RxFPC - current version in folder trunk

git-svn-id: https://svn.code.sf.net/p/lazarus-ccr/svn@2813 8e941d3f-bd1b-0410-a28a-d453659cc2b4

components/rx/trunk/rxhistory.pas

@@ -0,0 +1,191 @@
+unit RXHistory;
+
+{$mode objfpc}{$H+}
+
+interface
+
+uses
+  Classes, SysUtils, LResources, Forms, Controls, Graphics, Dialogs,
+  rxtoolbar;
+
+type
+  TToolbarButtonStyleCntrl = (tbrcNotChange, tbrcDropDown, tbrcDropDownExtra);
+
+  PNavigateRec = ^TNavigateRec;
+  TNavigateRec = packed record
+    Name:string;
+    Cond:string;
+    Next:PNavigateRec;
+  end;
+
+  TOnNavigateEvent = procedure(Sender:TObject; const EventName, EventMacro:string) of object;
+  { TRXHistory }
+
+  TRXHistory = class(TComponent)
+  private
+    FButtonNext: string;
+    FButtonPrior: string;
+    FButtonStyle: TToolbarButtonStyleCntrl;
+    FNextButton: TToolbarItem;
+    FNextButtonName: string;
+    FOnNavigateEvent: TOnNavigateEvent;
+    FPriorButton: TToolbarItem;
+    FPriorButtonName: string;
+    FToolPanel: TToolPanel;
+    function GetNextButtonName: string;
+    function GetPriorButtonName: string;
+    procedure SetButtonStyle(const AValue: TToolbarButtonStyleCntrl);
+    procedure SetNextButtonName(const AValue: string);
+    procedure SetPriorButtonName(const AValue: string);
+    procedure SetToolPanel(const AValue: TToolPanel);
+    function SetBtn(const ABtnName: string;var Button:TToolbarItem):boolean;
+  protected
+    procedure Loaded; override;
+  public
+    constructor Create(AOwner: TComponent); override;
+    property PriorButton:TToolbarItem read FPriorButton;
+    property NextButton:TToolbarItem read FNextButton;
+  published
+    property ToolPanel:TToolPanel read FToolPanel write SetToolPanel;
+    property PriorButtonName:string read GetPriorButtonName write SetPriorButtonName;
+    property NextButtonName:string read GetNextButtonName write SetNextButtonName;
+    property ButtonStyle:TToolbarButtonStyleCntrl read FButtonStyle write SetButtonStyle default tbrcNotChange;
+    property OnNavigateEvent:TOnNavigateEvent read FOnNavigateEvent write FOnNavigateEvent;
+  end;
+
+procedure Register;
+
+implementation
+uses PropEdits, Componenteditors, TypInfo;
+
+type
+
+  { TTRXHistoryBtnNameProperty }
+
+  TTRXHistoryBtnNameProperty = class(TStringPropertyEditor)
+  public
+    function  GetAttributes: TPropertyAttributes; override;
+    procedure GetValues(Proc: TGetStrProc); override;
+  end;
+
+{ TTRXHistoryBtnNameProperty }
+
+function TTRXHistoryBtnNameProperty.GetAttributes: TPropertyAttributes;
+begin
+  Result:=inherited GetAttributes;
+  Result:=Result + [paValueList, paSortList, paMultiSelect];
+end;
+
+procedure TTRXHistoryBtnNameProperty.GetValues(Proc: TGetStrProc);
+var
+  ToolPanel:TToolPanel;
+  i:integer;
+begin
+  ToolPanel := GetObjectProp(GetComponent(0), 'ToolPanel') as TToolPanel;
+  if Assigned(ToolPanel) then
+    for I := 0 to ToolPanel.Items.Count - 1 do
+    begin
+      if Assigned(ToolPanel.Items[i].Action) then
+       Proc(ToolPanel.Items[i].Action.Name);
+    end;
+end;
+
+procedure Register;
+begin
+  RegisterComponents('RX',[TRXHistory]);
+
+  RegisterPropertyEditor(TypeInfo(string), TRXHistory, 'PriorButtonName', TTRXHistoryBtnNameProperty);
+  RegisterPropertyEditor(TypeInfo(string), TRXHistory, 'NextButtonName', TTRXHistoryBtnNameProperty);
+end;
+
+{ TRXHistory }
+
+procedure TRXHistory.SetToolPanel(const AValue: TToolPanel);
+begin
+  if FToolPanel=AValue then exit;
+  FToolPanel:=AValue;
+end;
+
+function TRXHistory.SetBtn(const ABtnName: string;var Button:TToolbarItem):boolean;
+var
+  i:integer;
+begin
+  Result:=false;
+  if not Assigned(FToolPanel) then exit;
+  Button:=FToolPanel.Items.ByActionName[ABtnName];
+  Result:=Assigned(Button);
+  if Result then
+  begin
+    case FButtonStyle of
+      tbrcDropDown:Button.ButtonStyle:=tbrDropDown;
+      tbrcDropDownExtra:Button.ButtonStyle:=tbrDropDownExtra;
+    end;
+  end;
+end;
+
+procedure TRXHistory.Loaded;
+begin
+  inherited Loaded;
+  if not SetBtn(FNextButtonName, FNextButton) then
+    FNextButtonName:='';
+  if not SetBtn(FPriorButtonName, FPriorButton) then
+    FPriorButtonName:='';
+end;
+
+constructor TRXHistory.Create(AOwner: TComponent);
+begin
+  inherited Create(AOwner);
+  FButtonStyle:=tbrcNotChange;
+end;
+
+procedure TRXHistory.SetNextButtonName(const AValue: string);
+begin
+  if FNextButtonName=AValue then exit;
+  if csLoading in ComponentState then
+    FNextButtonName:=AValue
+  else
+  begin
+    if SetBtn(AValue, FNextButton) then
+      FNextButtonName:=AValue
+    else
+      FNextButtonName:='';
+  end;
+end;
+
+procedure TRXHistory.SetButtonStyle(const AValue: TToolbarButtonStyleCntrl);
+begin
+  if FButtonStyle=AValue then exit;
+  FButtonStyle:=AValue;
+end;
+
+function TRXHistory.GetNextButtonName: string;
+begin
+  if Assigned(NextButton) and Assigned(NextButton.Action) then
+    Result:=NextButton.Action.Name
+  else
+    Result:='';
+end;
+
+function TRXHistory.GetPriorButtonName: string;
+begin
+  if Assigned(PriorButton) and Assigned(PriorButton.Action) then
+    Result:=PriorButton.Action.Name
+  else
+    Result:='';
+end;
+
+procedure TRXHistory.SetPriorButtonName(const AValue: string);
+begin
+  if FPriorButtonName=AValue then exit;
+  if csLoading in ComponentState then
+    FPriorButtonName:=AValue
+  else
+  begin
+    if SetBtn(AValue, FPriorButton) then
+      FPriorButtonName:=AValue
+    else
+      FPriorButtonName:='';
+  end;
+end;
+
+end.