1###############################################################################
2#
3# Chartsheet - A class for writing the Excel XLSX Worksheet file.
4#
5# SPDX-License-Identifier: BSD-2-Clause
6# Copyright 2013-2024, John McNamara, jmcnamara@cpan.org
7#
8
9from . import worksheet
10from .drawing import Drawing
11
12
13class Chartsheet(worksheet.Worksheet):
14 """
15 A class for writing the Excel XLSX Chartsheet file.
16
17
18 """
19
20 ###########################################################################
21 #
22 # Public API.
23 #
24 ###########################################################################
25
26 def __init__(self):
27 """
28 Constructor.
29
30 """
31
32 super(Chartsheet, self).__init__()
33
34 self.is_chartsheet = True
35 self.drawing = None
36 self.chart = None
37 self.charts = []
38 self.zoom_scale_normal = 0
39 self.orientation = 0
40 self.protection = False
41
42 def set_chart(self, chart):
43 """
44 Set the chart object for the chartsheet.
45 Args:
46 chart: Chart object.
47 Returns:
48 chart: A reference to the chart object.
49 """
50 chart.embedded = False
51 chart.protection = self.protection
52 self.chart = chart
53 self.charts.append([0, 0, chart, 0, 0, 1, 1])
54 return chart
55
56 def protect(self, password="", options=None):
57 """
58 Set the password and protection options of the worksheet.
59
60 Args:
61 password: An optional password string.
62 options: A dictionary of worksheet objects to protect.
63
64 Returns:
65 Nothing.
66
67 """
68 # This method is overridden from parent worksheet class.
69
70 # Chartsheets only allow a reduced set of protect options.
71 copy = {}
72
73 if not options:
74 options = {}
75
76 if options.get("objects") is None:
77 copy["objects"] = False
78 else:
79 # Objects are default on for chartsheets, so reverse state.
80 copy["objects"] = not options["objects"]
81
82 if options.get("content") is None:
83 copy["content"] = True
84 else:
85 copy["content"] = options["content"]
86
87 copy["sheet"] = False
88 copy["scenarios"] = True
89
90 # If objects and content are both off then the chartsheet isn't
91 # protected, unless it has a password.
92 if password == "" and copy["objects"] and not copy["content"]:
93 return
94
95 if self.chart:
96 self.chart.protection = True
97 else:
98 self.protection = True
99
100 # Call the parent method.
101 super(Chartsheet, self).protect(password, copy)
102
103 ###########################################################################
104 #
105 # Private API.
106 #
107 ###########################################################################
108 def _assemble_xml_file(self):
109 # Assemble and write the XML file.
110
111 # Write the XML declaration.
112 self._xml_declaration()
113
114 # Write the root worksheet element.
115 self._write_chartsheet()
116
117 # Write the worksheet properties.
118 self._write_sheet_pr()
119
120 # Write the sheet view properties.
121 self._write_sheet_views()
122
123 # Write the sheetProtection element.
124 self._write_sheet_protection()
125
126 # Write the printOptions element.
127 self._write_print_options()
128
129 # Write the worksheet page_margins.
130 self._write_page_margins()
131
132 # Write the worksheet page setup.
133 self._write_page_setup()
134
135 # Write the headerFooter element.
136 self._write_header_footer()
137
138 # Write the drawing element.
139 self._write_drawings()
140
141 # Write the legacyDrawingHF element.
142 self._write_legacy_drawing_hf()
143
144 # Close the worksheet tag.
145 self._xml_end_tag("chartsheet")
146
147 # Close the file.
148 self._xml_close()
149
150 def _prepare_chart(self, index, chart_id, drawing_id):
151 # Set up chart/drawings.
152
153 self.chart.id = chart_id - 1
154
155 self.drawing = Drawing()
156 self.drawing.orientation = self.orientation
157
158 self.external_drawing_links.append(
159 ["/drawing", "../drawings/drawing" + str(drawing_id) + ".xml"]
160 )
161
162 self.drawing_links.append(
163 ["/chart", "../charts/chart" + str(chart_id) + ".xml"]
164 )
165
166 ###########################################################################
167 #
168 # XML methods.
169 #
170 ###########################################################################
171
172 def _write_chartsheet(self):
173 # Write the <worksheet> element. This is the root element.
174
175 schema = "http://schemas.openxmlformats.org/"
176 xmlns = schema + "spreadsheetml/2006/main"
177 xmlns_r = schema + "officeDocument/2006/relationships"
178
179 attributes = [("xmlns", xmlns), ("xmlns:r", xmlns_r)]
180
181 self._xml_start_tag("chartsheet", attributes)
182
183 def _write_sheet_pr(self):
184 # Write the <sheetPr> element for Sheet level properties.
185 attributes = []
186
187 if self.filter_on:
188 attributes.append(("filterMode", 1))
189
190 if self.fit_page or self.tab_color:
191 self._xml_start_tag("sheetPr", attributes)
192 self._write_tab_color()
193 self._write_page_set_up_pr()
194 self._xml_end_tag("sheetPr")
195 else:
196 self._xml_empty_tag("sheetPr", attributes)