3.6 Preference Window

As shown in Figure 3.28, the Preference window adjusts the various display properties of the visualization program. The parameters and their definitions are listed in Tables 3.16, 3.18, 3.20, 3.22 , and 3.24.

Table 3.16: Parameters for the section of Zoomable Window Reinitialization in the Preference window.

Parameter	Values	Description
Y_AXIS_ROOT_LABEL	any text	Label for the root node of the y-axis tree label in the left panel.
INIT_SLOG2_LEVEL_READ	+ve integer	The number of slog2 levels being read into memory when the Timeline window is initialized, the integer affects the zooming and scrolling performance exponentially (in an asymptotic sense).
AUTO_WINDOWS_LOCATION	true, false	Whether to let Jumpshot-4 automatically set windows placement
SCREEN_HEIGHT_RATIO	0.0 ... 1.0	Ratio of the initial timeline canvas height to the screen height
TIME_SCROLL_UNIT_RATIO	0.0 ... 1.0	Unit increment of the horizontal scrollbar in the fraction of timeline canvas's width.

Table 3.18: Parameters for the section of All Zoomable Windows in the Preference window.

Parameter	Values	Description
Y_AXIS_ROOT_VISIBLE	true, false	Whether to show the top of the y-axis tree-styled directory label.
ACTIVE_REFRESH	false	Whether to let Jumpshot-4 actively update the timeline canvas.
BACKGROUND_COLOR	Black, DarkGray, Gray, LightGray, White	Background color of the timeline canvas
STATE_HEIGHT_FACTOR	0.0 ... 1.0	Ratio of the outermost rectangle height to row height. The larger the factor is, the larger the outermost rectangle will be with respect to the row height.
NESTING_HEIGHT_FACTOR	0.0 ... 1.0	The gap ratio between successive nesting rectangles. The larger the factor is, the smaller the gap will be.
ARROW_ANTIALIASING	default, on, off	Whether to draw arrow with anti-aliasing lines. Turning this on will slow down the canvas drawing by a factor of 3.
MIN_WIDTH_TO_DRAG	integer	Minimum width in pixels to be considered a dragged operation.
CLICK_RADIUS_TO_LINE	+ve integer	Radius in pixels for a click to be considered on the arrow.
LEFTCLICK_INSTANT_ZOOM	true, false	Whether to zoom in immediately after left mouse click on canvas.

Table 3.20: Parameters for the section of Timeline Zoomable Window in the Preference window.

Parameter	Values	Description
STATE_BORDER	ColorRaised, ColorLowered, WhiteRaised, WhiteLowered, WhitePlain, Empty	Border style of real states.
ARROW_HEAD_LENGTH	+ve integer	Length of arrow head in pixels.
ARROW_HEAD_HALF_WIDTH	+ve integer	Half-width of arrow head's base in pixels.
PREVIEW_STATE_DISPLAY	FitMostLegends, OverlapInclusionRatio, CumulativeInclusionRatio, OverlapExclusionRatio, CumulativeExclusionRatio, BaseAlignedCumulativeExclusionRatio	Display option of Preview state when Timeline window starts up.
PREVIEW_STATE_BORDER	ColorRaised, ColorLowered, ColorXOR, WhiteRaised, WhiteLowered, WhitePlain, Empty	Border style of preview state.
PREVIEW_STATE_BORDER_W	integer	The empty border insets' width in pixels for the Preview state.
PREVIEW_STATE_BORDER_H	integer	The empty border insets' height in pixels for the Preview state.
PREVIEW_STATE_LEGEND_H	integer	Minimum height of the legend division (category strip) in pixels inside THICKNESS the Preview state
PREVIEW_ARROW_LOG_BASE	integer	The logarithmic base of the number of real arrows amalgamated in preview arrow. Hence, this determines the Preview arrow's thickness.
SEARCH_ARROW_LENGTH	integer	Length of the search marker's arrow in pixels
SEARCH_FRAME_THICKNESS	integer	Thickness in pixels of the popup frame that highlights the searched drawable
SEARCHED_OBJECT_ON_TOP	true, false	Whether to display the searched object on top of the search frame.

Table 3.22: Parameters for the section of Histogram Zoomable Window in the Preference window.

Parameter	Values	Description
HISTOGRAM_ZERO_ORIGIN	true, false	Whether the time ruler is in duration, i.e. starts with 0.0 seconds.
SUMMARY_STATE_BORDER	ColorRaised, ColorLowered, ColorXOR, WhiteRaised, WhiteLowered, WhitePlain, Empty	Border style of summary state when Histogram window starts up.
SUMMARY_ARROW_LOG_BASE	integer	The logarithmic base of the number of real arrows amalgamated in summary arrow. Hence, this determines the summary arrow's thickness.

Table 3.24: Parameters for the section of theLegend window in the Preference window.

Parameter	Values	Description
LEGEND_PREVIEW_ORDER	true, false	Whether to arrange the legends with a hidden preview order.
LEGEND_TOPOLOGY_ORDER	true, false	Whether to arrange the legends with a hidden topology order.