[reportlab-users] Vertical text in table cell

[Arkadi Colson]

Is there a way to detect the height of the paragraph? For example when 
drawing the text over 2 lines it is needed for alignment...

On 01/31/2011 05:14 PM, Robin Becker wrote:

> #!/usr/bin/env python

>

> """Test for creating vertical table cells in ReportLab tables.

> """

>

> import sys, os.path

>

> from reportlab.lib.units import cm

> from reportlab.lib import colors

> from reportlab.lib.styles import getSampleStyleSheet

> from reportlab.platypus.flowables import Flowable

> from reportlab.platypus import SimpleDocTemplate, Paragraph, Table

>

>

> class RotededText(Flowable):

>      '''Rotates a text in a table cell.'''

>

>      def __init__(self, text ):

>          Flowable.__init__(self)

>          self.text=text

>

>      def draw(self):

>          canvas = self.canv

>          canvas.rotate(90)

>          fs = canvas._fontsize

>          canvas.translate(1, -fs/1.2) # canvas._leading?

>          canvas.drawString(0, 0, self.text)

>

>      def wrap(self, aW, aH):

>          canv = self.canv

>          fn, fs = canv._fontname, canv._fontsize

>          return canv._leading, 1 + canv.stringWidth(self.text, fn, fs)

>

> class RotatedParagraph(Flowable):

>      '''Rotates a text in a table cell.'''

>

>      def __init__(self, text ):

>          Flowable.__init__(self)

>          self.text=text

>

>      def draw(self):

>          canvas = self.canv

>          canvas.rotate(90)

>          fs = canvas._fontsize

>          canvas.translate(1, -self.height) # canvas._leading?

>          self.text.canv = canvas

>          try:

>              self.text.draw()

>          finally:

>              del self.text.canv

>

>

>      def wrap(self, aW, aH):

>          w, h = self.text.wrap(aH,aW)

>          self.width,self.height = h, w

>          return h, w

>

>

> def main():

>      stylesheet = getSampleStyleSheet()

>      normal = stylesheet['Normal']

>      doc = SimpleDocTemplate("test_rotated_cells.pdf")

>      cli = RotatedParagraph(Paragraph('Clientes de cobranca muito duvidosa', style=normal))

>

>      data = [

>          ('codigo', RotededText('NIVEL'), RotededText('FOOBAR'), 'descricao'),

>          ('11', '0', '1', 'Caixa'),

>          ('21', '1', '2', cli)

>      ]

>

>      style = [

>          ('ALIGN', (1,0), (1, -1), 'CENTER'),

>          ('INNERGRID', (0,0), (-1,-1), 0.25, colors.red),

>          ('BOX', (0,0), (-1,-1), 0.25, colors.blue),

>          ('VALIGN', (0,0), (-1,-1), 'BOTTOM')

>      ]

>

>      tab = Table(data, rowHeights=[None,None,100],colWidths=[40, 20, 20, None], style=style)

>      story = [tab]

>      doc.build(story)

>

>

> if __name__ == "__main__":

>      main()


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