Added libXmu-1.0.5

1 files changed, 155 insertions, 0 deletions

diff --git a/libXmu/src/DrawLogo.c b/libXmu/src/DrawLogo.c
new file mode 100644
index 000000000..74e64d866
--- /dev/null
+++ b/libXmu/src/DrawLogo.c
@@ -0,0 +1,155 @@
+/* $Xorg: DrawLogo.c,v 1.4 2001/02/09 02:03:52 xorgcvs Exp $ */
+
+/*
+
+Copyright 1988, 1998  The Open Group
+
+Permission to use, copy, modify, distribute, and sell this software and its
+documentation for any purpose is hereby granted without fee, provided that
+the above copyright notice appear in all copies and that both that
+copyright notice and this permission notice appear in supporting
+documentation.
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
+OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+Except as contained in this notice, the name of The Open Group shall not be
+used in advertising or otherwise to promote the sale, use or other dealings
+in this Software without prior written authorization from The Open Group.
+
+*/
+/* $XFree86: xc/lib/Xmu/DrawLogo.c,v 1.7 2001/01/17 19:42:54 dawes Exp $ */
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+#include <X11/Xlib.h>  
+#include <X11/Xmu/Drawing.h>
+
+/*
+ *  Draw the "official" X Window System Logo, designed by Danny Chong
+ *
+ *  Written by Ollie Jones, Apollo Computer
+ *
+ *  Does some fancy stuff to make the logo look acceptable even
+ *  if it is tiny.  Also makes the various linear elements of
+ *  the logo line up as well as possible considering rasterization.
+ */
+void
+XmuDrawLogo(Display *dpy, Drawable drawable, GC gcFore, GC gcBack,
+	    int x, int y, unsigned int width, unsigned int height)
+{
+    unsigned int size;
+    int thin, gap, d31;
+    XPoint poly[4];
+
+    XFillRectangle(dpy, drawable, gcBack, x, y, width, height);
+
+    /* for now, do a centered even-sized square, at least for now */
+    size = width;
+    if (height < width)
+	 size = height;
+    size &= ~1;
+    x += (width - size) >> 1;
+    y += (height - size) >> 1;
+
+/*    
+ * Draw what will be the thin strokes.
+ *
+ *           ----- 
+ *          /    /
+ *         /    /
+ *        /    /
+ *       /    /
+ *      /____/
+ *           d
+ *
+ * Point d is 9/44 (~1/5) of the way across.
+ */
+
+    thin = (size / 11);
+    if (thin < 1) thin = 1;
+    gap = (thin+3) / 4;
+    d31 = thin + thin + gap;
+    poly[0].x = x + size;              poly[0].y = y;
+    poly[1].x = x + size-d31;          poly[1].y = y;
+    poly[2].x = x + 0;                 poly[2].y = y + size;
+    poly[3].x = x + d31;               poly[3].y = y + size;
+    XFillPolygon(dpy, drawable, gcFore, poly, 4, Convex, CoordModeOrigin);
+
+/*    
+ * Erase area not needed for lower thin stroke.
+ *
+ *           ------ 
+ *          /     /
+ *         /  __ /
+ *        /  /  /
+ *       /  /  /
+ *      /__/__/
+ */
+
+    poly[0].x = x + d31/2;                       poly[0].y = y + size;
+    poly[1].x = x + size / 2;                    poly[1].y = y + size/2;
+    poly[2].x = x + (size/2)+(d31-(d31/2));      poly[2].y = y + size/2;
+    poly[3].x = x + d31;                         poly[3].y = y + size;
+    XFillPolygon(dpy, drawable, gcBack, poly, 4, Convex, CoordModeOrigin);
+
+/*    
+ * Erase area not needed for upper thin stroke.
+ *
+ *           ------ 
+ *          /  /  /
+ *         /--/  /
+ *        /     /
+ *       /     /
+ *      /_____/
+ */
+
+    poly[0].x = x + size - d31/2;                poly[0].y = y;
+    poly[1].x = x + size / 2;                    poly[1].y = y + size/2;
+    poly[2].x = x + (size/2)-(d31-(d31/2));      poly[2].y = y + size/2;
+    poly[3].x = x + size - d31;                  poly[3].y = y;
+    XFillPolygon(dpy, drawable, gcBack, poly, 4, Convex, CoordModeOrigin);
+
+/*
+ * Draw thick stroke.
+ * Point b is 1/4 of the way across.
+ *
+ *      b
+ * -----
+ * \    \
+ *  \    \
+ *   \    \
+ *    \    \
+ *     \____\
+ */
+
+    poly[0].x = x;                     poly[0].y = y;
+    poly[1].x = x + size/4;            poly[1].y = y;
+    poly[2].x = x + size;              poly[2].y = y + size;
+    poly[3].x = x + size - size/4;     poly[3].y = y + size;
+    XFillPolygon(dpy, drawable, gcFore, poly, 4, Convex, CoordModeOrigin);
+
+/*    
+ * Erase to create gap.
+ *
+ *          /
+ *         /
+ *        /
+ *       /
+ *      /
+ */
+
+    poly[0].x = x + size- thin;        poly[0].y = y;
+    poly[1].x = x + size-( thin+gap);  poly[1].y = y;
+    poly[2].x = x + thin;              poly[2].y = y + size;
+    poly[3].x = x + thin + gap;        poly[3].y = y + size;
+    XFillPolygon(dpy, drawable, gcBack, poly, 4, Convex, CoordModeOrigin);
+}