ScrollHandle.c File Reference

#include "ScrollHandle.h"

Go to the source code of this file.

Macros
#define	_Class   _ScrollHandle

Functions
Class *	_ScrollHandle (void)
static bool	captureEvent (Control *self, const SDL_Event *event)
static View *	init (View *self)
static void	initialize (Class *clazz)
static ScrollHandle *	initWithFrame (ScrollHandle *self, const SDL_Rect *frame)

Macro Definition Documentation

_Class

#define _Class   _ScrollHandle

Definition at line 26 of file ScrollHandle.c.

Function Documentation

_ScrollHandle()

Class * _ScrollHandle

(

void

)

Definition at line 102 of file ScrollHandle.c.

                           {
  static Class *clazz;
  static Once once;
 
  do_once(&once, {
    clazz = _initialize(&(const ClassDef) {
      .name = "ScrollHandle",
      .superclass = _Control(),
      .instanceSize = sizeof(ScrollHandle),
      .interfaceOffset = offsetof(ScrollHandle, interface),
      .interfaceSize = sizeof(ScrollHandleInterface),
      .initialize = initialize,
    });
  });
 
  return clazz;
}

captureEvent()

static bool captureEvent ( Control *  self, const SDL_Event *  event  )

static

See also

Control::captureEvent(Control *, const SDL_Event *)

Definition at line 42 of file ScrollHandle.c.

                                                                {
 
  ScrollHandle *this = (ScrollHandle *) self;
 
  if (event->type == SDL_EVENT_MOUSE_BUTTON_DOWN) {
    if ($((View *) self, didReceiveEvent, event)) {
      self->state |= ControlStateHighlighted;
      return true;
    }
  } else if (event->type == SDL_EVENT_MOUSE_MOTION) {
    if (self->state & ControlStateHighlighted) {
      if (this->delegate.didDrag) {
        this->delegate.didDrag(this, event->motion.yrel);
      }
      return true;
    }
  } else if (event->type == SDL_EVENT_MOUSE_BUTTON_UP) {
    if (self->state & ControlStateHighlighted) {
      self->state &= ~ControlStateHighlighted;
      return true;
    }
  }
 
  return super(Control, self, captureEvent, event);
}

init()

static View * init ( View *  self )

static

See also

View::init(View *)

Definition at line 33 of file ScrollHandle.c.

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

initialize()

static void initialize ( Class *  clazz )

static

See also

Class::initialize(Class *)

Definition at line 89 of file ScrollHandle.c.

                                     {
 
  ((ViewInterface *) clazz->interface)->init = init;
 
  ((ControlInterface *) clazz->interface)->captureEvent = captureEvent;
 
  ((ScrollHandleInterface *) clazz->interface)->initWithFrame = initWithFrame;
}

initWithFrame()

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

static

Definition at line 74 of file ScrollHandle.c.

                                                                              {
 
  self = (ScrollHandle *) super(Control, self, initWithFrame, frame);
  if (self) {
    $((View *) self, addClassName, "handle");
  }
 
  return self;
}