Mercurial > fife-parpg

annotate engine/extensions/pychan/widgets/layout.py @ 329:aca5744f017a

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Added fast path for Widget.findChild(name=name). Roughly 10x faster.
author phoku@33b003aa-7bff-0310-803a-e67f0ece8222
date Mon, 24 Aug 2009 10:01:06 +0000
parents d8bcff5f7222
children 48c99636453e
rev   line source
249
1cc51d145af9 Further split up the containers.py; bugfix.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
1 # -*- coding: utf-8 -*-
1cc51d145af9 Further split up the containers.py; bugfix.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
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diff changeset
2
255
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 249
diff changeset
3 from pychan.attrs import IntAttr
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 249
diff changeset
4
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 249
diff changeset
5 AlignTop, AlignBottom, AlignLeft, AlignRight, AlignCenter = range(5)
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 249
diff changeset
6 def isLayouted(widget):
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 249
diff changeset
7 return isinstance(widget,LayoutBase)
249
1cc51d145af9 Further split up the containers.py; bugfix.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
8
1cc51d145af9 Further split up the containers.py; bugfix.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
9 class LayoutBase(object):
1cc51d145af9 Further split up the containers.py; bugfix.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
10 """
1cc51d145af9 Further split up the containers.py; bugfix.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
11 This class is at the core of the layout engine. The two MixIn classes L{VBoxLayoutMixin}
1cc51d145af9 Further split up the containers.py; bugfix.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
12 and L{HBoxLayoutMixin} specialise on this by reimplementing the C{resizeToContent} and
1cc51d145af9 Further split up the containers.py; bugfix.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
13 the C{expandContent} methods.
1cc51d145af9 Further split up the containers.py; bugfix.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
14
1cc51d145af9 Further split up the containers.py; bugfix.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
15 Dynamic Layouting
1cc51d145af9 Further split up the containers.py; bugfix.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
16 -----------------
1cc51d145af9 Further split up the containers.py; bugfix.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
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diff changeset
17
1cc51d145af9 Further split up the containers.py; bugfix.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
18 The layout is calculated in the L{Widget.show} method. Thus if you modify the layout,
255
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 249
diff changeset
19 by adding or removing child widgets for example, you have to call L{widgets.Widget.adaptLayout}
249
1cc51d145af9 Further split up the containers.py; bugfix.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
20 so that the changes ripple through the widget hierachy.
1cc51d145af9 Further split up the containers.py; bugfix.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
21
1cc51d145af9 Further split up the containers.py; bugfix.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
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diff changeset
22 Internals
1cc51d145af9 Further split up the containers.py; bugfix.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
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diff changeset
23 ---------
1cc51d145af9 Further split up the containers.py; bugfix.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
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diff changeset
24
1cc51d145af9 Further split up the containers.py; bugfix.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
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diff changeset
25 At the core the layout engine works in two passes:
1cc51d145af9 Further split up the containers.py; bugfix.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
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diff changeset
26
1cc51d145af9 Further split up the containers.py; bugfix.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
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diff changeset
27 Before a root widget loaded by the XML code is shown, its resizeToContent method
1cc51d145af9 Further split up the containers.py; bugfix.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
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diff changeset
28 is called recursively (walking the widget containment relation in post order).
1cc51d145af9 Further split up the containers.py; bugfix.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
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diff changeset
29 This shrinks all HBoxes and VBoxes to their minimum heigt and width.
1cc51d145af9 Further split up the containers.py; bugfix.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
30 After that the expandContent method is called recursively in the same order,
1cc51d145af9 Further split up the containers.py; bugfix.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
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diff changeset
31 which will re-align the widgets if there is space left AND if a Spacer is contained.
1cc51d145af9 Further split up the containers.py; bugfix.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
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diff changeset
32
1cc51d145af9 Further split up the containers.py; bugfix.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
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diff changeset
33 Inside bare Container instances (without a Layout MixIn) absolute positioning
1cc51d145af9 Further split up the containers.py; bugfix.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
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34 can be used.
1cc51d145af9 Further split up the containers.py; bugfix.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
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35 """
1cc51d145af9 Further split up the containers.py; bugfix.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
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diff changeset
36 def __init__(self,align = (AlignLeft,AlignTop), **kwargs):
1cc51d145af9 Further split up the containers.py; bugfix.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
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diff changeset
37 self.align = align
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
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diff changeset
38 self.spacer = []
249
1cc51d145af9 Further split up the containers.py; bugfix.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
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diff changeset
39 super(LayoutBase,self).__init__(**kwargs)
1cc51d145af9 Further split up the containers.py; bugfix.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
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40
1cc51d145af9 Further split up the containers.py; bugfix.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
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diff changeset
41 def addSpacer(self,spacer):
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
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diff changeset
42 self.spacer.append(spacer)
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1cc51d145af9 Further split up the containers.py; bugfix.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
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diff changeset
43 spacer.index = len(self.children)
1cc51d145af9 Further split up the containers.py; bugfix.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
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diff changeset
44
1cc51d145af9 Further split up the containers.py; bugfix.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
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diff changeset
45 def xdelta(self,widget):return 0
1cc51d145af9 Further split up the containers.py; bugfix.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
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diff changeset
46 def ydelta(self,widget):return 0
1cc51d145af9 Further split up the containers.py; bugfix.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
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47
255
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
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diff changeset
48 def _applyHeight(self, spacers = []):
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 249
diff changeset
49 y = self.border_size + self.margins[1]
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 249
diff changeset
50 ydelta = map(self.ydelta,self.children)
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 249
diff changeset
51 for index, child in enumerate(self.children):
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 249
diff changeset
52 while spacers and spacers[0].index == index:
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 249
diff changeset
53 y += spacers.pop(0).size
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
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diff changeset
54 child.y = y
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
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diff changeset
55 y += ydelta.pop(0)
249
1cc51d145af9 Further split up the containers.py; bugfix.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
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56
1cc51d145af9 Further split up the containers.py; bugfix.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
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diff changeset
57 def _adjustHeightWithSpacer(self):
1cc51d145af9 Further split up the containers.py; bugfix.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
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58 pass
1cc51d145af9 Further split up the containers.py; bugfix.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
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59
255
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
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diff changeset
60 def _applyWidth(self, spacers = []):
249
1cc51d145af9 Further split up the containers.py; bugfix.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
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diff changeset
61 x = self.border_size + self.margins[0]
1cc51d145af9 Further split up the containers.py; bugfix.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
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diff changeset
62 xdelta = map(self.xdelta,self.children)
255
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 249
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63 for index, child in enumerate(self.children):
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 249
diff changeset
64 while spacers and spacers[0].index == index:
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 249
diff changeset
65 x += spacers.pop(0).size
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 249
diff changeset
66 child.x = x
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1cc51d145af9 Further split up the containers.py; bugfix.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
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67 x += xdelta.pop(0)
1cc51d145af9 Further split up the containers.py; bugfix.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
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diff changeset
68
255
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
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69 def _expandWidthSpacer(self):
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 249
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70 xdelta = map(self.xdelta,self.children)
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 249
diff changeset
71 xdelta += [spacer.min_size for spacer in self.spacer]
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 249
diff changeset
72
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 249
diff changeset
73 available_space = self.width - 2*self.margins[0] - 2*self.border_size - self._extra_border[0]
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 249
diff changeset
74
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 249
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75 used_space = sum(xdelta)
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 249
diff changeset
76 if self.children:
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 249
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77 used_space -= self.padding
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 249
diff changeset
78 if used_space >= available_space:
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 249
diff changeset
79 return
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 249
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80
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
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81 expandable_items = self._getExpanders(vertical=False)
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
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82 #print "AS/US - before",self,[o.width for o in expandable_items]
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 249
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83 #print "SPACERS",self.spacer
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 249
diff changeset
84
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 249
diff changeset
85 index = 0
328
d8bcff5f7222 PyChan: adaptLayout performance fix.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
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86 n = len(expandable_items)
255
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 249
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87 while used_space < available_space and expandable_items:
328
d8bcff5f7222 PyChan: adaptLayout performance fix.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
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88 index = index % n
d8bcff5f7222 PyChan: adaptLayout performance fix.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 255
diff changeset
89 delta = (available_space - used_space) / n
d8bcff5f7222 PyChan: adaptLayout performance fix.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 255
diff changeset
90 if delta == 0:
d8bcff5f7222 PyChan: adaptLayout performance fix.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 255
diff changeset
91 delta = 1
255
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
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92
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
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93 expander = expandable_items[index]
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 249
diff changeset
94 old_width = expander.width
328
d8bcff5f7222 PyChan: adaptLayout performance fix.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
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95 expander.width += delta
d8bcff5f7222 PyChan: adaptLayout performance fix.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 255
diff changeset
96 delta = expander.width - old_width
d8bcff5f7222 PyChan: adaptLayout performance fix.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 255
diff changeset
97 if delta == 0:
255
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 249
diff changeset
98 expandable_items.pop(index)
328
d8bcff5f7222 PyChan: adaptLayout performance fix.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 255
diff changeset
99 n -= 1
255
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
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100 else:
328
d8bcff5f7222 PyChan: adaptLayout performance fix.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 255
diff changeset
101 used_space += delta
255
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 249
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102 index += 1
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 249
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103 #print "AS/US - after",self,[o.width for o in expandable_items]
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 249
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104 #print "SPACERS",self.spacer
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 249
diff changeset
105 self._applyWidth(spacers = self.spacer[:])
249
1cc51d145af9 Further split up the containers.py; bugfix.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
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106
1cc51d145af9 Further split up the containers.py; bugfix.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
107 def _expandHeightSpacer(self):
1cc51d145af9 Further split up the containers.py; bugfix.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
108 ydelta = map(self.ydelta,self.children)
255
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 249
diff changeset
109 ydelta += [spacer.min_size for spacer in self.spacer]
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 249
diff changeset
110
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 249
diff changeset
111 available_space = self.height - 2*self.margins[1] - 2*self.border_size - self._extra_border[1]
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 249
diff changeset
112
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 249
diff changeset
113 used_space = sum(ydelta)
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 249
diff changeset
114 if self.children:
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 249
diff changeset
115 used_space -= self.padding
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 249
diff changeset
116
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 249
diff changeset
117 if used_space >= available_space:
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 249
diff changeset
118 return
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 249
diff changeset
119
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 249
diff changeset
120 expandable_items = self._getExpanders(vertical=True)
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 249
diff changeset
121 #print "AS/US - before",self,[o.height for o in expandable_items]
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 249
diff changeset
122
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 249
diff changeset
123 index = 0
328
d8bcff5f7222 PyChan: adaptLayout performance fix.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 255
diff changeset
124 n = len(expandable_items)
255
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 249
diff changeset
125 while used_space < available_space and expandable_items:
328
d8bcff5f7222 PyChan: adaptLayout performance fix.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 255
diff changeset
126 index = index % n
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phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 255
diff changeset
127 delta = (available_space - used_space) / n
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phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 255
diff changeset
128 if delta == 0:
d8bcff5f7222 PyChan: adaptLayout performance fix.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 255
diff changeset
129 delta = 1
249
1cc51d145af9 Further split up the containers.py; bugfix.
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diff changeset
130
255
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 249
diff changeset
131 expander = expandable_items[index]
328
d8bcff5f7222 PyChan: adaptLayout performance fix.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 255
diff changeset
132 old_height = expander.height
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phoku@33b003aa-7bff-0310-803a-e67f0ece8222
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diff changeset
133 expander.height += delta
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phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 255
diff changeset
134 delta = expander.height - old_height
d8bcff5f7222 PyChan: adaptLayout performance fix.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 255
diff changeset
135 if delta == 0:
255
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 249
diff changeset
136 expandable_items.pop(index)
328
d8bcff5f7222 PyChan: adaptLayout performance fix.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 255
diff changeset
137 n -= 1
255
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 249
diff changeset
138 else:
328
d8bcff5f7222 PyChan: adaptLayout performance fix.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 255
diff changeset
139 used_space += delta
255
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 249
diff changeset
140 index += 1
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
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diff changeset
141
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 249
diff changeset
142 #print "AS/US - after",self,[o.height for o in expandable_items]
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 249
diff changeset
143 self._applyHeight(spacers = self.spacer[:])
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
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diff changeset
144
249
1cc51d145af9 Further split up the containers.py; bugfix.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
145
255
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 249
diff changeset
146 def _getExpanders(self,vertical=True):
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 249
diff changeset
147 expanders = []
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 249
diff changeset
148 spacers = self.spacer[:]
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 249
diff changeset
149 for index, child in enumerate(self.children):
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 249
diff changeset
150 if spacers and spacers[0].index == index:
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 249
diff changeset
151 expanders.append( spacers.pop(0) )
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 249
diff changeset
152 if child.vexpand and vertical:
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 249
diff changeset
153 expanders += [child]*child.vexpand
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 249
diff changeset
154 if child.hexpand and not vertical:
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 249
diff changeset
155 expanders += [child]*child.hexpand
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 249
diff changeset
156 return expanders + spacers
249
1cc51d145af9 Further split up the containers.py; bugfix.
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parents:
diff changeset
157
255
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 249
diff changeset
158 def _resetSpacers(self):
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 249
diff changeset
159 for spacer in self.spacer:
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parents: 249
diff changeset
160 spacer.size = 0
249
1cc51d145af9 Further split up the containers.py; bugfix.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
161
1cc51d145af9 Further split up the containers.py; bugfix.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
162 class VBoxLayoutMixin(LayoutBase):
1cc51d145af9 Further split up the containers.py; bugfix.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
163 """
1cc51d145af9 Further split up the containers.py; bugfix.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
164 A mixin class for a vertical layout. Do not use directly.
1cc51d145af9 Further split up the containers.py; bugfix.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
165 """
1cc51d145af9 Further split up the containers.py; bugfix.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
166 def __init__(self,**kwargs):
1cc51d145af9 Further split up the containers.py; bugfix.
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parents:
diff changeset
167 super(VBoxLayoutMixin,self).__init__(**kwargs)
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phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
168
1cc51d145af9 Further split up the containers.py; bugfix.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
169 def resizeToContent(self, recurse = True):
255
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parents: 249
diff changeset
170 self._resetSpacers()
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diff changeset
171
249
1cc51d145af9 Further split up the containers.py; bugfix.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
172 max_w = self.getMaxChildrenWidth()
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phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
173 x = self.margins[0] + self.border_size
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phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
174 y = self.margins[1] + self.border_size
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parents:
diff changeset
175 for widget in self.children:
1cc51d145af9 Further split up the containers.py; bugfix.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
176 widget.width = max_w
1cc51d145af9 Further split up the containers.py; bugfix.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
177 y += widget.height + self.padding
1cc51d145af9 Further split up the containers.py; bugfix.
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parents:
diff changeset
178
255
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 249
diff changeset
179 if self.children:
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 249
diff changeset
180 y -= self.padding
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 249
diff changeset
181
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 249
diff changeset
182 y += sum([spacer.min_size for spacer in self.spacer])
249
1cc51d145af9 Further split up the containers.py; bugfix.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
183
255
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 249
diff changeset
184 self.height = y + self.margins[1] + self.border_size + self._extra_border[1]
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 249
diff changeset
185 self.width = max_w + 2*x + self._extra_border[0]
249
1cc51d145af9 Further split up the containers.py; bugfix.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
186
255
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 249
diff changeset
187 self._applyHeight(spacers = self.spacer[:])
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 249
diff changeset
188 self._applyWidth()
249
1cc51d145af9 Further split up the containers.py; bugfix.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
189
1cc51d145af9 Further split up the containers.py; bugfix.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
190 def expandContent(self):
255
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 249
diff changeset
191 self._expandHeightSpacer()
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 249
diff changeset
192 if not self.hexpand and self.parent:return
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 249
diff changeset
193 for widget in self.children:
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 249
diff changeset
194 widget.width = self.width - 2*self.margins[0] - 2*self.border_size - self._extra_border[0]
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 249
diff changeset
195
249
1cc51d145af9 Further split up the containers.py; bugfix.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
196
1cc51d145af9 Further split up the containers.py; bugfix.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
197 def ydelta(self,widget):return widget.height + self.padding
1cc51d145af9 Further split up the containers.py; bugfix.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
198
1cc51d145af9 Further split up the containers.py; bugfix.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
199 class HBoxLayoutMixin(LayoutBase):
1cc51d145af9 Further split up the containers.py; bugfix.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
200 """
1cc51d145af9 Further split up the containers.py; bugfix.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
201 A mixin class for a horizontal layout. Do not use directly.
1cc51d145af9 Further split up the containers.py; bugfix.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
202 """
1cc51d145af9 Further split up the containers.py; bugfix.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
203 def __init__(self,**kwargs):
1cc51d145af9 Further split up the containers.py; bugfix.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
204 super(HBoxLayoutMixin,self).__init__(**kwargs)
1cc51d145af9 Further split up the containers.py; bugfix.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
205
1cc51d145af9 Further split up the containers.py; bugfix.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
206 def resizeToContent(self, recurse = True):
255
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 249
diff changeset
207 self._resetSpacers()
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 249
diff changeset
208
249
1cc51d145af9 Further split up the containers.py; bugfix.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
209 max_h = self.getMaxChildrenHeight()
1cc51d145af9 Further split up the containers.py; bugfix.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
210 x = self.margins[0] + self.border_size
1cc51d145af9 Further split up the containers.py; bugfix.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
211 y = self.margins[1] + self.border_size
1cc51d145af9 Further split up the containers.py; bugfix.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
212 for widget in self.children:
1cc51d145af9 Further split up the containers.py; bugfix.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
213 widget.height = max_h
1cc51d145af9 Further split up the containers.py; bugfix.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
214 x += widget.width + self.padding
255
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 249
diff changeset
215 if self.children:
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 249
diff changeset
216 x -= self.padding
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 249
diff changeset
217 x += sum([spacer.min_size for spacer in self.spacer])
249
1cc51d145af9 Further split up the containers.py; bugfix.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
218
255
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 249
diff changeset
219 self.width = x + self.margins[0] + self._extra_border[0]
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 249
diff changeset
220 self.height = max_h + 2*y + self._extra_border[1]
249
1cc51d145af9 Further split up the containers.py; bugfix.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
221
255
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 249
diff changeset
222 self._applyHeight()
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 249
diff changeset
223 self._applyWidth(spacers = self.spacer[:])
249
1cc51d145af9 Further split up the containers.py; bugfix.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
224
1cc51d145af9 Further split up the containers.py; bugfix.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
225 def expandContent(self):
255
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 249
diff changeset
226 self._expandWidthSpacer()
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 249
diff changeset
227 if not self.vexpand and self.parent:return
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 249
diff changeset
228 for widget in self.children:
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 249
diff changeset
229 widget.height = self.height - 2*self.margins[1] - 2*self.border_size - self._extra_border[1]
249
1cc51d145af9 Further split up the containers.py; bugfix.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
230
1cc51d145af9 Further split up the containers.py; bugfix.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
231 def xdelta(self,widget):return widget.width + self.padding
255
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 249
diff changeset
232
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233 class Spacer(object):
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234 """ A spacer represents expandable or fixed 'whitespace' in the GUI.
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235
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236 In a XML file you can get this by adding a <Spacer /> inside a VBox or
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237 HBox element (Windows implicitly are VBox elements).
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238
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239 Attributes
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240 ----------
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241
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242 As with widgets a number of attributes can be set on a spacer (inside the XML definition).
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243
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244 - min_size: Int: The minimal size this Spacer is allowed to have.
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245 - max_size: Int: The maximal size this Spacer is allowed to have.
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246 - fixed_size: Int: Set min_size and max_size to the same vale - effectively a Fixed size spacer.
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247
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248 """
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249
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250 ATTRIBUTES = [
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251 IntAttr('min_size'), IntAttr('size'), IntAttr('max_size'),
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252 IntAttr('fixed_size'),
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253 ]
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254
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255 def __init__(self,parent=None,**kwargs):
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256 self.parent = parent
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257 self.min_size = 0
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258 self.max_size = 1000
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259 self.size = 0
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260
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261 def __str__(self):
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262 return "Spacer(parent.name='%s')" % getattr(self.__parent,'name','None')
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263
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264 def __repr__(self):
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265 return "<Spacer(parent.name='%s') at %x>" % (getattr(self.__parent,'name','None'),id(self))
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266
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267 def _getSize(self):
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268 self.size = self._size
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269 return self._size
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270 def _setSize(self,size):
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271 self._size = max(self.min_size, min(self.max_size,size))
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272 size = property(_getSize,_setSize)
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273
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274 # Alias for size
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275 width = property(_getSize,_setSize)
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276 height = property(_getSize,_setSize)
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277
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278 def _setFixedSize(self,size):
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279 self.min_size = self.max_size = size
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280 self.size = size
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281 fixed_size = property(fset=_setFixedSize)
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282
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283 def _isExpanding(self):
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284 if self.min_size < self.max_size:
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285 return 1
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286 return 0
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287 vexpand = property(_isExpanding)
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288 hexpand = property(_isExpanding)