| /* |
| * Copyright (c) 2003, 2013, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. Oracle designates this |
| * particular file as subject to the "Classpath" exception as provided |
| * by Oracle in the LICENSE file that accompanied this code. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| package sun.awt.X11; |
| |
| import java.awt.*; |
| import java.awt.peer.*; |
| import java.awt.event.*; |
| import sun.util.logging.PlatformLogger; |
| |
| // FIXME: tab traversal should be disabled when mouse is captured (4816336) |
| |
| // FIXME: key and mouse events should not be delivered to listeners when the Choice is unfurled. Must override handleNativeKey/MouseEvent (4816336) |
| |
| // FIXME: test programmatic add/remove/clear/etc |
| |
| // FIXME: account for unfurling at the edge of the screen |
| // Note: can't set x,y on layout(), 'cause moving the top-level to the |
| // edge of the screen won't call layout(). Just do it on paint, I guess |
| |
| // TODO: make painting more efficient (i.e. when down arrow is pressed, only two items should need to be repainted. |
| |
| public class XChoicePeer extends XComponentPeer implements ChoicePeer, ToplevelStateListener { |
| private static final PlatformLogger log = PlatformLogger.getLogger("sun.awt.X11.XChoicePeer"); |
| |
| private static final int MAX_UNFURLED_ITEMS = 10; // Maximum number of |
| // items to be displayed |
| // at a time in an |
| // unfurled Choice |
| // Description of these constants in ListHelper |
| public final static int TEXT_SPACE = 1; |
| public final static int BORDER_WIDTH = 1; |
| public final static int ITEM_MARGIN = 1; |
| public final static int SCROLLBAR_WIDTH = 15; |
| |
| |
| // SHARE THESE! |
| private static final Insets focusInsets = new Insets(0,0,0,0); |
| |
| |
| static final int WIDGET_OFFSET = 18; |
| |
| // Stolen from Tiny |
| static final int TEXT_XPAD = 8; |
| static final int TEXT_YPAD = 6; |
| |
| // FIXME: Motif uses a different focus color for the item within |
| // the unfurled Choice list and for when the Choice itself is focused and |
| // popped up. |
| static final Color focusColor = Color.black; |
| |
| // TODO: there is a time value that the mouse is held down. If short |
| // enough, the Choice stays popped down. If long enough, Choice |
| // is furled when the mouse is released |
| |
| private boolean unfurled = false; // Choice list is popped down |
| |
| private boolean dragging = false; // Mouse was pressed and is being |
| // dragged over the (unfurled) |
| // Choice |
| |
| private boolean mouseInSB = false; // Mouse is interacting with the |
| // scrollbar |
| |
| private boolean firstPress = false; // mouse was pressed on |
| // furled Choice so we |
| // not need to furl the |
| // Choice when MOUSE_RELEASED occured |
| |
| // 6425067. Mouse was pressed on furled choice and dropdown list appeared over Choice itself |
| // and then there were no mouse movements until MOUSE_RELEASE. |
| // This scenario leads to ItemStateChanged as the choice logic uses |
| // MouseReleased event to send ItemStateChanged. To prevent it we should |
| // use a combination of firstPress and wasDragged variables. |
| // The only difference in dragging and wasDragged is: last one will not |
| // set to false on mouse ungrab. It become false after MouseRelased() finishes. |
| private boolean wasDragged = false; |
| private ListHelper helper; |
| private UnfurledChoice unfurledChoice; |
| |
| // TODO: Choice remembers where it was scrolled to when unfurled - it's not |
| // always to the currently selected item. |
| |
| // Indicates whether or not to paint selected item in the choice. |
| // Default is to paint |
| private boolean drawSelectedItem = true; |
| |
| // If set, indicates components under which choice popup should be showed. |
| // The choice's popup width and location should be adjust to appear |
| // under both choice and alignUnder component. |
| private Component alignUnder; |
| |
| // If cursor is outside of an unfurled Choice when the mouse is |
| // released, Choice item should NOT be updated. Remember the proper index. |
| private int dragStartIdx = -1; |
| |
| // Holds the listener (XFileDialogPeer) which the processing events from the choice |
| // See 6240074 for more information |
| private XChoicePeerListener choiceListener; |
| |
| XChoicePeer(Choice target) { |
| super(target); |
| } |
| |
| void preInit(XCreateWindowParams params) { |
| super.preInit(params); |
| Choice target = (Choice)this.target; |
| int numItems = target.getItemCount(); |
| unfurledChoice = new UnfurledChoice(target); |
| getToplevelXWindow().addToplevelStateListener(this); |
| helper = new ListHelper(unfurledChoice, |
| getGUIcolors(), |
| numItems, |
| false, |
| true, |
| false, |
| target.getFont(), |
| MAX_UNFURLED_ITEMS, |
| TEXT_SPACE, |
| ITEM_MARGIN, |
| BORDER_WIDTH, |
| SCROLLBAR_WIDTH); |
| } |
| |
| void postInit(XCreateWindowParams params) { |
| super.postInit(params); |
| Choice target = (Choice)this.target; |
| int numItems = target.getItemCount(); |
| |
| // Add all items |
| for (int i = 0; i < numItems; i++) { |
| helper.add(target.getItem(i)); |
| } |
| if (!helper.isEmpty()) { |
| helper.select(target.getSelectedIndex()); |
| helper.setFocusedIndex(target.getSelectedIndex()); |
| } |
| helper.updateColors(getGUIcolors()); |
| updateMotifColors(getPeerBackground()); |
| } |
| |
| public boolean isFocusable() { return true; } |
| |
| // 6399679. check if super.setBounds() actually changes the size of the |
| // component and then compare current Choice size with a new one. If |
| // they differs then hide dropdown menu |
| public void setBounds(int x, int y, int width, int height, int op) { |
| int oldX = this.x; |
| int oldY = this.y; |
| int oldWidth = this.width; |
| int oldHeight = this.height; |
| super.setBounds(x, y, width, height, op); |
| if (unfurled && (oldX != this.x || oldY != this.y || oldWidth != this.width || oldHeight != this.height) ) { |
| hidePopdownMenu(); |
| } |
| } |
| |
| public void focusGained(FocusEvent e) { |
| // TODO: only need to paint the focus bit |
| super.focusGained(e); |
| repaint(); |
| } |
| |
| /* |
| * Fix for 6246503 : Disabling a choice after selection locks keyboard, mouse and makes the system unusable, Xtoolkit |
| * if setEnabled(false) invoked we should close opened choice in |
| * order to prevent keyboard/mouse lock. |
| */ |
| public void setEnabled(boolean value) { |
| super.setEnabled(value); |
| helper.updateColors(getGUIcolors()); |
| if (!value && unfurled){ |
| hidePopdownMenu(); |
| } |
| } |
| |
| public void focusLost(FocusEvent e) { |
| // TODO: only need to paint the focus bit? |
| super.focusLost(e); |
| repaint(); |
| } |
| |
| void ungrabInputImpl() { |
| if (unfurled) { |
| unfurled = false; |
| dragging = false; |
| mouseInSB = false; |
| unfurledChoice.setVisible(false); |
| } |
| |
| super.ungrabInputImpl(); |
| } |
| |
| void handleJavaKeyEvent(KeyEvent e) { |
| if (e.getID() == KeyEvent.KEY_PRESSED) { |
| keyPressed(e); |
| } |
| } |
| |
| public void keyPressed(KeyEvent e) { |
| switch(e.getKeyCode()) { |
| // UP & DOWN are same if furled or unfurled |
| case KeyEvent.VK_DOWN: |
| case KeyEvent.VK_KP_DOWN: { |
| if (helper.getItemCount() > 1) { |
| helper.down(); |
| int newIdx = helper.getSelectedIndex(); |
| |
| ((Choice)target).select(newIdx); |
| postEvent(new ItemEvent((Choice)target, |
| ItemEvent.ITEM_STATE_CHANGED, |
| ((Choice)target).getItem(newIdx), |
| ItemEvent.SELECTED)); |
| repaint(); |
| } |
| break; |
| } |
| case KeyEvent.VK_UP: |
| case KeyEvent.VK_KP_UP: { |
| if (helper.getItemCount() > 1) { |
| helper.up(); |
| int newIdx = helper.getSelectedIndex(); |
| |
| ((Choice)target).select(newIdx); |
| postEvent(new ItemEvent((Choice)target, |
| ItemEvent.ITEM_STATE_CHANGED, |
| ((Choice)target).getItem(newIdx), |
| ItemEvent.SELECTED)); |
| repaint(); |
| } |
| break; |
| } |
| case KeyEvent.VK_PAGE_DOWN: |
| if (unfurled && !dragging) { |
| int oldIdx = helper.getSelectedIndex(); |
| helper.pageDown(); |
| int newIdx = helper.getSelectedIndex(); |
| if (oldIdx != newIdx) { |
| ((Choice)target).select(newIdx); |
| postEvent(new ItemEvent((Choice)target, |
| ItemEvent.ITEM_STATE_CHANGED, |
| ((Choice)target).getItem(newIdx), |
| ItemEvent.SELECTED)); |
| repaint(); |
| } |
| } |
| break; |
| case KeyEvent.VK_PAGE_UP: |
| if (unfurled && !dragging) { |
| int oldIdx = helper.getSelectedIndex(); |
| helper.pageUp(); |
| int newIdx = helper.getSelectedIndex(); |
| if (oldIdx != newIdx) { |
| ((Choice)target).select(newIdx); |
| postEvent(new ItemEvent((Choice)target, |
| ItemEvent.ITEM_STATE_CHANGED, |
| ((Choice)target).getItem(newIdx), |
| ItemEvent.SELECTED)); |
| repaint(); |
| } |
| } |
| break; |
| case KeyEvent.VK_ESCAPE: |
| case KeyEvent.VK_ENTER: |
| if (unfurled) { |
| if (dragging){ |
| if (e.getKeyCode() == KeyEvent.VK_ESCAPE){ |
| //This also happens on |
| // - MouseButton2,3, etc. press |
| // - ENTER press |
| helper.select(dragStartIdx); |
| } else { //KeyEvent.VK_ENTER: |
| int newIdx = helper.getSelectedIndex(); |
| ((Choice)target).select(newIdx); |
| postEvent(new ItemEvent((Choice)target, |
| ItemEvent.ITEM_STATE_CHANGED, |
| ((Choice)target).getItem(newIdx), |
| ItemEvent.SELECTED)); |
| } |
| } |
| hidePopdownMenu(); |
| dragging = false; |
| wasDragged = false; |
| mouseInSB = false; |
| |
| // See 6240074 for more information |
| if (choiceListener != null){ |
| choiceListener.unfurledChoiceClosing(); |
| } |
| } |
| break; |
| default: |
| if (unfurled) { |
| Toolkit.getDefaultToolkit().beep(); |
| } |
| break; |
| } |
| } |
| |
| public boolean handlesWheelScrolling() { return true; } |
| |
| void handleJavaMouseWheelEvent(MouseWheelEvent e) { |
| if (unfurled && helper.isVSBVisible()) { |
| if (ListHelper.doWheelScroll(helper.getVSB(), null, e)) { |
| repaint(); |
| } |
| } |
| } |
| |
| void handleJavaMouseEvent(MouseEvent e) { |
| super.handleJavaMouseEvent(e); |
| int i = e.getID(); |
| switch (i) { |
| case MouseEvent.MOUSE_PRESSED: |
| mousePressed(e); |
| break; |
| case MouseEvent.MOUSE_RELEASED: |
| mouseReleased(e); |
| break; |
| case MouseEvent.MOUSE_DRAGGED: |
| mouseDragged(e); |
| break; |
| } |
| } |
| |
| public void mousePressed(MouseEvent e) { |
| /* |
| * fix for 5003166: a Choice on XAWT shouldn't react to any |
| * mouse button presses except left. This involves presses on |
| * Choice but not on opened part of choice. |
| */ |
| if (e.getButton() == MouseEvent.BUTTON1){ |
| dragStartIdx = helper.getSelectedIndex(); |
| if (unfurled) { |
| //fix 6259328: PIT: Choice scrolls when dragging the parent frame while drop-down is active, XToolkit |
| if (! (isMouseEventInChoice(e) || |
| unfurledChoice.isMouseEventInside(e))) |
| { |
| hidePopdownMenu(); |
| } |
| // Press on unfurled Choice. Highlight the item under the cursor, |
| // but don't send item event or set the text on the button yet |
| unfurledChoice.trackMouse(e); |
| } |
| else { |
| // Choice is up - unfurl it |
| grabInput(); |
| unfurledChoice.toFront(); |
| firstPress = true; |
| wasDragged = false; |
| unfurled = true; |
| } |
| } |
| } |
| |
| /* |
| * helper method for mouseReleased routine |
| */ |
| void hidePopdownMenu(){ |
| ungrabInput(); |
| unfurledChoice.setVisible(false); |
| unfurled = false; |
| } |
| |
| public void mouseReleased(MouseEvent e) { |
| if (unfurled) { |
| if (mouseInSB) { |
| unfurledChoice.trackMouse(e); |
| } |
| else { |
| // We pressed and dragged onto the Choice, or, this is the |
| // second release after clicking to make the Choice "stick" |
| // unfurled. |
| // This release should ungrab/furl, and set the new item if |
| // release was over the unfurled Choice. |
| |
| // Fix for 6239944 : Choice shouldn't close its |
| // pop-down menu if user presses Mouse on Choice's Scrollbar |
| // some additional cases like releasing mouse outside |
| // of Choice are considered too |
| boolean isMouseEventInside = unfurledChoice.isMouseEventInside( e ); |
| boolean isMouseInListArea = unfurledChoice.isMouseInListArea( e ); |
| |
| // Fixed 6318746: REG: File Selection is failing |
| // We shouldn't restore the selected item |
| // if the mouse was dragged outside the drop-down choice area |
| if (!helper.isEmpty() && !isMouseInListArea && dragging) { |
| // Set the selected item back how it was. |
| ((Choice)target).select(dragStartIdx); |
| } |
| |
| // Choice must be closed if user releases mouse on |
| // pop-down menu on the second click |
| if ( !firstPress && isMouseInListArea) { |
| hidePopdownMenu(); |
| } |
| // Choice must be closed if user releases mouse |
| // outside of Choice's pop-down menu on the second click |
| if ( !firstPress && !isMouseEventInside) { |
| hidePopdownMenu(); |
| } |
| //if user drags Mouse on pop-down menu, Scrollbar or |
| // outside the Choice |
| if ( firstPress && dragging) { |
| hidePopdownMenu(); |
| } |
| /* this could happen when user has opened a Choice and |
| * released mouse button. Then he drags mouse on the |
| * Scrollbar and releases mouse again. |
| */ |
| if ( !firstPress && !isMouseInListArea && |
| isMouseEventInside && dragging) |
| { |
| hidePopdownMenu(); |
| } |
| |
| if (!helper.isEmpty()) { |
| // Only update the Choice if the mouse button is released |
| // over the list of items. |
| if (unfurledChoice.isMouseInListArea(e)) { |
| int newIdx = helper.getSelectedIndex(); |
| if (newIdx >= 0) { |
| // Update the selected item in the target now that |
| // the mouse selection is complete. |
| if (newIdx != dragStartIdx) { |
| ((Choice)target).select(newIdx); |
| // NOTE: We get a repaint when Choice.select() |
| // calls our peer.select(). |
| } |
| if (wasDragged && e.getButton() != MouseEvent.BUTTON1){ |
| ((Choice)target).select(dragStartIdx); |
| } |
| |
| /*fix for 6239941 : Choice triggers ItemEvent when selecting an item with right mouse button, Xtoolkit |
| * We should generate ItemEvent if only |
| * LeftMouseButton used */ |
| if (e.getButton() == MouseEvent.BUTTON1 && |
| (!firstPress || wasDragged )) |
| { |
| postEvent(new ItemEvent((Choice)target, |
| ItemEvent.ITEM_STATE_CHANGED, |
| ((Choice)target).getItem(newIdx), |
| ItemEvent.SELECTED)); |
| } |
| |
| // see 6240074 for more information |
| if (choiceListener != null) { |
| choiceListener.unfurledChoiceClosing(); |
| } |
| } |
| } |
| } |
| // See 6243382 for more information |
| unfurledChoice.trackMouse(e); |
| } |
| } |
| |
| dragging = false; |
| wasDragged = false; |
| firstPress = false; |
| dragStartIdx = -1; |
| } |
| |
| public void mouseDragged(MouseEvent e) { |
| /* |
| * fix for 5003166. On Motif user are unable to drag |
| * mouse inside opened Choice if he drags the mouse with |
| * different from LEFT mouse button ( e.g. RIGHT or MIDDLE). |
| * This fix make impossible to drag mouse inside opened choice |
| * with other mouse buttons rather then LEFT one. |
| */ |
| if ( e.getModifiers() == MouseEvent.BUTTON1_MASK ){ |
| dragging = true; |
| wasDragged = true; |
| unfurledChoice.trackMouse(e); |
| } |
| } |
| |
| // Stolen from TinyChoicePeer |
| public Dimension getMinimumSize() { |
| // TODO: move this impl into ListHelper? |
| FontMetrics fm = getFontMetrics(target.getFont()); |
| Choice c = (Choice)target; |
| int w = 0; |
| for (int i = c.countItems() ; i-- > 0 ;) { |
| w = Math.max(fm.stringWidth(c.getItem(i)), w); |
| } |
| return new Dimension(w + TEXT_XPAD + WIDGET_OFFSET, |
| fm.getMaxAscent() + fm.getMaxDescent() + TEXT_YPAD); |
| } |
| |
| /* |
| * Layout the... |
| */ |
| public void layout() { |
| /* |
| Dimension size = target.getSize(); |
| Font f = target.getFont(); |
| FontMetrics fm = target.getFontMetrics(f); |
| String text = ((Choice)target).getLabel(); |
| |
| textRect.height = fm.getHeight(); |
| |
| checkBoxSize = getChoiceSize(fm); |
| |
| // Note - Motif appears to use an left inset that is slightly |
| // scaled to the checkbox/font size. |
| cbX = borderInsets.left + checkBoxInsetFromText; |
| cbY = size.height / 2 - checkBoxSize / 2; |
| int minTextX = borderInsets.left + 2 * checkBoxInsetFromText + checkBoxSize; |
| // FIXME: will need to account for alignment? |
| // FIXME: call layout() on alignment changes |
| //textRect.width = fm.stringWidth(text); |
| textRect.width = fm.stringWidth(text == null ? "" : text); |
| textRect.x = Math.max(minTextX, size.width / 2 - textRect.width / 2); |
| textRect.y = size.height / 2 - textRect.height / 2 + borderInsets.top; |
| |
| focusRect.x = focusInsets.left; |
| focusRect.y = focusInsets.top; |
| focusRect.width = size.width-(focusInsets.left+focusInsets.right)-1; |
| focusRect.height = size.height-(focusInsets.top+focusInsets.bottom)-1; |
| |
| myCheckMark = AffineTransform.getScaleInstance((double)target.getFont().getSize() / MASTER_SIZE, (double)target.getFont().getSize() / MASTER_SIZE).createTransformedShape(MASTER_CHECKMARK); |
| */ |
| |
| } |
| |
| /** |
| * Paint the choice |
| */ |
| public void paint(Graphics g) { |
| flush(); |
| Dimension size = getPeerSize(); |
| |
| // TODO: when mouse is down over button, widget should be drawn depressed |
| g.setColor(getPeerBackground()); |
| g.fillRect(0, 0, width, height); |
| |
| drawMotif3DRect(g, 1, 1, width-2, height-2, false); |
| drawMotif3DRect(g, width - WIDGET_OFFSET, (height / 2) - 3, 12, 6, false); |
| |
| if (!helper.isEmpty() && helper.getSelectedIndex() != -1) { |
| g.setFont(getPeerFont()); |
| FontMetrics fm = g.getFontMetrics(); |
| String lbl = helper.getItem(helper.getSelectedIndex()); |
| if (lbl != null && drawSelectedItem) { |
| g.setClip(1, 1, width - WIDGET_OFFSET - 2, height); |
| if (isEnabled()) { |
| g.setColor(getPeerForeground()); |
| g.drawString(lbl, 5, (height + fm.getMaxAscent()-fm.getMaxDescent())/2); |
| } |
| else { |
| g.setColor(getPeerBackground().brighter()); |
| g.drawString(lbl, 5, (height + fm.getMaxAscent()-fm.getMaxDescent())/2); |
| g.setColor(getPeerBackground().darker()); |
| g.drawString(lbl, 4, ((height + fm.getMaxAscent()-fm.getMaxDescent())/2)-1); |
| } |
| g.setClip(0, 0, width, height); |
| } |
| } |
| if (hasFocus()) { |
| paintFocus(g,focusInsets.left,focusInsets.top,size.width-(focusInsets.left+focusInsets.right)-1,size.height-(focusInsets.top+focusInsets.bottom)-1); |
| } |
| if (unfurled) { |
| unfurledChoice.repaint(); |
| } |
| flush(); |
| } |
| |
| protected void paintFocus(Graphics g, |
| int x, int y, int w, int h) { |
| g.setColor(focusColor); |
| g.drawRect(x,y,w,h); |
| } |
| |
| |
| |
| /* |
| * ChoicePeer methods stolen from TinyChoicePeer |
| */ |
| |
| public void select(int index) { |
| helper.select(index); |
| helper.setFocusedIndex(index); |
| repaint(); |
| } |
| |
| public void add(String item, int index) { |
| helper.add(item, index); |
| repaint(); |
| } |
| |
| public void remove(int index) { |
| boolean selected = (index == helper.getSelectedIndex()); |
| boolean visibled = (index >= helper.firstDisplayedIndex() && index <= helper.lastDisplayedIndex()); |
| helper.remove(index); |
| if (selected) { |
| if (helper.isEmpty()) { |
| helper.select(-1); |
| } |
| else { |
| helper.select(0); |
| } |
| } |
| /* |
| * Fix for 6248016 |
| * After removing the item of the choice we need to reshape unfurled choice |
| * in order to keep actual bounds of the choice |
| */ |
| |
| /* |
| * condition added only for performance |
| */ |
| if (!unfurled) { |
| // Fix 6292186: PIT: Choice is not refreshed properly when the last item gets removed, XToolkit |
| // We should take into account that there is no 'select' invoking (hence 'repaint') |
| // if the choice is empty (see Choice.java method removeNoInvalidate()) |
| // The condition isn't 'visibled' since it would be cause of the twice repainting |
| if (helper.isEmpty()) { |
| repaint(); |
| } |
| return; |
| } |
| |
| /* |
| * condition added only for performance |
| * the count of the visible items changed |
| */ |
| if (visibled){ |
| Rectangle r = unfurledChoice.placeOnScreen(); |
| unfurledChoice.reshape(r.x, r.y, r.width, r.height); |
| return; |
| } |
| |
| /* |
| * condition added only for performance |
| * the structure of visible items changed |
| * if removable item is non visible and non selected then there is no repaint |
| */ |
| if (visibled || selected){ |
| repaint(); |
| } |
| } |
| |
| public void removeAll() { |
| helper.removeAll(); |
| helper.select(-1); |
| /* |
| * Fix for 6248016 |
| * After removing the item of the choice we need to reshape unfurled choice |
| * in order to keep actual bounds of the choice |
| */ |
| Rectangle r = unfurledChoice.placeOnScreen(); |
| unfurledChoice.reshape(r.x, r.y, r.width, r.height); |
| repaint(); |
| } |
| |
| /** |
| * DEPRECATED: Replaced by add(String, int). |
| */ |
| public void addItem(String item, int index) { |
| add(item, index); |
| } |
| |
| public void setFont(Font font) { |
| super.setFont(font); |
| helper.setFont(this.font); |
| } |
| |
| public void setForeground(Color c) { |
| super.setForeground(c); |
| helper.updateColors(getGUIcolors()); |
| } |
| |
| public void setBackground(Color c) { |
| super.setBackground(c); |
| unfurledChoice.setBackground(c); |
| helper.updateColors(getGUIcolors()); |
| updateMotifColors(c); |
| } |
| |
| public void setDrawSelectedItem(boolean value) { |
| drawSelectedItem = value; |
| } |
| |
| public void setAlignUnder(Component comp) { |
| alignUnder = comp; |
| } |
| |
| // see 6240074 for more information |
| public void addXChoicePeerListener(XChoicePeerListener l){ |
| choiceListener = l; |
| } |
| |
| // see 6240074 for more information |
| public void removeXChoicePeerListener(){ |
| choiceListener = null; |
| } |
| |
| public boolean isUnfurled(){ |
| return unfurled; |
| } |
| |
| /* fix for 6261352. We should detect if current parent Window (containing a Choice) become iconified and hide pop-down menu with grab release. |
| * In this case we should hide pop-down menu. |
| */ |
| //calls from XWindowPeer. Could accept X-styled state events |
| public void stateChangedICCCM(int oldState, int newState) { |
| if (unfurled && oldState != newState){ |
| hidePopdownMenu(); |
| } |
| } |
| |
| //calls from XFramePeer. Could accept Frame's states. |
| public void stateChangedJava(int oldState, int newState) { |
| if (unfurled && oldState != newState){ |
| hidePopdownMenu(); |
| } |
| } |
| |
| /**************************************************************************/ |
| /* Common functionality between List & Choice |
| /**************************************************************************/ |
| |
| /** |
| * Inner class for the unfurled Choice list |
| * Much, much more docs |
| */ |
| class UnfurledChoice extends XWindow /*implements XScrollbarClient*/ { |
| |
| // First try - use Choice as the target |
| |
| public UnfurledChoice(Component target) { |
| super(target); |
| } |
| |
| // Override so we can do our own create() |
| public void preInit(XCreateWindowParams params) { |
| // A parent of this window is the target, at this point: wrong. |
| // Remove parent window; in the following preInit() call we'll calculate as a default |
| // a correct root window which is the proper parent for override redirect. |
| params.delete(PARENT_WINDOW); |
| super.preInit(params); |
| // Reset bounds(we'll set them later), set overrideRedirect |
| params.remove(BOUNDS); |
| params.add(OVERRIDE_REDIRECT, Boolean.TRUE); |
| } |
| |
| // Generally, bounds should be: |
| // x = target.x |
| // y = target.y + target.height |
| // w = Max(target.width, getLongestItemWidth) + possible vertScrollbar |
| // h = Min(MAX_UNFURLED_ITEMS, target.getItemCount()) * itemHeight |
| Rectangle placeOnScreen() { |
| int numItemsDisplayed; |
| // Motif paints an empty Choice the same size as a single item |
| if (helper.isEmpty()) { |
| numItemsDisplayed = 1; |
| } |
| else { |
| int numItems = helper.getItemCount(); |
| numItemsDisplayed = Math.min(MAX_UNFURLED_ITEMS, numItems); |
| } |
| Point global = XChoicePeer.this.toGlobal(0,0); |
| Dimension screen = Toolkit.getDefaultToolkit().getScreenSize(); |
| |
| if (alignUnder != null) { |
| Rectangle choiceRec = XChoicePeer.this.getBounds(); |
| choiceRec.setLocation(0, 0); |
| choiceRec = XChoicePeer.this.toGlobal(choiceRec); |
| Rectangle alignUnderRec = new Rectangle(alignUnder.getLocationOnScreen(), alignUnder.getSize()); // TODO: Security? |
| Rectangle result = choiceRec.union(alignUnderRec); |
| // we've got the left and width, calculate top and height |
| width = result.width; |
| x = result.x; |
| y = result.y + result.height; |
| height = 2*BORDER_WIDTH + |
| numItemsDisplayed*(helper.getItemHeight()+2*ITEM_MARGIN); |
| } else { |
| x = global.x; |
| y = global.y + XChoicePeer.this.height; |
| width = Math.max(XChoicePeer.this.width, |
| helper.getMaxItemWidth() + 2 * (BORDER_WIDTH + ITEM_MARGIN + TEXT_SPACE) + (helper.isVSBVisible() ? SCROLLBAR_WIDTH : 0)); |
| height = 2*BORDER_WIDTH + |
| numItemsDisplayed*(helper.getItemHeight()+2*ITEM_MARGIN); |
| } |
| // Don't run off the edge of the screen |
| if (x < 0) { |
| x = 0; |
| } |
| else if (x + width > screen.width) { |
| x = screen.width - width; |
| } |
| |
| if (y < 0) { |
| y = 0; |
| } |
| else if (y + height > screen.height) { |
| y = screen.height - height; |
| } |
| return new Rectangle(x, y, width, height); |
| } |
| |
| public void toFront() { |
| // see 6240074 for more information |
| if (choiceListener != null) |
| choiceListener.unfurledChoiceOpening(helper); |
| |
| Rectangle r = placeOnScreen(); |
| reshape(r.x, r.y, r.width, r.height); |
| super.toFront(); |
| setVisible(true); |
| } |
| |
| /* |
| * Track a MouseEvent (either a drag or a press) and paint a new |
| * selected item, if necessary. |
| */ |
| // FIXME: first unfurl after move is not at edge of the screen onto second monitor doesn't |
| // track mouse correctly. Problem is w/ UnfurledChoice coords |
| public void trackMouse(MouseEvent e) { |
| // Event coords are relative to the button, so translate a bit |
| Point local = toLocalCoords(e); |
| |
| // If x,y is over unfurled Choice, |
| // highlight item under cursor |
| |
| switch (e.getID()) { |
| case MouseEvent.MOUSE_PRESSED: |
| // FIXME: If the Choice is unfurled and the mouse is pressed |
| // outside of the Choice, the mouse should ungrab on the |
| // the press, not the release |
| if (helper.isInVertSB(getBounds(), local.x, local.y)) { |
| mouseInSB = true; |
| helper.handleVSBEvent(e, getBounds(), local.x, local.y); |
| } |
| else { |
| trackSelection(local.x, local.y); |
| } |
| break; |
| case MouseEvent.MOUSE_RELEASED: |
| if (mouseInSB) { |
| mouseInSB = false; |
| helper.handleVSBEvent(e, getBounds(), local.x, local.y); |
| }else{ |
| // See 6243382 for more information |
| helper.trackMouseReleasedScroll(); |
| } |
| /* |
| else { |
| trackSelection(local.x, local.y); |
| } |
| */ |
| break; |
| case MouseEvent.MOUSE_DRAGGED: |
| if (mouseInSB) { |
| helper.handleVSBEvent(e, getBounds(), local.x, local.y); |
| } |
| else { |
| // See 6243382 for more information |
| helper.trackMouseDraggedScroll(local.x, local.y, width, height); |
| trackSelection(local.x, local.y); |
| } |
| break; |
| } |
| } |
| |
| private void trackSelection(int transX, int transY) { |
| if (!helper.isEmpty()) { |
| if (transX > 0 && transX < width && |
| transY > 0 && transY < height) { |
| int newIdx = helper.y2index(transY); |
| if (log.isLoggable(PlatformLogger.FINE)) { |
| log.fine("transX=" + transX + ", transY=" + transY |
| + ",width=" + width + ", height=" + height |
| + ", newIdx=" + newIdx + " on " + target); |
| } |
| if ((newIdx >=0) && (newIdx < helper.getItemCount()) |
| && (newIdx != helper.getSelectedIndex())) |
| { |
| helper.select(newIdx); |
| unfurledChoice.repaint(); |
| } |
| } |
| } |
| // FIXME: If dragged off top or bottom, scroll if there's a vsb |
| // (ICK - we'll need a timer or our own event or something) |
| } |
| |
| /* |
| * fillRect with current Background color on the whole dropdown list. |
| */ |
| public void paintBackground(){ |
| Graphics g = getGraphics(); |
| g.setColor(getPeerBackground()); |
| g.fillRect(0, 0, width, height); |
| } |
| |
| /* |
| * 6405689. In some cases we should erase background to eliminate painting |
| * artefacts. |
| */ |
| public void repaint() { |
| if (!isVisible()) { |
| return; |
| } |
| if (helper.checkVsbVisibilityChangedAndReset()){ |
| paintBackground(); |
| } |
| super.repaint(); |
| } |
| |
| public void paint(Graphics g) { |
| //System.out.println("UC.paint()"); |
| Choice choice = (Choice)target; |
| Color colors[] = XChoicePeer.this.getGUIcolors(); |
| draw3DRect(g, getSystemColors(), 0, 0, width - 1, height - 1, true); |
| draw3DRect(g, getSystemColors(), 1, 1, width - 3, height - 3, true); |
| |
| helper.paintAllItems(g, |
| colors, |
| getBounds()); |
| } |
| |
| public void setVisible(boolean vis) { |
| xSetVisible(vis); |
| |
| if (!vis && alignUnder != null) { |
| alignUnder.requestFocusInWindow(); |
| } |
| } |
| |
| /** |
| * Return a MouseEvent's Point in coordinates relative to the |
| * UnfurledChoice. |
| */ |
| private Point toLocalCoords(MouseEvent e) { |
| // Event coords are relative to the button, so translate a bit |
| Point global = e.getLocationOnScreen(); |
| |
| global.x -= x; |
| global.y -= y; |
| return global; |
| } |
| |
| /* Returns true if the MouseEvent coords (which are based on the Choice) |
| * are inside of the UnfurledChoice. |
| */ |
| private boolean isMouseEventInside(MouseEvent e) { |
| Point local = toLocalCoords(e); |
| if (local.x > 0 && local.x < width && |
| local.y > 0 && local.y < height) { |
| return true; |
| } |
| return false; |
| } |
| |
| /** |
| * Tests if the mouse cursor is in the Unfurled Choice, yet not |
| * in the vertical scrollbar |
| */ |
| private boolean isMouseInListArea(MouseEvent e) { |
| if (isMouseEventInside(e)) { |
| Point local = toLocalCoords(e); |
| Rectangle bounds = getBounds(); |
| if (!helper.isInVertSB(bounds, local.x, local.y)) { |
| return true; |
| } |
| } |
| return false; |
| } |
| |
| /* |
| * Overridden from XWindow() because we don't want to send |
| * ComponentEvents |
| */ |
| public void handleConfigureNotifyEvent(XEvent xev) {} |
| public void handleMapNotifyEvent(XEvent xev) {} |
| public void handleUnmapNotifyEvent(XEvent xev) {} |
| } //UnfurledChoice |
| |
| public void dispose() { |
| if (unfurledChoice != null) { |
| unfurledChoice.destroy(); |
| } |
| super.dispose(); |
| } |
| |
| /* |
| * fix for 6239938 : Choice drop-down does not disappear when it loses |
| * focus, on XToolkit |
| * We are able to handle all _Key_ events received by Choice when |
| * it is in opened state without sending it to EventQueue. |
| * If Choice is in closed state we should behave like before: send |
| * all events to EventQueue. |
| * To be compatible with Motif we should handle all KeyEvents in |
| * Choice if it is opened. KeyEvents should be sent into Java if Choice is not opened. |
| */ |
| boolean prePostEvent(final AWTEvent e) { |
| if (unfurled){ |
| // fix for 6253211: PIT: MouseWheel events not triggered for Choice drop down in XAWT |
| if (e instanceof MouseWheelEvent){ |
| return super.prePostEvent(e); |
| } |
| //fix 6252982: PIT: Keyboard FocusTraversal not working when choice's drop-down is visible, on XToolkit |
| if (e instanceof KeyEvent){ |
| // notify XWindow that this event had been already handled and no need to post it again |
| InvocationEvent ev = new InvocationEvent(target, new Runnable() { |
| public void run() { |
| if(target.isFocusable() && |
| getParentTopLevel().isFocusableWindow() ) |
| { |
| handleJavaKeyEvent((KeyEvent)e); |
| } |
| } |
| }); |
| postEvent(ev); |
| |
| return true; |
| } else { |
| if (e instanceof MouseEvent){ |
| // Fix for 6240046 : REG:Choice's Drop-down does not disappear when clicking somewhere, after popup menu is disposed |
| // if user presses Right Mouse Button on opened (unfurled) |
| // Choice then we mustn't open a popup menu. We could filter |
| // Mouse Events and handle them in XChoicePeer if Choice |
| // currently in opened state. |
| MouseEvent me = (MouseEvent)e; |
| int eventId = e.getID(); |
| // fix 6251983: PIT: MouseDragged events not triggered |
| // fix 6251988: PIT: Choice consumes MouseReleased, MouseClicked events when clicking it with left button, |
| if ((unfurledChoice.isMouseEventInside(me) || |
| (!firstPress && eventId == MouseEvent.MOUSE_DRAGGED))) |
| { |
| return handleMouseEventByChoice(me); |
| } |
| // MouseMoved events should be fired in Choice's comp if it's not opened |
| // Shouldn't generate Moved Events. CR : 6251995 |
| if (eventId == MouseEvent.MOUSE_MOVED){ |
| return handleMouseEventByChoice(me); |
| } |
| //fix for 6272965: PIT: Choice triggers MousePressed when pressing mouse outside comp while drop-down is active, XTkt |
| if ( !firstPress && !( isMouseEventInChoice(me) || |
| unfurledChoice.isMouseEventInside(me)) && |
| ( eventId == MouseEvent.MOUSE_PRESSED || |
| eventId == MouseEvent.MOUSE_RELEASED || |
| eventId == MouseEvent.MOUSE_CLICKED ) |
| ) |
| { |
| return handleMouseEventByChoice(me); |
| } |
| } |
| }//else KeyEvent |
| }//if unfurled |
| return super.prePostEvent(e); |
| } |
| |
| //convenient method |
| //do not generate this kind of Events |
| public boolean handleMouseEventByChoice(final MouseEvent me){ |
| InvocationEvent ev = new InvocationEvent(target, new Runnable() { |
| public void run() { |
| handleJavaMouseEvent(me); |
| } |
| }); |
| postEvent(ev); |
| |
| return true; |
| } |
| |
| /* Returns true if the MouseEvent coords |
| * are inside of the Choice itself (it doesnt's depends on |
| * if this choice opened or not). |
| */ |
| private boolean isMouseEventInChoice(MouseEvent e) { |
| int x = e.getX(); |
| int y = e.getY(); |
| Rectangle choiceRect = getBounds(); |
| |
| if (x < 0 || x > choiceRect.width || |
| y < 0 || y > choiceRect.height) |
| { |
| return false; |
| } |
| return true; |
| } |
| } |
| |
| /* |
| * The listener interface for receiving "interesting" for XFileDialogPeer |
| * choice events (opening, closing). |
| * The listener added by means of the method addXChoicePeerListener |
| * A opening choice event is generated when the invoking unfurledChoice.toFront() |
| * A closing choice event is generated at the time of the processing the mouse releasing |
| * and the Enter pressing. |
| * see 6240074 for more information |
| */ |
| interface XChoicePeerListener{ |
| public void unfurledChoiceOpening(ListHelper choiceHelper); |
| public void unfurledChoiceClosing(); |
| } |
