child->contains(x, y))
{
auto sub_me = me;
sub_me.me_x = x - child->vc_x;
sub_me.me_y = y - child->vc_y;
sub_me.me_press_x = this->vc_x + me.me_press_x - child->vc_x;
sub_me.me_press_y = this->vc_y + me.me_press_y - child->vc_y;
if (me.me_state == mouse_button_state_t::BUTTON_STATE_DRAGGED) {
this->vc_last_drag_child = child;
}
return child->handle_mouse(sub_me);
}
}
return false;
}
bool
view_curses::contains(int x, int y) const
{
if (!this->vc_visible) {
return false;
}
for (auto* child : this->vc_children) {
if (child->contains(x, y)) {
return true;
}
}
if (this->vc_x <= x
&& (this->vc_width < 0 || x < this->vc_x + this->vc_width)
&& this->vc_y == y)
{
return true;
}
return false;
}
void
view_curses::awaiting_user_input()
{
static const bool enabled = getenv("lnav_test") != nullptr;
static const char OSC_INPUT[] = "\x1b]999;send-input\a";
if (enabled) {
write(STDOUT_FILENO, OSC_INPUT, sizeof(OSC_INPUT) - 1);
}
}
view_curses::mvwattrline_result
view_curses::mvwattrline(WINDOW* window,
int y,
const int x,
attr_line_t& al,
const struct line_range& lr_chars,
role_t base_role)
{
auto& sa = al.get_attrs();
const auto& line = al.get_string();
std::vector<utf_to_display_adjustment> utf_adjustments;
std::string full_line;
require(lr_chars.lr_end >= 0);
mvwattrline_result retval;
auto line_width_chars = lr_chars.length();
std::string expanded_line;
line_range lr_bytes;
int char_index = 0;
for (size_t lpc = 0; lpc < line.size();) {
int exp_start_index = expanded_line.size();
auto ch = static_cast<unsigned char>(line[lpc]);
if (char_index == lr_chars.lr_start) {
lr_bytes.lr_start = exp_start_index;
} else if (char_index == lr_chars.lr_end) {
lr_bytes.lr_end = exp_start_index;
retval.mr_chars_out = char_index;
}
switch (ch) {
case '\t': {
do {
expanded_line.push_back(' ');
char_index += 1;
if (char_index == lr_chars.lr_start) {
lr_bytes.lr_start = expanded_line.size();
}
if (char_index == lr_chars.lr_end) {
lr_bytes.lr_end = expanded_line.size();
retval.mr_chars_out = char_index;
}
} while (expanded_line.size() % 8);
utf_adjustments.emplace_back(
lpc, expanded_line.size() - exp_start_index - 1);
lpc += 1;
break;
}
case '\x1b':
expanded_line.append("\u238b");
utf_adjustments.emplace_back(lpc, -1);
char_index += 1;
lpc += 1;
break;
case '\b':
expanded_line.append("\u232b");
utf_adjustments.emplace_back(lpc, -1);
char_index += 1;
lpc += 1;
break;
case '\x07':
expanded_line.append("\U0001F514");
utf_adjustments.emplace_back(lpc, -1);
char_index += 1;
lpc += 1;
break;
case '\r':
case '\n':
expanded_line.push_back(' ');
char_index += 1;
lpc += 1;
break;
default: {
auto exp_read_start = expanded_line.size();
auto lpc_start = lpc;
auto read_res
= ww898::utf::utf8::read([&line, &expanded_line, &lpc]() {
auto ch = line[lpc++];
expanded_line.push_back(ch);
return ch;
});
if (read_res.isErr()) {
log_trace(
"error:%d:%d:%s", y, x + lpc, read_res.unwrapErr());
expanded_line.resize(exp_read_start);
expanded_line.push_back('?');
char_index += 1;
lpc = lpc_start + 1;
} else {
if (lpc > (lpc_start + 1)) {
utf_adjustments.emplace_back(lpc_start,
1 - (lpc - lpc_start));
}
auto wch = read_res.unwrap();
auto wcw_res = wcwidth(wch);
if (wcw_res < 0) {
wcw_res = 1;
}
char_index += wcw_res;
if (lr_bytes.lr_end == -1 && char_index > lr_chars.lr_end) {
lr_bytes.lr_end = exp_start_index;
retval.mr_chars_out = char_index - wcw_res;
}
}
break;
}
}
}
if (lr_bytes.lr_start == -1) {
lr_bytes.lr_start = expanded_line.size();
}
if (lr_bytes.lr_end == -1) {
lr_bytes.lr_end = expanded_line.size();
}
if (retval.mr_chars_out == 0) {
retval.mr_chars_out = char_index;
}
retval.mr_bytes_remaining = expanded_line.size() - lr_bytes.lr_end;
full_line = expanded_line;
auto& vc = view_colors::singleton();
auto base_attrs = vc.attrs_for_role(base_role);
wmove(window, y, x);
wattr_set(
window,
base_attrs.ta_attrs,
vc.ensure_color_pair(base_attrs.ta_fg_color, base_attrs.ta_bg_color),
nullptr);
if (lr_bytes.lr_start < (int) full_line.size()) {
waddnstr(
window, &full_line.c_str()[lr_bytes.lr_start], lr_bytes.length());
}
if (lr_chars.lr_end > char_index) {
whline(window, ' ', lr_chars.lr_end - char_index);
}
cchar_t row_ch[line_width_chars + 1];
short fg_color[line_width_chars + 1];
short bg_color[line_width_chars + 1];
memset(fg_color, -1, sizeof(fg_color));
memset(bg_color, -1, sizeof(bg_color));
mvwin_wchnstr(window, y, x, row_ch, line_width_chars);
std::stable_sort(sa.begin(), sa.end());
for (auto iter = sa.cbegin(); iter != sa.cend(); ++iter) {
auto 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_ROLE_FG
|| iter->sa_type == &VC_STYLE || iter->sa_type == &VC_GRAPHIC
|| iter->sa_type == &SA_LEVEL || iter->sa_type == &VC_FOREGROUND
|| iter->sa_type == &VC_BACKGROUND
|| iter->sa_type == &VC_BLOCK_ELEM))
{
continue;
}
if (attr_range.lr_unit == line_range::unit::bytes) {
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
= std::max(0, attr_range.lr_start - lr_chars.lr_start);
if (attr_range.lr_start > line_width_chars) {
continue;
}
attr_range.lr_end
= std::min(line_width_chars, attr_range.lr_end - lr_chars.lr_start);
if (iter->sa_type == &VC_FOREGROUND) {
short attr_fg = iter->sa_value.get<int64_t>();
if (attr_fg == view_colors::MATCH_COLOR_SEMANTIC) {
attr_fg = vc.color_for_ident(al.to_string_fragment(iter))
.value_or(view_colors::MATCH_COLOR_DEFAULT);
} else if (attr_fg < 8) {
attr_fg = vc.ansi_to_theme_color(attr_fg);
}
std::fill(&fg_color[attr_range.lr_start],
&fg_color[attr_range.lr_end],
attr_fg);
continue;
}
if (iter->sa_type == &VC_BACKGROUND) {
short attr_bg = iter->sa_value.get<int64_t>();
if (attr_bg == view_colors::MATCH_COLOR_SEMANTIC) {
attr_bg = vc.color_for_ident(al.to_string_fragment(iter))
.value_or(view_colors::MATCH_COLOR_DEFAULT);
}
std::fill(bg_color + attr_range.lr_start,
bg_color + attr_range.lr_end,
attr_bg);
continue;
}
if (attr_range.lr_start < attr_range.lr_end) {
auto attrs = text_attrs{};
std::optional<char> graphic;
std::optional<wchar_t> block_elem;
if (iter->sa_type == &VC_GRAPHIC) {
graphic = iter->sa_value.get<int64_t>();
attrs = text_attrs{};
} else if (iter->sa_type == &VC_BLOCK_ELEM) {
auto be = iter->sa_value.get<block_elem_t>();
block_elem = be.value;
attrs = vc.attrs_for_role(be.role);
} else if (iter->sa_type == &VC_STYLE) {
attrs = iter->sa_value.get<text_attrs>();
} else if (iter->sa_type == &SA_LEVEL) {
attrs = vc.attrs_for_level(
(log_level_t) iter->sa_value.get<int64_t>());
} else if (iter->sa_type == &VC_ROLE) {
auto role = iter->sa_value.get<role_t>();
attrs = vc.attrs_for_role(role);
if (role == role_t::VCR_SELECTED_TEXT) {
retval.mr_selected_text
= string_fragment::from_str(line).sub_range(
iter->sa_range.lr_start, iter->sa_range.lr_end);
}
} else if (iter->sa_type == &VC_ROLE_FG) {
auto role_attrs
= vc.attrs_for_role(iter->sa_value.get<role_t>());
attrs.ta_fg_color = role_attrs.ta_fg_color;
}
if (graphic || block_elem || !attrs.empty()) {
if (attrs.ta_attrs & (A_LEFT | A_RIGHT)) {
if (attrs.ta_attrs & A_LEFT) {
attrs.ta_fg_color
= vc.color_for_ident(al.to_string_fragment(iter));
}
if (attrs.ta_attrs & A_RIGHT) {
attrs.ta_bg_color
= vc.color_for_ident(al.to_string_fragment(iter));
}
attrs.ta_attrs &= ~(A_LEFT | A_RIGHT);
}
if (attrs.ta_fg_color) {
std::fill(&fg_color[attr_range.lr_start],
&fg_color[attr_range.lr_end],
attrs.ta_fg_color.value());
}
if (attrs.ta_bg_color) {
std::fill(&bg_color[attr_range.lr_start],
&bg_color[attr_range.lr_end],
attrs.ta_bg_color.value());
}
for (int lpc = attr_range.lr_start;
lpc < attr_range.lr_end && lpc < line_width_chars;
lpc++)
{
bool clear_rev = false;
if (graphic) {
row_ch[lpc].chars[0] = graphic.value();
row_ch[lpc].attr |= A_ALTCHARSET;
}
if (block_elem) {
row_ch[lpc].chars[0] = block_elem.value();
}
if (row_ch[lpc].attr & A_REVERSE
&& attrs.ta_attrs & A_REVERSE)
{
clear_rev = true;
}
row_ch[lpc].attr |= attrs.ta_attrs;
if (clear_rev) {
row_ch[lpc].attr &= ~A_REVERSE;
}
}
}
}
}
for (int lpc = 0; lpc < line_width_chars; lpc++) {
if (fg_color[lpc] == -1 && bg_color[lpc] == -1) {
continue;
}
#ifdef NCURSES_EXT_COLORS
auto cur_pair = row_ch[lpc].ext_color;
#else
auto cur_pair = PAIR_NUMBER(row_ch[lpc].attr);
#endif
short cur_fg, cur_bg;
pair_content(cur_pair, &cur_fg, &cur_bg);
auto desired_fg = fg_color[lpc] != -1 ? fg_color[lpc] : cur_fg;
auto desired_bg = bg_color[lpc] != -1 ? bg_color[lpc] : cur_bg;
if (desired_fg >= COLOR_BLACK && desired_fg <= COLOR_WHITE) {
desired_fg = vc.ansi_to_theme_color(desired_fg);
}
if (desired_bg >= COLOR_BLACK && desired_bg <= COLOR_WHITE) {
desired_bg = vc.ansi_to_theme_color(desired_bg);
}
if (desired_fg == desired_bg) {
if (desired_bg >= 0
&& desired_bg
< view_colors::vc_active_palette->tc_palette.size())
{
auto adjusted_color
= view_colors::vc_active_palette->tc_palette[desired_bg]
.xc_lab_color;
if (adjusted_color.lc_l < 50.0) {
adjusted_color.lc_l += 50.0;
} else {
adjusted_color.lc_l -= 50.0;
}
bg_color[lpc] = view_colors::vc_active_palette->match_color(
adjusted_color);
}
} else if (fg_color[lpc] >= 0
&& fg_color[lpc]
< view_colors::vc_active_palette->tc_palette.size()
&& bg_color[lpc] == -1
&& base_attrs.ta_bg_color.value_or(0) >= 0
&& base_attrs.ta_bg_color.value_or(0)
< view_colors::vc_active_palette->tc_palette.size())
{
const auto& fg_color_info
= view_colors::vc_active_palette->tc_palette.at(fg_color[lpc]);
const auto& bg_color_info
= view_colors::vc_active_palette->tc_palette.at(
base_attrs.ta_bg_color.value_or(0));
if (!fg_color_info.xc_lab_color.sufficient_contrast(
bg_color_info.xc_lab_color))
{
auto adjusted_color = bg_color_info.xc_lab_color;
adjusted_color.lc_l = std::max(0.0, adjusted_color.lc_l - 40.0);
auto new_bg = view_colors::vc_active_palette->match_color(
adjusted_color);
for (int lpc2 = lpc; lpc2 < line_width_chars; lpc2++) {
if (fg_color[lpc2] == fg_color[lpc] && bg_color[lpc2] == -1)
{
bg_color[lpc2] = new_bg;
}
}
}
}
if (fg_color[lpc] == -1) {
fg_color[lpc] = cur_fg;
}
if (bg_color[lpc] == -1) {
bg_color[lpc] = cur_bg;
}
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, line_width_chars);
return retval;
}
constexpr short view_colors::MATCH_COLOR_DEFAULT;
constexpr short view_colors::MATCH_COLOR_SEMANTIC;
view_colors&
view_colors::singleton()
{
static view_colors s_vc;
return s_vc;
}
view_colors::
view_colors()
: vc_dyn_pairs(0)
{
size_t color_index = 0;
for (int z = 0; z < 6; z++) {
for (int x = 1; x < 6; x += 2) {
for (int y = 1; y < 6; y += 2) {
short fg = 16 + x + (y * 6) + (z * 6 * 6);
this->vc_highlight_colors[color_index++] = fg;
}
}
}
}
bool view_colors::initialized = false;
static const std::string COLOR_NAMES[] = {
"black",
"red",
"green",
"yellow",
"blue",
"magenta",
"cyan",
"white",
};
class ui_listener : public lnav_config_listener {
public:
ui_listener() : lnav_config_listener(__FILE__) {}
void reload_config(error_reporter& reporter) override
{
if (!view_colors::initialized) {
view_colors::vc_active_palette = ansi_colors();
}
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()) {
auto theme_names
= lnav_config.lc_ui_theme_defs | lnav::itertools::first();
reporter(&lnav_config.lc_ui_theme,
lnav::console::user_message::error(
attr_line_t("unknown theme -- ")
.append_quoted(lnav_config.lc_ui_theme))
.with_help(attr_line_t("The available themes are: ")
.join(theme_names, ", ")));
vc.init_roles(lnav_config.lc_ui_theme_defs["default"], reporter);
return;
}
if (view_colors::initialized) {
vc.init_roles(iter->second, reporter);
if (stdscr) {
auto& mouse_i = injector::get<xterm_mouse&>();
mouse_i.set_enabled(check_experimental("mouse")
|| lnav_config.lc_mouse_mode
== lnav_mouse_mode::enabled);
}
}
}
};
static ui_listener _UI_LISTENER;
term_color_palette* view_colors::vc_active_palette;
void
view_colors::init(bool headless)
{
vc_active_palette = ansi_colors();
if (!headless && has_colors()) {
start_color();
if (lnav_config.lc_ui_default_colors) {
use_default_colors();
}
if (COLORS >= 256) {
vc_active_palette = xterm_colors();
}
}
log_debug("COLOR_PAIRS = %d", COLOR_PAIRS);
initialized = true;
{
auto reporter
= [](const void*, const lnav::console::user_message& um) {};
_UI_LISTENER.reload_config(reporter);
}
}
inline text_attrs
attr_for_colors(std::optional<short> fg, std::optional<short> bg)
{
if (fg && fg.value() == -1) {
fg = COLOR_WHITE;
}
if (bg && bg.value() == -1) {
bg = COLOR_BLACK;
}
if (lnav_config.lc_ui_default_colors) {
if (fg && fg.value() == COLOR_WHITE) {
fg = -1;
}
if (bg && bg.value() == COLOR_BLACK) {
bg = -1;
}
}
text_attrs retval;
if (fg && fg.value() == view_colors::MATCH_COLOR_SEMANTIC) {
retval.ta_attrs |= A_LEFT;
} else {
retval.ta_fg_color = fg;
}
if (bg && bg.value() == view_colors::MATCH_COLOR_SEMANTIC) {
retval.ta_attrs |= A_RIGHT;
} else {
retval.ta_bg_color = bg;
}
return retval;
}
view_colors::role_attrs
view_colors::to_attrs(const lnav_theme& lt,
const positioned_property<style_config>& pp_sc,
lnav_config_listener::error_reporter& reporter)
{
const auto& sc = pp_sc.pp_value;
std::string fg1, bg1, fg_color, bg_color;
intern_string_t role_class;
if (pp_sc.pp_path.empty()) {
#if 0
// too slow to do this now
reporter(&sc.sc_color, lnav::console::user_message::warning(""));
#endif
} else {
auto role_class_path = ghc::filesystem::path(pp_sc.pp_path.to_string());
auto inner = role_class_path.filename().string();
auto outer = role_class_path.parent_path().filename().string();
role_class = intern_string::lookup(
fmt::format(FMT_STRING("-lnav_{}_{}"), outer, inner));
}
fg1 = sc.sc_color;
bg1 = sc.sc_background_color;
std::map<std::string, scoped_value_t> vars;
for (const auto& vpair : lt.lt_vars) {
vars[vpair.first] = vpair.second;
}
shlex(fg1).eval(fg_color, scoped_resolver{&vars});
shlex(bg1).eval(bg_color, scoped_resolver{&vars});
auto fg = styling::color_unit::from_str(fg_color).unwrapOrElse(
[&](const auto& msg) {
reporter(
&sc.sc_color,
lnav::console::user_message::error(
attr_line_t("invalid color -- ").append_quoted(sc.sc_color))
.with_reason(msg));
return styling::color_unit::make_empty();
});
auto bg = styling::color_unit::from_str(bg_color).unwrapOrElse(
[&](const auto& msg) {
reporter(&sc.sc_background_color,
lnav::console::user_message::error(
attr_line_t("invalid background color -- ")
.append_quoted(sc.sc_background_color))
.with_reason(msg));
return styling::color_unit::make_empty();
});
text_attrs retval1
= attr_for_colors(this->match_color(fg), this->match_color(bg));
text_attrs retval2;
if (sc.sc_underline) {
retval1.ta_attrs |= A_UNDERLINE;
retval2.ta_attrs |= A_UNDERLINE;
}
if (sc.sc_bold) {
retval1.ta_attrs |= A_BOLD;
retval2.ta_attrs |= A_BOLD;
}
return {retval1, retval2, role_class};
}
void
view_colors::init_roles(const lnav_theme& lt,
lnav_config_listener::error_reporter& reporter)
{
const auto& default_theme = lnav_config.lc_ui_theme_defs["default"];
rgb_color fg, bg;
std::string err;
/* Setup the mappings from roles to actual colors. */
this->get_role_attrs(role_t::VCR_TEXT)
= this->to_attrs(lt, lt.lt_style_text, reporter);
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_iter = lt.lt_vars.find(COLOR_NAMES[ansi_fg]);
auto bg_iter = lt.lt_vars.find(COLOR_NAMES[ansi_bg]);
auto fg_str = fg_iter == lt.lt_vars.end() ? "" : fg_iter->second;
auto bg_str = bg_iter == lt.lt_vars.end() ? "" : bg_iter->second;
auto rgb_fg = from<rgb_color>(string_fragment::from_str(fg_str))
.unwrapOrElse([&](const auto& msg) {
reporter(&fg_str,
lnav::console::user_message::error(
attr_line_t("invalid color -- ")
.append_quoted(fg_str))
.with_reason(msg));
return rgb_color{};
});
auto rgb_bg
= from<rgb_color>(string_fragment::from_str(bg_str))
.unwrapOrElse([&](const auto& msg) {
reporter(
&bg_str,
lnav::console::user_message::error(
attr_line_t("invalid background color -- ")
.append_quoted(bg_str))
.with_reason(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;
}
}
}
}
if (lnav_config.lc_ui_dim_text) {
this->get_role_attrs(role_t::VCR_TEXT).ra_normal.ta_attrs |= A_DIM;
this->get_role_attrs(role_t::VCR_TEXT).ra_reverse.ta_attrs |= A_DIM;
}
this->get_role_attrs(role_t::VCR_SEARCH)
= role_attrs{text_attrs{A_REVERSE}, text_attrs{A_REVERSE}};
this->get_role_attrs(role_t::VCR_SEARCH).ra_class_name
= intern_string::lookup("-lnav_styles_search");
this->get_role_attrs(role_t::VCR_IDENTIFIER)
= this->to_attrs(lt, lt.lt_style_identifier, reporter);
this->get_role_attrs(role_t::VCR_OK)
= this->to_attrs(lt, lt.lt_style_ok, reporter);
this->get_role_attrs(role_t::VCR_INFO)
= this->to_attrs(lt, lt.lt_style_info, reporter);
this->get_role_attrs(role_t::VCR_ERROR)
= this->to_attrs(lt, lt.lt_style_error, reporter);
this->get_role_attrs(role_t::VCR_WARNING)
= this->to_attrs(lt, lt.lt_style_warning, reporter);
this->get_role_attrs(role_t::VCR_ALT_ROW)
= this->to_attrs(lt, lt.lt_style_alt_text, reporter);
this->get_role_attrs(role_t::VCR_HIDDEN)
= this->to_attrs(lt, lt.lt_style_hidden, reporter);
this->get_role_attrs(role_t::VCR_CURSOR_LINE)
= this->to_attrs(lt, lt.lt_style_cursor_line, reporter);
if (this->get_role_attrs(role_t::VCR_CURSOR_LINE).ra_normal.empty()) {
this->get_role_attrs(role_t::VCR_CURSOR_LINE) = this->to_attrs(
default_theme, default_theme.lt_style_cursor_line, reporter);
}
this->get_role_attrs(role_t::VCR_DISABLED_CURSOR_LINE)
= this->to_attrs(lt, lt.lt_style_disabled_cursor_line, reporter);
if (this->get_role_attrs(role_t::VCR_DISABLED_CURSOR_LINE)
.ra_normal.empty())
{
this->get_role_attrs(role_t::VCR_DISABLED_CURSOR_LINE)
= this->to_attrs(default_theme,
default_theme.lt_style_disabled_cursor_line,
reporter);
}
this->get_role_attrs(role_t::VCR_ADJUSTED_TIME)
= this->to_attrs(lt, lt.lt_style_adjusted_time, reporter);
this->get_role_attrs(role_t::VCR_SKEWED_TIME)
= this->to_attrs(lt, lt.lt_style_skewed_time, reporter);
this->get_role_attrs(role_t::VCR_OFFSET_TIME)
= this->to_attrs(lt, lt.lt_style_offset_time, reporter);
this->get_role_attrs(role_t::VCR_FILE_OFFSET)
= this->to_attrs(lt, lt.lt_style_file_offset, reporter);
this->get_role_attrs(role_t::VCR_INVALID_MSG)
= this->to_attrs(lt, lt.lt_style_invalid_msg, reporter);
this->get_role_attrs(role_t::VCR_STATUS)
= this->to_attrs(lt, lt.lt_style_status, reporter);
this->get_role_attrs(role_t::VCR_WARN_STATUS)
= this->to_attrs(lt, lt.lt_style_warn_status, reporter);
this->get_role_attrs(role_t::VCR_ALERT_STATUS)
= this->to_attrs(lt, lt.lt_style_alert_status, reporter);
this->get_role_attrs(role_t::VCR_ACTIVE_STATUS)
= this->to_attrs(lt, lt.lt_style_active_status, reporter);
this->get_role_attrs(role_t::VCR_ACTIVE_STATUS2) = role_attrs{
this->get_role_attrs(role_t::VCR_ACTIVE_STATUS).ra_normal,
this->get_role_attrs(role_t::VCR_ACTIVE_STATUS).ra_reverse,
};
this->get_role_attrs(role_t::VCR_ACTIVE_STATUS2).ra_normal.ta_attrs
|= A_BOLD;
this->get_role_attrs(role_t::VCR_ACTIVE_STATUS2).ra_reverse.ta_attrs
|= A_BOLD;
this->get_role_attrs(role_t::VCR_STATUS_TITLE)
= this->to_attrs(lt, lt.lt_style_status_title, reporter);
this->get_role_attrs(role_t::VCR_STATUS_SUBTITLE)
= this->to_attrs(lt, lt.lt_style_status_subtitle, reporter);
this->get_role_attrs(role_t::VCR_STATUS_INFO)
= this->to_attrs(lt, lt.lt_style_status_info, reporter);
this->get_role_attrs(role_t::VCR_STATUS_HOTKEY)
= this->to_attrs(lt, lt.lt_style_status_hotkey, reporter);
this->get_role_attrs(role_t::VCR_STATUS_TITLE_HOTKEY)
= this->to_attrs(lt, lt.lt_style_status_title_hotkey, reporter);
this->get_role_attrs(role_t::VCR_STATUS_DISABLED_TITLE)
= this->to_attrs(lt, lt.lt_style_status_disabled_title, reporter);
this->get_role_attrs(role_t::VCR_H1)
= this->to_attrs(lt, lt.lt_style_header[0], reporter);
this->get_role_attrs(role_t::VCR_H2)
= this->to_attrs(lt, lt.lt_style_header[1], reporter);
this->get_role_attrs(role_t::VCR_H3)
= this->to_attrs(lt, lt.lt_style_header[2], reporter);
this->get_role_attrs(role_t::VCR_H4)
= this->to_attrs(lt, lt.lt_style_header[3], reporter);
this->get_role_attrs(role_t::VCR_H5)
= this->to_attrs(lt, lt.lt_style_header[4], reporter);
this->get_role_attrs(role_t::VCR_H6)
= this->to_attrs(lt, lt.lt_style_header[5], reporter);
this->get_role_attrs(role_t::VCR_HR)
= this->to_attrs(lt, lt.lt_style_hr, reporter);
this->get_role_attrs(role_t::VCR_HYPERLINK)
= this->to_attrs(lt, lt.lt_style_hyperlink, reporter);
this->get_role_attrs(role_t::VCR_LIST_GLYPH)
= this->to_attrs(lt, lt.lt_style_list_glyph, reporter);
this->get_role_attrs(role_t::VCR_BREADCRUMB)
= this->to_attrs(lt, lt.lt_style_breadcrumb, reporter);
this->get_role_attrs(role_t::VCR_TABLE_BORDER)
= this->to_attrs(lt, lt.lt_style_table_border, reporter);
this->get_role_attrs(role_t::VCR_TABLE_HEADER)
= this->to_attrs(lt, lt.lt_style_table_header, reporter);
this->get_role_attrs(role_t::VCR_QUOTE_BORDER)
= this->to_attrs(lt, lt.lt_style_quote_border, reporter);
this->get_role_attrs(role_t::VCR_QUOTED_TEXT)
= this->to_attrs(lt, lt.lt_style_quoted_text, reporter);
this->get_role_attrs(role_t::VCR_FOOTNOTE_BORDER)
= this->to_attrs(lt, lt.lt_style_footnote_border, reporter);
this->get_role_attrs(role_t::VCR_FOOTNOTE_TEXT)
= this->to_attrs(lt, lt.lt_style_footnote_text, reporter);
this->get_role_attrs(role_t::VCR_SNIPPET_BORDER)
= this->to_attrs(lt, lt.lt_style_snippet_border, reporter);
this->get_role_attrs(role_t::VCR_INDENT_GUIDE)
= this->to_attrs(lt, lt.lt_style_indent_guide, reporter);
{
positioned_property<style_config> stitch_sc;
stitch_sc.pp_value.sc_color
= lt.lt_style_status_subtitle.pp_value.sc_background_color;
stitch_sc.pp_value.sc_background_color
= lt.lt_style_status_title.pp_value.sc_background_color;
this->get_role_attrs(role_t::VCR_STATUS_STITCH_TITLE_TO_SUB)
= this->to_attrs(lt, stitch_sc, reporter);
}
{
positioned_property<style_config> stitch_sc;
stitch_sc.pp_value.sc_color
= lt.lt_style_status_title.pp_value.sc_background_color;
stitch_sc.pp_value.sc_background_color
= lt.lt_style_status_subtitle.pp_value.sc_background_color;
this->get_role_attrs(role_t::VCR_STATUS_STITCH_SUB_TO_TITLE)
= this->to_attrs(lt, stitch_sc, reporter);
}
{
positioned_property<style_config> stitch_sc;
stitch_sc.pp_value.sc_color
= lt.lt_style_status.pp_value.sc_background_color;
stitch_sc.pp_value.sc_background_color
= lt.lt_style_status_subtitle.pp_value.sc_background_color;
this->get_role_attrs(role_t::VCR_STATUS_STITCH_SUB_TO_NORMAL)
= this->to_attrs(lt, stitch_sc, reporter);
}
{
positioned_property<style_config> stitch_sc;
stitch_sc.pp_value.sc_color
= lt.lt_style_status_subtitle.pp_value.sc_background_color;
stitch_sc.pp_value.sc_background_color
= lt.lt_style_status.pp_value.sc_background_color;
this->get_role_attrs(role_t::VCR_STATUS_STITCH_NORMAL_TO_SUB)
= this->to_attrs(lt, stitch_sc, reporter);
}
{
positioned_property<style_config> stitch_sc;
stitch_sc.pp_value.sc_color
= lt.lt_style_status.pp_value.sc_background_color;
stitch_sc.pp_value.sc_background_color
= lt.lt_style_status_title.pp_value.sc_background_color;
this->get_role_attrs(role_t::VCR_STATUS_STITCH_TITLE_TO_NORMAL)
= this->to_attrs(lt, stitch_sc, reporter);
}
{
positioned_property<style_config> stitch_sc;
stitch_sc.pp_value.sc_color
= lt.lt_style_status_title.pp_value.sc_background_color;
stitch_sc.pp_value.sc_background_color
= lt.lt_style_status.pp_value.sc_background_color;
this->get_role_attrs(role_t::VCR_STATUS_STITCH_NORMAL_TO_TITLE)
= this->to_attrs(lt, stitch_sc, reporter);
}
this->get_role_attrs(role_t::VCR_INACTIVE_STATUS)
= this->to_attrs(lt, lt.lt_style_inactive_status, reporter);
this->get_role_attrs(role_t::VCR_INACTIVE_ALERT_STATUS)
= this->to_attrs(lt, lt.lt_style_inactive_alert_status, reporter);
this->get_role_attrs(role_t::VCR_POPUP)
= this->to_attrs(lt, lt.lt_style_popup, reporter);
this->get_role_attrs(role_t::VCR_FOCUSED)
= this->to_attrs(lt, lt.lt_style_focused, reporter);
this->get_role_attrs(role_t::VCR_DISABLED_FOCUSED)
= this->to_attrs(lt, lt.lt_style_disabled_focused, reporter);
this->get_role_attrs(role_t::VCR_SCROLLBAR)
= this->to_attrs(lt, lt.lt_style_scrollbar, reporter);
{
positioned_property<style_config> bar_sc;
bar_sc.pp_value.sc_color = lt.lt_style_error.pp_value.sc_color;
bar_sc.pp_value.sc_background_color
= lt.lt_style_scrollbar.pp_value.sc_background_color;
this->get_role_attrs(role_t::VCR_SCROLLBAR_ERROR)
= this->to_attrs(lt, bar_sc, reporter);
}
{
positioned_property<style_config> bar_sc;
bar_sc.pp_value.sc_color = lt.lt_style_warning.pp_value.sc_color;
bar_sc.pp_value.sc_background_color
= lt.lt_style_scrollbar.pp_value.sc_background_color;
this->get_role_attrs(role_t::VCR_SCROLLBAR_WARNING)
= this->to_attrs(lt, bar_sc, reporter);
}
this->get_role_attrs(role_t::VCR_INLINE_CODE)
= this->to_attrs(lt, lt.lt_style_inline_code, reporter);
this->get_role_attrs(role_t::VCR_QUOTED_CODE)
= this->to_attrs(lt, lt.lt_style_quoted_code, reporter);
this->get_role_attrs(role_t::VCR_CODE_BORDER)
= this->to_attrs(lt, lt.lt_style_code_border, reporter);
this->get_role_attrs(role_t::VCR_KEYWORD)
= this->to_attrs(lt, lt.lt_style_keyword, reporter);
this->get_role_attrs(role_t::VCR_STRING)
= this->to_attrs(lt, lt.lt_style_string, reporter);
this->get_role_attrs(role_t::VCR_COMMENT)
= this->to_attrs(lt, lt.lt_style_comment, reporter);
this->get_role_attrs(role_t::VCR_DOC_DIRECTIVE)
= this->to_attrs(lt, lt.lt_style_doc_directive, reporter);
this->get_role_attrs(role_t::VCR_VARIABLE)
= this->to_attrs(lt, lt.lt_style_variable, reporter);
this->get_role_attrs(role_t::VCR_SYMBOL)
= this->to_attrs(lt, lt.lt_style_symbol, reporter);
this->get_role_attrs(role_t::VCR_NULL)
= this->to_attrs(lt, lt.lt_style_null, reporter);
this->get_role_attrs(role_t::VCR_ASCII_CTRL)
= this->to_attrs(lt, lt.lt_style_ascii_ctrl, reporter);
this->get_role_attrs(role_t::VCR_NON_ASCII)
= this->to_attrs(lt, lt.lt_style_non_ascii, reporter);
this->get_role_attrs(role_t::VCR_NUMBER)
= this->to_attrs(lt, lt.lt_style_number, reporter);
this->get_role_attrs(role_t::VCR_FUNCTION)
= this->to_attrs(lt, lt.lt_style_function, reporter);
this->get_role_attrs(role_t::VCR_TYPE)
= this->to_attrs(lt, lt.lt_style_type, reporter);
this->get_role_attrs(role_t::VCR_SEP_REF_ACC)
= this->to_attrs(lt, lt.lt_style_sep_ref_acc, reporter);
this->get_role_attrs(role_t::VCR_SUGGESTION)
= this->to_attrs(lt, lt.lt_style_suggestion, reporter);
this->get_role_attrs(role_t::VCR_SELECTED_TEXT)
= this->to_attrs(lt, lt.lt_style_selected_text, reporter);
if (this->get_role_attrs(role_t::VCR_SELECTED_TEXT).ra_normal.empty()) {
this->get_role_attrs(role_t::VCR_SELECTED_TEXT) = this->to_attrs(
default_theme, default_theme.lt_style_selected_text, reporter);
}
this->get_role_attrs(role_t::VCR_RE_SPECIAL)
= this->to_attrs(lt, lt.lt_style_re_special, reporter);
this->get_role_attrs(role_t::VCR_RE_REPEAT)
= this->to_attrs(lt, lt.lt_style_re_repeat, reporter);
this->get_role_attrs(role_t::VCR_FILE)
= this->to_attrs(lt, lt.lt_style_file, reporter);
this->get_role_attrs(role_t::VCR_DIFF_DELETE)
= this->to_attrs(lt, lt.lt_style_diff_delete, reporter);
this->get_role_attrs(role_t::VCR_DIFF_ADD)
= this->to_attrs(lt, lt.lt_style_diff_add, reporter);
this->get_role_attrs(role_t::VCR_DIFF_SECTION)
= this->to_attrs(lt, lt.lt_style_diff_section, reporter);
this->get_role_attrs(role_t::VCR_LOW_THRESHOLD)
= this->to_attrs(lt, lt.lt_style_low_threshold, reporter);
this->get_role_attrs(role_t::VCR_MED_THRESHOLD)
= this->to_attrs(lt, lt.lt_style_med_threshold, reporter);
this->get_role_attrs(role_t::VCR_HIGH_THRESHOLD)
= this->to_attrs(lt, lt.lt_style_high_threshold, reporter);
for (auto 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]
= role_attrs{text_attrs{}, text_attrs{}};
} else {
this->vc_level_attrs[level]
= this->to_attrs(lt, level_iter->second, reporter);
}
}
if (initialized && this->vc_color_pair_end == 0) {
this->vc_color_pair_end = 1;
}
this->vc_dyn_pairs.clear();
for (int32_t role_index = 0;
role_index < lnav::enums::to_underlying(role_t::VCR__MAX);
role_index++)
{
const auto& ra = this->vc_role_attrs[role_index];
if (ra.ra_class_name.empty()) {
continue;
}
this->vc_class_to_role[ra.ra_class_name.to_string()]
= VC_ROLE.value(role_t(role_index));
}
for (int level_index = 0; level_index < LEVEL__MAX; level_index++) {
const auto& ra = this->vc_level_attrs[level_index];
if (ra.ra_class_name.empty()) {
continue;
}
this->vc_class_to_role[ra.ra_class_name.to_string()]
= SA_LEVEL.value(level_index);
}
}
int
view_colors::ensure_color_pair(short fg, short bg)
{
require(fg >= -100);
require(bg >= -100);
if (fg >= COLOR_BLACK && fg <= COLOR_WHITE) {
fg = this->ansi_to_theme_color(fg);
}
if (bg >= COLOR_BLACK && bg <= COLOR_WHITE) {
bg = this->ansi_to_theme_color(bg);
}
auto index_pair = std::make_pair(fg, bg);
auto existing = this->vc_dyn_pairs.get(index_pair);
if (existing) {
auto retval = existing.value().dp_color_pair;
return retval;
}
auto def_attrs = this->attrs_for_role(role_t::VCR_TEXT);
int retval = this->vc_color_pair_end + this->vc_dyn_pairs.size();
auto attrs
= attr_for_colors(fg == -1 ? def_attrs.ta_fg_color.value_or(-1) : fg,
bg == -1 ? def_attrs.ta_bg_color.value_or(-1) : bg);
init_pair(retval, attrs.ta_fg_color.value(), attrs.ta_bg_color.value());
if (initialized) {
struct dyn_pair dp = {retval};
this->vc_dyn_pairs.set_max_size(256 - this->vc_color_pair_end);
this->vc_dyn_pairs.put(index_pair, dp);
}
return retval;
}
int
view_colors::ensure_color_pair(std::optional<short> fg, std::optional<short> bg)
{
return this->ensure_color_pair(fg.value_or(-1), bg.value_or(-1));
}
int
view_colors::ensure_color_pair(const styling::color_unit& rgb_fg,
const styling::color_unit& rgb_bg)
{
auto fg = this->match_color(rgb_fg);
auto bg = this->match_color(rgb_bg);
return this->ensure_color_pair(fg, bg);
}
std::optional<short>
view_colors::match_color(const styling::color_unit& color) const
{
return color.cu_value.match(
[](styling::semantic) -> std::optional<short> {
return MATCH_COLOR_SEMANTIC;
},
[](const rgb_color& color) -> std::optional<short> {
if (color.empty()) {
return std::nullopt;
}
return vc_active_palette->match_color(lab_color(color));
});
}
std::optional<short>
view_colors::color_for_ident(const char* str, size_t len) const
{
auto index = crc32(1, (const Bytef*) str, len);
int retval;
if (str[0] == '#' && (len == 4 || len == 7)) {
auto fg_res
= styling::color_unit::from_str(string_fragment(str, 0, len));
if (fg_res.isOk()) {
return this->match_color(fg_res.unwrap());
}
}
auto offset = index % HI_COLOR_COUNT;
retval = this->vc_highlight_colors[offset];
return retval;
}
text_attrs
view_colors::attrs_for_ident(const char* str, size_t len) const
{
auto retval = this->attrs_for_role(role_t::VCR_IDENTIFIER);
if (retval.ta_attrs & (A_LEFT | A_RIGHT)) {
if (retval.ta_attrs & A_LEFT) {
retval.ta_fg_color = this->color_for_ident(str, len);
}
if (retval.ta_attrs & A_RIGHT) {
retval.ta_bg_color = this->color_for_ident(str, len);
}
retval.ta_attrs &= ~(A_COLOR | A_LEFT | A_RIGHT);
}
return retval;
}
Result<screen_curses, std::string>
screen_curses::create()
{
int errret = 0;
if (setupterm(nullptr, STDIN_FILENO, &errret) == ERR) {
switch (errret) {
case 1:
return Err(std::string("the terminal is a hardcopy, da fuq?!"));
case 0:
return Err(
fmt::format(FMT_STRING("the TERM environment variable is "
"set to an unknown value: {}"),
getenv("TERM")));
case -1:
return Err(
std::string("the terminfo database could not be found"));
default:
return Err(std::string("setupterm() failed unexpectedly"));
}
}
newterm(nullptr, stdout, stdin);
auto& mouse_i = injector::get<xterm_mouse&>();
mouse_i.set_enabled(check_experimental("mouse")
|| lnav_config.lc_mouse_mode
== lnav_mouse_mode::enabled);
return Ok(screen_curses{stdscr});
}