--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/reportlab/demos/pythonpoint/customshapes.py Thu Apr 06 09:47:20 2000 +0000
@@ -0,0 +1,325 @@
+###############################################################################
+#
+# ReportLab Public License Version 1.0
+#
+# Except for the change of names the spirit and intention of this
+# license is the same as that of Python
+#
+# (C) Copyright ReportLab Inc. 1998-2000.
+#
+#
+# All Rights Reserved
+#
+# Permission to use, copy, modify, and distribute this software and its
+# documentation for any purpose and without fee is hereby granted, provided
+# that the above copyright notice appear in all copies and that both that
+# copyright notice and this permission notice appear in supporting
+# documentation, and that the name of ReportLab not be used
+# in advertising or publicity pertaining to distribution of the software
+# without specific, written prior permission.
+#
+#
+# Disclaimer
+#
+# ReportLab Inc. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS
+# SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS,
+# IN NO EVENT SHALL ReportLab BE LIABLE FOR ANY SPECIAL, INDIRECT
+# OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS
+# OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
+# OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+# PERFORMANCE OF THIS SOFTWARE.
+#
+###############################################################################
+# $Log: customshapes.py,v $
+# Revision 1.1 2000/04/06 09:47:20 andy_robinson
+# Added several new shape tags.
+# Broke out parser into separate module, to
+# allow for alternative parsers in future.
+# Broke out 'user guide' into pythonpoint.xml
+#
+# Revision 1.6 2000/03/21 19:36:37 rgbecker
+# 8bit character fixes
+#
+# Revision 1.5 2000/02/23 15:09:23 rgbecker
+# Memory leak fixes
+#
+# Revision 1.4 2000/02/17 02:06:28 rgbecker
+# Docstring & other fixes
+#
+# Revision 1.3 2000/02/16 09:42:50 rgbecker
+# Conversion to reportlab package
+#
+# Revision 1.2 2000/02/15 17:55:59 rgbecker
+# License text fixes
+#
+# Revision 1.1.1.1 2000/02/15 15:08:55 rgbecker
+# Initial setup of demos directory and contents.
+#
+__version__=''' $Id: customshapes.py,v 1.1 2000/04/06 09:47:20 andy_robinson Exp $ '''
+# xml parser stuff for PythonPoint
+# PythonPoint Markup Language!
+__doc__="""
+This demonstrates a custom shape for use with the <customshape> tag.
+The shape must fulfil a very simple interface, which may change in
+future.
+
+The XML tag currently has this form:
+ <customshape
+ module="customshapes.py"
+ class = "MyShape"
+ initargs="(100,200,3)"
+ />
+
+PythonPoint will look in the given module for the given class,
+evaluate the arguments string and pass it to the constructor.
+Then, it will call
+
+ object.drawOn(canvas)
+
+Thus your object must be fully defined by the constructor.
+For this one, we pass three argumenyts: x, y and scale.
+This does a five-tile jigsaw over which words can be overlaid; based
+on work done for a customer's presentation.
+
+
+"""
+
+import reportlab.pdfgen.canvas
+from reportlab.lib import colors
+## custom shape for use with PythonPoint.
+
+
+class Jigsaw:
+ """This draws a jigsaw patterm. By default it is centred on 0,0
+ and has dimensions of 200 x 140; use the x/y/scale attributes
+ to move it around."""
+ #Using my usual bulldozer coding style - I am sure a mathematician could
+ #derive an elegant way to draw this, but I just took a ruler, guessed at
+ #the control points, and reflected a few lists at the interactive prompt.
+
+ def __init__(self, x, y, scale=1):
+ self.width = 200
+ self.height = 140
+ self.x = x
+ self.y = y
+ self.scale = scale
+
+ def drawOn(self, canvas):
+ canvas.saveState()
+
+ canvas.setFont('Helvetica-Bold',24)
+ canvas.drawString(100,700,'A Custom Shape')
+
+ canvas.translate(self.x, self.y)
+ canvas.scale(self.scale, self.scale)
+ self.drawBounds(canvas)
+
+ self.drawCentre(canvas)
+ self.drawTopLeft(canvas)
+ self.drawBottomLeft(canvas)
+ self.drawBottomRight(canvas)
+ self.drawTopRight(canvas)
+
+ canvas.restoreState()
+
+ def curveThrough(self, path, pointlist):
+ """Helper to curve through set of control points."""
+ assert len(pointlist) % 3 == 1, "No. of points must be 3n+1 for integer n"
+ (x,y) = pointlist[0]
+ path.moveTo(x, y)
+ idx = 1
+ while idx < len(pointlist)-2:
+ p1, p2, p3 = pointlist[idx:idx+3]
+ path.curveTo(p1[0], p1[1], p2[0], p2[1], p3[0], p3[1])
+ idx = idx + 3
+
+ def drawShape(self, canvas, controls, color):
+ """Utlity to draw a closed shape through a list of control points;
+ extends the previous proc"""
+ canvas.setFillColor(color)
+ p = canvas.beginPath()
+ self.curveThrough(p, controls)
+ p.close()
+ canvas.drawPath(p, stroke=1, fill=1)
+
+
+ def drawBounds(self, canvas):
+ """Guidelines to help me draw - not needed in production"""
+ canvas.setStrokeColor(colors.red)
+ canvas.rect(-100,-70,200,140)
+ canvas.line(-100,0,100,0)
+ canvas.line(0,70,0,-70)
+ canvas.setStrokeColor(colors.black)
+
+
+ def drawCentre(self, canvas):
+ controls = [ (0,50), #top
+
+ #top right edge - duplicated for that corner piece
+ (5,50),(10,45),(10,40),
+ (10,35),(15,30),(20,30),
+ (25,30),(30,25),(30,20),
+ (30,15),(35,10),(40,10),
+ (45,10),(50,5),(50,0),
+
+
+ #bottom right edge
+ (50, -5), (45,-10), (40,-10),
+ (35,-10), (30,-15), (30, -20),
+ (30,-25), (25,-30), (20,-30),
+ (15,-30), (10,-35), (10,-40),
+ (10,-45),(5,-50),(0,-50),
+
+ #bottom left
+ (-5,-50),(-10,-45),(-10,-40),
+ (-10,-35),(-15,-30),(-20,-30),
+ (-25,-30),(-30,-25),(-30,-20),
+ (-30,-15),(-35,-10),(-40,-10),
+ (-45,-10),(-50,-5),(-50,0),
+
+ #top left
+ (-50,5),(-45,10),(-40,10),
+ (-35,10),(-30,15),(-30,20),
+ (-30,25),(-25,30),(-20,30),
+ (-15,30),(-10,35),(-10,40),
+ (-10,45),(-5,50),(0,50)
+
+ ]
+
+ self.drawShape(canvas, controls, colors.yellow)
+
+ def drawTopLeft(self, canvas):
+ controls = [(-100,70),
+ (-100,69),(-100,1),(-100,0),
+ (-99,0),(-91,0),(-90,0),
+
+ #jigsaw interlock - 4 sections
+ (-90,5),(-92,5),(-92,10),
+ (-92,15), (-85,15), (-80,15),
+ (-75,15),(-68,15),(-68,10),
+ (-68,5),(-70,5),(-70,0),
+ (-69,0),(-51,0),(-50,0),
+
+ #five distinct curves
+ (-50,5),(-45,10),(-40,10),
+ (-35,10),(-30,15),(-30,20),
+ (-30,25),(-25,30),(-20,30),
+ (-15,30),(-10,35),(-10,40),
+ (-10,45),(-5,50),(0,50),
+
+ (0,51),(0,69),(0,70),
+ (-1,70),(-99,70),(-100,70)
+ ]
+ self.drawShape(canvas, controls, colors.teal)
+
+ def drawBottomLeft(self, canvas):
+
+ controls = [(-100,-70),
+ (-99,-70),(-1,-70),(0,-70),
+ (0,-69),(0,-51),(0,-50),
+
+ #wavyline
+ (-5,-50),(-10,-45),(-10,-40),
+ (-10,-35),(-15,-30),(-20,-30),
+ (-25,-30),(-30,-25),(-30,-20),
+ (-30,-15),(-35,-10),(-40,-10),
+ (-45,-10),(-50,-5),(-50,0),
+
+ #jigsaw interlock - 4 sections
+
+ (-51, 0), (-69, 0), (-70, 0),
+ (-70, 5), (-68, 5), (-68, 10),
+ (-68, 15), (-75, 15), (-80, 15),
+ (-85, 15), (-92, 15), (-92, 10),
+ (-92, 5), (-90, 5), (-90, 0),
+
+ (-91,0),(-99,0),(-100,0)
+
+ ]
+ self.drawShape(canvas, controls, colors.green)
+
+
+ def drawBottomRight(self, canvas):
+
+ controls = [ (100,-70),
+ (100,-69),(100,-1),(100,0),
+ (99,0),(91,0),(90,0),
+
+ #jigsaw interlock - 4 sections
+ (90, -5), (92, -5), (92, -10),
+ (92, -15), (85, -15), (80, -15),
+ (75, -15), (68, -15), (68, -10),
+ (68, -5), (70, -5), (70, 0),
+ (69, 0), (51, 0), (50, 0),
+
+ #wavyline
+ (50, -5), (45,-10), (40,-10),
+ (35,-10), (30,-15), (30, -20),
+ (30,-25), (25,-30), (20,-30),
+ (15,-30), (10,-35), (10,-40),
+ (10,-45),(5,-50),(0,-50),
+
+ (0,-51), (0,-69), (0,-70),
+ (1,-70),(99,-70),(100,-70)
+
+ ]
+ self.drawShape(canvas, controls, colors.navy)
+
+
+ def drawBottomLeft(self, canvas):
+
+ controls = [(-100,-70),
+ (-99,-70),(-1,-70),(0,-70),
+ (0,-69),(0,-51),(0,-50),
+
+ #wavyline
+ (-5,-50),(-10,-45),(-10,-40),
+ (-10,-35),(-15,-30),(-20,-30),
+ (-25,-30),(-30,-25),(-30,-20),
+ (-30,-15),(-35,-10),(-40,-10),
+ (-45,-10),(-50,-5),(-50,0),
+
+ #jigsaw interlock - 4 sections
+
+ (-51, 0), (-69, 0), (-70, 0),
+ (-70, 5), (-68, 5), (-68, 10),
+ (-68, 15), (-75, 15), (-80, 15),
+ (-85, 15), (-92, 15), (-92, 10),
+ (-92, 5), (-90, 5), (-90, 0),
+
+ (-91,0),(-99,0),(-100,0)
+
+ ]
+ self.drawShape(canvas, controls, colors.green)
+
+
+ def drawTopRight(self, canvas):
+ controls = [(100, 70),
+ (99, 70), (1, 70), (0, 70),
+ (0, 69), (0, 51), (0, 50),
+ (5, 50), (10, 45), (10, 40),
+ (10, 35), (15, 30), (20, 30),
+ (25, 30), (30, 25), (30, 20),
+ (30, 15), (35, 10), (40, 10),
+ (45, 10), (50, 5), (50, 0),
+ (51, 0), (69, 0), (70, 0),
+ (70, -5), (68, -5), (68, -10),
+ (68, -15), (75, -15), (80, -15),
+ (85, -15), (92, -15), (92, -10),
+ (92, -5), (90, -5), (90, 0),
+ (91, 0), (99, 0), (100, 0)
+ ]
+
+ self.drawShape(canvas, controls, colors.magenta)
+
+
+def run():
+ c = reportlab.pdfgen.canvas.Canvas('customshape.pdf')
+
+ J = Jigsaw(300, 540, 2)
+ J.drawOn(c)
+ c.save()
+
+if __name__ == '__main__':
+ run()
+
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