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unit lr_EditParams;
{$mode objfpc}{$H+}
interface
uses
Classes, SysUtils, FileUtil, Forms, Controls, Graphics, Dialogs, ButtonPanel,
StdCtrls, ExtCtrls, Buttons, LR_DB_Zeos, DB;
type
{ TlrEditParamsForm }
TlrEditParamsForm = class(TForm)
BitBtn1: TBitBtn;
ButtonPanel1: TButtonPanel;
ComboBox1: TComboBox;
GroupBox1: TGroupBox;
GroupBox2: TGroupBox;
Label1: TLabel;
Label2: TLabel;
ListBox1: TListBox;
Memo1: TMemo;
Splitter1: TSplitter;
procedure BitBtn1Click(Sender: TObject);
procedure FormCloseQuery(Sender: TObject; var CanClose: boolean);
procedure FormCreate(Sender: TObject);
procedure FormDestroy(Sender: TObject);
procedure ListBox1Click(Sender: TObject);
private
FParams:TQueryParamList;
EditItem:integer;
public
procedure LoadParamList(AParams:TQueryParamList);
procedure SaveParamList(AParams:TQueryParamList);
end;
var
lrEditParamsForm: TlrEditParamsForm;
implementation
uses lrDBZeosConst, lr_expres;
{$R *.lfm}
{ TlrEditParamsForm }
procedure TlrEditParamsForm.FormCreate(Sender: TObject);
begin
Caption:=slrEditParamsForm_Caption;
GroupBox1.Caption:=slrEditParamsForm_ParamsList;
GroupBox2.Caption:=slrEditParamsForm_ParamValue;
Label1.Caption:=slrEditParamsForm_ParamType;
Label2.Caption:=slrEditParamsForm_ParamValue;
BitBtn1.Caption:=slrEditParamsForm_SelectExpresion;
//
FParams:=TQueryParamList.Create;
end;
procedure TlrEditParamsForm.FormCloseQuery(Sender: TObject;
var CanClose: boolean);
begin
if ModalResult = mrOk then
ListBox1Click(nil);
end;
procedure TlrEditParamsForm.BitBtn1Click(Sender: TObject);
var
EF:TlrExpresionEditorForm;
begin
EF:=TlrExpresionEditorForm.Create(Application);
if EF.ShowModal = mrOk then
Memo1.Text:=EF.ResultExpresion;
EF.Free;
end;
procedure TlrEditParamsForm.FormDestroy(Sender: TObject);
begin
FreeAndNil(FParams);
end;
procedure TlrEditParamsForm.ListBox1Click(Sender: TObject);
var
P:TQueryParam;
begin
if (ListBox1.Items.Count>0) and (ListBox1.ItemIndex > -1) and (ListBox1.ItemIndex<ListBox1.Items.Count) then
begin
if EditItem>-1 then
begin
P:=TQueryParam(FParams[EditItem]);
case ComboBox1.ItemIndex of
0:P.ParamType:=ftString; //String
1:P.ParamType:=ftInteger; //Integer
2:P.ParamType:=ftFloat; //Float
3:P.ParamType:=ftDateTime; //DateTime
else
P.ParamType:=ftUnknown;
end;
P.ParamValue:=Memo1.Text;
end;
EditItem:=ListBox1.ItemIndex;
P:=TQueryParam(FParams[EditItem]);
case P.ParamType of
ftString:ComboBox1.ItemIndex:=0; //String
ftInteger:ComboBox1.ItemIndex:=1; //Integer
ftFloat:ComboBox1.ItemIndex:=2; //Float
ftDateTime:ComboBox1.ItemIndex:=3; //DateTime
else
ComboBox1.ItemIndex:=-1;
end;
Memo1.Text:=P.ParamValue;
end;
end;
procedure TlrEditParamsForm.LoadParamList(AParams: TQueryParamList);
var
i:integer;
P:TQueryParam;
begin
FParams.Clear;
ListBox1.Items.Clear;
for i:=0 to AParams.Count - 1 do
begin
P:=TQueryParam(AParams[i]);
FParams.Add(P.ParamType, P.ParamName, P.ParamValue);
ListBox1.Items.Add(P.ParamName);
end;
EditItem:=-1;
if ListBox1.Items.Count > 0 then
begin
ListBox1.ItemIndex:=0;
ListBox1Click(nil);
end;
end;
procedure TlrEditParamsForm.SaveParamList(AParams: TQueryParamList);
var
i:integer;
P, P1:TQueryParam;
begin
for i:=0 to FParams.Count - 1 do
begin
P:=TQueryParam(FParams[i]);
P1:=TQueryParam(AParams[i]);
P1.ParamType:=P.ParamType;
P1.ParamName:=P.ParamName;
P1.ParamValue:=P.ParamValue;
end;
end;
end.
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