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https://github.com/rakshasa/rtorrent.git
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* UI refactoring, added display::Frame and started cleaning up the
code. git-svn-id: svn://rakshasa.no/libtorrent/trunk/rtorrent@747 e378c898-3ddf-0310-93e7-cc216c733640
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rakshasa
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// rTorrent - BitTorrent client
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// Copyright (C) 2005-2006, Jari Sundell
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//
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// This program is free software; you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation; either version 2 of the License, or
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// (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with this program; if not, write to the Free Software
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// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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//
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// In addition, as a special exception, the copyright holders give
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// permission to link the code of portions of this program with the
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// OpenSSL library under certain conditions as described in each
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// individual source file, and distribute linked combinations
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// including the two.
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//
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// You must obey the GNU General Public License in all respects for
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// all of the code used other than OpenSSL. If you modify file(s)
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// with this exception, you may extend this exception to your version
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// of the file(s), but you are not obligated to do so. If you do not
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// wish to do so, delete this exception statement from your version.
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// If you delete this exception statement from all source files in the
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// program, then also delete it here.
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//
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// Contact: Jari Sundell <jaris@ifi.uio.no>
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//
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// Skomakerveien 33
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// 3185 Skoppum, NORWAY
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#include "config.h"
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#include <algorithm>
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#include <functional>
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#include <rak/algorithm.h>
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#include <torrent/exceptions.h>
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#include "frame.h"
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#include "window.h"
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namespace display {
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Frame::Frame() :
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m_type(TYPE_NONE),
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m_positionX(0),
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m_positionY(0),
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m_width(0),
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m_height(0) {
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}
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bool
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Frame::is_dynamic() const {
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switch (m_type) {
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case TYPE_NONE:
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return false;
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case TYPE_WINDOW:
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return m_window->is_active() && m_window->is_dynamic();
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case TYPE_ROW:
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case TYPE_COLUMN:
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for (size_type i = 0; i < m_containerSize; ++i)
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if (m_container[i]->is_dynamic())
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return true;
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return false;
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}
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return false;
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}
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Frame::pair_type
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Frame::preferred_size() const {
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switch (m_type) {
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case TYPE_NONE:
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return pair_type(0, 0);
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case TYPE_WINDOW:
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return m_window->is_active() ? pair_type(0, m_window->get_min_height()) : pair_type(0, 0);
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case TYPE_ROW:
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case TYPE_COLUMN:
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{
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pair_type accum(0, 0);
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for (size_type i = 0; i < m_containerSize; ++i) {
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pair_type p = m_container[i]->preferred_size();
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accum.first += p.first;
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accum.second += p.second;
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}
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return accum;
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}
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}
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return pair_type(0, 0);
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}
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void
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Frame::set_container_size(size_type size) {
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if ((m_type != TYPE_ROW && m_type != TYPE_COLUMN) || size >= max_size)
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throw torrent::client_error("Frame::set_container_size(...) Bad state.");
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while (m_containerSize > size) {
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delete m_container[--m_containerSize];
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m_container[m_containerSize] = NULL;
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}
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while (m_containerSize < size) {
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m_container[m_containerSize++] = new Frame();
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}
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}
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void
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Frame::initialize_window(Window* window) {
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if (m_type != TYPE_NONE)
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throw torrent::client_error("Frame::initialize_window(...) m_type != TYPE_NONE.");
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m_type = TYPE_WINDOW;
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m_window = window;
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}
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void
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Frame::initialize_container(Type containerType, size_type size) {
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if (m_type != TYPE_NONE || (containerType != TYPE_ROW && containerType != TYPE_COLUMN))
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throw torrent::client_error("Frame::initialize_container(...) Invalid state.");
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if (size > max_size)
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throw torrent::client_error("Frame::initialize_container(...) size >= max_size.");
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m_type = containerType;
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m_containerSize = size;
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for (size_type i = 0; i < m_containerSize; ++i)
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m_container[i] = new Frame();
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}
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void
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Frame::clear() {
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switch (m_type) {
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case TYPE_ROW:
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case TYPE_COLUMN:
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for (size_type i = 0; i < m_containerSize; ++i) {
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m_container[i]->clear();
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delete m_container[i];
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}
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break;
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default:
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break;
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}
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m_type = TYPE_NONE;
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}
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void
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Frame::refresh() {
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switch (m_type) {
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case TYPE_NONE:
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break;
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case TYPE_WINDOW:
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if (m_window->is_active())
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m_window->refresh();
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break;
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case TYPE_ROW:
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case TYPE_COLUMN:
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for (Frame **itr = m_container, **last = m_container + m_containerSize; itr != last; ++itr)
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(*itr)->refresh();
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break;
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}
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}
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void
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Frame::balance(uint32_t x, uint32_t y, uint32_t width, uint32_t height) {
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m_positionX = x;
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m_positionY = y;
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m_width = width;
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m_height = height;
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if (m_type == TYPE_NONE)
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return;
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if (m_type == TYPE_WINDOW) {
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if (m_window->is_active())
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m_window->resize(x, y, width, height);
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return;
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}
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uint32_t size;
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if (m_type == TYPE_ROW)
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size = height - std::min(height, preferred_size().second);
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else
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size = width - std::min(width, preferred_size().first);
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uint32_t dynamicCount = std::count_if(m_container, m_container + m_containerSize, std::mem_fun(&Frame::is_dynamic));
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for (Frame **itr = m_container, **last = m_container + m_containerSize; itr != last; ++itr) {
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uint32_t s;
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if ((*itr)->is_dynamic()) {
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s = (size + dynamicCount - 1) / dynamicCount;
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size -= s;
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dynamicCount--;
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} else {
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s = 0;
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}
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if (m_type == TYPE_ROW) {
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s += (*itr)->preferred_size().second;
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(*itr)->balance(x, y, m_width, s);
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y += s;
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} else {
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s += (*itr)->preferred_size().first;
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(*itr)->balance(x, y, s, height);
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x += s;
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}
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}
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}
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}
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