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import pygtk
pygtk.require ("2.0")
import gtk
import cairo
import pangocairo
import StringIO
import cropper
import generator
target_width = 240
target_height = 320
mainWindow = None
def prepare_text (cr, text):
'''Prepare text for drawing with Pango/Cairo'''
pcr = pangocairo.CairoContext (cr)
layout = pcr.create_layout ()
layout.set_markup (text)
return pcr, layout
def pilimage_to_pixbuf (image):
f = StringIO.StringIO ()
image.save (f, 'ppm')
contents = f.getvalue()
f.close ()
loader = gtk.gdk.PixbufLoader ('pnm')
loader.write (contents, len (contents))
pixbuf = loader.get_pixbuf ()
loader.close ()
return pixbuf
class ImagePreview (gtk.DrawingArea):
number = None
pixbuf = None
number_colors = [
(0.94, 0.16, 0.16),
(0.13, 0.29, 0.53),
(0.54, 0.89, 0.20),
(0.99, 0.69, 0.24),
]
def __init__ (self, cropped):
super (ImagePreview, self).__init__ ()
self.set_cropped (cropped)
self.set_size_request (140, 170)
self.connect ("expose-event", self.on_expose)
def set_cropped (self, cropped):
cropped = cropped.resize ((120, 160))
self.pixbuf = pilimage_to_pixbuf (cropped)
self.queue_draw ()
def set_number (self, number):
self.number = number
self.queue_draw ()
def on_expose (self, widget, event):
cr = self.window.cairo_create ()
cr.rectangle (10, 10, 120, 160)
cr.clip ()
cr.set_source_pixbuf (self.pixbuf, 10, 10)
cr.paint ()
if self.number:
cr.set_source_rgba (0.6, 0.6, 0.6, 0.8)
cr.paint ()
text = '<span font_desc="Sans 42"><b>%s</b></span>' % self.number
pcr, layout = prepare_text (cr, text)
text_width, text_height = layout.get_pixel_size ()
_, _, width, height = self.get_allocation ()
cr.move_to ((width - text_width) / 2, (height - text_height) / 2)
colors_count = len (self.number_colors)
color_id = (self.number - 1) % colors_count
cr.set_source_rgb (*self.number_colors[color_id])
pcr.show_layout (layout)
class ImageItem (gtk.VBox):
path = None
table = None
preview = None
cropped = None
cropper = None
cropperWindow = None
def __init__ (self, path, table):
super (ImageItem, self).__init__ ()
self.path = path
self.table = table
self.cropper = cropper.CropperUi (path, target_width, target_height)
self.cropped = self.cropper.get_cropped_image ()
self.preview = ImagePreview (self.cropped)
width, height = self.preview.get_size_request ()
self.set_size_request (width, height + 35)
self.pack_start (self.preview, False, False)
box = gtk.HBox (homogeneous = True)
self.pack_start (box, False, False)
use_button = gtk.CheckButton ("Use")
use_button.connect ("toggled", self.on_use)
box.pack_start (use_button, False, False)
crop_button = gtk.Button ("Crop")
crop_button.connect ("clicked", self.on_crop)
box.pack_start (crop_button, False, False)
def on_use (self, toggle):
if toggle.get_active ():
self.table.select_item (self)
else:
self.table.unselect_item (self)
def on_crop (self, widget):
self.cropperWindow = gtk.Window ()
self.cropperWindow.set_title ("Wallpaper Creator - Crop")
self.cropperWindow.set_modal (True)
self.cropperWindow.set_transient_for (mainWindow)
base_width, base_height = 800, 600
pixbuf_width = self.cropper.pixbuf.get_width ()
pixbuf_height = self.cropper.pixbuf.get_height ()
if pixbuf_height > pixbuf_width:
height = base_height
width = float (base_height) * pixbuf_width / pixbuf_height
else:
width = base_width
height = float (base_width) * pixbuf_height / pixbuf_width
self.cropper.set_size_request (int (width), int (height))
box = gtk.VBox ()
box.pack_start (self.cropper, True, True)
ok_button = gtk.Button ("Crop")
ok_button.connect ("clicked", self.crop)
box.pack_start (ok_button, False, False)
self.cropperWindow.add (box)
self.cropperWindow.show_all ()
def crop (self, button):
self.cropped = self.cropper.get_cropped_image ()
self.preview.set_cropped (self.cropped)
self.cropperWindow.get_child ().remove (self.cropper)
self.cropperWindow.destroy ()
def set_number (self, number):
self.preview.set_number (number)
class ImageTable (gtk.Fixed):
items = None
selected = None
alloc = None
def __init__ (self):
super (ImageTable, self).__init__ ()
self.connect_after ("size-allocate", self.on_size_allocate)
self.items = []
self.selected = []
def on_size_allocate (self, widget, alloc):
if alloc == self.alloc:
return
self.alloc = alloc
for i in range (len (self.items)):
item = self.items[i]
self.move (item, *self.get_item_pos (item, i))
def get_item_pos (self, item, i):
width, height = item.get_size_request ()
alloc = self.get_allocation ()
per_line = alloc.width / width
if per_line == 0:
return 0, 0
line = i / per_line
pos = i - per_line * line
return pos * width, line * height
def add_files (self, files):
for f in files:
item = ImageItem (f, self)
self.put (item, *self.get_item_pos (item, len (self.items)))
self.items.append (item)
self.show_all ()
def select_item (self, item):
self.selected.append (item)
item.set_number (len (self.selected))
def unselect_item (self, item):
if item in self.selected:
self.selected.remove (item)
item.set_number (None)
for i in range (len (self.selected)):
self.selected[i].set_number (i + 1)
def get_selection (self):
return [item.cropped for item in self.selected]
def add_image_filters (dialog):
filter = gtk.FileFilter ()
filter.set_name ("All files")
filter.add_pattern ("*")
dialog.add_filter (filter)
filter = gtk.FileFilter ()
filter.set_name ("Images")
filter.add_mime_type ("image/png")
filter.add_mime_type ("image/jpeg")
filter.add_pattern ("*.png")
filter.add_pattern ("*.jpg")
dialog.add_filter (filter)
dialog.set_filter (filter)
class PreviewWindow (gtk.Window):
def __init__ (self, parent, image):
super (PreviewWindow, self).__init__ ()
self.set_modal (True)
self.set_transient_for (parent)
self.set_title ("Wallpaper Creator - Preview")
self.pixbuf = pilimage_to_pixbuf (image)
box = gtk.VBox ()
box.pack_start (gtk.image_new_from_pixbuf (self.pixbuf), True, True)
hbox = gtk.HBox ()
cancel_button = gtk.Button (stock = gtk.STOCK_CANCEL)
cancel_button.connect ("clicked", self.on_cancel)
save_button = gtk.Button (stock = gtk.STOCK_SAVE)
save_button.connect ("clicked", self.on_save)
hbox.pack_end (cancel_button, False, False)
hbox.pack_end (save_button, False, False)
box.pack_start (hbox, False, False)
self.add (box)
def on_save (self, widget):
dialog = gtk.FileChooserDialog (title = "Save to...", parent = self,
action = gtk.FILE_CHOOSER_ACTION_SAVE,
buttons = (gtk.STOCK_CANCEL,
gtk.RESPONSE_CANCEL,
gtk.STOCK_OPEN,
gtk.RESPONSE_OK))
add_image_filters (dialog)
response = dialog.run ()
if response == gtk.RESPONSE_OK:
path = dialog.get_filename ()
if path.lower ().endswith (".png"):
self.pixbuf.save (path, "png")
else:
self.pixbuf.save (path, "jpeg", {"quality": "95"})
self.destroy ()
dialog.destroy ()
def on_cancel (self, widget):
self.destroy ()
def load_files (window, table):
dialog = gtk.FileChooserDialog (title = "Open images", parent = window,
action = gtk.FILE_CHOOSER_ACTION_OPEN,
buttons = (gtk.STOCK_CANCEL,
gtk.RESPONSE_CANCEL,
gtk.STOCK_OPEN,
gtk.RESPONSE_OK))
dialog.set_select_multiple (True)
add_image_filters (dialog)
if dialog.run () == gtk.RESPONSE_OK:
filenames = dialog.get_filenames ()
else:
filenames = None
dialog.destroy ()
if filenames:
table.add_files (filenames)
def make_wallpaper (window, table):
image = generator.assemble (table.get_selection ())
preview = PreviewWindow (window, image)
preview.show_all ()
def main ():
global mainWindow
builder = gtk.Builder ()
builder.add_from_file ("wpcreator.gtkbuilder")
builder.get_object ("targetWidthSpin").set_value (target_width)
builder.get_object ("targetHeightSpin").set_value (target_height)
table = ImageTable ()
builder.get_object ("scroller").add_with_viewport (table)
mainWindow = builder.get_object ("mainWindow")
mainWindow.set_default_size (800, 600)
mainWindow.connect ("delete-event", gtk.main_quit)
handlers = {"load_files": lambda widget: load_files (mainWindow, table),
"make_wallpaper": lambda widget: make_wallpaper (mainWindow,
table)}
builder.connect_signals (handlers)
mainWindow.show_all ()
gtk.main ()
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