source/table.cpp

   1 #include <msp/gl/matrix.h>
   2 #include <msp/gl/transform.h>
   3 #include "part.h"
   4 #include "style.h"
   5 #include "table.h"
   6
   7 using namespace std;
   8
   9 namespace Msp {
  10 namespace GLtk {
  11
  12 Table::Table():
  13         rows(1),
  14         columns(1),
  15         data(1),
  16         col_w(1)
  17 {
  18         focusable = false;
  19 }
  20
  21 void Table::set_rows(unsigned r)
  22 {
  23         rows = r;
  24         data.resize(rows*columns);
  25 }
  26
  27 void Table::set_columns(unsigned c)
  28 {
  29         vector<string> new_data(rows*c);
  30         for(unsigned i=0; i<rows; ++i)
  31                 for(unsigned j=0; j<min(c, columns); ++j)
  32                         new_data[i*c+j].swap(data[i*columns+j]);
  33         data.swap(new_data);
  34         columns = c;
  35
  36         col_w.resize(columns);
  37 }
  38
  39 void Table::set_column_width(unsigned c, unsigned w)
  40 {
  41         if(c>=columns)
  42                 throw InvalidParameterValue("Column index out of bounds");
  43         col_w[c] = w;
  44 }
  45
  46 void Table::set_cell_text(unsigned r, unsigned c, const string &t)
  47 {
  48         if(r>=rows || c>=columns)
  49                 throw InvalidParameterValue("Cell coordinates out of bounds");
  50
  51         data[r*columns+c] = t;
  52 }
  53
  54 void Table::render_special(const Part &part) const
  55 {
  56         if(part.get_name()=="cells")
  57         {
  58                 const GL::Font *const font = style->get_font();
  59                 const float font_size = font->get_default_size();
  60
  61                 unsigned free_width = geom.w;
  62                 for(unsigned i=0; i<columns; ++i)
  63                         free_width -= col_w[i];
  64
  65                 Geometry cgeom;
  66                 cgeom.h = geom.h/rows;
  67                 cgeom.y = geom.h-cgeom.h;
  68
  69                 for(unsigned i=0; i<rows; ++i)
  70                 {
  71                         cgeom.x = 0;
  72                         for(unsigned j=0; j<columns; ++j)
  73                         {
  74                                 if(col_w[j])
  75                                         cgeom.w = col_w[j];
  76                                 else
  77                                         cgeom.w = free_width/columns;
  78
  79                                 const string &text = data[i*columns+j];
  80                                 Geometry rgeom;
  81                                 rgeom.x = cgeom.x;
  82                                 rgeom.y = cgeom.y;
  83                                 rgeom.w = static_cast<unsigned>(font->get_string_width(text)*font_size);
  84                                 rgeom.h = static_cast<unsigned>((font->get_ascent()-font->get_descent())*font_size);
  85
  86                                 part.get_alignment().apply(rgeom, cgeom, part.get_margin());
  87
  88                                 GL::push_matrix();
  89                                 GL::translate(rgeom.x, rgeom.y, 0);
  90                                 GL::scale_uniform(font_size);
  91                                 font->draw_string(text);
  92                                 GL::pop_matrix();
  93
  94                                 cgeom.x += cgeom.w;
  95                         }
  96
  97                         cgeom.y -= cgeom.h;
  98                 }
  99         }
 100 }
 101
 102 void Table::on_style_change()
 103 {
 104 }
 105
 106
 107 Table::Loader::Loader(Table &t):
 108         Widget::Loader(t)
 109 {
 110         add("cell_text",    &Loader::cell_text);
 111         add("column_width", &Loader::column_width);
 112         add("columns",      &Loader::columns);
 113         add("rows",         &Loader::rows);
 114 }
 115
 116 void Table::Loader::cell_text(unsigned r, unsigned c, const string &t)
 117 {
 118         static_cast<Table &>(obj).set_cell_text(r, c, t);
 119 }
 120
 121 void Table::Loader::column_width(unsigned c, unsigned w)
 122 {
 123         static_cast<Table &>(obj).set_column_width(c, w);
 124 }
 125
 126 void Table::Loader::columns(unsigned c)
 127 {
 128         static_cast<Table &>(obj).set_columns(c);
 129 }
 130
 131 void Table::Loader::rows(unsigned r)
 132 {
 133         static_cast<Table &>(obj).set_rows(r);
 134 }
 135
 136 } // namespace GLtk
 137 } // namespace Msp