david
47aaf11578
git-svn-id: https://192.168.0.254/svn/Componentes.Terceros.DevExpressVCL@38 05c56307-c608-d34a-929d-697000501d7a
298 lines
10 KiB
ObjectPascal
298 lines
10 KiB
ObjectPascal
|
|
{*******************************************************************}
|
|
{ }
|
|
{ Developer Express Visual Component Library }
|
|
{ ExpressQuantumGrid filter custom dialog }
|
|
{ }
|
|
{ Copyright (c) 1998-2009 Developer Express Inc. }
|
|
{ ALL RIGHTS RESERVED }
|
|
{ }
|
|
{ The entire contents of this file is protected by U.S. and }
|
|
{ International Copyright Laws. Unauthorized reproduction, }
|
|
{ reverse-engineering, and distribution of all or any portion of }
|
|
{ the code contained in this file is strictly prohibited and may }
|
|
{ result in severe civil and criminal penalties and will be }
|
|
{ prosecuted to the maximum extent possible under the law. }
|
|
{ }
|
|
{ RESTRICTIONS }
|
|
{ }
|
|
{ THIS SOURCE CODE AND ALL RESULTING INTERMEDIATE FILES }
|
|
{ (DCU, OBJ, DLL, ETC.) ARE CONFIDENTIAL AND PROPRIETARY TRADE }
|
|
{ SECRETS OF DEVELOPER EXPRESS INC. THE REGISTERED DEVELOPER IS }
|
|
{ LICENSED TO DISTRIBUTE THE EXPRESSGRID AND ALL ACCOMPANYING VCL }
|
|
{ CONTROLS AS PART OF AN EXECUTABLE PROGRAM ONLY. }
|
|
{ }
|
|
{ THE SOURCE CODE CONTAINED WITHIN THIS FILE AND ALL RELATED }
|
|
{ FILES OR ANY PORTION OF ITS CONTENTS SHALL AT NO TIME BE }
|
|
{ COPIED, TRANSFERRED, SOLD, DISTRIBUTED, OR OTHERWISE MADE }
|
|
{ AVAILABLE TO OTHER INDIVIDUALS WITHOUT EXPRESS WRITTEN CONSENT }
|
|
{ AND PERMISSION FROM DEVELOPER EXPRESS INC. }
|
|
{ }
|
|
{ CONSULT THE END USER LICENSE AGREEMENT FOR INFORMATION ON }
|
|
{ ADDITIONAL RESTRICTIONS. }
|
|
{ }
|
|
{*******************************************************************}
|
|
|
|
unit dxGrFDlg;
|
|
|
|
interface
|
|
|
|
{$I dxTLVer.inc}
|
|
|
|
uses
|
|
Windows, Messages, SysUtils, Classes, Graphics, Controls, Forms, Dialogs,
|
|
StdCtrls, ExtCtrls, dxFilter, dxGrFltr, dxDBGrid, dxGrFCmn, dxDBCtrl,
|
|
dxCntner, dxExEdtr, DB{$IFDEF DELPHI6}, Variants{$ENDIF};
|
|
|
|
type
|
|
TdxFilterDialogComboEdit = class(TdxInplaceImageEdit)
|
|
public
|
|
class function IsInplace: Boolean; override;
|
|
end;
|
|
|
|
TfmCustomDialog = class(TForm)
|
|
rbAnd: TRadioButton;
|
|
rbOr: TRadioButton;
|
|
lblTitle: TLabel;
|
|
LColumnName: TLabel;
|
|
bvlLine: TBevel;
|
|
lblSingle: TLabel;
|
|
lblSeries: TLabel;
|
|
btnOK: TButton;
|
|
btnCancel: TButton;
|
|
Edit1: TLabel;
|
|
Edit2: TLabel;
|
|
cbOperator1: TLabel;
|
|
cbOperator2: TLabel;
|
|
procedure FormCloseQuery(Sender: TObject; var CanClose: Boolean);
|
|
private
|
|
FColumn: TdxDBTreeListColumn;
|
|
FComboEditFirst: TdxFilterDialogComboEdit;
|
|
FComboEditSecond: TdxFilterDialogComboEdit;
|
|
FEditFirst: TdxInplaceEdit;
|
|
FEditSecond: TdxInplaceEdit;
|
|
// Values
|
|
FFirstValue: Variant;
|
|
FFirstDisplayValue: string;
|
|
FSecondValue: Variant;
|
|
FSecondDisplayValue: string;
|
|
end;
|
|
|
|
function CustomDialog(AColumn: TdxDBTreeListColumn; ACriteria: TdxDBGridCriteria): Boolean;
|
|
|
|
implementation
|
|
|
|
{$R *.DFM}
|
|
|
|
const
|
|
OperatorStrList: array [TdxDBGridOperatorType] of string = (dxSFilterOperatorEqual,
|
|
dxSFilterOperatorNotEqual, dxSFilterOperatorGreater, dxSFilterOperatorGreaterEqual,
|
|
dxSFilterOperatorLess, dxSFilterOperatorLessEqual, dxSFilterOperatorBlanks,
|
|
dxSFilterOperatorNonBlanks);
|
|
|
|
type
|
|
TControlWrapper = class(TControl);
|
|
TdxColumnWrapper = class(TdxDBTreeListColumn);
|
|
|
|
class function TdxFilterDialogComboEdit.IsInplace: Boolean;
|
|
begin
|
|
Result := False;
|
|
end;
|
|
|
|
function CustomDialog(AColumn: TdxDBTreeListColumn; ACriteria: TdxDBGridCriteria): Boolean;
|
|
var
|
|
ASupportedOperators: TdxDBGridOperatorTypes;
|
|
|
|
procedure LoadComboEdit(AComboEdit: TdxFilterDialogComboEdit);
|
|
var
|
|
I: TdxDBGridOperatorType;
|
|
begin
|
|
with AComboEdit do
|
|
begin
|
|
for I := Low(TdxDBGridOperatorType) to High(TdxDBGridOperatorType) do
|
|
if I in ASupportedOperators then
|
|
begin
|
|
Values.Add(IntToStr(Integer(I)));
|
|
Descriptions.Add(OperatorStrList[I]);
|
|
end;
|
|
end;
|
|
end;
|
|
|
|
procedure InitEdits(AComboEdit: TdxFilterDialogComboEdit; AEdit: TdxInplaceEdit;
|
|
AItem: TdxCriteriaItem);
|
|
const
|
|
AOperators: array [TdxOperatorType] of TdxDBGridOperatorType = (gotBlank,
|
|
gotEqual, gotGreater, gotLess, gotGreaterEqual, gotLessEqual);
|
|
var
|
|
ADBGridOperatorType: TdxDBGridOperatorType;
|
|
begin
|
|
ADBGridOperatorType := AOperators[AItem.Operator];
|
|
if AItem.IsNot then
|
|
case ADBGridOperatorType of
|
|
gotBlank:
|
|
ADBGridOperatorType := gotNonBlank;
|
|
gotEqual:
|
|
ADBGridOperatorType := gotNotEqual;
|
|
end;
|
|
AComboEdit.Text := IntToStr(Integer(ADBGridOperatorType));
|
|
TdxColumnWrapper(AColumn).SetFilterEditValue(AEdit, AItem.Value);
|
|
end;
|
|
|
|
procedure AddItem(AParent: TdxCriteriaItemList; AComboEdit: TdxFilterDialogComboEdit;
|
|
AValue: Variant; ADisplayValue: string);
|
|
const
|
|
ADBOperators: array [TdxDBGridOperatorType] of TdxOperatorType = (otEqual,
|
|
otEqual, otGreater, otGreaterEqual, otLess, otLessEqual, otIsNull, otIsNull);
|
|
var
|
|
ADBGridOperatorType: TdxDBGridOperatorType;
|
|
var
|
|
AOperator: TdxOperatorType;
|
|
AIsNot: Boolean;
|
|
I: Integer;
|
|
begin
|
|
I := StrToInt(AComboEdit.Text);
|
|
if I <> -1 then
|
|
begin
|
|
ADBGridOperatorType := TdxDBGridOperatorType(I);
|
|
AOperator := ADBOperators[ADBGridOperatorType];
|
|
if AValue = Null then AOperator := otIsNull;
|
|
AIsNot := ADBGridOperatorType in [gotNotEqual, gotNonBlank];
|
|
if ADBGridOperatorType in [gotBlank, gotNonBlank] then
|
|
begin
|
|
AValue := Null;
|
|
ADisplayValue := '';
|
|
end;
|
|
ACriteria.AddItem(AParent, AColumn, AOperator, AValue, ADisplayValue, AIsNot);
|
|
end;
|
|
end;
|
|
|
|
var
|
|
AForm: TfmCustomDialog;
|
|
AItem: TdxCriteriaItem;
|
|
AItemList: TdxCriteriaItemList;
|
|
begin
|
|
AForm := TfmCustomDialog.Create(Application);
|
|
try
|
|
with AForm do
|
|
begin
|
|
FColumn := AColumn;
|
|
Font.Name := TControlWrapper(AColumn.ATreeList).Font.Name;
|
|
Font.Charset := TControlWrapper(AColumn.ATreeList).Font.Charset;
|
|
LColumnName.Caption := AColumn.Caption + ' ';
|
|
// Combos
|
|
ASupportedOperators := TdxColumnWrapper(AColumn).GetFilterOperators;
|
|
FComboEditFirst := TdxFilterDialogComboEdit.Create(AForm);
|
|
with FComboEditFirst do
|
|
begin
|
|
BoundsRect := cbOperator1.BoundsRect;
|
|
Parent := AForm;
|
|
LoadComboEdit(FComboEditFirst);
|
|
DropDownRows := Values.Count;
|
|
Text := '0';
|
|
TabOrder := 0;
|
|
end;
|
|
FComboEditSecond := TdxFilterDialogComboEdit.Create(AForm);
|
|
with FComboEditSecond do
|
|
begin
|
|
BoundsRect := cbOperator2.BoundsRect;
|
|
Parent := AForm;
|
|
Values.Add('-1');
|
|
Descriptions.Add('');
|
|
LoadComboEdit(FComboEditSecond);
|
|
DropDownRows := Values.Count;
|
|
Text := '-1';
|
|
TabOrder := rbOr.TabOrder + 1;
|
|
end;
|
|
// Edits
|
|
FEditFirst := TdxColumnWrapper(AColumn).GetFilterEdit(AForm);
|
|
with FEditFirst do
|
|
begin
|
|
BoundsRect := Edit1.BoundsRect;
|
|
Parent := AForm;
|
|
TabOrder := FComboEditFirst.TabOrder + 1;
|
|
end;
|
|
FEditSecond := TdxColumnWrapper(AColumn).GetFilterEdit(AForm);
|
|
with FEditSecond do
|
|
begin
|
|
BoundsRect := Edit2.BoundsRect;
|
|
Parent := AForm;
|
|
TabOrder := FComboEditSecond.TabOrder + 1;
|
|
end;
|
|
AItem := ACriteria.FindItemByColumn(AColumn);
|
|
if AItem <> nil then
|
|
begin
|
|
InitEdits(FComboEditFirst, FEditFirst, AItem);
|
|
if (AItem.Parent <> ACriteria.Root) and (AItem.Parent.Items[1] <> nil) then
|
|
begin
|
|
if AItem.Parent.BoolOperator = boOr then
|
|
rbOr.Checked := True
|
|
else
|
|
rbAnd.Checked := True;
|
|
AItem := TdxCriteriaItem(AItem.Parent.Items[1]);
|
|
InitEdits(FComboEditSecond, FEditSecond, AItem);
|
|
end;
|
|
end;
|
|
Result := ShowModal = mrOK;
|
|
if Result then
|
|
begin
|
|
ACriteria.RemoveItemsByColumn(AColumn);
|
|
if FComboEditSecond.Text <> '-1' then
|
|
begin
|
|
AItemList := ACriteria.Root.AddList(TdxBoolOperator(rbOr.Checked));
|
|
AddItem(AItemList, FComboEditFirst, FFirstValue, FFirstDisplayValue);
|
|
AddItem(AItemList, FComboEditSecond, FSecondValue, FSecondDisplayValue);
|
|
end
|
|
else
|
|
AddItem(nil, FComboEditFirst, FFirstValue, FFirstDisplayValue);
|
|
end;
|
|
end;
|
|
finally
|
|
AForm.Free;
|
|
end;
|
|
end;
|
|
|
|
procedure ValidateValue(AColumn: TdxDBTreeListColumn; AEdit: TdxInplaceEdit; var AValue: Variant);
|
|
var
|
|
ATempValue: Variant;
|
|
AVarType: Integer;
|
|
begin
|
|
if not {VarEqualNull}VarIsNull(AValue) then
|
|
begin
|
|
AVarType := AColumn.VariantType;
|
|
try
|
|
if AVarType <> varUnknown then
|
|
begin
|
|
VarCast(ATempValue, AValue, AVarType);
|
|
AValue := ATempValue;
|
|
end;
|
|
except
|
|
on EVariantError do
|
|
begin
|
|
AEdit.SetFocus;
|
|
raise Exception.Create(dxSFilterInvalidValue);
|
|
end;
|
|
end;
|
|
end;
|
|
end;
|
|
|
|
procedure TfmCustomDialog.FormCloseQuery(Sender: TObject;
|
|
var CanClose: Boolean);
|
|
begin
|
|
if ModalResult = mrOK then
|
|
begin
|
|
FEditFirst.ValidateEdit;
|
|
FEditSecond.ValidateEdit;
|
|
FFirstValue := Null;
|
|
FFirstDisplayValue := '';
|
|
TdxColumnWrapper(FColumn).GetFilterEditValues(FEditFirst, FFirstValue, FFirstDisplayValue);
|
|
ValidateValue(FColumn, FEditFirst, FFirstValue);
|
|
FSecondValue := Null;
|
|
FSecondDisplayValue := '';
|
|
if FComboEditSecond.Text <> '-1' then
|
|
TdxColumnWrapper(FColumn).GetFilterEditValues(FEditSecond, FSecondValue, FSecondDisplayValue);
|
|
ValidateValue(FColumn, FEditSecond, FSecondValue);
|
|
end;
|
|
end;
|
|
|
|
end.
|