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File metadata and controls

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Interaction

Scope: Updating and synchronization of rendering controls.

GUI Location: Main window - Right Hand Pane - Preview Tab Full Image Viewer - Rendering Settings Panel

General controls

Format:

Set-up: ...

Control

  • State
    • Condition
      • Clarification
  • Implementation

Save

  • Disabled
  • default
  • user permissions exclude action
  • Enabled
  • user permissions allow
    • this should be checked using canAnnotate on the image
  • when the settings have been changed
  • At Event
  • check against settings prior to action
  • Action
  • saves settings for current image and current user
    • if a lut is selected, the name of the lut will be saved e.g. cool.lut
  • trigger a "update thumbnail" event - needs to update
    • thumbnail under User Settings
    • thumbnail on left-hand side

Save to All

  • Disabled
  • user permissions exclude action.
  • Enabled
  • user permissions allow
    • this should be checked using canAnnotate on the image
  • At Event
  • check against settings prior to action
  • Action
  • saves settings for current image and current user to all selected images or all the images in the left-hand side e.g. images in dataset
    • this method will use the applySettingsToSet method. see view.py
  • trigger a "update thumbnail" event - needs to update
    • thumbnail under User Settings
    • thumbnail on left-hand side

Undo

  • Disabled
  • default
  • Enabled
  • when the settings have been changed
  • At Event
  • check against settings prior to action
  • Action
  • undo the last rendering change
  • trigger a "render" image event
  • trigger a modification of the enabled flag of the Save button

Redo As above except:

  • Action
  • redo the last rendering change

Copy

  • Enabled
  • by default
  • Action
  • copy the rendering settings

Paste

  • Disabled
  • default
  • for the image the settings are copied from
  • Enabled
  • when saved settings available to paste
  • At Event
  • check against settings prior to action
  • Action
  • undo the last rendering change
  • trigger a "render" image event
  • trigger a modification of the enabled flag of the Save button

Rendering controls

Most of the controls are initialised using the rendering settings retrieved from the server.

Channel controls

The following change will trigger a "render" image event and trigger a modification of the enabled flag of the save button.

Controls per channel

For all:

  • Default value
  • set using the retrieved settings

Channel button

  • At Event
  • toggles channel on/off
  • Action
  • trigger a "render" image event
  • trigger a modification of the enabled flag of the Save button
  • trigger a modification of the enabled flag of the Undo button

Slider

  • At Event - move left-right knobs
  • sets the input intensity interval
  • updates values in text fields on both side of the slider
  • Action - when slider released
  • trigger a "render" image event
  • trigger a modification of the enabled flag of the Save button
  • trigger a modification of the enabled flag of the Undo button

Text field

  • Action - when Return hit or focus lost
  • update slider's value
  • trigger a "render" image event
  • trigger a modification of the enabled flag of the Save button
  • trigger a modification of the enabled flag of the Undo button

Color picker

  • At Event
  • open color-picker dialog

Color picker dialog

Set-up: LUT loading

  • lut are loaded using the method listLuts_json see views.py
  • currently the icon associated to a lut is determined using a pre-build image. (To be modified)

Toolbar button - color wheel

  • Action
  • changes selector pane to color wheel selector

Toolbar button - rgb

  • Action
  • changes selector pane to rgb selector

Toolbar button - default color picker button

  • Action
  • changes selector pane to default color picker selector

Color/lut selection

  • Default value
  • set using the retrieved settings
  • At Event
  • selects color/lut
  • Action
  • enable Preview, Accept, Revert buttons

Alpha slider

  • Default value
  • set using the retrieved settings
  • At Event - move knob
    • sets alpha value
    • updates value in text fields on right of the slider
  • Action
  • enable Preview, Accept, Revert buttons

Preview button

  • Disabled
  • default
  • Enabled
  • when the settings have been changed
  • Action
  • trigger a "render" image event
  • trigger a modification of the enabled flag of the Save button
  • trigger a modification of the enabled flag of the Undo button

Accept button

  • Disabled
  • default
  • Enabled
  • when the settings have been changed
  • Action
  • trigger a "render" image event
  • trigger a modification of the enabled flag of the Save button
  • trigger a modification of the enabled flag of the Undo button
  • background of the button and the slider updated
  • close color picker dialog

Cancel button

  • Enabled
  • all the time
  • Action
  • revert to rendering settings at time of opening of color picker
  • update color picker display
  • trigger rendering settings update - ? only if Preview had been used

Controls for all channels

Greyscale checkbox

  • Unchecked
  • default
  • Event - check
  • toggles all on channels off
  • set rendering to grey scale
  • Event - uncheck
  • toggles all channels that were on back on
  • set rendering to previous
  • Action
  • trigger a "render" image event
  • trigger a modification of the enabled flag of the Save button
  • trigger a modification of the enabled flag of the Undo button

For all:

  • Enabled
  • all the time

Min/Max button

  • Action
  • Set the start/end values of the intensity interval to the global min/max
  • trigger a "render" image event
  • trigger a modification of the enabled flag of the Save button
  • trigger a modification of the enabled flag of the Undo button
  • Note
  • global min/max are calculated at import if calculate stats is on. The default values are 0 and 1.

Full Range button

  • Action
  • Set the start/end values of the intensity interval to the min/max values of the pixels interval e.g. 0 to 65535 for 16 bit pixels type
  • trigger a "render" image event
  • trigger a modification of the enabled flag of the Save button
  • trigger a modification of the enabled flag of the Undo button

Imported button

  • Action
  • will request new rendering settings - this means that z/t, color, pixels intensity values will be changed, the mapping family used for each channel - all settings need to be re-initialized.
  • trigger a "render" image event
  • trigger a modification of the enabled flag of the Save button
  • trigger a modification of the enabled flag of the Undo button

Users settings

User setting thumbnail and text

  • thumbnail displayed is generated using the last settings saved by the users who viewed the image
  • current implementation
  • one thumbnail per user
  • text displayed under the thumbnail
  • from string composed of the first name and last name of the user who viewed the image and saved settings
  • thumbnail selected
  • all settings re-initialized
  • trigger a "render" image event
  • trigger a modification of the enabled flag of the Save button
  • trigger a modification of the enabled flag of the Undo button

Useful links to see interactions:

Histogram

Describe how the UI components are updated when the selection changes.

Show Histogram checkbox

  • Unchecked
  • default
  • Event - check
  • display the histogram just above the channels
  • Event - uncheck
  • hides the histogram
  • Action
  • histogram displayed for the first active channel
  • if the first channel is inactive the histogram corresponding to the next active channel is displayed
  • if there is no active channel last channel is displayed

Update of intensity values - slider knobs moved or values in the start/end text fields updated

  • vertical bars indicating the input intervals are updated
  • if histogram displayed not the one corresponding to the channel slider
  • histogram updated first
  • when field selected
  • histogram updated
  • when color/lut and histogram update
  • if the histogram corresponding to the channel is displayed the color of the histogram is updated