KHtml

render_image.h
1 /*
2  * This file is part of the DOM implementation for KDE.
3  *
4  * Copyright (C) 1999-2003 Lars Knoll ([email protected])
5  * (C) 1999 Antti Koivisto ([email protected])
6  *
7  * This library is free software; you can redistribute it and/or
8  * modify it under the terms of the GNU Library General Public
9  * License as published by the Free Software Foundation; either
10  * version 2 of the License, or (at your option) any later version.
11  *
12  * This library is distributed in the hope that it will be useful,
13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15  * Library General Public License for more details.
16  *
17  * You should have received a copy of the GNU Library General Public License
18  * along with this library; see the file COPYING.LIB. If not, write to
19  * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
20  * Boston, MA 02110-1301, USA.
21  *
22  */
23 #ifndef RENDER_IMAGE_H
24 #define RENDER_IMAGE_H
25 
26 #include "html/dtd.h"
27 #include "html/html_elementimpl.h"
28 #include "rendering/render_replaced.h"
29 #include "dom/dom_string.h"
30 
31 #include <QMap>
32 #include <QPixmap>
33 
34 namespace khtmlImLoad
35 {
36 class ImagePainter;
37 }
38 
39 namespace khtml
40 {
41 
42 class CachedObject;
43 
44 class RenderImage : public RenderReplaced
45 {
46 public:
47  RenderImage(DOM::NodeImpl *_element);
48  virtual ~RenderImage();
49 
50  const char *renderName() const override
51  {
52  return "RenderImage";
53  }
54  void paint(PaintInfo &i, int tx, int ty) override;
55 
56  void layout() override;
57 
58  void updatePixmap(const QRect &, CachedImage *) override;
59 
60  // don't even think about making these methods virtual!
61  //QPixmap pixmap() const;
62  DOM::HTMLElementImpl *element() const
63  {
64  return static_cast<DOM::HTMLElementImpl *>(RenderObject::element());
65  }
66 
67  bool complete() const;
68 
69  CachedObject *contentObject()
70  {
71  return m_cachedImage;
72  }
73  void setContentObject(CachedObject *);
74 
75  // hook to keep RendeObject::m_inline() up to date
76  void setStyle(RenderStyle *style) override;
77  void updateFromElement() override;
78 
79  bool nodeAtPoint(NodeInfo &info, int x, int y, int tx, int ty, HitTestAction hitTestAction, bool inside) override;
80 
81  bool isWidthSpecified() const;
82  bool isHeightSpecified() const;
83 
84  short calcAspectRatioWidth() const;
85  int calcAspectRatioHeight() const;
86 
87  short calcReplacedWidth() const override;
88  int calcReplacedHeight() const override;
89 
90  SelectionState selectionState() const override
91  {
92  return KDE_CAST_BF_ENUM(SelectionState, m_selectionState);
93  }
94  void setSelectionState(SelectionState s) override
95  {
96  m_selectionState = s;
97  }
98 #if 0
99  virtual void caretPos(int offset, int flags, int &_x, int &_y, int &width, int &height) const;
100 #endif
101 
102 private:
103  void updateImage(CachedImage *new_image);
104  /*
105  * Cache for images that need resizing
106  */
107  //QPixmap resizeCache;
108 
109  // text to display as long as the image isn't available
110  DOM::DOMString alt;
111 
112  CachedImage *m_cachedImage;
113  khtmlImLoad::ImagePainter *m_imagePainter;
114 
115  bool berrorPic : 1;
116  bool bUnfinishedImageFrame : 1;
117  KDE_BF_ENUM(SelectionState) m_selectionState : 3; // FIXME: don't forget to enlarge this as the enum grows
118 };
119 
120 } //namespace
121 
122 #endif
This file is part of the HTML rendering engine for KDE.
An image painter let&#39;s one paint an image at the given size.
Definition: imagepainter.h:40
This class implements the basic string we use in the DOM.
Definition: dom_string.h:44
This file is part of the KDE documentation.
Documentation copyright © 1996-2021 The KDE developers.
Generated on Tue Oct 26 2021 22:48:07 by doxygen 1.8.11 written by Dimitri van Heesch, © 1997-2006

KDE's Doxygen guidelines are available online.