147 lines
5.3 KiB
Python
147 lines
5.3 KiB
Python
# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <https://www.gnu.org/licenses/>.
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"""An X11 window which can be moved and resized"""
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import gi
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import cairo
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import logging
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gi.require_version("Gtk", "3.0")
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# pylint: disable=wrong-import-position
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from gi.repository import Gtk, Gdk # nopep8
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log = logging.getLogger(__name__)
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class DraggableWindow(Gtk.Window):
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"""An X11 window which can be moved and resized"""
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def __init__(self, pos_x=0, pos_y=0, width=300, height=300, message="Message", settings=None):
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Gtk.Window.__init__(self, type=Gtk.WindowType.POPUP)
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self.pos_x = pos_x
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self.pos_y = pos_y
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self.width = max(100, width)
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self.height = max(100, height)
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self.settings = settings
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self.message = message
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self.set_size_request(50, 50)
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self.connect('draw', self.dodraw)
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self.connect('motion-notify-event', self.drag)
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self.connect('button-press-event', self.button_press)
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self.connect('button-release-event', self.button_release)
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self.compositing = False
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# Set RGBA
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screen = self.get_screen()
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visual = screen.get_rgba_visual()
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if visual:
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# Set the visual even if we can't use it right now
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self.set_visual(visual)
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if screen.is_composited():
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self.compositing = True
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self.set_app_paintable(True)
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self.monitor = 0
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self.drag_type = None
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self.drag_x = 0
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self.drag_y = 0
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self.force_location()
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self.show_all()
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def force_location(self):
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"""
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Move the window to previously given co-ords.
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Also double check sanity on layer & decorations
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"""
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self.set_decorated(False)
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self.set_keep_above(True)
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self.move(self.pos_x, self.pos_y)
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self.resize(self.width, self.height)
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def drag(self, _w, event):
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"""Called by GTK while mouse is moving over window. Used to resize and move"""
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if event.state & Gdk.ModifierType.BUTTON1_MASK:
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if self.drag_type == 1:
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# Center is move
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self.pos_x = event.x_root - self.drag_x
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self.pos_y = event.y_root - self.drag_y
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self.force_location()
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elif self.drag_type == 2:
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# Right edge
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self.width += event.x - self.drag_x
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self.drag_x = event.x
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self.force_location()
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elif self.drag_type == 3:
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# Bottom edge
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self.height += event.y - self.drag_y
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self.drag_y = event.y
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self.force_location()
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else:
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# Bottom Right
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self.width += event.x - self.drag_x
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self.height += event.y - self.drag_y
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self.drag_x = event.x
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self.drag_y = event.y
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self.force_location()
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def button_press(self, _widget, event):
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"""Called when a mouse button is pressed on this window"""
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(width, height) = self.get_size()
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if not self.drag_type:
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self.drag_type = 1
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# Where in the window did we press?
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if event.y > height - 32:
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self.drag_type += 2
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if event.x > width - 32:
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self.drag_type += 1
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self.drag_x = event.x
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self.drag_y = event.y
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def button_release(self, _w, _event):
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"""Called when a mouse button is released"""
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self.drag_type = None
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def dodraw(self, _widget, context):
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"""Draw our window."""
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context.set_source_rgba(1.0, 1.0, 0.0, 0.7)
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# Don't layer drawing over each other, always replace
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context.set_operator(cairo.OPERATOR_SOURCE)
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context.paint()
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context.set_operator(cairo.OPERATOR_OVER)
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# Get size of window
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(window_width, window_height) = self.get_size()
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# Draw text
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context.set_source_rgba(0.0, 0.0, 0.0, 1.0)
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_xb, _yb, text_width, text_height, _dx, _dy = context.text_extents(
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self.message)
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context.move_to(window_width / 2 - text_width / 2,
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window_height / 2 - text_height / 2)
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context.show_text(self.message)
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# Draw resizing edges
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context.set_source_rgba(0.0, 0.0, 1.0, 0.5)
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context.rectangle(window_width - 32, 0, 32, window_height)
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context.fill()
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context.rectangle(0, window_height - 32, window_width, 32)
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context.fill()
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def get_coords(self):
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"""Return window position and size"""
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scale = self.get_scale_factor()
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(pos_x, pos_y) = self.get_position()
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(width, height) = self.get_size()
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pos_x = pos_x / scale
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pos_y = pos_y / scale
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return (pos_x, pos_y, width, height)
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