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/*
* Copyright 2009, Google Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following disclaimer
* in the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Google Inc. nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
// This file contains the definition of Element.
#include "core/cross/element.h"
#include "core/cross/error.h"
#include "core/cross/pack.h"
#include "core/cross/shape.h"
namespace o3d {
const char* Element::kMaterialParamName =
O3D_STRING_CONSTANT("material");
const char* Element::kBoundingBoxParamName =
O3D_STRING_CONSTANT("boundingBox");
const char* Element::kPriorityParamName =
O3D_STRING_CONSTANT("priority");
const char* Element::kZSortPointParamName =
O3D_STRING_CONSTANT("zSortPoint");
const char* Element::kCullParamName =
O3D_STRING_CONSTANT("cull");
O3D_DEFN_CLASS(Element, ParamObject);
Element::Element(ServiceLocator* service_locator)
: ParamObject(service_locator),
owner_(NULL) {
RegisterParamRef(kMaterialParamName, &material_param_ref_);
RegisterParamRef(kBoundingBoxParamName, &bounding_box_param_ref_);
RegisterParamRef(kPriorityParamName, &priority_param_ref_);
RegisterParamRef(kZSortPointParamName, &z_sort_point_param_ref_);
RegisterParamRef(kCullParamName, &cull_param_ref_);
}
Element::~Element() {
}
void Element::SetOwner(Shape* new_owner) {
// Hold a ref to ourselves so we make sure we don't get deleted while
// as we remove ourself from our current owner.
Element::Ref temp(this);
if (owner_ != NULL) {
bool removed = owner_->RemoveElement(this);
DLOG_ASSERT(removed);
}
owner_ = new_owner;
if (new_owner) {
new_owner->AddElement(this);
}
}
// Adds a DrawElement to this Element and associates it to a group name.
void Element::AddDrawElement(DrawElement* draw_element) {
DCHECK(draw_element);
draw_elements_.push_back(DrawElement::Ref(draw_element));
}
// Removes a DrawElement from this Element by group name.
bool Element::RemoveDrawElement(DrawElement* draw_element) {
DrawElementRefArray::iterator iter = std::find(
draw_elements_.begin(),
draw_elements_.end(),
DrawElement::Ref(draw_element));
if (iter != draw_elements_.end()) {
draw_elements_.erase(iter);
return true;
}
return false;
}
// Gets all the DrawPrimtives under this Element.
DrawElementArray Element::GetDrawElements() const {
DrawElementArray draw_elements;
draw_elements.reserve(draw_elements_.size());
std::copy(draw_elements_.begin(),
draw_elements_.end(),
std::back_inserter(draw_elements));
return draw_elements;
}
DrawElement* Element::CreateDrawElement(Pack* pack, Material* material) {
DrawElement* draw_element = pack->Create<DrawElement>();
draw_element->set_material(material);
draw_element->SetOwner(this);
return draw_element;
}
} // namespace o3d
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