1 files changed, 313 insertions, 0 deletions
diff --git a/Src/Plugins/Library/ml_devices/graphics.cpp b/Src/Plugins/Library/ml_devices/graphics.cpp
new file mode 100644
index 00000000..7feb214b
--- /dev/null
+++ b/Src/Plugins/Library/ml_devices/graphics.cpp
@@ -0,0 +1,313 @@
+#include "main.h"
+#include "./graphics.h"
+
+BYTE 
+Graphics_GetSysFontQuality()
+{
+	BOOL smoothingEnabled;
+	if (FALSE == SystemParametersInfoW(SPI_GETFONTSMOOTHING, 0, &smoothingEnabled, 0) ||
+		FALSE == smoothingEnabled)
+	{
+		return DEFAULT_QUALITY;
+	}
+    
+    OSVERSIONINFOW vi;
+    vi.dwOSVersionInfoSize = sizeof(vi);
+    if (FALSE == GetVersionExW(&vi)) 
+		return DEFAULT_QUALITY;
+
+	if (vi.dwMajorVersion > 5 || (vi.dwMajorVersion == 5 && vi.dwMinorVersion >= 1))
+	{
+		UINT smootingType;
+	    if (FALSE == SystemParametersInfoW(SPI_GETFONTSMOOTHINGTYPE, 0, &smootingType, 0))
+			return DEFAULT_QUALITY;
+	    
+	    if (FE_FONTSMOOTHINGCLEARTYPE == smootingType)
+			return CLEARTYPE_NATURAL_QUALITY/*CLEARTYPE_QUALITY*/;
+	}
+
+	return ANTIALIASED_QUALITY;
+}
+
+HFONT 
+Graphics_CreateSysFont()
+{
+	LOGFONTW lf = {0};
+	HFONT font = NULL;
+
+	if (FALSE == SystemParametersInfoW(SPI_GETICONTITLELOGFONT, sizeof(lf), &lf, 0))
+		return NULL;
+	
+	lf.lfQuality = Graphics_GetSysFontQuality();
+	font = CreateFontIndirectW(&lf);
+	
+	return font;
+}
+
+HFONT 
+Graphics_DuplicateFont(HFONT sourceFont, INT heightDeltaPt, BOOL forceBold, BOOL systemQuality)
+{
+	LOGFONTW lf = {0};
+
+	if (NULL == sourceFont) 
+		return NULL;
+	
+	
+	if (sizeof(lf) != GetObjectW(sourceFont, sizeof(lf), &lf))
+		return NULL;
+
+	if (0 != heightDeltaPt)
+	{
+		HDC hdcTmp = NULL, hdc = GetDCEx(NULL, NULL, DCX_WINDOW | DCX_CACHE | DCX_NORESETATTRS);
+
+		if (NULL != hdc)
+		{
+			hdcTmp = CreateCompatibleDC(hdc);
+			ReleaseDC(NULL, hdc);
+		}
+		
+		if (NULL == hdcTmp)
+			return NULL;
+		
+		LONG pixelsY = GetDeviceCaps(hdcTmp, LOGPIXELSY);
+		HFONT prevFont = SelectFont(hdcTmp, sourceFont);
+		
+		TEXTMETRICW tm = {0};
+		if (FALSE != GetTextMetricsW(hdcTmp, &tm))
+		{
+			INT basePt = MulDiv(tm.tmHeight - tm.tmInternalLeading, 96, pixelsY);
+			lf.lfHeight = -MulDiv((basePt + heightDeltaPt), pixelsY, 96);
+
+		}
+
+		SelectObject(hdcTmp, prevFont);
+		DeleteDC(hdcTmp);
+	}
+
+	if (FALSE != systemQuality)
+		lf.lfQuality = Graphics_GetSysFontQuality();
+	if (FALSE != forceBold && lf.lfWeight < FW_BOLD)
+		lf.lfWeight = FW_BOLD;
+
+	return CreateFontIndirectW(&lf);
+}
+
+long 
+Graphics_GetFontHeight(HDC hdc)
+{
+	TEXTMETRICW tm;
+	if (FALSE == GetTextMetricsW(hdc, &tm))
+		return 0;
+
+	return tm.tmHeight;
+}
+
+long
+Graphics_GetAveStrWidth(HDC hdc, UINT cchLen)
+{
+	const char szTest[] = 
+	{ 
+		'A','B','C','D','E','F','G','H','I','J','K','L','M','N','O','P', 'Q','R','S','T','U','V','W','X','Y','Z',
+		'a','b','c','d','e','f','g','h','i','j','k','l', 'm','n','o','p','q','r','s','t','u','v','w','x','y','z'
+	};
+
+	SIZE textSize;
+	if (FALSE == GetTextExtentPointA(hdc, szTest, ARRAYSIZE(szTest) -1, &textSize))
+		return 0;
+
+	LONG result;
+	if (1 == cchLen)
+	{
+		result = (textSize.cx + ARRAYSIZE(szTest)/2)/ARRAYSIZE(szTest);
+	}
+	else
+	{
+		result = MulDiv(cchLen, textSize.cx + ARRAYSIZE(szTest)/2, ARRAYSIZE(szTest));
+		if (0 != result)
+		{
+			TEXTMETRICW tm;
+			if (FALSE != GetTextMetricsW(hdc, &tm))
+				result += tm.tmOverhang;
+		}
+	}
+	return result;
+}
+
+BOOL 
+Graphics_GetWindowBaseUnits(HWND hwnd, LONG *baseUnitX, LONG *baseUnitY)
+{
+	BOOL result;
+	result = FALSE;
+
+	if (NULL != hwnd)
+	{		
+		HDC hdc = GetDCEx(hwnd, NULL, DCX_CACHE | DCX_NORESETATTRS);
+		if (NULL != hdc)
+		{
+			TEXTMETRICW tm;
+			HFONT font, prevFont;
+			
+			font = (HFONT)SNDMSG(hwnd, WM_GETFONT, 0, 0L);
+			prevFont = SelectFont(hdc, font);
+			
+			if (FALSE != GetTextMetricsW(hdc, &tm))
+			{
+				if (NULL != baseUnitX) 
+					*baseUnitX = Graphics_GetAveStrWidth(hdc, 1);
+
+				if (NULL != baseUnitY) 
+					*baseUnitY = tm.tmHeight;
+
+				result = TRUE;
+			}
+
+			SelectFont(hdc, prevFont);
+			ReleaseDC(hwnd, hdc); 
+		}
+	}
+	return result;
+}
+
+
+typedef int (*SkinColorFunc)(int idx);
+
+COLORREF Graphics_GetSkinColor(unsigned int colorIndex)
+{
+	static SkinColorFunc GetSkinColor = NULL;
+	
+	if (NULL == GetSkinColor)
+	{
+		GetSkinColor = (SkinColorFunc)SENDMLIPC(Plugin_GetLibraryWindow(), ML_IPC_SKIN_WADLG_GETFUNC, 1);
+		if (NULL == GetSkinColor)
+			return RGB(255, 0, 255);
+	}
+
+	return GetSkinColor(colorIndex);
+}
+
+COLORREF 
+Graphics_BlendColors(COLORREF rgbTop, COLORREF rgbBottom, INT alpha)
+{
+	if (alpha > 254) return rgbTop;
+	if (alpha < 0) return rgbBottom;
+
+	WORD k = (WORD)(((255 - alpha)*255 + 127)/255);
+	
+	return RGB( (GetRValue(rgbTop)*alpha + k*GetRValue(rgbBottom) + 127)/255, 
+				(GetGValue(rgbTop)*alpha + k*GetGValue(rgbBottom) + 127)/255, 
+				(GetBValue(rgbTop)*alpha + k*GetBValue(rgbBottom) + 127)/255);
+}
+
+INT 
+Graphics_GetColorDistance(COLORREF rgb1, COLORREF rgb2)
+{
+	return (1000 * ((GetRValue(rgb1) - GetRValue(rgb2)) + 
+			(GetGValue(rgb1) - GetGValue(rgb2)) +
+			(GetBValue(rgb1) - GetBValue(rgb2))))/ (3 * 255);
+}
+
+void 
+Graphics_ClampRect(RECT *rect, const RECT *boxRect)
+{
+	if (rect->left < boxRect->left)
+		rect->left = boxRect->left;
+	
+	if (rect->top < boxRect->top)
+		rect->top = boxRect->top;
+
+	if (rect->right > boxRect->right)
+		rect->right = boxRect->right;
+	
+	if (rect->bottom > boxRect->bottom)
+		rect->bottom = boxRect->bottom;
+}
+
+void 
+Graphics_NormalizeRect(RECT *rect)
+{
+	if (rect->top > rect->bottom)
+		rect->bottom = rect->top;
+
+	if (rect->left > rect->right)
+		rect->right = rect->left;
+}
+
+void 
+Graphics_GetRectSizeNormalized(const RECT *rect, SIZE *size)
+{
+	size->cx = rect->right - rect->left;
+	if (size->cx < 0) 
+		size->cx = 0;
+
+	size->cy = rect->bottom - rect->top;
+	if (size->cy < 0) 
+		size->cy = 0;
+}
+
+BOOL 
+Graphics_IsRectFit(const RECT *rect, const RECT *boxRect)
+{
+	if (rect->left < boxRect->left ||
+		rect->top < boxRect->top ||
+		rect->right > boxRect->right ||
+		rect->bottom > boxRect->bottom)
+	{
+		return FALSE;
+	}
+
+	return TRUE;
+}
+
+
+BOOL SetSizeEmpty(SIZE *size)
+{
+	if (NULL == size)
+		return FALSE;
+
+	ZeroMemory(size, sizeof(SIZE));
+	return TRUE;
+}
+
+BOOL IsSizeEmpty(SIZE *size)
+{
+	return (NULL == size || 0 == size->cx  || 0 == size->cy);
+}
+
+BOOL SetSize(SIZE *size, long width, long height)
+{
+	if (NULL == size)
+		return FALSE;
+
+	size->cx = width;
+	size->cy = height;
+
+	return TRUE;
+}
+
+BOOL SetPoint(POINT *pt, long x, long y)
+{
+	if (NULL == pt)
+		return FALSE;
+
+	pt->x = x;
+	pt->y = y;
+
+	return TRUE;
+}
+
+BOOL MakeRectPolygon(POINT vertices[4], long left, long top, long right, long bottom)
+{
+	if (NULL == vertices)
+		return FALSE;
+
+	vertices[0].x = left;
+	vertices[0].y = top;
+	vertices[1].x = right;
+	vertices[1].y = top;
+	vertices[2].x = right;
+	vertices[2].y = bottom;
+	vertices[3].x = left;
+	vertices[3].y = bottom;
+
+	return TRUE;
+}