Three functionalities in one commit, but there's overlap so I can't

separate it...

1) Curve/Surface editmode undo
Uses same syntax as mesh undo, so simple to integrate. Edit-curve data is
also quite simpler, so no need for any hack at all.
It re-uses the undo system from next point, which is nice short & clean
local code

2) Framework for global undo
The undo calls themselves are commented out. In a next commit I want to
enable it for a couple of main features, for further feedback.
The speed goes surprisingly well, especially with this new version that
'pushes' undo after a command, ensuring interactivity isnt frustrated

3) framework for texture based icons in Blender
Not activated code, but tested here. Part of 2.3 UI project.

btw: Johnny Matthews will assist in (and complete) the undo project

1 files changed, 7 insertions, 6 deletions

diff --git a/source/blender/src/interface.c b/source/blender/src/interface.c
index 184e796b9be..7e39dff0f17 100644
--- a/source/blender/src/interface.c
+++ b/source/blender/src/interface.c
@@ -1796,6 +1796,7 @@ static int ui_do_but_NUMSLI(uiBut *but)
 	}
 	else {
 		uiActAsTextBut(but);
+		uibut_do_func(but);	// this is done in ui_do_but_SLI() not in uiActAsTextBut()
 	}
 
 	while(get_mbut() & L_MOUSE) BIF_wait_for_statechange();
@@ -3090,6 +3091,8 @@ static int ui_do_block(uiBlock *block, uiEvent *uevent)
 					if(inside || uevent->event!=LEFTMOUSE) {
 						butevent= ui_do_button(block, but, uevent);
 						
+						// if(but->type!=BLOCK) BIF_write_undo(but->str);
+
 						if(butevent) addqueue(block->winq, UI_BUT_EVENT, (short)butevent);
 
 						/* i doubt about the next line! */
@@ -3198,15 +3201,13 @@ static uiSaveUnder *ui_draw_but_tip(uiBut *but)
 
 	glColor4ub(0, 0, 0, 20);
 	
-	glBegin(GL_POLYGON);
-	gl_round_box(x1+3, y1-1, x2+1, y2-2, 2.0);
-	gl_round_box(x1+3, y1-2, x2+2, y2-2, 3.0);
+	gl_round_box(GL_POLYGON, x1+3, y1-1, x2+1, y2-2, 2.0);
+	gl_round_box(GL_POLYGON, x1+3, y1-2, x2+2, y2-2, 3.0);
 	
 	glColor4ub(0, 0, 0, 8);
 	
-	gl_round_box(x1+3, y1-3, x2+3, y2-3, 4.0);
-	gl_round_box(x1+3, y1-4, x2+4, y2-3, 5.0);
-	glEnd();
+	gl_round_box(GL_POLYGON, x1+3, y1-3, x2+3, y2-3, 4.0);
+	gl_round_box(GL_POLYGON, x1+3, y1-4, x2+4, y2-3, 5.0);
 
 	glDisable(GL_BLEND);