scummvm/engines/grim/costume/component.cpp
2021-12-26 21:19:38 +01:00

102 lines
2.4 KiB
C++

/* ScummVM - Graphic Adventure Engine
*
* ScummVM is the legal property of its developers, whose names
* are too numerous to list here. Please refer to the COPYRIGHT
* file distributed with this source distribution.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
*/
#include "engines/grim/costume/component.h"
#include "engines/grim/colormap.h"
#include "engines/grim/costume.h"
namespace Grim {
Component::Component(Component *p, int parentID, const char *name, tag32 t) :
_visible(true), _tag(t), _parentID(parentID), _name(name),
_previousCmap(nullptr), _cmap(nullptr), _cost(nullptr) {
setParent(p);
}
Component::~Component() {
if (_parent)
_parent->removeChild(this);
Component *child = _child;
while (child) {
child->_parent = nullptr;
child = child->_sibling;
}
}
void Component::setColormap(CMap *c) {
if (c)
_cmap = c;
if (getCMap()) {
resetHierCMap();
}
}
bool Component::isVisible() {
if (_visible && _parent)
return _parent->isVisible();
return _visible;
}
CMap *Component::getCMap() {
if (!_cmap && _previousCmap)
return _previousCmap;
else if (!_cmap && _parent)
return _parent->getCMap();
else if (!_cmap && !_parent && _cost)
return _cost->getCMap();
else
return _cmap;
}
void Component::setParent(Component *newParent) {
_parent = newParent;
_child = nullptr;
_sibling = nullptr;
if (_parent) {
_sibling = _parent->_child;
_parent->_child = this;
}
}
void Component::removeChild(Component *child) {
Component **childPos = &_child;
while (*childPos && *childPos != child)
childPos = &(*childPos)->_sibling;
if (*childPos) {
*childPos = child->_sibling;
child->_parent = nullptr;
}
}
void Component::resetHierCMap() {
resetColormap();
Component *child = _child;
while (child) {
child->resetHierCMap();
child = child->_sibling;
}
}
} // end of namespace Grim