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232 lines
8.2 KiB
232 lines
8.2 KiB
/* This file is part of the KDE project
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Copyright (C) 2004 Cedric Pasteur <cedric.pasteur@free.fr>
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Copyright (C) 2004-2007 Jaroslaw Staniek <js@iidea.pl>
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public
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License as published by the Free Software Foundation; either
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version 2 of the License, or (at your option) any later version.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public License
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along with this library; see the file COPYING.LIB. If not, write to
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the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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#ifndef KEXIFORMVIEW_H
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#define KEXIFORMVIEW_H
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#include <qtimer.h>
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#include <kexiviewbase.h>
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#include <widget/kexidataawareview.h>
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#include "kexiformpart.h"
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#include <core/kexiblobbuffer.h>
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class KexiFormPart;
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class KexiMainWindow;
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class KexiDBForm;
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class KexiTableItem;
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class KexiTableViewData;
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class KexiFormScrollView;
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namespace KexiDB { class Cursor; }
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namespace KFormDesigner
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{
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class Container;
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}
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//! The KexiFormView lass provides a data-driven (record-based) form view .
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/*! The KexiFormView can display data provided "by hand"
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or from KexiDB-compatible database source.
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This class provides a single view used inside KexiDialogBase.
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It takes care of saving/loading form, of enabling actions when needed.
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One KexiFormView object is instantiated for data view mode
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and a second KexiFormView object is instantiated for design view mode.
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@see KexiDataTable
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*/
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class KEXIFORMUTILS_EXPORT KexiFormView : public KexiDataAwareView
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{
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Q_OBJECT
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public:
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enum ResizeMode {
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ResizeAuto = 0,
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ResizeDefault = ResizeAuto,
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ResizeFixed = 1,
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NoResize = 2 /*! @todo */
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};
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// KexiFormView(KexiMainWindow *win, QWidget *parent, const char *name, KexiDB::Connection *conn);
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KexiFormView(KexiMainWindow *mainWin, QWidget *parent, const char *name = 0,
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bool dbAware = true);
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virtual ~KexiFormView();
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// KexiDB::Connection* connection() { return m_conn; }
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virtual QSize preferredSizeHint(const QSize& otherSize);
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int resizeMode() const { return m_resizeMode; }
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KFormDesigner::Form* form() const;
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/*! Assigns \a id local (static) BLOB's identifier for \a widget widget.
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Previously assigned BLOB will be usassigned.
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If \a id is 0, BLOB is unassigned and no new is assigned.
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This method is called when a widget supporting BLOB data
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(currently, images from KexiDBImageBox, within KexiDBFactory) has BLOB assigned by identifier \a id.
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BLOB identifiers are defined by KexiBLOBBuffer (KexiBLOBBuffer::self() instance).
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The data collected by this method is used on form's design saving (in design mode).
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Local BLOBs are retrieved KexiBLOBBuffer::self() and stored in "kexi__blobs" 'system' table.
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Note that db-aware BLOBs (non local) are not handled this way.
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*/
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void setUnsavedLocalBLOB(QWidget *widget, KexiBLOBBuffer::Id_t id);
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public slots:
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/*! Reimplemented to update resize policy. */
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virtual void show();
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/*! Inserts autofields onto the form at \a pos position.
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\a sourceMimeType can be "kexi/table" or "kexi/query",
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\a sourceName is a name of a table or query, \a fields is a list of fields to insert (one or more)
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Fields are inserted using standard KFormDesigner::InsertWidgetCommand framework,
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so undo/redo is available for this operation.
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If multiple fields are provided, they will be aligned vertically.
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If \a pos is QPoint(-1,-1) (the default), position is computed automatically
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based on a position last inserted field using this method.
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If this method has not been called yet, position of QPoint(40, 40) will be set.
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Called by:
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- slotHandleDropEvent() when field(s) are dropped from the data source pane onto the form
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- KexiFormManager is a used clicked "Insert fields" button on the data source pane. */
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void insertAutoFields(const QString& sourceMimeType, const QString& sourceName,
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const QStringList& fields, KFormDesigner::Container* targetContainerWidget,
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const QPoint& pos = QPoint(-1,-1));
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protected slots:
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void slotPropertySetSwitched(KoProperty::Set *b, bool forceReload = false,
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const QCString& propertyToSelect = QCString());
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void slotDirty(KFormDesigner::Form *f, bool isDirty);
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void slotFocus(bool in);
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void slotHandleDragMoveEvent(QDragMoveEvent* e);
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//! Handles field(s) dropping from the data source pane onto the form
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//! @see insertAutoFields()
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void slotHandleDropEvent(QDropEvent* e);
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//moved to formmanager void slotWidgetSelected(KFormDesigner::Form *form, bool multiple);
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//moved to formmanager void slotFormWidgetSelected(KFormDesigner::Form *form);
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//moved to formmanager void slotNoFormSelected();
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//moved to formmanager void setUndoEnabled(bool enabled);
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//moved to formmanager void setRedoEnabled(bool enabled);
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protected:
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virtual tristate beforeSwitchTo(int mode, bool &dontStore);
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virtual tristate afterSwitchFrom(int mode);
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virtual KoProperty::Set* propertySet() { return m_propertySet; }
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virtual KexiDB::SchemaData* storeNewData(const KexiDB::SchemaData& sdata, bool &cancel);
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virtual tristate storeData(bool dontAsk = false);
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KexiFormPart::TempData* tempData() const {
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return dynamic_cast<KexiFormPart::TempData*>(parentDialog()->tempData()); }
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KexiFormPart* formPart() const { return dynamic_cast<KexiFormPart*>(part()); }
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//moved to formmanager void disableWidgetActions();
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//moved to formmanager void enableFormActions();
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void setForm(KFormDesigner::Form *f);
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void initForm();
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void loadForm();
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//! Used in loadForm()
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void updateAutoFieldsDataSource();
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//! Used in loadForm()
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void updateValuesForSubproperties();
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virtual void resizeEvent ( QResizeEvent * );
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void initDataSource();
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virtual void setFocusInternal();
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/* // for navigator
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virtual void moveToRecordRequested(uint r);
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virtual void moveToLastRecordRequested();
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virtual void moveToPreviousRecordRequested();
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virtual void moveToNextRecordRequested();
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virtual void moveToFirstRecordRequested();
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virtual void addNewRecordRequested();*/
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/*! Called after loading the form contents (before showing it).
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Also called when the form window (KexiDialogBase) is detached
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(in KMDI's Child Frame mode), because otherwise tabstop ordering can get broken. */
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void updateTabStopsOrder();
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/*! @internal */
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void deleteQuery();
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/*! @internal */
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void updateDataSourcePage();
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/*! Reimplemented after KexiViewBase.
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Updates actions (e.g. availability). */
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// todo virtual void updateActions(bool activated);
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KexiDBForm *m_dbform;
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KexiFormScrollView *m_scrollView;
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KoProperty::Set *m_propertySet;
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/*! Database cursor used for data retrieving.
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It is shared between subsequent Data view sessions (just reopened on switch),
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but deleted and recreated from scratch when form's "dataSource" property changed
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since last form viewing (m_previousDataSourceString is used for that). */
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QString m_previousDataSourceString;
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int m_resizeMode;
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KexiDB::QuerySchema* m_query;
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/*! True, if m_query is created as temporary object within this form.
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If user selected an existing, predefined (stored) query, m_queryIsOwned will be false,
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so the query object will not be destroyed. */
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bool m_queryIsOwned;
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KexiDB::Cursor *m_cursor;
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/*! For new (empty) forms only:
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Our form's area will be resized more than once.
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We will resize form widget itself later (in resizeEvent()). */
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int m_delayedFormContentsResizeOnShow;
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//! Used in setFocusInternal()
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QGuardedPtr<QWidget> m_setFocusInternalOnce;
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/*! Stores geometry of widget recently inserted using insertAutoFields() method.
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having this information, we'r eable to compute position for a newly
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inserted widget in insertAutoFields() is such position has not been specified.
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(the position is specified when a widget is inserted with mouse drag & dropping
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but not with clicking of 'Insert fields' button from Data Source pane) */
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QRect m_widgetGeometryForRecentInsertAutoFields;
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//! Used in setUnsavedLocalBLOBs()
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// QMap<QWidget*, KexiBLOBBuffer::Id_t> m_unsavedLocalBLOBs;
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};
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#endif
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