tvplanit: Add property GetCategoryName to TVpEvent. Improved handling of default colors of TVpColorInfo.

git-svn-id: https://svn.code.sf.net/p/lazarus-ccr/svn@8402 8e941d3f-bd1b-0410-a28a-d453659cc2b4

components/tvplanit/source/vpbase.pas

@@ -240,6 +240,7 @@ type
   private
     FOwner: TComponent;  // This is the DataStore.
     FCategoryIndex: Integer;
+    function IsStoredColor: Boolean;
   protected
     FBackgroundColor: TColor;
     FColor: TColor;
@@ -261,7 +262,7 @@ type
     property BackgroundColor: TColor
       read FBackgroundColor write SetBackgroundColor default clWindow;
     property Bitmap: TBitmap read FBitmap write SetBitmap;
-    property Color: TColor read FColor write SetColor;
+    property Color: TColor read FColor write SetColor stored IsStoredColor;
     property Description: string read FDescription write SetDescription;
     property ImageIndex: TImageIndex read FImageIndex write SetImageIndex default -1;
     property CategoryIndex: Integer read FCategoryIndex;
@@ -276,6 +277,7 @@ type
   public
     constructor Create(AOwner: TComponent);
     destructor Destroy; override;
+    function GetBackgroundColor(AIndex: Integer): TColor;
     function GetColor(AIndex: Integer): TColor;
     function GetName(AIndex: Integer):string;
     function GetCategory(AIndex: Integer): TVpCategoryInfo;
@@ -752,10 +754,6 @@ end;
 { TVpCategoryColorMap }
 
 constructor TVpCategoryColorMap.Create(AOwner: TComponent);
-const
-  CAT_COLORS: Array[0..9] of TColor = (
-    clNavy, clRed, clYellow, clLime, clPurple, clTeal, clFuchsia, clOlive, clAqua, clMaroon
-  );
 var
   i: Integer;
 begin
@@ -765,7 +763,7 @@ begin
   begin
     FCat[i] := TVpCategoryInfo.Create(FOwner);
     FCat[i].FIndex := i;
-    FCat[i].Color := CAT_COLORS[i];
+    FCat[i].Color := CATEGORY_COLORS[i];
     FCat[i].Description := Format(RSCategoryDesc, [i]);
   end;
 end;
@@ -812,6 +810,14 @@ begin
   Result := -1;
 end;
 
+function TVpCategoryColorMap.GetBackgroundColor(AIndex: Integer): TColor;
+begin
+  if (AIndex >= Low(FCat)) and (AIndex <= High(FCat)) then
+    Result := FCat[AIndex].BackgroundColor
+  else
+    Result := clWindow;
+end;
+
 function TVpCategoryColorMap.GetColor(AIndex: Integer): TColor;
 begin
   if (AIndex >= Low(FCat)) and (AIndex <= High(FCat)) then
@@ -848,6 +854,7 @@ begin
   FOwner := AOwner;
   FBitmap := TBitmap.Create;
   FBackgroundColor := clWindow;
+  FColor := clNavy;
   FImageIndex := -1;
 end;
 
@@ -857,6 +864,11 @@ begin
   inherited Destroy;
 end;
 
+function TVpCategoryInfo.IsStoredColor: Boolean;
+begin
+  Result := FColor <> CATEGORY_COLORS[FIndex];
+end;
+
 procedure TVpCategoryInfo.SetBackgroundColor(const v: TColor);
 begin
   if v <> FBackgroundColor then

components/tvplanit/source/vpconst.pas

@@ -53,6 +53,10 @@ const
 
   BorderStyles: array[TBorderStyle] of LongInt = (0, WS_BORDER);
 
+  CATEGORY_COLORS: Array[0..9] of TColor = (
+    clNavy, clRed, clYellow, clLime, clPurple, clTeal, clFuchsia, clOlive, clAqua, clMaroon
+  );
+
   ScrollBarStyles: array[TScrollStyle] of LongInt = (
     0, WS_HSCROLL, WS_VSCROLL, WS_HSCROLL or WS_VSCROLL{$IFDEF LCL},0,0,0{$ENDIF}
   );

components/tvplanit/source/vpdata.pas

@@ -316,6 +316,7 @@ type
     function CreateICalEvent(ACalendar: TVpICalendar): TVpICalEvent;
     class procedure GetAlarmParams(ATrigger: TDateTime; out AdvTime: Integer;
       out AdvTimeUnits: TVpAlarmAdvType);
+    function GetCategoryName: String;
     function GetResource: TVpResource;
     function IsOverlayed: Boolean;
     procedure LoadFromICalendar(AEntry: TVpICalEvent);
@@ -1433,6 +1434,24 @@ begin
   end;
 end;
 
+{ Returns the Description of the categoy associated with the event. }
+function TVpEvent.GetCategoryName: String;
+var
+  res: TVpResource;
+  store: TVpCustomDatastore;
+begin
+  Result := '';
+  if (FCategory < 0) or (FCategory > 9) then
+    exit;
+  res := GetResource;
+  if res = nil then
+    exit;
+  store := TVpCustomDatastore(res.Owner.Owner);
+  if store = nil then
+    exit;
+  Result := store.CategoryColorMap.GetCategoryName(FCategory);
+end;
+
 { Returns the resource to which the event belongs. }
 function TVpEvent.GetResource: TVpResource;
 begin