def new_viewer(self, name=None, settings=None):
if not name:
self.count += 1
name = 'v%d' % self.count
if settings is None:
settings = self.preferences.createCategory('ipg_viewer')
settings.load(onError='silent')
settings.addDefaults(autocut_method='zscale')
# instantiate bindings loaded with users preferences
bclass = IPyNbImageView.bindingsClass
bindprefs = self.preferences.createCategory('bindings')
bd = bclass(self.logger, settings=bindprefs)
# create a ginga basic object for user interaction
fi = IPyNbImageView(self.logger, settings=settings,
render='widget', bindings=bd)
fi.enable_draw(False)
fi.set_callback('drag-drop', self.drop_file, name)
fi.set_bg(0.2, 0.2, 0.2)
fi.ui_setActive(True)
# expose the fits viewer to the shared namespace
self.kapp.namespace[name] = fi
# enable various interactive operations
bd = fi.get_bindings()
bd.enable_all(True)
# get the ginga Qt widget
w = fi.get_widget()
w.resize(512, 512)
# pack it into a qt window with a couple other buttons
vw = QtGui.QWidget()
vbox = QtGui.QVBoxLayout()
vbox.setContentsMargins(QtCore.QMargins(2, 2, 2, 2))
vbox.setSpacing(1)
vbox.addWidget(w, stretch=1)
# for simple WCS readout
self.readout = Readout(-1, 16)
readout = self.readout.get_widget()
fi.set_callback('none-move', self.motion, self.readout)
vbox.addWidget(readout, stretch=0,
alignment=QtCore.Qt.AlignCenter)
hbox = QtGui.QHBoxLayout()
hbox.setContentsMargins(QtCore.QMargins(4, 2, 4, 2))
wopen = QtGui.QPushButton("Open File")
def _open_file(name):
return lambda: self.open_file(name)
wopen.clicked.connect(_open_file(name))
wquit = QtGui.QPushButton("Close")
def _close(name):
return lambda: self.close_viewer(name)
wquit.clicked.connect(_close(name))
hbox.addStretch(1)
for w in (wopen, wquit):
hbox.addWidget(w, stretch=0)
hw = QtGui.QWidget()
hw.setLayout(hbox)
vbox.addWidget(hw, stretch=0)
vw.setLayout(vbox)
vw.resize(524, 540)
vw.setWindowTitle("Ginga: %s" % name)
self.viewers[name] = vw
vw.showNormal()
vw.raise_()
vw.activateWindow()
def new_viewer(self, name=None, settings=None):
if not name:
self.count += 1
name = 'v%d' % self.count
if settings is None:
settings = self.preferences.createCategory('ipg_viewer')
settings.load(onError='silent')
settings.addDefaults(autocut_method='zscale')
# instantiate bindings loaded with users preferences
bclass = IPyNbImageView.bindingsClass
bindprefs = self.preferences.createCategory('bindings')
bd = bclass(self.logger, settings=bindprefs)
# create a ginga basic object for user interaction
fi = IPyNbImageView(self.logger,
settings=settings,
render='widget',
bindings=bd)
fi.enable_draw(False)
fi.set_callback('drag-drop', self.drop_file, name)
fi.set_bg(0.2, 0.2, 0.2)
fi.ui_setActive(True)
# expose the fits viewer to the shared namespace
self.kapp.namespace[name] = fi
# enable various interactive operations
bd = fi.get_bindings()
bd.enable_all(True)
# get the ginga Qt widget
w = fi.get_widget()
w.resize(512, 512)
# pack it into a qt window with a couple other buttons
vw = QtGui.QWidget()
vbox = QtGui.QVBoxLayout()
vbox.setContentsMargins(QtCore.QMargins(2, 2, 2, 2))
vbox.setSpacing(1)
vbox.addWidget(w, stretch=1)
# for simple WCS readout
self.readout = Readout(-1, 16)
readout = self.readout.get_widget()
fi.set_callback('none-move', self.motion, self.readout)
vbox.addWidget(readout, stretch=0, alignment=QtCore.Qt.AlignCenter)
hbox = QtGui.QHBoxLayout()
hbox.setContentsMargins(QtCore.QMargins(4, 2, 4, 2))
wopen = QtGui.QPushButton("Open File")
def _open_file(name):
return lambda: self.open_file(name)
wopen.clicked.connect(_open_file(name))
wquit = QtGui.QPushButton("Close")
def _close(name):
return lambda: self.close_viewer(name)
wquit.clicked.connect(_close(name))
hbox.addStretch(1)
for w in (wopen, wquit):
hbox.addWidget(w, stretch=0)
hw = QtGui.QWidget()
hw.setLayout(hbox)
vbox.addWidget(hw, stretch=0)
vw.setLayout(vbox)
vw.resize(524, 540)
vw.setWindowTitle("Ginga: %s" % name)
self.viewers[name] = vw
vw.showNormal()
vw.raise_()
vw.activateWindow()
class StartMenu(QtGui.QMainWindow):
def __init__(self, logger, app, kapp, prefs):
super(StartMenu, self).__init__()
self.logger = logger
self.preferences = prefs
self.count = 0
self.viewers = {}
self.app = app
self.kapp = kapp
self.app.aboutToQuit.connect(self.quit)
vbox = QtGui.QVBoxLayout()
vbox.setContentsMargins(QtCore.QMargins(2, 2, 2, 2))
vbox.setSpacing(1)
hbox = QtGui.QHBoxLayout()
hbox.setContentsMargins(QtCore.QMargins(4, 2, 4, 2))
console = QtGui.QPushButton('Qt Console')
if self.kapp.ipkernel is None:
console.setEnabled(False)
console.clicked.connect(self.kapp.new_qt_console)
newfits = QtGui.QPushButton('New Viewer')
newfits.clicked.connect(self.new_viewer)
wquit = QtGui.QPushButton("Quit")
wquit.clicked.connect(self.quit)
hbox.addStretch(1)
for w in (console, newfits, wquit):
hbox.addWidget(w, stretch=0)
hw = QtGui.QWidget()
hw.setLayout(hbox)
vbox.addWidget(hw, stretch=0)
vw = QtGui.QWidget()
self.setCentralWidget(vw)
vw.setLayout(vbox)
self.setWindowTitle("Ginga IPython Console")
self.showNormal()
self.raise_()
self.activateWindow()
def new_viewer(self, name=None, settings=None):
if not name:
self.count += 1
name = 'v%d' % self.count
if settings is None:
settings = self.preferences.createCategory('ipg_viewer')
settings.load(onError='silent')
settings.addDefaults(autocut_method='zscale')
# instantiate bindings loaded with users preferences
bclass = IPyNbImageView.bindingsClass
bindprefs = self.preferences.createCategory('bindings')
bd = bclass(self.logger, settings=bindprefs)
# create a ginga basic object for user interaction
fi = IPyNbImageView(self.logger, settings=settings,
render='widget', bindings=bd)
fi.enable_draw(False)
fi.set_callback('drag-drop', self.drop_file, name)
fi.set_bg(0.2, 0.2, 0.2)
fi.ui_setActive(True)
# expose the fits viewer to the shared namespace
self.kapp.namespace[name] = fi
# enable various interactive operations
bd = fi.get_bindings()
bd.enable_all(True)
# get the ginga Qt widget
w = fi.get_widget()
w.resize(512, 512)
# pack it into a qt window with a couple other buttons
vw = QtGui.QWidget()
vbox = QtGui.QVBoxLayout()
vbox.setContentsMargins(QtCore.QMargins(2, 2, 2, 2))
vbox.setSpacing(1)
vbox.addWidget(w, stretch=1)
# for simple WCS readout
self.readout = Readout(-1, 16)
readout = self.readout.get_widget()
fi.set_callback('none-move', self.motion, self.readout)
vbox.addWidget(readout, stretch=0,
alignment=QtCore.Qt.AlignCenter)
hbox = QtGui.QHBoxLayout()
hbox.setContentsMargins(QtCore.QMargins(4, 2, 4, 2))
wopen = QtGui.QPushButton("Open File")
def _open_file(name):
return lambda: self.open_file(name)
wopen.clicked.connect(_open_file(name))
wquit = QtGui.QPushButton("Close")
def _close(name):
return lambda: self.close_viewer(name)
wquit.clicked.connect(_close(name))
hbox.addStretch(1)
for w in (wopen, wquit):
hbox.addWidget(w, stretch=0)
hw = QtGui.QWidget()
hw.setLayout(hbox)
vbox.addWidget(hw, stretch=0)
vw.setLayout(vbox)
vw.resize(524, 540)
vw.setWindowTitle("Ginga: %s" % name)
self.viewers[name] = vw
vw.showNormal()
vw.raise_()
vw.activateWindow()
def close_viewer(self, name):
w = self.viewers[name]
del self.viewers[name]
# remove variable from namespace
del self.kapp.namespace[name]
w.setParent(None)
w.deleteLater()
def load_file(self, filepath, name):
image = AstroImage.AstroImage(logger=self.logger)
image.load_file(filepath)
fi = self.kapp.namespace[name]
fi.set_image(image)
def open_file(self, name):
res = QtGui.QFileDialog.getOpenFileName(self, "Open FITS file",
".", "FITS files (*.fits)")
if isinstance(res, tuple):
fileName = res[0]
else:
fileName = str(res)
self.load_file(fileName, name)
def drop_file(self, viewer, paths, name):
fileName = paths[0]
self.load_file(fileName, name)
def motion(self, viewer, button, data_x, data_y, readout):
# Get the value under the data coordinates
try:
#value = viewer.get_data(data_x, data_y)
# We report the value across the pixel, even though the coords
# change halfway across the pixel
value = viewer.get_data(int(data_x+0.5), int(data_y+0.5))
except Exception:
value = None
fits_x, fits_y = data_x + 1, data_y + 1
# Calculate WCS RA
try:
# NOTE: image function operates on DATA space coords
image = viewer.get_image()
if image is None:
# No image loaded
return
ra_txt, dec_txt = image.pixtoradec(fits_x, fits_y,
format='str', coords='fits')
except Exception as e:
self.logger.warn("Bad coordinate conversion: %s" % (
str(e)))
ra_txt = 'BAD WCS'
dec_txt = 'BAD WCS'
text = "RA: %s DEC: %s X: %.2f Y: %.2f Value: %s" % (
ra_txt, dec_txt, fits_x, fits_y, value)
readout.set_text(text)
def quit(self):
names = list(self.viewers.keys())
for name in names:
self.close_viewer(name)
self.kapp.cleanup_consoles()
self.setParent(None)
self.deleteLater()
class StartMenu(QtGui.QMainWindow):
def __init__(self, logger, app, kapp, prefs):
super(StartMenu, self).__init__()
self.logger = logger
self.preferences = prefs
self.count = 0
self.viewers = {}
self.app = app
self.kapp = kapp
self.app.aboutToQuit.connect(self.quit)
vbox = QtGui.QVBoxLayout()
vbox.setContentsMargins(QtCore.QMargins(2, 2, 2, 2))
vbox.setSpacing(1)
hbox = QtGui.QHBoxLayout()
hbox.setContentsMargins(QtCore.QMargins(4, 2, 4, 2))
console = QtGui.QPushButton('Qt Console')
if self.kapp.ipkernel is None:
console.setEnabled(False)
console.clicked.connect(self.kapp.new_qt_console)
newfits = QtGui.QPushButton('New Viewer')
newfits.clicked.connect(self.new_viewer)
wquit = QtGui.QPushButton("Quit")
wquit.clicked.connect(self.quit)
hbox.addStretch(1)
for w in (console, newfits, wquit):
hbox.addWidget(w, stretch=0)
hw = QtGui.QWidget()
hw.setLayout(hbox)
vbox.addWidget(hw, stretch=0)
vw = QtGui.QWidget()
self.setCentralWidget(vw)
vw.setLayout(vbox)
self.setWindowTitle("Ginga IPython Console")
self.showNormal()
self.raise_()
self.activateWindow()
def new_viewer(self, name=None, settings=None):
if not name:
self.count += 1
name = 'v%d' % self.count
if settings is None:
settings = self.preferences.createCategory('ipg_viewer')
settings.load(onError='silent')
settings.addDefaults(autocut_method='zscale')
# instantiate bindings loaded with users preferences
bclass = IPyNbImageView.bindingsClass
bindprefs = self.preferences.createCategory('bindings')
bd = bclass(self.logger, settings=bindprefs)
# create a ginga basic object for user interaction
fi = IPyNbImageView(self.logger,
settings=settings,
render='widget',
bindings=bd)
fi.enable_draw(False)
fi.set_callback('drag-drop', self.drop_file, name)
fi.set_bg(0.2, 0.2, 0.2)
fi.ui_setActive(True)
# expose the fits viewer to the shared namespace
self.kapp.namespace[name] = fi
# enable various interactive operations
bd = fi.get_bindings()
bd.enable_all(True)
# get the ginga Qt widget
w = fi.get_widget()
w.resize(512, 512)
# pack it into a qt window with a couple other buttons
vw = QtGui.QWidget()
vbox = QtGui.QVBoxLayout()
vbox.setContentsMargins(QtCore.QMargins(2, 2, 2, 2))
vbox.setSpacing(1)
vbox.addWidget(w, stretch=1)
# for simple WCS readout
self.readout = Readout(-1, 16)
readout = self.readout.get_widget()
fi.set_callback('none-move', self.motion, self.readout)
vbox.addWidget(readout, stretch=0, alignment=QtCore.Qt.AlignCenter)
hbox = QtGui.QHBoxLayout()
hbox.setContentsMargins(QtCore.QMargins(4, 2, 4, 2))
wopen = QtGui.QPushButton("Open File")
def _open_file(name):
return lambda: self.open_file(name)
wopen.clicked.connect(_open_file(name))
wquit = QtGui.QPushButton("Close")
def _close(name):
return lambda: self.close_viewer(name)
wquit.clicked.connect(_close(name))
hbox.addStretch(1)
for w in (wopen, wquit):
hbox.addWidget(w, stretch=0)
hw = QtGui.QWidget()
hw.setLayout(hbox)
vbox.addWidget(hw, stretch=0)
vw.setLayout(vbox)
vw.resize(524, 540)
vw.setWindowTitle("Ginga: %s" % name)
self.viewers[name] = vw
vw.showNormal()
vw.raise_()
vw.activateWindow()
def close_viewer(self, name):
w = self.viewers[name]
del self.viewers[name]
# remove variable from namespace
del self.kapp.namespace[name]
w.setParent(None)
w.deleteLater()
def load_file(self, filepath, name):
image = AstroImage.AstroImage(logger=self.logger)
image.load_file(filepath)
fi = self.kapp.namespace[name]
fi.set_image(image)
def open_file(self, name):
res = QtGui.QFileDialog.getOpenFileName(self, "Open FITS file", ".",
"FITS files (*.fits)")
if isinstance(res, tuple):
fileName = res[0]
else:
fileName = str(res)
self.load_file(fileName, name)
def drop_file(self, viewer, paths, name):
fileName = paths[0]
self.load_file(fileName, name)
def motion(self, viewer, button, data_x, data_y, readout):
# Get the value under the data coordinates
try:
#value = viewer.get_data(data_x, data_y)
# We report the value across the pixel, even though the coords
# change halfway across the pixel
value = viewer.get_data(int(data_x + 0.5), int(data_y + 0.5))
except Exception:
value = None
fits_x, fits_y = data_x + 1, data_y + 1
# Calculate WCS RA
try:
# NOTE: image function operates on DATA space coords
image = viewer.get_image()
if image is None:
# No image loaded
return
ra_txt, dec_txt = image.pixtoradec(fits_x,
fits_y,
format='str',
coords='fits')
except Exception as e:
self.logger.warning("Bad coordinate conversion: %s" % (str(e)))
ra_txt = 'BAD WCS'
dec_txt = 'BAD WCS'
text = "RA: %s DEC: %s X: %.2f Y: %.2f Value: %s" % (
ra_txt, dec_txt, fits_x, fits_y, value)
readout.set_text(text)
def quit(self):
names = list(self.viewers.keys())
for name in names:
self.close_viewer(name)
self.kapp.cleanup_consoles()
self.setParent(None)
self.deleteLater()