Examples with FocusEvent org.eclipse.swt.events.FocusEvent used on opensource projects

Example 51 with FocusEvent

use of org.eclipse.swt.events.FocusEvent in project knime-core by knime.

the class ConfigureMetaNodePortsPage method createTopPart.

private void createTopPart(final Composite parent) {
    // top part
    Composite composite = new Composite(parent, SWT.TOP);
    GridLayout topLayout = new GridLayout();
    topLayout.numColumns = 2;
    composite.setLayout(topLayout);
    GridData gridData = new GridData(GridData.GRAB_HORIZONTAL | GridData.HORIZONTAL_ALIGN_FILL);
    composite.setLayoutData(gridData);
    // label
    Label label = new Label(composite, SWT.NONE);
    label.setText("Metanode Name:");
    gridData = new GridData(GridData.HORIZONTAL_ALIGN_BEGINNING, GridData.VERTICAL_ALIGN_CENTER, false, false);
    label.setLayoutData(gridData);
    // text field
    m_name = new Text(composite, SWT.BORDER);
    gridData = new GridData(GridData.HORIZONTAL_ALIGN_FILL | GridData.GRAB_HORIZONTAL | GridData.VERTICAL_ALIGN_CENTER);
    m_name.setLayoutData(gridData);
    m_name.addFocusListener(new FocusAdapter() {

        @Override
        public void focusLost(final FocusEvent e) {
            updateStatus();
        }

        @Override
        public void focusGained(final FocusEvent e) {
            m_name.selectAll();
        }
    });
}

Example 52 with FocusEvent

use of org.eclipse.swt.events.FocusEvent in project eclipse.platform.swt by eclipse.

the class Shape method addListeners.

void addListeners() {
    addPaintListener(e -> {
        GC gc = e.gc;
        Display display = getDisplay();
        Color c = display.getSystemColor(color);
        gc.setBackground(c);
        Rectangle rect = getClientArea();
        int length = Math.min(rect.width, rect.height);
        if (shape == CIRCLE) {
            gc.fillOval(0, 0, length, length);
        } else {
            gc.fillRectangle(0, 0, length, length);
        }
        if (isFocusControl())
            gc.drawFocus(rect.x, rect.y, rect.width, rect.height);
    });
    addFocusListener(new FocusAdapter() {

        @Override
        public void focusGained(FocusEvent e) {
            redraw();
        }

        @Override
        public void focusLost(FocusEvent e) {
            redraw();
        }
    });
    addMouseListener(MouseListener.mouseDownAdapter(e -> {
        if (getClientArea().contains(e.x, e.y)) {
            setFocus();
        }
    }));
    addKeyListener(new KeyAdapter() {

        @Override
        public void keyPressed(KeyEvent e) {
        // key listener enables traversal out
        }
    });
    addTraverseListener(e -> {
        switch(e.detail) {
            case SWT.TRAVERSE_TAB_NEXT:
            case SWT.TRAVERSE_TAB_PREVIOUS:
                e.doit = true;
                break;
        }
    });
    getAccessible().addAccessibleListener(new AccessibleAdapter() {

        @Override
        public void getName(AccessibleEvent e) {
            MessageFormat formatter = new MessageFormat("");
            // $NON_NLS$
            formatter.applyPattern(bundle.getString("name"));
            // $NON_NLS$
            String colorName = bundle.getString("color" + color);
            // $NON_NLS$
            String shapeName = bundle.getString("shape" + shape);
            // $NON_NLS$
            e.result = formatter.format(new String[] { colorName, shapeName });
        }
    });
    getAccessible().addAccessibleControlListener(new AccessibleControlAdapter() {

        @Override
        public void getRole(AccessibleControlEvent e) {
            e.detail = ACC.ROLE_GRAPHIC;
        }

        @Override
        public void getState(AccessibleControlEvent e) {
            e.detail = ACC.STATE_FOCUSABLE;
            if (isFocusControl())
                e.detail |= ACC.STATE_FOCUSED;
        }
    });
}

Example 53 with FocusEvent

use of org.eclipse.swt.events.FocusEvent in project eclipse.platform.swt by eclipse.

the class BarChart method addListeners.

void addListeners() {
    addPaintListener(e -> {
        GC gc = e.gc;
        Rectangle rect = getClientArea();
        Display display = getDisplay();
        int count = data.size();
        Point valueSize = gc.stringExtent(Integer.valueOf(valueMax).toString());
        int leftX = rect.x + 2 * GAP + valueSize.x;
        int bottomY = rect.y + rect.height - 2 * GAP - valueSize.y;
        int unitWidth = (rect.width - 4 * GAP - valueSize.x - AXIS_WIDTH) / count - GAP;
        int unitHeight = (rect.height - 3 * GAP - AXIS_WIDTH - 2 * valueSize.y) / ((valueMax - valueMin) / valueIncrement);
        // draw the title
        int titleWidth = gc.stringExtent(title).x;
        int center = (Math.max(titleWidth, count * (unitWidth + GAP) + GAP) - titleWidth) / 2;
        gc.setForeground(display.getSystemColor(SWT.COLOR_BLACK));
        gc.drawString(title, leftX + AXIS_WIDTH + center, rect.y + GAP);
        // draw the y axis and value labels
        gc.setLineWidth(AXIS_WIDTH);
        gc.drawLine(leftX, rect.y + GAP + valueSize.y, leftX, bottomY);
        for (int i1 = valueMin; i1 <= valueMax; i1 += valueIncrement) {
            int y = bottomY - i1 * unitHeight;
            gc.drawLine(leftX, y, leftX - GAP, y);
            gc.drawString(Integer.valueOf(i1).toString(), rect.x + GAP, y - valueSize.y);
        }
        // draw the x axis and item labels
        gc.drawLine(leftX, bottomY, rect.x + rect.width - GAP, bottomY);
        for (int i2 = 0; i2 < count; i2++) {
            Object[] dataItem1 = data.get(i2);
            String itemLabel = (String) dataItem1[0];
            int x1 = leftX + AXIS_WIDTH + GAP + i2 * (unitWidth + GAP);
            gc.drawString(itemLabel, x1, bottomY + GAP);
        }
        // draw the bars
        gc.setBackground(display.getSystemColor(color));
        for (int i3 = 0; i3 < count; i3++) {
            Object[] dataItem2 = data.get(i3);
            int itemValue1 = ((Integer) dataItem2[1]).intValue();
            int x2 = leftX + AXIS_WIDTH + GAP + i3 * (unitWidth + GAP);
            gc.fillRectangle(x2, bottomY - AXIS_WIDTH - itemValue1 * unitHeight, unitWidth, itemValue1 * unitHeight);
        }
        if (isFocusControl()) {
            if (selectedItem == -1) {
                // draw the focus rectangle around the whole bar chart
                gc.drawFocus(rect.x, rect.y, rect.width, rect.height);
            } else {
                // draw the focus rectangle around the selected item
                Object[] dataItem3 = data.get(selectedItem);
                int itemValue2 = ((Integer) dataItem3[1]).intValue();
                int x3 = leftX + AXIS_WIDTH + GAP + selectedItem * (unitWidth + GAP);
                gc.drawFocus(x3, bottomY - itemValue2 * unitHeight - AXIS_WIDTH, unitWidth, itemValue2 * unitHeight + AXIS_WIDTH + GAP + valueSize.y);
            }
        }
    });
    addFocusListener(new FocusAdapter() {

        @Override
        public void focusGained(FocusEvent e) {
            redraw();
        }

        @Override
        public void focusLost(FocusEvent e) {
            redraw();
        }
    });
    addMouseListener(MouseListener.mouseDownAdapter(e -> {
        if (getClientArea().contains(e.x, e.y)) {
            setFocus();
            int item = -1;
            int count = data.size();
            for (int i = 0; i < count; i++) {
                if (itemBounds(i).contains(e.x, e.y)) {
                    item = i;
                    break;
                }
            }
            if (item != selectedItem) {
                selectedItem = item;
                redraw();
                getAccessible().setFocus(item);
                getAccessible().selectionChanged();
            }
        }
    }));
    addKeyListener(new KeyAdapter() {

        @Override
        public void keyPressed(KeyEvent e) {
            boolean change = false;
            switch(e.keyCode) {
                case SWT.ARROW_DOWN:
                case SWT.ARROW_RIGHT:
                    selectedItem++;
                    if (selectedItem >= data.size())
                        selectedItem = 0;
                    change = true;
                    break;
                case SWT.ARROW_UP:
                case SWT.ARROW_LEFT:
                    selectedItem--;
                    if (selectedItem <= -1)
                        selectedItem = data.size() - 1;
                    change = true;
                    break;
                case SWT.HOME:
                    selectedItem = 0;
                    change = true;
                    break;
                case SWT.END:
                    selectedItem = data.size() - 1;
                    change = true;
                    break;
            }
            if (change) {
                redraw();
                getAccessible().setFocus(selectedItem);
                getAccessible().selectionChanged();
            }
        }
    });
    addTraverseListener(e -> {
        switch(e.detail) {
            case SWT.TRAVERSE_TAB_NEXT:
            case SWT.TRAVERSE_TAB_PREVIOUS:
                e.doit = true;
                break;
        }
    });
    getAccessible().addAccessibleListener(new AccessibleAdapter() {

        @Override
        public void getName(AccessibleEvent e) {
            // $NON_NLS$
            MessageFormat formatter = new MessageFormat("");
            // $NON_NLS$
            formatter.applyPattern(bundle.getString("name"));
            int childID = e.childID;
            if (childID == ACC.CHILDID_SELF) {
                e.result = title;
            } else {
                Object[] item = data.get(childID);
                e.result = formatter.format(item);
            }
        }

        @Override
        public void getDescription(AccessibleEvent e) {
            int childID = e.childID;
            if (childID != ACC.CHILDID_SELF) {
                Object[] item = data.get(childID);
                String value = item[1].toString();
                // $NON_NLS$
                String colorName = bundle.getString("color" + color);
                // $NON_NLS$
                MessageFormat formatter = new MessageFormat("");
                // $NON_NLS$
                formatter.applyPattern(bundle.getString("color_value"));
                e.result = formatter.format(new String[] { colorName, value });
            }
        }
    });
    getAccessible().addAccessibleControlListener(new AccessibleControlAdapter() {

        @Override
        public void getRole(AccessibleControlEvent e) {
            if (e.childID == ACC.CHILDID_SELF) {
                e.detail = ACC.ROLE_LIST;
            } else {
                e.detail = ACC.ROLE_LISTITEM;
            }
        }

        @Override
        public void getChildCount(AccessibleControlEvent e) {
            e.detail = data.size();
        }

        @Override
        public void getChildren(AccessibleControlEvent e) {
            int count = data.size();
            Object[] children = new Object[count];
            for (int i = 0; i < count; i++) {
                children[i] = Integer.valueOf(i);
            }
            e.children = children;
        }

        @Override
        public void getChildAtPoint(AccessibleControlEvent e) {
            Point testPoint = toControl(e.x, e.y);
            int childID = ACC.CHILDID_NONE;
            if (getClientArea().contains(testPoint)) {
                childID = ACC.CHILDID_SELF;
                int count = data.size();
                for (int i = 0; i < count; i++) {
                    if (itemBounds(i).contains(testPoint)) {
                        childID = i;
                        break;
                    }
                }
            }
            e.childID = childID;
        }

        @Override
        public void getLocation(AccessibleControlEvent e) {
            Rectangle location = null;
            Point pt = null;
            int childID = e.childID;
            if (childID == ACC.CHILDID_SELF) {
                location = getClientArea();
                pt = getParent().toDisplay(location.x, location.y);
            } else {
                location = itemBounds(childID);
                pt = toDisplay(location.x, location.y);
            }
            e.x = pt.x;
            e.y = pt.y;
            e.width = location.width;
            e.height = location.height;
        }

        @Override
        public void getFocus(AccessibleControlEvent e) {
            int childID = ACC.CHILDID_NONE;
            if (isFocusControl()) {
                if (selectedItem == -1) {
                    childID = ACC.CHILDID_SELF;
                } else {
                    childID = selectedItem;
                }
            }
            e.childID = childID;
        }

        @Override
        public void getSelection(AccessibleControlEvent e) {
            e.childID = (selectedItem == -1) ? ACC.CHILDID_NONE : selectedItem;
        }

        @Override
        public void getValue(AccessibleControlEvent e) {
            int childID = e.childID;
            if (childID != ACC.CHILDID_SELF) {
                Object[] dataItem = data.get(childID);
                e.result = ((Integer) dataItem[1]).toString();
            }
        }

        @Override
        public void getState(AccessibleControlEvent e) {
            int childID = e.childID;
            e.detail = ACC.STATE_FOCUSABLE;
            if (isFocusControl())
                e.detail |= ACC.STATE_FOCUSED;
            if (childID != ACC.CHILDID_SELF) {
                e.detail |= ACC.STATE_SELECTABLE;
                if (childID == selectedItem)
                    e.detail |= ACC.STATE_SELECTED;
            }
        }
    });
}

Example 54 with FocusEvent

use of org.eclipse.swt.events.FocusEvent in project eclipse.platform.swt by eclipse.

the class Test_org_eclipse_swt_widgets_Control method test_addFocusListenerLorg_eclipse_swt_events_FocusListener.

@Test
public void test_addFocusListenerLorg_eclipse_swt_events_FocusListener() {
    FocusListener listener = new FocusListener() {

        @Override
        public void focusGained(FocusEvent e) {
            eventOccurred = true;
        }

        @Override
        public void focusLost(FocusEvent e) {
            eventOccurred = true;
        }
    };
    control.addFocusListener(listener);
    eventOccurred = false;
    control.notifyListeners(SWT.FocusIn, new Event());
    assertTrue(eventOccurred);
    eventOccurred = false;
    control.notifyListeners(SWT.FocusOut, new Event());
    assertTrue(eventOccurred);
    control.removeFocusListener(listener);
}

Example 55 with FocusEvent

use of org.eclipse.swt.events.FocusEvent in project yamcs-studio by yamcs.

the class MultipleSelectionCombo method createPopup.

/**
 * Create shell that simulates drop-down
 */
private void createPopup() {
    popup = new Shell(getShell(), SWT.NO_TRIM | SWT.ON_TOP);
    popup.setLayout(new FillLayout());
    list = new org.eclipse.swt.widgets.List(popup, SWT.MULTI | SWT.V_SCROLL);
    list.setToolTipText(tool_tip);
    // Position popup under the text box
    Rectangle bounds = text.getBounds();
    bounds.y += bounds.height;
    // As high as necessary for items
    bounds.height = 5 + 2 * list.getBorderWidth() + list.getItemHeight() * items.size();
    // ..with limitation
    bounds.height = Math.min(bounds.height, display.getBounds().height / 2);
    // Map to screen coordinates
    bounds = display.map(text, null, bounds);
    popup.setBounds(bounds);
    popup.open();
    // Update text from changed list selection
    list.addSelectionListener(new SelectionListener() {

        @Override
        public void widgetSelected(SelectionEvent e) {
            updateSelectionFromList();
            updateText();
        }

        @Override
        public void widgetDefaultSelected(SelectionEvent e) {
            updateSelectionFromList();
            updateText();
            hidePopup();
        }
    });
    String[] stringItems = new String[items.size()];
    for (int i = 0; i < items.size(); i++) {
        stringItems[i] = stringRepresention(items.get(i));
    }
    list.setItems(stringItems);
    int[] intSelectionIndex = new int[selectionIndex.size()];
    for (int i = 0; i < intSelectionIndex.length; i++) {
        intSelectionIndex[i] = selectionIndex.get(i);
    }
    list.setSelection(intSelectionIndex);
    list.addKeyListener(new KeyAdapter() {

        @Override
        public void keyReleased(KeyEvent e) {
            if (e.keyCode == SWT.CR) {
                hidePopup();
            }
        }
    });
    // Hide popup when loosing focus
    list.addFocusListener(new FocusAdapter() {

        @Override
        public void focusLost(final FocusEvent e) {
            // This field is an unsigned integer and should be AND'ed with
            // 0xFFFFFFFFL so that it can be treated as a signed long.
            lost_focus = e.time & 0xFFFFFFFFL;
            hidePopup();
        }
    });
    list.setFocus();
}