385 lines
10 KiB
C++
385 lines
10 KiB
C++
#include "torrent_view.hpp"
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#include "print.hpp"
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#include "libtorrent/torrent_status.hpp"
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const int header_size = 2;
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std::string torrent_state(lt::torrent_status const& s)
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{
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static char const* state_str[] =
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{"checking (q)", "checking", "dl metadata"
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, "downloading", "finished", "seeding", "allocating", "checking (r)"};
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if (s.errc) return s.errc.message();
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std::string ret;
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if (s.paused && !s.auto_managed) ret += "paused";
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else if (s.paused && s.auto_managed) ret += "queued";
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else if (s.upload_mode) ret += "upload mode";
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else ret += state_str[s.state];
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if (!s.paused && !s.auto_managed) ret += " [F]";
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char buf[10];
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std::snprintf(buf, sizeof(buf), " (%.1f%%)", s.progress_ppm / 10000.f);
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ret += buf;
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return ret;
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}
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bool compare_torrent(lt::torrent_status const* lhs, lt::torrent_status const* rhs)
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{
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if (lhs->queue_position != -1 && rhs->queue_position != -1)
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{
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// both are downloading, sort by queue pos
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return lhs->queue_position < rhs->queue_position;
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}
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else if (lhs->queue_position == -1 && rhs->queue_position == -1)
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{
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// both are seeding, sort by seed-rank
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if (lhs->seed_rank != rhs->seed_rank)
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return lhs->seed_rank > rhs->seed_rank;
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return lhs->info_hash < rhs->info_hash;
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}
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return (lhs->queue_position == -1) < (rhs->queue_position == -1);
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}
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torrent_view::torrent_view()
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: m_active_torrent(0)
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, m_scroll_position(0)
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, m_torrent_filter(0)
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, m_width(80)
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, m_height(30)
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{}
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void torrent_view::set_size(int width, int height)
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{
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if (m_width == width && m_height == height) return;
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m_width = width;
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m_height = height;
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render();
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}
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int torrent_view::filter() const
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{
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return m_torrent_filter;
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}
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void torrent_view::set_filter(int filter)
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{
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if (filter == m_torrent_filter) return;
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m_torrent_filter = filter;
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update_filtered_torrents();
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render();
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}
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// returns the lt::torrent_status of the currently selected torrent.
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lt::torrent_status const& torrent_view::get_active_torrent() const
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{
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if (m_active_torrent >= int(m_filtered_handles.size()))
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m_active_torrent = int(m_filtered_handles.size()) - 1;
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if (m_active_torrent < 0) m_active_torrent = 0;
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TORRENT_ASSERT(m_active_torrent >= 0);
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return *m_filtered_handles[m_active_torrent];
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}
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lt::torrent_handle torrent_view::get_active_handle() const
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{
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if (m_active_torrent >= int(m_filtered_handles.size()))
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m_active_torrent = int(m_filtered_handles.size()) - 1;
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if (m_active_torrent < 0) m_active_torrent = 0;
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TORRENT_ASSERT(m_active_torrent >= 0);
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if (m_filtered_handles.empty()) return lt::torrent_handle();
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return m_filtered_handles[m_active_torrent]->handle;
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}
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void torrent_view::update_torrents(std::vector<lt::torrent_status> const& st)
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{
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std::set<lt::torrent_handle> updates;
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bool need_filter_update = false;
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for (std::vector<lt::torrent_status>::const_iterator i = st.begin();
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i != st.end(); ++i)
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{
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boost::unordered_set<lt::torrent_status>::iterator j = m_all_handles.find(*i);
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// add new entries here
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if (j == m_all_handles.end())
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{
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j = m_all_handles.insert(*i).first;
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if (show_torrent(*j))
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{
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m_filtered_handles.push_back(&*j);
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need_filter_update = true;
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}
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}
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else
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{
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bool prev_show = show_torrent(*j);
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((lt::torrent_status&)*j) = *i;
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if (prev_show != show_torrent(*j))
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need_filter_update = true;
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else
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updates.insert(i->handle);
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}
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}
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if (need_filter_update)
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{
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update_filtered_torrents();
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render();
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}
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else
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{
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int torrent_index = 0;
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for (std::vector<lt::torrent_status const*>::iterator i
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= m_filtered_handles.begin();
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i != m_filtered_handles.end(); ++torrent_index)
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{
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if (torrent_index < m_scroll_position
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|| torrent_index >= m_scroll_position + m_height - header_size)
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{
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++i;
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continue;
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}
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lt::torrent_status const& s = **i;
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++i;
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if (!s.handle.is_valid())
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continue;
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if (updates.count(s.handle) == 0)
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continue;
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set_cursor_pos(0, header_size + torrent_index - m_scroll_position);
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print_torrent(s, torrent_index == m_active_torrent);
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}
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}
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}
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int torrent_view::height() const
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{
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return m_height;
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}
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void torrent_view::arrow_up()
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{
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if (m_filtered_handles.empty()) return;
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if (m_active_torrent <= 0) return;
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if (m_active_torrent - 1 < m_scroll_position)
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{
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--m_active_torrent;
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m_scroll_position = m_active_torrent;
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TORRENT_ASSERT(m_scroll_position >= 0);
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render();
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return;
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}
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set_cursor_pos(0, header_size + m_active_torrent - m_scroll_position);
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print_torrent(*m_filtered_handles[m_active_torrent], false);
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--m_active_torrent;
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TORRENT_ASSERT(m_active_torrent >= 0);
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set_cursor_pos(0, header_size + m_active_torrent - m_scroll_position);
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print_torrent(*m_filtered_handles[m_active_torrent], true);
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}
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void torrent_view::arrow_down()
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{
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if (m_filtered_handles.empty()) return;
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if (m_active_torrent >= int(m_filtered_handles.size()) - 1) return;
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int bottom_pos = m_height - header_size - 1;
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if (m_active_torrent - m_scroll_position + 1 > bottom_pos)
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{
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++m_active_torrent;
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m_scroll_position = m_active_torrent - bottom_pos;
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TORRENT_ASSERT(m_scroll_position >= 0);
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render();
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return;
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}
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set_cursor_pos(0, header_size + m_active_torrent - m_scroll_position);
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print_torrent(*m_filtered_handles[m_active_torrent], false);
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TORRENT_ASSERT(m_active_torrent >= 0);
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++m_active_torrent;
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set_cursor_pos(0, header_size + m_active_torrent - m_scroll_position);
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print_torrent(*m_filtered_handles[m_active_torrent], true);
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}
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void torrent_view::render()
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{
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print_tabs();
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print_headers();
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int lines_printed = header_size;
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int torrent_index = 0;
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for (std::vector<lt::torrent_status const*>::iterator i = m_filtered_handles.begin();
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i != m_filtered_handles.end(); ++torrent_index)
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{
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if (torrent_index < m_scroll_position)
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{
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++i;
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continue;
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}
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if (lines_printed >= m_height)
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break;
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lt::torrent_status const& s = **i;
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if (!s.handle.is_valid())
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{
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i = m_filtered_handles.erase(i);
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continue;
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}
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++i;
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set_cursor_pos(0, torrent_index + header_size - m_scroll_position);
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print_torrent(s, torrent_index == m_active_torrent);
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++lines_printed;
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}
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clear_rows(torrent_index + header_size, m_height);
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}
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void torrent_view::print_tabs()
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{
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set_cursor_pos(0, 0);
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char str[400];
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int pos = 0;
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char const* filter_names[] = { "all", "downloading", "non-paused"
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, "seeding", "queued", "stopped", "checking", "loaded"};
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for (int i = 0; i < int(sizeof(filter_names)/sizeof(filter_names[0])); ++i)
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{
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pos += std::snprintf(str+ pos, sizeof(str) - pos, "%s[%s]%s"
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, m_torrent_filter == i?esc("7"):""
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, filter_names[i], m_torrent_filter == i?esc("0"):"");
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}
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pos += std::snprintf(str + pos, sizeof(str) - pos, "\x1b[K");
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if (m_width + 1 < int(sizeof(str)))
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str[m_width + 1] = '\0';
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print(str);
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}
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void torrent_view::print_headers()
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{
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set_cursor_pos(0, 1);
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char str[400];
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// print title bar for torrent list
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std::snprintf(str, sizeof(str)
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, " %-3s %-50s %-35s %-17s %-17s %-11s %-6s %-6s %-4s\x1b[K"
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, "#", "Name", "Progress", "Download", "Upload", "Peers (D:S)"
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, "Down", "Up", "Flags");
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if (m_width + 1 < int(sizeof(str)))
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str[m_width + 1] = '\0';
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print(str);
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}
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void torrent_view::print_torrent(lt::torrent_status const& s, bool selected)
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{
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int pos = 0;
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char str[512];
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// the active torrent is highligted in the list
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// this inverses the forground and background colors
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char const* selection = "";
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if (selected)
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selection = "\x1b[1m\x1b[44m";
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char queue_pos[16] = {0};
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if (s.queue_position == -1)
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std::snprintf(queue_pos, sizeof(queue_pos), "-");
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else
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std::snprintf(queue_pos, sizeof(queue_pos), "%d", s.queue_position);
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std::string name = s.name;
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if (name.size() > 50) name.resize(50);
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color_code progress_bar_color = col_yellow;
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if (s.errc) progress_bar_color = col_red;
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else if (s.paused) progress_bar_color = col_blue;
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else if (s.state == lt::torrent_status::downloading_metadata)
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progress_bar_color = col_magenta;
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else if (s.current_tracker.empty())
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progress_bar_color = col_green;
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pos += std::snprintf(str + pos, sizeof(str) - pos, "%s%c%-3s %-50s %s%s %s (%s) "
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"%s (%s) %5d:%-5d %s %s %c"
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, selection
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, s.is_loaded ? 'L' : ' '
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, queue_pos
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, name.c_str()
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, progress_bar(s.progress_ppm / 1000, 35, progress_bar_color, '-', '#', torrent_state(s)).c_str()
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, selection
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, color(add_suffix(s.download_rate, "/s"), col_green).c_str()
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, color(add_suffix(s.total_download), col_green).c_str()
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, color(add_suffix(s.upload_rate, "/s"), col_red).c_str()
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, color(add_suffix(s.total_upload), col_red).c_str()
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, s.num_peers - s.num_seeds, s.num_seeds
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, color(add_suffix(s.all_time_download), col_green).c_str()
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, color(add_suffix(s.all_time_upload), col_red).c_str()
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, s.need_save_resume?'S':' ');
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// if this is the selected torrent, restore the background color
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if (selected)
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pos += std::snprintf(str + pos, sizeof(str) - pos, "%s", esc("0"));
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pos += std::snprintf(str + pos, sizeof(str) - pos, "\x1b[K");
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print(str);
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}
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bool torrent_view::show_torrent(lt::torrent_status const& st)
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{
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switch (m_torrent_filter)
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{
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case torrents_all: return true;
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case torrents_downloading:
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return !st.paused
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&& st.state != lt::torrent_status::seeding
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&& st.state != lt::torrent_status::finished;
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case torrents_not_paused: return !st.paused;
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case torrents_seeding:
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return !st.paused
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&& (st.state == lt::torrent_status::seeding
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|| st.state == lt::torrent_status::finished);
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case torrents_queued: return st.paused && st.auto_managed;
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case torrents_stopped: return st.paused && !st.auto_managed;
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case torrents_checking: return st.state == lt::torrent_status::checking_files;
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case torrents_loaded: return st.is_loaded;
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}
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return true;
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}
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// refresh all pointers in m_filtered_handles. This must be done when
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// inserting or removing elements from m_all_handles, since pointers may
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// be invalidated or when a torrent changes status to either become
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// visible or filtered
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void torrent_view::update_filtered_torrents()
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{
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m_scroll_position = 0;
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m_filtered_handles.clear();
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for (boost::unordered_set<lt::torrent_status>::iterator i = m_all_handles.begin()
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, end(m_all_handles.end()); i != end; ++i)
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{
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if (!show_torrent(*i)) continue;
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m_filtered_handles.push_back(&*i);
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}
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if (m_active_torrent >= int(m_filtered_handles.size())) m_active_torrent = int(m_filtered_handles.size()) - 1;
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if (m_active_torrent < 0) m_active_torrent = 0;
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TORRENT_ASSERT(m_active_torrent >= 0);
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std::sort(m_filtered_handles.begin(), m_filtered_handles.end(), &compare_torrent);
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}
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