Quelle ListBox.hxx
Sprache: C
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
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* 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 .
*/
#pragma once
#include <FormComponent.hxx>
#include "cachedrowset.hxx"
#include "errorbroadcaster.hxx"
#include "entrylisthelper.hxx"
#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 <comphelper/interfacecontainer3.hxx>
#include <comphelper/asyncnotification.hxx>
#include <connectivity/FValue.hxx>
#include <cppuhelper/implbase4.hxx>
#include <vcl/timer.hxx>
#include <vcl/idle.hxx>
#include <vector>
using namespace comphelper;
/** 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 property ( 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
{
typedef ::std::vector< ::connectivity::ORowSetValue > ValueList;
class OListBoxModel final :public OBoundControlModel
,public OEntryListHelper
,public OErrorBroadcaster
{
CachedRowSet m_aListRowSet; // the row set to fill the list
::connectivity::ORowSetValue m_aSaveValue;
// <properties>
css::form::ListSourceType m_eListSourceType; // type of list source
css::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;
css::uno::Sequence<sal_Int16> m_aDefaultSelectSeq; // DefaultSelected
// </properties>
mutable sal_Int16 m_nNULLPos; // position of the NULL value in our list
sal_Int32 m_nBoundColumnType;
private :
::connectivity::ORowSetValue getFirstSelectedValue() const ;
virtual css::uno::Sequence< css::uno::Type> _getTypes() override;
public :
OListBoxModel(
const css::uno::Reference< css::uno::XComponentContext>& _rxFactory
);
OListBoxModel(
const OListBoxModel* _pOriginal,
const css::uno::Reference< css::uno::XComponentContext>& _rxFactory
);
virtual ~OListBoxModel() override;
// XServiceInfo
OUString SAL_CALL getImplementationName() override
{ return u"com.sun.star.form.OListBoxModel" _ustr; }
virtual css::uno::Sequence<OUString> SAL_CALL getSupportedServiceNames() override;
// UNO binding
DECLARE_UNO3_AGG_DEFAULTS(OListBoxModel, OBoundControlModel)
virtual css::uno::Any SAL_CALL queryAggregation( const css::uno::Type& _rType ) override;
// OComponentHelper
virtual void SAL_CALL disposing() override;
// OPropertySetHelper
virtual void SAL_CALL getFastPropertyValue(css::uno::Any& rValue, sal_Int32 nHandle) const override;
virtual void SAL_CALL setFastPropertyValue_NoBroadcast( sal_Int32 nHandle, const css::uno::Any& rValue ) override;
virtual sal_Bool SAL_CALL convertFastPropertyValue(
css::uno::Any& _rConvertedValue, css::uno::Any& _rOldValue, sal_Int32 _nHandle, const css::uno::Any& _rValue ) override;
private :
static const ::connectivity::ORowSetValue s_aEmptyValue;
static const ::connectivity::ORowSetValue s_aEmptyStringValue;
// XMultiPropertySet
virtual void SAL_CALL setPropertyValues(const css::uno::Sequence< OUString >& PropertyNames, const css::uno::Sequence< css::uno::Any >& Values) override;
// XPersistObject
virtual OUString SAL_CALL getServiceName() override;
virtual void SAL_CALL
write(const css::uno::Reference< css::io::XObjectOutputStream>& _rxOutStream) override;
virtual void SAL_CALL
read(const css::uno::Reference< css::io::XObjectInputStream>& _rxInStream) override;
// OControlModel's property handling
virtual void describeFixedProperties(
css::uno::Sequence< css::beans::Property >& /* [out] */ _rProps
) const override;
virtual void describeAggregateProperties(
css::uno::Sequence< css::beans::Property >& /* [out] */ _rAggregateProps
) const override;
// XEventListener
virtual void SAL_CALL disposing(const css::lang::EventObject& Source) override;
// OPropertyChangeListener
virtual void _propertyChanged( const css::beans::PropertyChangeEvent& _rEvt ) override;
// prevent method hiding
using OBoundControlModel::getFastPropertyValue;
using OBoundControlModel::setPropertyValues;
// OBoundControlModel overridables
virtual css::uno::Any translateDbColumnToControlValue( ) override;
virtual css::uno::Sequence< css::uno::Type >
getSupportedBindingTypes() override;
virtual css::uno::Any translateExternalValueToControlValue( const css::uno::Any& _rExternalValue ) const override;
virtual css::uno::Any translateControlValueToExternalValue( ) const override;
virtual css::uno::Any translateControlValueToValidatableValue( ) const override;
virtual bool commitControlValueToDbColumn( bool _bPostReset ) override;
virtual void onConnectedDbColumn( const css::uno::Reference< css::uno::XInterface >& _rxForm ) override;
virtual void onDisconnectedDbColumn() override;
virtual css::uno::Any getDefaultForReset() const override;
virtual void resetNoBroadcast() override;
virtual css::uno::Any getCurrentFormComponentValue() const override;
// OEntryListHelper overridables
virtual void stringItemListChanged( ControlModelLock& _rInstanceLock ) override;
virtual void refreshInternalEntryList() override;
virtual css::uno::Reference< css::util::XCloneable > SAL_CALL createClone( ) override;
void init();
css::uno::Any getCurrentSingleValue() const ;
css::uno::Sequence<css::uno::Any> getCurrentMultiValue() const ;
css::uno::Sequence< sal_Int16 > translateBindingValuesToControlValue(
const css::uno::Sequence< const css::uno::Any > &i_aValues)
const ;
css::uno::Sequence< sal_Int16 > translateDbValueToControlValue(
const ::connectivity::ORowSetValue &aValue)
const ;
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(ValueList &&);
void clearBoundValues();
ValueList impl_getValues() const ;
sal_Int32 getValueType() const ;
void convertBoundValues(sal_Int32 nType) const ;
};
//= OListBoxControl
typedef ::cppu::ImplHelper4 < css::awt::XFocusListener
, css::awt::XItemListener
, css::awt::XListBox
, css::form::XChangeBroadcaster
> OListBoxControl_BASE;
class OListBoxControl :public OBoundControl
,public OListBoxControl_BASE
,public IEventProcessor
{
private :
::comphelper::OInterfaceContainerHelper3<css::form::XChangeListener> m_aChangeListeners;
::comphelper::OInterfaceContainerHelper3<css::awt::XItemListener> m_aItemListeners;
css::uno::Any m_aCurrentSelection;
Idle m_aChangeIdle;
css::uno::Reference< css::awt::XListBox >
m_xAggregateListBox;
::rtl::Reference< ::comphelper::AsyncEventNotifier >
m_pItemBroadcaster;
protected :
// UNO binding
virtual css::uno::Sequence< css::uno::Type> _getTypes() override;
public :
explicit OListBoxControl(const css::uno::Reference< css::uno::XComponentContext>& _rxFactory);
virtual ~OListBoxControl() override;
// UNO binding
DECLARE_UNO3_AGG_DEFAULTS(OListBoxControl, OBoundControl)
virtual css::uno::Any SAL_CALL queryAggregation( const css::uno::Type& _rType ) override;
// XServiceInfo
OUString SAL_CALL getImplementationName() override
{ return u"com.sun.star.form.OListBoxControl" _ustr; }
virtual css::uno::Sequence<OUString> SAL_CALL getSupportedServiceNames() override;
// XChangeBroadcaster
virtual void SAL_CALL addChangeListener(const css::uno::Reference< css::form::XChangeListener>& _rxListener) override;
virtual void SAL_CALL removeChangeListener(const css::uno::Reference< css::form::XChangeListener>& _rxListener) override;
// XFocusListener
virtual void SAL_CALL focusGained(const css::awt::FocusEvent& _rEvent) override;
virtual void SAL_CALL focusLost(const css::awt::FocusEvent& _rEvent) override;
// XItemListener
virtual void SAL_CALL itemStateChanged(const css::awt::ItemEvent& _rEvent) override;
// XEventListener
virtual void SAL_CALL disposing(const css::lang::EventObject& Source) override;
// OComponentHelper
virtual void SAL_CALL disposing() override;
// XListBox
virtual void SAL_CALL addItemListener( const css::uno::Reference< css::awt::XItemListener >& l ) override;
virtual void SAL_CALL removeItemListener( const css::uno::Reference< css::awt::XItemListener >& l ) override;
virtual void SAL_CALL addActionListener( const css::uno::Reference< css::awt::XActionListener >& l ) override;
virtual void SAL_CALL removeActionListener( const css::uno::Reference< css::awt::XActionListener >& l ) override;
virtual void SAL_CALL addItem( const OUString& aItem, ::sal_Int16 nPos ) override;
virtual void SAL_CALL addItems( const css::uno::Sequence< OUString >& aItems, ::sal_Int16 nPos ) override;
virtual void SAL_CALL removeItems( ::sal_Int16 nPos, ::sal_Int16 nCount ) override;
virtual ::sal_Int16 SAL_CALL getItemCount( ) override;
virtual OUString SAL_CALL getItem( ::sal_Int16 nPos ) override;
virtual css::uno::Sequence< OUString > SAL_CALL getItems( ) override;
virtual ::sal_Int16 SAL_CALL getSelectedItemPos( ) override;
virtual css::uno::Sequence< ::sal_Int16 > SAL_CALL getSelectedItemsPos( ) override;
virtual OUString SAL_CALL getSelectedItem( ) override;
virtual css::uno::Sequence< OUString > SAL_CALL getSelectedItems( ) override;
virtual void SAL_CALL selectItemPos( ::sal_Int16 nPos, sal_Bool bSelect ) override;
virtual void SAL_CALL selectItemsPos( const css::uno::Sequence< ::sal_Int16 >& aPositions, sal_Bool bSelect ) override;
virtual void SAL_CALL selectItem( const OUString& aItem, sal_Bool bSelect ) override;
virtual sal_Bool SAL_CALL isMutipleMode( ) override;
virtual void SAL_CALL setMultipleMode( sal_Bool bMulti ) override;
virtual ::sal_Int16 SAL_CALL getDropDownLineCount( ) override;
virtual void SAL_CALL setDropDownLineCount( ::sal_Int16 nLines ) override;
virtual void SAL_CALL makeVisible( ::sal_Int16 nEntry ) override;
protected :
// IEventProcessor
virtual void processEvent( const ::comphelper::AnyEvent& _rEvent ) override;
private :
DECL_LINK( OnTimeout, Timer*, void );
};
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
Messung V0.5 in Prozent C=95 H=97 G=95
¤ Dauer der Verarbeitung: 0.13 Sekunden
(vorverarbeitet am 2026-09-29)
¤
*© Formatika GbR, Deutschland
2026-10-10
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