PYGLET – Getting Point From Position in Incremental Text Layout
In this article we will see how we can get the point from the position in incremental text layout object 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). Incremental text layout displays text which is suitable for interactive editing and/or scrolling large documents. Unlike TextLayout and ScrollableTextLayout, this class generates vertex lists only for lines of text that are visible. As the document is scrolled, vertex lists are deleted and created as appropriate to keep video memory usage to a minimum and improve rendering speed. Point of position is the X, y co-ordinate of the given position in document.
We can create a window and incremental text layout with the help of commands given below
# creating a window window = pyglet.window.Window(width, height, title) # creating a in layout = pyglet.text.layout.IncrementalTextLayout(document, width, height)
In order to create window we use get_point_from_position method
Syntax : layout.get_point_from_position(pos)
Argument : It takes integer as argument
Return : It returns tuple
Below is the implementation
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 = "w3wiki" # creating a window window = pyglet.window.Window(width, height, title) # text text = "w3wiki Learn and Grow, Portal for Beginner" # batch object batch = pyglet.graphics.Batch() # creating a formatted document # unlike unformatted document it is formatted 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 , multiline = True , 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 = pyglet.resource.image( "gfg.png" ) # setting image as icon window.set_icon(img) # getting point from the position value = layout.get_point_from_position( 15 ) # printing value print ( "Point of position : " , end = "") print (value) # start running the application pyglet.app.run() |
Output :
Point of position : (169, 330)