table.cpp

   1 #include <stdexcept>
   2 #include <msp/gl/matrix.h>
   3 #include <msp/gl/meshbuilder.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::rebuild_special(const Part &part, CachedPart &cache)
  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                 cache.texture = &font.get_texture();
  71                 cache.clear_mesh();
  72
  73                 GL::MeshBuilder bld(*cache.mesh);
  74                 for(unsigned i=0; i<rows; ++i)
  75                 {
  76                         cgeom.x = 0;
  77                         for(unsigned j=0; j<columns; ++j)
  78                         {
  79                                 if(col_w[j])
  80                                         cgeom.w = col_w[j];
  81                                 else
  82                                         cgeom.w = free_width/columns;
  83
  84                                 const string &text = data[i*columns+j];
  85                                 Geometry rgeom;
  86                                 rgeom.x = cgeom.x;
  87                                 rgeom.y = cgeom.y;
  88                                 rgeom.w = static_cast<unsigned>(font.get_string_width(text)*font_size);
  89                                 rgeom.h = static_cast<unsigned>((font.get_ascent()-font.get_descent())*font_size);
  90
  91                                 part.get_alignment().apply(rgeom, cgeom, part.get_margin());
  92
  93                                 GL::MatrixStack::Push _push(bld.matrix());
  94                                 bld.matrix() *= GL::Matrix::translation(rgeom.x, rgeom.y, 0);
  95                                 bld.matrix() *= GL::Matrix::scaling(font_size);
  96                                 font.draw_string(text);
  97
  98                                 cgeom.x += cgeom.w;
  99                         }
 100
 101                         cgeom.y -= cgeom.h;
 102                 }
 103         }
 104 }
 105
 106 void Table::on_style_change()
 107 {
 108 }
 109
 110
 111 Table::Loader::Loader(Table &t):
 112         Widget::Loader(t)
 113 {
 114         add("cell_text",    &Loader::cell_text);
 115         add("column_width", &Loader::column_width);
 116         add("columns",      &Loader::columns);
 117         add("rows",         &Loader::rows);
 118 }
 119
 120 void Table::Loader::cell_text(unsigned r, unsigned c, const string &t)
 121 {
 122         static_cast<Table &>(obj).set_cell_text(r, c, t);
 123 }
 124
 125 void Table::Loader::column_width(unsigned c, unsigned w)
 126 {
 127         static_cast<Table &>(obj).set_column_width(c, w);
 128 }
 129
 130 void Table::Loader::columns(unsigned c)
 131 {
 132         static_cast<Table &>(obj).set_columns(c);
 133 }
 134
 135 void Table::Loader::rows(unsigned r)
 136 {
 137         static_cast<Table &>(obj).set_rows(r);
 138 }
 139
 140 } // namespace GLtk
 141 } // namespace Msp