griddlg.~pas

delphi 和mapx联合开发的例程 实现mapx的相应功能

unit GridDlg;

interface

uses
  Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
  Dialogs, ExtCtrls, ComCtrls, StdCtrls, Buttons;

type
  TGridFrm = class(TForm)
    GroupBox1: TGroupBox;
    Label1: TLabel;
    Edit1: TEdit;
    Label2: TLabel;
    Edit2: TEdit;
    GroupBox2: TGroupBox;
    GroupBox3: TGroupBox;
    ComboBox1: TComboBox;
    BitBtn1: TBitBtn;
    Label3: TLabel;
    Label4: TLabel;
    UpDown1: TUpDown;
    Edit3: TEdit;
    Edit4: TEdit;
    UpDown2: TUpDown;
    BitBtn2: TBitBtn;
    BitBtn3: TBitBtn;
    SpeedButton1: TSpeedButton;
    Panel1: TPanel;
    ColorDialog1: TColorDialog;
    Label5: TLabel;
    Label6: TLabel;
    Label7: TLabel;
    Edit5: TEdit;
    Label8: TLabel;
    Edit6: TEdit;
    procedure FormClose(Sender: TObject; var Action: TCloseAction);
    procedure SpeedButton1Click(Sender: TObject);
    procedure BitBtn2Click(Sender: TObject);
    procedure BitBtn1Click(Sender: TObject);
  private
    { Private declarations }
    Handle: THandle;
  public
    { Public declarations }
    procedure FormShow(aHandle: THandle; Layers: TStringList; BeginX,BeginY,EndX,EndY: Double;
                       CurrentLayer: string);
  end;

var
  GridFrm: TGridFrm;

implementation

uses NewLayerDlg;

{$R *.dfm}
procedure TGridFrm.FormShow(aHandle: THandle; Layers: TStringList; BeginX,BeginY,EndX,EndY: Double;
                       CurrentLayer: string);
var
  i: Integer;
begin
  GridFrm:= TGridFrm.Create(nil);
  Handle:= aHandle;
  with GridFrm do
  begin
    ComboBox1.Items.Assign(Layers);
    Edit1.Text:= FloatToStr(BeginX);
    Edit2.Text:= FloatToStr(BeginY);
    Edit5.Text:= FloatToStr(EndX);
    Edit6.Text:= FloatToStr(EndY);
    for i:= 0 to ComboBox1.Items.Count-1 do
      if ComboBox1.Items.Strings[i] = CurrentLayer then
        ComboBox1.ItemIndex:= i;
    Panel1.Color:= clBlack;
    ShowModal;
  end;
end;

procedure TGridFrm.FormClose(Sender: TObject; var Action: TCloseAction);
begin
  Action:= caFree;
end;

procedure TGridFrm.SpeedButton1Click(Sender: TObject);
begin
  if ColorDialog1.Execute then
     Panel1.Color:= ColorDialog1.Color;
end;

procedure TGridFrm.BitBtn2Click(Sender: TObject);
begin
  if ComboBox1.Text = '' then
  begin
    Application.MessageBox('请选择图层！','提示信息！',mb_Ok);
    Self.ModalResult:= mrNone;
  end
  else
    Self.ModalResult:= mrOk;
end;

procedure TGridFrm.BitBtn1Click(Sender: TObject);
begin
  NewLayerFrm.FormShow(Handle);
end;

end.