Examples with TreeColumn org.eclipse.swt.widgets.TreeColumn used on opensource projects

Example 31 with TreeColumn

use of org.eclipse.swt.widgets.TreeColumn in project eclipse.platform.swt by eclipse.

the class TreeTab method setColumnsMoveable.

/**
 * Sets the moveable columns state of the "Example" widgets.
 */
void setColumnsMoveable() {
    boolean selection = moveableColumns.getSelection();
    TreeColumn[] columns1 = tree1.getColumns();
    for (TreeColumn column : columns1) {
        column.setMoveable(selection);
    }
    TreeColumn[] columns2 = tree2.getColumns();
    for (TreeColumn column : columns2) {
        column.setMoveable(selection);
    }
}

Example 32 with TreeColumn

use of org.eclipse.swt.widgets.TreeColumn in project eclipse.platform.swt by eclipse.

the class TreeTab method createExampleWidgets.

/**
 * Creates the "Example" widgets.
 */
@Override
void createExampleWidgets() {
    /* Compute the widget style */
    int style = getDefaultStyle();
    if (singleButton.getSelection())
        style |= SWT.SINGLE;
    if (multiButton.getSelection())
        style |= SWT.MULTI;
    if (horizontalButton.getSelection())
        style |= SWT.H_SCROLL;
    if (verticalButton.getSelection())
        style |= SWT.V_SCROLL;
    if (noScrollButton.getSelection())
        style |= SWT.NO_SCROLL;
    if (checkButton.getSelection())
        style |= SWT.CHECK;
    if (fullSelectionButton.getSelection())
        style |= SWT.FULL_SELECTION;
    if (borderButton.getSelection())
        style |= SWT.BORDER;
    /* Create the text tree */
    tree1 = new Tree(treeGroup, style);
    boolean multiColumn = multipleColumns.getSelection();
    if (multiColumn) {
        for (String columnTitle : columnTitles) {
            TreeColumn treeColumn = new TreeColumn(tree1, SWT.NONE);
            treeColumn.setText(columnTitle);
            treeColumn.setToolTipText(ControlExample.getResourceString("Tooltip", columnTitle));
        }
        tree1.setSortColumn(tree1.getColumn(0));
    }
    for (int i = 0; i < 4; i++) {
        TreeItem item = new TreeItem(tree1, SWT.NONE);
        setItemText(item, i, ControlExample.getResourceString("Node_" + (i + 1)));
        if (i < 3) {
            TreeItem subitem = new TreeItem(item, SWT.NONE);
            setItemText(subitem, i, ControlExample.getResourceString("Node_" + (i + 1) + "_1"));
        }
    }
    TreeItem[] treeRoots = tree1.getItems();
    TreeItem item = new TreeItem(treeRoots[1], SWT.NONE);
    setItemText(item, 1, ControlExample.getResourceString("Node_2_2"));
    item = new TreeItem(item, SWT.NONE);
    setItemText(item, 1, ControlExample.getResourceString("Node_2_2_1"));
    textNode1 = treeRoots[0];
    packColumns(tree1);
    try {
        TreeColumn column = tree1.getColumn(0);
        resizableColumns.setSelection(column.getResizable());
    } catch (IllegalArgumentException ex) {
    }
    /* Create the image tree */
    tree2 = new Tree(imageTreeGroup, style);
    Image image = instance.images[ControlExample.ciClosedFolder];
    if (multiColumn) {
        for (int i = 0; i < columnTitles.length; i++) {
            TreeColumn treeColumn = new TreeColumn(tree2, SWT.NONE);
            treeColumn.setText(columnTitles[i]);
            treeColumn.setToolTipText(ControlExample.getResourceString("Tooltip", columnTitles[i]));
            if (headerImagesButton.getSelection())
                treeColumn.setImage(instance.images[i % 3]);
        }
    }
    for (int i = 0; i < 4; i++) {
        item = new TreeItem(tree2, SWT.NONE);
        setItemText(item, i, ControlExample.getResourceString("Node_" + (i + 1)));
        if (multiColumn && subImagesButton.getSelection()) {
            for (int j = 0; j < columnTitles.length; j++) {
                item.setImage(j, image);
            }
        } else {
            item.setImage(image);
        }
        if (i < 3) {
            TreeItem subitem = new TreeItem(item, SWT.NONE);
            setItemText(subitem, i, ControlExample.getResourceString("Node_" + (i + 1) + "_1"));
            if (multiColumn && subImagesButton.getSelection()) {
                for (int j = 0; j < columnTitles.length; j++) {
                    subitem.setImage(j, image);
                }
            } else {
                subitem.setImage(image);
            }
        }
    }
    treeRoots = tree2.getItems();
    item = new TreeItem(treeRoots[1], SWT.NONE);
    setItemText(item, 1, ControlExample.getResourceString("Node_2_2"));
    if (multiColumn && subImagesButton.getSelection()) {
        for (int j = 0; j < columnTitles.length; j++) {
            item.setImage(j, image);
        }
    } else {
        item.setImage(image);
    }
    item = new TreeItem(item, SWT.NONE);
    setItemText(item, 1, ControlExample.getResourceString("Node_2_2_1"));
    if (multiColumn && subImagesButton.getSelection()) {
        for (int j = 0; j < columnTitles.length; j++) {
            item.setImage(j, image);
        }
    } else {
        item.setImage(image);
    }
    imageNode1 = treeRoots[0];
    packColumns(tree2);
}

Example 33 with TreeColumn

use of org.eclipse.swt.widgets.TreeColumn in project eclipse.platform.swt by eclipse.

the class TreeTab method initializeSortState.

/**
 * Sets the initial sort indicator state and adds a listener
 * to cycle through sort states and columns.
 */
void initializeSortState(final Tree tree) {
    /* Reset to known state: 'down' on column 0. */
    tree.setSortDirection(SWT.DOWN);
    TreeColumn[] columns = tree.getColumns();
    for (int i = 0; i < columns.length; i++) {
        TreeColumn column = columns[i];
        if (i == 0)
            tree.setSortColumn(column);
        SelectionListener listener = widgetSelectedAdapter(e -> {
            int sortDirection = SWT.DOWN;
            if (e.widget == tree.getSortColumn()) {
                /* If the sort column hasn't changed, cycle down -> up -> none. */
                switch(tree.getSortDirection()) {
                    case SWT.DOWN:
                        sortDirection = SWT.UP;
                        break;
                    case SWT.UP:
                        sortDirection = SWT.NONE;
                        break;
                }
            } else {
                tree.setSortColumn((TreeColumn) e.widget);
            }
            tree.setSortDirection(sortDirection);
        });
        column.addSelectionListener(listener);
        // $NON-NLS-1$
        column.setData("SortListener", listener);
    }
}

Example 34 with TreeColumn

use of org.eclipse.swt.widgets.TreeColumn in project eclipse.platform.swt by eclipse.

the class Bug529126_TreeMouseDown method main.

// Static =================================================================
public static void main(String[] args) {
    final Display display = new Display();
    final Shell shell = new Shell(display);
    shell.setText("Custom gradient selection for Tree");
    shell.setLayout(new FillLayout());
    final Tree tree = new Tree(shell, SWT.MULTI | SWT.FULL_SELECTION | SWT.VIRTUAL);
    tree.setHeaderVisible(true);
    tree.setLinesVisible(true);
    final int columnCount = 4;
    for (int i = 0; i < columnCount; i++) {
        final TreeColumn column = new TreeColumn(tree, SWT.NONE);
        column.setText("Column " + i);
    }
    final int itemCount = 5;
    for (int i = 0; i < itemCount; i++) {
        final TreeItem item1 = new TreeItem(tree, SWT.NONE);
        for (int j = 0; j < i; j++) {
            final TreeItem item2 = new TreeItem(item1, SWT.NONE);
            for (int k = 0; k < j; k++) {
                new TreeItem(item2, SWT.NONE);
            }
        }
    }
    tree.addListener(SWT.SetData, event -> {
        final TreeItem item = (TreeItem) event.item;
        final TreeItem parentItem = item.getParentItem();
        final String text;
        if (parentItem != null) {
            final String parentText = (String) parentItem.getData();
            text = parentText + event.index + "/";
        } else {
            text = "/";
        }
        item.setData(text);
    });
    tree.addListener(SWT.PaintItem, event -> {
        final TreeItem item = (TreeItem) event.item;
        final String text = (String) item.getData();
        event.gc.drawText(text + " [" + event.index + "]", event.x, event.y, true);
    });
    /*
		 * NOTE: MeasureItem, PaintItem and EraseItem are called repeatedly.
		 * Therefore, it is critical for performance that these methods be
		 * as efficient as possible.
		 */
    tree.addListener(SWT.EraseItem, event -> {
        event.detail &= ~SWT.HOT;
        if ((event.detail & SWT.SELECTED) != 0) {
            final GC gc = event.gc;
            final Rectangle area = tree.getClientArea();
            /*
				 * If you wish to paint the selection beyond the end of
				 * last column, you must change the clipping region.
				 */
            final int columnCount1 = tree.getColumnCount();
            if (event.index == columnCount1 - 1 || columnCount1 == 0) {
                final int width = area.x + area.width - event.x;
                if (width > 0) {
                    final Region region = new Region();
                    gc.getClipping(region);
                    region.add(event.x, event.y, width, event.height);
                    gc.setClipping(region);
                    region.dispose();
                }
            }
            gc.setAdvanced(true);
            if (gc.getAdvanced()) {
                gc.setAlpha(127);
            }
            final Rectangle rect = event.getBounds();
            final Color foreground = gc.getForeground();
            final Color background = gc.getBackground();
            gc.setForeground(display.getSystemColor(SWT.COLOR_RED));
            gc.setBackground(display.getSystemColor(SWT.COLOR_LIST_BACKGROUND));
            gc.fillGradientRectangle(0, rect.y, 500, rect.height, false);
            // restore colors for subsequent drawing
            gc.setForeground(foreground);
            gc.setBackground(background);
            event.detail &= ~SWT.SELECTED;
        }
    });
    tree.getColumn(0).setWidth(200);
    for (int i = 1; i < columnCount; i++) {
        tree.getColumn(i).pack();
    }
    tree.setSelection(tree.getItem(0));
    tree.addListener(SWT.MouseDown, event -> System.out.println("event = " + event));
    shell.setSize(500, 500);
    shell.open();
    while (!shell.isDisposed()) {
        if (!display.readAndDispatch()) {
            display.sleep();
        }
    }
    display.dispose();
}

Example 35 with TreeColumn

use of org.eclipse.swt.widgets.TreeColumn in project eclipse.platform.swt by eclipse.

the class MJ_Tree method bug73812_treeColumn_getWidth_0.

@Test
public void bug73812_treeColumn_getWidth_0() {
    Shell shell = mkShell("Verify that all columns are of same width. (100).");
    shell.setSize(SWIDTH, SHEIGHT);
    shell.setLayout(new FillLayout());
    final Tree tt = new Tree(shell, SWT.FULL_SELECTION | SWT.MULTI | SWT.VIRTUAL);
    tt.setLinesVisible(true);
    tt.setHeaderVisible(true);
    for (int i = 0; i < 10; i++) {
        TreeColumn tc = new TreeColumn(tt, SWT.NONE);
        tc.setWidth(100);
        System.out.println(tc.getWidth());
        tc.setWidth(tc.getWidth());
        tc.setText("Column " + i);
    }
    for (int i = 0; i < 100; i++) {
        new TreeItem(tt, SWT.NONE);
    }
    shell.open();
    mainLoop(shell);
}