From 12b16151cc9f4f110e1039431adcef09e1a5e236 Mon Sep 17 00:00:00 2001
From: jujibo <jujibo@8e941d3f-bd1b-0410-a28a-d453659cc2b4>
Date: Sun, 9 Oct 2011 09:48:14 +0000
Subject: [PATCH] Manage properly mouse clicks inside and outside the grid for
 input values

git-svn-id: https://svn.code.sf.net/p/lazarus-ccr/svn@2067 8e941d3f-bd1b-0410-a28a-d453659cc2b4
---
 components/jujiboutils/src/jdbgridcontrol.pas | 21 +++++-
 components/jujiboutils/src/jdbgridutils.pas   | 73 ++++++++++++++++++-
 2 files changed, 89 insertions(+), 5 deletions(-)

diff --git a/components/jujiboutils/src/jdbgridcontrol.pas b/components/jujiboutils/src/jdbgridcontrol.pas
index 410a75564..c331373a2 100644
--- a/components/jujiboutils/src/jdbgridcontrol.pas
+++ b/components/jujiboutils/src/jdbgridcontrol.pas
@@ -23,7 +23,7 @@ interface
 
 uses
   Classes, SysUtils, LResources, Forms, Controls, Graphics, DB, Grids, DBGrids,
-  Dialogs, jdbgridutils;
+  Dialogs, LCLType, jdbgridutils;
 
 type
 
@@ -74,6 +74,9 @@ type
     function GetDefaultEditor(Column: integer): TWinControl; override;
     procedure UpdateData; override;
     property Columns: TJDBGridColumns read GetColumns write SetColumns;
+    procedure MouseDown(Button: TMouseButton; Shift: TShiftState; X, Y: integer);
+      override;
+    procedure KeyDown(var Key: word; Shift: TShiftState); override;
   public
     { Public declarations }
     constructor Create(TheOwner: TComponent); override;
@@ -193,6 +196,22 @@ begin
     inherited UpdateData;
 end;
 
+procedure TJDBGridControl.MouseDown(Button: TMouseButton; Shift: TShiftState;
+  X, Y: integer);
+begin
+  if integerDbGridControl.CanDefocus and doubleDbGridControl.CanDefocus and
+    dateTimeDbGridControl.CanDefocus and stringDbGridControl.CanDefocus and
+    dateDbGridControl.CanDefocus and timeDbGridControl.CanDefocus then
+    inherited MouseDown(Button, Shift, X, Y)
+  else
+    abort;
+end;
+
+procedure TJDBGridControl.KeyDown(var Key: word; Shift: TShiftState);
+begin
+  inherited KeyDown(Key, Shift);
+end;
+
 constructor TJDBGridControl.Create(TheOwner: TComponent);
 begin
   inherited Create(TheOwner);
diff --git a/components/jujiboutils/src/jdbgridutils.pas b/components/jujiboutils/src/jdbgridutils.pas
index 84de365ec..40be6a76d 100644
--- a/components/jujiboutils/src/jdbgridutils.pas
+++ b/components/jujiboutils/src/jdbgridutils.pas
@@ -46,6 +46,7 @@ type
     constructor Create;
     destructor Destroy; override;
     function Editor(aGrid: TDBGrid; aMaxLength: integer = 0): TStringCellEditor;
+    function CanDefocus: boolean;
   end;
 
   { TJDbGridDateTimeCtrl }
@@ -71,6 +72,7 @@ type
     constructor Create;
     destructor Destroy; override;
     function Editor(aGrid: TDBGrid): TStringCellEditor;
+    function CanDefocus: boolean;
   end;
 
   { TJDbGridTimeCtrl }
@@ -96,6 +98,7 @@ type
     constructor Create;
     destructor Destroy; override;
     function Editor(aGrid: TDBGrid): TStringCellEditor;
+    function CanDefocus: boolean;
   end;
 
   { TJDbGridDateCtrl }
@@ -121,6 +124,7 @@ type
     constructor Create;
     destructor Destroy; override;
     function Editor(aGrid: TDBGrid): TStringCellEditor;
+    function CanDefocus: boolean;
   end;
 
   { TJDbGridIntegerCtrl }
@@ -141,6 +145,7 @@ type
     constructor Create;
     destructor Destroy; override;
     function Editor(aGrid: TDBGrid): TStringCellEditor;
+    function CanDefocus: boolean;
   end;
 
   { TJDbGridDoubleCtrl }
@@ -166,6 +171,7 @@ type
     constructor Create;
     destructor Destroy; override;
     function Editor(aGrid: TDBGrid; aDecimals: integer = 2): TStringCellEditor;
+    function CanDefocus: boolean;
   end;
 
 
@@ -255,6 +261,11 @@ begin
   Result := CellEditor;
 end;
 
+function TJDbGridStringCtrl.CanDefocus: boolean;
+begin
+  Result := True;
+end;
+
 { TJDbGridDateTimeCtrl }
 
 function TJDbGridDateTimeCtrl.getFormat: string;
@@ -296,7 +307,8 @@ begin
       if (not updated) then
       begin
         theValue := StrToDateTime(CellEditor.Caption);
-        if FormatDateTime(DisplayFormat,  theValue) <> FormatDateTime(DisplayFormat, Field.AsDateTime) then
+        if FormatDateTime(DisplayFormat, theValue) <>
+          FormatDateTime(DisplayFormat, Field.AsDateTime) then
         begin
           Field.DataSet.DisableControls;
           Field.DataSet.Edit;
@@ -416,6 +428,18 @@ begin
   Result := CellEditor;
 end;
 
+function TJDbGridDateTimeCtrl.CanDefocus: boolean;
+begin
+  if CellEditor.Focused and (Length(CellEditor.Text) = 0) then
+    Result := True
+  else
+  if CellEditor.Focused and not
+    (IsValidDateTimeString(NormalizeDateTime(CellEditor.Caption, theValue))) then
+    Result := False
+  else
+    Result := True;
+end;
+
 { TJDbGridTimeCtrl }
 
 function TJDbGridTimeCtrl.getFormat: string;
@@ -457,7 +481,8 @@ begin
       if (not updated) then
       begin
         theValue := StrToTime(CellEditor.Caption);
-        if FormatDateTime(DisplayFormat,  theValue) <> FormatDateTime(DisplayFormat, Field.AsDateTime) then
+        if FormatDateTime(DisplayFormat, theValue) <>
+          FormatDateTime(DisplayFormat, Field.AsDateTime) then
         begin
           Field.DataSet.DisableControls;
           Field.DataSet.Edit;
@@ -575,6 +600,18 @@ begin
   Result := CellEditor;
 end;
 
+function TJDbGridTimeCtrl.CanDefocus: boolean;
+begin
+  if CellEditor.Focused and (Length(CellEditor.Text) = 0) then
+    Result := True
+  else
+  if CellEditor.Focused and not
+    (IsValidTimeString(NormalizeTime(CellEditor.Caption, theValue))) then
+    Result := False
+  else
+    Result := True;
+end;
+
 { TJDbGridDateCtrl }
 
 function TJDbGridDateCtrl.getFormat: string;
@@ -616,7 +653,8 @@ begin
       if (not updated) then
       begin
         theValue := StrToDate(CellEditor.Caption);
-        if FormatDateTime(DisplayFormat,  theValue) <> FormatDateTime(DisplayFormat, Field.AsDateTime) then
+        if FormatDateTime(DisplayFormat, theValue) <>
+          FormatDateTime(DisplayFormat, Field.AsDateTime) then
         begin
           Field.DataSet.DisableControls;
           Field.DataSet.Edit;
@@ -736,6 +774,18 @@ begin
   Result := CellEditor;
 end;
 
+function TJDbGridDateCtrl.CanDefocus: boolean;
+begin
+  if CellEditor.Focused and (Length(CellEditor.Text) = 0) then
+    Result := True
+  else
+  if CellEditor.Focused and not
+    (IsValidDateTimeString(NormalizeDateTime(CellEditor.Caption, theValue))) then
+    Result := False
+  else
+    Result := True;
+end;
+
 { TJDbGridDoubleCtrl }
 
 function TJDbGridDoubleCtrl.getDecimals: integer;
@@ -816,7 +866,6 @@ begin
       CellEditor.Text := ''
     else
       CellEditor.Text := FloatToStr(Field.AsFloat);
-    //CellEditor.Text := CurrToStr(redondear(Field.AsCurrency, fDecimals));
     updated := True;
     theGrid.SetFocus; // No perder el foco
   end
@@ -880,6 +929,14 @@ begin
   Result := CellEditor;
 end;
 
+function TJDbGridDoubleCtrl.CanDefocus: boolean;
+begin
+  if CellEditor.Focused then
+    Result := IsValidFloat(CellEditor.Text)
+  else
+    Result := True;
+end;
+
 { TJDbGridIntegerCtrl }
 
 procedure TJDbGridIntegerCtrl.myEditOnEnter(Sender: TObject);
@@ -993,5 +1050,13 @@ begin
   Result := CellEditor;
 end;
 
+function TJDbGridIntegerCtrl.CanDefocus: boolean;
+begin
+  if CellEditor.Focused then
+    Result := IsValidInteger(CellEditor.Text)
+  else
+    Result := True;
+end;
+
 end.