/usr/share/pyshared/blockdiag/noderenderer/roundedbox.py is in python-blockdiag 1.3.2-1.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 | # -*- coding: utf-8 -*-
# Copyright 2011 Takeshi KOMIYA
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
from blockdiag.noderenderer import NodeShape
from blockdiag.noderenderer import install_renderer
from blockdiag.utils import XY, Box
from blockdiag.imagedraw.simplesvg import pathdata
class RoundedBox(NodeShape):
def render_shape(self, drawer, _, **kwargs):
# draw background
self.render_shape_background(drawer, **kwargs)
# draw outline
box = self.metrics.cell(self.node).box
if not kwargs.get('shadow'):
if self.node.background:
drawer.image(box, self.node.background)
self.render_shape_outline(drawer, **kwargs)
def render_shape_outline(self, drawer, **kwargs):
m = self.metrics.cell(self.node)
r = self.metrics.cellsize
box = m.box
lines = [(XY(box[0] + r, box[1]), XY(box[2] - r, box[1])),
(XY(box[2], box[1] + r), XY(box[2], box[3] - r)),
(XY(box[0] + r, box[3]), XY(box[2] - r, box[3])),
(XY(box[0], box[1] + r), XY(box[0], box[3] - r))]
for line in lines:
drawer.line(line, fill=self.node.linecolor, style=self.node.style)
r2 = r * 2
arcs = [(Box(box[0], box[1], box[0] + r2, box[1] + r2), 180, 270),
(Box(box[2] - r2, box[1], box[2], box[1] + r2), 270, 360),
(Box(box[2] - r2, box[3] - r2, box[2], box[3]), 0, 90),
(Box(box[0], box[3] - r2, box[0] + r2, box[3]), 90, 180)]
for arc in arcs:
drawer.arc(arc[0], arc[1], arc[2],
fill=self.node.linecolor, style=self.node.style)
def render_shape_background(self, drawer, **kwargs):
fill = kwargs.get('fill')
m = self.metrics.cell(self.node)
r = self.metrics.cellsize
box = m.box
ellipses = [Box(box[0], box[1], box[0] + r * 2, box[1] + r * 2),
Box(box[2] - r * 2, box[1], box[2], box[1] + r * 2),
Box(box[0], box[3] - r * 2, box[0] + r * 2, box[3]),
Box(box[2] - r * 2, box[3] - r * 2, box[2], box[3])]
for e in ellipses:
if kwargs.get('shadow'):
e = self.shift_shadow(e)
if kwargs.get('style') == 'blur':
drawer.ellipse(e, fill=fill, outline=fill,
filter='transp-blur')
else:
drawer.ellipse(e, fill=fill, outline=fill)
else:
drawer.ellipse(e, fill=self.node.color,
outline=self.node.color)
rects = [Box(box[0] + r, box[1], box[2] - r, box[3]),
Box(box[0], box[1] + r, box[2], box[3] - r)]
for rect in rects:
if kwargs.get('shadow'):
rect = self.shift_shadow(rect)
if kwargs.get('style') == 'blur':
drawer.rectangle(rect, fill=fill, outline=fill,
filter='transp-blur')
else:
drawer.rectangle(rect, fill=fill, outline=fill)
else:
drawer.rectangle(rect, fill=self.node.color,
outline=self.node.color)
def render_vector_shape(self, drawer, _, **kwargs):
fill = kwargs.get('fill')
# create pathdata
box = self.metrics.cell(self.node).box
r = self.metrics.cellsize
if kwargs.get('shadow'):
box = self.shift_shadow(box)
path = pathdata(box[0] + r, box[1])
path.line(box[2] - r, box[1])
path.ellarc(r, r, 0, 0, 1, box[2], box[1] + r)
path.line(box[2], box[3] - r)
path.ellarc(r, r, 0, 0, 1, box[2] - r, box[3])
path.line(box[0] + r, box[3])
path.ellarc(r, r, 0, 0, 1, box[0], box[3] - r)
path.line(box[0], box[1] + r)
path.ellarc(r, r, 0, 0, 1, box[0] + r, box[1])
# draw outline
if kwargs.get('shadow'):
if kwargs.get('style') == 'blur':
drawer.path(path, fill=fill, outline=fill,
filter='transp-blur')
else:
drawer.path(path, fill=fill, outline=fill)
elif self.node.background:
drawer.path(path, fill=self.node.color, outline=self.node.color)
drawer.image(self.textbox, self.node.background)
drawer.path(path, fill="none",
outline=self.node.linecolor, style=self.node.style)
else:
drawer.path(path, fill=self.node.color,
outline=self.node.linecolor, style=self.node.style)
def setup(self):
install_renderer('roundedbox', RoundedBox)
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