src/insets/InsetGraphicsParams.cpp

   1 /**
   2  * \file InsetGraphicsParams.cpp
   3  * This file is part of LyX, the document processor.
   4  * Licence details can be found in the file COPYING.
   5  *
   6  * \author Baruch Even
   7  * \author Herbert Voß
   8  *
   9  * Full author contact details are available in file CREDITS.
  10  */
  11
  12 #include <config.h>
  13
  14 #include "InsetGraphicsParams.h"
  15
  16 #include "LyX.h" // for use_gui
  17 #include "Lexer.h"
  18 #include "LyXRC.h"
  19 #include "Buffer.h"
  20
  21 #include "graphics/GraphicsParams.h"
  22 #include "graphics/GraphicsTypes.h"
  23
  24 #include "support/convert.h"
  25 #include "support/debug.h"
  26 #include "support/filetools.h"
  27 #include "support/lyxlib.h"
  28 #include "support/lstrings.h"
  29 #include "support/Translator.h"
  30
  31 #include <ostream>
  32
  33 using namespace std;
  34 using namespace lyx::support;
  35
  36 namespace lyx {
  37
  38
  39 InsetGraphicsParams::InsetGraphicsParams()
  40 {
  41         init();
  42 }
  43
  44
  45 InsetGraphicsParams::InsetGraphicsParams(InsetGraphicsParams const & igp)
  46 {
  47         // I decided to skip the initialization since the copy will overwrite
  48         // everything anyway.
  49         //    init();
  50         copy(igp);
  51 }
  52
  53
  54 void InsetGraphicsParams::operator=(InsetGraphicsParams const & params)
  55 {
  56         // Are we assigning the object into itself?
  57         if (this == &params)
  58                 return;
  59         copy(params);
  60 }
  61
  62
  63 void InsetGraphicsParams::init()
  64 {
  65         filename.erase();
  66         lyxscale = 100;                 // lyx scaling in percentage
  67         display = graphics::DefaultDisplay; // display mode; see preferences
  68         scale = string("100");                  // output scaling in percentage
  69         width = Length();
  70         height = Length();
  71         keepAspectRatio = false;        // for LaTeX output
  72         draft = false;                  // draft mode
  73         noUnzip = false;                // unzip files
  74         scaleBeforeRotation = false;    // scale image before rotating
  75
  76         bb = string();                  // bounding box
  77         clip = false;                   // clip image
  78
  79         rotateAngle = "0";              // angle of rotation in degrees
  80         rotateOrigin.erase();           // Origin of rotation
  81         special.erase();                // additional userdefined stuff
  82 }
  83
  84
  85 void InsetGraphicsParams::copy(InsetGraphicsParams const & igp)
  86 {
  87         filename = igp.filename;
  88         lyxscale = igp.lyxscale;
  89         display = igp.display;
  90         scale = igp.scale;
  91         width = igp.width;
  92         height = igp.height;
  93         keepAspectRatio = igp.keepAspectRatio;
  94         draft = igp.draft;
  95         noUnzip = igp.noUnzip;
  96         scaleBeforeRotation = igp.scaleBeforeRotation;
  97
  98         bb = igp.bb;
  99         clip = igp.clip;
 100
 101         rotateAngle = igp.rotateAngle;
 102         rotateOrigin = igp.rotateOrigin;
 103         special = igp.special;
 104 }
 105
 106
 107 bool operator==(InsetGraphicsParams const & left,
 108                 InsetGraphicsParams const & right)
 109 {
 110         return left.filename == right.filename &&
 111             left.lyxscale == right.lyxscale &&
 112             left.display == right.display &&
 113             left.scale == right.scale &&
 114             left.width == right.width &&
 115             left.height == right.height &&
 116             left.keepAspectRatio == right.keepAspectRatio &&
 117             left.draft == right.draft &&
 118             left.noUnzip == right.noUnzip &&
 119             left.scaleBeforeRotation == right.scaleBeforeRotation &&
 120
 121             left.bb == right.bb &&
 122             left.clip == right.clip &&
 123
 124             left.rotateAngle == right.rotateAngle &&
 125             left.rotateOrigin == right.rotateOrigin &&
 126             left.special == right.special;
 127 }
 128
 129
 130 bool operator!=(InsetGraphicsParams const & left,
 131                 InsetGraphicsParams const & right)
 132 {
 133         return  !(left == right);
 134 }
 135
 136
 137 void InsetGraphicsParams::Write(ostream & os, Buffer const & buffer) const
 138 {
 139         // Do not write the default values
 140         if (!filename.empty())
 141                 os << "\tfilename " << filename.outputFilename(buffer.filePath()) << '\n';
 142         if (lyxscale != 100)
 143                 os << "\tlyxscale " << lyxscale << '\n';
 144         if (display != graphics::DefaultDisplay)
 145                 os << "\tdisplay " << graphics::displayTranslator().find(display) << '\n';
 146         if (!scale.empty() && !float_equal(convert<double>(scale), 0.0, 0.05)) {
 147                 if (!float_equal(convert<double>(scale), 100.0, 0.05))
 148                         os << "\tscale " << scale << '\n';
 149         } else {
 150                 if (!width.zero())
 151                         os << "\twidth " << width.asString() << '\n';
 152                 if (!height.zero())
 153                         os << "\theight " << height.asString() << '\n';
 154         }
 155
 156         if (keepAspectRatio)
 157                 os << "\tkeepAspectRatio\n";
 158         if (draft)                      // draft mode
 159                 os << "\tdraft\n";
 160         if (noUnzip)
 161                 os << "\tnoUnzip\n";
 162         if (scaleBeforeRotation)
 163                 os << "\tscaleBeforeRotation\n";
 164
 165         if (!bb.empty())                // bounding box
 166                 os << "\tBoundingBox " << bb << '\n';
 167         if (clip)                       // clip image
 168                 os << "\tclip\n";
 169
 170         if (!rotateAngle.empty()
 171                 && !float_equal(convert<double>(rotateAngle), 0.0, 0.001))
 172                 os << "\trotateAngle " << rotateAngle << '\n';
 173         if (!rotateOrigin.empty())
 174                 os << "\trotateOrigin " << rotateOrigin << '\n';
 175         if (!special.empty())
 176                 os << "\tspecial " << special << '\n';
 177 }
 178
 179
 180 bool InsetGraphicsParams::Read(Lexer & lex, string const & token, string const & bufpath)
 181 {
 182         if (token == "filename") {
 183                 lex.eatLine();
 184                 filename.set(lex.getString(), bufpath);
 185         } else if (token == "embed") {
 186                 lex.next();
 187                 string const name = lex.getString();
 188                 filename.setInzipName(name);
 189                 filename.setEmbed(!name.empty());
 190         } else if (token == "lyxscale") {
 191                 lex.next();
 192                 lyxscale = lex.getInteger();
 193         } else if (token == "display") {
 194                 lex.next();
 195                 string const type = lex.getString();
 196                 display = graphics::displayTranslator().find(type);
 197         } else if (token == "scale") {
 198                 lex.next();
 199                 scale = lex.getString();
 200         } else if (token == "width") {
 201                 lex.next();
 202                 width = Length(lex.getString());
 203                 scale = string();
 204         } else if (token == "height") {
 205                 lex.next();
 206                 height = Length(lex.getString());
 207                 scale = string();
 208         } else if (token == "keepAspectRatio") {
 209                 keepAspectRatio = true;
 210         } else if (token == "draft") {
 211                 draft = true;
 212         } else if (token == "noUnzip") {
 213                 noUnzip = true;
 214         } else if (token == "scaleBeforeRotation") {
 215                 scaleBeforeRotation = true;
 216         } else if (token == "BoundingBox") {
 217                 bb.erase();
 218                 for (int i = 0; i < 4; ++i) {
 219                         if (i != 0)
 220                                 bb += ' ';
 221                         lex.next();
 222                         bb += lex.getString();
 223                 }
 224         } else if (token == "clip") {
 225                 clip = true;
 226         } else if (token == "rotateAngle") {
 227                 lex.next();
 228                 rotateAngle = lex.getString();
 229         } else if (token == "rotateOrigin") {
 230                 lex.next();
 231                 rotateOrigin=lex.getString();
 232         } else if (token == "special") {
 233                 lex.eatLine();
 234                 special = lex.getString();
 235
 236         // catch and ignore following two old-format tokens and their arguments.
 237         // e.g. "size_kind scale" clashes with the setting of the
 238         // "scale <value>" keyword.
 239         } else if (token == "size_kind" || token == "lyxsize_kind") {
 240                 lex.next();
 241                 lex.getString();
 242
 243         } else {
 244                 // If it's none of the above, it's not ours.
 245                 return false;
 246         }
 247         return true;
 248 }
 249
 250
 251 graphics::Params InsetGraphicsParams::as_grfxParams() const
 252 {
 253         graphics::Params pars;
 254         pars.filename = filename.availableFile();
 255         pars.icon = filename.embedded() ? "pin.png" : "";
 256         pars.scale = lyxscale;
 257         pars.angle = convert<double>(rotateAngle);
 258
 259         if (clip) {
 260                 pars.bb = bb;
 261
 262                 // Get the original Bounding Box from the file
 263                 string const tmp = readBB_from_PSFile(filename);
 264                 LYXERR(Debug::GRAPHICS, "BB_from_File: " << tmp);
 265                 if (!tmp.empty()) {
 266                         // FIXME: why not convert to unsigned int? (Lgb)
 267                         unsigned int const bb_orig_xl = convert<int>(token(tmp, ' ', 0));
 268                         unsigned int const bb_orig_yb = convert<int>(token(tmp, ' ', 1));
 269
 270                         // new pars.bb values must be >= zero
 271                         if (pars.bb.xl > bb_orig_xl)
 272                                 pars.bb.xl -= bb_orig_xl;
 273                         else
 274                                 pars.bb.xl = 0;
 275
 276                         if (pars.bb.xr > bb_orig_xl)
 277                                 pars.bb.xr -= bb_orig_xl;
 278                         else
 279                                 pars.bb.xr = 0;
 280
 281                         if (pars.bb.yb > bb_orig_yb)
 282                                 pars.bb.yb -= bb_orig_yb;
 283                         else
 284                                 pars.bb.yb = 0;
 285
 286                         if (pars.bb.yt > bb_orig_yb)
 287                                 pars.bb.yt -= bb_orig_yb;
 288                         else
 289                                 pars.bb.yt = 0;
 290                 }
 291
 292                 // Paranoia check.
 293                 int const width  = pars.bb.xr - pars.bb.xl;
 294                 int const height = pars.bb.yt - pars.bb.yb;
 295
 296                 if (width  < 0 || height < 0) {
 297                         pars.bb.xl = 0;
 298                         pars.bb.xr = 0;
 299                         pars.bb.yb = 0;
 300                         pars.bb.yt = 0;
 301                 }
 302         }
 303
 304         if (display == graphics::DefaultDisplay) {
 305                 pars.display = graphics::DisplayType(lyxrc.display_graphics);
 306         } else {
 307                 pars.display = display;
 308         }
 309
 310         // Override the above if we're not using a gui
 311         if (!use_gui)
 312                 pars.display = graphics::NoDisplay;
 313
 314         return pars;
 315 }
 316
 317
 318 } // namespace lyx