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|
#!/usr/bin/ruby
#
# @file TermStyler
#
# @copyright (c) 2011, Christoph Kappel <unexist@dorfelite.net>
# @version $Id$
#
# TermStyler is a helper to create or change terminal color themes.
#
# http://subforge.org/projects/subtle-contrib/wiki/TermStyler
#
begin
require "gtk2"
rescue LoadError
puts <<EOF
>>> ERROR: Couldn't find the gem `gtk2'
>>> Please install it with following command:
>>> gem install gtk2
EOF
exit
end
# TermStyler class
module Subtle # {{{
module Contrib # {{{
class TermStyler < Gtk::Window # {{{
WINDOW_WIDTH = 720
WINDOW_HEIGHT = 420
AREA_WIDTH = 404
AREA_HEIGHT = 365
REGEXP = Regexp.new("^[^!#]*(color[0-9]+|foreground|background)\s*:\s*(#[0-9a-zA-Z]*)")
## initialize {{{
# Init window
##
def initialize
super
# Options
set_title("Styler for terminals")
set_wmclass("termstyler", "subtle")
set_resizable(false)
set_keep_above(true)
set_size_request(WINDOW_WIDTH, WINDOW_HEIGHT)
set_window_position(Gtk::Window::POS_CENTER)
stick
# Signals
signal_connect("delete_event") do
false
end
signal_connect("destroy") do
Gtk.main_quit
end
# Alignment
align = Gtk::Alignment.new(0.5, 0.5, 0.5, 0.5)
align.set_padding(7, 7, 7, 7)
add(align)
# Vbox
vbox = Gtk::VBox.new
align.add(vbox)
# HBox
hbox = Gtk::HBox.new
vbox.pack_start(hbox)
# Table
table = Gtk::Table.new(4, 9)
hbox.pack_start(table, true, false, 5)
# Frame
frame = Gtk::Frame.new
frame.set_border_width(0)
frame.set_shadow_type(Gtk::SHADOW_NONE)
hbox.pack_start(frame)
# Area
@area = Gtk::DrawingArea.new
@area.set_size_request(AREA_WIDTH, AREA_HEIGHT)
@area.signal_connect("expose_event") do
expose(@area.window.create_cairo_context)
end
frame.add(@area)
# Get colors
load_colors
# Color buttons
@buttons = {}
row = 0
idx1 = 0
idx2 = 8
@buttons["foreground"] = color_button(table, row, 0, "foreground")
@buttons["background"] = color_button(table, row, 2, "background")
8.times do |i|
row += 1
name1 = "color#{idx1 + i}"
name2 = "color#{idx2 + i}"
@buttons[name1] = color_button(table, row, 0, name1)
@buttons[name2] = color_button(table, row, 2, name2)
end
# Hbox
hbox = Gtk::HButtonBox.new
vbox.pack_start(hbox, false, false, 5)
# Print button
button = Gtk::Button.new("Print")
hbox.pack_start(button, false, false, 2)
button.signal_connect("clicked") do
print_pair("", "foreground", "background")
print_pair("black", "color0", "color8")
print_pair("red", "color1", "color9")
print_pair("green", "color2", "color10")
print_pair("yellow", "color3", "color11")
print_pair("blue", "color4", "color12")
print_pair("magenta", "color5", "color13")
print_pair("cyan", "color6", "color14")
print_pair("white", "color7", "color15")
end
# Reset button
button = Gtk::Button.new("Reset")
hbox.pack_start(button, false, false, 2)
button.signal_connect("clicked") do
load_colors
# Reset color buttons
@colors.each do |k, v|
@buttons[k].set_color(Gdk::Color.parse(v))
end
@area.signal_emit("expose-event", nil)
end
# Exit button
button = Gtk::Button.new("Exit")
hbox.pack_start(button, false, false, 2)
button.signal_connect("clicked") do
Gtk.main_quit
end
show_all
end # }}}
private
def print_pair(name, col1, col2) # {{{
puts "!#{name}" unless(name.empty?)
puts "*%-11s %s" % [ col1 + ":", @colors[col1] ]
puts "*%-11s %s" % [ col2 + ":", @colors[col2] ]
end # }}}
def load_colors # {{{
@colors = Hash[*(16.times.to_a.map { |i|
[ "color#{i}", "#000000" ]
} << ["forground", "#ffffff", "background", "#000000"]).flatten]
# Load and parse Xdefaults
File.open("#{ENV["HOME"]}/.Xdefaults") do |f|
while(line = f.gets)
if line.match(REGEXP)
@colors[$~[1]] = $~[2]
end
end
end
rescue
end # }}}
def scale_round(val, factor) # {{{
val = (val * factor + 0.5).floor
val = val > 0 ? val : 0 #< Min
val = val > factor ? factor : val #< Max
val
end # }}}
def color_button(table, row, col, name) # {{{
caption = name.to_s.split(/[^a-z0-9]/i).map { |w|
w.capitalize
}.join(" ")
label = Gtk::Label.new(caption)
button = Gtk::ColorButton.new(
Gdk::Color.parse(@colors[name])
)
# Align
align = Gtk::Alignment.new(1.0, 0.0, 0, 0)
align.add(label)
# Signal handler
button.signal_connect("color-set") do |button|
begin
# Assemble and update hex color
@colors[name] = "#%02X%02X%02X" % [
scale_round((button.color.red.to_f / 65535), 255),
scale_round((button.color.green.to_f / 65535), 255),
scale_round((button.color.blue.to_f / 65535), 255)
]
@area.signal_emit("expose-event", nil)
rescue => error
puts error, error.backtrace
end
end
# Attach to table
table.attach(align, 0 + col, 1 + col, 0 + row, 1 + row,
Gtk::SHRINK, Gtk::SHRINK, 5, 5)
table.attach(button, 1 + col, 2 + col, 0 + row, 1 + row,
Gtk::SHRINK, Gtk::SHRINK, 5, 5)
return button
end # }}}
def expose(cr) # {{{
# Border
cr.set_source_rgb(1.0, 0.0, 0.0)
cr.rectangle(0, 0, AREA_WIDTH, AREA_HEIGHT)
cr.fill
# Rects
width = (AREA_WIDTH - 4) / 8
8.times do |i|
draw_rect(cr, 2 + width * i, 2, width, AREA_HEIGHT - 4, @colors["color#{i}"])
end
# Fore-/background
draw_rect(cr, 2, 2, AREA_WIDTH - 4, 38, @colors["background"])
# Labels
xary = 8.times.map { |i| 10 + width * i }
y = 0
8.times do |i|
draw_text(cr, "Norm", xary, 60 + y, @colors["color#{i}"])
draw_text(cr, "Bold", xary, 75 + y, @colors["color#{8 + i}"], true)
y += 40
end
draw_text(cr, "Col", xary, 24, @colors["foreground"])
end # }}}
def draw_rect(cr, x, y, width, height, color) # {{{
cr.set_source_color(Gdk::Color.parse(color))
cr.rectangle(x, y, width, height)
cr.fill
end # }}}
def draw_text(cr, text, xary, y, color, bold = false) # {{{
cr.set_source_color(Gdk::Color.parse(color))
cr.select_font_face("Arial", Cairo::FONT_SLANT_NORMAL,
bold ? Cairo::FONT_WEIGHT_BOLD : Cairo::FONT_WEIGHT_NORMAL
)
cr.set_font_size(14)
xary = [ xary ] if(xary.is_a?(Fixnum))
# Draw text on each xary pos
xary.each do |x|
cr.move_to(x, y)
cr.show_text(text)
end
cr.stroke
end # }}}
end # }}}
end # }}}
end # }}}
# Implicitly run<
if __FILE__ == $0
Gtk.init
Subtle::Contrib::TermStyler.new
Gtk.main
end
# vim:ts=2:bs=2:sw=2:et:fdm=marker
|