From 0ba36860ad2973704cf0e53e5a37f944882261de Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Axel=20D=C3=B6rfler?= <axeld@pinc-software.de>
Date: Wed, 6 Jun 2012 00:34:51 +0200
Subject: [PATCH] Added a few convenience methods.

---
 src/apps/sudoku/SudokuField.cpp | 23 ++++++++++++++++++++++-
 src/apps/sudoku/SudokuField.h   |  3 +++
 2 files changed, 25 insertions(+), 1 deletion(-)

diff --git a/src/apps/sudoku/SudokuField.cpp b/src/apps/sudoku/SudokuField.cpp
index a139d473b9..f1ff6bc89b 100644
--- a/src/apps/sudoku/SudokuField.cpp
+++ b/src/apps/sudoku/SudokuField.cpp
@@ -1,5 +1,5 @@
 /*
- * Copyright 2007-2010, Axel Dörfler, axeld@pinc-software.de.
+ * Copyright 2007-2012, Axel Dörfler, axeld@pinc-software.de.
  * Distributed under the terms of the MIT License.
  */
 
@@ -280,6 +280,13 @@ SudokuField::HintMaskAt(uint32 x, uint32 y) const
 }
 
 
+bool
+SudokuField::HasHint(uint32 x, uint32 y, uint32 value) const
+{
+	return (_FieldAt(x, y).hint_mask & (1UL << (value - 1))) != 0;
+}
+
+
 void
 SudokuField::SetValidMaskAt(uint32 x, uint32 y, uint32 validMask)
 {
@@ -294,6 +301,13 @@ SudokuField::ValidMaskAt(uint32 x, uint32 y) const
 }
 
 
+bool
+SudokuField::IsValid(uint32 x, uint32 y, uint32 value) const
+{
+	return (_FieldAt(x, y).valid_mask & (1UL << (value - 1))) != 0;
+}
+
+
 void
 SudokuField::SetFlagsAt(uint32 x, uint32 y, uint32 flags)
 {
@@ -308,6 +322,13 @@ SudokuField::FlagsAt(uint32 x, uint32 y) const
 }
 
 
+bool
+SudokuField::IsInitialValue(uint32 x, uint32 y) const
+{
+	return (_FieldAt(x, y).flags & kInitialValue) != 0;
+}
+
+
 void
 SudokuField::SetValueAt(uint32 x, uint32 y, uint32 value, bool setSolved)
 {
diff --git a/src/apps/sudoku/SudokuField.h b/src/apps/sudoku/SudokuField.h
index 2b0bbf6fe9..ace2647818 100644
--- a/src/apps/sudoku/SudokuField.h
+++ b/src/apps/sudoku/SudokuField.h
@@ -41,13 +41,16 @@ public:
 			void				SetHintMaskAt(uint32 x, uint32 y,
 									uint32 hintMask);
 			uint32				HintMaskAt(uint32 x, uint32 y) const;
+			bool				HasHint(uint32 x, uint32 y, uint32 value) const;
 
 			void				SetValidMaskAt(uint32 x, uint32 y,
 									uint32 validMask);
 			uint32				ValidMaskAt(uint32 x, uint32 y) const;
+			bool				IsValid(uint32 x, uint32 y, uint32 value) const;
 
 			void				SetFlagsAt(uint32 x, uint32 y, uint32 flags);
 			uint32				FlagsAt(uint32 x, uint32 y) const;
+			bool				IsInitialValue(uint32 x, uint32 y) const;
 
 			void				SetValueAt(uint32 x, uint32 y, uint32 value,
 									bool setSolved = false);