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/*
Copyright (C) 2013 xyz, Ilya Zhuravlev <whatever@xyz.is>
Copyright (C) 2016 Nore, Nathanaël Courant <nore@mesecons.net>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation; either version 2.1 of the License, or
(at your option) any later version.
This program 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 Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License along
with this program; if not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include "enriched_string.h"
#include "util/string.h"
#include "debug.h"
#include "log.h"
using namespace irr::video;
EnrichedString::EnrichedString()
{
clear();
}
EnrichedString::EnrichedString(const std::wstring &string,
const std::vector<SColor> &colors)
{
clear();
m_string = string;
m_colors = colors;
}
EnrichedString::EnrichedString(const std::wstring &s, const SColor &color)
{
clear();
addAtEnd(translate_string(s), color);
}
EnrichedString::EnrichedString(const wchar_t *str, const SColor &color)
{
clear();
addAtEnd(translate_string(std::wstring(str)), color);
}
void EnrichedString::clear()
{
m_string.clear();
m_colors.clear();
m_has_background = false;
m_default_length = 0;
m_default_color = irr::video::SColor(255, 255, 255, 255);
m_background = irr::video::SColor(0, 0, 0, 0);
}
void EnrichedString::operator=(const wchar_t *str)
{
clear();
addAtEnd(translate_string(std::wstring(str)), m_default_color);
}
void EnrichedString::addAtEnd(const std::wstring &s, const SColor &initial_color)
{
SColor color(initial_color);
bool use_default = (m_default_length == m_string.size() &&
color == m_default_color);
size_t i = 0;
while (i < s.length()) {
if (s[i] != L'\x1b') {
m_string += s[i];
m_colors.push_back(color);
++i;
continue;
}
++i;
size_t start_index = i;
size_t length;
if (i == s.length()) {
break;
}
if (s[i] == L'(') {
++i;
++start_index;
while (i < s.length() && s[i] != L')') {
if (s[i] == L'\\') {
++i;
}
++i;
}
length = i - start_index;
++i;
} else {
++i;
length = 1;
}
std::wstring escape_sequence(s, start_index, length);
std::vector<std::wstring> parts = split(escape_sequence, L'@');
if (parts[0] == L"c") {
if (parts.size() < 2) {
continue;
}
parseColorString(wide_to_utf8(parts[1]), color, true);
// No longer use default color after first escape
if (use_default) {
m_default_length = m_string.size();
use_default = false;
}
} else if (parts[0] == L"b") {
if (parts.size() < 2) {
continue;
}
parseColorString(wide_to_utf8(parts[1]), m_background, true);
m_has_background = true;
}
}
// Update if no escape character was found
if (use_default)
m_default_length = m_string.size();
}
void EnrichedString::addChar(const EnrichedString &source, size_t i)
{
m_string += source.m_string[i];
m_colors.push_back(source.m_colors[i]);
}
void EnrichedString::addCharNoColor(wchar_t c)
{
m_string += c;
if (m_colors.empty()) {
m_colors.emplace_back(m_default_color);
} else {
m_colors.push_back(m_colors[m_colors.size() - 1]);
}
}
EnrichedString EnrichedString::operator+(const EnrichedString &other) const
{
EnrichedString result = *this;
result += other;
return result;
}
void EnrichedString::operator+=(const EnrichedString &other)
{
bool update_default_color = m_default_length == m_string.size();
m_string += other.m_string;
m_colors.insert(m_colors.end(), other.m_colors.begin(), other.m_colors.end());
if (update_default_color) {
m_default_length += other.m_default_length;
updateDefaultColor();
}
}
EnrichedString EnrichedString::substr(size_t pos, size_t len) const
{
if (pos >= m_string.length())
return EnrichedString();
if (len == std::string::npos || pos + len > m_string.length())
len = m_string.length() - pos;
EnrichedString str(
m_string.substr(pos, len),
std::vector<SColor>(m_colors.begin() + pos, m_colors.begin() + pos + len)
);
str.m_has_background = m_has_background;
str.m_background = m_background;
if (pos < m_default_length)
str.m_default_length = std::min(m_default_length - pos, str.size());
str.setDefaultColor(m_default_color);
return str;
}
const wchar_t *EnrichedString::c_str() const
{
return m_string.c_str();
}
const std::vector<SColor> &EnrichedString::getColors() const
{
return m_colors;
}
const std::wstring &EnrichedString::getString() const
{
return m_string;
}
void EnrichedString::setDefaultColor(const irr::video::SColor &color)
{
m_default_color = color;
updateDefaultColor();
}
void EnrichedString::updateDefaultColor()
{
sanity_check(m_default_length <= m_colors.size());
for (size_t i = 0; i < m_default_length; ++i)
m_colors[i] = m_default_color;
}
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