1 /**************************************************************
2  *
3  * Licensed to the Apache Software Foundation (ASF) under one
4  * or more contributor license agreements.  See the NOTICE file
5  * distributed with this work for additional information
6  * regarding copyright ownership.  The ASF licenses this file
7  * to you under the Apache License, Version 2.0 (the
8  * "License"); you may not use this file except in compliance
9  * with the License.  You may obtain a copy of the License at
10  *
11  *   http://www.apache.org/licenses/LICENSE-2.0
12  *
13  * Unless required by applicable law or agreed to in writing,
14  * software distributed under the License is distributed on an
15  * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
16  * KIND, either express or implied.  See the License for the
17  * specific language governing permissions and limitations
18  * under the License.
19  *
20  *************************************************************/
21 
22 
23 
24 #ifndef PAGE_LIST_WATCHER_HXX
25 #define PAGE_LIST_WATCHER_HXX
26 
27 #include "pres.hxx"
28 #include <sal/types.h>
29 #include <vector>
30 
31 class SdPage;
32 class SdrModel;
33 
34 /** Maintain a map of page indices to page objects for faster access that
35     remains valid during deletions and insertions of pages (#109538#).
36 */
37 class ImpPageListWatcher
38 {
39 protected:
40 	// typedefs for a vector of SdPages
41 	typedef ::std::vector< SdPage* > SdPageVector;
42 
43 	const SdrModel&					mrModel;
44 
45 	SdPageVector					maPageVectorStandard;
46 	SdPageVector					maPageVectorNotes;
47 	SdPage*							mpHandoutPage;
48 
49 	sal_Bool						mbPageListValid;
50 
51 	void ImpRecreateSortedPageListOnDemand();
52 	virtual sal_uInt32 ImpGetPageCount() const = 0;
53 
54     /** Return the page with the given index.
55         @param nIndex
56             When given an invalid index then NULL is returned.
57     */
58 	virtual SdPage* ImpGetPage (sal_uInt32 nIndex) const = 0;
59 
60 public:
61 	ImpPageListWatcher(const SdrModel& rModel);
62 	virtual ~ImpPageListWatcher();
63 
Invalidate()64 	void Invalidate() { mbPageListValid = sal_False; }
65 	SdPage* GetSdPage(PageKind ePgKind, sal_uInt32 nPgNum = 0L);
66 	sal_uInt32 GetSdPageCount(PageKind ePgKind);
67 };
68 
69 //////////////////////////////////////////////////////////////////////////////
70 
71 class ImpDrawPageListWatcher : public ImpPageListWatcher
72 {
73 protected:
74 	virtual sal_uInt32 ImpGetPageCount() const;
75 	virtual SdPage* ImpGetPage(sal_uInt32 nIndex) const;
76 
77 public:
78 	ImpDrawPageListWatcher(const SdrModel& rModel);
79 	virtual ~ImpDrawPageListWatcher();
80 };
81 
82 //////////////////////////////////////////////////////////////////////////////
83 
84 class ImpMasterPageListWatcher : public ImpPageListWatcher
85 {
86 protected:
87 	virtual sal_uInt32 ImpGetPageCount() const;
88 	virtual SdPage* ImpGetPage(sal_uInt32 nIndex) const;
89 
90 public:
91 	ImpMasterPageListWatcher(const SdrModel& rModel);
92 	virtual ~ImpMasterPageListWatcher();
93 };
94 
95 #endif
96