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# -*- Mode: Python; coding: utf-8; indent-tabs-mode: nil; tab-width: 4 -*-
### BEGIN LICENSE
# Copyright (C) 2012 David Planella <david.planella@ubuntu.com>
# This program is free software: you can redistribute it and/or modify it
# under the terms of the GNU General Public License version 3, as published
# by the Free Software Foundation.
#
# This program is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranties of
# MERCHANTABILITY, SATISFACTORY QUALITY, 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/>.
### END LICENSE
import cairo
import math
from gi.repository import Gtk, Gdk, GdkPixbuf # pylint: disable=E0611
import logging
logger = logging.getLogger('qreator')
from qreator_lib.i18n import _
from qreator_lib import Window
from qreator_lib.helpers import get_media_file
from QRCode import QRCode
from QRCode import QRCodeOutput
COL_DESC = 0
COL_PIXBUF = 1
COL_ID = 2
PAGE_NEW = 0
#PAGE_HISTORY = 1
PAGE_ABOUT = 1
PAGE_QR = 2
# See qreator_lib.Window.py for more details about how this class works
class QreatorWindow(Window):
__gtype_name__ = "QreatorWindow"
def finish_initializing(self, builder): # pylint: disable=E1002
"""Set up the main window"""
super(QreatorWindow, self).finish_initializing(builder)
# Code for other initialization actions should be added here.
# Initialize the clipboard
self.clipboard = Gtk.Clipboard.get(Gdk.SELECTION_CLIPBOARD)
# Initialize the style for the main toolbar
context = self.ui.toolbar1.get_style_context()
context.add_class(Gtk.STYLE_CLASS_PRIMARY_TOOLBAR)
# Initialize the Cairo surface that will contain the QR code
self.surface = None
# Hide the notebook tabs
self.ui.notebook1.set_show_tabs(False)
# Initialize about dialog
self.init_about_dialog()
# Initialize the QR types icon view
self.init_qr_types()
# Load the background texture in the QR code page
self.texture = cairo.ImageSurface.create_from_png(
get_media_file("pattern.png"))
# Add an initial text, so that there is an initial QR code
self.qr_code_placeholder = 'http://launchpad.net/qreator'
def init_qr_types(self):
# Set up the QR types shown in the main icon view
self.ui.qr_types_view.set_text_column(COL_DESC)
self.ui.qr_types_view.set_pixbuf_column(COL_PIXBUF)
from qrcodes.QRCodeText import QRCodeText
from qrcodes.QRCodeURL import QRCodeURL
from qrcodes.QRCodeLocation import QRCodeLocation
from qrcodes.QRCodeWifi import QRCodeWifi
from qrcodes.QRCodeSoftwareCenterApp import QRCodeSoftwareCenterApp
self.qr_types = [
QRCodeURL(self.update_qr_code, 'url.png', _('URL'), 0),
QRCodeText(self.update_qr_code, 'text.png', _('Text'), 1),
QRCodeLocation(self.update_qr_code, 'location.png',
_('Geolocation'), 2),
QRCodeWifi(self.update_qr_code, 'wifi.png', _('Wifi network'), 3),
QRCodeSoftwareCenterApp(self.update_qr_code, 'softwarecentre.png',
_('Ubuntu Software Center app'), 4),
]
self.qr_types_store = Gtk.ListStore(str, GdkPixbuf.Pixbuf, int)
# ^ desc, icon, id ^
self.qr_types_store.set_sort_column_id(COL_DESC,
Gtk.SortType.ASCENDING)
self.ui.qr_types_view.set_model(self.qr_types_store)
self.fill_qr_types_store()
self.curr_height = 0
self.curr_width = 0
for qr_type in self.qr_types:
self.ui.qr_input_box.add(qr_type.widget.grid)
def fill_qr_types_store(self):
self.qr_types_store.clear()
for qr_type in self.qr_types:
icon = GdkPixbuf.Pixbuf.new_from_file(get_media_file(
qr_type.icon_path))
self.qr_types_store.append([qr_type.description,
icon,
qr_type.id])
def on_qreator_window_check_resize(self, widget):
'''We need this function to fix the issue described at
http://bit.ly/LW94BO whereby the number of columns of the icon view
widget stays fixed at the number set for the initial width of the
window'''
# Get the new size
new_width = widget.get_size()[0]
new_height = widget.get_size()[1]
# If the size has changed...
if(new_width != self.curr_width or new_height != self.curr_height):
# Remember new size
self.curr_width = new_width
self.curr_height = new_height
# and refill iconviews with icons to adjust columns number
self.fill_qr_types_store()
def init_about_dialog(self):
# Initialize about dialog
about = Gtk.AboutDialog()
about.set_program_name("Qreator")
about.set_copyright(
"Copyright (c) 2012 David Planella" +
"\nhttp://about.me/david.planella")
about.set_website("https://launchpad.net/qreator")
about.set_version('12.05.6')
about.set_authors([
'David Planella <david.planella@ubuntu.com>',
'Michael Hall <mhall119@ubuntu.com>',
'Andrew Starr-Bochicchio <andrewsomething@ubuntu.com >',
])
about.set_license(_('Distributed under the GPL v3 license.') +
'\nhttp://www.opensource.org/licenses/gpl-3.0.html')
about.set_translator_credits(_("translator-credits"))
box = self.ui.about_box
about.vbox.reparent(box)
# Get rid of the 'Close' button
for button in about.action_area.get_children():
if button.get_property('label') == 'gtk-close':
button.destroy()
##########################################
def on_toolbuttonNew_clicked(self, widget, data=None):
'''Shows the home page'''
self.ui.notebook1.set_current_page(PAGE_NEW)
def on_toolbuttonHistory_clicked(self, widget, data=None):
'''Shows the history page'''
pass # self.ui.notebook1.set_current_page(PAGE_HISTORY)
def on_toolbuttonAbout_clicked(self, widget, data=None):
'''Shows the about page'''
self.ui.notebook1.set_current_page(PAGE_ABOUT)
##########################################
def on_qr_types_view_item_activated(self, widget, item):
'''Loads the UI for the appropriate QR type'''
model = widget.get_model()
qr_id = model[item][COL_ID]
self.qr_types[qr_id].widget.on_activated()
self.ui.notebook1.set_current_page(PAGE_QR)
for child in self.ui.qr_input_box.get_children():
child.hide()
self.ui.qr_input_box.get_children()[qr_id].show()
##########################################
def get_pixbuf_from_drawing_area(self):
window = self.ui.qr_drawingarea.get_window()
src_x, src_y = self.get_centered_coordinates(self.ui.qr_drawingarea,
self.surface)
image_height = self.surface.get_height()
image_width = self.surface.get_width()
return Gdk.pixbuf_get_from_window(window, src_x, src_y,
image_width, image_height)
##########################################
def on_toolbuttonSave_clicked(self, widget, data=None):
if not self.surface:
return
dialog = Gtk.FileChooserDialog(_("Please choose a file"), self,
Gtk.FileChooserAction.SAVE,
(Gtk.STOCK_CANCEL, Gtk.ResponseType.CANCEL,
Gtk.STOCK_SAVE, Gtk.ResponseType.OK))
filter_png = Gtk.FileFilter()
filter_png.set_name(_("PNG images"))
filter_png.add_mime_type("image/png")
dialog.add_filter(filter_png)
response = dialog.run()
if response == Gtk.ResponseType.OK:
# We cannot write directly from the surface, as the
# Surface.write_to_png() method writes the image in the original
# size returned by qrencode (i.e. non-scaled), and the
# SurfacePattern does not have any methods to write to disk.
# So we read the contents from the Gtk.DrawingArea, put them into
# a Gdk.Pixbuf and use its 'savev' method to write to disk.
pixbuf = self.get_pixbuf_from_drawing_area()
pixbuf.savev(dialog.get_filename(), 'png', [], [])
dialog.destroy()
def on_toolbuttonCopy_clicked(self, widget, data=None):
if not self.surface:
return
pixbuf = self.get_pixbuf_from_drawing_area()
self.clipboard.set_image(pixbuf)
##########################################
def update_qr_code(self, text):
self.qr_code_placeholder = text
self.ui.qr_drawingarea.queue_draw()
def get_centered_coordinates(self, drawing_area, surface):
drawing_area_height = drawing_area.get_allocated_height()
drawing_area_width = drawing_area.get_allocated_width()
image_height = surface.get_height()
image_width = surface.get_width()
return (drawing_area_width / 2 - image_width / 2,
drawing_area_height / 2 - image_height / 2)
def on_qr_drawingarea_draw(self, widget, ctx, data=None):
text = self.qr_code_placeholder
## Fill the background
# Create a rounded rectanble
x = 0.0
y = 0.0
width = widget.get_allocated_width()
height = widget.get_allocated_height()
aspect = 1.0
corner_radius = height / 50.0
radius = corner_radius / aspect
degrees = math.pi / 180.0
ctx.new_sub_path()
ctx.arc(x + width - radius, y + radius, radius, -90 * degrees,
0 * degrees)
ctx.arc(x + width - radius, y + height - radius, radius, 0 * degrees,
90 * degrees)
ctx.arc(x + radius, y + height - radius, radius, 90 * degrees,
180 * degrees)
ctx.arc(x + radius, y + radius, radius, 180 * degrees, 270 * degrees)
ctx.close_path()
# Fill the rounded rectangle with a linear gradient
lg = cairo.LinearGradient(0.0, 0.0, 500.0, 500.0)
lg.add_color_stop_rgba(0, 0.27, 0.27, 0.27, 1) # 1,1,1 is white
lg.add_color_stop_rgba(1, 0.22, 0.22, 0.22, 1)
ctx.set_source(lg)
ctx.fill()
# Load a texture and overlay it to the gradient, tiled
pattern = cairo.SurfacePattern(self.texture)
pattern.set_extend(cairo.EXTEND_REPEAT)
ctx.set_source(pattern)
ctx.paint()
if not text == '':
## Create the QR code
qr_code = QRCode()
self.surface = qr_code.encode(text, QRCodeOutput.CAIRO_SURFACE)
# Center the image in the drawing area
centered_width, centered_height = \
self.get_centered_coordinates(widget, self.surface)
ctx.translate(centered_width, centered_height)
# Set the surface as the context's source
ctx.set_source_surface(self.surface)
# Render the image
ctx.paint()
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