example.script

local JEDI = { "Luke", "Obi-Wan", "Yoda" }
local SITH = { "Maul", "Vader", "Palpatine" }


local function set_style()
	imgui.set_style_window_rounding(6)
	imgui.set_style_frame_rounding(3)
	imgui.set_style_scrollbar_rounding(10)
	imgui.set_style_color(imgui.ImGuiCol_Text, 0.90, 0.90, 0.90, 0.90)
	imgui.set_style_color(imgui.ImGuiCol_TextDisabled, 0.60, 0.60, 0.60, 1.00)
	imgui.set_style_color(imgui.ImGuiCol_WindowBg, 0.09, 0.09, 0.15, 1.00)
	imgui.set_style_color(imgui.ImGuiCol_PopupBg, 0.05, 0.05, 0.10, 0.85)
	imgui.set_style_color(imgui.ImGuiCol_Border, 0.70, 0.70, 0.70, 0.65)
	imgui.set_style_color(imgui.ImGuiCol_BorderShadow, 0.00, 0.00, 0.00, 0.00)
	imgui.set_style_color(imgui.ImGuiCol_FrameBg, 0.00, 0.00, 0.01, 1.00)
	imgui.set_style_color(imgui.ImGuiCol_FrameBgHovered, 0.90, 0.80, 0.80, 0.40)
	imgui.set_style_color(imgui.ImGuiCol_FrameBgActive, 0.90, 0.65, 0.65, 0.45)
	imgui.set_style_color(imgui.ImGuiCol_TitleBg, 0.00, 0.00, 0.00, 0.83)
	imgui.set_style_color(imgui.ImGuiCol_TitleBgCollapsed, 0.40, 0.40, 0.80, 0.20)
	imgui.set_style_color(imgui.ImGuiCol_TitleBgActive, 0.00, 0.00, 0.00, 0.87)
	imgui.set_style_color(imgui.ImGuiCol_MenuBarBg, 0.01, 0.01, 0.02, 0.80)
	imgui.set_style_color(imgui.ImGuiCol_ScrollbarBg, 0.20, 0.25, 0.30, 0.60)
	imgui.set_style_color(imgui.ImGuiCol_ScrollbarGrab, 0.55, 0.53, 0.55, 0.51)
	imgui.set_style_color(imgui.ImGuiCol_ScrollbarGrabHovered, 0.56, 0.56, 0.56, 1.00)
	imgui.set_style_color(imgui.ImGuiCol_ScrollbarGrabActive, 0.56, 0.56, 0.56, 0.91)
	imgui.set_style_color(imgui.ImGuiCol_CheckMark, 0.90, 0.90, 0.90, 0.83)
	imgui.set_style_color(imgui.ImGuiCol_SliderGrab, 0.70, 0.70, 0.70, 0.62)
	imgui.set_style_color(imgui.ImGuiCol_SliderGrabActive, 0.30, 0.30, 0.30, 0.84)
	imgui.set_style_color(imgui.ImGuiCol_Button, 0.48, 0.72, 0.89, 0.49)
	imgui.set_style_color(imgui.ImGuiCol_ButtonHovered, 0.50, 0.69, 0.99, 0.68)
	imgui.set_style_color(imgui.ImGuiCol_ButtonActive, 0.80, 0.50, 0.50, 1.00)
	imgui.set_style_color(imgui.ImGuiCol_Header, 0.30, 0.69, 1.00, 0.53)
	imgui.set_style_color(imgui.ImGuiCol_HeaderHovered, 0.44, 0.61, 0.86, 1.00)
	imgui.set_style_color(imgui.ImGuiCol_HeaderActive, 0.38, 0.62, 0.83, 1.00)
	imgui.set_style_color(imgui.ImGuiCol_ResizeGrip, 1.00, 1.00, 1.00, 0.85)
	imgui.set_style_color(imgui.ImGuiCol_ResizeGripHovered, 1.00, 1.00, 1.00, 0.60)
	imgui.set_style_color(imgui.ImGuiCol_ResizeGripActive, 1.00, 1.00, 1.00, 0.90)
	imgui.set_style_color(imgui.ImGuiCol_PlotLines, 1.00, 1.00, 1.00, 1.00)
	imgui.set_style_color(imgui.ImGuiCol_PlotLinesHovered, 0.90, 0.70, 0.00, 1.00)
	imgui.set_style_color(imgui.ImGuiCol_PlotHistogram, 0.90, 0.70, 0.00, 1.00)
	imgui.set_style_color(imgui.ImGuiCol_PlotHistogramHovered, 1.00, 0.60, 0.00, 1.00)
	imgui.set_style_color(imgui.ImGuiCol_TextSelectedBg, 0.00, 0.00, 1.00, 0.35)
end

local function makeData(self)
	self.values_line = {}
	self.values_hist = {}
	for i=1, 60 do 
		local data = math.random(1, 30)
		self.values_hist[data] = (self.values_hist[data] or 0) + 1
		table.insert(self.values_line, data)
	end
end

function init(self)
	self.counter = 0
	self.show_demo_window = false
	self.show_close_window = false
	self.show_live_data = false
	
	imgui.set_ini_filename()
	set_style()
	local scale = 2
	imgui.scale_all_sizes(scale)

	self.values_line = {}
	self.values_hist = {}
	makeData(self)

	local fontsize 		= 12.0 * scale
	local fontsizebase 	= 12.0 * scale
	self.fonts 	= {}
	local regular_data, error = sys.load_resource("/example/bundle/fonts/Montserrat-Regular.ttf")
	self.fonts["Regular"] = imgui.font_add_ttf_data(regular_data, #regular_data, fontsize, fontsizebase)
	local bold_data, error = sys.load_resource("/example/bundle/fonts/Montserrat-Bold.ttf")
	self.fonts["Bold"] = imgui.font_add_ttf_data(bold_data, #bold_data, fontsize, fontsizebase)
	local italic_data, error = sys.load_resource("/example/bundle/fonts/Montserrat-Italic.ttf")
	self.fonts["Italic"] = imgui.font_add_ttf_data(italic_data, #italic_data, fontsize, fontsizebase)
	local bolditalic_data, error = sys.load_resource("/example/bundle/fonts/Montserrat-BoldItalic.ttf")
	self.fonts["BoldItalic"] = imgui.font_add_ttf_data(bolditalic_data, #bolditalic_data, fontsize, fontsizebase)

	-- Resource based Image 
	local img1_data, error = sys.load_resource("/example/bundle/images/image1.png") 
	self.image1 = imgui.image_load_data("image1", img1_data, #img1_data)

	-- File based Image can be used on desktop platforms
	-- self.image1 = imgui.image_load("example/images/image1.png")
		
	local img2_data, error = sys.load_resource("/example/bundle/images/image2.png") 
	self.image2 = imgui.image_load_data("image2", img2_data, #img2_data)
end

local function close_window(self)
	local flags = imgui.WINDOWFLAGS_NOMOVE
	local full, open = imgui.begin_window("Close window", true, flags)
	if full then
		imgui.text("You can close this window, but cannot move")
	end
	imgui.end_window()
	
	if not open then
		self.show_close_window = false
	end
end

local function update_tab1(self)
	imgui.text("This is some useful text.")
	local changed, checked = imgui.checkbox("Demo window", self.show_demo_window)
	if changed then
		self.show_demo_window = checked
	end

	imgui.separator()

	if imgui.button("Button") then
		self.counter = self.counter + 1
	end
	imgui.same_line()
	imgui.text(("counter = %d"):format(self.counter))

	imgui.separator()

	local pos = go.get_position("object")
	local changed, x, y, z = imgui.input_float3("pos", pos.x, pos.y, pos.z)
	if changed then
		pos.x = x
		pos.y = y
		pos.z = z
		go.set_position(pos, "object")
	end

	local changed, x, y, z = imgui.input_int4("posi", pos.x, pos.y, pos.z, 0)
	if changed then
		pos.x = x
		pos.y = y
		pos.z = z
		go.set_position(pos, "object")
	end
	
	local changed, int = imgui.input_int("test int", self.int or 0)
	if changed then
		self.int = int
	end

	if imgui.button("open window with close button") then
		self.show_close_window = true;
	end

	imgui.begin_table("table_example", 3)
	imgui.table_setup_column("FIRST NAME")
	imgui.table_setup_column("LAST NAME")
	imgui.table_setup_column("AGE")
	imgui.table_headers_row()

	imgui.table_next_row()
	imgui.table_next_column()
	imgui.text("Bilbo")
	imgui.table_next_column()
	imgui.text("Baggins")
	imgui.table_next_column()
	imgui.text("129")
	
	imgui.table_next_row()
	imgui.table_next_column()
	imgui.text("Frodo")
	imgui.table_next_column()
	imgui.text("Baggins")
	imgui.table_next_column()
	imgui.text("51")
	
	imgui.end_table()
end

local function update_tab2(self)
	local selected = imgui.tree_node("root")
	if selected then
		imgui.bullet()
		self.foo_selected = imgui.selectable("foo", self.foo_selected)
		imgui.bullet()
		self.bar_selected = imgui.selectable("bar", self.bar_selected)
		imgui.tree_pop()
	end


	-- this is the old way of creating combo boxes
	-- it still exists in the ImGUI API since it's a quick way ti create a combo box
	local changed, jedi = imgui.combo("Jedi##array", self.selected_jedi or 1, JEDI)
	if changed then
		self.selected_jedi = jedi
	end

	-- new way of creating combo boxes with a begin and end function
	if imgui.begin_combo("Jedi##selectable", "Select a Jedi") then
		for i=1,#JEDI do
			if imgui.selectable(JEDI[i], i == (self.selected_jedi or 1)) then
				self.selected_jedi = i
			end
		end
		imgui.end_combo()
	end

	imgui.separator()

	local testdbl = self.testdbl or 0
	local changed, value = imgui.input_double("test double", testdbl, 0.0001, 0.01, 5)
	if changed then
		self.testdbl = value
	end
	
	local progress = self.progress or 0
	local changed, p = imgui.input_float("progress float", progress, 0.01, 1.0, 3)
	if changed then
		self.progress = p
		progress = p
	end

	imgui.separator()
	imgui.draw_progress(progress, -1, 0.0)

	imgui.push_id("first")
	if imgui.button("Same name") then
		pprint("first same button")
	end
	imgui.pop_id()

	imgui.push_id("second")
	if imgui.button("Same name") then
		pprint("second same button")
	end
	imgui.pop_id()
end

local function update_tab3(self)

	local changed, checked = imgui.checkbox("Live Data", self.show_live_data)
	if changed then
		self.show_live_data = checked
	end

	if(self.show_live_data == true) then 
		makeData(self)
	end
	imgui.separator()
	
	imgui.text_colored(" Data Plot ", 1, 0, 0, 1 )
	imgui.plot_lines( "Data", 0, 150, 40, self.values_line )

	imgui.separator()
	
	imgui.text_colored(" Data Histogram ", 0, 1, 0, 1 )
	imgui.plot_histogram( "Histogram", 0, 150, 40, self.values_hist )

	imgui.separator()
end

-- Example images and font styles
local function update_tab4(self)

	imgui.font_push(self.fonts["Regular"])
	imgui.text_colored("Example Text Regular", 1, 1, 1, 1 )
	imgui.font_pop()
	imgui.separator()
	imgui.font_push(self.fonts["Bold"])
	imgui.text_colored("Example Text Bold", 1, 1, 1, 1 )
	imgui.font_pop()
	imgui.separator()
	imgui.font_push(self.fonts["Italic"])
	imgui.text_colored("Example Text Italic", 1, 1, 1, 1 )
	imgui.font_pop()
	imgui.separator()
	imgui.font_push(self.fonts["BoldItalic"])
	imgui.text_colored("Example Text Bold Italic", 1, 1, 1, 1 )
	imgui.font_pop()
	imgui.separator()
	
	imgui.font_push(self.fonts["Regular"])
	imgui.text_colored("image stretched", 1, 1, 1, 1 )
	imgui.image_add(self.image1, 150,20)

	imgui.text_colored("image original aspect", 1, 1, 1, 1 )
	imgui.image_add(self.image2, 150,150)
	imgui.font_pop()
end


local function update_tab5(self)
	if imgui.tree_node("Jedi vs Sith") then
		imgui.text("Right click for some info")
		for i=1,#JEDI do
			imgui.tree_node(JEDI[i], imgui.TREENODE_LEAF + imgui.TREENODE_NO_TREE_PUSH_ON_OPEN)
			if imgui.begin_dragdrop_source(imgui.DROPFLAGS_SOURCEALLOWNULLID) then
				imgui.set_dragdrop_payload("jedi", JEDI[i])
				imgui.end_dragdrop_source()
			end
			if imgui.begin_popup_context_item("jedipop" .. i) then
				imgui.text("This is a Jedi")
				imgui.end_popup()
			end
		end
		for i=1,#SITH do
			imgui.tree_node(SITH[i], imgui.TREENODE_LEAF + imgui.TREENODE_NO_TREE_PUSH_ON_OPEN)
			if imgui.begin_dragdrop_source(imgui.DROPFLAGS_SOURCEALLOWNULLID) then
				imgui.set_dragdrop_payload("sith", SITH[i])
				imgui.end_dragdrop_source()
			end
			if imgui.begin_popup_context_item("sithpop" .. i) then
				imgui.text("This is a Sith")
				imgui.end_popup()
			end
		end
		imgui.tree_pop()
	end
	
	imgui.separator()
	
	imgui.text("Drop Jedi and Sith here")
	if imgui.begin_dragdrop_target() then
		if imgui.accept_dragdrop_payload("jedi") then
			self.counter = self.counter + 1
		elseif imgui.accept_dragdrop_payload("sith") then
			self.counter = self.counter - 1
		end
		imgui.end_dragdrop_target()
	end
	imgui.text("Counter " .. self.counter)
	
end


function update(self, dt)
	if self.show_demo_window then
		imgui.demo()
	end

	if self.show_close_window then
		close_window(self)
	end

	imgui.begin_window("Hello, world!")
	imgui.begin_tab_bar("tabs")

	local tab1_open = imgui.begin_tab_item("Tab1")
	if tab1_open then
		update_tab1(self)
		imgui.end_tab_item()
	end

	local tab2_open = imgui.begin_tab_item("Tab2")
	if tab2_open then
		update_tab2(self)
		imgui.end_tab_item()
	end

	local tab3_open = imgui.begin_tab_item("Tab3")
	if tab3_open then
		update_tab3(self)
		imgui.end_tab_item()
	end

	local tab4_open = imgui.begin_tab_item("Tab4")
	if tab4_open then
		update_tab4(self)
		imgui.end_tab_item()
	end

	local tab5_open = imgui.begin_tab_item("Tab5")
	if tab5_open then
		update_tab5(self)
		imgui.end_tab_item()
	end
		
	imgui.end_tab_bar()
	imgui.end_window()
end