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Shift-{H,J,K,L} keys move cursor while selecting.

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This commit is contained in:
Maxime Coste 2011-09-17 14:28:23 +00:00
parent 34c9b0d30f
commit 0513b4de29
2 changed files with 23 additions and 7 deletions
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26
src/main.cc
View File

@ -346,12 +346,30 @@ void do_search(Window& window)
catch (prompt_aborted&) {}
}
Selection move_select(Window& window, const BufferIterator& cursor, const WindowCoord& offset)
{
WindowCoord cursor_pos = window.line_and_column_at(cursor);
WindowCoord new_pos = cursor_pos + offset;
return Selection(cursor, window.iterator_at(new_pos));
}
std::unordered_map<char, std::function<void (Window& window, int count)>> keymap =
{
{ 'h', [](Window& window, int count) { if (count == 0) count = 1; window.move_cursor(WindowCoord(0, -count)); window.empty_selections(); } },
{ 'j', [](Window& window, int count) { if (count == 0) count = 1; window.move_cursor(WindowCoord(count, 0)); window.empty_selections(); } },
{ 'k', [](Window& window, int count) { if (count == 0) count = 1; window.move_cursor(WindowCoord(-count, 0)); window.empty_selections(); } },
{ 'l', [](Window& window, int count) { if (count == 0) count = 1; window.move_cursor(WindowCoord(0, count)); window.empty_selections(); } },
{ 'h', [](Window& window, int count) { window.move_cursor(WindowCoord(0, -std::max(count,1))); window.empty_selections(); } },
{ 'j', [](Window& window, int count) { window.move_cursor(WindowCoord( std::max(count,1), 0)); window.empty_selections(); } },
{ 'k', [](Window& window, int count) { window.move_cursor(WindowCoord(-std::max(count,1), 0)); window.empty_selections(); } },
{ 'l', [](Window& window, int count) { window.move_cursor(WindowCoord(0, std::max(count,1))); window.empty_selections(); } },
{ 'H', [](Window& window, int count) { window.select(true, std::bind(move_select, std::ref(window), std::placeholders::_1,
WindowCoord(0, -std::max(count,1)))); } },
{ 'J', [](Window& window, int count) { window.select(true, std::bind(move_select, std::ref(window), std::placeholders::_1,
WindowCoord( std::max(count,1), 0))); } },
{ 'K', [](Window& window, int count) { window.select(true, std::bind(move_select, std::ref(window), std::placeholders::_1,
WindowCoord(-std::max(count,1), 0))); } },
{ 'L', [](Window& window, int count) { window.select(true, std::bind(move_select, std::ref(window), std::placeholders::_1,
WindowCoord(0, std::max(count,1)))); } },
{ 'd', [](Window& window, int count) { window.erase(); window.empty_selections(); } },
{ 'c', [](Window& window, int count) { window.erase(); do_insert(window); } },
{ 'i', [](Window& window, int count) { do_insert(window); } },

4
src/window.cc
View File

@ -137,9 +137,7 @@ void Window::select(bool append, const Selector& selector)
void Window::move_cursor(const WindowCoord& offset)
{
BufferCoord target_position =
window_to_buffer(WindowCoord(m_cursor.line + offset.line,
m_cursor.column + offset.column));
BufferCoord target_position = window_to_buffer(m_cursor + offset);
m_cursor = buffer_to_window(m_buffer.clamp(target_position));