New scripts:

- hotkeys, obdatacopier and renameobjectbyblock, all from Jean-Michel Soler (jms);
- bevel_center by Loic Berthe, suggested for inclusion by jms;
- doc_browser, by Daniel Dunbar (Zr)

  Thanks to them for the new contributions!

  (I included doc_browser at 'Misc' because only users interested in script writing would actually use it, but it could also be under 'Help'.  Opinions?)

BPython related:
- Added scriptlink methods to object, lamp, camera and world.
- Object: added object.makeTrack and object.clearTrack (old track method).
- sys: made sys.exists(path) return 0 for not found; 1 for file, 2 for dir and -1 for neither.
- doc updates and fixes.
- made ONLOAD event work.  G.f's SCENESCRIPT bit was being zeroed in set_app_data.
- Blender: updated functions Load and Save to support the builtin importers and exporters besides .blend (dxf, videoscape, vrml 1.0, stl, ...)
- Draw: added mouse wheel events.
- Scene: added scene.play to play back animations (like ALT+A and SHIFT+ALT+A).  Makes a good counter, too, when the 'win' attribute is set to a space that doesn't "animate".

The scene.play() addition and the fix to ONLOAD scriptlinks is part of the work for a Blender demo mode.  It already works, but I'll still add support for Radiosity calculations and fix a thing in main(): it executes onload scripts too early (BIF_Init), giving funny results in alt+a animations and renderings when firing up Blender.  Loading after the program is up has no such problems.  When I finish I'll post examples of demo mode scripts.

source/blender/python/api2_2x/doc/BGL.py

@@ -23,16 +23,27 @@ Example::
   from Blender import Draw
   R = G = B = 0
   A = 1
-  instructions = "Hold mouse buttons to change the background color."
+  title = "Testing BGL  + Draw"
+  instructions = "Use mouse buttons or wheel to change the background color."
   quitting = " Press ESC or q to quit."
+  len1 = Draw.GetStringWidth(title)
+  len2 = Draw.GetStringWidth(instructions + quitting)
   #
   def show_win():
     glClearColor(R,G,B,A)                # define color used to clear buffers 
     glClear(GL_COLOR_BUFFER_BIT)         # use it to clear the color buffer
-    glColor3f(1,1,1)                     # change default color
+    glColor3f(0.35,0.18,0.92)            # define default color
+    glBegin(GL_POLYGON)                  # begin a vertex data list
+    glVertex2i(165, 158)
+    glVertex2i(252, 55)
+    glVertex2i(104, 128)
+    glEnd()
+    glColor3f(0.4,0.4,0.4)               # change default color
+    glRecti(40, 96, 60+len1, 113)
+    glColor3f(1,1,1)
     glRasterPos2i(50,100)                # move cursor to x = 50, y = 100
-    Draw.Text("Testing BGL  + Draw")     # draw this text there
-    glRasterPos2i(350,20)                # move cursor again
+    Draw.Text(title)                     # draw this text there
+    glRasterPos2i(350,40)                # move cursor again
     Draw.Text(instructions + quitting)   # draw another msg
     glBegin(GL_LINE_LOOP)                # begin a vertex-data list
     glVertex2i(46,92)
@@ -40,29 +51,29 @@ Example::
     glVertex2i(120,115)
     glVertex2i(46,115)
     glEnd()                              # close this list
-    glColor3f(0.35,0.18,0.92)            # change default color again
-    glBegin(GL_POLYGON)                  # another list, for a polygon
-    glVertex2i(315, 292)
-    glVertex2i(412, 200)
-    glVertex2i(264, 256)
-    glEnd()
-    Draw.Redraw(1)                       # make changes visible.
   #
-  def ev(evt, val):                     # this is a callback for Draw.Register()
+  def ev(evt, val):                      # event callback for Draw.Register()
     global R,G,B,A                       # ... it handles input events
     if evt == Draw.ESCKEY or evt == Draw.QKEY:
       Draw.Exit()                        # this quits the script
+    elif not val: return
     elif evt == Draw.LEFTMOUSE: R = 1 - R
     elif evt == Draw.MIDDLEMOUSE: G = 1 - G
     elif evt == Draw.RIGHTMOUSE: B = 1 - B
+    elif evt == Draw.WHEELUPMOUSE:
+      R += 0.1
+      if R > 1: R = 1
+    elif evt == Draw.WHEELDOWNMOUSE:
+      R -= 0.1
+      if R < 0: R = 0
     else:
-      Draw.Register(show_win, ev, None)
+      return                             # don't redraw if nothing changed
+    Draw.Redraw(1)                       # make changes visible.
   #
-    Draw.Register(show_win, ev, None)     # start the main loop
+  Draw.Register(show_win, ev, None)      # start the main loop
 
 @see: U{www.opengl.org}
 @see: U{nehe.gamedev.net}
-
 """
 
 def glAccum(op, value):