From a5cac5434a9cb316b24e4b0a47c4d3f2f240dec6 Mon Sep 17 00:00:00 2001
From: Campbell Barton <ideasman42@gmail.com>
Date: Mon, 29 Nov 2010 20:42:03 +0000
Subject: bugfix [#24969] Python Console bug: inserting a large text leads to
 strange caret behavior

Caret wasn't wrapping.
---
 .../blender/editors/space_console/console_draw.c   | 28 ++++++++++++++++++----
 source/blender/editors/space_info/textview.c       |  1 +
 source/blender/editors/space_info/textview.h       |  2 ++
 3 files changed, 26 insertions(+), 5 deletions(-)

(limited to 'source')

diff --git a/source/blender/editors/space_console/console_draw.c b/source/blender/editors/space_console/console_draw.c
index 6d7eb45f31e..8112008e9a1 100644
--- a/source/blender/editors/space_console/console_draw.c
+++ b/source/blender/editors/space_console/console_draw.c
@@ -150,17 +150,35 @@ static int console_textview_line_color(struct TextViewContext *tvc, unsigned cha
 
 	/* annoying hack, to draw the prompt */
 	if(tvc->iter_index == 0) {
-		SpaceConsole *sc= (SpaceConsole *)tvc->arg1;
-		int prompt_len= strlen(sc->prompt);
+		const SpaceConsole *sc= (SpaceConsole *)tvc->arg1;
+		const ConsoleLine *cl= (ConsoleLine *)sc->history.last;
+		const int prompt_len= strlen(sc->prompt);
+		const int cursor_loc= cl->cursor + prompt_len;
 		int xy[2] = {CONSOLE_DRAW_MARGIN, CONSOLE_DRAW_MARGIN};
-		const int cursor = ((ConsoleLine *)sc->history.last)->cursor;
+		int pen[2];
 		xy[1] += tvc->lheight/6;
-		
+
+		/* account for wrapping */
+		if(cl->len < tvc->console_width) {
+			/* simple case, no wrapping */
+			pen[0]= tvc->cwidth * cursor_loc;
+			pen[1]= -2;
+		}
+		else {
+			/* wrap */
+			pen[0]= tvc->cwidth * (cursor_loc % tvc->console_width);
+			pen[1]= -2 + (((cl->len / tvc->console_width) - (cursor_loc / tvc->console_width)) * tvc->lheight);
+		}
+
 		/* cursor */
 		UI_GetThemeColor3ubv(TH_CONSOLE_CURSOR, (char *)fg);
 		glColor3ubv(fg);
 
-		glRecti(xy[0]+(tvc->cwidth*(cursor+prompt_len)) -1, xy[1]-2, xy[0]+(tvc->cwidth*(cursor+prompt_len)) +1, xy[1]+tvc->lheight-2);
+		glRecti(	(xy[0] + pen[0]) - 1,
+					(xy[1] + pen[1]),
+					(xy[0] + pen[0]) + 1,
+					(xy[1] + pen[1] + tvc->lheight)
+		);
 	}
 
 	console_line_color(fg, cl->type);
diff --git a/source/blender/editors/space_info/textview.c b/source/blender/editors/space_info/textview.c
index 0cdace3039c..53751884bec 100644
--- a/source/blender/editors/space_info/textview.c
+++ b/source/blender/editors/space_info/textview.c
@@ -250,6 +250,7 @@ int textview_draw(TextViewContext *tvc, int draw, int mval[2], void **mouse_pick
 
 	/* shouldnt be needed */
 	tvc->cwidth= cdc.cwidth;
+	tvc->console_width= cdc.console_width;
 	tvc->iter_index= 0;
 
 	if(tvc->sel_start != tvc->sel_end) {
diff --git a/source/blender/editors/space_info/textview.h b/source/blender/editors/space_info/textview.h
index 35c44d36f27..390f9f5ed7c 100644
--- a/source/blender/editors/space_info/textview.h
+++ b/source/blender/editors/space_info/textview.h
@@ -28,6 +28,8 @@ typedef struct TextViewContext {
 
 	/* view settings */
 	int cwidth; /* shouldnt be needed! */
+	int console_width; /* shouldnt be needed! */
+
 	int winx;
 	int ymin, ymax;
 	
-- 
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