#include "stdafx.h"
#include "SigmaView.h"
#include "SectionDoc.h"
#include "ItemCurveEdit.h"

extern "C" __declspec(dllexport)
void ViewMouseDown(CSigmaView* pView, int mouseX, int mouseY)
{
	CPoint pt;
	pt.x = mouseX;
	pt.y = mouseY;
	pView->ViewMouseDown(0, pt);
}

extern "C" __declspec(dllexport)
void ViewMouseMove(CSigmaView* pView, HDC hdcMem, int mouseX, int mouseY)
{
	//CDC *pDC = new CDC;
	//CDC *pDC = CDC::FromHandle(hdcMem);
	//pDC->Attach(hdcMem);
	//pView->SetDc(pDC);
	//CDC *pDC = CDC::FromHandle(hdcMem);
	//pView->SetDrawDC(pDC);

	CPoint pt;
	pt.x = mouseX;
	pt.y = mouseY;
	pView->ViewMouseMove(0, pt);

	//CDC::FromHandle(hdcMem)->DeleteDC();
}

//extern "C" __declspec(dllexport)
//void CanvasMouseMove(CSigmaView* pView, HDC hdc, int mouseX, int mouseY)
//{
//	if (pView == NULL)
//		return;
//
//	CDC *pDC = CDC::FromHandle(hdc);
//	//pView->SetScreenDC(pDC);
//
//	CPoint pt;
//	pt.x = mouseX;
//	pt.y = mouseY;
//
//	//pView->DrawCrossLine(pDC, pt);
//	pView->UpdateCrossLine(pDC, pt);
//}
//
//extern "C" __declspec(dllexport)
//void CanvasDrawCrossLine(CSigmaView* pView, HDC hdc, int mouseX, int mouseY)
//{
//	if (pView == NULL)
//		return;
//
//	CDC *pDC = CDC::FromHandle(hdc);
//	//pView->SetScreenDC(pDC);
//
//	CPoint pt;
//	pt.x = mouseX;
//	pt.y = mouseY;
//
//	pView->DrawCrossLine(pDC, pt);
//}

extern "C" __declspec(dllexport)
void TestMouseMove(CSigmaView* pView, HDC hdcMem, int mouseX, int mouseY)
{
	for (int i = 0; i < 1000; i++)
	{
		POINT ptOld;
		::MoveToEx(hdcMem, mouseX + i, mouseY, &ptOld);
		::LineTo(hdcMem, mouseX + i + 200, mouseY + 200);
	}
	/*
	if (pView == NULL)
		return;

	CPoint pt;
	pt.x = mouseX;
	pt.y = mouseY;

	CItem * pItem = pView->GetItem();
	if (pItem)
	{
		pItem->SetHDC(hdcMem);
		pItem->OnMouseMove(0, pt, NULL);
	}
	*/
}
extern "C" __declspec(dllexport)
void ViewMouseUp(CSigmaView* pView, int mouseX, int mouseY)
{
   	CPoint pt;
	pt.x = mouseX;
	pt.y = mouseY;
	pView->ViewMouseUp(0, pt);
}

extern "C" __declspec(dllexport)
void OnLButtonDown(CSigmaView* pView, int mouseX, int mouseY, HDC hdc, int vk)
{
	if (pView == NULL)
		return;
	CItem * pItem = pView->GetItem();
	if (pItem == NULL)
		return;

	pItem->m_client = pView->m_client;
	CPoint pt;
	pt.x = mouseX;
	pt.y = mouseY;

	if (pView->HasEnableBKGrid())
		pt = pView->GetGridPoint(pt);

	if (hdc != nullptr)
	{
		CDC *pDC = CDC::FromHandle(hdc);
		pItem->SetScreenDC(pDC);
		pItem->SetBackGroundDC(pView->m_pImgDC);
		pItem->OnLButtonDown(pDC, 0, pt, vk);
	}
	else {
		pItem->OnLButtonDown(nullptr, 0, pt, vk);
	}
}

//返回值:-1 出错 0 正在执行命名 1 未选中元素 2 选中了曲线
extern "C" __declspec(dllexport)
int OnLButtonDoubleClick(CSigmaView* pView, int mouseX, int mouseY) //, HDC hdc)
{
	if (pView == 0)
		return -1;
	if (pView->m_pDoc == 0)
		return -1;

	CPoint point(mouseX, mouseY);

	if (pView->HasEnableBKGrid())
		point = pView->GetGridPoint(point);

	CSigmaDoc* pDoc = pView->m_pDoc;
	if (pDoc->GetItem())
	{
		pDoc->GetItem()->OnLButtonDblClk(0, point);
		return 0;
	}
	else
	{
		CPoint2D pt = pDoc->GetDC().GetReal(point);
		POSITION p = pDoc->GetSelectedItem(pt);
		if (!p)
			return 1;

		int type = pDoc->GetDraw()->GetElementType(p);
		if (type == DOUBLEFOX_CURVE)
		{
			pDoc->ClearSelectionSet();
			pDoc->AddToSelectionSet(p);
			return 2;
		}
		
		return  -1;
	}

	return -1;
}

extern "C" __declspec(dllexport)
void OnLButtonUp(CSigmaView* pView, int mouseX, int mouseY, HDC hdc, int vk)
{
	if (pView == NULL)
		return;

	CItem * pItem = pView->GetItem();
	if (pItem == NULL)
		return;
	CPoint pt;
	pt.x = mouseX;
	pt.y = mouseY;

	if (pView->HasEnableBKGrid())
		pt = pView->GetGridPoint(pt);
	if (hdc != NULL)
	{
		CDC *pDC = CDC::FromHandle(hdc);
		//pView->SetScreenDC(pDC);
		pItem->SetScreenDC(pDC);
		pItem->SetBackGroundDC(pView->m_pImgDC);
		pItem->OnLButtonUp(pDC, 0, pt, vk);
	}
	else {
		pItem->OnLButtonUp(nullptr, 0, pt, vk);
	}
}

extern "C" __declspec(dllexport)
void OnRButtonDown(CSigmaView* pView, int mouseX, int mouseY, HDC hdc, int vk)
{
	if (pView == NULL)
		return;

	CItem * pItem = pView->GetItem();
	if (pItem == NULL)
		return;

	pItem->m_client = pView->m_client;
	CPoint pt;
	pt.x = mouseX;
	pt.y = mouseY;

	if (pView->HasEnableBKGrid())
		pt = pView->GetGridPoint(pt);

	if (hdc != nullptr)
	{
		CDC *pDC = CDC::FromHandle(hdc);
		pItem->SetScreenDC(pDC);
		pItem->SetBackGroundDC(pView->m_pImgDC);
		pItem->OnRButtonDown(0, pt);
	}
	else
	{
		pItem->OnRButtonDown(0, pt);
	}
}

extern "C" __declspec(dllexport)
void OnRButtonUp(CSigmaView* pView, int mouseX, int mouseY, HDC hdc, int vk)
{
	if (pView == NULL)
		return;

	pView->SetLastRightButtonPoint({ mouseX, mouseY });

	CItem * pItem = pView->GetItem();
	if (pItem == NULL)
		return;

	CPoint pt;
	pt.x = mouseX;
	pt.y = mouseY;

	if (pView->HasEnableBKGrid())
		pt = pView->GetGridPoint(pt);
	if (hdc != NULL)
	{
		CDC *pDC = CDC::FromHandle(hdc);
		pItem->SetScreenDC(pDC);
		pItem->SetBackGroundDC(pView->m_pImgDC);
		pItem->OnRButtonUp(0, pt);
	}
	else
	{
		pItem->OnRButtonUp(0, pt);
	}
}

extern "C" __declspec(dllexport)
void OnMouseWheel(CSigmaView* pView, uint32_t button, int32_t clicks, int32_t x, int32_t y, int32_t delta)
{
	if (pView == NULL)
		return;

	CItem * pItem = pView->GetItem();
	if (pItem == NULL)
		return;

	pItem->OnMouseWheel(button, clicks, x, y, delta);
}

extern "C" __declspec(dllexport)
bool OnKeyDown(CSigmaView* pView, int keyValue, HDC hdc) //C#传入的keyValue 刚好等与VK_XXX 无需转换了 
{
	if (pView == NULL)
		return false;

	CItem * pItem = pView->GetItem();
	if (pItem == NULL)
		return false;

	CDC *pDC = CDC::FromHandle(hdc);
	pView->SetScreenDC(pDC);
	pItem->SetScreenDC(pDC);
	pItem->SetBackGroundDC(pView->m_pImgDC);

	return pItem->OnKeyDown(keyValue, 0, 0);
}

extern "C" __declspec(dllexport)
int OnKeyUp(CSigmaView* pView, int keyValue, HDC hdc) //C#传入的keyValue 刚好等与VK_XXX 无需转换了 
{
	if (pView == NULL)
		return -1;

	CItem * pItem = pView->GetItem();
	if (pItem == NULL)
		return -1;

	CDC *pDC = CDC::FromHandle(hdc);
	pView->SetScreenDC(pDC);

	pItem->SetScreenDC(pDC);
	pItem->SetBackGroundDC(pView->m_pImgDC);

	BOOL b = pItem->OnKeyUp(keyValue, 0, 0);
	if (b == TRUE)
		return 1;

	return 0;
}

//buttonStatus的第一位是鼠标左键的状态 第二位是中键的状态 第三位右键状态
extern "C" __declspec(dllexport)
int ItemMouseMove(CSigmaView* pView, HDC hMemDC, int mouseX, int mouseY, int buttonStatus)
{
	if (pView == NULL)
		return 0;

	CDC *pDC = CDC::FromHandle(hMemDC);
	pView->SetScreenDC(pDC);

	CPoint pt;
	pt.x = mouseX;
	pt.y = mouseY;

	if (pView->HasEnableBKGrid())
		pt = pView->GetGridPoint(pt);

	//pView->DrawCrossLine(pDC, pt);

	CItem * pItem = pView->GetItem();
	if (pItem) {
		pItem->SetScreenDC(pDC);
		return pItem->OnMouseMove(pDC, buttonStatus, pt);
	}
	//CDC::FromHandle(hMemDC)->DeleteDC();
	return 1;
}

extern "C" __declspec(dllexport)
void ItemMouseMoveStatus(CSigmaView* pView, HDC hMemDC, int mouseX, int mouseY, int buttonStatus, BYTE*& destBuffer, int& destLen)
{
	if (pView == NULL)
		return;

	CDC *pDC = CDC::FromHandle(hMemDC);
	pView->SetScreenDC(pDC);

	CPoint pt;
	pt.x = mouseX;
	pt.y = mouseY;

	if (pView->HasEnableBKGrid())
		pt = pView->GetGridPoint(pt);

	//pView->DrawCrossLine(pDC, pt);

	CItem * pItem = pView->GetItem();
	if (pItem) {
		pItem->SetScreenDC(pDC);
		pItem->OnMouseMoveStatus(pDC, buttonStatus, pt, destBuffer, destLen);
	}
	//CDC::FromHandle(hMemDC)->DeleteDC();
}