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1 /* | 1 /* |
2 * Copyright (C) 2004, 2005, 2008 Nikolas Zimmermann <zimmermann@kde.org> | 2 * Copyright (C) 2004, 2005, 2008 Nikolas Zimmermann <zimmermann@kde.org> |
3 * Copyright (C) 2004, 2005, 2006 Rob Buis <buis@kde.org> | 3 * Copyright (C) 2004, 2005, 2006 Rob Buis <buis@kde.org> |
4 * Copyright (C) 2014 Google, Inc. | 4 * Copyright (C) 2014 Google, Inc. |
5 * | 5 * |
6 * This library is free software; you can redistribute it and/or | 6 * This library is free software; you can redistribute it and/or |
7 * modify it under the terms of the GNU Library General Public | 7 * modify it under the terms of the GNU Library General Public |
8 * License as published by the Free Software Foundation; either | 8 * License as published by the Free Software Foundation; either |
9 * version 2 of the License, or (at your option) any later version. | 9 * version 2 of the License, or (at your option) any later version. |
10 * | 10 * |
11 * This library is distributed in the hope that it will be useful, | 11 * This library is distributed in the hope that it will be useful, |
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of | 12 * but WITHOUT ANY WARRANTY; without even the implied warranty of |
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | 13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
14 * Library General Public License for more details. | 14 * Library General Public License for more details. |
15 * | 15 * |
16 * You should have received a copy of the GNU Library General Public License | 16 * You should have received a copy of the GNU Library General Public License |
17 * along with this library; see the file COPYING.LIB. If not, write to | 17 * along with this library; see the file COPYING.LIB. If not, write to |
18 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, | 18 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, |
19 * Boston, MA 02110-1301, USA. | 19 * Boston, MA 02110-1301, USA. |
20 */ | 20 */ |
21 | 21 |
22 #include "core/svg/SVGGraphicsElement.h" | 22 #include "core/svg/SVGGraphicsElement.h" |
23 | 23 |
24 #include "core/SVGNames.h" | 24 #include "core/SVGNames.h" |
25 #include "core/dom/StyleChangeReason.h" | 25 #include "core/dom/StyleChangeReason.h" |
26 #include "core/frame/FrameView.h" | |
27 #include "core/layout/LayoutObject.h" | 26 #include "core/layout/LayoutObject.h" |
28 #include "core/layout/svg/LayoutSVGRoot.h" | |
29 #include "core/svg/SVGElementRareData.h" | 27 #include "core/svg/SVGElementRareData.h" |
30 #include "core/svg/SVGMatrixTearOff.h" | 28 #include "core/svg/SVGMatrixTearOff.h" |
31 #include "core/svg/SVGRectTearOff.h" | 29 #include "core/svg/SVGRectTearOff.h" |
32 #include "platform/transforms/AffineTransform.h" | 30 #include "platform/transforms/AffineTransform.h" |
33 | 31 |
34 namespace blink { | 32 namespace blink { |
35 | 33 |
36 SVGGraphicsElement::SVGGraphicsElement(const QualifiedName& tag_name, | 34 SVGGraphicsElement::SVGGraphicsElement(const QualifiedName& tag_name, |
37 Document& document, | 35 Document& document, |
38 ConstructionType construction_type) | 36 ConstructionType construction_type) |
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66 | 64 |
67 AffineTransform ctm; | 65 AffineTransform ctm; |
68 bool done = false; | 66 bool done = false; |
69 | 67 |
70 for (const Element* current_element = this; current_element && !done; | 68 for (const Element* current_element = this; current_element && !done; |
71 current_element = current_element->ParentOrShadowHostElement()) { | 69 current_element = current_element->ParentOrShadowHostElement()) { |
72 if (!current_element->IsSVGElement()) | 70 if (!current_element->IsSVGElement()) |
73 break; | 71 break; |
74 | 72 |
75 ctm = ToSVGElement(current_element) | 73 ctm = ToSVGElement(current_element) |
76 ->LocalCoordinateSpaceTransform() | 74 ->LocalCoordinateSpaceTransform(mode) |
77 .Multiply(ctm); | 75 .Multiply(ctm); |
78 | 76 |
79 switch (mode) { | 77 switch (mode) { |
80 case kNearestViewportScope: | 78 case kNearestViewportScope: |
81 // Stop at the nearest viewport ancestor. | 79 // Stop at the nearest viewport ancestor. |
82 done = current_element != this && IsViewportElement(*current_element); | 80 done = current_element != this && IsViewportElement(*current_element); |
83 break; | 81 break; |
84 case kAncestorScope: | 82 case kAncestorScope: |
85 // Stop at the designated ancestor. | 83 // Stop at the designated ancestor. |
86 done = current_element == ancestor; | 84 done = current_element == ancestor; |
87 break; | 85 break; |
88 default: | 86 default: |
89 NOTREACHED(); | 87 DCHECK_EQ(mode, kScreenScope); |
90 break; | 88 break; |
91 } | 89 } |
92 } | 90 } |
93 | 91 |
94 return ctm; | 92 return ctm; |
95 } | 93 } |
96 | 94 |
97 AffineTransform SVGGraphicsElement::GetCTM( | 95 AffineTransform SVGGraphicsElement::GetCTM( |
98 StyleUpdateStrategy style_update_strategy) { | 96 StyleUpdateStrategy style_update_strategy) { |
99 return ComputeCTM(kNearestViewportScope, style_update_strategy); | 97 return ComputeCTM(kNearestViewportScope, style_update_strategy); |
100 } | 98 } |
101 | 99 |
102 AffineTransform SVGGraphicsElement::GetScreenCTM( | 100 AffineTransform SVGGraphicsElement::GetScreenCTM( |
103 StyleUpdateStrategy style_update_strategy) { | 101 StyleUpdateStrategy style_update_strategy) { |
104 if (style_update_strategy == kAllowStyleUpdate) | 102 return ComputeCTM(kScreenScope, style_update_strategy); |
105 GetDocument().UpdateStyleAndLayoutIgnorePendingStylesheets(); | |
106 TransformationMatrix transform; | |
107 if (LayoutObject* layout_object = this->GetLayoutObject()) { | |
108 // Adjust for the zoom level factored into CSS coordinates (WK bug #96361). | |
109 transform.Scale(1.0 / layout_object->StyleRef().EffectiveZoom()); | |
110 | |
111 // Origin in the document. (This, together with the inverse-scale above, | |
112 // performs the same operation as | |
113 // Document::adjustFloatRectForScrollAndAbsoluteZoom, but in transformation | |
114 // matrix form.) | |
115 if (FrameView* view = GetDocument().View()) { | |
116 LayoutRect visible_content_rect(view->VisibleContentRect()); | |
117 transform.Translate(-visible_content_rect.X(), -visible_content_rect.Y()); | |
118 } | |
119 | |
120 // Apply transforms from our ancestor coordinate space, including any | |
121 // non-SVG ancestor transforms. | |
122 transform.Multiply(layout_object->LocalToAbsoluteTransform()); | |
123 | |
124 // At the SVG/HTML boundary (aka LayoutSVGRoot), we need to apply the | |
125 // localToBorderBoxTransform to map an element from SVG viewport | |
126 // coordinates to CSS box coordinates. | |
127 if (layout_object->IsSVGRoot()) { | |
128 transform.Multiply( | |
129 ToLayoutSVGRoot(layout_object)->LocalToBorderBoxTransform()); | |
130 } | |
131 } | |
132 // Drop any potential non-affine parts, because we're not able to convey that | |
133 // information further anyway until getScreenCTM returns a DOMMatrix (4x4 | |
134 // matrix.) | |
135 return transform.ToAffineTransform(); | |
136 } | 103 } |
137 | 104 |
138 SVGMatrixTearOff* SVGGraphicsElement::getCTMFromJavascript() { | 105 SVGMatrixTearOff* SVGGraphicsElement::getCTMFromJavascript() { |
139 return SVGMatrixTearOff::Create(GetCTM()); | 106 return SVGMatrixTearOff::Create(GetCTM()); |
140 } | 107 } |
141 | 108 |
142 SVGMatrixTearOff* SVGGraphicsElement::getScreenCTMFromJavascript() { | 109 SVGMatrixTearOff* SVGGraphicsElement::getScreenCTMFromJavascript() { |
143 return SVGMatrixTearOff::Create(GetScreenCTM()); | 110 return SVGMatrixTearOff::Create(GetScreenCTM()); |
144 } | 111 } |
145 | 112 |
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214 | 181 |
215 return GetLayoutObject()->ObjectBoundingBox(); | 182 return GetLayoutObject()->ObjectBoundingBox(); |
216 } | 183 } |
217 | 184 |
218 SVGRectTearOff* SVGGraphicsElement::getBBoxFromJavascript() { | 185 SVGRectTearOff* SVGGraphicsElement::getBBoxFromJavascript() { |
219 return SVGRectTearOff::Create(SVGRect::Create(GetBBox()), 0, | 186 return SVGRectTearOff::Create(SVGRect::Create(GetBBox()), 0, |
220 kPropertyIsNotAnimVal); | 187 kPropertyIsNotAnimVal); |
221 } | 188 } |
222 | 189 |
223 } // namespace blink | 190 } // namespace blink |
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