From 24a77ea0bee4f9b74b0f7f3839b13bb39e932504 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Axel=20D=C3=B6rfler?= <axeld@pinc-software.de>
Date: Sat, 8 Jan 2011 16:14:13 +0000
Subject: [PATCH] * Added ItemAt() method that accepts column and row.

git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@40154 a95241bf-73f2-0310-859d-f6bbb57e9c96
---
 headers/os/interface/GridLayout.h | 14 +++++++++-----
 src/kits/interface/GridLayout.cpp | 13 ++++++++++++-
 2 files changed, 21 insertions(+), 6 deletions(-)

diff --git a/headers/os/interface/GridLayout.h b/headers/os/interface/GridLayout.h
index 63bfbc8a07..f0acbc9e42 100644
--- a/headers/os/interface/GridLayout.h
+++ b/headers/os/interface/GridLayout.h
@@ -1,10 +1,11 @@
 /*
- * Copyright 2006-2010, Haiku, Inc. All rights reserved.
+ * Copyright 2006-2011, Haiku, Inc. All rights reserved.
  * Distributed under the terms of the MIT License.
  */
 #ifndef	_GRID_LAYOUT_H
 #define	_GRID_LAYOUT_H
 
+
 #include <TwoDimensionalLayout.h>
 
 
@@ -44,6 +45,8 @@ public:
 			float				MaxRowHeight(int32 row) const;
 			void				SetMaxRowHeight(int32 row, float height);
 
+			BLayoutItem*		ItemAt(int32 column, int32 row) const;
+
 	virtual	BLayoutItem*		AddView(BView* child);
 	virtual	BLayoutItem*		AddView(int32 index, BView* child);
 	virtual	BLayoutItem*		AddView(BView* child, int32 column, int32 row,
@@ -63,13 +66,13 @@ public:
 	virtual status_t			ItemUnarchived(const BMessage* from,
 									BLayoutItem* item, int32 index);
 
-protected:	
+protected:
 	virtual	bool				ItemAdded(BLayoutItem* item, int32 atIndex);
 	virtual	void				ItemRemoved(BLayoutItem* item, int32 fromIndex);
 
 	virtual	bool				HasMultiColumnItems();
 	virtual	bool				HasMultiRowItems();
-	
+
 	virtual	int32				InternalCountColumns();
 	virtual	int32				InternalCountRows();
 	virtual	void				GetColumnRowConstraints(
@@ -79,11 +82,11 @@ protected:
 	virtual	void				GetItemDimensions(BLayoutItem* item,
 									Dimensions* dimensions);
 
-private:	
+private:
 			class DummyLayoutItem;
 			class RowInfoArray;
 			struct ItemLayoutData;
-			
+
 			bool				_IsGridCellEmpty(int32 column, int32 row);
 			bool				_AreGridCellsEmpty(int32 column, int32 row,
 									int32 columnCount, int32 rowCount);
@@ -105,4 +108,5 @@ private:
 			int32				fMultiRowItems;
 };
 
+
 #endif	// _GRID_LAYOUT_H
diff --git a/src/kits/interface/GridLayout.cpp b/src/kits/interface/GridLayout.cpp
index 2d286d67c5..ef16c1567c 100644
--- a/src/kits/interface/GridLayout.cpp
+++ b/src/kits/interface/GridLayout.cpp
@@ -1,5 +1,5 @@
 /*
- * Copyright 2010, Haiku Inc.
+ * Copyright 2010-2011, Haiku Inc.
  * Copyright 2006, Ingo Weinhold <bonefish@cs.tu-berlin.de>.
  * All rights reserved. Distributed under the terms of the MIT License.
  */
@@ -372,6 +372,17 @@ BGridLayout::SetMaxRowHeight(int32 row, float height)
 }
 
 
+BLayoutItem*
+BGridLayout::ItemAt(int32 column, int32 row) const
+{
+	if (column < 0 || column >= CountColumns()
+		|| row < 0 || row >= CountRows())
+		return NULL;
+
+	return fGrid[column][row];
+}
+
+
 BLayoutItem*
 BGridLayout::AddView(BView* child)
 {