Starts a non Contextual Graphics API

gc.go

@@ -8,29 +8,6 @@ import (
 	"image/color"
 )
 
-type FillRule int
-
-const (
-	FillRuleEvenOdd FillRule = iota
-	FillRuleWinding
-)
-
-type LineCap int
-
-const (
-	RoundCap LineCap = iota
-	ButtCap
-	SquareCap
-)
-
-type LineJoin int
-
-const (
-	BevelJoin LineJoin = iota
-	RoundJoin
-	MiterJoin
-)
-
 type GraphicContext interface {
 	PathBuilder
 	// BeginPath creates a new path

graphics.go

@@ -0,0 +1,103 @@
+package draw2d
+
+import (
+	"image/color"
+)
+
+// FillRule defines the fill rule used when fill
+type FillRule int
+
+const (
+	// FillRuleEvenOdd determines the "insideness" of a point in the shape
+	// by drawing a ray from that point to infinity in any direction
+	// and counting the number of path segments from the given shape that the ray crosses.
+	// If this number is odd, the point is inside; if even, the point is outside.
+	FillRuleEvenOdd FillRule = iota
+	// FillRuleWinding determines the "insideness" of a point in the shape
+	// by drawing a ray from that point to infinity in any direction
+	// and then examining the places where a segment of the shape crosses the ray.
+	// Starting with a count of zero, add one each time a path segment crosses
+	// the ray from left to right and subtract one each time
+	// a path segment crosses the ray from right to left. After counting the crossings,
+	// if the result is zero then the point is outside the path. Otherwise, it is inside.
+	FillRuleWinding
+)
+
+// LineCap is the style of line extremities
+type LineCap int
+
+const (
+	// RoundCap defines a rounded shape at the end of the line
+	RoundCap LineCap = iota
+	// ButtCap defines a squared shape exactly at the end of the line
+	ButtCap
+	// SquareCap defines a squared shape at the end of the line
+	SquareCap
+)
+
+// LineJoin is the style of segments joint
+type LineJoin int
+
+const (
+	// BevelJoin represents cut segments joint
+	BevelJoin LineJoin = iota
+	// RoundJoin represents rounded segments joint
+	RoundJoin
+	// MiterJoin represents peaker segments joint
+	MiterJoin
+)
+
+// StrokeStyle keeps stroke style attributes
+// that is used by the Stroke method of a Drawer
+type StrokeStyle struct {
+	// Color defines the color of stroke
+	Color color.Color
+	// Line width
+	Width float64
+	// Line cap style rounded, butt or square
+	LineCap LineCap
+	// Line join style bevel, round or miter
+	LineJoin LineJoin
+	// offset of the first dash
+	dashOffset float64
+	// array represented dash length pair values are plain dash and impair are space between dash
+	// if empty display plain line
+	dash []float64
+}
+
+// FillStyle
+type FillStyle struct {
+}
+
+// SolidFillStyle define style attributes for a solid fill style
+type SolidFillStyle struct {
+	FillStyle
+	// Color defines the line color
+	Color color.Color
+	// FillRule defines the file rule to used
+	FillRule FillRule
+}
+
+type VerticalAlign int
+
+type HorizontalAlign int
+
+// TextStyle
+type TextStyle struct {
+	// Color defines the color of text
+	Color color.Color
+	// The font to use
+	Font FontData
+	// Horizontal Alignment of the text
+	HorizontalAlign HorizontalAlign
+	// Vertical Alignment of the text
+	VerticalAlign VerticalAlign
+}
+
+// Drawer can fill and stroke a path
+type Drawer interface {
+	setMatrix(MatrixTransform)
+	Fill(FillStyle, Path)
+	Stroke(StrokeStyle, Path)
+	Text(TextStyle, text string, x, y float64)
+}