Стартовый пул
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{ RxViewsPanel unit
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Copyright (C) 2005-2017 Lagunov Aleksey alexs75@yandex.ru and Lazarus team
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original conception from rx library for Delphi (c)
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This library is free software; you can redistribute it and/or modify it
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under the terms of the GNU Library General Public License as published by
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the Free Software Foundation; either version 2 of the License, or (at your
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option) any later version with the following modification:
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As a special exception, the copyright holders of this library give you
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permission to link this library with independent modules to produce an
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executable, regardless of the license terms of these independent modules,and
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to copy and distribute the resulting executable under terms of your choice,
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provided that you also meet, for each linked independent module, the terms
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and conditions of the license of that module. An independent module is a
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module which is not derived from or based on this library. If you modify
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this library, you may extend this exception to your version of the library,
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but you are not obligated to do so. If you do not wish to do so, delete this
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exception statement from your version.
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This program is distributed in the hope that it will be useful, but WITHOUT
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public License
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for more details.
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You should have received a copy of the GNU Library General Public License
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along with this library; if not, write to the Free Software Foundation,
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Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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}
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unit RxViewsPanel;
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{$I rx.inc}
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interface
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uses
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Classes, SysUtils, LResources, Forms, Controls, Graphics, Dialogs, ExtCtrls,
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Buttons, StdCtrls, LCLType;
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type
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TRxViewsPanel = class;
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TRxViewsPanelItem = class;
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TSelectViewEvent = procedure (Sender: TObject; ItemIndex:integer; const Item:TRxViewsPanelItem) of object;
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{ TRxViewsPanelItem }
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TRxViewsPanelItem = class(TCollectionItem)
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private
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FButton: TSpeedButton;
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FImageIndex: integer;
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FLabel:TLabel;
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function GetAction: TBasicAction;
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function GetCaption: string;
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function GetEnabled: Boolean;
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function GetHint: TTranslateString;
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function GetImageIndex: integer;
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function GetTag: Longint;
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function GetVisible: boolean;
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procedure SetAction(const AValue: TBasicAction);
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procedure SetCaption(const AValue: string);
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procedure SetEnabled(const AValue: Boolean);
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procedure SetHint(const AValue: TTranslateString);
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procedure SetImageIndex(const AValue: integer);
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procedure SetTag(const AValue: Longint);
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procedure SetVisible(const AValue: boolean);
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procedure UpdatePosition;
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procedure UpdateImage;
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procedure DoViewButtonClick(Sender:TObject);
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protected
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function GetDisplayName: string; override;
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public
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constructor Create(ACollection: TCollection); override;
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destructor Destroy; override;
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published
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property Action:TBasicAction read GetAction write SetAction;
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property Visible:boolean read GetVisible write SetVisible;
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property Caption:string read GetCaption Write SetCaption;
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property Tag: Longint read GetTag write SetTag default 0;
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property ImageIndex:integer read GetImageIndex write SetImageIndex;
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property Hint:TTranslateString read GetHint write SetHint;
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property Enabled: Boolean read GetEnabled write SetEnabled default True;
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end;
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{ TRxViewsPanelItems }
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TRxViewsPanelItems = class(TCollection)
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private
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FRxViewsPanel:TRxViewsPanel;
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function GetPanelItem(Index: Integer): TRxViewsPanelItem;
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procedure SetPanelItem(Index: Integer; const AValue: TRxViewsPanelItem);
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protected
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procedure Update(Item: TCollectionItem);override;
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public
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constructor Create(ARxViewsPanel: TRxViewsPanel);
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property Items[Index: Integer]: TRxViewsPanelItem read GetPanelItem write SetPanelItem; default;
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procedure UpdateImages;
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end;
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{ TRxViewsPanel }
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TRxViewsPanel = class(TCustomPanel)
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private
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FButtonHeght: integer;
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FImageList: TImageList;
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FItemIndex: integer;
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FItems:TRxViewsPanelItems;
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FOnSelectViewEvent: TSelectViewEvent;
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function GetItems: TRxViewsPanelItems;
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procedure SetButtonHeght(const AValue: integer);
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procedure SetImageList(const AValue: TImageList);
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procedure SetItemIndex(const AValue: integer);
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procedure SetItems(const AValue: TRxViewsPanelItems);
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procedure InternalSelectView(Item:TRxViewsPanelItem);
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protected
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procedure Loaded; override;
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public
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constructor Create(AOwner: TComponent); override;
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destructor Destroy; override;
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published
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property Align;
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property Anchors;
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property ButtonHeght:integer read FButtonHeght write SetButtonHeght;
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property Color default clGrayText;
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property Items:TRxViewsPanelItems read GetItems write SetItems;
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property ImageList:TImageList read FImageList write SetImageList;
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property OnSelectViewEvent:TSelectViewEvent read FOnSelectViewEvent write FOnSelectViewEvent;
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property ItemIndex:integer read FItemIndex write SetItemIndex;
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property Alignment;
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property AutoSize;
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property BorderSpacing;
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property BevelInner;
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property BevelOuter;
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property BevelWidth;
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property BidiMode;
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property BorderWidth;
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property BorderStyle;
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property Caption;
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property ChildSizing;
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property ClientHeight;
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property ClientWidth;
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property Constraints;
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property DockSite;
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property DragCursor;
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property DragKind;
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property DragMode;
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property Enabled;
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property Font;
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property FullRepaint;
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property ParentBidiMode;
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property ParentColor;
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property ParentFont;
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property ParentShowHint;
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property PopupMenu;
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property ShowHint;
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property TabOrder;
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property TabStop;
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property UseDockManager default True;
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property Visible;
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property OnClick;
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property OnContextPopup;
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property OnDockDrop;
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property OnDockOver;
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property OnDblClick;
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property OnDragDrop;
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property OnDragOver;
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property OnEndDock;
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property OnEndDrag;
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property OnEnter;
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property OnExit;
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property OnGetSiteInfo;
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property OnGetDockCaption;
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property OnMouseDown;
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property OnMouseEnter;
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property OnMouseLeave;
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property OnMouseMove;
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property OnMouseUp;
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property OnMouseWheel;
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property OnMouseWheelDown;
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property OnMouseWheelUp;
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property OnResize;
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property OnStartDock;
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property OnStartDrag;
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property OnUnDock;
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end;
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implementation
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{ TRxViewsPanel }
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function TRxViewsPanel.GetItems: TRxViewsPanelItems;
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begin
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Result:=FItems;
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end;
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procedure TRxViewsPanel.SetButtonHeght(const AValue: integer);
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var
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I:integer;
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begin
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if FButtonHeght=AValue then exit;
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FButtonHeght:=AValue;
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for i:=0 to FItems.Count - 1 do
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Items[i].FButton.Height:=AValue;
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end;
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procedure TRxViewsPanel.SetImageList(const AValue: TImageList);
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begin
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if FImageList=AValue then exit;
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FImageList:=AValue;
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FItems.UpdateImages;
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end;
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procedure TRxViewsPanel.SetItemIndex(const AValue: integer);
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begin
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if FItemIndex=AValue then exit;
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if (AValue < 0) or (AValue > FItems.Count - 1) then exit;
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FItemIndex:=AValue;
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Items[AValue].FButton.Click;
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Items[AValue].FButton.Down:=true;
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end;
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procedure TRxViewsPanel.SetItems(const AValue: TRxViewsPanelItems);
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begin
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FItems.Assign(AValue);
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end;
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procedure TRxViewsPanel.InternalSelectView(Item: TRxViewsPanelItem);
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begin
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FItemIndex:=Item.Index;
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if Assigned(FOnSelectViewEvent) then
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FOnSelectViewEvent(Self, Item.Index, Item);
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end;
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procedure TRxViewsPanel.Loaded;
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begin
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inherited Loaded;
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FItems.Update(nil);
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FItems.UpdateImages;
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if (FItems.Count>0) and (FItemIndex>-1) and (FItemIndex < FItems.Count) then
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FItems[FItemIndex].FButton.Down:=true;
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end;
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constructor TRxViewsPanel.Create(AOwner: TComponent);
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begin
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inherited Create(AOwner);
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BevelOuter:=bvLowered;
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Caption:='';
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if Assigned(AOwner) then
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Align:=alLeft;
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Color:=clGrayText;
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FItems:=TRxViewsPanelItems.Create(Self);
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ControlStyle:=ControlStyle - [csSetCaption, csAcceptsControls];
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FButtonHeght:=50;
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end;
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destructor TRxViewsPanel.Destroy;
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begin
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FreeAndNil(FItems);
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inherited Destroy;
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end;
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{ TRxViewsPanelItem }
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function TRxViewsPanelItem.GetAction: TBasicAction;
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begin
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Result:=FButton.Action;
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end;
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function TRxViewsPanelItem.GetCaption: string;
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begin
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Result:=FLabel.Caption;
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end;
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function TRxViewsPanelItem.GetEnabled: Boolean;
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begin
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Result:=FButton.Enabled;
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end;
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function TRxViewsPanelItem.GetHint: TTranslateString;
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begin
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Result:=FButton.Hint;
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end;
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function TRxViewsPanelItem.GetImageIndex: integer;
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begin
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{ if Assigned(FButton.Action) then
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Result:=FButton.Action.;}
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Result:=FImageIndex;
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// FButton.Glyph.;
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end;
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function TRxViewsPanelItem.GetTag: Longint;
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begin
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Result:=FButton.Tag;
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end;
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function TRxViewsPanelItem.GetVisible: boolean;
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begin
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Result:=FButton.Visible;
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end;
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procedure TRxViewsPanelItem.SetAction(const AValue: TBasicAction);
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begin
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FButton.Action:=AValue;
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end;
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procedure TRxViewsPanelItem.SetCaption(const AValue: string);
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begin
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FLabel.Caption:=AValue;
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end;
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procedure TRxViewsPanelItem.SetEnabled(const AValue: Boolean);
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begin
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FButton.Enabled:=AValue;
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FLabel.Enabled:=AValue;
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end;
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procedure TRxViewsPanelItem.SetHint(const AValue: TTranslateString);
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begin
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FButton.Hint:=AValue;
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end;
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procedure TRxViewsPanelItem.SetImageIndex(const AValue: integer);
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begin
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if FImageIndex=AValue then exit;
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FImageIndex:=AValue;
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UpdateImage;
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end;
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procedure TRxViewsPanelItem.SetTag(const AValue: Longint);
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begin
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FButton.Tag:=AValue;
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end;
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procedure TRxViewsPanelItem.SetVisible(const AValue: boolean);
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begin
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FButton.Visible:=AValue;
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FLabel.Visible:=AValue;
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end;
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procedure TRxViewsPanelItem.UpdatePosition;
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var
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PP:TRxViewsPanelItem;
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begin
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if Index <> 0 then
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begin
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PP:=TRxViewsPanelItems(Collection).GetPanelItem(Index - 1);
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if Assigned(PP.FLabel) then
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begin
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FButton.Top:=PP.FLabel.Top + PP.FLabel.Height;
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end;
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end;
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FLabel.Top:=FButton.Top + FButton.Height;
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end;
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procedure TRxViewsPanelItem.UpdateImage;
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var
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VP:TRxViewsPanel;
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begin
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VP:=TRxViewsPanelItems(Collection).FRxViewsPanel;
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if Assigned(VP.FImageList) then
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VP.FImageList.GetBitmap(FImageIndex, FButton.Glyph);
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end;
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procedure TRxViewsPanelItem.DoViewButtonClick(Sender: TObject);
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begin
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TRxViewsPanelItems(Collection).FRxViewsPanel.InternalSelectView(Self);
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end;
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function TRxViewsPanelItem.GetDisplayName: string;
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begin
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if FLabel.Caption<> '' then
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Result:=FLabel.Caption
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else
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Result:=inherited GetDisplayName;
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end;
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constructor TRxViewsPanelItem.Create(ACollection: TCollection);
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var
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VP:TRxViewsPanel;
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begin
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inherited Create(ACollection);
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VP:=TRxViewsPanelItems(ACollection).FRxViewsPanel;
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FImageIndex:=-1;
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FButton:=TSpeedButton.Create(VP);
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// FButton.Align:=alTop;
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FButton.ShowCaption:=false;
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FButton.Transparent:=true;
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FButton.GroupIndex:=1;
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FButton.Height:=VP.FButtonHeght;
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FButton.Parent:=VP;
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FLabel:=TLabel.Create(VP);
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// FLabel.Align:=alTop;
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FLabel.WordWrap:=true;
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FLabel.Alignment:=taCenter;
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FLabel.AutoSize:=true;
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FLabel.Parent:=VP;
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FButton.BorderSpacing.Around:=6;
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FLabel.BorderSpacing.Around:=6;
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FButton.AnchorSide[akLeft].Control:=VP;
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FButton.AnchorSide[akRight].Control:=VP;
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FButton.AnchorSide[akRight].Side:=asrBottom;
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FButton.Anchors:=[akTop, akLeft, akRight];
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FButton.OnClick:=@DoViewButtonClick;
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FLabel.AnchorSide[akTop].Control:=FButton;
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FLabel.AnchorSide[akLeft].Control:=VP;
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FLabel.AnchorSide[akRight].Control:=VP;
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FLabel.AnchorSide[akRight].Side:=asrBottom;
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FLabel.Anchors:=[akTop, akLeft, akRight];
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FLabel.Top:=FButton.Top + FButton.Height;
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UpdatePosition;
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end;
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destructor TRxViewsPanelItem.Destroy;
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begin
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FreeAndNil(FButton);
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FreeAndNil(FLabel);
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inherited Destroy;
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end;
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{ TRxViewsPanelItems }
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function TRxViewsPanelItems.GetPanelItem(Index: Integer): TRxViewsPanelItem;
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begin
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result := TRxViewsPanelItem( inherited Items[Index] );
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end;
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procedure TRxViewsPanelItems.SetPanelItem(Index: Integer;
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const AValue: TRxViewsPanelItem);
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begin
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Items[Index].Assign( AValue );
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end;
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procedure TRxViewsPanelItems.Update(Item: TCollectionItem);
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var
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i:integer;
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P, P1:TRxViewsPanelItem;
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begin
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inherited Update(Item);
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if not Assigned(Item) then
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begin
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for i:=0 to Count - 1 do
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begin
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P:=GetPanelItem(I);
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if Assigned(P.FButton) and Assigned(P.FLabel) then
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begin
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if i=0 then
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begin
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P.FButton.AnchorSide[akTop].Control:=FRxViewsPanel;
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P.FButton.AnchorSide[akTop].Side:=asrTop;
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P.FLabel.AnchorSide[akTop].Control:=P.FButton;
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P.FLabel.AnchorSide[akTop].Side:=asrBottom;
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end
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else
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begin
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P1:=GetPanelItem(I-1);
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if Assigned(P1.FButton) and Assigned(P1.FLabel) then
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begin
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P.FButton.AnchorSide[akTop].Control:=P1.FLabel;
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P.FButton.AnchorSide[akTop].Side:=asrBottom;
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P.FLabel.AnchorSide[akTop].Control:=P.FButton;
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P.FLabel.AnchorSide[akTop].Side:=asrBottom;
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end;
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end;
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P.FButton.AnchorSide[akLeft].Control:=FRxViewsPanel;
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P.FButton.AnchorSide[akRight].Control:=FRxViewsPanel;
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P.FButton.AnchorSide[akRight].Side:=asrBottom;
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P.FLabel.AnchorSide[akTop].Control:=P.FButton;
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P.FLabel.AnchorSide[akLeft].Control:=FRxViewsPanel;
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P.FLabel.AnchorSide[akRight].Control:=FRxViewsPanel;
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P.FLabel.AnchorSide[akRight].Side:=asrBottom;
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end;
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end;
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end;
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end;
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constructor TRxViewsPanelItems.Create(ARxViewsPanel: TRxViewsPanel);
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begin
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inherited Create(TRxViewsPanelItem);
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FRxViewsPanel:=ARxViewsPanel;
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end;
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procedure TRxViewsPanelItems.UpdateImages;
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var
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i:integer;
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begin
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for I:=0 to Count - 1 do
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Items[i].UpdateImage;
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end;
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end.
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