patterns.cpp

c++的一些源代码

		};

	GetClientRect(hWnd, &rcClient);
	nSide = rcClient.right / 6;
	nXoffset = rcClient.right / 12;
	nYoffset = 10;

	lb.lbStyle = BS_HATCHED;
	lb.lbColor = RGB(0x0, 0x0, 0x0);

	rc[0].left = nXoffset;
	rc[0].right = rc[0].left + nSide;
	rc[0].top = nYoffset;
	rc[0].bottom = rc[0].top + nSide;

	rc[1].left = rc[0].left + rcClient.right / 3;
	rc[1].right = rc[1].left + nSide;
	rc[1].top = nYoffset;
	rc[1].bottom = rc[1].top + nSide;

	rc[2].left = rc[1].left + rcClient.right / 3;
	rc[2].right = rc[2].left + nSide;
	rc[2].top = nYoffset;
	rc[2].bottom = rc[2].top + nSide;

	rc[3].left = nXoffset;
	rc[3].right = rc[3].left + nSide;
	rc[3].top = nYoffset + rcClient.bottom / 2;
	rc[3].bottom = rc[3].top + nSide;

	rc[4].left = rc[3].left + rcClient.right / 3;
	rc[4].right = rc[4].left + nSide;
	rc[4].top = rc[3].top;
	rc[4].bottom = rc[4].top + nSide;

	rc[5].left = rc[1].left + rcClient.right / 3;
	rc[5].right = rc[2].left + nSide;
	rc[5].top = rc[3].top;
	rc[5].bottom = rc[5].top + nSide;

	CreateLogFont (hdc, lf);
	HFONT hFont = CreateFontIndirect(&lf);
	HPEN hPen = CreatePen (PS_SOLID, 1, RGB(0x0, 0x0, 0x0));
	SelectObject (hdc, hPen);
	SelectObject (hdc, hFont);
	for (int i = 0; i < 6; ++i)
	{
	RECT rcText;

		DrawShadow (hdc, rc[i]);
		Rectangle (hdc, rc[i].left - 1,
						rc[i].top - 1,
						rc[i].right + 1,
						rc[i].bottom + 1);
		lb.lbHatch = lHatch[i];
		HBRUSH hBrush = CreateBrushIndirect (&lb);
		POINT point;
		point.x = rc[i].left;
		point.y = rc[i].top;
		DPtoLP (hdc, &point, 1);
		point.x %= 8;
		point.y %= 8;
		UnrealizeObject (hBrush);
		SetBrushOrgEx (hdc, point.x, point.y, NULL);
		SelectObject (hdc, hBrush);
		FillRect (hdc, &rc[i], hBrush);
		DeleteObject (hBrush);
		rcText.left = rc[i].left - 10;
		rcText.right = rc[i].right + 10;
		rcText.top = rc[i].bottom + 6;
		rcText.bottom = rcText.top + lf.lfHeight;
		DrawText (hdc, szLabels[i], strlen (szLabels[i]),
				  &rcText, TEXT_FORMAT);
	}
	DeleteObject (hPen);
}

void DrawShadow (HDC hdc, RECT& rc)
{
RECT r = rc;

	r.top += 4;
	r.left += 4;
	r.bottom += 4;
	r.right += 4;
	HBRUSH hBrush = CreateSolidBrush (RGB(0x77, 0x77, 0x77));
	FillRect (hdc, &r, hBrush);
	DeleteObject (hBrush);
}

void CreateLogFont (HDC hdc, LOGFONT & lf, int nPoints, char *szFace)
{
	memset (&lf, '\0', sizeof (LOGFONT));
	lf.lfCharSet = DEFAULT_CHARSET;
	lf.lfClipPrecision = OUT_TT_PRECIS;
	lf.lfQuality = DEFAULT_QUALITY;
	lf.lfPitchAndFamily = DEFAULT_PITCH | FF_ROMAN;
	lf.lfHeight = MulDiv(nPoints, GetDeviceCaps(hdc, LOGPIXELSY), 72);
	strcpy (lf.lfFaceName, szFace);
}

char	*szBenDayText = "   It was a rimy morning, and very damp. " \
		"I had seen the damp lying on the outside of my little window, "\
		"as if some goblin had been crying there all night, and "\
		"using the window for a pocket-handkerchief. "\
		"Now, I saw the damp lying on the bare hedges and spare grass, "\
		"like a coarser sort of spiders' webs; hanging itself "\
		"from twig to twig and blade to blade. On every rail and gate, "\
		"wet lay clammy; and the marsh-mist was so thick, that the "\
		"wooden finger on the post directing people to our village "\
		"- a direction which they never accepted, for they never came "\
		"there - was invisible to me until I was quite close under it. "\
		"Then, as I looked up at it, while it dripped, it seemed to my "\
		"oppressed conscience like a phantom devoting me to the Hulks.";

BOOL DrawBenDay (HWND hWnd, HDC hdc)
{
RECT	rcClient, rcBenDay, rcText, rcShadow;
LOGFONT		lf;
HFONT		hFont;

	CreateLogFont (hdc, lf, 12);
	hFont = CreateFontIndirect(&lf);
	SelectObject (hdc, hFont);
	GetClientRect (hWnd, &rcClient);

	rcText = rcClient;
	rcText.top += 26;
	rcText.bottom -= 26;
	rcText.left = rcClient.right / 4 + 6;
	rcText.right = 3 * rcClient.right / 4 - 6;

	do
	{
		rcText.left -= 5;
		if (rcText.left < 0)
		{
			MessageBox (hWnd, "Main window is too small", "BenDay", MB_OK);
			return (FALSE);
		}
		rcText.right = rcClient.right - rcText.left - 6;
		DrawText (hdc, szBenDayText, strlen (szBenDayText),
				  &rcText, DT_EDITCONTROL | DT_WORDBREAK | DT_CALCRECT);
	} while ((rcText.bottom + 12) > rcClient.bottom);

	rcBenDay = rcText;
	rcBenDay.top -= 6;
	rcBenDay.bottom += 6;
	rcBenDay.left -= 6;
	rcBenDay.right += 6;

	rcShadow = rcBenDay;
	rcShadow.top += 4;
	rcShadow.bottom += 4;
	rcShadow.left += 4;
	rcShadow.right += 4;

	HBRUSH hBrush = CreateSolidBrush (RGB(0x57, 0x57, 0x57));
	FillRect (hdc, &rcShadow, hBrush);
	DeleteObject (hBrush);
	Rectangle (hdc, rcBenDay.left - 1,
					rcBenDay.top - 1,
					rcBenDay.right + 1,
					rcBenDay.bottom + 1);

	hBrush = CreateSolidBrush (RGB(0xcf, 0xcf, 0xcf));
	FillRect (hdc, &rcBenDay, hBrush);
	DeleteObject (hBrush);

//	CreateLogFont (hdc, lf, 14);

	SetBkMode (hdc, TRANSPARENT);
	DrawText (hdc, szBenDayText, strlen (szBenDayText),
			  &rcText, DT_EDITCONTROL | DT_WORDBREAK);
	return (TRUE);
}

void DrawJoins (HWND hWnd, HDC hdc)
{
RECT	rc[3];
RECT	rcClient;
int		nXoffset, nYoffset;
LOGBRUSH	lb;
LOGFONT		lf;
HPEN		hPen;
HFONT		hFont;
DWORD	dwJoin[] = {PS_JOIN_BEVEL, PS_JOIN_MITER, PS_JOIN_ROUND};
char	*szLabels[] =
		{
		"PS_JOIN_BEVEL",
		"PS_JOIN_MITER",
		"PS_JOIN_ROUND"
		};

	CreateLogFont (hdc, lf, 14);
	hFont = CreateFontIndirect(&lf);
	GetClientRect (hWnd, &rcClient);

	nXoffset = 12;
	nYoffset = 12;

	rc[0].top = rcClient.top + nYoffset;
	rc[0].bottom = (rcClient.bottom - 2 * nYoffset) / 3;
	rc[0].left = rcClient.left + nXoffset;
	rc[0].right = rcClient.right - nXoffset;

	rc[1].top = rc[0].bottom + nYoffset;
	rc[1].bottom = rc[1].top + rc[0].bottom - rc[0].top;
	rc[1].left = rc[0].left;
	rc[1].right = rc[0].right;

	rc[2].top = rc[1].bottom + nYoffset;
	rc[2].bottom = rc[2].top + rc[1].bottom - rc[1].top;
	rc[2].left = rc[1].left;
	rc[2].right = rc[1].right;

//	int nStep = (rc[0].right - rc[0].left) / (2 * 3);
//	int nStart = (rc[0].right - rc[0].left) / 6 + nXoffset;
	int nStart = (rc[0].right - rc[0].left) / 6 + 4 * nXoffset;
	int nStep = (rc[0].right - nStart) / 5;

//
//	Uncomment the following lines to produce a lightly shaded
//	backbround for aligning the image.
//	HBRUSH hBrush = CreateSolidBrush (RGB(0xf7, 0xf7, 0xf7));
//	FillRect (hdc, &rc[0], hBrush);
//	FillRect (hdc, &rc[1], hBrush);
//	FillRect (hdc, &rc[2], hBrush);
//	DeleteObject (hBrush);

	lb.lbColor = (RGB(0x00, 0x00, 0x00));
	lb.lbStyle = BS_SOLID;
	lb.lbHatch = 0;

	RECT rcText;
	rcText.left = rc[0].left + 6;
	rcText.right = rc[0].right;
	int nTypeHigh = lf.lfHeight < 0 ? lf.lfHeight : -lf.lfHeight;

	SetBkMode (hdc, TRANSPARENT);

	for (int i = 0; i < 3; ++i)
	{
		hPen = ExtCreatePen (PS_GEOMETRIC | PS_ENDCAP_FLAT | dwJoin[i] | PS_SOLID, 10,
						  &lb, 0, NULL);
		SelectObject (hdc, hPen);
		BeginPath (hdc);
		MoveToEx (hdc, nStart, rc[i].bottom - 5, NULL);
		for (int j = 0; j < 5; ++j)
		{
			LineTo (hdc, nStart + nStep * (j + 1) - 5,
					j % 2 ? rc[i].bottom - 5 : rc[i].top + 5);
		}
//		CloseFigure (hdc);
		EndPath (hdc);
		StrokePath (hdc);
		SelectObject (hdc, hFont);
		DeleteObject (hPen);
		rcText.top = rc[i].top + (rc[i].bottom - rc[i].top + nTypeHigh) / 2;
		rcText.bottom = rcText.top  + nTypeHigh;
		DrawText (hdc, szLabels[i], strlen (szLabels[i]),
				  &rcText, TEXT_FORMAT & ~DT_CENTER);
	}
	DeleteObject (hFont);
}

void DrawEndCaps (HWND hWnd, HDC hdc)
{
RECT	rc[3];
RECT	rcClient;
int		nXoffset, nYoffset;
LOGBRUSH	lb;
LOGFONT		lf;
HPEN		hPen;
HFONT		hFont;
DWORD	lEndCap[] = {PS_ENDCAP_ROUND, PS_ENDCAP_SQUARE, PS_ENDCAP_FLAT};
char	*szLabels[] =
		{
		"PS_ENDCAP_ROUND",
		"PS_ENDCAP_SQUARE",
		"PS_ENDCAP_FLAT"
		};

	CreateLogFont (hdc, lf, 14);
	hFont = CreateFontIndirect(&lf);
	SelectObject (hdc, hFont);
	GetClientRect (hWnd, &rcClient);

	nXoffset = 12;
	nYoffset = 12;

	rc[0].top = rcClient.top + nYoffset;
	rc[0].bottom = (rcClient.bottom - 2 * nYoffset) / 3;
	rc[0].left = rcClient.left + nXoffset;
	rc[0].right = rcClient.right - nXoffset;

	rc[1].top = rc[0].bottom + nYoffset;
	rc[1].bottom = rc[1].top + rc[0].bottom - rc[0].top;
	rc[1].left = rc[0].left;
	rc[1].right = rc[0].right;

	rc[2].top = rc[1].bottom + nYoffset;
	rc[2].bottom = rc[2].top + rc[1].bottom - rc[1].top;
	rc[2].left = rc[1].left;
	rc[2].right = rc[1].right;

	int nStart = (rc[0].right - rc[0].left) / 6 + 4 * nXoffset;
	int nStep = (rc[0].right - nStart) / 5;
//
//	Uncomment the following lines to produce a lightly shaded
//	backbround for aligning the image.
//	HBRUSH hBrush = CreateSolidBrush (RGB(0xf7, 0xf7, 0xf7));
//	FillRect (hdc, &rc[0], hBrush);
//	FillRect (hdc, &rc[1], hBrush);
//	FillRect (hdc, &rc[2], hBrush);
//	DeleteObject (hBrush);

	lb.lbColor = (RGB(0x00, 0x00, 0x00));
	lb.lbStyle = BS_SOLID;
	lb.lbHatch = 0;

	RECT rcText;
	rcText.left = rc[0].left + 6;
	rcText.right = rc[0].right;
	int nTypeHigh = lf.lfHeight < 0 ? lf.lfHeight : -lf.lfHeight;

	SetBkMode (hdc, TRANSPARENT);

	for (int i = 0; i < 3; ++i)
	{
		hPen = ExtCreatePen (PS_GEOMETRIC | lEndCap[i] | PS_SOLID, 10,
						  &lb, 0, NULL);
		SelectObject (hdc, hPen);
		MoveToEx (hdc, nStart, rc[i].bottom - 5, NULL);
		for (int j = 0; j < 5; ++j)
		{
			LineTo (hdc, nStart + nStep * (j + 1),
					j % 2 ? rc[i].bottom - 5 : rc[i].top + 5);
		}
		DeleteObject (hPen);
		rcText.top = rc[i].top + (rc[i].bottom - rc[i].top + nTypeHigh) / 2;
		rcText.bottom = rcText.top  + nTypeHigh;
		DrawText (hdc, szLabels[i], strlen (szLabels[i]),
				  &rcText, TEXT_FORMAT & ~DT_CENTER);
	}
	DeleteObject (hFont);
}

void DoBitBlast (HWND hWnd, HDC hdc)
{
HBITMAP	hBmp;
RECT	rc;
HDC		BmpDC;

	GetClientRect(hWnd, &rc);
	hBmp = LoadBitmap (hInst, MAKEINTRESOURCE (IDB_DUDLEY));
//	hBmp = (HBITMAP) LoadImage (hInst, MAKEINTRESOURCE (IDB_DUDLEY), IMAGE_BITMAP,
//					  rc.right, rc.bottom, LR_DEFAULTCOLOR);
	BmpDC = CreateCompatibleDC(hdc);
	SelectObject (BmpDC, hBmp);
	BitBlt (hdc, 0, 0, rc.right, rc.bottom,
			BmpDC, 0, 0, SRCCOPY);
	DeleteObject (hBmp);
	DeleteDC (BmpDC);
}

void DoBitStretch (HWND hWnd, HDC hdc)
{
HBITMAP	hBmp;
RECT	rc;
HDC		BmpDC;

	GetClientRect(hWnd, &rc);
//	hBmp = LoadBitmap (hInst, MAKEINTRESOURCE (IDB_DUDLEY));
	hBmp = (HBITMAP) LoadImage (hInst, MAKEINTRESOURCE (IDB_DUDLEY), IMAGE_BITMAP,
					  rc.right, rc.bottom, LR_DEFAULTCOLOR);
	BmpDC = CreateCompatibleDC(hdc);
	SelectObject (BmpDC, hBmp);
	BitBlt (hdc, 0, 0, rc.right, rc.bottom,
			BmpDC, 0, 0, SRCCOPY);
//	StretchBlt(hdc, 0, 0, rc.right, rc.bottom, BmpDC,
//					0, 0, 320, 274, SRCCOPY);
	DeleteObject (hBmp);
	DeleteDC (BmpDC);
}

void DoLoadBitmapFromFile (HWND hWnd, HDC hdc)
{
HBITMAP	hBmp;
RECT	rc;
HDC		BmpDC;
OPENFILENAME	ofn;
char	strFileName[_MAX_PATH];

	memset (&ofn, '\0', sizeof (OPENFILENAME));
	memset (strFileName, '\0', sizeof (strFileName));

	ofn.lStructSize = sizeof (OPENFILENAME);
	ofn.hwndOwner = hWnd;
//	ofn.hInstance = hInst;
	ofn.lpstrFile = strFileName;
	ofn.lpstrTitle = "Open Bitmap";
	ofn.nMaxFile = _MAX_PATH;
	ofn.nMaxFileTitle = _MAX_PATH;
	ofn.lpstrDefExt = _T(".bmp");
	ofn.Flags = OFN_HIDEREADONLY | OFN_CREATEPROMPT;
	ofn.lpstrFilter = _T("Bitmap files (*.bmp)\0*.bmp\0\0");
	int nResult = GetSaveFileName (&ofn);
	if ((nResult == 0) || (nResult == IDCANCEL))
		return;
	if (!exist (ofn.lpstrFile))
		return;
	GetClientRect(hWnd, &rc);
	hBmp = (HBITMAP) LoadImage (NULL, ofn.lpstrFile, IMAGE_BITMAP,
					  rc.right, rc.bottom, LR_DEFAULTCOLOR | LR_LOADFROMFILE);
	BmpDC = CreateCompatibleDC(hdc);
	SelectObject (BmpDC, hBmp);
	BitBlt (hdc, 0, 0, rc.right, rc.bottom,
			BmpDC, 0, 0, SRCCOPY);
//	StretchBlt(hdc, 0, 0, rc.right, rc.bottom, BmpDC,
//					0, 0, 320, 274, SRCCOPY);
	DeleteObject (hBmp);
	DeleteDC (BmpDC);
}

bool exist (const char *path)
{
	return (exist ((char *) path));
}

bool exist (char *path)
{
	return _access (path, 4) ? false : true;
}