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::focus_in()
  61 {
  62         if(state!=DISABLED)
  63                 state=ACTIVE;
  64 }
  65
  66 void Entry::focus_out()
  67 {
  68         if(state==ACTIVE)
  69                 state=NORMAL;
  70 }
  71
  72 void Entry::render_special(const Part &part) const
  73 {
  74         if(part.get_name()=="text")
  75                 render_text(part, text);
  76         else if(part.get_name()=="cursor")
  77         {
  78                 if(!part.get_graphic(state))
  79                         return;
  80
  81                 const GL::Font *const font=style->get_font();
  82                 const float font_size=font->get_default_size();
  83
  84                 const Geometry &pgeom=part.get_geometry();
  85                 unsigned gw=pgeom.w;
  86                 unsigned gh=(part.get_fill_y() ? geom.h : pgeom.h);
  87
  88                 Geometry rgeom;
  89                 rgeom.w=static_cast<unsigned>(font->get_string_width(text)*font_size);
  90                 rgeom.h=(part.get_fill_y() ? geom.h : pgeom.h);
  91                 part.get_alignment().apply(rgeom, geom, part.get_margin());
  92                 rgeom.x+=static_cast<unsigned>(font->get_string_width(text.substr(0, edit_pos))*font_size);
  93
  94                 GL::push_matrix();
  95                 GL::translate(rgeom.x, rgeom.y, 0);
  96
  97                 part.get_graphic(state)->render(gw, gh);
  98
  99                 GL::pop_matrix();
 100         }
 101 }
 102
 103
 104 Entry::Loader::Loader(Entry &ent):
 105         Widget::Loader(ent)
 106 { }
 107
 108 } // namespace GLtk
 109 } // namespace Msp