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add Window::display_selection_at(LineCount)

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This commit is contained in:
Maxime Coste 2013-04-11 21:01:00 +02:00
parent 301921cd45
commit fb87c7ac9f
2 changed files with 11 additions and 2 deletions
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12
src/window.cc
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@ -38,10 +38,18 @@ Window::~Window()
m_options.unregister_watcher(*this); m_options.unregister_watcher(*this);
} }
void Window::display_selection_at(LineCount line)
{
if (line >= 0 or line < m_dimensions.line)
{
auto cursor_line = main_selection().last().line();
m_position.line = std::max(0_line, cursor_line - line);
}
}
void Window::center_selection() void Window::center_selection()
{ {
BufferIterator cursor = main_selection().last(); display_selection_at(m_dimensions.line/2_line);
m_position.line = std::max(0_line, cursor.line() - m_dimensions.line/2_line);
} }
void Window::update_display_buffer() void Window::update_display_buffer()

1
src/window.hh
View File

@ -33,6 +33,7 @@ public:
const DisplayBuffer& display_buffer() const { return m_display_buffer; } const DisplayBuffer& display_buffer() const { return m_display_buffer; }
void center_selection(); void center_selection();
void display_selection_at(LineCount line);
void update_display_buffer(); void update_display_buffer();
DisplayCoord display_position(const BufferIterator& it); DisplayCoord display_position(const BufferIterator& it);