Fix #27319: Text editor "Find" does not locate words.

Added new option to find panel of space text which toggles
case-esensitive search.

Additional changes:
- Send NC_TEXT|NA_EDITED when removing markers in find_and_replace modifier
  this prevents "sticked" markers which disappears on first redraw when
  search text wasn't found
- Do not show "Text wasn't found" error when text to be searched is contained
  in the end of buffer and it's selected. Replacing/marking used to happen, but
  this popup message was really annoying for this case.

TODO: It's incorrect to use UI_GetThemeColor4ubv from this operator

1 files changed, 13 insertions, 4 deletions

diff --git a/source/blender/editors/space_text/text_ops.c b/source/blender/editors/space_text/text_ops.c
index c0c928dcb24..e87719084ce 100644
--- a/source/blender/editors/space_text/text_ops.c
+++ b/source/blender/editors/space_text/text_ops.c
@@ -2841,8 +2841,14 @@ static int find_and_replace(bContext *C, wmOperator *op, short mode)
 		flags ^= ST_FIND_WRAP;
 
 	do {
-		if(first)
+		int proceed= 0;
+
+		if(first) {
+			if(text->markers.first)
+				WM_event_add_notifier(C, NC_TEXT|NA_EDITED, text);
+
 			txt_clear_markers(text, TMARK_GRP_FINDALL, 0);
+		}
 
 		first= 0;
 		
@@ -2850,7 +2856,10 @@ static int find_and_replace(bContext *C, wmOperator *op, short mode)
 		if(mode!=TEXT_FIND && txt_has_sel(text)) {
 			tmp= txt_sel_to_buf(text);
 
-			if(strcmp(st->findstr, tmp)==0) {
+			if(flags & ST_MATCH_CASE) proceed= strcmp(st->findstr, tmp)==0;
+			else proceed= BLI_strcasecmp(st->findstr, tmp)==0;
+
+			if(proceed) {
 				if(mode==TEXT_REPLACE) {
 					txt_insert_buf(text, st->replacestr);
 					if(text->curl && text->curl->format) {
@@ -2880,7 +2889,7 @@ static int find_and_replace(bContext *C, wmOperator *op, short mode)
 		}
 
 		/* Find next */
-		if(txt_find_string(text, st->findstr, flags & ST_FIND_WRAP)) {
+		if(txt_find_string(text, st->findstr, flags & ST_FIND_WRAP, flags & ST_MATCH_CASE)) {
 			text_update_cursor_moved(C);
 			WM_event_add_notifier(C, NC_TEXT|ND_CURSOR, text);
 		}
@@ -2897,7 +2906,7 @@ static int find_and_replace(bContext *C, wmOperator *op, short mode)
 			first= 1;
 		}
 		else {
-			if(!found) BKE_reportf(op->reports, RPT_ERROR, "Text not found: %s", st->findstr);
+			if(!found && !proceed) BKE_reportf(op->reports, RPT_ERROR, "Text not found: %s", st->findstr);
 			break;
 		}
 		found = 1;