Package org.eclipse.nebula.widgets.nattable.ui.scaling

Class ScalingUtil

java.lang.Object
org.eclipse.nebula.widgets.nattable.ui.scaling.ScalingUtil
public final class ScalingUtil extends Object
Helper class for scaling calculations.
Since:
2.0

  • Method Details

    • zoomIn

      public static void zoomIn(NatTable natTable, Consumer<IConfigRegistry> registryUpdater)
      Performs a ConfigureScalingCommand to increase the scaling to "zoom in" a NatTable.
      Parameters:
      natTable - The NatTable instance on which the zoom in operation should be performed.
      registryUpdater - Callback to trigger registry updates. Needed to re-register image cell painters for example.

    • zoomOut

      public static void zoomOut(NatTable natTable, Consumer<IConfigRegistry> registryUpdater)
      Performs a ConfigureScalingCommand to decrease the scaling to "zoom out" a NatTable.
      Parameters:
      natTable - The NatTable instance on which the zoom in operation should be performed.
      registryUpdater - Callback to trigger registry updates. Needed to re-register image cell painters for example.

    • zoomIn

      public static void zoomIn(NatTable natTable, boolean percentageIncrease, Consumer<IConfigRegistry> registryUpdater)
      Performs a ConfigureScalingCommand to increase the scaling to "zoom in" a NatTable.
      Parameters:
      natTable - The NatTable instance on which the zoom in operation should be performed.
      percentageIncrease - true if the zoom in should be done by 10%, false if the next OS scaling factor should be used.
      registryUpdater - Callback to trigger registry updates. Needed to re-register image cell painters for example.
      Since:
      2.6

    • zoomOut

      public static void zoomOut(NatTable natTable, boolean percentageDecrease, Consumer<IConfigRegistry> registryUpdater)
      Performs a ConfigureScalingCommand to decrease the scaling to "zoom out" a NatTable.
      Parameters:
      natTable - The NatTable instance on which the zoom in operation should be performed.
      percentageDecrease - true if the zoom out should be done by 10%, false if the next OS scaling factor should be used.
      registryUpdater - Callback to trigger registry updates. Needed to re-register image cell painters for example.
      Since:
      2.6

    • getNewZoomOutDPI

      public static int getNewZoomOutDPI(int currentDPI)
      Get the new DPI value for zoom out based on the given DPI value. The minimum value is 12.
      Parameters:
      currentDPI - The current active DPI value.
      Returns:
      The new DPI value for zooming out.

    • getNewZoomInDPI

      public static int getNewZoomInDPI(int currentDPI)
      Get the new DPI value for zoom in based on the given DPI value. The maximum value is 288.
      Parameters:
      currentDPI - The current active DPI value.
      Returns:
      The new DPI value for zooming in.

    • getNewZoomOutDPI

      public static int getNewZoomOutDPI(int currentDPI, boolean percentageDecrease)
      Get the new DPI value for zoom out based on the given DPI value. The minimum value is 12.
      Parameters:
      currentDPI - The current active DPI value.
      percentageDecrease - true if the zoom out should be done by 10%, false if the next OS scaling factor should be used.
      Returns:
      The new DPI value for zooming out.
      Since:
      2.6

    • getNewZoomInDPI

      public static int getNewZoomInDPI(int currentDPI, boolean percentageIncrease)
      Get the new DPI value for zoom in based on the given DPI value. The maximum value is 288.
      Parameters:
      currentDPI - The current active DPI value.
      percentageIncrease - true if the zoom in should be done by 10%, false if the next OS scaling factor should be used.
      Returns:
      The new DPI value for zooming in.
      Since:
      2.6