Completed the HTML exporter
[getaclue.git] / crosswordpuzzle.py
index 694a766..7d3b270 100644 (file)
@@ -4,6 +4,9 @@
 
 # Class for the puzzle data representation
 
+# for export to PNG image
+import cairo
+
 class GridItem:
        # initialize the item
        def __init__ (self, item_char='.', across_start = False, down_start = False,
@@ -73,9 +76,99 @@ class CrosswordPuzzle:
                        for j in range (cols):
                                self.data[i].append (GridItem ())
 
+       # export to an image
+       def export_image (self, pngfile, htmlfile=None, puztitle="Crossword Puzzle",
+               solution=True):
+               # don't export if grid is not frozen
+               if self.frozen_grid is False:
+                       raise FrozenGridException
+
+               # create cairo image surface and context
+               px = 30
+               surf = cairo.ImageSurface (cairo.FORMAT_RGB24, self.cols*px, self.rows*px)
+               ctx = cairo.Context (surf)
+
+               ctx.set_source_rgb (1, 1, 1)
+               ctx.rectangle (0, 0, self.cols*px, self.rows*px)
+               ctx.fill ()
+
+               # get the clues across and down
+               clues_across = self.get_clues_across ()
+               clues_down = self.get_clues_down ()
+
+
+               # traverse through the grid
+               for row in range (self.rows):
+                       for col in range (self.cols):
+                               # if grid is un-occupied
+                               if (self.data[row][col].occupied_across is False and
+                                       self.data[row][col].occupied_down is False):
+                                       ctx.set_source_rgb (0, 0, 0)
+                                       ctx.rectangle (col*px, row*px, px, px)
+                                       ctx.fill ()
+                               # grid is occupied
+                               else:
+                                       ctx.set_source_rgb (1, 1, 1)
+                                       ctx.rectangle (col*px, row*px, px, px)
+                                       ctx.fill ()
+                                       ctx.set_source_rgb (0, 0, 0)
+                                       ctx.rectangle (col*px, row*px, px, px)
+                                       ctx.stroke ()
+                                       # if solution is not to be provided, number the grid
+                                       if solution is False:
+                                               if self.data[row][col].numbered <> 0:
+                                                       ctx.select_font_face ("Serif")
+                                                       ctx.set_font_size (10)
+                                                       ctx.move_to (col*px+5, row*px+10)
+                                                       ctx.show_text (str(self.data[row][col].numbered))
+                                       # display the words
+                                       else:
+                                               ctx.select_font_face ("Serif")
+                                               ctx.set_font_size (16)
+                                               ctx.move_to (col*px+10, row*px+20)
+                                               ctx.show_text (self.data[row][col].char)
+
+               surf.write_to_png (open (pngfile, "wb"))
+
+               # if solution is false, publish the clues and the image in a HTML file
+               if htmlfile and solution is False:
+                       html_contents = ["<html>", "<head>", "<title>"]
+                       html_contents.append (puztitle)
+                       html_contents.append ("</title>")
+                       html_contents.append ("</head>")
+                       html_contents.append ("<body>")
+                       html_contents.append ("<h1>" + puztitle + "</h1>")
+                       html_contents.append ('<img src="' + pngfile + '" alt="puzzle" />')
+
+                       html_contents.append ("<h2>Across clues</h2>")
+                       html_contents.append ("<p>")
+                       for word, clue in clues_across:
+                               clue_str = str (self.data[word[1]][word[2]].numbered) + " - " \
+                                                       + clue
+                               html_contents.append (clue_str)
+                               html_contents.append ("<br />")
+                       html_contents.append ("</p>")
+
+                       html_contents.append ("<h2>Down clues</h2>")
+                       html_contents.append ("<p>")
+                       for word, clue in clues_down:
+                               clue_str = str (self.data[word[1]][word[2]].numbered) + " - " \
+                                                       + clue
+                               html_contents.append (clue_str)
+                               html_contents.append ("<br />")
+                       html_contents.append ("</p>")
+                       html_contents.append ("</body>")
+                       html_contents.append ("</html>")
+
+                       html_str = "\r\n".join (html_contents)
+
+                       fhtml = open (htmlfile, "wb")
+                       fhtml.write (html_str)
+                       fhtml.close ()
+
        # get the AcrossLite(TM) data for exporting
        def export_acrosslite (self, title, author, copyright):
-               # don't export if grid is frozen
+               # don't export if grid is not frozen
                if self.frozen_grid is False:
                        raise FrozenGridException