sd/source/ui/presenter/PresenterTextView.cxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /*
   3  * This file is part of the LibreOffice project.
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   5  * This Source Code Form is subject to the terms of the Mozilla Public
   6  * License, v. 2.0. If a copy of the MPL was not distributed with this
   7  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
   8  *
   9  * This file incorporates work covered by the following license notice:
  10  *
  11  *   Licensed to the Apache Software Foundation (ASF) under one or more
  12  *   contributor license agreements. See the NOTICE file distributed
  13  *   with this work for additional information regarding copyright
  14  *   ownership. The ASF licenses this file to you under the Apache
  15  *   License, Version 2.0 (the "License"); you may not use this file
  16  *   except in compliance with the License. You may obtain a copy of
  17  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
  18  */
  19
  20
  21 #include "PresenterTextView.hxx"
  22
  23 #include <i18nlangtag/mslangid.hxx>
  24 #include <cppcanvas/vclfactory.hxx>
  25 #include <svl/itempool.hxx>
  26 #include <svl/itemset.hxx>
  27 #include <unotools/linguprops.hxx>
  28 #include <unotools/lingucfg.hxx>
  29 #include <editeng/colritem.hxx>
  30 #include <editeng/editeng.hxx>
  31 #include <editeng/editstat.hxx>
  32 #include <editeng/eeitem.hxx>
  33 #include <editeng/fhgtitem.hxx>
  34 #include <editeng/fontitem.hxx>
  35 #include <svx/xflclit.hxx>
  36 #include <vcl/bitmapex.hxx>
  37 #include <vcl/svapp.hxx>
  38 #include <vcl/virdev.hxx>
  39 #include <com/sun/star/awt/FontDescriptor.hpp>
  40 #include <com/sun/star/awt/Size.hpp>
  41 #include <com/sun/star/rendering/XSpriteCanvas.hpp>
  42 #include <com/sun/star/util/Color.hpp>
  43 #include <com/sun/star/i18n/ScriptType.hpp>
  44
  45
  46 using namespace ::com::sun::star;
  47 using namespace ::com::sun::star::uno;
  48 using namespace ::com::sun::star::lang;
  49
  50 namespace sd { namespace presenter {
  51
  52 //===== Service ===============================================================
  53
  54 Reference<XInterface> SAL_CALL PresenterTextViewService_createInstance (
  55     const Reference<XComponentContext>& rxContext)
  56 {
  57     return Reference<XInterface>(static_cast<XWeak*>(new PresenterTextView(rxContext)));
  58 }
  59
  60
  61
  62
  63 OUString PresenterTextViewService_getImplementationName (void) throw(RuntimeException)
  64 {
  65     return OUString("com.sun.star.comp.Draw.PresenterTextView");
  66 }
  67
  68
  69
  70
  71 Sequence<OUString> SAL_CALL PresenterTextViewService_getSupportedServiceNames (void)
  72     throw (RuntimeException)
  73 {
  74     static const OUString sServiceName("com.sun.star.drawing.PresenterTextView");
  75     return Sequence<OUString>(&sServiceName, 1);
  76 }
  77
  78
  79
  80 //===== PresenterTextView::Implementation =====================================
  81
  82 class PresenterTextView::Implementation
  83 {
  84 public:
  85     const OUString msTextPropertyName;
  86     const OUString msBitmapPropertyName;
  87     const OUString msSizePropertyName;
  88     const OUString msBackgroundColorPropertyName;
  89     const OUString msTextColorPropertyName;
  90     const OUString msFontDescriptorPropertyName;
  91     const OUString msTopPropertyName;
  92     const OUString msTopRelativePropertyName;
  93     const OUString msTotalHeightPropertyName;
  94
  95     Implementation (void);
  96     ~Implementation (void);
  97
  98     void SetCanvas (const cppcanvas::CanvasSharedPtr& rCanvas);
  99     void SetSize (const Size aSize);
 100     void SetBackgroundColor (const Color aColor);
 101     void SetTextColor (const Color aColor);
 102     void SetFontDescriptor (const awt::FontDescriptor& rFontDescriptor);
 103     sal_Int32 GetTop (void) const;
 104     void SetTop (const sal_Int32 nTop);
 105     void SetText (const OUString& Text);
 106     sal_Int32 ParseDistance (const OUString& rsDistance) const;
 107     Reference<rendering::XBitmap> GetBitmap (void);
 108     sal_Int32 GetTotalHeight (void);
 109
 110 private:
 111     Reference<rendering::XBitmap> mxBitmap;
 112     cppcanvas::CanvasSharedPtr mpCanvas;
 113     VirtualDevice* mpOutputDevice;
 114     EditEngine* mpEditEngine;
 115     SfxItemPool* mpEditEngineItemPool;
 116     Size maSize;
 117     Color maBackgroundColor;
 118     Color maTextColor;
 119     String msText;
 120     sal_Int32 mnTop;
 121     sal_Int32 mnTotalHeight;
 122
 123     EditEngine * GetEditEngine (void);
 124     EditEngine* CreateEditEngine (void);
 125     void CheckTop (void);
 126 };
 127
 128
 129
 130
 131 //===== PresenterTextView =====================================================
 132
 133 PresenterTextView::PresenterTextView (const Reference<XComponentContext>& rxContext)
 134     : PresenterTextViewInterfaceBase(),
 135       mpImplementation(new Implementation())
 136 {
 137     (void)rxContext;
 138 }
 139
 140
 141
 142
 143 PresenterTextView::~PresenterTextView (void)
 144 {
 145 }
 146
 147
 148
 149
 150 void SAL_CALL PresenterTextView::disposing (void)
 151 {
 152     mpImplementation.reset();
 153 }
 154
 155
 156
 157
 158 //----- XInitialization -------------------------------------------------------
 159
 160 void SAL_CALL PresenterTextView::initialize (const Sequence<Any>& rArguments)
 161     throw (Exception, RuntimeException)
 162 {
 163     ThrowIfDisposed();
 164
 165     if (rArguments.getLength() == 1)
 166     {
 167         try
 168         {
 169             Reference<rendering::XBitmapCanvas> xCanvas (rArguments[0], UNO_QUERY_THROW);
 170             if (xCanvas.is())
 171             {
 172                 mpImplementation->SetCanvas(
 173                     cppcanvas::VCLFactory::getInstance().createCanvas(xCanvas));
 174             }
 175         }
 176         catch (RuntimeException&)
 177         {
 178             throw;
 179         }
 180     }
 181     else
 182     {
 183         throw RuntimeException("PresenterTextView: invalid number of arguments",
 184                 static_cast<XWeak*>(this));
 185     }
 186 }
 187
 188
 189
 190
 191 //-----------------------------------------------------------------------------
 192
 193 Any PresenterTextView::GetPropertyValue (const OUString& rsPropertyName)
 194 {
 195     ThrowIfDisposed();
 196
 197     if (rsPropertyName == mpImplementation->msBitmapPropertyName)
 198     {
 199         return Any(mpImplementation->GetBitmap());
 200     }
 201     else if (rsPropertyName == mpImplementation->msTopPropertyName)
 202     {
 203         return Any(mpImplementation->GetTop());
 204     }
 205     else if (rsPropertyName == mpImplementation->msTotalHeightPropertyName)
 206     {
 207         return Any(mpImplementation->GetTotalHeight());
 208     }
 209
 210     return Any();
 211 }
 212
 213
 214
 215
 216 Any PresenterTextView::SetPropertyValue (
 217     const OUString& rsPropertyName,
 218     const css::uno::Any& rValue)
 219 {
 220     ThrowIfDisposed();
 221
 222     Any aOldValue;
 223     if (rsPropertyName == mpImplementation->msTextPropertyName)
 224     {
 225         OUString sText;
 226         if (rValue >>= sText)
 227             mpImplementation->SetText(sText);
 228     }
 229     else if (rsPropertyName == mpImplementation->msSizePropertyName)
 230     {
 231         awt::Size aSize;
 232         if (rValue >>= aSize)
 233             mpImplementation->SetSize(Size(aSize.Width,aSize.Height));
 234     }
 235     else if (rsPropertyName == mpImplementation->msBackgroundColorPropertyName)
 236     {
 237         util::Color aColor = util::Color();
 238         if (rValue >>= aColor)
 239             mpImplementation->SetBackgroundColor(Color(aColor));
 240     }
 241     else if (rsPropertyName == mpImplementation->msTextColorPropertyName)
 242     {
 243         util::Color aColor = util::Color();
 244         if (rValue >>= aColor)
 245             mpImplementation->SetTextColor(Color(aColor));
 246     }
 247     else if (rsPropertyName == mpImplementation->msFontDescriptorPropertyName)
 248     {
 249         awt::FontDescriptor aFontDescriptor;
 250         if (rValue >>= aFontDescriptor)
 251             mpImplementation->SetFontDescriptor(aFontDescriptor);
 252     }
 253     else if (rsPropertyName == mpImplementation->msTopPropertyName)
 254     {
 255         sal_Int32 nTop = 0;
 256         if (rValue >>= nTop)
 257             mpImplementation->SetTop(nTop);
 258     }
 259     else if (rsPropertyName == mpImplementation->msTopRelativePropertyName)
 260     {
 261         OUString sDistance;
 262         if (rValue >>= sDistance)
 263             mpImplementation->SetTop(
 264                 mpImplementation->GetTop()
 265                     + mpImplementation->ParseDistance(sDistance));
 266     }
 267     return aOldValue;
 268 }
 269
 270
 271
 272
 273 void PresenterTextView::ThrowIfDisposed (void)
 274     throw (::com::sun::star::lang::DisposedException)
 275 {
 276     if (PresenterTextViewInterfaceBase::rBHelper.bDisposed
 277         || PresenterTextViewInterfaceBase::rBHelper.bInDispose
 278         || mpImplementation.get()==NULL)
 279     {
 280         throw lang::DisposedException ("PresenterTextView object has already been disposed",
 281             static_cast<uno::XWeak*>(this));
 282     }
 283 }
 284
 285
 286
 287
 288 //===== PresenterTextView::Implementation =====================================
 289
 290 PresenterTextView::Implementation::Implementation (void)
 291     : msTextPropertyName("Text"),
 292       msBitmapPropertyName("Bitmap"),
 293       msSizePropertyName("Size"),
 294       msBackgroundColorPropertyName("BackgroundColor"),
 295       msTextColorPropertyName("TextColor"),
 296       msFontDescriptorPropertyName("FontDescriptor"),
 297       msTopPropertyName("Top"),
 298       msTopRelativePropertyName("RelativeTop"),
 299       msTotalHeightPropertyName("TotalHeight"),
 300       mxBitmap(),
 301       mpCanvas(),
 302       mpOutputDevice(new VirtualDevice(*Application::GetDefaultDevice(), 0, 0)),
 303       mpEditEngine(NULL),
 304       mpEditEngineItemPool(EditEngine::CreatePool()),
 305       maSize(100,100),
 306       maBackgroundColor(0xffffffff),
 307       maTextColor(0x00000000),
 308       msText(),
 309       mnTop(0),
 310       mnTotalHeight(-1)
 311 {
 312     mpOutputDevice->SetMapMode(MAP_PIXEL);
 313
 314     GetEditEngine();
 315 }
 316
 317
 318
 319
 320 PresenterTextView::Implementation::~Implementation (void)
 321 {
 322     delete mpEditEngine;
 323     SfxItemPool::Free(mpEditEngineItemPool);
 324     delete mpOutputDevice;
 325 }
 326
 327
 328
 329
 330 EditEngine * PresenterTextView::Implementation::GetEditEngine (void)
 331 {
 332     if (mpEditEngine == NULL)
 333         mpEditEngine = CreateEditEngine ();
 334     return mpEditEngine;
 335 }
 336
 337
 338
 339
 340 EditEngine* PresenterTextView::Implementation::CreateEditEngine (void)
 341 {
 342     EditEngine* pEditEngine = mpEditEngine;
 343     if (pEditEngine == NULL)
 344     {
 345         //
 346         // set fonts to be used
 347         //
 348         SvtLinguOptions aOpt;
 349         SvtLinguConfig().GetOptions( aOpt );
 350
 351         struct FontDta {
 352             sal_Int16       nFallbackLang;
 353             sal_Int16       nLang;
 354             sal_uInt16      nFontType;
 355             sal_uInt16      nFontInfoId;
 356             } aTable[3] =
 357         {
 358             // info to get western font to be used
 359             {   LANGUAGE_ENGLISH_US,    LANGUAGE_NONE,
 360                 DEFAULTFONT_SERIF,      EE_CHAR_FONTINFO },
 361             // info to get CJK font to be used
 362             {   LANGUAGE_JAPANESE,      LANGUAGE_NONE,
 363                 DEFAULTFONT_CJK_TEXT,   EE_CHAR_FONTINFO_CJK },
 364             // info to get CTL font to be used
 365             {   LANGUAGE_ARABIC_SAUDI_ARABIA,  LANGUAGE_NONE,
 366                 DEFAULTFONT_CTL_TEXT,   EE_CHAR_FONTINFO_CTL }
 367         };
 368         aTable[0].nLang = MsLangId::resolveSystemLanguageByScriptType(aOpt.nDefaultLanguage, ::com::sun::star::i18n::ScriptType::LATIN);
 369         aTable[1].nLang = MsLangId::resolveSystemLanguageByScriptType(aOpt.nDefaultLanguage_CJK, ::com::sun::star::i18n::ScriptType::ASIAN);
 370         aTable[2].nLang = MsLangId::resolveSystemLanguageByScriptType(aOpt.nDefaultLanguage_CTL, ::com::sun::star::i18n::ScriptType::COMPLEX);
 371
 372         for (int i = 0;  i < 3;  ++i)
 373         {
 374             const FontDta &rFntDta = aTable[i];
 375             LanguageType nLang = (LANGUAGE_NONE == rFntDta.nLang) ?
 376                 rFntDta.nFallbackLang : rFntDta.nLang;
 377             Font aFont = Application::GetDefaultDevice()->GetDefaultFont(
 378                 rFntDta.nFontType, nLang, DEFAULTFONT_FLAGS_ONLYONE);
 379             mpEditEngineItemPool->SetPoolDefaultItem(
 380                 SvxFontItem(
 381                     aFont.GetFamily(),
 382                     aFont.GetName(),
 383                     aFont.GetStyleName(),
 384                     aFont.GetPitch(),
 385                     aFont.GetCharSet(),
 386                     rFntDta.nFontInfoId));
 387         }
 388
 389
 390         pEditEngine = new EditEngine (mpEditEngineItemPool);
 391
 392         pEditEngine->EnableUndo (sal_True);
 393         pEditEngine->SetDefTab (sal_uInt16(
 394             Application::GetDefaultDevice()->GetTextWidth(OUString("XXXX"))));
 395
 396         pEditEngine->SetControlWord(
 397                 (pEditEngine->GetControlWord()
 398                     | EE_CNTRL_AUTOINDENTING) &
 399                 (~EE_CNTRL_UNDOATTRIBS) &
 400                 (~EE_CNTRL_PASTESPECIAL));
 401
 402         pEditEngine->SetWordDelimiters (OUString(" .=+-*/(){}[];\""));
 403         pEditEngine->SetRefMapMode (MAP_PIXEL);
 404         pEditEngine->SetPaperSize (Size(800, 0));
 405         pEditEngine->EraseVirtualDevice();
 406         pEditEngine->ClearModifyFlag();
 407     }
 408
 409     return pEditEngine;
 410 }
 411
 412
 413
 414
 415 void PresenterTextView::Implementation::SetCanvas (const cppcanvas::CanvasSharedPtr& rpCanvas)
 416 {
 417     mpCanvas = rpCanvas;
 418     mxBitmap = NULL;
 419 }
 420
 421
 422
 423
 424 void PresenterTextView::Implementation::SetSize (const Size aSize)
 425 {
 426     DBG_ASSERT(mpEditEngine!=NULL, "EditEngine missing");
 427
 428     maSize = aSize;
 429     mpEditEngine->SetPaperSize(maSize);
 430     mnTotalHeight = -1;
 431     mxBitmap = NULL;
 432 }
 433
 434
 435
 436
 437 void PresenterTextView::Implementation::SetBackgroundColor (const Color aColor)
 438 {
 439     maBackgroundColor = aColor;
 440     mxBitmap = NULL;
 441
 442     DBG_ASSERT(mpEditEngine!=NULL, "EditEngine missing");
 443     DBG_ASSERT(mpEditEngineItemPool!=NULL, "EditEngineItemPool missing");
 444     mpEditEngine->SetBackgroundColor(aColor);
 445     mpEditEngine->EnableAutoColor(sal_False);
 446     mpEditEngine->ForceAutoColor(sal_False);
 447 }
 448
 449
 450
 451
 452 void PresenterTextView::Implementation::SetTextColor (const Color aColor)
 453 {
 454     maTextColor = aColor;
 455     mxBitmap = NULL;
 456
 457     DBG_ASSERT(mpEditEngineItemPool!=NULL, "EditEngineItemPool missing");
 458     mpEditEngineItemPool->SetPoolDefaultItem(SvxColorItem(aColor, EE_CHAR_COLOR));
 459 }
 460
 461
 462
 463
 464 void PresenterTextView::Implementation::SetFontDescriptor (
 465     const awt::FontDescriptor& rFontDescriptor)
 466 {
 467     mxBitmap = NULL;
 468
 469     DBG_ASSERT(mpEditEngineItemPool!=NULL, "EditEngineItemPool missing");
 470
 471     const sal_Int32 nFontHeight = rFontDescriptor.Height;
 472
 473     SvxFontHeightItem aFontHeight(
 474         Application::GetDefaultDevice()->LogicToPixel(
 475             Size(0, nFontHeight), MapMode (MAP_POINT)).Height(),
 476         100,
 477         EE_CHAR_FONTHEIGHT);
 478     mpEditEngineItemPool->SetPoolDefaultItem( aFontHeight);
 479     aFontHeight.SetWhich (EE_CHAR_FONTHEIGHT_CJK);
 480     mpEditEngineItemPool->SetPoolDefaultItem( aFontHeight);
 481     aFontHeight.SetWhich (EE_CHAR_FONTHEIGHT_CTL);
 482     mpEditEngineItemPool->SetPoolDefaultItem( aFontHeight);
 483
 484     SvxFontItem aSvxFontItem (EE_CHAR_FONTINFO);
 485     aSvxFontItem.SetFamilyName( rFontDescriptor.Name );
 486     mpEditEngineItemPool->SetPoolDefaultItem(aSvxFontItem);
 487
 488     mnTotalHeight = -1;
 489     mxBitmap = NULL;
 490
 491     CheckTop();
 492     mnTotalHeight = -1;
 493 }
 494
 495
 496
 497
 498 sal_Int32 PresenterTextView::Implementation::GetTop (void) const
 499 {
 500     return mnTop;
 501 }
 502
 503
 504
 505
 506 void PresenterTextView::Implementation::SetTop (const sal_Int32 nTop)
 507 {
 508     if (nTop == mnTop)
 509         return;
 510
 511     mnTop = nTop;
 512     mxBitmap = NULL;
 513     CheckTop();
 514 }
 515
 516
 517
 518
 519 void PresenterTextView::Implementation::SetText (const OUString& rText)
 520 {
 521     DBG_ASSERT(mpEditEngine!=NULL, "EditEngine missing");
 522     msText = rText;
 523     mpEditEngine->SetPaperSize(maSize);
 524     mnTotalHeight = -1;
 525     mxBitmap = NULL;
 526 }
 527
 528
 529
 530
 531 sal_Int32 PresenterTextView::Implementation::ParseDistance (const OUString& rsDistance) const
 532 {
 533     DBG_ASSERT(mpEditEngine!=NULL, "EditEngine missing");
 534     sal_Int32 nDistance (0);
 535     if (rsDistance.endsWithAsciiL("px", 2))
 536     {
 537         nDistance = rsDistance.copy(0,rsDistance.getLength()-2).toInt32();
 538     }
 539     else if (rsDistance.endsWithAsciiL("l", 1))
 540     {
 541         const sal_Int32 nLines (rsDistance.copy(0,rsDistance.getLength()-1).toInt32());
 542         // Take the height of the first line as the height of every line.
 543         const sal_uInt32 nFirstLineHeight (mpEditEngine->GetLineHeight(0,0));
 544         nDistance = nFirstLineHeight * nLines;
 545     }
 546
 547     return nDistance;
 548 }
 549
 550
 551
 552
 553 Reference<rendering::XBitmap> PresenterTextView::Implementation::GetBitmap (void)
 554 {
 555     DBG_ASSERT(mpEditEngine!=NULL, "EditEngine missing");
 556
 557     if ( ! mxBitmap.is())
 558     {
 559         if (mpOutputDevice != NULL)
 560             delete mpOutputDevice;
 561         mpOutputDevice = new VirtualDevice(*Application::GetDefaultDevice(), 0, 0);
 562         mpOutputDevice->SetMapMode(MAP_PIXEL);
 563         mpOutputDevice->SetOutputSizePixel(maSize, sal_True);
 564         mpOutputDevice->SetLineColor();
 565         mpOutputDevice->SetFillColor();
 566         mpOutputDevice->SetBackground(Wallpaper());
 567         mpOutputDevice->Erase();
 568
 569         MapMode aMapMode (mpOutputDevice->GetMapMode());
 570         aMapMode.SetOrigin(Point(0,0));
 571         mpOutputDevice->SetMapMode(aMapMode);
 572         const Rectangle aWindowBox (Point(0,0), maSize);
 573         mpOutputDevice->DrawRect(aWindowBox);
 574
 575         mpEditEngine->Clear();
 576         mpEditEngine->SetText(msText);
 577         mpEditEngine->SetPaperSize(maSize);
 578
 579         mpEditEngine->Draw(mpOutputDevice, aWindowBox, Point(0,mnTop));
 580
 581         const BitmapEx aBitmap (mpOutputDevice->GetBitmapEx(Point(0,0), maSize));
 582         mxBitmap = cppcanvas::VCLFactory::getInstance().createBitmap(
 583             mpCanvas,
 584             aBitmap
 585             )->getUNOBitmap();
 586     }
 587     return mxBitmap;
 588 }
 589
 590
 591
 592
 593 sal_Int32 PresenterTextView::Implementation::GetTotalHeight (void)
 594 {
 595     DBG_ASSERT(mpEditEngine!=NULL, "EditEngine missing");
 596
 597     if (mnTotalHeight < 0)
 598     {
 599         if ( ! mxBitmap.is())
 600             GetBitmap();
 601         mnTotalHeight = mpEditEngine->GetTextHeight();
 602     }
 603     return mnTotalHeight;
 604 }
 605
 606
 607
 608
 609 void PresenterTextView::Implementation::CheckTop (void)
 610 {
 611     DBG_ASSERT(mpEditEngine!=NULL, "EditEngine missing");
 612
 613     if (mnTotalHeight < 0)
 614         mnTotalHeight = mpEditEngine->GetTextHeight();
 615     if (mpEditEngine!=NULL && mnTop >= mnTotalHeight)
 616         mnTop = mnTotalHeight - mpEditEngine->GetLineHeight(0,0);
 617
 618     if (mnTotalHeight < maSize.Height())
 619         mnTop = 0;
 620
 621     if (mnTotalHeight - mnTop < maSize.Height())
 622         mnTop = mnTotalHeight - maSize.Height();
 623
 624     if (mnTop < 0)
 625         mnTop = 0;
 626 }
 627
 628
 629 } } // end of namespace ::sd::presenter
 630
 631 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */