Class EvasCanvas

Definition

Namespace:: ElmSharp

Assembly:: ElmSharp.dll

Low-level Evas canvas functions. Subgroups will be present more than the high-level ones, though. Most of these functions deal with low-level Evas actions like: create/destroy raw canvases, not bound to any displaying engine. tell a canvas, I got focused (in a windowing context, for example). tell a canvas, a region should not be calculated anymore in rendering. tell a canvas, to render its contents immediately. Most users will be using Evas by means of the Ecore_Evas wrapper, which deals with all the above mentioned issues automatically for them. Thus, you will be looking at this section only if you're building low-level stuff. The groups within, present you functions that deal with the canvas directly too, and not yet with its objects. They are the functions you need to use at a minimum to get a working canvas.


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[Obsolete("This has been deprecated in API12")]
public class EvasCanvas

Inheritance: object

EvasCanvas

Properties

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ImageCacheSize

Gets or sets the image cache. This function returns the image cache size of the canvas in bytes.

Declaration


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[Obsolete("This has been deprecated in API12")]
public int ImageCacheSize { get; set; }

Property Value

Type	Description
int

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Pointer

Gets the current known default pointer coordinates. This function returns the current known canvas unit coordinates of the mouse pointer.

Declaration


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[Obsolete("This has been deprecated in API12")]
public Point Pointer { get; }

Property Value

Type	Description
Point

Methods

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AddDamageRectangle(int, int, int, int)

Adds a damage rectangle.

Declaration


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[Obsolete("This has been deprecated in API12")]
public void AddDamageRectangle(int x, int y, int width, int height)

Parameters

Type	Name	Description
int	x	The rectangle's top left corner's horizontal coordinate.
int	y	The rectangle's top left corner's vertical coordinate.
int	width	The rectangle's width.
int	height	The rectangle's height.

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AddEventAction(EvasObjectCallbackType, Action)

Adds or registers an event to a given canvas event.

Declaration


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[Obsolete("This has been deprecated in API12")]
public void AddEventAction(EvasObjectCallbackType type, Action action)

Parameters

Type	Name	Description
EvasObjectCallbackType	type	The type of event that triggers.
System.Action	action	The action to be called when the event is triggered.

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AddObscuredRectangle(int, int, int, int)

Adds an "obscured region" to an Evas canvas.

Declaration


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[Obsolete("This has been deprecated in API12")]
public void AddObscuredRectangle(int x, int y, int width, int height)

Parameters

Type	Name	Description
int	x	The rectangle's top left corner's horizontal coordinate.
int	y	The rectangle's top left corner's vertical coordinate.
int	width	The rectangle's width.
int	height	The rectangle's height.

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ClearObscuredRectangle()

Removes all the "obscured regions" from an Evas canvas.

Declaration


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[Obsolete("This has been deprecated in API12")]
public void ClearObscuredRectangle()

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DeleteEventAction(EvasObjectCallbackType, Action)

Deletes an event to a given canvas event.

Declaration


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[Obsolete("This has been deprecated in API12")]
public void DeleteEventAction(EvasObjectCallbackType type, Action action)

Parameters

Type	Name	Description
EvasObjectCallbackType	type	The type of event that triggers.
System.Action	action	The action to be called when the event is triggered

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FlushImageCache()

Flushes the image cache of the canvas.

Declaration


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[Obsolete("This has been deprecated in API12")]
public void FlushImageCache()