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/*
* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <LibVT/Line.h>
namespace VT {
Line::Line(size_t length)
{
set_length(length);
}
Line::~Line()
{
}
void Line::set_length(size_t new_length)
{
size_t old_length = length();
if (old_length == new_length)
return;
m_cells.resize(new_length);
}
void Line::clear(const Attribute& attribute)
{
if (m_dirty) {
for (auto& cell : m_cells) {
cell = Cell { .code_point = ' ', .attribute = attribute };
}
return;
}
for (auto& cell : m_cells) {
if (!m_dirty)
m_dirty = cell.code_point != ' ' || cell.attribute != attribute;
cell = Cell { .code_point = ' ', .attribute = attribute };
}
}
bool Line::has_only_one_background_color() const
{
if (!length())
return true;
// FIXME: Cache this result?
auto color = attribute_at(0).effective_background_color();
for (size_t i = 1; i < length(); ++i) {
if (attribute_at(i).effective_background_color() != color)
return false;
}
return true;
}
}
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