synfig-core/src/modules/lyr_std/import.cpp

   1 /* === S Y N F I G ========================================================= */
   2 /*!     \file import.cpp
   3 **      \brief Implementation of the "Import Image" layer
   4 **
   5 **      $Id$
   6 **
   7 **      \legal
   8 **      Copyright (c) 2002-2005 Robert B. Quattlebaum Jr., Adrian Bentley
   9 **      Copyright (c) 2007 Chris Moore
  10 **
  11 **      This package is free software; you can redistribute it and/or
  12 **      modify it under the terms of the GNU General Public License as
  13 **      published by the Free Software Foundation; either version 2 of
  14 **      the License, or (at your option) any later version.
  15 **
  16 **      This package is distributed in the hope that it will be useful,
  17 **      but WITHOUT ANY WARRANTY; without even the implied warranty of
  18 **      MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  19 **      General Public License for more details.
  20 **      \endlegal
  21 **
  22 ** === N O T E S ===========================================================
  23 **
  24 ** ========================================================================= */
  25
  26 /* === H E A D E R S ======================================================= */
  27
  28 #ifdef USING_PCH
  29 #       include "pch.h"
  30 #else
  31 #ifdef HAVE_CONFIG_H
  32 #       include <config.h>
  33 #endif
  34
  35 #include "import.h"
  36 #include <synfig/string.h>
  37 #include <synfig/time.h>
  38 #include <synfig/context.h>
  39 #include <synfig/paramdesc.h>
  40 #include <synfig/renddesc.h>
  41 #include <synfig/surface.h>
  42 #include <synfig/value.h>
  43 #include <synfig/valuenode.h>
  44 #include <synfig/canvas.h>
  45
  46 #endif
  47
  48 using namespace synfig;
  49 using namespace std;
  50 using namespace etl;
  51
  52 /* === M A C R O S ========================================================= */
  53
  54 /* === G L O B A L S ======================================================= */
  55
  56 SYNFIG_LAYER_INIT(Import);
  57 SYNFIG_LAYER_SET_NAME(Import,"import");
  58 SYNFIG_LAYER_SET_LOCAL_NAME(Import,N_("Import Image"));
  59 SYNFIG_LAYER_SET_CATEGORY(Import,N_("Other"));
  60 SYNFIG_LAYER_SET_VERSION(Import,"0.1");
  61 SYNFIG_LAYER_SET_CVS_ID(Import,"$Id$");
  62
  63 /* === P R O C E D U R E S ================================================= */
  64
  65 /* === M E T H O D S ======================================================= */
  66
  67 Import::Import()
  68 {
  69         time_offset=0;
  70         Layer::Vocab voc(get_param_vocab());
  71         Layer::fill_static(voc);
  72 }
  73
  74 Import::~Import()
  75 {
  76 }
  77
  78 void
  79 Import::on_canvas_set()
  80 {
  81         if(get_canvas())set_param("filename",filename);
  82 }
  83
  84 bool
  85 Import::set_param(const String & param, const ValueBase &value)
  86 {
  87         try{
  88         IMPORT(time_offset);
  89         if(param=="filename" && value.same_type_as(filename))
  90         {
  91                 set_param_static(param, value.get_static());
  92                 if(!get_canvas())
  93                 {
  94                         filename=value.get(filename);
  95                         importer=0;
  96                         surface.clear();
  97                         return true;
  98                 }
  99
 100                 String newfilename=value.get(string());
 101                 String filename_with_path;
 102
 103                 // Get rid of any %20 crap
 104                 {
 105                         String::size_type n;
 106                         while((n=newfilename.find("%20"))!=String::npos)
 107                                 newfilename.replace(n,3," ");
 108                 }
 109
 110                 //if(get_canvas()->get_file_path()==dirname(newfilename))
 111                 //{
 112                 //      synfig::info("Image seems to be in local directory. Adjusting path...");
 113                 //      newfilename=basename(newfilename);
 114                 //}
 115
 116 #ifndef WIN32
 117                 if(is_absolute_path(newfilename))
 118                 {
 119                         string curpath(cleanup_path(absolute_path(get_canvas()->get_file_path())));
 120                         while(basename(curpath)==".")curpath=dirname(curpath);
 121
 122                         newfilename=relative_path(curpath,newfilename);
 123                         synfig::info("basename(curpath)=%s, Path adjusted to %s",basename(curpath).c_str(),newfilename.c_str());
 124                 }
 125 #endif
 126
 127                 if(filename.empty())
 128                         filename=newfilename;
 129
 130                 if(newfilename.empty())
 131                 {
 132                         filename=newfilename;
 133                         importer=0;
 134                         surface.clear();
 135                         return true;
 136                 }
 137
 138                 // If we are already loaded, don't reload
 139                 if(filename==newfilename && importer)
 140                 {
 141                         synfig::warning(strprintf(_("Filename seems to already be set to \"%s\" (%s)"),filename.c_str(),newfilename.c_str()));
 142                         return true;
 143                 }
 144
 145                 assert(get_canvas());
 146
 147                 if(is_absolute_path(newfilename))
 148                         filename_with_path=newfilename;
 149                 else
 150                         filename_with_path=get_canvas()->get_file_path()+ETL_DIRECTORY_SEPARATOR+newfilename;
 151
 152                 handle<Importer> newimporter;
 153
 154                 newimporter=Importer::open(absolute_path(filename_with_path));
 155
 156                 if(!newimporter)
 157                 {
 158                         newimporter=Importer::open(get_canvas()->get_file_path()+ETL_DIRECTORY_SEPARATOR+basename(newfilename));
 159                         if(!newimporter)
 160                         {
 161                                 synfig::error(strprintf("Unable to create an importer object with file \"%s\"",filename_with_path.c_str()));
 162                                 surface.clear();
 163                                 return false;
 164                         }
 165                 }
 166
 167                 surface.clear();
 168                 if(!newimporter->get_frame(surface,get_canvas()->rend_desc(),Time(0),trimmed,width,height,top,left))
 169                 {
 170                         synfig::warning(strprintf("Unable to get frame from \"%s\"",filename_with_path.c_str()));
 171                 }
 172
 173                 importer=newimporter;
 174                 filename=newfilename;
 175                 abs_filename=absolute_path(filename_with_path);
 176
 177                 return true;
 178         }
 179         } catch(...) { set_amount(0); return false; }
 180
 181         return Layer_Bitmap::set_param(param,value);
 182 }
 183
 184 ValueBase
 185 Import::get_param(const String & param)const
 186 {
 187         EXPORT(time_offset);
 188
 189         if(get_canvas())
 190         {
 191                 if(param=="filename")
 192                 {
 193                         ValueBase ret(ValueBase::TYPE_STRING);
 194                         ret.set_static(get_param_static(param));
 195                         string curpath(cleanup_path(absolute_path(get_canvas()->get_file_path())));
 196                         ret=relative_path(curpath,abs_filename);
 197                         return ret;
 198                 }
 199         }
 200         else
 201                 EXPORT(filename);
 202
 203         EXPORT_NAME();
 204         EXPORT_VERSION();
 205
 206         return Layer_Bitmap::get_param(param);
 207 }
 208
 209 Layer::Vocab
 210 Import::get_param_vocab()const
 211 {
 212         Layer::Vocab ret(Layer_Bitmap::get_param_vocab());
 213
 214         ret.push_back(ParamDesc("filename")
 215                 .set_local_name(_("Filename"))
 216                 .set_description(_("File to import"))
 217                 .set_hint("filename")
 218         );
 219         ret.push_back(ParamDesc("time_offset")
 220                 .set_local_name(_("Time Offset"))
 221         );
 222
 223         return ret;
 224 }
 225
 226 void
 227 Import::set_time(Context context, Time time)const
 228 {
 229         if(get_amount() && importer &&
 230            importer->is_animated())
 231                 importer->get_frame(surface,get_canvas()->rend_desc(),time+time_offset,trimmed,width,height,top,left);
 232
 233         context.set_time(time);
 234 }
 235
 236 void
 237 Import::set_time(Context context, Time time, const Point &pos)const
 238 {
 239         if(get_amount() && importer &&
 240            importer->is_animated())
 241                 importer->get_frame(surface,get_canvas()->rend_desc(),time+time_offset,trimmed,width,height,top,left);
 242
 243         context.set_time(time,pos);
 244 }