1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
|
/***************************************************************************
* Copyright (C) 2004 by Enrico Ros <[email protected]> *
* Copyright (C) 2004-2005 by Albert Astals Cid <[email protected]> *
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
***************************************************************************/
#ifndef _KPDF_DOCUMENT_H_
#define _KPDF_DOCUMENT_H_
#include <tqobject.h>
#include <tqvaluevector.h>
#include <tqstring.h>
#include <tqdom.h>
#include <kmimetype.h>
class KPDFPage;
class KPDFLink;
class DocumentObserver;
class DocumentViewport;
class DocumentInfo;
class DocumentSynopsis;
class Generator;
class PixmapRequest;
class KListView;
class KPrinter;
class KURL;
/**
* @short The Document. Heart of everything. Actions take place here.
*
* The Document is the main object in KPDF. All views query the Document to
* get data/properties or even for accessing pages (in a 'const' way).
*
* It is designed to keep it detached from the document type (pdf, ps, you
* name it..) so whenever you want to get some data, it asks its internals
* generator to do the job and return results in a format-indepedent way.
*
* Apart from the generator (the currently running one) the document stores
* all the Pages ('KPDFPage' class) of the current document in a vector and
* notifies all the registered DocumentObservers when some content changes.
*
* For a better understanding of hieracies @see README.internals.png
* @see DocumentObserver, KPDFPage
*/
class KPDFDocument : public TQObject
{
Q_OBJECT
TQ_OBJECT
public:
KPDFDocument( TQWidget *widget );
~KPDFDocument();
// document handling
bool openDocument( const TQString & docFile, const KURL & url, const KMimeType::Ptr &mime );
void closeDocument();
// misc methods
void addObserver( DocumentObserver * pObserver );
void removeObserver( DocumentObserver * pObserver );
void reparseConfig();
// enum definitions
enum Permission { AllowModify = 1, AllowCopy = 2, AllowPrint = 4, AllowNotes = 8 };
// returns the widget where the document is shown
TQWidget *widget() const;
// query methods (const ones)
bool isOpened() const;
const DocumentInfo * documentInfo() const;
const DocumentSynopsis * documentSynopsis() const;
const KPDFPage * page( uint page ) const;
const DocumentViewport & viewport() const;
uint currentPage() const;
uint pages() const;
KURL currentDocument() const;
bool isAllowed( int /*Document::Permisison(s)*/ ) const;
bool historyAtBegin() const;
bool historyAtEnd() const;
TQString getMetaData( const TQString & key, const TQString & option = TQString() ) const;
bool supportsSearching() const;
bool hasFonts() const;
void putFontInfo(KListView *list);
// perform actions on document / pages
void setViewportPage( int page, int excludeId = -1, bool smoothMove = false );
void setViewport( const DocumentViewport & viewport, int excludeId = -1, bool smoothMove = false );
void setPrevViewport();
void setNextViewport();
void setNextDocumentViewport( const DocumentViewport & viewport );
void requestPixmaps( const TQValueList< PixmapRequest * > & requests );
void requestTextPage( uint page );
enum SearchType { NextMatch, PrevMatch, AllDoc, GoogleAll, GoogleAny };
bool searchText( int searchID, const TQString & text, bool fromStart, bool caseSensitive,
SearchType type, bool moveViewport, const TQColor & color, bool noDialogs = false );
bool continueSearch( int searchID );
void resetSearch( int searchID );
bool continueLastSearch();
void toggleBookmark( int page );
void processLink( const KPDFLink * link );
bool print( KPrinter &printer );
// notifications sent by generator
void requestDone( PixmapRequest * request );
signals:
void close();
void quit();
void linkFind();
void linkGoToPage();
void openURL(const KURL &url);
void linkPresentation();
void linkEndPresentation();
private:
void sendGeneratorRequest();
// memory management related functions
void cleanupPixmapMemory( int bytesOffset = 0 );
int getTotalMemory();
int getFreeMemory();
// more private functions
void loadDocumentInfo();
TQString giveAbsolutePath( const TQString & fileName );
bool openRelativeFile( const TQString & fileName );
Generator * generator;
TQValueVector< KPDFPage * > pages_vector;
class KPDFDocumentPrivate * d;
private slots:
void saveDocumentInfo() const;
void slotTimedMemoryCheck();
};
/**
* @short A view on the document.
*
* The Viewport structure is the 'current view' over the document. Contained
* data is broadcasted between observers to syncronize their viewports to get
* the 'I scroll one view and others scroll too' views.
*/
class DocumentViewport
{
public:
/** data fields **/
// the page nearest the center of the viewport
int pageNumber;
// enum definitions
enum Position { Center = 1, TopLeft = 2};
// if reCenter.enabled, this contains the viewport center
struct {
bool enabled;
double normalizedX;
double normalizedY;
Position pos;
} rePos;
// if autoFit.enabled, page must be autofitted in the viewport
struct {
bool enabled;
bool width;
bool height;
} autoFit;
/** class methods **/
// allowed constructors, don't use others
DocumentViewport( int pageNumber = -1 );
DocumentViewport( const TQString & xmlDesc );
TQString toString() const;
bool operator==( const DocumentViewport & vp ) const;
};
/**
* @short A dom tree containing informations about the document.
*
* The Info structure can be filled in by generators to display metadata
* about the currently opened file.
*/
class DocumentInfo : public TQDomDocument
{
public:
DocumentInfo();
/**
* Sets a value for a special key. The title should be an i18n'ed
* string, since it's used in the document information dialog.
*/
void set( const TQString &key, const TQString &value,
const TQString &title = TQString() );
/**
* Returns the value for a given key or an empty string when the
* key doesn't exist.
*/
TQString get( const TQString &key ) const;
};
/**
* @short A Dom tree that describes the Table of Contents.
*
* The Synopsis (TOC or Table Of Contents for friends) is represented via
* a dom tree where each nod has an internal name (displayed in the listview)
* and one or more attributes.
*
* In the tree the tag name is the 'screen' name of the entry. A tag can have
* attributes. Here follows the list of tag attributes with meaning:
* - Viewport: A string description of the referred viewport
* - ViewportName: A 'named reference' to the viewport that must be converted
* using getMetaData( "NamedViewport", *viewport_name* )
*/
class DocumentSynopsis : public TQDomDocument
{
public:
DocumentSynopsis();
};
#endif
|
