class EMGLWidget(QtOpenGL.QGLWidget): """ This class encapsulates the use of the EMParentWin to provide a status bar with a size grip on Mac. It also handles much of the inspector behavior, displays help in a web browser, and provides a self.busy attribute to prevent updateGL() from redrawing before all changes to display parameters are in place. """ def hide(self): if self.qt_parent: self.qt_parent.hide() def resize(self, w, h): if self.qt_parent: QtOpenGL.QGLWidget.resize(self, w, h) if get_platform()=="Darwin" : self.qt_parent.resize(w, h+22) else : self.qt_parent.resize(w+4, h+4) def show(self): if self.qt_parent: self.qt_parent.show() def setWindowTitle(self, title): if self.qt_parent: self.qt_parent.setWindowTitle(title) else: self.setWindowTitle(title) def __init__(self, parent=None,enable_timer=False, application_control=True,winid=None): if parent==None : self.qt_parent = EMParentWin(enable_timer) self.myparent=True # we allocated the parent, responsible for cleaning it up else: self.qt_parent=parent self.myparent=False # we did not allocate our parent, so we should not get rid of it QtOpenGL.QGLWidget.__init__(self,self.qt_parent) if self.myparent : self.qt_parent.setup(self) self.inspector = None # a Qt Widget for changing display parameters, setting the data, accessing metadata, etc. self.winid=winid # a 'unique' identifier for the window used to restore locations on the screen self.image_change_count = 0# this is important when the user has more than one display instance of the same image, for instance in e2.py if app = get_application() if app != None and application_control: app.attach_child(self) self.application_control = application_control self.file_name = "" self.disable_inspector = False self.makeCurrent() self.font_renderer = get_3d_font_renderer() if self.font_renderer == None : print "FTGL not initialized. Please make sure you have FTGL installed, and configured for compilation in CMake. If using a binary, please report a problem to [email protected]." sys.exit(1) self.font_renderer.set_face_size(16) self.font_renderer.set_font_mode(FTGLFontMode.TEXTURE) self.busy = False #updateGL() does nothing when self.busy == True def closeEvent(self, event): if self.inspector: self.inspector.close() QtOpenGL.QGLWidget.closeEvent(self, event) if self.myparent : self.qt_parent.close() self.emit(QtCore.SIGNAL("module_closed")) # this could be a useful signal, especially for something like the selector module, which can potentially show a lot of images but might want to close them all when it is closed event.accept() def display_web_help(self,url="http://blake.bcm.edu/emanwiki/e2display"): try: try: import webbrowser webbrowser.open(url) except: try: test = self.browser except: self.browser = QtWebKit.QWebView() self.browser.load(QtCore.QUrl()) self.browser.resize(800,800) if not self.browser.isVisible(): self.browser.show(url) except: pass def enable_inspector(self,val=True): self.disable_inspector = not val def show_inspector(self,force=0): if self.disable_inspector: return self.emit(QtCore.SIGNAL("inspector_shown")) # debug only app = get_application() if app == None: print "can't show an inspector with having an associated application" if not force and self.inspector==None : return if not self.inspector : self.inspector = self.get_inspector() if self.inspector == None: return # sometimes this happens if not app.child_is_attached(self.inspector): app.attach_child(self.inspector) app.show_specific(self.inspector) def update_inspector_texture(self): if self.inspector != None: self.inspector.update() def updateGL(self): if self.busy: return else: QtOpenGL.QGLWidget.updateGL(self)
class EMGLWidget(QtOpenGL.QGLWidget):
"""
This class encapsulates the use of the EMParentWin to provide a status bar with a size grip on Mac.
It also handles much of the inspector behavior, displays help in a web browser, and provides
a self.busy attribute to prevent updateGL() from redrawing before all changes to display parameters are in place.
"""
def hide(self):
if self.qt_parent:
self.qt_parent.hide()
def resize(self, w, h):
if self.qt_parent:
QtOpenGL.QGLWidget.resize(self, w, h)
if get_platform()=="Darwin" : self.qt_parent.resize(w, h+22)
else : self.qt_parent.resize(w+4, h+4)
def show(self):
if self.qt_parent:
self.qt_parent.show()
def setWindowTitle(self, title):
if self.qt_parent:
self.qt_parent.setWindowTitle(title)
else:
self.setWindowTitle(title)
def __init__(self, parent=None,enable_timer=False, application_control=True,winid=None):
if parent==None :
self.qt_parent = EMParentWin(enable_timer)
self.myparent=True # we allocated the parent, responsible for cleaning it up
else:
self.qt_parent=parent
self.myparent=False # we did not allocate our parent, so we should not get rid of it
QtOpenGL.QGLWidget.__init__(self,self.qt_parent)
if self.myparent : self.qt_parent.setup(self)
self.inspector = None # a Qt Widget for changing display parameters, setting the data, accessing metadata, etc.
self.winid=winid # a 'unique' identifier for the window used to restore locations on the screen
self.image_change_count = 0# this is important when the user has more than one display instance of the same image, for instance in e2.py if
app = get_application()
if app != None and application_control:
app.attach_child(self)
self.application_control = application_control
self.file_name = ""
self.disable_inspector = False
self.makeCurrent()
self.font_renderer = get_3d_font_renderer()
if self.font_renderer == None :
print("FTGL not initialized. Please make sure you have FTGL installed, and configured for compilation in CMake. If using a binary, please report a problem to [email protected].")
sys.exit(1)
self.font_renderer.set_face_size(16)
self.font_renderer.set_font_mode(FTGLFontMode.TEXTURE)
self.busy = False #updateGL() does nothing when self.busy == True
def closeEvent(self, event):
if self.inspector:
self.inspector.close()
QtOpenGL.QGLWidget.closeEvent(self, event)
if self.myparent : self.qt_parent.close()
self.emit(QtCore.SIGNAL("module_closed")) # this could be a useful signal, especially for something like the selector module, which can potentially show a lot of images but might want to close them all when it is closed
event.accept()
def display_web_help(self,url="http://blake.bcm.edu/emanwiki/e2display"):
try:
try:
import webbrowser
webbrowser.open(url)
except:
try:
test = self.browser
except:
self.browser = QtWebKit.QWebView()
self.browser.load(QtCore.QUrl())
self.browser.resize(800,800)
if not self.browser.isVisible(): self.browser.show(url)
except:
pass
def enable_inspector(self,val=True):
self.disable_inspector = not val
def show_inspector(self,force=0):
if self.disable_inspector:
return
self.emit(QtCore.SIGNAL("inspector_shown")) # debug only
app = get_application()
if app == None:
print("can't show an inspector with having an associated application")
if not force and self.inspector==None :
return
if not self.inspector :
self.inspector = self.get_inspector()
if self.inspector == None:
return # sometimes this happens
if not app.child_is_attached(self.inspector):
app.attach_child(self.inspector)
app.show_specific(self.inspector)
def update_inspector_texture(self):
if self.inspector != None:
self.inspector.update()
def updateGL(self):
if self.busy:
return
else:
QtOpenGL.QGLWidget.updateGL(self)
