mirror of
https://github.com/RGBCube/serenity
synced 2025-10-31 13:32:45 +00:00
ce95628b7f
This time, without trailing 's'. Ran:
git grep -l 'codepoint' | xargs sed -ie 's/codepoint/code_point/g
127 lines
3.9 KiB
C++
127 lines
3.9 KiB
C++
/*
|
|
* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions are met:
|
|
*
|
|
* 1. Redistributions of source code must retain the above copyright notice, this
|
|
* list of conditions and the following disclaimer.
|
|
*
|
|
* 2. 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.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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 COPYRIGHT HOLDER 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.
|
|
*/
|
|
|
|
#include <LibVT/Line.h>
|
|
#include <string.h>
|
|
|
|
namespace VT {
|
|
|
|
Line::Line(u16 length)
|
|
{
|
|
set_length(length);
|
|
}
|
|
|
|
Line::~Line()
|
|
{
|
|
if (m_utf32)
|
|
delete[] m_code_points.as_u32;
|
|
else
|
|
delete[] m_code_points.as_u8;
|
|
delete[] m_attributes;
|
|
}
|
|
|
|
template<typename CodepointType>
|
|
static CodepointType* create_new_code_point_array(size_t new_length, const CodepointType* old_code_points, size_t old_length)
|
|
{
|
|
auto* new_code_points = new CodepointType[new_length];
|
|
for (size_t i = 0; i < new_length; ++i)
|
|
new_code_points[i] = ' ';
|
|
if (old_code_points) {
|
|
for (size_t i = 0; i < min(old_length, new_length); ++i) {
|
|
new_code_points[i] = old_code_points[i];
|
|
}
|
|
}
|
|
delete[] old_code_points;
|
|
return new_code_points;
|
|
}
|
|
|
|
void Line::set_length(u16 new_length)
|
|
{
|
|
if (m_length == new_length)
|
|
return;
|
|
|
|
if (m_utf32)
|
|
m_code_points.as_u32 = create_new_code_point_array<u32>(new_length, m_code_points.as_u32, m_length);
|
|
else
|
|
m_code_points.as_u8 = create_new_code_point_array<u8>(new_length, m_code_points.as_u8, m_length);
|
|
|
|
auto* new_attributes = new Attribute[new_length];
|
|
if (m_attributes) {
|
|
for (size_t i = 0; i < min(m_length, new_length); ++i)
|
|
new_attributes[i] = m_attributes[i];
|
|
}
|
|
delete[] m_attributes;
|
|
m_attributes = new_attributes;
|
|
m_length = new_length;
|
|
}
|
|
|
|
void Line::clear(Attribute attribute)
|
|
{
|
|
if (m_dirty) {
|
|
for (u16 i = 0; i < m_length; ++i) {
|
|
set_code_point(i, ' ');
|
|
m_attributes[i] = attribute;
|
|
}
|
|
return;
|
|
}
|
|
for (unsigned i = 0; i < m_length; ++i) {
|
|
if (code_point(i) != ' ')
|
|
m_dirty = true;
|
|
set_code_point(i, ' ');
|
|
}
|
|
for (unsigned i = 0; i < m_length; ++i) {
|
|
if (m_attributes[i] != attribute)
|
|
m_dirty = true;
|
|
m_attributes[i] = attribute;
|
|
}
|
|
}
|
|
|
|
bool Line::has_only_one_background_color() const
|
|
{
|
|
if (!m_length)
|
|
return true;
|
|
// FIXME: Cache this result?
|
|
auto color = m_attributes[0].background_color;
|
|
for (size_t i = 1; i < m_length; ++i) {
|
|
if (m_attributes[i].background_color != color)
|
|
return false;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
void Line::convert_to_utf32()
|
|
{
|
|
ASSERT(!m_utf32);
|
|
auto* new_code_points = new u32[m_length];
|
|
for (size_t i = 0; i < m_length; ++i) {
|
|
new_code_points[i] = m_code_points.as_u8[i];
|
|
}
|
|
delete m_code_points.as_u8;
|
|
m_code_points.as_u32 = new_code_points;
|
|
m_utf32 = true;
|
|
}
|
|
|
|
}
|