begin using BufferView class to control the BufferPane layout
This commit is contained in:
parent
382552d25c
commit
22171cacf9
@ -1,11 +1,30 @@
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#include "BufferPane.h"
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int BufferPane::Cwd::operator()(uint32_t character)
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{
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if (character < 0x20u)
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{
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return 2;
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}
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else if (character < 0x80u)
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{
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return 1;
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}
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else
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{
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return std::max(1, m_window->font()->get_glyph(character)->get_advance() / m_window->font()->get_advance());
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}
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}
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BufferPane::BufferPane(Window * window, std::shared_ptr<Buffer> buffer)
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: m_window(window), m_buffer(buffer)
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: m_window(window), m_buffer(buffer), m_cwd(window)
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{
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m_cursor_screen_row = 0;
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m_scroll_offset = 5;
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m_iterator = buffer->add_cursor();
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m_buffer_view = std::make_shared<BufferView>(buffer, m_iterator, m_cwd);
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m_buffer_view->set_scroll_offset(5);
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m_buffer_view->update();
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m_target_column = 0;
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m_cursor_virtual_column = 0;
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m_show_status_bar = true;
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@ -23,275 +42,19 @@ void BufferPane::resize(int width, int height)
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height_subtract = m_window->font()->get_line_height() + 1;
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}
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m_rows = std::max(1, (m_height - height_subtract) / m_window->font()->get_line_height());
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}
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void BufferPane::walk_line(const Buffer::Iterator & start_of_line, std::function<void(int, int, int, int, const Buffer::Iterator &)> callback)
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{
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int row_offset = 0;
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int screen_column = 0;
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int virtual_column = 0;
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Buffer::Iterator i = start_of_line;
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for (;;)
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{
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uint32_t code_point = *i;
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if ((code_point == '\n') || (!i.valid()))
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{
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callback(row_offset, screen_column, virtual_column, 0, i);
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break;
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}
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int c_width;
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if (code_point == '\t')
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{
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uint8_t tabstop = m_buffer->tabstop();
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c_width = tabstop - virtual_column % tabstop;
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}
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else
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{
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c_width = character_width(code_point);
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if (((screen_column + c_width) > m_columns) &&
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(screen_column > 0))
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{
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row_offset++;
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screen_column = 0;
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}
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}
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callback(row_offset, screen_column, virtual_column, c_width, i);
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virtual_column += c_width;
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if (code_point == '\t')
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{
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screen_column += c_width;
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while (screen_column >= m_columns)
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{
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screen_column -= m_columns;
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row_offset++;
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}
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}
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else
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{
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if ((screen_column + c_width) >= m_columns)
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{
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row_offset++;
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screen_column = 0;
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}
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else
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{
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screen_column += c_width;
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}
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}
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i.go_forward();
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}
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}
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int BufferPane::calculate_rows_in_line(const Buffer::Iterator & start_of_line)
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{
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int saved_row_offset = 0;
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walk_line(start_of_line, [this, &saved_row_offset](int row_offset, int screen_column, int virtual_column, int character_width, const Buffer::Iterator & i) {
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uint32_t code_point = *i;
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if (m_command_mode ||
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((code_point != '\n') &&
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(code_point != Buffer::Iterator::INVALID_CODE_POINT)))
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{
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saved_row_offset = row_offset;
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}
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});
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return saved_row_offset + 1;
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}
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int BufferPane::calculate_rows_in_cursor_line(const Buffer::Iterator & start_of_line)
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{
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int saved_row_offset = 0;
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walk_line(start_of_line, [this, &saved_row_offset](int row_offset, int screen_column, int virtual_column, int character_width, const Buffer::Iterator & i) {
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uint32_t code_point = *i;
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if (i == *m_iterator)
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{
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m_cursor_virtual_column = virtual_column;
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m_cursor_screen_column = screen_column;
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m_cursor_row_offset = row_offset;
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}
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if ((code_point != '\n') && (code_point != Buffer::Iterator::INVALID_CODE_POINT))
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{
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saved_row_offset = row_offset;
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}
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});
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return saved_row_offset + 1;
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}
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int BufferPane::calculate_rows_in_line_with_iterator_offset(const Buffer::Iterator & start_of_line, const Buffer::Iterator & reference, int * iterator_row_offset)
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{
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int saved_row_offset = 0;
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walk_line(start_of_line, [this, &saved_row_offset, &reference, &iterator_row_offset](int row_offset, int screen_column, int virtual_column, int character_width, const Buffer::Iterator & i) {
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uint32_t code_point = *i;
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if (i == reference)
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{
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*iterator_row_offset = row_offset;
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}
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if ((code_point != '\n') && (code_point != Buffer::Iterator::INVALID_CODE_POINT))
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{
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saved_row_offset = row_offset;
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}
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});
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return saved_row_offset + 1;
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}
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int BufferPane::screen_rows_below_line(const Buffer::Iterator & line)
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{
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Buffer::Iterator i = line;
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int rows = 0;
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while ((rows < m_rows) && i.go_next_line())
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{
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rows += calculate_rows_in_line(i);
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}
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return rows;
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}
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int BufferPane::screen_rows_above_line(const Buffer::Iterator & line, std::list<std::pair<int, Buffer::Iterator>> & backward_lines)
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{
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Buffer::Iterator i = line;
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int rows = 0;
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while ((rows < m_rows) && i.go_previous_line())
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{
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int rows_in_this_line = calculate_rows_in_line(i);
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rows += rows_in_this_line;
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backward_lines.push_back(std::pair<int, Buffer::Iterator>(rows_in_this_line, i));
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}
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return rows;
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}
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void BufferPane::update_cursor_row(std::list<std::pair<int, Buffer::Iterator>> & backward_lines)
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{
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Buffer::Iterator start_of_line = *m_iterator;
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start_of_line.go_start_of_line();
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int rows_in_cursor_line = calculate_rows_in_cursor_line(start_of_line);
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int so = effective_scroll_offset();
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int rows_above = screen_rows_above_line(*m_iterator, backward_lines) + m_cursor_row_offset;
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int rows_below = screen_rows_below_line(*m_iterator) + std::max(0, rows_in_cursor_line - m_cursor_row_offset - 1);
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int min_rows_to_leave_above = std::min(rows_above, so);
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int min_rows_to_leave_below = std::min(rows_below, so);
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m_cursor_screen_row = std::min(m_rows - min_rows_to_leave_below - 1, m_cursor_screen_row);
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m_cursor_screen_row = std::max(min_rows_to_leave_above, m_cursor_screen_row);
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m_cursor_screen_row = std::max(m_rows - rows_below - 1, m_cursor_screen_row);
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m_cursor_screen_row = std::min(rows_above, m_cursor_screen_row);
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}
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bool BufferPane::move_cursor_screen_row_up()
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{
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size_t previous_iterator_offset = m_iterator->offset();
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if (m_cursor_row_offset > 0)
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{
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Buffer::Iterator start_of_line = *m_iterator;
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start_of_line.go_start_of_line();
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walk_line(start_of_line, [this](int row_offset, int screen_column, int virtual_column, int character_width, const Buffer::Iterator & i) {
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if (((*i != '\n') || insert_mode()) &&
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(screen_column <= m_cursor_screen_column) &&
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(row_offset < m_cursor_row_offset))
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{
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*m_iterator = i;
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}
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});
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}
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else
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{
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if (!m_iterator->go_previous_line())
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{
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return false;
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}
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walk_line(*m_iterator, [this](int row_offset, int screen_column, int virtual_column, int character_width, const Buffer::Iterator & i) {
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if (((*i != '\n') || insert_mode()) &&
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(screen_column <= m_cursor_screen_column))
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{
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*m_iterator = i;
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}
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});
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}
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return m_iterator->offset() != previous_iterator_offset;
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}
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bool BufferPane::move_cursor_screen_row_down()
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{
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size_t previous_iterator_offset = m_iterator->offset();
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Buffer::Iterator start_of_line = *m_iterator;
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start_of_line.go_start_of_line();
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walk_line(start_of_line, [this](int row_offset, int screen_column, int virtual_column, int character_width, const Buffer::Iterator & i) {
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if (((*i != '\n') || insert_mode()) &&
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(screen_column <= m_cursor_screen_column) &&
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(row_offset > m_cursor_row_offset))
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{
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*m_iterator = i;
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}
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});
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if (m_iterator->offset() != previous_iterator_offset)
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{
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return true;
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}
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if (!m_iterator->go_next_line())
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{
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return false;
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}
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walk_line(*m_iterator, [this](int row_offset, int screen_column, int virtual_column, int character_width, const Buffer::Iterator & i) {
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if (((*i != '\n') || insert_mode()) &&
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(screen_column <= m_cursor_screen_column) &&
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(row_offset == 0))
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{
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*m_iterator = i;
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}
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});
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return m_iterator->offset() != previous_iterator_offset;
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}
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int BufferPane::determine_new_cursor_screen_row()
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{
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if (m_screen_lines.size() > 0)
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{
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if (m_iterator->line() < m_screen_lines.begin()->second.line())
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{
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return 0;
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}
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if (m_iterator->line() > m_screen_lines.rbegin()->second.line())
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{
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return m_rows;
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}
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for (auto screen_line : m_screen_lines)
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{
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if (screen_line.second.line() == m_iterator->line())
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{
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calculate_rows_in_cursor_line(screen_line.second);
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return screen_line.first + m_cursor_row_offset;
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}
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}
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}
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return 0;
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m_buffer_view->resize(m_columns, m_rows);
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m_buffer_view->update();
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}
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void BufferPane::draw()
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{
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m_screen_lines.clear();
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if (m_iterator->valid())
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{
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std::list<std::pair<int, Buffer::Iterator>> backward_lines;
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update_cursor_row(backward_lines);
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int screen_row = m_cursor_screen_row - m_cursor_row_offset;
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Buffer::Iterator i = *m_iterator;
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if (screen_row <= 0)
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for (auto line_iterator = m_buffer_view->vert_iter();
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line_iterator.is_valid();
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line_iterator++)
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{
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i.go_start_of_line();
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}
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else for (auto rows_iterator_pair : backward_lines)
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{
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screen_row -= rows_iterator_pair.first;
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i = rows_iterator_pair.second;
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if (screen_row <= 0)
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{
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break;
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}
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}
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while (screen_row <= m_rows)
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{
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m_screen_lines.push_back(std::pair<int, Buffer::Iterator>(screen_row, i));
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screen_row += draw_buffer_line(screen_row, i);
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if (!i.go_next_line())
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{
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break;
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}
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draw_buffer_line(line_iterator.row_offset(), line_iterator.iterator());
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}
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}
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else
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@ -304,78 +67,85 @@ void BufferPane::draw()
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}
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}
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int BufferPane::draw_buffer_line(int screen_row, const Buffer::Iterator & start_of_line)
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void BufferPane::scroll_window_up(Window::ScrollMode scroll_mode)
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{
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int lines_to_scroll = calculate_lines_to_scroll(scroll_mode);
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m_buffer_view->scroll_view_up(lines_to_scroll, insert_mode());
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m_buffer_view->update();
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m_window->request_redraw();
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}
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void BufferPane::scroll_window_down(Window::ScrollMode scroll_mode)
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{
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int lines_to_scroll = calculate_lines_to_scroll(scroll_mode);
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m_buffer_view->scroll_view_down(lines_to_scroll, insert_mode());
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m_buffer_view->update();
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m_window->request_redraw();
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}
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void BufferPane::draw_buffer_line(int screen_row, std::shared_ptr<Buffer::Iterator> start_of_line)
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{
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int saved_row_offset = 0;
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int last_drawn_crosshair_row = -1;
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walk_line(start_of_line, [this, &saved_row_offset, &screen_row, &last_drawn_crosshair_row](int row_offset, int screen_column, int virtual_column, int character_width, const Buffer::Iterator & i) {
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uint32_t code_point = *i;
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int draw_row = screen_row + row_offset;
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if ((draw_row >= 0) && (draw_row <= m_rows))
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for (auto it = m_buffer_view->horiz_iter(start_of_line);
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it.is_valid();
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it++)
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{
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int draw_row = screen_row + it.row_offset();
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int cwidth = std::max(it.character_width(), 1);
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if ((draw_row < 0) || (draw_row > m_rows))
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continue;
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if (it.iterator()->line() == m_iterator->line())
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{
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if (i.line() == m_iterator->line())
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if ((draw_row > last_drawn_crosshair_row) &&
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((!it.is_eol()) || (it.row_offset() == 0)))
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{
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if ((code_point != '\n') && (code_point != Buffer::Iterator::INVALID_CODE_POINT))
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{
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if (draw_row > last_drawn_crosshair_row)
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{
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for (int col = screen_column; col < m_columns; col++)
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{
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draw_crosshair(col_x(col), row_y(draw_row));
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}
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last_drawn_crosshair_row = draw_row;
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}
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}
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}
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else if ((m_cursor_virtual_column >= virtual_column) &&
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(m_cursor_virtual_column < (virtual_column + std::max(character_width, 1))))
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{
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int col = screen_column + (m_cursor_virtual_column - virtual_column);
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int row = draw_row;
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while (screen_column >= m_columns)
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{
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screen_column -= m_columns;
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row++;
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}
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draw_crosshair(col_x(col), row_y(row));
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}
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if (i == *m_iterator)
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{
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bool wrap = (code_point == '\t');
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int row = draw_row;
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int col = screen_column;
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int w = std::max(1, character_width);
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for (int i = 0; i < w; i++)
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{
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draw_cursor(col_x(col), row_y(row), i, w);
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col++;
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if (wrap && (col >= m_columns))
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{
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row++;
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col = 0;
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}
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}
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}
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if ((code_point == '\n') || (code_point == Buffer::Iterator::INVALID_CODE_POINT))
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{
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if ((m_cursor_virtual_column > virtual_column) &&
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(m_cursor_virtual_column < (virtual_column + (m_columns - screen_column))))
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{
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draw_crosshair(col_x(screen_column + (m_cursor_virtual_column - virtual_column)),
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row_y(draw_row));
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}
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}
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else
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{
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draw_character(code_point, draw_row, screen_column);
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}
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if ((code_point != '\n') && (code_point != Buffer::Iterator::INVALID_CODE_POINT))
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{
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saved_row_offset = row_offset;
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draw_crosshair(0, row_y(draw_row), col_x(m_columns));
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last_drawn_crosshair_row = draw_row;
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}
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}
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});
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return saved_row_offset + 1;
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else if ((m_cursor_virtual_column >= it.virtual_column()) &&
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(m_cursor_virtual_column < (it.virtual_column() + cwidth)))
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{
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int col = it.screen_column() + (m_cursor_virtual_column - it.virtual_column());
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int row = draw_row;
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while (col >= m_columns)
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{
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col -= m_columns;
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row++;
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}
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draw_crosshair(col_x(col), row_y(row));
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}
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if (*it.iterator() == *m_iterator)
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{
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bool wrap = (it.code_point() == '\t');
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int row = draw_row;
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int col = it.screen_column();
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for (int i = 0; i < cwidth; i++)
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{
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draw_cursor(col_x(col), row_y(row), i, cwidth);
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col++;
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if (wrap && (col >= m_columns))
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{
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row++;
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col = 0;
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}
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}
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}
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if (it.is_eol())
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{
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if ((m_cursor_virtual_column > it.virtual_column()) &&
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(m_cursor_virtual_column < (it.virtual_column() + (m_columns - it.screen_column()))))
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{
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draw_crosshair(col_x(it.screen_column() + (m_cursor_virtual_column - it.virtual_column())),
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row_y(draw_row));
|
||||
}
|
||||
}
|
||||
else
|
||||
{
|
||||
draw_character(it.code_point(), draw_row, it.screen_column());
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
void BufferPane::draw_character(uint32_t character, int screen_row, int screen_column)
|
||||
@ -402,22 +172,6 @@ void BufferPane::draw_character(uint32_t character, int screen_row, int screen_c
|
||||
}
|
||||
}
|
||||
|
||||
int BufferPane::character_width(uint32_t character)
|
||||
{
|
||||
if (character < 0x20u)
|
||||
{
|
||||
return 2;
|
||||
}
|
||||
else if (character < 0x80u)
|
||||
{
|
||||
return 1u;
|
||||
}
|
||||
else
|
||||
{
|
||||
return std::max(1, m_window->font()->get_glyph(character)->get_advance() / m_window->font()->get_advance());
|
||||
}
|
||||
}
|
||||
|
||||
void BufferPane::draw_cursor(int x, int y, int i, int columns)
|
||||
{
|
||||
if (m_command_mode && (!m_focused))
|
||||
@ -452,12 +206,14 @@ void BufferPane::draw_cursor(int x, int y, int i, int columns)
|
||||
}
|
||||
}
|
||||
|
||||
void BufferPane::draw_crosshair(int x, int y)
|
||||
void BufferPane::draw_crosshair(int x, int y, int width, int height)
|
||||
{
|
||||
if (!m_command_mode)
|
||||
{
|
||||
int width = m_window->font()->get_advance();
|
||||
int height = m_window->font()->get_line_height();
|
||||
if (width < 0)
|
||||
width = m_window->font()->get_advance();
|
||||
if (height < 0)
|
||||
height = m_window->font()->get_line_height();
|
||||
m_window->gl()->draw_rect(win_x(x), win_y(y), width, height, 0.1, 0.1, 0.1, 1.0);
|
||||
}
|
||||
}
|
||||
@ -471,6 +227,7 @@ void BufferPane::exit_insert_mode()
|
||||
{
|
||||
m_iterator->go_back();
|
||||
}
|
||||
m_buffer_view->update();
|
||||
m_window->request_redraw();
|
||||
}
|
||||
}
|
||||
@ -500,6 +257,7 @@ void BufferPane::insert_code_point(uint32_t code_point)
|
||||
}
|
||||
m_buffer->insert_code_point(*m_iterator, code_point);
|
||||
}
|
||||
m_buffer_view->update();
|
||||
m_window->request_redraw();
|
||||
}
|
||||
}
|
||||
@ -513,6 +271,7 @@ void BufferPane::kill_character_at_cursor()
|
||||
{
|
||||
m_iterator->go_left_in_line();
|
||||
}
|
||||
m_buffer_view->update();
|
||||
m_window->request_redraw();
|
||||
}
|
||||
}
|
||||
@ -534,92 +293,12 @@ size_t BufferPane::display_column() const
|
||||
return m_cursor_virtual_column + 1u;
|
||||
}
|
||||
|
||||
void BufferPane::cursor_move(Window::CursorMovement which)
|
||||
void BufferPane::cursor_move(BufferPane::CursorMovement which)
|
||||
{
|
||||
bool moved = false;
|
||||
|
||||
switch (which)
|
||||
{
|
||||
case Window::CursorMovement::LEFT:
|
||||
moved = m_iterator->go_left_in_line();
|
||||
break;
|
||||
case Window::CursorMovement::RIGHT:
|
||||
moved = m_iterator->go_right_in_line(insert_mode());
|
||||
break;
|
||||
case Window::CursorMovement::UP:
|
||||
moved = m_iterator->go_previous_line();
|
||||
break;
|
||||
case Window::CursorMovement::DOWN:
|
||||
moved = m_iterator->go_next_line();
|
||||
break;
|
||||
case Window::CursorMovement::SOL:
|
||||
moved = m_iterator->go_start_of_line();
|
||||
break;
|
||||
case Window::CursorMovement::EOL:
|
||||
moved = m_iterator->go_end_of_line(insert_mode());
|
||||
break;
|
||||
case Window::CursorMovement::FIRST_LINE:
|
||||
{
|
||||
auto it = m_buffer->begin();
|
||||
if (it != *m_iterator)
|
||||
{
|
||||
*m_iterator = it;
|
||||
moved = true;
|
||||
}
|
||||
}
|
||||
break;
|
||||
case Window::CursorMovement::LAST_LINE:
|
||||
{
|
||||
auto it = m_buffer->end();
|
||||
it.go_back();
|
||||
it.go_start_of_line();
|
||||
if (it != *m_iterator)
|
||||
{
|
||||
*m_iterator = it;
|
||||
moved = true;
|
||||
}
|
||||
}
|
||||
break;
|
||||
case Window::CursorMovement::SCREEN_ROW_UP:
|
||||
moved = move_cursor_screen_row_up();
|
||||
break;
|
||||
case Window::CursorMovement::SCREEN_ROW_DOWN:
|
||||
moved = move_cursor_screen_row_down();
|
||||
break;
|
||||
}
|
||||
bool moved = m_buffer_view->cursor_move(which, insert_mode());
|
||||
if (moved)
|
||||
{
|
||||
switch (which)
|
||||
{
|
||||
case Window::CursorMovement::LEFT:
|
||||
case Window::CursorMovement::RIGHT:
|
||||
{
|
||||
Buffer::Iterator start_of_line = *m_iterator;
|
||||
start_of_line.go_start_of_line();
|
||||
calculate_rows_in_cursor_line(start_of_line);
|
||||
m_target_column = m_cursor_virtual_column;
|
||||
}
|
||||
break;
|
||||
case Window::CursorMovement::UP:
|
||||
forward_to_column(m_target_column, insert_mode());
|
||||
break;
|
||||
case Window::CursorMovement::DOWN:
|
||||
forward_to_column(m_target_column, insert_mode());
|
||||
break;
|
||||
case Window::CursorMovement::SOL:
|
||||
m_target_column = 0;
|
||||
break;
|
||||
case Window::CursorMovement::EOL:
|
||||
m_target_column = INT_MAX;
|
||||
break;
|
||||
case Window::CursorMovement::FIRST_LINE:
|
||||
m_cursor_screen_row = 0;
|
||||
break;
|
||||
case Window::CursorMovement::LAST_LINE:
|
||||
m_cursor_screen_row = m_rows;
|
||||
break;
|
||||
}
|
||||
m_cursor_screen_row = determine_new_cursor_screen_row();
|
||||
m_buffer_view->update();
|
||||
m_window->request_redraw();
|
||||
}
|
||||
}
|
||||
@ -654,7 +333,7 @@ void BufferPane::enter_insert_mode(Window::EnterInsertModeMode which)
|
||||
m_buffer->enter_insert_mode();
|
||||
m_buffer->insert_code_point(*m_iterator, '\n');
|
||||
m_buffer->exit_insert_mode();
|
||||
cursor_move(Window::CursorMovement::UP);
|
||||
cursor_move(CursorMovement::UP);
|
||||
enter_insert_mode(Window::EnterInsertModeMode::START_OF_CHAR);
|
||||
break;
|
||||
case Window::EnterInsertModeMode::NEW_LINE_AFTER:
|
||||
@ -664,6 +343,7 @@ void BufferPane::enter_insert_mode(Window::EnterInsertModeMode which)
|
||||
break;
|
||||
}
|
||||
|
||||
m_buffer_view->update();
|
||||
m_window->request_redraw();
|
||||
}
|
||||
|
||||
@ -687,48 +367,6 @@ int BufferPane::calculate_lines_to_scroll(Window::ScrollMode scroll_mode)
|
||||
return 0;
|
||||
}
|
||||
|
||||
void BufferPane::scroll_window_up(Window::ScrollMode scroll_mode)
|
||||
{
|
||||
int lines_to_scroll = calculate_lines_to_scroll(scroll_mode);
|
||||
int so = effective_scroll_offset();
|
||||
int lines_to_move_cursor = (so + lines_to_scroll) - (m_rows - m_cursor_screen_row - 1);
|
||||
while (lines_to_move_cursor-- > 0)
|
||||
{
|
||||
move_cursor_screen_row_up();
|
||||
}
|
||||
m_cursor_screen_row += lines_to_scroll;
|
||||
m_window->request_redraw();
|
||||
}
|
||||
|
||||
void BufferPane::scroll_window_down(Window::ScrollMode scroll_mode)
|
||||
{
|
||||
int lines_to_scroll = calculate_lines_to_scroll(scroll_mode);
|
||||
int so = effective_scroll_offset();
|
||||
int lines_to_move_cursor = (so + lines_to_scroll) - m_cursor_screen_row;
|
||||
while (lines_to_move_cursor-- > 0)
|
||||
{
|
||||
move_cursor_screen_row_down();
|
||||
}
|
||||
m_cursor_screen_row -= lines_to_scroll;
|
||||
m_window->request_redraw();
|
||||
}
|
||||
|
||||
void BufferPane::forward_to_column(int column, bool allow_eol)
|
||||
{
|
||||
Buffer::Iterator start_of_line = *m_iterator;
|
||||
start_of_line.go_start_of_line();
|
||||
walk_line(start_of_line, [this, &column, &allow_eol](int row_offset, int screen_column, int virtual_column, int character_width, const Buffer::Iterator & i) {
|
||||
uint32_t code_point = *i;
|
||||
if ((code_point != '\n') || allow_eol)
|
||||
{
|
||||
if (virtual_column <= column)
|
||||
{
|
||||
*m_iterator = i;
|
||||
}
|
||||
}
|
||||
});
|
||||
}
|
||||
|
||||
void BufferPane::draw_status_bar()
|
||||
{
|
||||
m_window->gl()->draw_rect(win_x(0), win_y(m_window->font()->get_line_height()), m_width, 1, 0.5, 0.5, 0.5, 1.0);
|
||||
@ -755,12 +393,14 @@ void BufferPane::draw_status_bar()
|
||||
void BufferPane::undo()
|
||||
{
|
||||
m_buffer->undo();
|
||||
m_buffer_view->update();
|
||||
m_window->request_redraw();
|
||||
}
|
||||
|
||||
void BufferPane::redo()
|
||||
{
|
||||
m_buffer->redo();
|
||||
m_buffer_view->update();
|
||||
m_window->request_redraw();
|
||||
}
|
||||
|
||||
@ -775,4 +415,5 @@ void BufferPane::clear()
|
||||
{
|
||||
m_buffer->clear();
|
||||
*m_iterator = m_buffer->begin();
|
||||
m_buffer_view->update();
|
||||
}
|
||||
|
@ -7,14 +7,31 @@
|
||||
#include "GL.h"
|
||||
#include <memory>
|
||||
#include "Window.h"
|
||||
#include "CharacterWidthDeterminer.h"
|
||||
#include "BufferView.h"
|
||||
|
||||
class BufferPane : public Pane
|
||||
{
|
||||
public:
|
||||
class Cwd : public CharacterWidthDeterminer
|
||||
{
|
||||
public:
|
||||
Cwd(Window * window)
|
||||
{
|
||||
m_window = window;
|
||||
}
|
||||
int operator()(uint32_t character);
|
||||
|
||||
protected:
|
||||
Window * m_window;
|
||||
};
|
||||
|
||||
typedef BufferView::CursorMovement CursorMovement;
|
||||
|
||||
BufferPane(Window * window, std::shared_ptr<Buffer> buffer);
|
||||
void resize(int width, int height) override;
|
||||
void draw();
|
||||
void cursor_move(Window::CursorMovement which);
|
||||
void cursor_move(CursorMovement which);
|
||||
void enter_insert_mode(Window::EnterInsertModeMode which);
|
||||
void insert_code_point(uint32_t code_point);
|
||||
void exit_insert_mode();
|
||||
@ -34,28 +51,13 @@ public:
|
||||
m_focused = focused;
|
||||
}
|
||||
void clear();
|
||||
int calculate_rows_in_line(const Buffer::Iterator & start_of_line);
|
||||
std::shared_ptr<Buffer> buffer() const { return m_buffer; }
|
||||
|
||||
protected:
|
||||
int effective_scroll_offset()
|
||||
{
|
||||
return std::min(m_scroll_offset, (m_rows - 1) / 2);
|
||||
}
|
||||
int draw_buffer_line(int screen_row, const Buffer::Iterator & start_of_line);
|
||||
void draw_buffer_line(int screen_row, std::shared_ptr<Buffer::Iterator> start_of_line);
|
||||
void draw_character(uint32_t character, int screen_row, int screen_column);
|
||||
int character_width(uint32_t character);
|
||||
void draw_cursor(int x, int y, int i, int columns);
|
||||
void draw_crosshair(int x, int y);
|
||||
int calculate_rows_in_cursor_line(const Buffer::Iterator & start_of_line);
|
||||
int calculate_rows_in_line_with_iterator_offset(const Buffer::Iterator & start_of_line, const Buffer::Iterator & reference, int * iterator_row_offset);
|
||||
int screen_rows_below_line(const Buffer::Iterator & line);
|
||||
int screen_rows_above_line(const Buffer::Iterator & line, std::list<std::pair<int, Buffer::Iterator>> & backward_lines);
|
||||
void update_cursor_row(std::list<std::pair<int, Buffer::Iterator>> & backward_lines);
|
||||
bool move_cursor_screen_row_up();
|
||||
bool move_cursor_screen_row_down();
|
||||
void walk_line(const Buffer::Iterator & start_of_line, std::function<void(int, int, int, int, const Buffer::Iterator &)> callback);
|
||||
int determine_new_cursor_screen_row();
|
||||
void draw_crosshair(int x, int y, int width = -1, int height = -1);
|
||||
int col_x(int col)
|
||||
{
|
||||
return col * m_window->font()->get_advance();
|
||||
@ -64,7 +66,6 @@ protected:
|
||||
{
|
||||
return m_height - (row + 1) * m_window->font()->get_line_height();
|
||||
}
|
||||
void forward_to_column(int column, bool allow_eol);
|
||||
size_t display_line() const { return m_iterator->line() + 1u; }
|
||||
size_t display_column() const;
|
||||
void draw_status_bar();
|
||||
@ -72,6 +73,8 @@ protected:
|
||||
|
||||
Window * m_window;
|
||||
std::shared_ptr<Buffer> m_buffer;
|
||||
Cwd m_cwd;
|
||||
std::shared_ptr<BufferView> m_buffer_view;
|
||||
int m_rows;
|
||||
int m_columns;
|
||||
int m_scroll_offset;
|
||||
|
@ -280,22 +280,22 @@ void Window::handle_keyval(uint32_t keyval)
|
||||
switch (keyval)
|
||||
{
|
||||
case SDLK_HOME:
|
||||
m_focused_buffer_pane->cursor_move(CursorMovement::SOL);
|
||||
m_focused_buffer_pane->cursor_move(BufferPane::CursorMovement::SOL);
|
||||
break;
|
||||
case SDLK_END:
|
||||
m_focused_buffer_pane->cursor_move(CursorMovement::EOL);
|
||||
m_focused_buffer_pane->cursor_move(BufferPane::CursorMovement::EOL);
|
||||
break;
|
||||
case SDLK_RIGHT:
|
||||
m_focused_buffer_pane->cursor_move(CursorMovement::RIGHT);
|
||||
m_focused_buffer_pane->cursor_move(BufferPane::CursorMovement::RIGHT);
|
||||
break;
|
||||
case SDLK_LEFT:
|
||||
m_focused_buffer_pane->cursor_move(CursorMovement::LEFT);
|
||||
m_focused_buffer_pane->cursor_move(BufferPane::CursorMovement::LEFT);
|
||||
break;
|
||||
case SDLK_DOWN:
|
||||
m_focused_buffer_pane->cursor_move(CursorMovement::DOWN);
|
||||
m_focused_buffer_pane->cursor_move(BufferPane::CursorMovement::DOWN);
|
||||
break;
|
||||
case SDLK_UP:
|
||||
m_focused_buffer_pane->cursor_move(CursorMovement::UP);
|
||||
m_focused_buffer_pane->cursor_move(BufferPane::CursorMovement::UP);
|
||||
break;
|
||||
case SDLK_PAGEUP:
|
||||
m_focused_buffer_pane->scroll_window_up(ScrollMode::WHOLE_SCREEN);
|
||||
@ -340,10 +340,10 @@ void Window::handle_keyval(uint32_t keyval)
|
||||
switch (keyval)
|
||||
{
|
||||
case '0':
|
||||
m_focused_buffer_pane->cursor_move(CursorMovement::SOL);
|
||||
m_focused_buffer_pane->cursor_move(BufferPane::CursorMovement::SOL);
|
||||
break;
|
||||
case '$':
|
||||
m_focused_buffer_pane->cursor_move(CursorMovement::EOL);
|
||||
m_focused_buffer_pane->cursor_move(BufferPane::CursorMovement::EOL);
|
||||
break;
|
||||
case ':':
|
||||
m_command_buffer_pane->clear();
|
||||
@ -353,7 +353,7 @@ void Window::handle_keyval(uint32_t keyval)
|
||||
m_focused_buffer_pane->enter_insert_mode(EnterInsertModeMode::END_OF_LINE);
|
||||
break;
|
||||
case 'G':
|
||||
m_focused_buffer_pane->cursor_move(CursorMovement::LAST_LINE);
|
||||
m_focused_buffer_pane->cursor_move(BufferPane::CursorMovement::LAST_LINE);
|
||||
break;
|
||||
case 'I':
|
||||
m_focused_buffer_pane->enter_insert_mode(EnterInsertModeMode::START_OF_LINE);
|
||||
@ -365,22 +365,22 @@ void Window::handle_keyval(uint32_t keyval)
|
||||
m_focused_buffer_pane->enter_insert_mode(EnterInsertModeMode::END_OF_CHAR);
|
||||
break;
|
||||
case 'g':
|
||||
m_focused_buffer_pane->cursor_move(CursorMovement::FIRST_LINE);
|
||||
m_focused_buffer_pane->cursor_move(BufferPane::CursorMovement::FIRST_LINE);
|
||||
break;
|
||||
case 'h':
|
||||
m_focused_buffer_pane->cursor_move(CursorMovement::LEFT);
|
||||
m_focused_buffer_pane->cursor_move(BufferPane::CursorMovement::LEFT);
|
||||
break;
|
||||
case 'i':
|
||||
m_focused_buffer_pane->enter_insert_mode(EnterInsertModeMode::START_OF_CHAR);
|
||||
break;
|
||||
case 'j':
|
||||
m_focused_buffer_pane->cursor_move(CursorMovement::DOWN);
|
||||
m_focused_buffer_pane->cursor_move(BufferPane::CursorMovement::DOWN);
|
||||
break;
|
||||
case 'k':
|
||||
m_focused_buffer_pane->cursor_move(CursorMovement::UP);
|
||||
m_focused_buffer_pane->cursor_move(BufferPane::CursorMovement::UP);
|
||||
break;
|
||||
case 'l':
|
||||
m_focused_buffer_pane->cursor_move(CursorMovement::RIGHT);
|
||||
m_focused_buffer_pane->cursor_move(BufferPane::CursorMovement::RIGHT);
|
||||
break;
|
||||
case 'o':
|
||||
m_focused_buffer_pane->enter_insert_mode(EnterInsertModeMode::NEW_LINE_AFTER);
|
||||
@ -433,7 +433,8 @@ void Window::resize()
|
||||
void Window::redraw()
|
||||
{
|
||||
static int last_command_buffer_screen_rows = 0;
|
||||
m_command_buffer_screen_rows = std::min(5, m_command_buffer_pane->calculate_rows_in_line(m_command_buffer->begin()));
|
||||
/* TODO: figure out number of command buffer screen rows. */
|
||||
m_command_buffer_screen_rows = 1;
|
||||
if (m_command_buffer_screen_rows != last_command_buffer_screen_rows)
|
||||
{
|
||||
resize();
|
||||
|
@ -27,20 +27,6 @@ public:
|
||||
};
|
||||
};
|
||||
|
||||
enum class CursorMovement : uint8_t
|
||||
{
|
||||
LEFT,
|
||||
RIGHT,
|
||||
UP,
|
||||
DOWN,
|
||||
SOL,
|
||||
EOL,
|
||||
FIRST_LINE,
|
||||
LAST_LINE,
|
||||
SCREEN_ROW_UP,
|
||||
SCREEN_ROW_DOWN,
|
||||
};
|
||||
|
||||
enum class ScrollMode : uint8_t
|
||||
{
|
||||
ONE_LINE,
|
||||
|
Loading…
x
Reference in New Issue
Block a user