A simple 9-slice bitmap renderer.
Enables rendering of the Tile as a stretchable surface with unscaled corners, stretched center and either stretched or tiled borders.
Set ScaleGrid.width and ScaleGrid.height to resize the ScaleGrid.
Constructor
new(tile:Null<Tile>, borderL:Int, borderT:Int, ?borderR:Int, ?borderB:Int, ?parent:Object)
Create a new ScaleGrid with specified parameters.
Parameters:
tile | The source tile which will be sliced. |
|---|---|
borderW | The width of the left and right borders in pixels. |
borderH | The height of the top and bottom borders in pixels. |
parent | An optional parent |
Variables
@:value(1.0)borderScale:Float = 1.0
Scale factor applied to borders only. If combined with ignoreScale, becomes an absolute scale independent from the scene scale.
height:Float
The height of the bitmap. Setting to values less than borderTop + borderBottom leads to undefined results.
ignoreScale:Bool
When enabled, the borders will ignore the final scale of the h2d.ScaleGrid to be rendered pixel perfect.
This does not change the values of borderLeft, borderRight, borderTop or borderBottom.
Center tile is always stretched.
tileBorders:Bool
When enabled, borders will be repeated along the edges instead of stretching to match the desired dimensions.
tileCenter:Bool
When enabled, center will be repeated along the edges instead of stretching to match the desired dimensions.
width:Float
The width of the bitmap. Setting to values less than borderLeft + borderRight leads to undefined results.
Inherited Variables
Defined by TileGroup
Defined by Drawable
color:Vector4
The color multiplier for the drawable. Can be used to adjust individually each of the four channels R,G,B,A (default [1,1,1,1])
colorAdd:Null<Vector>
Setting colorAdd will add the amount of color of each channel R,G,B,A to the object pixels.
colorKey:Null<Int>
Setting a colorKey color value will discard all pixels that have this exact color in the tile.
colorMatrix:Null<Matrix>
Setting a colorMatrix will apply a color transformation. See also adjustColor.
smooth:Null<Bool>
By enabling smoothing, scaling the object up or down will use hardware bilinear filtering resulting in a less crisp aspect.
By default smooth is null in which case Scene.defaultSmooth value is used.
tileWrap:Bool
Enables texture uv wrap for this Drawable, causing tiles with uv exceeding the texture size to repeat instead of clamping on edges.
Note that tileWrap does not use the Tile region as a wrapping area but instead uses underlying h3d.mat.Texture size.
This is due to implementation specifics, as it just sets the Texture.wrap to either Repeat or Clamp.
Because of that, proper Tile tiling can be expected only when the tile covers an entire Texture area.
Defined by Object
private@:dox(show)allocated:Bool
A flag that indicates whether the object was allocated or not.
When adding children to allocated objects, onAdd is being called immediately,
otherwise it's delayed until the whole tree is added to a currently active Scene.
@:value(Alpha)blendMode:BlendMode = Alpha
The blending mode of the object.
If there is no Object.filter active, only applies to the current object (not inherited by children).
Otherwise tells how the filter is blended with background.
filter:Filter
The post process filter for this object.
When set, Object.alpha value affects both filter and object transparency (use Drawable.color.a to set transparency only for the object).
name:String
The name of the object. Can be used to retrieve an object within a tree by using Object.getObjectByName.
private@:dox(show)parentContainer:Object
The parent container of this object.
See Object.contentChanged for more details.
private@:dox(show)posChanged:Bool
A flag that indicates that the object transform was modified and absolute position recalculation is required.
Automatically cleared on Object.sync and can be manually synced with the Object.syncPos.
Inherited Methods
Defined by TileGroup
inlineadd(x:Float, y:Float, t:Tile):Void
Adds a Tile at specified position. Tile is tinted by the current default color.
Parameters:
x | X position of the tile relative to the TileGroup. |
|---|---|
y | Y position of the tile relative to the TileGroup. |
t | The Tile to draw. |
inlineaddAlpha(x:Float, y:Float, a:Float, t:Tile):Void
Adds a Tile at specified position. Tile is tinted by the current default color RGB value and provided alpha.
Parameters:
x | X position of the tile relative to the TileGroup. |
|---|---|
y | Y position of the tile relative to the TileGroup. |
a | Alpha of the drawn Tile. |
t | The Tile to draw. |
inlineaddColor(x:Float, y:Float, r:Float, g:Float, b:Float, a:Float, t:Tile):Void
Adds a tinted Tile at specified position.
Parameters:
x | X position of the tile relative to the TileGroup. |
|---|---|
y | Y position of the tile relative to the TileGroup. |
r | Red tint value (0...1 range). |
g | Green tint value (0...1 range). |
b | Blue tint value (0...1 range). |
a | Alpha of the drawn Tile. |
t | The Tile to draw. |
inlineaddTransform(x:Float, y:Float, sx:Float, sy:Float, r:Float, t:Tile):Void
Adds a Tile at specified position with provided transform. Tile is tinted by the current default color.
Parameters:
x | X position of the tile relative to the TileGroup. |
|---|---|
y | Y position of the tile relative to the TileGroup. |
sx | X-axis scaling factor of the Tile. |
sy | Y-axis scaling factor of the Tile. |
r | Rotation (in radians) of the Tile. |
t | The Tile to draw. |
private@:allow(h2d)@:dox(show)drawWith(ctx:RenderContext, obj:Drawable):Void
Render the TileGroup contents using the referenced Drawable position, shaders and other parameters.
An advanced rendering approach, that allows to render TileGroup contents relative to another object
and used primarily by Text and HtmlText.
Parameters:
ctx | The render context with which to render the TileGroup. |
|---|---|
obj | The Drawable which will be used as a source of the rendering parameters. |
invalidate():Void
When new data is added, it's not automatically flushed to the GPU memory if it was already allocated
(when TileGroup is either rendered or received Object.sync call),
in which case call invalidate() to force a refresh of the GPU data.
@:value({ alpha : 1.0 })setDefaultColor(rgb:Int, alpha:Float = 1.0):Void
Sets the default tinting color when adding new Tiles.
Defined by Drawable
addShader<T>(s:T):T
Add a shader to the drawable shaders.
Keep in mind, that as stated before, drawable children do not inherit Drawable properties, which includes shaders.
adjustColor(?col:Null<ColorAdjust>):Void
Set the Drawable.colorMatrix value by specifying which effects to apply.
Calling adjustColor() without arguments will reset the colorMatrix to null.
getShader<T>(stype:Class<T>):T
Returns the first shader of the given shader class among the drawable shaders.
Parameters:
stype | The class of the shader to look up. |
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removeShader(s:Shader):Bool
Remove a shader from the drawable shaders, returns true if found or false if it was not part of our shaders.
Defined by Object
private@:dox(show)addBounds(relativeTo:Object, out:Bounds, dx:Float, dy:Float, width:Float, height:Float):Void
Adds specified area in local coordinate space to the bounds. Expected to be used within Object.getBoundsRec.
Parameters:
relativeTo | An object relative to which the Object bounds coordinates should be. If not set, coordinates are in absolute coordinate space. |
|---|---|
out | An output Bounds instance. |
dx | The top-left X offset of the added bounds rectangle. |
dy | The top-left Y offset of the added bounds rectangle. |
width | The width of the added bounds rectangle. |
height | The height of the added bounds rectangle. |
addChildAt(s:Object, pos:Int):Void
Insert a child object at the specified position of the children list.
private@:dox(show)calcAbsPos():Void
private@:value({ scaleY : 1., scaleX : 1. })@:dox(show)clipBounds(ctx:RenderContext, bounds:Bounds, scaleX:Float = 1., scaleY:Float = 1.):Void
h2d.Scene note: clipBounds will always output bounds equivalent to entire window.
This is done in order for scene to never clip out cameras as they may render virtually any area of the Scene.
private@:dox(show)constraintSize(maxWidth:Float, maxHeight:Float):Void
For example, Text constraints it's maximum width, causing word-wrap to occur within constrained area.
See also:
private@:dox(show)contentChanged(s:Object):Void
private@:dox(show)draw(ctx:RenderContext):Void
Override this method in order to add custom graphics rendering to your Object.
draw is invoked before rendering of the object children.
drawToTextures(texs:Array<Texture>, outputs:Array<Output>):Void
Draw the object and all its children into the given Textures.
private@:dox(show)emitTile(ctx:RenderContext, tile:Tile):Void
Draws single Tile instance with this Object transform.
find<T>(f:Object ‑> Null<T>):Null<T>
Find a single object in the tree by calling f on each and returning the first not-null value returned, or null if not found.
findAll<T>(f:Object ‑> Null<T>, ?arr:Array<T>):Array<T>
Find several objects in the tree by calling f on each and returning all the not-null values returned.
Parameters:
arr | An optional array instance to fill results with. Allocates a new array if not set. |
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inlinegetAbsPos():Matrix
Returns the updated absolute position matrix. See Object.getMatrix for current matrix values.
getBounds(?relativeTo:Object, ?out:Bounds):Bounds
Return the bounds of the object for its whole content, recursively.
Parameters:
relativeTo | An optional object relative to coordinates of which bounds are returned. Returns bounds in the absolute coordinates if not set. |
|---|---|
out | An optional bounds instance to fill. Allocates new Bounds instance and returns it if not set. |
private@:dox(show)getBoundsRec(relativeTo:Object, out:Bounds, forSize:Bool):Void
Override this method in order to expand the reported bounds of an object. Object.addBounds can be used to add bounds with respect to relativeTo.
Do not remove the super call.
Parameters:
relativeTo | An object relative to which the Object bounds coordinates should be. |
|---|---|
out | An output Bounds instance. |
forSize | Whether it's being called for |
getChildAt(n:Int):Object
Return the nth element among the immediate children list of this object, or null if there is no Object at this position.
getChildIndex(o:Object):Int
Return the index of the object o within the immediate children list of this object, or -1 if it is not part of the children list.
private@:dox(show)getMatrix(m:Matrix):Void
Populates m with current absolute object transform values. See Object.getAbsPos for up-to-date values.
getObjectByName(name:String):Object
Search for an object recursively by name, return null if not found.
getScene():Scene
Returns an h2d.Scene down the hierarchy tree or null if object is not added to Scene.
finalgetSize(?out:Bounds):Bounds
Similar to getBounds(parent), but instead of the full content, it will return
the size based on the alignment of the object. For instance for a text, Object.getBounds will return
the full glyphs size whereas getSize will ignore the pixels under the baseline.
Parameters:
out | An optional bounds instance to fill. Allocates new Bounds instance and returns it if not set. |
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globalToLocal(pt:Point):Point
Convert an absolute screen position into a local position relative to the object origin, applying all the inherited transforms.
Parameters:
pt | A position to convert and return. Modifies the Point instance as is. |
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localToGlobal(?pt:Point):Point
Convert a local position (or [0,0] if pt is null) relative to the object origin into an absolute screen position, applying all the inherited transforms.
Parameters:
pt | An optional position to convert and return. Allocates new Point at 0,0 position if not set. Modifies the Point instance as is. |
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move(dx:Float, dy:Float):Void
Move the object by the specified amount along its current direction (Object.rotation angle).
private@:dox(show)onAdd():Void
Sent when object is being added to an allocated scene.
Do not remove the super call when overriding.
private@:dox(show)inlineonContentChanged():Void
Should be called when Object content was changed in order to notify parent container. See Object.contentChanged.
private@:dox(show)onHierarchyMoved(parentChanged:Bool):Void
Sent when object was already allocated and moved within scene object tree hierarchy.
Do not remove the super call when overriding.
Parameters:
parentChanged | Whether Object was moved withing same parent (through |
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private@:dox(show)onRemove():Void
Sent when object is removed from the allocated scene.
Do not remove the super call when overriding.
removeChild(s:Object):Void
Remove the given object from the immediate children list of the object if it's part of it.
private@:dox(show)setParentContainer(c:Object):Void
Sets the parent container for this Object and it's children.
See Object.contentChanged for more details.
private@:dox(show)sync(ctx:RenderContext):Void
Performs a sync of data for rendering (such as absolute position recalculation). While this method can be used as a substitute to an update loop, it's primary purpose it to prepare the Object to be rendered.
Do not remove the super call when overriding.