[netrek-cvs] client/netrekxp/src mswindow.c,1.10,1.11

[Bill Balcerski]

Update of /cvsroot/netrek/client/netrekxp/src
In directory sc8-pr-cvs1.sourceforge.net:/tmp/cvs-serv23153/src

Modified Files:
	mswindow.c 
Log Message:
Added new scaling function that will allow us to use higher resolution bitmaps - requires a set of x,y coords for the source bitmap (all defined in bitmap.h already) and a set for the diplay coords (defined in data.h for most bitmaps already).

Index: mswindow.c
===================================================================
RCS file: /cvsroot/netrek/client/netrekxp/src/mswindow.c,v
retrieving revision 1.10
retrieving revision 1.11
diff -u -d -r1.10 -r1.11
--- mswindow.c	1 May 2006 16:10:18 -0000	1.10
+++ mswindow.c	1 May 2006 18:06:22 -0000	1.11
@@ -3765,6 +3765,63 @@
     ReleaseDC (bitmap->hwnd, hdc);
 }
 
+// Modified WriteBitmap for scaling images - BB, 5/1/2006
+void
+W_WriteScaleBitmap (int x,
+               int y,
+               float SCALEX,
+               float SCALEY,
+               W_Icon icon,
+               W_Color color)
+{
+    register struct Icon *bitmap = (struct Icon *) icon;
+    register int border, width, height;
+    register int srcx, srcy;
+    HDC hdc;
+
+    //Fast (I hope) rectangle intersection, don't overwrite our borders
+    srcx = bitmap->x;
+    srcy = bitmap->y;
+    border = bitmap->ClipRectAddr->top;
+    x += border;
+    y += border;
+    
+    if (x < border)
+    {
+        width = bitmap->width - (border - x);
+        srcx += border - x;
+        x = border;
+    }
+    else if ((width = bitmap->ClipRectAddr->right - x) > bitmap->width)
+        width = bitmap->width;
+    if (y < border)
+    {
+        height = bitmap->height - (border - y);
+        srcy += (border - y);
+        y = border;
+    }
+    else if ((height = bitmap->ClipRectAddr->bottom - y) > bitmap->height)
+        height = bitmap->height;
+
+    hdc = GetDC (bitmap->hwnd);
+    if (NetrekPalette)
+    {
+        SelectPalette (hdc, NetrekPalette, FALSE);
+        RealizePalette (hdc);
+    }
+    SelectObject (GlobalMemDC, bitmap->bm);
+
+    //Set the color of the bitmap
+    //(oddly enough, 1-bit = bk color, 0-bit = text (fg) color)
+    SetBkColor (hdc, colortable[color].rgb);
+    SetTextColor (hdc, colortable[BLACK].rgb);
+    SetStretchBltMode(hdc, HALFTONE);  // Best quality
+    StretchBlt (hdc, x, y,          //Copy the bitmap
+            (int)(height/SCALEX), (int)(width/SCALEY), GlobalMemDC, srcx, srcy, width, height, SRCPAINT);  // <-- using OR mode
+
+    ReleaseDC (bitmap->hwnd, hdc);
+}
+
 void
 W_WriteBitmapGrey (int x,
                    int y,