tvplanit: Report duplicate resource error in ResEditDlg before exiting dialog.

git-svn-id: https://svn.code.sf.net/p/lazarus-ccr/svn@8355 8e941d3f-bd1b-0410-a28a-d453659cc2b4

components/tvplanit/languages/demo.de.po

@@ -282,3 +282,4 @@ msgstr "Erledigte Aufgaben verbergen"
 #: tmainform.titlelbl.caption
 msgid "TitleLbl"
 msgstr ""
+

components/tvplanit/languages/demo.en.po

@@ -279,3 +279,4 @@ msgstr "Hide completed tasks"
 #: tmainform.titlelbl.caption
 msgid "TitleLbl"
 msgstr "TitleLbl"
+

components/tvplanit/source/vpbaseds.pas

@@ -310,6 +310,7 @@ type
     procedure UpdateGroupEvents; virtual;
 
     procedure DeleteResource(Res: TVpResource);
+    function FindResource(const AResourceName: String): TVpResource;
     
     property Connected : boolean read FConnected write SetConnected;
     property Loading : Boolean read FLoading write FLoading;
@@ -536,6 +537,11 @@ begin
   PurgeResource(Res);
 end;
   
+function TVpCustomDataStore.FindResource(const AResourceName: String): TVpResource;
+begin
+  Result := FResources.FindResourceByName(AResourceName);
+end;
+
 {=====}
 
 procedure TVpCustomDataStore.DeregisterAllWatchers;

components/tvplanit/source/vpreseditdlg.lfm

@@ -12,7 +12,7 @@ object ResEditForm: TResEditForm
   Constraints.MinWidth = 400
   OnCreate = FormCreate
   OnShow = FormShow
-  LCLVersion = '1.6.4.0'
+  LCLVersion = '2.3.0.0'
   object pnlBottom: TPanel
     Left = 0
     Height = 33
@@ -79,6 +79,7 @@ object ResEditForm: TResEditForm
         Width = 63
         BorderSpacing.Left = 8
         Caption = 'Description:'
+        Color = clDefault
         ParentColor = False
       end
       object lblNotes: TLabel
@@ -91,6 +92,7 @@ object ResEditForm: TResEditForm
         Width = 34
         BorderSpacing.Top = 8
         Caption = 'Notes:'
+        Color = clDefault
         ParentColor = False
       end
       object imgResources: TImage

components/tvplanit/source/vpreseditdlg.pas

@@ -41,7 +41,7 @@ uses
   SysUtils,
   {$IFDEF VERSION6} Variants, {$ENDIF}
   Classes, Graphics, Controls, Forms, Dialogs, StdCtrls, ExtCtrls, ComCtrls,
-  VpDlg, VpBase, VpData, VpConst;
+  VpDlg, VpBase, VpBaseDS, VpData, VpConst;
 
 type
   { forward declarations }
@@ -64,14 +64,17 @@ type
     procedure FormShow(Sender: TObject);
     procedure OKBtnClick(Sender: TObject);
   private
+    FDatastore: TVpCustomDatastore;
     procedure PositionControls;
     procedure SetControls;
+    function ValidData(out AControl: TWinControl; out AMsg: String): Boolean;
   public
     ReturnCode: TVpEditorReturnCode;
     ResourceChanged: Boolean;
     Resource: TVpResource;
     procedure PopulateSelf;
     procedure DePopulateSelf;
+    property Datastore: TVpCustomDatastore read FDatastore write FDatastore;
   end;
 
   TVpResourceEditDialog = class(TVpBaseDialog)
@@ -158,6 +161,7 @@ begin
   Application.CreateForm(TResEditForm, EditForm);
   try
     DoFormPlacement(EditForm);
+    EditForm.Datastore := Datastore;
     EditForm.Resource := reResource;
     EditForm.PopulateSelf;
     EditForm.ShowModal;
@@ -220,11 +224,35 @@ begin
 end;
 
 procedure TResEditForm.OKBtnClick(Sender: TObject);
+var
+  C: TWinControl;
+  msg: String;
 begin
+  if ResourceChanged and not ValidData(C, msg) then
+  begin
+    C.SetFocus;
+    MessageDlg(msg, mtError, [mbOK], 0);
+    exit;
+  end;
+  
   if ResourceChanged then
     ReturnCode := rtCommit;
   Close;
 end;
+
+function TResEditForm.ValidData(out AControl: TWinControl; out AMsg: String): Boolean;
+begin
+  Result := false;
+  
+  if FDatastore.FindResource(DescriptionEdit.Text) <> nil then
+  begin
+    AControl := DescriptionEdit;
+    AMsg := RSDuplicateResource;
+    exit;
+  end;
+
+  Result := true;
+end;
 {=====}
 
 procedure TResEditForm.FormCreate(Sender: TObject);