Implement fade in and out for frames

[deyan]

Put attached buttons in appearance HUD right after the opacity slider. Put the following tooltip text.

• "Fade in after the current timeline position"
• "Fade out after the current timeline position"
• "Reset visibility - remove effects and set the frame to be visible"

For now, these buttons should do the following

• Fade in - from the beginning of the timeline to the current playhead, the opacity channel is set to 0. The value is incremented with 1 each 10 milliseconds (for one second, the values are changed from 1 to 100, the opacity is set to 100 for the rest of the channel, where values are 100 or 0)
• Fade out - from the current playhead position and value, values are decremented to 0 each 10 milliseconds. The rest of the channel is set to 0.
• Reset - sets the visibility to 100 for the whole channel

[meddle]

• Will try to implement it this way, or if it is easy with the ability to have more fade-in/fade-out effects in a channel.

[meddle]

• In the AppearenceHud all the transparency related controls are placed in a new AlphaControlsContainer which is visible only if the component can be transparent.
• There are three new LogicR3Buttons - FadeInButton, FadeOutButton and ResetButton.
  • The reset button is added after a small horizontal gap in the container (The AlphaControlsContainer is a JPanel with box layout).
• There is new EventIds enumeration in the AlphaControlsContainer, which has a member for the three events, the three new buttons dispatch.
  • For the FadeInButton there is a 'FADE_IN' member.
  • For the FadeOutButton there is a 'FADE_OUT' member.
  • For the ResetButton there is a 'RESET' member.
• The evens dispatched by the buttons are handled by the AppearenceHud's HudLogic. There handlers are:
  • 'ON_FADE_IN', handles the event with id 'FADE_IN', uses a new action FadeInAction to create a fade-in effect for the current FrameView from the current time.
    • The action creates a new channel from the current one, which alpha value from the beginning to the current position is set to 100.
    • Then from the current position to the current position + 1000 (one second), on every 10 milliseconds the alpha is set to be the current alpha minus 1.
    • Then from the current position + 1000 to the end the alpha value is set to 0.
    • The channel computed by the three steps above is set as the new 'KEY_ALPHA' of the current element.
  • 'ON_FADE_OUT', handles the event with id 'FADE_OUT', and uses a new action FadeOutAction to create a fade-out effect for the current FrameView from the current time.
    • The action creates a new channel from the current one. The current alpha becomes the alpha of the current position.
    • Then from the current position to the current position + 1000 (one second), on every 10 milliseconds the alpha is set to be the current alpha plus 1, if it is not greater than or equal to 100.
    • Then from the current position + 1000 to the end the alpha value is set to 100.
    • The channel computed by the three steps above is set as the new 'KEY_ALPHA' of the current element.
  • 'ON_RESET_FRAME_EFFECTS', handles the event with id 'RESET'. It uses AutoAction to set all the values of the visibility channel of the current frame to 0.

[meddle]

Design patch

[pap]

• I think the design satisfies the requirements of the ticket in a good enough way :)
• Be sure to cleanup the code before submitting for implementation review.

[meddle]

• Skinned with the provided icons. The icons are placed in a new directory - 'appearanceHud' in the 'org.sophie2.main.app.halos' module.

[meddle]

• Committed in [10034].
• The system out is cleared up.