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Libraries: Move to Userland/Libraries/

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This commit is contained in:
Andreas Kling 2021-01-12 12:17:30 +01:00
parent dc28c07fa5
commit 13d7c09125
1857 changed files with 266 additions and 274 deletions
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155
Libraries/LibGUI/SyntaxHighlighter.cpp
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@ -1,155 +0,0 @@
/*
* Copyright (c) 2020, the SerenityOS developers.
* 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 <LibGUI/SyntaxHighlighter.h>
#include <LibGUI/TextEditor.h>
namespace GUI {
SyntaxHighlighter::~SyntaxHighlighter()
{
}
void SyntaxHighlighter::highlight_matching_token_pair()
{
ASSERT(m_editor);
auto& document = m_editor->document();
enum class Direction {
Forward,
Backward,
};
auto find_span_of_type = [&](auto i, void* type, void* not_type, Direction direction) -> Optional<size_t> {
size_t nesting_level = 0;
bool forward = direction == Direction::Forward;
if (forward) {
++i;
if (i >= document.spans().size())
return {};
} else {
if (i == 0)
return {};
--i;
}
for (;;) {
auto& span = document.spans().at(i);
auto span_token_type = span.data;
if (token_types_equal(span_token_type, not_type)) {
++nesting_level;
} else if (token_types_equal(span_token_type, type)) {
if (nesting_level-- <= 0)
return i;
}
if (forward) {
++i;
if (i >= document.spans().size())
return {};
} else {
if (i == 0)
return {};
--i;
}
}
return {};
};
auto make_buddies = [&](int index0, int index1) {
auto& buddy0 = document.spans()[index0];
auto& buddy1 = document.spans()[index1];
m_has_brace_buddies = true;
m_brace_buddies[0].index = index0;
m_brace_buddies[1].index = index1;
m_brace_buddies[0].span_backup = buddy0;
m_brace_buddies[1].span_backup = buddy1;
buddy0.attributes.background_color = Color::DarkCyan;
buddy1.attributes.background_color = Color::DarkCyan;
buddy0.attributes.color = Color::White;
buddy1.attributes.color = Color::White;
m_editor->update();
};
auto pairs = matching_token_pairs();
for (size_t i = 0; i < document.spans().size(); ++i) {
auto& span = const_cast<GUI::TextDocumentSpan&>(document.spans().at(i));
auto token_type = span.data;
for (auto& pair : pairs) {
if (token_types_equal(token_type, pair.open) && span.range.start() == m_editor->cursor()) {
auto buddy = find_span_of_type(i, pair.close, pair.open, Direction::Forward);
if (buddy.has_value())
make_buddies(i, buddy.value());
return;
}
}
auto right_of_end = span.range.end();
right_of_end.set_column(right_of_end.column() + 1);
for (auto& pair : pairs) {
if (token_types_equal(token_type, pair.close) && right_of_end == m_editor->cursor()) {
auto buddy = find_span_of_type(i, pair.open, pair.close, Direction::Backward);
if (buddy.has_value())
make_buddies(i, buddy.value());
return;
}
}
}
}
void SyntaxHighlighter::attach(TextEditor& editor)
{
ASSERT(!m_editor);
m_editor = editor;
}
void SyntaxHighlighter::detach()
{
ASSERT(m_editor);
m_editor = nullptr;
}
void SyntaxHighlighter::cursor_did_change()
{
ASSERT(m_editor);
auto& document = m_editor->document();
if (m_has_brace_buddies) {
if (m_brace_buddies[0].index >= 0 && m_brace_buddies[0].index < static_cast<int>(document.spans().size()))
document.set_span_at_index(m_brace_buddies[0].index, m_brace_buddies[0].span_backup);
if (m_brace_buddies[1].index >= 0 && m_brace_buddies[1].index < static_cast<int>(document.spans().size()))
document.set_span_at_index(m_brace_buddies[1].index, m_brace_buddies[1].span_backup);
m_has_brace_buddies = false;
m_editor->update();
}
highlight_matching_token_pair();
}
}