In this article, we will see how we can access the event types of formatted document in PYGLET module in python. Pyglet is easy to use but powerful library for developing visually rich GUI applications like games, multimedia, etc. A window is a “heavyweight” object occupying operating system resources. Windows may appear as floating regions or can be set to fill an entire screen (fullscreen). Formatted documents are generally laid out to enhance their human readability by adding structure, such as headings, indentation, font variations, and other devices that transform plain (unformatted) text so that they have an appearance similar to published works. There are basically three events related to formatted document.
We can create a window and formatted document with the help of commands given below
# creating a window window = pyglet.window.Window(width, height, title) # creating document document = pyglet.text.document.FormattedDocument(text)
In order to create window we use event_types attribute with the document object
Syntax : document.event_types
Argument : It takes no argument
Return : It returns list
Below is the implementation
# 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 Have a nice day"
# batch object batch = pyglet.graphics.Batch()
# creating a formatted 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 , 350 , batch = batch)
# creating a caret caret = pyglet.text.caret.Caret(layout, color = ( 150 , 255 , 150 ))
# caret to window push handlers window.push_handlers(caret) # setting caret style caret.set_style( dict (font_name = "Arial" ))
# 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) # accessing event types of the document value = document.event_types
# printing the value print (value)
# start running the application pyglet.app.run() |
Output :
['on_insert_text', 'on_delete_text', 'on_style_text']