/usr/lib/python2.7/dist-packages/xlsxwriter/drawing.py is in python-xlsxwriter 0.7.3-1.
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#
# Drawing - A class for writing the Excel XLSX Drawing file.
#
# Copyright 2013-2015, John McNamara, jmcnamara@cpan.org
#
import re
from . import xmlwriter
from .shape import Shape
from .utility import get_rgb_color
class Drawing(xmlwriter.XMLwriter):
"""
A class for writing the Excel XLSX Drawing file.
"""
###########################################################################
#
# Public API.
#
###########################################################################
def __init__(self):
"""
Constructor.
"""
super(Drawing, self).__init__()
self.drawings = []
self.embedded = 0
self.orientation = 0
###########################################################################
#
# Private API.
#
###########################################################################
def _assemble_xml_file(self):
# Assemble and write the XML file.
# Write the XML declaration.
self._xml_declaration()
# Write the xdr:wsDr element.
self._write_drawing_workspace()
if self.embedded:
index = 1
for drawing in self.drawings:
# Write the xdr:twoCellAnchor element.
self._write_two_cell_anchor(index, drawing)
index += 1
if drawing['url']:
index += 1
else:
# Write the xdr:absoluteAnchor element.
self._write_absolute_anchor(1)
self._xml_end_tag('xdr:wsDr')
# Close the file.
self._xml_close()
def _add_drawing_object(self, drawing_object):
# Add a chart, image or shape sub object to the drawing.
obj = {
'anchor_type': drawing_object[0],
'col_from': drawing_object[1],
'row_from': drawing_object[2],
'col_from_offset': drawing_object[3],
'row_from_offset': drawing_object[4],
'col_to': drawing_object[5],
'row_to': drawing_object[6],
'col_to_offset': drawing_object[7],
'row_to_offset': drawing_object[8],
'col_absolute': drawing_object[9],
'row_absolute': drawing_object[10],
'width': drawing_object[11],
'height': drawing_object[12],
'description': drawing_object[13],
'shape': drawing_object[14],
'url': None,
'tip': None,
'anchor': None
}
if len(drawing_object) > 15:
obj['url'] = drawing_object[15]
obj['tip'] = drawing_object[16]
obj['anchor'] = drawing_object[17]
self.drawings.append(obj)
###########################################################################
#
# XML methods.
#
###########################################################################
def _write_drawing_workspace(self):
# Write the <xdr:wsDr> element.
schema = 'http://schemas.openxmlformats.org/drawingml/'
xmlns_xdr = schema + '2006/spreadsheetDrawing'
xmlns_a = schema + '2006/main'
attributes = [
('xmlns:xdr', xmlns_xdr),
('xmlns:a', xmlns_a),
]
self._xml_start_tag('xdr:wsDr', attributes)
def _write_two_cell_anchor(self, index, drawing):
# Write the <xdr:twoCellAnchor> element.
shape = drawing['shape']
options = {
'description': drawing['description'],
'url': drawing['url'],
'tip': drawing['tip']
}
attributes = []
# Add attribute for images.
if drawing['anchor_type'] == 2:
if drawing['anchor'] == 3:
attributes.append(('editAs', 'absolute'))
elif drawing['anchor'] == 1:
pass
else:
attributes.append(('editAs', 'oneCell'))
# Add editAs attribute for shapes.
if shape and shape.edit_as:
attributes.append(('editAs', shape.edit_as))
self._xml_start_tag('xdr:twoCellAnchor', attributes)
# Write the xdr:from element.
self._write_from(
drawing['col_from'],
drawing['row_from'],
drawing['col_from_offset'],
drawing['row_from_offset'])
# Write the xdr:from element.
self._write_to(
drawing['col_to'],
drawing['row_to'],
drawing['col_to_offset'],
drawing['row_to_offset'])
if drawing['anchor_type'] == 1:
# Graphic frame.
# Write the xdr:graphicFrame element for charts.
self._write_graphic_frame(index, drawing['description'])
elif drawing['anchor_type'] == 2:
# Write the xdr:pic element.
self._write_pic(index,
drawing['col_absolute'],
drawing['row_absolute'],
drawing['width'],
drawing['height'],
shape,
options)
else:
# Write the xdr:sp element for shapes.
self._write_sp(index,
drawing['col_absolute'],
drawing['row_absolute'],
drawing['width'],
drawing['height'],
shape)
# Write the xdr:clientData element.
self._write_client_data()
self._xml_end_tag('xdr:twoCellAnchor')
def _write_absolute_anchor(self, frame_index):
self._xml_start_tag('xdr:absoluteAnchor')
# Write the <xdr:absoluteAnchor> element.
# Different co-ordinates for horizontal (= 0) and vertical (= 1).
if self.orientation == 0:
# Write the xdr:pos element.
self._write_pos(0, 0)
# Write the xdr:ext element.
self._write_ext(9308969, 6078325)
else:
# Write the xdr:pos element.
self._write_pos(0, -47625)
# Write the xdr:ext element.
self._write_ext(6162675, 6124575)
# Write the xdr:graphicFrame element.
self._write_graphic_frame(frame_index)
# Write the xdr:clientData element.
self._write_client_data()
self._xml_end_tag('xdr:absoluteAnchor')
def _write_from(self, col, row, col_offset, row_offset):
# Write the <xdr:from> element.
self._xml_start_tag('xdr:from')
# Write the xdr:col element.
self._write_col(col)
# Write the xdr:colOff element.
self._write_col_off(col_offset)
# Write the xdr:row element.
self._write_row(row)
# Write the xdr:rowOff element.
self._write_row_off(row_offset)
self._xml_end_tag('xdr:from')
def _write_to(self, col, row, col_offset, row_offset):
# Write the <xdr:to> element.
self._xml_start_tag('xdr:to')
# Write the xdr:col element.
self._write_col(col)
# Write the xdr:colOff element.
self._write_col_off(col_offset)
# Write the xdr:row element.
self._write_row(row)
# Write the xdr:rowOff element.
self._write_row_off(row_offset)
self._xml_end_tag('xdr:to')
def _write_col(self, data):
# Write the <xdr:col> element.
self._xml_data_element('xdr:col', data)
def _write_col_off(self, data):
# Write the <xdr:colOff> element.
self._xml_data_element('xdr:colOff', data)
def _write_row(self, data):
# Write the <xdr:row> element.
self._xml_data_element('xdr:row', data)
def _write_row_off(self, data):
# Write the <xdr:rowOff> element.
self._xml_data_element('xdr:rowOff', data)
def _write_pos(self, x, y):
# Write the <xdr:pos> element.
attributes = [('x', x), ('y', y)]
self._xml_empty_tag('xdr:pos', attributes)
def _write_ext(self, cx, cy):
# Write the <xdr:ext> element.
attributes = [('cx', cx), ('cy', cy)]
self._xml_empty_tag('xdr:ext', attributes)
def _write_graphic_frame(self, index, name=None):
# Write the <xdr:graphicFrame> element.
attributes = [('macro', '')]
self._xml_start_tag('xdr:graphicFrame', attributes)
# Write the xdr:nvGraphicFramePr element.
self._write_nv_graphic_frame_pr(index, name)
# Write the xdr:xfrm element.
self._write_xfrm()
# Write the a:graphic element.
self._write_atag_graphic(index)
self._xml_end_tag('xdr:graphicFrame')
def _write_nv_graphic_frame_pr(self, index, name):
# Write the <xdr:nvGraphicFramePr> element.
if not name:
name = 'Chart ' + str(index)
self._xml_start_tag('xdr:nvGraphicFramePr')
# Write the xdr:cNvPr element.
self._write_c_nv_pr(index + 1, name)
# Write the xdr:cNvGraphicFramePr element.
self._write_c_nv_graphic_frame_pr()
self._xml_end_tag('xdr:nvGraphicFramePr')
def _write_c_nv_pr(self, index, name, options={}):
# Write the <xdr:cNvPr> element.
descr = options.get('description', None)
url = options.get('url', None)
tip = options.get('tip', None)
attributes = [('id', index), ('name', name)]
# Add description attribute for images.
if descr is not None:
attributes.append(('descr', descr))
if url:
self._xml_start_tag('xdr:cNvPr', attributes)
schema = "http://schemas.openxmlformats.org"
att = [
('xmlns:r', schema + "/officeDocument/2006/relationships"),
('r:id', "rId" + str(index - 1))
]
if tip:
att.append(('tooltip', tip))
self._xml_empty_tag('a:hlinkClick', att)
self._xml_end_tag('xdr:cNvPr')
else:
self._xml_empty_tag('xdr:cNvPr', attributes)
def _write_c_nv_graphic_frame_pr(self):
# Write the <xdr:cNvGraphicFramePr> element.
if self.embedded:
self._xml_empty_tag('xdr:cNvGraphicFramePr')
else:
self._xml_start_tag('xdr:cNvGraphicFramePr')
# Write the a:graphicFrameLocks element.
self._write_a_graphic_frame_locks()
self._xml_end_tag('xdr:cNvGraphicFramePr')
def _write_a_graphic_frame_locks(self):
# Write the <a:graphicFrameLocks> element.
attributes = [('noGrp', 1)]
self._xml_empty_tag('a:graphicFrameLocks', attributes)
def _write_xfrm(self):
# Write the <xdr:xfrm> element.
self._xml_start_tag('xdr:xfrm')
# Write the xfrmOffset element.
self._write_xfrm_offset()
# Write the xfrmOffset element.
self._write_xfrm_extension()
self._xml_end_tag('xdr:xfrm')
def _write_xfrm_offset(self):
# Write the <a:off> xfrm sub-element.
attributes = [
('x', 0),
('y', 0),
]
self._xml_empty_tag('a:off', attributes)
def _write_xfrm_extension(self):
# Write the <a:ext> xfrm sub-element.
attributes = [
('cx', 0),
('cy', 0),
]
self._xml_empty_tag('a:ext', attributes)
def _write_atag_graphic(self, index):
# Write the <a:graphic> element.
self._xml_start_tag('a:graphic')
# Write the a:graphicData element.
self._write_atag_graphic_data(index)
self._xml_end_tag('a:graphic')
def _write_atag_graphic_data(self, index):
# Write the <a:graphicData> element.
uri = 'http://schemas.openxmlformats.org/drawingml/2006/chart'
attributes = [('uri', uri,)]
self._xml_start_tag('a:graphicData', attributes)
# Write the c:chart element.
self._write_c_chart('rId' + str(index))
self._xml_end_tag('a:graphicData')
def _write_c_chart(self, r_id):
# Write the <c:chart> element.
schema = 'http://schemas.openxmlformats.org/'
xmlns_c = schema + 'drawingml/2006/chart'
xmlns_r = schema + 'officeDocument/2006/relationships'
attributes = [
('xmlns:c', xmlns_c),
('xmlns:r', xmlns_r),
('r:id', r_id),
]
self._xml_empty_tag('c:chart', attributes)
def _write_client_data(self):
# Write the <xdr:clientData> element.
self._xml_empty_tag('xdr:clientData')
def _write_sp(self, index, col_absolute, row_absolute,
width, height, shape):
# Write the <xdr:sp> element.
if shape and shape.connect:
attributes = [('macro', '')]
self._xml_start_tag('xdr:cxnSp', attributes)
# Write the xdr:nvCxnSpPr element.
self._write_nv_cxn_sp_pr(index, shape)
# Write the xdr:spPr element.
self._write_xdr_sp_pr(index, col_absolute, row_absolute, width,
height, shape)
self._xml_end_tag('xdr:cxnSp')
else:
# Add attribute for shapes.
attributes = [('macro', ''),
('textlink', '')]
self._xml_start_tag('xdr:sp', attributes)
# Write the xdr:nvSpPr element.
self._write_nv_sp_pr(index, shape)
# Write the xdr:spPr element.
self._write_xdr_sp_pr(index, col_absolute, row_absolute, width,
height, shape)
# Write the xdr:style element.
self._write_style()
# Write the xdr:txBody element.
if shape.text is not None:
self._write_tx_body(col_absolute, row_absolute, width, height,
shape)
self._xml_end_tag('xdr:sp')
def _write_nv_cxn_sp_pr(self, index, shape):
# Write the <xdr:nvCxnSpPr> element.
self._xml_start_tag('xdr:nvCxnSpPr')
name = shape.name + ' ' + str(index)
if name is not None:
self._write_c_nv_pr(index, name)
self._xml_start_tag('xdr:cNvCxnSpPr')
attributes = [('noChangeShapeType', '1')]
self._xml_empty_tag('a:cxnSpLocks', attributes)
if shape.start:
attributes = [('id', shape.start), ('idx', shape.start_index)]
self._xml_empty_tag('a:stCxn', attributes)
if shape.end:
attributes = [('id', shape.end), ('idx', shape.end_index)]
self._xml_empty_tag('a:endCxn', attributes)
self._xml_end_tag('xdr:cNvCxnSpPr')
self._xml_end_tag('xdr:nvCxnSpPr')
def _write_nv_sp_pr(self, index, shape):
# Write the <xdr:NvSpPr> element.
attributes = []
self._xml_start_tag('xdr:nvSpPr')
name = shape.name + ' ' + str(index)
self._write_c_nv_pr(index + 1, name)
if shape.name == 'TextBox':
attributes = [('txBox', 1)]
self._xml_empty_tag('xdr:cNvSpPr', attributes)
# attributes = [('noChangeArrowheads', '1')]
# self._xml_empty_tag('a:spLocks', attributes)
# self._xml_end_tag('xdr:cNvSpPr')
self._xml_end_tag('xdr:nvSpPr')
def _write_pic(self, index, col_absolute, row_absolute,
width, height, shape, options):
# Write the <xdr:pic> element.
self._xml_start_tag('xdr:pic')
# Write the xdr:nvPicPr element.
self._write_nv_pic_pr(index, options)
# Write the xdr:blipFill element.
if options.get('url', None):
index = index + 1
self._write_blip_fill(index)
# Write the xdr:spPr element.
self._write_sp_pr(col_absolute, row_absolute, width, height,
shape)
self._xml_end_tag('xdr:pic')
def _write_nv_pic_pr(self, index, options):
# Write the <xdr:nvPicPr> element.
self._xml_start_tag('xdr:nvPicPr')
# Write the xdr:cNvPr element.
self._write_c_nv_pr(index + 1, 'Picture ' + str(index), options)
# Write the xdr:cNvPicPr element.
self._write_c_nv_pic_pr()
self._xml_end_tag('xdr:nvPicPr')
def _write_c_nv_pic_pr(self):
# Write the <xdr:cNvPicPr> element.
self._xml_start_tag('xdr:cNvPicPr')
# Write the a:picLocks element.
self._write_a_pic_locks()
self._xml_end_tag('xdr:cNvPicPr')
def _write_a_pic_locks(self):
# Write the <a:picLocks> element.
attributes = [('noChangeAspect', 1)]
self._xml_empty_tag('a:picLocks', attributes)
def _write_blip_fill(self, index):
# Write the <xdr:blipFill> element.
self._xml_start_tag('xdr:blipFill')
# Write the a:blip element.
self._write_a_blip(index)
# Write the a:stretch element.
self._write_a_stretch()
self._xml_end_tag('xdr:blipFill')
def _write_a_blip(self, index):
# Write the <a:blip> element.
schema = 'http://schemas.openxmlformats.org/officeDocument/'
xmlns_r = schema + '2006/relationships'
r_embed = 'rId' + str(index)
attributes = [
('xmlns:r', xmlns_r),
('r:embed', r_embed)]
self._xml_empty_tag('a:blip', attributes)
def _write_a_stretch(self):
# Write the <a:stretch> element.
self._xml_start_tag('a:stretch')
# Write the a:fillRect element.
self._write_a_fill_rect()
self._xml_end_tag('a:stretch')
def _write_a_fill_rect(self):
# Write the <a:fillRect> element.
self._xml_empty_tag('a:fillRect')
def _write_sp_pr(self, col_absolute, row_absolute, width, height,
shape=None):
# Write the <xdr:spPr> element, for charts.
self._xml_start_tag('xdr:spPr')
# Write the a:xfrm element.
self._write_a_xfrm(col_absolute, row_absolute, width, height)
# Write the a:prstGeom element.
self._write_a_prst_geom(shape)
self._xml_end_tag('xdr:spPr')
def _write_xdr_sp_pr(self, index, col_absolute, row_absolute, width,
height, shape):
# Write the <xdr:spPr> element for shapes.
attributes = []
# attributes = [('bwMode', 'auto')]
self._xml_start_tag('xdr:spPr', attributes)
# Write the a:xfrm element.
self._write_a_xfrm(col_absolute, row_absolute, width, height, shape)
# Write the a:prstGeom element.
self._write_a_prst_geom(shape)
if shape.fill:
if not shape.fill['defined']:
# Write the a:solidFill element.
self._write_a_solid_fill_scheme('lt1')
elif 'none' in shape.fill:
# Write the a:noFill element.
self._xml_empty_tag('a:noFill')
elif 'color' in shape.fill:
# Write the a:solidFill element.
self._write_a_solid_fill(get_rgb_color(shape.fill['color']))
if shape.gradient:
# Write the a:gradFill element.
self._write_a_grad_fill(shape.gradient)
# Write the a:ln element.
self._write_a_ln(shape.line)
self._xml_end_tag('xdr:spPr')
def _write_a_xfrm(self, col_absolute, row_absolute, width, height,
shape=None):
# Write the <a:xfrm> element.
attributes = []
if shape:
if shape.rotation:
rotation = shape.rotation
rotation *= 60000
attributes.append(('rot', rotation))
if shape.flip_h:
attributes.append(('flipH', 1))
if shape.flip_v:
attributes.append(('flipV', 1))
self._xml_start_tag('a:xfrm', attributes)
# Write the a:off element.
self._write_a_off(col_absolute, row_absolute)
# Write the a:ext element.
self._write_a_ext(width, height)
self._xml_end_tag('a:xfrm')
def _write_a_off(self, x, y):
# Write the <a:off> element.
attributes = [
('x', x),
('y', y),
]
self._xml_empty_tag('a:off', attributes)
def _write_a_ext(self, cx, cy):
# Write the <a:ext> element.
attributes = [
('cx', cx),
('cy', cy),
]
self._xml_empty_tag('a:ext', attributes)
def _write_a_prst_geom(self, shape=None):
# Write the <a:prstGeom> element.
attributes = [('prst', 'rect')]
self._xml_start_tag('a:prstGeom', attributes)
# Write the a:avLst element.
self._write_a_av_lst(shape)
self._xml_end_tag('a:prstGeom')
def _write_a_av_lst(self, shape=None):
# Write the <a:avLst> element.
adjustments = []
if shape and shape.adjustments:
adjustments = shape.adjustments
if adjustments:
self._xml_start_tag('a:avLst')
i = 0
for adj in adjustments:
i += 1
# Only connectors have multiple adjustments.
if shape.connect:
suffix = i
else:
suffix = ''
# Scale Adjustments: 100,000 = 100%.
adj_int = str(int(adj * 1000))
attributes = [('name', 'adj' + suffix),
('fmla', 'val' + adj_int)]
self._xml_empty_tag('a:gd', attributes)
self._xml_end_tag('a:avLst')
else:
self._xml_empty_tag('a:avLst')
def _write_a_solid_fill(self, rgb):
# Write the <a:solidFill> element.
if rgb is None:
rgb = 'FFFFFF'
self._xml_start_tag('a:solidFill')
# Write the a:srgbClr element.
self._write_a_srgb_clr(rgb)
self._xml_end_tag('a:solidFill')
def _write_a_solid_fill_scheme(self, color, shade=None):
attributes = [('val', color)]
self._xml_start_tag('a:solidFill')
if shade:
self._xml_start_tag('a:schemeClr', attributes)
self._write_a_shade(shade)
self._xml_end_tag('a:schemeClr')
else:
self._xml_empty_tag('a:schemeClr', attributes)
self._xml_end_tag('a:solidFill')
def _write_a_ln(self, line):
# Write the <a:ln> element.
width = line.get('width', 0.75)
# Round width to nearest 0.25, like Excel.
width = int((width + 0.125) * 4) / 4.0
# Convert to internal units.
width = int(0.5 + (12700 * width))
attributes = [
('w', width),
('cmpd', 'sng')
]
self._xml_start_tag('a:ln', attributes)
if 'none' in line:
# Write the a:noFill element.
self._xml_empty_tag('a:noFill')
elif 'color' in line:
# Write the a:solidFill element.
self._write_a_solid_fill(get_rgb_color(line['color']))
else:
# Write the a:solidFill element.
self._write_a_solid_fill_scheme('lt1', '50000')
# Write the line/dash type.
line_type = line.get('dash_type')
if line_type:
# Write the a:prstDash element.
self._write_a_prst_dash(line_type)
self._xml_end_tag('a:ln')
def _write_tx_body(self, col_absolute, row_absolute, width, height, shape):
# Write the <xdr:txBody> element.
attributes = [
('wrap', "square"),
('rtlCol', "0"),
]
if not shape.align['defined']:
attributes.append(('anchor', 't'))
else:
if 'vertical' in shape.align:
align = shape.align['vertical']
if align == 'top':
attributes.append(('anchor', 't'))
elif align == 'middle':
attributes.append(('anchor', 'ctr'))
elif align == 'bottom':
attributes.append(('anchor', 'b'))
else:
attributes.append(('anchor', 't'))
if 'horizontal' in shape.align:
align = shape.align['horizontal']
if align == 'center':
attributes.append(('anchorCtr', '1'))
else:
attributes.append(('anchorCtr', '0'))
self._xml_start_tag('xdr:txBody')
self._xml_empty_tag('a:bodyPr', attributes)
self._xml_empty_tag('a:lstStyle')
lines = shape.text.split('\n')
# Set the font attributes.
font = shape.font
style_attrs = Shape._get_font_style_attributes(font)
latin_attrs = Shape._get_font_latin_attributes(font)
style_attrs.insert(0, ('lang', font['lang']))
for line in lines:
self._xml_start_tag('a:p')
if line == '':
self._write_font_run(font, style_attrs, latin_attrs,
'a:endParaRPr')
self._xml_end_tag('a:p')
continue
self._xml_start_tag('a:r')
self._write_font_run(font, style_attrs, latin_attrs, 'a:rPr')
self._xml_data_element('a:t', line)
self._xml_end_tag('a:r')
self._xml_end_tag('a:p')
self._xml_end_tag('xdr:txBody')
def _write_font_run(self, font, style_attrs, latin_attrs, run_type):
# Write a:rPr or a:endParaRPr.
if font.get('color') is not None:
has_color = True
else:
has_color = False
if latin_attrs or has_color:
self._xml_start_tag(run_type, style_attrs)
if has_color:
self._write_a_solid_fill(get_rgb_color(font['color']))
if latin_attrs:
self._write_a_latin(latin_attrs)
self._write_a_cs(latin_attrs)
self._xml_end_tag(run_type)
else:
self._xml_empty_tag(run_type, style_attrs)
def _write_style(self):
# Write the <xdr:style> element.
self._xml_start_tag('xdr:style')
# Write the a:lnRef element.
self._write_a_ln_ref()
# Write the a:fillRef element.
self._write_a_fill_ref()
# Write the a:effectRef element.
self._write_a_effect_ref()
# Write the a:fontRef element.
self._write_a_font_ref()
self._xml_end_tag('xdr:style')
def _write_a_ln_ref(self):
# Write the <a:lnRef> element.
attributes = [('idx', '0')]
self._xml_start_tag('a:lnRef', attributes)
# Write the a:scrgbClr element.
self._write_a_scrgb_clr()
self._xml_end_tag('a:lnRef')
def _write_a_fill_ref(self):
# Write the <a:fillRef> element.
attributes = [('idx', '0')]
self._xml_start_tag('a:fillRef', attributes)
# Write the a:scrgbClr element.
self._write_a_scrgb_clr()
self._xml_end_tag('a:fillRef')
def _write_a_effect_ref(self):
# Write the <a:effectRef> element.
attributes = [('idx', '0')]
self._xml_start_tag('a:effectRef', attributes)
# Write the a:scrgbClr element.
self._write_a_scrgb_clr()
self._xml_end_tag('a:effectRef')
def _write_a_scrgb_clr(self):
# Write the <a:scrgbClr> element.
attributes = [
('r', '0'),
('g', '0'),
('b', '0'),
]
self._xml_empty_tag('a:scrgbClr', attributes)
def _write_a_font_ref(self):
# Write the <a:fontRef> element.
attributes = [('idx', 'minor')]
self._xml_start_tag('a:fontRef', attributes)
# Write the a:schemeClr element.
self._write_a_scheme_clr('dk1')
self._xml_end_tag('a:fontRef')
def _write_a_scheme_clr(self, val):
# Write the <a:schemeClr> element.
attributes = [('val', val)]
self._xml_empty_tag('a:schemeClr', attributes)
def _write_a_shade(self, shade):
# Write the <a:shade> element.
attributes = [('val', shade)]
self._xml_empty_tag('a:shade', attributes)
def _write_a_prst_dash(self, val):
# Write the <a:prstDash> element.
attributes = [('val', val)]
self._xml_empty_tag('a:prstDash', attributes)
def _write_a_grad_fill(self, gradient):
# Write the <a:gradFill> element.
attributes = [('flip', 'none'), ('rotWithShape', '1')]
if gradient['type'] == 'linear':
attributes = []
self._xml_start_tag('a:gradFill', attributes)
# Write the a:gsLst element.
self._write_a_gs_lst(gradient)
if gradient['type'] == 'linear':
# Write the a:lin element.
self._write_a_lin(gradient['angle'])
else:
# Write the a:path element.
self._write_a_path(gradient['type'])
# Write the a:tileRect element.
self._write_a_tile_rect(gradient['type'])
self._xml_end_tag('a:gradFill')
def _write_a_gs_lst(self, gradient):
# Write the <a:gsLst> element.
positions = gradient['positions']
colors = gradient['colors']
self._xml_start_tag('a:gsLst')
for i in range(len(colors)):
pos = int(positions[i] * 1000)
attributes = [('pos', pos)]
self._xml_start_tag('a:gs', attributes)
# Write the a:srgbClr element.
# TODO: Wait for a feature request to support transparency.
color = get_rgb_color(colors[i])
self._write_a_srgb_clr(color)
self._xml_end_tag('a:gs')
self._xml_end_tag('a:gsLst')
def _write_a_lin(self, angle):
# Write the <a:lin> element.
angle = int(60000 * angle)
attributes = [
('ang', angle),
('scaled', '0'),
]
self._xml_empty_tag('a:lin', attributes)
def _write_a_path(self, gradient_type):
# Write the <a:path> element.
attributes = [('path', gradient_type)]
self._xml_start_tag('a:path', attributes)
# Write the a:fillToRect element.
self._write_a_fill_to_rect(gradient_type)
self._xml_end_tag('a:path')
def _write_a_fill_to_rect(self, gradient_type):
# Write the <a:fillToRect> element.
l = '100000'
t = '100000'
if gradient_type == 'shape':
attributes = [
('l', '50000'),
('t', '50000'),
('r', '50000'),
('b', '50000'),
]
else:
attributes = [
('l', '100000'),
('t', '100000'),
]
self._xml_empty_tag('a:fillToRect', attributes)
def _write_a_tile_rect(self, gradient_type):
# Write the <a:tileRect> element.
if gradient_type == 'shape':
attributes = []
else:
attributes = [
('r', '-100000'),
('b', '-100000'),
]
self._xml_empty_tag('a:tileRect', attributes)
def _write_a_srgb_clr(self, val):
# Write the <a:srgbClr> element.
attributes = [('val', val)]
self._xml_empty_tag('a:srgbClr', attributes)
def _write_a_latin(self, attributes):
# Write the <a:latin> element.
self._xml_empty_tag('a:latin', attributes)
def _write_a_cs(self, attributes):
# Write the <a:latin> element.
self._xml_empty_tag('a:cs', attributes)
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