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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 : : #include <drawinglayer/primitive2d/pagepreviewprimitive2d.hxx>
21 : : #include <drawinglayer/primitive2d/drawinglayer_primitivetypes2d.hxx>
22 : : #include <drawinglayer/primitive2d/maskprimitive2d.hxx>
23 : : #include <basegfx/polygon/b2dpolygontools.hxx>
24 : : #include <basegfx/polygon/b2dpolygon.hxx>
25 : : #include <drawinglayer/primitive2d/transformprimitive2d.hxx>
26 : : #include <basegfx/matrix/b2dhommatrixtools.hxx>
27 : :
28 : : //////////////////////////////////////////////////////////////////////////////
29 : :
30 : : using namespace com::sun::star;
31 : :
32 : : //////////////////////////////////////////////////////////////////////////////
33 : :
34 : : namespace drawinglayer
35 : : {
36 : : namespace primitive2d
37 : : {
38 : 0 : Primitive2DSequence PagePreviewPrimitive2D::create2DDecomposition(const geometry::ViewInformation2D& rViewInformation) const
39 : : {
40 [ # # ]: 0 : Primitive2DSequence xRetval;
41 [ # # ]: 0 : Primitive2DSequence aContent(getPageContent());
42 : :
43 [ # # # # : 0 : if(aContent.hasElements()
# # ][ # # ]
44 [ # # ][ # # ]: 0 : && basegfx::fTools::more(getContentWidth(), 0.0)
45 [ # # ][ # # ]: 0 : && basegfx::fTools::more(getContentHeight(), 0.0))
46 : : {
47 : : // the decomposed matrix will be needed
48 : 0 : basegfx::B2DVector aScale, aTranslate;
49 : : double fRotate, fShearX;
50 [ # # ]: 0 : getTransform().decompose(aScale, aTranslate, fRotate, fShearX);
51 : :
52 [ # # ][ # # ]: 0 : if(basegfx::fTools::more(aScale.getX(), 0.0) && basegfx::fTools::more(aScale.getY(), 0.0))
[ # # ][ # # ]
[ # # ][ # # ]
[ # # ]
53 : : {
54 : : // check if content overlaps with tageted size and needs to be embedded with a
55 : : // clipping primitive
56 [ # # ]: 0 : const basegfx::B2DRange aRealContentRange(getB2DRangeFromPrimitive2DSequence(aContent, rViewInformation));
57 [ # # ]: 0 : const basegfx::B2DRange aAllowedContentRange(0.0, 0.0, getContentWidth(), getContentHeight());
58 : :
59 [ # # ][ # # ]: 0 : if(!aAllowedContentRange.isInside(aRealContentRange))
60 : : {
61 : : const Primitive2DReference xReferenceA(
62 : : new MaskPrimitive2D(
63 : : basegfx::B2DPolyPolygon(
64 [ # # ][ # # ]: 0 : basegfx::tools::createPolygonFromRect(aAllowedContentRange)), aContent));
[ # # ][ # # ]
[ # # ][ # # ]
[ # # ]
65 [ # # ][ # # ]: 0 : aContent = Primitive2DSequence(&xReferenceA, 1);
[ # # ]
66 : : }
67 : :
68 : : // create a mapping from content to object.
69 [ # # ]: 0 : basegfx::B2DHomMatrix aPageTrans;
70 : :
71 [ # # ]: 0 : if(getKeepAspectRatio())
72 : : {
73 : : // #i101075# when keeping the aspect ratio is wanted, it is necessary to calculate
74 : : // an equidistant scaling in X and Y and a corresponding translation to
75 : : // center the output. Calculate needed scale factors
76 : 0 : const double fScaleX(aScale.getX() / getContentWidth());
77 : 0 : const double fScaleY(aScale.getY() / getContentHeight());
78 : :
79 : : // to keep the aspect, use the smaller scale and adapt missing size by translation
80 [ # # ]: 0 : if(fScaleX < fScaleY)
81 : : {
82 : : // height needs to be adapted
83 : 0 : const double fNeededHeight(aScale.getY() / fScaleX);
84 : 0 : const double fSpaceToAdd(fNeededHeight - getContentHeight());
85 : :
86 [ # # ]: 0 : aPageTrans.translate(0.0, fSpaceToAdd * 0.5);
87 [ # # ]: 0 : aPageTrans.scale(fScaleX, aScale.getY() / fNeededHeight);
88 : : }
89 : : else
90 : : {
91 : : // width needs to be adapted
92 : 0 : const double fNeededWidth(aScale.getX() / fScaleY);
93 : 0 : const double fSpaceToAdd(fNeededWidth - getContentWidth());
94 : :
95 [ # # ]: 0 : aPageTrans.translate(fSpaceToAdd * 0.5, 0.0);
96 [ # # ]: 0 : aPageTrans.scale(aScale.getX() / fNeededWidth, fScaleY);
97 : : }
98 : :
99 : : // add the missing object transformation aspects
100 : : const basegfx::B2DHomMatrix aCombined(basegfx::tools::createShearXRotateTranslateB2DHomMatrix(
101 [ # # ]: 0 : fShearX, fRotate, aTranslate.getX(), aTranslate.getY()));
102 [ # # ][ # # ]: 0 : aPageTrans = aCombined * aPageTrans;
[ # # ][ # # ]
103 : : }
104 : : else
105 : : {
106 : : // completely scale to PageObject size. Scale to unit size.
107 [ # # ]: 0 : aPageTrans.scale(1.0/ getContentWidth(), 1.0 / getContentHeight());
108 : :
109 : : // apply object matrix
110 [ # # ]: 0 : aPageTrans *= getTransform();
111 : : }
112 : :
113 : : // embed in necessary transformation to map from SdrPage to SdrPageObject
114 [ # # ][ # # ]: 0 : const Primitive2DReference xReferenceB(new TransformPrimitive2D(aPageTrans, aContent));
[ # # ]
115 [ # # ][ # # ]: 0 : xRetval = Primitive2DSequence(&xReferenceB, 1);
[ # # ][ # # ]
116 : 0 : }
117 : : }
118 : :
119 [ # # ]: 0 : return xRetval;
120 : : }
121 : :
122 : 0 : PagePreviewPrimitive2D::PagePreviewPrimitive2D(
123 : : const ::com::sun::star::uno::Reference< ::com::sun::star::drawing::XDrawPage >& rxDrawPage,
124 : : const basegfx::B2DHomMatrix& rTransform,
125 : : double fContentWidth,
126 : : double fContentHeight,
127 : : const Primitive2DSequence& rPageContent,
128 : : bool bKeepAspectRatio)
129 : : : BufferedDecompositionPrimitive2D(),
130 : : mxDrawPage(rxDrawPage),
131 : : maPageContent(rPageContent),
132 : : maTransform(rTransform),
133 : : mfContentWidth(fContentWidth),
134 : : mfContentHeight(fContentHeight),
135 [ # # ][ # # ]: 0 : mbKeepAspectRatio(bKeepAspectRatio)
136 : : {
137 : 0 : }
138 : :
139 : 0 : bool PagePreviewPrimitive2D::operator==(const BasePrimitive2D& rPrimitive) const
140 : : {
141 [ # # ]: 0 : if(BasePrimitive2D::operator==(rPrimitive))
142 : : {
143 : 0 : const PagePreviewPrimitive2D& rCompare = static_cast< const PagePreviewPrimitive2D& >(rPrimitive);
144 : :
145 : 0 : return (getXDrawPage() == rCompare.getXDrawPage()
146 : 0 : && getPageContent() == rCompare.getPageContent()
147 : 0 : && getTransform() == rCompare.getTransform()
148 : 0 : && getContentWidth() == rCompare.getContentWidth()
149 : 0 : && getContentHeight() == rCompare.getContentHeight()
150 [ # # ][ # # : 0 : && getKeepAspectRatio() == rCompare.getKeepAspectRatio());
# # # # #
# # # ]
151 : : }
152 : :
153 : 0 : return false;
154 : : }
155 : :
156 : 0 : basegfx::B2DRange PagePreviewPrimitive2D::getB2DRange(const geometry::ViewInformation2D& /*rViewInformation`*/) const
157 : : {
158 : : // nothing is allowed to stick out of a PagePreviewPrimitive, thus we
159 : : // can quickly deliver our range here
160 : 0 : basegfx::B2DRange aRetval(0.0, 0.0, 1.0, 1.0);
161 : 0 : aRetval.transform(getTransform());
162 : 0 : return aRetval;
163 : : }
164 : :
165 : : // provide unique ID
166 : 0 : ImplPrimitrive2DIDBlock(PagePreviewPrimitive2D, PRIMITIVE2D_ID_PAGEPREVIEWPRIMITIVE2D)
167 : :
168 : : } // end of namespace primitive2d
169 : : } // end of namespace drawinglayer
170 : :
171 : : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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