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/****************************************************************************
**
** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the Qt Designer of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** No Commercial Usage
** This file contains pre-release code and may not be distributed.
** You may use this file in accordance with the terms and conditions
** contained in the Technology Preview License Agreement accompanying
** this package.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Nokia gives you certain
** additional rights. These rights are described in the Nokia Qt LGPL
** Exception version 1.1, included in the file LGPL_EXCEPTION.txt in this
** package.
**
** If you have questions regarding the use of this file, please contact
** Nokia at qt-info@nokia.com.
**
**
**
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
//
// W A R N I N G
// -------------
//
// This file is not part of the Qt API. It exists for the convenience
// of Qt Designer. This header
// file may change from version to version without notice, or even be removed.
//
// We mean it.
//
#ifndef QDESIGNER_UTILS_H
#define QDESIGNER_UTILS_H
#include "shared_global_p.h"
#include <QtDesigner/QDesignerFormWindowInterface>
#include <QtCore/QVariant>
#include <QtCore/QMap>
#include <QtGui/QMainWindow>
#include <QtGui/QIcon>
#include <QtGui/QPixmap>
QT_BEGIN_NAMESPACE
namespace qdesigner_internal {
class QDesignerFormWindowCommand;
class DesignerIconCache;
class FormWindowBase;
QDESIGNER_SHARED_EXPORT void designerWarning(const QString &message);
QDESIGNER_SHARED_EXPORT void reloadIconResources(DesignerIconCache *iconCache, QObject *object);
/* Flag/Enumeration helpers for the property sheet: Enumeration or flag values are returned by the property sheet
* as a pair of meta type and integer value.
* The meta type carries all the information required for the property editor and serialization
* by the form builders (names, etc).
* Note that the property editor uses unqualified names ("Cancel") while the form builder serialization (uic)
* requires the whole string
* ("QDialogButtonBox::Cancel" or "com.trolltech.qt.gui.QDialogButtonBox.StandardButton.Cancel").*/
/* --------- MetaEnum: Base class representing a QMetaEnum with lookup functions
* in both ways. Template of int type since unsigned is more suitable for flags.
* The keyToValue() is ignorant of scopes, it can handle fully qualified or unqualified names. */
template <class IntType>
class MetaEnum
{
public:
typedef QMap<QString, IntType> KeyToValueMap;
MetaEnum(const QString &name, const QString &scope, const QString &separator);
MetaEnum() {}
void addKey(IntType value, const QString &name);
QString valueToKey(IntType value, bool *ok = 0) const;
// Ignorant of scopes.
IntType keyToValue(QString key, bool *ok = 0) const;
const QString &name() const { return m_name; }
const QString &scope() const { return m_scope; }
const QString &separator() const { return m_separator; }
const QStringList &keys() const { return m_keys; }
const KeyToValueMap &keyToValueMap() const { return m_keyToValueMap; }
protected:
void appendQualifiedName(const QString &key, QString &target) const;
private:
QString m_name;
QString m_scope;
QString m_separator;
KeyToValueMap m_keyToValueMap;
QStringList m_keys;
};
template <class IntType>
MetaEnum<IntType>::MetaEnum(const QString &name, const QString &scope, const QString &separator) :
m_name(name),
m_scope(scope),
m_separator(separator)
{
}
template <class IntType>
void MetaEnum<IntType>::addKey(IntType value, const QString &name)
{
m_keyToValueMap.insert(name, value);
m_keys.append(name);
}
template <class IntType>
QString MetaEnum<IntType>::valueToKey(IntType value, bool *ok) const
{
const QString rc = m_keyToValueMap.key(value);
if (ok)
*ok = !rc.isEmpty();
return rc;
}
template <class IntType>
IntType MetaEnum<IntType>::keyToValue(QString key, bool *ok) const
{
if (!m_scope.isEmpty() && key.startsWith(m_scope))
key.remove(0, m_scope.size() + m_separator.size());
const Q_TYPENAME KeyToValueMap::const_iterator it = m_keyToValueMap.find(key);
const bool found = it != m_keyToValueMap.constEnd();
if (ok)
*ok = found;
return found ? it.value() : IntType(0);
}
template <class IntType>
void MetaEnum<IntType>::appendQualifiedName(const QString &key, QString &target) const
{
if (!m_scope.isEmpty()) {
target += m_scope;
target += m_separator;
}
target += key;
}
// -------------- DesignerMetaEnum: Meta type for enumerations
class QDESIGNER_SHARED_EXPORT DesignerMetaEnum : public MetaEnum<int>
{
public:
DesignerMetaEnum(const QString &name, const QString &scope, const QString &separator);
DesignerMetaEnum() {}
enum SerializationMode { FullyQualified, NameOnly };
QString toString(int value, SerializationMode sm, bool *ok = 0) const;
QString messageToStringFailed(int value) const;
QString messageParseFailed(const QString &s) const;
// parse a string (ignorant of scopes)
int parseEnum(const QString &s, bool *ok = 0) const { return keyToValue(s, ok); }
};
// -------------- DesignerMetaFlags: Meta type for flags.
// Note that while the handling of flags is done using unsigned integers, the actual values returned
// by the property system are integers.
class QDESIGNER_SHARED_EXPORT DesignerMetaFlags : public MetaEnum<uint>
{
public:
DesignerMetaFlags(const QString &name, const QString &scope, const QString &separator);
DesignerMetaFlags() {}
enum SerializationMode { FullyQualified, NameOnly };
QString toString(int value, SerializationMode sm) const;
QStringList flags(int value) const;
QString messageParseFailed(const QString &s) const;
// parse a string (ignorant of scopes)
int parseFlags(const QString &s, bool *ok = 0) const;
};
// -------------- EnumValue: Returned by the property sheet for enumerations
struct QDESIGNER_SHARED_EXPORT PropertySheetEnumValue
{
PropertySheetEnumValue(int v, const DesignerMetaEnum &me);
PropertySheetEnumValue();
int value;
DesignerMetaEnum metaEnum;
};
// -------------- FlagValue: Returned by the property sheet for flags
struct QDESIGNER_SHARED_EXPORT PropertySheetFlagValue
{
PropertySheetFlagValue(int v, const DesignerMetaFlags &mf);
PropertySheetFlagValue();
int value;
DesignerMetaFlags metaFlags;
};
// -------------- PixmapValue: Returned by the property sheet for pixmaps
class QDESIGNER_SHARED_EXPORT PropertySheetPixmapValue
{
public:
PropertySheetPixmapValue(const QString &path);
PropertySheetPixmapValue();
bool operator==(const PropertySheetPixmapValue &other) const { return compare(other) == 0; }
bool operator!=(const PropertySheetPixmapValue &other) const { return compare(other) != 0; }
bool operator<(const PropertySheetPixmapValue &other) const { return compare(other) < 0; }
// Check where a pixmap comes from
enum PixmapSource { LanguageResourcePixmap , ResourcePixmap, FilePixmap };
static PixmapSource getPixmapSource(QDesignerFormEditorInterface *core, const QString & path);
PixmapSource pixmapSource(QDesignerFormEditorInterface *core) const { return getPixmapSource(core, m_path); }
QString path() const;
void setPath(const QString &path); // passing the empty path resets the pixmap
int compare(const PropertySheetPixmapValue &other) const;
private:
QString m_path;
};
// -------------- IconValue: Returned by the property sheet for icons
class QDESIGNER_SHARED_EXPORT PropertySheetIconValue
{
public:
PropertySheetIconValue(const PropertySheetPixmapValue &pixmap);
PropertySheetIconValue();
bool operator==(const PropertySheetIconValue &other) const { return equals(other); }
bool operator!=(const PropertySheetIconValue &other) const { return !equals(other); }
bool operator<(const PropertySheetIconValue &other) const;
PropertySheetPixmapValue pixmap(QIcon::Mode mode, QIcon::State state) const;
void setPixmap(QIcon::Mode mode, QIcon::State state, const PropertySheetPixmapValue &path); // passing the empty path resets the pixmap
uint mask() const;
uint compare(const PropertySheetIconValue &other) const;
void assign(const PropertySheetIconValue &other, uint mask);
typedef QPair<QIcon::Mode, QIcon::State> ModeStateKey;
typedef QMap<ModeStateKey, PropertySheetPixmapValue> ModeStateToPixmapMap;
ModeStateToPixmapMap paths() const;
private:
bool equals(const PropertySheetIconValue &rhs) const;
ModeStateToPixmapMap m_paths;
};
class QDESIGNER_SHARED_EXPORT DesignerPixmapCache : public QObject
{
Q_OBJECT
public:
DesignerPixmapCache(QObject *parent = 0);
QPixmap pixmap(const PropertySheetPixmapValue &value) const;
void clear();
signals:
void reloaded();
private:
mutable QMap<PropertySheetPixmapValue, QPixmap> m_cache;
friend class FormWindowBase;
};
class QDESIGNER_SHARED_EXPORT DesignerIconCache : public QObject
{
Q_OBJECT
public:
DesignerIconCache(DesignerPixmapCache *pixmapCache, QObject *parent = 0);
QIcon icon(const PropertySheetIconValue &value) const;
void clear();
signals:
void reloaded();
private:
mutable QMap<PropertySheetIconValue, QIcon> m_cache;
DesignerPixmapCache *m_pixmapCache;
friend class FormWindowBase;
};
// -------------- StringValue: Returned by the property sheet for strings
class QDESIGNER_SHARED_EXPORT PropertySheetStringValue
{
public:
PropertySheetStringValue(const QString &value = QString(),
bool translatable = true,
const QString &disambiguation = QString(),
const QString &comment = QString());
bool operator==(const PropertySheetStringValue &other) const { return equals(other); }
bool operator!=(const PropertySheetStringValue &other) const { return !equals(other); }
QString value() const;
void setValue(const QString &value);
bool translatable() const;
void setTranslatable(bool translatable);
QString disambiguation() const;
void setDisambiguation(const QString &disambiguation);
QString comment() const;
void setComment(const QString &comment);
private:
bool equals(const PropertySheetStringValue &rhs) const;
QString m_value;
bool m_translatable;
QString m_disambiguation;
QString m_comment;
};
// -------------- StringValue: Returned by the property sheet for strings
class QDESIGNER_SHARED_EXPORT PropertySheetKeySequenceValue
{
public:
PropertySheetKeySequenceValue(const QKeySequence &value = QKeySequence(),
bool translatable = true,
const QString &disambiguation = QString(),
const QString &comment = QString());
PropertySheetKeySequenceValue(const QKeySequence::StandardKey &standardKey,
bool translatable = true,
const QString &disambiguation = QString(),
const QString &comment = QString());
bool operator==(const PropertySheetKeySequenceValue &other) const { return equals(other); }
bool operator!=(const PropertySheetKeySequenceValue &other) const { return !equals(other); }
QKeySequence value() const;
void setValue(const QKeySequence &value);
QKeySequence::StandardKey standardKey() const;
void setStandardKey(const QKeySequence::StandardKey &standardKey);
bool isStandardKey() const;
bool translatable() const;
void setTranslatable(bool translatable);
QString disambiguation() const;
void setDisambiguation(const QString &disambiguation);
QString comment() const;
void setComment(const QString &comment);
private:
bool equals(const PropertySheetKeySequenceValue &rhs) const;
QKeySequence m_value;
QKeySequence::StandardKey m_standardKey;
bool m_translatable;
QString m_disambiguation;
QString m_comment;
};
} // namespace qdesigner_internal
QT_END_NAMESPACE
// NOTE: Do not move this code, needed for GCC 3.3
Q_DECLARE_METATYPE(qdesigner_internal::PropertySheetEnumValue)
Q_DECLARE_METATYPE(qdesigner_internal::PropertySheetFlagValue)
Q_DECLARE_METATYPE(qdesigner_internal::PropertySheetPixmapValue)
Q_DECLARE_METATYPE(qdesigner_internal::PropertySheetIconValue)
Q_DECLARE_METATYPE(qdesigner_internal::PropertySheetStringValue)
Q_DECLARE_METATYPE(qdesigner_internal::PropertySheetKeySequenceValue)
QT_BEGIN_NAMESPACE
namespace qdesigner_internal {
// Create a command to change a text property (that is, create a reset property command if the text is empty)
QDESIGNER_SHARED_EXPORT QDesignerFormWindowCommand *createTextPropertyCommand(const QString &propertyName, const QString &text, QObject *object, QDesignerFormWindowInterface *fw);
// Returns preferred task menu action for managed widget
QDESIGNER_SHARED_EXPORT QAction *preferredEditAction(QDesignerFormEditorInterface *core, QWidget *managedWidget);
// Convenience to run UIC
enum UIC_Mode { UIC_GenerateCode, UIC_ConvertV3 };
QDESIGNER_SHARED_EXPORT bool runUIC(const QString &fileName, UIC_Mode mode, QByteArray& ba, QString &errorMessage);
// Find a suitable variable name for a class.
QDESIGNER_SHARED_EXPORT QString qtify(const QString &name);
/* UpdateBlocker: Blocks the updates of the widget passed on while in scope.
* Does nothing if the incoming widget already has updatesEnabled==false
* which is important to avoid side-effects when putting it into QStackedLayout. */
class QDESIGNER_SHARED_EXPORT UpdateBlocker {
Q_DISABLE_COPY(UpdateBlocker)
public:
UpdateBlocker(QWidget *w);
~UpdateBlocker();
private:
QWidget *m_widget;
const bool m_enabled;
};
namespace Utils {
inline int valueOf(const QVariant &value, bool *ok = 0)
{
if (qVariantCanConvert<PropertySheetEnumValue>(value)) {
if (ok)
*ok = true;
return qVariantValue<PropertySheetEnumValue>(value).value;
}
else if (qVariantCanConvert<PropertySheetFlagValue>(value)) {
if (ok)
*ok = true;
return qVariantValue<PropertySheetFlagValue>(value).value;
}
return value.toInt(ok);
}
inline bool isObjectAncestorOf(QObject *ancestor, QObject *child)
{
QObject *obj = child;
while (obj != 0) {
if (obj == ancestor)
return true;
obj = obj->parent();
}
return false;
}
inline bool isCentralWidget(QDesignerFormWindowInterface *fw, QWidget *widget)
{
if (! fw || ! widget)
return false;
if (widget == fw->mainContainer())
return true;
// ### generalize for other containers
if (QMainWindow *mw = qobject_cast<QMainWindow*>(fw->mainContainer())) {
return mw->centralWidget() == widget;
}
return false;
}
} // namespace Utils
} // namespace qdesigner_internal
QT_END_NAMESPACE
#endif // QDESIGNER_UTILS_H
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