行:pics.box.signal_connect(“button_press_event”){pics.nuImage},触发nuImage并在点击时将1添加到picindex计数器,使当前图像消失,并显示下一个图像。我想自动制作,就像幻灯片一样,无需点击。它需要每隔x秒显示一个新图像,使用睡眠或类似GLib.timeout_add_seconds(),但我不明白如何实现这些选项以继续循环而无需任何用户输入。谢谢你的帮助,我对ruby很新。
require 'gtk2'
class Pics
attr_accessor :pile, :picindex, :imgLoaded, :image, :box, :window, :time
def initialize
@window = Gtk::Window.new()
@window.signal_connect("destroy"){Gtk.main_quit}
pic1 = "1.jpg"
pic2 = "2.jpg"
pic3 = "3.jpg"
pic4 = "4.jpg"
@pile = [pic1, pic2, pic3, pic4]
@picindex = 0
self.getImage
@box = Gtk::EventBox.new.add(@image)
@time = true
end
def nuImage
@box.remove(@image)
@picindex = @picindex + 1
@picindex = 0 if @picindex == @pile.length
self.getImage
@box.add(@image)
@box.show
end
def getImage
@imgLoaded = @pile[@picindex]
img = Gdk::Pixbuf.new(@imgLoaded, 556, 900)
@image = Gtk::Image.new(img)
@image.show
end
end # class Pics
pics = Pics.new
pics.box.signal_connect("button_press_event"){pics.nuImage}
pics.window.set_default_size(556, 900)
pics.window.add(pics.box)
pics.window.show_all
Gtk.main
答案 0 :(得分:0)
以下代码是一个实现:
GLib::Timeout.add(1000) do
pics.nuImage if pics.time
true
end
pics.window.signal_connect("key_press_event") do |_window, event|
case event.keyval
when Gdk::Keyval::GDK_KEY_space
pics.time = !pics.time
end
end
更多详情:http://ruby-gnome2.sourceforge.jp/hiki.cgi?GLib%3A%3ATimeout