我正在尝试创建一个测试应用程序。应用程序应将图像列在目录中，在屏幕上显示第一个图像，获取键盘响应并显示第二个图像，进行响应，并为每个图像执行此操作。
我创建了一个glade文件，我正在使用它在RavensAPM类中创建接口。林间空地文件中有一个Gtk.Window，其中包含一个Gtk.Box，而Gtk.Image又包含一个run_ravens_apm()。我使用RavensAPM函数列出图像并将图像逐个送到RavensAPM类。在show_all()课程中，我更新图片并使用GLib.timeout_add()呈现所有内容。
此时我希望应用程序等待按键[1-8]和键盘按键[1-8]的按键事件。
我检查了for函数的用法，但我无法从中获得所需的行为。目前，run_ravens_apm()内的RavensAPM循环同时调用GLib.timeout_add()并创建与图像数量一样多的窗口，而无需等待键盘信号/事件。
我尝试将__call__()放在类的class RavensAPM:
def __init__(self, test_image):
self.builder = Gtk.Builder()
self.builder.add_from_file('glade/window_ravens_apm.glade')
self.window = self.builder.get_object('window_ravens_apm')
self.window.fullscreen()
self.window.connect('key-release-event', self.on_event_after)
window_height = 1080
self.pixbuf_file = \
GdkPixbuf.Pixbuf.new_from_file_at_scale(test_image,
-1,
window_height,
True)
self.image = self.builder.get_object('ravens_apm_image')
self.image.set_from_pixbuf(self.pixbuf_file)
self.window.show_all()
def on_event_after(self, widget, event):
keys = [i for i in range(49, 57)] + [i for i in range(65457, 65465)]
key_value = event.keyval
if keys in key_value:
self.window.destroy()
return False
def __call__(self):
self.on_event_after()
return True
def run_ravens_apm():
# List the contents of img/ravens_apm
# Use a loop to run RavensAPM for the length of images
interval_ms = 200
img_directory = 'img/ravens_apm'
img_files = os.listdir(img_directory)
img_files.sort()
img_files = img_files[:2]
nr_images = len(img_files)
for i in range(nr_images):
img_file = os.path.join(img_directory, img_files[i])
ravens = RavensAPM(img_file)
GLib.timeout_add(interval_ms, ravens)
print('GLib.timeout_add must wait for Gdk.EventKey event')
print(datetime.datetime.now())
方法中，并将该类的实例用作函数，但它也不起作用。
我做错了什么？
<?xml version="1.0" encoding="UTF-8"?>
<!-- Generated with glade 3.18.3 -->
<interface>
<requires lib="gtk+" version="3.12"/>
<object class="GtkWindow" id="window_ravens_apm">
<property name="can_focus">False</property>
<signal name="key-press-event" handler="on_windows_ravens_apm_key_press_event" swapped="no"/>
<child>
<object class="GtkViewport" id="viewport1">
<property name="visible">True</property>
<property name="can_focus">False</property>
<child>
<object class="GtkBox" id="box1">
<property name="visible">True</property>
<property name="can_focus">False</property>
<property name="orientation">vertical</property>
<child>
<object class="GtkImage" id="ravens_apm_image">
<property name="visible">True</property>
<property name="can_focus">False</property>
<property name="stock">gtk-missing-image</property>
<signal name="key-press-event" handler="on_ravens_apm_keypress" swapped="no"/>
</object>
<packing>
<property name="expand">True</property>
<property name="fill">True</property>
<property name="position">0</property>
</packing>
</child>
</object>
</child>
</object>
</child>
</object>
</interface>
林间空地文件的内容如下。
$number = (int) $_GET['tics'];
$items = range(1, $number);
答案 0 :(得分：0)
如果您需要更长的答案，我会在此处发布我的解决方案。很简单。现在我知道我应该从未使用过Glib.timeout_add()函数。
#!/usr/bin/python3
import gi
import os
import random
from gi.repository import Gtk
from gi.repository import GdkPixbuf
# from gi.repository import Gdk
# from gi.repository import GLib
gi.require_version('Gtk', '3.0')
FAKING_FIRTS = None
WINDOW_HEIGHT = 1080
class RavensAPM:
def __init__(self, img_list, window_height):
self.img_list = img_list
self.window_height = window_height
self.builder = Gtk.Builder()
self.builder.add_from_file('glade/window_ravens_apm.glade')
self.window = self.builder.get_object('window_ravens_apm')
self.window.connect('key-release-event', self.on_key_released)
self.window.fullscreen()
self.ravens_image = self.builder.get_object('ravens_apm_image')
self.pixbuf_file = \
GdkPixbuf.Pixbuf.new_from_file_at_scale(self.img_list[-1],
-1,
self.window_height,
True)
self.ravens_image.set_from_pixbuf(self.pixbuf_file)
self.window.show_all()
def on_key_released(self, widget, event):
key_value = event.keyval
keys_list = list(range(49, 57)) + list(range(65429, 65436))
if key_value in keys_list:
# TODO
# Do stg to save the keyvalue somewhere
self.img_list.pop()
self.pixbuf_file = \
GdkPixbuf.Pixbuf.new_from_file_at_scale(self.img_list[-1],
-1,
self.window_height,
True)
self.ravens_image = self.builder.get_object('ravens_apm_image')
self.ravens_image.set_from_pixbuf(self.pixbuf_file)
def run_ravens_apm():
img_directory = 'img/ravens_apm'
img_files = os.listdir(img_directory)
img_files.sort(reverse=True)
img_files = [os.path.join(img_directory, i) for i in img_files]
RavensAPM(img_files, WINDOW_HEIGHT)
这是我使用的Glade文件。
<?xml version="1.0" encoding="UTF-8"?>
<!-- Generated with glade 3.18.3 -->
<interface>
<requires lib="gtk+" version="3.12"/>
<object class="GtkWindow" id="window_ravens_apm">
<property name="can_focus">False</property>
<child>
<object class="GtkViewport" id="viewport1">
<property name="visible">True</property>
<property name="can_focus">False</property>
<child>
<object class="GtkBox" id="box1">
<property name="visible">True</property>
<property name="can_focus">False</property>
<property name="orientation">vertical</property>
<child>
<object class="GtkImage" id="ravens_apm_image">
<property name="visible">True</property>
<property name="can_focus">False</property>
<property name="stock">gtk-missing-image</property>
<signal name="key-press-event" handler="on_ravens_apm_keypress" swapped="no"/>
</object>
<packing>
<property name="expand">True</property>
<property name="fill">True</property>
<property name="position">0</property>
</packing>
</child>
</object>
</child>
</object>
</child>
</object>
</interface>