KDb

KDbFieldValidator.cpp
1 /* This file is part of the KDE project
2  Copyright (C) 2006 JarosÅ‚aw Staniek <[email protected]>
3 
4  This program is free software; you can redistribute it and/or
5  modify it under the terms of the GNU Library General Public
6  License as published by the Free Software Foundation; either
7  version 2 of the License, or (at your option) any later version.
8 
9  This program is distributed in the hope that it will be useful,
10  but WITHOUT ANY WARRANTY; without even the implied warranty of
11  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12  Library General Public License for more details.
13 
14  You should have received a copy of the GNU Library General Public License
15  along with this program; see the file COPYING. If not, write to
16  the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
17  * Boston, MA 02110-1301, USA.
18 */
19 
20 #include "KDbFieldValidator.h"
21 #include "KDbField.h"
22 #include "KDbLongLongValidator.h"
23 
24 #include <QIntValidator>
25 #include <QDoubleValidator>
26 #include <QWidget>
27 
28 using namespace KDbUtils;
29 
31  : KDbMultiValidator(parent)
32 {
33 //! @todo merge this code with KexiTableEdit code!
34 //! @todo set maximum length validator
35 //! @todo handle input mask (via QLineEdit::setInputMask()
36  const KDbField::Type t = field.type(); // cache: evaluating type of expressions can be expensive
37  if (KDbField::isIntegerType(t)) {
38  QValidator *validator = nullptr;
39  const bool u = field.isUnsigned();
40  int bottom = 0, top = 0;
41  if (t == KDbField::Byte) {
42  bottom = u ? 0 : -0x80;
43  top = u ? 0xff : 0x7f;
44  } else if (t == KDbField::ShortInteger) {
45  bottom = u ? 0 : -0x8000;
46  top = u ? 0xffff : 0x7fff;
47  } else if (t == KDbField::Integer) {
48  bottom = u ? 0 : -0x7fffffff - 1;
49  top = u ? 0xffffffff : 0x7fffffff;
50  validator = new KDbLongLongValidator(bottom, top, nullptr);
51  } else if (t == KDbField::BigInteger) {
52 //! @todo handle unsigned (using ULongLongValidator)
53  validator = new KDbLongLongValidator(nullptr);
54  }
55 
56  if (!validator)
57  validator = new QIntValidator(bottom, top, nullptr); //the default
58  addSubvalidator(validator);
59  } else if (KDbField::isFPNumericType(t)) {
60  QValidator *validator;
61  if (t == KDbField::Float) {
62  if (field.isUnsigned()) //ok?
63  validator = new QDoubleValidator(0, 3.4e+38, field.scale(), nullptr);
64  else
65  validator = new QDoubleValidator((QObject*)nullptr);
66  } else {//double
67  if (field.isUnsigned()) //ok?
68  validator = new QDoubleValidator(0, 1.7e+308, field.scale(), nullptr);
69  else
70  validator = new QDoubleValidator((QObject*)nullptr);
71  }
72  addSubvalidator(validator);
73  } else if (t == KDbField::Date) {
74 //! @todo add validator
75 // QValidator *validator = new KDateValidator(this);
76 // setValidator( validator );
77  } else if (t == KDbField::Time) {
78 //! @todo add validator
79  } else if (t == KDbField::DateTime) {
80  } else if (t == KDbField::Boolean) {
81 //! @todo add BooleanValidator
82  addSubvalidator(new QIntValidator(0, 1, nullptr));
83  }
84 }
85 
86 KDbFieldValidator::~KDbFieldValidator()
87 {
88 }
int scale() const
Definition: KDbField.cpp:291
bool isFPNumericType() const
Definition: KDbField.h:335
void addSubvalidator(QValidator *validator, bool owned=true)
KDbFieldValidator(const KDbField &field, QWidget *parent=nullptr)
Setups the validator for field. Does not keep a pointer to field.
A validator for longlong data type.
bool isUnsigned() const
if the type has the unsigned attribute
Definition: KDbField.h:515
A validator groupping multiple QValidators.
Definition: KDbValidator.h:119
bool isIntegerType() const
Definition: KDbField.h:326
@ Integer
Definition: KDbField.h:90
@ BigInteger
Definition: KDbField.h:91
Type type() const
Definition: KDbField.cpp:379
@ Byte
Definition: KDbField.h:87
@ Boolean
Definition: KDbField.h:92
Meta-data for a field.
Definition: KDbField.h:71
@ Float
Definition: KDbField.h:96
@ ShortInteger
Definition: KDbField.h:89
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