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If not, see 23 * <http://www.openoffice.org/license.html> 24 * for a copy of the LGPLv3 License. 25 * 26 ************************************************************************/ 27 28 // MARKER(update_precomp.py): autogen include statement, do not remove 29 #include "precompiled_sdext.hxx" 30 31 #include "PresenterSlidePreview.hxx" 32 #include "PresenterCanvasHelper.hxx" 33 #include "PresenterGeometryHelper.hxx" 34 #include "PresenterPaintManager.hxx" 35 #include <com/sun/star/awt/XWindow.hpp> 36 #include <com/sun/star/awt/XWindowPeer.hpp> 37 #include <com/sun/star/beans/XPropertySet.hpp> 38 #include <com/sun/star/drawing/framework/XConfigurationController.hpp> 39 #include <com/sun/star/drawing/framework/XControllerManager.hpp> 40 #include <com/sun/star/drawing/framework/XPane.hpp> 41 #include <com/sun/star/rendering/CompositeOperation.hpp> 42 43 using namespace ::com::sun::star; 44 using namespace ::com::sun::star::uno; 45 using namespace ::com::sun::star::drawing::framework; 46 using ::rtl::OUString; 47 48 namespace 49 { 50 // Use a super sample factor greater than 1 to achive a poor mans 51 // antialiasing effect for slide previews. 52 const sal_Int16 gnSuperSampleFactor = 2; 53 } 54 55 namespace sdext { namespace presenter { 56 57 //===== PresenterSlidePreview ================================================= 58 59 PresenterSlidePreview::PresenterSlidePreview ( 60 const Reference<XComponentContext>& rxContext, 61 const Reference<XResourceId>& rxViewId, 62 const Reference<XPane>& rxAnchorPane, 63 const ::rtl::Reference<PresenterController>& rpPresenterController) 64 : PresenterSlidePreviewInterfaceBase(m_aMutex), 65 mpPresenterController(rpPresenterController), 66 mxPane(rxAnchorPane), 67 mxViewId(rxViewId), 68 mxPreviewRenderer(), 69 mxPreview(), 70 mxCurrentSlide(), 71 mnSlideAspectRatio(28.0 / 21.0), 72 mxWindow(), 73 mxCanvas() 74 { 75 if ( ! rxContext.is() 76 || ! rxViewId.is() 77 || ! rxAnchorPane.is() 78 || ! rpPresenterController.is()) 79 { 80 throw RuntimeException( 81 OUString::createFromAscii( 82 "PresenterSlidePreview can not be constructed due to empty argument"), 83 static_cast<XWeak*>(this)); 84 } 85 86 mxWindow = rxAnchorPane->getWindow(); 87 mxCanvas = rxAnchorPane->getCanvas(); 88 89 if (mxWindow.is()) 90 { 91 mxWindow->addWindowListener(this); 92 mxWindow->addPaintListener(this); 93 94 Reference<awt::XWindowPeer> xPeer (mxWindow, UNO_QUERY); 95 if (xPeer.is()) 96 xPeer->setBackground(util::Color(0xff000000)); 97 98 mxWindow->setVisible(sal_True); 99 } 100 101 if (mpPresenterController.get() != NULL) 102 mnSlideAspectRatio = mpPresenterController->GetSlideAspectRatio(); 103 104 Reference<lang::XMultiComponentFactory> xFactory (rxContext->getServiceManager(), UNO_QUERY); 105 if (xFactory.is()) 106 mxPreviewRenderer = Reference<drawing::XSlideRenderer>( 107 xFactory->createInstanceWithContext( 108 OUString::createFromAscii("com.sun.star.drawing.SlideRenderer"), 109 rxContext), 110 UNO_QUERY); 111 112 Resize(); 113 } 114 115 116 117 118 PresenterSlidePreview::~PresenterSlidePreview (void) 119 { 120 } 121 122 123 124 125 void SAL_CALL PresenterSlidePreview::disposing (void) 126 { 127 if (mxWindow.is()) 128 { 129 mxWindow->removeWindowListener(this); 130 mxWindow->removePaintListener(this); 131 mxWindow = NULL; 132 mxCanvas = NULL; 133 } 134 135 Reference<lang::XComponent> xComponent (mxPreviewRenderer, UNO_QUERY); 136 if (xComponent.is()) 137 xComponent->dispose(); 138 } 139 140 141 142 143 //----- XResourceId ----------------------------------------------------------- 144 145 Reference<XResourceId> SAL_CALL PresenterSlidePreview::getResourceId (void) 146 throw (RuntimeException) 147 { 148 return mxViewId; 149 } 150 151 152 153 154 sal_Bool SAL_CALL PresenterSlidePreview::isAnchorOnly (void) 155 throw (RuntimeException) 156 { 157 return false; 158 } 159 160 161 162 163 //----- XWindowListener ------------------------------------------------------- 164 165 void SAL_CALL PresenterSlidePreview::windowResized (const awt::WindowEvent& rEvent) 166 throw (RuntimeException) 167 { 168 (void)rEvent; 169 ThrowIfDisposed(); 170 ::osl::MutexGuard aGuard (::osl::Mutex::getGlobalMutex()); 171 Resize(); 172 } 173 174 175 176 177 178 void SAL_CALL PresenterSlidePreview::windowMoved (const awt::WindowEvent& rEvent) 179 throw (RuntimeException) 180 { 181 (void)rEvent; 182 } 183 184 185 186 187 void SAL_CALL PresenterSlidePreview::windowShown (const lang::EventObject& rEvent) 188 throw (RuntimeException) 189 { 190 (void)rEvent; 191 ThrowIfDisposed(); 192 ::osl::MutexGuard aGuard (::osl::Mutex::getGlobalMutex()); 193 Resize(); 194 } 195 196 197 198 199 void SAL_CALL PresenterSlidePreview::windowHidden (const lang::EventObject& rEvent) 200 throw (RuntimeException) 201 { 202 (void)rEvent; 203 } 204 205 206 207 208 //----- XPaintListener -------------------------------------------------------- 209 210 void SAL_CALL PresenterSlidePreview::windowPaint (const awt::PaintEvent& rEvent) 211 throw (RuntimeException) 212 { 213 ThrowIfDisposed(); 214 215 ::osl::MutexGuard aGuard (::osl::Mutex::getGlobalMutex()); 216 if (mxWindow.is()) 217 Paint(awt::Rectangle( 218 rEvent.UpdateRect.X, 219 rEvent.UpdateRect.Y, 220 rEvent.UpdateRect.Width, 221 rEvent.UpdateRect.Height)); 222 } 223 224 225 226 227 //----- lang::XEventListener -------------------------------------------------- 228 229 void SAL_CALL PresenterSlidePreview::disposing (const lang::EventObject& rEvent) 230 throw (RuntimeException) 231 { 232 if (rEvent.Source == mxWindow) 233 { 234 mxWindow = NULL; 235 mxCanvas = NULL; 236 mxPreview = NULL; 237 } 238 } 239 240 241 242 243 //----- XDrawView ------------------------------------------------------------- 244 245 void SAL_CALL PresenterSlidePreview::setCurrentPage (const Reference<drawing::XDrawPage>& rxSlide) 246 throw (RuntimeException) 247 { 248 ThrowIfDisposed(); 249 ::osl::MutexGuard aGuard (::osl::Mutex::getGlobalMutex()); 250 SetSlide(rxSlide); 251 } 252 253 254 255 256 Reference<drawing::XDrawPage> SAL_CALL PresenterSlidePreview::getCurrentPage (void) 257 throw (RuntimeException) 258 { 259 ThrowIfDisposed(); 260 return NULL; 261 } 262 263 264 265 266 //----------------------------------------------------------------------------- 267 268 void PresenterSlidePreview::SetSlide (const Reference<drawing::XDrawPage>& rxPage) 269 { 270 mxCurrentSlide = rxPage; 271 mxPreview = NULL; 272 273 Reference<beans::XPropertySet> xPropertySet (mxCurrentSlide, UNO_QUERY); 274 if (xPropertySet.is()) 275 { 276 awt::Size aSlideSize; 277 try 278 { 279 xPropertySet->getPropertyValue( 280 OUString::createFromAscii("Width")) >>= aSlideSize.Width; 281 xPropertySet->getPropertyValue( 282 OUString::createFromAscii("Height")) >>= aSlideSize.Height; 283 } 284 catch (beans::UnknownPropertyException&) 285 { 286 OSL_ASSERT(false); 287 } 288 } 289 290 // The preview is not transparent, therefore only this window, not its 291 // parent, has to be invalidated. 292 mpPresenterController->GetPaintManager()->Invalidate(mxWindow); 293 } 294 295 296 297 298 void PresenterSlidePreview::Paint (const awt::Rectangle& rBoundingBox) 299 { 300 (void)rBoundingBox; 301 if ( ! mxWindow.is()) 302 return; 303 if ( ! mxCanvas.is()) 304 return; 305 if ( ! mxPreviewRenderer.is()) 306 return; 307 308 // Make sure that a preview in the correct size exists. 309 awt::Rectangle aWindowBox (mxWindow->getPosSize()); 310 311 if ( ! mxPreview.is() && mxCurrentSlide.is()) 312 { 313 // Create a new preview bitmap. 314 mxPreview = mxPreviewRenderer->createPreviewForCanvas( 315 mxCurrentSlide, 316 awt::Size(aWindowBox.Width, aWindowBox.Height), 317 gnSuperSampleFactor, 318 mxCanvas); 319 } 320 321 // Determine the bounding box of the preview. 322 awt::Rectangle aPreviewBox; 323 if (mxPreview.is()) 324 { 325 const geometry::IntegerSize2D aPreviewSize (mxPreview->getSize()); 326 aPreviewBox = awt::Rectangle( 327 (aWindowBox.Width - aPreviewSize.Width)/2, 328 (aWindowBox.Height - aPreviewSize.Height)/2, 329 aPreviewSize.Width, 330 aPreviewSize.Height); 331 } 332 else 333 { 334 if (mnSlideAspectRatio > 0) 335 { 336 const awt::Size aPreviewSize (mxPreviewRenderer->calculatePreviewSize( 337 mnSlideAspectRatio,awt::Size(aWindowBox.Width, aWindowBox.Height))); 338 aPreviewBox = awt::Rectangle( 339 (aWindowBox.Width - aPreviewSize.Width)/2, 340 (aWindowBox.Height - aPreviewSize.Height)/2, 341 aPreviewSize.Width, 342 aPreviewSize.Height); 343 } 344 } 345 346 // Paint the background. 347 mpPresenterController->GetCanvasHelper()->Paint( 348 mpPresenterController->GetViewBackground(mxViewId->getResourceURL()), 349 mxCanvas, 350 rBoundingBox, 351 awt::Rectangle(0,0,aWindowBox.Width,aWindowBox.Height), 352 aPreviewBox); 353 354 // Paint the preview. 355 const rendering::ViewState aViewState( 356 geometry::AffineMatrix2D(1,0,0, 0,1,0), 357 NULL); 358 359 Sequence<double> aBackgroundColor(4); 360 rendering::RenderState aRenderState ( 361 geometry::AffineMatrix2D(1, 0, aPreviewBox.X, 0, 1, aPreviewBox.Y), 362 NULL, 363 aBackgroundColor, 364 rendering::CompositeOperation::SOURCE); 365 PresenterCanvasHelper::SetDeviceColor(aRenderState, 0x00000000); 366 if (mxPreview.is()) 367 { 368 mxCanvas->drawBitmap(mxPreview, aViewState, aRenderState); 369 } 370 else 371 { 372 if (mnSlideAspectRatio > 0) 373 { 374 Reference<rendering::XPolyPolygon2D> xPolygon ( 375 PresenterGeometryHelper::CreatePolygon(aPreviewBox, mxCanvas->getDevice())); 376 if (xPolygon.is()) 377 mxCanvas->fillPolyPolygon(xPolygon, aViewState, aRenderState); 378 } 379 } 380 381 Reference<rendering::XSpriteCanvas> xSpriteCanvas (mxCanvas, UNO_QUERY); 382 if (xSpriteCanvas.is()) 383 xSpriteCanvas->updateScreen(sal_False); 384 } 385 386 387 388 389 void PresenterSlidePreview::Resize (void) 390 { 391 if (mxPreviewRenderer.is() && mxPreview.is()) 392 { 393 const awt::Rectangle aWindowBox (mxWindow->getPosSize()); 394 const awt::Size aNewPreviewSize (mxPreviewRenderer->calculatePreviewSize( 395 mnSlideAspectRatio, 396 awt::Size(aWindowBox.Width, aWindowBox.Height))); 397 const geometry::IntegerSize2D aPreviewSize (mxPreview->getSize()); 398 if (aNewPreviewSize.Width==aPreviewSize.Width 399 && aNewPreviewSize.Height==aPreviewSize.Height) 400 { 401 // The size of the window may have changed but the preview would 402 // be painted in the same size (but not necessarily at the same 403 // position.) 404 return; 405 } 406 } 407 SetSlide(mxCurrentSlide); 408 } 409 410 411 412 413 void PresenterSlidePreview::ThrowIfDisposed (void) 414 throw (::com::sun::star::lang::DisposedException) 415 { 416 if (PresenterSlidePreviewInterfaceBase::rBHelper.bDisposed || PresenterSlidePreviewInterfaceBase::rBHelper.bInDispose) 417 { 418 throw lang::DisposedException ( 419 ::rtl::OUString(RTL_CONSTASCII_USTRINGPARAM( 420 "PresenterSlidePreview object has already been disposed")), 421 static_cast<uno::XWeak*>(this)); 422 } 423 } 424 425 426 } } // end of namespace ::sd::presenter 427 428