Mercurial > fife-parpg

annotate engine/extensions/pychan/widgets/containers.py @ 249:1cc51d145af9

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Further split up the containers.py; bugfix.
author phoku@33b003aa-7bff-0310-803a-e67f0ece8222
date Thu, 26 Mar 2009 16:36:21 +0000
parents a2d5e2721489
children 51cc05d862f2
rev   line source
248
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phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
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1 # -*- coding: utf-8 -*-
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2
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phoku@33b003aa-7bff-0310-803a-e67f0ece8222
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3 from common import *
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phoku@33b003aa-7bff-0310-803a-e67f0ece8222
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4 from widget import Widget
249
1cc51d145af9 Further split up the containers.py; bugfix.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 248
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5 from layout import VBoxLayoutMixin, HBoxLayoutMixin
248
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6
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phoku@33b003aa-7bff-0310-803a-e67f0ece8222
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7 class Container(Widget):
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phoku@33b003aa-7bff-0310-803a-e67f0ece8222
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8 """
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phoku@33b003aa-7bff-0310-803a-e67f0ece8222
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9 This is the basic container class. It provides space in which child widgets can
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phoku@33b003aa-7bff-0310-803a-e67f0ece8222
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10 be position via the position attribute. If you want to use the layout engine,
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phoku@33b003aa-7bff-0310-803a-e67f0ece8222
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11 you have to use derived containers with vertical or horizontal orientation
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phoku@33b003aa-7bff-0310-803a-e67f0ece8222
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12 (L{VBox} or L{HBox})
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phoku@33b003aa-7bff-0310-803a-e67f0ece8222
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13
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phoku@33b003aa-7bff-0310-803a-e67f0ece8222
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14 New Attributes
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phoku@33b003aa-7bff-0310-803a-e67f0ece8222
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15 ==============
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16
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phoku@33b003aa-7bff-0310-803a-e67f0ece8222
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17 - padding - Integer: Not used in the Container class istelf, distance between child widgets.
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phoku@33b003aa-7bff-0310-803a-e67f0ece8222
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18 - background_image - Set this to a GuiImage or a resource location (simply a filename).
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phoku@33b003aa-7bff-0310-803a-e67f0ece8222
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19 The image will be tiled over the background area.
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phoku@33b003aa-7bff-0310-803a-e67f0ece8222
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20 - opaque - Boolean: Whether the background should be drawn at all. Set this to False
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phoku@33b003aa-7bff-0310-803a-e67f0ece8222
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21 to make the widget transparent.
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phoku@33b003aa-7bff-0310-803a-e67f0ece8222
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22 - children - Just contains the list of contained child widgets. Do NOT modify.
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phoku@33b003aa-7bff-0310-803a-e67f0ece8222
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23 """
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phoku@33b003aa-7bff-0310-803a-e67f0ece8222
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24
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phoku@33b003aa-7bff-0310-803a-e67f0ece8222
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25 ATTRIBUTES = Widget.ATTRIBUTES + [ IntAttr('padding'), Attr('background_image'), BoolAttr('opaque'),PointAttr('margins') ]
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26
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phoku@33b003aa-7bff-0310-803a-e67f0ece8222
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27 def __init__(self,padding=5,margins=(5,5),_real_widget=None, **kwargs):
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phoku@33b003aa-7bff-0310-803a-e67f0ece8222
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28 self.real_widget = _real_widget or fife.Container()
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phoku@33b003aa-7bff-0310-803a-e67f0ece8222
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29 self.children = []
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phoku@33b003aa-7bff-0310-803a-e67f0ece8222
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30 self.margins = margins
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phoku@33b003aa-7bff-0310-803a-e67f0ece8222
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31 self.padding = padding
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phoku@33b003aa-7bff-0310-803a-e67f0ece8222
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32 self._background = []
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phoku@33b003aa-7bff-0310-803a-e67f0ece8222
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33 self._background_image = None
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phoku@33b003aa-7bff-0310-803a-e67f0ece8222
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34 super(Container,self).__init__(**kwargs)
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35
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phoku@33b003aa-7bff-0310-803a-e67f0ece8222
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36 def addChild(self, widget):
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phoku@33b003aa-7bff-0310-803a-e67f0ece8222
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37 widget.parent = self
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phoku@33b003aa-7bff-0310-803a-e67f0ece8222
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38 self.children.append(widget)
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phoku@33b003aa-7bff-0310-803a-e67f0ece8222
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39 self.real_widget.add(widget.real_widget)
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40
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phoku@33b003aa-7bff-0310-803a-e67f0ece8222
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41 def removeChild(self,widget):
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phoku@33b003aa-7bff-0310-803a-e67f0ece8222
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42 if not widget in self.children:
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phoku@33b003aa-7bff-0310-803a-e67f0ece8222
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43 raise RuntimeError("%s does not have %s as direct child widget." % (str(self),str(widget)))
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phoku@33b003aa-7bff-0310-803a-e67f0ece8222
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44 self.children.remove(widget)
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phoku@33b003aa-7bff-0310-803a-e67f0ece8222
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45 self.real_widget.remove(widget.real_widget)
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phoku@33b003aa-7bff-0310-803a-e67f0ece8222
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46 widget.parent = None
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phoku@33b003aa-7bff-0310-803a-e67f0ece8222
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47
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phoku@33b003aa-7bff-0310-803a-e67f0ece8222
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48 def add(self,*widgets):
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phoku@33b003aa-7bff-0310-803a-e67f0ece8222
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49 print "PyChan: Deprecation warning: Please use 'addChild' or 'addChildren' instead."
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phoku@33b003aa-7bff-0310-803a-e67f0ece8222
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50 self.addChildren(*widgets)
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51
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phoku@33b003aa-7bff-0310-803a-e67f0ece8222
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52 def getMaxChildrenWidth(self):
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phoku@33b003aa-7bff-0310-803a-e67f0ece8222
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53 if not self.children: return 0
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phoku@33b003aa-7bff-0310-803a-e67f0ece8222
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54 return max(widget.width for widget in self.children)
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55
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phoku@33b003aa-7bff-0310-803a-e67f0ece8222
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56 def getMaxChildrenHeight(self):
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phoku@33b003aa-7bff-0310-803a-e67f0ece8222
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57 if not self.children: return 0
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phoku@33b003aa-7bff-0310-803a-e67f0ece8222
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58 return max(widget.height for widget in self.children)
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59
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phoku@33b003aa-7bff-0310-803a-e67f0ece8222
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60 def deepApply(self,visitorFunc):
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phoku@33b003aa-7bff-0310-803a-e67f0ece8222
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61 for child in self.children:
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phoku@33b003aa-7bff-0310-803a-e67f0ece8222
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62 child.deepApply(visitorFunc)
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phoku@33b003aa-7bff-0310-803a-e67f0ece8222
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63 visitorFunc(self)
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64
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phoku@33b003aa-7bff-0310-803a-e67f0ece8222
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65 def beforeShow(self):
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phoku@33b003aa-7bff-0310-803a-e67f0ece8222
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66 self._resetTiling()
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67
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phoku@33b003aa-7bff-0310-803a-e67f0ece8222
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68 def _resetTiling(self):
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phoku@33b003aa-7bff-0310-803a-e67f0ece8222
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69 image = self._background_image
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phoku@33b003aa-7bff-0310-803a-e67f0ece8222
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70 if image is None:
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phoku@33b003aa-7bff-0310-803a-e67f0ece8222
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71 return
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72
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phoku@33b003aa-7bff-0310-803a-e67f0ece8222
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73 back_w,back_h = self.width, self.height
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phoku@33b003aa-7bff-0310-803a-e67f0ece8222
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74 image_w, image_h = image.getWidth(), image.getHeight()
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75
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phoku@33b003aa-7bff-0310-803a-e67f0ece8222
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76 map(self.real_widget.remove,self._background)
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77
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phoku@33b003aa-7bff-0310-803a-e67f0ece8222
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78 # Now tile the background over the widget
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phoku@33b003aa-7bff-0310-803a-e67f0ece8222
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79 self._background = []
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phoku@33b003aa-7bff-0310-803a-e67f0ece8222
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80 icon = fife.Icon(image)
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phoku@33b003aa-7bff-0310-803a-e67f0ece8222
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81 x, w = 0, image_w
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phoku@33b003aa-7bff-0310-803a-e67f0ece8222
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82 while x < back_w:
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83 y, h = 0, image_h
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phoku@33b003aa-7bff-0310-803a-e67f0ece8222
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84 while y < self.height:
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phoku@33b003aa-7bff-0310-803a-e67f0ece8222
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85 icon = fife.Icon(image)
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phoku@33b003aa-7bff-0310-803a-e67f0ece8222
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86 icon.setPosition(x,y)
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phoku@33b003aa-7bff-0310-803a-e67f0ece8222
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87 self._background.append(icon)
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phoku@33b003aa-7bff-0310-803a-e67f0ece8222
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88 y += h
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phoku@33b003aa-7bff-0310-803a-e67f0ece8222
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89 x += w
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90 map(self.real_widget.add,self._background)
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phoku@33b003aa-7bff-0310-803a-e67f0ece8222
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91 for tile in self._background:
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phoku@33b003aa-7bff-0310-803a-e67f0ece8222
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92 tile.requestMoveToBottom()
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93
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phoku@33b003aa-7bff-0310-803a-e67f0ece8222
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94 def setBackgroundImage(self,image):
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phoku@33b003aa-7bff-0310-803a-e67f0ece8222
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95 self._background = getattr(self,'_background',None)
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phoku@33b003aa-7bff-0310-803a-e67f0ece8222
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96 if image is None:
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phoku@33b003aa-7bff-0310-803a-e67f0ece8222
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97 self._background_image = image
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phoku@33b003aa-7bff-0310-803a-e67f0ece8222
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98 map(self.real_widget.remove,self._background)
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phoku@33b003aa-7bff-0310-803a-e67f0ece8222
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99 self._background = []
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100
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phoku@33b003aa-7bff-0310-803a-e67f0ece8222
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101 # Background generation is done in _resetTiling
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102
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103 if not isinstance(image, fife.GuiImage):
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104 image = get_manager().loadImage(image)
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phoku@33b003aa-7bff-0310-803a-e67f0ece8222
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105 self._background_image = image
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106
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phoku@33b003aa-7bff-0310-803a-e67f0ece8222
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107 def getBackgroundImage(self): return self._background_image
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phoku@33b003aa-7bff-0310-803a-e67f0ece8222
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108 background_image = property(getBackgroundImage,setBackgroundImage)
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phoku@33b003aa-7bff-0310-803a-e67f0ece8222
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109
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phoku@33b003aa-7bff-0310-803a-e67f0ece8222
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110 def _setOpaque(self,opaque): self.real_widget.setOpaque(opaque)
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phoku@33b003aa-7bff-0310-803a-e67f0ece8222
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111 def _getOpaque(self): return self.real_widget.isOpaque()
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phoku@33b003aa-7bff-0310-803a-e67f0ece8222
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112 opaque = property(_getOpaque,_setOpaque)
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phoku@33b003aa-7bff-0310-803a-e67f0ece8222
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113
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phoku@33b003aa-7bff-0310-803a-e67f0ece8222
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114 class VBox(VBoxLayoutMixin,Container):
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phoku@33b003aa-7bff-0310-803a-e67f0ece8222
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115 """
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phoku@33b003aa-7bff-0310-803a-e67f0ece8222
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116 A vertically aligned box - for containement of child widgets.
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117
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phoku@33b003aa-7bff-0310-803a-e67f0ece8222
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118 Widgets added to this container widget, will layout on top of each other.
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phoku@33b003aa-7bff-0310-803a-e67f0ece8222
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119 Also the minimal width of the container will be the maximum of the minimal
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phoku@33b003aa-7bff-0310-803a-e67f0ece8222
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120 widths of the contained widgets.
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phoku@33b003aa-7bff-0310-803a-e67f0ece8222
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121
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phoku@33b003aa-7bff-0310-803a-e67f0ece8222
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122 The default alignment is to the top. This can be changed by adding a Spacer
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phoku@33b003aa-7bff-0310-803a-e67f0ece8222
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123 to the widget at any point (but only one!). The spacer will expand, so that
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phoku@33b003aa-7bff-0310-803a-e67f0ece8222
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124 widgets above the spacer are aligned to the top, while widgets below the spacer
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125 are aligned to the bottom.
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126 """
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127 def __init__(self,padding=5,**kwargs):
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128 super(VBox,self).__init__(**kwargs)
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129 self.padding = padding
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130
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131
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phoku@33b003aa-7bff-0310-803a-e67f0ece8222
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132 class HBox(HBoxLayoutMixin,Container):
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133 """
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phoku@33b003aa-7bff-0310-803a-e67f0ece8222
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134 A horizontally aligned box - for containement of child widgets.
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phoku@33b003aa-7bff-0310-803a-e67f0ece8222
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135
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phoku@33b003aa-7bff-0310-803a-e67f0ece8222
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136 Please see L{VBox} for details - just change the directions :-).
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137 """
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138 def __init__(self,padding=5,**kwargs):
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139 super(HBox,self).__init__(**kwargs)
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140 self.padding = padding
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141
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phoku@33b003aa-7bff-0310-803a-e67f0ece8222
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142 class Window(VBoxLayoutMixin,Container):
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143 """
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phoku@33b003aa-7bff-0310-803a-e67f0ece8222
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144 A L{VBox} with a draggable title bar aka a window
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145
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phoku@33b003aa-7bff-0310-803a-e67f0ece8222
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146 New Attributes
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phoku@33b003aa-7bff-0310-803a-e67f0ece8222
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147 ==============
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148
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phoku@33b003aa-7bff-0310-803a-e67f0ece8222
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149 - title: The Caption of the window
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150 - titlebar_height: The height of the window title bar
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151 """
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152
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phoku@33b003aa-7bff-0310-803a-e67f0ece8222
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153 ATTRIBUTES = Container.ATTRIBUTES + [ UnicodeAttr('title'), IntAttr('titlebar_height') ]
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154
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155 def __init__(self,title=u"title",titlebar_height=0,**kwargs):
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156 super(Window,self).__init__(_real_widget = fife.Window(), **kwargs)
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157 if titlebar_height == 0:
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phoku@33b003aa-7bff-0310-803a-e67f0ece8222
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158 titlebar_height = self.real_font.getHeight() + 4
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159 self.titlebar_height = titlebar_height
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160 self.title = title
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161
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phoku@33b003aa-7bff-0310-803a-e67f0ece8222
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162 # Override explicit positioning
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phoku@33b003aa-7bff-0310-803a-e67f0ece8222
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163 self.position_technique = "automatic"
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164
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165
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phoku@33b003aa-7bff-0310-803a-e67f0ece8222
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166 def _getTitle(self): return gui2text(self.real_widget.getCaption())
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167 def _setTitle(self,text): self.real_widget.setCaption(text2gui(text))
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168 title = property(_getTitle,_setTitle)
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169
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phoku@33b003aa-7bff-0310-803a-e67f0ece8222
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170 def _getTitleBarHeight(self): return self.real_widget.getTitleBarHeight()
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171 def _setTitleBarHeight(self,h): self.real_widget.setTitleBarHeight(h)
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172 titlebar_height = property(_getTitleBarHeight,_setTitleBarHeight)
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173
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phoku@33b003aa-7bff-0310-803a-e67f0ece8222
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174 # Hackish way of hiding that title bar height in the perceived height.
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175 # Fixes VBox calculation
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176 def _setHeight(self,h):
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177 h = max(self.min_size[1],h)
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178 h = min(self.max_size[1],h)
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179 self.real_widget.setHeight(h + self.titlebar_height)
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180 def _getHeight(self): return self.real_widget.getHeight() - self.titlebar_height
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181 height = property(_getHeight,_setHeight)
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182
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183
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phoku@33b003aa-7bff-0310-803a-e67f0ece8222
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184 # Spacer
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185
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phoku@33b003aa-7bff-0310-803a-e67f0ece8222
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186 class Spacer(object):
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phoku@33b003aa-7bff-0310-803a-e67f0ece8222
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187 """ A spacer represents expandable 'whitespace' in the GUI.
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188
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phoku@33b003aa-7bff-0310-803a-e67f0ece8222
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189 In a XML file you can get this by adding a <Spacer /> inside a VBox or
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190 HBox element (Windows implicitly are VBox elements).
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191
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phoku@33b003aa-7bff-0310-803a-e67f0ece8222
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192 The effect is, that elements before the spacer will be left (top)
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193 and elements after the spacer will be right (bottom) aligned.
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194
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195 There can only be one spacer in VBox (HBox).
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196 """
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197 def __init__(self,parent=None,**kwargs):
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phoku@33b003aa-7bff-0310-803a-e67f0ece8222
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198 self._parent = parent
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199
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phoku@33b003aa-7bff-0310-803a-e67f0ece8222
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200 def __str__(self):
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phoku@33b003aa-7bff-0310-803a-e67f0ece8222
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201 return "Spacer(parent.name='%s')" % getattr(self._parent,'name','None')
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202
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phoku@33b003aa-7bff-0310-803a-e67f0ece8222
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203 def __repr__(self):
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phoku@33b003aa-7bff-0310-803a-e67f0ece8222
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204 return "<Spacer(parent.name='%s') at %x>" % (getattr(self._parent,'name','None'),id(self))