from lnx.logicnode.lnx_nodes import *


class DrawStringNode(LnxLogicTreeNode):
    """Draws a string.

    @input Draw: Activate to draw the string on this frame. The input must
        be (indirectly) called from an `On Render2D` node.
    @input String: The string to draw.
    @input Font File: The filename of the font (including the extension).
        If empty and Zui is _enabled_, the default font is used. If empty
        and Zui is _disabled_, nothing is rendered.
    @input Font Size: The size of the font in pixels.
    @input Color: The color of the string.
    @input X/Y: Position of the string, in pixels from the top left corner.
    @input Angle: Rotation angle in radians. Rectangle will be rotated cloclwiswe
        at the anchor point.

    @output Out: Activated after the string has been drawn.
    @output Height: String Height.
    @output Width: String Width.

    @see [`kha.graphics2.Graphics.drawString()`](http://kha.tech/api/kha/graphics2/Graphics.html#drawString).
    """
    bl_idname = 'LNDrawStringNode'
    bl_label = 'Draw String'
    lnx_section = 'draw'
    lnx_version = 2

    def lnx_init(self, context):
        self.add_input('LnxNodeSocketAction', 'Draw')
        self.add_input('LnxStringSocket', 'String')
        self.add_input('LnxStringSocket', 'Font File')
        self.add_input('LnxIntSocket', 'Font Size', default_value=16)
        self.add_input('LnxColorSocket', 'Color', default_value=[1.0, 1.0, 1.0, 1.0])
        self.add_input('LnxFloatSocket', 'X')
        self.add_input('LnxFloatSocket', 'Y')
        self.add_input('LnxFloatSocket', 'Angle')

        self.add_output('LnxNodeSocketAction', 'Out')
        self.add_output('LnxFloatSocket', 'Height')
        self.add_output('LnxFloatSocket', 'Width')

    def get_replacement_node(self, node_tree: bpy.types.NodeTree):
        if self.lnx_version not in (0, 1):
            raise LookupError()
            
        return NodeReplacement.Identity(self)