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Add some comments for mouse scorlling function

This commit is contained in:
Nite Luo 2013-10-11 16:39:54 -07:00
parent ddf21e8bd1
commit 292d0d74ad
1 changed files with 5 additions and 1 deletions
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6
cocos2dx/platform/mac/CCEGLView.mm
View File

@ -221,6 +221,7 @@ void EGLViewEventHandler::OnGLFWMouseCallBack(GLFWwindow* window, int button, in
if(GLFW_PRESS == action) if(GLFW_PRESS == action)
{ {
EventMouse event(EventMouse::MouseEventType::MOUSE_DOWN); EventMouse event(EventMouse::MouseEventType::MOUSE_DOWN);
//Because OpenGL and cocos2d-x uses different Y axis, we need to convert the coordinate here
event.setCursorPosition(s_mouseX, eglView->getViewPortRect().size.height - s_mouseY); event.setCursorPosition(s_mouseX, eglView->getViewPortRect().size.height - s_mouseY);
event.setMouseButton(button); event.setMouseButton(button);
EventDispatcher::getInstance()->dispatchEvent(&event); EventDispatcher::getInstance()->dispatchEvent(&event);
@ -228,6 +229,7 @@ void EGLViewEventHandler::OnGLFWMouseCallBack(GLFWwindow* window, int button, in
else if(GLFW_RELEASE == action) else if(GLFW_RELEASE == action)
{ {
EventMouse event(EventMouse::MouseEventType::MOUSE_UP); EventMouse event(EventMouse::MouseEventType::MOUSE_UP);
//Because OpenGL and cocos2d-x uses different Y axis, we need to convert the coordinate here
event.setCursorPosition(s_mouseX, eglView->getViewPortRect().size.height - s_mouseY); event.setCursorPosition(s_mouseX, eglView->getViewPortRect().size.height - s_mouseY);
event.setMouseButton(button); event.setMouseButton(button);
EventDispatcher::getInstance()->dispatchEvent(&event); EventDispatcher::getInstance()->dispatchEvent(&event);
@ -254,6 +256,7 @@ void EGLViewEventHandler::OnGLFWMouseMoveCallBack(GLFWwindow* window, double x,
} }
EventMouse event(EventMouse::MouseEventType::MOUSE_MOVE); EventMouse event(EventMouse::MouseEventType::MOUSE_MOVE);
//Because OpenGL and cocos2d-x uses different Y axis, we need to convert the coordinate here
event.setCursorPosition(s_mouseX, eglView->getViewPortRect().size.height - s_mouseY); event.setCursorPosition(s_mouseX, eglView->getViewPortRect().size.height - s_mouseY);
EventDispatcher::getInstance()->dispatchEvent(&event); EventDispatcher::getInstance()->dispatchEvent(&event);
} }
@ -264,7 +267,8 @@ void EGLViewEventHandler::OnGLFWMouseScrollCallback(GLFWwindow* window, double x
if(nullptr == eglView) return; if(nullptr == eglView) return;
EventMouse event(EventMouse::MouseEventType::MOUSE_SCROLL); EventMouse event(EventMouse::MouseEventType::MOUSE_SCROLL);
event.setScrollData((float)x, (float)y); //Because OpenGL and cocos2d-x uses different Y axis, we need to convert the coordinate here
event.setScrollData((float)x, -(float)y);
event.setCursorPosition(s_mouseX, eglView->getViewPortRect().size.height - s_mouseY); event.setCursorPosition(s_mouseX, eglView->getViewPortRect().size.height - s_mouseY);
EventDispatcher::getInstance()->dispatchEvent(&event); EventDispatcher::getInstance()->dispatchEvent(&event);
} }