Button Class Reference

#include <button.hpp>

List of all members.

Public Member Functions
	Button (SurfacePtr image_, std::string info_, SDLKey binding_)
	Button (const Button &rhs)
	~Button ()
Button &	operator= (const Button &rhs)
void	draw (DrawingContext &context, bool selected)
int	event (SDL_Event &event, int x_offset=0, int y_offset=0)
Static Public Attributes
static FontPtr	info_font
Private Attributes
Vector	pos
Vector	size
SurfacePtr	image
SDLKey	binding
int	id
int	state
std::string	info
Friends
class	ButtonGroup

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Detailed Description

Definition at line 38 of file button.hpp.

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Constructor & Destructor Documentation

Button::Button	(	SurfacePtr	image_,
		std::string	info_,
		SDLKey	binding_
	)

Definition at line 24 of file button.cpp.

References image, info, and size.

                                                                  :
  pos(),
  size(),
  image(),
  binding(binding_),
  id(),
  state(),
  info()
{
  image = image_;
  size = Vector(image->get_width(), image->get_height());
  id = 0;
  info = info_;
}

Button::Button

(

const Button &

rhs

)

Definition at line 39 of file button.cpp.

                                :
  pos(rhs.pos),
  size(rhs.size),
  image(rhs.image),
  binding(rhs.binding),
  id(rhs.id),
  state(rhs.state),
  info(rhs.info)
{
}

Button::~Button

(

)

Definition at line 50 of file button.cpp.

{
}

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Member Function Documentation

Button & Button::operator=

(

const Button &

rhs

)

Definition at line 55 of file button.cpp.

References binding, id, image, info, pos, size, and state.

{
  if (this != &rhs)
  {
    pos = rhs.pos;
    size = rhs.size;
    image = rhs.image;
    binding = rhs.binding;
    id = rhs.id;
    state = rhs.state;
    info = rhs.info;
  }
  return *this;
}

void Button::draw	(	DrawingContext &	context,
		bool	selected
	)

Definition at line 70 of file button.cpp.

References ALIGN_LEFT, binding, BT_SHOW_INFO, DrawingContext::draw_filled_rect(), DrawingContext::draw_surface_part(), DrawingContext::draw_text(), DrawingContext::get_translation(), image, info, info_font, LAYER_GUI, pos, SCREEN_HEIGHT, size, state, Vector::x, and Vector::y.

{
  if(selected)
    context.draw_filled_rect(pos, size, Color (200,240,220), LAYER_GUI);
  else
    context.draw_filled_rect(pos, size, Color (200,200,220), LAYER_GUI);

  Vector tanslation = -context.get_translation();
  if(state == BT_SHOW_INFO)
  {
    Vector offset;
    if(pos.x + tanslation.x < 100 && pos.y + tanslation.y > SCREEN_HEIGHT - 20)
      offset = Vector(size.x, - 10);
    else if(pos.x + tanslation.x < 100)
      offset = Vector(size.x, 0);
    else
      offset = Vector(-30, -size.y/2);
    context.draw_text(info_font, info, pos + offset, ALIGN_LEFT, LAYER_GUI+2);
    if(binding != 0)
      context.draw_text(info_font, "(" + std::string(SDL_GetKeyName(binding)) +
                        ")", pos + offset + Vector(0,12),
                        ALIGN_LEFT,  LAYER_GUI+2);
  }

  context.draw_surface_part(image, Vector(0,0), size, pos, LAYER_GUI+1);
}

int Button::event	(	SDL_Event &	event,
		int	x_offset = 0,
		int	y_offset = 0
	)

Definition at line 97 of file button.cpp.

References binding, BT_NONE, BT_SELECTED, BT_SHOW_INFO, pos, size, state, Vector::x, and Vector::y.

{
  state = BT_NONE;
  switch(event.type)
  {
    case SDL_MOUSEBUTTONDOWN:
      if(event.button.x > pos.x + x_offset && event.button.x < pos.x + x_offset + size.x &&
         event.button.y > pos.y + y_offset && event.button.y < pos.y + y_offset + size.y)
      {
        if(event.button.button == SDL_BUTTON_RIGHT)
          state = BT_SHOW_INFO;
      }
      break;
    case SDL_MOUSEBUTTONUP:
      if(event.button.x > pos.x + x_offset && event.button.x < pos.x + x_offset + size.x &&
         event.button.y > pos.y + y_offset && event.button.y < pos.y + y_offset + size.y)
      {
        if(event.button.button == SDL_BUTTON_LEFT)
          state = BT_SELECTED;
      }
      break;
    case SDL_KEYDOWN:        // key pressed
      if(event.key.keysym.sym == binding)
        state = BT_SELECTED;
      break;
    default:
      break;
  }
  return state;
}

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Friends And Related Function Documentation

friend class ButtonGroup [friend]

Definition at line 53 of file button.hpp.

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Member Data Documentation

FontPtr Button::info_font [static]

Definition at line 50 of file button.hpp.

Referenced by draw().

Vector Button::pos [private]

Definition at line 56 of file button.hpp.

Referenced by ButtonGroup::add_button(), ButtonGroup::add_pair_of_buttons(), draw(), event(), and operator=().

Vector Button::size [private]

Definition at line 57 of file button.hpp.

Referenced by ButtonGroup::add_button(), ButtonGroup::add_pair_of_buttons(), Button(), draw(), event(), and operator=().

SurfacePtr Button::image [private]

Definition at line 59 of file button.hpp.

Referenced by Button(), draw(), and operator=().

SDLKey Button::binding [private]

Definition at line 60 of file button.hpp.

Referenced by draw(), event(), and operator=().

int Button::id [private]

Definition at line 62 of file button.hpp.

Referenced by ButtonGroup::add_button(), ButtonGroup::add_pair_of_buttons(), and operator=().

int Button::state [private]

Definition at line 63 of file button.hpp.

Referenced by draw(), event(), and operator=().

std::string Button::info [private]

Definition at line 64 of file button.hpp.

Referenced by Button(), draw(), and operator=().

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

• src/gui/button.hpp
• src/gui/button.cpp

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