TextBox Class Reference

#include <text_box.h>

Inheritance diagram for TextBox:

[legend]Collaboration diagram for TextBox:

[legend]List of all members.

Public Member Functions
	TextBox (const std::string &label, const Rectanglei &rect, Font &_font)
	~TextBox ()
void	SendKey (SDL_keysym key)
void	Draw (const Point2i &mousePosition, Surface &surf) const
void	SetText (std::string const &new_txt)
void	SetCursor (std::string::size_type pos)
Protected Attributes
std::string::size_type	cursor_pos

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Detailed Description

Definition at line 28 of file text_box.h.

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Constructor & Destructor Documentation

TextBox::TextBox	(	const std::string &	label,
		const Rectanglei &	rect,
		Font &	_font
	)

Definition at line 26 of file text_box.cpp.

                                                                             :
  Label(label, rect, _font),
  cursor_pos(label.size())
{
}

TextBox::~TextBox

(

)

Definition at line 50 of file text_box.cpp.

                 {
}

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Member Function Documentation

void TextBox::Draw	(	const Point2i &	mousePosition,
		Surface &	surf
	)			const [virtual]

Reimplemented from Label.

Definition at line 108 of file text_box.cpp.

{
  if (!hidden) 
    {
      if(have_focus)
        surf.BoxColor(*this, highlightOptionColorBox);

      surf.RectangleColor(*this, defaultOptionColorRect);

      Label::Draw(mousePosition, surf);

      //sort of a hacky way to get the cursor pos, but I couldn't find anything better...
      Text txt_before_cursor(*txt_label);
      txt_before_cursor.Set(GetText().substr(0, cursor_pos));

      surf.VlineColor(GetPositionX()+txt_before_cursor.GetWidth(),
              GetPositionY()+2,
              GetPositionY()+GetSizeY()-4, c_white);
    }
}

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void TextBox::SendKey

(

SDL_keysym

key

)

[virtual]

Reimplemented from Widget.

Definition at line 53 of file text_box.cpp.

{
  need_redrawing = true;

  std::string new_txt = GetText();

  if (strcmp(SDL_GetKeyName(key.sym),"backspace")==0)
  {
    if(cursor_pos != 0)
    {
      while((new_txt[--cursor_pos] & 0xc0) == 0x80)
      {
        new_txt.erase(cursor_pos, 1);
      }
      new_txt.erase(cursor_pos, 1);
      Label::SetText(new_txt);
    }
  }
  else if(strcmp(SDL_GetKeyName(key.sym),"left")==0)
  {
    if(cursor_pos != 0)
    {
      while((new_txt[--cursor_pos] & 0xc0) == 0x80);
    }
  }
  else if(strcmp(SDL_GetKeyName(key.sym),"right")==0)
  {
    if(cursor_pos < new_txt.size())
    {
      while((new_txt[++cursor_pos] & 0xc0) == 0x80);
    }
  }
  else
  {
    if(key.unicode > 0)
    {
      if(key.unicode < 0x80) { // 1 byte char
          new_txt.insert(cursor_pos++, 1, (char)key.unicode);
      }
      else if (key.unicode < 0x800) // 2 byte char
      {
        new_txt.insert(cursor_pos++, 1, (char)(((key.unicode & 0x7c0) >> 6) | 0xc0));
        new_txt.insert(cursor_pos++, 1, (char)((key.unicode & 0x3f) | 0x80));
      }
      else // if (key.unicode < 0x10000) // 3 byte char
      {
        new_txt.insert(cursor_pos++, 1, (char)(((key.unicode & 0xf000) >> 12) | 0xe0));
        new_txt.insert(cursor_pos++, 1, (char)(((key.unicode & 0xfc0) >> 6) | 0x80));
        new_txt.insert(cursor_pos++, 1, (char)((key.unicode & 0x3f) | 0x80));
      }
    }
    Label::SetText(new_txt);
  }
}

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void TextBox::SetCursor

(

std::string::size_type

pos

)

Definition at line 38 of file text_box.cpp.

{
  if(pos > GetText().size())
  {
    cursor_pos = GetText().size();
  }
  else
  {
    cursor_pos = pos;
  }
}

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void TextBox::SetText

(

std::string const &

new_txt

)

Reimplemented from Label.

Definition at line 32 of file text_box.cpp.

{
  Label::SetText(new_txt);
  cursor_pos = new_txt.size();
}

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Member Data Documentation

std::string::size_type TextBox::cursor_pos [protected]

Definition at line 31 of file text_box.h.

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The documentation for this class was generated from the following files:

• src/gui/text_box.h
• src/gui/text_box.cpp

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