bb8e65be41
This patch introduces the GUI::SyntaxHighlighter class, which can be attached to a GUI::TextEditor to provide syntax highlighting. The C++ syntax highlighting from HackStudio becomes a new class called GUI::CppSyntaxHighlighter. This will make it possible to get C++ syntax highlighting in any app that uses a GUI::TextEditor. :^) Sidenote: It does feel a bit weird having a C++ lexer in a GUI toolkit library, and we'll probably end up moving this out to a separate place as this functionality grows larger.
37 lines
979 B
C++
37 lines
979 B
C++
#include <LibGUI/SyntaxHighlighter.h>
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#include <LibGUI/TextEditor.h>
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namespace GUI {
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SyntaxHighlighter::~SyntaxHighlighter()
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{
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}
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void SyntaxHighlighter::attach(TextEditor& editor)
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{
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ASSERT(!m_editor);
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m_editor = editor.make_weak_ptr();
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}
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void SyntaxHighlighter::detach()
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{
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ASSERT(m_editor);
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m_editor = nullptr;
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}
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void SyntaxHighlighter::cursor_did_change()
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{
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ASSERT(m_editor);
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auto& document = m_editor->document();
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if (m_has_brace_buddies) {
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if (m_brace_buddies[0].index >= 0 && m_brace_buddies[0].index < document.spans().size())
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document.set_span_at_index(m_brace_buddies[0].index, m_brace_buddies[0].span_backup);
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if (m_brace_buddies[1].index >= 0 && m_brace_buddies[1].index < document.spans().size())
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document.set_span_at_index(m_brace_buddies[1].index, m_brace_buddies[1].span_backup);
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m_has_brace_buddies = false;
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m_editor->update();
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}
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highlight_matching_token_pair();
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}
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}
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