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PYGLET – Setting Style to whole Formatted Document
  • Last Updated : 23 Sep, 2020

In this article we will see how we can set style to whole 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. By setting style we can change the look of the whole 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
documnet = pyglet.text.document.FormattedDocument(text)

In order to create window we use set_style method with the document object

Syntax : document.set_style(start, end, attributes)

Argument : It takes two integer and dictionary as argument



Return : It returns None

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 winow 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 winow 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)
  
# style
style = dict(color =(105, 255, 105, 255))
  
# setting style
document.set_style(10, 25, style)
  
# start running the application
pyglet.app.run()

Output :

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