drawcorner.cpp

vc++6.0开发网络典型应用实例导航 1. 本光盘提供了本书中所有的实例源程序文件。 2. 附录文件夹下是Winsock 函数参考以及错误码列表

#include "stdafx.h"
#include "Netmsg.h"

//this file holds DrawCorner() a function to draw 4 shitty corners of varying colors and blending
//i bloody hate the way so much code is needed to do the most simple graphical thing

#define R(cr)           ((BYTE)(cr & 0xFF))
#define G(cr)           ((BYTE)(cr >> 8))
#define B(cr)           ((BYTE)(cr >> 16))

void DrawDot(CDC *pDC, int x, int y, COLORREF crCol);

void DrawCorner(CDC *pDC, int x, int y, COLORREF crCol, int nCorner, bool bMessage, COLORREF crMessageColor)
{
	int r, g, b;
	int rs1, gs1, bs1;
	int rs2, gs2, bs2;
	int rs3, gs3, bs3;
	int rmax, gmax, bmax;

	COLORREF crStage1;
	COLORREF crStage2;
	COLORREF crStage3;

	r = R(crCol);
	g = G(crCol);
	b = B(crCol);

	rmax = bMessage ? R(crMessageColor) : 255;
	gmax = bMessage ? G(crMessageColor) : 255;
	bmax = bMessage ? B(crMessageColor) : 255;

	if (rmax > r)
	{
		rs1 = r + (rmax - r) / 4;
		rs2 = r + ((rmax - r) / 4) * 2;
		rs3 = r + ((rmax - r) / 4) * 3;
	}
	else
	{
		rs1 = r - (r - rmax) / 4;
		rs2 = r - ((r - rmax) / 4) * 2;
		rs3 = r - ((r - rmax) / 4) * 3;
	}

	if (gmax > g)
	{
		gs1 = g + (gmax - g) / 4;
		gs2 = g + ((gmax - g) / 4) * 2;
		gs3 = g + ((gmax - g) / 4) * 3;
	}
	else
	{
		gs1 = g - (g - gmax) / 4;
		gs2 = g - ((g - gmax) / 4) * 2;
		gs3 = g - ((g - gmax) / 4) * 3;
	}

	if (bmax > b)
	{
		bs1 = b + (bmax - b) / 4;
		bs2 = b + ((bmax - b) / 4) * 2;
		bs3 = b + ((bmax - b) / 4) * 3;
	}
	else
	{
		bs1 = b - (b - bmax) / 4;
		bs2 = b - ((b - bmax) / 4) * 2;
		bs3 = b - ((b - bmax) / 4) * 3;
	}

	crStage1 = RGB(rs1, gs1, bs1);
	crStage2 = RGB(rs2, gs2, bs2);
	crStage3 = RGB(rs3, gs3, bs3);

	switch (nCorner)
	{
	case 1:
		pDC->FillSolidRect(x, y, 4, 10, crCol);
		pDC->FillSolidRect(x + 4, y, 5, 4, crCol);
		DrawDot(pDC, x + 4, y + 4, crCol);
		DrawDot(pDC, x + 4, y + 5, crCol);
		DrawDot(pDC, x + 5, y + 4, crCol);
		DrawDot(pDC, x + 6, y + 4, crStage1);
		DrawDot(pDC, x + 4, y + 6, crStage1);
		DrawDot(pDC, x + 5, y + 5, crStage2);
		DrawDot(pDC, x + 7, y + 4, crStage2);
		DrawDot(pDC, x + 4, y + 7, crStage2);
		DrawDot(pDC, x + 8, y + 4, crStage3);
		DrawDot(pDC, x + 4, y + 8, crStage3);

		if (bMessage)
		{
			DrawDot(pDC, x + 4, y + 9, crMessageColor);
			DrawDot(pDC, x + 9, y + 4, crMessageColor);
			pDC->FillSolidRect(x + 5, y + 6, 5, 4, crMessageColor);
			pDC->FillSolidRect(x + 6, y + 5, 4, 1, crMessageColor);
		}

		break;
	case 2:
		pDC->FillSolidRect(x, y, 10, 4, crCol);
		pDC->FillSolidRect(x + 6, y + 4, 4, 6, crCol);
		DrawDot(pDC, x + 1, y + 4, crStage3);
		DrawDot(pDC, x + 2, y + 4, crStage2);
		DrawDot(pDC, x + 3, y + 4, crStage1);
		DrawDot(pDC, x + 4, y + 4, crCol);
		DrawDot(pDC, x + 5, y + 4, crCol);
		DrawDot(pDC, x + 4, y + 5, crStage2);
		DrawDot(pDC, x + 5, y + 5, crCol);
		DrawDot(pDC, x + 5, y + 6, crStage1);
		DrawDot(pDC, x + 5, y + 7, crStage2);
		DrawDot(pDC, x + 5, y + 8, crStage3);

		if (bMessage)
		{
			DrawDot(pDC, x, y + 4, crMessageColor);
			DrawDot(pDC, x + 5, y + 9, crMessageColor);
			pDC->FillSolidRect(x, y + 5, 4, 6, crMessageColor);
			pDC->FillSolidRect(x + 4, y + 6, 1, 5, crMessageColor);
		}

		break;
	case 3:
		pDC->FillSolidRect(x, y, 4, 6, crCol);
		pDC->FillSolidRect(x, y + 6, 10, 4, crCol);
		DrawDot(pDC, x + 4, y + 1, crStage3);
		DrawDot(pDC, x + 4, y + 2, crStage2);
		DrawDot(pDC, x + 4, y + 3, crStage1);
		DrawDot(pDC, x + 4, y + 4, crCol);
		DrawDot(pDC, x + 5, y + 4, crStage2);
		DrawDot(pDC, x + 4, y + 5, crCol);
		DrawDot(pDC, x + 5, y + 5, crCol);
		DrawDot(pDC, x + 6, y + 5, crStage1);
		DrawDot(pDC, x + 7, y + 5, crStage2);
		DrawDot(pDC, x + 8, y + 5, crStage3);
		
		if (bMessage)
		{
			DrawDot(pDC, x + 4, y, crMessageColor);
			DrawDot(pDC, x + 9, y + 5, crMessageColor);
			pDC->FillSolidRect(x + 5, y, 5, 4, crMessageColor);
			pDC->FillSolidRect(x + 6, y + 4, 4, 1, crMessageColor);
		}

		break;
	case 4:
		pDC->FillSolidRect(x + 6, y, 4, 10, crCol);
		pDC->FillSolidRect(x, y + 6, 10, 4, crCol);
		DrawDot(pDC, x + 5, y + 1, crStage3);
		DrawDot(pDC, x + 5, y + 2, crStage2);
		DrawDot(pDC, x + 5, y + 3, crStage1);
		DrawDot(pDC, x + 4, y + 4, crStage2);
		DrawDot(pDC, x + 5, y + 4, crCol);
		DrawDot(pDC, x + 1, y + 5, crStage3);
		DrawDot(pDC, x + 2, y + 5, crStage2);
		DrawDot(pDC, x + 3, y + 5, crStage1);
		DrawDot(pDC, x + 4, y + 5, crCol);
		DrawDot(pDC, x + 5, y + 5, crCol);

		if (bMessage)
		{
			DrawDot(pDC, x, y + 5, crMessageColor);
			DrawDot(pDC, x + 5, y, crMessageColor);
			pDC->FillSolidRect(x, y, 4, 5, crMessageColor);
			pDC->FillSolidRect(x + 4, y, 1, 4, crMessageColor);
		}

		break;
	}
}

void DrawBitmap(CDC * pDC, CRect rc, UINT nFlags, CBitmap *pBitmap)
{
	CDC memDC;
	CBitmap* pOld = NULL;
	memDC.CreateCompatibleDC(pDC);
	BITMAP bmpInfo;
	int Width;
	int Height;
	int xSrc = 0;
	int ySrc = 0;
	int xDesired;
	int yDesired;

	ASSERT(pBitmap->m_hObject != NULL);
	pBitmap->GetBitmap(&bmpInfo);
	
	pOld = memDC.SelectObject((CBitmap*) pBitmap);
	if (pOld == NULL) return;
	
	Width = (bmpInfo.bmWidth - rc.Width()) / 2;
	Height = (bmpInfo.bmHeight - rc.Height()) / 2;
	
	if ((nFlags & DB_HCENTER))
	{
		if (Width > 0)
		{
			xDesired = rc.left;
			xSrc = abs(Width);
		}
		else xDesired = rc.left+ abs(Width);
	}
		else xDesired = rc.left;
	
	if ((nFlags & DB_VCENTER))
	{
		if (Height > 0)
		{
			yDesired = rc.top;
			ySrc = abs(Height);
		}
		else yDesired = rc.top + abs(Height);
	} else
		yDesired = rc.top;
	
	pDC->BitBlt(xDesired, yDesired, rc.Width(), rc.Height(), &memDC, xSrc, ySrc, SRCCOPY);
	
	memDC.SelectObject(pOld);	
}

void DrawDot(CDC *pDC, int x, int y, COLORREF crCol)
{
	pDC->FillSolidRect(x, y, 1, 1, crCol);
}

COLORREF GetColor(int nColor)
{
	switch (nColor)
	{
		case COL_DISABLED:
			return GetApp()->crDisabled;
		case COL_LIGHTITEMS:
			return GetApp()->crLightItems;
		case COL_LINEFRAMES:
			return GetApp()->crLineFrames;
		case COL_NOTIFYTEXT:
			return GetApp()->crNotifyText;
		case COL_NORMALTEXT:
			return GetApp()->crNormalText;
		case COL_BTNACTIVE:
			return GetApp()->crBtnActive;
		case COL_BTNOVER:
			return GetApp()->crBtnOver;
		case COL_BTNBACK:
			return GetApp()->crBtnBack;
	}
	return NULL;
}

void SetColor(int nColor, COLORREF crColor)
{
	switch (nColor)
	{
		case COL_DISABLED:
			GetApp()->crDisabled = crColor;
			break;
		case COL_LIGHTITEMS:
			GetApp()->crLightItems = crColor;
			break;
		case COL_LINEFRAMES:
			GetApp()->crLineFrames = crColor;
			break;
		case COL_NOTIFYTEXT:
			GetApp()->crNotifyText = crColor;
			break;
		case COL_NORMALTEXT:
			GetApp()->crNormalText = crColor;
			break;
		case COL_BTNACTIVE:
			GetApp()->crBtnActive = crColor;
			break;
		case COL_BTNOVER:
			GetApp()->crBtnOver = crColor;
			break;
		case COL_BTNBACK:
			GetApp()->crBtnBack = crColor;
			break;
	}
}