From 78371edac0335382a9dfd3d4c8d789766fcd8e91 Mon Sep 17 00:00:00 2001
From: Graeme Geldenhuys <graeme@mastermaths.co.za>
Date: Wed, 27 Jul 2011 15:00:08 +0200
Subject: BaseGrid and Home/End key handling and focused cells.

We never used to check if we are allowed to set the FFocusCol, we just
assumed we are allowed. Now we try each column while calling CanSelectCell()
in each iteration so we select the first available column.
---
 src/gui/fpg_basegrid.pas | 28 ++++++++++++++++++++--------
 1 file changed, 20 insertions(+), 8 deletions(-)

diff --git a/src/gui/fpg_basegrid.pas b/src/gui/fpg_basegrid.pas
index 1b45cfdf..63537cb0 100644
--- a/src/gui/fpg_basegrid.pas
+++ b/src/gui/fpg_basegrid.pas
@@ -827,6 +827,7 @@ procedure TfpgBaseGrid.HandleKeyPress(var keycode: word;
 var
   w: integer;
   r: integer;
+  c: integer;
 begin
   if consumed then
     exit;
@@ -932,11 +933,17 @@ begin
               RePaint;
             end;
           end
-          else if (FFocusCol <> 0) and CanSelectCell(FFocusRow, 0) then
+          else if (FFocusCol <> 0) then
           begin
-            FFocusCol := 0;
-            FollowFocus;
-            RePaint;
+            { find first selectable column }
+            for c := 0 to FFocusCol-1 do
+              if CanSelectCell(FFocusRow, c) then
+              begin
+                FFocusCol := c;
+                FollowFocus;
+                RePaint;
+                break;
+              end;
           end;
           consumed := True;
         end;
@@ -952,11 +959,16 @@ begin
               RePaint;
             end;
           end
-          else if (FFocusCol <> (ColumnCount-1)) and CanSelectCell(FFocusRow, ColumnCount-1) then
+          else if (FFocusCol <> (ColumnCount-1)) then
           begin
-            FFocusCol := ColumnCount-1;
-            FollowFocus;
-            RePaint;
+            for c := ColumnCount-1 downto FFocusCol+1 do
+              if CanSelectCell(FFocusRow, c) then
+              begin
+                FFocusCol := c;
+                FollowFocus;
+                RePaint;
+                break;
+              end;
           end;
           consumed := True;
         end;
-- 
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