Layer Selection Buttons - MohoScripts.com

-- **************************************************
-- Provide Moho with the name of this script object
-- **************************************************

ScriptName = "SZ_LayerSelectionButtons"

SZ_LayerSelectionButtons = {}

-- **************************************************
-- Settings
-- **************************************************

SZ_LayerSelectionButtons.numberOfButtons = 8
SZ_LayerSelectionButtons.showLayer = true

-- **************************************************
-- General information about this script
-- **************************************************

function SZ_LayerSelectionButtons:Name()
	return self:Localize("name")
end

function SZ_LayerSelectionButtons:Version()
	return "1.0"
end

function SZ_LayerSelectionButtons:Description()
	return self:Localize("description")
end

function SZ_LayerSelectionButtons:Creator()
	return "Stan from 2danimator.ru"
end

function SZ_LayerSelectionButtons:UILabel()
	return self:Localize("label")
end

function SZ_LayerSelectionButtons:ResetPrefs()
	self.resetPrefs = true
end


-- **************************************************
-- Recurring values
-- **************************************************

SZ_LayerSelectionButtons.layerButtons = {}
SZ_LayerSelectionButtons.layerVisibilityCheckBoxes = {}
SZ_LayerSelectionButtons.layerTimelineCheckBoxes = {}
SZ_LayerSelectionButtons.bindingKey = "SZ_LayerSelectionButtons_boundTo_"
SZ_LayerSelectionButtons.boundLayers = {}
SZ_LayerSelectionButtons.resetPrefs = false


-- **************************************************
-- Relevance and Availability
-- **************************************************

function SZ_LayerSelectionButtons:IsRelevant(moho)
	return true
end


function SZ_LayerSelectionButtons:IsEnabled(moho)
	return true
end


-- **************************************************
-- The guts of this script
-- **************************************************


function SZ_LayerSelectionButtons:OnMouseDown(moho, mouseEvent)
	
end



-- **************************************************
-- SZ_LayerSelectionButtons options - create and respond to tool's UI
-- **************************************************

SZ_LayerSelectionButtons.SHOW_LAYER = MOHO.MSG_BASE
SZ_LayerSelectionButtons.RESET = MOHO.MSG_BASE + 1
SZ_LayerSelectionButtons.BUTTON_MSG_BASE = MOHO.MSG_BASE + 100
SZ_LayerSelectionButtons.BUTTON_ALT_MSG_BASE = MOHO.MSG_BASE+200
SZ_LayerSelectionButtons.CHECKBOX_VISIBILITY_MSG_BASE = MOHO.MSG_BASE+300
SZ_LayerSelectionButtons.CHECKBOX_TIMELINE_MSG_BASE = MOHO.MSG_BASE+400


function SZ_LayerSelectionButtons:DoLayout(moho, layout)
	for i=1, self.numberOfButtons do
		local button = LM.GUI.Button(self:Localize("emptyButton"), self.BUTTON_MSG_BASE + i)
		button:SetAlternateMessage(self.BUTTON_ALT_MSG_BASE + i)
		self.layerButtons[i] = button
		layout:AddChild(self.layerButtons[i])
		
		local visibilityCheckbox = LM.GUI.CheckBox("", self.CHECKBOX_VISIBILITY_MSG_BASE + i)
		visibilityCheckbox:SetToolTip(self:Localize("layerVisibility"))
		self.layerVisibilityCheckBoxes[i] = visibilityCheckbox
		layout:AddChild(self.layerVisibilityCheckBoxes[i])
	
		layout:AddPadding(-16)
		
		local timelineCheckbox = LM.GUI.CheckBox("", self.CHECKBOX_TIMELINE_MSG_BASE + i)
		timelineCheckbox:SetToolTip(self:Localize("timelineVisibility"))
		self.layerTimelineCheckBoxes[i] = timelineCheckbox
		layout:AddChild(self.layerTimelineCheckBoxes[i])
		
		layout:AddPadding(10)
		
		self:ClearButton(i)
	end
	layout:AddPadding(-26)
	layout:AddChild(LM.GUI.Divider(true), LM.GUI.ALIGN_FILL, 0)
	layout:AddPadding(0)
	self.showLayerCheckbox = LM.GUI.CheckBox(self:Localize("showLayer"), self.SHOW_LAYER)
	layout:AddChild(self.showLayerCheckbox)
	layout:AddChild(LM.GUI.Button(self:Localize("reset"), self.RESET))
end

function SZ_LayerSelectionButtons:UpdateWidgets(moho)
	if self.resetPrefs then
		self:Reset(moho)
		self.resetPrefs = false
	end
	
	self.showLayerCheckbox:SetValue(self.showLayer)
	
	local count = 0
	repeat
		local layer = moho.document:LayerByAbsoluteID(count)
		if layer then
			count = count + 1
			local uuid = layer:UUID()
			local scriptData = layer:ScriptData()
			if scriptData:HasKey(self.bindingKey) then
				local buttonNumber = scriptData:GetInt(self.bindingKey)
				-- clear the same key from other layers, to avoid issues when layer is duplicated
				local count2 = count
				repeat
					local layer2 = moho.document:LayerByAbsoluteID(count2)
					if layer2 then
						count2 = count2 + 1
						if layer2 ~= layer then
							local scriptData2 = layer2:ScriptData()
							if scriptData2:HasKey(self.bindingKey) and scriptData2:GetInt(self.bindingKey) == buttonNumber then
								scriptData2:Remove(self.bindingKey)
							end
						end
					end
				until not layer2
				self:BindButtonToLayer(buttonNumber, layer)
			else
				self.boundLayers[uuid] = nil
			end
		end
	until not layer
end

function SZ_LayerSelectionButtons:HandleMessage(moho, view, msg)
	for i = 1, self.numberOfButtons do
		if msg == self.BUTTON_MSG_BASE + i then
			self:SelectBoundLayer(moho, i)
		elseif msg == self.BUTTON_ALT_MSG_BASE + i then
			local uuid = moho.layer:UUID()
			if self.boundLayers[uuid] ~= i then
				if self.boundLayers[uuid] then
					self:ClearButton(self.boundLayers[uuid])
				end
				self:UnbindAllLayersFromButton(moho, i)
				local scriptData = moho.layer:ScriptData()
				scriptData:Set(self.bindingKey, i)
				self:BindButtonToLayer(i, moho.layer)
			end
		elseif msg == self.CHECKBOX_VISIBILITY_MSG_BASE + i then
			self:SetLayerVisibility(moho, i, self.layerVisibilityCheckBoxes[i]:Value())
		elseif msg == self.CHECKBOX_TIMELINE_MSG_BASE + i then
			self:SetLayerTimelineVisibility(moho, i, self.layerTimelineCheckBoxes[i]:Value())
		end
	end		
	if msg == self.RESET then
		self:Reset(moho)
	elseif msg == self.SHOW_LAYER then
		self.showLayer = self.showLayerCheckbox:Value()
	end
end

function SZ_LayerSelectionButtons:UnbindAllLayersFromButton(moho, buttonNumber)
	local count = 0
	repeat
		local layer = moho.document:LayerByAbsoluteID(count)
		if layer then
			count = count + 1
			local scriptData = layer:ScriptData()
			if scriptData:HasKey(self.bindingKey) and scriptData:GetInt(self.bindingKey) == buttonNumber then
				scriptData:Remove(self.bindingKey)
			end
		end
	until not layer	
end

function SZ_LayerSelectionButtons:SetLayerVisibility(moho, buttonNumber, value)
	local count = 0
	repeat
		local layer = moho.document:LayerByAbsoluteID(count)
		if layer then
			count = count + 1
			local scriptData = layer:ScriptData()
			if scriptData:HasKey(self.bindingKey) and scriptData:GetInt(self.bindingKey) == buttonNumber then
				layer:SetVisible(value)
				moho:UpdateUI()
				break
			end
		end
	until not layer
end

function SZ_LayerSelectionButtons:SetLayerTimelineVisibility(moho, buttonNumber, value)
	local count = 0
	repeat
		local layer = moho.document:LayerByAbsoluteID(count)
		if layer then
			count = count + 1
			local scriptData = layer:ScriptData()
			if scriptData:HasKey(self.bindingKey) and scriptData:GetInt(self.bindingKey) == buttonNumber then
				layer:SetShownOnTimeline(value)
				moho:UpdateUI()
				break
			end
		end
	until not layer
end

function SZ_LayerSelectionButtons:SelectBoundLayer(moho, buttonNumber)
	local count = 0
	repeat
		local layer = moho.document:LayerByAbsoluteID(count)
		if layer then
			count = count + 1
			local scriptData = layer:ScriptData()
			if scriptData:HasKey(self.bindingKey) and scriptData:GetInt(self.bindingKey) == buttonNumber then
				moho:SetSelLayer(layer, false, true)
				-- These are the methods I tried, and none of them updates the tool panel:
					-- moho:UpdateUI()				
					-- moho.view:DrawMe()
					-- moho.view:RefreshView()
					-- layer:UpdateCurFrame(true)
					-- MOHO.Redraw()
					-- moho:UpdateSelectedChannels()
					-- moho:UpdateBonePointSelection()
				-- That's why we have to do some dark magic here instead:
				local sacrificialLayer = moho:CreateNewLayer(MOHO.LT_UNKNOWN)
				moho:DeleteLayer(sacrificialLayer)
				
				if self.showLayer then
					moho:ShowLayerInLayersPalette(layer)
				end
				break
			end
		end
	until not layer
end

function SZ_LayerSelectionButtons:ClearButton(buttonNumber)
	self.layerButtons[buttonNumber]:SetLabel(self:Localize("emptyButton"), false)
	self.layerVisibilityCheckBoxes[buttonNumber]:SetValue(false);
	self.layerVisibilityCheckBoxes[buttonNumber]:Enable(false);
	self.layerTimelineCheckBoxes[buttonNumber]:SetValue(false);
	self.layerTimelineCheckBoxes[buttonNumber]:Enable(false);
end

function SZ_LayerSelectionButtons:BindButtonToLayer(buttonNumber, layer)
	self.boundLayers[layer:UUID()] = buttonNumber
	self.layerButtons[buttonNumber]:SetLabel(layer:Name(), false)
	self.layerVisibilityCheckBoxes[buttonNumber]:Enable(true)
	self.layerVisibilityCheckBoxes[buttonNumber]:SetValue(layer:IsVisible())
	self.layerTimelineCheckBoxes[buttonNumber]:Enable(true)
	self.layerTimelineCheckBoxes[buttonNumber]:SetValue(layer:IsShownOnTimeline())
end

function SZ_LayerSelectionButtons:Reset(moho)
	self.boundLayers = {}
	local count = 0
	repeat
		local layer = moho.document:LayerByAbsoluteID(count)
		if layer then
			count = count + 1
			local scriptData = layer:ScriptData()
			if scriptData:HasKey(self.bindingKey) then
				scriptData:Remove(self.bindingKey)
			end
		end
	until not layer
	for i=1, self.numberOfButtons do
		self:ClearButton(i)
	end
end

-- Tool localization

function SZ_LayerSelectionButtons:Localize(text)
	local fileWord = MOHO.Localize("/Menus/File/File=File")
	
	local phrase = {}
	
	phrase["name"] = "Layer Selection Buttons"
	phrase["description"] = "Select a layer by pressing a button. Alt+click a button to assign to the current layer."
	phrase["label"] = "Layer Selection Buttons"
	phrase["emptyButton"] = "        —        "
	phrase["reset"] = "Reset"
	phrase["layerVisibility"] = "Layer Visibility"
	phrase["timelineVisibility"] = "Timeline Visibility"
	phrase["showLayer"] = "Show layer"
		
	if fileWord == "Файл" then
		phrase["name"] = "Кнопки выбора слоев"
		phrase["description"] = "Выбирает слой по клику на кнопку. Чтобы назначить текущий слой на кнопку, кликните на нее удерживая Alt."
		phrase["label"] = "Кнопки выбора слоев"
		phrase["reset"] = "Сбросить"
		phrase["layerVisibility"] = "Видимость слоя"
		phrase["timelineVisibility"] = "Видимость в таймлайне"
		phrase["showLayer"] = "Показать слой"
	end
	
	return phrase[text];
end
Layer Selection Buttons
Listed

Author: Stan View Script
Script type: Tool
Uploaded: Jan 10 2021, 19:18
Allows you to assign any layer in the project to a button for quick selection and visibility control.
See also:Â Bone Selection ButtonsÂ tool.
This script, and all other scripts on this site are distributed as free software under the GNU General Public License 3.0 or later.
Download for Install Script command Download as simple ZIP Download Lua file
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Layer Selection Buttons Listed

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Layer Selection Buttons
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