synfig-studio/trunk/src/gtkmm/widget_canvaschooser.cpp

   1 /* === S Y N F I G ========================================================= */
   2 /*!     \file widget_canvaschooser.cpp
   3 **      \brief Template File
   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 /* ========================================================================= */
  23
  24 /* === H E A D E R S ======================================================= */
  25
  26 #ifdef USING_PCH
  27 #       include "pch.h"
  28 #else
  29 #ifdef HAVE_CONFIG_H
  30 #       include <config.h>
  31 #endif
  32
  33 #include "widget_canvaschooser.h"
  34 #include <gtkmm/menu.h>
  35 #include "app.h"
  36
  37 #include "general.h"
  38
  39 #endif
  40
  41 /* === U S I N G =========================================================== */
  42
  43 using namespace std;
  44 using namespace etl;
  45 using namespace synfig;
  46 using namespace studio;
  47
  48 /* === M A C R O S ========================================================= */
  49
  50 /* === G L O B A L S ======================================================= */
  51
  52 /* === P R O C E D U R E S ================================================= */
  53
  54 /* === M E T H O D S ======================================================= */
  55
  56 Widget_CanvasChooser::Widget_CanvasChooser()
  57 {
  58 }
  59
  60 Widget_CanvasChooser::~Widget_CanvasChooser()
  61 {
  62 }
  63
  64 void
  65 Widget_CanvasChooser::set_parent_canvas(synfig::Canvas::Handle x)
  66 {
  67         assert(x);
  68         parent_canvas=x;
  69 }
  70
  71 void
  72 Widget_CanvasChooser::set_value_(synfig::Canvas::Handle data)
  73 {
  74         set_value(data);
  75         activate();
  76 }
  77
  78 void
  79 Widget_CanvasChooser::set_value(synfig::Canvas::Handle data)
  80 {
  81         assert(parent_canvas);
  82         canvas=data;
  83
  84         canvas_menu=manage(new class Gtk::Menu());
  85
  86         synfig::Canvas::Children::iterator iter;
  87         synfig::Canvas::Children &children(parent_canvas->children());
  88         String label;
  89
  90         if(canvas)
  91         {
  92                 label=canvas->get_name().empty()?canvas->get_id():canvas->get_name();
  93                 canvas_menu->items().push_back(Gtk::Menu_Helpers::MenuElem(label));
  94         }
  95
  96         for(iter=children.begin();iter!=children.end();iter++)
  97                 if(*iter!=canvas)
  98                 {
  99                         label=(*iter)->get_name().empty()?(*iter)->get_id():(*iter)->get_name();
 100                         canvas_menu->items().push_back(
 101                                 Gtk::Menu_Helpers::MenuElem(
 102                                         label,
 103                                         sigc::bind(
 104                                                 sigc::mem_fun(
 105                                                         *this,
 106                                                         &Widget_CanvasChooser::set_value_
 107                                                 ),
 108                                                 *iter
 109                                         )
 110                                 )
 111                         );
 112                 }
 113         canvas_menu->items().push_back(
 114                 Gtk::Menu_Helpers::MenuElem(
 115                         _("Other..."),
 116                         sigc::mem_fun(*this,&Widget_CanvasChooser::chooser_menu)
 117                 )
 118         );
 119         set_menu(*canvas_menu);
 120
 121         if(canvas)
 122                 set_history(0);
 123 }
 124
 125 const etl::handle<synfig::Canvas> &
 126 Widget_CanvasChooser::get_value()
 127 {
 128         return canvas;
 129 }
 130
 131 void
 132 Widget_CanvasChooser::chooser_menu()
 133 {
 134         String canvas_name;
 135
 136         if (!App::dialog_entry(_("Choose Canvas"),_("Enter the relative name of the canvas that you want"),canvas_name))
 137         {
 138                 // the user hit 'cancel', so set the parameter back to its previous value
 139                 set_value_(canvas);
 140                 return;
 141         }
 142
 143         if (canvas_name == "")
 144         {
 145                 App::dialog_error_blocking(_("Error"),_("No canvas name was specified"));
 146                 set_value_(canvas);
 147                 return;
 148         }
 149
 150         Canvas::Handle new_canvas;
 151         try
 152         {
 153                 String warnings;
 154                 new_canvas=parent_canvas->find_canvas(canvas_name, warnings);
 155                 set_value_(new_canvas);
 156         }
 157         catch(std::runtime_error x)
 158         {
 159                 App::dialog_error_blocking(_("Error:Exception Thrown"),String(_("Error selecting canvas:\n\n")) + x.what());
 160                 set_value_(canvas);
 161         }
 162         catch(...)
 163         {
 164                 App::dialog_error_blocking(_("Error"),_("Unknown Exception"));
 165                 set_value_(canvas);
 166         }
 167 }