dsgnintf.pas

SQL自动生成

{*******************************************************}
{                                                       }
{       Borland Delphi Visual Component Library         }
{                                                       }
{       Copyright (c) 1995,99 Inprise Corporation       }
{                                                       }
{*******************************************************}

unit DsgnIntf;

interface

{$N+,S-,R-}

uses
  Windows, Activex, SysUtils, Classes, Graphics, Controls, Forms, Contnrs, IniFiles,
  TypInfo, Masks, Menus;

type

  TEditAction = (eaUndo, eaRedo, eaCut, eaCopy, eaPaste, eaDelete, eaSelectAll,
    eaPrint, eaBringToFront, eaSendToBack, eaAlignToGrid, eaFlipChildrenAll,
    eaFlipChildrenSelected);

  TEditState = set of (esCanUndo, esCanRedo, esCanCut, esCanCopy, esCanPaste,
    esCanDelete, esCanZOrder, esCanAlignGrid, esCanEditOle, esCanTabOrder,
	esCanCreationOrder, esCanPrint, esCanSelectAll);

  IEventInfos = interface
    ['{11667FF0-7590-11D1-9FBC-0020AF3D82DA}']
    function GetCount: Integer;
    function GetEventValue(Index: Integer): string;
    function GetEventName(Index: Integer): string;
    procedure ClearEvent(Index: Integer);
    property Count: Integer read GetCount;
  end;

  IPersistent = interface
    ['{82330133-65D1-11D1-9FBB-0020AF3D82DA}'] {Java}
    procedure DestroyObject;
    function Equals(const Other: IPersistent): Boolean;
    function GetClassname: string;
    function GetEventInfos: IEventInfos;
    function GetNamePath: string;
    function GetOwner: IPersistent;
    function InheritsFrom(const Classname: string): Boolean;
    function IsComponent: Boolean;  // object is stream createable
    function IsControl: Boolean;
    function IsWinControl: Boolean;
    property Classname: string read GetClassname;
    property Owner: IPersistent read GetOwner;
    property NamePath: string read GetNamePath;
//    property PersistentProps[Index: Integer]: IPersistent
//    property PersistentPropCount: Integer;
    property EventInfos: IEventInfos read GetEventInfos;
  end;

  IComponent = interface(IPersistent)
    ['{B2F6D681-5098-11D1-9FB5-0020AF3D82DA}'] {Java}
    function FindComponent(const Name: string): IComponent;
    function GetComponentCount: Integer;
    function GetComponents(Index: Integer): IComponent;
    function GetComponentState: TComponentState;
    function GetComponentStyle: TComponentStyle;
    function GetDesignInfo: TSmallPoint;
    function GetDesignOffset: TPoint;
    function GetDesignSize: TPoint;
    function GetName: string;
    function GetOwner: IComponent;
    function GetParent: IComponent;
    procedure SetDesignInfo(const Point: TSmallPoint);
    procedure SetDesignOffset(const Point: TPoint);
    procedure SetDesignSize(const Point: TPoint);
    procedure SetName(const Value: string);
    property ComponentCount: Integer read GetComponentCount;
    property Components[Index: Integer]: IComponent read GetComponents;
    property ComponentState: TComponentState read GetComponentState;
    property ComponentStyle: TComponentStyle read GetComponentStyle;
    property DesignInfo: TSmallPoint read GetDesignInfo write SetDesignInfo;
    property DesignOffset: TPoint read GetDesignOffset write SetDesignOffset;
    property DesignSize: TPoint read GetDesignSize write SetDesignSize;
    property Name: string read GetName write SetName;
    property Owner: IComponent read GetOwner;
    property Parent: IComponent read GetParent;
  end;

  IImplementation = interface
    ['{F9D448F2-50BC-11D1-9FB5-0020AF3D82DA}']
    function GetInstance: TObject;
  end;

  function MakeIPersistent(Instance: TPersistent): IPersistent;
  function ExtractPersistent(const Intf: IUnknown): TPersistent;
  function TryExtractPersistent(const Intf: IUnknown): TPersistent;

  function MakeIComponent(Instance: TComponent): IComponent;
  function ExtractComponent(const Intf: IUnknown): TComponent;
  function TryExtractComponent(const Intf: IUnknown): TComponent;

var
  MakeIPersistentProc: function (Instance: TPersistent): IPersistent = nil;
  MakeIComponentProc: function (Instance: TComponent): IComponent = nil;

type

{ IDesignerSelections  }
{   Used to transport the selected objects list in and out of the form designer.
    Replaces TDesignerSelectionList in form designer interface.  }

  IDesignerSelections = interface
    ['{82330134-65D1-11D1-9FBB-0020AF3D82DA}'] {Java}
    function Add(const Item: IPersistent): Integer;
    function Equals(const List: IDesignerSelections): Boolean;
    function Get(Index: Integer): IPersistent;
    function GetCount: Integer;
    property Count: Integer read GetCount;
    property Items[Index: Integer]: IPersistent read Get; default;
  end;

function CreateSelectionList: IDesignerSelections;

type

  TDesignerSelectionList = class;

  IComponentList = interface
    ['{8ED8AD16-A241-11D1-AA94-00C04FB17A72}']
    function GetComponentList: TDesignerSelectionList;
  end;

{ TDesignerSelectionList }
{   Used to transport VCL component selections between property editors }

  TDesignerSelectionList = class(TInterfacedObject, IDesignerSelections,
    IComponentList)
  private
    FList: TList;
    { IDesignSelections }
    function IDesignerSelections.Add = Intf_Add;
    function Intf_Add(const Item: IPersistent): Integer;
    function IDesignerSelections.Equals = Intf_Equals;
    function Intf_Equals(const List: IDesignerSelections): Boolean;
    function IDesignerSelections.Get = Intf_Get;
    function Intf_Get(Index: Integer): IPersistent;
    function Get(Index: Integer): TPersistent;
    function GetCount: Integer;
    { IComponentList }
    function GetComponentList: TDesignerSelectionList;
  public
    constructor Create;
    destructor Destroy; override;
    function Add(Item: TPersistent): Integer;
    function Equals(List: TDesignerSelectionList): Boolean;
    property Count: Integer read GetCount;
    property Items[Index: Integer]: TPersistent read Get; default;
  end;

{ IFormDesigner
    BuildLocalMenu - Constructs and returns the popup menu for the currently
    selected component(s).  Base is the popup menu that will receive additional
    menu items.  If Base is nil, a default popup menu is constructed containing
    the default designer menu items, like "Align to Grid".  The menu object
    returned by this function is owned by the designer and will be destroyed
    the next time BuildLocalMenu is called (the next time a Popup menu is
    invoked on the designer).  If you pass in a Base menu, you don't own it
    anymore.  It will be destroyed later.
}
type
  TLocalMenuFilter = (lmModule, lmComponent, lmDesigner);
  TLocalMenuFilters = set of TLocalMenuFilter;

const
  cNoLocalMenus = [lmModule, lmComponent, lmDesigner];
  cAllLocalMenus = [];
  cLocalMenusIf: array [boolean] of TLocalMenuFilters =
    (cNoLocalMenus, cAllLocalMenus);

type
  IFormDesigner = interface(IDesigner)
    ['{ADDD444D-1B03-11D3-A8F8-00C04FA32F53}']
    function CreateMethod(const Name: string; TypeData: PTypeData): TMethod;
    function GetMethodName(const Method: TMethod): string;
    procedure GetMethods(TypeData: PTypeData; Proc: TGetStrProc);
    function GetPrivateDirectory: string;
    procedure GetSelections(const List: IDesignerSelections);
    function MethodExists(const Name: string): Boolean;
    procedure RenameMethod(const CurName, NewName: string);
    procedure SelectComponent(Instance: TPersistent);
    procedure SetSelections(const List: IDesignerSelections);
    procedure ShowMethod(const Name: string);
    procedure GetComponentNames(TypeData: PTypeData; Proc: TGetStrProc);
    function GetComponent(const Name: string): TComponent;
    function GetComponentName(Component: TComponent): string;
    function GetObject(const Name: string): TPersistent;
    function GetObjectName(Instance: TPersistent): string;
    procedure GetObjectNames(TypeData: PTypeData; Proc: TGetStrProc);
    function MethodFromAncestor(const Method: TMethod): Boolean;
    function CreateComponent(ComponentClass: TComponentClass; Parent: TComponent;
      Left, Top, Width, Height: Integer): TComponent;
    function IsComponentLinkable(Component: TComponent): Boolean;
    procedure MakeComponentLinkable(Component: TComponent);
    procedure Revert(Instance: TPersistent; PropInfo: PPropInfo);
    function GetIsDormant: Boolean;
    function HasInterface: Boolean;
    function HasInterfaceMember(const Name: string): Boolean;
    procedure AddToInterface(InvKind: Integer; const Name: string; VT: Word;
      const TypeInfo: string);
    procedure GetProjectModules(Proc: TGetModuleProc);
    function GetAncestorDesigner: IFormDesigner;
    function IsSourceReadOnly: Boolean;
    function GetContainerWindow: TWinControl;
    procedure SetContainerWindow(const NewContainer: TWinControl);
    function GetScrollRanges(const ScrollPosition: TPoint): TPoint;
    procedure Edit(const Component: IComponent);
    function BuildLocalMenu(Base: TPopupMenu; Filter: TLocalMenuFilters): TPopupMenu;
    procedure ChainCall(const MethodName, InstanceName, InstanceMethod: string;
      TypeData: PTypeData);
    procedure CopySelection;
    procedure CutSelection;
    function CanPaste: Boolean;
    procedure PasteSelection;
    procedure DeleteSelection;
    procedure ClearSelection;
    procedure NoSelection;
    procedure ModuleFileNames(var ImplFileName, IntfFileName, FormFileName: string);
    function GetRootClassName: string;
    property IsDormant: Boolean read GetIsDormant;
    property AncestorDesigner: IFormDesigner read GetAncestorDesigner;
    property ContainerWindow: TWinControl read GetContainerWindow write SetContainerWindow;
  end;

  IDesignNotification = interface
    ['{3250122F-D336-11D2-B725-00C04FA35D12}']
    procedure ItemDeleted(const AItem: IPersistent);
    procedure ItemInserted(const AItem: IPersistent);
    procedure ItemsModified(const ADesigner: IUnknown);
    procedure SelectionChanged(const ASelection: IDesignerSelections);
    procedure DesignerInitialized(const ADesigner: IUnknown);
    procedure DesignerClosed(const ADesigner: IUnknown);
  end;

{ IDesignerPopulateMenu
    Allows a design surface an opportunity to add context-sensitive menu items
    to the designer's popup menu.  This is in addition to the component editor
    verbs and the custom module verbs. }

  IDesignerPopulateMenu = interface
    ['{66C7D913-EC70-11D2-AAD1-00C04FB16FBC}']
    procedure PopulateMenu(const APopupMenu: TPopupMenu);
  end;

{ TPropertyEditor
  Edits a property of a component, or list of components, selected into the
  Object Inspector.  The property editor is created based on the type of the
  property being edited as determined by the types registered by
  RegisterPropertyEditor.  The Object Inspector uses a TPropertyEditor
  for all modification to a property. GetName and GetValue are called to display
  the name and value of the property.  SetValue is called whenever the user
  requests to change the value.  Edit is called when the user double-clicks the
  property in the Object Inspector. GetValues is called when the drop-down
  list of a property is displayed.  GetProperties is called when the property
  is expanded to show sub-properties.  AllEqual is called to decide whether or
  not to display the value of the property when more than one component is
  selected.

  The following are methods that can be overridden to change the behavior of
  the property editor:

    Activate
      Called whenever the property becomes selected in the object inspector.
      This is potentially useful to allow certain property attributes to
      to only be determined whenever the property is selected in the object
      inspector. Only paSubProperties and paMultiSelect, returned from
      GetAttributes, need to be accurate before this method is called.
    AllEqual
      Called whenever there is more than one component selected.  If this
      method returns true, GetValue is called, otherwise blank is displayed
      in the Object Inspector.  This is called only when GetAttributes
      returns paMultiSelect.
    AutoFill
      Called to determine whether the values returned by GetValues can be
      selected incrementally in the Object Inspector.  This is called only when
      GetAttributes returns paValueList.
    Edit
      Called when the '...' button is pressed or the property is double-clicked.
      This can, for example, bring up a dialog to allow the editing the
      component in some more meaningful fashion than by text (e.g. the Font
      property).
    GetAttributes
      Returns the information for use in the Object Inspector to be able to
      show the appropriate tools.  GetAttributes returns a set of type
      TPropertyAttributes:
        paValueList:     The property editor can return an enumerated list of
                         values for the property.  If GetValues calls Proc
                         with values then this attribute should be set.  This
                         will cause the drop-down button to appear to the right
                         of the property in the Object Inspector.
        paSortList:      Object Inspector to sort the list returned by
                         GetValues.
        paSubProperties: The property editor has sub-properties that will be
                         displayed indented and below the current property in
                         standard outline format. If GetProperties will
                         generate property objects then this attribute should
                         be set.
        paDialog:        Indicates that the Edit method will bring up a
                         dialog.  This will cause the '...' button to be
                         displayed to the right of the property in the Object
                         Inspector.
        paMultiSelect:   Allows the property to be displayed when more than
                         one component is selected.  Some properties are not
                         appropriate for multi-selection (e.g. the Name
                         property).
        paAutoUpdate:    Causes the SetValue method to be called on each
                         change made to the editor instead of after the change
                         has been approved (e.g. the Caption property).
        paReadOnly:      Value is not allowed to change.
        paRevertable:    Allows the property to be reverted to the original
                         value.  Things that shouldn't be reverted are nested
                         properties (e.g. Fonts) and elements of a composite
                         property such as set element values.
        paFullWidthName: Tells the object inspector that the value does not