dbctrlseh.pas

非常出色表格制作工具,可以生成多种表格.

  end;

  TDBEditEh = class(TCustomDBEditEh)
  published
    property Alignment;
    property AlwaysShowBorder;
    property Anchors;
    property AutoSelect;
    property AutoSize;
    property BiDiMode;
    property BorderStyle;
    property CharCase;
    property Color;
    property Constraints;
    property Ctl3D;
    property DataField;
    property DataSource;
    property DragCursor;
    property DragKind;
    property DragMode;
    property EditButtons;
    property Enabled;
    property EditMask;
    property Font;
    property Flat;
    property ImeMode;
    property ImeName;
    property MaxLength;
    property MRUList;
    property ParentBiDiMode;
    property ParentColor;
    property ParentCtl3D;
    property ParentFont;
    property ParentShowHint;
    property PasswordChar;
    property PopupMenu;
    property ReadOnly;
    property ShowHint;
    property TabOrder;
    property TabStop;
    property Text;
    property Visible;
    property WantTabs;
    property WantReturns;
    property WordWrap;
    property OnChange;
    property OnClick;
{$IFDEF EH_LIB_5}
    property OnContextPopup;
{$ENDIF}
    property OnDblClick;
    property OnDragDrop;
    property OnDragOver;
    property OnEndDock;
    property OnEndDrag;
    property OnEnter;
    property OnExit;
    property OnKeyDown;
    property OnKeyPress;
    property OnKeyUp;
    property OnMouseDown;
    property OnMouseMove;
    property OnMouseUp;
    property OnUpdateData;
    property OnStartDock;
    property OnStartDrag;
  end;

{ TCustomDBDateTimeEditEh }

  TDateTimeKindEh = (dtkDateEh, dtkTimeEh, dtkDateTimeEh, dtkCustomEh);

  TElementMaskPosEh = record
    Pos, Length: Integer;
    Present: Boolean;
  end;

  TDateTimeElementsMaskPosEh = record
    Year: TElementMaskPosEh;
    Month: TElementMaskPosEh;
    Day: TElementMaskPosEh;
    Hour: TElementMaskPosEh;
    Min: TElementMaskPosEh;
    Sec: TElementMaskPosEh;
  end;

  TCustomDBDateTimeEditEh = class(TCustomDBEditEh)
  private
    FCalendarVisible: Boolean;
    FDropDownCalendar: TWinControl;
    FEditValidating: Boolean;
    FInternalTextSetting: Boolean;
    FKind: TDateTimeKindEh;
    FValue: Variant;
    FOnCloseUp: TCloseUpEventEh;
    FOnDropDown: TNotifyEvent;
    FEditFormat: String;
    FDateTimeFormat: String;
    function GetDropDownCalendar: TWinControl;
    function IsEditFormatStored: Boolean;
    function IsKindStored: Boolean;
    procedure CMCancelMode(var Message: TCMCancelMode); message CM_CANCELMODE;
    procedure CMEnter(var Message: TCMEnter); message CM_ENTER;
    procedure CMMouseWheel(var Message: TCMMouseWheel); message CM_MOUSEWHEEL;
    procedure CMWantSpecialKey(var Message: TCMWantSpecialKey); message CM_WANTSPECIALKEY;
    procedure ReadEditFormat(Reader: TReader);
    procedure SetEditFormat(const Value: String);
    procedure SetKind(const Value: TDateTimeKindEh);
    procedure UpdateValueFromText;
    procedure WMGetDlgCode(var Message: TMessage); message WM_GETDLGCODE;
    procedure WMKillFocus(var Message: TWMKillFocus); message WM_KILLFOCUS;
    procedure WriteEditFormat(Writer: TWriter);
  protected
    FDateTimeMaskPos: TDateTimeElementsMaskPosEh;
    FFourDigitYear: Boolean;
    function CreateEditButton: TEditButtonEh; override;
    function DoMouseWheelDown(Shift: TShiftState; MousePos: TPoint): Boolean; override;
    function DoMouseWheelUp(Shift: TShiftState; MousePos: TPoint): Boolean; override;
    function GetDisplayTextForPaintCopy: String; override;
    function GetVariantValue: Variant; override;
    procedure ButtonDown(IsDownButton: Boolean); override;
    procedure Change; override;
    procedure DataChanged; override;
    procedure DefineProperties(Filer: TFiler); override;
    procedure EditButtonMouseMove(Sender: TObject; Shift: TShiftState; X, Y: Integer); override;
    procedure FilterMRUItem(AText: String; var Accept: Boolean); override;
    procedure IncrementItemAtCurPos(IsIncrease: Boolean);
    procedure InternalSetControlText(AText: String);
    procedure InternalSetText(AText: String); override;
    procedure InternalSetValue(AValue: Variant); override;
    procedure InternalUpdatePostData; override;
    procedure KeyDown(var Key: Word; Shift: TShiftState); override;
    procedure KeyPress(var Key: Char); override;
    procedure UpdateFourDigitYear; virtual;
    procedure WndProc(var Message: TMessage); override;
    property DropDownCalendar: TWinControl read GetDropDownCalendar;
  public
    constructor Create(AOwner: TComponent); override;
    destructor Destroy; override;
    function DateTimeFormat: String;
    procedure CloseUp(Accept: Boolean); override;
    procedure DropDown; override;
    procedure UpdateMask; virtual;
    procedure ValidateEdit; override;
    property CalendarVisible: Boolean read FCalendarVisible;
    property EditFormat: String read FEditFormat write SetEditFormat stored False; //IsEditFormatStored;
    property Kind: TDateTimeKindEh read FKind write SetKind stored IsKindStored;
    property OnCloseUp: TCloseUpEventEh read FOnCloseUp write FOnCloseUp;
    property OnDropDown: TNotifyEvent read FOnDropDown write FOnDropDown;
  end;

{ TDBDateTimeEditEh }

  TDBDateTimeEditEh = class(TCustomDBDateTimeEditEh)
  published
    property Alignment;
    property AlwaysShowBorder;
    property Anchors;
    property AutoSelect;
    property AutoSize;
    property BiDiMode;
    property BorderStyle;
    property Color;
    property Constraints;
    property Ctl3D;
    property DataField;
    property DataSource;
    property DragCursor;
    property DragKind;
    property DragMode;
    property Enabled;
    property EditButton;
    property EditButtons;
    property EditFormat;
    property Font;
    property Flat;
    property ImeMode;
    property ImeName;
    property Kind;
    property MRUList;
    property ParentBiDiMode;
    property ParentColor;
    property ParentCtl3D;
    property ParentFont;
    property ParentShowHint;
    property PopupMenu;
    property ReadOnly;
    property ShowHint;
    property TabOrder;
    property TabStop;
    property Value;
    property Visible;
    property OnButtonClick;
    property OnButtonDown;
    property OnChange;
    property OnClick;
    property OnCloseUp;
{$IFDEF EH_LIB_5}
    property OnContextPopup;
{$ENDIF}
    property OnDblClick;
    property OnDragDrop;
    property OnDragOver;
    property OnDropDown;
    property OnEndDock;
    property OnEndDrag;
    property OnEnter;
    property OnExit;
    property OnKeyDown;
    property OnKeyPress;
    property OnKeyUp;
    property OnMouseDown;
    property OnMouseMove;
    property OnMouseUp;
    property OnUpdateData;
    property OnStartDock;
    property OnStartDrag;
  end;

{ TDropDownBoxEh }

  TDropDownBoxEh = class(TPersistent)
  private
    FAlign: TDropDownAlign;
    FAutoDrop: Boolean;
    FRows: Integer;
    FSizable: Boolean;
    FWidth: Integer;
  public
    procedure Assign(Source: TPersistent); override;
  published
    property Align: TDropDownAlign read FAlign write FAlign default daLeft;
    property AutoDrop: Boolean read FAutoDrop write FAutoDrop default False;
    property Rows: Integer read FRows write FRows default 7;
    property Sizable: Boolean read FSizable write FSizable default False;
    property Width: Integer read FWidth write FWidth default 0;
  end;

{ TCustomDBComboBoxEh }

  TCustomDBComboBoxEh = class(TCustomDBEditEh)
  private
    FDropDownBox: TDropDownBoxEh;
    FItemIndex: Integer;
    FItems: TStrings;
    FKeyItems: TStrings;
    FListVisible: Boolean;
    FOnNotInList: TNotInListEventEh;
    FPopupListbox: TWinControl;
    FOnCloseUp: TCloseUpEventEh;
    FOnDropDown: TNotifyEvent;
    function GetImages: TCustomImageList;
    function GetPopupListbox: TWinControl;
    procedure CMCancelMode(var Message: TCMCancelMode); message CM_CANCELMODE;
    procedure CMMouseWheel(var Message: TCMMouseWheel); message CM_MOUSEWHEEL;
    procedure CMWantSpecialKey(var Message: TCMWantSpecialKey); message CM_WANTSPECIALKEY;
    procedure ItemsChanged(Sender: TObject);
    procedure KeyItemsChanged(Sender: TObject);
    procedure ListMouseUp(Sender: TObject; Button: TMouseButton; Shift: TShiftState; X, Y: Integer);
    procedure SetDropDownBox(const Value: TDropDownBoxEh);
    procedure SetImages(const Value: TCustomImageList);
    procedure SetItemIndex(const Value: Integer);
    procedure SetItems(const Value: TStrings);
    procedure SetKeyItems(const Value: TStrings);
    procedure WMChar(var Message: TWMChar); message WM_CHAR;
    procedure WMGetDlgCode(var Message: TMessage); message WM_GETDLGCODE;
    procedure WMKillFocus(var Message: TWMKillFocus); message WM_KILLFOCUS;
    procedure WMPaste(var Message: TMessage); message WM_PASTE;
    procedure WMSetCursor(var Message: TWMSetCursor); message WM_SETCURSOR;
  protected
    FItemsCount: Integer;
    FKeyBased: Boolean;
    FVarValue: Variant;
    function ConvertDataText(const Value: String): String;
    function CreateEditButton: TEditButtonEh; override;
    function DefaultAlignment: TAlignment; override;
    function DoMouseWheelDown(Shift: TShiftState; MousePos: TPoint): Boolean; override;
    function DoMouseWheelUp(Shift: TShiftState; MousePos: TPoint): Boolean; override;
    function GetDisplayTextForPaintCopy: String; override;
    function GetVariantValue: Variant; override;
    function IsValidChar(InputChar: Char): Boolean; override;
    function LocateStr(Str: String; PartialKey: Boolean): Boolean; virtual;
    function ProcessSearchStr(Str: String): Boolean; virtual;
    function TextListIndepended: Boolean;
    function TraceMouseMoveForPopupListbox(Sender: TObject; Shift: TShiftState; X, Y: Integer): Boolean;
    procedure ButtonDown(IsDownButton: Boolean); override;
    procedure Change; override;
    procedure Click; override;
    procedure DataChanged; override;
    procedure EditButtonClick(Sender: TObject); override;
    procedure EditButtonMouseMove(Sender: TObject; Shift: TShiftState; X, Y: Integer); override;
    procedure InternalSetItemIndex(const Value: Integer);
    procedure InternalSetText(AText: String); override;
    procedure InternalSetValue(AValue: Variant); override;
    procedure InternalUpdatePostData; override;
    procedure KeyDown(var Key: Word; Shift: TShiftState); override;
    procedure KeyPress(var Key: Char); override;
    procedure MouseDown(Button: TMouseButton; Shift: TShiftState; X, Y: Integer); override;
    procedure MouseMove(Shift: TShiftState; X, Y: Integer); override;
    procedure ResetMaxLength; override;
    procedure SetVariantValue(const VariantValue: Variant); override;
    procedure UpdateControlReadOnly; override;
    procedure UpdateItemIndex;
    procedure UpdateItems;
    procedure WndProc(var Message: TMessage); override;
    property PopupListbox: TWinControl read GetPopupListbox;
  public
    constructor Create(AOwner: TComponent); override;
    destructor Destroy; override;
    procedure Clear; {$IFDEF EH_LIB_5} override; {$ELSE} reintroduce; {$ENDIF}
    procedure CloseUp(Accept: Boolean); override;
    procedure DefaultHandler(var Message); override;
    procedure DropDown; override;
    procedure SelectNextValue(IsPrior: Boolean);
    procedure UpdateData; override;
    property DropDownBox: TDropDownBoxEh read FDropDownBox write SetDropDownBox;
    property Images: TCustomImageList read GetImages write SetImages;
    property ItemIndex: Integer read FItemIndex write SetItemIndex;
    property Items: TStrings read FItems write SetItems;
    property KeyItems: TStrings read FKeyItems write SetKeyItems;
    property ListVisible: Boolean read FListVisible;
    property OnCloseUp: TCloseUpEventEh read FOnCloseUp write FOnCloseUp;
    property OnDropDown: TNotifyEvent read FOnDropDown write FOnDropDown;
    property OnNotInList: TNotInListEventEh read FOnNotInList write FOnNotInList;
  end;

{ TDBComboBoxEh }

  TDBComboBoxEh = class(TCustomDBComboBoxEh)
  published
    property Alignment;
    property AlwaysShowBorder;
    property Anchors;
    property AutoSelect;
    property AutoSize;
    property BiDiMode;
    property BorderStyle;
    property CharCase;
    property Color;
    property Constraints;
    property Ctl3D;
    property DataField;
    property DataSource;
    property DragCursor;
    property DragKind;
    property DragMode;
    property DropDownBox;
    property Enabled;
    property EditButton;
    property EditButtons;
    property EditMask;
    property Font;
    property Flat;
    property ImeMode;
    property ImeName;
    property Images;
    property Items;
    property KeyItems;
    property MaxLength;
    property MRUList;
    property ParentBiDiMode;
    property ParentColor;
    property ParentCtl3D;
    property ParentFont;
    property ParentShowHint;
    property PopupMenu;
    property ReadOnly;
    property ShowHint;
    property TabOrder;
    property TabStop;
    property Text;
    property Visible;
    property WordWrap;
    property OnButtonClick;
    property OnButtonDown;