X-Git-Url: https://jasonwoof.com/gitweb/?p=crayon_mockup.git;a=blobdiff_plain;f=main.coffee;h=8f203135bb858cd7e8814d80ba5c9cb5b6b2997c;hp=1f4edfcfa5bec00d411f765191bda5a156097d4e;hb=f65a88a4b471687241a8cb8ed43f3573b77a583e;hpb=912bd53ea7a631dce774bb7dd380e77dfd0e0680

diff --git a/main.coffee b/main.coffee
index 1f4edfc..8f20313 100644
--- a/main.coffee
+++ b/main.coffee
@@ -46,6 +46,53 @@ json_to_svg = (json) ->
 				el.setAttribute k, v
 	return el
 
+resizer_nw = (widget) ->
+	return (dxy) ->
+		widget.resize w: widget.width - dxy.x, h: widget.height - dxy.y
+		widget.move x: widget.x + dxy.x, y: widget.y + dxy.y
+resizer_n = (widget) ->
+	return (dxy) ->
+		widget.resize w: widget.width, h: widget.height - dxy.y
+		widget.move x: widget.x, y: widget.y + dxy.y
+resizer_ne = (widget) ->
+	return (dxy) ->
+		widget.resize w: widget.width + dxy.x, h: widget.height - dxy.y
+		widget.move x: widget.x, y: widget.y + dxy.y
+resizer_e = (widget) ->
+	return (dxy) ->
+		widget.resize w: widget.width + dxy.x, h: widget.height
+resizer_se = (widget) ->
+	return (dxy) ->
+		widget.resize w: widget.width + dxy.x, h: widget.height + dxy.y
+resizer_s = (widget) ->
+	return (dxy) ->
+		widget.resize w: widget.width, h: widget.height + dxy.y
+resizer_sw = (widget) ->
+	return (dxy) ->
+		widget.resize w: widget.width - dxy.x, h: widget.height + dxy.y
+		widget.move x: widget.x + dxy.x, y: widget.y
+resizer_w = (widget) ->
+	return (dxy) ->
+		widget.resize w: widget.width - dxy.x, h: widget.height
+		widget.move x: widget.x + dxy.x, y: widget.y
+resizers = [
+	resizer_nw
+	resizer_n
+	resizer_ne
+	resizer_e
+	resizer_se
+	resizer_s
+	resizer_sw
+	resizer_w
+]
+resizer_shapes = [
+	-> return "M#{@x - 5} #{@y - 5}h6l-2 2 4 4 2 -2v6h-6l2-2-4-4-2 2z"
+	-> return "M #{@x},#{@y - 7} l 4,4 -2.5,0 0,5 2.5,0 -4,4 -4,-4 2.5,0 0,-5 -2.5,0 z"
+	-> return "M#{@x + 5} #{@y - 5}v6l-2-2-4 4 2 2h-6v-6l2 2 4-4-2-2z"
+	-> return "M #{@x - 7},#{@y} l 4,-4 0,2.5 5,0 0,-2.5 4,4 -4,4 0,-2.5 -5,0 0,2.5 z"
+]
+shape_node_move = -> "M#{@x} #{@y - 9}l-2.5 4.5h2v2.404a2.156 2.156 0 0 0-1.596 1.596h-2.404v-2l-4.5 2.5 4.5 2.5v-2h2.404a2.156 2.156 0 0 0 1.596 1.596v2.404h-2l2.5 4.5 2.5-4.5h-2v-2.404a2.156 2.156 0 0 0 1.596-1.596h2.404v2l4.5-2.5-4.5-2.5v2h-2.404a2.156 2.156 0 0 0-1.596-1.596v-2.404h2l-2.5-4.5z"
+
 next_widget_id = 0
 # public vars: x, y, width, height, el
 class Visible
@@ -96,15 +143,13 @@ class Control extends Visible
 		dx = xy.x - @x
 		dy = xy.y - @y
 		return dx * dx + dy * dy
-
-class ControlPoint extends Control
+class ControlPath extends Control
 	constructor: (args) ->
 		super args
 		@css_class = 'control_point'
-		@el = json_to_svg circle:
-			cx: @x + 1
-			cy: @y + 1
-			r: 6
+		@make_path = args.shape
+		@el = json_to_svg path:
+			d: @make_path()
 			class: 'control_point normal'
 		@svg.appendChild @el
 	destruct: ->
@@ -113,8 +158,7 @@ class ControlPoint extends Control
 			@svg.removeChild @el
 	move: (args) ->
 		super args
-		@el.setAttribute 'cx', @x
-		@el.setAttribute 'cy', @y
+		@el.setAttribute 'd', @make_path()
 
 class Widget extends Visible
 	#sub-classes are expected to implement all of these:
@@ -129,7 +173,6 @@ class Widget extends Visible
 	make_controls: -> # create controls, return them
 		return []
 	kill_controls: ->
-		console.log 'kill_controls'
 		for c in @controls
 			c.destruct()
 		@controls = []
@@ -170,6 +213,7 @@ class RectWidget extends Widget
 		super args
 		@el.setAttribute 'x', @x + 1
 		@el.setAttribute 'y', @y + 1
+		@reposition_controls()
 	proximity: (xy) -> # return the square of the distance to your visible bits
 		x = xy.x
 		y = xy.y
@@ -194,29 +238,177 @@ class RectWidget extends Widget
 			new_prox *= new_prox
 			if new_prox < prox
 				prox = new_prox
-		if in_x and in_y and prox > PROX_MAX
-			prox = PROX_MAX - 1
+		# "hit" anything inside
+		#if in_x and in_y and prox > PROX_MAX
+		#	prox = PROX_MAX - 1
 		return prox
 	resize: (wh) ->
+		dw = wh.w - @width
+		dh = wh.h - @height
 		@width = wh.w
-		@el.setAttribute 'width', @width
+		@el.setAttribute 'width', @width - 2
 		@height = wh.h
-		@el.setAttribute 'height', @height
+		@el.setAttribute 'height', @height - 2
+		@reposition_controls()
+	reposition_controls: ->
 		if @controls.length > 1
-			@controls[1].move x: @x + @width, y: @y + @height
+			positions = @control_positions()
+			for i in [0...positions.length]
+				@controls[i].move x: positions[i].x, y: positions[i].y
+	control_positions: ->
+		gap = 7
+		mgap = 9
+		w2p = Math.floor(@width / 2) + 0.5
+		h2p = Math.floor(@height / 2) + 0.5
+		return [
+			{ x: @x - gap, y: @y - gap }
+			{ x: @x + w2p, y: @y - mgap }
+			{ x: @x + @width + gap, y: @y - gap }
+			{ x: @x + @width + mgap, y: @y + h2p }
+			{ x: @x + @width + gap, y: @y + @height + gap }
+			{ x: @x + w2p, y: @y + @height + mgap }
+			{ x: @x - gap, y: @y + @height + gap }
+			{ x: @x - mgap, y: @y + h2p }
+		]
 	make_controls: (args) -> # create controls, return them
-		console.log 'make_controls'
 		if @controls.length > 0
-			console.log "warning: re-adding controls"
+			if console?.log?
+				console.log "warning: re-adding controls"
 			@kill_controls()
-		w = @
-		@controls = [
-			new ControlPoint svg: @svg, x: @x, y: @y, done: args.done, drag: (dxy) ->
-				w.resize w: w.width - dxy.x, h: w.height - dxy.y
-				w.move x: w.x + dxy.x, y: w.y + dxy.y
-			new ControlPoint svg: @svg, x: @x + @width, y: @y + @height, done: args.done, drag: (dxy) ->
-				w.resize w: w.width + dxy.x, h: w.height + dxy.y
-		]
+		positions = @control_positions()
+		for i in [0...positions.length]
+			@controls.push new ControlPath {
+				svg: @svg
+				x: positions[i].x
+				y: positions[i].y
+				done: args.done
+				drag: resizers[i] @
+				shape: resizer_shapes[i % resizer_shapes.length]
+			}
+		return @controls
+
+class PolylineWidget extends Widget
+	constructor: (args) ->
+		super args
+		@css_class = 'polyline'
+		@nodes = []
+		for n in args.nodes
+			@nodes.push x: n.x, y: n.y
+		@el = json_to_svg path:
+			d: @my_path_d()
+			class: 'polyline normal'
+		@svg.appendChild @el
+	destruct: ->
+		super()
+		if @el?
+			@svg.removeChild @el
+	clone: ->
+		return new PolylineWidget @
+	my_path_d: ->
+		ret = ''
+		for n in @nodes
+			if ret is ''
+				ret += 'M'
+			else
+				ret += 'L'
+			ret += n.x + @x
+			ret += ' '
+			ret += n.y + @y
+		return ret
+	set_state: (state) ->
+		super state
+		@update_class()
+	move: (args) ->
+		super args
+		@el.setAttribute 'd', @my_path_d()
+		@reposition_controls()
+	proximity: (xy) -> # return the square of the distance to your visible bits
+		prox = PROX_TOO_FAR
+		for n, i in @nodes
+			dx = @x + n.x - xy.x
+			dy = @y + n.y - xy.y
+			p = dx * dx + dy * dy
+			if p < prox
+				prox = p
+			if i > 0
+				l1x = @x + @nodes[i-1].x
+				l1y = @y + @nodes[i-1].y
+				l2x = @x + @nodes[i].x
+				l2y = @y + @nodes[i].y
+				ldx = l2x - l1x
+				ldy = l2y - l1y
+				if ldx is 0 # vertical line
+					if (xy.y < l1y) is (xy.y < l2y)
+						continue
+					dx = l1x - xy.x
+					p = dx * dx
+				else if ldy is 0 # horizontal line
+					if (xy.x < l1x) is (xy.x < l2x)
+						continue
+					dy = l1y - xy.y
+					p = dy * dy
+				else # slanty line
+					# https://en.wikipedia.org/wiki/Distance_from_a_point_to_a_line
+					a = ldy
+					b = -1 * ldx
+					c = l2x * l1y - l2y * l1x
+					y_on_line = (a * (a * xy.y - b * xy.x) - b * c) / (a * a + b * b)
+					if (y_on_line < l1y) is (y_on_line < l2y)
+						continue
+					p = (a * xy.x + b * xy.y + c) / Math.sqrt(a * a + b * b)
+					p *= p
+
+				if p < prox
+					prox = p
+		return prox
+	resize: (wh) ->
+		# FIXME (apply to more than just 2nd node)
+		@nodes[1].x = wh.w
+		@nodes[1].y = wh.h
+		@width = wh.w
+		@height = wh.h
+		@el.setAttribute 'd', @my_path_d()
+		@reposition_controls()
+		return
+	node_dragger: (i) ->
+		if i is 0
+			return (dxy) =>
+				for i in [1...@nodes.length]
+					@nodes[i].x -= dxy.x
+					@nodes[i].y -= dxy.y
+				@move x: @x + dxy.x, y: @y + dxy.y
+		return (dxy) =>
+			@nodes[i].x += dxy.x
+			@nodes[i].y += dxy.y
+			@el.setAttribute 'd', @my_path_d()
+			@reposition_controls()
+	reposition_controls: ->
+		if @controls.length > 1
+			positions = @control_positions()
+			for i in [0...positions.length]
+				@controls[i].move x: positions[i].x, y: positions[i].y
+		return
+	control_positions: ->
+		ret = []
+		for n in @nodes
+			ret.push x: @x + n.x, y: @y + n.y
+		return ret
+	make_controls: (args) -> # create controls, return them
+		console.log 'make line controls'
+		if @controls.length > 0
+			if console?.log?
+				console.log "warning: re-adding controls"
+			@kill_controls()
+		positions = @control_positions()
+		for i in [0...positions.length]
+			@controls.push new ControlPath {
+				svg: @svg
+				x: positions[i].x
+				y: positions[i].y
+				done: args.done
+				drag: @node_dragger i
+				shape: shape_node_move
+			}
 		return @controls
 
 # called automatically on domcontentloaded
@@ -235,7 +427,7 @@ init = ->
 		]
 	svg.appendChild json_to_svg style:
 		type: 'text/css'
-		contents: '.box.normal{filter: url(#crayon)}'
+		contents: '.box.normal,.polyline.normal{filter: url(#crayon)}'
 
 	# create canvas border
 	svg.appendChild json_to_svg rect:
@@ -246,19 +438,21 @@ init = ->
 		class: 'canvas_border'
 
 	supply = {}
-	for args, i in [
-		{ width: 40, height: 40 }
-		{ width: 12, height: 50 }
-		{ width: 70, height: 12 }
-	]
-		widget = new RectWidget {
-			width: args.width
-			height: args.height
-			x: 30 + i * 90 + (70 - args.width) / 2
-			y: (supply_height - args.height) / 2
-			svg: svg
-		}
-		supply[widget.id] = widget
+	supply_count = 0
+	supply_add = (type, args) ->
+		args.x ?= 0
+		args.y ?= 0
+		args.x += 30 + supply_count * 90
+		args.y += (supply_height - 50) / 2
+		args.svg = svg
+		w = new type args
+		supply[w.id] = w
+		supply_count += 1
+	supply_add RectWidget, width: 50, height: 50
+	supply_add PolylineWidget, y: 25, nodes: [{x: 0, y: 0}, {x: 50, y: 0}]
+	supply_add PolylineWidget, x: 25, nodes: [{x: 0, y: 0}, {x: 0, y: 50}]
+	supply_add PolylineWidget, x: 10, nodes: [{x: 0, y: 0}, {x: 15, y: 50}, {x: 30, y: 0}]
+	supply_add PolylineWidget, nodes: [{x: 0, y: 50}, {x: 17, y: 0}, {x: 33, y: 50}, {x: 50, y: 0}]
 
 	# editor state
 	controls_layer = { all: {}, selected: {} }
@@ -359,7 +553,6 @@ init = ->
 			dragging = true
 			drag_layer = hit.layer
 			drag_from = xy
-			console.log hit
 		else
 			deselect_all widget_layer
 		return