discover-desktop/discover_overlay/draggable_window.py
2020-09-30 13:51:51 +01:00

132 lines
4.2 KiB
Python

import gi
gi.require_version("Gtk", "3.0")
gi.require_version('PangoCairo', '1.0')
gi.require_version('GdkPixbuf', '2.0')
import cairo
from gi.repository.GdkPixbuf import Pixbuf
from gi.repository import Gtk, GLib, Gio, GdkPixbuf, Gdk, Pango, PangoCairo
import logging
class DraggableWindow(Gtk.Window):
def __init__(self, x=0, y=0, w=300, h=300, message="Message"):
Gtk.Window.__init__(self, type=Gtk.WindowType.POPUP)
if w < 100:
w = 100
if h < 100:
h = 100
self.x = x
self.y = y
self.w = w
self.h = h
self.message = message
self.set_size_request(50, 50)
self.connect('draw', self.draw)
self.connect('motion-notify-event', self.drag)
self.connect('button-press-event', self.button_press)
self.connect('button-release-event', self.button_release)
self.compositing = False
# Set RGBA
screen = self.get_screen()
visual = screen.get_rgba_visual()
if visual:
# Set the visual even if we can't use it right now
self.set_visual(visual)
if screen.is_composited():
self.compositing = True
self.set_app_paintable(True)
self.monitor = 0
self.drag_type = None
self.drag_x = 0
self.drag_y = 0
self.force_location()
self.show_all()
def force_location(self):
self.set_decorated(False)
self.set_keep_above(True)
display = Gdk.Display.get_default()
if "get_monitor" in dir(display):
monitor = display.get_monitor(self.monitor)
geometry = monitor.get_geometry()
scale_factor = monitor.get_scale_factor()
w = scale_factor * geometry.width
h = scale_factor * geometry.height
x = geometry.x
y = geometry.y
else:
screen = display.get_default_screen()
w = screen.width()
h = screen.height()
x = 0
y = 0
#self.resize(400, h)
self.move(self.x, self.y)
self.resize(self.w, self.h)
def drag(self, w, event):
if event.state & Gdk.ModifierType.BUTTON1_MASK:
if self.drag_type == 1:
# Center is move
self.x = event.x_root - self.drag_x
self.y = event.y_root - self.drag_y
self.force_location()
elif self.drag_type == 2:
# Right edge
self.w += event.x - self.drag_x
self.drag_x = event.x
self.force_location()
elif self.drag_type == 3:
# Bottom edge
self.h += event.y - self.drag_y
self.drag_y = event.y
self.force_location()
else:
# Bottom Right
self.w += event.x - self.drag_x
self.h += event.y - self.drag_y
self.drag_x = event.x
self.drag_y = event.y
self.force_location()
def button_press(self, w, event):
(w, h) = self.get_size()
if not self.drag_type:
self.drag_type = 1
# Where in the window did we press?
if event.y > h - 32:
self.drag_type += 2
if event.x > w - 32:
self.drag_type += 1
self.drag_x = event.x
self.drag_y = event.y
def button_release(self, w, event):
self.drag_type = None
def draw(self, widget, context):
context.set_source_rgba(1.0, 1.0, 0.0, 0.7)
# Don't layer drawing over each other, always replace
context.set_operator(cairo.OPERATOR_SOURCE)
context.paint()
context.set_operator(cairo.OPERATOR_OVER)
# Get size of window
(sw, sh) = self.get_size()
# Draw text
context.set_source_rgba(0.0, 0.0, 0.0, 1.0)
xb, yb, w, h, dx, dy = context.text_extents(self.message)
context.move_to(sw / 2 - w / 2, sh / 2 - h / 2)
context.show_text(self.message)
# Draw resizing edges
context.set_source_rgba(0.0, 0.0, 1.0, 0.5)
context.rectangle(sw - 32, 0, 32, sh)
context.fill()
context.rectangle(0, sh - 32, sw, 32)
context.fill()