diff options
Diffstat (limited to 'propertysheet/src/org/eclipse/wb/core/controls/CComboBox.java')
| -rw-r--r-- | propertysheet/src/org/eclipse/wb/core/controls/CComboBox.java | 664 |
1 files changed, 0 insertions, 664 deletions
diff --git a/propertysheet/src/org/eclipse/wb/core/controls/CComboBox.java b/propertysheet/src/org/eclipse/wb/core/controls/CComboBox.java deleted file mode 100644 index 9f0c8f9..0000000 --- a/propertysheet/src/org/eclipse/wb/core/controls/CComboBox.java +++ /dev/null @@ -1,664 +0,0 @@ -/******************************************************************************* - * Copyright (c) 2011 Google, Inc. - * All rights reserved. This program and the accompanying materials - * are made available under the terms of the Eclipse Public License v1.0 - * which accompanies this distribution, and is available at - * http://www.eclipse.org/legal/epl-v10.html - * - * Contributors: - * Google, Inc. - initial API and implementation - *******************************************************************************/ -package org.eclipse.wb.core.controls; - -import com.google.common.collect.Lists; - -import org.eclipse.jface.viewers.IBaseLabelProvider; -import org.eclipse.jface.viewers.IContentProvider; -import org.eclipse.jface.viewers.IStructuredContentProvider; -import org.eclipse.jface.viewers.LabelProvider; -import org.eclipse.jface.viewers.TableViewer; -import org.eclipse.jface.viewers.TableViewerColumn; -import org.eclipse.jface.viewers.Viewer; -import org.eclipse.jface.viewers.ViewerFilter; -import org.eclipse.swt.SWT; -import org.eclipse.swt.events.ControlAdapter; -import org.eclipse.swt.events.ControlEvent; -import org.eclipse.swt.events.DisposeEvent; -import org.eclipse.swt.events.DisposeListener; -import org.eclipse.swt.events.KeyAdapter; -import org.eclipse.swt.events.KeyEvent; -import org.eclipse.swt.events.ModifyEvent; -import org.eclipse.swt.events.ModifyListener; -import org.eclipse.swt.events.PaintEvent; -import org.eclipse.swt.events.PaintListener; -import org.eclipse.swt.events.SelectionAdapter; -import org.eclipse.swt.events.SelectionEvent; -import org.eclipse.swt.events.SelectionListener; -import org.eclipse.swt.events.TypedEvent; -import org.eclipse.swt.graphics.Image; -import org.eclipse.swt.graphics.Point; -import org.eclipse.swt.graphics.Rectangle; -import org.eclipse.swt.layout.FillLayout; -import org.eclipse.swt.widgets.Button; -import org.eclipse.swt.widgets.Canvas; -import org.eclipse.swt.widgets.Composite; -import org.eclipse.swt.widgets.Display; -import org.eclipse.swt.widgets.Event; -import org.eclipse.swt.widgets.Listener; -import org.eclipse.swt.widgets.Shell; -import org.eclipse.swt.widgets.Table; -import org.eclipse.swt.widgets.TableColumn; -import org.eclipse.swt.widgets.TableItem; -import org.eclipse.swt.widgets.Text; -import org.eclipse.swt.widgets.TypedListener; -import org.eclipse.wb.internal.core.model.property.editor.TextControlActionsManager; -import org.eclipse.wb.internal.core.model.property.table.PropertyTable; -import org.eclipse.wb.internal.core.utils.check.Assert; - -import java.util.ArrayList; - -/** - * Extended ComboBox control for {@link PropertyTable} and combo property editors. - * - * @author sablin_aa - * @coverage core.control - */ -public class CComboBox extends Composite { - private Text m_text; - private Button m_button; - private Canvas m_canvas; - private Shell m_popup; - private TableViewer m_table; - private boolean m_fullDropdownTableWidth = false; - private boolean m_wasFocused; - - //////////////////////////////////////////////////////////////////////////// - // - // Constructor - // - //////////////////////////////////////////////////////////////////////////// - public CComboBox(Composite parent, int style) { - super(parent, style); - createContents(this); - m_wasFocused = isComboFocused(); - // add display hook - final Listener displayFocusInHook = new Listener() { - @Override - public void handleEvent(Event event) { - boolean focused = isComboFocused(); - if (m_wasFocused && !focused) { - // close DropDown on focus out ComboBox - comboDropDown(false); - } - if (event.widget != CComboBox.this) { - // forward to ComboBox listeners - if (!m_wasFocused && focused) { - event.widget = CComboBox.this; - notifyListeners(SWT.FocusIn, event); - } - if (m_wasFocused && !focused) { - event.widget = CComboBox.this; - notifyListeners(SWT.FocusOut, event); - } - } - m_wasFocused = focused; - } - }; - final Listener displayFocusOutHook = new Listener() { - @Override - public void handleEvent(Event event) { - m_wasFocused = isComboFocused(); - } - }; - { - Display display = getDisplay(); - display.addFilter(SWT.FocusIn, displayFocusInHook); - display.addFilter(SWT.FocusOut, displayFocusOutHook); - } - // combo listeners - addControlListener(new ControlAdapter() { - @Override - public void controlResized(ControlEvent e) { - resizeInner(); - } - }); - addDisposeListener(new DisposeListener() { - @Override - public void widgetDisposed(DisposeEvent e) { - { - // remove Display hooks - Display display = getDisplay(); - display.removeFilter(SWT.FocusIn, displayFocusInHook); - display.removeFilter(SWT.FocusOut, displayFocusOutHook); - } - disposeInner(); - } - }); - } - - //////////////////////////////////////////////////////////////////////////// - // - // Contents - // - //////////////////////////////////////////////////////////////////////////// - protected void createContents(Composite parent) { - createText(parent); - createButton(parent); - createImage(parent); - createPopup(parent); - } - - /** - * Create Text widget. - */ - protected void createText(Composite parent) { - m_text = new Text(parent, SWT.NONE); - new TextControlActionsManager(m_text); - // key press processing - m_text.addKeyListener(new KeyAdapter() { - @Override - public void keyPressed(KeyEvent e) { - switch (e.keyCode) { - case SWT.ESC : - if (isDroppedDown()) { - // close dropdown - comboDropDown(false); - e.doit = false; - } else { - // forward to ComboBox listeners - notifyListeners(SWT.KeyDown, convert2event(e)); - } - break; - case SWT.ARROW_UP : - if (isDroppedDown()) { - // prev item in dropdown list - Table table = m_table.getTable(); - int index = table.getSelectionIndex() - 1; - table.setSelection(index < 0 ? table.getItemCount() - 1 : index); - e.doit = false; - } else { - // forward to ComboBox listeners - notifyListeners(SWT.KeyDown, convert2event(e)); - } - break; - case SWT.ARROW_DOWN : - if (isDroppedDown()) { - // next item in dropdown list - Table table = m_table.getTable(); - int index = table.getSelectionIndex() + 1; - table.setSelection(index == table.getItemCount() ? 0 : index); - e.doit = false; - } else if ((e.stateMask & SWT.ALT) != 0) { - // force drop down combo - comboDropDown(true); - e.doit = false; - // return focus to text - setFocus2Text(false); - } else { - // forward to ComboBox listeners - notifyListeners(SWT.KeyDown, convert2event(e)); - } - break; - case '\r' : - Table table = m_table.getTable(); - if (isDroppedDown() && table.getSelectionIndex() != -1) { - // forward to Table listeners - table.notifyListeners(SWT.Selection, convert2event(e)); - } else { - m_text.selectAll(); - setSelectionText(getEditText()); - // forward to ComboBox listeners - notifyListeners(SWT.Selection, convert2event(e)); - } - break; - } - } - }); - // modifications processing - m_text.addModifyListener(new ModifyListener() { - @Override - public void modifyText(ModifyEvent e) { - if (isDroppedDown()) { - m_table.refresh(); - } else { - // force drop down combo - if (m_text.isFocusControl()) { - comboDropDown(true); - // return focus to text - setFocus2Text(false); - } - } - } - }); - } - - /** - * Create arrow button. - */ - protected void createButton(Composite parent) { - m_button = new Button(parent, SWT.ARROW | SWT.DOWN); - m_button.addSelectionListener(new SelectionAdapter() { - @Override - public void widgetSelected(SelectionEvent e) { - comboDropDown(!isDroppedDown()); - // return focus to text - setFocus2Text(true); - } - }); - } - - /** - * Create image canvas. - */ - protected void createImage(Composite parent) { - m_canvas = new Canvas(parent, SWT.BORDER); - m_canvas.addPaintListener(new PaintListener() { - @Override - public void paintControl(PaintEvent e) { - Image selectionImage = getSelectionImage(); - if (selectionImage != null) { - e.gc.drawImage(selectionImage, 0, 0); - } else { - e.gc.fillRectangle(m_canvas.getClientArea()); - } - } - }); - } - - /** - * Create popup shell with table. - */ - protected void createPopup(Composite parent) { - m_popup = new Shell(getShell(), SWT.BORDER); - m_popup.setLayout(new FillLayout()); - createTable(m_popup); - } - - /** - * Create table. - */ - protected void createTable(Composite parent) { - m_table = new TableViewer(parent, SWT.FULL_SELECTION); - new TableViewerColumn(m_table, SWT.LEFT); - m_table.getTable().addSelectionListener(new SelectionAdapter() { - @Override - public void widgetSelected(SelectionEvent e) { - int selectionIndex = m_table.getTable().getSelectionIndex(); - setSelectionIndex(selectionIndex); - comboDropDown(false); - // forward to ComboBox listeners - notifyListeners(SWT.Selection, convert2event(e)); - } - }); - m_table.setContentProvider(getContentProvider()); - m_table.setLabelProvider(getLabelProvider()); - m_table.addFilter(getFilterProvider()); - } - - /** - * Placement inner widgets. - */ - protected void resizeInner() { - Rectangle clientArea = getClientArea(); - int rightOccupied = 0; - int leftOccupied = 0; - { - // button - m_button.setBounds( - clientArea.width - clientArea.height, - 0, - clientArea.height, - clientArea.height); - rightOccupied = clientArea.height; - } - { - Image selectionImage = getSelectionImage(); - if (selectionImage != null) { - // image - m_canvas.setSize(clientArea.height, clientArea.height); - leftOccupied = clientArea.height; - } else { - m_canvas.setSize(1, clientArea.height); - leftOccupied = 1; - } - } - { - // text - m_text.setBounds( - leftOccupied, - 0, - clientArea.width - rightOccupied - leftOccupied, - clientArea.height); - } - } - - /** - * Dispose inner widgets. - */ - protected void disposeInner() { - if (!m_popup.isDisposed()) { - m_popup.dispose(); - } - } - - //////////////////////////////////////////////////////////////////////////// - // - // Providers - // - //////////////////////////////////////////////////////////////////////////// - protected IContentProvider getContentProvider() { - return new IStructuredContentProvider() { - @Override - public Object[] getElements(Object inputElement) { - return m_items.toArray(new ComboBoxItem[m_items.size()]); - } - - @Override - public void dispose() { - } - - @Override - public void inputChanged(Viewer viewer, Object oldInput, Object newInput) { - } - }; - } - - protected IBaseLabelProvider getLabelProvider() { - return new LabelProvider() { - @Override - public Image getImage(Object element) { - ComboBoxItem item = (ComboBoxItem) element; - return item.m_image; - } - - @Override - public String getText(Object element) { - ComboBoxItem item = (ComboBoxItem) element; - return item.m_label; - } - }; - } - - protected ViewerFilter getFilterProvider() { - return new ViewerFilter() { - @Override - public boolean select(Viewer viewer, Object parentElement, Object element) { - String lookingString = m_text.getText().toLowerCase(); - if (isDroppedDown() && lookingString.length() > 0) { - ComboBoxItem item = (ComboBoxItem) element; - return item.m_label.toLowerCase().indexOf(lookingString) != -1; - } - return true; - } - }; - } - - //////////////////////////////////////////////////////////////////////////// - // - // Items - // - //////////////////////////////////////////////////////////////////////////// - protected static class ComboBoxItem { - public final String m_label; - public final Image m_image; - - public ComboBoxItem(String label, Image image) { - m_label = label; - m_image = image; - } - } - - ArrayList<ComboBoxItem> m_items = Lists.newArrayList(); - - /** - * Add new item. - */ - public void addItem(String label, Image image) { - Assert.isTrue(!isDroppedDown()); - m_items.add(new ComboBoxItem(label, image)); - } - - public void addItem(String label) { - addItem(label, null); - } - - public void removeAll() { - m_items.clear(); - } - - public int getItemCount() { - return m_items.size(); - } - - public String getItemLabel(int index) { - return m_items.get(index).m_label; - } - - //////////////////////////////////////////////////////////////////////////// - // - // Access - // - //////////////////////////////////////////////////////////////////////////// - public boolean isComboFocused() { - return isFocusControl() - || m_text.isFocusControl() - || m_button.isFocusControl() - || m_canvas.isFocusControl() - || m_popup.isFocusControl() - || m_table.getTable().isFocusControl(); - } - - /** - * Edit text. - */ - public String getEditText() { - return m_text.getText(); - } - - public void setEditText(String text) { - m_text.setText(text == null ? "" : text); - m_text.selectAll(); - } - - public void setEditSelection(int start, int end) { - m_text.setSelection(start, end); - } - - /** - * Read only. - */ - public void setReadOnly(boolean value) { - m_text.setEditable(!value); - m_button.setEnabled(!value); - } - - /** - * Drop down width. - */ - public boolean isFullDropdownTableWidth() { - return m_fullDropdownTableWidth; - } - - public void setFullDropdownTableWidth(boolean value) { - Assert.isTrue(!isDroppedDown()); - m_fullDropdownTableWidth = value; - } - - //////////////////////////////////////////////////////////////////////////// - // - // Selection - // - //////////////////////////////////////////////////////////////////////////// - private int m_selectionIndex = -1; - - /** - * Selection index. - */ - public int getSelectionIndex() { - return m_selectionIndex; - } - - public void setSelectionIndex(int index) { - m_selectionIndex = index; - if (isDroppedDown()) { - m_table.getTable().setSelection(m_selectionIndex); - } - setEditText(getSelectionText()); - } - - /** - * Selection text. - */ - private String getSelectionText() { - if (m_selectionIndex != -1 && isDroppedDown()) { - Object itemData = m_table.getTable().getItem(m_selectionIndex).getData(); - return ((ComboBoxItem) itemData).m_label; - } - return null; - } - - /** - * Selection image. - */ - private Image getSelectionImage() { - return m_selectionIndex != -1 ? m_items.get(m_selectionIndex).m_image : null; - } - - public void setSelectionText(String label) { - TableItem[] items = m_table.getTable().getItems(); - for (int i = 0; i < items.length; i++) { - TableItem item = items[i]; - if (item.getText().equals(label)) { - setSelectionIndex(i); - return; - } - } - // no such item - setSelectionIndex(-1); - setEditText(label); - } - - /** - * Adds the listener to receive events. - */ - public void addSelectionListener(SelectionListener listener) { - checkWidget(); - if (listener == null) { - SWT.error(SWT.ERROR_NULL_ARGUMENT); - } - TypedListener typedListener = new TypedListener(listener); - addListener(SWT.Selection, typedListener); - addListener(SWT.DefaultSelection, typedListener); - } - - //////////////////////////////////////////////////////////////////////////// - // - // Popup - // - //////////////////////////////////////////////////////////////////////////// - public boolean isDroppedDown() { - return m_popup.isVisible(); - } - - public void comboDropDown(boolean dropdown) { - // check, may be we already in this drop state - if (dropdown == isDroppedDown()) { - return; - } - // close combo - if (dropdown) { - // initialize - m_table.setInput(m_items); - Table table = m_table.getTable(); - TableColumn column = table.getColumn(0); - column.pack(); - table.pack(); - m_popup.pack(); - // compute table size - Rectangle tableBounds = table.getBounds(); - tableBounds.height = Math.min(tableBounds.height, table.getItemHeight() * 15);// max 15 items without scrolling - table.setBounds(tableBounds); - // prepare popup point - Point comboLocation = toDisplay(new Point(0, 0)); - Point comboSize = getSize(); - // compute popup size - Display display = getDisplay(); - Rectangle clientArea = display.getClientArea(); - int remainingDisplayHeight = clientArea.height - comboLocation.y - comboSize.y - 10; - int preferredHeight = Math.min(tableBounds.height, remainingDisplayHeight); - int remainingDisplayWidth = clientArea.width - comboLocation.x - 10; - int preferredWidth = - isFullDropdownTableWidth() - ? Math.min(tableBounds.width, remainingDisplayWidth) - : comboSize.x; - Rectangle popupBounds = - new Rectangle(comboLocation.x, - comboLocation.y + comboSize.y, - preferredWidth, - preferredHeight); - Rectangle trimBounds = - m_popup.computeTrim(popupBounds.x, popupBounds.y, popupBounds.width, popupBounds.height); - m_popup.setBounds(popupBounds.x, popupBounds.y, 2 * popupBounds.width - trimBounds.width, 2 - * popupBounds.height - - trimBounds.height); - // adjust column size - column.setWidth(table.getClientArea().width); - // show popup - m_popup.setVisible(true); - table.setSelection(getSelectionIndex()); - } else { - // hide popup - m_popup.setVisible(false); - } - } - - protected final void setFocus2Text(final boolean selectAll) { - getDisplay().asyncExec(new Runnable() { - final boolean m_selectAll = selectAll; - - @Override - public void run() { - if (!m_text.isDisposed()) { - m_text.setFocus(); - if (m_selectAll) { - m_text.selectAll(); - } - } - } - }); - } - - //////////////////////////////////////////////////////////////////////////// - // - // Utilities - // - //////////////////////////////////////////////////////////////////////////// - protected static Event convert2event(TypedEvent tEvent) { - Event event = new Event(); - event.widget = tEvent.widget; - event.display = tEvent.display; - event.widget = tEvent.widget; - event.time = tEvent.time; - event.data = tEvent.data; - if (tEvent instanceof KeyEvent) { - KeyEvent kEvent = (KeyEvent) tEvent; - event.character = kEvent.character; - event.keyCode = kEvent.keyCode; - event.stateMask = kEvent.stateMask; - event.doit = kEvent.doit; - } - if (tEvent instanceof SelectionEvent) { - SelectionEvent sEvent = (SelectionEvent) tEvent; - event.item = sEvent.item; - event.x = sEvent.x; - event.y = sEvent.y; - event.width = sEvent.width; - event.height = sEvent.height; - event.detail = sEvent.detail; - event.stateMask = sEvent.stateMask; - event.text = sEvent.text; - event.doit = sEvent.doit; - } - return event; - } -} |