b1a087485c
Code is now greatly simplified using this architecture, and DisplayAtoms no longer know their DisplayCoords and can be in any order.
114 lines
3.3 KiB
C++
114 lines
3.3 KiB
C++
#include "window.hh"
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#include "assert.hh"
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#include "highlighter_registry.hh"
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#include "hook_manager.hh"
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#include "context.hh"
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#include <algorithm>
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#include <sstream>
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namespace Kakoune
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{
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Window::Window(Buffer& buffer)
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: Editor(buffer),
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m_position(0, 0),
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m_dimensions(0, 0),
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m_hook_manager(buffer.hook_manager()),
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m_option_manager(buffer.option_manager())
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{
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HighlighterRegistry& registry = HighlighterRegistry::instance();
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m_hook_manager.run_hook("WinCreate", buffer.name(), Context(*this));
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m_option_manager.register_watcher(*this);
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registry.add_highlighter_to_group(*this, m_highlighters, "expand_tabs", HighlighterParameters());
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registry.add_highlighter_to_group(*this, m_highlighters, "highlight_selections", HighlighterParameters());
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for (auto& option : m_option_manager.flatten_options())
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on_option_changed(option.first, option.second);
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}
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Window::~Window()
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{
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m_option_manager.unregister_watcher(*this);
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}
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void Window::update_display_buffer()
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{
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scroll_to_keep_cursor_visible_ifn();
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DisplayBuffer::LineList& lines = m_display_buffer.lines();
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lines.clear();
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for (auto line = 0; line < m_dimensions.line; ++line)
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{
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auto buffer_line = m_position.line + line;
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if (buffer_line >= buffer().line_count())
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break;
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BufferIterator pos = buffer().iterator_at({ buffer_line, m_position.column });
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BufferIterator line_begin = buffer().iterator_at_line_begin(pos);
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BufferIterator line_end = buffer().iterator_at_line_end(pos);
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BufferIterator end;
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if (line_end - pos > m_dimensions.column)
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end = pos + m_dimensions.column;
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else
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end = line_end;
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lines.push_back(DisplayLine(buffer_line));
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lines.back().push_back(DisplayAtom(AtomContent(pos,end)));
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}
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m_highlighters(m_display_buffer);
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}
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void Window::set_dimensions(const DisplayCoord& dimensions)
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{
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m_dimensions = dimensions;
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}
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void Window::scroll_to_keep_cursor_visible_ifn()
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{
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BufferCoord cursor = buffer().line_and_column_at(selections().back().last());
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if (cursor.line < m_position.line)
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m_position.line = cursor.line;
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else if (cursor.line >= m_position.line + m_dimensions.line)
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m_position.line = cursor.line - (m_dimensions.line - 1);
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if (cursor.column < m_position.column)
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m_position.column = cursor.column;
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else if (cursor.column >= m_position.column + m_dimensions.column)
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m_position.column = cursor.column - (m_dimensions.column - 1);
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}
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String Window::status_line() const
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{
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BufferCoord cursor = buffer().line_and_column_at(selections().back().last());
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std::ostringstream oss;
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oss << buffer().name();
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if (buffer().is_modified())
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oss << " [+]";
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oss << " -- " << cursor.line+1 << "," << cursor.column+1
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<< " -- " << selections().size() << " sel -- ";
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if (is_editing())
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oss << "[Insert]";
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return oss.str();
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}
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void Window::on_incremental_insertion_end()
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{
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push_selections();
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hook_manager().run_hook("InsertEnd", "", Context(*this));
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pop_selections();
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}
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void Window::on_option_changed(const String& name, const Option& option)
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{
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String desc = name + "=" + option.as_string();
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m_hook_manager.run_hook("WinSetOption", desc, Context(*this));
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}
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}
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