Add the functionality to add Journal Images to your articles in infoslicer.

Note: The drag and drop is still broken for Journam_Gallery_View

1 files changed, 164 insertions, 0 deletions

diff --git a/infoslicer/widgets/Journal_Gallery_View.py b/infoslicer/widgets/Journal_Gallery_View.py
new file mode 100644
index 0000000..7191d80
--- /dev/null
+++ b/infoslicer/widgets/Journal_Gallery_View.py
@@ -0,0 +1,164 @@
+# -*- coding: utf-8 -*-
+# Copyright (C) Aneesh Dogra <lionaneesh@gmail.com>
+#
+# 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.
+#
+# You should have received a copy of the GNU General Public License
+# along with this library; if not, write to the Free Software
+# Foundation, 51 Franklin Street, Suite 500 Boston, MA 02110-1335 USA
+
+from gi.repository import Gtk
+from gi.repository import Gdk
+from gi.repository import GObject
+from gi.repository import GdkPixbuf
+import os
+import cPickle
+import logging
+
+from Editable_Textbox import Editable_Textbox
+from infoslicer.processing.Article_Data import *
+from infoslicer.processing.Article import Article
+import book
+from infoslicer.processing import Journal_Getter as journal
+
+logger = logging.getLogger('infoslicer')
+
+# For journal images
+IMG_WIDTH  = 400
+IMG_HEIGHT = 300
+
+class Journal_Gallery_View( Gtk.HBox ): 
+    """
+    Created by Aneesh Dogra
+    Journal Gallery View
+
+    The journal gallery view displays the jounal images. 
+    
+    Drag-and-drop methods have been added to set up the images as a drag
+    source.  
+    The data returned by drag-data-get will be a list containing
+    an Image_Data object and a Sentence_Data object.  
+    These correspond to the image
+    and caption respectively.
+    """
+    
+    def __init__(self):
+        self.image_list = journal.get_starred_images()
+        GObject.GObject.__init__(self)
+        self.current_index = -1
+        self.source_article_id = -1
+        left_button = Gtk.Button(label="\n\n << \n\n")
+        right_button = Gtk.Button(label="\n\n >> \n\n")
+        self.imagenumberlabel = Gtk.Label()
+        self.image = Gtk.Image()
+        self.imagebox = Gtk.EventBox()
+        self.imagebox.add(self.image)
+        self.imagebox.drag_source_set(Gdk.ModifierType.BUTTON1_MASK,
+                                      [],
+                                      Gdk.DragAction.COPY)
+        self.imagebox.drag_source_add_image_targets()
+        self.imagebox.connect("drag-begin", self.drag_begin_event, None)
+        logging.debug('##################### Galler_View.connect')
+        self.imagebox.connect("drag-data-get", self.drag_data_get_event, None)
+
+        self.caption = Gtk.Label(label="")
+        self.caption.set_line_wrap(True)
+
+        self.image_drag_container = Gtk.VBox()
+        self.image_drag_container.pack_start(self.imagenumberlabel, expand=False,
+                                             fill=False, padding=0)
+        self.image_drag_container.pack_start(self.imagebox, False, True, 0)
+        self.image_drag_container.pack_start(self.caption, False, True, 0)
+
+        image_container = Gtk.VBox()
+        image_container.pack_start(Gtk.Label(" "), True, True, 0)
+        image_container.pack_start(self.image_drag_container, False, True, 0)
+        image_container.pack_start(Gtk.Label(" "), True, True, 0)
+
+        left_button_container = Gtk.VBox()
+        left_button_container.pack_start(Gtk.Label(" "), True, True, 0)
+        left_button_container.pack_start(left_button, False, True, 0)
+        left_button_container.pack_start(Gtk.Label(" "), True, True, 0)
+
+        right_button_container = Gtk.VBox()
+        right_button_container.pack_start(Gtk.Label(" "), True, True, 0)
+        right_button_container.pack_start(right_button, False, True, 0)
+        right_button_container.pack_start(Gtk.Label(" "), True, True, 0)
+
+
+        self.pack_start(left_button_container, False, True, 0)
+        self.pack_start(image_container, True, True, 0)
+        self.pack_start(right_button_container, False, True, 0)
+
+        self.show_all()
+        right_button.connect("clicked", self.get_next_item, None)
+        left_button.connect("clicked", self.get_prev_item, None)
+        self.get_next_item(right_button, None)
+        
+    def get_next_item(self, button, param):
+        if self.image_list == []:
+            self.caption.set_text("No images were found in the journal.")
+            self.image.clear()
+            return
+        self.current_index += 1
+        if self.current_index == len(self.image_list):
+            self.current_index = 0
+        self.imagebuf = GdkPixbuf.Pixbuf.new_from_file(self.image_list[self.current_index][0])
+        self.imagebuf = self.imagebuf.scale_simple(IMG_WIDTH, IMG_HEIGHT,
+                                            GdkPixbuf.InterpType.BILINEAR)
+        self.image.set_from_pixbuf(self.imagebuf)
+        self.caption.set_text("\n" + self.image_list[self.current_index][1])
+        self.imagenumberlabel.set_text("(%d / %d)\n" % (self.current_index+1, len(self.image_list)))
+
+    def get_prev_item(self, button, param):
+        if self.image_list == []:
+            self.caption.set_text("No images were found in the journal.")
+            self.image.clear()
+            return
+        if self.current_index == 0:
+            self.current_index = len(self.image_list)
+        self.current_index -= 1
+        self.imagebuf = GdkPixbuf.Pixbuf.new_from_file(self.image_list[self.current_index][0])
+        self.imagebuf =  self.imagebuf.scale_simple(IMG_WIDTH, IMG_HEIGHT,
+                                             GdkPixbuf.InterpType.BILINEAR)
+        self.image.set_from_pixbuf(self.imagebuf)
+        self.caption.set_text("\n" + self.image_list[self.current_index][1])
+        self.imagenumberlabel.set_text("(%d / %d)\n" % (self.current_index+1, len(self.image_list)))   
+        
+    def get_first_item(self):
+        if self.image_list == []:
+            self.caption.set_text("No images were found in the journal.")
+            self.image.clear()
+            return        
+        self.current_index = 0
+        self.imagebuf = GdkPixbuf.Pixbuf.new_from_file(self.image_list[self.current_index][0])
+        self.imagebuf = self.imagebuf.scale_simple(IMG_WIDTH, IMG_HEIGHT,
+                                       GdkPixbuf.InterpType.BILINEAR)
+        self.image.set_from_pixbuf(self.imagebuf)
+        self.caption.set_text("\n" + self.image_list[self.current_index][1])    
+        logger.debug("setting text to:")
+        logger.debug("(%d / %d)\n" %
+                (self.current_index+1, len(self.image_list)))
+        self.imagenumberlabel.set_text("(%d / %d)\n" % (self.current_index+1, len(self.image_list)))
+        
+    def drag_begin_event(self, widget, context, data):
+        logging.debug('########### Journal_Journal_Gallery_View.drag_begin_event called')
+        self.imagebox.drag_source_set_icon_pixbuf(self.imagebuf)
+        
+    def drag_data_get_event(self, widget, context, selection_data, info, timestamp, data):
+        logger.debug('############# Journal_Journal_Gallery_View.drag_data_get_event')
+        atom = Gdk.atom_intern("section", only_if_exists=False)
+        imagedata = Picture_Data(self.source_article_id,
+                self.image_list[self.current_index][0], None)
+        captiondata = Sentence_Data(0, self.source_article_id, 0, 0, 0, self.image_list[self.current_index][1])
+        paragraph1data = Paragraph_Data(0, self.source_article_id, 0, 0, [imagedata])
+        paragraph2data = Paragraph_Data(0, self.source_article_id, 0, 0, [captiondata])
+        sectionsdata = [Section_Data(0, self.source_article_id, 0, [paragraph1data, paragraph2data])]
+        print sectionsdata
+        string = cPickle.dumps(sectionsdata) #XXX: Here it generates a weird error.
+        # Even though sectionsdata is not a string, cPickle prints out "cannot pickle
+        # string objects"
+        selection_data.set(atom, 8, string)