import wx
import wx.combo
#----------------------------------------------------------------------
# This ComboBox class graphically displays the various pen styles that
# are available, making it easy for the user to choose the style they
# want.
class PenStyleComboBox(wx.combo.OwnerDrawnComboBox):
# Overridden from OwnerDrawnComboBox, called to draw each
# item in the list
def OnDrawItem(self, dc, rect, item, flags):
if item == wx.NOT_FOUND:
# painting the control, but there is no valid item selected yet
return
r = wx.Rect(*rect) # make a copy
r.Deflate(3, 5)
penStyle = wx.SOLID
if item == 1:
penStyle = wx.TRANSPARENT
elif item == 2:
penStyle = wx.DOT
elif item == 3:
penStyle = wx.LONG_DASH
elif item == 4:
penStyle = wx.SHORT_DASH
elif item == 5:
penStyle = wx.DOT_DASH
elif item == 6:
penStyle = wx.BDIAGONAL_HATCH
elif item == 7:
penStyle = wx.CROSSDIAG_HATCH
elif item == 8:
penStyle = wx.FDIAGONAL_HATCH
elif item == 9:
penStyle = wx.CROSS_HATCH
elif item == 10:
penStyle = wx.HORIZONTAL_HATCH
elif item == 11:
penStyle = wx.VERTICAL_HATCH
pen = wx.Pen(dc.GetTextForeground(), 3, penStyle)
dc.SetPen(pen)
if flags & wx.combo.ODCB_PAINTING_CONTROL:
# for painting the control itself
dc.DrawLine( r.x+5, r.y+r.height/2, r.x+r.width - 5, r.y+r.height/2 )
else:
# for painting the items in the popup
dc.DrawText(self.GetString( item ),
r.x + 3,
(r.y + 0) + ( (r.height/2) - dc.GetCharHeight() )/2
)
dc.DrawLine( r.x+5, r.y+((r.height/4)*3)+1, r.x+r.width - 5, r.y+((r.height/4)*3)+1 )
# Overridden from OwnerDrawnComboBox, called for drawing the
# background area of each item.
def OnDrawBackground(self, dc, rect, item, flags):
# If the item is selected, or its item # iseven, or we are painting the
# combo control itself, then use the default rendering.
if (item & 1 == 0 or flags & (wx.combo.ODCB_PAINTING_CONTROL |
wx.combo.ODCB_PAINTING_SELECTED)):
wx.combo.OwnerDrawnComboBox.OnDrawBackground(self, dc, rect, item, flags)
return
# Otherwise, draw every other background with different colour.
bgCol = wx.Colour(240,240,250)
dc.SetBrush(wx.Brush(bgCol))
dc.SetPen(wx.Pen(bgCol))
dc.DrawRectangleRect(rect);
# Overridden from OwnerDrawnComboBox, should return the height
# needed to display an item in the popup, or -1 for default
def OnMeasureItem(self, item):
# Simply demonstrate the ability to have variable-height items
if item & 1:
return 36
else:
return 24
# Overridden from OwnerDrawnComboBox. Callback for item width, or
# -1 for default/undetermined
def OnMeasureItemWidth(self, item):
return -1; # default - will be measured from text width
#----------------------------------------------------------------------
class TestPanel(wx.Panel):
def __init__(self, parent, log):
self.log = log
wx.Panel.__init__(self, parent, -1)
penStyles = [
"Solid",
"Transparent",
"Dot",
"Long Dash",
"Short Dash",
"Dot Dash",
"Backward Diagonal Hatch",
"Cross-diagonal Hatch",
"Forward Diagonal Hatch",
"Cross Hatch",
"Horizontal Hatch",
"Vertical Hatch",
]
wx.StaticText(self, -1, "Pen Styles:", (20, 20))
pscb = PenStyleComboBox(self, choices=penStyles, style=wx.CB_READONLY,
pos=(20,40), size=(250, -1))
self.pscb = pscb
#----------------------------------------------------------------------
def runTest(frame, nb, log):
win = TestPanel(nb, log)
return win
#----------------------------------------------------------------------
overview = """<html><body>
<h2><center>wx.combo.OwnerDrawnComboBox</center></h2>
wx.combo.OwnerDrawnComboBox is a combobox with owner-drawn list
items. In essence, it is a wx.combo.ComboCtrl with wx.VListBox popup and
wx.ControlWithItems interface.
</body></html>
"""
if __name__ == '__main__':
import sys,os
import run
run.main(['', os.path.basename(sys.argv[0])] + sys.argv[1:])
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