Graph_lib::Image Class Reference

#include <Shapes.h>

Inheritance diagram for Graph_lib::Image:

Collaboration diagram for Graph_lib::Image:

Public Member Functions
	Image (Point _loc, const std::string &s, Suffix::Encoding e=Suffix::none)
	~Image ()
Color	color () const
void	draw () const
void	draw_lines () const override
Color	fill_color () const
Line_style	get_style () const
void	move (int dx, int dy) override
size_t	number_of_points () const
Point	point (int i) const
void	set_color (Color _color)
void	set_fill_color (Color _color)
void	set_mask (Point _loc, pix_amount _width, pix_amount _height)
void	set_style (Line_style sty)

Protected Member Functions
void	add (Point p)
void	set_point (int i, Point p)

Private Attributes
Color	c {static_cast<Color>(fl_color())}
pix_amount	cx
pix_amount	cy
Color	f_c {Color::invisible}
pix_amount	height
Fl_Image *	img_ptr
Line_style	ls {0}
std::vector< Point >	points
Text	text
pix_amount	width

Constructor & Destructor Documentation

Image()

Graph_lib::Image::Image	(	Point	_loc,
		const std::string &	s,
		Suffix::Encoding	e = Suffix::none )

    : width{0}, height{0}, text{_loc, ""} {
  add(_loc);
 
  if (!can_open(s)) {
    text.set_label("cannot open \"" + s + '\"');
    img_ptr = new Bad_image{30, 20};  // the "error image"
    return;
  }
 
  if (e == Suffix::none) e = get_encoding(s);
 
  switch (e) {
    case Suffix::png:
      img_ptr = new Fl_PNG_Image{s.c_str()};
      break;
    case Suffix::jpg:
      img_ptr = new Fl_JPEG_Image{s.c_str()};
      break;
    case Suffix::gif:
      img_ptr = new Fl_GIF_Image{s.c_str()};
      break;
    default:  // Unsupported image encoding
      text.set_label("unsupported file type \"" + s + '\"');
      img_ptr = new Bad_image{30, 20};  // the "error image"
  }
}

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~Image()

Graph_lib::Image::~Image ( )

inline

{ delete img_ptr; }

Member Function Documentation

add()

void Graph_lib::Shape::add ( Point p )

inlineprotectedinherited

{ points.push_back(p); }

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color()

Color Graph_lib::Shape::color ( ) const

inlineinherited

{ return c; }

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draw()

void Graph_lib::Shape::draw ( ) const

inherited

                       {
  Fl_Color prev_color = fl_color();  // не существует хорошего портативного
                                     // способа получения текущего стиля
  fl_color(c.as_uint());
  fl_line_style(ls.style(), ls.w());
  draw_lines();
  fl_color(prev_color);  // reset color (к предыдущему) and style (к дефолтному)
  fl_line_style(0);
}

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draw_lines()

void Graph_lib::Image::draw_lines ( ) const

overridevirtual

Reimplemented from Graph_lib::Shape.

                             {
  if (text.label() != "") text.draw_lines();
 
  if (width && height)
    img_ptr->Fl_Image::draw(point(0).x, point(0).y, width, height, cx, cy);
  else
    img_ptr->Fl_Image::draw(point(0).x, point(0).y);
}

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fill_color()

Color Graph_lib::Shape::fill_color ( ) const

inlineinherited

{ return f_c; }

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get_style()

Line_style Graph_lib::Shape::get_style ( ) const

inlineinherited

{ return ls; }

move()

void Graph_lib::Image::move ( int dx, int dy )

overridevirtual

Reimplemented from Graph_lib::Shape.

                               {
  Shape::move(dx, dy);
  img_ptr->Fl_Image::draw(point(0).x, point(0).y);
}

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number_of_points()

size_t Graph_lib::Shape::number_of_points ( ) const

inlineinherited

{ return points.size(); }

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point()

Point Graph_lib::Shape::point ( int i ) const

inlineinherited

{ return points[i]; }

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set_color()

void Graph_lib::Shape::set_color ( Color _color )

inlineinherited

{ c = _color; }

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set_fill_color()

void Graph_lib::Shape::set_fill_color ( Color _color )

inlineinherited

{ f_c = _color; }

set_mask()

void Graph_lib::Image::set_mask ( Point _loc, pix_amount _width, pix_amount _height )

inline

                                                                          {
    width = _width;
    height = _height;
    cx = _loc.x;
    cy = _loc.y;
  }

set_point()

void Graph_lib::Shape::set_point ( int i, Point p )

inlineprotectedinherited

{ points[i] = p; }

set_style()

void Graph_lib::Shape::set_style ( Line_style sty )

inlineinherited

{ ls = sty; }

Member Data Documentation

c

Color Graph_lib::Shape::c {static_cast<Color>(fl_color())}

privateinherited

{static_cast<Color>(fl_color())};

cx

pix_amount Graph_lib::Image::cx

private

cy

pix_amount Graph_lib::Image::cy

private

f_c

Color Graph_lib::Shape::f_c {Color::invisible}

privateinherited

{Color::invisible};

height

pix_amount Graph_lib::Image::height

private

img_ptr

Fl_Image* Graph_lib::Image::img_ptr

private

ls

Line_style Graph_lib::Shape::ls {0}

privateinherited

{0};

points

std::vector<Point> Graph_lib::Shape::points

privateinherited

text

Text Graph_lib::Image::text

private

width

pix_amount Graph_lib::Image::width

private

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

• frontend/Graph_lib/Shapes.h
• frontend/Graph_lib/Shapes.cpp