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cameractrlsgtk.py
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cameractrlsgtk.py
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#!/usr/bin/env python3
import os, sys, logging, subprocess
import gi
from cameractrls import CameraCtrls, PTZHWControllers, find_by_text_id, get_devices, v4ldirs, find_idx
from cameractrls import version, ghurl
gi.require_version('Gtk', '3.0')
from gi.repository import Gtk, Gio, GLib, Pango, Gdk, GObject
class GStr(GObject.GObject):
def __init__(self, text):
GObject.GObject.__init__(self)
self.text = text
def __str__(self):
return self.text
class FormatScale(Gtk.Scale):
def __init__(self, format_value = None, *args, **kwargs):
super().__init__(*args, **kwargs)
self.format_value = format_value
def do_format_value(self, v):
if self.format_value:
return self.format_value(self, v)
return f'{v:.0f}'
class CameraCtrlsWindow(Gtk.ApplicationWindow):
def __init__(self, *args, **kwargs):
super().__init__(*args, type_hint=Gdk.WindowTypeHint.DIALOG, **kwargs)
self.devices = []
self.fd = 0
self.device = None
self.camera = None
self.listener = None
self.ptz_controllers = None
self.grid = None
self.frame = None
self.device_cb = None
self.zoom_absolute_sc = None
self.pan_speed_sc = None
self.tilt_speed_sc = None
self.pan_absolute_sc = None
self.tilt_absolute_sc = None
self.init_window()
self.refresh_devices()
def init_window(self):
css_provider = Gtk.CssProvider()
css_provider.load_from_data(b'''
.white-balance-temperature trough {
background-image: linear-gradient(to right,
#89F3FF, #AFF7FF, #DDFCFF, #FFF2AA, #FFDD27, #FFC500, #FFB000, #FF8D00, #FF7A00
);
}
.white-balance-temperature trough:disabled {
background-blend-mode: color;
}
.dark-to-light trough {
background-image: linear-gradient(to right,
#888888, #dddddd
);
}
.dark-to-light trough:disabled {
background-blend-mode: color;
}
''')
Gtk.StyleContext.add_provider_for_screen(
Gdk.Screen.get_default(), css_provider,
Gtk.STYLE_PROVIDER_PRIORITY_APPLICATION
)
try:
self.desktop_portal = Gio.DBusProxy.new_for_bus_sync(
Gio.BusType.SESSION, Gio.DBusProxyFlags.NONE, None,
'org.freedesktop.portal.Desktop', '/org/freedesktop/portal/desktop',
'org.freedesktop.portal.Settings', None)
prefer_dark = self.desktop_portal.Read('(ss)', 'org.freedesktop.appearance', 'color-scheme') == 1
self.get_settings().set_property('gtk-application-prefer-dark-theme', prefer_dark)
self.desktop_portal.connect('g-signal', lambda p, sender, signal, params:
signal == 'SettingChanged' and
params[0] == 'org.freedesktop.appearance' and
params[1] == 'color-scheme' and
self.get_settings().set_property('gtk-application-prefer-dark-theme', params[2] == 1)
)
except Exception as e:
logging.warning(f'desktop_portal failed: {e}')
about_button = Gtk.Button(
action_name='app.about',
image=Gtk.Image(icon_name='open-menu-symbolic', icon_size=Gtk.IconSize.MENU),
relief=Gtk.ReliefStyle.NONE,
tooltip_text='About',
)
self.open_cam_button = Gtk.Button(
action_name='app.open_camera_window',
action_target=GLib.Variant('s', ''),
image=Gtk.Image(icon_name='camera-video-symbolic', icon_size=Gtk.IconSize.MENU),
relief=Gtk.ReliefStyle.NONE,
tooltip_text='Show preview window',
)
self.ptz_model = Gio.ListStore()
self.ptz_lb = Gtk.ListBox(selection_mode=Gtk.SelectionMode.NONE, margin=5)
self.ptz_lb.bind_model(self.ptz_model, lambda i: Gtk.ToggleButton(label=i.text, margin=5))
self.ptz_lb.show_all()
self.ptz_sw = Gtk.MenuButton(
popover=Gtk.Popover(position=Gtk.PositionType.BOTTOM, child=self.ptz_lb),
image=Gtk.Image(icon_name='input-gaming-symbolic', icon_size=Gtk.IconSize.MENU),
relief=Gtk.ReliefStyle.NONE,
tooltip_text='PTZ hardware controls',
)
refresh_button = Gtk.Button(
image=Gtk.Image(icon_name='view-refresh-symbolic', icon_size=Gtk.IconSize.MENU),
relief=Gtk.ReliefStyle.NONE,
tooltip_text='Refresh',
)
refresh_button.connect('clicked', lambda e: self.refresh_devices())
headerbar = Gtk.HeaderBar(title='Cameractrls', show_close_button=True)
headerbar.pack_start(refresh_button)
headerbar.pack_end(about_button)
headerbar.pack_end(self.open_cam_button)
headerbar.pack_end(self.ptz_sw)
self.grid = Gtk.Grid()
self.zero_box = Gtk.Box(orientation=Gtk.Orientation.VERTICAL, hexpand=True, halign=Gtk.Align.CENTER)
self.zero_box.pack_start(Gtk.Image(icon_name='camera-disabled-symbolic', icon_size=Gtk.IconSize.DIALOG, pixel_size=96,
margin_top=30, margin_bottom=10, margin_start=80, margin_end=80), True, True, 0)
self.zero_box.pack_start(Gtk.Label(label='<span size="17000" color="gray">0 camera found</span>', use_markup=True,
margin_top=10, margin_bottom=20), True, True, 0)
if 'SNAP' in os.environ:
self.zero_box.pack_start(Gtk.Label(label='Please permit access with', max_width_chars=30, wrap=True, margin_top=10), True, True, 0)
self.zero_box.pack_start(Gtk.Label(label='snap connect cameractrls:camera', selectable=True, margin_bottom=10), True, True, 0)
self.zero_box.show_all()
self.zero_box.set_no_show_all(True)
self.model = Gio.ListStore()
self.device_lb = Gtk.ListBox(activate_on_single_click=True, selection_mode=Gtk.SelectionMode.SINGLE, margin=5)
self.device_lb.bind_model(self.model, lambda i: Gtk.Label(label=i.text, margin=10, xalign=0))
self.device_lb.show_all()
# row-selected fires at every popover open so only row-activated used
self.device_lb.connect('row-activated', lambda lb, r: [
self.gui_open_device(r.get_index()),
self.device_sw.get_popover().popdown(),
])
self.device_sw = Gtk.MenuButton(
popover=Gtk.Popover(position=Gtk.PositionType.BOTTOM, child=self.device_lb),
image=Gtk.Image(icon_name='view-more-symbolic', icon_size=Gtk.IconSize.MENU),
relief=Gtk.ReliefStyle.NONE,
tooltip_text='Select other camera'
)
headerbar.pack_start(self.device_sw)
headerbar.show_all()
self.set_titlebar(headerbar)
self.grid.attach(self.zero_box, 0, 0, 1, 1)
self.grid.show()
self._notify_timeout = None
overlay = Gtk.Overlay()
overlay.add(self.grid)
# Notification overlay widget
self._revealer = Gtk.Revealer(valign=Gtk.Align.END, halign=Gtk.Align.CENTER)
self._notify_label = Gtk.Label(wrap=True, wrap_mode=Pango.WrapMode.CHAR)
self._notify_label .get_style_context().add_class('app-notification')
self._revealer.add(self._notify_label)
overlay.add_overlay(self._revealer)
overlay.set_overlay_pass_through(self._revealer, True)
overlay.show_all()
self.add(overlay)
self.connect('delete-event', lambda w,e: self.close_device())
def refresh_devices(self):
logging.info('refresh_devices')
self.devices = get_devices(v4ldirs)
if len(self.devices) == 0:
self.close_device()
self.init_gui_device()
self.model.splice(0, self.model.get_n_items(), [GStr(d.name) for d in self.devices])
if len(self.devices):
idx = 0
if self.device in self.devices:
idx = self.devices.index(self.device)
self.device_lb.select_row(self.device_lb.get_row_at_index(idx))
self.gui_open_device(idx)
if len(self.devices) == 0:
self.zero_box.set_visible(True)
self.device_sw.set_visible(False)
self.open_cam_button.set_visible(False)
else:
self.zero_box.set_visible(False)
self.device_sw.set_visible(True)
self.open_cam_button.set_visible(True)
def gui_open_device(self, id):
logging.info('gui_open_device')
# if the selection is empty (after remove_all)
if id == -1:
return
self.close_device()
self.open_device(self.devices[id])
self.init_gui_device()
def reopen_device(self):
opened_page = self.stack.get_visible_child_name()
device = self.device
self.close_device()
self.open_device(device)
self.init_gui_device()
self.stack.set_visible_child_full(opened_page, Gtk.StackTransitionType.NONE)
def open_device(self, device):
logging.info(f'opening device: {device.path}')
try:
self.fd = os.open(device.path, os.O_RDWR, 0)
except Exception as e:
logging.error(f'os.open({device.path}, os.O_RDWR, 0) failed: {e}')
self.camera = CameraCtrls(device.path, self.fd)
self.listener = self.camera.subscribe_events(
lambda c: GLib.idle_add(self.update_ctrl_value, c),
lambda errs: GLib.idle_add(self.notify, '\n'.join(errs)),
)
self.device = device
self.ptz_controllers = PTZHWControllers(self.device.path,
lambda check, p, i: GLib.timeout_add(300, check, p, i),
lambda err: self.notify(err),
lambda i: self.ptz_lb.get_row_at_index(i).get_child().set_active(False),
)
self.ptz_model.splice(0, self.ptz_model.get_n_items(), [GStr(n) for n in self.ptz_controllers.get_names()])
for i in range(self.ptz_model.get_n_items()):
row = self.ptz_lb.get_row_at_index(i)
row.set_activatable(False)
row.get_child().connect('toggled', lambda c, i=i: self.ptz_controllers.set_active(i, c.get_active()))
self.ptz_sw.set_visible(self.camera.has_ptz())
self.ptz_sw.set_sensitive(self.ptz_model.get_n_items() != 0)
self.open_cam_button.set_action_target_value(GLib.Variant('s', self.device.path))
def close_device(self):
if self.fd:
logging.info('close_device')
self.device = None
self.camera = None
self.listener.stop()
self.listener = None
self.ptz_controllers.terminate_all()
self.ptz_controllers = None
os.close(self.fd)
self.fd = 0
def init_gui_device(self):
logging.info('init_gui_device')
if self.frame:
self.frame.destroy()
if self.device is None:
return
self.frame = Gtk.Grid(hexpand=True, halign=Gtk.Align.FILL)
self.grid.attach(self.frame, 0, 0, 1, 1)
stack_box = Gtk.Box(orientation=Gtk.Orientation.VERTICAL, margin=10, vexpand=True, halign=Gtk.Align.FILL)
stack = Gtk.Stack(transition_type=Gtk.StackTransitionType.SLIDE_LEFT_RIGHT, transition_duration=500)
stack_sw = Gtk.StackSwitcher(stack=stack, hexpand=True, halign=Gtk.Align.CENTER)
stack_box.pack_start(stack_sw, False, False, 0)
scrolledwindow = Gtk.ScrolledWindow(child=stack, propagate_natural_height=True, hscrollbar_policy=Gtk.PolicyType.NEVER, vscrollbar_policy=Gtk.PolicyType.AUTOMATIC)
stack_box.pack_start(scrolledwindow, False, False, 0)
footer = Gtk.Box(orientation=Gtk.Orientation.VERTICAL, margin_top=10)
stack_box.pack_start(footer, False, False, 0)
self.frame.attach(stack_box, 0, 1, 1, 1)
self.stack = stack
for page in self.camera.get_ctrl_pages():
page_box = Gtk.Box(orientation=Gtk.Orientation.VERTICAL)
if page.target == 'main':
stack.add_titled(page_box, page.title.lower(), page.title)
elif page.target == 'footer':
sep = Gtk.Separator(margin_bottom=10)
footer.add(sep)
footer.add(page_box)
for cat in page.categories:
if page.target != 'footer':
c_label = Gtk.Label(xalign=0, margin_bottom=10, margin_top=10)
c_label.set_markup(f'<b>{cat.title}</b>')
page_box.pack_start(c_label, False, False, 0)
ctrls_frame = Gtk.Frame()
page_box.pack_start(ctrls_frame, False, False, 0)
ctrls_listbox = Gtk.ListBox(selection_mode=Gtk.SelectionMode.NONE)
ctrls_listbox.set_header_func(lambda row, before: row.set_header(Gtk.Separator()) if before is not None else None)
ctrls_frame.add(ctrls_listbox)
for c in cat.ctrls:
ctrl_row = Gtk.ListBoxRow()
ctrls_listbox.add(ctrl_row)
ctrl_box = Gtk.Box(margin_left=5, margin_right=5, height_request=45)
ctrl_row.add(ctrl_box)
label = Gtk.Label(label=c.name, xalign=0, margin_right=5)
tooltip_markup = f'<b>{c.text_id}</b>'
if c.kernel_id:
tooltip_markup += f' <b>({c.kernel_id})</b>'
if c.tooltip:
tooltip_markup += f'\n\n{c.tooltip}'
label.set_tooltip_markup(tooltip_markup)
ctrl_box.pack_start(label, False, False, 0)
c.gui_ctrls = [label]
c.gui_value_set = None
if c.type == 'integer':
adjustment = Gtk.Adjustment(lower=c.min, upper=c.max, value=c.value, step_increment=1)
adjustment.connect('value-changed', lambda a,c=c: self.update_ctrl(c, a.get_value()))
scale = FormatScale(c.format_value, orientation=Gtk.Orientation.HORIZONTAL,
digits=0, has_origin=False, value_pos=Gtk.PositionType.LEFT, adjustment=adjustment, width_request=264)
if c.zeroer:
scale.connect('button-release-event', lambda sc, e: sc.set_value(0))
scale.connect('key-press-event', self.handle_ptz_speed_key_pressed)
scale.connect('key-release-event', self.handle_ptz_speed_key_released)
if c.step and c.step != 1:
adjustment_step = Gtk.Adjustment(lower=c.min, upper=c.max, value=c.value, step_increment=c.step)
adjustment_step.connect('value-changed', lambda a,c=c,a1=adjustment: [a.set_value(a.get_value() - a.get_value() % c.step),a1.set_value(a.get_value())])
scale.set_adjustment(adjustment_step)
if c.step_big:
scale.get_adjustment().set_page_increment(c.step_big)
if c.scale_class:
scale.get_style_context().add_class(c.scale_class)
if c.default is not None:
scale.add_mark(value=c.default, position=Gtk.PositionType.BOTTOM, markup=None)
if c.text_id == 'zoom_absolute':
self.zoom_absolute_sc = scale
if c.text_id == 'pan_speed':
self.pan_speed_sc = scale
if c.text_id == 'tilt_speed':
self.tilt_speed_sc = scale
if c.text_id == 'pan_absolute':
self.pan_absolute_sc = scale
scale.connect('key-press-event', self.handle_ptz_absolute_key_pressed)
if c.text_id == 'tilt_absolute':
self.tilt_absolute_sc = scale
scale.connect('key-press-event', self.handle_ptz_absolute_key_pressed)
refresh = Gtk.Button(image=Gtk.Image(icon_name='edit-undo-symbolic', icon_size=Gtk.IconSize.BUTTON), valign=Gtk.Align.CENTER, halign=Gtk.Align.START, relief=Gtk.ReliefStyle.NONE)
refresh.connect('clicked', lambda e, c=c, sc=scale: sc.get_adjustment().set_value(c.default))
ctrl_box.pack_start(refresh, False, False, 0)
ctrl_box.pack_end(scale, False, False, 0)
c.gui_value_set = scale.set_value
c.gui_ctrls += [scale, refresh]
c.gui_default_btn = refresh
elif c.type == 'boolean':
switch = Gtk.Switch(valign=Gtk.Align.CENTER, active=c.value, margin_right=5)
switch.connect('state-set', lambda w,state,c=c: self.update_ctrl(c, state))
refresh = Gtk.Button(image=Gtk.Image(icon_name='edit-undo-symbolic', icon_size=Gtk.IconSize.BUTTON), valign=Gtk.Align.CENTER, halign=Gtk.Align.START, relief=Gtk.ReliefStyle.NONE)
if c.default is not None:
refresh.connect('clicked', lambda e,switch=switch,c=c: switch.set_active(c.default))
ctrl_box.pack_start(refresh, False, False, 0)
ctrl_box.pack_end(switch, False, False, 0)
c.gui_value_set = switch.set_active
c.gui_ctrls += [switch, refresh]
c.gui_default_btn = refresh
elif c.type == 'button':
filtered_menu = [m for m in c.menu if m.value is not None and not m.gui_hidden]
children_per_line = min(len(filtered_menu), 4)
box = Gtk.FlowBox(orientation=Gtk.Orientation.HORIZONTAL, homogeneous=True,
min_children_per_line=children_per_line, max_children_per_line=children_per_line,
selection_mode=Gtk.SelectionMode.NONE)
box.set_filter_func(lambda child: child.set_can_focus(False) or True)
refresh = Gtk.Button(image=Gtk.Image(icon_name='edit-undo-symbolic', icon_size=Gtk.IconSize.BUTTON), valign=Gtk.Align.CENTER, halign=Gtk.Align.START, relief=Gtk.ReliefStyle.NONE)
ctrl_box.pack_start(refresh, False, False, 0)
ctrl_box.pack_end(box, False, False, 0)
for m in filtered_menu:
b = Gtk.Button(label=m.name, valign=Gtk.Align.CENTER)
b.connect('clicked', lambda e, c=c, m=m: self.update_ctrl(c, m.text_id))
if c.child_tooltip:
b.set_tooltip_markup(c.child_tooltip)
if m.lp_text_id is not None:
m.gui_lp = Gtk.GestureLongPress(widget=b)
m.gui_lp.connect('pressed', lambda lp, x, y, c=c, m=m: [
lp.set_state(Gtk.EventSequenceState.CLAIMED),
self.update_ctrl(c, m.lp_text_id)
])
if m.use_shortcut:
b.set_label('_' + m.name)
b.set_use_underline(True)
box.add(b)
c.gui_ctrls += b
if c.default is not None:
refresh.connect('clicked', lambda e,c=c: self.update_ctrl(c, c.default))
c.gui_ctrls += [refresh]
c.gui_default_btn = refresh
elif c.type == 'info':
label = Gtk.Label(label=c.value, selectable=True, justify=Gtk.Justification.RIGHT,
wrap=True, wrap_mode=Pango.WrapMode.CHAR,
max_width_chars=48, width_chars=32, xalign=1)
ctrl_box.pack_end(label, False, False, 0)
c.gui_value_set = label.set_label
c.gui_default_btn = None
elif c.type == 'menu':
if len(c.menu) < 4 and not c.menu_dd:
box = Gtk.ButtonBox(valign=Gtk.Align.CENTER)
box.set_layout(Gtk.ButtonBoxStyle.EXPAND)
box.set_homogeneous(False)
rb = None
for m in c.menu:
rb = Gtk.RadioButton(group=rb, label=m.name)
rb.set_mode(False)
rb.set_active(m.text_id == c.value)
rb.connect('toggled', lambda b, c=c, m=m: self.update_ctrl(c, m.text_id) if b.get_active() else None)
box.add(rb)
m.gui_rb = rb
if c.value is None:
rb = Gtk.RadioButton(group=rb, label='Undefined')
rb.set_mode(False)
rb.set_active(True)
rb.set_no_show_all(True)
box.add(rb)
refresh = Gtk.Button(image=Gtk.Image(icon_name='edit-undo-symbolic', icon_size=Gtk.IconSize.BUTTON), valign=Gtk.Align.CENTER, halign=Gtk.Align.START, relief=Gtk.ReliefStyle.NONE)
if c.default is not None:
refresh.connect('clicked', lambda e,c=c: find_by_text_id(c.menu, c.default).gui_rb.set_active(True))
ctrl_box.pack_start(refresh, False, False, 0)
ctrl_box.pack_end(box, False, False, 0)
c.gui_value_set = lambda ctext, c=c: find_by_text_id(c.menu, ctext).gui_rb.set_active(True)
c.gui_ctrls += [m.gui_rb for m in c.menu] + [refresh]
c.gui_default_btn = refresh
else:
wb_cb = Gtk.ComboBoxText(valign=Gtk.Align.CENTER)
for m in c.menu:
wb_cb.append_text(m.name)
if c.value:
idx = find_idx(c.menu, lambda m: m.text_id == c.value)
if idx is not None:
wb_cb.set_active(idx)
else:
err = f'Control {c.text_id}: Can\'t find {c.value} in {[m.text_id for m in c.menu]}'
logging.warning(err)
self.notify(err)
wb_cb.connect('changed', lambda e,c=c: GLib.idle_add(self.update_ctrl, c, c.menu[e.get_active()].text_id))
refresh = Gtk.Button(image=Gtk.Image(icon_name='edit-undo-symbolic', icon_size=Gtk.IconSize.BUTTON), valign=Gtk.Align.CENTER, halign=Gtk.Align.START, relief=Gtk.ReliefStyle.NONE)
if c.default is not None:
refresh.connect('clicked', lambda e,c=c,wb_cb=wb_cb: wb_cb.set_active(find_idx(c.menu, lambda m: m.text_id == c.default)))
ctrl_box.pack_start(refresh, False, False, 0)
ctrl_box.pack_end(wb_cb, False, False, 0)
c.gui_value_set = lambda ctext, c=c, wb_cb=wb_cb: wb_cb.set_active(find_idx(c.menu, lambda m: m.text_id == ctext))
c.gui_ctrls += [wb_cb, refresh]
c.gui_default_btn = refresh
self.update_ctrls_state()
self.grid.show_all()
_, natsize = self.grid.get_preferred_size()
self.resize(natsize.width, natsize.height)
def close_notify(self):
self._revealer.set_reveal_child(False)
self._notify_timeout = None
# False removes the timeout
return False
def notify(self, message, timeout=5):
if self._notify_timeout is not None:
GLib.Source.remove(self._notify_timeout)
self._notify_label.set_text(message)
self._revealer.set_reveal_child(True)
if timeout > 0:
self._notify_timeout = GLib.timeout_add_seconds(timeout, self.close_notify)
def update_ctrl(self, ctrl, value):
# only update if out of sync (when new value comes from the gui)
if ctrl.value != value:
errs = []
self.camera.setup_ctrls({ctrl.text_id: value}, errs)
if errs:
self.notify('\n'.join(errs))
GLib.idle_add(self.update_ctrl_value, ctrl),
return
self.update_ctrls_state()
if ctrl.reopener:
GLib.idle_add(self.reopen_device)
def update_ctrls_state(self):
for c in self.camera.get_ctrls():
self.update_ctrl_state(c)
def update_ctrl_state(self, c):
for gui_ctrl in c.gui_ctrls:
gui_ctrl.set_sensitive(not c.inactive)
if c.gui_default_btn is not None:
visible = not c.inactive and (
c.default is not None and c.value is not None and c.default != c.value or \
c.get_default is not None and not c.get_default()
)
c.gui_default_btn.set_opacity(visible)
c.gui_default_btn.set_can_focus(visible)
def update_ctrl_value(self, c):
if c.reopener:
self.reopen_device()
return
if c.gui_value_set:
c.gui_value_set(c.value)
self.update_ctrl_state(c)
def handle_ptz_speed_key_pressed(self, w, e):
keyval = e.keyval
state = e.state
pan_lower = self.pan_speed_sc.get_adjustment().get_lower()
pan_upper =self.pan_speed_sc.get_adjustment().get_upper()
tilt_lower = self.tilt_speed_sc.get_adjustment().get_lower()
tilt_upper = self.tilt_speed_sc.get_adjustment().get_upper()
if keyval in [Gdk.KEY_Left, Gdk.KEY_KP_Left, Gdk.KEY_a]:
self.pan_speed_sc.set_value(pan_lower)
elif keyval in [Gdk.KEY_Right, Gdk.KEY_KP_Right, Gdk.KEY_d]:
self.pan_speed_sc.set_value(pan_upper)
elif keyval in [Gdk.KEY_Up, Gdk.KEY_KP_Up, Gdk.KEY_w]:
self.tilt_speed_sc.set_value(tilt_upper)
elif keyval in [Gdk.KEY_Down, Gdk.KEY_KP_Down, Gdk.KEY_s]:
self.tilt_speed_sc.set_value(tilt_lower)
elif keyval == Gdk.KEY_KP_End:
self.pan_speed_sc.set_value(pan_lower)
self.tilt_speed_sc.set_value(tilt_lower)
elif keyval == Gdk.KEY_KP_Page_Down:
self.pan_speed_sc.set_value(pan_upper)
self.tilt_speed_sc.set_value(tilt_lower)
elif keyval == Gdk.KEY_KP_Home:
self.pan_speed_sc.set_value(pan_lower)
self.tilt_speed_sc.set_value(tilt_upper)
elif keyval == Gdk.KEY_KP_Page_Up:
self.pan_speed_sc.set_value(pan_upper)
self.tilt_speed_sc.set_value(tilt_upper)
elif self.zoom_absolute_sc is not None:
return self.handle_ptz_key_pressed_zoom(keyval, state)
else:
return False
return True
def handle_ptz_absolute_key_pressed(self, w, e):
keyval = e.keyval
state = e.state
pan_value = self.pan_absolute_sc.get_value()
pan_step = self.pan_absolute_sc.get_adjustment().get_step_increment()
tilt_value = self.tilt_absolute_sc.get_value()
tilt_step = self.tilt_absolute_sc.get_adjustment().get_step_increment()
if keyval in [Gdk.KEY_Left, Gdk.KEY_KP_Left, Gdk.KEY_a]:
self.pan_absolute_sc.set_value(pan_value - pan_step)
elif keyval in [Gdk.KEY_Right, Gdk.KEY_KP_Right, Gdk.KEY_d]:
self.pan_absolute_sc.set_value(pan_value + pan_step)
elif keyval in [Gdk.KEY_Up, Gdk.KEY_KP_Up, Gdk.KEY_w]:
self.tilt_absolute_sc.set_value(tilt_value + tilt_step)
elif keyval in [Gdk.KEY_Down, Gdk.KEY_KP_Down, Gdk.KEY_s]:
self.tilt_absolute_sc.set_value(tilt_value - tilt_step)
elif keyval == Gdk.KEY_KP_End:
self.pan_absolute_sc.set_value(pan_value - pan_step)
self.tilt_absolute_sc.set_value(tilt_value - tilt_step)
elif keyval == Gdk.KEY_KP_Page_Down:
self.pan_absolute_sc.set_value(pan_value + pan_step)
self.tilt_absolute_sc.set_value(tilt_value - tilt_step)
elif keyval == Gdk.KEY_KP_Home:
self.pan_absolute_sc.set_value(pan_value - pan_step)
self.tilt_absolute_sc.set_value(tilt_value + tilt_step)
elif keyval == Gdk.KEY_KP_Page_Up:
self.pan_absolute_sc.set_value(pan_value + pan_step)
self.tilt_absolute_sc.set_value(tilt_value + tilt_step)
elif keyval == Gdk.KEY_KP_Insert:
self.pan_absolute_sc.set_value(0)
self.tilt_absolute_sc.set_value(0)
elif self.zoom_absolute_sc is not None:
return self.handle_ptz_key_pressed_zoom(keyval, state)
else:
return False
return True
def handle_ptz_key_pressed_zoom(self, keyval, state):
zoom_value = self.zoom_absolute_sc.get_value()
zoom_step = self.zoom_absolute_sc.get_adjustment().get_step_increment()
zoom_page = self.zoom_absolute_sc.get_adjustment().get_page_increment()
zoom_lower = self.zoom_absolute_sc.get_adjustment().get_lower()
zoom_upper = self.zoom_absolute_sc.get_adjustment().get_upper()
if keyval in [Gdk.KEY_plus, Gdk.KEY_KP_Add] and state & Gdk.ModifierType.CONTROL_MASK:
self.zoom_absolute_sc.set_value(zoom_value + zoom_page)
elif keyval in [Gdk.KEY_minus, Gdk.KEY_KP_Subtract] and state & Gdk.ModifierType.CONTROL_MASK:
self.zoom_absolute_sc.set_value(zoom_value - zoom_page)
elif keyval in [Gdk.KEY_plus, Gdk.KEY_KP_Add]:
self.zoom_absolute_sc.set_value(zoom_value + zoom_step)
elif keyval in [Gdk.KEY_minus, Gdk.KEY_KP_Subtract]:
self.zoom_absolute_sc.set_value(zoom_value - zoom_step)
elif keyval in [Gdk.KEY_Home]:
self.zoom_absolute_sc.set_value(zoom_lower)
elif keyval in [Gdk.KEY_End]:
self.zoom_absolute_sc.set_value(zoom_upper)
elif keyval in [Gdk.KEY_Page_Up]:
self.zoom_absolute_sc.set_value(zoom_value + zoom_page)
elif keyval in [Gdk.KEY_Page_Down]:
self.zoom_absolute_sc.set_value(zoom_value - zoom_page)
else:
return False
return True
def handle_ptz_speed_key_released(self, w, e):
keyval = e.keyval
if keyval in [Gdk.KEY_Left, Gdk.KEY_Right, Gdk.KEY_KP_Left, Gdk.KEY_KP_Right, Gdk.KEY_a, Gdk.KEY_d]:
self.pan_speed_sc.set_value(0)
elif keyval in [Gdk.KEY_Up, Gdk.KEY_Down, Gdk.KEY_KP_Up, Gdk.KEY_KP_Down, Gdk.KEY_w, Gdk.KEY_s]:
self.tilt_speed_sc.set_value(0)
elif keyval in [Gdk.KEY_KP_End, Gdk.KEY_KP_Page_Down, Gdk.KEY_KP_Home, Gdk.KEY_KP_Page_Up]:
self.pan_speed_sc.set_value(0)
self.tilt_speed_sc.set_value(0)
else:
return False
return True
class CameraCtrlsApp(Gtk.Application):
def __init__(self, *args, **kwargs):
super().__init__(*args, application_id='hu.irl.cameractrls', **kwargs)
self.window = None
self.child_processes = []
def do_startup(self):
Gtk.Application.do_startup(self)
icon_theme = Gtk.IconTheme.get_for_screen(Gdk.Screen.get_default())
icon_theme.append_search_path(f'{sys.path[0]}/pkg')
action = Gio.SimpleAction.new('about', None)
action.connect('activate', self.on_about)
self.add_action(action)
action = Gio.SimpleAction.new('open_camera_window', GLib.VariantType('s'))
action.connect('activate', self.open_camera_window)
self.add_action(action)
action = Gio.SimpleAction.new('quit', None)
action.connect('activate', self.on_quit)
self.add_action(action)
self.set_accels_for_action('app.quit',["<Primary>Q"])
def do_activate(self):
self.window = CameraCtrlsWindow(application=self, title='Cameractrls')
self.window.present()
def on_about(self, action, param):
about = Gtk.AboutDialog(transient_for=self.window, modal=self.window)
about.set_program_name('Cameractrls')
about.set_authors(['Gergo Koteles <[email protected]>'])
about.set_artists(['Jorge Toledo https://lacajita.es'])
about.set_copyright('Copyright © 2022 - 2024 Gergo Koteles')
about.set_license_type(Gtk.License.GPL_3_0)
about.set_logo_icon_name('hu.irl.cameractrls')
about.set_website(ghurl)
about.set_website_label('GitHub')
about.set_version(version)
about.connect('response', lambda d, r: d.destroy())
about.present()
def on_quit(self, action, param):
self.window.close()
def check_preview_open(self, p):
# if process returned
if p.poll() is not None:
(stdout, stderr) = p.communicate()
errstr = str(stderr, 'utf-8')
sys.stderr.write(errstr)
if p.returncode != 0:
self.window.notify(errstr.strip())
# False removes the timeout
return False
return True
def open_camera_window(self, action, device):
win_width, win_height = self.window.get_size()
logging.info(f'open cameraview.py for {device.get_string()} with max size {win_width}x{win_height}')
p = subprocess.Popen([f'{sys.path[0]}/cameraview.py', '-d', device.get_string(), '-s', f'{win_width}x{win_height}'], stderr=subprocess.PIPE)
self.child_processes.append(p)
GLib.timeout_add(300, self.check_preview_open, p)
def kill_child_processes(self):
for proc in self.child_processes:
proc.kill()
if __name__ == '__main__':
app = CameraCtrlsApp()
app.run()
app.kill_child_processes()