source: src/mlx/gui/delaycodes.py@ 435:54d318811885

Last change on this file since 435:54d318811885 was 435:54d318811885, checked in by István Váradi <ivaradi@…>, 10 years ago

The basic logic of the delay codes table works (re #154)

File size: 11.8 KB
Line 
1# Module to handle the GUI aspects of the table of the delay codes
2
3#------------------------------------------------------------------------------
4
5from mlx.gui.common import *
6
7#------------------------------------------------------------------------------
8
9if pygobject:
10
11#------------------------------------------------------------------------------
12
13 class Viewport(gtk.Viewport):
14 """Viewport implementation that alleviates the problem with improper
15 resizing by the VBox."""
16 def __init__(self):
17 """Construct the viewport."""
18 gtk.Viewport.__init__(self)
19 self._recursive = False
20 self._vboxHeight = None
21
22 def setVBOXHeight(self, vboxHeight):
23 """Set the height of the VBox which will be used to calculate the
24 viewport's height."""
25 self._vboxHeight = vboxHeight
26
27 def do_size_allocate(self, allocation):
28 """Called when the viewport's size is allocated.
29
30 The height in the allocation object is modified so that it is only
31 so high to fit into the VBox."""
32 if self._vboxHeight is not None:
33 allocation.height = self._vboxHeight - allocation.y
34 self._vboxHeight = None
35 gtk.Viewport.do_size_allocate(self, allocation)
36
37 class DelayCodeTableBase(gtk.VBox, gtk.Scrollable):
38 """PyGObject-specific base class for the delay code table."""
39 __gproperties__ = {
40 "vscroll-policy" : ( gtk.ScrollablePolicy,
41 "vscroll-policy",
42 "The vertical scrolling policy",
43 gtk.ScrollablePolicy.MINIMUM,
44 gobject.PARAM_READWRITE ),
45 "vadjustment" : ( gtk.Adjustment,
46 "vadjustment",
47 "The vertical adjustment",
48 gobject.PARAM_READWRITE ),
49 "hscroll-policy" : ( gtk.ScrollablePolicy,
50 "hscroll-policy",
51 "The horizontal scrolling policy",
52 gtk.ScrollablePolicy.MINIMUM,
53 gobject.PARAM_READWRITE ),
54 "hadjustment" : ( gtk.Adjustment,
55 "hadjustment",
56 "The horizontal adjustment",
57 gobject.PARAM_READWRITE ) }
58
59
60 @staticmethod
61 def _createViewport():
62 """Create an instance of the viewport class used by this base class."""
63 return Viewport()
64
65 def __init__(self):
66 """Construct the delay code table."""
67 super(DelayCodeTableBase, self).__init__()
68
69 def do_size_allocate(self, allocation):
70 """Allocate the size for the table and its children.
71
72 This sets up the VBox height in the viewport and then calls the
73 do_size_allocate() function of VBox()."""
74 self._viewport.setVBOXHeight(allocation.height)
75 gtk.VBox.do_size_allocate(self, allocation)
76 self.allocate_column_sizes(allocation)
77
78 def do_get_property(self, prop):
79 """Get the value of one of the properties defined above.
80
81 The request is forwarded to the viewport."""
82 if prop.name=="vscroll-policy":
83 return self._viewport.get_vscroll_policy()
84 elif prop.name=="hscroll-policy":
85 return self._viewport.get_hscroll_policy()
86 elif prop.name=="vadjustment":
87 return self._viewport.get_vadjustment()
88 elif prop.name=="hadjustment":
89 return self._viewport.get_hadjustment()
90 else:
91 raise AttributeError("mlx.gui.delaycodes.DelayCodeTableBase: property %s is not handled in do_get_property" %
92 (prop.name,))
93
94 def do_set_property(self, prop, value):
95 """Set the value of the adjustment properties defined above.
96
97 The adjustments are forwarded to the viewport."""
98 if prop.name=="vadjustment":
99 self._viewport.set_vadjustment(value)
100 elif prop.name=="hadjustment":
101 self._viewport.set_hadjustment(value)
102 self._treeView.set_hadjustment(value)
103 else:
104 raise AttributeError("mlx.gui.delaycodes.DelayCodeTableBase: property %s is not handled in do_set_property" %
105 (prop.name,))
106
107 def setStyle(self):
108 """Set the style of the event box from the treeview."""
109
110 class Alignment(gtk.Alignment):
111 """An alignment that remembers the width it was given."""
112 def __init__(self, xalign = 0.0, yalign=0.0,
113 xscale = 0.0, yscale = 0.0 ):
114 """Construct the alignment."""
115 super(Alignment, self).__init__(xalign = xalign, yalign = yalign,
116 xscale = xscale, yscale = yscale)
117 self.allocatedWidth = 0
118
119 def do_size_allocate(self, allocation):
120 """Called with the new size allocation."""
121 self.allocatedWidth = allocation.width
122 gtk.Alignment.do_size_allocate(self, allocation)
123
124#------------------------------------------------------------------------------
125
126else: # pygobject
127
128#------------------------------------------------------------------------------
129
130 class DelayCodeTableBase (gtk.VBox):
131 """Base class of the delay code table for PyGtk."""
132
133 __gsignals__ = {
134 "set-scroll-adjustments": (
135 gobject.SIGNAL_RUN_LAST,
136 gobject.TYPE_NONE, (gtk.Adjustment, gtk.Adjustment))
137 }
138
139 @staticmethod
140 def _createViewport():
141 """Create an instance of the viewport class used by this base class."""
142 return gtk.Viewport()
143
144 def __init__(self):
145 """Construct the base class."""
146 super(DelayCodeTableBase, self).__init__()
147 self.set_set_scroll_adjustments_signal("set-scroll-adjustments")
148 self.connect("size-allocate", self._do_size_allocate)
149
150 def do_set_scroll_adjustments(self, hAdjustment, vAdjustment):
151 """Set the adjustments on the viewport."""
152 self._viewport.set_hadjustment(hAdjustment)
153 self._viewport.set_vadjustment(vAdjustment)
154 self._treeView.set_hadjustment(hAdjustment)
155
156 def _do_size_allocate(self, widget, allocation):
157 """Handler of the size-allocate signal.
158
159 Calls allocate_column_sizes()."""
160 self.allocate_column_sizes(allocation)
161
162 def setStyle(self):
163 """Set the style of the event box from the treeview."""
164 style = self._treeView.rc_get_style()
165 self._eventBox.modify_bg(0, style.bg[2])
166 self._eventBox.modify_fg(0, style.fg[2])
167
168
169 class Alignment(gtk.Alignment):
170 """An alignment that remembers the width it was given."""
171 def __init__(self, xalign = 0.0, yalign=0.0,
172 xscale = 0.0, yscale = 0.0 ):
173 """Construct the alignment."""
174 super(Alignment, self).__init__(xalign = xalign, yalign = yalign,
175 xscale = xscale, yscale = yscale)
176 self.allocatedWidth = 0
177 self.connect("size-allocate", self._do_size_allocate)
178
179 def _do_size_allocate(self, widget, allocation):
180 """Called with the new size allocation."""
181 self.allocatedWidth = allocation.width
182
183#------------------------------------------------------------------------------
184
185CAPTION = 1
186
187DELAYCODE = 2
188
189_data = ( ["Num", "Code", "Reason", "Description"],
190 [ (CAPTION, "Others"),
191 (DELAYCODE, (" 6", "OA ", "NO GATES/STAND AVAILABLE",
192 "Due to own airline activity")),
193 (DELAYCODE, ("9", "SG", "SCHEDULED GROUND TIME",
194 "Planned turnaround time less than declared minimum")),
195 (CAPTION, "Passenger and baggage"),
196 (DELAYCODE, ("11", "PD", "LATE CHECK-IN",
197 "Check-in reopened for late passengers")),
198 (DELAYCODE, ("12", "PL", "LATE CHECK-IN",
199 "Check-in not completed by flight closure time")),
200 (DELAYCODE, ("13", "PE", "CHECK-IN ERROR",
201 "Error with passenger or baggage details")) ] )
202
203#------------------------------------------------------------------------------
204
205class DelayCodeTable(DelayCodeTableBase):
206 """The delay code table."""
207 def __init__(self):
208 """Construct the delay code table."""
209 super(DelayCodeTable, self).__init__()
210
211 (headers, rows) = _data
212 numColumns = len(headers) + 1
213 numRows = len(rows)
214
215 self._listStore = gtk.ListStore(str, str)
216 self._treeView = gtk.TreeView(self._listStore)
217 self._treeView.set_rules_hint(True)
218
219 column = gtk.TreeViewColumn("", gtk.CellRendererText())
220 column.set_sizing(TREE_VIEW_COLUMN_FIXED)
221 self._treeView.append_column(column)
222
223 for header in headers:
224 column = gtk.TreeViewColumn(header, gtk.CellRendererText())
225 column.set_sizing(TREE_VIEW_COLUMN_FIXED)
226 self._treeView.append_column(column)
227
228 self.pack_start(self._treeView, False, False, 0)
229
230 self._alignments = []
231
232 self._eventBox = gtk.EventBox()
233
234 self._table = gtk.Table(numRows, numColumns)
235 self._table.set_homogeneous(False)
236 self._table.set_col_spacings(16)
237 self._table.set_row_spacings(4)
238
239 firstDelayCodeRow = True
240 for i in range(0, numRows):
241 (type, elements) = rows[i]
242 if type==CAPTION:
243 alignment = gtk.Alignment(xalign = 0.0, yalign = 0.5,
244 xscale = 1.0)
245 label = gtk.Label("<b>" + elements + "</b>")
246 label.set_use_markup(True)
247 label.set_alignment(0.0, 0.5)
248 alignment.add(label)
249 self._table.attach(alignment, 1, numColumns, i, i+1)
250 self._table.set_row_spacing(i, 8)
251 elif type==DELAYCODE:
252 alignment = Alignment(xalign = 0.5, yalign = 0.5, xscale = 1.0)
253 alignment.add(gtk.CheckButton())
254 self._table.attach(alignment, 0, 1, i, i+1)
255 if firstDelayCodeRow:
256 self._alignments.append(alignment)
257
258 for j in range(0, len(elements)):
259 label = gtk.Label(elements[j])
260 label.set_alignment(1.0 if j==0 else 0.0, 0.5)
261 alignment = Alignment(xalign = 0.5, yalign = 0.5,
262 xscale = 1.0)
263 alignment.add(label)
264 self._table.attach(alignment, j+1, j+2, i, i+1)
265 if firstDelayCodeRow:
266 self._alignments.append(alignment)
267 firstDelayCodeRow = False
268
269 self._viewport = self._createViewport()
270 self._eventBox.add(self._table)
271 self._viewport.add(self._eventBox)
272 self._viewport.set_shadow_type(SHADOW_NONE)
273
274 self.pack_start(self._viewport, True, True, 0)
275
276 self._previousWidth = 0
277
278 def allocate_column_sizes(self, allocation):
279 """Allocate the column sizes."""
280 if allocation.width!=self._previousWidth:
281 self._previousWidth = allocation.width
282 index = 0
283 for alignment in self._alignments:
284 column = self._treeView.get_column(index)
285 width = alignment.allocatedWidth + (8 if index==0 else 16)
286 column.set_fixed_width(width)
287 index += 1
288
289
290#------------------------------------------------------------------------------
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