mirror of https://github.com/axmolengine/axmol.git
110 lines
3.7 KiB
C++
110 lines
3.7 KiB
C++
/****************************************************************************
|
|
Copyright (c) 2017-2018 Xiamen Yaji Software Co., Ltd.
|
|
|
|
https://axmol.dev/
|
|
|
|
Permission is hereby granted, free of charge, to any person obtaining a copy
|
|
of this software and associated documentation files (the "Software"), to deal
|
|
in the Software without restriction, including without limitation the rights
|
|
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
|
copies of the Software, and to permit persons to whom the Software is
|
|
furnished to do so, subject to the following conditions:
|
|
|
|
The above copyright notice and this permission notice shall be included in
|
|
all copies or substantial portions of the Software.
|
|
|
|
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
|
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
|
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
|
THE SOFTWARE.
|
|
****************************************************************************/
|
|
#include "2d/ClippingRectangleNode.h"
|
|
#include "base/Director.h"
|
|
#include "renderer/Renderer.h"
|
|
#include "math/Vec2.h"
|
|
#include "platform/GLView.h"
|
|
|
|
namespace ax
|
|
{
|
|
|
|
ClippingRectangleNode* ClippingRectangleNode::create(const Rect& clippingRegion)
|
|
{
|
|
ClippingRectangleNode* node = new ClippingRectangleNode();
|
|
if (node->init())
|
|
{
|
|
node->setClippingRegion(clippingRegion);
|
|
node->autorelease();
|
|
}
|
|
else
|
|
AX_SAFE_DELETE(node);
|
|
|
|
return node;
|
|
}
|
|
|
|
ClippingRectangleNode* ClippingRectangleNode::create()
|
|
{
|
|
ClippingRectangleNode* node = new ClippingRectangleNode();
|
|
if (node->init())
|
|
node->autorelease();
|
|
else
|
|
AX_SAFE_DELETE(node);
|
|
|
|
return node;
|
|
}
|
|
|
|
void ClippingRectangleNode::setClippingRegion(const Rect& clippingRegion)
|
|
{
|
|
_clippingRegion = clippingRegion;
|
|
}
|
|
|
|
void ClippingRectangleNode::onBeforeVisitScissor()
|
|
{
|
|
if (_clippingEnabled)
|
|
{
|
|
auto renderer = _director->getRenderer();
|
|
_oldScissorTest = renderer->getScissorTest();
|
|
renderer->setScissorTest(true);
|
|
|
|
float scaleX = _scaleX;
|
|
float scaleY = _scaleY;
|
|
Node* parent = this->getParent();
|
|
while (parent)
|
|
{
|
|
scaleX *= parent->getScaleX();
|
|
scaleY *= parent->getScaleY();
|
|
parent = parent->getParent();
|
|
}
|
|
|
|
const Point pos = convertToWorldSpace(Point(_clippingRegion.origin.x, _clippingRegion.origin.y));
|
|
GLView* glView = _director->getGLView();
|
|
glView->setScissorInPoints(pos.x, pos.y, _clippingRegion.size.width * scaleX,
|
|
_clippingRegion.size.height * scaleY);
|
|
}
|
|
}
|
|
|
|
void ClippingRectangleNode::onAfterVisitScissor()
|
|
{
|
|
if (_clippingEnabled)
|
|
_director->getRenderer()->setScissorTest(_oldScissorTest);
|
|
}
|
|
|
|
void ClippingRectangleNode::visit(Renderer* renderer, const Mat4& parentTransform, uint32_t parentFlags)
|
|
{
|
|
auto beforeVisitCmdScissor = renderer->nextCallbackCommand();
|
|
beforeVisitCmdScissor->init(_globalZOrder);
|
|
beforeVisitCmdScissor->func = AX_CALLBACK_0(ClippingRectangleNode::onBeforeVisitScissor, this);
|
|
renderer->addCommand(beforeVisitCmdScissor);
|
|
|
|
Node::visit(renderer, parentTransform, parentFlags);
|
|
|
|
auto afterVisitCmdScissor = renderer->nextCallbackCommand();
|
|
afterVisitCmdScissor->init(_globalZOrder);
|
|
afterVisitCmdScissor->func = AX_CALLBACK_0(ClippingRectangleNode::onAfterVisitScissor, this);
|
|
renderer->addCommand(afterVisitCmdScissor);
|
|
}
|
|
|
|
}
|