#include "BufferView.h"

BufferView::BufferView(std::shared_ptr<Buffer> buffer,
        std::shared_ptr<Buffer::Iterator> iterator,
        CharacterWidthDeterminer & character_width_determiner)
    : m_iterator(iterator)
{
    m_height = 1;
    m_scroll_offset = 0;
    m_cursor_screen_row = 0;
    m_buffer_line_walker = std::make_shared<BufferLineWalker>(buffer, character_width_determiner);
}

void BufferView::resize(int width, int height)
{
    m_buffer_line_walker->set_width(width);
    m_height = std::max(1, height);
}

void BufferView::set_scroll_offset(int scroll_offset)
{
    m_scroll_offset = std::max(0, scroll_offset);
}