font3d_blender_addon/common/utils.py

import time
import datetime
from mathutils import (
        Vector,
        )

def get_timestamp():
    return datetime.datetime \
        .fromtimestamp(time.time()) \
        .strftime('%Y.%m.%d-%H:%M:%S')

def mapRange(in_value, in_min, in_max, out_min, out_max, clamp=False):
    output = out_min + ((out_max - out_min) / (in_max - in_min)) * (in_value - in_min)
    if clamp:
        if out_min < out_max:
            return min(out_max, max(out_min, output))
        else:
            return max(out_max, min(out_min, output))
    else:
        return output
import warnings
import functools

def deprecated(func):
    """This is a decorator which can be used to mark functions
    as deprecated. It will result in a warning being emitted
    when the function is used."""
    @functools.wraps(func)
    def new_func(*args, **kwargs):
        warnings.simplefilter('always', DeprecationWarning)  # turn off filter
        warnings.warn("Call to deprecated function {}.".format(func.__name__),
                      category=DeprecationWarning,
                      stacklevel=2)
        warnings.simplefilter('default', DeprecationWarning)  # reset filter
        return func(*args, **kwargs)
    return new_func

def open_file_browser(directory):
    if sys.platform=='win32':
        os.startfile(directory)
    
    elif sys.platform=='darwin':
        subprocess.Popen(['open', directory])
    
    else:
        try:
            subprocess.Popen(['xdg-open', directory])
        except OSError:
            pass
            # er, think of something else to try
            # xdg-open *should* be supported by recent Gnome, KDE, Xfce


# # Evaluate a bezier curve for the parameter 0<=t<=1 along its length
# def evaluateBezierPoint(p1, h1, h2, p2, t):
    # return ((1 - t)**3) * p1 + (3 * t * (1 - t)**2) * h1 + (3 * (t**2) * (1 - t)) * h2 + (t**3) * p2


# # Evaluate the unit tangent on a bezier curve for t
# def evaluateBezierTangent(p1, h1, h2, p2, t):
    # return (
            # (-3 * (1 - t)**2) * p1 + (-6 * t * (1 - t) + 3 * (1 - t)**2) * h1 +
            # (-3 * (t**2) + 6 * t * (1 - t)) * h2 + (3 * t**2) * p2
            # ).normalized()

# def calculateBezierLength(p1, h1, h2, p2, resolution=20):
   # step = 1/resolution
   # previous_p = p1
   # length = 0
   # for i in range(0, resolution):
       # t = (i + 1) * step
       # p = evaluateBezierPoint(p1, h1, h2, p2, t)
       # length += p.distance(previous_p)
       # previous_p = p
    # return length