Examples with AccessibleEvent org.eclipse.swt.accessibility.AccessibleEvent used on opensource projects

Example 1 with AccessibleEvent

use of org.eclipse.swt.accessibility.AccessibleEvent in project tdi-studio-se by Talend.

the class ColorCombo method initAccessible.

void initAccessible() {
    AccessibleAdapter accessibleAdapter = new AccessibleAdapter() {

        @Override
        public void getName(AccessibleEvent e) {
            String name = null;
            Label label = getAssociatedLabel();
            if (label != null) {
                name = stripMnemonic(label.getText());
            }
            e.result = name;
        }

        @Override
        public void getKeyboardShortcut(AccessibleEvent e) {
            String shortcut = null;
            Label label = getAssociatedLabel();
            if (label != null) {
                String text = label.getText();
                if (text != null) {
                    char mnemonic = _findMnemonic(text);
                    if (mnemonic != '\0') {
                        //$NON-NLS-1$
                        shortcut = "Alt+" + mnemonic;
                    }
                }
            }
            e.result = shortcut;
        }

        @Override
        public void getHelp(AccessibleEvent e) {
            e.result = getToolTipText();
        }
    };
    getAccessible().addAccessibleListener(accessibleAdapter);
    text.getAccessible().addAccessibleListener(accessibleAdapter);
    list.getAccessible().addAccessibleListener(accessibleAdapter);
    arrow.getAccessible().addAccessibleListener(new AccessibleAdapter() {

        @Override
        public void getName(AccessibleEvent e) {
            //$NON-NLS-1$ //$NON-NLS-2$
            e.result = isDropped() ? SWT.getMessage("SWT_Close") : SWT.getMessage("SWT_Open");
        }

        @Override
        public void getKeyboardShortcut(AccessibleEvent e) {
            //$NON-NLS-1$
            e.result = "Alt+Down Arrow";
        }

        @Override
        public void getHelp(AccessibleEvent e) {
            e.result = getToolTipText();
        }
    });
    getAccessible().addAccessibleTextListener(new AccessibleTextAdapter() {

        @Override
        public void getCaretOffset(AccessibleTextEvent e) {
            e.offset = text.getCaretPosition();
        }

        @Override
        public void getSelectionRange(AccessibleTextEvent e) {
            Point sel = text.getSelection();
            e.offset = sel.x;
            e.length = sel.y - sel.x;
        }
    });
    getAccessible().addAccessibleControlListener(new AccessibleControlAdapter() {

        @Override
        public void getChildAtPoint(AccessibleControlEvent e) {
            Point testPoint = toControl(e.x, e.y);
            if (getBounds().contains(testPoint)) {
                e.childID = ACC.CHILDID_SELF;
            }
        }

        @Override
        public void getLocation(AccessibleControlEvent e) {
            Rectangle location = getBounds();
            Point pt = getParent().toDisplay(location.x, location.y);
            e.x = pt.x;
            e.y = pt.y;
            e.width = location.width;
            e.height = location.height;
        }

        @Override
        public void getChildCount(AccessibleControlEvent e) {
            e.detail = 0;
        }

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

        @Override
        public void getState(AccessibleControlEvent e) {
            e.detail = ACC.STATE_NORMAL;
        }

        @Override
        public void getValue(AccessibleControlEvent e) {
            e.result = getText();
        }
    });
    text.getAccessible().addAccessibleControlListener(new AccessibleControlAdapter() {

        @Override
        public void getRole(AccessibleControlEvent e) {
            e.detail = text.getEditable() ? ACC.ROLE_TEXT : ACC.ROLE_LABEL;
        }
    });
    arrow.getAccessible().addAccessibleControlListener(new AccessibleControlAdapter() {

        @Override
        public void getDefaultAction(AccessibleControlEvent e) {
            //$NON-NLS-1$ //$NON-NLS-2$
            e.result = isDropped() ? SWT.getMessage("SWT_Close") : SWT.getMessage("SWT_Open");
        }
    });
}

Example 2 with AccessibleEvent

use of org.eclipse.swt.accessibility.AccessibleEvent in project translationstudio8 by heartsome.

the class TSWizardDialog method createPreviousAndNextButtons.

/**
	 * Creates the Previous and Next buttons for this wizard dialog. Creates
	 * standard (<code>SWT.PUSH</code>) buttons and registers for their
	 * selection events. Note that the number of columns in the button bar
	 * composite is incremented. These buttons are created specially to prevent
	 * any space between them.
	 * 
	 * @param parent
	 *            the parent button bar
	 * @return a composite containing the new buttons
	 */
private Composite createPreviousAndNextButtons(Composite parent) {
    // increment the number of columns in the button bar
    ((GridLayout) parent.getLayout()).numColumns++;
    Composite composite = new Composite(parent, SWT.NONE);
    // create a layout with spacing and margins appropriate for the font
    // size.
    GridLayout layout = new GridLayout();
    // will be incremented by createButton
    layout.numColumns = 0;
    layout.marginWidth = 0;
    layout.marginHeight = 0;
    layout.horizontalSpacing = 0;
    layout.verticalSpacing = 0;
    composite.setLayout(layout);
    GridData data = new GridData(GridData.HORIZONTAL_ALIGN_CENTER | GridData.VERTICAL_ALIGN_CENTER);
    composite.setLayoutData(data);
    composite.setFont(parent.getFont());
    backButton = createButton(composite, IDialogConstants.BACK_ID, IDialogConstants.BACK_LABEL, false);
    nextButton = createButton(composite, IDialogConstants.NEXT_ID, IDialogConstants.NEXT_LABEL, false);
    // make sure screen readers skip visual '<', '>' chars on buttons:
    final String backReaderText = IDialogConstants.BACK_LABEL.replace('<', ' ');
    backButton.getAccessible().addAccessibleListener(new AccessibleAdapter() {

        public void getName(AccessibleEvent e) {
            e.result = backReaderText;
        }
    });
    final String nextReaderText = IDialogConstants.NEXT_LABEL.replace('>', ' ');
    nextButton.getAccessible().addAccessibleListener(new AccessibleAdapter() {

        public void getName(AccessibleEvent e) {
            e.result = nextReaderText;
        }
    });
    return composite;
}

Example 3 with AccessibleEvent

use of org.eclipse.swt.accessibility.AccessibleEvent 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 4 with AccessibleEvent

use of org.eclipse.swt.accessibility.AccessibleEvent in project eclipse.platform.swt by eclipse.

the class AccessibleValueExample method main.

public static void main(String[] args) {
    Display display = new Display();
    Shell shell = new Shell(display);
    shell.setLayout(new FillLayout());
    shell.setText("Accessible Value Example");
    final Canvas canvas = new Canvas(shell, SWT.DOUBLE_BUFFERED);
    canvas.addPaintListener(e -> {
        Rectangle rect = canvas.getClientArea();
        String val = String.valueOf(value);
        Point size = e.gc.stringExtent(val);
        e.gc.setBackground(e.display.getSystemColor(SWT.COLOR_LIST_SELECTION));
        e.gc.fillRectangle(0, 0, rect.width * value / (max - min), rect.height);
        e.gc.drawString(val, rect.x + (rect.width - size.x) / 2, rect.y + (rect.height - size.y) / 2, true);
    });
    Accessible accessible = canvas.getAccessible();
    accessible.addAccessibleListener(new AccessibleAdapter() {

        @Override
        public void getName(AccessibleEvent e) {
            e.result = "The value of this canvas is " + value;
        }
    });
    accessible.addAccessibleControlListener(new AccessibleControlAdapter() {

        @Override
        public void getRole(AccessibleControlEvent e) {
            e.detail = ACC.ROLE_PROGRESSBAR;
        }
    });
    accessible.addAccessibleValueListener(new AccessibleValueAdapter() {

        @Override
        public void setCurrentValue(AccessibleValueEvent e) {
            value = e.value.intValue();
            canvas.redraw();
        }

        @Override
        public void getMinimumValue(AccessibleValueEvent e) {
            e.value = Integer.valueOf(min);
        }

        @Override
        public void getMaximumValue(AccessibleValueEvent e) {
            e.value = Integer.valueOf(max);
        }

        @Override
        public void getCurrentValue(AccessibleValueEvent e) {
            e.value = Integer.valueOf(value);
        }
    });
    shell.pack();
    shell.open();
    while (!shell.isDisposed()) {
        if (!display.readAndDispatch())
            display.sleep();
    }
    display.dispose();
}

Example 5 with AccessibleEvent

use of org.eclipse.swt.accessibility.AccessibleEvent 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;
            }
        }
    });
}