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