cxoistringsed.pas

delphi的的三方控件

{********************************************************************}
{                                                                    }
{       Developer Express Visual Component Library                   }
{       ExpressVerticalGrid                                          }
{                                                                    }
{       Copyright (c) 1998-2007 Developer Express Inc.               }
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unit cxOIStringsEd;

{$I cxVer.inc}

interface

uses
  Windows, Messages, SysUtils, Classes, Graphics, Controls, Forms, Dialogs,
  StdCtrls, Buttons, ExtCtrls, cxLookAndFeels, cxLookAndFeelPainters,
  cxButtons, cxControls, cxContainer, cxEdit, cxTextEdit, cxMemo, ComCtrls,
  Menus;

type
  TcxfmStringsEditor = class(TForm)
    pnlClient: TPanel;
    GroupBox: TGroupBox;
    pnlClientTop: TPanel;
    Label1: TLabel;
    pnlClientClient: TPanel;
    Memo1: TcxMemo;
    btnOK: TcxButton;
    btnCancel: TcxButton;
    procedure Memo1PropertiesChange(Sender: TObject);
    procedure FormPaint(Sender: TObject);
    procedure FormResize(Sender: TObject);
  private
    FSizeGripBounds: TRect;
    procedure WMNCHitTest(var Message: TWMNCHitTest); message WM_NCHITTEST;
  protected
    procedure CreateParams(var Params: TCreateParams); override;
    procedure CreateWnd; override;
    procedure DoShow; override;
  end;

  PcxStringsEditorDlgData = ^TcxStringsEditorDlgData;
  TcxStringsEditorDlgData = record
    Caption: string;
    LookAndFeel: TcxLookAndFeel;
    Text: string;
  end;

function cxShowStringsEditor(const AData: PcxStringsEditorDlgData): Boolean;

implementation

uses
{$IFDEF DELPHI6}
  Types,
{$ENDIF}
  dxThemeConsts, dxThemeManager, dxUxTheme, cxClasses, cxVGridConsts;

{$R *.DFM}

function cxShowStringsEditor(const AData: PcxStringsEditorDlgData): Boolean;
var
  Form: TcxfmStringsEditor;
begin
  Form := TcxfmStringsEditor.Create(nil);
  with Form do
  try
    Caption := AData.Caption;
    Memo1.Text := AData.Text;
    Memo1.Style.LookAndFeel.MasterLookAndFeel := AData.LookAndFeel;
    btnOK.Caption := cxGetResourceString(@cxSvgOKCaption);
    btnOK.LookAndFeel.MasterLookAndFeel := AData.LookAndFeel;
    btnCancel.Caption := cxGetResourceString(@cxSvgCancelCaption);
    btnCancel.LookAndFeel.MasterLookAndFeel := AData.LookAndFeel;
    Result := Form.ShowModal = mrOK;
    if Result then
      AData^.Text := Memo1.Text;
  finally
    Free;
  end;
end;

procedure TcxfmStringsEditor.CreateParams(var Params: TCreateParams);
begin
  inherited CreateParams(Params);
  Params.ExStyle := WS_EX_DLGMODALFRAME or WS_EX_WINDOWEDGE;
end;

procedure TcxfmStringsEditor.CreateWnd;
begin
  inherited CreateWnd;
  SendMessage(Self.Handle, WM_SETICON, 1, 0);
end;

procedure TcxfmStringsEditor.DoShow;
begin
  inherited DoShow;
  Memo1PropertiesChange(nil);
end;

procedure TcxfmStringsEditor.Memo1PropertiesChange(Sender: TObject);
begin
  Label1.Caption := IntToStr(Memo1.InnerControl.Perform(EM_GETLINECOUNT, 0, 0)) + ' line(s)';
end;

procedure TcxfmStringsEditor.WMNCHitTest(var Message: TWMNCHitTest);
begin
  inherited;
  if not (csDesigning in ComponentState) then
  begin
    if Message.Result in [HTCLIENT, HTRIGHT, HTBOTTOM]  then
      if PtInRect(FSizeGripBounds, GetMouseCursorPos) then
        Message.Result := HTBOTTOMRIGHT;
  end;
end;

procedure TcxfmStringsEditor.FormPaint(Sender: TObject);
var
  ATheme: TTheme;
  R: TRect;
begin
  R := ClientRect;
  R.Left := R.Right - GetSystemMetrics(SM_CXVSCROLL);
  R.Top := R.Bottom - GetSystemMetrics(SM_CYHSCROLL);
  if btnOk.LookAndFeel.NativeStyle and AreVisualStylesAvailable([totScrollBar]) then
  begin
    ATheme := OpenTheme(totScrollBar);
    DrawThemeBackground(ATheme, Canvas.Handle, SBP_SIZEBOX, SZB_RIGHTALIGN, @R);
  end
  else
    DrawFrameControl(Canvas.Handle, R, DFC_SCROLL, DFCS_SCROLLSIZEGRIP);
end;

procedure TcxfmStringsEditor.FormResize(Sender: TObject);
begin
  GetWindowRect(Handle, FSizeGripBounds);
  FSizeGripBounds.Left := FSizeGripBounds.Right - GetSystemMetrics(SM_CXVSCROLL);
  FSizeGripBounds.Top := FSizeGripBounds.Bottom - GetSystemMetrics(SM_CYHSCROLL);
  Invalidate;
end;

end.