ProgressBar.c File Reference

#include <assert.h>
#include <math.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include "ProgressBar.h"

Go to the source code of this file.

Macros
#define	_Class   _ProgressBar

Functions
Class *	_ProgressBar (void)
static void	awakeWithDictionary (View *self, const Dictionary *dictionary)
static void	dealloc (Object *self)
static void	formatLabel (ProgressBar *self)
static View *	init (View *self)
static void	initialize (Class *clazz)
static ProgressBar *	initWithFrame (ProgressBar *self, const SDL_Rect *frame)
static double	progress (const ProgressBar *self)
static void	setLabelFormat (ProgressBar *self, const char *labelFormat)
static void	setValue (ProgressBar *self, double value)

Macro Definition Documentation

_Class

#define _Class   _ProgressBar

Definition at line 32 of file ProgressBar.c.

Function Documentation

_ProgressBar()

Class * _ProgressBar

(

void

)

Definition at line 214 of file ProgressBar.c.

                          {
  static Class *clazz;
  static Once once;
 
  do_once(&once, {
    clazz = _initialize(&(const ClassDef) {
      .name = "ProgressBar",
      .superclass = _View(),
      .instanceSize = sizeof(ProgressBar),
      .interfaceSize = sizeof(ProgressBarInterface),
      .initialize = initialize,
    });
  });
 
  return clazz;
}

awakeWithDictionary()

static void awakeWithDictionary ( View *  self, const Dictionary *  dictionary  )

static

See also

View::awakeWithDictionary(View *, const Dictionary *)

Definition at line 59 of file ProgressBar.c.

                                                                          {
 
  super(View, self, awakeWithDictionary, dictionary);
 
  ProgressBar *this = (ProgressBar *) self;
 
  double value = this->value;
 
  const Inlet inlets[] = MakeInlets(
    MakeInlet("background", InletTypeView, &this->background, NULL),
    MakeInlet("foreground", InletTypeView, &this->foreground, NULL),
    MakeInlet("label", InletTypeView, &this->label, NULL),
    MakeInlet("labelFormat", InletTypeCharacters, &this->labelFormat, NULL),
    MakeInlet("min", InletTypeDouble, &this->min, NULL),
    MakeInlet("max", InletTypeDouble, &this->max, NULL),
    MakeInlet("value", InletTypeDouble, &value, NULL)
  );
 
  $(self, bind, inlets, dictionary);
 
  $(this, setValue, value);
}

dealloc()

static void dealloc ( Object *  self )

static

See also

Object::dealloc(Object *)

Definition at line 39 of file ProgressBar.c.

                                  {
 
  ProgressBar *this = (ProgressBar *) self;
 
  memset(&this->delegate, 0, sizeof(this->delegate));
 
  release(this->background);
  release(this->foreground);
  release(this->label);
 
  free(this->labelFormat);
 
  super(Object, self, dealloc);
}

formatLabel()

static void formatLabel ( ProgressBar *  self )

static

Definition at line 95 of file ProgressBar.c.

                                           {
 
  char text[128];
  snprintf(text, sizeof(text), self->labelFormat, self->value);
 
  $(self->label, setText, text);
}

init()

static View * init ( View *  self )

static

See also

View::init(View *)

Definition at line 85 of file ProgressBar.c.

                              {
  return (View *) $((ProgressBar *) self, initWithFrame, NULL);
}

initialize()

static void initialize ( Class *  clazz )

static

See also

Class::initialize(Class *)

Definition at line 196 of file ProgressBar.c.

                                     {
 
  ((ObjectInterface *) clazz->interface)->dealloc = dealloc;
 
  ((ViewInterface *) clazz->interface)->awakeWithDictionary = awakeWithDictionary;
  ((ViewInterface *) clazz->interface)->init = init;
 
  ((ProgressBarInterface *) clazz->interface)->formatLabel = formatLabel;
  ((ProgressBarInterface *) clazz->interface)->initWithFrame = initWithFrame;
  ((ProgressBarInterface *) clazz->interface)->progress = progress;
  ((ProgressBarInterface *) clazz->interface)->setLabelFormat = setLabelFormat;
  ((ProgressBarInterface *) clazz->interface)->setValue = setValue;
}

initWithFrame()

static ProgressBar * initWithFrame ( ProgressBar *  self, const SDL_Rect *  frame  )

static

Definition at line 107 of file ProgressBar.c.

                                                                            {
 
  self = (ProgressBar *) super(View, self, initWithFrame, frame);
  if (self) {
 
    self->background = $(alloc(ImageView), initWithFrame, NULL);
    assert(self->background);
 
    $((View *) self->background, addClassName, "background");
    $((View *) self, addSubview, (View *) self->background);
 
    self->foreground = $(alloc(ImageView), initWithFrame, NULL);
    assert(self->foreground);
 
    $((View *) self->foreground, addClassName, "foreground");
    $((View *) self, addSubview, (View *) self->foreground);
 
    self->label = $(alloc(Text), initWithText, NULL, NULL);
    assert(self->label);
 
    $((View *) self, addSubview, (View *) self->label);
 
    $(self, setLabelFormat, "%0.0lf%%");
 
    self->value = -1.0;
    self->max = 100.0;
  }
 
  return self;
}

progress()

static double progress ( const ProgressBar *  self )

static

Definition at line 142 of file ProgressBar.c.

                                                {
 
  if (self->max <= self->min) {
    return 0.0;
  }
 
  return 100.0 * (self->value - self->min) / (self->max - self->min);
}

setLabelFormat()

static void setLabelFormat ( ProgressBar *  self, const char *  labelFormat  )

static

Definition at line 155 of file ProgressBar.c.

                                                                       {
 
  if (self->labelFormat) {
    free(self->labelFormat);
  }
 
  self->labelFormat = strdup(labelFormat);
  $(self, formatLabel);
}

setValue()

static void setValue ( ProgressBar *  self, double  value  )

static

Definition at line 169 of file ProgressBar.c.

                                                      {
 
  value = clamp(value, self->min, self->max);
 
  const double delta = fabs(self->value - value);
  if (delta > __DBL_EPSILON__) {
    self->value = value;
 
    const SDL_Rect bounds = $((View *) self, bounds);
    const double frac = $(self, progress) / 100.0;
 
    self->foreground->view.frame.w = bounds.w * frac;
    $((View *) self, setNeedsLayout);
 
    $(self, formatLabel);
 
    if (self->delegate.didSetValue) {
      self->delegate.didSetValue(self, self->value);
    }
  }
}