source/grid.cpp

   1 #include "grid.h"
   2
   3 using namespace std;
   4
   5 namespace Msp {
   6 namespace GLtk {
   7
   8 Grid::Grid(bool u):
   9         uniform(u),
  10         cur_column(0),
  11         first(true),
  12         skipped(false)
  13 { }
  14
  15 void Grid::start_row()
  16 {
  17         cur_column = 0;
  18         first = true;
  19 }
  20
  21 void Grid::skip_cell()
  22 {
  23         ++cur_column;
  24         skipped = true;
  25         if(cur_column>=columns.size())
  26                 columns.push_back(0);
  27 }
  28
  29 Layout::Slot *Grid::create_slot(Widget &wdg)
  30 {
  31         Slot *slot = new Slot(*this, wdg);
  32
  33         slot->vert_pack.gravity = 1;
  34
  35         if(!slots.empty())
  36         {
  37                 Slot &prev = *slots.back();
  38                 if(first)
  39                         slot->constraints.push_back(Constraint(BELOW, prev));
  40                 else
  41                 {
  42                         slot->constraints.push_back(Constraint(ALIGN_TOP, prev));
  43                         slot->constraints.push_back(Constraint(ALIGN_BOTTOM, prev));
  44                         if(!skipped)
  45                                 slot->constraints.push_back(Constraint(RIGHT_OF, prev));
  46                 }
  47
  48                 if(uniform)
  49                 {
  50                         slot->constraints.push_back(Constraint(COPY_WIDTH, prev));
  51                         slot->constraints.push_back(Constraint(COPY_HEIGHT, prev));
  52                 }
  53
  54                 if(cur_column<columns.size() && columns[cur_column])
  55                 {
  56                         Slot &col = *columns[cur_column];
  57                         slot->constraints.push_back(Constraint(ALIGN_LEFT, col));
  58                         slot->constraints.push_back(Constraint(ALIGN_RIGHT, col));
  59                 }
  60         }
  61
  62         if(cur_column>=columns.size())
  63                 columns.push_back(slot);
  64         else if(!columns[cur_column])
  65                 columns[cur_column] = slot;
  66
  67         first = false;
  68         skipped = false;
  69         ++cur_column;
  70
  71         return slot;
  72 }
  73
  74 } // namespace GLtk
  75 } // namespace Msp