source/grid.cpp

   1 /* $Id$
   2
   3 This file is part of libmspgltk
   4 Copyright © 2011  Mikko Rasa, Mikkosoft Productions
   5 Distributed under the LGPL
   6 */
   7
   8 #include "grid.h"
   9
  10 using namespace std;
  11
  12 namespace Msp {
  13 namespace GLtk {
  14
  15 Grid::Grid(bool u):
  16         uniform(u),
  17         cur_column(0),
  18         first(true),
  19         skipped(false)
  20 { }
  21
  22 void Grid::start_row()
  23 {
  24         cur_column = 0;
  25         first = true;
  26 }
  27
  28 void Grid::skip_cell()
  29 {
  30         ++cur_column;
  31         skipped = true;
  32         if(cur_column>=columns.size())
  33                 columns.push_back(0);
  34 }
  35
  36 Layout::Slot *Grid::create_slot(Widget &wdg)
  37 {
  38         Slot *slot = new Slot(*this, wdg);
  39
  40         slot->vert_pack.gravity = 1;
  41
  42         if(!slots.empty())
  43         {
  44                 Slot &prev = *slots.back();
  45                 if(first)
  46                         slot->constraints.push_back(Constraint(BELOW, prev));
  47                 else
  48                 {
  49                         slot->constraints.push_back(Constraint(ALIGN_TOP, prev));
  50                         slot->constraints.push_back(Constraint(ALIGN_BOTTOM, prev));
  51                         if(!skipped)
  52                                 slot->constraints.push_back(Constraint(RIGHT_OF, prev));
  53                 }
  54
  55                 if(uniform)
  56                 {
  57                         slot->constraints.push_back(Constraint(COPY_WIDTH, prev));
  58                         slot->constraints.push_back(Constraint(COPY_HEIGHT, prev));
  59                 }
  60
  61                 if(cur_column<columns.size() && columns[cur_column])
  62                 {
  63                         Slot &col = *columns[cur_column];
  64                         slot->constraints.push_back(Constraint(ALIGN_LEFT, col));
  65                         slot->constraints.push_back(Constraint(ALIGN_RIGHT, col));
  66                 }
  67         }
  68
  69         if(cur_column>=columns.size())
  70                 columns.push_back(slot);
  71         else if(!columns[cur_column])
  72                 columns[cur_column] = slot;
  73
  74         first = false;
  75         skipped = false;
  76         ++cur_column;
  77
  78         return slot;
  79 }
  80
  81 } // namespace GLtk
  82 } // namespace Msp