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"""This module provides the view provider code for Draft DimensionStyle.
"""
## @package polararray
# \ingroup DRAFT
# \brief This module provides the view provider code for Draft DimensionStyle.

import FreeCAD as App
from Draft import _ViewProviderDraft
from PySide.QtCore import QT_TRANSLATE_NOOP
import draftutils.utils as utils
from pivy import coin
from draftviewproviders.view_draft_annotation import ViewProviderDraftAnnotation
from draftviewproviders.view_draft_annotation import ViewProviderAnnotationStylesContainer
from draftviewproviders.view_dimension import ViewProviderDimensionBase


class ViewProviderDimensionStylesContainer(ViewProviderAnnotationStylesContainer):
    """A View Provider for the Dimension Style Container"""

    def __init__(self, vobj):
        super().__init__(vobj)
        vobj.Proxy = self

    def getIcon(self):

        return ":/icons/Draft_Annotation_Style.svg"


class ViewProviderDraftDimensionStyle(ViewProviderDimensionBase):
    """
    Dimension style dont have a proper object but just a viewprovider.
    It stores inside a document object dimension settings and restore them on demand.
    """
    def __init__(self, vobj, existing_dimension = None):
        super().__init__(vobj)

        vobj.addProperty("App::PropertyBool","AutoUpdate",
                         "Annotation",
                         QT_TRANSLATE_NOOP("App::Property",
                                           "Auto update associated dimensions"))

        self.init_properties(vobj, existing_dimension)

        # Visibility is True only if the style is active
        vobj.Visibility = False

    def init_properties(self, vobj, existing_dimension):
        """
        Initializes Dimension Style properties
        """
        # get the style from FreeCAD Draft Parameters
        param = App.ParamGet("User parameter:BaseApp/Preferences/Mod/Draft")
        annotation_scale = param.GetFloat("DraftAnnotationScale", 1.0)

        vobj.ScaleMultiplier = 1 / annotation_scale
        vobj.AutoUpdate = True

        vobj.FontName = utils.get_param("textfont","")
        vobj.FontSize = utils.get_param("textheight",0.20)
        vobj.TextSpacing = utils.get_param("dimspacing",0.05)

        vobj.Decimals = utils.get_param("dimPrecision",2)
        vobj.ShowUnit = utils.get_param("showUnit",True)

        vobj.ArrowSize = utils.get_param("arrowsize",0.1)
        vobj.ArrowType = utils.ARROW_TYPES
        vobj.ArrowType = utils.ARROW_TYPES[utils.get_param("dimsymbol",0)]
        vobj.DimOvershoot = utils.get_param("dimovershoot",0)  
        vobj.ExtLines = utils.get_param("extlines",0.3)
        vobj.ExtOvershoot = utils.get_param("extovershoot",0)
        vobj.ShowLine = True          

        if existing_dimension and hasattr(existing_dimension, "ViewObject"):
            # get the style from given dimension
            from draftutils import gui_utils
            gui_utils.format_object(target = vobj.Object, origin = existing_dimension)
          
    def onChanged(self, vobj, prop):
        if hasattr(vobj, "AutoUpdate"):
            if vobj.AutoUpdate:
                self.update_related_dimensions(vobj)

    def doubleClicked(self,vobj):
        self.set_current(vobj)

    def setupContextMenu(self,vobj,menu):
        action1 = menu.addAction("Set current")
        action1.triggered.connect(lambda f=self.set_current, arg=vobj:f(arg))
        action2 = menu.addAction("Update dimensions")
        action2.triggered.connect(lambda f=self.update_related_dimensions, arg=vobj:f(arg))
    
    def set_current(self, vobj):
        """
        Sets the current dimension style as default for new created dimensions
        """
        param = App.ParamGet("User parameter:BaseApp/Preferences/Mod/Draft")
        param.SetFloat("DraftAnnotationScale", 1 / vobj.ScaleMultiplier)

        param.SetString("textfont", vobj.FontName)
        param.SetFloat("textheight", vobj.FontSize)
        param.SetFloat("dimspacing", vobj.TextSpacing)
 
        param.SetInt("dimPrecision", vobj.Decimals)

        param.SetFloat("arrowsize", vobj.ArrowSize)
        param.SetInt("dimsymbol", utils.ARROW_TYPES.index(vobj.ArrowType))
        param.SetFloat("dimovershoot", vobj.DimOvershoot)
        param.SetFloat("extlines", vobj.ExtLines)
        param.SetFloat("extovershoot", vobj.ExtOvershoot)
        
        App.Console.PrintMessage("Current dimension style set to " + str(vobj.Object.Label) + "\n")

        vobj.Object.Proxy.set_current(vobj.Object)

    def update_related_dimensions(self, vobj):
        """
        Apply the style to the related dimensions
        """
        from draftutils import gui_utils
        for dim in vobj.Object.InList:
            gui_utils.format_object(target = dim, origin = vobj.Object)

    def getIcon(self):
        import Draft_rc
        return ":/icons/Draft_Dimension_Tree_Style.svg"

    def attach(self, vobj):
        self.standard = coin.SoGroup()
        vobj.addDisplayMode(self.standard,"Standard")

    def getDisplayModes(self,obj):
        "'''Return a list of display modes.'''"
        return ["Standard"]

    def getDefaultDisplayMode(self):
        "'''Return the name of the default display mode. It must be defined in getDisplayModes.'''"
        return "Standard"