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Using wxWidgets from Elixir
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#!/usr/bin/env elixir | |
defmodule Canvas do | |
@behaviour :wx_object | |
@title "Canvas Example" | |
@size {600, 600} | |
def start_link() do | |
:wx_object.start_link(__MODULE__, [], []) | |
end | |
def init(args \\ []) do | |
wx = :wx.new | |
frame = :wxFrame.new(wx, -1, @title, size: @size) | |
:wxFrame.connect(frame, :size) | |
:wxFrame.connect(frame, :close_window) | |
panel = :wxPanel.new(frame, []) | |
:wxPanel.connect(panel, :paint, [:callback]) | |
:wxFrame.show(frame) | |
state = %{panel: panel} | |
{frame, state} | |
end | |
def handle_event({:wx, _, _, _, {:wxSize, :size, size, _}}, state = %{panel: panel}) do | |
:wxPanel.setSize(panel, size) | |
{:noreply, state} | |
end | |
def handle_event({:wx, _, _, _, {:wxClose, :close_window}}, state) do | |
{:stop, :normal, state} | |
end | |
def handle_sync_event({:wx, _, _, _, {:wxPaint, :paint}}, _, state = %{panel: panel}) do | |
brush = :wxBrush.new | |
:wxBrush.setColour(brush, {255, 255, 255, 255}) | |
dc = :wxPaintDC.new(panel) | |
:wxDC.setBackground(dc, brush) | |
:wxDC.clear(dc) | |
:wxPaintDC.destroy(dc) | |
:ok | |
end | |
end | |
defmodule Script do | |
def main(args) do | |
{:wx_ref, _, _, pid} = Canvas.start_link | |
ref = Process.monitor(pid) | |
receive do | |
{:DOWN, ^ref, _, _, _} -> | |
:ok | |
end | |
end | |
end | |
Script.main(System.argv) |
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