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79 lines
1.9 KiB
79 lines
1.9 KiB
4 years ago
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/* Distributed under the OSI-approved BSD 3-Clause License. See accompanying
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file Copyright.txt or https://cmake.org/licensing for details. */
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#include "cmCursesColor.h"
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#include <cctype>
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#include <cstdlib>
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#include <cstring>
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#include <unordered_map>
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#include <utility>
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#include "cmCursesStandardIncludes.h"
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bool cmCursesColor::HasColors()
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{
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#ifdef HAVE_CURSES_USE_DEFAULT_COLORS
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return has_colors();
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#else
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return false;
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#endif
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}
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void cmCursesColor::InitColors()
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{
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#ifdef HAVE_CURSES_USE_DEFAULT_COLORS
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if (HasColors()) {
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start_color();
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use_default_colors();
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init_pair(BoolOff, GetColor('N', COLOR_RED), -1);
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init_pair(BoolOn, GetColor('Y', COLOR_GREEN), -1);
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init_pair(String, GetColor('S', COLOR_CYAN), -1);
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init_pair(Path, GetColor('P', COLOR_YELLOW), -1);
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init_pair(Choice, GetColor('C', COLOR_MAGENTA), -1);
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}
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#endif
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}
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short cmCursesColor::GetColor(char id, short fallback)
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{
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static bool initialized = false;
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static std::unordered_map<char, short> env;
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if (!initialized) {
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if (auto* v = getenv("CCMAKE_COLORS")) {
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while (v[0] && v[1] && v[1] == '=') {
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auto const n = std::toupper(*v);
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char buffer[12];
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memset(buffer, 0, sizeof(buffer));
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if (auto* const e = strchr(v, ':')) {
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if (static_cast<size_t>(e - v) > sizeof(buffer)) {
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break;
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}
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strncpy(buffer, v + 2, static_cast<size_t>(e - v - 2));
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v = e + 1;
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} else {
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auto const l = strlen(v);
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if (l > sizeof(buffer)) {
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break;
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}
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strncpy(buffer, v + 2, l - 2);
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v += l;
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}
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auto const c = atoi(buffer);
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if (c && c < COLORS) {
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env.emplace(n, static_cast<short>(c));
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}
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}
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}
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initialized = true;
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}
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auto const iter = env.find(id);
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return (iter == env.end() ? fallback : iter->second);
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}
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