slistbox.pas

Alpha Controls 5.40,delphi上的alpha开发源码控件包。没有密码。5.40版的最新版。

unit sListBox;
{$I sDefs.inc}
{.$DEFINE LOGGED}

interface

{$IFDEF TNTUNICODE}
uses StdCtrls, controls, classes, forms, graphics, messages, windows, sysutils, consts, sCommonData,
  sConst, sDefaults, commctrl, acSBUtils, TntStdCtrls;

type
  TsListBox = class(TTntListBox)
{$IFNDEF NOTFORHELP}
  private
    FCommonData: TsCommonData;
    FDisabledKind: TsDisabledKind;
    FBoundLabel: TsBoundLabel;
    procedure SetDisabledKind(const Value: TsDisabledKind);
  public
    ListSW : TacScrollWnd;
    procedure AfterConstruction; override;
    constructor Create(AOwner: TComponent); override;
    destructor Destroy; override;
    procedure Loaded; override;
    procedure WndProc (var Message: TMessage); override;
  published
{$ENDIF} // NOTFORHELP
    property BoundLabel : TsBoundLabel read FBoundLabel write FBoundLabel;
    property SkinData : TsCommonData read FCommonData write FCommonData;
    property DisabledKind : TsDisabledKind read FDisabledKind write SetDisabledKind default DefDisabledKind;
  end;
{$ENDIF}

implementation

{$IFDEF TNTUNICODE}

uses sVCLUtils, sMessages, sGraphUtils, sAlphaGraph, sSkinProps;

{ TsListBox }

procedure TsListBox.AfterConstruction;
begin
  inherited AfterConstruction;
  FCommonData.Loaded;
end;

constructor TsListBox.Create(AOwner: TComponent);
begin
  inherited Create(AOwner);
  ControlStyle := ControlStyle - [csOpaque];
  FCommonData := TsCommonData.Create(Self, {$IFDEF DYNAMICCACHE} False {$ELSE} True {$ENDIF});
  FCommonData.COC := COC_TsListBox;
  if FCommonData.SkinSection = '' then FCommonData.SkinSection := s_Edit;
  FDisabledKind := DefDisabledKind;
  FBoundLabel := TsBoundLabel.Create(Self, FCommonData);
end;

destructor TsListBox.Destroy;
begin
  if ListSW <> nil then FreeAndNil(ListSW);
  FreeAndNil(FBoundLabel);
  if Assigned(FCommonData) then FreeAndNil(FCommonData);
  inherited Destroy;
end;

procedure TsListBox.Loaded;
begin
  inherited Loaded;
  FCommonData.Loaded;
  RefreshEditScrolls(SkinData, ListSW);
end;

procedure TsListBox.SetDisabledKind(const Value: TsDisabledKind);
begin
  if FDisabledKind <> Value then begin
    FDisabledKind := Value;
    FCommonData.Invalidate;
  end;
end;

procedure TsListBox.WndProc(var Message: TMessage);
begin
{$IFDEF LOGGED}
  AddToLog(Message);
{$ENDIF}
  if Message.Msg = SM_ALPHACMD then case Message.WParamHi of

{    AC_SETNEWSKIN : if (LongWord(Message.LParam) = LongWord(SkinData.SkinManager)) then begin
//      BorderStyle := bsSingle;
      CommonWndProc(Message, FCommonData);
      exit
    end;            }
    AC_REMOVESKIN : if LongWord(Message.LParam) = LongWord(SkinData.SkinManager) then begin
      if ListSW <> nil then FreeAndNil(ListSW);
      CommonWndProc(Message, FCommonData);
      RecreateWnd;
      exit
    end;
{    AC_REFRESH : if (LongWord(Message.LParam) = LongWord(SkinData.SkinManager)) then begin
      CommonWndProc(Message, FCommonData);
      RefreshEditScrolls(SkinData, ListSW);
      Perform(WM_ERASEBKGND, 0, 0);
      Repaint;
      SendMessage(Handle, WM_NCPAINT, 0, 0);
      exit
    end}
  end;
  if not ControlIsReady(Self) or not FCommonData.Skinned then inherited else begin
{    case Message.Msg of
      WM_PAINT : begin
        FCommonData.Updating := FCommonData.Updating;
        if FCommonData.Updating then begin // Exit if parent is not ready yet
          BeginPaint(Handle, PS);
          EndPaint(Handle, PS);
          Exit;
        end;
        if ControlIsActive(FCommonData) then begin
          if not FCommonData.CustomColor and (Color <> FCommonData.SkinManager.gd[FCommonData.SkinIndex].HotColor) then Color := FCommonData.SkinManager.gd[FCommonData.SkinIndex].HotColor;
        end
        else if not FCommonData.CustomColor and (Color <> FCommonData.SkinManager.gd[FCommonData.SkinIndex].Color) then Color := FCommonData.SkinManager.gd[FCommonData.SkinIndex].Color;
        inherited;
        exit;
      end;
    end;    }
    CommonWndProc(Message, FCommonData);
    inherited;
{    case Message.Msg of
      CM_SHOWINGCHANGED : RefreshEditScrolls(SkinData, ListSW);
      CM_VISIBLECHANGED, CM_ENABLEDCHANGED, WM_SETFONT : begin
        FCommonData.Invalidate;
      end;
      CM_TEXTCHANGED, CM_CHANGED : if Assigned(ListSW) then UpdateScrolls(ListSW, True);
    end;       }
  end;
  // Aligning of the bound label
  if Assigned(BoundLabel) and Assigned(BoundLabel.FtheLabel) then case Message.Msg of
    WM_SIZE, WM_WINDOWPOSCHANGED : begin BoundLabel.AlignLabel end;
    CM_VISIBLECHANGED : begin BoundLabel.FtheLabel.Visible := Visible; BoundLabel.AlignLabel end;
    CM_ENABLEDCHANGED : begin BoundLabel.FtheLabel.Enabled := Enabled; BoundLabel.AlignLabel end;
    CM_BIDIMODECHANGED : begin BoundLabel.FtheLabel.BiDiMode := BiDiMode; BoundLabel.AlignLabel end;
  end;
end;
{$ENDIF}

end.