Examples of org.eclipse.nebula.widgets.nattable.layer.ILayer

Package org.eclipse.nebula.widgets.nattable.layer

Examples of org.eclipse.nebula.widgets.nattable.layer.ILayer

org.eclipse.nebula.widgets.nattable.layer.ILayer
A Layer is a rectangular region of grid cells. A layer has methods to access its columns, rows, width and height. A layer can be stacked on top of another layer in order to expose a transformed view of its underlying layer's grid cell structure.

Columns and rows in a layer are referenced either by position or index. The position of a column/row in a layer corresponds to the physical location of the column/row in the layer. The index of a column/row in a layer corresponds to the location of the column/row in the lowest level layer in the layer stack. These concepts are illustrated by the following example:
```
 Hide Layer C 0 1 2 3 4 <- column positions 1 0 3 4 5 <- column indexes Reorder Layer B 0 1 2 3 4 5 <- column positions 2 1 0 3 4 5 <- column indexes Data Layer A 0 1 2 3 4 5 <- column positions 0 1 2 3 4 5 <- column indexes 
```
In the above example, Hide Layer C is stacked on top of Reorder Layer B, which is in turn stacked on top of Data Layer A. The positions in Data Layer A are the same as its indexes, because it is the lowest level layer in the stack. Reorder Layer B reorders column 0 of its underlying layer (Data Layer A) after column 2 of its underlying layer. Hide Layer C hides the first column of its underlying layer (Reorder Layer B).

Layers can also be laterally composed into larger layers. For instance, the standard grid layer is composed of a body layer, column header layer, row header layer, and corner layer:

corner column header

row header body

@see CompositeLayer

corner	column header
row header	body

                Integer.valueOf(aggregateWidth));
        return aggregateWidth;
    }


    private void populateIndexOrder() {
        ILayer underlyingLayer = getUnderlyingLayer();
        for (int columnPosition = 0; columnPosition < underlyingLayer
                .getColumnCount(); columnPosition++) {
            this.columnIndexOrder.add(Integer.valueOf(underlyingLayer
                    .getColumnIndexByPosition(columnPosition)));
        }
    }

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        this.columnFirst = columnFirst;
    }


    public PositionCoordinate executeSearch(Object valueToMatch)
            throws PatternSyntaxException {
        ILayer contextLayer = getContextLayer();
        if (!(contextLayer instanceof SelectionLayer)) {
            throw new RuntimeException(
                    "For the GridSearchStrategy to work it needs the selectionLayer to be passed as the contextLayer."); //$NON-NLS-1$
        }
        SelectionLayer selectionLayer = (SelectionLayer) contextLayer;

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        findCombo.removeModifyListener(findComboModifyListener);
        updateCombo(findCombo, findHistory);
        findCombo.addModifyListener(findComboModifyListener);


        // search SelectionLayer in layer stack
        ILayer result = findSelectionLayer(natTable.getLayer());
        if (result != null && result instanceof SelectionLayer) {
            selectionLayer = (SelectionLayer) result;
        }


        // Pick the user's selection, if possible

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            // most region (e.g. the body
            // in a grid, the search is performed backwards
            CompositeLayer composite = (CompositeLayer) layer;
            for (int x = composite.getLayoutXCount(); x >= 0; x--) {
                for (int y = composite.getLayoutYCount(); y >= 0; y--) {
                    ILayer childStack = composite
                            .getChildLayerByLayoutCoordinate(x, y);
                    ILayer result = findSelectionLayer(childStack);
                    if (result instanceof SelectionLayer) {
                        return result;
                    }
                }
            }

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    }


    public PositionCoordinate executeSearch(Object valueToMatch)
            throws PatternSyntaxException {


        ILayer contextLayer = getContextLayer();
        if (!(contextLayer instanceof SelectionLayer)) {
            throw new RuntimeException(
                    "For the GridSearchStrategy to work it needs the selectionLayer to be passed as the contextLayer."); //$NON-NLS-1$
        }
        SelectionLayer selectionLayer = (SelectionLayer) contextLayer;

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        // build the column header layer
        IDataProvider columnHeaderDataProvider = new DefaultColumnHeaderDataProvider(
                propertyNames, propertyToLabelMap);
        DataLayer columnHeaderDataLayer = new DefaultColumnHeaderDataLayer(
                columnHeaderDataProvider);
        ILayer columnHeaderLayer = new ColumnHeaderLayer(columnHeaderDataLayer,
                viewportLayer, selectionLayer);


        ConfigRegistry configRegistry = new ConfigRegistry();
        SortHeaderLayer<PersonWithAddress> sortHeaderLayer = new SortHeaderLayer<PersonWithAddress>(
                columnHeaderLayer, new PersonWithAddressSortModel(data));


        // build the row header layer
        IDataProvider rowHeaderDataProvider = new DefaultRowHeaderDataProvider(
                bodyDataProvider);
        DataLayer rowHeaderDataLayer = new DefaultRowHeaderDataLayer(
                rowHeaderDataProvider);
        ILayer rowHeaderLayer = new RowHeaderLayer(rowHeaderDataLayer,
                viewportLayer, selectionLayer);


        // build the corner layer
        IDataProvider cornerDataProvider = new DefaultCornerDataProvider(
                columnHeaderDataProvider, rowHeaderDataProvider);
        DataLayer cornerDataLayer = new DataLayer(cornerDataProvider);
        ILayer cornerLayer = new CornerLayer(cornerDataLayer, rowHeaderLayer,
                sortHeaderLayer);


        // build the grid layer
        GridLayer gridLayer = new GridLayer(viewportLayer, sortHeaderLayer,
                rowHeaderLayer, cornerLayer);

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        int fontHeight = gc.getFontMetrics().getHeight();
        int contentWidth = (fontHeight * numberOfNewLines) + (spacing * 2);
        int contentToCellDiff = (cell.getBounds().width - rectangle.width);


        if ((contentWidth > rectangle.width) && calculateByTextHeight) {
            ILayer layer = cell.getLayer();
            layer.doCommand(new ColumnResizeCommand(layer, cell
                    .getColumnPosition(), contentWidth + contentToCellDiff));
        }


        if (text != null && text.length() > 0) {
            if (numberOfNewLines == 1) {

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    @Override
    protected void setNewMinLength(ILayerCell cell, int contentHeight) {
        int cellLength = cell.getBounds().height;
        if (cellLength < contentHeight) {


            ILayer layer = cell.getLayer();
            layer.doCommand(new RowResizeCommand(layer, cell.getRowPosition(),
                    contentHeight));
        }
    }

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        // build the column header layer
        IDataProvider columnHeaderDataProvider = new DefaultColumnHeaderDataProvider(
                propertyNames, propertyToLabelMap);
        DataLayer columnHeaderDataLayer = new DefaultColumnHeaderDataLayer(
                columnHeaderDataProvider);
        ILayer columnHeaderLayer = new ColumnHeaderLayer(columnHeaderDataLayer,
                viewportLayer, selectionLayer);


        // build the row header layer
        IDataProvider rowHeaderDataProvider = new DefaultRowHeaderDataProvider(
                bodyDataProvider);
        DataLayer rowHeaderDataLayer = new DefaultRowHeaderDataLayer(
                rowHeaderDataProvider);
        ILayer rowHeaderLayer = new RowHeaderLayer(rowHeaderDataLayer,
                viewportLayer, selectionLayer);


        // build the corner layer
        IDataProvider cornerDataProvider = new DefaultCornerDataProvider(
                columnHeaderDataProvider, rowHeaderDataProvider);
        DataLayer cornerDataLayer = new DataLayer(cornerDataProvider);
        ILayer cornerLayer = new CornerLayer(cornerDataLayer, rowHeaderLayer,
                columnHeaderLayer);


        // build the grid layer
        GridLayer gridLayer = new GridLayer(viewportLayer, columnHeaderLayer,
                rowHeaderLayer, cornerLayer);

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        // build the column header layer
        IDataProvider columnHeaderDataProvider = new DefaultColumnHeaderDataProvider(
                propertyNames, propertyToLabelMap);
        DataLayer columnHeaderDataLayer = new DefaultColumnHeaderDataLayer(
                columnHeaderDataProvider);
        ILayer columnHeaderLayer = new ColumnHeaderLayer(columnHeaderDataLayer,
                bodyLayerStack, bodyLayerStack.getSelectionLayer());


        // build the row header layer
        IDataProvider rowHeaderDataProvider = new DefaultRowHeaderDataProvider(
                bodyLayerStack.getBodyDataProvider());
        DataLayer rowHeaderDataLayer = new DefaultRowHeaderDataLayer(
                rowHeaderDataProvider);
        ILayer rowHeaderLayer = new RowHeaderLayer(rowHeaderDataLayer,
                bodyLayerStack, bodyLayerStack.getSelectionLayer());


        // build the corner layer
        IDataProvider cornerDataProvider = new DefaultCornerDataProvider(
                columnHeaderDataProvider, rowHeaderDataProvider);
        DataLayer cornerDataLayer = new DataLayer(cornerDataProvider);
        ILayer cornerLayer = new CornerLayer(cornerDataLayer, rowHeaderLayer,
                columnHeaderLayer);


        // build the grid layer
        GridLayer gridLayer = new GridLayer(bodyLayerStack, columnHeaderLayer,
                rowHeaderLayer, cornerLayer);

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org.eclipse.nebula.widgets.nattable.command.LayerCommandUtil

org.eclipse.nebula.widgets.nattable.coordinate.PositionCoordinateTest

org.eclipse.nebula.widgets.nattable.edit.EditController

org.eclipse.nebula.widgets.nattable.examples._300_Data._302_CustomColumnPropertyAccessorExample

org.eclipse.nebula.widgets.nattable.examples._300_Data._303_CalculatedDataExample$CalculatingGridLayer

org.eclipse.nebula.widgets.nattable.examples._300_Data._304_DynamicColumnExample

org.eclipse.nebula.widgets.nattable.examples._500_Layers._501_Data._5013_PercentageSizingGridExample$SimpleGridLayer

org.eclipse.nebula.widgets.nattable.examples._500_Layers._503_Compositions._5031_VerticalCompositionExample

org.eclipse.nebula.widgets.nattable.examples._500_Layers._503_Compositions._5032_HorizontalCompositionExample

org.eclipse.nebula.widgets.nattable.examples._500_Layers._503_Compositions._5033_GridLayerExample

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