ImageView.c File Reference

#include <assert.h>
#include "ImageAtlas.h"
#include "ImageView.h"
#include "Theme.h"

Go to the source code of this file.

Macros
#define	_Class   _ImageView

Functions
Class *	_ImageView (void)
static void	awakeWithDictionary (View *self, const Dictionary *dictionary)
static void	dealloc (Object *self)
static void	didMoveToWindow (View *self, SDL_Window *window)
static View *	init (View *self)
static void	initialize (Class *clazz)
static ImageView *	initWithFrame (ImageView *self, const SDL_Rect *frame)
static ImageView *	initWithImage (ImageView *self, Image *image)
static void	render (View *self, Renderer *renderer)
static void	renderDeviceWillReset (View *self)
static void	setImage (ImageView *self, Image *image)
static void	setImageWithResource (ImageView *self, const Resource *resource)
static void	setImageWithResourceName (ImageView *self, const char *name)
static void	setImageWithSurface (ImageView *self, SDL_Surface *surface)

Variables
const EnumName	SDLGPUBlendFactorNames []

Macro Definition Documentation

_Class

#define _Class   _ImageView

Definition at line 46 of file ImageView.c.

Function Documentation

_ImageView()

Class * _ImageView

(

void

)

Definition at line 337 of file ImageView.c.

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

awakeWithDictionary()

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

static

See also

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

Definition at line 71 of file ImageView.c.

                                                                          {
 
  super(View, self, awakeWithDictionary, dictionary);
 
  ImageView *this = (ImageView *) self;
 
  const Inlet inlets[] = MakeInlets(
    MakeInlet("blend.src", InletTypeEnum, &this->blend.src, (ident) SDLGPUBlendFactorNames),
    MakeInlet("blend.dst", InletTypeEnum, &this->blend.dst, (ident) SDLGPUBlendFactorNames),
    MakeInlet("color", InletTypeColor, &this->color, NULL),
    MakeInlet("image", InletTypeCharacters, &this->imageName, NULL)
  );
 
  $(self, bind, inlets, dictionary);
}

dealloc()

static void dealloc ( Object *  self )

static

See also

Object::dealloc(Object *)

Definition at line 53 of file ImageView.c.

                                  {
 
  ImageView *this = (ImageView *) self;
 
  release(this->image);
 
  free(this->imageName);
 
  this->texture = release(this->texture);
 
  super(Object, self, dealloc);
}

didMoveToWindow()

static void didMoveToWindow ( View *  self, SDL_Window *  window  )

static

See also

View::didMoveToWindow(View *, SDL_Window *)

Definition at line 90 of file ImageView.c.

                                                            {
 
  super(View, self, didMoveToWindow, window);
 
  ImageView *this = (ImageView *) self;
 
  // leaving a window resolves nothing: there is no density to resolve against, and View::dealloc
  // moves to a NULL window, where loading an image would be worse than pointless
  if (window == NULL) {
    return;
  }
 
  if (this->imageName == NULL) {
    return;
  }
 
  char *name = this->imageName;
  this->imageName = NULL;
 
  Theme *theme = $$(Theme, theme, window);
  if (theme) {
    Image *image = $(theme, image, name, SDL_GetWindowPixelDensity(window));
    $(this, setImage, image);
  } else {
    Image *image = $$(Image, imageWithResourceName, name, SDL_GetWindowPixelDensity(window));
    $(this, setImage, image);
    release(image);
  }
 
  this->imageName = name;
}

init()

static View * init ( View *  self )

static

See also

View::init(View *)

Definition at line 125 of file ImageView.c.

                              {
  return (View *) $((ImageView *) self, initWithImage, NULL);
}

initialize()

static void initialize ( Class *  clazz )

static

see Class::initialize(Class *)

Definition at line 315 of file ImageView.c.

                                     {
 
  ((ObjectInterface *) clazz->interface)->dealloc = dealloc;
 
  ((ViewInterface *) clazz->interface)->awakeWithDictionary = awakeWithDictionary;
  ((ViewInterface *) clazz->interface)->didMoveToWindow = didMoveToWindow;
  ((ViewInterface *) clazz->interface)->init = init;
  ((ViewInterface *) clazz->interface)->render = render;
  ((ViewInterface *) clazz->interface)->renderDeviceWillReset = renderDeviceWillReset;
 
  ((ImageViewInterface *) clazz->interface)->initWithFrame = initWithFrame;
  ((ImageViewInterface *) clazz->interface)->initWithImage = initWithImage;
  ((ImageViewInterface *) clazz->interface)->setImage = setImage;
  ((ImageViewInterface *) clazz->interface)->setImageWithResource = setImageWithResource;
  ((ImageViewInterface *) clazz->interface)->setImageWithResourceName = setImageWithResourceName;
  ((ImageViewInterface *) clazz->interface)->setImageWithSurface = setImageWithSurface;
}

initWithFrame()

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

static

Definition at line 206 of file ImageView.c.

                                                                        {
 
  self = (ImageView *) super(View, self, initWithFrame, frame);
  if (self) {
    self->blend.src = SDL_GPU_BLENDFACTOR_SRC_ALPHA;
    self->blend.dst = SDL_GPU_BLENDFACTOR_ONE_MINUS_SRC_ALPHA;
 
    self->color = Colors.White;
  }
 
  return self;
}

initWithImage()

static ImageView * initWithImage ( ImageView *  self, Image *  image  )

static

Definition at line 223 of file ImageView.c.

                                                               {
 
  self = (ImageView *) $(self, initWithFrame, NULL);
  if (self) {
    $(self, setImage, image);
  }
 
  return self;
}

render()

static void render ( View *  self, Renderer *  renderer  )

static

See also

ViewInterface::render(View *, Renderer *)

Definition at line 132 of file ImageView.c.

                                                   {
 
  super(View, self, render, renderer);
 
  ImageView *this = (ImageView *) self;
 
  Texture *texture = NULL;
  SDL_Rect region, *src = NULL;
 
  if (this->image) {
    if ($((Object *) this->image, isKindOfClass, _AtlasImage())) {
 
      // The atlas owns the Texture, and repacks on compile, so neither is cached here
      AtlasImage *atlasImage = (AtlasImage *) this->image;
      if (atlasImage->atlas) {
        texture = $(atlasImage->atlas, texture, renderer->device);
        region = atlasImage->rect;
        src = &region;
      }
 
    } else {
      if (this->texture == NULL) {
        this->texture = $(renderer->device, createTextureFromSurface,
          this->image->surface, SDL_GPU_TEXTUREUSAGE_SAMPLER, false);
        assert(this->texture);
      }
      texture = this->texture;
    }
  } else {
    texture = this->texture;
  }
 
  if (texture) {
 
    // TODO: Actually use self->blend
 
    const SDL_Rect frame = $(self, renderFrame);
 
    SDL_FRect frect;
    SDL_RectToFRect(&frame, &frect);
 
    if (self->borderRadius > 0) {
      $(renderer, drawRoundedTextureRegion, texture, src, &frect, self->borderRadius, &this->color);
    } else {
      $(renderer, drawTextureRegion, texture, src, &frect, &this->color);
    }
  }
}

renderDeviceWillReset()

static void renderDeviceWillReset ( View *  self )

static

See also

View::renderDeviceWillReset(View *)

Definition at line 184 of file ImageView.c.

                                              {
 
  ImageView *this = (ImageView *) self;
 
  this->texture = release(this->texture);
 
  if (this->image && $((Object *) this->image, isKindOfClass, _AtlasImage())) {
    ImageAtlas *atlas = ((AtlasImage *) this->image)->atlas;
    if (atlas) {
      $(atlas, renderDeviceWillReset);
    }
  }
 
  super(View, self, renderDeviceWillReset);
}

setImage()

static void setImage ( ImageView *  self, Image *  image  )

static

Definition at line 237 of file ImageView.c.

                                                    {
 
  free(self->imageName);
  self->imageName = NULL;
 
  release(self->image);
 
  if (image) {
    self->image = retain(image);
 
    const SDL_Size size = $((View *) self, size);
    const SDL_Size imageSize = $(image, size);
 
    if (size.w == 0 && size.h == 0) {
      $((View *) self, resize, &imageSize);
    }
  } else {
    self->image = NULL;
  }
 
  self->texture = release(self->texture);
}

setImageWithResource()

static void setImageWithResource ( ImageView *  self, const Resource *  resource  )

static

Definition at line 264 of file ImageView.c.

                                                                            {
 
  Image *image = $$(Image, imageWithResource, resource, 1.f);
 
  $(self, setImage, image);
 
  release(image);
}

setImageWithResourceName()

static void setImageWithResourceName ( ImageView *  self, const char *  name  )

static

Definition at line 277 of file ImageView.c.

                                                                        {
 
  $(self, setImage, NULL);
 
  // an empty name is no image, not a request to ask the resource system for ""
  if (name && *name) {
    self->imageName = strdup(name);
 
    View *this = (View *) self;
    if (this->window) {
      $(this, didMoveToWindow, this->window);
    }
  }
}

setImageWithSurface()

static void setImageWithSurface ( ImageView *  self, SDL_Surface *  surface  )

static

Definition at line 296 of file ImageView.c.

                                                                       {
 
  $(self, setImage, NULL);
 
  if (surface) {
    Image *image = $(alloc(Image), initWithSurface, surface);
    assert(image);
 
    $(self, setImage, image);
 
    release(image);
  }
}

Variable Documentation

SDLGPUBlendFactorNames

const EnumName SDLGPUBlendFactorNames[]

Initial value:

= MakeEnumNames(
  MakeEnumName(SDL_GPU_BLENDFACTOR_ZERO),
  MakeEnumName(SDL_GPU_BLENDFACTOR_ONE),
  MakeEnumName(SDL_GPU_BLENDFACTOR_SRC_COLOR),
  MakeEnumName(SDL_GPU_BLENDFACTOR_ONE_MINUS_SRC_COLOR),
  MakeEnumName(SDL_GPU_BLENDFACTOR_DST_COLOR),
  MakeEnumName(SDL_GPU_BLENDFACTOR_ONE_MINUS_DST_COLOR),
  MakeEnumName(SDL_GPU_BLENDFACTOR_SRC_ALPHA),
  MakeEnumName(SDL_GPU_BLENDFACTOR_ONE_MINUS_SRC_ALPHA),
  MakeEnumName(SDL_GPU_BLENDFACTOR_DST_ALPHA),
  MakeEnumName(SDL_GPU_BLENDFACTOR_ONE_MINUS_DST_ALPHA),
  MakeEnumName(SDL_GPU_BLENDFACTOR_CONSTANT_COLOR),
  MakeEnumName(SDL_GPU_BLENDFACTOR_ONE_MINUS_CONSTANT_COLOR),
  MakeEnumName(SDL_GPU_BLENDFACTOR_SRC_ALPHA_SATURATE)
)

Definition at line 30 of file ImageView.c.