* src/ReportUtils.py: Added

* src/BaseDoc.py: support for graphs
* src/docgen/OpenOfficeDoc.py: write_at support
* src/Makefile.am: added ReportUtils.py


svn: r3926

ChangeLog

@@ -1,3 +1,9 @@
+2005-01-17  Don Allingham  <dallingham@users.sourceforge.net>
+	* src/ReportUtils.py: Added
+	* src/BaseDoc.py: support for graphs
+	* src/docgen/OpenOfficeDoc.py: write_at support
+	* src/Makefile.am: added ReportUtils.py
+
 2005-01-17  Martin Hawlisch  <Martin.Hawlisch@gmx.de>
 	* src/ReadGedcom.py: Handle missing TRLR record.
 

src/Makefile.am

@@ -86,6 +86,7 @@ gdir_PYTHON = \
 	RelImage.py\
 	RelLib.py\
 	Report.py\
+	ReportUtils.py\
 	SelectChild.py\
 	SelectObject.py\
 	Sort.py\

src/ReportUtils.py

@@ -0,0 +1,197 @@
+#
+# Gramps - a GTK+/GNOME based genealogy program
+#
+# Copyright (C) 2000-2005  Donald N. Allingham
+#
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+#
+
+# $Id$
+
+def pt2cm(pt):
+    """
+    Converts points to centimeters. Fonts are typically specified in points,
+    but the BaseDoc classes use centimeters.
+
+    @param pt: points
+    @type pt: float or int
+    @returns: equivalent units in centimeters
+    @rtype: float
+    """
+    return pt/28.3465
+
+def cm2pt(cm):
+    """
+    Converts centimeters to points. Fonts are typically specified in points,
+    but the BaseDoc classes use centimeters.
+
+    @param cm: centimeters
+    @type cm: float or int
+    @returns: equivalent units in points
+    @rtype: float
+    """
+    return cm*182.88
+
+def draw_pie_chart(doc, center_x, center_y, radius, data, start=0):
+    """
+    Draws a pie chart in the specified document. The data passed is plotted as
+    a pie chart. The data should consist of the actual data. Percentages of
+    each slice are determined by the routine.
+
+    @param doc: Document to which the pie chart should be added
+    @type doc: BaseDoc derived class
+    @param center_x: x coordinate in centimeters where the center of the pie
+       chart should be. 0 is the left hand edge of the document.
+    @type center_x: float
+    @param center_y: y coordinate in centimeters where the center of the pie
+       chart should be. 0 is the top edge of the document
+    @param center_y: float
+    @type radius: radius of the pie chart. The pie charts width and height will
+       be twice this value.
+    @type radius: float
+    @param data: List of tuples containing the data to be plotted. The values
+       are (graphics_format, value), where graphics_format is a BaseDoc
+       GraphicsStyle, and value is a floating point number. Any other items in
+       the tuple are ignored. This allows you to share the same data list with
+       the L{draw_legend} function.
+    @type data: list
+    @param start: starting point in degrees, where the default of 0 indicates
+       a start point extending from the center to right in a horizontal line.
+    @type start: float
+    """
+
+    total = 0.0
+    for item in data:
+        total += item[1]
+
+    for item in data:
+        incr = 360.0*(item[1]/total)
+        doc.draw_wedge(item[0], center_x, center_y, radius, start, start + incr)
+        start += incr
+
+def draw_legend(doc, start_x, start_y, data):
+    """
+    Draws a legend for a graph in the specified document. The data passed is
+    used to define the legend.
+
+    @param doc: Document to which the legend chart should be added
+    @type doc: BaseDoc derived class
+    @param start_x: x coordinate in centimeters where the left hand corner
+        of the legend is placed. 0 is the left hand edge of the document.
+    @type center_x: float
+    @param center_y: y coordinate in centimeters where the top of the legend
+        should be. 0 is the top edge of the document
+    @param center_y: float
+    @param data: List of tuples containing the data to be used to create the
+       legend. In order to be compatible with the graph plots, the first and
+       third values of the tuple used. The format is (graphics_format, value,
+       legend_description).
+    @type data: list
+    """
+    for (format, size, legend) in data:
+        gstyle = doc.get_draw_style(format)
+        pstyle = gstyle.get_paragraph_style()
+        size = pt2cm(doc.get_style(pstyle).get_font().get_size())
+        
+        doc.draw_bar(format, start_x, start_y, start_x + (2*size), start_y + size)
+        doc.write_at(format, legend, start_x + (3*size), start_y - (size*0.25))
+        start_y += size * 1.3
+        
+def draw_vertical_bar_graph(doc, format, start_x, start_y, height, width, data):
+    doc.draw_line(format,start_x,start_y,start_x,start_y+height)
+    doc.draw_line(format,start_x,start_y+height,start_x+width,start_y+height)
+
+    largest = 0.0
+    for item in data:
+        largest = max(item[1],largest)
+
+    scale = float(height)/float(largest)
+    units = len(data)
+    box_width = (float(width) / (units*3.0+1.0))*2
+
+    bottom = float(start_y)+float(height)
+
+    start = 0.5*box_width + start_x
+    for index in range(units):
+        print height, float(data[index][1]) * scale
+        size = float(data[index][1]) * scale
+        doc.draw_bar(data[index][0],start,bottom-size,start+box_width,bottom)
+        start += box_width * 1.5
+
+def age_of(person):
+    pass
+
+if __name__ == "__main__":
+    import BaseDoc
+    import OpenOfficeDoc
+
+    sheet = BaseDoc.StyleSheet()
+    paper = BaseDoc.PaperStyle("Letter",27.94,21.59)
+    doc = OpenOfficeDoc.OpenOfficeDoc(sheet,paper,None)
+
+    font = BaseDoc.FontStyle()
+    font.set_size(10)
+
+    para = BaseDoc.ParagraphStyle()
+    para.set_font(font)
+    sheet.add_style('Normal', para)
+
+    g = BaseDoc.GraphicsStyle()
+    g.set_fill_color((0,255,0))
+    g.set_paragraph_style('Normal')
+    g.set_line_width(1)
+    doc.add_draw_style("green",g)
+
+    g = BaseDoc.GraphicsStyle()
+    g.set_fill_color((255,0,0))
+    g.set_paragraph_style('Normal')
+    g.set_line_width(1)
+    doc.add_draw_style("red",g)
+
+    g = BaseDoc.GraphicsStyle()
+    g.set_fill_color((0,0,255))
+    g.set_paragraph_style('Normal')
+    g.set_line_width(1)
+    doc.add_draw_style("blue",g)
+
+    g = BaseDoc.GraphicsStyle()
+    g.set_fill_color((0,255,255))
+    g.set_paragraph_style('Normal')
+    g.set_line_width(1)
+    doc.add_draw_style("yellow",g)
+
+    g = BaseDoc.GraphicsStyle()
+    g.set_fill_color((0,0,0))
+    g.set_paragraph_style('Normal')
+    g.set_line_width(1)
+    doc.add_draw_style("black",g)
+
+
+    doc.open("foo.sxw")
+    doc.init()
+    chart_data = [
+        ('red',250,'red label'),
+        ('green',35,'green label'),
+        ('blue', 158, 'blue label'),
+        ('yellow', 100, 'yellow label'),
+        ]
+    
+    draw_pie_chart(doc, 4, 4, 3, chart_data)
+    draw_legend(doc, 7.5, 2, chart_data)
+
+    draw_vertical_bar_graph(doc, "black", 2, 10, 8, 12, chart_data)
+    
+    doc.close()