feature: set table cell background color

Hi…

I’m trying to add the ability in my code to set the background colour of the cell. This should be done similar to the font colours, by adding a solidFill etc, so I wrote:

def set_cell_background_color(cell, rgbColor):
   print "cell %r" % cell
   print "color %s" % rgbColor
   tc = cell._Cell__tc
   solidFill = _SubElement(tc, 'a:solidFill')
   srgbClr = _SubElement(solidFill, 'a:srgbClr')
   srgbClr.set('val', rgbColor)

Which I guessed as being correct after looking in shapes.py at _Cell, and seeing where it put the marL etc attributes. This ends up creating an empty tcPr element, followed by the solidFill, which Powerpoint doesn’t like.

It seems that _Cell does, somehow/somewhere, create an empty tcPr element, but I can’t see how to add my solidFill to it. If I change my code to:

def set_cell_background_color(cell, rgbColor):
   print "cell %r" % cell
   print "color %s" % rgbColor
   tc = cell._Cell__tc
   solidFill = _SubElement(tc, 'a:solidFill')
   srgbClr = _SubElement(solidFill, 'a:srgbClr')
   srgbClr.set('val', rgbColor)

Then I get TWO tcPr elements, which isn’t allowed.

Any ideas?

(Issue completely rewritten as I was being a nitwit…)

From the relaxng spec: a_CT_TableCell =

default value: 1

attribute rowSpan { xsd:int }?,

default value: 1

attribute gridSpan { xsd:int }?,

default value: false

attribute hMerge { xsd:boolean }?,

default value: false

attribute vMerge { xsd:boolean }?, attribute id { xsd:string }?, element txBody { a_CT_TextBody }?, element tcPr { a_CT_TableCellProperties }?, element extLst { a_CT_OfficeArtExtensionList }?

a_CT_TableCellProperties =

default value: 91440

attribute marL { a_ST_Coordinate32 }?,

default value: 91440

attribute marR { a_ST_Coordinate32 }?,

default value: 45720

attribute marT { a_ST_Coordinate32 }?,

default value: 45720

attribute marB { a_ST_Coordinate32 }?,

default value: horz

attribute vert { a_ST_TextVerticalType }?,

default value: t

attribute anchor { a_ST_TextAnchoringType }?,

default value: false

attribute anchorCtr { xsd:boolean }?,

default value: clip

attribute horzOverflow { a_ST_TextHorzOverflowType }?, element lnL { a_CT_LineProperties }?, element lnR { a_CT_LineProperties }?, element lnT { a_CT_LineProperties }?, element lnB { a_CT_LineProperties }?, element lnTlToBr { a_CT_LineProperties }?, element lnBlToTr { a_CT_LineProperties }?, element cell3D { a_CT_Cell3D }?, a_EG_FillProperties?, element headers { a_CT_Headers }?, element extLst { a_CT_OfficeArtExtensionList }?

[scanny]

Here’s a specific snippet for a table cell:

from pptx.dml.color import RGBColor

# cell is a table cell
# set fill type to solid color first
cell.fill.solid()

# set foreground (fill) color to a specific RGB color
cell.fill.fore_color.rgb = RGBColor(0xFB, 0x8F, 0x00)

[scanny]

This feature was added with the latest commit on develop: c5e0fba9ba81046f07ccb590c088bb15925e0426

Usage is the same as for shape, substituting cell where shape appears in this sample code