def startGUI(args):
"""Create the QT4 application and GUI.
A (possibly empty) list of command line options should be provided.
QT4 wil remove the recognized QT4 and X11 options.
"""
# This seems to be the only way to make sure the numeric conversion is
# always correct
#
QtCore.QLocale.setDefault(QtCore.QLocale.c())
#
#pf.options.debug = -1
pf.debug("Arguments passed to the QApplication: %s" % args)
pf.app = QtGui.QApplication(args)
#
pf.debug("Arguments left after constructing the QApplication: %s" % args)
pf.debug("Arguments left after constructing the QApplication: %s" % pf.app.arguments().join('\n'))
#pf.options.debug = 0
# As far as I have been testing this, the args passed to the Qt application are
# NOT acknowledged and neither are they removed!!
pf.app.setOrganizationName("pyformex.org")
pf.app.setOrganizationDomain("pyformex.org")
pf.app.setApplicationName("pyFormex")
pf.app.setApplicationVersion(pf.__version__)
## pf.settings = QtCore.QSettings("pyformex.org", "pyFormex")
## pf.settings.setValue("testje","testvalue")
#QtCore.QObject.connect(pf.app,QtCore.SIGNAL("lastWindowClosed()"),pf.app,QtCore.SLOT("quit()"))
QtCore.QObject.connect(pf.app,QtCore.SIGNAL("lastWindowClosed()"),quitGUI)
#QtCore.QObject.connect(pf.app,QtCore.SIGNAL("aboutToQuit()"),quitGUI)
# Check if we have DRI
viewport.setOpenGLFormat()
dri = viewport.opengl_format.directRendering()
# Check for existing pyFormex processes
windowname,running = findOldProcesses()
while len(running) > 0:
if len(running) >= 16:
print("Too many open pyFormex windows --- bailing out")
return -1
pids = [ i[2] for i in running if i[2] is not None ]
warning = """..
pyFormex is already running on this screen
------------------------------------------
A main pyFormex window already exists on your screen.
If you really intended to start another instance of pyFormex, you
can just continue now.
The window might however be a leftover from a previously crashed pyFormex
session, in which case you might not even see the window anymore, nor be able
to shut down that running process. In that case, you would better bail out now
and try to fix the problem by killing the related process(es).
If you think you have already killed those processes, you may check it by
rerunning the tests.
"""
actions = ['Really Continue','Rerun the tests','Bail out and fix the problem']
if pids:
warning += """
I have identified the process(es) by their PID as::
%s
If you trust me enough, you can also have me kill this processes for you.
""" % pids
actions[2:2] = ['Kill the running processes']
if dri:
answer = draw.ask(warning,actions)
else:
warning += """
I have detected that the Direct Rendering Infrastructure
is not activated on your system. Continuing with a second
instance of pyFormex may crash your XWindow system.
You should seriously consider to bail out now!!!
"""
answer = draw.warning(warning,actions)
if answer == 'Really Continue':
break # OK, Go ahead
elif answer == 'Rerun the tests':
windowname,running = findOldProcesses() # try again
elif answer == 'Kill the running processes':
killProcesses(pids)
windowname,running = findOldProcesses() # try again
else:
return -1 # I'm out of here!
# Load the splash image
splash = None
if os.path.exists(pf.cfg['gui/splash']):
pf.debug('Loading splash %s' % pf.cfg['gui/splash'])
splashimage = QtGui.QPixmap(pf.cfg['gui/splash'])
splash = QtGui.QSplashScreen(splashimage)
splash.setWindowFlags(QtCore.Qt.WindowStaysOnTopHint)
splash.setFont(QtGui.QFont("Helvetica",24))
splash.showMessage(pf.Version,QtCore.Qt.AlignHCenter,QtCore.Qt.red)
splash.show()
# create GUI, show it, run it
pf.GUI = GUI(windowname,
pf.cfg.get('gui/size',(800,600)),
pf.cfg.get('gui/pos',(0,0)),
pf.cfg.get('gui/bdsize',(800,600)),
)
# set the appearance
pf.GUI.setAppearence()
# setup the message board
pf.board = pf.GUI.board
pf.board.write("""%s (C) Benedict Verhegghe
pyFormex comes with ABSOLUTELY NO WARRANTY. This is free software, and you are welcome to redistribute it under the conditions of the GNU General Public License, version 3 or later. See Help->License or the file COPYING for details.
""" % pf.Version)
# Set interaction functions
def show_warning(message,category,filename,lineno,file=None,line=None):
"""Replace the default warnings.showwarning
We display the warnings using our interactive warning widget.
This feature can be turned off by setting
cfg['warnings/popup'] = False
"""
full_message = warnings.formatwarning(message,category,filename,lineno,line)
## from widgets import simpleInputItem as I
## res = draw.askItems([
## I('message',message,itemtype='label',text='warning'),
## I('filter',False,text='Suppress this message in future sessions'),
## ],actions=[('OK',)],legacy=False)
#print res
pf.message(full_message)
res,check = draw.showMessage(full_message,level='warning',check="Do not show this warning anymore in future sessions")
if check[0]:
oldfilters = pf.prefcfg['warnings/filters']
newfilters = oldfilters + [(str(message),)]
pf.prefcfg.update({'filters':newfilters},name='warnings')
## def format_warning(message,category,filename,lineno,line=None):
## """Replace the default warnings.formatwarning
## We display the warnings using our interactive warning widget.
## This feature can be turned off by setting
## cfg['nice_warnings'] = False
## """
## import messages
## message = messages.getMessage(message)
## message = """..
## pyFormex Warning
## ================
## %s
## `Called from:` %s `line:` %s
## """ % (message,filename,lineno)
## if line:
## message += "%s\n" % line
## return message
## if pf.cfg['warnings/nice']:
## warnings.formatwarning = format_warning
if pf.cfg['warnings/popup']:
warnings.showwarning = show_warning
pf.message = draw.message
pf.warning = draw.warning
# setup the canvas
pf.GUI.viewports.changeLayout(1)
pf.GUI.viewports.setCurrent(0)
pf.canvas = pf.GUI.viewports.current
draw.reset()
# setup the status bar
pf.GUI.addInputBox()
pf.GUI.toggleInputBox(False)
pf.GUI.addCoordsTracker()
pf.GUI.toggleCoordsTracker(pf.cfg.get('gui/coordsbox',False))
pf.debug("Using window name %s" % pf.GUI.windowTitle())
# Create additional menus (put them in a list to save)
# History Menu
pf.GUI.history = scriptMenu.ScriptMenu('History',files=pf.cfg['gui/history'],max=pf.cfg['gui/history_max'])
if pf.cfg.get('gui/history_in_main_menu',False):
before = pf.GUI.menu.item('help')
pf.GUI.menu.insertMenu(before,pf.GUI.history)
else:
filemenu = pf.GUI.menu.item('file')
before = filemenu.item('---1')
filemenu.insertMenu(before,pf.GUI.history)
# Scripts menu
pf.GUI.scriptmenu = scriptMenu.createScriptMenu(pf.GUI.menu,before='help')
# Create databases
createDatabases()
# PLugin menus
import plugins
## filemenu = pf.GUI.menu.item('file')
## pf.gui.saveobj = plugins.create_plugin_menus(filemenu,before='options')
## # Load configured plugins, ignore if not found
plugins.loadConfiguredPlugins()
#for p in pf.cfg['gui/plugins']:
# plugins.load(p)
pf.GUI.setBusy(False)
pf.GUI.addStatusBarButtons()
# remove the splash window
if splash is not None:
splash.finish(pf.GUI)
pf.GUI.setBusy(False)
if os.path.isdir(pf.cfg['workdir']):
# Make the workdir the current dir
os.chdir(pf.cfg['workdir'])
pf.debug("Setting workdir to %s" % pf.cfg['workdir'])
else:
# Save the current dir as workdir
prefMenu.updateSettings({'workdir':os.getcwd(),'Save changes':True})
pf.GUI.show()
pf.GUI.update()
pf.app_started = True
pf.GUI.processEvents()
return 0
def runApp(args):
"""Create and run the qt application."""
#
# FIX FOR A BUG IN NUMPY (It's always sane anyway)
#
import locale
GD.debug("LC_NUMERIC = %s" % locale.setlocale(locale.LC_NUMERIC))
#
GD.app = QtGui.QApplication(args)
#
GD.debug("LC_NUMERIC = %s" % locale.setlocale(locale.LC_NUMERIC))
locale.setlocale(locale.LC_NUMERIC, 'C')
GD.debug("LC_NUMERIC = %s" % locale.setlocale(locale.LC_NUMERIC))
#
#
#
QtCore.QObject.connect(GD.app,QtCore.SIGNAL("lastWindowClosed()"),GD.app,QtCore.SLOT("quit()"))
QtCore.QObject.connect(GD.app,QtCore.SIGNAL("aboutToQuit()"),quit)
# Load the splash image
splash = None
if os.path.exists(GD.cfg['gui/splash']):
GD.debug('Loading splash %s' % GD.cfg['gui/splash'])
splashimage = QtGui.QPixmap(GD.cfg['gui/splash'])
splash = QtGui.QSplashScreen(splashimage)
splash.setWindowFlags(QtCore.Qt.WindowStaysOnTopHint)
splash.setFont(QtGui.QFont("Helvetica",24))
splash.showMessage(GD.Version,QtCore.Qt.AlignHCenter,QtCore.Qt.red)
splash.show()
# create GUI, show it, run it
viewport.setOpenGLFormat()
dri = viewport.opengl_format.directRendering()
windowname = GD.Version
count = 0
while windowExists(windowname):
if count > 255:
print "Can not open the main window --- bailing out"
return 1
count += 1
windowname = '%s (%s)' % (GD.Version,count)
if count > 0:
warning = """
Another instance of pyFormex is already running
on this screen. This may be a leftover from a
previously crashed program. In that case you should
bail out now and first kill the crashed program.
On the other hand, if you really want to run another
pyFormex in parallel, you can just continue now.
"""
actions = ['Really Continue','Bail out and fix the problem']
if dri:
answer = draw.ask(warning,actions)
if not dri:
warning += """
I have detected that the Direct Rendering Infrastructure
is not activated on your system. Continuing with a second
instance of pyFormex may crash you XWindow system.
You should seriously consider to bail out now!!!
"""
answer = draw.warning(warning,actions)
if answer != 'Really Continue':
return 1
GD.gui = GUI(windowname,
GD.cfg.get('gui/size',(800,600)),
GD.cfg.get('gui/pos',(0,0)),
GD.cfg.get('gui/bdsize',(800,600))
)
# set the appearence
GD.gui.setStyle(GD.cfg.get('gui/style','Plastique'))
font = GD.cfg.get('gui/font',None)
if font:
GD.gui.setFont(font)
else:
fontfamily = GD.cfg.get('gui/fontfamily',None)
if fontfamily:
GD.gui.setFontFamily(fontfamily)
fontsize = GD.cfg.get('gui/fontsize',None)
if fontsize:
GD.gui.setFontSize(fontsize)
GD.gui.viewports.changeLayout(1)
GD.gui.viewports.setCurrent(0)
GD.board = GD.gui.board
GD.board.write("""%s (C) Benedict Verhegghe
pyFormex comes with ABSOLUTELY NO WARRANTY. This is free software,
and you are welcome to redistribute it under the conditions of the
GNU General Public License, version 3 or later.
See Help->License or the file COPYING for details.
""" % GD.Version)
GD.gui.show()
GD.debug("Using window name %s" % GD.gui.windowTitle())
# Create additional menus (put them in a list to save)
# History Menu
history = GD.cfg.get('history',None)
if type(history) == list:
GD.gui.history = scriptsMenu.ScriptsMenu('History',files=history,max=20)
if GD.cfg.get('gui/history_in_main_menu',False):
before = GD.gui.menu.item('help').menuAction()
GD.gui.menu.insertMenu(before,GD.gui.history)
else:
filemenu = GD.gui.menu.item('file')
before = filemenu.item('---1')
filemenu.insertMenu(before,GD.gui.history)
# Script menu
scriptmenu = createScriptMenu()
# Set interaction functions
GD.message = draw.message
GD.warning = draw.warning
draw.reset()
# Load plugins, ignore if not found
import plugins
for p in GD.cfg.get('gui/plugins',[]):
try:
m = getattr(plugins,p)
if hasattr(m,'show_menu'):
m.show_menu()
except:
GD.debug('ERROR while loading plugin %s' % p)
GD.gui.setBusy(False)
GD.gui.update()
GD.gui.addStatusBarButtons()
# remove the splash window
if splash is not None:
splash.finish(GD.gui)
GD.gui.setBusy(False)
GD.gui.update()
if os.path.isdir(GD.cfg['workdir']):
# Make the workdir the current dir
os.chdir(GD.cfg['workdir'])
else:
# Save the current dir as workdir
GD.cfg['workdir'] = os.getcwd()
GD.app_started = True
if GD.gui.easter_egg:
draw.playScript(utils.mergeme(*GD.gui.easter_egg))
# remaining args are interpreted as scripts and their parameters
script.runApp(args)
# Go into interactive mode
GD.debug("Start main loop")
GD.app.exec_()
GD.debug("Exit main loop")
return 0
def runApp(args):
"""Create and run the qt application."""
GD.app = QtGui.QApplication(args)
QtCore.QObject.connect(GD.app,QtCore.SIGNAL("lastWindowClosed()"),GD.app,QtCore.SLOT("quit()"))
QtCore.QObject.connect(GD.app,QtCore.SIGNAL("aboutToQuit()"),quit)
# Set some globals
GD.image_formats_qt = map(str,QtGui.QImageWriter.supportedImageFormats())
GD.image_formats_qtr = map(str,QtGui.QImageReader.supportedImageFormats())
if GD.cfg.get('imagesfromeps',False):
GD.image_formats_qt = []
if GD.options.debug:
print "Qt image types for saving: ",GD.image_formats_qt
print "Qt image types for input: ",GD.image_formats_qtr
print "gl2ps image types:",GD.image_formats_gl2ps
print "image types converted from EPS:",GD.image_formats_fromeps
# Load the splash image
splash = None
if os.path.exists(GD.cfg['gui/splash']):
GD.debug('Loading splash %s' % GD.cfg['gui/splash'])
splashimage = QtGui.QPixmap(GD.cfg['gui/splash'])
splash = QtGui.QSplashScreen(splashimage)
splash.setWindowFlags(QtCore.Qt.WindowStaysOnTopHint)
splash.setFont(QtGui.QFont("Helvetica",24))
splash.showMessage(GD.Version,QtCore.Qt.AlignHCenter,QtCore.Qt.red)
splash.show()
# create GUI, show it, run it
viewport.setOpenGLFormat()
dri = viewport.opengl_format.directRendering()
windowname = GD.Version
count = 0
while windowExists(windowname):
if count > 255:
print "Can not open the main window --- bailing out"
return 1
count += 1
windowname = '%s (%s)' % (GD.Version,count)
if count > 0:
warning = """
Another instance of pyFormex is already running
on this screen. This may be a leftover from a
previously crashed program. In that case you should
bail out now and first kill the crashed program.
On the other hand, if you really want to run another
pyFormex in parallel, you can just continue now.
"""
actions = ['Really Continue','Bail out and fix the problem']
if dri:
answer = draw.ask(warning,actions)
if not dri:
warning += """
I have detected that the Direct Rendering Infrastructure
is not activated on your system. Continuing with a second
instance of pyFormex may crash you XWindow system.
You should seriously consider to bail out now!!!
"""
answer = draw.warning(warning,actions)
if answer != 'Really Continue':
return 1
GD.gui = GUI(windowname,
GD.cfg.get('gui/size',(800,600)),
GD.cfg.get('gui/pos',(0,0)),
GD.cfg.get('gui/bdsize',(800,600))
)
# set the appearence
GD.gui.setStyle(GD.cfg.get('gui/style','Plastique'))
font = GD.cfg.get('gui/font',None)
if font:
GD.gui.setFont(font)
else:
fontfamily = GD.cfg.get('gui/fontfamily',None)
if fontfamily:
GD.gui.setFontFamily(fontfamily)
fontsize = GD.cfg.get('gui/fontsize',None)
if fontsize:
GD.gui.setFontSize(fontsize)
GD.gui.viewports.changeLayout(1)
GD.gui.viewports.setCurrent(0)
GD.board = GD.gui.board
GD.board.write("""%s (C) B. Verhegghe
pyFormex comes with ABSOLUTELY NO WARRANTY. This is free software,
and you are welcome to redistribute it under certain conditions.
See Help->License or the file COPYING for details.
""" % GD.Version)
GD.gui.show()
GD.debug("Using window name %s" % GD.gui.windowTitle())
# Create additional menus (put them in a list to save)
# History Menu
history = GD.cfg.get('history',None)
if type(history) == list:
GD.gui.history = scriptsMenu.ScriptsMenu('History',files=history,max=20)
if GD.cfg.get('gui/history_in_main_menu',False):
before = GD.gui.menu.item('help').menuAction()
GD.gui.menu.insertMenu(before,GD.gui.history)
else:
filemenu = GD.gui.menu.item('file')
before = filemenu.item('---1')
filemenu.insertMenu(before,GD.gui.history)
# Create a menu with pyFormex examples
# and insert it before the help menu
menus = []
scriptdirs = GD.cfg['scriptdirs']
knownscriptdirs = { 'examples': GD.cfg['examplesdir'] }
if GD.cfg.get('gui/separate_script_dirs',False):
# This will create separate menus for all scriptdirs
pass
else:
# The default is to collect all scriptdirs in a single main menu
if len(scriptdirs) > 1:
scriptsmenu = widgets.Menu('Scripts',GD.gui.menu)
before = GD.gui.menu.item('help').menuAction()
GD.gui.menu.insertMenu(before,scriptsmenu)
before = None
else:
scriptsmenu = GD.gui.menu
before = scriptsmenu.itemAction('help')
for title,dirname in scriptdirs:
GD.debug("Loading script dir %s" % dirname)
if not dirname:
dirname = knownscriptdirs[title.lower()]
if os.path.exists(dirname):
m = scriptsMenu.ScriptsMenu(title,dirname,autoplay=True)
scriptsmenu.insert_menu(m,before)
menus.append(m) # Needed to keep m linked to a name,
# else the menu is destroyed!
# Set interaction functions
GD.message = draw.message
GD.warning = draw.warning
draw.reset()
# Load plugins, ignore if not found
import plugins
for p in GD.cfg.get('gui/plugins',[]):
try:
m = getattr(plugins,p)
if hasattr(m,'show_menu'):
m.show_menu()
except:
GD.debug('ERROR while loading plugin %s' % p)
GD.gui.setBusy(False)
GD.gui.update()
# remove the splash window
if splash is not None:
splash.finish(GD.gui)
# Add the autorun script to the remaining args
if GD.gui.easter_egg:
draw.playScript(utils.mergeme(*GD.gui.easter_egg))
ar = GD.cfg.get('autorun','')
if ar:
if type(ar) == str:
ar = [ar]
args = ar + args
# remaining args are interpreted as scripts
for arg in args:
if os.path.exists(arg):
draw.play(arg)
GD.gui.setBusy(False)
GD.gui.update()
if os.path.isdir(GD.cfg['workdir']):
# Make the workdir the current dir
os.chdir(GD.cfg['workdir'])
else:
# Save the current dir as workdir
GD.cfg['workdir'] = os.getcwd()
GD.app_started = True
GD.app.exec_()
# Cleanup
draw.drawrelease()
GD.gui.setBusy(False)
# store the history and main window size/pos
GD.cfg['history'] = GD.gui.history.files
# Sometimes, a negative value is stored, making restart partially obscured
x,y = Pos(GD.gui)
if x < 0:
x = 0
if y < 0:
y = 0
GD.cfg.update({'size':Size(GD.gui),
'pos':(x,y),
'bdsize':Size(GD.gui.board),
},name='gui')
return 0
def hasDRI():
"""Check whether the OpenGL canvas has DRI enabled."""
viewport.setOpenGLFormat()
dri = viewport.opengl_format.directRendering()
return dri
