gtk version of cropgui
This commit is contained in:
Jeff Epler
parent
5e1082b8f7
commit
c823b5f992
4 changed files with 321 additions and 4 deletions
230
cropgtk.py
Executable file
230
cropgtk.py
Executable file
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#!/usr/bin/python
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# cropgui, a graphical front-end for lossless jpeg cropping
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# Copyright (C) 2009 Jeff Epler <jepler@unpythonic.net>
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# 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
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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from cropgui_common import *
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from cropgui_common import _
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import gobject
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import gtk
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import gtk.glade
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import filechooser
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import sys
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import traceback
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# otherwise, on hardy the user is shown spurious "[application] closed
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# unexpectedly" messages but denied the ability to actually "report [the]
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# problem"
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def excepthook(exc_type, exc_obj, exc_tb):
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try:
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w = app['window1']
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except NameError:
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w = None
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lines = traceback.format_exception(exc_type, exc_obj, exc_tb)
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m = gtk.MessageDialog(w,
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gtk.DIALOG_MODAL | gtk.DIALOG_DESTROY_WITH_PARENT,
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gtk.MESSAGE_ERROR, gtk.BUTTONS_OK,
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_("Stepconf encountered an error. The following "
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"information may be useful in troubleshooting:\n\n")
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+ "".join(lines))
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m.show()
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m.run()
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m.destroy()
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sys.excepthook = excepthook
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import cropgui_common
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gladefile = os.path.join(os.path.dirname(cropgui_common.__file__),
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"cropgui.glade")
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class DragManager(DragManagerBase):
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def __init__(self, g):
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self.g = g
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self.idle = None
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DragManagerBase.__init__(self)
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w = g['window1']
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i = g['eventbox1']
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i.connect('button-press-event', self.press)
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i.connect('motion-notify-event', self.motion)
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i.connect('button-release-event', self.release)
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w.connect('delete-event', self.close)
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w.connect('key-press-event', self.key)
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g['toolbutton1'].connect('clicked', self.done)
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g['toolbutton2'].connect('clicked', self.escape)
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def coords(self, event):
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return event.x, event.y
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def press(self, w, event):
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if event.type == gtk.gdk._2BUTTON_PRESS:
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return self.done()
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x, y = self.coords(event)
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self.drag_start(x, y, event.state & gtk.gdk.SHIFT_MASK)
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def motion(self, w, event):
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x, y = self.coords(event)
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self.drag_continue(x, y)
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def release(self, w, event):
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x, y = self.coords(event)
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self.drag_end(x, y)
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def done(self, *args):
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self.result = 1
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self.loop.quit()
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def escape(self, *args):
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self.result = 0
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self.loop.quit()
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def close(self, *args):
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self.result = -1
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self.loop.quit()
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def key(self, w, e):
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if e.keyval == gtk.keysyms.Escape: self.escape()
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elif e.keyval == gtk.keysyms.Return: self.done()
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def image_set(self):
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self.render()
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def render(self):
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if self.idle is None:
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self.idle = gobject.idle_add(self.do_render)
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def do_render(self):
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if not self.idle:
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return
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self.idle = None
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g = self.g
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i = g['image1']
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if not i: # app shutting down
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return
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if self.image is None:
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pixbuf = gtk.gdk.pixbuf_new_from_data('\0\0\0',
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gtk.gdk.COLORSPACE_RGB, 0, 8, 1, 1, 3)
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i.set_from_pixbuf(pixbuf)
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#i.set_size_request(max_w, max_h)
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g['pos_left'].set_text('---')
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g['pos_right'].set_text('---')
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g['pos_top'].set_text('---')
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g['pos_bottom'].set_text('---')
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g['pos_width'].set_text('---')
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g['pos_height'].set_text('---')
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g['pos_ratio'].set_text('---')
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else:
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rendered = self.rendered()
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rendered = rendered.convert('RGB')
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i.set_size_request(*rendered.size)
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pixbuf = gtk.gdk.pixbuf_new_from_data(rendered.tostring(),
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gtk.gdk.COLORSPACE_RGB, 0, 8,
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rendered.size[0], rendered.size[1], 3*rendered.size[0])
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ll, tt, rr, bb = self.get_corners()
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ratio = self.describe_ratio()
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g['pos_left'].set_text('%d' % ll)
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g['pos_right'].set_text('%d' % rr)
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g['pos_top'].set_text('%d' % tt)
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g['pos_bottom'].set_text('%d' % bb)
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g['pos_width'].set_text('%d' % (rr-ll))
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g['pos_height'].set_text('%d' % (bb-tt))
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g['pos_ratio'].set_text(self.describe_ratio())
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i.set_from_pixbuf(pixbuf)
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return False
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def wait(self):
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self.loop = gobject.MainLoop()
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self.result = -1
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self.loop.run()
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max_h = gtk.gdk.screen_height() - 64 - 64
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max_w = gtk.gdk.screen_width() - 64
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class App:
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def __init__(self):
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self.glade = gtk.glade.XML(gladefile)
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self.drag = DragManager(self)
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self.task = CropTask(self)
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def __getitem__(self, name):
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return self.glade.get_widget(name)
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def log(self, msg):
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s = self['statusbar1']
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if s:
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s.pop(0)
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s.push(0, msg)
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progress = log
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def set_busy(self, is_busy=True):
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pass
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def run(self):
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drag = self.drag
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task = self.task
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for image_name in self.image_names():
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self.set_busy()
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i = Image.open(image_name)
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iw, ih = i.size
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scale = 1
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while iw > max_w or ih > max_h:
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iw /= 2
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ih /= 2
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scale *= 2
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i.thumbnail((iw, ih))
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drag.image = i
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drag.round = max(1, 8/scale)
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drag.scale = scale
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self.set_busy(0)
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v = self.drag.wait()
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self.set_busy()
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if v == -1: break # user closed app
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if v == 0: continue # user hit "next" / escape
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base, ext = os.path.splitext(image_name)
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t, l, r, b = drag.top, drag.left, drag.right, drag.bottom
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t *= scale
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l *= scale
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r *= scale
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b *= scale
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cropspec = "%dx%d+%d+%d" % (r-l, b-t, l, t)
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target = base + "-crop" + ext
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task.add(['nice', 'jpegtran', '-crop', cropspec, image_name], target)
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def image_names(self):
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if len(sys.argv) > 1:
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return sys.argv[1:]
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else:
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return filechooser.prompt_open()
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app = App()
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try:
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app.run()
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finally:
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app.task.done()
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del app.task
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del app.drag
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8
cropgui.gladep
Normal file
8
cropgui.gladep
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<?xml version="1.0" standalone="no"?> <!--*- mode: xml -*-->
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<!DOCTYPE glade-project SYSTEM "http://glade.gnome.org/glade-project-2.0.dtd">
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<glade-project>
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<name>Cropgui</name>
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<program_name>cropgui</program_name>
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<gnome_support>FALSE</gnome_support>
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</glade-project>
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79
filechooser.py
Normal file
79
filechooser.py
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#!/usr/bin/env python
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PREVIEW_SIZE = 300
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import pygtk
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pygtk.require('2.0')
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import gtk
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import gobject
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import os
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import Image
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HIGH_WATER, LOW_WATER = 25, 5
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image_cache = {}
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def update_preview_cb(file_chooser, preview):
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file_chooser.set_preview_widget_active(True)
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filename = file_chooser.get_preview_filename()
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if os.path.isdir(filename):
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preview.set_from_stock(gtk.STOCK_DIRECTORY, gtk.ICON_SIZE_LARGE_TOOLBAR)
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elif filename in image_cache:
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preview.set_from_pixbuf(image_cache[filename])
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else:
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try:
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i = Image.open(filename)
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w, h = i.size
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i.thumbnail((PREVIEW_SIZE, PREVIEW_SIZE), Image.ANTIALIAS)
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i = i.convert('RGB')
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pixbuf = gtk.gdk.pixbuf_new_from_data(i.tostring(),
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gtk.gdk.COLORSPACE_RGB, 0, 8, i.size[0], i.size[1],
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i.size[0]*3)
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preview.set_from_pixbuf(pixbuf)
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if len(image_cache) > HIGH_WATER:
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while len(image_cache) > LOW_WATER:
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image_cache.popitem()
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image_cache[filename] = pixbuf
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except:
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preview.set_from_stock(gtk.STOCK_MISSING_IMAGE,
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gtk.ICON_SIZE_LARGE_TOOLBAR)
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raise
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def prompt_open():
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dialog = gtk.FileChooserDialog("Open..",
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None,
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gtk.FILE_CHOOSER_ACTION_OPEN,
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(gtk.STOCK_QUIT, gtk.RESPONSE_CANCEL,
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gtk.STOCK_OPEN, gtk.RESPONSE_OK))
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dialog.set_default_response(gtk.RESPONSE_OK)
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dialog.set_select_multiple(True)
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preview = gtk.Image()
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preview.set_size_request(PREVIEW_SIZE, PREVIEW_SIZE)
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dialog.set_preview_widget(preview)
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dialog.connect("update-preview", update_preview_cb, preview)
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filter = gtk.FileFilter()
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filter.set_name("JPEG Images")
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filter.add_mime_type("image/jpeg")
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filter.add_pattern("*.jpg")
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filter.add_pattern("*.jpeg")
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filter.add_pattern("*.JPG")
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filter.add_pattern("*.JPEG")
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dialog.add_filter(filter)
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filter = gtk.FileFilter()
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filter.set_name("All files")
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filter.add_pattern("*")
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dialog.add_filter(filter)
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response = dialog.run()
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if response == gtk.RESPONSE_OK:
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result = dialog.get_filenames()
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else:
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result = []
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dialog.destroy()
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return result
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if __name__ == '__main__':
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print prompt_open()
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@ -1,8 +1,8 @@
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#!/bin/sh
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cp cropgui.py $HOME/bin/cropgui
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cp log.py cropgui_common.py $HOME/lib/python
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if ! python -c 'import log' 2>&1; then
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echo "Failed to import log.py: add $HOME/lib/python to PYTHONPATH"
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cp cropgtk.py $HOME/bin/cropgui
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cp cropgui_common.py filechooser.py $HOME/lib/python
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if ! python -c 'import filechooser' 2>&1; then
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echo "Failed to import filechooser.py: add $HOME/lib/python to PYTHONPATH"
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fi
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chmod +x $HOME/bin/cropgui
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# installation script for cropgui, a graphical front-end for lossless jpeg
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