auto_walk/panels.py

import bpy
from . import fn

class UAC_PT_walk_cycle_anim_panel(bpy.types.Panel):
    bl_space_type = "VIEW_3D"
    bl_region_type = "UI"
    bl_category = "Anim"
    bl_label = "Walk Cycle anim"

    def draw(self, context):
        layout = self.layout
        if not context.scene.anim_cycle_settings.path_to_follow:
            layout.operator('anim.create_curve_path', text='Create Curve at Root Position', icon='CURVE_BEZCURVE')
        #-# path and ground objects
        layout.prop_search(context.scene.anim_cycle_settings, "path_to_follow", context.scene, "objects")
        layout.prop_search(context.scene.anim_cycle_settings, "gnd", context.scene, "objects")

        
        prefs = fn.get_addon_prefs()
        ob = context.object
        
        # Determine if already has a constraint (a bit too much condition in a panel...)
        constrained = False
        if ob and ob.type == 'ARMATURE':
            pb = ob.pose.bones.get(prefs.tgt_bone)
            if pb:
                follow = pb.constraints.get('Follow Path')
                if follow and follow.target:
                    layout.label(text=f'{pb.name} -> {follow.target.name}', icon='CON_FOLLOWPATH')
                    constrained = True

        if not constrained:
            ## Créer automatiquement le follow path TODO et l'anim de base
            layout.operator('anim.create_follow_path', text='Add follow path constraint', icon='CON_FOLLOWPATH')

        
        layout.operator('anim.snap_curve_to_ground', text='Snap curve to ground', icon='SNAP_ON')


        # row=layout.row()
        layout.prop(context.scene.anim_cycle_settings, "start_frame", text='Start')
        layout.operator('anim.animate_path', text='Animate Path (select foot)', icon='ANIM')

        row=layout.row()
        row.operator('anim.adjust_animation_length', icon='MOD_TIME')

        ## Bake cycle (on selected)
        row=layout.row()
        row.prop(context.scene.anim_cycle_settings, "linear", text='Linear')
        row.prop(context.scene.anim_cycle_settings, "expand_on_selected_bones")
        layout.operator('anim.bake_cycle_and_step', text='Bake key and step path', icon='SHAPEKEY_DATA')
        
        # Pin feet
        layout.operator('anim.pin_feets', text='Pin feets', icon='PINNED')

        

class UAC_PT_anim_tools_panel(bpy.types.Panel):
    bl_space_type = "VIEW_3D"
    bl_region_type = "UI"
    bl_category = "Anim"
    bl_label = "Tools"

    def draw(self, context):
        layout = self.layout
        layout.operator('anim.contact_to_ground', text='Ground selected feet', icon='SNAP_OFF')
        row = layout.row()
        row.operator('anim.world_space_copy', text='Copy Pose', icon='COPYDOWN')
        row.operator('anim.world_space_paste', text='Paste', icon='PASTEDOWN')
        row = layout.row()
        row.operator('anim.world_space_paste_next', text='Paste Prev', icon='PASTEDOWN').prev = True
        row.operator('anim.world_space_paste_next', text='Paste Next', icon='PASTEDOWN').prev = False



classes=(
UAC_PT_walk_cycle_anim_panel,
UAC_PT_anim_tools_panel,
)

def register():
    for cls in classes:
        bpy.utils.register_class(cls)

def unregister():
    for cls in reversed(classes):
        bpy.utils.unregister_class(cls)