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unit lr_expres;
{$mode objfpc}{$H+}
interface
uses
Classes, SysUtils, LResources, Forms, Controls, Graphics, Dialogs, StdCtrls,
Buttons, ExtCtrls, ButtonPanel, SynEdit, LR_Const;
type
{ TlrExpresionEditorForm }
TlrExpresionEditorForm = class(TForm)
BitBtn1: TBitBtn;
BitBtn2: TBitBtn;
BitBtn3: TBitBtn;
Button1: TButton;
Button10: TButton;
Button11: TButton;
Button12: TButton;
Button13: TButton;
Button14: TButton;
Button2: TButton;
Button3: TButton;
Button4: TButton;
Button5: TButton;
Button6: TButton;
Button7: TButton;
Button8: TButton;
Button9: TButton;
ButtonPanel1: TButtonPanel;
GroupBox1: TGroupBox;
Label1: TLabel;
Panel1: TPanel;
Memo1: TSynEdit;
procedure BitBtn1Click(Sender: TObject);
procedure BitBtn2Click(Sender: TObject);
procedure BitBtn3Click(Sender: TObject);
procedure Button13Click(Sender: TObject);
procedure FormCreate(Sender: TObject);
private
procedure AddWord(S:string);
public
function ResultExpresion:string;
end;
implementation
{$R *.lfm}
uses LR_Var, LR_Flds, lr_funct_editor_unit, lr_funct_editor_unit1, LR_Class;
{ TlrExpresionEditorForm }
procedure TlrExpresionEditorForm.Button13Click(Sender: TObject);
begin
AddWord((Sender as TButton).Caption);
end;
procedure TlrExpresionEditorForm.FormCreate(Sender: TObject);
begin
Caption := sInsertExpression;
Label1.Caption := sVar2;
GroupBox1.Caption := sInsert;
BitBtn3.Caption := sDBField;
BitBtn2.Caption := sVariable;
BitBtn1.Caption := sEditorFormFunction;
end;
procedure TlrExpresionEditorForm.BitBtn2Click(Sender: TObject);
begin
frVarForm := TfrVarForm.Create(nil);
try
with frVarForm do
if ShowModal = mrOk then
begin
if SelectedItem <> '' then
AddWord('[' + SelectedItem + ']');
end;
finally
frVarForm.Free;
end;
end;
procedure TlrExpresionEditorForm.BitBtn1Click(Sender: TObject);
var
LR_FunctEditorForm: TLR_FunctEditorForm;
FD:TfrFunctionDescription;
LR_FunctEditor1Form: TLR_FunctEditor1Form;
begin
FD:=nil;
LR_FunctEditorForm:=TLR_FunctEditorForm.Create(Application);
try
if LR_FunctEditorForm.ShowModal = mrOk then
FD:=LR_FunctEditorForm.CurentFunctionDescription;
finally
LR_FunctEditorForm.Free;
end;
if Assigned(FD) then
begin
LR_FunctEditor1Form:=TLR_FunctEditor1Form.Create(Application);
try
LR_FunctEditor1Form.SetFunctionDescription(FD);
if LR_FunctEditor1Form.ShowModal = mrOk then
AddWord(LR_FunctEditor1Form.ResultText);
finally
LR_FunctEditor1Form.Free;
end;
end;
end;
procedure TlrExpresionEditorForm.BitBtn3Click(Sender: TObject);
begin
frFieldsForm := TfrFieldsForm.Create(nil);
try
with frFieldsForm do
begin
if ShowModal = mrOk then
begin
if DBField <> '' then
AddWord('[' + DBField + ']');
end;
end;
finally
frFieldsForm.Free;
end;
end;
procedure TlrExpresionEditorForm.AddWord(S: string);
begin
if Memo1.Lines.Count = 0 then
Memo1.Lines.Add(S)
else
begin
Memo1.Lines[Memo1.Lines.Count-1]:=Memo1.Lines[Memo1.Lines.Count-1] + S;
end;
Memo1.CaretY:=Memo1.Lines.Count-1;
Memo1.CaretX:=Length(Memo1.Lines[Memo1.Lines.Count-1])+1;
Memo1.SetFocus;
end;
function TlrExpresionEditorForm.ResultExpresion: string;
begin
Result:=Trim(Memo1.Text);
end;
end.
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