sync code with last improvements from OpenBSD

2023-08-28 05:57:34 +00:00 · 2023-08-28 05:57:34 +00:00 · 88965415ff
commit 88965415ff
26235 changed files with 29195616 additions and 0 deletions
--- a/lib/libX11/modules/om/generic/omTextExt.c
+++ b/lib/libX11/modules/om/generic/omTextExt.c
@ -0,0 +1,135 @@
+/*
+ * Copyright 1992, 1993 by TOSHIBA Corp.
+ *
+ * Permission to use, copy, modify, and distribute this software and its
+ * documentation for any purpose and without fee is hereby granted, provided
+ * that the above copyright notice appear in all copies and that both that
+ * copyright notice and this permission notice appear in supporting
+ * documentation, and that the name of TOSHIBA not be used in advertising
+ * or publicity pertaining to distribution of the software without specific,
+ * written prior permission. TOSHIBA make no representations about the
+ * suitability of this software for any purpose.  It is provided "as is"
+ * without express or implied warranty.
+ *
+ * TOSHIBA DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
+ * ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
+ * TOSHIBA BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
+ * ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
+ * WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
+ * ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
+ * SOFTWARE.
+ *
+ * Author: Katsuhisa Yano	TOSHIBA Corp.
+ *			   	mopi@osa.ilab.toshiba.co.jp
+ */
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+#include "Xlibint.h"
+#include "XomGeneric.h"
+#include <stdio.h>
+
+int
+_XomGenericTextExtents(
+    XOC oc,
+    XOMTextType type,
+    XPointer text,
+    int length,
+    XRectangle *overall_ink,
+    XRectangle *overall_logical)
+{
+    XlcConv conv;
+    XFontStruct *font;
+    Bool is_xchar2b;
+    XPointer args[2];
+    XChar2b xchar2b_buf[BUFSIZ], *buf;
+    int direction, logical_ascent, logical_descent, tmp_ascent, tmp_descent;
+    XCharStruct overall, tmp_overall;
+    int buf_len, left;
+    Bool first = True;
+
+    conv = _XomInitConverter(oc, type);
+    if (conv == NULL)
+	return 0;
+
+    bzero((char *) &overall, sizeof(XCharStruct));
+    logical_ascent = logical_descent = 0;
+
+    args[0] = (XPointer) &font;
+    args[1] = (XPointer) &is_xchar2b;
+
+    while (length > 0) {
+	buf = xchar2b_buf;
+	left = buf_len = BUFSIZ;
+
+	if (_XomConvert(oc, conv, (XPointer *) &text, &length,
+			(XPointer *) &buf, &left, args, 2) < 0)
+	    break;
+	buf_len -= left;
+
+	if (is_xchar2b)
+	    XTextExtents16(font, xchar2b_buf, buf_len, &direction,
+			   &tmp_ascent, &tmp_descent, &tmp_overall);
+	else
+	    XTextExtents(font, (char *) xchar2b_buf, buf_len, &direction,
+			 &tmp_ascent, &tmp_descent, &tmp_overall);
+
+	if (first) {	/* initialize overall */
+	    overall = tmp_overall;
+	    logical_ascent = tmp_ascent;
+	    logical_descent = tmp_descent;
+	    first = False;
+	} else {
+	    overall.lbearing = min(overall.lbearing,
+				   overall.width + tmp_overall.lbearing);
+	    overall.rbearing = max(overall.rbearing,
+				   overall.width + tmp_overall.rbearing);
+	    overall.ascent = max(overall.ascent, tmp_overall.ascent);
+	    overall.descent = max(overall.descent, tmp_overall.descent);
+	    overall.width += tmp_overall.width;
+	    logical_ascent = max(logical_ascent, tmp_ascent);
+	    logical_descent = max(logical_descent, tmp_descent);
+	}
+    }
+
+    if (overall_ink) {
+	overall_ink->x = overall.lbearing;
+	overall_ink->y = -(overall.ascent);
+	overall_ink->width = overall.rbearing - overall.lbearing;
+	overall_ink->height = overall.ascent + overall.descent;
+    }
+
+    if (overall_logical) {
+	overall_logical->x = 0;
+        overall_logical->y = -(logical_ascent);
+	overall_logical->width = overall.width;
+        overall_logical->height = logical_ascent + logical_descent;
+    }
+
+    return overall.width;
+}
+
+int
+_XmbGenericTextExtents(XOC oc, _Xconst char *text, int length,
+		       XRectangle *overall_ink, XRectangle *overall_logical)
+{
+    return _XomGenericTextExtents(oc, XOMMultiByte, (XPointer) text, length,
+				  overall_ink, overall_logical);
+}
+
+int
+_XwcGenericTextExtents(XOC oc, _Xconst wchar_t *text, int length,
+		       XRectangle *overall_ink, XRectangle *overall_logical)
+{
+    return _XomGenericTextExtents(oc, XOMWideChar, (XPointer) text, length,
+				  overall_ink, overall_logical);
+}
+
+int
+_Xutf8GenericTextExtents(XOC oc, _Xconst char *text, int length,
+			 XRectangle *overall_ink, XRectangle *overall_logical)
+{
+    return _XomGenericTextExtents(oc, XOMUtf8String, (XPointer) text, length,
+				  overall_ink, overall_logical);
+}