Source Code for Module library.pyjamas.ui.AbsolutePanel

 1  # Copyright 2006 James Tauber and contributors 
 2  # Copyright (C) 2009 Luke Kenneth Casson Leighton <lkcl@lkcl.net> 
 3  # 
 4  # Licensed under the Apache License, Version 2.0 (the "License"); 
 5  # you may not use this file except in compliance with the License. 
 6  # You may obtain a copy of the License at 
 7  # 
 8  #     http://www.apache.org/licenses/LICENSE-2.0 
 9  # 
10  # Unless required by applicable law or agreed to in writing, software 
11  # distributed under the License is distributed on an "AS IS" BASIS, 
12  # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 
13  # See the License for the specific language governing permissions and 
14  # limitations under the License. 
15  from pyjamas import Factory 
16  from pyjamas import DOM 
17   
18  from pyjamas.ui.ComplexPanel import ComplexPanel 
19   
20 -class AbsolutePanel(ComplexPanel): 
21   
22 -    def __init__(self, **ka): 
23          element = ka.pop('Element', None) or DOM.createDiv() 
24          self.setElement(element) 
25          DOM.setStyleAttribute(element, "position", "relative") 
26          DOM.setStyleAttribute(element, "overflow", "hidden") 
27          ComplexPanel.__init__(self, **ka) 
28   
29 -    def add(self, widget, left=None, top=None): 
30          ComplexPanel.add(self, widget, self.getElement()) 
31   
32          if left is not None: 
33              self.setWidgetPosition(widget, left, top) 
34   
35 -    def setWidgetPosition(self, widget, left, top): 
36          self.checkWidgetParent(widget) 
37   
38          h = widget.getElement() 
39          if (left == -1) and (top == -1): 
40              DOM.setStyleAttribute(h, "left", "") 
41              DOM.setStyleAttribute(h, "top", "") 
42              DOM.setStyleAttribute(h, "position", "static") 
43          else: 
44              DOM.setStyleAttribute(h, "position", "absolute") 
45              DOM.setStyleAttribute(h, "left", "%dpx" % left) 
46              DOM.setStyleAttribute(h, "top", "%dpx" % top) 
47   
48 -    def getWidgetLeft(self, widget): 
49          self.checkWidgetParent(widget) 
50          return DOM.getIntAttribute(widget.getElement(), "offsetLeft") 
51   
52 -    def getWidgetTop(self, widget): 
53          self.checkWidgetParent(widget) 
54          return DOM.getIntAttribute(widget.getElement(), "offsetTop") 
55   
56 -    def checkWidgetParent(self, widget): 
57          if widget.getParent() != self: 
58              raise Exception("Widget must be a child of this panel.") 
59   
60  Factory.registerClass('pyjamas.ui.AbsolutePanel', 'AbsolutePanel', AbsolutePanel) 
61