MWAWGraphicStyle.hxx
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2 
3 /* libmwaw
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16 * Major Contributor(s):
17 * Copyright (C) 2002 William Lachance (wrlach@gmail.com)
18 * Copyright (C) 2002,2004 Marc Maurer (uwog@uwog.net)
19 * Copyright (C) 2004-2006 Fridrich Strba (fridrich.strba@bluewin.ch)
20 * Copyright (C) 2006, 2007 Andrew Ziem
21 * Copyright (C) 2011, 2012 Alonso Laurent (alonso@loria.fr)
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26 * For minor contributions see the git repository.
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29 * the GNU Lesser General Public License Version 2 or later (the "LGPLv2+"),
30 * in which case the provisions of the LGPLv2+ are applicable
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33 #ifndef MWAW_GRAPHIC_STYLE
34 # define MWAW_GRAPHIC_STYLE
35 # include <ostream>
36 # include <string>
37 # include <vector>
38 
39 # include "libwpd/libwpd.h"
40 # include "libmwaw_internal.hxx"
41 
48 {
49 public:
56 
58  struct GradientStop {
60  GradientStop(float offset=0.0, MWAWColor const &col=MWAWColor::black(), float opacity=1.0) :
61  m_offset(offset), m_color(col), m_opacity(opacity) {
62  }
64  int cmp(GradientStop const &a) const {
65  if (m_offset < a.m_offset) return -1;
66  if (m_offset > a.m_offset) return 1;
67  if (m_color < a.m_color) return -1;
68  if (m_color > a.m_color) return 1;
69  if (m_opacity < a.m_opacity) return -1;
70  if (m_opacity > a.m_opacity) return 1;
71  return 0;
72  }
74  friend std::ostream &operator<<(std::ostream &o, GradientStop const &st) {
75  o << "offset=" << st.m_offset << ",";
76  o << "color=" << st.m_color << ",";
77  if (st.m_opacity<1.0)
78  o << "opacity=" << st.m_opacity*100.f << "%,";
79  return o;
80  }
82  float m_offset;
86  float m_opacity;
87  };
92  struct Pattern {
97  }
99  Pattern(Vec2i dim, WPXBinaryData const &picture, std::string const &mime, MWAWColor const &avColor) :
100  m_dim(dim), m_data(), m_picture(picture), m_pictureMime(mime), m_pictureAverageColor(avColor) {
103  }
105  virtual ~Pattern() {}
107  bool empty() const {
108  if (m_dim[0]==0 || m_dim[1]==0) return true;
109  if (m_picture.size()) return false;
110  if (m_dim[0]!=8 && m_dim[0]!=16 && m_dim[0]!=32) return true;
111  return m_data.size()!=size_t((m_dim[0]/8)*m_dim[1]);
112  }
114  bool getAverageColor(MWAWColor &col) const;
116  bool getUniqueColor(MWAWColor &col) const;
118  bool getBinary(WPXBinaryData &data, std::string &type) const;
119 
121  int cmp(Pattern const &a) const {
122  int diff = m_dim.cmp(a.m_dim);
123  if (diff) return diff;
124  if (m_data.size() < a.m_data.size()) return -1;
125  if (m_data.size() > a.m_data.size()) return 1;
126  for (size_t h=0; h < m_data.size(); ++h) {
127  if (m_data[h]<a.m_data[h]) return 1;
128  if (m_data[h]>a.m_data[h]) return -1;
129  }
130  for (int i=0; i<2; ++i) {
131  if (m_colors[i] < a.m_colors[i]) return 1;
132  if (m_colors[i] > a.m_colors[i]) return -1;
133  }
135  if (m_pictureAverageColor > a.m_pictureAverageColor) return -1;
136  if (m_pictureMime < a.m_pictureMime) return 1;
137  if (m_pictureMime > a.m_pictureMime) return -1;
138  if (m_picture.size() < a.m_picture.size()) return 1;
139  if (m_picture.size() > a.m_picture.size()) return -1;
140  const unsigned char *ptr=m_picture.getDataBuffer();
141  const unsigned char *aPtr=a.m_picture.getDataBuffer();
142  for (unsigned long h=0; h < m_picture.size(); ++h, ++ptr, ++aPtr) {
143  if (*ptr < *aPtr) return 1;
144  if (*ptr > *aPtr) return -1;
145  }
146  return 0;
147  }
149  friend std::ostream &operator<<(std::ostream &o, Pattern const &pat) {
150  o << "dim=" << pat.m_dim << ",";
151  if (pat.m_picture.size()) {
152  o << "type=" << pat.m_pictureMime << ",";
153  o << "col[average]=" << pat.m_pictureAverageColor << ",";
154  } else {
155  if (!pat.m_colors[0].isBlack()) o << "col0=" << pat.m_colors[0] << ",";
156  if (!pat.m_colors[1].isWhite()) o << "col1=" << pat.m_colors[1] << ",";
157  o << "[";
158  for (size_t h=0; h < pat.m_data.size(); ++h)
159  o << std::hex << (int) pat.m_data[h] << std::dec << ",";
160  o << "],";
161  }
162  return o;
163  }
166 
170  std::vector<unsigned char> m_data;
171  protected:
173  WPXBinaryData m_picture;
175  std::string m_pictureMime;
178  };
183  m_pattern(),
185  m_rotate(0), m_extra("") {
186  m_arrows[0]=m_arrows[1]=false;
187  m_flip[0]=m_flip[1]=false;
190  }
192  virtual ~MWAWGraphicStyle() { }
194  bool hasLine() const {
195  return m_lineWidth>0 && m_lineOpacity>0;
196  }
198  void setSurfaceColor(MWAWColor const &col, float opacity = 1) {
199  m_surfaceColor = col;
200  m_surfaceOpacity = opacity;
201  }
203  bool hasSurfaceColor() const {
204  return m_surfaceOpacity > 0;
205  }
207  void setPattern(Pattern const &pat) {
208  m_pattern=pat;
209  }
211  bool hasPattern() const {
212  return !m_pattern.empty();
213  }
215  bool hasGradient(bool complex=false) const {
216  return m_gradientType != G_None && m_gradientStopList.size() >= (complex ? 3 : 2);
217  }
219  bool hasSurface() const {
220  return hasSurfaceColor() || hasPattern() || hasGradient();
221  }
223  void setShadowColor(MWAWColor const &col, float opacity = 1) {
224  m_shadowColor = col;
225  m_shadowOpacity = opacity;
226  }
228  bool hasShadow() const {
229  return m_shadowOpacity > 0;
230  }
232  friend std::ostream &operator<<(std::ostream &o, MWAWGraphicStyle const &st);
234  void addTo(WPXPropertyList &pList, WPXPropertyListVector &gradient, bool only1d=false) const;
235 
237  int cmp(MWAWGraphicStyle const &a) const;
238 
240  float m_lineWidth;
242  std::vector<float> m_lineDashWidth;
257 
264 
267 
271  std::vector<GradientStop> m_gradientStopList;
280 
282  bool m_arrows[2];
283 
284  // some transformation: must probably be somewhere else
285 
287  float m_rotate;
289  bool m_flip[2];
290 
292  std::string m_extra;
293 };
294 #endif
295 // vim: set filetype=cpp tabstop=2 shiftwidth=2 cindent autoindent smartindent noexpandtab:

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