generalize formatting code so different formatters can be registered and each has their own source file,

Since we will likely have OSL formatting added soon.

1 files changed, 171 insertions, 0 deletions

diff --git a/source/blender/editors/space_text/text_format.c b/source/blender/editors/space_text/text_format.c
new file mode 100644
index 00000000000..512b512dbc4
--- /dev/null
+++ b/source/blender/editors/space_text/text_format.c
@@ -0,0 +1,171 @@
+/*
+ * ***** BEGIN GPL LICENSE BLOCK *****
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ *
+ * The Original Code is Copyright (C) 2001-2002 by NaN Holding BV.
+ * All rights reserved.
+ *
+ * The Original Code is: all of this file.
+ *
+ * Contributor(s): none yet.
+ *
+ * ***** END GPL LICENSE BLOCK *****
+ */
+
+/** \file blender/editors/space_text/text_draw.c
+ *  \ingroup sptext
+ */
+
+
+#include <math.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/stat.h>
+
+#include "MEM_guardedalloc.h"
+
+#include "BLF_api.h"
+
+#include "BLI_blenlib.h"
+#include "BLI_math.h"
+#include "BLI_utildefines.h"
+
+#include "DNA_text_types.h"
+#include "DNA_space_types.h"
+#include "DNA_screen_types.h"
+#include "DNA_userdef_types.h"
+
+#include "BKE_context.h"
+#include "BKE_suggestions.h"
+#include "BKE_text.h"
+
+#include "BIF_gl.h"
+
+#include "ED_datafiles.h"
+#include "UI_interface.h"
+#include "UI_resources.h"
+
+#include "text_intern.h"
+#include "text_format.h"
+
+
+/****************** flatten string **********************/
+
+static void flatten_string_append(FlattenString *fs, const char *c, int accum, int len)
+{
+	int i;
+
+	if (fs->pos + len > fs->len) {
+		char *nbuf; int *naccum;
+		fs->len *= 2;
+
+		nbuf = MEM_callocN(sizeof(*fs->buf) * fs->len, "fs->buf");
+		naccum = MEM_callocN(sizeof(*fs->accum) * fs->len, "fs->accum");
+
+		memcpy(nbuf, fs->buf, fs->pos * sizeof(*fs->buf));
+		memcpy(naccum, fs->accum, fs->pos * sizeof(*fs->accum));
+
+		if (fs->buf != fs->fixedbuf) {
+			MEM_freeN(fs->buf);
+			MEM_freeN(fs->accum);
+		}
+
+		fs->buf = nbuf;
+		fs->accum = naccum;
+	}
+
+	for (i = 0; i < len; i++) {
+		fs->buf[fs->pos + i] = c[i];
+		fs->accum[fs->pos + i] = accum;
+	}
+
+	fs->pos += len;
+}
+
+int flatten_string(SpaceText *st, FlattenString *fs, const char *in)
+{
+	int r, i, total = 0;
+
+	memset(fs, 0, sizeof(FlattenString));
+	fs->buf = fs->fixedbuf;
+	fs->accum = fs->fixedaccum;
+	fs->len = sizeof(fs->fixedbuf);
+
+	for (r = 0, i = 0; *in; r++) {
+		if (*in == '\t') {
+			i = st->tabnumber - (total % st->tabnumber);
+			total += i;
+
+			while (i--)
+				flatten_string_append(fs, " ", r, 1);
+
+			in++;
+		}
+		else {
+			size_t len = BLI_str_utf8_size_safe(in);
+			flatten_string_append(fs, in, r, len);
+			in += len;
+			total++;
+		}
+	}
+
+	flatten_string_append(fs, "\0", r, 1);
+
+	return total;
+}
+
+void flatten_string_free(FlattenString *fs)
+{
+	if (fs->buf != fs->fixedbuf)
+		MEM_freeN(fs->buf);
+	if (fs->accum != fs->fixedaccum)
+		MEM_freeN(fs->accum);
+}
+
+/* Ensures the format string for the given line is long enough, reallocating
+ * as needed. Allocation is done here, alone, to ensure consistency. */
+
+/*TODO: rename! flatten_string_len_ensure() */
+int text_check_format_len(TextLine *line, unsigned int len)
+{
+	if (line->format) {
+		if (strlen(line->format) < len) {
+			MEM_freeN(line->format);
+			line->format = MEM_mallocN(len + 2, "SyntaxFormat");
+			if (!line->format) return 0;
+		}
+	}
+	else {
+		line->format = MEM_mallocN(len + 2, "SyntaxFormat");
+		if (!line->format) return 0;
+	}
+
+	return 1;
+}
+
+/* *** Registration *** */
+static ListBase tft_lb = {NULL, NULL};
+void ED_text_format_register(TextFormatType *tft)
+{
+	BLI_addtail(&tft_lb, tft);
+}
+
+TextFormatType *ED_text_format_get(Text *UNUSED(text))
+{
+	/* NOTE: once more types are added we'll need to return some type based on 'text'
+	 * for now this function is more of a placeholder */
+
+	return tft_lb.first;
+}