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Diffstat (limited to 'libX11/modules/om/generic/omTextExt.c')
-rw-r--r--libX11/modules/om/generic/omTextExt.c137
1 files changed, 137 insertions, 0 deletions
diff --git a/libX11/modules/om/generic/omTextExt.c b/libX11/modules/om/generic/omTextExt.c
new file mode 100644
index 000000000..4117e60f9
--- /dev/null
+++ b/libX11/modules/om/generic/omTextExt.c
@@ -0,0 +1,137 @@
+/* $Xorg: omTextExt.c,v 1.3 2000/08/17 19:45:22 cpqbld Exp $ */
+/*
+ * 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
+ */
+/* $XFree86: xc/lib/X11/omTextExt.c,v 1.5 2003/04/13 19:22:22 dawes Exp $ */
+
+#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);
+}