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#!/usr/bin/env python
# Tags: phoenix-port, py3-port
import wx
import wx.dataview as dv
#----------------------------------------------------------------------
class MyCustomRenderer(dv.DataViewCustomRenderer):
def __init__(self, log, *args, **kw):
dv.DataViewCustomRenderer.__init__(self, *args, **kw)
self.log = log
self.value = None
self.EnableEllipsize(wx.ELLIPSIZE_END)
def SetValue(self, value):
#self.log.write('SetValue: %s' % value)
self.value = value
return True
def GetValue(self):
self.log.write('GetValue: {}'.format(value))
return self.value
def GetSize(self):
# Return the size needed to display the value. The renderer
# has a helper function we can use for measuring text that is
# aware of any custom attributes that may have been set for
# this item.
value = self.value if self.value else ""
size = self.GetTextExtent(value)
size += (2,2)
#self.log.write('GetSize("{}"): {}'.format(value, size))
return size
def Render(self, rect, dc, state):
#if state != 0:
# self.log.write('Render: %s, %d' % (rect, state))
if not state & dv.DATAVIEW_CELL_SELECTED:
# we'll draw a shaded background to see if the rect correctly
# fills the cell
dc.SetBrush(wx.Brush('#ffd0d0'))
dc.SetPen(wx.TRANSPARENT_PEN)
rect.Deflate(1, 1)
dc.DrawRoundedRectangle(rect, 2)
# And then finish up with this helper function that draws the
# text for us, dealing with alignment, font and color
# attributes, etc.
value = self.value if self.value else ""
self.RenderText(value,
0, # x-offset
rect,
dc,
state # wxDataViewCellRenderState flags
)
return True
def ActivateCell(self, rect, model, item, col, mouseEvent):
self.log.write("ActivateCell")
return False
# The HasEditorCtrl, CreateEditorCtrl and GetValueFromEditorCtrl
# methods need to be implemented if this renderer is going to
# support in-place editing of the cell value, otherwise they can
# be omitted.
def HasEditorCtrl(self):
self.log.write('HasEditorCtrl')
return True
def CreateEditorCtrl(self, parent, labelRect, value):
self.log.write('CreateEditorCtrl: %s' % labelRect)
ctrl = wx.TextCtrl(parent,
value=value,
pos=labelRect.Position,
size=labelRect.Size)
# select the text and put the caret at the end
ctrl.SetInsertionPointEnd()
ctrl.SelectAll()
return ctrl
def GetValueFromEditorCtrl(self, editor):
self.log.write('GetValueFromEditorCtrl: %s' % editor)
value = editor.GetValue()
return value
# The LeftClick and Activate methods serve as notifications
# letting you know that the user has either clicked or
# double-clicked on an item. Implementing them in your renderer
# is optional.
def LeftClick(self, pos, cellRect, model, item, col):
self.log.write('LeftClick')
return False
def Activate(self, cellRect, model, item, col):
self.log.write('Activate')
return False
#----------------------------------------------------------------------
# To help focus this sample on the custom renderer, we'll reuse the
# model class from another sample.
from DVC_IndexListModel import TestModel
class TestPanel(wx.Panel):
def __init__(self, parent, log, model=None, data=None):
self.log = log
wx.Panel.__init__(self, parent, -1)
# Create a dataview control
self.dvc = dv.DataViewCtrl(self,
style=wx.BORDER_THEME
| dv.DV_ROW_LINES
#| dv.DV_HORIZ_RULES
| dv.DV_VERT_RULES
| dv.DV_MULTIPLE
)
# Create an instance of the model
if model is None:
self.model = TestModel(data, log)
else:
self.model = model
self.dvc.AssociateModel(self.model)
# Now we create some columns.
col = self.dvc.AppendTextColumn("Id", 0, width=40)
col.Alignment = wx.ALIGN_RIGHT
col.MinWidth = 40
col = self.dvc.AppendTextColumn("Artist", 1, width=170, mode=dv.DATAVIEW_CELL_EDITABLE)
col.Alignment = wx.ALIGN_LEFT
renderer = MyCustomRenderer(self.log, mode=dv.DATAVIEW_CELL_EDITABLE)
col = dv.DataViewColumn("Title", renderer, 2, width=260)
col.Alignment = wx.ALIGN_LEFT
self.dvc.AppendColumn(col)
col = self.dvc.AppendTextColumn("Genre", 3, width=80, mode=dv.DATAVIEW_CELL_EDITABLE)
col.Alignment = wx.ALIGN_LEFT
self.Sizer = wx.BoxSizer(wx.VERTICAL)
self.Sizer.Add(self.dvc, 1, wx.EXPAND)
def ShowMessage(self):
msg = "This platform does not have good support for editing cells " \
"which have a custom renderer, so the Title column's mode " \
"will be set to DATAVIEW_CELL_INERT instead."
wx.MessageBox(msg, "Custom Renderer Info", style=wx.OK|wx.ICON_INFORMATION)
#----------------------------------------------------------------------
def runTest(frame, nb, log):
# Get the data from the ListCtrl sample to play with, converting it
# from a dictionary to a list of lists, including the dictionary key
# as the first element of each sublist.
import ListCtrl
musicdata = ListCtrl.musicdata.items()
musicdata = sorted(musicdata)
musicdata = [[str(k)] + list(v) for k,v in musicdata]
win = TestPanel(nb, log, data=musicdata)
return win
#----------------------------------------------------------------------
overview = """<html><body>
<h2><center>DataViewCustomRenderer</center></h2>
This sample shows how to implement a renderer for drawing the cells in a
DataViewControl in a custom manner.
</body></html>
"""
if __name__ == '__main__':
import sys,os
import run
run.main(['', os.path.basename(sys.argv[0])] + sys.argv[1:])
|
