akkartik/wardley.love - Change U4DYD4L2LZQ4U4ZNBVA4E5DMHCWTF25A6Q4GS35B3FKB74MPIQ4AC

reorg: be much more deliberate about mutable state

on.draw no longer mutates anything but the screen.

We now have levels of recomputation:

A: convert hierarchies of text (Page) into a flat array of shapes (Surface)
B: convert surface coordinates to viewport coordinates.
..and lots of room to grow. Importantly, these levels are decoupled from on.* events.

The level at which we start using viewport settings (B) is also responsible for updating the default font, a global setting used all over the place inside the editor widget.

Hopefully we won't see bad box heights any more. We still have text rendering differently at different zoom levels, though.

Created by Kartik K. Agaram on December 23, 2022

U4DYD4L2LZQ4U4ZNBVA4E5DMHCWTF25A6Q4GS35B3FKB74MPIQ4AC

Dependencies

In channels

main

Change contents

Replacement in head at line 1 [3.10815]
B:BD[3.10815] → [2.12:15]
```
298
```
[3.10815]
```
316
```

File addition: 0316-manifest (----------)

[4.2]

{"clip":236,"on.mouse_released":178,"clip_all":265,"on.update":315,"box_height":297,"on.keychord_pressed":311,"compute_layout":301,"scale":7,"Page":312,"Box_heights":277,"to_text":180,"B":316,"Surface":196,"Cursor_node":172,"on.draw":310,"font":228,"vx":5,"on.code_changed":306,"Viewport":303,"on.textinput":177,"A":309,"vy":8,"parent":315,"on.initialize":304,"on":1,"initialize_editor":313,"on.mouse_pressed":179}

File addition: 0316-B (----------)

[4.2]

B = function()
	-- recompute various aspects based on the current viewport settings
	love.graphics.setFont(love.graphics.newFont(scale(20)))  -- editor objects implicitly depend on current font so update it
	for _,obj in ipairs(Surface) do
		if obj.type == 'line' then
			obj.zdata = {}
			for i=1,#obj.data,2 do
				table.insert(obj.zdata, vx(obj.data[i]))
				table.insert(obj.zdata, vy(obj.data[i+1]))
			end
		elseif obj.type == 'bezier' then
			zdata = {}
			for i=1,#obj.data,2 do
				table.insert(zdata, vx(obj.data[i]))
				table.insert(zdata, vy(obj.data[i+1]))
			end
			obj.zdata = love.math.newBezierCurve(zdata):render()
		elseif obj.type == 'text' then
			if obj.w then
				initialize_editor(obj)
			else
				obj.text = love.graphics.newText(love.graphics.getFont(), obj.data)
			end
		end
	end
end

File addition: 0315-on.update (----------)

[4.2]

on.update = function(dt)
	if Pan then
		Viewport.x = Pan.x - love.mouse.getX()
		Viewport.y = Pan.y - love.mouse.getY()
	end
	if App.mouse_down(1) then
		B()
		clip_all()
	end
end

File addition: 0315-manifest (----------)

[4.2]

{"Box_heights":277,"on.textinput":177,"B":314,"on.mouse_pressed":179,"on":1,"Surface":196,"clip_all":265,"clip":236,"on.draw":310,"Viewport":303,"scale":7,"on.update":315,"on.keychord_pressed":311,"Page":312,"on.mouse_released":178,"vy":8,"initialize_editor":313,"box_height":297,"to_text":180,"compute_layout":301,"vx":5,"parent":314,"Cursor_node":172,"on.initialize":304,"font":228,"A":309,"on.code_changed":306}

File addition: 0314-manifest (----------)

[4.2]

{"Box_heights":277,"on.textinput":177,"B":314,"on.mouse_pressed":179,"on":1,"Surface":196,"clip_all":265,"clip":236,"on.draw":310,"Viewport":303,"scale":7,"on.update":239,"on.keychord_pressed":311,"Page":312,"on.mouse_released":178,"vy":8,"initialize_editor":313,"box_height":297,"to_text":180,"compute_layout":301,"vx":5,"parent":313,"Cursor_node":172,"on.initialize":304,"font":228,"A":309,"on.code_changed":306}

File addition: 0314-B (----------)

[4.2]

B = function()
	-- editor objects implicitly depend on current font so update it
	love.graphics.setFont(love.graphics.newFont(scale(20)))
	for _,obj in ipairs(Surface) do
		if obj.type == 'line' then
			obj.zdata = {}
			for i=1,#obj.data,2 do
				table.insert(obj.zdata, vx(obj.data[i]))
				table.insert(obj.zdata, vy(obj.data[i+1]))
			end
		elseif obj.type == 'bezier' then
			zdata = {}
			for i=1,#obj.data,2 do
				table.insert(zdata, vx(obj.data[i]))
				table.insert(zdata, vy(obj.data[i+1]))
			end
			obj.zdata = love.math.newBezierCurve(zdata):render()
		elseif obj.type == 'text' then
			if obj.w then
				initialize_editor(obj)
			else
				obj.text = love.graphics.newText(love.graphics.getFont(), obj.data)
			end
		end
	end
end

File addition: 0313-manifest (----------)

[4.2]

{"Viewport":303,"Box_heights":277,"vy":8,"A":309,"on.mouse_pressed":179,"to_text":180,"on.mouse_released":178,"B":308,"on.update":239,"parent":312,"on.keychord_pressed":311,"compute_layout":301,"clip_all":265,"box_height":297,"Cursor_node":172,"initialize_editor":313,"Page":312,"font":228,"on.code_changed":306,"scale":7,"on.textinput":177,"Surface":196,"on":1,"on.initialize":304,"on.draw":310,"clip":236,"vx":5}

File addition: 0313-initialize_editor (----------)

[4.2]

initialize_editor = function(obj)
	if obj.w then
		-- use an editor to wrap the text
		local scaled_fontsize = scale(20)
		local scaled_lineheight = math.floor(scaled_fontsize*1.3)
		print('init', obj.data[1], obj.w)
		obj.editor = edit.initialize_state(vy(obj.y), vx(obj.x), vx(obj.x+obj.w), scaled_fontsize, scaled_lineheight)
		obj.editor.lines = load_array(obj.data)
		Text.redraw_all(obj.editor)
	end
end

File addition: 0312-manifest (----------)

[4.2]

{"Viewport":303,"Box_heights":277,"vy":8,"A":309,"on.mouse_pressed":179,"to_text":180,"on.mouse_released":178,"B":308,"on.update":239,"parent":311,"on.keychord_pressed":311,"compute_layout":301,"clip_all":265,"box_height":297,"Cursor_node":172,"initialize_editor":300,"Page":312,"font":228,"on.code_changed":306,"scale":7,"on.textinput":177,"Surface":196,"on":1,"on.initialize":304,"on.draw":310,"clip":236,"vx":5}

File addition: 0312-Page (----------)

[4.2]

Page = {
    -- page
	type='cols', x=0, y=0,
    width=800, data={
      -- editor covering left side
      {
		type='text',
        name='editor',
        doc='prose goes here, on the left half of the window',
        margin=Margin_left,
        data={
--			"Lorem Ipsum has been the industry's standard dummy text ever since the 1500s, when an unknown printer took a galley of type and scrambled it to make a type specimen book. It has survived not only five centuries, but also the leap into electronic typesetting, remaining essentially unchanged. It was popularised in the 1960s with the release of Letraset sheets containing Lorem Ipsum passages, and more recently with desktop publishing software like Aldus PageMaker including versions of Lorem Ipsum.",
			'1',
			'2',
			'3',
			'mno',
			'Acb',
			'g',
			'hij',
			'klm',
			'nop',
		},
        width=400, bg={r=1,g=1,b=0}
      },
      -- a table on the right
      { type='rows', name='searches', margin=50, data={
        { type='text', data={''},},
        { type='cols', data={
          { type='text', data={'search:'},},
          { type='text', name='search', bg={r=0.8,g=0.8,b=0.8}, data={''}, width=90,},
        }},
		{ type='text', data={'table:'},},
        { type='cols', bg={r=0.8,g=0.8,b=0.8}, data={
            { type='rows', width=90, data={
              {type='text', data={'abc'},},
              {type='text', data={'abc'},},
            }},
            { type='rows', width=90, data={
              {type='text', data={'def'},},
              {type='text', data={'def'},},
            }},
        }},
      }},
    },
}

File addition: 0311-on.keychord_pressed (----------)

[4.2]

on.keychord_pressed = function(chord, key)
	if chord == 'C-=' then
		-- zoom in
		Viewport.zoom = Viewport.zoom+0.1
		B()
	elseif chord == 'C--' then
		-- zoom out
		Viewport.zoom = Viewport.zoom-0.1
		B()
	elseif chord == 'C-0' then
		-- reset zoom
		Viewport.zoom = 1.0
		B()
	elseif Cursor_node then
		edit.keychord_pressed(Cursor_node.editor, chord, key)
	end
end

File addition: 0311-manifest (----------)

[4.2]

{"Viewport":303,"Box_heights":277,"vy":8,"A":309,"on.mouse_pressed":179,"to_text":180,"on.mouse_released":178,"B":308,"on.update":239,"parent":310,"on.keychord_pressed":311,"compute_layout":301,"clip_all":265,"box_height":297,"Cursor_node":172,"initialize_editor":300,"Page":296,"font":228,"on.code_changed":306,"scale":7,"on.textinput":177,"Surface":196,"on":1,"on.initialize":304,"on.draw":310,"clip":236,"vx":5}

File addition: 0310-on.draw (----------)

[4.2]

on.draw = function()
	love.graphics.setColor(1,0,0)
	for y=0,1000,100 do
		love.graphics.line(vx(-5),vy(y), vx(5),vy(y))
	end
	for x=0,1000,100 do
		love.graphics.line(vx(x),vy(-5), vx(x),vy(5))
	end
	love.graphics.setColor(0,1,0)
	for _,y in ipairs(Box_heights) do
		love.graphics.line(vx(0), vy(y), vx(10), vy(y))
	end
	for _,obj in ipairs(Surface) do
		love.graphics.setColor(obj.r or 0, obj.g or 0, obj.b or 0)
		if obj.type == 'rectangle' then
			love.graphics.rectangle(obj.drawmode or 'fill', vx(obj.x),vy(obj.y), scale(obj.w),scale(obj.h))
		elseif obj.type == 'line' then
			love.graphics.line(unpack(obj.zdata))
		elseif obj.type == 'circle' then
			love.graphics.circle(obj.drawmode or 'fill', vx(obj.x), vy(obj.y), scale(obj.radius))
		elseif obj.type == 'arc' then
			love.graphics.arc(obj.drawmode or 'line', obj.arctype or 'open', vx(obj.x), vy(obj.y), scale(obj.radius), obj.angle1, obj.angle2, obj.segments)
		elseif obj.type == 'ellipse' then
			love.graphics.ellipse(obj.drawmode or 'fill', vx(obj.x), vy(obj.y), scale(obj.radiusx), scale(obj.radiusy))
		elseif obj.type == 'bezier' then
			love.graphics.line(unpack(obj.zdata))
		elseif obj.type == 'text' then
			if obj.w == nil then
				love.graphics.draw(obj.text, vx(obj.x), vy(obj.y))
			else
				edit.draw(obj.editor, obj.fg or {r=0,g=0,b=0}, not obj.show_cursor)
			end
		end
	end
end

File addition: 0310-manifest (----------)

[4.2]

{"Viewport":303,"Box_heights":277,"vy":8,"A":309,"on.mouse_pressed":179,"to_text":180,"on.mouse_released":178,"B":308,"on.update":239,"parent":309,"on.keychord_pressed":200,"compute_layout":301,"clip_all":265,"box_height":297,"Cursor_node":172,"initialize_editor":300,"Page":296,"font":228,"on.code_changed":306,"scale":7,"on.textinput":177,"Surface":196,"on":1,"on.initialize":304,"on.draw":310,"clip":236,"vx":5}

File addition: 0309-manifest (----------)

[4.2]

{"Viewport":303,"Box_heights":277,"vy":8,"A":309,"on.mouse_pressed":179,"to_text":180,"on.mouse_released":178,"B":308,"on.update":239,"parent":308,"on.keychord_pressed":200,"compute_layout":301,"clip_all":265,"box_height":297,"Cursor_node":172,"initialize_editor":300,"Page":296,"font":228,"on.code_changed":306,"scale":7,"on.textinput":177,"Surface":196,"on":1,"on.initialize":304,"on.draw":307,"clip":236,"vx":5}

File addition: 0309-A (----------)

[4.2]

A = function()
	-- translate Page to Surface
	while #Surface > 3 do table.remove(Surface) end  -- HACK
	compute_layout(Page, Page.x,Page.y, Surface)
	-- continue the pipeline
	B()
end

File addition: 0308-manifest (----------)

[4.2]

{"Viewport":303,"Box_heights":277,"vy":8,"A":305,"on.mouse_pressed":179,"to_text":180,"on.mouse_released":178,"B":308,"on.update":239,"parent":307,"on.keychord_pressed":200,"compute_layout":301,"clip_all":265,"box_height":297,"Cursor_node":172,"initialize_editor":300,"Page":296,"font":228,"on.code_changed":306,"scale":7,"on.textinput":177,"Surface":196,"on":1,"on.initialize":304,"on.draw":307,"clip":236,"vx":5}

File addition: 0308-B (----------)

[4.2]

B = function()
	for _,obj in ipairs(Surface) do
		if obj.type == 'line' then
			obj.zdata = {}
			for i=1,#obj.data,2 do
				table.insert(obj.zdata, vx(obj.data[i]))
				table.insert(obj.zdata, vy(obj.data[i+1]))
			end
		elseif obj.type == 'bezier' then
			zdata = {}
			for i=1,#obj.data,2 do
				table.insert(zdata, vx(obj.data[i]))
				table.insert(zdata, vy(obj.data[i+1]))
			end
			obj.zdata = love.math.newBezierCurve(zdata):render()
		elseif obj.type == 'text' then
			if obj.w then
				initialize_editor(obj)
			else
				obj.text = love.graphics.newText(love.graphics.getFont(), obj.data)
			end
		end
	end
end

File addition: 0307-on.draw (----------)

[4.2]

on.draw = function()
	love.graphics.setColor(1,0,0)
	for y=0,1000,100 do
		love.graphics.line(vx(-5),vy(y), vx(5),vy(y))
	end
	for x=0,1000,100 do
		love.graphics.line(vx(x),vy(-5), vx(x),vy(5))
	end
	love.graphics.setColor(0,1,0)
	for _,y in ipairs(Box_heights) do
		love.graphics.line(vx(0), vy(y), vx(10), vy(y))
	end
	for _,obj in ipairs(Surface) do
		love.graphics.setColor(obj.r or 0, obj.g or 0, obj.b or 0)
		if obj.type == 'rectangle' then
			love.graphics.rectangle(obj.drawmode or 'fill', vx(obj.x),vy(obj.y), scale(obj.w),scale(obj.h))
		elseif obj.type == 'line' then
			if obj.saved_zoom ~= Viewport.zoom or obj.saved_x ~= Viewport.x or obj.saved_y ~= Viewport.y then
				obj.saved_zoom = Viewport.zoom
				obj.saved_x = Viewport.x
				obj.saved_y = Viewport.y
				obj.zdata = {}
				for i=1,#obj.data,2 do
					table.insert(obj.zdata, vx(obj.data[i]))
					table.insert(obj.zdata, vy(obj.data[i+1]))
				end
			end
			love.graphics.line(unpack(obj.zdata))
		elseif obj.type == 'circle' then
			love.graphics.circle(obj.drawmode or 'fill', vx(obj.x), vy(obj.y), scale(obj.radius))
		elseif obj.type == 'arc' then
			love.graphics.arc(obj.drawmode or 'line', obj.arctype or 'open', vx(obj.x), vy(obj.y), scale(obj.radius), obj.angle1, obj.angle2, obj.segments)
		elseif obj.type == 'ellipse' then
			love.graphics.ellipse(obj.drawmode or 'fill', vx(obj.x), vy(obj.y), scale(obj.radiusx), scale(obj.radiusy))
		elseif obj.type == 'bezier' then
			if obj.saved_zoom ~= Viewport.zoom or obj.saved_x ~= Viewport.x or obj.saved_y ~= Viewport.y then
				obj.saved_zoom = Viewport.zoom
				obj.saved_x = Viewport.x
				obj.saved_y = Viewport.y
				zdata = {}
				for i=1,#obj.data,2 do
					table.insert(zdata, vx(obj.data[i]))
					table.insert(zdata, vy(obj.data[i+1]))
				end
				obj.zdata = love.math.newBezierCurve(zdata):render()
			end
			love.graphics.line(unpack(obj.zdata))
		elseif obj.type == 'text' then
			local scaled_fontsize = scale(obj.fontsize or 20)
			if obj.saved_zoom ~= Viewport.zoom or obj.saved_x ~= Viewport.x or obj.saved_y ~= Viewport.y or obj.scaled_fontsize ~= scaled_fontsize then
				obj.saved_zoom = Viewport.zoom
				obj.saved_x = Viewport.x
				obj.saved_y = Viewport.y
				obj.scaled_fontsize = scaled_fontsize
print('setting font', scaled_fontsize)
				love.graphics.setFont(font(scaled_fontsize))
				obj.text = love.graphics.newText(love.graphics.getFont(), obj.data)
				initialize_editor(obj)
			end
			if obj.w == nil then
				love.graphics.draw(obj.text, vx(obj.x), vy(obj.y))
			else
				edit.draw(obj.editor, obj.fg or {r=0,g=0,b=0}, not obj.show_cursor)
			end
		end
	end
end

File addition: 0307-manifest (----------)

[4.2]

{"Viewport":303,"Box_heights":277,"vy":8,"on.mouse_pressed":179,"to_text":180,"on.mouse_released":178,"A":305,"on.update":239,"parent":306,"on.keychord_pressed":200,"compute_layout":301,"clip_all":265,"box_height":297,"Cursor_node":172,"initialize_editor":300,"Page":296,"font":228,"on.code_changed":306,"scale":7,"on.textinput":177,"Surface":196,"on":1,"on.initialize":304,"on.draw":307,"clip":236,"vx":5}

File addition: 0306-on.code_changed (----------)

[4.2]

on.code_changed = function()
	print('code changed')
	A()  -- just in case we edited Page
end

File addition: 0306-manifest (----------)

[4.2]

{"Viewport":303,"Box_heights":277,"vy":8,"on.mouse_pressed":179,"to_text":180,"on.mouse_released":178,"A":305,"on.update":239,"parent":305,"on.keychord_pressed":200,"compute_layout":301,"clip_all":265,"box_height":297,"Cursor_node":172,"initialize_editor":300,"Page":296,"font":228,"on.code_changed":306,"scale":7,"on.textinput":177,"Surface":196,"on":1,"on.initialize":304,"on.draw":293,"clip":236,"vx":5}

File addition: 0305-manifest (----------)

[4.2]

{"Viewport":303,"Box_heights":277,"vy":8,"on.mouse_pressed":179,"to_text":180,"on.mouse_released":178,"A":305,"on.update":239,"parent":304,"on.keychord_pressed":200,"compute_layout":301,"clip_all":265,"box_height":297,"Cursor_node":172,"initialize_editor":300,"Page":296,"font":228,"on.code_changed":299,"scale":7,"on.textinput":177,"Surface":196,"on":1,"on.initialize":304,"on.draw":293,"clip":236,"vx":5}

File addition: 0305-A (----------)

[4.2]

A = function()
	-- translate Page to Surface
	while #Surface > 3 do table.remove(Surface) end  -- HACK
	compute_layout(Page, Page.x,Page.y, Surface)
end

File addition: 0304-on.initialize (----------)
[4.2]
```
on.initialize = function()
	on.code_changed()
end
```

File addition: 0304-manifest (----------)

[4.2]

{"Viewport":303,"Box_heights":277,"vy":8,"on.mouse_pressed":179,"to_text":180,"on.mouse_released":178,"on.update":239,"parent":303,"on.keychord_pressed":200,"compute_layout":301,"clip_all":265,"box_height":297,"Cursor_node":172,"initialize_editor":300,"Page":296,"font":228,"on.code_changed":299,"scale":7,"on.textinput":177,"Surface":196,"on":1,"on.initialize":304,"on.draw":293,"clip":236,"vx":5}

File addition: 0303-manifest (----------)

[4.2]

{"Viewport":303,"Box_heights":277,"vy":8,"on.mouse_pressed":179,"to_text":180,"on.mouse_released":178,"on.update":239,"parent":302,"on.keychord_pressed":200,"compute_layout":301,"box_height":297,"Cursor_node":172,"initialize_editor":300,"Page":296,"font":228,"on.code_changed":299,"scale":7,"on.textinput":177,"Surface":196,"on":1,"clip_all":265,"on.draw":293,"clip":236,"vx":5}

File addition: 0303-Viewport (----------)

[4.2]

Viewport = {x=-50, y=-50, w=800,h=600, zoom=1.0}

File addition: 0302-manifest (----------)

[4.2]

{"Viewport":302,"Box_heights":277,"vy":8,"on.mouse_pressed":179,"to_text":180,"on.mouse_released":178,"on.update":239,"parent":301,"on.keychord_pressed":200,"compute_layout":301,"box_height":297,"Cursor_node":172,"initialize_editor":300,"Page":296,"font":228,"on.code_changed":299,"scale":7,"on.textinput":177,"Surface":196,"on":1,"clip_all":265,"on.draw":293,"clip":236,"vx":5}

File addition: 0302-Viewport (----------)

[4.2]

Viewport = {x=-50, y=-50, w=800,h=600, zoom=1.2}

File addition: 0301-manifest (----------)

[4.2]

{"Viewport":298,"Box_heights":277,"vy":8,"on.mouse_pressed":179,"to_text":180,"on.mouse_released":178,"on.update":239,"parent":300,"on.keychord_pressed":200,"compute_layout":301,"box_height":297,"Cursor_node":172,"initialize_editor":300,"Page":296,"font":228,"on.code_changed":299,"scale":7,"on.textinput":177,"Surface":196,"on":1,"clip_all":265,"on.draw":293,"clip":236,"vx":5}

File addition: 0301-compute_layout (----------)

[4.2]

compute_layout = function(node, x,y, nodes_to_render)
	-- append to nodes_to_render flattened instructions to render a hierarchy of nodes
	-- return x,y rendered until (surface coordinates)
	if node.type == 'text' then
		-- leaf node containing raw text
		node.x = x
		node.y = y
		-- render background if necessary
		local node_to_render
		if node.bg then
			node_to_render = {type='rectangle', r=node.bg.r, g=node.bg.g, b=node.bg.b, x=node.x, y=node.y}
			table.insert(nodes_to_render, node_to_render)
		end
		-- render contents
		if node.width then
			node.w = node.width
		else
			local scaled_fontsize = scale(node.fontsize or 20)
			node.w = 0
			for i,s in ipairs(node.data) do
				local text = love.graphics.newText(font(scaled_fontsize), node.data)
				local width = text:getWidth()
				print(node.data[i], 'has width', width)
				if node.w < width then node.w = width end
			end
		end
		initialize_editor(node)
	    node.h = box_height(node)
		table.insert(nodes_to_render, node)
		if node_to_render then
			node_to_render.w = node.w
			node_to_render.h = node.h
		end
	elseif node.type == 'rows' then
		node.x = x
		node.y = y
		local node_to_render
		if node.bg then
			node_to_render = {type='rectangle', r=node.bg.r, g=node.bg.g, b=node.bg.b, x=node.x, y=node.y}
			table.insert(nodes_to_render, node_to_render)
		end
		-- lay out children top to bottom
		local subx,suby = x,y
		local w,h = 0,0
		local subnodes
		for _,child in ipairs(node.data) do
			if child.margin then
				suby = suby+child.margin
				h = h+child.margin
			end
			subx,suby = compute_layout(child, x,suby, nodes_to_render)
			if w < child.w then
				w = child.w
			end
			h = h+child.h
		end
		node.w = w
		node.h = h
		if node_to_render then
			node_to_render.w = w
			node_to_render.h = h
		end
	elseif node.type == 'cols' then
		node.x = x
		node.y = y
		-- lay out children left to right
		local node_to_render
		if node.bg then
			node_to_render = {type='rectangle', r=node.bg.r, g=node.bg.g, b=node.bg.b, x=node.x, y=node.y}
			table.insert(nodes_to_render, node_to_render)
		end
		local subx,suby = x,y
		local w,h = 0,0
		for _,child in ipairs(node.data) do
			if child.margin then
				subx = subx+child.margin
				w = w+child.margin
			end
			subx,suby = compute_layout(child, subx,y, nodes_to_render)
			w = w + child.w
			if h < child.h then
				h = child.h
			end
		end
		node.w = w
		node.h = h
		if node_to_render then
			node_to_render.w = w
			node_to_render.h = h
		end
	end
	return x+node.w,y+node.h
end

File addition: 0300-manifest (----------)

[4.2]

{"Viewport":298,"Box_heights":277,"vy":8,"on.mouse_pressed":179,"to_text":180,"on.mouse_released":178,"on.update":239,"parent":299,"on.keychord_pressed":200,"compute_layout":235,"box_height":297,"Cursor_node":172,"initialize_editor":300,"Page":296,"font":228,"on.code_changed":299,"scale":7,"on.textinput":177,"Surface":196,"on":1,"clip_all":265,"on.draw":293,"clip":236,"vx":5}

File addition: 0300-initialize_editor (----------)

[4.2]

initialize_editor = function(obj)
	if obj.w then
		-- use an editor to wrap the text
		local scaled_fontsize = scale(obj.fontsize or 20)
		local scaled_lineheight = math.floor(scaled_fontsize*1.3)
		print('init', obj.data[1], obj.w)
		obj.editor = edit.initialize_state(vy(obj.y), vx(obj.x), vx(obj.x+obj.w), scaled_fontsize, scaled_lineheight)
		obj.editor.lines = load_array(obj.data)
		Text.redraw_all(obj.editor)
	end
end

File addition: 0299-on.code_changed (----------)

[4.2]

on.code_changed = function()
	while #Surface > 3 do
		table.remove(Surface)
	end
	print('code changed', Page.x,Page.y)
	compute_layout(Page, Page.x,Page.y, Surface)  -- just in case we edited Page
end

File addition: 0299-manifest (----------)

[4.2]

{"Viewport":298,"Box_heights":277,"vy":8,"on.mouse_pressed":179,"to_text":180,"on.mouse_released":178,"on.update":239,"parent":298,"on.keychord_pressed":200,"compute_layout":235,"box_height":297,"Cursor_node":172,"initialize_editor":290,"Page":296,"font":228,"on.code_changed":299,"scale":7,"on.textinput":177,"Surface":196,"on":1,"clip_all":265,"on.draw":293,"clip":236,"vx":5}

reorg: be much more deliberate about mutable state

Dependencies

In channels

Change contents

Replacement in head at line 1 [3.10815]

File addition: 0316-manifest (----------)

File addition: 0316-B (----------)

File addition: 0315-on.update (----------)

File addition: 0315-manifest (----------)

File addition: 0314-manifest (----------)

File addition: 0314-B (----------)

File addition: 0313-manifest (----------)

File addition: 0313-initialize_editor (----------)

File addition: 0312-manifest (----------)

File addition: 0312-Page (----------)

File addition: 0311-on.keychord_pressed (----------)

File addition: 0311-manifest (----------)

File addition: 0310-on.draw (----------)

File addition: 0310-manifest (----------)

File addition: 0309-manifest (----------)

File addition: 0309-A (----------)

File addition: 0308-manifest (----------)

File addition: 0308-B (----------)

File addition: 0307-on.draw (----------)

File addition: 0307-manifest (----------)

File addition: 0306-on.code_changed (----------)

File addition: 0306-manifest (----------)

File addition: 0305-manifest (----------)

File addition: 0305-A (----------)

File addition: 0304-on.initialize (----------)

File addition: 0304-manifest (----------)

File addition: 0303-manifest (----------)

File addition: 0303-Viewport (----------)

File addition: 0302-manifest (----------)

File addition: 0302-Viewport (----------)

File addition: 0301-manifest (----------)

File addition: 0301-compute_layout (----------)

File addition: 0300-manifest (----------)

File addition: 0300-initialize_editor (----------)

File addition: 0299-on.code_changed (----------)

File addition: 0299-manifest (----------)