source/table.cpp

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