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/**
* Copyright (c) 2022, 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.
*/
#ifndef lnav_attr_line_builder_hh
#define lnav_attr_line_builder_hh
#include <utility>
#include "attr_line.hh"
class attr_line_builder {
public:
explicit attr_line_builder(attr_line_t& al) : alb_line(al) {}
class attr_guard {
public:
attr_guard(attr_line_t& al, string_attr_pair sap)
: ag_line(al), ag_start(al.get_string().length()),
ag_attr(std::move(sap))
{
}
attr_guard(const attr_guard&) = delete;
attr_guard& operator=(const attr_guard&) = delete;
attr_guard(attr_guard&& other) noexcept
: ag_line(other.ag_line), ag_start(other.ag_start),
ag_attr(std::move(other.ag_attr))
{
other.ag_start = nonstd::nullopt;
}
~attr_guard()
{
if (this->ag_start) {
this->ag_line.al_attrs.emplace_back(
line_range{
this->ag_start.value(),
(int) this->ag_line.get_string().length(),
},
this->ag_attr);
}
}
private:
attr_line_t& ag_line;
nonstd::optional<int> ag_start;
string_attr_pair ag_attr;
};
attr_guard with_attr(string_attr_pair sap)
{
return {this->alb_line, std::move(sap)};
}
template<typename... Args>
attr_line_builder& overlay_attr(Args... args)
{
this->alb_line.al_attrs.template emplace_back(args...);
return *this;
}
template<typename... Args>
attr_line_builder& overlay_attr_for_char(int index, Args... args)
{
this->alb_line.al_attrs.template emplace_back(
line_range{index, index + 1}, args...);
return *this;
}
template<typename... Args>
attr_line_builder& append(Args... args)
{
this->alb_line.append(args...);
return *this;
}
attr_line_builder& indent(size_t amount)
{
auto pre = this->with_attr(SA_PREFORMATTED.value());
this->append(amount, ' ');
return *this;
}
private:
attr_line_t& alb_line;
};
#endif
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