#include "Gdi.h"
#include "Server.h"
#include <windows.h>

// 添加一個(gè)元素到GDI鏈表
struct GdiList *Add_Gdi(struct GdiList *pNode,struct GdiDS Gdi)
{
	// 添加到鏈表的末尾
	if (pNode->pNext = (struct GdiList *)malloc(sizeof(struct GdiList)))
	{
		pNode = pNode->pNext;

		// 添加網(wǎng)格坐標(biāo)
		pNode->Gdi.iGridX = Gdi.iGridX;
		pNode->Gdi.iGridY = Gdi.iGridY;

		// 設(shè)置區(qū)域的矩形坐標(biāo)
		pNode->Gdi.iWidth1 = Gdi.iWidth1;
		pNode->Gdi.iWidth2 = Gdi.iWidth2;
		pNode->Gdi.iHeight1 = Gdi.iHeight1;
		pNode->Gdi.iHeight2 = Gdi.iHeight2;

		// 設(shè)置DIB顏色表的顏色數(shù)
		pNode->Gdi.nColors = Gdi.nColors;

		// 設(shè)置DIB信息頭的字節(jié)數(shù)
		pNode->Gdi.dwBitMapHeader = Gdi.dwBitMapHeader;

		// 設(shè)置位圖長(zhǎng)度和起始坐標(biāo)
		pNode->Gdi.dwLen = Gdi.dwLen;
		pNode->Gdi.dwCompress = Gdi.dwCompress;
		pNode->Gdi.iStartPos = Gdi.iStartPos;

		//設(shè)置DIB
		pNode->Gdi.DIBitmap = Gdi.DIBitmap;

		// 設(shè)置DIB信息頭
		pNode->Gdi.BMIH = Gdi.BMIH;

		// 設(shè)置DIB信息頭的指針
		pNode->Gdi.lpBMIH = Gdi.lpBMIH;

		// 設(shè)置區(qū)域的裝置設(shè)備句柄
		pNode->Gdi.hMemDC = Gdi.hMemDC;

		// 設(shè)置區(qū)域的位圖句柄
		pNode->Gdi.hDIBitmap = Gdi.hDIBitmap;

		// 區(qū)域無(wú)壓縮DIB的指針
		pNode->Gdi.pDIB = Gdi.pDIB;

		//設(shè)置指向區(qū)域DIB變化的部分的指針
		pNode->Gdi.pDIBChange = Gdi.pDIBChange;

		//設(shè)置指向壓縮區(qū)域的DIB的指針
		pNode->Gdi.pDIBCompress = Gdi.pDIBCompress;

		//設(shè)置指向全局區(qū)域位圖指針
		pNode->Gdi.pDIBitmap = Gdi.pDIBitmap;

		// 區(qū)域位圖標(biāo)志
		pNode->Gdi.fDIBitmap = Gdi.fDIBitmap;
		pNode->Gdi.fChange = Gdi.fChange;

		pNode->pNext = NULL;
		return pNode;
	}
	return NULL;
}

// 完全清楚GDI鏈表
void Clear_Gdi(struct GdiList *pStart)
{
	struct	GdiList	*pPrev;
	struct	GdiList	*pNode;
	while (pNode = pStart->pNext)
	{
		pPrev = pStart;
		pPrev->pNext = pNode->pNext;
		DeleteDC(pNode->Gdi.hMemDC);
		DeleteObject(pNode->Gdi.hDIBitmap);
		if (pNode->Gdi.fDIBitmap)
		{
			free(pNode->Gdi.pDIBitmap);
			free(pNode->Gdi.pDIB);
			free(pNode->Gdi.pDIBChangeStart);
		}
		free(pNode);
	}
}