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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*
* This file incorporates work covered by the following license notice:
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed
* with this work for additional information regarding copyright
* ownership. The ASF licenses this file to you under the Apache
* License, Version 2.0 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.apache.org/licenses/LICENSE-2.0 .
*/
#ifndef _FORMS_LISTBOX_HXX_
#define _FORMS_LISTBOX_HXX_
#include "FormComponent.hxx"
#include "cachedrowset.hxx"
#include "errorbroadcaster.hxx"
#include "entrylisthelper.hxx"
#include <com/sun/star/util/XNumberFormatter.hpp>
#include <com/sun/star/sdb/XSQLErrorBroadcaster.hpp>
#include <com/sun/star/form/ListSourceType.hpp>
#include <com/sun/star/awt/XItemListener.hpp>
#include <com/sun/star/awt/XFocusListener.hpp>
#include <com/sun/star/awt/XListBox.hpp>
#include <com/sun/star/form/XChangeBroadcaster.hpp>
#include <com/sun/star/sdbc/DataType.hpp>
#include <comphelper/asyncnotification.hxx>
#include <connectivity/FValue.hxx>
#include <cppuhelper/interfacecontainer.hxx>
#include <cppuhelper/implbase1.hxx>
#include <vcl/timer.hxx>
#include <vector>
/** ListBox is a bit confusing / different from other form components,
so here are a few notes:
The general design philosophy is that a ListBox is a mechanism
to translate back and forth between:
1) *display* values (strings that the user sees and chooses)
2) *binding* values, which is what the program (for a dialog),
the database, ... cares about.
A non-data aware ListBox exposes this mechanism through
com.sun.star.awt.XItemList (get|set)ItemData.
In a data-aware ListBox, this is naturally embodied by the
StringItemList on the one hand, and the ValueList on the other
hand (where, depending on ListSourceType, the ValueList is
possibly automatically filled from the BoundColumn of the
ListSource).
This source file implements data-aware ListBox, and the rest
of this comment applies to data-aware ListBox (only).
In all public APIs of the *model* (OListBoxModel),
the value of the control is the *binding* value.
That is what the bound database field gets,
that is what a validator validates,
that is what an external value binding
(com.sun.star.form.binding.XValueBinding)
exchanges with the control.
As an *implementation* choice, we keep the current value of the
ListBox as a sequence of *indices* in the value list, and do the
lookup on demand:
- ListBox's content propery (or value property, sorry the
terminology is not always consistent) is SelectedItems which is
a sequence of *indices* in the value list.
- That is used to synchronise with our peer (UnoControlListBoxModel).
In particular, note that getCurrentValue() is a public API (and
deals with bound values), but getControlValue and
(do)setControlValue are *internal* implementation helpers that
deal with *indices*.
Note that the *view* (OListBoxControl) presents a different story
than the model. E.g. the "SelectedItems" property is *display* *values*.
*/
//.........................................................................
namespace frm
{
//==================================================================
//= OListBoxModel
//==================================================================
typedef ::std::vector< ::connectivity::ORowSetValue > ValueList;
class OListBoxModel :public OBoundControlModel
,public OEntryListHelper
,public OErrorBroadcaster
{
CachedRowSet m_aListRowSet; // the row set to fill the list
::connectivity::ORowSetValue m_aSaveValue;
// <properties>
::com::sun::star::form::ListSourceType m_eListSourceType; // type der list source
::com::sun::star::uno::Any m_aBoundColumn;
ValueList m_aListSourceValues;
ValueList m_aBoundValues; // do not write directly; use setBoundValues()
mutable ValueList m_aConvertedBoundValues;
mutable sal_Int32 m_nConvertedBoundValuesType;
::com::sun::star::uno::Sequence<sal_Int16> m_aDefaultSelectSeq; // DefaultSelected
// </properties>
sal_Int16 m_nNULLPos; // position of the NULL value in our list
sal_Int32 m_nBoundColumnType;
private:
::connectivity::ORowSetValue getFirstSelectedValue() const;
virtual ::com::sun::star::uno::Sequence< ::com::sun::star::uno::Type> _getTypes();
public:
DECLARE_DEFAULT_LEAF_XTOR( OListBoxModel );
// XServiceInfo
IMPLEMENTATION_NAME(OListBoxModel);
virtual StringSequence SAL_CALL getSupportedServiceNames() throw(::com::sun::star::uno::RuntimeException);
// UNO Anbindung
DECLARE_UNO3_AGG_DEFAULTS(OListBoxModel, OBoundControlModel);
virtual ::com::sun::star::uno::Any SAL_CALL queryAggregation( const ::com::sun::star::uno::Type& _rType ) throw (::com::sun::star::uno::RuntimeException);
// OComponentHelper
virtual void SAL_CALL disposing();
// OPropertySetHelper
virtual void SAL_CALL getFastPropertyValue(::com::sun::star::uno::Any& rValue, sal_Int32 nHandle) const;
virtual void SAL_CALL setFastPropertyValue_NoBroadcast( sal_Int32 nHandle, const ::com::sun::star::uno::Any& rValue )
throw (::com::sun::star::uno::Exception);
virtual sal_Bool SAL_CALL convertFastPropertyValue(
::com::sun::star::uno::Any& _rConvertedValue, ::com::sun::star::uno::Any& _rOldValue, sal_Int32 _nHandle, const ::com::sun::star::uno::Any& _rValue )
throw (::com::sun::star::lang::IllegalArgumentException);
protected:
// XMultiPropertySet
virtual void SAL_CALL setPropertyValues(const ::com::sun::star::uno::Sequence< OUString >& PropertyNames, const ::com::sun::star::uno::Sequence< ::com::sun::star::uno::Any >& Values) throw(::com::sun::star::beans::PropertyVetoException, ::com::sun::star::lang::IllegalArgumentException, ::com::sun::star::lang::WrappedTargetException, ::com::sun::star::uno::RuntimeException);
// XPersistObject
virtual OUString SAL_CALL getServiceName() throw(::com::sun::star::uno::RuntimeException);
virtual void SAL_CALL
write(const ::com::sun::star::uno::Reference< ::com::sun::star::io::XObjectOutputStream>& _rxOutStream) throw(::com::sun::star::io::IOException, ::com::sun::star::uno::RuntimeException);
virtual void SAL_CALL
read(const ::com::sun::star::uno::Reference< ::com::sun::star::io::XObjectInputStream>& _rxInStream) throw(::com::sun::star::io::IOException, ::com::sun::star::uno::RuntimeException);
// OControlModel's property handling
virtual void describeFixedProperties(
::com::sun::star::uno::Sequence< ::com::sun::star::beans::Property >& /* [out] */ _rProps
) const;
virtual void describeAggregateProperties(
::com::sun::star::uno::Sequence< ::com::sun::star::beans::Property >& /* [out] */ _rAggregateProps
) const;
// XEventListener
virtual void SAL_CALL disposing(const ::com::sun::star::lang::EventObject& Source) throw (::com::sun::star::uno::RuntimeException);
// OPropertyChangeListener
virtual void _propertyChanged( const ::com::sun::star::beans::PropertyChangeEvent& _rEvt ) throw ( ::com::sun::star::uno::RuntimeException );
// prevent method hiding
using OBoundControlModel::getFastPropertyValue;
using OBoundControlModel::setPropertyValues;
protected:
// OBoundControlModel overridables
virtual ::com::sun::star::uno::Any
translateDbColumnToControlValue( );
virtual ::com::sun::star::uno::Sequence< ::com::sun::star::uno::Type >
getSupportedBindingTypes();
virtual ::com::sun::star::uno::Any
translateExternalValueToControlValue( const ::com::sun::star::uno::Any& _rExternalValue ) const;
virtual ::com::sun::star::uno::Any
translateControlValueToExternalValue( ) const;
virtual ::com::sun::star::uno::Any
translateControlValueToValidatableValue( ) const;
virtual sal_Bool commitControlValueToDbColumn( bool _bPostReset );
virtual void onConnectedDbColumn( const ::com::sun::star::uno::Reference< ::com::sun::star::uno::XInterface >& _rxForm );
virtual void onDisconnectedDbColumn();
virtual ::com::sun::star::uno::Any
getDefaultForReset() const;
virtual void resetNoBroadcast();
virtual ::com::sun::star::uno::Any
getCurrentFormComponentValue() const;
// OEntryListHelper overridables
virtual void stringItemListChanged( ControlModelLock& _rInstanceLock );
virtual void connectedExternalListSource( );
virtual void disconnectedExternalListSource( );
virtual void refreshInternalEntryList();
protected:
DECLARE_XCLONEABLE();
void init();
::com::sun::star::uno::Any getCurrentSingleValue() const;
::com::sun::star::uno::Any getCurrentMultiValue() const;
::com::sun::star::uno::Sequence< sal_Int16 > translateBindingValuesToControlValue(
const ::com::sun::star::uno::Sequence< const ::com::sun::star::uno::Any > &i_aValues)
const;
::com::sun::star::uno::Sequence< sal_Int16 > translateDbValueToControlValue(
const ::connectivity::ORowSetValue &aValue)
const;
private:
void loadData( bool _bForce );
/** refreshes the list boxes list data
@precond we don't actually have an external list source
*/
void impl_refreshDbEntryList( bool _bForce );
void setBoundValues(const ValueList&);
void clearBoundValues();
ValueList impl_getValues() const;
sal_Int32 getValueType() const;
void convertBoundValues(sal_Int32 nType) const;
bool impl_hasBoundComponent() const { return m_nBoundColumnType != ::com::sun::star::sdbc::DataType::SQLNULL; }
};
//==================================================================
//= OListBoxControl
//==================================================================
typedef ::cppu::ImplHelper4 < ::com::sun::star::awt::XFocusListener
, ::com::sun::star::awt::XItemListener
, ::com::sun::star::awt::XListBox
, ::com::sun::star::form::XChangeBroadcaster
> OListBoxControl_BASE;
class OListBoxControl :public OBoundControl
,public OListBoxControl_BASE
,public IEventProcessor
{
private:
::cppu::OInterfaceContainerHelper m_aChangeListeners;
::cppu::OInterfaceContainerHelper m_aItemListeners;
::com::sun::star::uno::Any m_aCurrentSelection;
Timer m_aChangeTimer;
::com::sun::star::uno::Reference< ::com::sun::star::awt::XListBox >
m_xAggregateListBox;
::rtl::Reference< ::comphelper::AsyncEventNotifier >
m_pItemBroadcaster;
protected:
// UNO Anbindung
virtual ::com::sun::star::uno::Sequence< ::com::sun::star::uno::Type> _getTypes();
public:
OListBoxControl(const ::com::sun::star::uno::Reference< ::com::sun::star::uno::XComponentContext>& _rxFactory);
virtual ~OListBoxControl();
// UNO Anbindung
DECLARE_UNO3_AGG_DEFAULTS(OListBoxControl, OBoundControl);
virtual ::com::sun::star::uno::Any SAL_CALL queryAggregation( const ::com::sun::star::uno::Type& _rType ) throw (::com::sun::star::uno::RuntimeException);
// XServiceInfo
IMPLEMENTATION_NAME(OListBoxControl);
virtual StringSequence SAL_CALL getSupportedServiceNames() throw(::com::sun::star::uno::RuntimeException);
// XChangeBroadcaster
virtual void SAL_CALL addChangeListener(const ::com::sun::star::uno::Reference< ::com::sun::star::form::XChangeListener>& _rxListener) throw(::com::sun::star::uno::RuntimeException);
virtual void SAL_CALL removeChangeListener(const ::com::sun::star::uno::Reference< ::com::sun::star::form::XChangeListener>& _rxListener) throw(::com::sun::star::uno::RuntimeException);
// XFocusListener
virtual void SAL_CALL focusGained(const ::com::sun::star::awt::FocusEvent& _rEvent) throw(::com::sun::star::uno::RuntimeException);
virtual void SAL_CALL focusLost(const ::com::sun::star::awt::FocusEvent& _rEvent) throw(::com::sun::star::uno::RuntimeException);
// XItemListener
virtual void SAL_CALL itemStateChanged(const ::com::sun::star::awt::ItemEvent& _rEvent) throw(::com::sun::star::uno::RuntimeException);
// XEventListener
virtual void SAL_CALL disposing(const ::com::sun::star::lang::EventObject& Source) throw (::com::sun::star::uno::RuntimeException);
// OComponentHelper
virtual void SAL_CALL disposing();
// XListBox
virtual void SAL_CALL addItemListener( const ::com::sun::star::uno::Reference< ::com::sun::star::awt::XItemListener >& l ) throw (::com::sun::star::uno::RuntimeException);
virtual void SAL_CALL removeItemListener( const ::com::sun::star::uno::Reference< ::com::sun::star::awt::XItemListener >& l ) throw (::com::sun::star::uno::RuntimeException);
virtual void SAL_CALL addActionListener( const ::com::sun::star::uno::Reference< ::com::sun::star::awt::XActionListener >& l ) throw (::com::sun::star::uno::RuntimeException);
virtual void SAL_CALL removeActionListener( const ::com::sun::star::uno::Reference< ::com::sun::star::awt::XActionListener >& l ) throw (::com::sun::star::uno::RuntimeException);
virtual void SAL_CALL addItem( const OUString& aItem, ::sal_Int16 nPos ) throw (::com::sun::star::uno::RuntimeException);
virtual void SAL_CALL addItems( const ::com::sun::star::uno::Sequence< OUString >& aItems, ::sal_Int16 nPos ) throw (::com::sun::star::uno::RuntimeException);
virtual void SAL_CALL removeItems( ::sal_Int16 nPos, ::sal_Int16 nCount ) throw (::com::sun::star::uno::RuntimeException);
virtual ::sal_Int16 SAL_CALL getItemCount( ) throw (::com::sun::star::uno::RuntimeException);
virtual OUString SAL_CALL getItem( ::sal_Int16 nPos ) throw (::com::sun::star::uno::RuntimeException);
virtual ::com::sun::star::uno::Sequence< OUString > SAL_CALL getItems( ) throw (::com::sun::star::uno::RuntimeException);
virtual ::sal_Int16 SAL_CALL getSelectedItemPos( ) throw (::com::sun::star::uno::RuntimeException);
virtual ::com::sun::star::uno::Sequence< ::sal_Int16 > SAL_CALL getSelectedItemsPos( ) throw (::com::sun::star::uno::RuntimeException);
virtual OUString SAL_CALL getSelectedItem( ) throw (::com::sun::star::uno::RuntimeException);
virtual ::com::sun::star::uno::Sequence< OUString > SAL_CALL getSelectedItems( ) throw (::com::sun::star::uno::RuntimeException);
virtual void SAL_CALL selectItemPos( ::sal_Int16 nPos, ::sal_Bool bSelect ) throw (::com::sun::star::uno::RuntimeException);
virtual void SAL_CALL selectItemsPos( const ::com::sun::star::uno::Sequence< ::sal_Int16 >& aPositions, ::sal_Bool bSelect ) throw (::com::sun::star::uno::RuntimeException);
virtual void SAL_CALL selectItem( const OUString& aItem, ::sal_Bool bSelect ) throw (::com::sun::star::uno::RuntimeException);
virtual ::sal_Bool SAL_CALL isMutipleMode( ) throw (::com::sun::star::uno::RuntimeException);
virtual void SAL_CALL setMultipleMode( ::sal_Bool bMulti ) throw (::com::sun::star::uno::RuntimeException);
virtual ::sal_Int16 SAL_CALL getDropDownLineCount( ) throw (::com::sun::star::uno::RuntimeException);
virtual void SAL_CALL setDropDownLineCount( ::sal_Int16 nLines ) throw (::com::sun::star::uno::RuntimeException);
virtual void SAL_CALL makeVisible( ::sal_Int16 nEntry ) throw (::com::sun::star::uno::RuntimeException);
protected:
// IEventProcessor
virtual void processEvent( const ::comphelper::AnyEvent& _rEvent );
private:
DECL_LINK( OnTimeout, void* );
};
//.........................................................................
}
//.........................................................................
#endif // _FORMS_LISTBOX_HXX_
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
|
