From e611b132f9b8abe35b362e5870b74bce94a1e58e Mon Sep 17 00:00:00 2001
From: Adam <you@example.com>
Date: Sat, 16 May 2020 20:51:50 -0700
Subject: initial commit

---
 private/ole2ui32/oleutl.cpp | 132 ++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 132 insertions(+)
 create mode 100644 private/ole2ui32/oleutl.cpp

(limited to 'private/ole2ui32/oleutl.cpp')

diff --git a/private/ole2ui32/oleutl.cpp b/private/ole2ui32/oleutl.cpp
new file mode 100644
index 000000000..1a0b0ca6b
--- /dev/null
+++ b/private/ole2ui32/oleutl.cpp
@@ -0,0 +1,132 @@
+/*
+ * OLEUTL.CPP
+ *
+ * Miscellaneous utility functions for OLE 2.0 Applications:
+ *
+ *  Function                      Purpose
+ *  -------------------------------------------------------------------
+ *  XformWidthInHimetricToPixels  Converts an int width from HiMetric units
+ *  XformHeightInHimetricToPixels Converts an int height from HiMetric units
+ *
+ *  CommitStorage                 Commits all changes in a docfile
+ *  CreateChildStorage            Creates child storage in another storage
+ *  OpenChildStorage              Opens child storage in another storage
+ *
+ *
+ * Copyright (c)1992 Microsoft Corporation, All Right Reserved
+ */
+
+
+#include "precomp.h"
+#include <stdlib.h>
+
+//Internal function to this module. No need for UNICODE in this function
+static LPSTR GetWord(LPSTR lpszSrc, LPSTR lpszDst);
+
+/*
+ * XformWidthInHimetricToPixels
+ * XformHeightInHimetricToPixels
+ *
+ * Functions to convert an int between a device coordinate system and
+ * logical HiMetric units.
+ *
+ * Parameters:
+ *  hDC             HDC providing reference to the pixel mapping.  If
+ *                  NULL, a screen DC is used.
+ *
+ *  Size Functions:
+ *  lpSizeSrc       LPSIZEL providing the structure to convert.
+ *  lpSizeDst       LPSIZEL providing the structure to receive converted
+ *                  units.
+ *
+ *  Width Functions:
+ *  iWidth          int containing the value to convert.
+ *
+ * Return Value:
+ *  Size Functions:     None
+ *  Width Functions:    Converted value of the input parameters.
+ *
+ * NOTE:
+ *  When displaying on the screen, Window apps display everything enlarged
+ *  from its actual size so that it is easier to read. For example, if an
+ *  app wants to display a 1in. horizontal line, that when printed is
+ *  actually a 1in. line on the printed page, then it will display the line
+ *  on the screen physically larger than 1in. This is described as a line
+ *  that is "logically" 1in. along the display width. Windows maintains as
+ *  part of the device-specific information about a given display device:
+ *      LOGPIXELSX -- no. of pixels per logical in along the display width
+ *      LOGPIXELSY -- no. of pixels per logical in along the display height
+ *
+ *  The following formula converts a distance in pixels into its equivalent
+ *  logical HIMETRIC units:
+ *
+ *      DistInHiMetric = (HIMETRIC_PER_INCH * DistInPix)
+ *                       -------------------------------
+ *                           PIXELS_PER_LOGICAL_IN
+ *
+ */
+STDAPI_(int) XformWidthInHimetricToPixels(HDC hDC, int iWidthInHiMetric)
+{
+        int     iXppli;     //Pixels per logical inch along width
+        int     iWidthInPix;
+        BOOL    fSystemDC=FALSE;
+
+        if (NULL==hDC)
+        {
+                hDC=GetDC(NULL);
+                fSystemDC=TRUE;
+        }
+
+        iXppli = GetDeviceCaps (hDC, LOGPIXELSX);
+
+        //We got logical HIMETRIC along the display, convert them to pixel units
+        iWidthInPix = MAP_LOGHIM_TO_PIX(iWidthInHiMetric, iXppli);
+
+        if (fSystemDC)
+                ReleaseDC(NULL, hDC);
+
+        return iWidthInPix;
+}
+
+
+STDAPI_(int) XformHeightInHimetricToPixels(HDC hDC, int iHeightInHiMetric)
+{
+        int     iYppli;     //Pixels per logical inch along height
+        int     iHeightInPix;
+        BOOL    fSystemDC=FALSE;
+
+        if (NULL==hDC)
+        {
+                hDC=GetDC(NULL);
+                fSystemDC=TRUE;
+        }
+
+        iYppli = GetDeviceCaps (hDC, LOGPIXELSY);
+
+        //* We got logical HIMETRIC along the display, convert them to pixel units
+        iHeightInPix = MAP_LOGHIM_TO_PIX(iHeightInHiMetric, iYppli);
+
+        if (fSystemDC)
+                ReleaseDC(NULL, hDC);
+
+        return iHeightInPix;
+}
+
+/* GetWord
+ * -------
+ *
+ * LPSTR lpszSrc - Pointer to a source string
+ * LPSTR lpszDst - Pointer to destination buffer
+ *
+ * Will copy one space-terminated or null-terminated word from the source
+ * string to the destination buffer.
+ * returns: pointer to next character following the word.
+ */
+static LPSTR GetWord(LPSTR lpszSrc, LPSTR lpszDst)
+{
+        while (*lpszSrc && !(*lpszSrc == ' ' || *lpszSrc == '\t' || *lpszSrc == '\n'))
+                *lpszDst++ = *lpszSrc++;
+
+        *lpszDst = '\0';
+        return lpszSrc;
+}
-- 
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