mirror of
https://github.com/LadybirdBrowser/ladybird.git
synced 2024-11-22 15:40:19 +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++
/*
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* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <LibVT/Line.h>
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#include <string.h>
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namespace VT {
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Line::Line(u16 length)
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{
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set_length(length);
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}
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Line::~Line()
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{
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if (m_utf32)
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delete[] m_code_points.as_u32;
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else
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delete[] m_code_points.as_u8;
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delete[] m_attributes;
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}
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template<typename CodepointType>
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static CodepointType* create_new_code_point_array(size_t new_length, const CodepointType* old_code_points, size_t old_length)
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{
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auto* new_code_points = new CodepointType[new_length];
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for (size_t i = 0; i < new_length; ++i)
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new_code_points[i] = ' ';
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if (old_code_points) {
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for (size_t i = 0; i < min(old_length, new_length); ++i) {
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new_code_points[i] = old_code_points[i];
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}
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}
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delete[] old_code_points;
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return new_code_points;
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}
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void Line::set_length(u16 new_length)
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{
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if (m_length == new_length)
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return;
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if (m_utf32)
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m_code_points.as_u32 = create_new_code_point_array<u32>(new_length, m_code_points.as_u32, m_length);
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else
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m_code_points.as_u8 = create_new_code_point_array<u8>(new_length, m_code_points.as_u8, m_length);
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auto* new_attributes = new Attribute[new_length];
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if (m_attributes) {
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for (size_t i = 0; i < min(m_length, new_length); ++i)
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new_attributes[i] = m_attributes[i];
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}
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delete[] m_attributes;
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m_attributes = new_attributes;
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m_length = new_length;
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}
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void Line::clear(Attribute attribute)
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{
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if (m_dirty) {
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for (u16 i = 0; i < m_length; ++i) {
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set_code_point(i, ' ');
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m_attributes[i] = attribute;
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}
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return;
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}
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for (unsigned i = 0; i < m_length; ++i) {
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if (code_point(i) != ' ')
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m_dirty = true;
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set_code_point(i, ' ');
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}
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for (unsigned i = 0; i < m_length; ++i) {
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if (m_attributes[i] != attribute)
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m_dirty = true;
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m_attributes[i] = attribute;
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}
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}
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bool Line::has_only_one_background_color() const
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{
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if (!m_length)
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return true;
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// FIXME: Cache this result?
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auto color = m_attributes[0].background_color;
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for (size_t i = 1; i < m_length; ++i) {
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if (m_attributes[i].background_color != color)
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return false;
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}
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return true;
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}
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void Line::convert_to_utf32()
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{
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ASSERT(!m_utf32);
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auto* new_code_points = new u32[m_length];
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for (size_t i = 0; i < m_length; ++i) {
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new_code_points[i] = m_code_points.as_u8[i];
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}
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delete m_code_points.as_u8;
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m_code_points.as_u32 = new_code_points;
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m_utf32 = true;
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}
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}
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