source/table.cpp

   1 /* $Id$
   2
   3 This file is part of libmspgltk
   4 Copyright © 2008  Mikko Rasa, Mikkosoft Productions
   5 Distributed under the LGPL
   6 */
   7
   8 #include <msp/gl/matrix.h>
   9 #include <msp/gl/transform.h>
  10 #include "part.h"
  11 #include "style.h"
  12 #include "table.h"
  13
  14 using namespace std;
  15
  16 namespace Msp {
  17 namespace GLtk {
  18
  19 Table::Table():
  20         rows(1),
  21         columns(1),
  22         data(1),
  23         col_w(1)
  24 {
  25         focusable = false;
  26 }
  27
  28 void Table::set_rows(unsigned r)
  29 {
  30         rows = r;
  31         data.resize(rows*columns);
  32 }
  33
  34 void Table::set_columns(unsigned c)
  35 {
  36         vector<string> new_data(rows*c);
  37         for(unsigned i=0; i<rows; ++i)
  38                 for(unsigned j=0; j<min(c, columns); ++j)
  39                         new_data[i*c+j].swap(data[i*columns+j]);
  40         data.swap(new_data);
  41         columns = c;
  42
  43         col_w.resize(columns);
  44 }
  45
  46 void Table::set_column_width(unsigned c, unsigned w)
  47 {
  48         if(c>=columns)
  49                 throw InvalidParameterValue("Column index out of bounds");
  50         col_w[c] = w;
  51 }
  52
  53 void Table::set_cell_text(unsigned r, unsigned c, const string &t)
  54 {
  55         if(r>=rows || c>=columns)
  56                 throw InvalidParameterValue("Cell coordinates out of bounds");
  57
  58         data[r*columns+c] = t;
  59 }
  60
  61 void Table::render_special(const Part &part) const
  62 {
  63         if(part.get_name()=="cells")
  64         {
  65                 const GL::Font *const font = style->get_font();
  66                 const float font_size = font->get_default_size();
  67
  68                 unsigned free_width = geom.w;
  69                 for(unsigned i=0; i<columns; ++i)
  70                         free_width -= col_w[i];
  71
  72                 Geometry cgeom;
  73                 cgeom.h = geom.h/rows;
  74                 cgeom.y = geom.h-cgeom.h;
  75
  76                 for(unsigned i=0; i<rows; ++i)
  77                 {
  78                         cgeom.x = 0;
  79                         for(unsigned j=0; j<columns; ++j)
  80                         {
  81                                 if(col_w[j])
  82                                         cgeom.w = col_w[j];
  83                                 else
  84                                         cgeom.w = free_width/columns;
  85
  86                                 const string &text = data[i*columns+j];
  87                                 Geometry rgeom;
  88                                 rgeom.x = cgeom.x;
  89                                 rgeom.y = cgeom.y;
  90                                 rgeom.w = static_cast<unsigned>(font->get_string_width(text)*font_size);
  91                                 rgeom.h = static_cast<unsigned>((font->get_ascent()-font->get_descent())*font_size);
  92
  93                                 part.get_alignment().apply(rgeom, cgeom, part.get_margin());
  94
  95                                 GL::push_matrix();
  96                                 GL::translate(rgeom.x, rgeom.y, 0);
  97                                 GL::scale_uniform(font_size);
  98                                 font->draw_string(text);
  99                                 GL::pop_matrix();
 100
 101                                 cgeom.x += cgeom.w;
 102                         }
 103
 104                         cgeom.y -= cgeom.h;
 105                 }
 106         }
 107 }
 108
 109 void Table::on_style_change()
 110 {
 111 }
 112
 113
 114 Table::Loader::Loader(Table &t):
 115         Widget::Loader(t)
 116 {
 117         add("cell_text",    &Loader::cell_text);
 118         add("column_width", &Loader::column_width);
 119         add("columns",      &Loader::columns);
 120         add("rows",         &Loader::rows);
 121 }
 122
 123 void Table::Loader::cell_text(unsigned r, unsigned c, const string &t)
 124 {
 125         static_cast<Table &>(obj).set_cell_text(r, c, t);
 126 }
 127
 128 void Table::Loader::column_width(unsigned c, unsigned w)
 129 {
 130         static_cast<Table &>(obj).set_column_width(c, w);
 131 }
 132
 133 void Table::Loader::columns(unsigned c)
 134 {
 135         static_cast<Table &>(obj).set_columns(c);
 136 }
 137
 138 void Table::Loader::rows(unsigned r)
 139 {
 140         static_cast<Table &>(obj).set_rows(r);
 141 }
 142
 143 } // namespace GLtk
 144 } // namespace Msp