Coverage for src/robotide/editor/flowsizer.py: 86%
52 statements
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1#-------------------------------------------------------------------------------
2# Class: FlowSizer
3# Defines a horizontal or vertical flow layout sizer for wxPython
4# Written by: David C. Morrill
5# Date: 01/12/2006
6# (c) Copyright 2006 by Enthought, Inc.
7# License: BSD Style.
8#-------------------------------------------------------------------------------
10# This code has been modified after inclusion and is no longer generic.
11# You should probably not use this in your own projects.
12#
13# Copyright 2008-2015 Nokia Networks
14# Copyright 2016- Robot Framework Foundation
15#
16# Licensed under the Apache License, Version 2.0 (the "License");
17# you may not use this file except in compliance with the License.
18# You may obtain a copy of the License at
19#
20# http://www.apache.org/licenses/LICENSE-2.0
21#
22# Unless required by applicable law or agreed to in writing, software
23# distributed under the License is distributed on an "AS IS" BASIS,
24# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
25# See the License for the specific language governing permissions and
26# limitations under the License.
28import wx
29from wx import Sizer
32class HorizontalFlowSizer(Sizer):
33 """
34 A sizer which lays out component left to right top to bottom. Java uses
35 these quite heavily
36 """
37 _DEFAUL_WIDTH = 200
39 def __init__(self):
40 """
41 Initializes the object:
42 """
43 Sizer.__init__(self) 1ca
44 self._frozen = False 1ca
45 self._needed_size = None 1ca
46 self._height = 0 1ca
48 def CalcMin(self):
49 """
50 Calculates the minimum size needed by the sizer.
51 """
52 return wx.Size(0, 0) 1ca
54 def RecalcSizes(self):
55 """
56 Layout the contents of the sizer based on the sizer's current size
57 and position.
58 """
59 x0, y0 = self.GetPosition() 1a
60 dx, dy = self.GetSize() 1a
61 dy = self._height or dy 1a
62 if self._is_error_width(dx): 1a
63 dx = HorizontalFlowSizer._DEFAUL_WIDTH 1a
64 else:
65 HorizontalFlowSizer._DEFAUL_WIDTH = dx 1a
66 x_border = x0 + dx 1a
67 x, y = x0, y0 1a
68 mdy = sdy = 0 1a
69 cur_max = 0 1a
70 for item in self.GetChildren(): 1a
71 idx, idy = item.CalcMin() 1a
72 expand = item.GetFlag() & wx.EXPAND 1a
73 if (x > x0) and ((x + idx) > x_border): 1a
74 x = x0 1a
75 y += (mdy + sdy) 1a
76 mdy = sdy = 0 1a
77 cur_max = max(idy, cur_max) 1a
78 if expand: 78 ↛ 79line 78 didn't jump to line 79 because the condition on line 78 was never true1a
79 idy = cur_max
80 if item.IsSpacer(): 80 ↛ 81line 80 didn't jump to line 81 because the condition on line 80 was never true1a
81 sdy = max(sdy, idy)
82 if x == x0:
83 idx = 0
84 item.SetDimension(wx.Point(x, y), wx.Size(idx, idy)) 1a
85 item.Show(True) 1a
86 x += idx 1a
87 mdy = max(mdy, idy) 1a
88 newheight = y + mdy + sdy - y0 1a
89 if newheight != self._height: 1a
90 self._height = newheight 1a
91 # Enforce that the parent window recalculates needed height
92 self._send_resize_event() 1a
94 def _send_resize_event(self):
95 frame = self.GetContainingWindow().GetTopLevelParent() 1a
96 frame.ProcessEvent(wx.SizeEvent(frame.Size, frame.Id)) 1a
98 def _is_error_width(self, dx):
99 # It seems that there are several widths that notify that the width
100 # calculation was unsuccessful. The erroneous widths are:
101 # 94 in windows xp
102 # 100 in windows 7
103 # 0 everywhere
104 return dx in [0, 94, 100] 1a
106 @property
107 def height(self):
108 return self._height