class SimpleManager:
"""Manage a program using the context by many having functions that can be
overloaded to make simple and fast programs.
This process allow the user to think directly about what the program does,
instead of focusing on how to display things.
The way it works is by making the main class of the program inheriting from
this one."""
def __init__(self, name="SimpleManager", **kwargs):
"""Create a context manager with the optional name."""
self.context = Context(name=name, **kwargs)
self.pause = False
def __call__(self):
"""Call the main loop."""
while self.context.open:
self.events()
if not self.pause:
self.update()
self.show()
def events(self):
"""Deal with all the events."""
for event in pygame.event.get():
if event.type == pygame.QUIT:
self.context.open = False
if event.type == KEYDOWN:
if event.key == K_ESCAPE:
self.context.open = False
if event.key == K_SPACE:
self.pause = not (self.pause)
if event.key == K_f:
self.context.switch() # Set or reverse fullscreen
if event.type == MOUSEBUTTONDOWN:
if event.button == 4:
self.context.draw.plane.zoom([1.1, 1.1])
if event.button == 5:
self.context.draw.plane.zoom([0.9, 0.9])
def update(self):
"""Update the context manager."""
def show(self):
"""Show the context manager."""
self.context.refresh()
self.context.control()
self.context.flip()
class Manager:
def __init__(self, name="Manager", dt=10e-3, **kwargs):
"""Create a manager using a context, this methods it to be overloaded."""
self.context = Context(name=name, **kwargs)
self.count = self.context.count
self.pause = False
self.dt = dt
# Typing stuff
self.typing = False
self.alphabet = "abcdefghijklmnopqrstuvwxyz"
self.caps_numbers = ")!@#$%^&*("
self.numbers = "0123456789"
self.typing = False
self.shiftlock = False
self.capslock = False
self.altlock = False
def __str__(self):
"""Return the string representation of the manager."""
return type(self).__name__ + "(\n{}\n)".format("\n".join(
map(lambda x: ":".join(map(str, x)), self.__dict__.items())))
def __call__(self):
"""Call the main loop, this method is to be overloaded."""
self.main()
def main(self):
"""Main loop of the simple manager."""
self.setup() # Name choices inspired from processing
while self.context.open:
self.loop()
def setup(self):
"""Code executed before the loop."""
pass
def loop(self):
"""Code executed during the loop."""
self.eventsLoop()
self.updateLoop()
self.showLoop()
def eventsLoop(self):
"""Deal with the events in the loop."""
for event in pygame.event.get():
self.react(event)
def react(self, event):
"""React to the pygame events."""
if event.type == QUIT:
self.switchQuit()
elif event.type == KEYDOWN:
self.reactKeyDown(event.key)
elif event.type == KEYUP:
self.reactKeyUp(event.key)
elif event.type == MOUSEBUTTONDOWN:
self.reactMouseButtonDown(event.button, event.pos)
elif event.type == MOUSEBUTTONUP:
self.reactMouseButtonUp(event.button, event.pos)
elif event.type == MOUSEMOTION:
self.reactMouseMotion(event.pos)
def switchQuit(self):
"""React to a quit event."""
self.context.open = not (self.context.open)
def reactKeyDown(self, key):
"""React to a keydown event."""
self.reactAlways(key)
if self.typing:
self.reactTyping(key)
else:
self.reactMain(key)
def reactKeyUp(self, key):
"""React to a keyup event."""
pass
def reactAlways(self, key):
"""React to a key whether or not the typing mode is on."""
# print(key) for debugging the keys
if key == K_ESCAPE:
self.switchQuit()
if key == K_SLASH or key == K_BACKSLASH:
if not self.typing:
self.context.console("Typing activated.")
self.typing = True
if key == K_BACKQUOTE:
self.switchTyping()
def reactLock(self, key):
"""React to a locking key."""
if key == K_CAPSLOCK:
self.capslock = not (self.capslock)
elif key == K_LSHIFT or key == K_RSHIFT:
self.shiftlock = True
elif key == K_LALT or key == K_RALT:
self.altlock = True
def reactTyping(self, key):
"""React to a typing event."""
self.reactLock(key)
if self.altlock:
self.reactAltCase(key)
elif self.capslock or self.shiftlock:
self.reactUpperCase(key)
else:
self.reactLowerCase(key)
if key == K_SPACE:
self.write(" ")
elif key == 8:
self.delete()
if key == K_LCTRL:
self.context.console.nextArg()
elif key == K_UP:
self.context.console.back()
elif key == K_DOWN:
self.context.console.forward()
elif key == K_RETURN:
self.eval()
self.context.console.nextLine()
def eval(self):
"""Execute a line."""
content = self.context.console.line.content
if content[0] == "/":
for command in content[1:]:
try:
self.context.console(str(eval(command)))
except:
self.context.console("Invalid command.")
if content[0] == "\\":
for command in content[1:]:
try:
exec(command)
self.context.console("Command " + command + " executed.")
except Exception as e:
self.context.console(str(e))
self.context.console.eval()
def reactAltCase(self, key):
"""React when typing with alt key pressed."""
if key == K_e:
self.write("`") # Stupid
elif key == 167:
self.write("´")
def reactLowerCase(self, key):
"""React when typing in lower case."""
d = {
K_COMMA: ",",
K_PERIOD: ".",
K_SEMICOLON: ";",
K_LEFTBRACKET: "[",
K_RIGHTBRACKET: "]",
39: "'",
45: "-",
K_EQUALS: "="
}
if 48 <= key <= 57:
self.write(self.numbers[key - 48])
elif 97 <= key <= 122:
self.write(self.alphabet[key - 97])
elif key in d:
self.write(d[key])
elif key == K_SLASH:
if not self.context.console.line.empty:
self.context.console.nextLine()
self.write("/")
self.context.console.nextArg()
elif key == K_BACKSLASH:
if not self.context.console.line.empty:
self.context.console.nextLine()
self.write("\\")
self.context.console.nextArg()
def reactUpperCase(self, key):
"""React to a key when typing in uppercase."""
d = {59: ":''", 44: "<", 46: ">", 47: "?", 45: "_", 39: "\"", 61: "+"}
if 48 <= key <= 57:
self.write(self.caps_numbers[key - 48])
elif 97 <= key <= 122:
self.write(self.alphabet[key - 97].upper())
elif key in d:
self.write(d[key])
def write(self, c):
"""Write some content."""
self.context.console.lines[-1].content[-1] += c
self.context.console.lines[-1].refresh()
self.shiftlock = False
self.altlock = False
def delete(self, n=1):
"""Delete some content."""
self.context.console.lines[-1].content[
-1] = self.context.console.lines[-1].content[-1][:-n]
self.context.console.lines[-1].refresh()
def reactMain(self, key):
"""React as usual when not typing."""
if key == K_f:
self.switchFullscreen()
if key == K_1:
self.switchCapture()
if key == K_2:
self.switchCaptureWriting()
if key == K_3:
self.switchScreenWriting()
if key == K_LALT:
self.switchPause()
def switchTyping(self):
"""Switch the typing mode."""
self.typing = not (self.typing)
if self.typing:
self.context.console("Typing activated.")
self.context.console.nextLine()
else:
self.context.console("Typing deactivated.")
def switchScreenWriting(self):
"""Switch the screen writing mode."""
if self.context.camera.screen_writing:
self.context.camera.screen_writer.release()
self.context.camera.switchScreenWriting()
if self.context.camera.screen_writing:
self.context.console('The screen is being written.')
else:
self.context.console('The screen video has been released')
self.context.console('and is not being written anymore.')
def switchCaptureWriting(self):
"""Switch the capture writing mode."""
if self.context.camera.capture_writing:
self.context.camera.capture_writer.release()
self.context.camera.switchCaptureWriting()
if self.context.camera.capture_writing:
self.context.console('The capture is being written.')
else:
self.context.console('The capture video has been released')
self.context.console('and is not being written anymore.')
def switchPause(self):
"""React to a pause event."""
self.pause = not self.pause
if self.pause:
self.context.console('The system is paused.')
else:
self.context.console('The system is unpaused.')
def switchCapture(self):
"""React to a capture event."""
self.context.camera.switchCapture()
if self.context.camera.capturing:
self.context.console('The camera capture is turned on.')
else:
self.context.console('The camera capture is turned off.')
def switchFullscreen(self):
"""React to a fullscreen event."""
self.context.switch()
if self.context.fullscreen:
self.context.console("The fullscreen mode is set.")
else:
self.context.console("The fullscreen mode is unset.")
def reactMouseButtonDown(self, button, position):
"""React to a mouse button down event."""
if button == 4:
self.context.draw.plane.zoom([1.1, 1.1])
if button == 5:
self.context.draw.plane.zoom([0.9, 0.9])
def reactMouseButtonUp(self, button, position):
"""React to a mouse button up event."""
pass
def reactMouseMotion(self, position):
"""React to a mouse motion event."""
pass
def updateLoop(self):
"""Update the manager while in the loop."""
if not self.pause:
self.update()
self.count()
self.context.camera.write(
) # Write on the camera writers if they are on
def update(self):
"""Update the components of the manager of the loop. This method is to be
overloaded."""
pass
def showLoop(self):
"""Show the graphical components and deal with the context in the loop."""
if not self.typing: # Ugly fix for easier pratical use
self.context.control()
self.context.clear()
self.context.show()
self.show()
self.showCamera()
self.context.console.show()
self.context.flip()
def show(self):
"""Show the graphical components on the context. This method is to be
overloaded."""
pass
def showCamera(self):
"""Show the camera if active."""
if self.context.camera.capturing:
self.context.camera.show()
def counter():
doc = "The Counter property."
def fget(self):
"""Bind the counter of the manager to the one of the context."""
return self.context.counter
def fset(self, counter):
"""Set the counter of the context."""
self.context.counter = counter
return locals()
counter = property(**counter())
