Mercurial > fife-parpg

annotate engine/extensions/pychan/widgets/layout.py @ 331:48c99636453e

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Added Licence header to all pypthon modules in extension/ Commit 3k, Yay :-)
author phoku@33b003aa-7bff-0310-803a-e67f0ece8222
date Mon, 24 Aug 2009 12:01:34 +0000
parents d8bcff5f7222
children 3a268cf93752
rev   line source
331
48c99636453e Added Licence header to all pypthon modules in extension/
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
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diff changeset
1 #!/usr/bin/env python
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2 # -*- coding: utf-8 -*-
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3
331
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4 # ####################################################################
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5 # Copyright (C) 2005-2009 by the FIFE team
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6 # http://www.fifengine.de
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7 # This file is part of FIFE.
48c99636453e Added Licence header to all pypthon modules in extension/
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
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8 #
48c99636453e Added Licence header to all pypthon modules in extension/
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
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9 # FIFE is free software; you can redistribute it and/or
48c99636453e Added Licence header to all pypthon modules in extension/
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10 # modify it under the terms of the GNU Lesser General Public
48c99636453e Added Licence header to all pypthon modules in extension/
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11 # License as published by the Free Software Foundation; either
48c99636453e Added Licence header to all pypthon modules in extension/
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
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12 # version 2.1 of the License, or (at your option) any later version.
48c99636453e Added Licence header to all pypthon modules in extension/
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
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13 #
48c99636453e Added Licence header to all pypthon modules in extension/
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
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14 # This library is distributed in the hope that it will be useful,
48c99636453e Added Licence header to all pypthon modules in extension/
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
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15 # but WITHOUT ANY WARRANTY; without even the implied warranty of
48c99636453e Added Licence header to all pypthon modules in extension/
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
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16 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
48c99636453e Added Licence header to all pypthon modules in extension/
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
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17 # Lesser General Public License for more details.
48c99636453e Added Licence header to all pypthon modules in extension/
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
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18 #
48c99636453e Added Licence header to all pypthon modules in extension/
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
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19 # You should have received a copy of the GNU Lesser General Public
48c99636453e Added Licence header to all pypthon modules in extension/
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
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20 # License along with this library; if not, write to the
48c99636453e Added Licence header to all pypthon modules in extension/
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
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21 # Free Software Foundation, Inc.,
48c99636453e Added Licence header to all pypthon modules in extension/
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22 # 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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phoku@33b003aa-7bff-0310-803a-e67f0ece8222
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23 # ####################################################################
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24
255
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25 from pychan.attrs import IntAttr
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26
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27 AlignTop, AlignBottom, AlignLeft, AlignRight, AlignCenter = range(5)
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28 def isLayouted(widget):
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29 return isinstance(widget,LayoutBase)
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30
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31 class LayoutBase(object):
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32 """
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33 This class is at the core of the layout engine. The two MixIn classes L{VBoxLayoutMixin}
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34 and L{HBoxLayoutMixin} specialise on this by reimplementing the C{resizeToContent} and
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35 the C{expandContent} methods.
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36
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37 Dynamic Layouting
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phoku@33b003aa-7bff-0310-803a-e67f0ece8222
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38 -----------------
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39
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40 The layout is calculated in the L{Widget.show} method. Thus if you modify the layout,
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41 by adding or removing child widgets for example, you have to call L{widgets.Widget.adaptLayout}
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42 so that the changes ripple through the widget hierachy.
1cc51d145af9 Further split up the containers.py; bugfix.
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43
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44 Internals
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45 ---------
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46
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47 At the core the layout engine works in two passes:
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48
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49 Before a root widget loaded by the XML code is shown, its resizeToContent method
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50 is called recursively (walking the widget containment relation in post order).
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51 This shrinks all HBoxes and VBoxes to their minimum heigt and width.
1cc51d145af9 Further split up the containers.py; bugfix.
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52 After that the expandContent method is called recursively in the same order,
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53 which will re-align the widgets if there is space left AND if a Spacer is contained.
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54
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55 Inside bare Container instances (without a Layout MixIn) absolute positioning
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56 can be used.
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57 """
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58 def __init__(self,align = (AlignLeft,AlignTop), **kwargs):
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59 self.align = align
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60 self.spacer = []
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61 super(LayoutBase,self).__init__(**kwargs)
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62
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63 def addSpacer(self,spacer):
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64 self.spacer.append(spacer)
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65 spacer.index = len(self.children)
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66
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67 def xdelta(self,widget):return 0
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68 def ydelta(self,widget):return 0
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69
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70 def _applyHeight(self, spacers = []):
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71 y = self.border_size + self.margins[1]
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72 ydelta = map(self.ydelta,self.children)
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73 for index, child in enumerate(self.children):
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74 while spacers and spacers[0].index == index:
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75 y += spacers.pop(0).size
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76 child.y = y
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77 y += ydelta.pop(0)
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78
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79 def _adjustHeightWithSpacer(self):
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80 pass
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81
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82 def _applyWidth(self, spacers = []):
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83 x = self.border_size + self.margins[0]
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84 xdelta = map(self.xdelta,self.children)
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85 for index, child in enumerate(self.children):
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86 while spacers and spacers[0].index == index:
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87 x += spacers.pop(0).size
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88 child.x = x
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89 x += xdelta.pop(0)
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90
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91 def _expandWidthSpacer(self):
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92 xdelta = map(self.xdelta,self.children)
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93 xdelta += [spacer.min_size for spacer in self.spacer]
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94
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95 available_space = self.width - 2*self.margins[0] - 2*self.border_size - self._extra_border[0]
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96
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97 used_space = sum(xdelta)
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98 if self.children:
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99 used_space -= self.padding
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100 if used_space >= available_space:
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
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101 return
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102
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103 expandable_items = self._getExpanders(vertical=False)
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104 #print "AS/US - before",self,[o.width for o in expandable_items]
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105 #print "SPACERS",self.spacer
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106
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107 index = 0
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108 n = len(expandable_items)
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109 while used_space < available_space and expandable_items:
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110 index = index % n
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111 delta = (available_space - used_space) / n
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112 if delta == 0:
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113 delta = 1
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114
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parents: 249
diff changeset
115 expander = expandable_items[index]
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 249
diff changeset
116 old_width = expander.width
328
d8bcff5f7222 PyChan: adaptLayout performance fix.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 255
diff changeset
117 expander.width += delta
d8bcff5f7222 PyChan: adaptLayout performance fix.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 255
diff changeset
118 delta = expander.width - old_width
d8bcff5f7222 PyChan: adaptLayout performance fix.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 255
diff changeset
119 if delta == 0:
255
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 249
diff changeset
120 expandable_items.pop(index)
328
d8bcff5f7222 PyChan: adaptLayout performance fix.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 255
diff changeset
121 n -= 1
255
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 249
diff changeset
122 else:
328
d8bcff5f7222 PyChan: adaptLayout performance fix.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 255
diff changeset
123 used_space += delta
255
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 249
diff changeset
124 index += 1
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 249
diff changeset
125 #print "AS/US - after",self,[o.width for o in expandable_items]
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 249
diff changeset
126 #print "SPACERS",self.spacer
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 249
diff changeset
127 self._applyWidth(spacers = self.spacer[:])
249
1cc51d145af9 Further split up the containers.py; bugfix.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
128
1cc51d145af9 Further split up the containers.py; bugfix.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
129 def _expandHeightSpacer(self):
1cc51d145af9 Further split up the containers.py; bugfix.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
130 ydelta = map(self.ydelta,self.children)
255
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 249
diff changeset
131 ydelta += [spacer.min_size for spacer in self.spacer]
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 249
diff changeset
132
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 249
diff changeset
133 available_space = self.height - 2*self.margins[1] - 2*self.border_size - self._extra_border[1]
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 249
diff changeset
134
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 249
diff changeset
135 used_space = sum(ydelta)
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 249
diff changeset
136 if self.children:
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 249
diff changeset
137 used_space -= self.padding
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 249
diff changeset
138
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 249
diff changeset
139 if used_space >= available_space:
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 249
diff changeset
140 return
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 249
diff changeset
141
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 249
diff changeset
142 expandable_items = self._getExpanders(vertical=True)
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 249
diff changeset
143 #print "AS/US - before",self,[o.height for o in expandable_items]
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 249
diff changeset
144
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 249
diff changeset
145 index = 0
328
d8bcff5f7222 PyChan: adaptLayout performance fix.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 255
diff changeset
146 n = len(expandable_items)
255
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 249
diff changeset
147 while used_space < available_space and expandable_items:
328
d8bcff5f7222 PyChan: adaptLayout performance fix.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 255
diff changeset
148 index = index % n
d8bcff5f7222 PyChan: adaptLayout performance fix.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 255
diff changeset
149 delta = (available_space - used_space) / n
d8bcff5f7222 PyChan: adaptLayout performance fix.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 255
diff changeset
150 if delta == 0:
d8bcff5f7222 PyChan: adaptLayout performance fix.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 255
diff changeset
151 delta = 1
249
1cc51d145af9 Further split up the containers.py; bugfix.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
152
255
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 249
diff changeset
153 expander = expandable_items[index]
328
d8bcff5f7222 PyChan: adaptLayout performance fix.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 255
diff changeset
154 old_height = expander.height
d8bcff5f7222 PyChan: adaptLayout performance fix.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 255
diff changeset
155 expander.height += delta
d8bcff5f7222 PyChan: adaptLayout performance fix.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 255
diff changeset
156 delta = expander.height - old_height
d8bcff5f7222 PyChan: adaptLayout performance fix.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 255
diff changeset
157 if delta == 0:
255
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 249
diff changeset
158 expandable_items.pop(index)
328
d8bcff5f7222 PyChan: adaptLayout performance fix.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 255
diff changeset
159 n -= 1
255
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 249
diff changeset
160 else:
328
d8bcff5f7222 PyChan: adaptLayout performance fix.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 255
diff changeset
161 used_space += delta
255
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 249
diff changeset
162 index += 1
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 249
diff changeset
163
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 249
diff changeset
164 #print "AS/US - after",self,[o.height for o in expandable_items]
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 249
diff changeset
165 self._applyHeight(spacers = self.spacer[:])
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 249
diff changeset
166
249
1cc51d145af9 Further split up the containers.py; bugfix.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
167
255
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 249
diff changeset
168 def _getExpanders(self,vertical=True):
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 249
diff changeset
169 expanders = []
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 249
diff changeset
170 spacers = self.spacer[:]
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 249
diff changeset
171 for index, child in enumerate(self.children):
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 249
diff changeset
172 if spacers and spacers[0].index == index:
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 249
diff changeset
173 expanders.append( spacers.pop(0) )
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 249
diff changeset
174 if child.vexpand and vertical:
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 249
diff changeset
175 expanders += [child]*child.vexpand
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 249
diff changeset
176 if child.hexpand and not vertical:
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 249
diff changeset
177 expanders += [child]*child.hexpand
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 249
diff changeset
178 return expanders + spacers
249
1cc51d145af9 Further split up the containers.py; bugfix.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
179
255
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 249
diff changeset
180 def _resetSpacers(self):
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 249
diff changeset
181 for spacer in self.spacer:
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 249
diff changeset
182 spacer.size = 0
249
1cc51d145af9 Further split up the containers.py; bugfix.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
183
1cc51d145af9 Further split up the containers.py; bugfix.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
184 class VBoxLayoutMixin(LayoutBase):
1cc51d145af9 Further split up the containers.py; bugfix.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
185 """
1cc51d145af9 Further split up the containers.py; bugfix.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
186 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
187 """
1cc51d145af9 Further split up the containers.py; bugfix.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
188 def __init__(self,**kwargs):
1cc51d145af9 Further split up the containers.py; bugfix.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
189 super(VBoxLayoutMixin,self).__init__(**kwargs)
1cc51d145af9 Further split up the containers.py; bugfix.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
190
1cc51d145af9 Further split up the containers.py; bugfix.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
191 def resizeToContent(self, recurse = True):
255
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 249
diff changeset
192 self._resetSpacers()
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 249
diff changeset
193
249
1cc51d145af9 Further split up the containers.py; bugfix.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
194 max_w = self.getMaxChildrenWidth()
1cc51d145af9 Further split up the containers.py; bugfix.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
195 x = self.margins[0] + self.border_size
1cc51d145af9 Further split up the containers.py; bugfix.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
196 y = self.margins[1] + self.border_size
1cc51d145af9 Further split up the containers.py; bugfix.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
197 for widget in self.children:
1cc51d145af9 Further split up the containers.py; bugfix.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
198 widget.width = max_w
1cc51d145af9 Further split up the containers.py; bugfix.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
199 y += widget.height + self.padding
1cc51d145af9 Further split up the containers.py; bugfix.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
200
255
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 249
diff changeset
201 if self.children:
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 249
diff changeset
202 y -= self.padding
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 249
diff changeset
203
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 249
diff changeset
204 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
205
255
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 249
diff changeset
206 self.height = y + self.margins[1] + self.border_size + self._extra_border[1]
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 249
diff changeset
207 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
208
255
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 249
diff changeset
209 self._applyHeight(spacers = self.spacer[:])
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 249
diff changeset
210 self._applyWidth()
249
1cc51d145af9 Further split up the containers.py; bugfix.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
211
1cc51d145af9 Further split up the containers.py; bugfix.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
212 def expandContent(self):
255
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 249
diff changeset
213 self._expandHeightSpacer()
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 249
diff changeset
214 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
215 for widget in self.children:
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 249
diff changeset
216 widget.width = self.width - 2*self.margins[0] - 2*self.border_size - self._extra_border[0]
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 249
diff changeset
217
249
1cc51d145af9 Further split up the containers.py; bugfix.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
218
1cc51d145af9 Further split up the containers.py; bugfix.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
219 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
220
1cc51d145af9 Further split up the containers.py; bugfix.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
221 class HBoxLayoutMixin(LayoutBase):
1cc51d145af9 Further split up the containers.py; bugfix.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
222 """
1cc51d145af9 Further split up the containers.py; bugfix.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
223 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
224 """
1cc51d145af9 Further split up the containers.py; bugfix.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
225 def __init__(self,**kwargs):
1cc51d145af9 Further split up the containers.py; bugfix.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
226 super(HBoxLayoutMixin,self).__init__(**kwargs)
1cc51d145af9 Further split up the containers.py; bugfix.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
227
1cc51d145af9 Further split up the containers.py; bugfix.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
228 def resizeToContent(self, recurse = True):
255
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 249
diff changeset
229 self._resetSpacers()
51cc05d862f2 Merged editor_rewrite branch to trunk.
cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 249
diff changeset
230
249
1cc51d145af9 Further split up the containers.py; bugfix.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
231 max_h = self.getMaxChildrenHeight()
1cc51d145af9 Further split up the containers.py; bugfix.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
232 x = self.margins[0] + self.border_size
1cc51d145af9 Further split up the containers.py; bugfix.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
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diff changeset
233 y = self.margins[1] + self.border_size
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234 for widget in self.children:
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235 widget.height = max_h
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phoku@33b003aa-7bff-0310-803a-e67f0ece8222
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236 x += widget.width + self.padding
255
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237 if self.children:
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238 x -= self.padding
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239 x += sum([spacer.min_size for spacer in self.spacer])
249
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240
255
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241 self.width = x + self.margins[0] + self._extra_border[0]
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242 self.height = max_h + 2*y + self._extra_border[1]
249
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243
255
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244 self._applyHeight()
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245 self._applyWidth(spacers = self.spacer[:])
249
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246
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phoku@33b003aa-7bff-0310-803a-e67f0ece8222
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247 def expandContent(self):
255
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248 self._expandWidthSpacer()
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249 if not self.vexpand and self.parent:return
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250 for widget in self.children:
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251 widget.height = self.height - 2*self.margins[1] - 2*self.border_size - self._extra_border[1]
249
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252
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253 def xdelta(self,widget):return widget.width + self.padding
255
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254
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
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255 class Spacer(object):
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256 """ A spacer represents expandable or fixed 'whitespace' in the GUI.
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257
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258 In a XML file you can get this by adding a <Spacer /> inside a VBox or
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
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259 HBox element (Windows implicitly are VBox elements).
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260
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
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261 Attributes
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
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262 ----------
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263
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264 As with widgets a number of attributes can be set on a spacer (inside the XML definition).
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265
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266 - min_size: Int: The minimal size this Spacer is allowed to have.
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267 - max_size: Int: The maximal size this Spacer is allowed to have.
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268 - fixed_size: Int: Set min_size and max_size to the same vale - effectively a Fixed size spacer.
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269
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
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270 """
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271
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272 ATTRIBUTES = [
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
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273 IntAttr('min_size'), IntAttr('size'), IntAttr('max_size'),
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274 IntAttr('fixed_size'),
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275 ]
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276
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
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277 def __init__(self,parent=None,**kwargs):
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278 self.parent = parent
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279 self.min_size = 0
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280 self.max_size = 1000
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281 self.size = 0
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282
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283 def __str__(self):
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284 return "Spacer(parent.name='%s')" % getattr(self.__parent,'name','None')
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285
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diff changeset
286 def __repr__(self):
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287 return "<Spacer(parent.name='%s') at %x>" % (getattr(self.__parent,'name','None'),id(self))
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288
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289 def _getSize(self):
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290 self.size = self._size
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291 return self._size
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292 def _setSize(self,size):
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293 self._size = max(self.min_size, min(self.max_size,size))
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diff changeset
294 size = property(_getSize,_setSize)
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295
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
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296 # Alias for size
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297 width = property(_getSize,_setSize)
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298 height = property(_getSize,_setSize)
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299
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diff changeset
300 def _setFixedSize(self,size):
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diff changeset
301 self.min_size = self.max_size = size
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diff changeset
302 self.size = size
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diff changeset
303 fixed_size = property(fset=_setFixedSize)
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diff changeset
304
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305 def _isExpanding(self):
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diff changeset
306 if self.min_size < self.max_size:
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
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diff changeset
307 return 1
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
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diff changeset
308 return 0
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
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diff changeset
309 vexpand = property(_isExpanding)
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cheesesucker@33b003aa-7bff-0310-803a-e67f0ece8222
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diff changeset
310 hexpand = property(_isExpanding)