327 lines
14 KiB
Python
327 lines
14 KiB
Python
import pygtk
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import gtk
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import pygst
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import gst
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import gobject
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import pango
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import clutter
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class coverViewer(clutter.Group):
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scaleFactor = 1.4
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inactiveOpacity = 150
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def __init__(self, stage, width, height):
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clutter.Group.__init__(self)
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self.stage = stage
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self.videoLibrary = []
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self.textureLibrary = []
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self.current_video_details = video_details_group(width)
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self.covers_group = clutter.Group()
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self.num_covers = 0
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self.cover_gap = 1
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self.num_visible_rows = 3
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self.num_columns = 4
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self.cover_size = int(width / self.num_columns) #200 #A cover will be cover_size * cover_size (X * Y)
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#Setup the current min and max viewable rows
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self.min_visible_rows = 0
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self.max_visible_rows = self.num_visible_rows
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self.currentSelection = 0
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self.add(self.covers_group)
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self.covers_group.show()
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#self.stage.add(self.current_video_description)
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self.current_video_details.show()
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self.current_video_details.show_all()
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#Turns the description group off and on
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def toggle_details(self):
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if self.current_video_details.get_parent() == None:
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self.add(self.current_video_details)
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#Set the position of the details group
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(pos_x, pos_y) = self.get_abs_position()
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#The next two lines are horribly ugly, but all they do is position the details viewer in the middle of the gap between the bottom of the visible cover viewer and the bottom of the stage
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viewer_lower_y = int(pos_y + (self.max_visible_rows * self.cover_size))
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pos_y = viewer_lower_y# + int( (self.stage.get_height() - viewer_lower_y) / 2 - int(self.current_video_details.get_height()/2))
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self.current_video_details.set_position(20, pos_y)
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else:
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self.stage.remove(self.current_video_details)
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def add_video(self, video):
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self.videoLibrary.append(video)
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imagePath = video.getCoverfile()
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tempTexture = clutter.Texture()
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pixbuf = gtk.gdk.pixbuf_new_from_file(imagePath)
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tempTexture.set_pixbuf(pixbuf)
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xy_ratio = float(tempTexture.get_width()) / tempTexture.get_height()
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width = int(self.cover_size * xy_ratio)
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tempTexture.set_width(width)
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tempTexture.set_height(self.cover_size)
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tempTexture.set_opacity(self.inactiveOpacity)
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tempTexture.set_position( (self.num_covers * self.cover_size), 0)
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tempTexture.set_depth(1)
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self.textureLibrary.append(tempTexture)
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#x = (self.cover_gap + self.cover_size) * (self.num_covers/self.num_rows)
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#y = (self.num_covers % self.num_rows) * self.cover_size + ( (self.num_covers % self.num_rows) * self.cover_gap)
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x = (self.num_covers % self.num_columns) * self.cover_size + ( (self.num_covers % self.num_columns) * self.cover_gap)
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y = (self.cover_gap + self.cover_size) * (self.num_covers/self.num_columns)
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#Center the cover
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if width < self.cover_size:
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x = x + (self.cover_size - width)/2
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tempTexture.set_position(x, y)
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#If we're past the maximum rows, make the pics invistible
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if self.num_covers > (self.num_columns * self.num_visible_rows)-1:
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tempTexture.set_opacity(0)
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else:
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self.covers_group.add(tempTexture)
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tempTexture.show()
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self.num_covers = self.num_covers +1
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def select_item(self, incomingItem, outgoingItem):
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self.timeline = clutter.Timeline(10,35)
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self.current_video_details.set_video(self.videoLibrary[incomingItem], self.timeline)
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#Check if the cover is currently not visible
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rolling = False
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if incomingItem > (self.num_columns * self.max_visible_rows-1):
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self.rollViewer(True, self.timeline)
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rolling = True
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if incomingItem < (self.num_columns * self.min_visible_rows):
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self.rollViewer(False, self.timeline)
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rolling = True
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outgoingTexture = self.textureLibrary[outgoingItem]
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incomingTexture = self.textureLibrary[incomingItem]
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alpha = clutter.Alpha(self.timeline, clutter.smoothstep_inc_func)# clutter.ramp_inc_func)
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self.behaviourNew_scale = clutter.BehaviourScale(alpha, 1, self.scaleFactor, clutter.GRAVITY_CENTER)
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self.behaviourNew_z = clutter.BehaviourDepth(alpha, 1, 2)
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#If we're performing a roll (See above) then the incoming opacity should start at 0 rather than the normal inactive opacity
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if rolling:
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self.behaviourNew_opacity = clutter.BehaviourOpacity(alpha, 0, 255)
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else:
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self.behaviourNew_opacity = clutter.BehaviourOpacity(alpha, self.inactiveOpacity, 255)
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self.behaviourOld_scale = clutter.BehaviourScale(alpha, self.scaleFactor, 1, clutter.GRAVITY_CENTER)
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self.behaviourOld_z = clutter.BehaviourDepth(alpha, 2, 1)
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self.behaviourOld_opacity = clutter.BehaviourOpacity(alpha, 255, self.inactiveOpacity)
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self.behaviourNew_scale.apply(incomingTexture)
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self.behaviourNew_z.apply(incomingTexture)
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self.behaviourNew_opacity.apply(incomingTexture)
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self.behaviourOld_scale.apply(outgoingTexture)
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self.behaviourOld_z.apply(outgoingTexture)
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self.behaviourOld_opacity.apply(outgoingTexture)
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self.currentSelection = incomingItem
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self.timeline.start()
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def select_first(self):
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self.timeline = clutter.Timeline(20,80)
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self.current_video_details.set_video(self.videoLibrary[0], self.timeline)
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incomingItem = 0
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incomingTexture = self.textureLibrary[incomingItem]
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alpha = clutter.Alpha(self.timeline, clutter.ramp_inc_func)
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self.behaviourNew_scale = clutter.BehaviourScale(alpha, 1, self.scaleFactor, clutter.GRAVITY_CENTER)
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self.behaviourNew_z = clutter.BehaviourDepth(alpha, 1, 2)
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self.behaviourNew_opacity = clutter.BehaviourOpacity(alpha, self.inactiveOpacity, 255)
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self.behaviourNew_scale.apply(incomingTexture)
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self.behaviourNew_z.apply(incomingTexture)
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self.behaviourNew_opacity.apply(incomingTexture)
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self.currentSelection = incomingItem
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self.timeline.start()
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#This moves the visible row of covers up and down
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# moveUp: True if the covers are to come up, false if they're to go down
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def rollViewer(self, moveUp, timeline):
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if moveUp:
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new_y = self.covers_group.get_y() - self.cover_size
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self.max_visible_rows = self.max_visible_rows + 1
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self.min_visible_rows = self.min_visible_rows + 1
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#Define the row of covers that now needs to disapear / appear
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min_outgoing = (self.min_visible_rows-1) * self.num_columns
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max_outgoing = min_outgoing + self.num_columns
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min_incoming = (self.max_visible_rows-1) * self.num_columns
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max_incoming = min_incoming + self.num_columns
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#Quick check to make sure that max_incoming isn't greater than the max number of images (This occurs when the final row is incomplete)
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if max_incoming > self.num_covers:
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max_incoming = min_incoming + (self.num_covers % self.num_columns)
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else:
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new_y = self.covers_group.get_y() + self.cover_size
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self.max_visible_rows = self.max_visible_rows - 1
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self.min_visible_rows = self.min_visible_rows - 1
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#Define the row of covers that now needs to disapear / appear
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min_incoming = (self.min_visible_rows) * self.num_columns
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max_incoming = min_incoming + self.num_columns
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min_outgoing = (self.max_visible_rows) * self.num_columns
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max_outgoing = min_outgoing + self.num_columns
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#Quick check to make sure that max_outgoing isn't greater than the max number of images (This occurs when the final row is incomplete)
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if max_outgoing > self.num_covers:
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max_outgoing = min_outgoing + (self.num_covers % self.num_columns)
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#Need to add the new row to the group
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self.addIncomingRow(min_incoming, max_incoming)
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#And set the outgoing row to remove after the timeline finishes
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self.timeline.connect('completed', self.removeOutgoingRow, min_outgoing, max_outgoing)
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knots = (\
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(self.covers_group.get_x(), self.covers_group.get_y()),\
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(self.covers_group.get_x(), new_y) \
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)
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alpha = clutter.Alpha(timeline, clutter.ramp_inc_func)
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self.behaviour_path = clutter.BehaviourPath(alpha, knots)
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self.behaviour_incoming = clutter.BehaviourOpacity(alpha, 0, self.inactiveOpacity)
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self.behaviour_outgoing = clutter.BehaviourOpacity(alpha, self.inactiveOpacity, 0)
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self.behaviour_path.apply(self.covers_group)
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#Also need to change a few opacities - This is really messy, but works
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for i in range(min_outgoing, max_outgoing):
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self.behaviour_outgoing.apply(self.textureLibrary[i])
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for i in range(min_incoming, max_incoming):
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self.behaviour_incoming.apply(self.textureLibrary[i])
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def removeOutgoingRow(self, timeline, min, max):
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for i in range(min, max):
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self.covers_group.remove(self.textureLibrary[i])
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def addIncomingRow(self, min, max):
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for i in range(min, max):
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self.covers_group.add(self.textureLibrary[i])
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#xy_ratio = float(self.textureLibrary[i].get_width()) / self.textureLibrary[i].get_height()
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#width = int(self.cover_size * xy_ratio)
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#x = (i % self.num_columns) * self.cover_size + ( (i % self.num_columns) * self.cover_gap)
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#y = (self.cover_gap + self.cover_size) * (i/self.num_columns)
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#Center the cover
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#if width < self.cover_size:
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# x = x + (self.cover_size - width)/2
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#self.textureLibrary[i].set_position(x, y)
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self.textureLibrary[i].show()
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def get_current_video(self):
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return self.videoLibrary[self.currentSelection]
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def on_key_press_event(self, event):
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newItem = None
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if event.keyval == clutter.keysyms.Left:
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#Make sure we're not already on the first cover
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if not self.currentSelection == 0:
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newItem = self.currentSelection - 1
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elif event.keyval == clutter.keysyms.Right:
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#This check makes sure that we're not on the last cover already
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if not self.currentSelection == (self.num_covers-1):
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newItem = self.currentSelection + 1
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elif event.keyval == clutter.keysyms.Down:
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#Check if we're already on the bottom row
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if not (self.currentSelection > (len(self.textureLibrary)-1 - self.num_columns)):
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newItem = self.currentSelection + self.num_columns
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elif event.keyval == clutter.keysyms.Up:
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#Check if we're already on the top row
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if not (self.currentSelection < self.num_columns):
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newItem = self.currentSelection - self.num_columns
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#Final sanity check
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if (newItem < 0) and (not newItem == None):
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newItem = self.currentSelection
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#If there is movement, make the scale happen
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if not newItem == None:
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self.select_item(newItem, self.currentSelection)
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class video_details_group(clutter.Group):
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font = "Lucida Grande "
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title_font_size = 30
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main_font_size = 22
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plot_font_size = 18
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def __init__(self, desired_width):
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clutter.Group.__init__(self)
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self.width = desired_width
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#Add the various labels
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self.title = clutter.Label()
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self.title.set_font_name(self.font + str(self.title_font_size))
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self.title.set_color(clutter.color_parse('White'))
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self.title.set_text("")
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self.title.set_ellipsize(pango.ELLIPSIZE_END)
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self.add(self.title)
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#Not sure how to get the row height before the text is set :(
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self.row_gap = self.title.get_height()
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self.year = clutter.Label()
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self.year.set_font_name(self.font + str(self.main_font_size))
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self.year.set_color(clutter.color_parse('White'))
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self.year.set_text("")
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self.year.set_opacity(220)
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self.year.set_ellipsize(pango.ELLIPSIZE_END)
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self.year.set_position(0, self.row_gap)
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self.add(self.year)
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self.director = clutter.Label()
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self.director.set_font_name(self.font + str(self.main_font_size))
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self.director.set_color(clutter.color_parse('White'))
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self.director.set_text("")
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self.director.set_opacity(220)
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self.director.set_ellipsize(pango.ELLIPSIZE_END)
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self.director.set_position(int(self.year.get_width()), self.row_gap)
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self.add(self.director)
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self.plot = clutter.Label()
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self.plot.set_font_name(self.font + str(self.plot_font_size))
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self.plot.set_color(clutter.color_parse('White'))
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self.plot.set_text("")
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self.plot.set_opacity(220)
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#self.plot.set_ellipsize(pango.ELLIPSIZE_END)
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self.plot.set_position(0, int(self.row_gap*2))
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self.add(self.plot)
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self.show_all()
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def set_video_bare(self,video):
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self.timeline = clutter.Timeline(10,45)
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self.set_video(video, self.timeline)
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def set_video(self, video, timeline):
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self.video = video
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self.title.set_text(video.title)
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self.title.set_width(self.width)
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self.year.set_text("Year: " + str(video.year))
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self.director.set_text(" Director: " + str(video.director))
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self.director.set_position(int(self.year.get_width()), self.row_gap)
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self.director.set_width(int(self.width - self.year.get_width()))
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self.plot.set_text(video.plot)
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self.plot.set_width(self.width) |