From: Harishankar <v.harishankar@gmail.com>
Date: Wed, 8 Dec 2010 05:37:13 +0000 (+0530)
Subject: Clear grid and verify solution implemented
X-Git-Url: https://harishankar.org/repos/?p=getaclue.git;a=commitdiff_plain;h=50103f2c3cb70ee8fad1b13e1ab6864a57c36c29

Clear grid and verify solution implemented

Now clearing the puzzle grid and verifying the solution has
been implemented
---

diff --git a/crosswordpuzzle.py b/crosswordpuzzle.py
index ffdd915..7ee206f 100644
--- a/crosswordpuzzle.py
+++ b/crosswordpuzzle.py
@@ -119,6 +119,11 @@ class NoWordsException (Exception):
 	def __init__ (self):
 		self.msg = "No words in grid"
 
+# exception to raise when solution is imcomplete when trying to verify it
+class IncompleteSolutionException (Exception):
+	def __init__ (self):
+		self.msg = "Solution incomplete"
+
 class CrosswordPuzzle:
 	def __init__ (self, rows, cols):
 		# define number of rows and columns
@@ -643,4 +648,31 @@ class CrosswordPuzzle:
 			for col in range (self.cols):
 				self.data[row][col].revealed = revealed
 
+	# clear the guesses for the board
+	def clear_guesses (self):
+		# run through the grid and set the guesses to None
+		for row in range (self.rows):
+			for col in range (self.cols):
+				self.data[row][col].guess = None
+
+	# verify the solution - return True if all guessed characters are correct
+	# return False if some of them are wrong.
+	# if the board is not completed as yet, raise a IncompleteSolutionException
+	def is_solution_correct (self):
+		# run through the grid and check for each character in occupied cells
+		flag = True
+		for row in range (self.rows):
+			for col in range (self.cols):
+				if (self.data[row][col].occupied_across is True or
+					self.data[row][col].occupied_down is True):
+					# if there is no guess at a particular location raise
+					# the incomplete solution exception
+					if not self.data[row][col].guess:
+						raise IncompleteSolutionException
+					# if a character doesn't match, return False
+					if self.data[row][col].char <> self.data[row][col].guess:
+						flag = False
+
+		# finally return result
+		return flag
 
diff --git a/player_mainwindow.py b/player_mainwindow.py
index b384b54..8ee60a7 100644
--- a/player_mainwindow.py
+++ b/player_mainwindow.py
@@ -33,6 +33,43 @@ class MainWindow:
 
 		self.gtk_main_quit ()
 
+	# callback for menu item clear grid activated event
+	def on_cleargrid_activate (self, menuitem):
+		if self.puzzle:
+			dlg = gtk.MessageDialog (self.window, gtk.DIALOG_MODAL,
+					gtk.MESSAGE_QUESTION, gtk.BUTTONS_YES_NO,
+					"Are you sure you wish to clear your entries?")
+			if dlg.run () == gtk.RESPONSE_YES:
+				# clear the guesses
+				self.puzzle.clear_guesses ()
+				# redraw the grid
+				puzgrid = self.ui.get_object ("puzzlegrid")
+				puzgrid.queue_draw ()
+			dlg.destroy()
+
+	# callback for menu item verify board activated event
+	def on_verify_activate (self, menuitem):
+		if self.puzzle:
+			try:
+				ans = self.puzzle.is_solution_correct ()
+				# if the solution is correct
+				if ans:
+					dlg = gtk.MessageDialog (self.window, gtk.DIALOG_MODAL,
+							gtk.MESSAGE_INFO, gtk.BUTTONS_CLOSE,
+							"Success! Your entries are correct.")
+					dlg.run ()
+				else:
+					dlg = gtk.MessageDialog (self.window, gtk.DIALOG_MODAL,
+							gtk.MESSAGE_INFO, gtk.BUTTONS_CLOSE,
+							"Your solution has some errors. Fix them and try again")
+					dlg.run ()
+			except crosswordpuzzle.IncompleteSolutionException:
+				dlg = gtk.MessageDialog (self.window, gtk.DIALOG_MODAL,
+						gtk.MESSAGE_ERROR, gtk.BUTTONS_CLOSE,
+						"You've not completed the board yet. Cannot verify")
+				dlg.run ()
+			dlg.destroy ()
+
 	# callback for menu item hide solution activated event
 	def on_hidesolution_activate (self, menuitem):
 		if self.puzzle:
diff --git a/playerwindow.glade b/playerwindow.glade
index 500f359..cde1419 100644
--- a/playerwindow.glade
+++ b/playerwindow.glade
@@ -87,6 +87,7 @@
                         <property name="visible">True</property>
                         <property name="label" translatable="yes">_Verify your board...</property>
                         <property name="use_underline">True</property>
+                        <signal name="activate" handler="on_verify_activate"/>
                       </object>
                     </child>
                     <child>
@@ -94,6 +95,7 @@
                         <property name="visible">True</property>
                         <property name="label" translatable="yes">_Clear all...</property>
                         <property name="use_underline">True</property>
+                        <signal name="activate" handler="on_cleargrid_activate"/>
                       </object>
                     </child>
                   </object>