source/entry.cpp

   1 /* $Id$
   2
   3 This file is part of libmspgltk
   4 Copyright © 2007  Mikko Rasa, Mikkosoft Productions
   5 Distributed under the LGPL
   6 */
   7
   8 #include <msp/gl/matrix.h>
   9 #include <msp/gl/texture.h>
  10 #include <msp/gl/transform.h>
  11 #include "entry.h"
  12 #include "graphic.h"
  13 #include "part.h"
  14 #include "style.h"
  15
  16 using namespace std;
  17
  18 namespace Msp {
  19 namespace GLtk {
  20
  21 Entry::Entry(const Resources &r, const string &t):
  22         Widget(r),
  23         text(t),
  24         edit_pos(0)
  25 {
  26         update_style();
  27 }
  28
  29 void Entry::set_text(const string &t)
  30 {
  31         text=t;
  32         if(edit_pos>text.size())
  33                 edit_pos=text.size();
  34 }
  35
  36 void Entry::key_press(unsigned key, unsigned, wchar_t ch)
  37 {
  38         if(key==100)
  39         {
  40                 if(edit_pos>0)
  41                         --edit_pos;
  42         }
  43         else if(key==102)
  44         {
  45                 if(edit_pos<text.size())
  46                         ++edit_pos;
  47         }
  48         else if(key==22)
  49         {
  50                 if(edit_pos>0)
  51                         text.erase(--edit_pos, 1);
  52         }
  53         else
  54         {
  55                 text+=ch;
  56                 ++edit_pos;
  57         }
  58 }
  59
  60 void Entry::render_special(const Part &part) const
  61 {
  62         if(part.get_name()=="text")
  63                 render_text(part, text);
  64         else if(part.get_name()=="cursor")
  65         {
  66                 if(!part.get_graphic(state))
  67                         return;
  68
  69                 const GL::Font *const font=style->get_font();
  70                 const float font_size=font->get_default_size();
  71
  72                 Geometry rgeom=part.get_geometry();
  73                 rgeom.x=static_cast<unsigned>(font->get_string_width(text.substr(0, edit_pos))*font_size);
  74                 rgeom.w=static_cast<unsigned>(font->get_string_width(text)*font_size);
  75                 part.get_alignment().apply(rgeom, geom, part.get_margin());
  76
  77                 GL::push_matrix();
  78                 GL::translate(rgeom.x, rgeom.y, 0);
  79                 part.get_graphic(state)->render(part.get_geometry().w, rgeom.h);
  80                 GL::pop_matrix();
  81         }
  82 }
  83
  84
  85 Entry::Loader::Loader(Entry &ent):
  86         Widget::Loader(ent)
  87 { }
  88
  89 } // namespace GLtk
  90 } // namespace Msp