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
|
/* -*- 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 .
*/
#include <vcl/GraphicNativeTransform.hxx>
#include <vcl/gfxlink.hxx>
#include <vcl/graphicfilter.hxx>
#include <com/sun/star/uno/Sequence.hxx>
#include <com/sun/star/beans/XPropertySet.hpp>
#include "jpeg/Exif.hxx"
#include "jpeg/JpegTransform.hxx"
GraphicNativeTransform::GraphicNativeTransform(Graphic& rGraphic) :
mrGraphic(rGraphic)
{}
GraphicNativeTransform::~GraphicNativeTransform()
{}
bool GraphicNativeTransform::canBeRotated()
{
GfxLink aLink = mrGraphic.GetLink();
// Don't allow rotation on animations for now
if (mrGraphic.IsAnimated())
{
return false;
}
if ( aLink.GetType() == GFX_LINK_TYPE_NATIVE_JPG
|| aLink.GetType() == GFX_LINK_TYPE_NATIVE_PNG
|| aLink.GetType() == GFX_LINK_TYPE_NATIVE_GIF
|| aLink.GetType() == GFX_LINK_TYPE_NONE)
{
return true;
}
return false;
}
bool GraphicNativeTransform::rotate(sal_uInt16 aInputRotation)
{
// Rotation can be between 0 and 3600
sal_uInt16 aRotation = aInputRotation % 3600;
if (aRotation == 0)
{
return true; // No rotation is needed
}
else if (aRotation != 900 && aRotation != 1800 && aRotation != 2700)
{
return false;
}
GfxLink aLink = mrGraphic.GetLink();
if ( aLink.GetType() == GFX_LINK_TYPE_NATIVE_JPG )
{
return rotateJPEG(aRotation);
}
else if ( aLink.GetType() == GFX_LINK_TYPE_NATIVE_PNG )
{
return rotateGeneric(aRotation, OUString("png"));
}
else if ( aLink.GetType() == GFX_LINK_TYPE_NATIVE_GIF )
{
return rotateGeneric(aRotation, OUString("gif"));
}
else if ( aLink.GetType() == GFX_LINK_TYPE_NONE )
{
return rotateBitmapOnly(aRotation);
}
return false;
}
bool GraphicNativeTransform::rotateBitmapOnly(sal_uInt16 aRotation)
{
if (mrGraphic.IsAnimated())
{
return false;
}
BitmapEx aBitmap = mrGraphic.GetBitmapEx();
aBitmap.Rotate(aRotation, COL_BLACK);
mrGraphic = aBitmap;
return true;
}
bool GraphicNativeTransform::rotateGeneric(sal_uInt16 aRotation, OUString aType)
{
// Can't rotate animations yet
if (mrGraphic.IsAnimated())
{
return false;
}
SvMemoryStream aStream;
GraphicFilter& rFilter = GraphicFilter::GetGraphicFilter();
css::uno::Sequence< css::beans::PropertyValue > aFilterData( 3 );
aFilterData[ 0 ].Name = "Interlaced";
aFilterData[ 0 ].Value <<= (sal_Int32) 0;
aFilterData[ 1 ].Name = "Compression";
aFilterData[ 1 ].Value <<= (sal_Int32) 9;
aFilterData[ 2 ].Name = "Quality";
aFilterData[ 2 ].Value <<= (sal_Int32) 90;
sal_uInt16 nFilterFormat = rFilter.GetExportFormatNumberForShortName( aType );
BitmapEx aBitmap = mrGraphic.GetBitmapEx();
aBitmap.Rotate(aRotation, COL_BLACK);
rFilter.ExportGraphic( aBitmap, OUString( "none" ), aStream, nFilterFormat, &aFilterData );
aStream.Seek( STREAM_SEEK_TO_BEGIN );
Graphic aGraphic;
rFilter.ImportGraphic( aGraphic, OUString("import"), aStream );
mrGraphic = aGraphic;
return true;
}
bool GraphicNativeTransform::rotateJPEG(sal_uInt16 aRotation)
{
GfxLink aLink = mrGraphic.GetLink();
SvMemoryStream aSourceStream;
aSourceStream.Write(aLink.GetData(), aLink.GetDataSize());
aSourceStream.Seek( STREAM_SEEK_TO_BEGIN );
Orientation aOrientation = TOP_LEFT;
Exif exif;
if ( exif.read(aSourceStream) )
{
aOrientation = exif.getOrientation();
}
SvMemoryStream aTargetStream;
JpegTransform tranform(aSourceStream, aTargetStream);
tranform.setRotate(aRotation);
tranform.perform();
aTargetStream.Seek( STREAM_SEEK_TO_BEGIN );
// Reset orientation in exif if needed
if ( exif.hasExif() && aOrientation != TOP_LEFT)
{
exif.setOrientation(TOP_LEFT);
exif.write(aTargetStream);
}
aTargetStream.Seek( STREAM_SEEK_TO_END );
sal_uInt32 aBufferSize = aTargetStream.Tell();
sal_uInt8* pBuffer = new sal_uInt8[ aBufferSize ];
aTargetStream.Seek( STREAM_SEEK_TO_BEGIN );
aTargetStream.Read( pBuffer, aBufferSize );
BitmapEx aBitmap = mrGraphic.GetBitmapEx();
aBitmap.Rotate(aRotation, COL_BLACK);
mrGraphic = aBitmap;
mrGraphic.SetLink( GfxLink( pBuffer, aBufferSize, aLink.GetType(), sal_True ) );
return true;
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
|
