0000876: Calendar would print beyond a day's borders if too many, or too long

svn: r7992

gramps2/ChangeLog

@@ -1,6 +1,9 @@
 2007-01-26  Douglas Blank  <dblank@cs.brynmawr.edu>
 	* src/ReportBase/ReportUtils.py: 0000875: _ReportUtils.py has incorrect 
 	  conversion cm2pt
+	* src/FontScale.py: add string_trim()
+	* src/plugins/Calendar.py: 0000876: Calendar would print beyond a day's 
+	  borders if too many, or too long
 
 2007-01-26  Don Allingham  <don@gramps-project.org>
 	* src/DataViews/_MediaView.py: fix accelerator entries

gramps2/src/FontScale.py

@@ -261,3 +261,63 @@ def string_width(font,text):
         except:
             r = r + l[ord('n')]
     return (r+1)*s
+
+def string_trim(font, text, width, ellipses = "..."):
+    """
+    Like string_width, but this makes sure the length of the
+    string is <= width. Optionally, add ellipses (...).
+    """
+    i = font.get_type_face()
+    j = font.get_bold() + font.get_italic()*2
+    s = font.get_size()
+    l = _font_array[i][j]
+    ellipses_length = 0
+    # get length of each letter
+    for c in ellipses:
+        try:
+            ellipses_length += l[ord(c)]
+        except:
+            ellipses_length += l[ord('n')]
+    # find the part that is < width
+    retval = ""
+    sumlen = 0
+    length = 0
+    for i in range(len(text)):
+        c = text[i]
+        try:
+            length = l[ord(c)]
+        except:
+            length = l[ord('n')]
+        # too long:
+        if (sumlen + length + 1) * s > width:
+            if ellipses_length > 0:
+                # try again with ellipses
+                retval += c
+                sumlen += length
+                break
+            else:
+                # return just this so far
+                return retval
+        retval += c
+        sumlen += length
+    # if exited out the bottom:
+    if (sumlen + 1) * s <= width:
+        return text
+    # too long; try again with ellipses
+    retval = ""
+    sumlen = 0
+    length = 0
+    for i in range(len(text)):
+        c = text[i]
+        try:
+            length = l[ord(c)]
+        except:
+            length = l[ord('n')]
+        if (sumlen + length + 1) * s > width:
+            return retval
+        if (sumlen + length + ellipses_length + 1) * s > width:
+            return retval + ellipses
+        retval += c
+        sumlen += length
+    # should not exit out the bottom!
+    return text

gramps2/src/plugins/Calendar.py

@@ -41,10 +41,12 @@ from PluginUtils import register_report
 from ReportBase import Report, ReportUtils, ReportOptions, \
      CATEGORY_DRAW, CATEGORY_TEXT, MODE_GUI, MODE_BKI, MODE_CLI
 pt2cm = ReportUtils.pt2cm
+cm2pt = ReportUtils.cm2pt
 from Filters import GenericFilter, ParamFilter, Rules
 import GrampsLocale
 import RelLib
 from Utils import probably_alive
+from FontScale import string_trim, string_width
 
 #------------------------------------------------------------------------
 #
@@ -238,6 +240,12 @@ class Calendar(Report):
                         position += (lines  * spacing)
                         current = 0
                         for line in p.split("\n"):
+                            # make sure text will fit:
+                            numpos = pt2cm(self["CAL-Numbers"].get_size())
+                            if position + (current * spacing) - 0.1 >= cell_height - numpos: # font daynums
+                                continue
+                            font = self["CAL-Text"]
+                            line = string_trim(font, line, cm2pt(cell_width + 0.2))
                             self.doc.draw_text("CAL-Text", line, 
                                               day_col * cell_width + 0.1,
                                               header + (week_row + 1) * cell_height - position + (current * spacing) - 0.1)