Panel.c File Reference

#include <assert.h>
#include "Panel.h"
#include "../Assets/resize.png.h"

Go to the source code of this file.

Macros
#define	_Class   _Panel

Functions
Class *	_Panel (void)
static bool	acceptsKeyResponder (const View *self)
static void	applyStyle (View *self, const Style *style)
static void	awakeWithDictionary (View *self, const Dictionary *dictionary)
static bool	captureEvent (Control *self, const SDL_Event *event)
static SDL_Size	contentSize (const Panel *self)
static void	dealloc (Object *self)
static void	destroy (Class *clazz)
static View *	init (View *self)
static void	initialize (Class *clazz)
static Panel *	initWithFrame (Panel *self, const SDL_Rect *frame)
static void	layoutSubviews (View *self)

Variables
static Image *	_resize

Macro Definition Documentation

_Class

#define _Class   _Panel

Definition at line 32 of file Panel.c.

Function Documentation

_Panel()

Class * _Panel

(

void

)

Definition at line 301 of file Panel.c.

                    {
  static Class *clazz;
  static Once once;
 
  do_once(&once, {
    clazz = _initialize(&(const ClassDef) {
      .name = "Panel",
      .superclass = _Control(),
      .instanceSize = sizeof(Panel),
      .interfaceSize = sizeof(PanelInterface),
      .initialize = initialize,
      .destroy = destroy,
    });
  });
 
  return clazz;
}

acceptsKeyResponder()

static bool acceptsKeyResponder ( const View *  self )

static

See also

View::acceptsKeyResponder(View *)

Definition at line 56 of file Panel.c.

                                                  {
  return false;
}

applyStyle()

static void applyStyle ( View *  self, const Style *  style  )

static

See also

View::applyStyle(View *, const Style *)

Definition at line 63 of file Panel.c.

                                                       {
 
  super(View, self, applyStyle, style);
 
  Panel *this = (Panel *) self;
 
  const Inlet inlets[] = MakeInlets(
    MakeInlet("draggable", InletTypeBool, &this->isDraggable, NULL),
    MakeInlet("resizable", InletTypeBool, &this->isResizable, NULL)
  );
 
  $(self, bind, inlets, (Dictionary *) style->attributes);
}

awakeWithDictionary()

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

static

See also

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

Definition at line 80 of file Panel.c.

                                                                          {
 
  super(View, self, awakeWithDictionary, dictionary);
 
  Panel *this = (Panel *) self;
 
  const Inlet inlets[] = MakeInlets(
    MakeInlet("accessoryView", InletTypeView, &this->accessoryView, NULL),
    MakeInlet("contentView", InletTypeView, &this->contentView, NULL),
    MakeInlet("stackView", InletTypeView, &this->stackView, NULL)
  );
 
  $(self, bind, inlets, dictionary);
}

captureEvent()

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

static

See also

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

Definition at line 131 of file Panel.c.

                                                                {
 
  Panel *this = (Panel *) self;
 
  if (event->type == SDL_EVENT_MOUSE_BUTTON_DOWN) {
    if ($((View *) this->resizeHandle, didReceiveEvent, event)) {
      if (this->isResizable && !this->isDragging) {
        this->isResizing = true;
      }
      return true;
    }
  }
 
  if (event->type == SDL_EVENT_MOUSE_MOTION) {
 
    if (event->motion.state & SDL_BUTTON_LEFT) {
      self->state |= ControlStateHighlighted;
 
      if (this->isResizing || this->isDraggable) {
 
        // Motion is reported in points, which are fractional on high-density
        // displays. Carry the sub-point remainder between events so the integer
        // deltas applied to the frame sum exactly to the cursor's movement,
        // rather than truncating away a fraction each event and drifting behind.
        this->gestureResidual.x += event->motion.xrel;
        this->gestureResidual.y += event->motion.yrel;
 
        const int dx = (int) this->gestureResidual.x;
        const int dy = (int) this->gestureResidual.y;
 
        this->gestureResidual.x -= dx;
        this->gestureResidual.y -= dy;
 
        if (this->isResizing) {
          SDL_Size size = $((View *) self, size);
 
          size.w += dx;
          size.h += dy;
 
          $((View *) self, resize, &size);
 
        } else {
          this->isDragging = true;
 
          self->view.frame.x += dx;
          self->view.frame.y += dy;
 
          // Direct frame mutation outside of layout: refresh the render frame caches so
          // hit-testing for the remainder of this event batch sees the moved Panel.
          MVC_InvalidateRenderFrames();
        }
 
        return true;
      }
    } else {
      self->state &= ~ControlStateHighlighted;
      this->isResizing = this->isDragging = false;
      this->gestureResidual.x = this->gestureResidual.y = 0.f;
    }
  }
 
  return super(Control, self, captureEvent, event);
}

contentSize()

static SDL_Size contentSize ( const Panel *  self )

static

Definition at line 201 of file Panel.c.

                                               {
 
  const View *accessoryView = (View *) self->accessoryView;
  const View *contentView = (View *) self->contentView;
 
  SDL_Size size = $(contentView, sizeThatContains);
 
  if (accessoryView->visibility != ViewVisibilityHidden) {
    const SDL_Size accessorySize = $(accessoryView, sizeThatContains);
    size.h -= accessorySize.h + self->stackView->spacing;
  }
 
  return size;
}

dealloc()

static void dealloc ( Object *  self )

static

See also

Object::dealloc(Object *)

Definition at line 39 of file Panel.c.

                                  {
 
  Panel *this = (Panel *) self;
 
  release(this->accessoryView);
  release(this->contentView);
  release(this->resizeHandle);
  release(this->stackView);
 
  super(Object, self, dealloc);
}

destroy()

static void destroy ( Class *  clazz )

static

See also

Class::destroy(Class *)

Definition at line 293 of file Panel.c.

                                  {
  release(_resize);
}

init()

static View * init ( View *  self )

static

See also

View::init(View *)

Definition at line 98 of file Panel.c.

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

initialize()

static void initialize ( Class *  clazz )

static

See also

Class::initialize(Class *)

Definition at line 272 of file Panel.c.

                                     {
 
  ((ObjectInterface *) clazz->interface)->dealloc = dealloc;
 
  ((ViewInterface *) clazz->interface)->acceptsKeyResponder = acceptsKeyResponder;
  ((ViewInterface *) clazz->interface)->applyStyle = applyStyle;
  ((ViewInterface *) clazz->interface)->awakeWithDictionary = awakeWithDictionary;
  ((ViewInterface *) clazz->interface)->init = init;
  ((ViewInterface *) clazz->interface)->layoutSubviews = layoutSubviews;
 
  ((ControlInterface *) clazz->interface)->captureEvent = captureEvent;
 
  ((PanelInterface *) clazz->interface)->contentSize = contentSize;
  ((PanelInterface *) clazz->interface)->initWithFrame = initWithFrame;
 
  _resize = $(alloc(Image), initWithBytes, resize_png, resize_png_len - 1, 1.f);
}

initWithFrame()

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

static

Definition at line 220 of file Panel.c.

                                                                {
 
  self = (Panel *) super(Control, self, initWithFrame, frame);
  if (self) {
    View *this = (View *) self;
 
    self->isDraggable = true;
    self->isResizable = true;
 
    self->stackView = $(alloc(StackView), initWithFrame, NULL);
    assert(self->stackView);
 
    $(this, addSubview, (View *) self->stackView);
 
    self->contentView = $(alloc(StackView), initWithFrame, NULL);
    assert(self->contentView);
 
    $((View *) self->contentView, addClassName, "contentView");
    $((View *) self->contentView, addClassName, "container");
 
    self->contentView->view.autoresizingMask |= ViewAutoresizingWidth;
 
    $((View *) self->stackView, addSubview, (View *) self->contentView);
 
    self->accessoryView = $(alloc(StackView), initWithFrame, NULL);
    assert(self->accessoryView);
 
    $((View *) self->accessoryView, addClassName, "accessoryView");
    $((View *) self->accessoryView, addClassName, "container");
 
 
    $((View *) self->stackView, addSubview, (View *) self->accessoryView);
 
    self->resizeHandle = $(alloc(ImageView), initWithImage, _resize);
    assert(self->resizeHandle);
 
    $((View *) self->resizeHandle, addClassName, "resizeHandle");
 
    self->resizeHandle->view.frame.w = DEFAULT_PANEL_RESIZE_HANDLE_SIZE;
    self->resizeHandle->view.frame.h = DEFAULT_PANEL_RESIZE_HANDLE_SIZE;
 
    $((View *) self, addSubview, (View *) self->resizeHandle);
  }
 
  return self;
}

layoutSubviews()

static void layoutSubviews ( View *  self )

static

See also

View::layoutSubviews(View *)

Definition at line 105 of file Panel.c.

                                       {
 
  const Panel *this = (Panel *) self;
 
  const SDL_Size size = $(this, contentSize);
 
  View *contentView = (View *) this->contentView;
 
  $(contentView, layoutWithSize, &size);
 
  super(View, self, layoutSubviews);
 
  View *resizeHandle = (View *) this->resizeHandle;
 
  resizeHandle->frame.x = self->frame.w - resizeHandle->frame.w;
  resizeHandle->frame.y = self->frame.h - resizeHandle->frame.h;
 
  $(resizeHandle, setVisibility,
    this->isResizable ? ViewVisibilityVisible : ViewVisibilityHidden);
}

Variable Documentation

_resize

Image* _resize

static

Definition at line 30 of file Panel.c.