summaryrefslogtreecommitdiffstats
path: root/forms/source/component/ImageControl.cxx
blob: 3e8dee00e3e4f2e721c3c110e1db33cb94d8ffd2 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
/* -*- 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 .
 */

#include "ImageControl.hxx"

#include <strings.hrc>
#include <frm_resource.hxx>
#include <property.hxx>
#include <services.hxx>
#include <componenttools.hxx>

#include <svtools/imageresourceaccess.hxx>
#include <sfx2/filedlghelper.hxx>
#include <com/sun/star/awt/PopupMenu.hpp>
#include <com/sun/star/awt/XPopupMenu.hpp>
#include <com/sun/star/awt/PopupMenuDirection.hpp>
#include <com/sun/star/beans/PropertyAttribute.hpp>
#include <com/sun/star/form/FormComponentType.hpp>
#include <com/sun/star/ui/dialogs/TemplateDescription.hpp>
#include <com/sun/star/ui/dialogs/ExtendedFilePickerElementIds.hpp>
#include <com/sun/star/ui/dialogs/XFilePicker3.hpp>
#include <com/sun/star/ui/dialogs/XFilePickerControlAccess.hpp>
#include <com/sun/star/sdbc/DataType.hpp>
#include <com/sun/star/awt/MouseButton.hpp>
#include <com/sun/star/awt/XWindow.hpp>
#include <com/sun/star/graphic/XGraphic.hpp>
#include <com/sun/star/graphic/GraphicObject.hpp>
#include <tools/urlobj.hxx>
#include <tools/stream.hxx>
#include <tools/debug.hxx>
#include <tools/diagnose_ex.h>
#include <vcl/graph.hxx>
#include <vcl/svapp.hxx>
#include <unotools/streamhelper.hxx>
#include <comphelper/guarding.hxx>
#include <comphelper/property.hxx>
#include <comphelper/types.hxx>
#include <cppuhelper/queryinterface.hxx>
#include <unotools/ucbstreamhelper.hxx>
#include <svl/urihelper.hxx>

#include <memory>

#define ID_OPEN_GRAPHICS            1
#define ID_CLEAR_GRAPHICS           2

namespace frm
{

using namespace ::com::sun::star;
using namespace ::com::sun::star::uno;
using namespace ::com::sun::star::sdb;
using namespace ::com::sun::star::sdbc;
using namespace ::com::sun::star::beans;
using namespace ::com::sun::star::container;
using namespace ::com::sun::star::form;
using namespace ::com::sun::star::awt;
using namespace ::com::sun::star::io;
using namespace ::com::sun::star::ui::dialogs;
using namespace ::com::sun::star::lang;
using namespace ::com::sun::star::util;
using namespace ::com::sun::star::graphic;
using namespace ::com::sun::star::frame;


//= OImageControlModel

namespace
{
    enum ImageStoreType
    {
        ImageStoreBinary,
        ImageStoreLink,

        ImageStoreInvalid
    };

    ImageStoreType lcl_getImageStoreType( const sal_Int32 _nFieldType )
    {
        // binary/longvarchar types could be used to store images in binary representation
        if  (   ( _nFieldType == DataType::BINARY )
            ||  ( _nFieldType == DataType::VARBINARY )
            ||  ( _nFieldType == DataType::LONGVARBINARY )
            ||  ( _nFieldType == DataType::OTHER )
            ||  ( _nFieldType == DataType::OBJECT )
            ||  ( _nFieldType == DataType::BLOB )
            ||  ( _nFieldType == DataType::LONGVARCHAR )
            ||  ( _nFieldType == DataType::CLOB )
            )
            return ImageStoreBinary;

        // char types could be used to store links to images
        if  (   ( _nFieldType == DataType::CHAR )
            ||  ( _nFieldType == DataType::VARCHAR )
            )
            return ImageStoreLink;

        return ImageStoreInvalid;
    }
}


// OImageControlModel

Sequence<Type> OImageControlModel::_getTypes()
{
    return concatSequences(
        OBoundControlModel::_getTypes(),
        OImageControlModel_Base::getTypes()
    );
}


OImageControlModel::OImageControlModel(const Reference<XComponentContext>& _rxFactory)
    :OBoundControlModel( _rxFactory, VCL_CONTROLMODEL_IMAGECONTROL, FRM_SUN_CONTROL_IMAGECONTROL, false, false, false )
                    // use the old control name for compytibility reasons
    ,m_bExternalGraphic( true )
    ,m_bReadOnly( false )
{
    m_nClassId = FormComponentType::IMAGECONTROL;
    initOwnValueProperty( PROPERTY_IMAGE_URL );

    implConstruct();
}


OImageControlModel::OImageControlModel( const OImageControlModel* _pOriginal, const Reference< XComponentContext >& _rxFactory )
    :OBoundControlModel( _pOriginal, _rxFactory )
                // use the old control name for compytibility reasons
    ,m_bExternalGraphic( true )
    ,m_bReadOnly( _pOriginal->m_bReadOnly )
    ,m_sImageURL( _pOriginal->m_sImageURL )
    ,m_xGraphicObject( _pOriginal->m_xGraphicObject )
{
    implConstruct();

    osl_atomic_increment( &m_refCount );
    {
        // simulate a propertyChanged event for the ImageURL
        ::osl::MutexGuard aGuard( m_aMutex );
        impl_handleNewImageURL_lck( eOther );
    }
    osl_atomic_decrement( &m_refCount );
}


void OImageControlModel::implConstruct()
{
    m_xImageProducer = new ImageProducer;
    m_xImageProducer->SetDoneHdl( LINK( this, OImageControlModel, OnImageImportDone ) );
}


OImageControlModel::~OImageControlModel()
{
    if (!OComponentHelper::rBHelper.bDisposed)
    {
        acquire();
        dispose();
    }

}

// XCloneable

css::uno::Reference< css::util::XCloneable > SAL_CALL OImageControlModel::createClone()
{
    rtl::Reference<OImageControlModel> pClone = new OImageControlModel(this, getContext());
    pClone->clonedFrom(this);
    return pClone;
}

// XServiceInfo

css::uno::Sequence<OUString>  OImageControlModel::getSupportedServiceNames()
{
    css::uno::Sequence<OUString> aSupported = OBoundControlModel::getSupportedServiceNames();
    aSupported.realloc(aSupported.getLength() + 2);

    OUString*pArray = aSupported.getArray();
    pArray[aSupported.getLength()-2] = FRM_SUN_COMPONENT_IMAGECONTROL;
    pArray[aSupported.getLength()-1] = FRM_COMPONENT_IMAGECONTROL;
    return aSupported;
}


Any SAL_CALL OImageControlModel::queryAggregation(const Type& _rType)
{
    // Order matters: we want to "override" the XImageProducer interface of the aggregate without
    // own XImageProducer interface, thus we need to query OImageControlModel_Base first
    Any aReturn = OImageControlModel_Base::queryInterface( _rType );

    // BUT: _don't_ let it feel responsible for the XTypeProvider interface
    // (as this is implemented by our base class in the proper way)
    if  (   _rType.equals( cppu::UnoType<XTypeProvider>::get() )
        ||  !aReturn.hasValue()
        )
        aReturn = OBoundControlModel::queryAggregation( _rType );

    return aReturn;
}


bool OImageControlModel::approveDbColumnType( sal_Int32 _nColumnType )
{
    return ImageStoreInvalid != lcl_getImageStoreType( _nColumnType );
}


void OImageControlModel::getFastPropertyValue(Any& rValue, sal_Int32 nHandle) const
{
    switch (nHandle)
    {
        case PROPERTY_ID_READONLY:
            rValue <<= m_bReadOnly;
            break;
        case PROPERTY_ID_IMAGE_URL:
            rValue <<= m_sImageURL;
            break;
        case PROPERTY_ID_GRAPHIC:
            rValue <<= m_xGraphicObject.is() ? m_xGraphicObject->getGraphic() : Reference< XGraphic >();
            break;
        default:
            OBoundControlModel::getFastPropertyValue(rValue, nHandle);
    }
}


void OImageControlModel::setFastPropertyValue_NoBroadcast(sal_Int32 nHandle, const Any& rValue)
{
    switch (nHandle)
    {
        case PROPERTY_ID_READONLY :
            DBG_ASSERT(rValue.getValueType().getTypeClass() == TypeClass_BOOLEAN, "OImageControlModel::setFastPropertyValue_NoBroadcast : invalid type !" );
            m_bReadOnly = getBOOL(rValue);
            break;

        case PROPERTY_ID_IMAGE_URL:
            OSL_VERIFY( rValue >>= m_sImageURL );
            impl_handleNewImageURL_lck( eOther );
            {
                ControlModelLock aLock( *this );
                    // that's a fake ... onValuePropertyChange expects to receive the only lock to our instance,
                    // but we're already called with our mutex locked ...
                onValuePropertyChange( aLock );
            }
            break;

        case PROPERTY_ID_GRAPHIC:
        {
            Reference< XGraphic > xGraphic;
            OSL_VERIFY( rValue >>= xGraphic );
            if ( !xGraphic.is() )
                m_xGraphicObject.clear();
            else
            {
                m_xGraphicObject = graphic::GraphicObject::create( m_xContext );
                m_xGraphicObject->setGraphic( xGraphic );
            }

            if ( m_bExternalGraphic )
            {
                m_sImageURL = OUString();
                // TODO: speaking strictly, this would need to be notified, since ImageURL is a bound property. However,
                // this method here is called with a locked mutex, so we cannot simply call listeners ...
                // I think the missing notification (and thus clients which potentially cannot observe the change)
                // is less severe than the potential deadlock ...
            }
        }
        break;

        default:
            OBoundControlModel::setFastPropertyValue_NoBroadcast(nHandle, rValue);
            break;
    }
}


sal_Bool OImageControlModel::convertFastPropertyValue(Any& rConvertedValue, Any& rOldValue, sal_Int32 nHandle, const Any& rValue)
{
    switch (nHandle)
    {
        case PROPERTY_ID_READONLY :
            return tryPropertyValue(rConvertedValue, rOldValue, rValue, m_bReadOnly);

        case PROPERTY_ID_IMAGE_URL:
            return tryPropertyValue( rConvertedValue, rOldValue, rValue, m_sImageURL );

        case PROPERTY_ID_GRAPHIC:
        {
            const Reference< XGraphic > xGraphic( getFastPropertyValue( PROPERTY_ID_GRAPHIC ), UNO_QUERY );
            return tryPropertyValue( rConvertedValue, rOldValue, rValue, xGraphic );
        }

        default:
            return OBoundControlModel::convertFastPropertyValue(rConvertedValue, rOldValue, nHandle, rValue);
    }
}


void OImageControlModel::describeFixedProperties( Sequence< Property >& _rProps ) const
{
    OBoundControlModel::describeFixedProperties( _rProps );
    sal_Int32 nOldCount = _rProps.getLength();
    _rProps.realloc( nOldCount + 4);
    css::beans::Property* pProperties = _rProps.getArray() + nOldCount;
    *pProperties++ = css::beans::Property(PROPERTY_GRAPHIC, PROPERTY_ID_GRAPHIC, cppu::UnoType<XGraphic>::get(),
                                          css::beans::PropertyAttribute::BOUND | css::beans::PropertyAttribute::TRANSIENT);
    *pProperties++ = css::beans::Property(PROPERTY_IMAGE_URL, PROPERTY_ID_IMAGE_URL, cppu::UnoType<OUString>::get(), css::beans::PropertyAttribute::BOUND);
    *pProperties++ = css::beans::Property(PROPERTY_READONLY, PROPERTY_ID_READONLY, cppu::UnoType<bool>::get(),
                                          css::beans::PropertyAttribute::BOUND);
    *pProperties++ = css::beans::Property(PROPERTY_TABINDEX, PROPERTY_ID_TABINDEX, cppu::UnoType<sal_Int16>::get(), css::beans::PropertyAttribute::BOUND);
    DBG_ASSERT( pProperties == _rProps.getArray() + _rProps.getLength(), "<...>::describeFixedProperties/getInfoHelper: forgot to adjust the count ?");
}


void OImageControlModel::describeAggregateProperties( Sequence< Property >& /* [out] */ o_rAggregateProperties ) const
{
    OBoundControlModel::describeAggregateProperties( o_rAggregateProperties );
    // remove ImageURL and Graphic properties, we "override" them.
    // This is because our aggregate synchronizes those
    // two, but we have an own synchronization mechanism.
    RemoveProperty( o_rAggregateProperties, PROPERTY_IMAGE_URL );
    RemoveProperty( o_rAggregateProperties, PROPERTY_GRAPHIC );
}


OUString OImageControlModel::getServiceName()
{
    return FRM_COMPONENT_IMAGECONTROL;  // old (non-sun) name for compatibility !
}


void OImageControlModel::write(const Reference<XObjectOutputStream>& _rxOutStream)
{
    // Base class
    OBoundControlModel::write(_rxOutStream);
    // Version
    _rxOutStream->writeShort(0x0003);
    // Name
    _rxOutStream->writeBoolean(m_bReadOnly);
    writeHelpTextCompatibly(_rxOutStream);
    // from version 0x0003 : common properties
    writeCommonProperties(_rxOutStream);
}


void OImageControlModel::read(const Reference<XObjectInputStream>& _rxInStream)
{
    OBoundControlModel::read(_rxInStream);

    // Version
    sal_uInt16 nVersion = _rxInStream->readShort();
    switch (nVersion)
    {
        case 0x0001:
            m_bReadOnly = _rxInStream->readBoolean();
            break;
        case 0x0002:
            m_bReadOnly = _rxInStream->readBoolean();
            readHelpTextCompatibly(_rxInStream);
            break;
        case 0x0003:
            m_bReadOnly = _rxInStream->readBoolean();
            readHelpTextCompatibly(_rxInStream);
            readCommonProperties(_rxInStream);
            break;
        default :
            OSL_FAIL("OImageControlModel::read : unknown version !");
            m_bReadOnly = false;
            defaultCommonProperties();
            break;
    }
    // Display default values after read
    if ( !getControlSource().isEmpty() )
    {   // (not if we don't have a control source - the "State" property acts like it is persistent, then
        ::osl::MutexGuard aGuard(m_aMutex); // resetNoBroadcast expects this mutex guarding
        resetNoBroadcast();
    }
}


bool OImageControlModel::impl_updateStreamForURL_lck( const OUString& _rURL, ValueChangeInstigator _eInstigator )
{
    // create a stream for the image specified by the URL
    std::unique_ptr< SvStream > pImageStream;
    Reference< XInputStream > xImageStream;

    if ( ::svt::GraphicAccess::isSupportedURL( _rURL ) )
    {
        xImageStream = ::svt::GraphicAccess::getImageXStream( getContext(), _rURL );
    }
    else
    {
        pImageStream = ::utl::UcbStreamHelper::CreateStream( _rURL, StreamMode::READ );
        bool bSetNull = (pImageStream == nullptr) || (ERRCODE_NONE != pImageStream->GetErrorCode());

        if ( !bSetNull )
        {
            // get the size of the stream
            sal_uInt64 const nSize = pImageStream->remainingSize();
            if (pImageStream->GetBufferSize() < 8192)
                pImageStream->SetBufferSize(8192);
            pImageStream->Seek(STREAM_SEEK_TO_BEGIN);

            xImageStream = new ::utl::OInputStreamHelper( new SvLockBytes( pImageStream.get(), false ), nSize );
        }
    }

    if ( xImageStream.is() )
    {
        if ( m_xColumnUpdate.is() )
            m_xColumnUpdate->updateBinaryStream( xImageStream, xImageStream->available() );
        else
            setControlValue( Any( xImageStream ), _eInstigator );
        xImageStream->closeInput();
        return true;
    }

    return false;
}


void OImageControlModel::impl_handleNewImageURL_lck( ValueChangeInstigator _eInstigator )
{
    switch ( lcl_getImageStoreType( getFieldType() ) )
    {
    case ImageStoreBinary:
        if ( impl_updateStreamForURL_lck( m_sImageURL, _eInstigator ) )
            return;
        break;

    case ImageStoreLink:
    {
        OUString sCommitURL( m_sImageURL );
        if ( !m_sDocumentURL.isEmpty() )
            sCommitURL = URIHelper::simpleNormalizedMakeRelative( m_sDocumentURL, sCommitURL );
        OSL_ENSURE( m_xColumnUpdate.is(), "OImageControlModel::impl_handleNewImageURL_lck: no bound field, but ImageStoreLink?!" );
        if ( m_xColumnUpdate.is() )
        {
            m_xColumnUpdate->updateString( sCommitURL );
            return;
        }
    }
    break;

    case ImageStoreInvalid:
        OSL_FAIL( "OImageControlModel::impl_handleNewImageURL_lck: image storage type type!" );
        break;
    }

    // if we're here, then the above code was unable to update our field/control from the given URL
    // => fall back to NULL/VOID
    if ( m_xColumnUpdate.is() )
        m_xColumnUpdate->updateNull();
    else
        setControlValue( Any(), _eInstigator );
}


bool OImageControlModel::commitControlValueToDbColumn( bool _bPostReset )
{
    if ( _bPostReset )
    {
        // since this is a "commit after reset", we can simply update the column
        // with null - this is our "default" which we were just reset to
        if ( m_xColumnUpdate.is() )
            m_xColumnUpdate->updateNull();
    }
    else
    {
        ::osl::MutexGuard aGuard(m_aMutex);
        impl_handleNewImageURL_lck( eDbColumnBinding );
    }

    return true;
}


namespace
{
    bool lcl_isValidDocumentURL( std::u16string_view _rDocURL )
    {
        return ( !_rDocURL.empty() && _rDocURL != u"private:object" );
    }
}


void OImageControlModel::onConnectedDbColumn( const Reference< XInterface >& _rxForm )
{
    OBoundControlModel::onConnectedDbColumn( _rxForm );

    try
    {
        Reference< XModel > xDocument( getXModel( *this ) );
        if ( xDocument.is() )
        {
            m_sDocumentURL = xDocument->getURL();
            if ( !lcl_isValidDocumentURL( m_sDocumentURL ) )
            {
                Reference< XChild > xAsChild( xDocument, UNO_QUERY );
                while ( xAsChild.is() && !lcl_isValidDocumentURL( m_sDocumentURL ) )
                {
                    xDocument.set( xAsChild->getParent(), UNO_QUERY );
                    if ( xDocument.is() )
                        m_sDocumentURL = xDocument->getURL();
                    xAsChild.set( xDocument, UNO_QUERY );
                }
            }
        }
    }
    catch( const Exception& )
    {
        DBG_UNHANDLED_EXCEPTION("forms.component");
    }
}


void OImageControlModel::onDisconnectedDbColumn()
{
    OBoundControlModel::onDisconnectedDbColumn();

    m_sDocumentURL.clear();
}


Any OImageControlModel::translateDbColumnToControlValue()
{
    switch ( lcl_getImageStoreType( getFieldType() ) )
    {
    case ImageStoreBinary:
    {
        Reference< XInputStream > xImageStream( m_xColumn->getBinaryStream() );
        if ( m_xColumn->wasNull() )
            xImageStream.clear();
        return Any( xImageStream );
    }
    case ImageStoreLink:
    {
        OUString sImageLink( m_xColumn->getString() );
        if ( !m_sDocumentURL.isEmpty() )
            sImageLink = INetURLObject::GetAbsURL( m_sDocumentURL, sImageLink );
        return Any( sImageLink );
    }
    case ImageStoreInvalid:
        OSL_FAIL( "OImageControlModel::translateDbColumnToControlValue: invalid field type!" );
        break;
    }
    return Any();
}


Any OImageControlModel::getControlValue( ) const
{
    return Any( m_sImageURL );
}


void OImageControlModel::doSetControlValue( const Any& _rValue )
{
    DBG_ASSERT( GetImageProducer() && m_xImageProducer.is(), "OImageControlModel::doSetControlValue: no image producer!" );
    if ( !GetImageProducer() || !m_xImageProducer.is() )
        return;

    bool bStartProduction = false;
    switch ( lcl_getImageStoreType( getFieldType() ) )
    {
    case ImageStoreBinary:
    {
        // give the image producer the stream
        Reference< XInputStream > xInStream;
        _rValue >>= xInStream;
        GetImageProducer()->setImage( xInStream );
        bStartProduction = true;
    }
    break;

    case ImageStoreLink:
    {
        OUString sImageURL;
        _rValue >>= sImageURL;
        GetImageProducer()->SetImage( sImageURL );
        bStartProduction = true;
    }
    break;

    case ImageStoreInvalid:
        OSL_FAIL( "OImageControlModel::doSetControlValue: invalid field type!" );
        break;

    }   // switch ( lcl_getImageStoreType( getFieldType() ) )

    if ( bStartProduction )
    {
        // start production
        rtl::Reference< ImageProducer > xProducer = m_xImageProducer;
        {
            // release our mutex once (it's acquired in the calling method!), as starting the image production may
            // result in the locking of the solar mutex (unfortunately the default implementation of our aggregate,
            // VCLXImageControl, does this locking)
            MutexRelease aRelease(m_aMutex);
            xProducer->startProduction();
        }
    }
}

void OImageControlModel::resetNoBroadcast()
{
    if ( hasField() )          // only reset when we are connected to a column
        OBoundControlModel::resetNoBroadcast( );
}


Reference< XImageProducer > SAL_CALL OImageControlModel::getImageProducer()
{
    return this;
}


void SAL_CALL OImageControlModel::addConsumer( const Reference< XImageConsumer >& _rxConsumer )
{
    GetImageProducer()->addConsumer( _rxConsumer );
}


void SAL_CALL OImageControlModel::removeConsumer( const Reference< XImageConsumer >& _rxConsumer )
{
    GetImageProducer()->removeConsumer( _rxConsumer );
}


void SAL_CALL OImageControlModel::startProduction(  )
{
    GetImageProducer()->startProduction();
}


IMPL_LINK( OImageControlModel, OnImageImportDone, ::Graphic*, i_pGraphic, void )
{
    const Reference< XGraphic > xGraphic(i_pGraphic != nullptr ? i_pGraphic->GetXGraphic() : nullptr);
    m_bExternalGraphic = false;
    try
    {
        setPropertyValue( PROPERTY_GRAPHIC, Any( xGraphic ) );
    }
    catch ( const Exception& )
    {
        DBG_UNHANDLED_EXCEPTION("forms.component");
    }
    m_bExternalGraphic = true;
}


// OImageControlControl

Sequence<Type> OImageControlControl::_getTypes()
{
    return concatSequences(
        OBoundControl::_getTypes(),
        OImageControlControl_Base::getTypes()
    );
}


OImageControlControl::OImageControlControl(const Reference<XComponentContext>& _rxFactory)
    :OBoundControl(_rxFactory, VCL_CONTROL_IMAGECONTROL)
    ,m_aModifyListeners( m_aMutex )
{
    osl_atomic_increment(&m_refCount);
    {
        // Add as Focus- and MouseListener
        Reference< XWindow > xComp;
        query_aggregation( m_xAggregate, xComp );
        if ( xComp.is() )
            xComp->addMouseListener( this );
    }
    osl_atomic_decrement(&m_refCount);
}


Any SAL_CALL OImageControlControl::queryAggregation(const Type& _rType)
{
    Any aReturn = OBoundControl::queryAggregation( _rType );
    if ( !aReturn.hasValue() )
        aReturn = ::cppu::queryInterface(
            _rType,
            static_cast< XMouseListener* >( this ),
            static_cast< XModifyBroadcaster* >( this )
        );

    return aReturn;
}


css::uno::Sequence<OUString>  OImageControlControl::getSupportedServiceNames()
{
    css::uno::Sequence<OUString> aSupported = OBoundControl::getSupportedServiceNames();
    aSupported.realloc(aSupported.getLength() + 2);

    OUString*pArray = aSupported.getArray();
    pArray[aSupported.getLength()-2] = FRM_SUN_CONTROL_IMAGECONTROL;
    pArray[aSupported.getLength()-1] = STARDIV_ONE_FORM_CONTROL_IMAGECONTROL;
    return aSupported;
}


void SAL_CALL OImageControlControl::addModifyListener( const Reference< XModifyListener >& Listener )
{
    m_aModifyListeners.addInterface( Listener );
}


void SAL_CALL OImageControlControl::removeModifyListener( const Reference< XModifyListener >& Listener )
{
    m_aModifyListeners.removeInterface( Listener );
}


void SAL_CALL OImageControlControl::disposing()
{
    EventObject aEvent( *this );
    m_aModifyListeners.disposeAndClear( aEvent );

    OBoundControl::disposing();
}


void SAL_CALL OImageControlControl::disposing( const EventObject& Event )
{
    OBoundControl::disposing( Event );
}


void OImageControlControl::implClearGraphics( bool _bForce )
{
    Reference< XPropertySet > xSet( getModel(), UNO_QUERY );
    if ( !xSet.is() )
        return;

    if ( _bForce )
    {
        OUString sOldImageURL;
        xSet->getPropertyValue( PROPERTY_IMAGE_URL ) >>= sOldImageURL;

        if ( sOldImageURL.isEmpty() )
            // the ImageURL is already empty, so simply setting a new empty one would not suffice
            // (since it would be ignored)
            xSet->setPropertyValue( PROPERTY_IMAGE_URL, Any( OUString( "private:emptyImage" ) ) );
                // (the concrete URL we're passing here doesn't matter. It's important that
                // the model cannot resolve it to a valid resource describing an image stream
    }

    xSet->setPropertyValue( PROPERTY_IMAGE_URL, Any( OUString() ) );
}


bool OImageControlControl::implInsertGraphics()
{
    Reference< XPropertySet > xSet( getModel(), UNO_QUERY );
    if ( !xSet.is() )
        return false;

    OUString sTitle = ResourceManager::loadString(RID_STR_IMPORT_GRAPHIC);
    // build some arguments for the upcoming dialog
    try
    {
        Reference< XWindow > xWindow( static_cast< ::cppu::OWeakObject* >( this ), UNO_QUERY );
        ::sfx2::FileDialogHelper aDialog(TemplateDescription::FILEOPEN_LINK_PREVIEW, FileDialogFlags::Graphic,
                                         Application::GetFrameWeld(xWindow));
        aDialog.SetContext(sfx2::FileDialogHelper::FormsInsertImage);
        aDialog.SetTitle( sTitle );

        Reference< XFilePickerControlAccess > xController( aDialog.GetFilePicker(), UNO_QUERY_THROW );
        xController->setValue(ExtendedFilePickerElementIds::CHECKBOX_PREVIEW, 0, css::uno::Any(true));

        Reference<XPropertySet> xBoundField;
        if ( hasProperty( PROPERTY_BOUNDFIELD, xSet ) )
            xSet->getPropertyValue( PROPERTY_BOUNDFIELD ) >>= xBoundField;
        bool bHasField = xBoundField.is();

        // if the control is bound to a DB field, then it's not possible to decide whether or not to link
        xController->enableControl(ExtendedFilePickerElementIds::CHECKBOX_LINK, !bHasField );

        // if the control is bound to a DB field, then linking of the image depends on the type of the field
        bool bImageIsLinked = true;
        if ( bHasField )
        {
            sal_Int32 nFieldType = DataType::OTHER;
            OSL_VERIFY( xBoundField->getPropertyValue( PROPERTY_FIELDTYPE ) >>= nFieldType );
            bImageIsLinked = ( lcl_getImageStoreType( nFieldType ) == ImageStoreLink );
        }
        xController->setValue(ExtendedFilePickerElementIds::CHECKBOX_LINK, 0, Any( bImageIsLinked ) );

        if ( ERRCODE_NONE == aDialog.Execute() )
        {
            // reset the url property in case it already has the value we're about to set - in this case
            // our propertyChanged would not get called without this.
            implClearGraphics( false );
            bool bIsLink = false;
            xController->getValue(ExtendedFilePickerElementIds::CHECKBOX_LINK, 0) >>= bIsLink;
            // Force bIsLink to be sal_True if we're bound to a field. Though we initialized the file picker with IsLink=TRUE
            // in this case, and disabled the respective control, there might be picker implementations which do not
            // respect this, and return IsLink=FALSE here. In this case, "normalize" the flag.
            // #i112659#
            bIsLink |= bHasField;
            if ( !bIsLink )
            {
                Graphic aGraphic;
                aDialog.GetGraphic( aGraphic );
                xSet->setPropertyValue( PROPERTY_GRAPHIC, Any( aGraphic.GetXGraphic() ) );
            }
            else
                xSet->setPropertyValue( PROPERTY_IMAGE_URL, Any( aDialog.GetPath() ) );

            return true;
        }
    }
    catch(const Exception&)
    {
        TOOLS_WARN_EXCEPTION( "forms.component", "OImageControlControl::implInsertGraphics: caught an exception while attempting to execute the FilePicker!");
    }
    return false;
}


bool OImageControlControl::impl_isEmptyGraphics_nothrow() const
{
    bool bIsEmpty = true;

    try
    {
        Reference< XPropertySet > xModelProps( const_cast< OImageControlControl* >( this )->getModel(), UNO_QUERY_THROW );
        Reference< XGraphic > xGraphic;
        OSL_VERIFY( xModelProps->getPropertyValue("Graphic") >>= xGraphic );
        bIsEmpty = !xGraphic.is();
    }
    catch( const Exception& )
    {
        DBG_UNHANDLED_EXCEPTION("forms.component");
    }

    return bIsEmpty;
}

// MouseListener

void OImageControlControl::mousePressed(const css::awt::MouseEvent& e)
{
    SolarMutexGuard aGuard;

    if (e.Buttons != MouseButton::LEFT)
        return;

    bool bModified = false;
    // is this a request for a context menu?
    if ( e.PopupTrigger )
    {
        Reference< XPopupMenu > xMenu( awt::PopupMenu::create( m_xContext ) );
        DBG_ASSERT( xMenu.is(), "OImageControlControl::mousePressed: could not create a popup menu!" );

        Reference< XWindowPeer > xWindowPeer = getPeer();
        DBG_ASSERT( xWindowPeer.is(), "OImageControlControl::mousePressed: no window!" );

        if ( xMenu.is() && xWindowPeer.is() )
        {
            xMenu->insertItem( ID_OPEN_GRAPHICS, ResourceManager::loadString(RID_STR_OPEN_GRAPHICS), 0, 0 );
            xMenu->insertItem( ID_CLEAR_GRAPHICS, ResourceManager::loadString(RID_STR_CLEAR_GRAPHICS), 0, 1 );

            // check if the ImageURL is empty
            if ( impl_isEmptyGraphics_nothrow() )
                xMenu->enableItem( ID_CLEAR_GRAPHICS, false );

            awt::Rectangle aRect( e.X, e.Y, 0, 0 );
            if ( ( e.X < 0 ) || ( e.Y < 0 ) )
            {   // context menu triggered by keyboard
                // position it in the center of the control
                Reference< XWindow > xWindow( static_cast< ::cppu::OWeakObject* >( this ), UNO_QUERY );
                OSL_ENSURE( xWindow.is(), "OImageControlControl::mousePressed: me not a window? How this?" );
                if ( xWindow.is() )
                {
                    awt::Rectangle aPosSize = xWindow->getPosSize();
                    aRect.X = aPosSize.Width / 2;
                    aRect.Y = aPosSize.Height / 2;
                }
            }

            const sal_Int16 nResult = xMenu->execute( xWindowPeer, aRect, PopupMenuDirection::EXECUTE_DEFAULT );

            switch ( nResult )
            {
            case ID_OPEN_GRAPHICS:
                implInsertGraphics();
                bModified = true;
                break;

            case ID_CLEAR_GRAPHICS:
                implClearGraphics( true );
                bModified = true;
                break;
            }
        }
    }
    else
    {

        // Double click
        if (e.ClickCount == 2)
        {

            Reference<XPropertySet>  xSet(getModel(), UNO_QUERY);
            if (!xSet.is())
                return;

            // If the Control is not bound, do not display a dialog (because the to-be-sent URL would be invalid anyway)
            Reference<XPropertySet> xBoundField;
            if (hasProperty(PROPERTY_BOUNDFIELD, xSet))
                xBoundField.set(
                    xSet->getPropertyValue(PROPERTY_BOUNDFIELD),
                    css::uno::UNO_QUERY);
            if (!xBoundField.is())
            {
                // but only if our IMAGE_URL property is handled as if it is transient, which is equivalent to
                // an empty control source
                if ( !hasProperty(PROPERTY_CONTROLSOURCE, xSet) || !::comphelper::getString(xSet->getPropertyValue(PROPERTY_CONTROLSOURCE)).isEmpty() )
                    return;
            }

            bool bReadOnly = false;
            xSet->getPropertyValue(PROPERTY_READONLY) >>= bReadOnly;
            if (bReadOnly)
                return;

            if ( implInsertGraphics() )
                bModified = true;
        }
    }

    if ( bModified )
    {
        EventObject aEvent( *this );
        m_aModifyListeners.notifyEach( &XModifyListener::modified, aEvent );
    }
}


void SAL_CALL OImageControlControl::mouseReleased(const awt::MouseEvent& /*e*/)
{
}


void SAL_CALL OImageControlControl::mouseEntered(const awt::MouseEvent& /*e*/)
{
}


void SAL_CALL OImageControlControl::mouseExited(const awt::MouseEvent& /*e*/)
{
}

}   // namespace frm

extern "C" SAL_DLLPUBLIC_EXPORT css::uno::XInterface*
com_sun_star_form_OImageControlModel_get_implementation(css::uno::XComponentContext* component,
        css::uno::Sequence<css::uno::Any> const &)
{
    return cppu::acquire(new frm::OImageControlModel(component));
}

extern "C" SAL_DLLPUBLIC_EXPORT css::uno::XInterface*
com_sun_star_form_OImageControlControl_get_implementation(css::uno::XComponentContext* component,
        css::uno::Sequence<css::uno::Any> const &)
{
    return cppu::acquire(new frm::OImageControlControl(component));
}

/* vim:set shiftwidth=4 softtabstop=4 expandtab: */