sd/source/ui/presenter/PresenterTextView.cxx

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  31
  32 #include "precompiled_sd.hxx"
  33
  34 #include "PresenterTextView.hxx"
  35
  36 #include <i18npool/mslangid.hxx>
  37 #include <cppcanvas/vclfactory.hxx>
  38 #include <svtools/itempool.hxx>
  39 #include <svtools/itemset.hxx>
  40 #include <svtools/linguprops.hxx>
  41 #include <svtools/lingucfg.hxx>
  42 #include <svx/colritem.hxx>
  43 #include <svx/editeng.hxx>
  44 #include <svx/editstat.hxx>
  45 #include <svx/eeitem.hxx>
  46 #include <svx/fhgtitem.hxx>
  47 #include <svx/fontitem.hxx>
  48 #include <svx/xflclit.hxx>
  49 #include <vcl/bitmapex.hxx>
  50 #include <vcl/svapp.hxx>
  51 #include <vcl/virdev.hxx>
  52 #include <com/sun/star/awt/FontDescriptor.hpp>
  53 #include <com/sun/star/awt/Size.hpp>
  54 #include <com/sun/star/rendering/XSpriteCanvas.hpp>
  55 #include <com/sun/star/util/Color.hpp>
  56 #include <com/sun/star/i18n/ScriptType.hpp>
  57
  58
  59 using namespace ::com::sun::star;
  60 using namespace ::com::sun::star::uno;
  61 using namespace ::com::sun::star::lang;
  62 using ::rtl::OUString;
  63
  64 namespace sd { namespace presenter {
  65
  66 //===== Service ===============================================================
  67
  68 Reference<XInterface> SAL_CALL PresenterTextViewService_createInstance (
  69     const Reference<XComponentContext>& rxContext)
  70 {
  71     return Reference<XInterface>(static_cast<XWeak*>(new PresenterTextView(rxContext)));
  72 }
  73
  74
  75
  76
  77 ::rtl::OUString PresenterTextViewService_getImplementationName (void) throw(RuntimeException)
  78 {
  79     return OUString::createFromAscii("com.sun.star.comp.Draw.PresenterTextView");
  80 }
  81
  82
  83
  84
  85 Sequence<rtl::OUString> SAL_CALL PresenterTextViewService_getSupportedServiceNames (void)
  86     throw (RuntimeException)
  87 {
  88     static const ::rtl::OUString sServiceName(
  89         ::rtl::OUString::createFromAscii("com.sun.star.drawing.PresenterTextView"));
  90     return Sequence<rtl::OUString>(&sServiceName, 1);
  91 }
  92
  93
  94
  95 //===== PresenterTextView::Implementation =====================================
  96
  97 class PresenterTextView::Implementation
  98 {
  99 public:
 100     const OUString msTextPropertyName;
 101     const OUString msBitmapPropertyName;
 102     const OUString msSizePropertyName;
 103     const OUString msBackgroundColorPropertyName;
 104     const OUString msTextColorPropertyName;
 105     const OUString msFontDescriptorPropertyName;
 106     const OUString msTopPropertyName;
 107     const OUString msTopRelativePropertyName;
 108     const OUString msTotalHeightPropertyName;
 109
 110     Implementation (void);
 111     ~Implementation (void);
 112
 113     void SetCanvas (const cppcanvas::CanvasSharedPtr& rCanvas);
 114     void SetSize (const Size aSize);
 115     void SetBackgroundColor (const Color aColor);
 116     void SetTextColor (const Color aColor);
 117     void SetFontDescriptor (const awt::FontDescriptor& rFontDescriptor);
 118     sal_Int32 GetTop (void) const;
 119     void SetTop (const sal_Int32 nTop);
 120     void ClearText (void);
 121     void SetText (const OUString& Text);
 122     sal_Int32 ParseDistance (const OUString& rsDistance) const;
 123     Reference<rendering::XBitmap> GetBitmap (void);
 124     sal_Int32 GetTotalHeight (void);
 125
 126 private:
 127     Reference<rendering::XBitmap> mxBitmap;
 128     cppcanvas::CanvasSharedPtr mpCanvas;
 129     VirtualDevice* mpOutputDevice;
 130     EditEngine* mpEditEngine;
 131     SfxItemPool* mpEditEngineItemPool;
 132     Size maSize;
 133     Color maBackgroundColor;
 134     Color maTextColor;
 135     String msText;
 136     sal_Int32 mnTop;
 137     sal_Int32 mnTotalHeight;
 138
 139     EditEngine * GetEditEngine (void);
 140     EditEngine* CreateEditEngine (void);
 141     void CheckTop (void);
 142 };
 143
 144
 145
 146
 147 //===== PresenterTextView =====================================================
 148
 149 PresenterTextView::PresenterTextView (const Reference<XComponentContext>& rxContext)
 150     : PresenterTextViewInterfaceBase(),
 151       mpImplementation(new Implementation())
 152 {
 153     (void)rxContext;
 154 }
 155
 156
 157
 158
 159 PresenterTextView::~PresenterTextView (void)
 160 {
 161 }
 162
 163
 164
 165
 166 void SAL_CALL PresenterTextView::disposing (void)
 167 {
 168     mpImplementation.reset();
 169 }
 170
 171
 172
 173
 174 //----- XInitialization -------------------------------------------------------
 175
 176 void SAL_CALL PresenterTextView::initialize (const Sequence<Any>& rArguments)
 177     throw (Exception, RuntimeException)
 178 {
 179     ThrowIfDisposed();
 180
 181     if (rArguments.getLength() == 1)
 182     {
 183         try
 184         {
 185             Reference<rendering::XBitmapCanvas> xCanvas (rArguments[0], UNO_QUERY_THROW);
 186             if (xCanvas.is())
 187             {
 188                 mpImplementation->SetCanvas(
 189                     cppcanvas::VCLFactory::getInstance().createCanvas(xCanvas));
 190             }
 191         }
 192         catch (RuntimeException&)
 193         {
 194             throw;
 195         }
 196     }
 197     else
 198     {
 199         throw RuntimeException(
 200             OUString::createFromAscii("PresenterTextView: invalid number of arguments"),
 201                 static_cast<XWeak*>(this));
 202     }
 203 }
 204
 205
 206
 207
 208 //-----------------------------------------------------------------------------
 209
 210 Any PresenterTextView::GetPropertyValue (const OUString& rsPropertyName)
 211 {
 212     ThrowIfDisposed();
 213
 214     if (rsPropertyName == mpImplementation->msBitmapPropertyName)
 215     {
 216         return Any(mpImplementation->GetBitmap());
 217     }
 218     else if (rsPropertyName == mpImplementation->msTopPropertyName)
 219     {
 220         return Any(mpImplementation->GetTop());
 221     }
 222     else if (rsPropertyName == mpImplementation->msTotalHeightPropertyName)
 223     {
 224         return Any(mpImplementation->GetTotalHeight());
 225     }
 226
 227     return Any();
 228 }
 229
 230
 231
 232
 233 Any PresenterTextView::SetPropertyValue (
 234     const ::rtl::OUString& rsPropertyName,
 235     const css::uno::Any& rValue)
 236 {
 237     ThrowIfDisposed();
 238
 239     Any aOldValue;
 240     if (rsPropertyName == mpImplementation->msTextPropertyName)
 241     {
 242         OUString sText;
 243         if (rValue >>= sText)
 244             mpImplementation->SetText(sText);
 245     }
 246     else if (rsPropertyName == mpImplementation->msSizePropertyName)
 247     {
 248         awt::Size aSize;
 249         if (rValue >>= aSize)
 250             mpImplementation->SetSize(Size(aSize.Width,aSize.Height));
 251     }
 252     else if (rsPropertyName == mpImplementation->msBackgroundColorPropertyName)
 253     {
 254         util::Color aColor = util::Color();
 255         if (rValue >>= aColor)
 256             mpImplementation->SetBackgroundColor(Color(aColor));
 257     }
 258     else if (rsPropertyName == mpImplementation->msTextColorPropertyName)
 259     {
 260         util::Color aColor = util::Color();
 261         if (rValue >>= aColor)
 262             mpImplementation->SetTextColor(Color(aColor));
 263     }
 264     else if (rsPropertyName == mpImplementation->msFontDescriptorPropertyName)
 265     {
 266         awt::FontDescriptor aFontDescriptor;
 267         if (rValue >>= aFontDescriptor)
 268             mpImplementation->SetFontDescriptor(aFontDescriptor);
 269     }
 270     else if (rsPropertyName == mpImplementation->msTopPropertyName)
 271     {
 272         sal_Int32 nTop = 0;
 273         if (rValue >>= nTop)
 274             mpImplementation->SetTop(nTop);
 275     }
 276     else if (rsPropertyName == mpImplementation->msTopRelativePropertyName)
 277     {
 278         OUString sDistance;
 279         if (rValue >>= sDistance)
 280             mpImplementation->SetTop(
 281                 mpImplementation->GetTop()
 282                     + mpImplementation->ParseDistance(sDistance));
 283     }
 284     return aOldValue;
 285 }
 286
 287
 288
 289
 290 void PresenterTextView::ThrowIfDisposed (void)
 291     throw (::com::sun::star::lang::DisposedException)
 292 {
 293     if (PresenterTextViewInterfaceBase::rBHelper.bDisposed
 294         || PresenterTextViewInterfaceBase::rBHelper.bInDispose
 295         || mpImplementation.get()==NULL)
 296     {
 297         throw lang::DisposedException (
 298             ::rtl::OUString(RTL_CONSTASCII_USTRINGPARAM(
 299                 "PresenterTextView object has already been disposed")),
 300             static_cast<uno::XWeak*>(this));
 301     }
 302 }
 303
 304
 305
 306
 307 //===== PresenterTextView::Implementation =====================================
 308
 309 PresenterTextView::Implementation::Implementation (void)
 310     : msTextPropertyName(OUString::createFromAscii("Text")),
 311       msBitmapPropertyName(OUString::createFromAscii("Bitmap")),
 312       msSizePropertyName(OUString::createFromAscii("Size")),
 313       msBackgroundColorPropertyName(OUString::createFromAscii("BackgroundColor")),
 314       msTextColorPropertyName(OUString::createFromAscii("TextColor")),
 315       msFontDescriptorPropertyName(OUString::createFromAscii("FontDescriptor")),
 316       msTopPropertyName(OUString::createFromAscii("Top")),
 317       msTopRelativePropertyName(OUString::createFromAscii("RelativeTop")),
 318       msTotalHeightPropertyName(OUString::createFromAscii("TotalHeight")),
 319       mxBitmap(),
 320       mpCanvas(),
 321       mpOutputDevice(new VirtualDevice(*Application::GetDefaultDevice(), 0, 0)),
 322       mpEditEngine(NULL),
 323       mpEditEngineItemPool(EditEngine::CreatePool()),
 324       maSize(100,100),
 325       maBackgroundColor(0xffffffff),
 326       maTextColor(0x00000000),
 327       msText(),
 328       mnTop(0),
 329       mnTotalHeight(-1)
 330 {
 331     mpOutputDevice->SetMapMode(MAP_PIXEL);
 332
 333     GetEditEngine();
 334 }
 335
 336
 337
 338
 339 PresenterTextView::Implementation::~Implementation (void)
 340 {
 341     delete mpEditEngine;
 342     SfxItemPool::Free(mpEditEngineItemPool);
 343     delete mpOutputDevice;
 344 }
 345
 346
 347
 348
 349 EditEngine * PresenterTextView::Implementation::GetEditEngine (void)
 350 {
 351     if (mpEditEngine == NULL)
 352         mpEditEngine = CreateEditEngine ();
 353     return mpEditEngine;
 354 }
 355
 356
 357
 358
 359 EditEngine* PresenterTextView::Implementation::CreateEditEngine (void)
 360 {
 361     EditEngine* pEditEngine = mpEditEngine;
 362     if (pEditEngine == NULL)
 363     {
 364         //
 365         // set fonts to be used
 366         //
 367         SvtLinguOptions aOpt;
 368         SvtLinguConfig().GetOptions( aOpt );
 369         //
 370         struct FontDta {
 371             INT16       nFallbackLang;
 372             INT16       nLang;
 373             USHORT      nFontType;
 374             USHORT      nFontInfoId;
 375             } aTable[3] =
 376         {
 377             // info to get western font to be used
 378             {   LANGUAGE_ENGLISH_US,    LANGUAGE_NONE,
 379                 DEFAULTFONT_SERIF,      EE_CHAR_FONTINFO },
 380             // info to get CJK font to be used
 381             {   LANGUAGE_JAPANESE,      LANGUAGE_NONE,
 382                 DEFAULTFONT_CJK_TEXT,   EE_CHAR_FONTINFO_CJK },
 383             // info to get CTL font to be used
 384             {   LANGUAGE_ARABIC_SAUDI_ARABIA,  LANGUAGE_NONE,
 385                 DEFAULTFONT_CTL_TEXT,   EE_CHAR_FONTINFO_CTL }
 386         };
 387         aTable[0].nLang = MsLangId::resolveSystemLanguageByScriptType(aOpt.nDefaultLanguage, ::com::sun::star::i18n::ScriptType::LATIN);
 388         aTable[1].nLang = MsLangId::resolveSystemLanguageByScriptType(aOpt.nDefaultLanguage_CJK, ::com::sun::star::i18n::ScriptType::ASIAN);
 389         aTable[2].nLang = MsLangId::resolveSystemLanguageByScriptType(aOpt.nDefaultLanguage_CTL, ::com::sun::star::i18n::ScriptType::COMPLEX);
 390         //
 391         for (int i = 0;  i < 3;  ++i)
 392         {
 393             const FontDta &rFntDta = aTable[i];
 394             LanguageType nLang = (LANGUAGE_NONE == rFntDta.nLang) ?
 395                 rFntDta.nFallbackLang : rFntDta.nLang;
 396             Font aFont = Application::GetDefaultDevice()->GetDefaultFont(
 397                 rFntDta.nFontType, nLang, DEFAULTFONT_FLAGS_ONLYONE);
 398             mpEditEngineItemPool->SetPoolDefaultItem(
 399                 SvxFontItem(
 400                     aFont.GetFamily(),
 401                     aFont.GetName(),
 402                     aFont.GetStyleName(),
 403                     aFont.GetPitch(),
 404                     aFont.GetCharSet(),
 405                     rFntDta.nFontInfoId));
 406         }
 407
 408
 409         pEditEngine = new EditEngine (mpEditEngineItemPool);
 410
 411         pEditEngine->EnableUndo (TRUE);
 412         pEditEngine->SetDefTab (USHORT(
 413             Application::GetDefaultDevice()->GetTextWidth(
 414                 UniString::CreateFromAscii("XXXX"))));
 415
 416         pEditEngine->SetControlWord(
 417                 (pEditEngine->GetControlWord()
 418                     | EE_CNTRL_AUTOINDENTING) &
 419                 (~EE_CNTRL_UNDOATTRIBS) &
 420                 (~EE_CNTRL_PASTESPECIAL));
 421
 422         pEditEngine->SetWordDelimiters (
 423             UniString::CreateFromAscii(" .=+-*/(){}[];\""));
 424         pEditEngine->SetRefMapMode (MAP_PIXEL);
 425         pEditEngine->SetPaperSize (Size(800, 0));
 426         pEditEngine->EraseVirtualDevice();
 427         pEditEngine->ClearModifyFlag();
 428     }
 429
 430     return pEditEngine;
 431 }
 432
 433
 434
 435
 436 void PresenterTextView::Implementation::SetCanvas (const cppcanvas::CanvasSharedPtr& rpCanvas)
 437 {
 438     mpCanvas = rpCanvas;
 439     mxBitmap = NULL;
 440 }
 441
 442
 443
 444
 445 void PresenterTextView::Implementation::SetSize (const Size aSize)
 446 {
 447     DBG_ASSERT(mpEditEngine!=NULL, "EditEngine missing");
 448
 449     maSize = aSize;
 450     mpEditEngine->SetPaperSize(maSize);
 451     mnTotalHeight = -1;
 452     mxBitmap = NULL;
 453 }
 454
 455
 456
 457
 458 void PresenterTextView::Implementation::SetBackgroundColor (const Color aColor)
 459 {
 460     maBackgroundColor = aColor;
 461     mxBitmap = NULL;
 462
 463     DBG_ASSERT(mpEditEngine!=NULL, "EditEngine missing");
 464     DBG_ASSERT(mpEditEngineItemPool!=NULL, "EditEngineItemPool missing");
 465     mpEditEngine->SetBackgroundColor(aColor);
 466     mpEditEngine->EnableAutoColor(FALSE);
 467     mpEditEngine->ForceAutoColor(FALSE);
 468 }
 469
 470
 471
 472
 473 void PresenterTextView::Implementation::SetTextColor (const Color aColor)
 474 {
 475     maTextColor = aColor;
 476     mxBitmap = NULL;
 477
 478     DBG_ASSERT(mpEditEngineItemPool!=NULL, "EditEngineItemPool missing");
 479     mpEditEngineItemPool->SetPoolDefaultItem(SvxColorItem(aColor, EE_CHAR_COLOR));
 480 }
 481
 482
 483
 484
 485 void PresenterTextView::Implementation::SetFontDescriptor (
 486     const awt::FontDescriptor& rFontDescriptor)
 487 {
 488     mxBitmap = NULL;
 489
 490     DBG_ASSERT(mpEditEngineItemPool!=NULL, "EditEngineItemPool missing");
 491
 492     const sal_Int32 nFontHeight = rFontDescriptor.Height;
 493
 494     SvxFontHeightItem aFontHeight(
 495         Application::GetDefaultDevice()->LogicToPixel(
 496             Size(0, nFontHeight), MapMode (MAP_POINT)).Height(),
 497         100,
 498         EE_CHAR_FONTHEIGHT);
 499     mpEditEngineItemPool->SetPoolDefaultItem( aFontHeight);
 500     aFontHeight.SetWhich (EE_CHAR_FONTHEIGHT_CJK);
 501     mpEditEngineItemPool->SetPoolDefaultItem( aFontHeight);
 502     aFontHeight.SetWhich (EE_CHAR_FONTHEIGHT_CTL);
 503     mpEditEngineItemPool->SetPoolDefaultItem( aFontHeight);
 504
 505     SvxFontItem aSvxFontItem (EE_CHAR_FONTINFO);
 506     aSvxFontItem.GetFamilyName() = rFontDescriptor.Name;
 507     mpEditEngineItemPool->SetPoolDefaultItem(aSvxFontItem);
 508
 509     mnTotalHeight = -1;
 510     mxBitmap = NULL;
 511
 512     CheckTop();
 513     mnTotalHeight = -1;
 514 }
 515
 516
 517
 518
 519 sal_Int32 PresenterTextView::Implementation::GetTop (void) const
 520 {
 521     return mnTop;
 522 }
 523
 524
 525
 526
 527 void PresenterTextView::Implementation::SetTop (const sal_Int32 nTop)
 528 {
 529     if (nTop == mnTop)
 530         return;
 531
 532     mnTop = nTop;
 533     mxBitmap = NULL;
 534     CheckTop();
 535 }
 536
 537
 538
 539
 540 void PresenterTextView::Implementation::ClearText (void)
 541 {
 542     DBG_ASSERT(mpEditEngine!=NULL, "EditEngine missing");
 543     msText = OUString();
 544     mnTotalHeight = 0;
 545     mxBitmap = NULL;
 546 }
 547
 548
 549
 550
 551 void PresenterTextView::Implementation::SetText (const OUString& rText)
 552 {
 553     DBG_ASSERT(mpEditEngine!=NULL, "EditEngine missing");
 554     msText = rText;
 555     mpEditEngine->SetPaperSize(maSize);
 556     mnTotalHeight = -1;
 557     mxBitmap = NULL;
 558 }
 559
 560
 561
 562
 563 sal_Int32 PresenterTextView::Implementation::ParseDistance (const OUString& rsDistance) const
 564 {
 565     DBG_ASSERT(mpEditEngine!=NULL, "EditEngine missing");
 566     sal_Int32 nDistance (0);
 567     if (rsDistance.endsWithAsciiL("px", 2))
 568     {
 569         nDistance = rsDistance.copy(0,rsDistance.getLength()-2).toInt32();
 570     }
 571     else if (rsDistance.endsWithAsciiL("l", 1))
 572     {
 573         const sal_Int32 nLines (rsDistance.copy(0,rsDistance.getLength()-1).toInt32());
 574         // Take the height of the first line as the height of every line.
 575         const sal_uInt32 nFirstLineHeight (mpEditEngine->GetLineHeight(0,0));
 576         nDistance = nFirstLineHeight * nLines;
 577     }
 578
 579     return nDistance;
 580 }
 581
 582
 583
 584
 585 Reference<rendering::XBitmap> PresenterTextView::Implementation::GetBitmap (void)
 586 {
 587     DBG_ASSERT(mpEditEngine!=NULL, "EditEngine missing");
 588
 589     if ( ! mxBitmap.is())
 590     {
 591         if (mpOutputDevice != NULL)
 592             delete mpOutputDevice;
 593         mpOutputDevice = new VirtualDevice(*Application::GetDefaultDevice(), 0, 0);
 594         mpOutputDevice->SetMapMode(MAP_PIXEL);
 595         mpOutputDevice->SetOutputSizePixel(maSize, TRUE);
 596         mpOutputDevice->SetLineColor();
 597         mpOutputDevice->SetFillColor();
 598         mpOutputDevice->SetBackground(Wallpaper());
 599         mpOutputDevice->Erase();
 600
 601         MapMode aMapMode (mpOutputDevice->GetMapMode());
 602         aMapMode.SetOrigin(Point(0,0));
 603         mpOutputDevice->SetMapMode(aMapMode);
 604         const Rectangle aWindowBox (Point(0,0), maSize);
 605         mpOutputDevice->DrawRect(aWindowBox);
 606
 607         mpEditEngine->Clear();
 608         mpEditEngine->SetText(msText);
 609         mpEditEngine->SetPaperSize(maSize);
 610
 611         mpEditEngine->Draw(mpOutputDevice, aWindowBox, Point(0,mnTop));
 612
 613         const BitmapEx aBitmap (mpOutputDevice->GetBitmapEx(Point(0,0), maSize));
 614         mxBitmap = cppcanvas::VCLFactory::getInstance().createBitmap(
 615             mpCanvas,
 616             aBitmap
 617             )->getUNOBitmap();
 618     }
 619     return mxBitmap;
 620 }
 621
 622
 623
 624
 625 sal_Int32 PresenterTextView::Implementation::GetTotalHeight (void)
 626 {
 627     DBG_ASSERT(mpEditEngine!=NULL, "EditEngine missing");
 628
 629     if (mnTotalHeight < 0)
 630     {
 631         if ( ! mxBitmap.is())
 632             GetBitmap();
 633         mnTotalHeight = mpEditEngine->GetTextHeight();
 634     }
 635     return mnTotalHeight;
 636 }
 637
 638
 639
 640
 641 void PresenterTextView::Implementation::CheckTop (void)
 642 {
 643     DBG_ASSERT(mpEditEngine!=NULL, "EditEngine missing");
 644
 645     if (mnTotalHeight < 0)
 646         mnTotalHeight = mpEditEngine->GetTextHeight();
 647     if (mpEditEngine!=NULL && mnTop >= mnTotalHeight)
 648         mnTop = mnTotalHeight - mpEditEngine->GetLineHeight(0,0);
 649
 650     if (mnTotalHeight < maSize.Height())
 651         mnTop = 0;
 652
 653     if (mnTotalHeight - mnTop < maSize.Height())
 654         mnTop = mnTotalHeight - maSize.Height();
 655
 656     if (mnTop < 0)
 657         mnTop = 0;
 658 }
 659
 660
 661 } } // end of namespace ::sd::presenter