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
|
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*
* This file incorporates work covered by the following license notice:
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed
* with this work for additional information regarding copyright
* ownership. The ASF licenses this file to you under the Apache
* License, Version 2.0 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.apache.org/licenses/LICENSE-2.0 .
*/
#ifndef INCLUDED_SD_SOURCE_UI_INC_ACCESSIBLEVIEWFORWARDER_HXX
#define INCLUDED_SD_SOURCE_UI_INC_ACCESSIBLEVIEWFORWARDER_HXX
#include <svx/IAccessibleViewForwarder.hxx>
class SdrPaintView;
class OutputDevice;
namespace accessibility {
/** <p>This class provides the means to transform between internal coordinates
and screen coordinates without giving direct access to the underlying
view. It represents a certain window. A call to
<method>GetVisArea</method> returns the corresponding visible
rectangle.</p>
@attention
Note, that modifications of the underlying view that lead to
different transformations between internal and screen coordinates or
change the validity of the forwarder have to be signaled separately.
*/
class AccessibleViewForwarder
: public IAccessibleViewForwarder
{
public:
//===== internal ========================================================
AccessibleViewForwarder (SdrPaintView* pView, OutputDevice& rDevice);
virtual ~AccessibleViewForwarder (void);
//===== IAccessibleViewforwarder ========================================
/** This method informs you about the state of the forwarder. Do not
use it when the returned value is <false/>.
@return
Return <true/> if the view forwarder is valid and <false/> else.
*/
virtual sal_Bool IsValid (void) const;
/** Returns the area of the underlying document that is visible in the
* corresponding window.
@return
The rectangle of the visible part of the document.
*/
virtual Rectangle GetVisibleArea() const;
/** Transform the specified point from internal coordinates to an
absolute screen position.
@param rPoint
Point in internal coordinates.
@return
The same point but in screen coordinates relative to the upper
left corner of the (current) screen.
*/
virtual Point LogicToPixel (const Point& rPoint) const;
/** Transform the specified size from internal coordinates to a screen
* position.
@param rSize
Size in internal coordinates.
@return
The same size but in screen coordinates.
*/
virtual Size LogicToPixel (const Size& rSize) const;
/** Transform the specified point from absolute screen coordinates to
internal coordinates.
@param rPoint
Point in screen coordinates relative to the upper left corner of
the (current) screen.
@return
The same point but in internal coordinates.
*/
virtual Point PixelToLogic (const Point& rPoint) const;
/** Transform the specified Size from screen coordinates to internal
coordinates.
@param rSize
Size in screen coordinates.
@return
The same size but in internal coordinates.
*/
virtual Size PixelToLogic (const Size& rSize) const;
protected:
SdrPaintView* mpView;
sal_uInt16 mnWindowId;
OutputDevice& mrDevice;
private:
AccessibleViewForwarder (AccessibleViewForwarder&);
AccessibleViewForwarder& operator= (AccessibleViewForwarder&);
};
} // end of namespace accessibility
#endif
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
|
