ImageView is a class for displaying an image resource. More...

Inheritance diagram for Dali::Toolkit::ImageView:

Classes
struct	Property
	Enumeration for the instance of properties belonging to the ImageView class. More...
Public Types
enum	PropertyRange
	Enumeration for the start and end property ranges for this control. More...
Public Member Functions
	ImageView ()
	Creates an uninitialized ImageView.
	~ImageView ()
	Destructor.
	ImageView (const ImageView &imageView)
	Copy constructor.
ImageView &	operator= (const ImageView &imageView)
	Assignment operator.
void	SetImage (Image image) DALI_DEPRECATED_API
	Sets this ImageView from an Image instance.
void	SetImage (const std::string &url)
	Sets this ImageView from the given URL.
void	SetImage (const std::string &url, ImageDimensions size)
	Sets this ImageView from the given URL.
Image	GetImage () const DALI_DEPRECATED_API
	Gets the Image instance handle used by the ImageView.
Static Public Member Functions
static ImageView	New ()
	Create an initialized ImageView.
static ImageView	New (Image image) DALI_DEPRECATED_API
	Creates an initialized ImageView from an Image instance.
static ImageView	New (const std::string &url)
	Creates an initialized ImageView from an URL to an image resource.
static ImageView	New (const std::string &url, ImageDimensions size)
	Creates an initialized ImageView from a URL to an image resource.
static ImageView	DownCast (BaseHandle handle)
	Downcasts a handle to ImageView handle.

Detailed Description

ImageView is a class for displaying an image resource.

An instance of ImageView can be created using a URL or an Image instance.

Some resources can be loaded before the ImageView is staged ( already cached ), in these cases if the connection to ResouceReadySignal is done after the resource is set then signal will be missed.

To protect against this, IsResourceReady() can be checked before connecting to ResourceReadySignal, or the signal connection can be done before setting the resource.

    auto myImageView = ImageView::New( resourceUrl );
    if ( myImageView.IsResourceReady() )
    {
       // do something
    }
    else
    {
      myImageView.ResourceReadySignal.Connect( .... )
    }

OR Connect to signal before setting resource

    auto myImageView = ImageView::New();
    myImageView.ResourceReadySignal.Connect( .... )
    myImageView.SetProperty( ImageView::Property::IMAGE, resourceUrl );

Since:: 2.4, DALi version 1.0.0

Member Enumeration Documentation

enum Dali::Toolkit::ImageView::PropertyRange

Enumeration for the start and end property ranges for this control.

Since:: 2.4, DALi version 1.0.0

Enumerator:

PROPERTY_START_INDEX	Since: 2.4, DALi version 1.0.0
PROPERTY_END_INDEX	Reserve property indices. Since: 2.4, DALi version 1.0.0
ANIMATABLE_PROPERTY_START_INDEX	Since: 3.0, DALi version 1.1.18
ANIMATABLE_PROPERTY_END_INDEX	Reserve animatable property indices,. Since: 3.0, DALi version 1.1.18

Reimplemented from Dali::Toolkit::Control.

Constructor & Destructor Documentation

Dali::Toolkit::ImageView::ImageView ( )

Creates an uninitialized ImageView.

Since:: 2.4, DALi version 1.0.0

Dali::Toolkit::ImageView::~ImageView ( )

Destructor.

This is non-virtual since derived Handle types must not contain data or virtual methods.

Since:: 2.4, DALi version 1.0.0

Dali::Toolkit::ImageView::ImageView ( const ImageView & imageView )

Copy constructor.

Since:: 2.4, DALi version 1.0.0

Parameters:

[in] imageView ImageView to copy. The copied ImageView will point at the same implementation

Member Function Documentation

static ImageView Dali::Toolkit::ImageView::DownCast ( BaseHandle handle ) [static]

Downcasts a handle to ImageView handle.

If handle points to a ImageView, the downcast produces valid handle. If not, the returned handle is left uninitialized.

Since:: 2.4, DALi version 1.0.0

Parameters:

[in] handle Handle to an object

Returns:: Handle to a ImageView or an uninitialized handle

Reimplemented from Dali::Toolkit::Control.

Image Dali::Toolkit::ImageView::GetImage ( ) const

Gets the Image instance handle used by the ImageView.

Deprecated:: Deprecated since 3.0, DALi version 1.1.4

A valid handle will be returned only if this instance was created with New(Image) or SetImage(Image) was called.

Since:: 2.4, DALi version 1.0.0

Returns:: The Image instance currently used by the ImageView

static ImageView Dali::Toolkit::ImageView::New ( ) [static]

Create an initialized ImageView.

Since:: 2.4, DALi version 1.0.0

Returns:: A handle to a newly allocated Dali ImageView

Note:: ImageView will not display anything.

Reimplemented from Dali::Toolkit::Control.

static ImageView Dali::Toolkit::ImageView::New ( Image image ) [static]

Creates an initialized ImageView from an Image instance.

Deprecated:: Deprecated since 3.0, DALi version 1.2.8, use New( const std::string& ) instead.

If the handle is empty, ImageView will not display anything.

Since:: 2.4, DALi version 1.0.0

Parameters:

[in] image The Image instance to display

Returns:: A handle to a newly allocated ImageView

static ImageView Dali::Toolkit::ImageView::New ( const std::string & url ) [static]

Creates an initialized ImageView from an URL to an image resource.

If the string is empty, ImageView will not display anything.

Since:: 2.4, DALi version 1.0.0

Remarks:: http://tizen.org/privilege/internet is needed if url is a http or https address.; http://tizen.org/privilege/mediastorage is needed if url is relevant to media storage.; http://tizen.org/privilege/externalstorage is needed if url is relevant to external storage.

Parameters:

[in] url The url of the image resource to display

Returns:: A handle to a newly allocated ImageView

static ImageView Dali::Toolkit::ImageView::New	(	const std::string &	url,
		ImageDimensions	size
	)		`[static]`

Creates an initialized ImageView from a URL to an image resource.

If the string is empty, ImageView will not display anything.

Since:: 3.0, DALi version 1.1.10

Remarks:: http://tizen.org/privilege/internet is needed if url is a http or https address.; http://tizen.org/privilege/mediastorage is needed if url is relevant to media storage.; http://tizen.org/privilege/externalstorage is needed if url is relevant to external storage.

Parameters:

[in]	url	The url of the image resource to display
[in]	size	The width and height to which to fit the loaded image

Returns:: A handle to a newly allocated ImageView

Note:: A valid size is preferable for efficiency. However, do not set a size that is bigger than the actual image size, as up-scaling is not available. The content of the area not covered by the actual image is undefined and will not be cleared.

ImageView& Dali::Toolkit::ImageView::operator= ( const ImageView & imageView )

Assignment operator.

Since:: 2.4, DALi version 1.0.0

Parameters:

[in] imageView The ImageView to assign from

Returns:: The updated ImageView

void Dali::Toolkit::ImageView::SetImage ( Image image )

Sets this ImageView from an Image instance.

Deprecated:: Deprecated since 3.0, DALi version 1.2.8, use SetImage( const std::string& ) instead.

If the handle is empty, ImageView will display nothing

Since:: 2.4, DALi version 1.0.0

Parameters:

[in] image The Image instance to display.

void Dali::Toolkit::ImageView::SetImage ( const std::string & url )

Sets this ImageView from the given URL.

If the URL is empty, ImageView will not display anything.

Since:: 3.0, DALi version 1.1.4

Remarks:: http://tizen.org/privilege/internet is needed if url is a http or https address.; http://tizen.org/privilege/mediastorage is needed if url is relevant to media storage.; http://tizen.org/privilege/externalstorage is needed if url is relevant to external storage.

Parameters:

[in] url The URL to the image resource to display

void Dali::Toolkit::ImageView::SetImage	(	const std::string &	url,
		ImageDimensions	size
	)

Sets this ImageView from the given URL.

If the URL is empty, ImageView will not display anything.

Since:: 3.0, DALi version 1.1.10

Remarks:: http://tizen.org/privilege/internet is needed if url is a http or https address.; http://tizen.org/privilege/mediastorage is needed if url is relevant to media storage.; http://tizen.org/privilege/externalstorage is needed if url is relevant to external storage.

Parameters:

[in]	url	The URL to the image resource to display
[in]	size	The width and height to fit the loaded image to

Classes

Public Types

Public Member Functions

Static Public Member Functions

Detailed Description

Member Enumeration Documentation

Constructor & Destructor Documentation

Member Function Documentation