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1 : /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
2 : /*
3 : * This file is part of the LibreOffice project.
4 : *
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 : #ifndef INCLUDED_CANVAS_CANVASBASE_HXX
21 : #define INCLUDED_CANVAS_CANVASBASE_HXX
22 :
23 : #include <com/sun/star/uno/Reference.hxx>
24 : #include <com/sun/star/rendering/XCanvas.hpp>
25 : #include <com/sun/star/rendering/TextDirection.hpp>
26 : #include <osl/mutex.hxx>
27 : #include <canvas/verifyinput.hxx>
28 :
29 :
30 : namespace canvas
31 : {
32 : /** Helper template to handle XCanvas method forwarding to CanvasHelper
33 :
34 : Use this helper to handle the XCanvas part of your
35 : implementation. In theory, we could have provided CanvasHelper
36 : and CanvasBase as a single template, but that would duplicate
37 : a lot of code now residing in CanvasHelper only.
38 :
39 : This template basically interposes itself between the full
40 : interface you implement (i.e. not restricted to XCanvas. The
41 : problem with UNO partial interface implementation actually is,
42 : that you cannot do it the plain way, since deriving from a
43 : common base subclass always introduces the whole set of pure
44 : virtuals, that your baseclass helper just overrided) and your
45 : implementation class. You then only have to implement the
46 : functionality <em>besides</em> XCanvas.
47 :
48 : <pre>
49 : Example:
50 : typedef ::cppu::WeakComponentImplHelper4< ::com::sun::star::rendering::XSpriteCanvas,
51 : ::com::sun::star::lang::XInitialization,
52 : ::com::sun::star::lang::XServiceInfo,
53 : ::com::sun::star::lang::XServiceName > CanvasBase_Base;
54 : typedef ::canvas::internal::CanvasBase< CanvasBase_Base, CanvasHelper > ExampleCanvas_Base;
55 :
56 : class ExampleCanvas : public ExampleCanvas_Base,
57 : public SpriteSurface,
58 : public RepaintTarget
59 : {
60 : };
61 : </pre>
62 :
63 : @tpl Base
64 : Base class to use, most probably one of the
65 : WeakComponentImplHelperN templates with the appropriate
66 : interfaces. At least XCanvas should be among them (why else
67 : would you use this template, then?). Base class must have an
68 : Base( const Mutex& ) constructor (like the
69 : WeakComponentImplHelperN templates have). As the very least,
70 : the base class must be derived from uno::XInterface, as some
71 : error reporting mechanisms rely on that.
72 :
73 : @tpl CanvasHelper
74 : Canvas helper implementation for the backend in question. This
75 : object will be held as a member of this template class, and
76 : basically gets forwarded all XCanvas API calls. Furthermore,
77 : everytime the canvas API semantically changes the content of
78 : the canvas, CanvasHelper::modifying() will get called
79 : (<em>before</em> the actual modification takes place).
80 :
81 : @tpl Mutex
82 : Lock strategy to use. Defaults to using the
83 : OBaseMutex-provided lock. Everytime one of the methods is
84 : entered, an object of type Mutex is created with m_aMutex as
85 : the sole parameter, and destroyed again when the method scope
86 : is left.
87 :
88 : @tpl UnambiguousBase
89 : Optional unambiguous base class for XInterface of Base. It's
90 : sometimes necessary to specify this parameter, e.g. if Base
91 : derives from multiple UNO interface (were each provides its
92 : own version of XInterface, making the conversion ambiguous)
93 : */
94 : template< class Base,
95 : class CanvasHelper,
96 : class Mutex=::osl::MutexGuard,
97 : class UnambiguousBase=::com::sun::star::uno::XInterface > class CanvasBase :
98 : public Base
99 : {
100 : public:
101 : typedef Base BaseType;
102 : typedef CanvasHelper HelperType;
103 : typedef Mutex MutexType;
104 : typedef UnambiguousBase UnambiguousBaseType;
105 :
106 : /** Create CanvasBase
107 : */
108 0 : CanvasBase() :
109 : maCanvasHelper(),
110 0 : mbSurfaceDirty( true )
111 : {
112 0 : }
113 :
114 0 : virtual void disposeThis()
115 : {
116 0 : MutexType aGuard( BaseType::m_aMutex );
117 :
118 0 : maCanvasHelper.disposing();
119 :
120 : // pass on to base class
121 0 : BaseType::disposeThis();
122 0 : }
123 :
124 : // XCanvas
125 0 : virtual void SAL_CALL clear() throw (::com::sun::star::uno::RuntimeException)
126 : {
127 0 : MutexType aGuard( BaseType::m_aMutex );
128 :
129 0 : mbSurfaceDirty = true;
130 0 : maCanvasHelper.modifying();
131 :
132 0 : maCanvasHelper.clear();
133 0 : }
134 :
135 0 : virtual void SAL_CALL drawPoint( const ::com::sun::star::geometry::RealPoint2D& aPoint,
136 : const ::com::sun::star::rendering::ViewState& viewState,
137 : const ::com::sun::star::rendering::RenderState& renderState ) throw (::com::sun::star::lang::IllegalArgumentException,
138 : ::com::sun::star::uno::RuntimeException)
139 : {
140 0 : tools::verifyArgs(aPoint, viewState, renderState,
141 : BOOST_CURRENT_FUNCTION,
142 : static_cast< UnambiguousBaseType* >(this));
143 :
144 0 : MutexType aGuard( BaseType::m_aMutex );
145 :
146 0 : mbSurfaceDirty = true;
147 0 : maCanvasHelper.modifying();
148 :
149 0 : maCanvasHelper.drawPoint( this, aPoint, viewState, renderState );
150 0 : }
151 :
152 0 : virtual void SAL_CALL drawLine( const ::com::sun::star::geometry::RealPoint2D& aStartPoint,
153 : const ::com::sun::star::geometry::RealPoint2D& aEndPoint,
154 : const ::com::sun::star::rendering::ViewState& viewState,
155 : const ::com::sun::star::rendering::RenderState& renderState ) throw (::com::sun::star::lang::IllegalArgumentException,
156 : ::com::sun::star::uno::RuntimeException)
157 : {
158 0 : tools::verifyArgs(aStartPoint, aEndPoint, viewState, renderState,
159 : BOOST_CURRENT_FUNCTION,
160 : static_cast< UnambiguousBaseType* >(this));
161 :
162 0 : MutexType aGuard( BaseType::m_aMutex );
163 :
164 0 : mbSurfaceDirty = true;
165 0 : maCanvasHelper.modifying();
166 :
167 0 : maCanvasHelper.drawLine( this, aStartPoint, aEndPoint, viewState, renderState );
168 0 : }
169 :
170 0 : virtual void SAL_CALL drawBezier( const ::com::sun::star::geometry::RealBezierSegment2D& aBezierSegment,
171 : const ::com::sun::star::geometry::RealPoint2D& aEndPoint,
172 : const ::com::sun::star::rendering::ViewState& viewState,
173 : const ::com::sun::star::rendering::RenderState& renderState ) throw (::com::sun::star::lang::IllegalArgumentException,
174 : ::com::sun::star::uno::RuntimeException)
175 : {
176 0 : tools::verifyArgs(aBezierSegment, aEndPoint, viewState, renderState,
177 : BOOST_CURRENT_FUNCTION,
178 : static_cast< UnambiguousBaseType* >(this));
179 :
180 0 : MutexType aGuard( BaseType::m_aMutex );
181 :
182 0 : mbSurfaceDirty = true;
183 0 : maCanvasHelper.modifying();
184 :
185 0 : maCanvasHelper.drawBezier( this, aBezierSegment, aEndPoint, viewState, renderState );
186 0 : }
187 :
188 : virtual ::com::sun::star::uno::Reference< ::com::sun::star::rendering::XCachedPrimitive > SAL_CALL
189 0 : drawPolyPolygon( const ::com::sun::star::uno::Reference< ::com::sun::star::rendering::XPolyPolygon2D >& xPolyPolygon,
190 : const ::com::sun::star::rendering::ViewState& viewState,
191 : const ::com::sun::star::rendering::RenderState& renderState ) throw (::com::sun::star::lang::IllegalArgumentException,
192 : ::com::sun::star::uno::RuntimeException)
193 : {
194 0 : tools::verifyArgs(xPolyPolygon, viewState, renderState,
195 : BOOST_CURRENT_FUNCTION,
196 : static_cast< UnambiguousBaseType* >(this));
197 :
198 0 : MutexType aGuard( BaseType::m_aMutex );
199 :
200 0 : mbSurfaceDirty = true;
201 0 : maCanvasHelper.modifying();
202 :
203 0 : return maCanvasHelper.drawPolyPolygon( this, xPolyPolygon, viewState, renderState );
204 : }
205 :
206 : virtual ::com::sun::star::uno::Reference< ::com::sun::star::rendering::XCachedPrimitive > SAL_CALL
207 0 : strokePolyPolygon( const ::com::sun::star::uno::Reference< ::com::sun::star::rendering::XPolyPolygon2D >& xPolyPolygon,
208 : const ::com::sun::star::rendering::ViewState& viewState,
209 : const ::com::sun::star::rendering::RenderState& renderState,
210 : const ::com::sun::star::rendering::StrokeAttributes& strokeAttributes ) throw (::com::sun::star::lang::IllegalArgumentException,
211 : ::com::sun::star::uno::RuntimeException)
212 : {
213 0 : tools::verifyArgs(xPolyPolygon, viewState, renderState, strokeAttributes,
214 : BOOST_CURRENT_FUNCTION,
215 : static_cast< UnambiguousBaseType* >(this));
216 :
217 0 : MutexType aGuard( BaseType::m_aMutex );
218 :
219 0 : mbSurfaceDirty = true;
220 0 : maCanvasHelper.modifying();
221 :
222 0 : return maCanvasHelper.strokePolyPolygon( this, xPolyPolygon, viewState, renderState, strokeAttributes );
223 : }
224 :
225 : virtual ::com::sun::star::uno::Reference< ::com::sun::star::rendering::XCachedPrimitive > SAL_CALL
226 0 : strokeTexturedPolyPolygon( const ::com::sun::star::uno::Reference< ::com::sun::star::rendering::XPolyPolygon2D >& xPolyPolygon,
227 : const ::com::sun::star::rendering::ViewState& viewState,
228 : const ::com::sun::star::rendering::RenderState& renderState,
229 : const ::com::sun::star::uno::Sequence< ::com::sun::star::rendering::Texture >& textures,
230 : const ::com::sun::star::rendering::StrokeAttributes& strokeAttributes ) throw (::com::sun::star::lang::IllegalArgumentException,
231 : ::com::sun::star::uno::RuntimeException)
232 : {
233 0 : tools::verifyArgs(xPolyPolygon, viewState, renderState, strokeAttributes,
234 : BOOST_CURRENT_FUNCTION,
235 : static_cast< UnambiguousBaseType* >(this));
236 :
237 0 : MutexType aGuard( BaseType::m_aMutex );
238 :
239 0 : mbSurfaceDirty = true;
240 0 : maCanvasHelper.modifying();
241 :
242 0 : return maCanvasHelper.strokeTexturedPolyPolygon( this, xPolyPolygon, viewState, renderState, textures, strokeAttributes );
243 : }
244 :
245 : virtual ::com::sun::star::uno::Reference< ::com::sun::star::rendering::XCachedPrimitive > SAL_CALL
246 0 : strokeTextureMappedPolyPolygon( const ::com::sun::star::uno::Reference< ::com::sun::star::rendering::XPolyPolygon2D >& xPolyPolygon,
247 : const ::com::sun::star::rendering::ViewState& viewState,
248 : const ::com::sun::star::rendering::RenderState& renderState,
249 : const ::com::sun::star::uno::Sequence< ::com::sun::star::rendering::Texture >& textures,
250 : const ::com::sun::star::uno::Reference< ::com::sun::star::geometry::XMapping2D >& xMapping,
251 : const ::com::sun::star::rendering::StrokeAttributes& strokeAttributes ) throw (::com::sun::star::lang::IllegalArgumentException,
252 : ::com::sun::star::uno::RuntimeException)
253 : {
254 0 : tools::verifyArgs(xPolyPolygon, viewState, renderState, textures, xMapping, strokeAttributes,
255 : BOOST_CURRENT_FUNCTION,
256 : static_cast< UnambiguousBaseType* >(this));
257 :
258 0 : MutexType aGuard( BaseType::m_aMutex );
259 :
260 0 : mbSurfaceDirty = true;
261 0 : maCanvasHelper.modifying();
262 :
263 0 : return maCanvasHelper.strokeTextureMappedPolyPolygon( this, xPolyPolygon, viewState, renderState, textures, xMapping, strokeAttributes );
264 : }
265 :
266 : virtual ::com::sun::star::uno::Reference< ::com::sun::star::rendering::XPolyPolygon2D > SAL_CALL
267 0 : queryStrokeShapes( const ::com::sun::star::uno::Reference< ::com::sun::star::rendering::XPolyPolygon2D >& xPolyPolygon,
268 : const ::com::sun::star::rendering::ViewState& viewState,
269 : const ::com::sun::star::rendering::RenderState& renderState,
270 : const ::com::sun::star::rendering::StrokeAttributes& strokeAttributes ) throw (::com::sun::star::lang::IllegalArgumentException,
271 : ::com::sun::star::uno::RuntimeException)
272 : {
273 0 : tools::verifyArgs(xPolyPolygon, viewState, renderState, strokeAttributes,
274 : BOOST_CURRENT_FUNCTION,
275 : static_cast< UnambiguousBaseType* >(this));
276 :
277 0 : MutexType aGuard( BaseType::m_aMutex );
278 :
279 0 : mbSurfaceDirty = true;
280 0 : maCanvasHelper.modifying();
281 :
282 0 : return maCanvasHelper.queryStrokeShapes( this, xPolyPolygon, viewState, renderState, strokeAttributes );
283 : }
284 :
285 : virtual ::com::sun::star::uno::Reference< ::com::sun::star::rendering::XCachedPrimitive > SAL_CALL
286 0 : fillPolyPolygon( const ::com::sun::star::uno::Reference< ::com::sun::star::rendering::XPolyPolygon2D >& xPolyPolygon,
287 : const ::com::sun::star::rendering::ViewState& viewState,
288 : const ::com::sun::star::rendering::RenderState& renderState ) throw (::com::sun::star::lang::IllegalArgumentException,
289 : ::com::sun::star::uno::RuntimeException)
290 : {
291 0 : tools::verifyArgs(xPolyPolygon, viewState, renderState,
292 : BOOST_CURRENT_FUNCTION,
293 : static_cast< UnambiguousBaseType* >(this));
294 :
295 0 : MutexType aGuard( BaseType::m_aMutex );
296 :
297 0 : mbSurfaceDirty = true;
298 0 : maCanvasHelper.modifying();
299 :
300 0 : return maCanvasHelper.fillPolyPolygon( this, xPolyPolygon, viewState, renderState );
301 : }
302 :
303 : virtual ::com::sun::star::uno::Reference< ::com::sun::star::rendering::XCachedPrimitive > SAL_CALL
304 0 : fillTexturedPolyPolygon( const ::com::sun::star::uno::Reference< ::com::sun::star::rendering::XPolyPolygon2D >& xPolyPolygon,
305 : const ::com::sun::star::rendering::ViewState& viewState,
306 : const ::com::sun::star::rendering::RenderState& renderState,
307 : const ::com::sun::star::uno::Sequence< ::com::sun::star::rendering::Texture >& textures ) throw (::com::sun::star::lang::IllegalArgumentException,
308 : ::com::sun::star::uno::RuntimeException)
309 : {
310 0 : tools::verifyArgs(xPolyPolygon, viewState, renderState, textures,
311 : BOOST_CURRENT_FUNCTION,
312 : static_cast< UnambiguousBaseType* >(this));
313 :
314 0 : MutexType aGuard( BaseType::m_aMutex );
315 :
316 0 : mbSurfaceDirty = true;
317 0 : maCanvasHelper.modifying();
318 :
319 0 : return maCanvasHelper.fillTexturedPolyPolygon( this, xPolyPolygon, viewState, renderState, textures );
320 : }
321 :
322 : virtual ::com::sun::star::uno::Reference< ::com::sun::star::rendering::XCachedPrimitive > SAL_CALL
323 0 : fillTextureMappedPolyPolygon( const ::com::sun::star::uno::Reference< ::com::sun::star::rendering::XPolyPolygon2D >& xPolyPolygon,
324 : const ::com::sun::star::rendering::ViewState& viewState,
325 : const ::com::sun::star::rendering::RenderState& renderState,
326 : const ::com::sun::star::uno::Sequence< ::com::sun::star::rendering::Texture >& textures,
327 : const ::com::sun::star::uno::Reference< ::com::sun::star::geometry::XMapping2D >& xMapping ) throw (::com::sun::star::lang::IllegalArgumentException, ::com::sun::star::uno::RuntimeException)
328 : {
329 0 : tools::verifyArgs(xPolyPolygon, viewState, renderState, textures, xMapping,
330 : BOOST_CURRENT_FUNCTION,
331 : static_cast< UnambiguousBaseType* >(this));
332 :
333 0 : MutexType aGuard( BaseType::m_aMutex );
334 :
335 0 : mbSurfaceDirty = true;
336 0 : maCanvasHelper.modifying();
337 :
338 0 : return maCanvasHelper.fillTextureMappedPolyPolygon( this, xPolyPolygon, viewState, renderState, textures, xMapping );
339 : }
340 :
341 :
342 : virtual ::com::sun::star::uno::Reference< ::com::sun::star::rendering::XCanvasFont > SAL_CALL
343 0 : createFont( const ::com::sun::star::rendering::FontRequest& fontRequest,
344 : const ::com::sun::star::uno::Sequence< ::com::sun::star::beans::PropertyValue >& extraFontProperties,
345 : const ::com::sun::star::geometry::Matrix2D& fontMatrix ) throw (::com::sun::star::lang::IllegalArgumentException,
346 : ::com::sun::star::uno::RuntimeException)
347 : {
348 0 : tools::verifyArgs(fontRequest,
349 : // dummy, to keep argPos in sync
350 : fontRequest,
351 : fontMatrix,
352 : BOOST_CURRENT_FUNCTION,
353 : static_cast< UnambiguousBaseType* >(this));
354 :
355 0 : MutexType aGuard( BaseType::m_aMutex );
356 :
357 0 : return maCanvasHelper.createFont( this, fontRequest, extraFontProperties, fontMatrix );
358 : }
359 :
360 :
361 : virtual ::com::sun::star::uno::Sequence< ::com::sun::star::rendering::FontInfo > SAL_CALL
362 0 : queryAvailableFonts( const ::com::sun::star::rendering::FontInfo& aFilter,
363 : const ::com::sun::star::uno::Sequence< ::com::sun::star::beans::PropertyValue >& aFontProperties ) throw (::com::sun::star::lang::IllegalArgumentException,
364 : ::com::sun::star::uno::RuntimeException)
365 : {
366 0 : tools::verifyArgs(aFilter,
367 : BOOST_CURRENT_FUNCTION,
368 : static_cast< UnambiguousBaseType* >(this));
369 :
370 0 : MutexType aGuard( BaseType::m_aMutex );
371 :
372 0 : return maCanvasHelper.queryAvailableFonts( this, aFilter, aFontProperties );
373 : }
374 :
375 :
376 : virtual ::com::sun::star::uno::Reference< ::com::sun::star::rendering::XCachedPrimitive > SAL_CALL
377 0 : drawText( const ::com::sun::star::rendering::StringContext& text,
378 : const ::com::sun::star::uno::Reference< ::com::sun::star::rendering::XCanvasFont >& xFont,
379 : const ::com::sun::star::rendering::ViewState& viewState,
380 : const ::com::sun::star::rendering::RenderState& renderState,
381 : sal_Int8 textDirection ) throw (::com::sun::star::lang::IllegalArgumentException,
382 : ::com::sun::star::uno::RuntimeException)
383 : {
384 0 : tools::verifyArgs(xFont, viewState, renderState,
385 : BOOST_CURRENT_FUNCTION,
386 : static_cast< UnambiguousBaseType* >(this));
387 : tools::verifyRange( textDirection,
388 : ::com::sun::star::rendering::TextDirection::WEAK_LEFT_TO_RIGHT,
389 0 : ::com::sun::star::rendering::TextDirection::STRONG_RIGHT_TO_LEFT );
390 :
391 0 : MutexType aGuard( BaseType::m_aMutex );
392 :
393 0 : mbSurfaceDirty = true;
394 0 : maCanvasHelper.modifying();
395 :
396 0 : return maCanvasHelper.drawText( this, text, xFont, viewState, renderState, textDirection );
397 : }
398 :
399 :
400 : virtual ::com::sun::star::uno::Reference< ::com::sun::star::rendering::XCachedPrimitive > SAL_CALL
401 0 : drawTextLayout( const ::com::sun::star::uno::Reference< ::com::sun::star::rendering::XTextLayout >& layoutetText,
402 : const ::com::sun::star::rendering::ViewState& viewState,
403 : const ::com::sun::star::rendering::RenderState& renderState ) throw (::com::sun::star::lang::IllegalArgumentException, ::com::sun::star::uno::RuntimeException)
404 : {
405 0 : tools::verifyArgs(layoutetText, viewState, renderState,
406 : BOOST_CURRENT_FUNCTION,
407 : static_cast< UnambiguousBaseType* >(this));
408 :
409 0 : MutexType aGuard( BaseType::m_aMutex );
410 :
411 0 : mbSurfaceDirty = true;
412 0 : maCanvasHelper.modifying();
413 :
414 0 : return maCanvasHelper.drawTextLayout( this, layoutetText, viewState, renderState );
415 : }
416 :
417 :
418 : virtual ::com::sun::star::uno::Reference< ::com::sun::star::rendering::XCachedPrimitive > SAL_CALL
419 0 : drawBitmap( const ::com::sun::star::uno::Reference< ::com::sun::star::rendering::XBitmap >& xBitmap,
420 : const ::com::sun::star::rendering::ViewState& viewState,
421 : const ::com::sun::star::rendering::RenderState& renderState ) throw (::com::sun::star::lang::IllegalArgumentException, ::com::sun::star::uno::RuntimeException)
422 : {
423 0 : tools::verifyArgs(xBitmap, viewState, renderState,
424 : BOOST_CURRENT_FUNCTION,
425 : static_cast< UnambiguousBaseType* >(this));
426 :
427 0 : MutexType aGuard( BaseType::m_aMutex );
428 :
429 0 : mbSurfaceDirty = true;
430 0 : maCanvasHelper.modifying();
431 :
432 0 : return maCanvasHelper.drawBitmap( this, xBitmap, viewState, renderState );
433 : }
434 :
435 : virtual ::com::sun::star::uno::Reference< ::com::sun::star::rendering::XCachedPrimitive > SAL_CALL
436 0 : drawBitmapModulated( const ::com::sun::star::uno::Reference< ::com::sun::star::rendering::XBitmap >& xBitmap,
437 : const ::com::sun::star::rendering::ViewState& viewState,
438 : const ::com::sun::star::rendering::RenderState& renderState ) throw (::com::sun::star::lang::IllegalArgumentException, ::com::sun::star::uno::RuntimeException)
439 : {
440 0 : tools::verifyArgs(xBitmap, viewState, renderState,
441 : BOOST_CURRENT_FUNCTION,
442 : static_cast< UnambiguousBaseType* >(this));
443 :
444 0 : MutexType aGuard( BaseType::m_aMutex );
445 :
446 0 : mbSurfaceDirty = true;
447 0 : maCanvasHelper.modifying();
448 :
449 0 : return maCanvasHelper.drawBitmapModulated( this, xBitmap, viewState, renderState );
450 : }
451 :
452 : virtual ::com::sun::star::uno::Reference< ::com::sun::star::rendering::XGraphicDevice > SAL_CALL
453 0 : getDevice() throw (::com::sun::star::uno::RuntimeException)
454 : {
455 0 : MutexType aGuard( BaseType::m_aMutex );
456 :
457 0 : return maCanvasHelper.getDevice();
458 : }
459 :
460 : protected:
461 0 : ~CanvasBase() {} // we're a ref-counted UNO class. _We_ destroy ourselves.
462 :
463 : HelperType maCanvasHelper;
464 : mutable bool mbSurfaceDirty;
465 :
466 : private:
467 : CanvasBase( const CanvasBase& );
468 : CanvasBase& operator=( const CanvasBase& );
469 : };
470 : }
471 :
472 : #endif /* INCLUDED_CANVAS_CANVASBASE_HXX */
473 :
474 : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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