/
gui.py
executable file
·319 lines (275 loc) · 12.2 KB
/
gui.py
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#!/usr/bin/env python
import gtk
import gobject
import threading
from newton import NewtonFractal as Newton
from piltopixbuf import image_to_pixbuf
from numpy import *
from os.path import expanduser, join, abspath, dirname
BASEPATH = abspath(dirname(__file__))
import colormaps
gobject.threads_init()
class FractalThread(threading.Thread):
def __init__(self, parent):
super(FractalThread, self).__init__()
self.parent = parent
def update_image(self):
self.parent.img.queue_draw()
def run(self):
try:
gobject.idle_add(self.parent.status_busy)
self.parent.buffer = image_to_pixbuf(self.parent.get_newton().as_PIL_image(mode=self.parent.settings['mode']))
self.parent.pixbuf_mask = self.parent.buffer.copy().render_pixmap_and_mask()
self.parent.img.set_from_pixmap(*self.parent.pixbuf_mask)
except:
raise
finally:
gobject.idle_add(self.update_image)
gobject.idle_add(self.parent.status_ok)
class GUI:
newton = None
pixbuf = None
buffer = None
dragging = False
clickx = 0
clicky = 0
defaults = {'xrange': [-1.5, 1.5], 'yrange': [-1.5, 1.5]}
settings = {'colormap': colormaps.reds, 'mode': 'iterations'}
def __init__(self):
self._init_gui()
self._init_savedialog()
self.update()
self.win.show_all()
def _init_toolbar_items(self):
icontheme = gtk.icon_theme_get_default()
for item in self.toolbar_items:
if(isinstance(item, str)):
if item == 'sep':
self.toolbar.insert(gtk.SeparatorToolItem(), -1)
else:
image = gtk.Image()
image.set_from_pixbuf(icontheme.load_icon(item[3], 24, 0))
toolbutton = gtk.ToolButton(icon_widget=image, label=item[0])
toolbutton.set_tooltip_text(item[1])
toolbutton.set_homogeneous(False); toolbutton.set_expand(False)
toolbutton.connect("clicked", item[4])
self.toolbar.insert(toolbutton, -1)
def _init_toolbar(self):
self.toolbar_items = [
['Save As...', 'Export High Quality', 'Private', 'document-save-as', self.action_export],
# ['Reset', 'Reset fractal', 'Private', 'gtk-clear', statusfunc],
['Zoom in', 'Zoom in', 'Private', 'zoom-in', self.zoom_in],
['Zoom out', 'Zoom out', 'Private', 'zoom-out', self.zoom_out],
['Reset zoom', 'Reset zoom', 'Private', 'zoom-original', self.zoom_reset],
['Set Iterations', 'Set the number of iterations', 'Private', 'gtk-preferences', self.set_iterations],
]
self.toolbar = gtk.Toolbar()
self._init_toolbar_items()
self.colormapButton = gtk.MenuToolButton(gtk.STOCK_SELECT_COLOR)
self.colormapButton.set_label("Colormap")
colormapMenu = gtk.Menu()
for name,map in colormaps.index:
item = gtk.MenuItem(name)
item.connect("activate", self.set_colormap, map)
item.show()
colormapMenu.append(item)
self.colormapButton.set_menu(colormapMenu)
self.toolbar.insert(self.colormapButton, -1)
self.modeButton = gtk.MenuToolButton(gtk.STOCK_INDEX)
self.modeButton.set_label("Mode")
modeMenu = gtk.Menu()
for mode in Newton.modes:
item = gtk.MenuItem(mode)
item.connect("activate", self.set_mode, mode)
item.show()
modeMenu.append(item)
self.modeButton.set_menu(modeMenu)
self.toolbar.insert(self.modeButton, -1)
self.toolbar.show_all()
return self.toolbar
def _init_gui(self):
self.win = gtk.Window(gtk.WINDOW_TOPLEVEL)
self.win.set_decorated(False)
self.vbox = gtk.VBox()
self.win.add(self.vbox)
self.win.set_default_size(500, 500)
self.win.set_title("Sorbi")
self.win.connect("delete_event", gtk.main_quit)
self.img = gtk.Image()
self.eventbox = gtk.EventBox()
self.eventbox.add(self.img)
self.eventbox.connect("button-press-event", self.mouse_start_drag)
self.eventbox.connect("button-release-event", self.mouse_end_drag)
self.eventbox.connect("motion-notify-event", self.mouse_move_event)
self.function_label = gtk.Label("Function: ")
self.function_box = gtk.Entry()
self.function_box.set_text("z**4 - 1")
self.derivative_label = gtk.Label("Derivative: ")
self.derivative_box = gtk.Entry()
self.derivative_box.set_text("4*z**3")
self.update_button = gtk.Button("Update")
self.update_button.connect("clicked", lambda w: self.update())
hbox = gtk.HBox()
hbox.pack_start(self.function_label)
hbox.pack_start(self.function_box)
hbox.pack_start(self.derivative_label)
hbox.pack_start(self.derivative_box)
hbox.pack_start(self.update_button, False, False, padding=5)
self.statusbar = gtk.Statusbar()
self.messid = self.statusbar.push(1, "Ready")
toolbarhbox = gtk.HBox(False)
self.progressImage = gtk.Image()
self.progressImage.set_from_file(join(BASEPATH, 'patience_static.png'))
self.progress_pixbuf = self.progressImage.get_pixbuf()
self.animation = gtk.gdk.PixbufAnimation(join(BASEPATH, 'patience.gif'))
toolbarhbox.pack_start(self.progressImage, False, False)
toolbarhbox.pack_start(self._init_toolbar())
self.vbox.pack_start(toolbarhbox, False, False)
self.vbox.pack_start(self.eventbox)
self.vbox.pack_start(hbox, False, False, padding=10)
self.vbox.pack_start(self.statusbar, False, False)
def status_busy(self):
self.progress_pixbuf = self.progressImage.get_pixbuf()
self.progressImage.set_from_animation(self.animation)
def status_ok(self):
self.progressImage.set_from_pixbuf(self.progress_pixbuf)
def update(self):
try:
self.func = eval("lambda z:" + self.function_box.get_text())
self.deri = eval("lambda z:" + self.derivative_box.get_text())
except:
raise
self._init_newton(force=True)
self.update_image()
def mouse_start_drag(self, widget, event):
self.dragging = True
self.clickx = event.x - (widget.allocation.width - self.img.get_pixmap()[0].get_size()[0])/2
self.clicky = event.y - (widget.allocation.height - self.img.get_pixmap()[0].get_size()[1])/2
def mouse_end_drag(self, widget, event):
'''run and hide, tbh'''
self.dragging = False
self.pixbuf_mask = self.buffer.copy().render_pixmap_and_mask()
self.img.set_from_pixmap(*self.pixbuf_mask)
self.img.queue_draw()
w = event.x - self.clickx - (widget.allocation.width - self.img.get_pixmap()[0].get_size()[0])/2
h = event.y - self.clicky - (widget.allocation.height - self.img.get_pixmap()[0].get_size()[1])/2
width, height = self.img.get_pixmap()[0].get_size()
ywid = self.get_newton().yrange[1] - self.get_newton().yrange[0]
xwid = self.get_newton().xrange[1] - self.get_newton().xrange[0]
self.get_newton().yrange[1] -= (width - w - self.clickx)/width * ywid
self.get_newton().yrange[0] += self.clickx / width * ywid
self.get_newton().xrange[1] -= (height - h - self.clicky)/height * xwid
self.get_newton().xrange[0] += self.clicky / height * xwid
self.update_image()
def _init_newton(self, force = False):
if (not self.newton) or force:
self.newton = Newton(self.func, self.deri, status=self.update_statusbar,
colormap = self.settings['colormap'] )
def get_newton(self):
if not self.newton:
self._init_newton()
return self.newton
def mouse_move_event(self, widget, event):
if self.dragging:
gc = widget.window.new_gc()
gc.set_line_attributes(3, gtk.gdk.LINE_ON_OFF_DASH,
gtk.gdk.CAP_ROUND, gtk.gdk.JOIN_ROUND)
w = event.x - self.clickx - (widget.allocation.width - self.img.get_pixmap()[0].get_size()[0])/2
h = event.y - self.clicky - (widget.allocation.height - self.img.get_pixmap()[0].get_size()[1])/2
x,y = self.clickx, self.clicky
if w < 0:
x += w;w *= -1
if h < 0:
y += h; h *= -1
self.pixbuf_mask = self.buffer.copy().render_pixmap_and_mask()
self.pixbuf_mask[0].draw_rectangle(gc, False, x, y, w, h)
self.img.set_from_pixmap(*self.pixbuf_mask)
self.img.queue_draw()
def update_image(self):
thr = FractalThread(self)
thr.start()
def zoom_out(self, event):
self.get_newton().xrange *= 2
self.get_newton().yrange *= 2
self.update_image()
def zoom_in(self, event):
self.get_newton().xrange *= 0.5
self.get_newton().yrange *= 0.5
self.update_image()
def zoom_reset(self, event):
self.get_newton().set_xrange(*self.defaults['xrange'])
self.get_newton().set_yrange(*self.defaults['yrange'])
self.update_image()
def update_statusbar(self, message):
gobject.idle_add(self.update_status_message, message)
def update_status_message(self, message):
self.statusbar.remove(1, self.messid)
self.messid = self.statusbar.push(1, message)
def _init_savedialog(self):
filter = gtk.FileFilter()
filter.set_name("All files")
filter.add_pattern("*")
filter = gtk.FileFilter()
filter.set_name("PNG")
filter.add_pattern("*.png")
self.savedialog = gtk.FileChooserDialog("Export..",
None,gtk.FILE_CHOOSER_ACTION_SAVE,
(gtk.STOCK_CANCEL, gtk.RESPONSE_CANCEL,gtk.STOCK_SAVE, gtk.RESPONSE_OK))
self.savedialog.set_default_response(gtk.RESPONSE_OK)
self.savedialog.add_filter(filter)
self.savedialog.set_do_overwrite_confirmation(True)
def action_export(self, widget, data=None):
self.savedialog.set_current_folder(expanduser("~"))
response = self.savedialog.run()
if response == gtk.RESPONSE_OK:
filename = self.savedialog.get_filename()
t = threading.Timer(0.01, self.do_export, (filename,))
t.start()
self.savedialog.hide()
def do_export(self, filename):
#print "exporting to %s" % filename
gobject.idle_add(self.status_busy)
img = self.get_newton().as_PIL_image(width=1000, height=1000, mode=self.settings['mode'])
img.save(filename+".png")
gobject.idle_add(self.status_ok)
def set_colormap(self, widget, map):
self.settings['colormap'] = map
self.get_newton().colormap = map
print "setting map to", map
self.update_image()
def responseToDialog(entry, dialog, response):
dialog.response(response)
def set_iterations(self, widget):
dialog = gtk.MessageDialog(
None,
gtk.DIALOG_MODAL | gtk.DIALOG_DESTROY_WITH_PARENT,
gtk.MESSAGE_QUESTION,
gtk.BUTTONS_OK,
None)
dialog.set_markup('Number of iterations:')
entry = gtk.Entry()
entry.set_text("%s" % self.get_newton().maxit)
entry.connect("activate", self.responseToDialog, dialog, gtk.RESPONSE_OK)
hbox = gtk.HBox()
hbox.pack_start(gtk.Label("Iterations:"), False, 5, 5)
hbox.pack_end(entry)
dialog.format_secondary_markup("The more iterations, the slower the fractal rendering will be. \
If using iterations mode, as opposed to roots mode, setting this too high will result in a loss of contrast or chaotic coloring.")
dialog.vbox.pack_end(hbox, True, True, 0)
dialog.show_all()
dialog.run()
text = entry.get_text()
dialog.destroy()
try:
iterations = int(text)
if iterations > 0:
self.get_newton().maxit = iterations
self.update_image()
except:
pass
def set_mode(self, widget, mode):
self.settings['mode'] = mode
self.update_image()
if __name__ == '__main__':
gui = GUI()
gtk.main()