private static Point getItemPointToClick(final int item) throws Exception { final Point[] result = new Point[1]; SwingUtilities.invokeAndWait(new Runnable() { @Override public void run() { BasicComboPopup popup = (BasicComboPopup)comboBoxUI.getComboPopup(); Point point = popup.getLocationOnScreen(); Dimension size = popup.getSize(); int step = size.height / items.length; point.x += size.width / 2; point.y += step / 2 + step * item; result[0] = point; } }); return result[0]; }
public MaterialComboBox() { setModel(new DefaultComboBoxModel<T>()); setRenderer(new FieldRenderer<T>(this)); setUI(new BasicComboBoxUI() { @Override protected ComboPopup createPopup() { BasicComboPopup popup = new Popup(comboBox); popup.getAccessibleContext().setAccessibleParent(comboBox); return popup; } @Override protected JButton createArrowButton() { JButton button = new javax.swing.plaf.basic.BasicArrowButton( javax.swing.plaf.basic.BasicArrowButton.SOUTH, MaterialColor.TRANSPARENT, MaterialColor.TRANSPARENT, MaterialColor.TRANSPARENT, MaterialColor.TRANSPARENT); button.setName("ComboBox.arrowButton"); return button; } }); setOpaque(false); setBackground(MaterialColor.TRANSPARENT); }
@Override protected ComboPopup createPopup() { return new BasicComboPopup(comboBox) { private static final long serialVersionUID = -1460253465809092623L; @Override protected void configurePopup() { setBorderPainted(true); setBorder(BorderFactory.createLineBorder(Template.COLOR_LIGHT_GRAY)); setOpaque(false); add(scroller); setFocusable(false); } }; }
private int lookupPopupItem(String pattern, boolean select) { BasicComboPopup popup = (BasicComboPopup) comboBox.getAccessibleContext().getAccessibleChild(0); JList list = popup.getList(); int nextMatch = list.getNextMatch(pattern, 0, Position.Bias.Forward); if (list.getSelectedIndex() > 0) { nextMatch = nextMatch < 0 ? list.getNextMatch(pattern, list.getSelectedIndex(), Position.Bias.Backward) : nextMatch; } if (select) { if (nextMatch >= 0) { list.ensureIndexIsVisible(nextMatch); list.setSelectedIndex(nextMatch); } else { list.getSelectionModel().clearSelection(); } } return nextMatch; }
/** * Alter the bounds of the popup just before it is made visible. */ @Override public void popupMenuWillBecomeVisible(PopupMenuEvent e) { @SuppressWarnings("unchecked") JComboBox<E> comboBox = (JComboBox<E>) e.getSource(); if (comboBox.getItemCount() == 0) return; final Object child = comboBox.getAccessibleContext().getAccessibleChild(0); if (child instanceof BasicComboPopup) { SwingUtilities.invokeLater(new Runnable() { public void run() { customizePopup((BasicComboPopup) child); } }); } }
private void customizePopup(BasicComboPopup popup) { scrollPane = getScrollPane(popup); if (popupWider) popupWider(popup); checkHorizontalScrollBar(popup); // For some reason in JDK7 the popup will not display at its preferred // width unless its location has been changed from its default // (ie. for normal "pop down" shift the popup and reset) Component comboBox = popup.getInvoker(); Point location = comboBox.getLocationOnScreen(); if (popupAbove) { int height = popup.getPreferredSize().height; popup.setLocation(location.x, location.y - height); } else { //int height = comboBox.getPreferredSize().height; //popup.setLocation(location.x, location.y + height - 1); //popup.setLocation(location.x, location.y + height); //TODO should not be hardcoded popup.setLocation(location.x + 5, location.y + 35); } }
private void popupWider(BasicComboPopup popup) { @SuppressWarnings("unchecked") JList<E> list = popup.getList(); // Determine the maximimum width to use: // a) determine the popup preferred width // b) limit width to the maximum if specified // c) ensure width is not less than the scroll pane width int popupWidth = list.getPreferredSize().width + 5 // make sure horizontal scrollbar doesn't appear + getScrollBarWidth(popup, scrollPane); if (maximumWidth != -1) { popupWidth = Math.min(popupWidth, maximumWidth); } Dimension scrollPaneSize = scrollPane.getPreferredSize(); popupWidth = Math.max(popupWidth, scrollPaneSize.width); // Adjust the width scrollPaneSize.width = popupWidth; scrollPane.setPreferredSize(scrollPaneSize); scrollPane.setMaximumSize(scrollPaneSize); }
public void testGetMinimumSize() throws Exception { ui.setComboBox(comboBox); ComboPopup popup = new BasicComboPopup(comboBox); ui.setPopup(popup); ui.setListBox(popup.getList()); ui.installListeners(); comboBox.setBorder(BorderFactory.createEmptyBorder(4, 4, 4, 4)); Dimension listPart = new BasicComboBoxRenderer().getListCellRendererComponent( popup.getList(), "", -1, false, false).getPreferredSize(); Dimension expectedSize = new Dimension(listPart.width + listPart.height + 8, listPart.height + 8); assertEquals(expectedSize, ui.getMinimumSize(null)); assertEquals(expectedSize, ui.getCachedMinimumSize()); ui.setCachedMinimumSize(new Dimension(100, 100)); assertEquals(ui.getCachedMinimumSize(), ui.getMinimumSize(null)); comboBox.addItem("aaa"); listPart = new BasicComboBoxRenderer().getListCellRendererComponent(popup.getList(), "aaa", -1, false, false).getPreferredSize(); expectedSize = new Dimension(listPart.width + listPart.height + 8, listPart.height + 8); assertEquals(expectedSize, ui.getMinimumSize(null)); }
/** * Alter the bounds of the popup just before it is made visible. */ @Override public void popupMenuWillBecomeVisible(PopupMenuEvent e) { JComboBox comboBox = (JComboBox) e.getSource(); if (comboBox.getItemCount() == 0) return; final Object child = comboBox.getAccessibleContext().getAccessibleChild(0); if (child instanceof BasicComboPopup) { SwingUtilities.invokeLater(new Runnable() { public void run() { customizePopup((BasicComboPopup) child); } }); } }
protected void popupWider(BasicComboPopup popup) { JList list = popup.getList(); // Determine the maximimum width to use: // a) determine the popup preferred width // b) limit width to the maximum if specified // c) ensure width is not less than the scroll pane width int popupWidth = list.getPreferredSize().width + 5 // make sure horizontal scrollbar doesn't appear + getScrollBarWidth(popup, scrollPane); if (maximumWidth != -1) { popupWidth = Math.min(popupWidth, maximumWidth); } Dimension scrollPaneSize = scrollPane.getPreferredSize(); popupWidth = Math.max(popupWidth, scrollPaneSize.width); // Adjust the width scrollPaneSize.width = popupWidth; scrollPane.setPreferredSize(scrollPaneSize); scrollPane.setMaximumSize(scrollPaneSize); }
@Override protected ComboPopup createPopup() { BasicComboPopup popup = new BasicComboPopup(comboBox) { /** * */ private static final long serialVersionUID = 1L; @Override public void show() { Dimension popupSize = ((SteppedComboBox) comboBox).getPopupSize(); popupSize.setSize(popupSize.width, getPopupHeightForRowCount(comboBox.getMaximumRowCount())); Rectangle popupBounds = computePopupBounds(0, comboBox.getBounds().height, popupSize.width, popupSize.height); scroller.setMaximumSize(popupBounds.getSize()); scroller.setPreferredSize(popupBounds.getSize()); scroller.setMinimumSize(popupBounds.getSize()); list.invalidate(); int selectedIndex = comboBox.getSelectedIndex(); if (selectedIndex == -1) { list.clearSelection(); } else { list.setSelectedIndex(selectedIndex); } list.ensureIndexIsVisible(list.getSelectedIndex()); setLightWeightPopupEnabled(comboBox.isLightWeightPopupEnabled()); show(comboBox, popupBounds.x, popupBounds.y); } }; popup.getAccessibleContext().setAccessibleParent(comboBox); return popup; }
private void fireActiveDescendant() { if (JPopupMenu.this instanceof BasicComboPopup) { // get the popup list JList<?> popupList = ((BasicComboPopup)JPopupMenu.this).getList(); if (popupList == null) { return; } // get the first selected item AccessibleContext ac = popupList.getAccessibleContext(); AccessibleSelection selection = ac.getAccessibleSelection(); if (selection == null) { return; } Accessible a = selection.getAccessibleSelection(0); if (a == null) { return; } AccessibleContext selectedItem = a.getAccessibleContext(); // fire the event with the popup invoker as the source. if (selectedItem != null && invoker != null) { AccessibleContext invokerContext = invoker.getAccessibleContext(); if (invokerContext != null) { // Check invokerContext because Component.getAccessibleContext // returns null. Classes that extend Component are responsible // for returning a non-null AccessibleContext. invokerContext.firePropertyChange( ACCESSIBLE_ACTIVE_DESCENDANT_PROPERTY, null, selectedItem); } } } }
public static BasicComboPopup getPopup() { AccessibleContext c = cb.getAccessibleContext(); for(int i = 0; i < c.getAccessibleChildrenCount(); i ++) { if (c.getAccessibleChild(i) instanceof BasicComboPopup) { return (BasicComboPopup) c.getAccessibleChild(i); } } throw new AssertionError("No BasicComboPopup found"); }
@Override protected ComboPopup createPopup() { BasicComboPopup popup = new BasicComboPopup(comboBox) { @Override protected Rectangle computePopupBounds(int px, int py, int pw, int ph) { return super.computePopupBounds(px, py, Math.max(comboBox.getPreferredSize().width, pw), ph); } }; popup.getAccessibleContext().setAccessibleParent(comboBox); return popup; }
/** * Updates the color of the user state combo box */ private void updateStateBoxColor(){ ComboUserState.setForeground(state_colors[ComboUserState.getSelectedIndex()]); Object child = ComboUserState.getAccessibleContext().getAccessibleChild(0); BasicComboPopup popup = (BasicComboPopup)child; JList list = popup.getList(); list.setSelectionForeground(state_colors[ComboUserState.getSelectedIndex()]); list.setSelectionBackground(Color.WHITE); }
