PYGLET – 删除插入符号

在本文中，我们将看到如何在Python的 PYGLET 模块中删除插入符号。 Pyglet 易于使用但功能强大的库，用于开发视觉丰富的 GUI 应用程序，如游戏、多媒体等。窗口是占用操作系统资源的“重量级”对象。 Windows 可能显示为浮动区域，也可以设置为填充整个屏幕（全屏）。 Caret 基本上是 pyglet.text.layout.IncrementalTextLayout 的可见文本插入标记。插入符号在文本布局对象的文档位置绘制为单个垂直条。如果标记不是无，它给出当前文本选择的静止结束。删除插入符号意味着从其批次中删除插入符号。并将插入符号与进一步的布局事件断开连接。
我们可以在下面给出的命令的帮助下创建一个窗口和插入符号

# creating a window
window = pyglet.window.Window(width, height, title)

# creating a caret
caret = pyglet.text.caret.Caret(layout, color=(255, 255, 255))

In order to create window we use delete method with the caret object
Syntax : caret.delete()
Argument : It takes no argument
Return : It returns None

编程需要懂一点英语

下面是实现

Python3

# importing pyglet module
import pyglet
import pyglet.window.key
 
# width of window
width = 500
 
# height of window
height = 500
 
# caption i.e title of the window
title = "Geeksforgeeks"
 
# creating a window
window = pyglet.window.Window(width, height, title)
 
# text
text = "Welcome to GeeksforGeeks"
 
# batch object
batch = pyglet.graphics.Batch()
 
# creating document
document = pyglet.text.document.FormattedDocument(text)
 
# setting style to the document
document.set_style(0, len(document.text), dict(font_name ='Arial', font_size = 16, color =(255, 255, 255, 255)))
 
# creating a incremental text layout
layout = pyglet.text.layout.IncrementalTextLayout(document, 400, 50, batch = batch)
 
# creating a caret
caret = pyglet.text.caret.Caret(layout, color =(255, 255, 255))
 
# caret to window push handlers
# window.push_handlers(caret)
 
# on draw event
@window.event
def on_draw():
     
    # clear the window
    window.clear()
     
    # draw the batch
    batch.draw()
     
    # window push handlers
    window.push_handlers(caret)
 
     
# key press event   
@window.event
def on_key_press(symbol, modifier):
 
    # key "C" get press
    if symbol == pyglet.window.key.C:
         
        # closing the window
        window.close()
     
 
# image for icon
img = image = pyglet.resource.image("logo.png")
 
# setting image as icon
window.set_icon(img)
 
# importing pyglet module
import pyglet
import pyglet.window.key
 
# width of window
width = 500
 
# height of window
height = 500
 
# caption i.e title of the window
title = "Geeksforgeeks"
 
# creating a window
window = pyglet.window.Window(width, height, title)
 
# text
text = "Welcome to GeeksforGeeks"
 
# batch object
batch = pyglet.graphics.Batch()
 
# creating document
document = pyglet.text.document.FormattedDocument(text)
 
# setting style to the document
document.set_style(0, len(document.text), dict(font_name ='Arial', font_size = 16, color =(255, 255, 255, 255)))
 
# creating a incremental text layout
layout = pyglet.text.layout.IncrementalTextLayout(document, 400, 50, batch = batch)
 
# creating a caret
caret = pyglet.text.caret.Caret(layout, color =(255, 255, 255))
 
# caret to window push handlers
window.push_handlers(caret)
 
caret.move_to_point(100, 100)
 
# on draw event
@window.event
def on_draw():
     
    # clear the window
    window.clear()
     
    # draw the batch
    batch.draw()
     
    # caret to window push handlers
    window.push_handlers(caret)
 
     
# key press event   
@window.event
def on_key_press(symbol, modifier):
 
    # key "C" get press
    if symbol == pyglet.window.key.C:
         
        # closing the window
        # window.close()
        pass
     
 
# image for icon
img = image = pyglet.resource.image("logo.png")
 
# setting image as icon
window.set_icon(img)
 
# deleting caret object
caret.delete()
 
                
# start running the application
pyglet.app.run()

输出：