HtmlCanvas
A low level Canvas implementation that shows the image in an HTML Canvas element.
Attributes
- Graph
-
- Supertypes
-
trait SurfaceBackedCanvastrait LowLevelCanvastrait Extended[Settings, ExtendedSettings]trait LowLevelSubsystem[Settings]trait AutoCloseabletrait Canvastrait MutableSurfacetrait Surfaceclass Objecttrait Matchableclass AnyShow all
Members list
Value members
Constructors
Concrete methods
Clears buffers, such as the backbuffer and keyboard inputs.
Clears buffers, such as the backbuffer and keyboard inputs.
Value parameters
- buffers
-
set of Canvas.Buffers to be cleared
Attributes
Gets the current keyboard input.
Gets the current keyboard input.
Attributes
- Returns
-
current keyboard input
Gets the current pointer input.
Gets the current pointer input.
Attributes
- Returns
-
current pointer input
Flips buffers and redraws the screen.
Flips buffers and redraws the screen.
Attributes
Inherited methods
Draws a surface on top of this surface.
Draws a surface on top of this surface.
Value parameters
- blendMode
-
blend strategy to use
- ch
-
clip height of the source surface
- cw
-
clip width of the source surface
- cx
-
leftmost pixel on the source surface
- cy
-
topmost pixel on the source surface
- that
-
surface to draw
- x
-
leftmost pixel on the destination surface
- y
-
topmost pixel on the destination surface
Attributes
- Definition Classes
-
SurfaceBackedCanvas -> MutableSurface
- Inherited from:
- SurfaceBackedCanvas
The settings applied to this canvas.
The settings applied to this canvas.
Attributes
- Inherited from:
- LowLevelCanvas
Changes the settings of the subsystem.
Changes the settings of the subsystem.
Value parameters
- newSettings
-
new settings to apply
Attributes
- Inherited from:
- Extended
Destroys the subsystem.
Destroys the subsystem.
Calling any operation on this object after calling close() without calling init() has an undefined behavior.
Attributes
- Inherited from:
- Extended
Attributes
- Inherited from:
- Extended
Fill the whole surface with a certain color.
Fill the whole surface with a certain color.
Value parameters
- color
-
Color
to fill the surface with
Attributes
- Definition Classes
-
SurfaceBackedCanvas -> MutableSurface
- Inherited from:
- SurfaceBackedCanvas
Fill part of the surface with a certain color.
Fill part of the surface with a certain color.
Value parameters
- color
-
Color
to fill the surface with - h
-
region height
- w
-
region width
- x
-
leftmost pixel on the destination surface
- y
-
topmost pixel on the destination surface
Attributes
- Inherited from:
- SurfaceBackedCanvas
Gets the color from the this surface. This operation can be perfomance intensive, so it might be worthwile to either use getPixels
to fetch multiple pixels at the same time or to implement this operation on the application code.
Gets the color from the this surface. This operation can be perfomance intensive, so it might be worthwile to either use getPixels
to fetch multiple pixels at the same time or to implement this operation on the application code.
Value parameters
- x
-
pixel x position
- y
-
pixel y position
Attributes
- Returns
-
pixel color
- Inherited from:
- Surface
Gets the color from the this surface, falling back to a default color when out of bounds. Similar to getPixel(x, y).getOrElse(fallback)
, but avoids an allocation.
Gets the color from the this surface, falling back to a default color when out of bounds. Similar to getPixel(x, y).getOrElse(fallback)
, but avoids an allocation.
Value parameters
- fallback
-
fallback color
- x
-
pixel x position
- y
-
pixel y position
Attributes
- Returns
-
pixel color
- Inherited from:
- Surface
Returns the pixels from this surface. This operation can be perfomance intensive, so it might be worthwile to implement this operation on the application code.
Returns the pixels from this surface. This operation can be perfomance intensive, so it might be worthwile to implement this operation on the application code.
Attributes
- Returns
-
color matrix
- Definition Classes
-
SurfaceBackedCanvas -> Surface
- Inherited from:
- SurfaceBackedCanvas
The surface height.
The surface height.
Attributes
- Inherited from:
- Canvas
Creates the subsystem.
Creates the subsystem.
Operations can only be called after calling this.
Value parameters
- settings
-
settings used to configure the subsystem
Attributes
- Returns
-
this subsystem
- Inherited from:
- Extended
Checks if the subsystem is created or if it has been destroyed.
Checks if the subsystem is created or if it has been destroyed.
Attributes
- Inherited from:
- Extended
Put a pixel in the surface with a certain color.
Put a pixel in the surface with a certain color.
Value parameters
- color
-
Color
to apply to the pixel - x
-
pixel x position
- y
-
pixel y position
Attributes
- Inherited from:
- MutableSurface
Returns the current settings.
Returns the current settings.
Attributes
- Inherited from:
- Extended
Copies this surface into a new surface stored in RAM.
Copies this surface into a new surface stored in RAM.
Attributes
- Inherited from:
- Surface
Gets the color from the this surface in an unsafe way.
Gets the color from the this surface in an unsafe way.
This operation is unsafe: reading a out of bounds pixel has undefined behavior. You should only use this if the performance of getPixel
and getPixels
are not acceptable.
Value parameters
- x
-
pixel x position
- y
-
pixel y position
Attributes
- Returns
-
pixel color
- Inherited from:
- SurfaceBackedCanvas
Puts a pixel in the surface in an unsafe way.
Puts a pixel in the surface in an unsafe way.
This operation is unsafe: writing a out of bounds pixel has undefined behavior. You should only use this if the performance of putPixel
is not acceptable.
Value parameters
- x
-
pixel x position
- y
-
pixel y position
Attributes
- Returns
-
pixel color
- Inherited from:
- SurfaceBackedCanvas
Returns a view over this surface.
Returns a view over this surface.
Operations performed on a view are executed in a defered fashion.
Attributes
- Inherited from:
- Surface
The surface width.
The surface width.
Attributes
- Inherited from:
- Canvas
Deprecated and Inherited methods
Draws a surface on top of this surface.
Draws a surface on top of this surface.
Value parameters
- ch
-
clip height of the source surface
- cw
-
clip width of the source surface
- cx
-
leftmost pixel on the source surface
- cy
-
topmost pixel on the source surface
- mask
-
color to use as a mask (pixels with this color won't be merged)
- that
-
surface to draw
- x
-
leftmost pixel on the destination surface
- y
-
topmost pixel on the destination surface
Attributes
- Deprecated
- true
- Inherited from:
- MutableSurface
Inherited fields
Attributes
- Inherited from:
- Extended