summaryrefslogtreecommitdiff
path: root/sd/source/ui/presenter/PresenterPreviewCache.cxx
blob: fcc2e925c64ac737c7a08a185270e69257a650c3 (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
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*************************************************************************
 *
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * Copyright 2000, 2010 Oracle and/or its affiliates.
 *
 * OpenOffice.org - a multi-platform office productivity suite
 *
 * This file is part of OpenOffice.org.
 *
 * OpenOffice.org is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License version 3
 * only, as published by the Free Software Foundation.
 *
 * OpenOffice.org is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Lesser General Public License version 3 for more details
 * (a copy is included in the LICENSE file that accompanied this code).
 *
 * You should have received a copy of the GNU Lesser General Public License
 * version 3 along with OpenOffice.org.  If not, see
 * <http://www.openoffice.org/license.html>
 * for a copy of the LGPLv3 License.
 *
 ************************************************************************/


#include "PresenterPreviewCache.hxx"

#include "cache/SlsCacheContext.hxx"
#include "tools/IdleDetection.hxx"
#include "sdpage.hxx"
#include <cppcanvas/vclfactory.hxx>
#include <com/sun/star/drawing/XDrawPage.hpp>
#include <com/sun/star/rendering/XBitmapCanvas.hpp>

using namespace ::com::sun::star;
using namespace ::com::sun::star::uno;
using namespace ::sd::slidesorter::cache;
using ::rtl::OUString;

namespace sd { namespace presenter {


class PresenterPreviewCache::PresenterCacheContext : public CacheContext
{
public:
    PresenterCacheContext (void);
    virtual ~PresenterCacheContext (void);

    void SetDocumentSlides (
        const Reference<container::XIndexAccess>& rxSlides,
        const Reference<XInterface>& rxDocument);
    void SetVisibleSlideRange (
        const sal_Int32 nFirstVisibleSlideIndex,
        const sal_Int32 nLastVisibleSlideIndex);
    const SdrPage* GetPage (const sal_Int32 nSlideIndex) const;
    void AddPreviewCreationNotifyListener (const Reference<drawing::XSlidePreviewCacheListener>& rxListener);
    void RemovePreviewCreationNotifyListener (const Reference<drawing::XSlidePreviewCacheListener>& rxListener);

    // CacheContext
    virtual void NotifyPreviewCreation (
        CacheKey aKey,
        const Bitmap& rPreview);
    virtual bool IsIdle (void);
    virtual bool IsVisible (CacheKey aKey);
    virtual const SdrPage* GetPage (CacheKey aKey);
    virtual ::boost::shared_ptr<std::vector<CacheKey> > GetEntryList (bool bVisible);
    virtual sal_Int32 GetPriority (CacheKey aKey);
    virtual ::com::sun::star::uno::Reference<com::sun::star::uno::XInterface> GetModel (void);

private:
    Reference<container::XIndexAccess> mxSlides;
    Reference<XInterface> mxDocument;
    sal_Int32 mnFirstVisibleSlideIndex;
    sal_Int32 mnLastVisibleSlideIndex;
    typedef ::std::vector<css::uno::Reference<css::drawing::XSlidePreviewCacheListener> > ListenerContainer;
    ListenerContainer maListeners;

    void CallListeners (const sal_Int32 nSlideIndex);
};




//===== Service ===============================================================

Reference<XInterface> SAL_CALL PresenterPreviewCache_createInstance (
    const Reference<XComponentContext>& rxContext)
{
    return Reference<XInterface>(static_cast<XWeak*>(new PresenterPreviewCache(rxContext)));
}




::rtl::OUString PresenterPreviewCache_getImplementationName (void) throw(RuntimeException)
{
    return OUString(RTL_CONSTASCII_USTRINGPARAM("com.sun.star.comp.Draw.PresenterPreviewCache"));
}




Sequence<rtl::OUString> SAL_CALL PresenterPreviewCache_getSupportedServiceNames (void)
    throw (RuntimeException)
{
    static const ::rtl::OUString sServiceName(
        ::rtl::OUString(RTL_CONSTASCII_USTRINGPARAM("com.sun.star.drawing.PresenterPreviewCache")));
    return Sequence<rtl::OUString>(&sServiceName, 1);
}




//===== PresenterPreviewCache =================================================

PresenterPreviewCache::PresenterPreviewCache (const Reference<XComponentContext>& rxContext)
    : PresenterPreviewCacheInterfaceBase(m_aMutex),
      maPreviewSize(Size(200,200)),
      mpCacheContext(new PresenterCacheContext()),
      mpCache(new PageCache(maPreviewSize, false, mpCacheContext))
{
    (void)rxContext;
}




PresenterPreviewCache::~PresenterPreviewCache (void)
{
}




//----- XInitialize -----------------------------------------------------------

void SAL_CALL PresenterPreviewCache::initialize (const Sequence<Any>& rArguments)
    throw(Exception, RuntimeException)
{
    if (rArguments.getLength() != 0)
        throw RuntimeException();
}




//----- XSlidePreviewCache ----------------------------------------------------

void SAL_CALL PresenterPreviewCache::setDocumentSlides (
    const Reference<container::XIndexAccess>& rxSlides,
    const Reference<XInterface>& rxDocument)
    throw (RuntimeException)
{
    ThrowIfDisposed();
    OSL_ASSERT(mpCacheContext.get()!=NULL);

    mpCacheContext->SetDocumentSlides(rxSlides, rxDocument);
}




void SAL_CALL PresenterPreviewCache::setVisibleRange (
    sal_Int32 nFirstVisibleSlideIndex,
    sal_Int32 nLastVisibleSlideIndex)
    throw (css::uno::RuntimeException)
{
    ThrowIfDisposed();
    OSL_ASSERT(mpCacheContext.get()!=NULL);

    mpCacheContext->SetVisibleSlideRange (nFirstVisibleSlideIndex, nLastVisibleSlideIndex);
}




void SAL_CALL PresenterPreviewCache::setPreviewSize (
    const css::geometry::IntegerSize2D& rSize)
    throw (css::uno::RuntimeException)
{
    ThrowIfDisposed();
    OSL_ASSERT(mpCache.get()!=NULL);

    maPreviewSize = Size(rSize.Width, rSize.Height);
    mpCache->ChangeSize(maPreviewSize, false);
}




Reference<rendering::XBitmap> SAL_CALL PresenterPreviewCache::getSlidePreview (
    sal_Int32 nSlideIndex,
    const Reference<rendering::XCanvas>& rxCanvas)
    throw (css::uno::RuntimeException)
{
    ThrowIfDisposed();
    OSL_ASSERT(mpCacheContext.get()!=NULL);

    cppcanvas::BitmapCanvasSharedPtr pCanvas (
        cppcanvas::VCLFactory::getInstance().createCanvas(
            Reference<rendering::XBitmapCanvas>(rxCanvas, UNO_QUERY)));

    const SdrPage* pPage = mpCacheContext->GetPage(nSlideIndex);
    if (pPage == NULL)
        throw RuntimeException();

    const BitmapEx aPreview (mpCache->GetPreviewBitmap(pPage,true));
    if (aPreview.IsEmpty())
        return NULL;
    else
        return cppcanvas::VCLFactory::getInstance().createBitmap(
            pCanvas,
            aPreview)->getUNOBitmap();
}




void SAL_CALL PresenterPreviewCache::addPreviewCreationNotifyListener (
    const Reference<drawing::XSlidePreviewCacheListener>& rxListener)
    throw (css::uno::RuntimeException)
{
    if (rBHelper.bDisposed || rBHelper.bInDispose)
        return;
    if (rxListener.is())
        mpCacheContext->AddPreviewCreationNotifyListener(rxListener);
}




void SAL_CALL PresenterPreviewCache::removePreviewCreationNotifyListener (
    const css::uno::Reference<css::drawing::XSlidePreviewCacheListener>& rxListener)
    throw (css::uno::RuntimeException)
{
    ThrowIfDisposed();
    mpCacheContext->RemovePreviewCreationNotifyListener(rxListener);
}




void SAL_CALL PresenterPreviewCache::pause (void)
    throw (css::uno::RuntimeException)
{
    ThrowIfDisposed();
    OSL_ASSERT(mpCache.get()!=NULL);
    mpCache->Pause();
}




void SAL_CALL PresenterPreviewCache::resume (void)
    throw (css::uno::RuntimeException)
{
    ThrowIfDisposed();
    OSL_ASSERT(mpCache.get()!=NULL);
    mpCache->Resume();
}




//-----------------------------------------------------------------------------

void PresenterPreviewCache::ThrowIfDisposed (void)
    throw (::com::sun::star::lang::DisposedException)
{
    if (rBHelper.bDisposed || rBHelper.bInDispose)
    {
        throw lang::DisposedException (
            ::rtl::OUString(RTL_CONSTASCII_USTRINGPARAM(
                "PresenterPreviewCache object has already been disposed")),
            static_cast<uno::XWeak*>(this));
    }
}




//===== PresenterPreviewCache::PresenterCacheContext ==========================


PresenterPreviewCache::PresenterCacheContext::PresenterCacheContext (void)
    : mxSlides(),
      mxDocument(),
      mnFirstVisibleSlideIndex(-1),
      mnLastVisibleSlideIndex(-1),
      maListeners()
{
}




PresenterPreviewCache::PresenterCacheContext::~PresenterCacheContext (void)
{
}




void PresenterPreviewCache::PresenterCacheContext::SetDocumentSlides (
    const Reference<container::XIndexAccess>& rxSlides,
    const Reference<XInterface>& rxDocument)
{
    mxSlides = rxSlides;
    mxDocument = rxDocument;
    mnFirstVisibleSlideIndex = -1;
    mnLastVisibleSlideIndex = -1;
}




void PresenterPreviewCache::PresenterCacheContext::SetVisibleSlideRange (
    const sal_Int32 nFirstVisibleSlideIndex,
    const sal_Int32 nLastVisibleSlideIndex)
{
    if (nFirstVisibleSlideIndex > nLastVisibleSlideIndex || nFirstVisibleSlideIndex<0)
    {
        mnFirstVisibleSlideIndex = -1;
        mnLastVisibleSlideIndex = -1;
    }
    else
    {
        mnFirstVisibleSlideIndex = nFirstVisibleSlideIndex;
        mnLastVisibleSlideIndex = nLastVisibleSlideIndex;
    }
    if (mxSlides.is() && mnLastVisibleSlideIndex >= mxSlides->getCount())
        mnLastVisibleSlideIndex = mxSlides->getCount() - 1;
}




void PresenterPreviewCache::PresenterCacheContext::AddPreviewCreationNotifyListener (
    const Reference<drawing::XSlidePreviewCacheListener>& rxListener)
{
    maListeners.push_back(rxListener);
}




void PresenterPreviewCache::PresenterCacheContext::RemovePreviewCreationNotifyListener (
    const Reference<drawing::XSlidePreviewCacheListener>& rxListener)
{
    ListenerContainer::iterator iListener;
    for (iListener=maListeners.begin(); iListener!=maListeners.end(); ++iListener)
        if (*iListener == rxListener)
        {
            maListeners.erase(iListener);
            return;
        }
}




//----- CacheContext ----------------------------------------------------------

void PresenterPreviewCache::PresenterCacheContext::NotifyPreviewCreation (
    CacheKey aKey,
    const Bitmap& rPreview)
{
    (void)rPreview;

    if ( ! mxSlides.is())
        return;
    const sal_Int32 nCount(mxSlides->getCount());
    for (sal_Int32 nIndex=0; nIndex<nCount; ++nIndex)
        if (aKey == GetPage(nIndex))
            CallListeners(nIndex);
}




bool PresenterPreviewCache::PresenterCacheContext::IsIdle (void)
{
    return true;
}




bool PresenterPreviewCache::PresenterCacheContext::IsVisible (CacheKey aKey)
{
    if (mnFirstVisibleSlideIndex < 0)
        return false;
    for (sal_Int32 nIndex=mnFirstVisibleSlideIndex; nIndex<=mnLastVisibleSlideIndex; ++nIndex)
    {
        const SdrPage* pPage = GetPage(nIndex);
        if (pPage == static_cast<const SdrPage*>(aKey))
            return true;
    }
    return false;
}




const SdrPage* PresenterPreviewCache::PresenterCacheContext::GetPage (CacheKey aKey)
{
    return static_cast<const SdrPage*>(aKey);
}




::boost::shared_ptr<std::vector<CacheKey> >
    PresenterPreviewCache::PresenterCacheContext::GetEntryList (bool bVisible)
{
    ::boost::shared_ptr<std::vector<CacheKey> > pKeys (new std::vector<CacheKey>());

    if ( ! mxSlides.is())
        return pKeys;

    const sal_Int32 nFirstIndex (bVisible ? mnFirstVisibleSlideIndex : 0);
    const sal_Int32 nLastIndex (bVisible ? mnLastVisibleSlideIndex : mxSlides->getCount()-1);

    if (nFirstIndex < 0)
        return pKeys;

    for (sal_Int32 nIndex=nFirstIndex; nIndex<=nLastIndex; ++nIndex)
    {
        pKeys->push_back(GetPage(nIndex));
    }

    return pKeys;
}




sal_Int32 PresenterPreviewCache::PresenterCacheContext::GetPriority (CacheKey aKey)
{
    if ( ! mxSlides.is())
        return 0;

    const sal_Int32 nCount (mxSlides->getCount());

    for (sal_Int32 nIndex=mnFirstVisibleSlideIndex; nIndex<=mnLastVisibleSlideIndex; ++nIndex)
        if (aKey == GetPage(nIndex))
            return -nCount-1+nIndex;

    for (sal_Int32 nIndex=0; nIndex<=nCount; ++nIndex)
        if (aKey == GetPage(nIndex))
            return nIndex;

    return 0;
}




Reference<XInterface> PresenterPreviewCache::PresenterCacheContext::GetModel (void)
{
    return mxDocument;
}




//-----------------------------------------------------------------------------

const SdrPage* PresenterPreviewCache::PresenterCacheContext::GetPage (
    const sal_Int32 nSlideIndex) const
{
    if ( ! mxSlides.is())
        return NULL;
    if (nSlideIndex < 0 || nSlideIndex >= mxSlides->getCount())
        return NULL;

    Reference<drawing::XDrawPage> xSlide (mxSlides->getByIndex(nSlideIndex), UNO_QUERY);
    const SdPage* pPage = SdPage::getImplementation(xSlide);
    return dynamic_cast<const SdrPage*>(pPage);
}




void PresenterPreviewCache::PresenterCacheContext::CallListeners (
    const sal_Int32 nIndex)
{
    ListenerContainer aListeners (maListeners);
    ListenerContainer::const_iterator iListener;
    for (iListener=aListeners.begin(); iListener!=aListeners.end(); ++iListener)
    {
        try
        {
            (*iListener)->notifyPreviewCreation(nIndex);
        }
        catch (lang::DisposedException&)
        {
            RemovePreviewCreationNotifyListener(*iListener);
        }
    }
}

} } // end of namespace ::sd::presenter

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