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  • Committer: Stefan Schwarzburg
  • Date: 2012-11-22 08:43:25 UTC
  • mfrom: (89.12.25 qreator)
  • mto: This revision was merged to the branch mainline in revision 101.
  • Revision ID: stefan.schwarzburg@googlemail.com-20121122084325-xubvujmrf0tz7d6r
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qreator/QreatorWindow.py
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# -*- Mode: Python; coding: utf-8; indent-tabs-mode: nil; tab-width: 4 -*-
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### BEGIN LICENSE
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# Copyright (C) 2012 David Planella <david.planella@ubuntu.com>
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# This program is free software: you can redistribute it and/or modify it
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# under the terms of the GNU General Public License version 3, as published
 
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# This program is free software: you can redistribute it and/or modify it 
 
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# under the terms of the GNU General Public License version 3, as published 
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# by the Free Software Foundation.
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#
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# This program is distributed in the hope that it will be useful, but
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# WITHOUT ANY WARRANTY; without even the implied warranties of
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# MERCHANTABILITY, SATISFACTORY QUALITY, or FITNESS FOR A PARTICULAR
 
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# 
 
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# This program is distributed in the hope that it will be useful, but 
 
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# WITHOUT ANY WARRANTY; without even the implied warranties of 
 
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# MERCHANTABILITY, SATISFACTORY QUALITY, or FITNESS FOR A PARTICULAR 
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# PURPOSE.  See the GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License along
 
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# 
 
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# You should have received a copy of the GNU General Public License along 
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# with this program.  If not, see <http://www.gnu.org/licenses/>.
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### END LICENSE
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        # after having clicked once on an iconview icon
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        self.iconview_activation_delay = 200
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        # Initialize color editing
 
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        self.current_color_bg = Gdk.Color(65535, 65535, 65535)  # White
 
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        self.previous_color_bg = Gdk.Color(65535, 65535, 65535)
 
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        self.current_color_fg = Gdk.Color(0, 0, 0)  # Black
 
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        self.previous_color_fg = Gdk.Color(0, 0, 0)
 
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        # Add an initial text, so that there is an initial QR code
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        self.qr_code_placeholder = 'http://launchpad.net/qreator'
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        pixbuf = self.get_pixbuf_from_drawing_area()
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        self.clipboard.set_image(pixbuf)
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    def on_toolbuttonEdit_clicked(self, widget, data=None):
 
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        if widget.get_active():
 
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            self.ui.toolbar2.show()
 
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        else:
 
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            self.ui.toolbar2.hide()
 
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##########################################
 
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    def set_selector_colors(self):
 
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        '''Preloads the color selector with the current and previous
 
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        QR code colors'''
 
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        colorsel = self.ui.color_selection_dialog.get_color_selection()
 
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        if self.ui.radiobuttonfg.get_active():
 
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            colorsel.set_current_color(self.current_color_fg)
 
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            colorsel.set_previous_color(self.previous_color_fg)
 
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        elif self.ui.radiobuttonbg.get_active():
 
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            colorsel.set_current_color(self.current_color_bg)
 
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            colorsel.set_previous_color(self.previous_color_bg)
 
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    def on_toolbuttonColorSelector_clicked(self, widget, data=None):
 
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        '''Loads the color selector dialog and saves the chosen
 
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        current and previous QR code colors'''
 
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        colorsel = self.ui.color_selection_dialog.get_color_selection()
 
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        self.set_selector_colors()
 
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        colordiag = self.ui.color_selection_dialog
 
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        response = colordiag.run()
 
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        # It seems that when invoked from Glade, the color selector dialog
 
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        # returns an integer instead of Gtk.ResponseType.OK, and we need to
 
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        # set this integer explicitly in the .ui file. The 'OK' button
 
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        # returns '1'.
 
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        if response == 1:
 
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            if self.ui.radiobuttonfg.get_active():
 
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                self.current_color_fg = colorsel.get_current_color()
 
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                self.previous_color_fg = colorsel.get_previous_color()
 
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            elif self.ui.radiobuttonbg.get_active():
 
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                self.current_color_bg = colorsel.get_current_color()
 
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                self.previous_color_bg = colorsel.get_previous_color()                
 
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        self.update_qr_code(self.qr_code_placeholder)
 
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        self.ui.color_selection_dialog.hide()
 
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    def on_radiobuttonfg_toggled(self, widget, data=None):
 
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        '''Loads the foreground color in the selector when the foreground
 
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        radio button is toggled'''
 
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        self.set_selector_colors()
 
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    def on_radiobuttonbg_toggled(self, widget, data=None):
 
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        '''Loads the foreground color in the selector when the background
 
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        radio button is toggled'''
 
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        self.set_selector_colors()
 
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    def on_toolbuttonColorSwap_clicked(self, widget, data=None):
 
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        '''Swaps the QR code's foreground and background colors'''
 
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        self.previous_color_bg = self.current_color_bg
 
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        self.previous_color_fg = self.current_color_fg
 
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        self.current_color_bg = self.current_color_fg
 
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        self.current_color_fg = self.previous_color_bg
 
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        self.update_qr_code(self.qr_code_placeholder)
 
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    def on_toolbuttonColorReset_clicked(self, widget, data=None):
 
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        '''Reset QR code to defaults. At this point only the colors 
 
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        can be edited, so effectively it resets the foreground and
 
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        background colors to black and white, respectively'''
 
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        self.current_color_bg = Gdk.Color(65535, 65535, 65535)  # White
 
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        self.previous_color_bg = Gdk.Color(65535, 65535, 65535)
 
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        self.current_color_fg = Gdk.Color(0, 0, 0)  # Black
 
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        self.previous_color_fg = Gdk.Color(0, 0, 0)
 
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        self.update_qr_code(self.qr_code_placeholder)
 
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##########################################
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    def update_qr_code(self, text):
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        if not text == '':
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            ## Create the QR code
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            qr_code = QRCode()  # output_size = int(min(width, height) * 0.9))
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            self.surface = qr_code.encode(text, QRCodeOutput.CAIRO_SURFACE)
 
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            # Note that we need to convert the 16-bit RGB values from
 
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            # Gdk.Color to the 8-bit RGB values that PIL expects
 
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            self.surface = qr_code.encode(text,
 
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                                current_color_fg=(
 
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                                    self.current_color_fg.red / 256,
 
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                                    self.current_color_fg.green / 256,
 
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                                    self.current_color_fg.blue / 256),
 
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                                previous_color_fg=(
 
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                                    self.previous_color_fg.red / 256,
 
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                                    self.previous_color_fg.green / 256,
 
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                                    self.previous_color_fg.blue / 256),
 
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                                current_color_bg=(
 
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                                    self.current_color_bg.red / 256,
 
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                                    self.current_color_bg.green / 256,
 
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                                    self.current_color_bg.blue / 256),
 
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                                previous_color_bg=(
 
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                                    self.previous_color_bg.red / 256,
 
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                                    self.previous_color_bg.green / 256,
 
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                                    self.previous_color_bg.blue / 256),
 
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                                output_type=QRCodeOutput.CAIRO_SURFACE)
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            # Center the image in the drawing area
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            centered_width, centered_height = \