The MyPaint brush engine class. Create a new MyPaint brush engine instance. Initial reference count is 1. Release references using mypaint_brush_unref() Get the base value of a brush setting. Returns how many inputs are used for the dynamics of a #MyPaintBrushSetting Get the number of points used for the dynamics mapping between a #MyPaintBrushInput and #MyPaintBrushSetting. Get a X,Y point of a dynamics mapping. Location to return the X value Location to return the Y value Get an internal brush engine state. Normally used for debugging, but can be used to implement record & replay functionality. Return the total amount of painting time for the current stroke. Returns TRUE if the brush has no dynamics for the given #MyPaintBrushSetting Start a new stroke. Increase the reference count. Reset the current brush engine state. Used when the next mypaint_brush_stroke_to() call is not related to the current state. Note that the reset request is queued and changes in state will only happen on next stroke_to() Set the base value of a brush setting. Set the number of points used for the dynamics mapping between a #MyPaintBrushInput and #MyPaintBrushSetting. Set a X,Y point of a dynamics mapping. The index must be within the number of points set using mypaint_brush_set_mapping_n() Enable/Disable printing of brush engine inputs on stderr. Intended for debugging only. Set an internal brush engine state. Normally used for debugging, but can be used to implement record & replay functionality. Should be called once for each motion event. non-0 if the stroke is finished or empty, else 0. Time since last motion event, in seconds. Should be called once for each motion event. non-0 if the stroke is finished or empty, else 0. Time since last motion event, in seconds. Canvas zoom; 1.0 = 100% zoom. Zoom value v *must* be in range: 0.0 < v < FLOAT_MAX (reasonable max is probably always below 100). Zoom value cannot be 0! Same as mypaint_brush_stroke_to_2, but color _dynamics_ operate in linear sRGB, i.e. settings that change the hue/value/lightness/saturation of the brush color. Decrease the reference count. Will be freed when it hits 0. Simple #MyPaintTiledSurface subclass that implements a fixed sized #MyPaintSurface. Only intended for testing and trivial use-cases, and to serve as an example of how to implement a tiled surface subclass. Draw a dab onto the surface. Invalidation rectangle Initialize the surface. The reference count will be set to 1. Note: Only intended to be called from subclasses of #MyPaintSurface Increase the reference count. Decrease the reference count. Draw a dab with support for posterization and spectral blending. Invalidated rectangles will be stored here. The value of roi->num_rectangles must be at least 1, and roi->rectangles must point to sufficient accessible memory to contain n = roi->num_rectangles of MyPaintRectangle structs. Access the parent MyPaintSurface. Initialize a request for use with mypaint_tiled_surface_tile_request_start() and mypaint_tiled_surface_tile_request_end() Testing if this comment ends up in the gir. Deallocate resources set up by mypaint_tiled_surface_init() Does not free the #MyPaintTiledSurface itself. Note: Only intended to be called from subclasses of #MyPaintTiledSurface Implementation of #MyPaintSurface::end_atomic vfunc Note: Only intended to be used from #MyPaintTiledSurface subclasses, which should chain up to this if implementing their own #MyPaintSurface::end_atomic vfunc. Application code should only use mypaint_surface_end_atomic(). Initialize the surface, passing in implementations of the tile backend. Note: Only intended to be called from subclasses of #MyPaintTiledSurface Enable/Disable symmetric brush painting across an X axis. TRUE to enable, FALSE to disable. X axis to mirror events across. Deallocate resources set up by mypaint_tiled_surface2_init() Does not free the #MyPaintTiledSurface itself. Note: Only intended to be called from subclasses of #MyPaintTiledSurface Initialize the surface, passing in implementations of the tile backend. Note: Only intended to be called from subclasses of #MyPaintTiledSurface