source/designer/objectselecttool.cpp

   1 #include <msp/input/keys.h>
   2 #include <msp/strings/format.h>
   3 #include "designer.h"
   4 #include "objectselecttool.h"
   5
   6 using namespace std;
   7 using namespace Msp;
   8 using namespace R2C2;
   9
  10 ObjectSelectTool::ObjectSelectTool(Designer &d, Input::Keyboard &k, Input::Mouse &m, Selection &s):
  11         Tool(d, k, m),
  12         selection(s)
  13 {
  14         update_status();
  15 }
  16
  17 void ObjectSelectTool::key_press(unsigned key)
  18 {
  19         if(key==Input::KEY_ESC)
  20                 selection.clear();
  21         else if(key==Msp::Input::KEY_PLUS)
  22                 selection.select_more();
  23         else if(key==Msp::Input::KEY_L && shift_held)
  24                 selection.select_blocks();
  25         else if(key==Msp::Input::KEY_L)
  26                 selection.select_linked();
  27         else
  28                 return Tool::key_press(key);
  29
  30         update_status();
  31 }
  32
  33 void ObjectSelectTool::button_press(unsigned btn)
  34 {
  35         if(btn==1)
  36         {
  37                 Ray ray = designer.get_view().create_ray(pointer.x, pointer.y);
  38                 Object *obj = designer.get_layout().pick<Object>(ray);
  39                 if(obj)
  40                 {
  41                         if(!shift_held)
  42                                 selection.clear();
  43                         selection.toggle_object(obj);
  44
  45                         update_status();
  46                 }
  47         }
  48 }
  49
  50 void ObjectSelectTool::update_status()
  51 {
  52         const set<Object *> &objects = selection.get_objects();
  53         float track_length = 0;
  54         unsigned other_count = 0;
  55         for(set<Object *>::const_iterator i=objects.begin(); i!=objects.end(); ++i)
  56         {
  57                 if(Track *track = dynamic_cast<Track *>(*i))
  58                         track_length += track->get_type().get_total_length();
  59                 else
  60                         ++other_count;
  61         }
  62
  63         if(!track_length && !other_count)
  64                 set_status(string());
  65         else
  66         {
  67                 string s;
  68                 if(track_length)
  69                 {
  70                         s += format("%.2fm of track", track_length);
  71                         if(other_count)
  72                                 s += " and ";
  73                 }
  74                 if(other_count)
  75                 {
  76                         s += lexical_cast<string>(other_count);
  77                         if(track_length)
  78                                 s += " other";
  79                         s += " object";
  80                         if(other_count>1)
  81                                 s += 's';
  82                 }
  83                 s += " selected";
  84                 set_status(s);
  85         }
  86 }