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# Copyright (c) 2001, 2003 by Intevation GmbH |
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# Authors: |
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# Jonathan Coles <[email protected]> |
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# |
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# This program is free software under the GPL (>=v2) |
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# Read the file COPYING coming with Thuban for details. |
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|
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"""Dialog for classifying how layers are displayed""" |
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|
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__version__ = "$Revision$" |
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|
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import copy |
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|
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from Thuban.Model.table import FIELDTYPE_INT, FIELDTYPE_DOUBLE, \ |
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FIELDTYPE_STRING |
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|
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from wxPython.wx import * |
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from wxPython.grid import * |
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|
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from Thuban import _ |
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from Thuban.common import * |
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from Thuban.UI.common import * |
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|
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from Thuban.Model.classification import * |
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|
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from Thuban.Model.color import Color |
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|
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from Thuban.Model.layer import Layer, SHAPETYPE_ARC, SHAPETYPE_POLYGON, SHAPETYPE_POINT |
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|
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from dialogs import NonModalDialog |
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|
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# widget id's |
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ID_PROPERTY_SELECT = 4010 |
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ID_CLASS_TABLE = 40011 |
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|
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ID_CLASSIFY_OK = 4001 |
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ID_CLASSIFY_CANCEL = 4002 |
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ID_CLASSIFY_ADD = 4003 |
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ID_CLASSIFY_GENRANGE = 4004 |
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ID_CLASSIFY_REMOVE = 4005 |
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ID_CLASSIFY_MOVEUP = 4006 |
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ID_CLASSIFY_MOVEDOWN = 4007 |
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ID_CLASSIFY_APPLY = 4008 |
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|
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# table columns |
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COL_SYMBOL = 0 |
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COL_VALUE = 1 |
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COL_LABEL = 2 |
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|
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# indices into the client data lists in Classifier.fields |
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FIELD_CLASS = 0 |
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FIELD_TYPE = 1 |
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FIELD_NAME = 2 |
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|
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# |
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# this is a silly work around to ensure that the table that is |
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# passed into SetTable is the same that is returned by GetTable |
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# |
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import weakref |
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class ClassGrid(wxGrid): |
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|
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def __init__(self, parent): |
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"""Constructor. |
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|
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parent -- the parent window |
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|
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clazz -- the working classification that this grid should |
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use for display. |
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""" |
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|
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#wxGrid.__init__(self, parent, ID_CLASS_TABLE, size = (340, 160)) |
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wxGrid.__init__(self, parent, ID_CLASS_TABLE) |
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#self.SetTable(ClassTable(fieldData, layer.ShapeType(), self), True) |
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|
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EVT_GRID_CELL_LEFT_DCLICK(self, self._OnCellDClick) |
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EVT_GRID_RANGE_SELECT(self, self._OnSelectedRange) |
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EVT_GRID_SELECT_CELL(self, self._OnSelectedCell) |
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|
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self.currentSelection = [] |
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|
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def CreateTable(self, clazz, shapeType): |
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|
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assert(isinstance(clazz, Classification)) |
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|
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self.shapeType = shapeType |
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table = self.GetTable() |
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if table is None: |
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w = self.GetDefaultColSize() * 3 + self.GetDefaultRowLabelSize() |
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h = self.GetDefaultRowSize() * 4 + self.GetDefaultColLabelSize() |
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self.SetDimensions(-1, -1, w, h) |
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self.SetSizeHints(w, h, -1, -1) |
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self.SetTable(ClassTable(clazz, self.shapeType, self), True) |
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else: |
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table.Reset(clazz, self.shapeType) |
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|
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self.SetSelectionMode(wxGrid.wxGridSelectRows) |
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self.ClearSelection() |
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|
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def GetCurrentSelection(self): |
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"""Return the currently highlighted rows as an increasing list |
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of row numbers.""" |
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sel = copy.copy(self.currentSelection) |
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sel.sort() |
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return sel |
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|
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def SetCellRenderer(self, row, col): |
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raise ValueError(_("Must not allow setting of renderer in ClassGrid!")) |
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|
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# |
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# [Set|Get]Table is taken from http://wiki.wxpython.org |
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# they are needed as a work around to ensure that the table |
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# that is passed to SetTable is the one that is returned |
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# by GetTable. |
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# |
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def SetTable(self, object, *attributes): |
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self.tableRef = weakref.ref(object) |
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return wxGrid.SetTable(self, object, *attributes) |
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|
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def GetTable(self): |
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try: |
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return self.tableRef() |
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except: |
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return None |
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|
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def DeleteSelectedRows(self): |
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"""Deletes all highlighted rows. |
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|
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If only one row is highlighted then after it is deleted the |
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row that was below the deleted row is highlighted.""" |
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|
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sel = self.GetCurrentSelection() |
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|
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# nothing to do |
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if len(sel) == 0: return |
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|
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# if only one thing is selected check if it is the default |
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# data row, because we can't remove that |
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if len(sel) == 1: |
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#group = self.GetTable().GetValueAsCustom(sel[0], COL_SYMBOL, None) |
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group = self.GetTable().GetClassGroup(sel[0]) |
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if isinstance(group, ClassGroupDefault): |
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wxMessageDialog(self, |
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"The Default group cannot be removed.", |
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style = wxOK | wxICON_EXCLAMATION).ShowModal() |
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return |
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|
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|
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self.ClearSelection() |
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|
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# we need to remove things from the bottom up so we don't |
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# change the indexes of rows that will be deleted next |
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sel.reverse() |
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|
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# |
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# actually remove the rows |
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# |
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table = self.GetTable() |
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for row in sel: |
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table.DeleteRows(row) |
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|
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# |
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# if there was only one row selected highlight the row |
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# that was directly below it, or move up one if the |
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# deleted row was the last row. |
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# |
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if len(sel) == 1: |
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r = sel[0] |
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if r > self.GetNumberRows() - 1: |
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r = self.GetNumberRows() - 1 |
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self.SelectRow(r) |
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|
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# |
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# XXX: This isn't working, and there is no way to deselect rows wxPython! |
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# |
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# def DeselectRow(self, row): |
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# self.ProcessEvent( |
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# wxGridRangeSelectEvent(-1, |
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# wxEVT_GRID_RANGE_SELECT, |
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# self, |
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# (row, row), (row, row), |
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# sel = False)) |
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|
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def _OnCellDClick(self, event): |
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"""Handle a double on a cell.""" |
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|
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r = event.GetRow() |
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c = event.GetCol() |
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if c == COL_SYMBOL: |
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prop = self.GetTable().GetValueAsCustom(r, c, None) |
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#prop = group.GetProperties() |
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|
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# get a new ClassGroupProperties object and copy the |
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# values over to our current object |
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propDlg = SelectPropertiesDialog(NULL, prop, self.shapeType) |
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if propDlg.ShowModal() == wxID_OK: |
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new_prop = propDlg.GetClassGroupProperties() |
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#prop.SetProperties(new_prop) |
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self.GetTable().SetValueAsCustom(r, c, None, new_prop) |
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propDlg.Destroy() |
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|
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# |
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# _OnSelectedRange() and _OnSelectedCell() were borrowed |
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# from http://wiki.wxpython.org to keep track of which |
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# cells are currently highlighted |
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# |
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def _OnSelectedRange(self, event): |
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"""Internal update to the selection tracking list""" |
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if event.Selecting(): |
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for index in range( event.GetTopRow(), event.GetBottomRow()+1): |
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if index not in self.currentSelection: |
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self.currentSelection.append( index ) |
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else: |
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for index in range( event.GetTopRow(), event.GetBottomRow()+1): |
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while index in self.currentSelection: |
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self.currentSelection.remove( index ) |
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#self.ConfigureForSelection() |
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|
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event.Skip() |
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|
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def _OnSelectedCell( self, event ): |
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"""Internal update to the selection tracking list""" |
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self.currentSelection = [ event.GetRow() ] |
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#self.ConfigureForSelection() |
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event.Skip() |
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|
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class ClassTable(wxPyGridTableBase): |
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"""Represents the underlying data structure for the grid.""" |
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|
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NUM_COLS = 3 |
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|
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__col_labels = [_("Symbol"), _("Value"), _("Label")] |
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|
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def __init__(self, clazz, shapeType, view = None): |
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"""Constructor. |
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|
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shapeType -- the type of shape that the layer uses |
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|
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view -- a wxGrid object that uses this class for its table |
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""" |
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|
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wxPyGridTableBase.__init__(self) |
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|
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self.SetView(view) |
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self.tdata = [] |
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|
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self.Reset(clazz, shapeType) |
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|
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def Reset(self, clazz, shapeType): |
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"""Reset the table with the given data. |
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|
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This is necessary because wxWindows does not allow a grid's |
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table to change once it has been intially set and so we |
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need a way of modifying the data. |
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|
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clazz -- the working classification that this table should |
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use for display. This may be different from the |
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classification in the layer. |
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|
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shapeType -- the type of shape that the layer uses |
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""" |
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|
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assert(isinstance(clazz, Classification)) |
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|
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self.GetView().BeginBatch() |
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|
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self.fieldType = clazz.GetFieldType() |
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self.shapeType = shapeType |
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|
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old_len = len(self.tdata) |
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|
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self.tdata = [] |
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|
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# |
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# copy the data out of the classification and into our |
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# array |
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# |
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for p in clazz: |
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np = copy.deepcopy(p) |
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self.__SetRow(-1, np) |
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|
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|
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self.__Modified(-1) |
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|
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self.__NotifyRowChanges(old_len, len(self.tdata)) |
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|
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|
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self.GetView().EndBatch() |
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|
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def __NotifyRowChanges(self, curRows, newRows): |
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# |
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# silly message processing for updates to the number of |
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# rows and columns |
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# |
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if newRows > curRows: |
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msg = wxGridTableMessage(self, |
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wxGRIDTABLE_NOTIFY_ROWS_APPENDED, |
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newRows - curRows) # how many |
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self.GetView().ProcessTableMessage(msg) |
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elif newRows < curRows: |
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msg = wxGridTableMessage(self, |
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wxGRIDTABLE_NOTIFY_ROWS_DELETED, |
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curRows - newRows, # position |
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curRows - newRows) # how many |
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self.GetView().ProcessTableMessage(msg) |
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|
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def __SetRow(self, row, group): |
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"""Set a row's data to that of the group. |
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|
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The table is considered modified after this operation. |
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|
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row -- if row is -1 or greater than the current number of rows |
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then group is appended to the end. |
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""" |
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|
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# either append or replace |
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if row == -1 or row >= self.GetNumberRows(): |
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self.tdata.append(group) |
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else: |
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self.tdata[row] = group |
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|
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self.__Modified() |
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|
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def GetColLabelValue(self, col): |
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"""Return the label for the given column.""" |
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return self.__col_labels[col] |
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|
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def GetRowLabelValue(self, row): |
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"""Return the label for the given row.""" |
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|
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group = self.tdata[row] |
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if isinstance(group, ClassGroupDefault): return _("Default") |
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if isinstance(group, ClassGroupSingleton): return _("Singleton") |
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if isinstance(group, ClassGroupRange): return _("Range") |
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if isinstance(group, ClassGroupMap): return _("Map") |
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|
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assert(False) # shouldn't get here |
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return _("") |
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|
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def GetNumberRows(self): |
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"""Return the number of rows.""" |
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return len(self.tdata) |
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|
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def GetNumberCols(self): |
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"""Return the number of columns.""" |
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return self.NUM_COLS |
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|
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def IsEmptyCell(self, row, col): |
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"""Determine if a cell is empty. This is always false.""" |
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return False |
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|
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def GetValue(self, row, col): |
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"""Return the object that is used to represent the given |
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cell coordinates. This may not be a string.""" |
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return self.GetValueAsCustom(row, col, None) |
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|
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def SetValue(self, row, col, value): |
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"""Assign 'value' to the cell specified by 'row' and 'col'. |
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|
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The table is considered modified after this operation. |
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""" |
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|
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self.SetValueAsCustom(row, col, None, value) |
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self.__Modified() |
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|
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def GetValueAsCustom(self, row, col, typeName): |
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"""Return the object that is used to represent the given |
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cell coordinates. This may not be a string. |
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|
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typeName -- unused, but needed to overload wxPyGridTableBase |
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""" |
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|
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group = self.tdata[row] |
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|
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if col == COL_SYMBOL: |
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return group.GetProperties() |
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|
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if col == COL_LABEL: |
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return group.GetLabel() |
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|
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# col must be COL_VALUE |
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assert(col == COL_VALUE) |
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|
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if isinstance(group, ClassGroupDefault): |
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return _("DEFAULT") |
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elif isinstance(group, ClassGroupSingleton): |
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return group.GetValue() |
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elif isinstance(group, ClassGroupRange): |
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return _("%s - %s") % (group.GetMin(), group.GetMax()) |
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|
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assert(False) # shouldn't get here |
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return None |
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|
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def __ParseInput(self, value): |
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"""Try to determine what kind of input value is |
| 395 |
(string, number, or range) |
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|
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Returns a tuple of length one if there is a single |
| 398 |
value, or of length two if it is a range. |
| 399 |
""" |
| 400 |
|
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type = self.fieldType |
| 402 |
|
| 403 |
if type == FIELDTYPE_STRING: |
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return (value,) |
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elif type == FIELDTYPE_INT or type == FIELDTYPE_DOUBLE: |
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|
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if type == FIELDTYPE_INT: |
| 408 |
conv = lambda p: int(float(p)) |
| 409 |
else: |
| 410 |
conv = lambda p: p |
| 411 |
|
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# |
| 413 |
# first try to take the input as a single number |
| 414 |
# if there's an exception try to break it into |
| 415 |
# a range seperated by a '-'. take care to ignore |
| 416 |
# a leading '-' as that could be for a negative number. |
| 417 |
# then try to parse the individual parts. if there |
| 418 |
# is an exception here, let it pass up to the calling |
| 419 |
# function. |
| 420 |
# |
| 421 |
try: |
| 422 |
return (conv(Str2Num(value)),) |
| 423 |
except ValueError: |
| 424 |
i = value.find('-') |
| 425 |
if i == 0: |
| 426 |
i = value.find('-', 1) |
| 427 |
|
| 428 |
return (conv(Str2Num(value[:i])), conv(Str2Num(value[i+1:]))) |
| 429 |
|
| 430 |
assert(False) # shouldn't get here |
| 431 |
return (0,) |
| 432 |
|
| 433 |
|
| 434 |
def SetValueAsCustom(self, row, col, typeName, value): |
| 435 |
"""Set the cell specified by 'row' and 'col' to 'value'. |
| 436 |
|
| 437 |
If column represents the value column, the input is parsed |
| 438 |
to determine if a string, number, or range was entered. |
| 439 |
A new ClassGroup may be created if the type of data changes. |
| 440 |
|
| 441 |
The table is considered modified after this operation. |
| 442 |
|
| 443 |
typeName -- unused, but needed to overload wxPyGridTableBase |
| 444 |
""" |
| 445 |
|
| 446 |
assert(col >= 0 and col < self.GetNumberCols()) |
| 447 |
assert(row >= 0 and row < self.GetNumberRows()) |
| 448 |
|
| 449 |
group = self.tdata[row] |
| 450 |
|
| 451 |
mod = True # assume the data will change |
| 452 |
|
| 453 |
if col == COL_SYMBOL: |
| 454 |
group.SetProperties(value) |
| 455 |
elif col == COL_LABEL: |
| 456 |
group.SetLabel(value) |
| 457 |
elif col == COL_VALUE: |
| 458 |
if isinstance(group, ClassGroupDefault): |
| 459 |
# not allowed to modify the default value |
| 460 |
pass |
| 461 |
elif isinstance(group, ClassGroupMap): |
| 462 |
# something special |
| 463 |
pass |
| 464 |
else: # SINGLETON, RANGE |
| 465 |
try: |
| 466 |
dataInfo = self.__ParseInput(value) |
| 467 |
except ValueError: |
| 468 |
# bad input, ignore the request |
| 469 |
mod = False |
| 470 |
else: |
| 471 |
|
| 472 |
changed = False |
| 473 |
ngroup = group |
| 474 |
props = group.GetProperties() |
| 475 |
|
| 476 |
# |
| 477 |
# try to update the values, which may include |
| 478 |
# changing the underlying group type if the |
| 479 |
# group was a singleton and a range was entered |
| 480 |
# |
| 481 |
if len(dataInfo) == 1: |
| 482 |
if not isinstance(group, ClassGroupSingleton): |
| 483 |
ngroup = ClassGroupSingleton(prop = props) |
| 484 |
changed = True |
| 485 |
ngroup.SetValue(dataInfo[0]) |
| 486 |
elif len(dataInfo) == 2: |
| 487 |
if not isinstance(group, ClassGroupRange): |
| 488 |
ngroup = ClassGroupRange(prop = props) |
| 489 |
changed = True |
| 490 |
ngroup.SetRange(dataInfo[0], dataInfo[1]) |
| 491 |
else: |
| 492 |
assert(False) |
| 493 |
pass |
| 494 |
|
| 495 |
if changed: |
| 496 |
ngroup.SetLabel(group.GetLabel()) |
| 497 |
self.SetClassGroup(row, ngroup) |
| 498 |
else: |
| 499 |
assert(False) # shouldn't be here |
| 500 |
pass |
| 501 |
|
| 502 |
if mod: |
| 503 |
self.__Modified() |
| 504 |
self.GetView().Refresh() |
| 505 |
|
| 506 |
def GetAttr(self, row, col, someExtraParameter): |
| 507 |
"""Returns the cell attributes""" |
| 508 |
|
| 509 |
attr = wxGridCellAttr() |
| 510 |
#attr = wxPyGridTableBase.GetAttr(self, row, col, someExtraParameter) |
| 511 |
|
| 512 |
if col == COL_SYMBOL: |
| 513 |
# we need to create a new renderer each time, because |
| 514 |
# SetRenderer takes control of the parameter |
| 515 |
attr.SetRenderer(ClassRenderer(self.shapeType)) |
| 516 |
attr.SetReadOnly() |
| 517 |
|
| 518 |
return attr |
| 519 |
|
| 520 |
def GetClassGroup(self, row): |
| 521 |
"""Return the ClassGroup object representing row 'row'.""" |
| 522 |
|
| 523 |
return self.tdata[row] # self.GetValueAsCustom(row, COL_SYMBOL, None) |
| 524 |
|
| 525 |
def SetClassGroup(self, row, group): |
| 526 |
self.__SetRow(row, group) |
| 527 |
self.GetView().Refresh() |
| 528 |
|
| 529 |
def __Modified(self, mod = True): |
| 530 |
"""Adjust the modified flag. |
| 531 |
|
| 532 |
mod -- if -1 set the modified flag to False, otherwise perform |
| 533 |
an 'or' operation with the current value of the flag and |
| 534 |
'mod' |
| 535 |
""" |
| 536 |
|
| 537 |
if mod == -1: |
| 538 |
self.modified = False |
| 539 |
else: |
| 540 |
self.modified = mod or self.modified |
| 541 |
|
| 542 |
def IsModified(self): |
| 543 |
"""True if this table is considered modified.""" |
| 544 |
return self.modified |
| 545 |
|
| 546 |
def DeleteRows(self, pos, numRows = 1): |
| 547 |
"""Deletes 'numRows' beginning at row 'pos'. |
| 548 |
|
| 549 |
The row representing the default group is not removed. |
| 550 |
|
| 551 |
The table is considered modified if any rows are removed. |
| 552 |
""" |
| 553 |
|
| 554 |
assert(pos >= 0) |
| 555 |
old_len = len(self.tdata) |
| 556 |
for row in range(pos, pos - numRows, -1): |
| 557 |
group = self.GetClassGroup(row) |
| 558 |
if not isinstance(group, ClassGroupDefault): |
| 559 |
self.tdata.pop(row) |
| 560 |
self.__Modified() |
| 561 |
|
| 562 |
if self.IsModified(): |
| 563 |
self.__NotifyRowChanges(old_len, len(self.tdata)) |
| 564 |
|
| 565 |
def AppendRows(self, numRows = 1): |
| 566 |
"""Append 'numRows' empty rows to the end of the table. |
| 567 |
|
| 568 |
The table is considered modified if any rows are appended. |
| 569 |
""" |
| 570 |
|
| 571 |
old_len = len(self.tdata) |
| 572 |
for i in range(numRows): |
| 573 |
np = ClassGroupSingleton() |
| 574 |
self.__SetRow(-1, np) |
| 575 |
|
| 576 |
if self.IsModified(): |
| 577 |
self.__NotifyRowChanges(old_len, len(self.tdata)) |
| 578 |
|
| 579 |
|
| 580 |
class Classifier(NonModalDialog): |
| 581 |
|
| 582 |
def __init__(self, parent, interactor, name, layer): |
| 583 |
NonModalDialog.__init__(self, parent, interactor, name, |
| 584 |
_("Classifier: %s") % layer.Title()) |
| 585 |
|
| 586 |
panel = wxPanel(self, -1) |
| 587 |
|
| 588 |
self.layer = layer |
| 589 |
|
| 590 |
self.originalClass = self.layer.GetClassification() |
| 591 |
field = self.originalClass.GetField() |
| 592 |
fieldType = self.originalClass.GetFieldType() |
| 593 |
|
| 594 |
topBox = wxBoxSizer(wxVERTICAL) |
| 595 |
|
| 596 |
#topBox.Add(wxStaticText(panel, -1, _("Layer: %s") % layer.Title()), |
| 597 |
#0, wxALIGN_LEFT | wxALL, 4) |
| 598 |
topBox.Add(wxStaticText(panel, -1, |
| 599 |
_("Layer Type: %s") % layer.ShapeType()), |
| 600 |
0, wxALIGN_LEFT | wxALL, 4) |
| 601 |
|
| 602 |
|
| 603 |
# |
| 604 |
# make field combo box |
| 605 |
# |
| 606 |
self.fields = wxComboBox(panel, ID_PROPERTY_SELECT, "", |
| 607 |
style = wxCB_READONLY) |
| 608 |
|
| 609 |
self.num_cols = layer.table.field_count() |
| 610 |
# just assume the first field in case one hasn't been |
| 611 |
# specified in the file. |
| 612 |
self.__cur_field = 0 |
| 613 |
|
| 614 |
self.fields.Append("<None>") |
| 615 |
self.fields.SetClientData(0, None) |
| 616 |
|
| 617 |
for i in range(self.num_cols): |
| 618 |
type, name, len, decc = layer.table.field_info(i) |
| 619 |
self.fields.Append(name) |
| 620 |
|
| 621 |
if name == field: |
| 622 |
self.__cur_field = i + 1 |
| 623 |
self.fields.SetClientData(i + 1, self.originalClass) |
| 624 |
else: |
| 625 |
self.fields.SetClientData(i + 1, None) |
| 626 |
|
| 627 |
|
| 628 |
########### |
| 629 |
|
| 630 |
self.fieldTypeText = wxStaticText(panel, -1, "") |
| 631 |
topBox.Add(self.fieldTypeText, 0, wxGROW | wxALIGN_LEFT | wxALL, 4) |
| 632 |
|
| 633 |
propertyBox = wxBoxSizer(wxHORIZONTAL) |
| 634 |
propertyBox.Add(wxStaticText(panel, -1, _("Field: ")), |
| 635 |
0, wxALIGN_LEFT | wxALL, 4) |
| 636 |
propertyBox.Add(self.fields, 1, wxGROW|wxALL, 4) |
| 637 |
EVT_COMBOBOX(self, ID_PROPERTY_SELECT, self._OnFieldSelect) |
| 638 |
|
| 639 |
topBox.Add(propertyBox, 0, wxGROW, 4) |
| 640 |
|
| 641 |
########### |
| 642 |
# |
| 643 |
# Classification data table |
| 644 |
# |
| 645 |
|
| 646 |
controlBox = wxBoxSizer(wxHORIZONTAL) |
| 647 |
|
| 648 |
self.classGrid = ClassGrid(self) |
| 649 |
self.__SetGridTable(self.__cur_field) |
| 650 |
|
| 651 |
controlBox.Add(self.classGrid, 1, wxGROW, 0) |
| 652 |
|
| 653 |
########### |
| 654 |
# |
| 655 |
# Control buttons: |
| 656 |
# |
| 657 |
self.controlButtons = [] |
| 658 |
|
| 659 |
controlButtonBox = wxBoxSizer(wxVERTICAL) |
| 660 |
|
| 661 |
button = wxButton(panel, ID_CLASSIFY_ADD, _("Add")) |
| 662 |
controlButtonBox.Add(button, 0, wxGROW | wxALL, 4) |
| 663 |
self.controlButtons.append(button) |
| 664 |
|
| 665 |
#button = wxButton(panel, ID_CLASSIFY_GENRANGE, _("Generate Ranges")) |
| 666 |
#controlButtonBox.Add(button, 0, wxGROW | wxALL, 4) |
| 667 |
#self.controlButtons.append(button) |
| 668 |
|
| 669 |
button = wxButton(panel, ID_CLASSIFY_MOVEUP, _("Move Up")) |
| 670 |
controlButtonBox.Add(button, 0, wxGROW | wxALL, 4) |
| 671 |
self.controlButtons.append(button) |
| 672 |
|
| 673 |
button = wxButton(panel, ID_CLASSIFY_MOVEDOWN, _("Move Down")) |
| 674 |
controlButtonBox.Add(button, 0, wxGROW | wxALL, 4) |
| 675 |
self.controlButtons.append(button) |
| 676 |
|
| 677 |
controlButtonBox.Add(60, 20, 0, wxGROW | wxALL | wxALIGN_BOTTOM, 4) |
| 678 |
|
| 679 |
button = wxButton(panel, ID_CLASSIFY_REMOVE, _("Remove")) |
| 680 |
controlButtonBox.Add(button, 0, wxGROW | wxALL | wxALIGN_BOTTOM, 4) |
| 681 |
self.controlButtons.append(button) |
| 682 |
|
| 683 |
controlBox.Add(controlButtonBox, 0, wxGROW, 10) |
| 684 |
topBox.Add(controlBox, 0, wxGROW, 10) |
| 685 |
|
| 686 |
EVT_BUTTON(self, ID_CLASSIFY_ADD, self._OnAdd) |
| 687 |
EVT_BUTTON(self, ID_CLASSIFY_REMOVE, self._OnRemove) |
| 688 |
EVT_BUTTON(self, ID_CLASSIFY_GENRANGE, self._OnGenRange) |
| 689 |
EVT_BUTTON(self, ID_CLASSIFY_MOVEUP, self._OnMoveUp) |
| 690 |
EVT_BUTTON(self, ID_CLASSIFY_MOVEDOWN, self._OnMoveDown) |
| 691 |
|
| 692 |
########### |
| 693 |
|
| 694 |
buttonBox = wxBoxSizer(wxHORIZONTAL) |
| 695 |
buttonBox.Add(wxButton(panel, ID_CLASSIFY_OK, _("OK")), |
| 696 |
0, wxALL, 4) |
| 697 |
buttonBox.Add(60, 20, 0, wxALL, 4) |
| 698 |
buttonBox.Add(wxButton(panel, ID_CLASSIFY_APPLY, _("Apply")), |
| 699 |
0, wxALL, 4) |
| 700 |
buttonBox.Add(60, 20, 0, wxALL, 4) |
| 701 |
buttonBox.Add(wxButton(panel, ID_CLASSIFY_CANCEL, _("Cancel")), |
| 702 |
0, wxALL, 4) |
| 703 |
topBox.Add(buttonBox, 0, wxALIGN_CENTER_HORIZONTAL|wxALIGN_BOTTOM, 0) |
| 704 |
|
| 705 |
EVT_BUTTON(self, ID_CLASSIFY_OK, self._OnOK) |
| 706 |
EVT_BUTTON(self, ID_CLASSIFY_APPLY, self._OnApply) |
| 707 |
EVT_BUTTON(self, ID_CLASSIFY_CANCEL, self._OnCancel) |
| 708 |
|
| 709 |
########### |
| 710 |
|
| 711 |
self.fields.SetSelection(self.__cur_field) |
| 712 |
self.__SelectField(self.__cur_field) |
| 713 |
|
| 714 |
panel.SetAutoLayout(True) |
| 715 |
panel.SetSizer(topBox) |
| 716 |
|
| 717 |
topBox.SetSizeHints(panel) |
| 718 |
topBox.Fit(panel) |
| 719 |
|
| 720 |
self.SetAutoLayout(True) |
| 721 |
self.Fit() |
| 722 |
|
| 723 |
|
| 724 |
def __BuildClassification(self, fieldIndex): |
| 725 |
|
| 726 |
numRows = self.classGrid.GetNumberRows() |
| 727 |
assert(numRows > 0) # there should always be a default row |
| 728 |
|
| 729 |
clazz = Classification() |
| 730 |
if fieldIndex == 0: |
| 731 |
fieldName = None |
| 732 |
fieldType = None |
| 733 |
else: |
| 734 |
fieldName = self.fields.GetString(fieldIndex) |
| 735 |
fieldType = self.layer.GetFieldType(fieldName) |
| 736 |
|
| 737 |
clazz.SetField(fieldName) |
| 738 |
clazz.SetFieldType(fieldType) |
| 739 |
|
| 740 |
|
| 741 |
table = self.classGrid.GetTable() |
| 742 |
clazz.SetDefaultGroup(table.GetClassGroup(0)) |
| 743 |
|
| 744 |
for i in range(1, numRows): |
| 745 |
clazz.AddGroup(table.GetClassGroup(i)) |
| 746 |
|
| 747 |
return clazz |
| 748 |
|
| 749 |
def __SetGridTable(self, fieldIndex): |
| 750 |
|
| 751 |
clazz = self.fields.GetClientData(fieldIndex) |
| 752 |
|
| 753 |
if clazz is None: |
| 754 |
clazz = Classification() |
| 755 |
clazz.SetDefaultGroup( |
| 756 |
ClassGroupDefault( |
| 757 |
self.layer.GetClassification(). |
| 758 |
GetDefaultGroup().GetProperties())) |
| 759 |
|
| 760 |
fieldName = self.fields.GetString(fieldIndex) |
| 761 |
fieldType = self.layer.GetFieldType(fieldName) |
| 762 |
clazz.SetFieldType(fieldType) |
| 763 |
|
| 764 |
self.classGrid.CreateTable(clazz, self.layer.ShapeType()) |
| 765 |
|
| 766 |
|
| 767 |
|
| 768 |
type2string = {None: _("None"), |
| 769 |
FIELDTYPE_STRING: _("Text"), |
| 770 |
FIELDTYPE_INT: _("Integer"), |
| 771 |
FIELDTYPE_DOUBLE: _("Decimal")} |
| 772 |
|
| 773 |
def __SetFieldTypeText(self, fieldIndex): |
| 774 |
fieldName = self.fields.GetString(fieldIndex) |
| 775 |
fieldType = self.layer.GetFieldType(fieldName) |
| 776 |
|
| 777 |
assert(Classifier.type2string.has_key(fieldType)) |
| 778 |
|
| 779 |
text = Classifier.type2string[fieldType] |
| 780 |
|
| 781 |
self.fieldTypeText.SetLabel(_("Field Type: %s") % text) |
| 782 |
|
| 783 |
def __SelectField(self, newIndex, oldIndex = -1): |
| 784 |
|
| 785 |
assert(oldIndex >= -1) |
| 786 |
|
| 787 |
if oldIndex != -1: |
| 788 |
clazz = self.__BuildClassification(oldIndex) |
| 789 |
self.fields.SetClientData(oldIndex, clazz) |
| 790 |
|
| 791 |
self.__SetGridTable(newIndex) |
| 792 |
|
| 793 |
enabled = newIndex != 0 |
| 794 |
|
| 795 |
for b in self.controlButtons: |
| 796 |
b.Enable(enabled) |
| 797 |
|
| 798 |
self.__SetFieldTypeText(newIndex) |
| 799 |
|
| 800 |
|
| 801 |
def _OnFieldSelect(self, event): |
| 802 |
index = self.fields.GetSelection() |
| 803 |
self.__SelectField(index, self.__cur_field) |
| 804 |
self.__cur_field = index |
| 805 |
|
| 806 |
def _OnApply(self, event): |
| 807 |
"""Put the data from the table into a new Classification and hand |
| 808 |
it to the layer. |
| 809 |
""" |
| 810 |
|
| 811 |
clazz = self.fields.GetClientData(self.__cur_field) |
| 812 |
|
| 813 |
# |
| 814 |
# only build the classification if there wasn't one to |
| 815 |
# to begin with or it has been modified |
| 816 |
# |
| 817 |
if clazz is None or self.classGrid.GetTable().IsModified(): |
| 818 |
clazz = self.__BuildClassification(self.__cur_field) |
| 819 |
|
| 820 |
self.layer.SetClassification(clazz) |
| 821 |
|
| 822 |
def _OnOK(self, event): |
| 823 |
self._OnApply(event) |
| 824 |
self.OnClose(event) |
| 825 |
|
| 826 |
def _OnCancel(self, event): |
| 827 |
"""The layer's current classification stays the same.""" |
| 828 |
self.layer.SetClassification(self.originalClass) |
| 829 |
self.OnClose(event) |
| 830 |
|
| 831 |
def _OnAdd(self, event): |
| 832 |
self.classGrid.AppendRows() |
| 833 |
|
| 834 |
def _OnRemove(self, event): |
| 835 |
self.classGrid.DeleteSelectedRows() |
| 836 |
|
| 837 |
def _OnGenRange(self, event): |
| 838 |
print "Classifier._OnGenRange()" |
| 839 |
|
| 840 |
def _OnMoveUp(self, event): |
| 841 |
sel = self.classGrid.GetCurrentSelection() |
| 842 |
|
| 843 |
if len(sel) == 1: |
| 844 |
i = sel[0] |
| 845 |
if i > 1: |
| 846 |
table = self.classGrid.GetTable() |
| 847 |
x = table.GetClassGroup(i - 1) |
| 848 |
y = table.GetClassGroup(i) |
| 849 |
table.SetClassGroup(i - 1, y) |
| 850 |
table.SetClassGroup(i, x) |
| 851 |
self.classGrid.ClearSelection() |
| 852 |
self.classGrid.SelectRow(i - 1) |
| 853 |
|
| 854 |
def _OnMoveDown(self, event): |
| 855 |
sel = self.classGrid.GetCurrentSelection() |
| 856 |
|
| 857 |
if len(sel) == 1: |
| 858 |
i = sel[0] |
| 859 |
table = self.classGrid.GetTable() |
| 860 |
if 0 < i < table.GetNumberRows() - 1: |
| 861 |
x = table.GetClassGroup(i) |
| 862 |
y = table.GetClassGroup(i + 1) |
| 863 |
table.SetClassGroup(i, y) |
| 864 |
table.SetClassGroup(i + 1, x) |
| 865 |
self.classGrid.ClearSelection() |
| 866 |
self.classGrid.SelectRow(i + 1) |
| 867 |
|
| 868 |
|
| 869 |
ID_SELPROP_OK = 4001 |
| 870 |
ID_SELPROP_CANCEL = 4002 |
| 871 |
ID_SELPROP_SPINCTRL = 4002 |
| 872 |
ID_SELPROP_PREVIEW = 4003 |
| 873 |
ID_SELPROP_STROKECLR = 4004 |
| 874 |
ID_SELPROP_FILLCLR = 4005 |
| 875 |
ID_SELPROP_STROKECLRTRANS = 4006 |
| 876 |
ID_SELPROP_FILLCLRTRANS = 4007 |
| 877 |
|
| 878 |
class SelectPropertiesDialog(wxDialog): |
| 879 |
|
| 880 |
def __init__(self, parent, prop, shapeType): |
| 881 |
wxDialog.__init__(self, parent, -1, _("Select Properties"), |
| 882 |
style = wxDEFAULT_DIALOG_STYLE | wxRESIZE_BORDER) |
| 883 |
|
| 884 |
self.prop = ClassGroupProperties(prop) |
| 885 |
|
| 886 |
topBox = wxBoxSizer(wxVERTICAL) |
| 887 |
|
| 888 |
itemBox = wxBoxSizer(wxHORIZONTAL) |
| 889 |
|
| 890 |
# preview box |
| 891 |
previewBox = wxBoxSizer(wxVERTICAL) |
| 892 |
previewBox.Add(wxStaticText(self, -1, _("Preview:")), |
| 893 |
0, wxALIGN_LEFT | wxALL, 4) |
| 894 |
self.previewer = ClassDataPreviewer(None, self.prop, shapeType, |
| 895 |
self, ID_SELPROP_PREVIEW, (40, 40)) |
| 896 |
previewBox.Add(self.previewer, 1, wxGROW, 15) |
| 897 |
|
| 898 |
itemBox.Add(previewBox, 1, wxALIGN_LEFT | wxALL | wxGROW, 0) |
| 899 |
|
| 900 |
# control box |
| 901 |
ctrlBox = wxBoxSizer(wxVERTICAL) |
| 902 |
|
| 903 |
lineColorBox = wxBoxSizer(wxHORIZONTAL) |
| 904 |
lineColorBox.Add( |
| 905 |
wxButton(self, ID_SELPROP_STROKECLR, _("Change Line Color")), |
| 906 |
1, wxALL | wxGROW, 4) |
| 907 |
EVT_BUTTON(self, ID_SELPROP_STROKECLR, self._OnChangeLineColor) |
| 908 |
|
| 909 |
lineColorBox.Add( |
| 910 |
wxButton(self, ID_SELPROP_STROKECLRTRANS, _("Transparent")), |
| 911 |
1, wxALL | wxGROW, 4) |
| 912 |
EVT_BUTTON(self, ID_SELPROP_STROKECLRTRANS, |
| 913 |
self._OnChangeLineColorTrans) |
| 914 |
|
| 915 |
ctrlBox.Add(lineColorBox, 0, |
| 916 |
wxALIGN_CENTER_HORIZONTAL | wxALL | wxGROW, 4) |
| 917 |
|
| 918 |
if shapeType != SHAPETYPE_ARC: |
| 919 |
fillColorBox = wxBoxSizer(wxHORIZONTAL) |
| 920 |
fillColorBox.Add( |
| 921 |
wxButton(self, ID_SELPROP_FILLCLR, _("Change Fill Color")), |
| 922 |
1, wxALL | wxGROW, 4) |
| 923 |
EVT_BUTTON(self, ID_SELPROP_FILLCLR, self._OnChangeFillColor) |
| 924 |
fillColorBox.Add( |
| 925 |
wxButton(self, ID_SELPROP_FILLCLRTRANS, _("Transparent")), |
| 926 |
1, wxALL | wxGROW, 4) |
| 927 |
EVT_BUTTON(self, ID_SELPROP_FILLCLRTRANS, |
| 928 |
self._OnChangeFillColorTrans) |
| 929 |
ctrlBox.Add(fillColorBox, 0, |
| 930 |
wxALIGN_CENTER_HORIZONTAL | wxALL | wxGROW, 4) |
| 931 |
|
| 932 |
spinBox = wxBoxSizer(wxHORIZONTAL) |
| 933 |
spinBox.Add(wxStaticText(self, -1, _("Line Width: ")), |
| 934 |
0, wxALIGN_LEFT | wxALIGN_CENTER_VERTICAL | wxALL, 4) |
| 935 |
self.spinCtrl = wxSpinCtrl(self, ID_SELPROP_SPINCTRL, |
| 936 |
min=1, max=10, |
| 937 |
value=str(prop.GetLineWidth()), |
| 938 |
initial=prop.GetLineWidth()) |
| 939 |
|
| 940 |
EVT_SPINCTRL(self, ID_SELPROP_SPINCTRL, self._OnSpin) |
| 941 |
|
| 942 |
spinBox.Add(self.spinCtrl, 0, wxALIGN_LEFT | wxALL, 4) |
| 943 |
|
| 944 |
ctrlBox.Add(spinBox, 0, wxALIGN_RIGHT | wxALL, 0) |
| 945 |
itemBox.Add(ctrlBox, 0, wxALIGN_RIGHT | wxALL | wxGROW, 0) |
| 946 |
topBox.Add(itemBox, 1, wxALIGN_LEFT | wxALL | wxGROW, 0) |
| 947 |
|
| 948 |
# |
| 949 |
# Control buttons: |
| 950 |
# |
| 951 |
buttonBox = wxBoxSizer(wxHORIZONTAL) |
| 952 |
buttonBox.Add(wxButton(self, ID_SELPROP_OK, _("OK")), |
| 953 |
0, wxALL, 4) |
| 954 |
buttonBox.Add(wxButton(self, ID_SELPROP_CANCEL, _("Cancel")), |
| 955 |
0, wxALL, 4) |
| 956 |
topBox.Add(buttonBox, 0, wxALIGN_CENTER_HORIZONTAL|wxALIGN_BOTTOM, 10) |
| 957 |
|
| 958 |
EVT_BUTTON(self, ID_SELPROP_OK, self._OnOK) |
| 959 |
EVT_BUTTON(self, ID_SELPROP_CANCEL, self._OnCancel) |
| 960 |
|
| 961 |
self.SetAutoLayout(True) |
| 962 |
self.SetSizer(topBox) |
| 963 |
topBox.Fit(self) |
| 964 |
topBox.SetSizeHints(self) |
| 965 |
|
| 966 |
def _OnOK(self, event): |
| 967 |
self.EndModal(wxID_OK) |
| 968 |
|
| 969 |
def _OnCancel(self, event): |
| 970 |
self.EndModal(wxID_CANCEL) |
| 971 |
|
| 972 |
def _OnSpin(self, event): |
| 973 |
self.prop.SetLineWidth(self.spinCtrl.GetValue()) |
| 974 |
self.previewer.Refresh() |
| 975 |
|
| 976 |
def __GetColor(self, cur): |
| 977 |
dialog = wxColourDialog(self) |
| 978 |
dialog.GetColourData().SetColour(Color2wxColour(cur)) |
| 979 |
ret = None |
| 980 |
if dialog.ShowModal() == wxID_OK: |
| 981 |
ret = wxColour2Color(dialog.GetColourData().GetColour()) |
| 982 |
|
| 983 |
dialog.Destroy() |
| 984 |
|
| 985 |
return ret |
| 986 |
|
| 987 |
def _OnChangeLineColor(self, event): |
| 988 |
clr = self.__GetColor(self.prop.GetLineColor()) |
| 989 |
if clr is not None: |
| 990 |
self.prop.SetLineColor(clr) |
| 991 |
self.previewer.Refresh() # XXX: work around, see ClassDataPreviewer |
| 992 |
|
| 993 |
def _OnChangeLineColorTrans(self, event): |
| 994 |
self.prop.SetLineColor(Color.None) |
| 995 |
self.previewer.Refresh() # XXX: work around, see ClassDataPreviewer |
| 996 |
|
| 997 |
def _OnChangeFillColor(self, event): |
| 998 |
clr = self.__GetColor(self.prop.GetFill()) |
| 999 |
if clr is not None: |
| 1000 |
self.prop.SetFill(clr) |
| 1001 |
self.previewer.Refresh() # XXX: work around, see ClassDataPreviewer |
| 1002 |
|
| 1003 |
def _OnChangeFillColorTrans(self, event): |
| 1004 |
self.prop.SetFill(Color.None) |
| 1005 |
self.previewer.Refresh() # XXX: work around, see ClassDataPreviewer |
| 1006 |
|
| 1007 |
def GetClassGroupProperties(self): |
| 1008 |
return self.prop |
| 1009 |
|
| 1010 |
|
| 1011 |
class ClassDataPreviewer(wxWindow): |
| 1012 |
|
| 1013 |
def __init__(self, rect, prop, shapeType, |
| 1014 |
parent = None, id = -1, size = wxDefaultSize): |
| 1015 |
if parent is not None: |
| 1016 |
wxWindow.__init__(self, parent, id, size=size) |
| 1017 |
EVT_PAINT(self, self._OnPaint) |
| 1018 |
|
| 1019 |
self.rect = rect |
| 1020 |
self.prop = prop |
| 1021 |
self.shapeType = shapeType |
| 1022 |
|
| 1023 |
def _OnPaint(self, event): |
| 1024 |
dc = wxPaintDC(self) |
| 1025 |
|
| 1026 |
# XXX: this doesn't seem to be having an effect: |
| 1027 |
dc.DestroyClippingRegion() |
| 1028 |
|
| 1029 |
self.Draw(dc, None) |
| 1030 |
|
| 1031 |
def Draw(self, dc, rect, prop = None, shapeType = None): |
| 1032 |
|
| 1033 |
if prop is None: prop = self.prop |
| 1034 |
if shapeType is None: shapeType = self.shapeType |
| 1035 |
|
| 1036 |
if rect is None: |
| 1037 |
x = y = 0 |
| 1038 |
w, h = self.GetClientSizeTuple() |
| 1039 |
else: |
| 1040 |
x = rect.GetX() |
| 1041 |
y = rect.GetY() |
| 1042 |
w = rect.GetWidth() |
| 1043 |
h = rect.GetHeight() |
| 1044 |
|
| 1045 |
stroke = prop.GetLineColor() |
| 1046 |
if stroke is Color.None: |
| 1047 |
pen = wxTRANSPARENT_PEN |
| 1048 |
else: |
| 1049 |
pen = wxPen(Color2wxColour(stroke), |
| 1050 |
prop.GetLineWidth(), |
| 1051 |
wxSOLID) |
| 1052 |
|
| 1053 |
stroke = prop.GetFill() |
| 1054 |
if stroke is Color.None: |
| 1055 |
brush = wxTRANSPARENT_BRUSH |
| 1056 |
else: |
| 1057 |
brush = wxBrush(Color2wxColour(stroke), wxSOLID) |
| 1058 |
|
| 1059 |
dc.SetPen(pen) |
| 1060 |
dc.SetBrush(brush) |
| 1061 |
|
| 1062 |
if shapeType == SHAPETYPE_ARC: |
| 1063 |
dc.DrawSpline([wxPoint(x, y + h), |
| 1064 |
wxPoint(x + w/2, y + h/4), |
| 1065 |
wxPoint(x + w/2, y + h/4*3), |
| 1066 |
wxPoint(x + w, y)]) |
| 1067 |
|
| 1068 |
elif shapeType == SHAPETYPE_POINT or \ |
| 1069 |
shapeType == SHAPETYPE_POLYGON: |
| 1070 |
|
| 1071 |
dc.DrawCircle(x + w/2, y + h/2, |
| 1072 |
(min(w, h) - prop.GetLineWidth())/2) |
| 1073 |
|
| 1074 |
class ClassRenderer(wxPyGridCellRenderer): |
| 1075 |
|
| 1076 |
def __init__(self, shapeType): |
| 1077 |
wxPyGridCellRenderer.__init__(self) |
| 1078 |
self.previewer = ClassDataPreviewer(None, None, shapeType) |
| 1079 |
|
| 1080 |
def Draw(self, grid, attr, dc, rect, row, col, isSelected): |
| 1081 |
data = grid.GetTable().GetClassGroup(row) |
| 1082 |
|
| 1083 |
dc.SetClippingRegion(rect.GetX(), rect.GetY(), |
| 1084 |
rect.GetWidth(), rect.GetHeight()) |
| 1085 |
dc.SetPen(wxPen(wxLIGHT_GREY)) |
| 1086 |
dc.SetBrush(wxBrush(wxLIGHT_GREY, wxSOLID)) |
| 1087 |
dc.DrawRectangle(rect.GetX(), rect.GetY(), |
| 1088 |
rect.GetWidth(), rect.GetHeight()) |
| 1089 |
|
| 1090 |
if not isinstance(data, ClassGroupMap): |
| 1091 |
self.previewer.Draw(dc, rect, data.GetProperties()) |
| 1092 |
|
| 1093 |
if isSelected: |
| 1094 |
dc.SetPen(wxPen(wxColour(0 * 255, 0 * 255, 0 * 255), |
| 1095 |
4, wxSOLID)) |
| 1096 |
dc.SetBrush(wxTRANSPARENT_BRUSH) |
| 1097 |
dc.DrawRectangle(rect.GetX(), rect.GetY(), |
| 1098 |
rect.GetWidth(), rect.GetHeight()) |
| 1099 |
|
| 1100 |
dc.DestroyClippingRegion() |
| 1101 |
|
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