mirror of https://github.com/axmolengine/axmol.git
109 lines
3.7 KiB
C++
109 lines
3.7 KiB
C++
/****************************************************************************
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Copyright (c) 2017-2018 Xiamen Yaji Software Co., Ltd.
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https://axys1.github.io/
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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THE SOFTWARE.
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****************************************************************************/
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#include "2d/CCClippingRectangleNode.h"
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#include "base/CCDirector.h"
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#include "renderer/CCRenderer.h"
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#include "math/Vec2.h"
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#include "platform/CCGLView.h"
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NS_AX_BEGIN
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ClippingRectangleNode* ClippingRectangleNode::create(const Rect& clippingRegion)
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{
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ClippingRectangleNode* node = new ClippingRectangleNode();
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if (node->init())
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{
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node->setClippingRegion(clippingRegion);
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node->autorelease();
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}
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else
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AX_SAFE_DELETE(node);
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return node;
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}
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ClippingRectangleNode* ClippingRectangleNode::create()
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{
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ClippingRectangleNode* node = new ClippingRectangleNode();
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if (node->init())
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node->autorelease();
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else
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AX_SAFE_DELETE(node);
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return node;
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}
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void ClippingRectangleNode::setClippingRegion(const Rect& clippingRegion)
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{
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_clippingRegion = clippingRegion;
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}
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void ClippingRectangleNode::onBeforeVisitScissor()
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{
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if (_clippingEnabled)
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{
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auto renderer = _director->getRenderer();
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_oldScissorTest = renderer->getScissorTest();
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renderer->setScissorTest(true);
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float scaleX = _scaleX;
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float scaleY = _scaleY;
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Node* parent = this->getParent();
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while (parent)
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{
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scaleX *= parent->getScaleX();
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scaleY *= parent->getScaleY();
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parent = parent->getParent();
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}
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const Point pos = convertToWorldSpace(Point(_clippingRegion.origin.x, _clippingRegion.origin.y));
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GLView* glView = _director->getOpenGLView();
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glView->setScissorInPoints(pos.x, pos.y, _clippingRegion.size.width * scaleX,
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_clippingRegion.size.height * scaleY);
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}
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}
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void ClippingRectangleNode::onAfterVisitScissor()
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{
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if (_clippingEnabled)
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_director->getRenderer()->setScissorTest(_oldScissorTest);
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}
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void ClippingRectangleNode::visit(Renderer* renderer, const Mat4& parentTransform, uint32_t parentFlags)
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{
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auto beforeVisitCmdScissor = renderer->nextCallbackCommand();
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beforeVisitCmdScissor->init(_globalZOrder);
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beforeVisitCmdScissor->func = AX_CALLBACK_0(ClippingRectangleNode::onBeforeVisitScissor, this);
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renderer->addCommand(beforeVisitCmdScissor);
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Node::visit(renderer, parentTransform, parentFlags);
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auto afterVisitCmdScissor = renderer->nextCallbackCommand();
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afterVisitCmdScissor->init(_globalZOrder);
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afterVisitCmdScissor->func = AX_CALLBACK_0(ClippingRectangleNode::onAfterVisitScissor, this);
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renderer->addCommand(afterVisitCmdScissor);
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}
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NS_AX_END
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