File Chooser

A native file chooser for propane, bases around vanilla processing selectInput.

Usage

First load the chooser library, this creates the interface:-

public void file_selected(java.io.File selected);

which you need to define in your sketch, to make use the selected file. This sketch makes use of the propane method resizable (vanilla processing surface.setResizable(true)) so that we can change sketch size to match our image. Note we need to guard against img being nil or sketch will crash. You may change the the prompt select an image in select_input but you cannot change file_selected which is hard-wired to cope with java reflection.

example sketch

load_library :chooser

attr_reader :img

def settings
  size(400, 200)
end

def setup
  sketch_title 'Chooser'
  resizable
  fill 0, 0, 200
  text('Click Window to Load Image', 10, 100)
end

def draw
  image(img, 0, 0) unless img.nil?
end

def file_selected(selection)
  if selection.nil?
    puts 'Nothing Chosen'
  else
    @img = load_image(selection.get_absolute_path)
    surface.set_size(img.width, img.height)
  end
end

def mouse_clicked
  @img = nil
  # java_signature 'void selectInput(String, String)'
  select_input('select an image', 'file_selected')
end

See more examples here