=============================================== Canvas - class to represent screen paint area and operations =============================================== This class can perform automatic coordinates transformations, so you can draw in Glyph coordinate space or, if you prefer, in screen coordinates directly Use constants defined for FontLab module in Fldict to assign attributes to Canvas object ++ Never create Canvas object explicitly - they must be obtained from the FontLab's window classes Canvas() - generic constructor, creates an empty Canvas Canvas(Canvas) - copy constructor delta (Point) - horizontal shift during coordinates transformation scale (Point(float)) - scaling during coordinates transformation parent (read-only) - parent object draw_style (integer, write-only) - sets current drawing mode (copy, XOR, invert etc.) pen_color (integer, write-only) - sets current pen color pen_style (integer, write-only) - sets current pen style (solid, dashed etc.) brush_color (integer, write-only) - sets current brush color brush_style (integer, write-only) - sets current brush style (solid, patterned etc.) text_color (integer, write-only) - sets color for a text bk_color (integer, write-only) - sets color for a text background bk_mode (integer, write-only) - sets background mode for a text output (transparent or opaque) none MoveTo(Point p) | (x, y) - moves current position to p or (x, y) coordinates LineTo(Point p) | (x, y) - draws a straight line to the position p or (x, y) coordinates CurveTo(Point p0, Point p1, Point p2) - draws a 3th-order Bezier curve from the current point to points p0, p1, p2 SplineTo(Point p0, Point p1) - draws a 2th-order Bezier curve from the current point to points p0, p1 Ellipse(Rect r) | (Point p0, Point p1) | (x0, y0, x1, y1) - draws a filled ellipse defined by the Rect r, points p0 and p1 or set of coordinates Rectangle(Rect r) | (Point p0, Point p1) | (x0, y0, x1, y1) - draws a filled rectangle defined by the Rect r, points p0 and p1 or set of coordinates Convert(Point p) - converts coordinates from the source coordinate space to screen coordinates UnConvert(Point p) - converts screen coordinates to the currently defined coordinate space FitGlyph(Rect r, Glyph g) | (Rect r, Glyph g, WeightVector w) - recalculates parameters of coordinate conversion function to fit glyph g into rectangle r using currently selected options. FillGlyph(Glyph g) | (Glyph g, WeightVector w) - fills the glyph g using current coordinate transformation. OutlineGlyph(Glyph g) | (Glyph g, WeightVector w) - draws the glyph g outline using current coordinate transformation. TextOut(Point p, string s) | (x, y, string s) - draws the string s in the position p or (x, y) PutImage(Image i, Point p) | (Image i, Point p, int mode) - puts Image i at the selected point