module TaskJuggler::Painter::Primitives
This module contains utility methods to create the canvas Elements with minimal overhead. The element is added to it’s current parent and mandatory arguments are enforced. It also eliminates the need to call ‘new’ methods of each Element
.
Constants
- FillAndStrokeAttrs
- FillAttrs
- StrokeAttrs
- TextAttrs
Public Instance Methods
Source
# File lib/taskjuggler/Painter/Primitives.rb, line 48 def circle(cx, cy, r, attrs = {}) attrs[:cx] = cx attrs[:cy] = cy attrs[:r] = r @elements << (c = Circle.new(attrs)) c end
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# File lib/taskjuggler/Painter/Primitives.rb, line 35 def color(*args) Color.new(*args) end
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# File lib/taskjuggler/Painter/Primitives.rb, line 56 def ellipse(cx, cy, rx, ry, attrs = {}) attrs[:cx] = cx attrs[:cy] = cy attrs[:rx] = rx attrs[:ry] = ry @elements << (e = Ellipse.new(attrs)) e end
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# File lib/taskjuggler/Painter/Primitives.rb, line 43 def group(attrs = {}, &block) @elements << (g = Group.new(attrs, &block)) g end
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# File lib/taskjuggler/Painter/Primitives.rb, line 65 def line(x1, y1, x2, y2, attrs = {}) attrs[:x1] = x1 attrs[:y1] = y1 attrs[:x2] = x2 attrs[:y2] = y2 @elements << (l = Line.new(attrs)) l end
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# File lib/taskjuggler/Painter/Primitives.rb, line 39 def points(arr) Points.new(arr) end
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# File lib/taskjuggler/Painter/Primitives.rb, line 74 def polyline(points, attrs = {}) attrs[:points] = points.is_a?(Array) ? Points.new(points) : points @elements << (l = PolyLine.new(attrs)) l end
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# File lib/taskjuggler/Painter/Primitives.rb, line 80 def rect(x, y, width, height, attrs = {}) attrs[:x] = x attrs[:y] = y attrs[:width] = width attrs[:height] = height @elements << (r = Rect.new(attrs)) r end
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# File lib/taskjuggler/Painter/Primitives.rb, line 89 def text(x, y, str, attrs = {}) attrs[:x] = x attrs[:y] = y @elements << (t = Text.new(str, attrs)) t end