Remove .gitignore do nothing is ignored.
[synfig.git] / synfig-core / trunk / src / tool / main.cpp
index 77281c8..fbf64b0 100644 (file)
@@ -50,6 +50,7 @@
 #include <synfig/paramdesc.h>
 #include <synfig/main.h>
 #include <synfig/guid.h>
+#include <autorevision.h>
 #endif
 
 using namespace std;
@@ -259,6 +260,18 @@ struct Job
        int quality;
        bool sifout;
        bool list_canvases;
+
+       bool canvas_info, canvas_info_all, canvas_info_time_start, canvas_info_time_end, canvas_info_frame_rate,
+                canvas_info_frame_start, canvas_info_frame_end, canvas_info_w, canvas_info_h, canvas_info_image_aspect,
+                canvas_info_pw, canvas_info_ph, canvas_info_pixel_aspect, canvas_info_tl, canvas_info_br,
+                canvas_info_physical_w, canvas_info_physical_h, canvas_info_x_res, canvas_info_y_res, canvas_info_span,
+                canvas_info_interlaced, canvas_info_antialias, canvas_info_clamp, canvas_info_flags, canvas_info_focus,
+                canvas_info_bg_color, canvas_info_metadata;
+
+       Job()
+       {
+               canvas_info = canvas_info_all = canvas_info_time_start = canvas_info_time_end = canvas_info_frame_rate = canvas_info_frame_start = canvas_info_frame_end = canvas_info_w = canvas_info_h = canvas_info_image_aspect = canvas_info_pw = canvas_info_ph = canvas_info_pixel_aspect = canvas_info_tl = canvas_info_br = canvas_info_physical_w = canvas_info_physical_h = canvas_info_x_res = canvas_info_y_res = canvas_info_span = canvas_info_interlaced = canvas_info_antialias = canvas_info_clamp = canvas_info_flags = canvas_info_focus = canvas_info_bg_color = canvas_info_metadata = false;
+       };
 };
 
 typedef list<String> arg_list_t;
@@ -292,69 +305,66 @@ void signal_test()
 
 /* === P R O C E D U R E S ================================================= */
 
-void display_help(int amount)
+void display_help_option(const char *flag, const char *arg, string description)
 {
-       class Argument
-       {
-       public:
-               Argument(const char *flag,const char *arg, string description)
-               {
-                       const char spaces[]="                      ";
-                       if(arg)
-                               cerr<<strprintf(" %s %s %s",flag, arg, spaces+strlen(arg)+strlen(flag)+1)+description<<endl;
-                       else
-                               cerr<<strprintf(" %s %s",flag,spaces+strlen(flag))+description<<endl;
-               }
-       };
+       const char spaces[]="                      ";
+       if(arg)
+               cerr << strprintf(" %s %s %s", flag, arg, spaces+strlen(arg)+strlen(flag)+1)+description << endl;
+       else
+               cerr << strprintf(" %s %s", flag, spaces+strlen(flag))+description << endl;
+}
 
+void display_help(bool full)
+{
        cerr << endl << _("syntax: ") << progname << " [DEFAULT OPTIONS] ([SIF FILE] [SPECIFIC OPTIONS])..." << endl << endl;
 
-       if(amount == 0)
-               Argument("--help",NULL,_("Print out usage and syntax info"));
-       else
+       if(full)
        {
-               Argument("-t","<output type>",_("Specify output target (Default:unknown)"));
-               Argument("-w","<pixel width>",_("Set the image width (Use zero for file default)"));
-               Argument("-h","<pixel height>",_("Set the image height (Use zero for file default)"));
-               Argument("-s","<image dist>",_("Set the diagonal size of image window (Span)"));
-               Argument("-a","<1...30>",_("Set antialias amount for parametric renderer."));
-               Argument("-Q","<0...10>",strprintf(_("Specify image quality for accelerated renderer (default=%d)"),DEFAULT_QUALITY).c_str());
-               Argument("-g","<amount>",_("Gamma (default=2.2)"));
-               Argument("-v",NULL,_("Verbose Output (add more for more verbosity)"));
-               Argument("-q",NULL,_("Quiet mode (No progress/time-remaining display)"));
-               Argument("-c","<canvas id>",_("Render the canvas with the given id instead of the root."));
-               Argument("-o","<output file>",_("Specify output filename"));
-               Argument("-T","<# of threads>",_("Enable multithreaded renderer using specified # of threads"));
-               Argument("-b",NULL,_("Print Benchmarks"));
-               Argument("--fps","<framerate>",_("Set the frame rate"));
-               Argument("--time","<time>",_("Render a single frame at <seconds>"));
-               Argument("--begin-time","<time>",_("Set the starting time"));
-               Argument("--start-time","<time>",_("Set the starting time"));
-               Argument("--end-time","<time>",_("Set the ending time"));
-               Argument("--dpi","<res>",_("Set the physical resolution (dots-per-inch)"));
-               Argument("--dpi-x","<res>",_("Set the physical X resolution (dots-per-inch)"));
-               Argument("--dpi-y","<res>",_("Set the physical Y resolution (dots-per-inch)"));
-
-               Argument("--list-canvases",NULL,_("List the exported canvases in the composition"));
-               Argument("--append","<filename>",_("Append layers in <filename> to composition"));
-
-               Argument("--layer-info","<layer>",_("Print out layer's description, parameter info, etc."));
-               Argument("--layers",NULL,_("Print out the list of available layers"));
-               Argument("--targets",NULL,_("Print out the list of available targets"));
-               Argument("--importers",NULL,_("Print out the list of available importers"));
-               Argument("--valuenodes",NULL,_("Print out the list of available ValueNodes"));
-               Argument("--modules",NULL,_("Print out the list of loaded modules"));
-               Argument("--version",NULL,_("Print out version information"));
-               Argument("--info",NULL,_("Print out misc build information"));
-               Argument("--license",NULL,_("Print out license information"));
+               display_help_option("-t", "<output type>", _("Specify output target (Default:unknown)"));
+               display_help_option("-w", "<pixel width>", _("Set the image width (Use zero for file default)"));
+               display_help_option("-h", "<pixel height>", _("Set the image height (Use zero for file default)"));
+               display_help_option("-s", "<image dist>", _("Set the diagonal size of image window (Span)"));
+               display_help_option("-a", "<1...30>", _("Set antialias amount for parametric renderer."));
+               display_help_option("-Q", "<0...10>", strprintf(_("Specify image quality for accelerated renderer (default=%d)"), DEFAULT_QUALITY).c_str());
+               display_help_option("-g", "<amount>", _("Gamma (default=2.2)"));
+               display_help_option("-v", NULL, _("Verbose Output (add more for more verbosity)"));
+               display_help_option("-q", NULL, _("Quiet mode (No progress/time-remaining display)"));
+               display_help_option("-c", "<canvas id>", _("Render the canvas with the given id instead of the root."));
+               display_help_option("-o", "<output file>", _("Specify output filename"));
+               display_help_option("-T", "<# of threads>", _("Enable multithreaded renderer using specified # of threads"));
+               display_help_option("-b", NULL, _("Print Benchmarks"));
+               display_help_option("--fps", "<framerate>", _("Set the frame rate"));
+               display_help_option("--time", "<time>", _("Render a single frame at <seconds>"));
+               display_help_option("--begin-time", "<time>", _("Set the starting time"));
+               display_help_option("--start-time", "<time>", _("Set the starting time"));
+               display_help_option("--end-time", "<time>", _("Set the ending time"));
+               display_help_option("--dpi", "<res>", _("Set the physical resolution (dots-per-inch)"));
+               display_help_option("--dpi-x", "<res>", _("Set the physical X resolution (dots-per-inch)"));
+               display_help_option("--dpi-y", "<res>", _("Set the physical Y resolution (dots-per-inch)"));
+
+               display_help_option("--list-canvases", NULL, _("List the exported canvases in the composition"));
+               display_help_option("--canvas-info", "<fields>", _("Print out specified details of the root canvas"));
+               display_help_option("--append", "<filename>", _("Append layers in <filename> to composition"));
+
+               display_help_option("--layer-info", "<layer>", _("Print out layer's description, parameter info, etc."));
+               display_help_option("--layers", NULL, _("Print out the list of available layers"));
+               display_help_option("--targets", NULL, _("Print out the list of available targets"));
+               display_help_option("--importers", NULL, _("Print out the list of available importers"));
+               display_help_option("--valuenodes", NULL, _("Print out the list of available ValueNodes"));
+               display_help_option("--modules", NULL, _("Print out the list of loaded modules"));
+               display_help_option("--version", NULL, _("Print out version information"));
+               display_help_option("--info", NULL, _("Print out misc build information"));
+               display_help_option("--license", NULL, _("Print out license information"));
 
 #ifdef _DEBUG
-               Argument("--guid-test",NULL,_("Test GUID generation"));
-               Argument("--signal-test",NULL,_("Test signal implementation"));
+               display_help_option("--guid-test", NULL, _("Test GUID generation"));
+               display_help_option("--signal-test", NULL, _("Test signal implementation"));
 #endif
        }
+       else
+               display_help_option("--help", NULL, _("Print out usage and syntax info"));
 
-       cerr<<endl;
+       cerr << endl;
 }
 
 int process_global_flags(arg_list_t &arg_list)
@@ -380,13 +390,16 @@ int process_global_flags(arg_list_t &arg_list)
 
                if(*iter == "--help")
                {
-                       display_help(1);
+                       display_help(true);
                        return SYNFIGTOOL_HELP;
                }
 
                if(*iter == "--info")
                {
                        cout<<PACKAGE"-"VERSION<<endl;
+                       #ifdef DEVEL_VERSION
+                               cout<<endl<<DEVEL_VERSION<<endl<<endl;
+                       #endif
                        cout<<"Compiled on "__DATE__ /* " at "__TIME__ */;
 #ifdef __GNUC__
                        cout<<" with GCC "<<__VERSION__;
@@ -397,7 +410,6 @@ int process_global_flags(arg_list_t &arg_list)
 #ifdef __TCPLUSPLUS__
                        cout<<" with Borland Turbo C++ "<<(__TCPLUSPLUS__>>8)<<'.'<<((__TCPLUSPLUS__&255)>>4)<<'.'<<(__TCPLUSPLUS__&15);
 #endif
-
                        cout<<endl<<SYNFIG_COPYRIGHT<<endl;
                        cout<<endl;
                        return SYNFIGTOOL_HELP;
@@ -534,10 +546,11 @@ int process_global_flags(arg_list_t &arg_list)
 /* true if the given flag takes an extra parameter */
 bool flag_requires_value(String flag)
 {
-       return (flag=="-a"                      || flag=="-c"                   || flag=="-g"                   || flag=="-h"                   || flag=="-o"           ||
-                       flag=="-Q"                      || flag=="-s"                   || flag=="-t"                   || flag=="-T"                   || flag=="-w"           ||
-                       flag=="--append"        || flag=="--begin-time" || flag=="--dpi"                || flag=="--dpi-x"              || flag=="--dpi-y"      ||
-                       flag=="--end-time"      || flag=="--fps"                || flag=="--layer-info" || flag=="--start-time" || flag=="--time"       );
+       return (flag=="-a"                      || flag=="-c"                   || flag=="-g"                   || flag=="-h"                   || flag=="-o"                   ||
+                       flag=="-Q"                      || flag=="-s"                   || flag=="-t"                   || flag=="-T"                   || flag=="-w"                   ||
+                       flag=="--append"        || flag=="--begin-time" || flag=="--canvas-info"|| flag=="--dpi"                || flag=="--dpi-x"              ||
+                       flag=="--dpi-y"         || flag=="--end-time"   || flag=="--fps"                || flag=="--layer-info" || flag=="--start-time" ||
+                       flag=="--time"          );
 }
 
 int extract_arg_cluster(arg_list_t &arg_list,arg_list_t &cluster)
@@ -682,24 +695,16 @@ int extract_RendDesc(arg_list_t &arg_list,RendDesc &desc)
                else if (flag_requires_value(*iter))
                        iter=next++;
        }
-       if(w&&h)
+       if (w||h)
        {
+               if (!w)
+                       w = desc.get_w() * h / desc.get_h();
+               else if (!h)
+                       h = desc.get_h() * w / desc.get_w();
+
                desc.set_wh(w,h);
                VERBOSE_OUT(1)<<strprintf(_("Resolution set to %dx%d"),w,h)<<endl;
        }
-       else
-       {
-               if(w)
-               {
-                       VERBOSE_OUT(1)<<strprintf(_("Width set to %d pixels"),w)<<endl;
-                       desc.set_w(w);
-               }
-               if(h)
-               {
-                       VERBOSE_OUT(1)<<strprintf(_("Height set to %d pixels"),h)<<endl;
-                       desc.set_h(h);
-               }
-       }
        if(span)
                desc.set_span(span);
        return SYNFIGTOOL_OK;
@@ -845,6 +850,80 @@ int extract_list_canvases(arg_list_t &arg_list,bool &list_canvases)
        return SYNFIGTOOL_OK;
 }
 
+void extract_canvas_info(arg_list_t &arg_list, Job &job)
+{
+       arg_list_t::iterator iter, next;
+
+       for(next=arg_list.begin(),iter=next++;iter!=arg_list.end();iter=next++)
+               if(*iter=="--canvas-info")
+               {
+                       job.canvas_info = true;
+                       arg_list.erase(iter);
+                       iter=next++;
+                       String values(*iter), value;
+                       arg_list.erase(iter);
+
+                       std::string::size_type pos;
+                       while (!values.empty())
+                       {
+                               pos = values.find_first_of(',');
+                               if (pos == std::string::npos)
+                               {
+                                       value = values;
+                                       values = "";
+                               }
+                               else
+                               {
+                                       value = values.substr(0, pos);
+                                       values = values.substr(pos+1);
+                               }
+                               if (value == "all")
+                               {
+                                       job.canvas_info_all = true;
+                                       return;
+                               }
+
+                               if (value == "time_start")                      job.canvas_info_time_start              = true;
+                               else if (value == "time_end")           job.canvas_info_time_end                = true;
+                               else if (value == "frame_rate")         job.canvas_info_frame_rate              = true;
+                               else if (value == "frame_start")        job.canvas_info_frame_start             = true;
+                               else if (value == "frame_end")          job.canvas_info_frame_end               = true;
+                               else if (value == "w")                          job.canvas_info_w                               = true;
+                               else if (value == "h")                          job.canvas_info_h                               = true;
+                               else if (value == "image_aspect")       job.canvas_info_image_aspect    = true;
+                               else if (value == "pw")                         job.canvas_info_pw                              = true;
+                               else if (value == "ph")                         job.canvas_info_ph                              = true;
+                               else if (value == "pixel_aspect")       job.canvas_info_pixel_aspect    = true;
+                               else if (value == "tl")                         job.canvas_info_tl                              = true;
+                               else if (value == "br")                         job.canvas_info_br                              = true;
+                               else if (value == "physical_w")         job.canvas_info_physical_w              = true;
+                               else if (value == "physical_h")         job.canvas_info_physical_h              = true;
+                               else if (value == "x_res")                      job.canvas_info_x_res                   = true;
+                               else if (value == "y_res")                      job.canvas_info_y_res                   = true;
+                               else if (value == "span")                       job.canvas_info_span                    = true;
+                               else if (value == "interlaced")         job.canvas_info_interlaced              = true;
+                               else if (value == "antialias")          job.canvas_info_antialias               = true;
+                               else if (value == "clamp")                      job.canvas_info_clamp                   = true;
+                               else if (value == "flags")                      job.canvas_info_flags                   = true;
+                               else if (value == "focus")                      job.canvas_info_focus                   = true;
+                               else if (value == "bg_color")           job.canvas_info_bg_color                = true;
+                               else if (value == "metadata")           job.canvas_info_metadata                = true;
+                               else
+                               {
+                                       cerr<<_("Unrecognised canvas variable: ") << "'" << value << "'" << endl;
+                                       cerr<<_("Recognized variables are:") << endl <<
+                                               "  all, time_start, time_end, frame_rate, frame_start, frame_end, w, h," << endl <<
+                                               "  image_aspect, pw, ph, pixel_aspect, tl, br, physical_w, physical_h," << endl <<
+                                               "  x_res, y_res, span, interlaced, antialias, clamp, flags," << endl <<
+                                               "  focus, bg_color, metadata" << endl;
+                               }
+
+                               if (pos == std::string::npos)
+                                       break;
+                       };
+               }
+}
+
 void list_child_canvases(string prefix, Canvas::Handle canvas)
 {
        Canvas::Children children(canvas->children());
@@ -855,6 +934,182 @@ void list_child_canvases(string prefix, Canvas::Handle canvas)
        }
 }
 
+void list_canvas_info(Job job)
+{
+       Canvas::Handle canvas(job.canvas);
+       const RendDesc &rend_desc(canvas->rend_desc());
+
+       if (job.canvas_info_all || job.canvas_info_time_start)
+       {
+               cout << endl << "# " << _("Start Time") << endl;
+               cout << "time_start"    << "=" << rend_desc.get_time_start().get_string().c_str() << endl;
+       }
+
+       if (job.canvas_info_all || job.canvas_info_time_end)
+       {
+               cout << endl << "# " << _("End Time") << endl;
+               cout << "time_end"              << "=" << rend_desc.get_time_end().get_string().c_str() << endl;
+       }
+
+       if (job.canvas_info_all || job.canvas_info_frame_rate)
+       {
+               cout << endl << "# " << _("Frame Rate") << endl;
+               cout << "frame_rate"    << "=" << rend_desc.get_frame_rate() << endl;
+       }
+
+       if (job.canvas_info_all || job.canvas_info_frame_start)
+       {
+               cout << endl << "# " << _("Start Frame") << endl;
+               cout << "frame_start"   << "=" << rend_desc.get_frame_start() << endl;
+       }
+
+       if (job.canvas_info_all || job.canvas_info_frame_end)
+       {
+               cout << endl << "# " << _("End Frame") << endl;
+               cout << "frame_end"             << "=" << rend_desc.get_frame_end() << endl;
+       }
+
+       if (job.canvas_info_all)
+               cout << endl;
+
+       if (job.canvas_info_all || job.canvas_info_w)
+       {
+               cout << endl << "# " << _("Width") << endl;
+               cout << "w"                             << "=" << rend_desc.get_w() << endl;
+       }
+
+       if (job.canvas_info_all || job.canvas_info_h)
+       {
+               cout << endl << "# " << _("Height") << endl;
+               cout << "h"                             << "=" << rend_desc.get_h() << endl;
+       }
+
+       if (job.canvas_info_all || job.canvas_info_image_aspect)
+       {
+               cout << endl << "# " << _("Image Aspect Ratio") << endl;
+               cout << "image_aspect"  << "=" << rend_desc.get_image_aspect() << endl;
+       }
+
+       if (job.canvas_info_all)
+               cout << endl;
+
+       if (job.canvas_info_all || job.canvas_info_pw)
+       {
+               cout << endl << "# " << _("Pixel Width") << endl;
+               cout << "pw"                    << "=" << rend_desc.get_pw() << endl;
+       }
+
+       if (job.canvas_info_all || job.canvas_info_ph)
+       {
+               cout << endl << "# " << _("Pixel Height") << endl;
+               cout << "ph"                    << "=" << rend_desc.get_ph() << endl;
+       }
+
+       if (job.canvas_info_all || job.canvas_info_pixel_aspect)
+       {
+               cout << endl << "# " << _("Pixel Aspect Ratio") << endl;
+               cout << "pixel_aspect"  << "=" << rend_desc.get_pixel_aspect() << endl;
+       }
+
+       if (job.canvas_info_all)
+               cout << endl;
+
+       if (job.canvas_info_all || job.canvas_info_tl)
+       {
+               cout << endl << "# " << _("Top Left") << endl;
+               cout << "tl"                    << "=" << rend_desc.get_tl()[0]
+                        << " " << rend_desc.get_tl()[1] << endl;
+       }
+
+       if (job.canvas_info_all || job.canvas_info_br)
+       {
+               cout << endl << "# " << _("Bottom Right") << endl;
+               cout << "br"                    << "=" << rend_desc.get_br()[0]
+                        << " " << rend_desc.get_br()[1] << endl;
+       }
+
+       if (job.canvas_info_all || job.canvas_info_physical_w)
+       {
+               cout << endl << "# " << _("Physical Width") << endl;
+               cout << "physical_w"    << "=" << rend_desc.get_physical_w() << endl;
+       }
+
+       if (job.canvas_info_all || job.canvas_info_physical_h)
+       {
+               cout << endl << "# " << _("Physical Height") << endl;
+               cout << "physical_h"    << "=" << rend_desc.get_physical_h() << endl;
+       }
+
+       if (job.canvas_info_all || job.canvas_info_x_res)
+       {
+               cout << endl << "# " << _("X Resolution") << endl;
+               cout << "x_res"                 << "=" << rend_desc.get_x_res() << endl;
+       }
+
+       if (job.canvas_info_all || job.canvas_info_y_res)
+       {
+               cout << endl << "# " << _("Y Resolution") << endl;
+               cout << "y_res"                 << "=" << rend_desc.get_y_res() << endl;
+       }
+
+       if (job.canvas_info_all || job.canvas_info_span)
+       {
+               cout << endl << "# " << _("Diagonal Image Span") << endl;
+               cout << "span"                  << "=" << rend_desc.get_span() << endl;
+       }
+
+       if (job.canvas_info_all)
+               cout << endl;
+
+       if (job.canvas_info_all || job.canvas_info_interlaced)
+       {
+               cout << endl << "# " << _("Interlaced") << endl;
+               cout << "interlaced"    << "=" << rend_desc.get_interlaced() << endl;
+       }
+
+       if (job.canvas_info_all || job.canvas_info_antialias)
+       {
+               cout << endl << "# " << _("Antialias") << endl;
+               cout << "antialias"             << "=" << rend_desc.get_antialias() << endl;
+       }
+
+       if (job.canvas_info_all || job.canvas_info_clamp)
+       {
+               cout << endl << "# " << _("Clamp") << endl;
+               cout << "clamp"                 << "=" << rend_desc.get_clamp() << endl;
+       }
+
+       if (job.canvas_info_all || job.canvas_info_flags)
+       {
+               cout << endl << "# " << _("Flags") << endl;
+               cout << "flags"                 << "=" << rend_desc.get_flags() << endl;
+       }
+
+       if (job.canvas_info_all || job.canvas_info_focus)
+       {
+               cout << endl << "# " << _("Focus") << endl;
+               cout << "focus"                 << "=" << rend_desc.get_focus()[0]
+                        << " " << rend_desc.get_focus()[1] << endl;
+       }
+
+       if (job.canvas_info_all || job.canvas_info_bg_color)
+       {
+               cout << endl << "# " << _("Background Color") << endl;
+               cout << "bg_color"              << "=" << rend_desc.get_bg_color().get_string().c_str() << endl;
+       }
+
+       if (job.canvas_info_all)
+               cout << endl;
+
+       if (job.canvas_info_all || job.canvas_info_metadata)
+       {
+               std::list<String> keys(canvas->get_meta_data_keys());
+               cout << endl << "# " << _("Metadata") << endl;
+               for (std::list<String>::iterator iter = keys.begin(); iter != keys.end(); iter++)
+                       cout << *iter << "=" << canvas->get_meta_data(*iter) << endl;
+       }
+}
+
 /* === M E T H O D S ======================================================= */
 
 /* === E N T R Y P O I N T ================================================= */
@@ -869,6 +1124,7 @@ int main(int argc, char *argv[])
 
 #ifdef ENABLE_NLS
        bindtextdomain("synfig", LOCALEDIR);
+       bind_textdomain_codeset("synfig", "UTF-8");
        textdomain("synfig");
 #endif
 
@@ -883,7 +1139,7 @@ int main(int argc, char *argv[])
 
        if(argc==1)
        {
-               display_help(0);
+               display_help(false);
                return SYNFIGTOOL_BLANK;
        }
 
@@ -918,11 +1174,19 @@ int main(int argc, char *argv[])
                          return ret;
 
                        // Open the composition
-                       job_list.front().root=open_canvas(job_list.front().filename);
+                       String errors, warnings;
+                       try
+                       {
+                               job_list.front().root=open_canvas(job_list.front().filename, errors, warnings);
+                       }
+                       catch(runtime_error x)
+                       {
+                               job_list.front().root = 0;
+                       }
 
                        if(!job_list.front().root)
                        {
-                               cerr<<_("Unable to open ")<<job_list.front().filename<<"."<<endl;
+                               cerr<<_("Unable to load '")<<job_list.front().filename<<"'."<<endl;
                                cerr<<_("Throwing out job...")<<endl;
                                job_list.pop_front();
                                continue;
@@ -932,6 +1196,8 @@ int main(int argc, char *argv[])
                        extract_list_canvases(imageargs, list_canvases);
                        job_list.front().list_canvases = list_canvases;
 
+                       extract_canvas_info(imageargs, job_list.front());
+
                        job_list.front().root->set_time(0);
 
                        string canvasid;
@@ -940,7 +1206,8 @@ int main(int argc, char *argv[])
                        {
                                try
                                {
-                                       job_list.front().canvas=job_list.front().root->find_canvas(canvasid);
+                                       String warnings;
+                                       job_list.front().canvas=job_list.front().root->find_canvas(canvasid, warnings);
                                }
                                catch(Exception::IDNotFound)
                                {
@@ -976,9 +1243,13 @@ int main(int argc, char *argv[])
                                extract_append(imageargs,composite_file);
                                if(!composite_file.empty())
                                {
-                                       Canvas::Handle composite(open_canvas(composite_file));
+                                       String errors, warnings;
+                                       Canvas::Handle composite(open_canvas(composite_file, errors, warnings));
                                        if(!composite)
+                                       {
+                                               cerr<<_("Unable to append '")<<composite_file<<"'."<<endl;
                                                break;
+                                       }
                                        Canvas::reverse_iterator iter;
                                        for(iter=composite->rbegin();iter!=composite->rend();++iter)
                                        {
@@ -1134,6 +1405,11 @@ int main(int argc, char *argv[])
                        list_child_canvases(job_list.front().filename + "#", job_list.front().canvas);
                        cerr << endl;
                }
+               else if (job_list.front().canvas_info)
+               {
+                       list_canvas_info(job_list.front());
+                       cerr << endl;
+               }
                else
                {
                        VERBOSE_OUT(1)<<_("Rendering...")<<endl;