Class DefaultColumnGroupHeaderRenderer

    • Field Detail

      • leftMargin

        int leftMargin
      • rightMargin

        int rightMargin
      • topMargin

        int topMargin
      • bottomMargin

        int bottomMargin
      • imageSpacing

        int imageSpacing
      • textLayout

        private org.eclipse.swt.graphics.TextLayout textLayout
    • Constructor Detail

      • DefaultColumnGroupHeaderRenderer

        public DefaultColumnGroupHeaderRenderer()
    • Method Detail

      • paint

        public void paint​(org.eclipse.swt.graphics.GC gc,
                          java.lang.Object value)
        Paints the visual representation of the given value on the given GC. The actual class of the value object is determined by the use of the implementing class.

        Implementors need to respect the bounds values that may have been specified. The bounds values may affect the x and y values for all drawing operations as well as the width and heights. Implementors may use a Transform to translate the coordinates of all the drawing operations, otherwise they will need to offset each draw.

        Parameters:
        gc - GC to paint with
        value - the value being painted
      • computeSize

        public org.eclipse.swt.graphics.Point computeSize​(org.eclipse.swt.graphics.GC gc,
                                                          int wHint,
                                                          int hHint,
                                                          java.lang.Object value)
        Returns the size of the given value's visual representation.
        Parameters:
        gc - convenience GC for string and text extents
        wHint - given width (or SWT.DEFAULT)
        hHint - given height (or SWT.DEFAULT)
        value - value to be sized
        Returns:
        the size
      • notify

        public boolean notify​(int event,
                              org.eclipse.swt.graphics.Point point,
                              java.lang.Object value)
        Mechanism used to notify the light weight widgets that an event occurred that it might be interested in.
        Parameters:
        event - Event type.
        point - Location of event.
        value - New value.
        Returns:
        widget handled the event.
      • getToggleBounds

        public org.eclipse.swt.graphics.Rectangle getToggleBounds()
        Returns the bounds of the toggle within the header (typically only group headers have toggles) or null.
        Overrides:
        getToggleBounds in class GridHeaderRenderer
        Returns:
        toggle bounds or null if no toggle exists.
      • setDisplay

        public void setDisplay​(org.eclipse.swt.widgets.Display display)
        Sets the display.
        Specified by:
        setDisplay in interface IRenderer
        Overrides:
        setDisplay in class AbstractRenderer
        Parameters:
        display - Display.
      • getTextBounds

        public org.eclipse.swt.graphics.Rectangle getTextBounds​(java.lang.Object value,
                                                                boolean preferred)
        Returns the bounds of the text in the cell. This is used when displaying in-place tooltips. If null is returned here, in-place tooltips will not be displayed. If the preferred argument is true then the returned bounds should be large enough to show the entire text. If preferred is false then the returned bounds should be be relative to the current bounds.
        Overrides:
        getTextBounds in class GridHeaderRenderer
        Parameters:
        value - the object being rendered.
        preferred - true if the preferred width of the text should be returned.
        Returns:
        bounds of the text.
      • getTextLayout

        private void getTextLayout​(org.eclipse.swt.graphics.GC gc,
                                   GridColumnGroup group)