sd/source/ui/presenter/PresenterTextView.cxx

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