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

   1 /*! ========================================================================
   2 ** Sinfg
   3 ** Image Import Layer Implementation
   4 ** $Id: import.cpp,v 1.2 2005/03/19 04:26:42 darco Exp $
   5 **
   6 ** Copyright (c) 2002 Robert B. Quattlebaum Jr.
   7 **
   8 ** This software and associated documentation
   9 ** are CONFIDENTIAL and PROPRIETARY property of
  10 ** the above-mentioned copyright holder.
  11 **
  12 ** You may not copy, print, publish, or in any
  13 ** other way distribute this software without
  14 ** a prior written agreement with
  15 ** the copyright holder.
  16 **
  17 ** === N O T E S ===========================================================
  18 **
  19 ** ========================================================================= */
  20
  21 /* === H E A D E R S ======================================================= */
  22
  23 #ifdef USING_PCH
  24 #       include "pch.h"
  25 #else
  26 #ifdef HAVE_CONFIG_H
  27 #       include <config.h>
  28 #endif
  29
  30 #include "import.h"
  31 #include <sinfg/string.h>
  32 #include <sinfg/time.h>
  33 #include <sinfg/context.h>
  34 #include <sinfg/paramdesc.h>
  35 #include <sinfg/renddesc.h>
  36 #include <sinfg/surface.h>
  37 #include <sinfg/value.h>
  38 #include <sinfg/valuenode.h>
  39 #include <sinfg/canvas.h>
  40
  41 #endif
  42
  43 using namespace sinfg;
  44 using namespace std;
  45 using namespace etl;
  46
  47 /* === M A C R O S ========================================================= */
  48
  49 /* === G L O B A L S ======================================================= */
  50
  51 SINFG_LAYER_INIT(Import);
  52 SINFG_LAYER_SET_NAME(Import,"import");
  53 SINFG_LAYER_SET_LOCAL_NAME(Import,_("Import"));
  54 SINFG_LAYER_SET_CATEGORY(Import,_("Other"));
  55 SINFG_LAYER_SET_VERSION(Import,"0.1");
  56 SINFG_LAYER_SET_CVS_ID(Import,"$Id: import.cpp,v 1.2 2005/03/19 04:26:42 darco Exp $");
  57
  58 /* === P R O C E D U R E S ================================================= */
  59
  60 /* === M E T H O D S ======================================================= */
  61
  62 Import::Import()
  63 {
  64         time_offset=0;
  65 }
  66
  67 Import::~Import()
  68 {
  69 }
  70
  71 void
  72 Import::on_canvas_set()
  73 {
  74         if(get_canvas())set_param("filename",filename);
  75 }
  76
  77 bool
  78 Import::set_param(const String & param, const ValueBase &value)
  79 {
  80         try{
  81         IMPORT(time_offset);
  82         if(param=="filename" && value.same_as(filename))
  83         {
  84                 if(!get_canvas())
  85                 {
  86                         filename=value.get(filename);
  87                         importer=0;
  88                         surface.clear();
  89                         return true;
  90                 }
  91
  92                 String newfilename=value.get(string());
  93                 String filename_with_path;
  94
  95                 // Get rid of any %20 crap
  96                 {
  97                         unsigned int n;
  98                         while((n=newfilename.find("%20"))!=String::npos)
  99                                 newfilename.replace(n,3," ");
 100                 }
 101
 102                 //if(get_canvas()->get_file_path()==dirname(newfilename))
 103                 //{
 104                 //      sinfg::info("Image seems to be in local directory. Adjusting path...");
 105                 //      newfilename=basename(newfilename);
 106                 //}
 107
 108 #ifndef WIN32
 109                 if(is_absolute_path(newfilename))
 110                 {
 111                         string curpath(cleanup_path(absolute_path(get_canvas()->get_file_path())));
 112                         while(basename(curpath)==".")curpath=dirname(curpath);
 113
 114                         newfilename=relative_path(curpath,newfilename);
 115                         sinfg::info("basename(curpath)=%s, Path adjusted to %s",basename(curpath).c_str(),newfilename.c_str());
 116                 }
 117 #endif
 118
 119                 if(filename.empty())
 120                         filename=newfilename;
 121
 122                 if(newfilename.empty())
 123                 {
 124                         filename=newfilename;
 125                         importer=0;
 126                         surface.clear();
 127                         return true;
 128                 }
 129
 130                 // If we are already loaded, don't reload
 131                 if(filename==newfilename && importer)
 132                 {
 133                         sinfg::warning(strprintf(_("Filename seems to already be set to \"%s\" (%s)"),filename.c_str(),newfilename.c_str()));
 134                         return true;
 135                 }
 136
 137                 assert(get_canvas());
 138
 139                 if(is_absolute_path(newfilename))
 140                         filename_with_path=newfilename;
 141                 else
 142                         filename_with_path=get_canvas()->get_file_path()+ETL_DIRECTORY_SEPERATOR+newfilename;
 143
 144                 handle<Importer> newimporter;
 145
 146                 newimporter=Importer::open(absolute_path(filename_with_path));
 147
 148                 if(!newimporter)
 149                 {
 150                         newimporter=Importer::open(get_canvas()->get_file_path()+ETL_DIRECTORY_SEPERATOR+basename(newfilename));
 151                         if(!newimporter)
 152                         {
 153                                 sinfg::error(strprintf("Unable to create an importer object with file \"%s\"",filename_with_path.c_str()));
 154                                 surface.clear();
 155                                 return false;
 156                         }
 157                 }
 158
 159                 surface.clear();
 160                 if(!newimporter->get_frame(surface,Time(0)))
 161                 {
 162                         sinfg::warning(strprintf("Unable to get frame from \"%s\"",filename_with_path.c_str()));
 163                 }
 164
 165                 importer=newimporter;
 166                 filename=newfilename;
 167                 abs_filename=absolute_path(filename_with_path);
 168
 169                 return true;
 170         }
 171         } catch(...) { set_amount(0); return false; }
 172
 173         return Layer_Bitmap::set_param(param,value);
 174 }
 175
 176 ValueBase
 177 Import::get_param(const String & param)const
 178 {
 179         EXPORT(time_offset);
 180
 181         if(get_canvas())
 182         {
 183                 if(param=="filename")
 184                 {
 185                         string curpath(cleanup_path(absolute_path(get_canvas()->get_file_path())));
 186                         return relative_path(curpath,abs_filename);
 187                 }
 188         }
 189         else
 190                 EXPORT(filename);
 191
 192         EXPORT_NAME();
 193         EXPORT_VERSION();
 194
 195         return Layer_Bitmap::get_param(param);
 196 }
 197
 198 Layer::Vocab
 199 Import::get_param_vocab()const
 200 {
 201         Layer::Vocab ret(Layer_Bitmap::get_param_vocab());
 202
 203         ret.push_back(ParamDesc("filename")
 204                 .set_local_name(_("Filename"))
 205                 .set_description(_("File to import"))
 206                 .set_hint("filename")
 207         );
 208         ret.push_back(ParamDesc("time_offset")
 209                 .set_local_name(_("Time Offset"))
 210         );
 211
 212         return ret;
 213 }
 214
 215 void
 216 Import::set_time(Context context, Time time)const
 217 {
 218         if(get_amount() && importer && importer->is_animated())importer->get_frame(surface,time+time_offset);
 219         //else surface.clear();
 220         context.set_time(time);
 221 }
 222
 223 void
 224 Import::set_time(Context context, Time time, const Point &pos)const
 225 {
 226         if(get_amount() && importer && importer->is_animated())importer->get_frame(surface,time+time_offset);
 227         //else surface.clear();
 228         context.set_time(time,pos);
 229 }