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#!/usr/bin/env python
# -*- coding: utf-8 -*-
# images.py
#
# Copyright 2012 S. Daniel Francis <francis@sugarlabs.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, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
# MA 02110-1301, USA.
#
import gtk
from sugar.graphics.tray import VTray
TARGET_TYPE_TEXT = 80
TARGET_TYPE_PIXMAP = 81
class Image:
ready = False
path = None
def __init__(self):
self.pixbuf = None
self.width = -1
self.height = -1
def set_from_pixbuf(self, pixbuf):
self.pixbuf = pixbuf
self.width = self.pixbuf.get_width()
self.height = self.pixbuf.get_height()
self.ready = True
def set_from_file(self, path):
self.path = path
self.pixbuf = gtk.gdk.pixbuf_new_from_file(path)
self.width = self.pixbuf.get_width()
self.height = self.pixbuf.get_height()
self.ready = True
def resize_to_galery(self):
# Cross Multiplication : Rule of Three
# self.width -- self.height
# espected_width (150) -- new_height (unknown)
new_height = 150 * self.height / self.width
return self.pixbuf.scale_simple(150,
new_height,
gtk.gdk.INTERP_NEAREST)
def render_to_preview(self, width=None, height=None):
return self.pixbuf
#_width = width if width else self.width
#_height = height if height else self.height
#return self.pixbuf.scale_simple(int(_width),
# int(_height),
# gtk.gdk.INTERP_BILINEAR)
class ImagesGalery(VTray):
def image_request(self, widget, index):
return self.images[int(index)][1]
def drag_send(self, widget, context, selection, targetType, eventTime):
for i in self.images:
if i[0].get_child() == widget:
selection.set(gtk.gdk.TARGET_STRING,
8,
str(self.images.index(i)))
def append_image(self, image):
item = gtk.ToolButton(self.main_item)
child = item.get_child()
child.connect("drag_data_get", self.drag_send)
child.drag_source_set(gtk.gdk.BUTTON1_MASK,
[("text/plain",
0,
TARGET_TYPE_TEXT)],
gtk.gdk.ACTION_COPY)
pixbuf = image.resize_to_galery()
image_widget = gtk.image_new_from_pixbuf(pixbuf)
image_widget.show()
item.set_icon_widget(image_widget)
self.add_item(item)
item.show()
self.images.append((item, image))
adjustment = self._viewport.get_vadjustment()
adjustment.set_value(adjustment.get_upper())
def __init__(self):
super(ImagesGalery, self).__init__()
self.main_item = gtk.RadioToolButton()
self.images = []
self.set_size_request(170, -1)
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