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Gdk.py
# -*- Mode: Python; py-indent-offset: 4 -*- # vim: tabstop=4 shiftwidth=4 expandtab # # Copyright (C) 2009 Johan Dahlin <johan@gnome.org> # 2010 Simon van der Linden <svdlinden@src.gnome.org> # # This library is free software; you can redistribute it and/or # modify it under the terms of the GNU Lesser General Public # License as published by the Free Software Foundation; either # version 2.1 of the License, or (at your option) any later version. # # This library is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU # Lesser General Public License for more details. # # You should have received a copy of the GNU Lesser General Public # License along with this library; if not, write to the Free Software # Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 # USA import sys import warnings from ..overrides import override, strip_boolean_result from ..module import get_introspection_module from gi import PyGIDeprecationWarning, require_version Gdk = get_introspection_module('Gdk') GDK2 = Gdk._version == '2.0' GDK3 = Gdk._version == '3.0' GDK4 = Gdk._version == '4.0' __all__ = [] # https://bugzilla.gnome.org/show_bug.cgi?id=673396 try: require_version("GdkX11", Gdk._version) from gi.repository import GdkX11 GdkX11 # pyflakes except (ValueError, ImportError): pass if GDK2 or GDK3: # Gdk.Color was deprecated since 3.14 and dropped in Gtk-4.0 class Color(Gdk.Color): MAX_VALUE = 65535 def __init__(self, red, green, blue): Gdk.Color.__init__(self) self.red = red self.green = green self.blue = blue def __eq__(self, other): if not isinstance(other, Gdk.Color): return False return self.equal(other) # This is required (even when __eq__ is defined) in order # for != operator to work as expected def __ne__(self, other): return not self == other def __repr__(self): return 'Gdk.Color(red=%d, green=%d, blue=%d)' % (self.red, self.green, self.blue) red_float = property(fget=lambda self: self.red / float(self.MAX_VALUE), fset=lambda self, v: setattr(self, 'red', int(v * self.MAX_VALUE))) green_float = property(fget=lambda self: self.green / float(self.MAX_VALUE), fset=lambda self, v: setattr(self, 'green', int(v * self.MAX_VALUE))) blue_float = property(fget=lambda self: self.blue / float(self.MAX_VALUE), fset=lambda self, v: setattr(self, 'blue', int(v * self.MAX_VALUE))) def to_floats(self): """Return (red_float, green_float, blue_float) triple.""" return (self.red_float, self.green_float, self.blue_float) @staticmethod def from_floats(red, green, blue): """Return a new Color object from red/green/blue values from 0.0 to 1.0.""" return Color(int(red * Color.MAX_VALUE), int(green * Color.MAX_VALUE), int(blue * Color.MAX_VALUE)) Color = override(Color) __all__.append('Color') if GDK3: # Introduced since Gtk-3.0 class RGBA(Gdk.RGBA): def __init__(self, red=1.0, green=1.0, blue=1.0, alpha=1.0): Gdk.RGBA.__init__(self) self.red = red self.green = green self.blue = blue self.alpha = alpha def __eq__(self, other): if not isinstance(other, Gdk.RGBA): return False return self.equal(other) # This is required (even when __eq__ is defined) in order # for != operator to work as expected def __ne__(self, other): return not self == other def __repr__(self): return 'Gdk.RGBA(red=%f, green=%f, blue=%f, alpha=%f)' % (self.red, self.green, self.blue, self.alpha) def __iter__(self): """Iterator which allows easy conversion to tuple and list types.""" yield self.red yield self.green yield self.blue yield self.alpha def to_color(self): """Converts this RGBA into a Color instance which excludes alpha.""" return Color(int(self.red * Color.MAX_VALUE), int(self.green * Color.MAX_VALUE), int(self.blue * Color.MAX_VALUE)) @classmethod def from_color(cls, color): """Returns a new RGBA instance given a Color instance.""" return cls(color.red_float, color.green_float, color.blue_float) RGBA = override(RGBA) __all__.append('RGBA') if GDK2: class Rectangle(Gdk.Rectangle): def __init__(self, x, y, width, height): Gdk.Rectangle.__init__(self) self.x = x self.y = y self.width = width self.height = height def __repr__(self): return 'Gdk.Rectangle(x=%d, y=%d, width=%d, height=%d)' % (self.x, self.y, self.height, self.width) Rectangle = override(Rectangle) __all__.append('Rectangle') elif GDK3: # Newer GTK/gobject-introspection (3.17.x) include GdkRectangle in the # typelib. See https://bugzilla.gnome.org/show_bug.cgi?id=748832 and # https://bugzilla.gnome.org/show_bug.cgi?id=748833 if not hasattr(Gdk, 'Rectangle'): from gi.repository import cairo as _cairo Rectangle = _cairo.RectangleInt __all__.append('Rectangle') else: # https://bugzilla.gnome.org/show_bug.cgi?id=756364 # These methods used to be functions, keep aliases for backwards compat rectangle_intersect = Gdk.Rectangle.intersect rectangle_union = Gdk.Rectangle.union __all__.append('rectangle_intersect') __all__.append('rectangle_union') if GDK2: class Drawable(Gdk.Drawable): def cairo_create(self): return Gdk.cairo_create(self) Drawable = override(Drawable) __all__.append('Drawable') elif GDK3: class Window(Gdk.Window): def __new__(cls, parent, attributes, attributes_mask): # Gdk.Window had to be made abstract, # this override allows using the standard constructor return Gdk.Window.new(parent, attributes, attributes_mask) def __init__(self, parent, attributes, attributes_mask): pass def cairo_create(self): return Gdk.cairo_create(self) Window = override(Window) __all__.append('Window') if GDK2 or GDK3: Gdk.EventType._2BUTTON_PRESS = getattr(Gdk.EventType, "2BUTTON_PRESS") Gdk.EventType._3BUTTON_PRESS = getattr(Gdk.EventType, "3BUTTON_PRESS") class Event(Gdk.Event): _UNION_MEMBERS = { Gdk.EventType.DELETE: 'any', Gdk.EventType.DESTROY: 'any', Gdk.EventType.MOTION_NOTIFY: 'motion', Gdk.EventType.BUTTON_PRESS: 'button', Gdk.EventType.BUTTON_RELEASE: 'button', Gdk.EventType.KEY_PRESS: 'key', Gdk.EventType.KEY_RELEASE: 'key', Gdk.EventType.ENTER_NOTIFY: 'crossing', Gdk.EventType.LEAVE_NOTIFY: 'crossing', Gdk.EventType.FOCUS_CHANGE: 'focus_change', Gdk.EventType.CONFIGURE: 'configure', Gdk.EventType.PROXIMITY_IN: 'proximity', Gdk.EventType.PROXIMITY_OUT: 'proximity', Gdk.EventType.DRAG_ENTER: 'dnd', Gdk.EventType.DRAG_LEAVE: 'dnd', Gdk.EventType.DRAG_MOTION: 'dnd', Gdk.EventType.DROP_START: 'dnd', Gdk.EventType._2BUTTON_PRESS: 'button', Gdk.EventType._3BUTTON_PRESS: 'button', Gdk.EventType.PROPERTY_NOTIFY: 'property', Gdk.EventType.SELECTION_CLEAR: 'selection', Gdk.EventType.SELECTION_REQUEST: 'selection', Gdk.EventType.SELECTION_NOTIFY: 'selection', Gdk.EventType.DRAG_STATUS: 'dnd', Gdk.EventType.DROP_FINISHED: 'dnd', Gdk.EventType.CLIENT_EVENT: 'client', Gdk.EventType.VISIBILITY_NOTIFY: 'visibility', Gdk.EventType.SCROLL: 'scroll', Gdk.EventType.EXPOSE: 'expose', Gdk.EventType.MAP: 'any', Gdk.EventType.UNMAP: 'any', } if GDK2: _UNION_MEMBERS[Gdk.EventType.NO_EXPOSE] = 'no_expose' if hasattr(Gdk.EventType, 'TOUCH_BEGIN'): _UNION_MEMBERS.update( { Gdk.EventType.TOUCH_BEGIN: 'touch', Gdk.EventType.TOUCH_UPDATE: 'touch', Gdk.EventType.TOUCH_END: 'touch', Gdk.EventType.TOUCH_CANCEL: 'touch', }) def __getattr__(self, name): real_event = getattr(self, '_UNION_MEMBERS').get(self.type) if real_event: return getattr(getattr(self, real_event), name) else: raise AttributeError("'%s' object has no attribute '%s'" % (self.__class__.__name__, name)) def __setattr__(self, name, value): real_event = getattr(self, '_UNION_MEMBERS').get(self.type) if real_event: setattr(getattr(self, real_event), name, value) else: Gdk.Event.__setattr__(self, name, value) def __repr__(self): base_repr = Gdk.Event.__repr__(self).strip("><") return "<%s type=%r>" % (base_repr, self.type) Event = override(Event) __all__.append('Event') # manually bind GdkEvent members to GdkEvent modname = globals()['__name__'] module = sys.modules[modname] # right now we can't get the type_info from the # field info so manually list the class names event_member_classes = ['EventAny', 'EventExpose', 'EventMotion', 'EventButton', 'EventScroll', 'EventKey', 'EventCrossing', 'EventFocus', 'EventConfigure', 'EventProximity', 'EventDND', 'EventSetting', 'EventGrabBroken', 'EventVisibility', 'EventProperty', 'EventSelection', 'EventOwnerChange', 'EventWindowState', 'EventVisibility'] if GDK2: event_member_classes.append('EventNoExpose') if hasattr(Gdk, 'EventTouch'): event_member_classes.append('EventTouch') # whitelist all methods that have a success return we want to mask gsuccess_mask_funcs = ['get_state', 'get_axis', 'get_coords', 'get_root_coords'] for event_class in event_member_classes: override_class = type(event_class, (getattr(Gdk, event_class),), {}) # add the event methods for method_info in Gdk.Event.__info__.get_methods(): name = method_info.get_name() event_method = getattr(Gdk.Event, name) # use the _gsuccess_mask decorator if this method is whitelisted if name in gsuccess_mask_funcs: event_method = strip_boolean_result(event_method) setattr(override_class, name, event_method) setattr(module, event_class, override_class) __all__.append(event_class) # end GdkEvent overrides class DragContext(Gdk.DragContext): def finish(self, success, del_, time): Gtk = get_introspection_module('Gtk') Gtk.drag_finish(self, success, del_, time) DragContext = override(DragContext) __all__.append('DragContext') class Cursor(Gdk.Cursor): def __new__(cls, *args, **kwds): arg_len = len(args) kwd_len = len(kwds) total_len = arg_len + kwd_len if total_len == 1: # Since g_object_newv (super.__new__) does not seem valid for # direct use with GdkCursor, we must assume usage of at least # one of the C constructors to be valid. return cls.new(*args, **kwds) elif total_len == 2: warnings.warn('Calling "Gdk.Cursor(display, cursor_type)" has been deprecated. ' 'Please use Gdk.Cursor.new_for_display(display, cursor_type). ' 'See: https://wiki.gnome.org/PyGObject/InitializerDeprecations', PyGIDeprecationWarning) return cls.new_for_display(*args, **kwds) elif total_len == 4: warnings.warn('Calling "Gdk.Cursor(display, pixbuf, x, y)" has been deprecated. ' 'Please use Gdk.Cursor.new_from_pixbuf(display, pixbuf, x, y). ' 'See: https://wiki.gnome.org/PyGObject/InitializerDeprecations', PyGIDeprecationWarning) return cls.new_from_pixbuf(*args, **kwds) elif total_len == 6: if not GDK2: # pixmaps don't exist in Gdk 3.0 raise ValueError("Wrong number of parameters") warnings.warn('Calling "Gdk.Cursor(source, mask, fg, bg, x, y)" has been deprecated. ' 'Please use Gdk.Cursor.new_from_pixmap(source, mask, fg, bg, x, y). ' 'See: https://wiki.gnome.org/PyGObject/InitializerDeprecations', PyGIDeprecationWarning) return cls.new_from_pixmap(*args, **kwds) else: raise ValueError("Wrong number of parameters") Cursor = override(Cursor) __all__.append('Cursor') # Gdk.Color was deprecated since 3.14 and dropped in Gtk-4.0 color_parse = strip_boolean_result(Gdk.color_parse) __all__.append('color_parse') # Note, we cannot override the entire class as Gdk.Atom has no gtype, so just # hack some individual methods def _gdk_atom_str(atom): n = atom.name() if n: return n # fall back to atom index return 'Gdk.Atom<%i>' % hash(atom) def _gdk_atom_repr(atom): n = atom.name() if n: return 'Gdk.Atom.intern("%s", False)' % n # fall back to atom index return '<Gdk.Atom(%i)>' % hash(atom) Gdk.Atom.__str__ = _gdk_atom_str Gdk.Atom.__repr__ = _gdk_atom_repr if GDK4: from gi.repository import Gio class FileList(Gdk.FileList): if hasattr(Gdk.FileList, "new_from_list"): def __new__(cls, files): files_list = [] if isinstance(files, (tuple, list)): for f in files: if isinstance(f, Gio.File): files_list.append(f) else: raise TypeError('Constructor requires a list or tuple of Gio.File instances') else: raise TypeError('Constructor requires a list or tuple of Gio.File instances') return Gdk.FileList.new_from_list(files) def __iter__(self): return iter(self.get_files()) def __len__(self): return len(self.get_files()) def __getitem__(self, index): return self.get_files()[index] FileList = override(FileList) __all__.append('FileList') # constants if GDK3: SELECTION_PRIMARY = Gdk.atom_intern('PRIMARY', True) __all__.append('SELECTION_PRIMARY') SELECTION_SECONDARY = Gdk.atom_intern('SECONDARY', True) __all__.append('SELECTION_SECONDARY') SELECTION_CLIPBOARD = Gdk.atom_intern('CLIPBOARD', True) __all__.append('SELECTION_CLIPBOARD') TARGET_BITMAP = Gdk.atom_intern('BITMAP', True) __all__.append('TARGET_BITMAP') TARGET_COLORMAP = Gdk.atom_intern('COLORMAP', True) __all__.append('TARGET_COLORMAP') TARGET_DRAWABLE = Gdk.atom_intern('DRAWABLE', True) __all__.append('TARGET_DRAWABLE') TARGET_PIXMAP = Gdk.atom_intern('PIXMAP', True) __all__.append('TARGET_PIXMAP') TARGET_STRING = Gdk.atom_intern('STRING', True) __all__.append('TARGET_STRING') SELECTION_TYPE_ATOM = Gdk.atom_intern('ATOM', True) __all__.append('SELECTION_TYPE_ATOM') SELECTION_TYPE_BITMAP = Gdk.atom_intern('BITMAP', True) __all__.append('SELECTION_TYPE_BITMAP') SELECTION_TYPE_COLORMAP = Gdk.atom_intern('COLORMAP', True) __all__.append('SELECTION_TYPE_COLORMAP') SELECTION_TYPE_DRAWABLE = Gdk.atom_intern('DRAWABLE', True) __all__.append('SELECTION_TYPE_DRAWABLE') SELECTION_TYPE_INTEGER = Gdk.atom_intern('INTEGER', True) __all__.append('SELECTION_TYPE_INTEGER') SELECTION_TYPE_PIXMAP = Gdk.atom_intern('PIXMAP', True) __all__.append('SELECTION_TYPE_PIXMAP') SELECTION_TYPE_WINDOW = Gdk.atom_intern('WINDOW', True) __all__.append('SELECTION_TYPE_WINDOW') SELECTION_TYPE_STRING = Gdk.atom_intern('STRING', True) __all__.append('SELECTION_TYPE_STRING') if GDK2 or GDK3: import sys initialized, argv = Gdk.init_check(sys.argv)
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