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 <msp/input/keys.h>
  12 #include "entry.h"
  13 #include "graphic.h"
  14 #include "part.h"
  15 #include "style.h"
  16
  17 using namespace std;
  18
  19 namespace Msp {
  20 namespace GLtk {
  21
  22 Entry::Entry(const Resources &r, const string &t):
  23         Widget(r),
  24         text(style),
  25         edit_pos(0)
  26 {
  27         update_style();
  28         set_text(t);
  29 }
  30
  31 void Entry::set_text(const string &t)
  32 {
  33         text=t;
  34         edit_pos=text.size();
  35 }
  36
  37 void Entry::key_press(unsigned key, unsigned, wchar_t ch)
  38 {
  39         if(key==Input::KEY_LEFT)
  40         {
  41                 if(edit_pos>0)
  42                         --edit_pos;
  43         }
  44         else if(key==Input::KEY_RIGHT)
  45         {
  46                 if(edit_pos<text.size())
  47                         ++edit_pos;
  48         }
  49         else if(key==Input::KEY_BACKSPACE)
  50         {
  51                 if(edit_pos>0)
  52                         text.erase(--edit_pos, 1);
  53         }
  54         else if(key==Input::KEY_ENTER)
  55                 signal_enter.emit();
  56         else if(ch>=' ')
  57         {
  58                 text.insert(edit_pos, Codecs::encode<Codecs::Utf8>(Codecs::ustring(1, ch)));
  59                 ++edit_pos;
  60         }
  61 }
  62
  63 void Entry::render_special(const Part &part) const
  64 {
  65         if(part.get_name()=="text")
  66                 text.render(part, geom);
  67         else if(part.get_name()=="cursor")
  68         {
  69                 if(!part.get_graphic(state))
  70                         return;
  71
  72                 const GL::Font *const font=style->get_font();
  73                 const float font_size=font->get_default_size();
  74
  75                 Geometry rgeom=part.get_geometry();
  76                 rgeom.x=static_cast<unsigned>(font->get_string_width(text.get().substr(0, edit_pos))*font_size);
  77                 rgeom.w=static_cast<unsigned>(font->get_string_width(text.get())*font_size);
  78                 part.get_alignment().apply(rgeom, geom, part.get_margin());
  79
  80                 GL::push_matrix();
  81                 GL::translate(rgeom.x, rgeom.y, 0);
  82                 part.get_graphic(state)->render(part.get_geometry().w, rgeom.h);
  83                 GL::pop_matrix();
  84         }
  85 }
  86
  87
  88 Entry::Loader::Loader(Entry &ent):
  89         Widget::Loader(ent)
  90 { }
  91
  92 } // namespace GLtk
  93 } // namespace Msp