Beispiel #1
0
def calculate_left_right_padding(maxcol, align_type, align_amount, 
    width_type, width_amount, min_width, left, right):
    """
    Return the amount of padding (or clipping) on the left and
    right part of maxcol columns to satisfy the following:

    align_type -- 'left', 'center', 'right', 'relative'
    align_amount -- a percentage when align_type=='relative'
    width_type -- 'fixed', 'relative', 'clip'
    width_amount -- a percentage when width_type=='relative'
        otherwise equal to the width of the widget
    min_width -- a desired minimum width for the widget or None
    left -- a fixed number of columns to pad on the left
    right -- a fixed number of columns to pad on the right

    >>> clrp = calculate_left_right_padding
    >>> clrp(15, 'left', 0, 'fixed', 10, None, 2, 0)
    (2, 3)
    >>> clrp(15, 'relative', 0, 'fixed', 10, None, 2, 0)
    (2, 3)
    >>> clrp(15, 'relative', 100, 'fixed', 10, None, 2, 0)
    (5, 0)
    >>> clrp(15, 'center', 0, 'fixed', 4, None, 2, 0)
    (6, 5)
    >>> clrp(15, 'left', 0, 'clip', 18, None, 0, 0)
    (0, -3)
    >>> clrp(15, 'right', 0, 'clip', 18, None, 0, -1)
    (-2, -1)
    >>> clrp(15, 'center', 0, 'fixed', 18, None, 2, 0)
    (0, 0)
    >>> clrp(20, 'left', 0, 'relative', 60, None, 0, 0)
    (0, 8)
    >>> clrp(20, 'relative', 30, 'relative', 60, None, 0, 0)
    (2, 6)
    >>> clrp(20, 'relative', 30, 'relative', 60, 14, 0, 0)
    (2, 4)
    """
    if width_type == RELATIVE:
        maxwidth = max(maxcol - left - right, 0)
        width = int_scale(width_amount, 101, maxwidth + 1)
        if min_width is not None:
            width = max(width, min_width)
    else:
        width = width_amount
    
    standard_alignments = {LEFT:0, CENTER:50, RIGHT:100}
    align = standard_alignments.get(align_type, align_amount)

    # add the remainder of left/right the padding
    padding = maxcol - width - left - right
    right += int_scale(100 - align, 101, padding + 1) 
    left = maxcol - width - right

    # reduce padding if we are clipping an edge
    if right < 0 and left > 0:
        shift = min(left, -right)
        left -= shift
        right += shift
    elif left < 0 and right > 0:
        shift = min(right, -left)
        right -= shift
        left += shift
    
    # only clip if width_type == 'clip'
    if width_type != CLIP and (left < 0 or right < 0):
        left = max(left, 0)
        right = max(right, 0)
    
    return left, right
Beispiel #2
0
    middle_values = [0] + [(values[i] + values[i + 1] + 1) // 2
        for i in range(len(values) - 1)] + [size]
    lookup_table = []
    for i in range(len(middle_values)-1):
        count = middle_values[i + 1] - middle_values[i]
        lookup_table.extend([i] * count)
    return lookup_table

_CUBE_256_LOOKUP = _value_lookup_table(_CUBE_STEPS_256, 256)
_GRAY_256_LOOKUP = _value_lookup_table([0] + _GRAY_STEPS_256 + [0xff], 256)
_CUBE_88_LOOKUP = _value_lookup_table(_CUBE_STEPS_88, 256)
_GRAY_88_LOOKUP = _value_lookup_table([0] + _GRAY_STEPS_88 + [0xff], 256)

# convert steps to values that will be used by string versions of the colors
# 1 hex digit for rgb and 0..100 for grayscale
_CUBE_STEPS_256_16 = [int_scale(n, 0x100, 0x10) for n in _CUBE_STEPS_256]
_GRAY_STEPS_256_101 = [int_scale(n, 0x100, 101) for n in _GRAY_STEPS_256]
_CUBE_STEPS_88_16 = [int_scale(n, 0x100, 0x10) for n in _CUBE_STEPS_88]
_GRAY_STEPS_88_101 = [int_scale(n, 0x100, 101) for n in _GRAY_STEPS_88]

# create lookup tables for 1 hex digit rgb and 0..100 for grayscale values
_CUBE_256_LOOKUP_16 = [_CUBE_256_LOOKUP[int_scale(n, 16, 0x100)]
    for n in range(16)]
_GRAY_256_LOOKUP_101 = [_GRAY_256_LOOKUP[int_scale(n, 101, 0x100)]
    for n in range(101)]
_CUBE_88_LOOKUP_16 = [_CUBE_88_LOOKUP[int_scale(n, 16, 0x100)]
    for n in range(16)]
_GRAY_88_LOOKUP_101 = [_GRAY_88_LOOKUP[int_scale(n, 101, 0x100)]
    for n in range(101)]

def calculate_top_bottom_filler(maxrow, valign_type, valign_amount, height_type,
        height_amount, min_height, top, bottom):
    """
    Return the amount of filler (or clipping) on the top and
    bottom part of maxrow rows to satisfy the following:

    valign_type -- 'top', 'middle', 'bottom', 'relative'
    valign_amount -- a percentage when align_type=='relative'
    height_type -- 'given', 'relative', 'clip'
    height_amount -- a percentage when width_type=='relative'
        otherwise equal to the height of the widget
    min_height -- a desired minimum width for the widget or None
    top -- a fixed number of rows to fill on the top
    bottom -- a fixed number of rows to fill on the bottom

    >>> ctbf = calculate_top_bottom_filler
    >>> ctbf(15, 'top', 0, 'given', 10, None, 2, 0)
    (2, 3)
    >>> ctbf(15, 'relative', 0, 'given', 10, None, 2, 0)
    (2, 3)
    >>> ctbf(15, 'relative', 100, 'given', 10, None, 2, 0)
    (5, 0)
    >>> ctbf(15, 'middle', 0, 'given', 4, None, 2, 0)
    (6, 5)
    >>> ctbf(15, 'middle', 0, 'given', 18, None, 2, 0)
    (0, 0)
    >>> ctbf(20, 'top', 0, 'relative', 60, None, 0, 0)
    (0, 8)
    >>> ctbf(20, 'relative', 30, 'relative', 60, None, 0, 0)
    (2, 6)
    >>> ctbf(20, 'relative', 30, 'relative', 60, 14, 0, 0)
    (2, 4)
    """
    if height_type == RELATIVE:
        maxheight = max(maxrow - top - bottom, 0)
        height = int_scale(height_amount, 101, maxheight + 1)
        if min_height is not None:
            height = max(height, min_height)
    else:
        height = height_amount

    standard_alignments = {TOP:0, MIDDLE:50, BOTTOM:100}
    valign = standard_alignments.get(valign_type, valign_amount)

    # add the remainder of top/bottom to the filler
    filler = maxrow - height - top - bottom
    bottom += int_scale(100 - valign, 101, filler + 1)
    top = maxrow - height - bottom

    # reduce filler if we are clipping an edge
    if bottom < 0 < top:
        shift = min(top, -bottom)
        top -= shift
        bottom += shift
    elif top < 0 < bottom:
        shift = min(bottom, -top)
        bottom -= shift
        top += shift

    # no negative values for filler at the moment
    top = max(top, 0)
    bottom = max(bottom, 0)

    return top, bottom
def calculate_left_right_padding(maxcol, align_type, align_amount, width_type,
                                 width_amount, min_width, left, right):
    """
    Return the amount of padding (or clipping) on the left and
    right part of maxcol columns to satisfy the following:

    align_type -- 'left', 'center', 'right', 'relative'
    align_amount -- a percentage when align_type=='relative'
    width_type -- 'fixed', 'relative', 'clip'
    width_amount -- a percentage when width_type=='relative'
        otherwise equal to the width of the widget
    min_width -- a desired minimum width for the widget or None
    left -- a fixed number of columns to pad on the left
    right -- a fixed number of columns to pad on the right

    >>> clrp = calculate_left_right_padding
    >>> clrp(15, 'left', 0, 'fixed', 10, None, 2, 0)
    (2, 3)
    >>> clrp(15, 'relative', 0, 'fixed', 10, None, 2, 0)
    (2, 3)
    >>> clrp(15, 'relative', 100, 'fixed', 10, None, 2, 0)
    (5, 0)
    >>> clrp(15, 'center', 0, 'fixed', 4, None, 2, 0)
    (6, 5)
    >>> clrp(15, 'left', 0, 'clip', 18, None, 0, 0)
    (0, -3)
    >>> clrp(15, 'right', 0, 'clip', 18, None, 0, -1)
    (-2, -1)
    >>> clrp(15, 'center', 0, 'fixed', 18, None, 2, 0)
    (0, 0)
    >>> clrp(20, 'left', 0, 'relative', 60, None, 0, 0)
    (0, 8)
    >>> clrp(20, 'relative', 30, 'relative', 60, None, 0, 0)
    (2, 6)
    >>> clrp(20, 'relative', 30, 'relative', 60, 14, 0, 0)
    (2, 4)
    """
    if width_type == RELATIVE:
        maxwidth = max(maxcol - left - right, 0)
        width = int_scale(width_amount, 101, maxwidth + 1)
        if min_width is not None:
            width = max(width, min_width)
    else:
        width = width_amount

    standard_alignments = {LEFT: 0, CENTER: 50, RIGHT: 100}
    align = standard_alignments.get(align_type, align_amount)

    # add the remainder of left/right the padding
    padding = maxcol - width - left - right
    right += int_scale(100 - align, 101, padding + 1)
    left = maxcol - width - right

    # reduce padding if we are clipping an edge
    if right < 0 and left > 0:
        shift = min(left, -right)
        left -= shift
        right += shift
    elif left < 0 and right > 0:
        shift = min(right, -left)
        right -= shift
        left += shift

    # only clip if width_type == 'clip'
    if width_type != CLIP and (left < 0 or right < 0):
        left = max(left, 0)
        right = max(right, 0)

    return left, right
Beispiel #5
0
                           for i in range(len(values) - 1)] + [size]
    lookup_table = []
    for i in range(len(middle_values) - 1):
        count = middle_values[i + 1] - middle_values[i]
        lookup_table.extend([i] * count)
    return lookup_table


_CUBE_256_LOOKUP = _value_lookup_table(_CUBE_STEPS_256, 256)
_GRAY_256_LOOKUP = _value_lookup_table([0] + _GRAY_STEPS_256 + [0xff], 256)
_CUBE_88_LOOKUP = _value_lookup_table(_CUBE_STEPS_88, 256)
_GRAY_88_LOOKUP = _value_lookup_table([0] + _GRAY_STEPS_88 + [0xff], 256)

# convert steps to values that will be used by string versions of the colors
# 1 hex digit for rgb and 0..100 for grayscale
_CUBE_STEPS_256_16 = [int_scale(n, 0x100, 0x10) for n in _CUBE_STEPS_256]
_GRAY_STEPS_256_101 = [int_scale(n, 0x100, 101) for n in _GRAY_STEPS_256]
_CUBE_STEPS_88_16 = [int_scale(n, 0x100, 0x10) for n in _CUBE_STEPS_88]
_GRAY_STEPS_88_101 = [int_scale(n, 0x100, 101) for n in _GRAY_STEPS_88]

# create lookup tables for 1 hex digit rgb and 0..100 for grayscale values
_CUBE_256_LOOKUP_16 = [
    _CUBE_256_LOOKUP[int_scale(n, 16, 0x100)] for n in range(16)
]
_GRAY_256_LOOKUP_101 = [
    _GRAY_256_LOOKUP[int_scale(n, 101, 0x100)] for n in range(101)
]
_CUBE_88_LOOKUP_16 = [
    _CUBE_88_LOOKUP[int_scale(n, 16, 0x100)] for n in range(16)
]
_GRAY_88_LOOKUP_101 = [
Beispiel #6
0
def calculate_top_bottom_filler(maxrow, valign_type, valign_amount,
                                height_type, height_amount, min_height, top,
                                bottom):
    """
    Return the amount of filler (or clipping) on the top and
    bottom part of maxrow rows to satisfy the following:

    valign_type -- 'top', 'middle', 'bottom', 'relative'
    valign_amount -- a percentage when align_type=='relative'
    height_type -- 'given', 'relative', 'clip'
    height_amount -- a percentage when width_type=='relative'
        otherwise equal to the height of the widget
    min_height -- a desired minimum width for the widget or None
    top -- a fixed number of rows to fill on the top
    bottom -- a fixed number of rows to fill on the bottom

    >>> ctbf = calculate_top_bottom_filler
    >>> ctbf(15, 'top', 0, 'given', 10, None, 2, 0)
    (2, 3)
    >>> ctbf(15, 'relative', 0, 'given', 10, None, 2, 0)
    (2, 3)
    >>> ctbf(15, 'relative', 100, 'given', 10, None, 2, 0)
    (5, 0)
    >>> ctbf(15, 'middle', 0, 'given', 4, None, 2, 0)
    (6, 5)
    >>> ctbf(15, 'middle', 0, 'given', 18, None, 2, 0)
    (0, 0)
    >>> ctbf(20, 'top', 0, 'relative', 60, None, 0, 0)
    (0, 8)
    >>> ctbf(20, 'relative', 30, 'relative', 60, None, 0, 0)
    (2, 6)
    >>> ctbf(20, 'relative', 30, 'relative', 60, 14, 0, 0)
    (2, 4)
    """
    if height_type == RELATIVE:
        maxheight = max(maxrow - top - bottom, 0)
        height = int_scale(height_amount, 101, maxheight + 1)
        if min_height is not None:
            height = max(height, min_height)
    else:
        height = height_amount

    standard_alignments = {TOP: 0, MIDDLE: 50, BOTTOM: 100}
    valign = standard_alignments.get(valign_type, valign_amount)

    # add the remainder of top/bottom to the filler
    filler = maxrow - height - top - bottom
    bottom += int_scale(100 - valign, 101, filler + 1)
    top = maxrow - height - bottom

    # reduce filler if we are clipping an edge
    if bottom < 0 < top:
        shift = min(top, -bottom)
        top -= shift
        bottom += shift
    elif top < 0 < bottom:
        shift = min(bottom, -top)
        bottom -= shift
        top += shift

    # no negative values for filler at the moment
    top = max(top, 0)
    bottom = max(bottom, 0)

    return top, bottom