2009-06-01 02:59:15 +00:00
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/* ASE - Allegro Sprite Editor
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* Copyright (C) 2001-2009 David Capello
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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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#include "config.h"
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#include <cassert>
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#include <algorithm>
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2009-08-09 21:24:32 +00:00
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#include "context.h"
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2009-06-10 23:04:27 +00:00
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#include "raster/sprite.h"
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2009-06-01 02:59:15 +00:00
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Context::Context()
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{
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m_current_sprite = NULL;
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}
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Context::~Context()
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{
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for (SpriteList::iterator
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it = m_sprites.begin(); it != m_sprites.end(); ++it) {
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Sprite* sprite = *it;
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delete sprite;
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}
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m_sprites.clear();
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}
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const SpriteList& Context::get_sprite_list() const
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{
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return m_sprites;
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}
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Sprite* Context::get_first_sprite() const
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{
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if (!m_sprites.empty())
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return m_sprites.front();
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else
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return NULL;
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}
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Sprite* Context::get_next_sprite(Sprite* sprite) const
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{
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assert(sprite != NULL);
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SpriteList::const_iterator it = std::find(m_sprites.begin(), m_sprites.end(), sprite);
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if (it != m_sprites.end()) {
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++it;
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if (it != m_sprites.end())
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return *it;
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}
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return NULL;
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}
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/**
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* Append the sprite to the context's sprites' list.
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*/
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void Context::add_sprite(Sprite* sprite)
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{
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assert(sprite != NULL);
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m_sprites.push_front(sprite);
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// generate on_add_sprite event
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on_add_sprite(sprite);
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}
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void Context::remove_sprite(Sprite* sprite)
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{
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assert(sprite != NULL);
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SpriteList::iterator it = std::find(m_sprites.begin(), m_sprites.end(), sprite);
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assert(it != m_sprites.end());
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// remove the item from the sprites list
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m_sprites.erase(it);
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// generate on_remove_sprite event
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on_remove_sprite(sprite);
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// the current sprite cannot be the removed sprite anymore
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if (m_current_sprite == sprite)
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set_current_sprite(NULL);
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}
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void Context::send_sprite_to_top(Sprite* sprite)
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{
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assert(sprite);
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SpriteList::iterator it = std::find(m_sprites.begin(), m_sprites.end(), sprite);
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assert(it != m_sprites.end());
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// remove the item from the sprites list
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m_sprites.erase(it);
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// add it again
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m_sprites.push_front(sprite);
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}
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Sprite* Context::get_current_sprite() const
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{
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return m_current_sprite;
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}
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void Context::set_current_sprite(Sprite* sprite)
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{
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m_current_sprite = sprite;
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on_set_current_sprite(sprite);
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}
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void Context::on_add_sprite(Sprite* sprite)
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{
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// do nothing
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}
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void Context::on_remove_sprite(Sprite* sprite)
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{
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// do nothing
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}
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void Context::on_set_current_sprite(Sprite* sprite)
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{
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// do nothing
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}
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