io_import_scene_mhx.py

        row = layout.row()
        row.label("IK Leg")
        row.operator("mhx.snap_ik_fk", text="Snap L IK Leg").data = "&LegIk_L 4 5 12"
        row.operator("mhx.snap_ik_fk", text="Snap R IK Leg").data = "&LegIk_R 20 21 28"
        row = layout.row()
        row.label("Ankle")
        row.operator("mhx.fix_ankle", text="Fix L Ankle").suffix = "_L"
        row.operator("mhx.fix_ankle", text="Fix R Ankle").suffix = "_R"
        row = layout.row()
        row.label("")
        row.operator("mhx.clear_ankle", text="Clear L Ankle").suffix = "_L"
        row.operator("mhx.clear_ankle", text="Clear R Ankle").suffix = "_R"

    def toggleButton(self, row, rig, prop, fk, ik):
        if rig[prop] > 0.5:
            row.operator("mhx.toggle_fk_ik", text="IK").toggle = prop + " 0" + fk + ik
        else:
            row.operator("mhx.toggle_fk_ik", text="FK").toggle = prop + " 1" + ik + fk
            

###################################################################################    
#
#    Posing panel
#
###################################################################################          
#
#    class MhxDriversPanel(bpy.types.Panel):
#

class MhxDriversPanel(bpy.types.Panel):
    bl_label = "MHX Drivers"
    bl_space_type = "VIEW_3D"
    bl_region_type = "UI"
    bl_options = {'DEFAULT_CLOSED'}
    
    @classmethod
    def poll(cls, context):
        return pollMhxRig(context.object)

    def draw(self, context):
        lProps = []
        rProps = []
        props = []
        plist = list(context.object.keys())
        plist.sort()
        for prop in plist:
            if prop[0] == '&':
                prop1 = prop[1:]
            else:
                continue
            if prop[-2:] == '_L':
                lProps.append((prop, prop1[:-2]))
            elif prop[-2:] == '_R':
                rProps.append((prop, prop1[:-2]))
            else:
                props.append((prop, prop1))
        ob = context.object
        layout = self.layout
        for (prop, pname) in props:
            layout.prop(ob, '["%s"]' % prop, text=pname)
        layout.label("Left")
        for (prop, pname) in lProps:
            layout.prop(ob, '["%s"]' % prop, text=pname)
        layout.label("Right")
        for (prop, pname) in rProps:
            layout.prop(ob, '["%s"]' % prop, text=pname)
        return

###################################################################################    
#
#    Visibility panel
#
###################################################################################          
#
#    class MhxVisibilityPanel(bpy.types.Panel):
#

class MhxVisibilityPanel(bpy.types.Panel):
    bl_label = "MHX Visibility"
    bl_space_type = "VIEW_3D"
    bl_region_type = "UI"
    bl_options = {'DEFAULT_CLOSED'}
    
    @classmethod
    def poll(cls, context):
        return pollMhxRig(context.object)

    def draw(self, context):
        ob = context.object
        layout = self.layout
        props = list(ob.keys())
        props.sort()
        for prop in props:
            if prop[0:4] == "Hide": 
                layout.prop(ob, '["%s"]' % prop)
        layout.separator()
        layout.operator("mhx.update_textures")
        layout.separator()
        layout.operator("mhx.add_hiders")
        layout.operator("mhx.remove_hiders")
        return

class VIEW3D_OT_MhxUpdateTexturesButton(bpy.types.Operator):
    bl_idname = "mhx.update_textures"
    bl_label = "Update"

    def execute(self, context):
        scn = context.scene
        for mat in bpy.data.materials:
            if mat.animation_data:
                try:
                    mat["MhxDriven"]
                except:
                    continue
                for driver in mat.animation_data.drivers:
                    prop = mat.path_resolve(driver.data_path)
                    value = driver.evaluate(scn.frame_current)
                    #print("Update %s[%d] = %s" % (driver.data_path, driver.array_index, value))
                    prop[driver.array_index] = value
        return{'FINISHED'}    
        
class VIEW3D_OT_MhxAddHidersButton(bpy.types.Operator):
    bl_idname = "mhx.add_hiders"
    bl_label = "Add Hide Property"

    def execute(self, context):
        rig = context.object
        for ob in context.scene.objects:
            if ob.select and ob != rig:
                prop = "Hide%s" % ob.name        
                rig[prop] = False        
                addHider(ob, "hide", rig, prop)
                addHider(ob, "hide_render", rig, prop)
        return{'FINISHED'}    
                
def addHider(ob, attr, rig, prop):
    fcu = ob.driver_add(attr)
    drv = fcu.driver
    drv.type = 'SCRIPTED'
    drv.expression = "x"
    drv.show_debug_info = True
    var = drv.variables.new()
    var.name = "x"
    targ = var.targets[0]
    targ.id = rig
    targ.data_path = '["%s"]' % prop
    return

class VIEW3D_OT_MhxRemoveHidersButton(bpy.types.Operator):
    bl_idname = "mhx.remove_hiders"
    bl_label = "Remove Hide Property"

    def execute(self, context):
        rig = context.object
        for ob in context.scene.objects:
            if ob.select and ob != rig:
                ob.driver_remove("hide")
                ob.driver_remove("hide_render")
                del rig["Hide%s" % ob.name]
        return{'FINISHED'}    
        
###################################################################################    
#
#    Layers panel
#
###################################################################################    

MhxLayers = [
    (( 0,    'Root', 'MhxRoot'),
     ( 8,    'Face', 'MhxFace')),
    (( 9,    'Tweak', 'MhxTweak'),
     (10,    'Head', 'MhxHead')),
    (( 1,    'FK Spine', 'MhxFKSpine'),
     (17,    'IK Spine', 'MhxIKSpine')),
    ((13,    'Inv FK Spine', 'MhxInvFKSpine'),
     (16,    'Clothes', 'MhxClothes')),
    ('Left', 'Right'),
    (( 2,    'IK Arm', 'MhxIKArm'),
     (18,    'IK Arm', 'MhxIKArm')),
    (( 3,    'FK Arm', 'MhxFKArm'),
     (19,    'FK Arm', 'MhxFKArm')),
    (( 4,    'IK Leg', 'MhxIKLeg'),
     (20,    'IK Leg', 'MhxIKLeg')),
    (( 5,    'FK Leg', 'MhxFKLeg'),
     (21,    'FK Leg', 'MhxFKLeg')),
    ((12,    'Extra', 'MhxExtra'),
     (28,    'Extra', 'MhxExtra')),
    (( 6,    'Fingers', 'MhxFingers'),
     (22,    'Fingers', 'MhxFingers')),
    (( 7,    'Links', 'MhxLinks'),
     (23,    'Links', 'MhxLinks')),
    ((11,    'Palm', 'MhxPalm'),
     (27,    'Palm', 'MhxPalm')),
]

#
#    class MhxLayersPanel(bpy.types.Panel):
#

class MhxLayersPanel(bpy.types.Panel):
    bl_label = "MHX Layers"
    bl_space_type = "VIEW_3D"
    bl_region_type = "UI"
    #bl_options = {'DEFAULT_CLOSED'}
    
    @classmethod
    def poll(cls, context):
        return pollMhxRig(context.object)

    def draw(self, context):
        layout = self.layout
        layout.operator("mhx.pose_enable_all_layers")
        layout.operator("mhx.pose_disable_all_layers")
        amt = context.object.data
        for (left,right) in MhxLayers:
            row = layout.row()
            if type(left) == str:
                row.label(left)
                row.label(right)
            else:
                for (n, name, prop) in [left,right]:
                    row.prop(amt, "layers", index=n, toggle=True, text=name)
        return

class VIEW3D_OT_MhxEnableAllLayersButton(bpy.types.Operator):
    bl_idname = "mhx.pose_enable_all_layers"
    bl_label = "Enable all layers"

    def execute(self, context):
        rig = getMhxRig(context.object)
        for (left,right) in MhxLayers:
            if type(left) != str:
                for (n, name, prop) in [left,right]:
                    rig.data.layers[n] = True
        return{'FINISHED'}    

class VIEW3D_OT_MhxDisableAllLayersButton(bpy.types.Operator):
    bl_idname = "mhx.pose_disable_all_layers"
    bl_label = "Disable all layers"

    def execute(self, context):
        rig = getMhxRig(context.object)
        layers = 32*[False]
        pb = context.active_pose_bone
        if pb:
            for n in range(32):
                if pb.bone.layers[n]:
                    layers[n] = True
                    break
        else:
            layers[0] = True
        rig.data.layers = layers            
        return{'FINISHED'}    
                
###################################################################################    
#
#    Common functions
#
###################################################################################    
#
#   pollMhxRig(ob):
#   getMhxRig(ob):
#

def pollMhxRig(ob):
    try:
        return (ob["MhxRig"] == "MHX")
    except:
        return False
        
def getMhxRig(ob):
    if ob.type == 'ARMATURE':
        rig = ob
    elif ob.type == 'MESH':
        rig = ob.parent
    else:
        return None
    try:        
        if (rig["MhxRig"] == "MHX"):
            return rig
        else:
            return None
    except:
        return None
    
        
#
#    setInterpolation(rig):
#

def setInterpolation(rig):
    if not rig.animation_data:
        return
    act = rig.animation_data.action
    if not act:
        return
    for fcu in act.fcurves:
        for pt in fcu.keyframe_points:
            pt.interpolation = 'LINEAR'
        fcu.extrapolation = 'CONSTANT'
    return
    
###################################################################################    
#
#    initialize and register
#
###################################################################################    

def menu_func(self, context):
    self.layout.operator(ImportMhx.bl_idname, text="MakeHuman (.mhx)...")

def register():
    bpy.utils.register_module(__name__)
    bpy.types.INFO_MT_file_import.append(menu_func)

def unregister():
    try:
        bpy.utils.unregister_module(__name__)
    except:
        pass
    try:
        bpy.types.INFO_MT_file_import.remove(menu_func)
    except:
        pass

if __name__ == "__main__":
    unregister()
    register()