Gradient

Base class for LinearGradient and RadialGradient.

It's not possible to create instances of this class.

class Gradient : Pattern {

this(cairo_pattern_t* ptr);

void addColorStopRGB(double offset, RGB color);

void addColorStopRGB(double offset, double red, double green, double blue);

void addColorStopRGBA(double offset, RGBA color);

void addColorStopRGBA(double offset, double red, double green, double blue, double alpha);

int getColorStopCount();

alias colorStopCount = getColorStopCount;

void getColorStopRGBA(int index, double offset, RGBA color);

}

Constructors

this this(cairo_pattern_t* ptr): Create a Gradient from a existing cairo_pattern_t*. Gradient is a garbage collected class. It will call cairo_pattern_destroy when it gets collected by the GC or when dispose() is called.

Members

Aliases

colorStopCount alias colorStopCount = getColorStopCount: Convenience alias

Functions

addColorStopRGB void addColorStopRGB(double offset, RGB color)
void addColorStopRGB(double offset, double red, double green, double blue): Adds an opaque color stop to a gradient pattern. The offset specifies the location along the gradient's control vector. For example, a LinearGradient's control vector is from (x0,y0) to (x1,y1) while a RadialGradient's control vector is from any point on the start circle to the corresponding point on the end circle.
addColorStopRGBA void addColorStopRGBA(double offset, RGBA color)
void addColorStopRGBA(double offset, double red, double green, double blue, double alpha): Adds a translucent color stop to a gradient pattern. The offset specifies the location along the gradient's control vector. For example, a linear gradient's control vector is from (x0,y0) to (x1,y1) while a radial gradient's control vector is from any point on the start circle to the corresponding point on the end circle.
getColorStopCount int getColorStopCount(): Gets the number of color stops specified in the given gradient pattern.
getColorStopRGBA void getColorStopRGBA(int index, double offset, RGBA color): Gets the color and offset information at the given index for a gradient pattern. Values of index are 0 to 1 less than the number returned by getColorStopCount().

Inherited Members

From Pattern

__anonymous mixin CairoCountedClass!(cairo_pattern_t*, "cairo_pattern_")
checkError void checkError(): Method for use in subclasses. Calls cairo_pattern_status(nativePointer) and throws an exception if the status isn't CAIRO_STATUS_SUCCESS
createFromNative Pattern createFromNative(cairo_pattern_t* ptr, bool adjRefCount): The createFromNative method for the Pattern classes. See https://github.com/jpf91/cairoD/wiki/Memory-Management#createFromNative for more information.
setExtend void setExtend(Extend ext): Sets the mode to be used for drawing outside the area of a pattern. See Extend for details on the semantics of each extend strategy. The default extend mode is CAIRO_EXTEND_NONE for surface patterns and CAIRO_EXTEND_PAD for gradient patterns.
getExtend Extend getExtend(): Gets the current extend mode for a pattern. See Extend for details on the semantics of each extend strategy.
setFilter void setFilter(Filter fil): Sets the filter to be used for resizing when using this pattern. See Filter for details on each filter.
getFilter Filter getFilter(): Gets the current filter for a pattern. See Filter for details on each filter.
filter void filter(Filter fil)
Filter filter(): Convenience property
setMatrix void setMatrix(Matrix mat): Sets the pattern's transformation matrix to matrix. This matrix is a transformation from user space to pattern space.
getMatrix Matrix getMatrix(): Returns the pattern's transformation matrix.
matrix Matrix matrix [@property setter]
Matrix matrix [@property getter]: Convenience property
getType PatternType getType(): This function returns the C type of a pattern. See PatternType for available types.
type PatternType type [@property getter]: Convenience property

The OpenD Programming Language

Gradient

Constructors

Members

Aliases

Functions

Inherited Members

From Pattern

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