gp_toolbox/UI_tools.py

# from . import addon_updater_ops
from .utils import (get_addon_prefs,
                    anim_status,
                    gp_modifier_status,
                    )
import bpy
from pathlib import Path
from bpy.types import Panel


## UI in properties

### dataprop_panel not used --> transferred to sidebar
""" 
class GPTB_PT_dataprop_panel(Panel):
    bl_space_type = 'PROPERTIES'
    bl_region_type = 'WINDOW'
    # bl_space_type = 'VIEW_3D'
    # bl_region_type = 'UI'
    # bl_category = "Tool"
    # bl_idname = "ADDONID_PT_panel_name"# identifier, if ommited, takes the name of the class.
    bl_label = "Pseudo color"# title
    bl_parent_id = "DATA_PT_grease_pencil_layers"#subpanel of this ID
    bl_options = {'DEFAULT_CLOSED'}

    def draw(self, context):
        layout = self.layout
        layout.use_property_split = True
        settings = context.scene.gptoolprops

        col = layout.column(align = True)
        row = col.split(align=False, factor=0.63)
        row.prop(settings, 'autotint_offset')
        row.prop(settings, 'autotint_namespace')

        col.operator("gp.auto_tint_gp_layers", icon = "COLOR").reset = False
        col.operator("gp.auto_tint_gp_layers", text = "Reset tint", icon = "COLOR").reset = True
 """

## UI in Gpencil sidebar menu

class GPTB_PT_sidebar_panel(Panel):
    bl_label = "GP Toolbox"
    bl_space_type = "VIEW_3D"
    bl_region_type = "UI"
    bl_category = "Gpencil"

    def draw(self, context):
        layout = self.layout
        # layout.use_property_split = True
        prefs = get_addon_prefs()
        rd = context.scene.render
        # check for update
        # addon_updater_ops.check_for_update_background()

        # layout.label(text='View options:')
        col = layout.column()
        
        ## flip X cam
        # layout.label(text='! Flipped !')

        row = col.row(align=True)
        row.prop(context.scene.tool_settings, 'gpencil_stroke_placement_view3d', text='')
        row.prop(context.scene.tool_settings.gpencil_sculpt, 'lock_axis', text='')

        row = col.row(align=True)

        row.operator('view3d.camera_mirror_flipx', text = 'Mirror Flip', icon = 'MOD_MIRROR')# ARROW_LEFTRIGHT
        if context.scene.camera and context.scene.camera.scale.x < 0:
            row.label(text='',icon='LOOP_BACK')

        ## draw/manipulation camera
        if context.scene.camera and context.scene.camera.name.startswith(('draw', 'obj')):
            row = col.row(align=True)
            row.operator('gp.draw_cam_switch', text = 'Main cam', icon = 'OUTLINER_OB_CAMERA')
            row.label(text='',icon='LOOP_BACK')
            if context.scene.camera.name.startswith('draw'):
                col.operator('gp.reset_cam_rot', text='reset rotation')#.swapmethod ? = CAM
            else:
                col.operator('gp.set_view_as_cam', text='set view')#.swapmethod ? = CAM

        else:
            row = col.row(align=True)
            row.operator('gp.draw_cam_switch', text = 'Draw cam', icon = 'CON_CAMERASOLVER').cam_mode = 'draw'
            row.operator('gp.draw_cam_switch', text = 'Object cam', icon = 'CON_CAMERASOLVER').cam_mode = 'object'
            col.label(text='In main camera', icon = 'OUTLINER_OB_CAMERA')

        # layout.operator('gp.overlay_presets', text = 'Toggle overlays', icon = 'OVERLAY')

        if context.scene.camera:
            row = layout.row(align=True)# .split(factor=0.5)
            row.label(text='Passepartout')
            if context.scene.camera.name == 'draw_cam':
                row.prop(context.scene.gptoolprops, 'drawcam_passepartout', text='', icon ='OBJECT_HIDDEN') 
            else:
                row.prop(context.scene.camera.data, 'show_passepartout', text='', icon ='OBJECT_HIDDEN')
            row.prop(context.scene.camera.data, 'passepartout_alpha', text='')
            # row = layout.row(align=True)
            # row.operator('view3d.view_camera_frame_fit', text = 'Custom fit', icon = 'ZOOM_PREVIOUS') # FULLSCREEN_EXIT

            row = layout.row(align=True)
            row.operator('view3d.zoom_camera_1_to_1', text = 'Zoom 1:1', icon = 'ZOOM_PREVIOUS') # FULLSCREEN_EXIT
            row.operator('view3d.view_center_camera', text = 'Zoom fit', icon = 'FULLSCREEN_ENTER')

            ## background images/videos
            if context.scene.camera.data.background_images:
                layout.separator()
                icon_bg = 'RESTRICT_VIEW_OFF' if context.scene.camera.data.show_background_images else 'RESTRICT_VIEW_ON'# IMAGE_BACKGROUND#IMAGE_PLANE
                # icon_bg = 'TRIA_DOWN' if context.scene.camera.data.show_background_images else 'IMAGE_BACKGROUND'
                box = layout.box()
                box.prop(context.scene.camera.data, 'show_background_images', text='Ref in cam', icon=icon_bg)
                if context.scene.camera.data.show_background_images:
                    # box = layout.box()
                    for bg_img in context.scene.camera.data.background_images:
                        if bg_img.source == 'IMAGE' and bg_img.image:
                            row = box.row(align=True)
                            row.prop(bg_img, 'show_background_image', text='', icon='IMAGE_RGB')
                            row.prop(bg_img, 'alpha', text=bg_img.image.name) # options={'HIDDEN'}
                            # row.label(icon='IMAGE_RGB')
                            # icon = 'HIDE_OFF' if bg_img.show_background_image else 'HIDE_ON'
                            # row.prop(bg_img, 'show_background_image', text='', icon=icon)
                        
                        if bg_img.source == 'MOVIE_CLIP' and bg_img.clip:
                            row = box.row(align=True)
                            row.prop(bg_img, 'show_background_image', text='', icon='FILE_MOVIE')
                            row.prop(bg_img, 'alpha', text=bg_img.clip.name) # options={'HIDDEN'}
                            # row.label(icon='FILE_MOVIE')
                            # icon = 'HIDE_OFF' if bg_img.show_background_image else 'HIDE_ON'
                            # row.prop(bg_img, 'show_background_image', text='', icon=icon)
            
        else:
            layout.label(text='No camera !', icon = 'ERROR')
        
        ## Straight line ops from official greasepencil_tools addon if enabled.
        # if any(x in context.preferences.addons.keys() for x in ('greasepencil_tools', 'greasepencil-addon')): # check enabled addons
        if hasattr(bpy.types, 'GP_OT_straight_stroke'): # check if operator exists : bpy.ops.gp.straight_stroke.idname()
            layout.operator(bpy.types.GP_OT_straight_stroke.bl_idname, icon ="CURVE_PATH")

        ## Options
        col = layout.column()
        col.label(text = 'Options:')

        ## Kf Jump filter
        col.prop(context.scene.gptoolprops, 'keyframe_type', text='Jump On') # Keyframe Jump
        # col.prop(context.space_data.overlay, 'use_gpencil_onion_skin') # not often used
        
        if context.object and context.object.type == 'GREASEPENCIL':
            # col.prop(context.object.data, 'use_autolock_layers') # not often used
            col.prop(context.object, 'show_in_front') # text='In Front' 

            ## rename datablock temporary layout
            if context.object.name != context.object.data.name:
                box = col.box()
                box.label(text='different name for object and data:', icon='INFO')
                row = box.row(align=False)
                row.operator('gp.rename_data_from_obj').rename_all = False
                row.operator('gp.rename_data_from_obj', text='Rename all').rename_all = True
            
            ## Check base palette
            if prefs.warn_base_palette and prefs.palette_path:
                if not all(x in [m.name for m in context.object.data.materials if m] for x in ("line", "invisible")):
                    box = col.box()
                    box.label(text='Missing base material setup', icon='INFO')
                    box.operator('gp.load_default_palette')

        else:
            col.label(text='No GP object selected')
        

        ## Gpv3: not more edit line (use Curve lines)
        # col.prop(context.scene.gptoolprops, 'edit_lines_opacity')

        # Mention update as notice
        # addon_updater_ops.update_notice_box_ui(self, context)

        # row = layout.row(align=False)
        # row.label(text='arrow choice')
        # row.operator("my_operator.multi_op", text='', icon='TRIA_LEFT').left = 1
        # row.operator("my_operator.multi_op", text='', icon='TRIA_RIGHT').left = 0

class GPTB_PT_anim_manager(Panel):
    bl_label = "Animation Manager"
    bl_space_type = "VIEW_3D"
    bl_region_type = "UI"
    bl_category = "Gpencil"
    bl_parent_id = "GPTB_PT_sidebar_panel"
    bl_options = {'DEFAULT_CLOSED'}
    
    # def draw_header(self,context):
    #     self.layout.prop(context.scene.camera.data, "show_background_images", text="")

    def get_object_by_types(self, context) -> dict:
        # import time
        # t0 = time.perf_counter()

        # objs = [o for o in context.scene.objects if o.type not in ('GREASEPENCIL', 'CAMERA')]
        # gps = [o for o in context.scene.objects if o.type == 'GREASEPENCIL']
        # cams = [o for o in context.scene.objects if o.type == 'CAMERA']
        objs = []
        gps = []
        cams = []
        for o in context.scene.objects:
            if o.type not in ('GREASEPENCIL', 'CAMERA'):
                objs.append(o)
            elif o.type == 'GREASEPENCIL':
                gps.append(o)
            elif o.type == 'CAMERA':
                cams.append(o)

        # print(f'{time.perf_counter() - t0:.8f}s')

        return {'OBJECT': objs, 'GREASEPENCIL': gps, 'CAMERA': cams}


    def draw(self, context):
        layout = self.layout
        layout.use_property_split = True
        col = layout.column()
        ## Animation enable disable anim (shift click to select) OP_helpers.GPTB_OT_toggle_mute_animation

        obj_types = self.get_object_by_types(context)

        col.operator('gp.list_disabled_anims')

        ## Show Enable / Disable anims
        for cat, cat_type in [('Obj anims:', 'OBJECT'), ('Cam anims:', 'CAMERA'), ('Gp anims:', 'GREASEPENCIL')]:
            on_icon, off_icon = anim_status(obj_types[cat_type])

            subcol = col.column()
            # subcol.alert = off_icon == 'LAYER_ACTIVE' # Turn red
            row = subcol.row(align=True)
            row.label(text=cat)

            ops = row.operator('gp.toggle_mute_animation', text='ON', icon=on_icon)
            ops.mode = cat_type
            ops.mute = False

            ops = row.operator('gp.toggle_mute_animation', text='OFF', icon=off_icon)
            ops.mode = cat_type
            ops.mute = True

        ## GP modifiers
        subcol = col.column()

        row = subcol.row(align=True)
        row.label(text='Gp modifiers:')
        on_icon, off_icon = gp_modifier_status(obj_types['GREASEPENCIL'])
        # subcol.alert = off_icon == 'LAYER_ACTIVE' # Turn red
        row.operator('gp.toggle_hide_gp_modifier', text='ON', icon=on_icon).show = True
        row.operator('gp.toggle_hide_gp_modifier', text='OFF', icon=off_icon).show = False

        ## Step Select Frames
        col.operator('gptb.step_select_frames')

        ## Follow curve path
        col = col.column()
        row = col.row(align=True)
        
        if context.object:
            if context.object.type == 'CURVE' and context.mode in ('OBJECT', 'EDIT_CURVE'):
                row.operator('object.object_from_curve', text='Back To Object', icon='LOOP_BACK')
        
            elif (follow_const := context.object.constraints.get('Follow Path')) and follow_const.target:
                row.operator('object.edit_curve', text='Edit Curve', icon='OUTLINER_DATA_CURVE')
                row.operator('object.remove_follow_path', text='', icon='X')
                col.label(text=f'{context.object.name} -> {follow_const.target.name}', icon='CON_FOLLOWPATH')
                if follow_const.use_fixed_location:
                    col.prop(follow_const, 'offset_factor')
                else:
                    col.prop(follow_const, 'offset')                
                if context.object.location.length != 0: # context.object.location[:] != (0,0,0):
                    col.operator('object.location_clear', text='Offseted Location! Reset', icon='ERROR')
                # ? Check if object location is animated ? (can be intentional...)

            else:
                col.operator('object.create_follow_path_curve', text='Create Follow Curve', icon='CURVE_BEZCURVE')


        ## This can go in an extra category...
        col = layout.column()
        col.use_property_split = False
        text, icon = ('Cursor Follow On', 'PIVOT_CURSOR') if context.scene.gptoolprops.cursor_follow else ('Cursor Follow Off', 'CURSOR')
        col.prop(context.scene.gptoolprops, 'cursor_follow', text=text, icon=icon)
        

class GPTB_PT_toolbox_playblast(Panel):
    bl_label = "Playblast"
    bl_space_type = "VIEW_3D"
    bl_region_type = "UI"
    bl_category = "Gpencil"
    bl_parent_id = "GPTB_PT_sidebar_panel"
    bl_options = {'DEFAULT_CLOSED'}

    def draw(self, context):
        layout = self.layout
        rd = context.scene.render
        row = layout.row(align=False) # split(factor=0.6)
        percent = context.scene.gptoolprops.resolution_percentage
        row.label(text = f'{rd.resolution_x * percent // 100} x {rd.resolution_y * percent // 100}')
        row.prop(context.scene.gptoolprops, 'resolution_percentage', text='')
        # row.prop(rd, 'resolution_percentage', text='') # real percent scene percentage

        row = layout.row(align=True)
        row.operator('render.thread_playblast', text = 'Playblast', icon = 'RENDER_ANIMATION')# non blocking background render playblast
        # row.operator('render.playblast_anim', text = 'Playblast', icon = 'RENDER_ANIMATION').use_view = False # old (but robust) blocking playblast
        row.operator('render.playblast_anim', text = 'Viewport').use_view = True

class GPTB_PT_tint_layers(Panel):
    bl_label = "Tint Layers"
    bl_space_type = "VIEW_3D"
    bl_region_type = "UI"
    bl_category = "Gpencil"
    bl_parent_id = "GPTB_PT_sidebar_panel"
    bl_options = {'DEFAULT_CLOSED'}

    # def draw_header(self,context):
    #     self.layout.prop(context.scene.camera.data, "show_background_images", text="")

    def draw(self, context):
        layout = self.layout
        layout.use_property_split = True
        ## pseudo color layers
        # layout.separator()
        col = layout.column(align = True)
        # row = col.split(align=False, factor=0.63)
        # row = col.row()
        col.prop(context.scene.gptoolprops, 'autotint_offset', text='Hue Offset')
        col.prop(context.scene.gptoolprops, 'autotint_namespace')

        col.operator("gp.auto_tint_gp_layers", icon = "COLOR").reset = False
        col.operator("gp.auto_tint_gp_layers", text = "Reset tint", icon = "COLOR").reset = True


class GPTB_PT_checker(Panel):
    bl_label = "Checker"
    bl_space_type = "VIEW_3D"
    bl_region_type = "UI"
    bl_category = "Gpencil"
    bl_parent_id = "GPTB_PT_sidebar_panel"
    bl_options = {'DEFAULT_CLOSED'}

    # def draw_header(self,context):
    #     self.layout.prop(context.scene.camera.data, "show_background_images", text="")

    def draw(self, context):
        layout = self.layout
        col = layout.column()
        row = col.row(align=True)
        ## realign / reproject
        row.operator('gp.realign', icon='AXIS_FRONT')
        ## move in depth
        row.operator('object.depth_proportional_move', text='Depth move', icon='TRANSFORM_ORIGINS')

        ## col.operator('gp.batch_reproject_all_frames') # text=Batch Reproject # added to context menu
        ## check drawing alignement
        col.operator('gp.check_canvas_alignement', icon='DRIVER_ROTATIONAL_DIFFERENCE')

        ## File checker
        row = col.row(align=True)
        row.operator('gp.file_checker', text = 'Check file', icon = 'SCENE_DATA')
        row.operator('gp.links_checker', text = 'Check links', icon = 'UNLINKED')


class GPTB_PT_color(Panel):
    bl_label = "Color"
    bl_space_type = "VIEW_3D"
    bl_region_type = "UI"
    bl_category = "Gpencil"
    bl_parent_id = "GPTB_PT_sidebar_panel"
    bl_options = {'DEFAULT_CLOSED'}

    def draw(self, context):
        layout = self.layout
        col = layout.column()
        ## Create empty frame on layer
        
        # Material panel as a pop-up (would work if palette dir is separated)
        # col.operator("wm.call_panel", text="Link Materials Palette", icon='COLOR').name = "GPTB_PT_palettes_linker_ui"
        col.operator('gp.create_empty_frames', icon='DECORATE_KEYFRAME')
        # col.operator("wm.call_panel", text="Link Material Palette", icon='COLOR').name = "GPTB_PT_palettes_list_popup"

""" # unused : added in Animation Manager
class GPTB_PT_extra(Panel):
    bl_label = "Extra"
    bl_space_type = "VIEW_3D"
    bl_region_type = "UI"
    bl_category = "Gpencil"
    bl_parent_id = "GPTB_PT_sidebar_panel"
    bl_options = {'DEFAULT_CLOSED'}

    def draw(self, context):
        layout = self.layout
        col = layout.column()
        text, icon = ('Cursor Follow On', 'PIVOT_CURSOR') if context.scene.gptoolprops.cursor_follow else ('Cursor Follow Off', 'CURSOR')
        col.prop(context.scene.gptoolprops, 'cursor_follow', text=text, icon=icon)
 """

"""
## unused -- (integrated in sidebar_panel)
class GPTB_PT_cam_ref_panel(Panel):
    bl_label = "Background imgs"
    bl_space_type = "VIEW_3D"
    bl_region_type = "UI"
    bl_category = "Gpencil"
    bl_parent_id = "GPTB_PT_sidebar_panel"

    @classmethod
    def poll(cls, context):
        return context.scene.camera
    
    def draw_header(self,context):
        self.layout.prop(context.scene.camera.data, "show_background_images", text="")

    def draw(self, context):
        layout = self.layout
        layout.use_property_split = True
        
        if context.scene.camera.data.show_background_images:
            for bg_img in context.scene.camera.data.background_images:
                if bg_img.image:    
                    row = layout.row(align=False)
                    row.label(text=bg_img.image.name, icon='IMAGE_RGB')
                    row.prop(bg_img, 'show_background_image', text='')# options={'HIDDEN'}
 """

def palette_manager_menu(self, context):
    """Palette menu to append in existing menu"""
    # GPENCIL_MT_material_context_menu
    layout = self.layout
    # {'EDIT_GREASE_PENCIL', 'PAINT_GREASE_PENCIL','SCULPT_GREASE_PENCIL','WEIGHT_GREASE_PENCIL', 'VERTEX_GPENCIL'}
    layout.separator()
    prefs = get_addon_prefs()

    layout.operator("gp.copy_active_to_selected_palette", text='Append Materials To Selected', icon='MATERIAL')
    layout.operator("gp.clean_material_stack", text='Clean material Stack', icon='NODE_MATERIAL')
    layout.separator()
    layout.operator("wm.call_panel", text="Pop Palette Linker", icon='COLOR').name = "GPTB_PT_palettes_list_popup"
    layout.operator("gp.load_blend_palette", text='Load Mats From Single Blend', icon='RESTRICT_COLOR_ON').filepath = prefs.palette_path
    layout.separator()
    layout.operator("gp.load_palette", text='Load json Palette', icon='IMPORT').filepath = prefs.palette_path
    layout.operator("gp.save_palette", text='Save json Palette', icon='EXPORT').filepath = prefs.palette_path
    layout.separator()
    layout.operator("gp.move_material_to_layer", text='Move Material To Layer', icon='MATERIAL')


def expose_use_channel_color_pref(self, context):
    # add in GreasePencilLayerDisplayPanel (gp dopesheet View > Display)
    layout = self.layout
    layout.use_property_split = True
    layout.use_property_decorate = False
    layout.label(text='Use Channel Colors (User preferences):')
    layout.prop(context.preferences.edit, 'use_anim_channel_group_colors')


#--- Palette Linker Panels

def palettes_path_ui(self, context):
    layout = self.layout
    scn = bpy.context.scene
    pl_prop = scn.bl_palettes_props
    col= layout.column()
    prefs = get_addon_prefs()
    ## Here put the path thing (only to use a non-library)

    # maybe in submenu...
    row = col.row()
    # expand_icon = 'TRIA_DOWN' if pl_prop.show_path else 'TRIA_RIGHT'
    # row.prop(pl_prop, 'show_path', text='', icon=expand_icon, emboss=False)
    row.prop(pl_prop, 'use_project_path', text='Use Project Palettes')
    # row.operator("gp.palettes_reload_blends", icon="FILE_REFRESH", text="")

    if pl_prop.use_project_path:
        ## gp toolbox addon prefs path
        if not prefs.palette_path:
            col.label(text='GP toolbox Palette Directory Needed', icon='INFO')
            col.operator('gptb.open_addon_prefs', icon='PREFERENCES')

        # if not prefs.palette_path: # or pl_prop.show_path
        #     col.prop(prefs, 'palette_path', text='Project Dir')
            #col.label(text='(saved with preferences)')
    else:
        ## local path 
        if not pl_prop.custom_dir:
            col.label(text='Need to specify directory')
        col.prop(pl_prop, 'custom_dir', text='Custom Dir')
        # if not pl_prop.custom_dir or pl_prop.show_path:
        #     col.prop(pl_prop, 'custom_dir', text='Custom Dir')
    
    # col.operator('gptb.palette_version_update', text='Update Palette Version') # when update is ready


def palettes_lists_ui(self, context, popup=False):
    layout = self.layout
    scn = bpy.context.scene
    pl_prop = scn.bl_palettes_props
    col= layout.column()
    row=col.row()
    # refresh button
    txt = 'Project Palettes' if pl_prop.use_project_path else 'Custom Palettes'
    row.label(text=txt)
    row.operator("gp.palettes_reload_blends", icon="FILE_REFRESH", text="")

    col= layout.column()
    row = col.row()

    if popup:
        blends_minimum_row = 5
        objects_minimum_row = 25
    else:
        blends_minimum_row = 2
        objects_minimum_row = 4
    row.template_list("GPTB_UL_blend_list", "", pl_prop, "blends", pl_prop, "bl_idx", 
        rows=blends_minimum_row)
    # side panel
    # subcol = row.column(align=True)
    # subcol.operator("gp.palettes_reload_blends", icon="FILE_REFRESH", text="")
    
    ## Show object UI list only once blend Uilist is filled ?
    if not len(pl_prop.blends) or (len(pl_prop.blends) == 1 and not bool(pl_prop.blends[0].blend_path)):
        col.label(text='Select blend refresh available objects')

    row = col.row()
    row.template_list("GPTB_UL_object_list", "", pl_prop, "objects", pl_prop, "ob_idx",
        rows=objects_minimum_row)

    ## Show link button in the border of the UI list ?
    # col.prop(pl_prop, 'import_type')
    split = col.split(align=True, factor=0.4)
    split.prop(pl_prop, 'import_type', text='')

    split.enabled = len(pl_prop.objects) and bool(pl_prop.objects[pl_prop.ob_idx].path)
    split.operator('gp.import_obj_palette', text='Palette')

    # button to launch link with combined props (active only if the two items are valids)
    # str(Path(self.blends) / 'Object' / self.objects


class GPTB_PT_palettes_linker_main_ui(Panel):
    bl_space_type = 'TOPBAR' # dummy
    bl_region_type = 'HEADER'
    # bl_space_type = "VIEW_3D"
    # bl_region_type = "UI"
    # bl_category = "Gpencil"
    bl_label = "Palettes Mat Linker"

    def draw(self, context):
        layout = self.layout
        ## link button for tests
        # layout.operator('gp.import_obj_palette', text='Palette')

        # Subpanel are appended to this main UI

        ## Or just as One fat panel
        # palettes_path_ui(self, context)
        # palettes_lists_ui(self, context)

class GPTB_PT_palettes_path_ui(Panel):
    bl_space_type = "VIEW_3D"
    bl_region_type = "UI"
    bl_category = "Gpencil"
    bl_label = "Palettes Source" # Source Path
    # bl_parent_id = "GPTB_PT_palettes_linker_main_ui"
    bl_parent_id = "GPTB_PT_color"
    bl_options = {'DEFAULT_CLOSED'}

    def draw(self, context):
        layout = self.layout
        palettes_path_ui(self, context)
        # layout.label()

# pop-up version of object lists
class GPTB_PT_palettes_list_popup(Panel):
    bl_space_type = 'TOPBAR' # dummy
    bl_region_type = 'HEADER'
    bl_category = "Gpencil"
    bl_label = "Palettes Lists"
    bl_ui_units_x = 18

    def draw(self, context):
        palettes_lists_ui(self, context, popup=True)

class GPTB_PT_palettes_list_ui(Panel):
    bl_space_type = "VIEW_3D"
    bl_region_type = "UI"
    bl_category = "Gpencil"
    bl_label = "Palettes Lists"
    bl_parent_id = "GPTB_PT_color"
    bl_options = {'DEFAULT_CLOSED'}

    def draw_header(self, context):
        layout = self.layout
        # layout.label(text="My Select Panel")
        layout.operator("wm.call_panel", text="", icon='COLOR').name = "GPTB_PT_palettes_list_popup"

    def draw(self, context):
        palettes_lists_ui(self, context, popup=False)


## bl 3+ UI
def asset_browser_ui(self, context):
    '''Only shows in blender >= 3.0.0'''
    
    layout = self.layout
    asset_file_handle = context.asset_file_handle
    if asset_file_handle is None:
        # layout.label(text="No asset selected", icon='INFO')
        layout.label(text='No object/material selected', icon='INFO')
        return
    if asset_file_handle.id_type not in ('OBJECT', 'MATERIAL'):
        layout.label(text='No object/material selected', icon='INFO')
        return

    layout.use_property_split = True
    layout.use_property_decorate = False
    
    asset_library_ref = context.asset_library_ref
    ## Path to blend
    asset_lib_path = bpy.types.AssetHandle.get_full_library_path(asset_file_handle, asset_library_ref)
    path_to_obj = Path(asset_lib_path) / 'Objects' / asset_file_handle.name

    ## respect header choice ?
    ## import_type in (LINK, APPEND, APPEND_REUSE)
    imp_type = context.space_data.params.import_type
    if imp_type == 'APPEND':
        imp_txt = 'Append'
    elif imp_type == 'APPEND_REUSE':
        imp_txt = 'Append (Reuse)'
    else:
        imp_txt = 'Link'

    if asset_file_handle.id_type == 'MATERIAL':
        layout.label(text=f'From Mat: {asset_file_handle.name}')
    if asset_file_handle.id_type == 'OBJECT':
        layout.label(text=f'From Obj: {asset_file_handle.name}')
        layout.label(text=f'{imp_txt} Materials To GP Object')
        layout.operator('gp.palette_linker', text=f'{imp_txt} Materials To GP Object') ## ops

    # layout.label(text='Link Materials to GP Object')



# Put back pop-over UI for Grease Pencil stroke interpolation tools native pop hover panel from 2.92
class GPTB_PT_tools_grease_pencil_interpolate(Panel):
    bl_space_type = 'VIEW_3D'
    bl_region_type = 'HEADER'
    bl_label = "Interpolate"

    @classmethod
    def poll(cls, context):
        if context.gpencil_data is None:
            return False

        gpd = context.gpencil_data
        valid_mode = bool(gpd.use_stroke_edit_mode or gpd.is_stroke_paint_mode)
        return bool(context.editable_gpencil_strokes) and valid_mode

    def draw(self, context):
        layout = self.layout
        layout.use_property_split = True
        # settings = context.tool_settings.gpencil_interpolate # old 2.92 global settings
        ## access active tool settings
        # settings = context.workspace.tools[0].operator_properties('gpencil.interpolate')
        settings = context.workspace.tools.from_space_view3d_mode('PAINT_GREASE_PENCIL').operator_properties('gpencil.interpolate')

        ## custom curve access (still in gp interpolate tools)
        interpolate_settings = context.tool_settings.gpencil_interpolate
        # ex : interpolate_settings.interpolation_curve.curves[0].points[1].location


        col = layout.column(align=True)
        col.label(text="Interpolate Strokes")
        col.operator("gpencil.interpolate", text="Interpolate")
        col.operator("gpencil.interpolate_sequence", text="Sequence")
        col.operator("gpencil.interpolate_reverse", text="Remove Breakdowns")

        col = layout.column(align=True)
        col.label(text="Options:")
        # col.prop(settings, "interpolate_all_layers") # now the enum "layers"
        gpd = context.gpencil_data
        if gpd.use_stroke_edit_mode:
            col.prop(settings, "interpolate_selected_only")
        col.prop(settings, "layers")
        col.prop(settings, "flip")
        col.prop(settings, "smooth_factor")
        col.prop(settings, "smooth_steps")


        '''## Sequence Options
        seq_settings = context.window_manager.operators.get('GPENCIL_OT_interpolate_sequence')
        col = layout.column(align=True)
        col.label(text="Sequence Options:")
        if not seq_settings:
            # col.label(text='Launch Interpolate Sequence Once')
            # col.operator('gpencil.interpolate_sequence',text='Interpolate Sequence Once')
            col.label(text='Interpolate sequence', icon='INFO')
            col.label(text='must be launched')
            col.label(text="once per session")
            col.label(text="to expose it's properties")
            return

        col.prop(seq_settings, "step")
        col.prop(seq_settings, "layers")
        col.prop(seq_settings, "interpolate_selected_only")
        col.prop(seq_settings, "flip")
        col.prop(seq_settings, "smooth_factor")
        col.prop(seq_settings, "smooth_steps")
        col.prop(seq_settings, "type")
        if seq_settings.type == 'CUSTOM':
            # TODO: Options for loading/saving curve presets?
            col.template_curve_mapping(interpolate_settings, "interpolation_curve", brush=True,
                                       use_negative_slope=True)
        elif seq_settings.type != 'LINEAR':
            col.prop(seq_settings, "easing")

            if seq_settings.type == 'BACK':
                layout.prop(seq_settings, "back")
            elif seq_settings.type == 'ELASTIC':
                sub = layout.column(align=True)
                sub.prop(seq_settings, "amplitude")
                sub.prop(seq_settings, "period")
        '''


## recreate property group from operator options
# inspect context.window_manager.operators['GPENCIL_OT_interpolate_sequence']
# separate options from single interpolation and sequence interpolation

# class GPTB_PG_interpolate_sequence_prop(bpy.types.PropertyGroup):
#     interpolate_selected_only : BoolProperty(
#         name="Selected Only",
#         description="", 
#         default=True,
#         options={'HIDDEN'})

def interpolate_header_ui(self, context):
    layout = self.layout
    obj = context.active_object

    if obj and obj.type == 'GREASEPENCIL' and context.gpencil_data:
        gpd = context.gpencil_data
    else:
        return

    if gpd.use_stroke_edit_mode or gpd.is_stroke_paint_mode:
        row = layout.row(align=True)
        row.popover(
            panel="GPTB_PT_tools_grease_pencil_interpolate",
            text="Interpolate",
        )

classes = (
GPTB_PT_sidebar_panel,
GPTB_PT_checker,
GPTB_PT_anim_manager,
GPTB_PT_color,
GPTB_PT_tint_layers,
GPTB_PT_toolbox_playblast,
# GPTB_PT_tools_grease_pencil_interpolate, # WIP

# palettes linker
GPTB_PT_palettes_linker_main_ui, # main panel
GPTB_PT_palettes_list_popup, # popup (dummy region)
GPTB_PT_palettes_path_ui, # subpanels
GPTB_PT_palettes_list_ui, # subpanels 
# GPTB_PT_extra,

)

def register():
    for cls in classes:
        bpy.utils.register_class(cls)
    bpy.types.GPENCIL_MT_material_context_menu.append(palette_manager_menu)
    bpy.types.DOPESHEET_PT_grease_pencil_mode.append(expose_use_channel_color_pref)
    # bpy.types.GPENCIL_MT_material_context_menu.append(palette_manager_menu)
    # bpy.types.DOPESHEET_PT_gpencil_layer_display.append(expose_use_channel_color_pref)
    
    # bpy.types.VIEW3D_HT_header.append(interpolate_header_ui) # WIP

    # if bpy.app.version >= (3,0,0):
    #     bpy.types.ASSETBROWSER_PT_metadata.append(asset_browser_ui)
        

def unregister():
    # bpy.types.VIEW3D_HT_header.remove(interpolate_header_ui) # WIP
    
    bpy.types.DOPESHEET_PT_grease_pencil_mode.remove(expose_use_channel_color_pref)
    bpy.types.GPENCIL_MT_material_context_menu.remove(palette_manager_menu)
    # bpy.types.DOPESHEET_PT_gpencil_layer_display.remove(expose_use_channel_color_pref)
    # bpy.types.GPENCIL_MT_material_context_menu.remove(palette_manager_menu)
    
    
    # if bpy.app.version >= (3,0,0):
    #     bpy.types.ASSETBROWSER_PT_metadata.remove(asset_browser_ui)

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


"""
## direct panel def append (no submenu with arrow)
## need to use append and remove in register/unregister
# bpy.types.DATA_PT_gpencil_layers.append(UI_tools.GPdata_toolbox_panel)
# bpy.types.DATA_PT_gpencil_layers.remove(UI_tools.GPdata_toolbox_panel)

def GPdata_toolbox_panel(self, context):
    layout = self.layout
    layout.use_property_split = True
    settings = context.scene.gptoolprops

    col = layout.column(align = True)
    col.prop(settings, 'autotint_offset')
    col.operator("gp.auto_tint_gp_layers", icon = "COLOR").reset = False
    col.operator("gp.auto_tint_gp_layers", text = "Reset tint", icon = "COLOR").reset = True
"""