/*该文件是用作互操作的调用文件,用作其他语言(如C#)调用该模块的触摸相关功能*/
#include "pch.h"
#include <windows.h>
#include <assert.h>
#define ASSERT assert

#include <stdio.h>
#include <io.h>
#include <fcntl.h>

#include "ManipulationEventSink.h"
#include "ManipulationHelper.h"

namespace ManipulationHelper
{
	/// <summary>
	/// 注册一个窗口(控件)具有触摸功能
	/// <param name="formHandle">窗口(控件)的句柄</param>
	/// <param name="msCallback">操作开始的回调函数</param>
	/// <param name="mdCallback">操作过程变化的回调函数</param>
	/// <param name="mcCallback">操作结束的回调函数</param>
	/// <return>操作帮助器</return>
	/// </summary>
	extern "C" __declspec(dllexport) ManipulationHelper* RegisterWnd(
		HWND formHandle,
		ManipulationStartedCallBack msCallback,
		ManipulationDeltaCallBack mdCallback,
		ManipulationCompletedCallBack mcCallback)
	{
		//初始化一个ManipulationHelper,并放回该实例

		ManipulationHelper* helper = new ManipulationHelper(formHandle);
		if (helper->InitOkFlag)
		{
			helper->SetManipulationStartedCallBack(msCallback);
			helper->SetManipulationDeltaCallBack(mdCallback);
			helper->SetManipulationCompletedCallBack(mcCallback);
			return helper;
		}
		else
		{
			delete helper;
			return NULL;
		}
	}

	/// <summary>
	/// 把TouchDown类型的触摸消息拿到ManipulationHelper里的IManipulationProcessor处理
	/// <param name="helper">触摸功能帮助器</param>
	/// <param name="manipulatorId">Touch消息对应的操作ID</param>
	/// <param name="x">Touch消息触点的X坐标(屏幕坐标系)</param>
	/// <param name="y">触摸功能帮助器</param>
	/// </summary>
	extern "C" __declspec(dllexport) void ProcessDown(
		ManipulationHelper * helper
		, MANIPULATOR_ID manipulatorId
		, FLOAT x
		, FLOAT y)
	{
		helper->ProcessDown(manipulatorId, x, y);
	}

	// 把TouchMove类型的触摸消息拿到ManipulationHelper里的IManipulationProcessor处理
	extern "C" __declspec(dllexport) void ProcessMove(
		ManipulationHelper * helper
		, MANIPULATOR_ID manipulatorId
		, FLOAT x
		, FLOAT y)
	{
		helper->ProcessMove(manipulatorId, x, y);
	}

	// 把TouchUp类型的触摸消息拿到ManipulationHelper里的IManipulationProcessor处理
	extern "C" __declspec(dllexport) void ProcessUp(
		ManipulationHelper * helper
		, MANIPULATOR_ID manipulatorId
		, FLOAT x
		, FLOAT y)
	{
		helper->ProcessUp(manipulatorId, x, y);
	}
}