Adds menu item in text editor under format menu to convert whitespace to

Spaces or to tabs.
Adds function void convert_tabs(struct SpaceText *st, int tab)
int tab is eather 0 or 1; 1 if converting to tabs
I was going to make this auto run when running a script but did not know what that would do to the GE or any thing else.

4 files changed, 136 insertions, 0 deletions

diff --git a/source/blender/blenkernel/BKE_text.h b/source/blender/blenkernel/BKE_text.h
index 447a94dd487..d12b1f28570 100644
--- a/source/blender/blenkernel/BKE_text.h
+++ b/source/blender/blenkernel/BKE_text.h
@@ -94,6 +94,7 @@ void 	comment			(struct Text *text);
 void 	indent			(struct Text *text);
 void	uncomment		(struct Text *text);
 int	setcurr_tab		(struct Text *text);
+void	convert_tabs		(struct SpaceText *st, int tab);
 
 /* Undo opcodes */
 
diff --git a/source/blender/include/BSE_headerbuttons.h b/source/blender/include/BSE_headerbuttons.h
index e9aea3fbada..d405e2683a6 100644
--- a/source/blender/include/BSE_headerbuttons.h
+++ b/source/blender/include/BSE_headerbuttons.h
@@ -121,6 +121,7 @@ void spaceipo_assign_ipo(struct SpaceIpo *si, struct Ipo *ipo);
 
 /* header_text.c */
 void do_text_editmenu_to3dmenu(void *arg, int event);
+void do_text_formatmenu_convert(void *arg, int event);
 
 /* header_info.c */
 void do_info_add_meshmenu(void *arg, int event);
diff --git a/source/blender/src/drawtext.c b/source/blender/src/drawtext.c
index 684acf15e10..23a881ea72a 100644
--- a/source/blender/src/drawtext.c
+++ b/source/blender/src/drawtext.c
@@ -2049,3 +2049,108 @@ static int check_numbers(char *string)
 	}
 	return 0;
 }
+
+void convert_tabs (struct SpaceText *st, int tab)
+{
+	Text *text = st->text;
+	TextLine *tmp;
+	char *check_line, *new_line, *format;
+	int a, j, extra, number; //unknown for now
+	
+	if (!text) return;
+	
+	tmp = text->lines.first;
+	
+	//first convert to all space, this make it alot easier to convert to tabs because there is no mixtures of ' ' && '\t'
+	while(tmp) {
+		check_line = tmp->line;
+		new_line = MEM_mallocN(render_string(check_line)+1, "Converted_Line");
+		format = MEM_mallocN(render_string(check_line)+1, "Converted_Syntax_format");
+		j = 0;
+		for (a=0; a < strlen(check_line); a++) { //foreach char in line
+			if(check_line[a] == '\t') { //checking for tabs
+				//get the number of spaces this tabs is showing
+				//i dont like doing it this way but will look into it later
+				new_line[j] = '\0';
+				number = render_string(new_line);
+				new_line[j] = '\t';
+				new_line[j+1] = '\0';
+				number = render_string(new_line)-number;
+				for(extra = 0; extra < number; extra++) {
+					new_line[j] = ' ';
+					j++;
+				}
+			} else {
+				new_line[j] = check_line[a];
+				++j;
+			}
+		}
+		new_line[j] = '\0';
+		// put new_line in the tmp->line spot still need to try and set the curc correctly
+		if (tmp->line) MEM_freeN(tmp->line);
+		if(tmp->format) MEM_freeN(tmp->format);
+		
+		tmp->line = new_line;
+		tmp->len = strlen(new_line);
+		tmp->format = format;
+		tmp = tmp->next;
+	}
+	
+	if (tab) // Converting to tabs
+	{	//start over from the begining
+		tmp = text->lines.first;
+		
+		while(tmp) {
+			check_line = tmp->line;
+			extra = 0;
+			for (a = 0; a < strlen(check_line); a++) {
+				number = 0;
+				for (j = 0; j < st->tabnumber; j++) {
+					if ((a+j) <= strlen(check_line)) { //check to make sure we are not pass the end of the line
+						if(check_line[a+j] != ' ') {
+							number = 1;
+						}
+					}
+				}
+				if (!number) { //found all number of space to equal a tab
+					a = a+(st->tabnumber-1);
+					extra = extra+1;
+				}
+			}
+			
+			if ( extra > 0 ) { //got tabs make malloc and do what you have to do
+				new_line = MEM_mallocN(strlen(check_line)-(((st->tabnumber*extra)-extra)-1), "Converted_Line");
+				format = MEM_mallocN(strlen(check_line)-(((st->tabnumber*extra)-extra)-1), "Converted_Syntax_format");
+				extra = 0; //reuse vars
+				for (a = 0; a < strlen(check_line); a++) {
+					number = 0;
+					for (j = 0; j < st->tabnumber; j++) {
+						if ((a+j) <= strlen(check_line)) { //check to make sure we are not pass the end of the line
+							if(check_line[a+j] != ' ') {
+								number = 1;
+							}
+						}
+					}
+					if (!number) { //found all number of space to equal a tab
+						new_line[extra] = '\t';
+						a = a+(st->tabnumber-1);
+						++extra;
+						
+					} else { //not adding a tab
+						new_line[extra] = check_line[a];
+						++extra;
+					}
+				}
+				new_line[extra] = '\0';
+				// put new_line in the tmp->line spot still need to try and set the curc correctly
+				if (tmp->line) MEM_freeN(tmp->line);
+				if(tmp->format) MEM_freeN(tmp->format);
+				
+				tmp->line = new_line;
+				tmp->len = strlen(new_line);
+				tmp->format = format;
+			}
+			tmp = tmp->next;
+		}
+	}
+}
diff --git a/source/blender/src/header_text.c b/source/blender/src/header_text.c
index e0f1153f9d4..cfd85742672 100644
--- a/source/blender/src/header_text.c
+++ b/source/blender/src/header_text.c
@@ -425,6 +425,33 @@ static uiBlock *text_editmenu_selectmenu(void *arg_unused)
 	return block;
 }
 
+void do_text_formatmenu_convert(void *arg, int event)
+{
+	SpaceText *st= curarea->spacedata.first;
+	
+	switch(event) {
+	case 1: convert_tabs(st, 0); break;
+	case 2: convert_tabs(st, 1); break;
+	}
+	allqueue(REDRAWVIEW3D, 0);
+}
+
+static uiBlock *text_formatmenu_convert(void *arg_unused)
+{
+	uiBlock *block;
+	short yco = 20, menuwidth = 120;
+
+	block= uiNewBlock(&curarea->uiblocks, "do_text_formatmenu_convert", UI_EMBOSSP, UI_HELV, G.curscreen->mainwin);
+	uiBlockSetButmFunc(block, do_text_formatmenu_convert, NULL);
+
+	uiDefIconTextBut(block, BUTM, 1, ICON_BLANK1, "To Spaces",		0, yco-=20, menuwidth, 19, NULL, 0.0, 0.0, 1, 1, "Converts script whitespace to spaces based on Tab:");
+	uiDefIconTextBut(block, BUTM, 1, ICON_BLANK1, "To Tabs",		0, yco-=20, menuwidth, 19, NULL, 0.0, 0.0, 1, 2, "Converts script whitespace to tabs based on Tab:");
+	
+	uiBlockSetDirection(block, UI_RIGHT);
+	uiTextBoundsBlock(block, 60);
+	return block;
+}
+
 /* Format menu */
 static uiBlock *text_formatmenu(void *arg_unused)
 {
@@ -440,6 +467,8 @@ static uiBlock *text_formatmenu(void *arg_unused)
 	uiDefBut(block, SEPR, 0, "",        0, yco-=6, menuwidth, 6, NULL, 0.0, 0.0, 0, 0, "");
 	uiDefIconTextBut(block, BUTM, 1, ICON_BLANK1, "Comment", 0, yco-=20, menuwidth, 19, NULL, 0.0, 0.0, 0, 5, "");
 	uiDefIconTextBut(block, BUTM, 1, ICON_BLANK1, "Uncomment|Ctrl Shift D", 0, yco-=20, menuwidth, 19, NULL, 0.0, 0.0, 0, 6, "");
+	uiDefBut(block, SEPR, 0, "",        0, yco-=6, menuwidth, 6, NULL, 0.0, 0.0, 0, 0, "");
+	uiDefIconTextBlockBut(block, text_formatmenu_convert, NULL, ICON_RIGHTARROW_THIN, "Convert whitespace", 0, yco-=20, menuwidth, 19, "");
 	
 	if(curarea->headertype==HEADERTOP) {
 		uiBlockSetDirection(block, UI_DOWN);