def on_key_press_event(stage, event):
scroll = stage.get_first_child()
menu = scroll.get_first_child()
key = event.keyval
if key == Clutter.KEY_q:
Clutter.main_quit()
return True
if key == Clutter.KEY_Up:
item = menu.select_prev()
if item is not None:
pos = Clutter.Point()
(pos.x, pos.y) = item.get_position()
scroll.scroll_to_point(pos)
return True
if key == Clutter.KEY_Down:
item = menu.select_next()
if item is not None:
pos = Clutter.Point()
(pos.x, pos.y) = item.get_position()
scroll.scroll_to_point(pos)
return True
if key == Clutter.KEY_Return or key == Clutter.KEY_KP_Enter:
menu.activate_item()
return True
return False
def _startThumbnailing(self):
if not self.pipeline:
# Can happen if stopGeneration is called because the clip has been
# removed from the timeline after the PreviewGeneratorManager
# started this job.
return
self.debug('Now generating thumbnails for: %s',
filename_from_uri(self.uri))
query_success, duration = self.pipeline.query_duration(Gst.Format.TIME)
if not query_success or duration == -1:
self.debug("Could not determine duration of: %s", self.uri)
duration = self.duration
else:
self.duration = duration
self.queue = list(range(0, duration, self.thumb_period))
self._checkCPU()
if self.bElement.props.in_point != 0:
position = Clutter.Point()
position.x = Zoomable.nsToPixel(self.bElement.props.in_point)
self.scroll_to_point(position)
self._addVisibleThumbnails()
# Save periodically to avoid the common situation where the user exits
# the app before a long clip has been fully thumbnailed.
# Spread timeouts between 30-80 secs to avoid concurrent disk writes.
random_time = randrange(30, 80)
GLib.timeout_add_seconds(random_time, self._autosave)
# Remove the GSource
return False
def do_allocate(self, actor, allocation, flags):
def get_visible_children(actor):
n_visible_children = 0
for child in actor:
if not child.props.visible:
continue
n_visible_children += 1
return n_visible_children
n_items = get_visible_children(actor)
if n_items == 0:
return
x_offset, y_offset = allocation.get_origin()
avail_width, avail_height = allocation.get_size()
self.do_get_preferred_width(actor, avail_width)
self.do_get_preferred_height(actor, avail_height)
item_index = 0
n_items_per_row = 0
center = Clutter.Point()
radius = 0
if self._state == MultiLayout.GRID:
n_items_per_row = self._get_items_per_row(avail_width)
item_x = x_offset
item_y = y_offset
elif self._state == MultiLayout.CIRCLE:
radius = min((avail_width - self._cell_width) / 2, (avail_height - self._cell_height) / 2)
center.x = allocation.x2 / 2
center.y = allocation.y2 / 2
for child in actor:
child_alloc = Clutter.ActorBox()
if self._state == MultiLayout.GRID:
if item_index == n_items_per_row:
item_index = 0
item_x = x_offset
item_y += self._cell_height + self._spacing
child_alloc.x1 = item_x
child_alloc.y1 = item_y
item_x += self._cell_width + self._spacing
elif self._state == MultiLayout.CIRCLE:
theta = 2.0 * math.pi / n_items * item_index
child_alloc.x1 = center.x + radius * math.sin(theta) - (self._cell_width / 2)
child_alloc.y1 = center.y + radius * math.cos(theta) - (self._cell_height / 2)
child_alloc.x2 = child_alloc.x1 + self._cell_width
child_alloc.y2 = child_alloc.y1 + self._cell_height
child.allocate(child_alloc, flags)
item_index += 1
def do_allocate(self, container, allocation, flags):
n_items = MultiLayout._get_visible_children(container)
if n_items == 0:
return
x_offset, y_offset = allocation.get_origin()
avail_width, avail_height = allocation.get_size()
self.get_preferred_width(container, avail_width)
self.get_preferred_height(container, avail_height)
item_index = 0
if self.state == 0:
n_items_per_row = MultiLayout._get_items_per_row(
avail_width, self.cell_width, self.spacing)
item_x = x_offset
item_y = y_offset
elif self.state == 1:
center = Clutter.Point()
center.x = allocation.x2 // 2
center.y = allocation.y2 // 2
radius = min((avail_width - self.cell_width) // 2,
(avail_height - self.cell_height) // 2)
for child in container.get_children():
child_allocation = Clutter.ActorBox()
if not child.is_visible():
continue
if self.state == 0:
if item_index == n_items_per_row:
item_index = 0
item_x = x_offset
item_y += self.cell_height + self.spacing
child_allocation.x1 = item_x
child_allocation.y1 = item_y
child_allocation.x2 = child_allocation.x1 + self.cell_width
child_allocation.y2 = child_allocation.y1 + self.cell_height
item_x += self.cell_width + self.spacing
elif self.state == 1:
# Should be arythmetic operation for floating point.
theta = 2 * math.pi / n_items * item_index
child_allocation.x1 = center.x + radius * math.sin(theta) - (
self.cell_width // 2)
child_allocation.y1 = center.y + radius * -1 * math.cos(
theta) - (self.cell_height // 2)
child_allocation.x2 = child_allocation.x1 + self.cell_width
child_allocation.y2 = child_allocation.y1 + self.cell_height
child.allocate(child_allocation, flags)
item_index += 1
def _updateScrollPosition(self, adjustment):
self._scroll_pos_ns = Zoomable.pixelToNs(self.hadj.get_value())
point = Clutter.Point()
point.x = self.hadj.get_value()
point.y = self.vadj.get_value()
self.point = point
self.timeline.scroll_to_point(point)
point.x = 0
self.controls.scroll_to_point(point)
def listbox_select(lb,
offset,
offsetType=SelectOffsetType.START,
animOrientation=None,
colorizeEffect=None,
scrollToView=True):
cnt = lb.get_n_children()
aID = lb.get_id()
curIndex = gActors[aID]['curIndex']
if offsetType == SelectOffsetType.CUR:
nxtIndex = (curIndex + offset) % cnt
elif offsetType == SelectOffsetType.START:
nxtIndex = offset % cnt
#while nxtIndex < 0:
# nxtIndex = cnt + nxtIndex
curActor = lb.get_child_at_index(curIndex)
nxtActor = lb.get_child_at_index(nxtIndex)
curActor.save_easing_state()
nxtActor.save_easing_state()
lb.save_easing_state()
lb.set_easing_duration(500)
if scrollToView:
nxtActorPos = nxtActor.get_position()
point = Clutter.Point()
point.x = nxtActorPos[0]
point.y = nxtActorPos[1]
lb.scroll_to_point(point)
if colorizeEffect != None:
curActor.remove_effect(colorizeEffect)
curActor.set_scale(1, 1)
if (animOrientation == None):
listOrientation = lb.get_layout_manager().get_orientation()
if listOrientation == Clutter.Orientation.HORIZONTAL:
animOrientation = AnimOrientation.VERTICAL
elif listOrientation == Clutter.Orientation.VERTICAL:
animOrientation = AnimOrientation.HORIZONTAL
else:
print("WARN:animate_listbox:Unknown listbox Orientation")
animOrientation = AnimOrientation.BOTH
if (animOrientation == AnimOrientation.HORIZONTAL):
xScale = 1 + LB_SELSCALE_PERCENT
yScale = 1
elif (animOrientation == AnimOrientation.VERTICAL):
xScale = 1
yScale = 1 + LB_SELSCALE_PERCENT
else:
xScale = 1 + LB_SELSCALE_PERCENT
yScale = 1 + LB_SELSCALE_PERCENT
nxtActor.set_scale(xScale, yScale)
if colorizeEffect != None:
nxtActor.add_effect(colorizeEffect)
curActor.restore_easing_state()
nxtActor.restore_easing_state()
lb.restore_easing_state()
gActors[aID]['curIndex'] = nxtIndex
def __init__(self, container):
Clutter.ScrollActor.__init__(self)
Zoomable.__init__(self)
self.bTimeline = None
self._container = container
self.elements = []
self.ghostClips = []
self.selection = Selection()
self._scroll_point = Clutter.Point()
self.lastPosition = 0 # Saved for redrawing when paused
self._createPlayhead()
self._createSnapIndicator()
def _createUi(self):
self.embed = GtkClutter.Embed()
self.embed.get_accessible().set_name("timeline canvas") # for dogtail
self.stage = self.embed.get_stage()
self.timeline = TimelineStage(self)
self.controls = ControlContainer(self.timeline)
self.zoomBox = ZoomBox(self)
self.shiftMask = False
self.controlMask = False
# TODO: make the bg a gradient from (0, 0, 0, 255) to (50, 50, 50, 255)
self.stage.set_background_color(Clutter.Color.new(31, 30, 33, 255))
self.timeline.set_position(CONTROL_WIDTH, 0)
self.controls.set_position(0, 0)
self.controls.set_z_position(2)
self.stage.add_child(self.controls)
self.stage.add_child(self.timeline)
self.stage.connect("destroy", quit_)
self.stage.connect("button-press-event", self._clickedCb)
self.stage.connect("button-release-event", self._releasedCb)
self.embed.connect("scroll-event", self._scrollEventCb)
if self.gui:
self.gui.connect("key-press-event", self._keyPressEventCb)
self.gui.connect("key-release-event", self._keyReleaseEventCb)
self.embed.connect("enter-notify-event", self._enterNotifyEventCb)
self.point = Clutter.Point()
self.point.x = 0
self.point.y = 0
self.scrolled = 0
self.zoomed_fitted = True
self.pressed = False
self._packScrollbars(self)
self.stage.show()
def _inpointChangedCb(self, unused_bElement, unused_value):
position = Clutter.Point()
position.x = Zoomable.nsToPixel(self.bElement.props.in_point)
self.scroll_to_point(position)
self._update()
def _handle_lb_mouse(actor, event):
global gLBMMCnt
#print("INFO:LbMouse:{}:{}:{},{}:{}".format(event.time, actor, event.x, event.y, event.type))
aID = actor.get_id()
orientation = actor.get_layout_manager().get_orientation()
if event.type == Clutter.EventType.BUTTON_PRESS:
dprint(DEBUG_LBM, "DBUG:LBMouse:BtnPress", aID, gLBMMCnt,
gActors[aID]['posX'], gActors[aID]['posY'])
gActors[aID]['prevPos'] = (event.x, event.y)
gActors[aID]['prevTime'] = event.time
gActors[aID]['startTime'] = event.time
return Clutter.EVENT_PROPAGATE
elif event.type == Clutter.EventType.MOTION:
gLBMMCnt += 1
prevPos = gActors[aID]['prevPos']
prevTime = gActors[aID]['prevTime']
x = gActors[aID]['posX']
y = gActors[aID]['posY']
if prevTime != None:
timeDelta = event.time - prevTime
else:
timeDelta = 54321
if (timeDelta < LB_GESTURE_DELTATIME_MS):
xD = event.x - prevPos[0]
yD = event.y - prevPos[1]
if abs(xD) > abs(yD):
x -= xD
bHorizScroll = True
bVertiScroll = False
else:
y -= yD
bVertiScroll = True
bHorizScroll = False
if (x >= 0) and (y >= 0):
if ((orientation == Clutter.Orientation.HORIZONTAL) and
(x > 0) and bHorizScroll) or (
(orientation == Clutter.Orientation.VERTICAL) and
(y > 0) and bVertiScroll):
dprint(DEBUG_LBM_EXTRA, "DBUG:LBMouse:Motion: Will Scroll",
aID, gLBMMCnt, x, y)
actor.save_easing_state()
point = Clutter.Point()
point.x = x
point.y = y
actor.scroll_to_point(point)
gActors[aID]['posX'] = x
gActors[aID]['posY'] = y
actor.restore_easing_state()
else:
dprint(DEBUG_LBM_NEGPATH,
"DBUG:LBMouse:Motion: Not my scroll", aID, gLBMMCnt)
return False
else:
if ((orientation == Clutter.Orientation.HORIZONTAL) and
(x < 0)) or ((orientation == Clutter.Orientation.VERTICAL)
and (y < 0)):
dprint(DEBUG_LBM,
"DBUG:LBMouse:Motion: Scroll already at boundry",
aID, gLBMMCnt, x, y)
if gActors[aID]['blur'] == False:
actor.add_effect(blurEffect)
gActors[aID]['blur'] = True
Clutter.threads_add_timeout(GLib.PRIORITY_DEFAULT,
LB_CLEANUP_TIMEOUT,
_lb_scroll_cleanup, actor)
else:
dprint(
DEBUG_LBM_NEGPATH,
"DBUG:LBMouse:Motion: Scroll Pos -ve, Not mine, just passing up",
aID, gLBMMCnt, x, y, xD, yD)
return False
gActors[aID]['prevPos'] = (event.x, event.y)
gActors[aID]['prevTime'] = event.time
return True
else:
dprint(DEBUG_LBM_NEGPATH, "DBUG:LBMouse:Motion: Stray or Delayed",
aID, gLBMMCnt, timeDelta)
return False
elif event.type == Clutter.EventType.BUTTON_RELEASE:
dprint(DEBUG_LBM, "DBUG:LBMouse:BtnRelease", aID, gLBMMCnt,
gActors[aID]['posX'], gActors[aID]['posY'])
gActors[aID]['startTime'] = None
gActors[aID]['prevPos'] = None
gActors[aID]['prevTime'] = None
if gActors[aID]['blur']:
actor.remove_effect(blurEffect)
gActors[aID]['blur'] = False
return Clutter.EVENT_PROPAGATE
# kaa imports
import kaa
import kaa.imlib2
# clutter imports
from gi.repository import Clutter as clutter
from gi.repository import GObject as gobject
# candy backend import
import candy
# register the thread pool for loading images
kaa.register_thread_pool('candy::photo', kaa.ThreadPool())
CENTER = clutter.Point()
CENTER.x = 0.5
CENTER.y = 0.5
class Widget(candy.Widget):
"""
Backend widget class
"""
def create(self):
"""
Create the clutter object
"""
self.obj = clutter.Group.new()
self.obj.show()
self.textures = {}
def scroll_to_item(scroll, item):
pos = Clutter.Point()
pos.x, pos.y = item.get_position()
scroll.scroll_to_point(pos)