/usr/lib/python2.7/dist-packages/mcomix/thumbbar.py is in mcomix 1.00-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 | """thumbbar.py - Thumbnail sidebar for main window."""
import sys
import urllib
import gtk
import gobject
from mcomix.preferences import prefs
from mcomix import image_tools
from mcomix import tools
from mcomix import constants
from mcomix import thumbnail_view
class ThumbnailSidebar(gtk.ScrolledWindow):
"""A thumbnail sidebar including scrollbar for the main window."""
def __init__(self, window):
gtk.ScrolledWindow.__init__(self)
self._window = window
#: Thumbnail load status
self._loaded = False
#: Selected page in treeview
self._currently_selected_page = 0
self._selection_is_forced = False
self.set_policy(gtk.POLICY_NEVER, gtk.POLICY_ALWAYS)
self.get_vadjustment().step_increment = 15
self.get_vadjustment().page_increment = 1
# models - contains data
self._thumbnail_liststore = gtk.ListStore(gobject.TYPE_INT,
gtk.gdk.Pixbuf, gobject.TYPE_BOOLEAN)
# view - responsible for laying out the columns
self._treeview = thumbnail_view.ThumbnailTreeView(self._thumbnail_liststore)
if sys.platform == 'win32':
# Prevents flickering on update
self._treeview.unset_flags(gtk.DOUBLE_BUFFERED)
self._treeview.set_headers_visible(False)
self._treeview.pixbuf_column = 1
self._treeview.status_column = 2
# This method isn't necessary, as generate_thumbnail doesn't need the path
self._treeview.get_file_path_from_model = lambda *args: None
self._treeview.generate_thumbnail = self._generate_thumbnail
self._treeview.connect_after('drag_begin', self._drag_begin)
self._treeview.connect('drag_data_get', self._drag_data_get)
self._treeview.get_selection().connect('changed', self._selection_event)
# enable drag and dropping of images from thumbnail bar to some file
# manager
self._treeview.enable_model_drag_source(gtk.gdk.BUTTON1_MASK,
[('text/uri-list', 0, 0)], gtk.gdk.ACTION_COPY)
bg_colour = prefs['thumb bg colour']
# Page column
self._thumbnail_page_treeviewcolumn = gtk.TreeViewColumn(None)
self._treeview.append_column(self._thumbnail_page_treeviewcolumn)
self._text_cellrenderer = gtk.CellRendererText()
self._text_cellrenderer.set_property('background-gdk',
gtk.gdk.colormap_get_system().alloc_color(gtk.gdk.Color(
bg_colour[0], bg_colour[1], bg_colour[2]), False, True))
self._thumbnail_page_treeviewcolumn.set_sizing(gtk.TREE_VIEW_COLUMN_GROW_ONLY)
self._thumbnail_page_treeviewcolumn.pack_start(self._text_cellrenderer, False)
self._thumbnail_page_treeviewcolumn.add_attribute(self._text_cellrenderer, 'text', 0)
if not prefs['show page numbers on thumbnails']:
self._thumbnail_page_treeviewcolumn.set_property('visible', False)
# Pixbuf column
self._thumbnail_image_treeviewcolumn = gtk.TreeViewColumn(None)
self._treeview.append_column(self._thumbnail_image_treeviewcolumn)
self._pixbuf_cellrenderer = gtk.CellRendererPixbuf()
self._pixbuf_cellrenderer.set_property('cell-background-gdk',
gtk.gdk.colormap_get_system().alloc_color(gtk.gdk.Color(
bg_colour[0], bg_colour[1], bg_colour[2]), False, True))
self._thumbnail_image_treeviewcolumn.set_sizing(gtk.TREE_VIEW_COLUMN_AUTOSIZE)
self._thumbnail_image_treeviewcolumn.pack_start(self._pixbuf_cellrenderer, True)
self._thumbnail_image_treeviewcolumn.add_attribute(self._pixbuf_cellrenderer, 'pixbuf', 1)
self._thumbnail_image_treeviewcolumn.set_alignment(0.0)
self.add(self._treeview)
self.update_layout_size()
self.show_all()
def toggle_page_numbers_visible(self):
""" Enables or disables page numbers on the thumbnail bar. """
if prefs['show page numbers on thumbnails']:
self._thumbnail_page_treeviewcolumn.set_property('visible', True)
else:
self._thumbnail_page_treeviewcolumn.set_property('visible', False)
self.update_layout_size()
def update_layout_size(self):
""" Updates the thumbnail bar's width to fit to thumbnail size. """
new_width = prefs['thumbnail size'] + 9
if (self._window.filehandler.file_loaded and
prefs['show page numbers on thumbnails']):
new_width += tools.number_of_digits(
self._window.imagehandler.get_number_of_pages()) * 10
if prefs['thumbnail size'] <= 65:
new_width += 8
self._treeview.set_size_request(new_width, -1)
def get_width(self):
"""Return the width in pixels of the ThumbnailSidebar."""
return self.size_request()[0]
def show(self, *args):
"""Show the ThumbnailSidebar."""
self.show_all()
self.load_thumbnails()
def hide(self):
"""Hide the ThumbnailSidebar."""
self.hide_all()
def clear(self):
"""Clear the ThumbnailSidebar of any loaded thumbnails."""
self._treeview.stop_update()
self._thumbnail_liststore.clear()
self.hide()
self._loaded = False
self._currently_selected_page = 0
def load_thumbnails(self):
"""Load the thumbnails, if it is appropriate to do so."""
if (not self._window.filehandler.file_loaded or
self._window.imagehandler.get_number_of_pages() == 0 or
self._loaded):
return
self._load()
def resize(self):
"""Reload the thumbnails with the size specified by in the
preferences.
"""
self.clear()
self.load_thumbnails()
def update_select(self):
"""Select the thumbnail for the currently viewed page and make sure
that the thumbbar is scrolled so that the selected thumb is in view.
"""
# this is set to True so that when the event 'scroll-event' is triggered
# the function _scroll_event will not automatically jump to that page.
# this allows for the functionality that when going to a previous page the
# main window will start at the bottom of the image.
self._selection_is_forced = True
path = self._window.imagehandler.get_current_page() - 1
self._treeview.get_selection().select_path(path)
self._treeview.scroll_to_cell(path)
def change_thumbnail_background_color(self, colour):
""" Changes the background color of the thumbnail bar. """
self.set_thumbnail_background(colour)
# this hides or shows the control and quickly hides/shows it.
# this allows the thumbnail background to update
# when changing the color. if there is a better
# or easier way to force a refresh I have not found it.
if (prefs['show thumbnails'] and
not (self._window.is_fullscreen and
prefs['hide all in fullscreen'])):
self.hide_all()
self.show_all()
else:
self.show_all()
self.hide_all()
while gtk.events_pending():
gtk.main_iteration(False)
def set_thumbnail_background(self, colour):
color = gtk.gdk.colormap_get_system().alloc_color(
gtk.gdk.Color(colour[0], colour[1], colour[2]),
False, True)
self._pixbuf_cellrenderer.set_property('cell-background-gdk',
color)
self._text_cellrenderer.set_property('background-gdk',
color)
def _load(self):
# Detach model for performance reasons
model = self._treeview.get_model()
self._treeview.set_model(None)
# Create empty preview thumbnails.
filler = self._get_empty_thumbnail()
page_count = self._window.imagehandler.get_number_of_pages()
while len(self._thumbnail_liststore) < page_count:
self._thumbnail_liststore.append(
[len(self._thumbnail_liststore) + 1, filler, False])
self._loaded = True
# Re-attach model
self._treeview.set_model(model)
if not prefs['show thumbnails']:
# The control needs to be exposed at least once to enable height
# calculation.
self.show_all()
self.hide_all()
# Update layout and current image selection in the thumb bar.
self.update_layout_size()
self.update_select()
def _generate_thumbnail(self, file_path, model, path):
""" Generate the pixbuf for C{path} at demand. """
if isinstance(path, tuple):
page = path[0] + 1
elif isinstance(path, int):
page = path + 1
elif path is None:
return constants.MISSING_IMAGE_ICON
else:
assert False, "Expected int or tuple as tree path."
pixbuf = self._window.imagehandler.get_thumbnail(page,
prefs['thumbnail size'], prefs['thumbnail size']) or \
constants.MISSING_IMAGE_ICON
pixbuf = image_tools.add_border(pixbuf, 1)
return pixbuf
def _get_selected_row(self):
"""Return the index of the currently selected row."""
try:
return self._treeview.get_selection().get_selected_rows()[1][0][0]
except IndexError:
return None
def _selection_event(self, tree_selection, *args):
"""Handle events due to changed thumbnail selection."""
if not self._treeview.get_realized():
# Skip event processing before widget is actually ready
self._selection_is_forced = False
return
if not self._window.was_out_of_focus:
try:
selected_row = self._get_selected_row()
self._currently_selected_page = selected_row
if not self._selection_is_forced:
self._window.set_page(selected_row + 1)
except Exception:
pass
else:
# if the window was out of focus and the user clicks on
# the thumbbar then do not select that page because they
# more than likely have many pages open and are simply trying
# to give mcomix focus again
path = self._currently_selected_page
self._treeview.get_selection().select_path(path)
self._treeview.scroll_to_cell(path)
self._window.was_out_of_focus = False
self._selection_is_forced = False
def _drag_data_get(self, treeview, context, selection, *args):
"""Put the URI of the selected file into the SelectionData, so that
the file can be copied (e.g. to a file manager).
"""
try:
selected = self._get_selected_row()
path = self._window.imagehandler.get_path_to_page(selected + 1)
uri = 'file://localhost' + urllib.pathname2url(path)
selection.set_uris([uri])
except Exception:
pass
def _drag_begin(self, treeview, context):
"""We hook up on drag_begin events so that we can set the hotspot
for the cursor at the top left corner of the thumbnail (so that we
might actually see where we are dropping!).
"""
path = treeview.get_cursor()[0]
pixmap = treeview.create_row_drag_icon(path)
# context.set_icon_pixmap() seems to cause crashes, so we do a
# quick and dirty conversion to pixbuf.
pointer = gtk.gdk.Pixbuf(gtk.gdk.COLORSPACE_RGB, True, 8,
*pixmap.get_size())
pointer = pointer.get_from_drawable(pixmap, treeview.get_colormap(),
0, 0, 0, 0, *pixmap.get_size())
context.set_icon_pixbuf(pointer, -5, -5)
def _get_empty_thumbnail(self):
""" Create an empty filler pixmap. """
pixbuf = gtk.gdk.Pixbuf(colorspace=gtk.gdk.COLORSPACE_RGB,
has_alpha=True,
bits_per_sample=8,
width=prefs['thumbnail size'], height=prefs['thumbnail size'])
# Make the pixbuf transparent.
pixbuf.fill(0)
return pixbuf
# vim: expandtab:sw=4:ts=4
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