How to use _capture_events method in Slash

Best Python code snippet using slash

baseclasses.py

Source:baseclasses.py

1# -*- coding: utf-8 -*-2# -- stdlib --3from collections import defaultdict4from functools import partial5from time import time6import logging7# -- third party --8from pyglet.gl import GL_BACK, GL_BLEND, GL_FILL, GL_FRONT, GL_LINE, GL_MODELVIEW9from pyglet.gl import GL_ONE_MINUS_SRC_ALPHA, GL_PROJECTION, GL_SRC_ALPHA, glBlendFunc, glClearColor10from pyglet.gl import glEnable, glLoadIdentity, glMatrixMode, glOrtho, glPolygonMode, glPopMatrix11from pyglet.gl import glPushMatrix, glTranslatef, glViewport12import pyglet13# -- own --14from utils import hook15# -- code --16WINDOW_WIDTH = 102417WINDOW_HEIGHT = 70018main_window = None19sched_queue = []20log = logging.getLogger('UI_Baseclasses')21class Control(pyglet.event.EventDispatcher):22    def __init__(self, x=0, y=0, width=0, height=0,23                 zindex=0, parent=None, can_focus=False, manual_draw=False,24                 *args, **kwargs):25        self.__dict__.update({26            'parent': parent,27            'x': x, 'y': y,28            '_w': width, '_h': height,29            'zindex': zindex,30            'can_focus': can_focus,31            'manual_draw': manual_draw,32        })33        self.__dict__.update(kwargs)34        self.control_list = []35        # control under cursor now, for tracking enter/leave events36        self._control_hit = None37        if parent:38            parent.add_control(self)39        else:40            self.parent = parent41            self.overlay = False42    def _set_w(self, v):43        self._w = v44        self.dispatch_event('on_resize', self._w, self._h)45    def _get_w(self):46        return self._w47    width = property(_get_w, _set_w)48    def _set_h(self, v):49        self._h = v50        self.dispatch_event('on_resize', self._w, self._h)51    def _get_h(self):52        return self._h53    height = property(_get_h, _set_h)54    def add_control(self, c):55        self.control_list.append(c)56        c.parent = self57        c.overlay = self if isinstance(self, Overlay) else self.overlay58    def remove_control(self, c):59        self.control_list.remove(c)60        c.parent = None61        c.overlay = None62    def delete(self):63        # cleanup captures64        if self.overlay:65            for l in self.overlay._capture_events.values():66                if self in l:67                    l.remove(self)68        for c in self.control_list[:]:69            c.delete()70        assert not self.control_list71        if self.parent:72            self.parent.remove_control(self)73    def controls_frompoint(self, x, y):74        l = []75        for c in self.control_list:76            if c.x <= x <= c.x + c.width and c.y <= y <= c.y + c.height:77                if c.hit_test(x-c.x, y-c.y):78                    l.append(c)79        return l80    def control_frompoint1(self, x, y):81        l = self.controls_frompoint(x, y)82        # l.sort(key=lambda c: c.zindex, reverse=True)83        l.sort(key=lambda c: c.zindex)84        while l:85            c = l[-1]86            rst = c.hit_test(x-c.x, y-c.y)87            if rst:88                return c89            else:90                del l[-1]91                continue92        else:93            return None94    def control_frompoint1_recursive(self, x, y):95        c = self96        while True:97            c1 = c.control_frompoint1(x, y)98            if not c1: return c99            x -= c1.x100            y -= c1.y101            c = c1102    def hit_test(self, x, y):103        return True104    @staticmethod105    def batch_draw(l):106        glPushMatrix()107        for c in l:108            glLoadIdentity()109            x, y = c.abs_coords()110            glTranslatef(x, y, 0)111            c.draw()112        glPopMatrix()113    def draw(self):114        # default behaviors115        self.draw_subcontrols()116    @staticmethod117    def do_draw(cl):118        cl.sort(key=lambda c: (c.zindex, c.batch_draw))119        cl = [c for c in cl if not c.manual_draw]120        if not cl: return121        f = cl[0].batch_draw122        commit = []123        for c in cl:124            if c.batch_draw == f:125                commit.append(c)126            else:127                f(commit)128                commit = [c]129                f = c.batch_draw130        if commit: f(commit)131    def draw_subcontrols(self):132        self.do_draw(self.control_list)133    def set_focus(self):134        if not self.can_focus: return135        o = self.parent136        while not isinstance(o, Overlay):137            o = o.parent138        if o:139            if o.current_focus != self:140                if o.current_focus:141                    o.current_focus.dispatch_event('on_lostfocus')142                self.dispatch_event('on_focus')143                o.current_focus = self144    def set_capture(self, *evts):145        o = self.overlay146        for e in evts:147            o._capture_events.setdefault(e, []).append(self)148    def release_capture(self, *evts):149        o = self.overlay150        if not o:151            return152        for e in evts:153            l = o._capture_events.get(e)154            if l:155                l.remove(self)156    def abs_coords(self):157        c, ax, ay = self, 0.0, 0.0158        while c and not isinstance(c, Overlay):159            ax += c.x160            ay += c.y161            c = c.parent162        return (ax, ay)163    def migrate_to(self, new_parent):164        if self in new_parent.control_list:165            return166        ax, ay = self.abs_coords()167        npax, npay = new_parent.abs_coords()168        self.delete()169        new_parent.add_control(self)170        self.x, self.y = ax-npax, ay-npay171    def on_message(self, *args):172        '''Do nothing'''173        pass174    xy = property(lambda self: (self.x, self.y))175class Overlay(Control):176    '''177    Represents current screen178    FIXME: Should be called Scene179    '''180    class DummyOverlay(object):181        def dispatch_event(*args):182            pass183    cur_overlay = DummyOverlay()184    def __init__(self, *args, **kwargs):185        Control.__init__(186            self, width=WINDOW_WIDTH, height=WINDOW_HEIGHT, parent=False187        )188        self.__dict__.update(kwargs)189        self.last_mouse_press = [  # WONTFIX: Button combinations not supported.190            None,191            (0.0, None, 0.0, 0.0),  # (time(), self._control_hit, x, y) LEFT192            (0.0, None, 0.0, 0.0),  # MIDDLE193            None,                   # Not used194            (0.0, None, 0.0, 0.0),  # RIGHT195        ]196        self.last_mouse_release = [197            None,198            (0.0, None, 0.0, 0.0),  # (time(), self._control_hit, x, y) LEFT199            (0.0, None, 0.0, 0.0),  # MIDDLE200            None,                   # Not used201            (0.0, None, 0.0, 0.0),  # RIGHT202        ]203        self.current_focus = None204        self._capture_events = {}205        self.key_state = defaultdict(bool)206    def draw(self):207        main_window.clear()208        self.draw_subcontrols()209    def switch(self):210        ori = Overlay.cur_overlay211        ori.dispatch_event('on_switchout')212        Overlay.cur_overlay = self213        main_window.set_handlers(self)214        self.dispatch_event('on_switch')215        # HACK216        import gc217        gc.collect()218        # -----219        return ori220    def on_resize(self, width, height):221        from options import options222        z = options.zoom223        glViewport(0, 0, int(width * z), int(height * z))224        glMatrixMode(GL_PROJECTION)225        glLoadIdentity()226        glOrtho(0, width, 0, height, -1000, 1000)227        glMatrixMode(GL_MODELVIEW)228        return pyglet.event.EVENT_HANDLED229    def _position_events(self, _type, x, y, *args):230        cap_list = self._capture_events.setdefault(_type, [])[:]231        from options import options232        z = options.zoom233        x, y = x / z, y / z234        def dispatch(this, lx, ly):235            # Top most control get event236            c = this.control_frompoint1(lx, ly)237            lc = this._control_hit238            if c != lc:239                while lc:240                    lc.dispatch_event('on_mouse_leave', lx - lc.x, ly - lc.y)241                    lc._control_hit, lc = None, lc._control_hit242                if c:243                    c.dispatch_event('on_mouse_enter', lx - c.x, ly - c.y)244            this._control_hit = c245            if not c:246                # Now 'this' has no subcontrols hit, so 'this' got this event247                # TODO: if 'this' don't handle it, its parent should handle.248                if this is not self:249                    if _type == 'on_mouse_press':250                        this.set_focus()251            else:252                if dispatch(c, lx - c.x, ly - c.y):  # TODO: not recursive253                    return True254                if c not in cap_list:  # do not redispatch the same event255                    return c.dispatch_event(_type, lx - c.x, ly - c.y, *args)256        # capturing events257        for con in cap_list:258            ax, ay = con.abs_coords()259            if con.dispatch_event(_type, x-ax, y-ay, *args):260                return True261        return dispatch(self, x, y)262    def on_mouse_press(self, x, y, button, modifier):263        self.last_mouse_press[button] = (time(), self._control_hit, x, y)264        self._position_events('on_mouse_press', x, y, button, modifier)265    def on_mouse_release(self, x, y, button, modifier):266        lp = self.last_mouse_press[button]267        lr = self.last_mouse_release[button]268        cr = (time(), self._control_hit, x, y)269        self.last_mouse_release[button] = cr270        self._position_events('on_mouse_release', x, y, button, modifier)271        # single click272        if cr[1] == lp[1]:273            self._position_events('on_mouse_click', x, y, button, modifier)274        # double click275        if cr[0]-lr[0] < 0.2:  # time limit276            if abs(cr[2] - lr[2]) + abs(cr[3] - lr[3]) < 4:  # shift limit277                if cr[1] == lr[1]:  # Control limit278                    self._position_events('on_mouse_dblclick', x, y, button, modifier)279    on_mouse_motion = lambda self, *args: self._position_events('on_mouse_motion', *args)280    on_mouse_drag = lambda self, *args: self._position_events('on_mouse_drag', *args)281    on_mouse_scroll = lambda self, *args: self._position_events('on_mouse_scroll', *args)282    def _text_events(self, _type, *args):283        cap_list = self._capture_events.setdefault(_type, [])284        if cap_list:285            con = cap_list[-1]286            con.dispatch_event(_type, *args)287        if self.current_focus:288            self.current_focus.dispatch_event(_type, *args)289    def on_key_press(self, symbol, modifiers):290        self.key_state[symbol] = True291        return self._text_events('on_key_press', symbol, modifiers)292    def on_key_release(self, symbol, modifiers):293        self.key_state[symbol] = False294        return self._text_events('on_key_release', symbol, modifiers)295    on_text = lambda self, *args: self._text_events('on_text', *args)296    on_text_motion = lambda self, *args: self._text_events('on_text_motion', *args)297    on_text_motion_select = lambda self, *args: self._text_events('on_text_motion_select', *args)298    def dispatch_message(self, args):299        l = [self]300        while l:301            c = l.pop(0)302            c.dispatch_event('on_message', *args)303            l.extend(c.control_list)304    def on_message(self, _type, *args):305        if _type == 'app_exit':306            pyglet.app.exit()307Control.register_event_type('on_key_press')308Control.register_event_type('on_key_release')309Control.register_event_type('on_text')310Control.register_event_type('on_text_motion')311Control.register_event_type('on_text_motion_select')312Control.register_event_type('on_mouse_motion')313Control.register_event_type('on_mouse_press')314Control.register_event_type('on_mouse_drag')315Control.register_event_type('on_mouse_release')316Control.register_event_type('on_mouse_scroll')317Control.register_event_type('on_mouse_enter')318Control.register_event_type('on_mouse_leave')319Control.register_event_type('on_mouse_click')320Control.register_event_type('on_mouse_dblclick')321Control.register_event_type('on_focus')322Control.register_event_type('on_lostfocus')323Control.register_event_type('on_message')324Control.register_event_type('on_resize')325Overlay.register_event_type('on_switch')326Overlay.register_event_type('on_switchout')327def init_gui():328    global main_window, sched_queue, current_time, fps_limit329    config = pyglet.gl.Config(330        double_buffer=True,331        buffer_size=32,332        aux_buffers=0,333        sample_buffers=0,334        samples=0,335        red_size=8,336        green_size=8,337        blue_size=8,338        alpha_size=8,339        depth_size=0,340        stencil_size=0,341        accum_red_size=0,342        accum_green_size=0,343        accum_blue_size=0,344        accum_alpha_size=0,345    )346    from options import options347    z = options.zoom348    main_window = pyglet.window.Window(349        width=int(WINDOW_WIDTH * z), height=int(WINDOW_HEIGHT * z), caption=u'ä¸æ¹ç¬¦æç¥',350        config=config, visible=False351    )352    sched_queue = []353    from pyglet.gl import gl_info354    vendor = gl_info.get_vendor().lower()355    if 'amd' in vendor or 'ati' in vendor:356        pyglet.options['graphics_vbo'] = False  # AMD: Do you have QA team for your OpenGL driver ????357        from pyglet.graphics import vertexbuffer358        assert not vertexbuffer._enable_vbo359    # custom font renderer360    from .font import AncientPixFont361    pyglet.font._font_class = AncientPixFont362    # main window setup {{363    glClearColor(1, 1, 1, 1)364    glEnable(GL_BLEND)365    glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA)366    # glEnable(GL_SCISSOR_TEST)367    glPolygonMode(GL_FRONT, GL_FILL)368    glPolygonMode(GL_BACK, GL_LINE)369    def_overlay = Overlay()370    def_overlay.name = 'Overlay'371    def_overlay.switch()372    # }} main window setup373    fps = pyglet.clock.ClockDisplay()374    fps_limit = 60375    delay = 1. / fps_limit376    current_time = time()377    @main_window.event378    def on_draw():379        global current_time380        current_time = time()381        Overlay.cur_overlay.draw()382        fps.draw()383    @main_window.event384    def on_close():385        # HACK: suppress exceptions,386        # dont want to explain....387        pyglet.clock.tick = lambda a: 0.0388        pyglet.app.exit()389    @hook(main_window)390    def on_key_press(ori, symbol, modifiers):391        if symbol == pyglet.window.key.ESCAPE:392            return pyglet.event.EVENT_HANDLED393        return ori(symbol, modifiers)394    def _dispatch_msg(dt):395        global sched_queue396        import gevent397        # give logics a chance to run398        gevent.sleep(0.001)399        if not sched_queue: return400        for func in sched_queue:401            func()402        sched_queue = []403    pyglet.clock.schedule_interval(_dispatch_msg, delay)404def ui_schedule(func, *args, **kwargs):405    global sched_queue406    sched_queue.append(partial(func, *args, **kwargs))407def process_msg(args):408    Overlay.cur_overlay.dispatch_message(args)409def ui_message(*args):410    '''411    Send message to UI412    '''...

broker_event_consumer.py

Source:broker_event_consumer.py

...37        self._run_from_broker()38    def _run_from_broker(self):39        """Load the events from celery"""40        try:41            self._capture_events()42        finally:43            self._on_cleanup()44    def _capture_events(self):45        try_interval = 146        while not self._is_root_complete():47            try:48                try_interval *= 249                with self.celery_app.connection() as conn:50                    conn.ensure_connection(max_retries=1, interval_start=0)51                    self.celery_event_receiver = EventReceiver(52                        conn,53                        handlers={"*": self._on_event},54                        app=self.celery_app)55                    try_interval = 156                    self._ready()57                    self.celery_event_receiver.capture(58                        limit=None, timeout=None, wakeup=True)...

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