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#!/usr/bin/env python3
'''
xpybar – xmobar replacement written in python
Copyright © 2014 Mattias Andrée (maandree@member.fsf.org)
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
'''
import Xlib.display, Xlib.Xatom, Xlib.ext.randr, Xlib.X
from x import *
global OUTPUT, HEIGHT, YPOS, TOP, FONT, BACKGROUND, FOREGROUND
global dislay, outputs, redraw, Bar, start, stop
OUTPUT, HEIGHT, YPOS, TOP = 0, 12, 0, True
FONT = '-misc-fixed-*-*-*-*-10-*-*-*-*-*-*-*'
BACKGROUND, FOREGROUND = (0, 0, 0), (192, 192, 192)
def redraw():
'''
Invoked when redraw is needed,
feel free to replace this completely
'''
global bar
bar.clear()
def start():
'''
Invoked when it is time to create panels and map them,
feel free to replace this completely
'''
global bar
bar = Bar(OUTPUT, HEIGHT, YPOS, TOP, FONT, BACKGROUND, FOREGROUND)
bar.map()
def stop():
'''
Invoked when it is time to unmap the panels,
feel free to replace this completely
'''
global bar
bar.unmap()
def unhandled_event(e):
'''
Invoked when an unrecognised even is polled,
feel free to replace this completely
@param e The event
'''
pass
class Bar:
'''
Docked panel
@variable window The X window
@variable gc The window's graphics context
@variable cmap The window's colour map
@variable width:int The output's pixel width
@variable height:int The output's pixel height
@variable left:int The output's left position
@variable ypos:int The position of the panel in relation to either the top or bottom edge of the output
@variable panel_height:int The panel's height
@variable at_top:bool Whether the panel is to be docked to the top of the output, otherwise to the bottom
@variable background The default background
@variable foreground The default foreground
@variable font The default font
@variable font_metrics The default font's metrics
@variable font_height:int The height of the default font
'''
def __init__(self, output, height, ypos, top, font, background, foreground):
'''
Constructor
@param output:int The index of the output within the screen as printed by xrandr, except primary is first
@param height:int The height of the panel
@param ypos:int The position of the panel in relation the either the top or bottom edge of the output
@param top:int Whether the panel is to be docked to the top of the output, otherwise to the bottom
@param font:str The default font
@param background:(red:int, green:int, blue:int) The default background
@param foreground:(red:int, green:int, blue:int) The default foreground
'''
## Panel position
pos = outputs[output][:3] + [ypos, height, top]
self.width, self.height, self.left, self.ypos, self.panel_height, self.at_top = pos
## Create window and create/fetch resources
self.window = create_panel(*pos)
self.gc = self.window.create_gc()
self.cmap = self.window.get_attributes().colormap
## Graphics variables
self.background = self.create_colour(*background)
self.foreground = self.create_colour(*foreground)
(self.font, self.font_metrics, self.font_height) = self.create_font(font)
def map(self):
'''
Map the window
'''
self.window.map()
display.flush()
def unmap(self):
'''
Unmap the window
'''
self.window.unmap()
def text_width(self, text):
'''
Get the width of a text
@param text:str The text
@return :int The width of the text
'''
return self.font.query_text_extents(text).overall_width
def draw_text(self, x, y, text):
'''
Draw a text
@param x:int The left position of the text
@param y:int The Y position of the bottom of the text
@param text:str The text to draw
'''
draw_text(bar.window, bar.gc, x, y, text)
# TODO add draw_colour_text
def create_colour(self, red, green, blue):
'''
Create a colour instance
@param red:int The red component [0, 255]
@param green:int The green component [0, 255]
@param blue:int The blue component [0, 255]
@return The colour
'''
return self.cmap.alloc_color(red * 257, green * 257, blue * 257).pixel
def create_font(self, font):
'''
Create a font
@param font:str The font
@return The font, font metrics, and font height
'''
font = display.open_font(font)
font_metrics = font.query()
font_height = font_metrics.font_ascent + font_metrics.font_descent
return (font, font_metrics, font_height)
def change_colour(self, colour):
'''
Change the current colour
@param colour The colour
'''
self.gc.change(foreground = colour)
def change_font(self, font):
'''
Change the current font
@param font The font
'''
self.gc.change(font = font)
def clear(self):
'''
Fill the panel with its background colour and reset the colour and font
'''
self.change_colour(self.background)
self.window.fill_rectangle(self.gc, 0, 0, self.width, self.panel_height)
self.change_colour(self.foreground)
self.change_font(self.font)
# TODO load configurations
open_x()
display = get_display()
outputs = get_monitors()
start()
while True:
try:
e = display.next_event()
if e.type == Xlib.X.DestroyNotify:
break
else:
unhandled_event(e)
except KeyboardInterrupt:
break
redraw()
display.flush()
stop()
close_x()
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