wxPython/demo/LayoutAnchors.py

   1
   2 from wxPython.wx import *
   3 from wxPython.lib.anchors import LayoutAnchors
   4
   5 #----------------------------------------------------------------------
   6
   7
   8 [wxID_ANCHORSDEMOFRAMEANCHOREDPANEL, wxID_ANCHORSDEMOFRAMEHELPSTATICTEXT,
   9  wxID_ANCHORSDEMOFRAMEMAINPANEL, wxID_ANCHORSDEMOFRAMEBACKGROUNDPANEL,
  10  wxID_ANCHORSDEMOFRAMERIGHTCHECKBOX, wxID_ANCHORSDEMOFRAMEOKBUTTON,
  11  wxID_ANCHORSDEMOFRAMETOPCHECKBOX, wxID_ANCHORSDEMOFRAMEBOTTOMCHECKBOX,
  12  wxID_ANCHORSDEMOFRAME, wxID_ANCHORSDEMOFRAMELEFTCHECKBOX,
  13  ] = map(lambda _init_ctrls: wxNewId(), range(10))
  14
  15 class AnchorsDemoFrame(wxFrame):
  16     def _init_utils(self):
  17         pass
  18
  19     def _init_ctrls(self, prnt):
  20         wxFrame.__init__(self, size = wxSize(328, 187), id = wxID_ANCHORSDEMOFRAME, title = 'LayoutAnchors Demonstration', parent = prnt, name = 'AnchorsDemoFrame', style = wxDEFAULT_FRAME_STYLE | wxCLIP_CHILDREN, pos = wxPoint(261, 123))
  21         self._init_utils()
  22
  23         self.mainPanel = wxPanel(size = wxSize(320, 160), parent = self, id = wxID_ANCHORSDEMOFRAMEMAINPANEL, name = 'panel1', style = wxTAB_TRAVERSAL | wxCLIP_CHILDREN, pos = wxPoint(0, 0))
  24         self.mainPanel.SetAutoLayout(true)
  25
  26         self.okButton = wxButton(label = 'OK', id = wxID_ANCHORSDEMOFRAMEOKBUTTON, parent = self.mainPanel, name = 'okButton', size = wxSize(72, 24), style = 0, pos = wxPoint(240, 128))
  27         self.okButton.SetConstraints(LayoutAnchors(self.okButton, false, false, true, true))
  28         EVT_BUTTON(self.okButton, wxID_ANCHORSDEMOFRAMEOKBUTTON, self.OnOkButtonButton)
  29
  30         self.backgroundPanel = wxPanel(size = wxSize(304, 80), parent = self.mainPanel, id = wxID_ANCHORSDEMOFRAMEBACKGROUNDPANEL, name = 'backgroundPanel', style = wxSIMPLE_BORDER | wxCLIP_CHILDREN, pos = wxPoint(8, 40))
  31         self.backgroundPanel.SetBackgroundColour(wxColour(255, 255, 255))
  32         self.backgroundPanel.SetConstraints(LayoutAnchors(self.backgroundPanel, true, true, true, true))
  33
  34         self.anchoredPanel = wxPanel(size = wxSize(88, 48), id = wxID_ANCHORSDEMOFRAMEANCHOREDPANEL, parent = self.backgroundPanel, name = 'anchoredPanel', style = wxSIMPLE_BORDER, pos = wxPoint(104, 16))
  35         self.anchoredPanel.SetBackgroundColour(wxColour(0, 0, 222))
  36         self.anchoredPanel.SetConstraints(LayoutAnchors(self.anchoredPanel, false, false, false, false))
  37
  38         self.leftCheckBox = wxCheckBox(label = 'Left', id = wxID_ANCHORSDEMOFRAMELEFTCHECKBOX, parent = self.mainPanel, name = 'leftCheckBox', size = wxSize(40, 16), style = 0, pos = wxPoint(8, 8))
  39         self.leftCheckBox.SetConstraints(LayoutAnchors(self.leftCheckBox, false, true, false, false))
  40         EVT_CHECKBOX(self.leftCheckBox, wxID_ANCHORSDEMOFRAMELEFTCHECKBOX, self.OnCheckboxCheckbox)
  41
  42         self.topCheckBox = wxCheckBox(label = 'Top', id = wxID_ANCHORSDEMOFRAMETOPCHECKBOX, parent = self.mainPanel, name = 'topCheckBox', size = wxSize(40, 16), style = 0, pos = wxPoint(88, 8))
  43         self.topCheckBox.SetConstraints(LayoutAnchors(self.topCheckBox, false, true, false, false))
  44         EVT_CHECKBOX(self.topCheckBox, wxID_ANCHORSDEMOFRAMETOPCHECKBOX, self.OnCheckboxCheckbox)
  45
  46         self.rightCheckBox = wxCheckBox(label = 'Right', id = wxID_ANCHORSDEMOFRAMERIGHTCHECKBOX, parent = self.mainPanel, name = 'rightCheckBox', size = wxSize(48, 16), style = 0, pos = wxPoint(168, 8))
  47         self.rightCheckBox.SetConstraints(LayoutAnchors(self.rightCheckBox, false, true, false, false))
  48         EVT_CHECKBOX(self.rightCheckBox, wxID_ANCHORSDEMOFRAMERIGHTCHECKBOX, self.OnCheckboxCheckbox)
  49
  50         self.bottomCheckBox = wxCheckBox(label = 'Bottom', id = wxID_ANCHORSDEMOFRAMEBOTTOMCHECKBOX, parent = self.mainPanel, name = 'bottomCheckBox', size = wxSize(56, 16), style = 0, pos = wxPoint(248, 8))
  51         self.bottomCheckBox.SetConstraints(LayoutAnchors(self.bottomCheckBox, false, true, false, false))
  52         EVT_CHECKBOX(self.bottomCheckBox, wxID_ANCHORSDEMOFRAMEBOTTOMCHECKBOX, self.OnCheckboxCheckbox)
  53
  54         self.helpStaticText = wxStaticText(label = 'Select anchor options above, then resize window to see the effect', id = wxID_ANCHORSDEMOFRAMEHELPSTATICTEXT, parent = self.mainPanel, name = 'helpStaticText', size = wxSize(224, 24), style = wxST_NO_AUTORESIZE, pos = wxPoint(8, 128))
  55         self.helpStaticText.SetConstraints(LayoutAnchors(self.helpStaticText, true, false, true, true))
  56
  57     def __init__(self, parent):
  58         self._init_ctrls(parent)
  59
  60     def OnCheckboxCheckbox(self, event):
  61         self.anchoredPanel.SetConstraints(
  62             LayoutAnchors(self.anchoredPanel,
  63                           self.leftCheckBox.GetValue(), self.topCheckBox.GetValue(),
  64                           self.rightCheckBox.GetValue(), self.bottomCheckBox.GetValue()) )
  65
  66     def OnOkButtonButton(self, event):
  67         self.Close()
  68
  69 #----------------------------------------------------------------------
  70
  71 def runTest(frame, nb, log):
  72     win = AnchorsDemoFrame(frame)
  73     frame.otherWin = win
  74     win.Show(true)
  75
  76
  77
  78
  79 #----------------------------------------------------------------------
  80
  81
  82
  83
  84 overview = """<html><body>
  85 <h2>LayoutAnchors</h2>
  86         A class that implements Delphi's Anchors with wxLayoutConstraints.
  87 <p>
  88         Anchored sides maintain the distance from the edge of the
  89         control to the same edge of the parent.
  90         When neither side is selected, the control keeps the same
  91         relative position to both sides.
  92 <p>
  93         The current position and size of the control and it's parent
  94         is used when setting up the constraints. To change the size or
  95         position of an already anchored control, set the constraints to
  96         None, reposition or resize and reapply the anchors.
  97 <p>
  98         Examples:
  99 <p>
 100         Let's anchor the right and bottom edge of a control and
 101         resize it's parent.
 102 <p>
 103 <pre>
 104         ctrl.SetConstraints(LayoutAnchors(ctrl, left=0, top=0, right=1, bottom=1))
 105
 106         +=========+         +===================+
 107         | +-----+ |         |                   |
 108         | |     * |   ->    |                   |
 109         | +--*--+ |         |           +-----+ |
 110         +---------+         |           |     * |
 111                             |           +--*--+ |
 112                             +-------------------+
 113         * = anchored edge
 114 </pre>
 115 <p>
 116         When anchored on both sides the control will stretch horizontally.
 117 <p>
 118 <pre>
 119         ctrl.SetConstraints(LayoutAnchors(ctrl, 1, 0, 1, 1))
 120
 121         +=========+         +===================+
 122         | +-----+ |         |                   |
 123         | *     * |   ->    |                   |
 124         | +--*--+ |         | +---------------+ |
 125         +---------+         | *     ctrl      * |
 126                             | +-------*-------+ |
 127                             +-------------------+
 128         * = anchored edge
 129 </pre>
 130 </html></body>
 131 """
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