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
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
|
# -*- coding: utf-8 -*-
"""
***************************************************************************
HelpEditionDialog.py
---------------------
Date : August 2012
Copyright : (C) 2012 by Victor Olaya
Email : volayaf at gmail dot com
***************************************************************************
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
***************************************************************************
"""
__author__ = 'Victor Olaya'
__date__ = 'August 2012'
__copyright__ = '(C) 2012, Victor Olaya'
# This will get replaced with a git SHA1 when you do a git archive
__revision__ = '$Format:%H$'
import os
import json
from PyQt4.QtCore import *
from PyQt4.QtGui import *
from qgis.core import *
from processing.ui.ui_DlgHelpEdition import Ui_DlgHelpEdition
from processing.core.ProcessingLog import ProcessingLog
class HelpEditionDialog(QDialog, Ui_DlgHelpEdition):
ALG_DESC = 'ALG_DESC'
ALG_CREATOR = 'ALG_CREATOR'
ALG_HELP_CREATOR = 'ALG_HELP_CREATOR'
ALG_VERSION = 'ALG_VERSION'
def __init__(self, alg):
QDialog.__init__(self)
self.setupUi(self)
self.alg = alg
self.descriptions = {}
if self.alg.descriptionFile is not None:
helpfile = alg.descriptionFile + '.help'
if os.path.exists(helpfile):
try:
with open(helpfile) as f:
self.descriptions = json.load(f)
except Exception, e:
print e
ProcessingLog.addToLog(ProcessingLog.LOG_WARNING, "Cannot open help file: " + helpfile)
self.currentName = self.ALG_DESC
if self.ALG_DESC in self.descriptions:
self.text.setText(self.descriptions[self.ALG_DESC])
self.tree.itemClicked.connect(self.changeItem)
self.fillTree()
self.updateHtmlView()
def reject(self):
self.descriptions = None
QDialog.reject(self)
def accept(self):
self.descriptions[self.currentName] = unicode(self.text.toPlainText())
if self.alg.descriptionFile is not None:
try:
with open(self.alg.descriptionFile + '.help', 'w') as f:
json.dump(self.descriptions, f)
except Exception, e:
QMessageBox.warning(self, 'Error saving help file',
'Help file could not be saved.\n'
'Check that you have permission to modify the help\n'
'file. You might not have permission if you are \n'
'editing an example model or script, since they \n'
'are stored on the installation folder')
QDialog.accept(self)
def getHtml(self):
s = '<h2>Algorithm description</h2>\n'
s += '<p>' + self.getDescription(self.ALG_DESC) + '</p>\n'
s += '<h2>Input parameters</h2>\n'
for param in self.alg.parameters:
s += '<h3>' + param.description + '</h3>\n'
s += '<p>' + self.getDescription(param.name) + '</p>\n'
s += '<h2>Outputs</h2>\n'
for out in self.alg.outputs:
s += '<h3>' + out.description + '</h3>\n'
s += '<p>' + self.getDescription(out.name) + '</p>\n'
return s
def fillTree(self):
item = TreeDescriptionItem('Algorithm description', self.ALG_DESC)
self.tree.addTopLevelItem(item)
parametersItem = TreeDescriptionItem('Input parameters', None)
self.tree.addTopLevelItem(parametersItem)
for param in self.alg.parameters:
item = TreeDescriptionItem(param.description, param.name)
parametersItem.addChild(item)
outputsItem = TreeDescriptionItem(self.tr('Outputs'), None)
self.tree.addTopLevelItem(outputsItem)
for out in self.alg.outputs:
item = TreeDescriptionItem(out.description, out.name)
outputsItem.addChild(item)
item = TreeDescriptionItem('Algorithm created by', self.ALG_CREATOR)
self.tree.addTopLevelItem(item)
item = TreeDescriptionItem('Algorithm help written by',
self.ALG_HELP_CREATOR)
self.tree.addTopLevelItem(item)
item = TreeDescriptionItem('Algorithm version',
self.ALG_VERSION)
self.tree.addTopLevelItem(item)
def changeItem(self):
item = self.tree.currentItem()
if isinstance(item, TreeDescriptionItem):
if self.currentName:
self.descriptions[self.currentName] = \
unicode(self.text.toPlainText())
name = item.name
if name:
self.text.setEnabled(True)
self.updateHtmlView()
self.currentName = name
if name in self.descriptions:
self.text.setText(self.descriptions[name])
else:
self.text.clear()
else:
self.currentName = None
self.text.clear()
self.text.setEnabled(False)
self.updateHtmlView()
def updateHtmlView(self):
self.webView.setHtml(self.getHtml())
def getDescription(self, name):
if name in self.descriptions:
return self.descriptions[name].replace('\n', '<br>')
else:
return ''
class TreeDescriptionItem(QTreeWidgetItem):
def __init__(self, description, name):
QTreeWidgetItem.__init__(self)
self.name = name
self.description = description
self.setText(0, description)
|
