Dear ImGui Getting Started

Dear ImGui for Gideros Mobile

Gideros Dear ImGui embedded Demo

require "ImGui"

local imgui = ImGui.new()
stage:addChild(imgui)
imgui:setClassicStyle()

function onEnterFrame(e)
	imgui:newFrame(e.deltaTime)

	imgui:showDemoWindow()

	imgui:render()
	imgui:endFrame()
end

stage:addEventListener(Event.ENTER_FRAME, onEnterFrame)

Your first Windows

require "ImGui"

application:setBackgroundColor(0x323232)

local imgui = ImGui.new()
stage:addChild(imgui)

local window01 = true -- this window can be closed
local windowdrawn = false -- boolean to hold our windows status

function onEnterFrame(e)
	-- 1. we start an ImGui frame
	imgui:newFrame(e.deltaTime)

	-- 2. we add some windows
	-- a window you can close
	if window01 then -- if window exists (not closed)
		window01, windowdrawn = imgui:beginWindow("window01", window01) -- title, isexpanded
		if windowdrawn then -- the variable is false when the window is collapsed
			-- its widgets
			imgui:text("Hello Dear ImGui!")
			imgui:newLine()
			imgui:textColored("This window can be moved, resized and closed!", 0x00ff7f, 1)
		end
		imgui:endWindow()
	end

	-- a window to re-open closed windows
	imgui:setNextWindowPos(32*8, 32*8) -- x, y
	imgui:beginWindow("CONTROL", nil, ImGui.WindowFlags_NoResize) -- title, no close, windows flags
	-- and its widgets
	imgui:text("click the button to re-open a closed window")
	if imgui:button("OPEN", 64, 16) then
		window01 = true
	end
	imgui:newLine()
	imgui:textColored("This window cannot be moved, resized or closed!", 0xffff7f, 1)
	-- end of our first window
	imgui:endWindow()

	-- 3. we end the ImGui frame and render to screen
	imgui:endFrame()
	imgui:render()
end

Start a Window at a given position

require "ImGui"

application:setBackgroundColor(0x323232)

local imgui = ImGui.new()
stage:addChild(imgui)

local window01 = true -- this window can be closed
local windowdrawn = false -- boolean to hold our windows status

local posx, posy = 32*8, 32*4 -- starting window position
local offsetx, offsety = 0, 0 -- new window position
local dragflag = false

function onEnterFrame(e)
	-- 1. we start ImGui
	imgui:newFrame(e.deltaTime)

	-- 2. we add some windows
	if window01 then -- if window exists (not closed)
		imgui:setNextWindowPos(posx, posy)
		window01, windowdrawn = imgui:beginWindow("window01", window01)
		-- update window new position
		local mouseClicked = imgui:isMouseClicked(KeyCode.MOUSE_LEFT)
		if not dragflag and mouseClicked and imgui:isWindowHovered() then
			dragflag = true
		end
		if imgui:isWindowFocused() and dragflag then
			local mx,my = imgui:getMousePos()
			local wx, wy = imgui:getWindowPos()
			if mouseClicked or imgui:isMouseReleased(KeyCode.MOUSE_LEFT) then
				offsetx, offsety = mx - wx, my - wy
			end
			if imgui:isMouseDragging(KeyCode.MOUSE_LEFT, 0) then
				posx = (mx - offsetx)
				posy = (my - offsety)
			else
				dragflag = false
			end
		end
		-- window widgets
		if windowdrawn then -- the variable is false when main window is collapsed
			imgui:text("Hello Dear ImGui!")
			imgui:newLine()
			imgui:textColored("This window can be moved, resized and closed!", 0x00ff7f, 1)
			imgui:text("its position is: "..posx..", "..posy)
		end
		imgui:endWindow()
	end

	-- 3. we end ImGui frame and render to screen
	imgui:endFrame()
	imgui:render()
end

stage:addEventListener(Event.ENTER_FRAME, onEnterFrame)

Dear ImGui

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