Search in sources :

Example 61 with DropTarget

use of org.eclipse.swt.dnd.DropTarget in project eclipse.platform.swt by eclipse.

the class Bug66356_DND_move_reported_to_drag_source_even_though_cancelled method main.

public static void main(String[] args) {
    Display display = new Display();
    Shell shell = new Shell(display);
    shell.setLayout(new FillLayout());
    Button source = new Button(shell, SWT.PUSH);
    source.setText("Source");
    DragSource dragSource = new DragSource(source, DND.DROP_MOVE);
    dragSource.setTransfer(new Transfer[] { TextTransfer.getInstance() });
    dragSource.addDragListener(new DragSourceAdapter() {

        @Override
        public void dragSetData(DragSourceEvent event) {
            event.data = "hello";
        }

        @Override
        public void dragFinished(DragSourceEvent event) {
            System.out.println("Move = " + (event.detail == DND.DROP_MOVE));
        }
    });
    Button dest = new Button(shell, SWT.PUSH);
    dest.setText("Dest");
    DropTarget dropTarget = new DropTarget(dest, DND.DROP_MOVE);
    dropTarget.setTransfer(new Transfer[] { TextTransfer.getInstance() });
    // dropTarget.addDropListener(new DropTargetAdapter() {
    // public void drop(DropTargetEvent event) {
    // event.detail = DND.DROP_NONE;
    // }
    // });
    // dropTarget.addDropListener(new DropTargetListener() {
    // 
    // @Override
    // public void dropAccept(DropTargetEvent event) {
    // // TD Auto-generated method stub
    // event.detail = DND.DROP_NONE;
    // 
    // }
    // 
    // @Override
    // public void drop(DropTargetEvent event) {
    // // TD Auto-generated method stub
    // 
    // }
    // 
    // @Override
    // public void dragOver(DropTargetEvent event) {
    // // TD Auto-generated method stub
    // 
    // }
    // 
    // @Override
    // public void dragOperationChanged(DropTargetEvent event) {
    // // TD Auto-generated method stub
    // 
    // }
    // 
    // @Override
    // public void dragLeave(DropTargetEvent event) {
    // // TD Auto-generated method stub
    // 
    // }
    // 
    // @Override
    // public void dragEnter(DropTargetEvent event) {
    // // TD Auto-generated method stub
    // 
    // }
    // });
    shell.pack();
    shell.open();
    while (!shell.isDisposed()) {
        if (!display.readAndDispatch())
            display.sleep();
    }
    display.dispose();
}
Also used : DragSourceEvent(org.eclipse.swt.dnd.DragSourceEvent) DragSourceAdapter(org.eclipse.swt.dnd.DragSourceAdapter) Shell(org.eclipse.swt.widgets.Shell) Button(org.eclipse.swt.widgets.Button) FillLayout(org.eclipse.swt.layout.FillLayout) DragSource(org.eclipse.swt.dnd.DragSource) DropTarget(org.eclipse.swt.dnd.DropTarget) Display(org.eclipse.swt.widgets.Display)

Example 62 with DropTarget

use of org.eclipse.swt.dnd.DropTarget in project BiglyBT by BiglySoftware.

the class BuddyPluginViewBetaChat method buildSupport2.

private void buildSupport2(Composite parent) {
    boolean public_chat = !chat.isPrivateChat();
    if (chat.getViewType() == BuddyPluginBeta.VIEW_TYPE_DEFAULT || chat.isReadOnly()) {
        GridLayout layout = new GridLayout();
        layout.numColumns = 2;
        layout.marginHeight = 0;
        layout.marginWidth = 0;
        parent.setLayout(layout);
        GridData grid_data = new GridData(GridData.FILL_BOTH);
        Utils.setLayoutData(parent, grid_data);
        Composite sash_area = new Composite(parent, SWT.NONE);
        layout = new GridLayout();
        layout.numColumns = 1;
        layout.marginHeight = 0;
        layout.marginWidth = 0;
        sash_area.setLayout(layout);
        grid_data = new GridData(GridData.FILL_BOTH);
        grid_data.horizontalSpan = 2;
        Utils.setLayoutData(sash_area, grid_data);
        final SashForm sash = new SashForm(sash_area, SWT.HORIZONTAL);
        grid_data = new GridData(GridData.FILL_BOTH);
        Utils.setLayoutData(sash, grid_data);
        final Composite lhs = new Composite(sash, SWT.NONE);
        layout = new GridLayout();
        layout.numColumns = 2;
        layout.marginHeight = 0;
        layout.marginWidth = 0;
        layout.marginTop = 4;
        layout.marginLeft = 4;
        lhs.setLayout(layout);
        grid_data = new GridData(GridData.FILL_BOTH);
        grid_data.widthHint = 300;
        Utils.setLayoutData(lhs, grid_data);
        buildStatus(parent, lhs);
        Composite log_holder = buildFTUX(lhs, SWT.BORDER);
        // LOG panel
        layout = new GridLayout();
        layout.numColumns = 1;
        layout.marginHeight = 0;
        layout.marginWidth = 0;
        layout.marginLeft = 4;
        log_holder.setLayout(layout);
        // grid_data = new GridData(GridData.FILL_BOTH );
        // grid_data.horizontalSpan = 2;
        // Utils.setLayoutData(log_holder, grid_data);
        log = new StyledText(log_holder, SWT.READ_ONLY | SWT.V_SCROLL | SWT.WRAP | SWT.NO_FOCUS);
        grid_data = new GridData(GridData.FILL_BOTH);
        grid_data.horizontalSpan = 1;
        // grid_data.horizontalIndent = 4;
        Utils.setLayoutData(log, grid_data);
        // log.setIndent( 4 );
        log.setEditable(false);
        log_holder.setBackground(log.getBackground());
        final Menu log_menu = new Menu(log);
        log.setMenu(log_menu);
        log.addMenuDetectListener(new MenuDetectListener() {

            @Override
            public void menuDetected(MenuDetectEvent e) {
                e.doit = false;
                boolean handled = false;
                for (MenuItem mi : log_menu.getItems()) {
                    mi.dispose();
                }
                try {
                    Point mapped = log.getDisplay().map(null, log, new Point(e.x, e.y));
                    int offset = log.getOffsetAtLocation(mapped);
                    final StyleRange sr = log.getStyleRangeAtOffset(offset);
                    if (sr != null) {
                        Object data = sr.data;
                        if (data instanceof ChatParticipant) {
                            ChatParticipant cp = (ChatParticipant) data;
                            List<ChatParticipant> cps = new ArrayList<>();
                            cps.add(cp);
                            buildParticipantMenu(log_menu, cps);
                            handled = true;
                        } else if (data instanceof String) {
                            String url_str = (String) sr.data;
                            String str = url_str;
                            if (str.length() > 50) {
                                str = str.substring(0, 50) + "...";
                            }
                            if (chat.isAnonymous() && url_str.toLowerCase(Locale.US).startsWith("magnet:")) {
                                String[] magnet_uri = { url_str };
                                Set<String> networks = UrlUtils.extractNetworks(magnet_uri);
                                String i2p_only_uri = magnet_uri[0] + "&net=" + UrlUtils.encode(AENetworkClassifier.AT_I2P);
                                String i2p_only_str = i2p_only_uri;
                                if (i2p_only_str.length() > 50) {
                                    i2p_only_str = i2p_only_str.substring(0, 50) + "...";
                                }
                                i2p_only_str = lu.getLocalisedMessageText("azbuddy.dchat.open.i2p.magnet") + ": " + i2p_only_str;
                                final MenuItem mi_open_i2p_vuze = new MenuItem(log_menu, SWT.PUSH);
                                mi_open_i2p_vuze.setText(i2p_only_str);
                                mi_open_i2p_vuze.setData(i2p_only_uri);
                                mi_open_i2p_vuze.addSelectionListener(new SelectionAdapter() {

                                    @Override
                                    public void widgetSelected(SelectionEvent e) {
                                        String url_str = (String) mi_open_i2p_vuze.getData();
                                        if (url_str != null) {
                                            TorrentOpener.openTorrent(url_str);
                                        }
                                    }
                                });
                                if (networks.size() == 1 && networks.iterator().next() == AENetworkClassifier.AT_I2P) {
                                // already done above
                                } else {
                                    str = lu.getLocalisedMessageText("azbuddy.dchat.open.magnet") + ": " + str;
                                    final MenuItem mi_open_vuze = new MenuItem(log_menu, SWT.PUSH);
                                    mi_open_vuze.setText(str);
                                    mi_open_vuze.setData(url_str);
                                    mi_open_vuze.addSelectionListener(new SelectionAdapter() {

                                        @Override
                                        public void widgetSelected(SelectionEvent e) {
                                            String url_str = (String) mi_open_vuze.getData();
                                            if (url_str != null) {
                                                TorrentOpener.openTorrent(url_str);
                                            }
                                        }
                                    });
                                }
                            } else {
                                str = lu.getLocalisedMessageText("azbuddy.dchat.open.in.vuze") + ": " + str;
                                final MenuItem mi_open_vuze = new MenuItem(log_menu, SWT.PUSH);
                                mi_open_vuze.setText(str);
                                mi_open_vuze.setData(url_str);
                                mi_open_vuze.addSelectionListener(new SelectionAdapter() {

                                    @Override
                                    public void widgetSelected(SelectionEvent e) {
                                        String url_str = (String) mi_open_vuze.getData();
                                        if (url_str != null) {
                                            String lc_url_str = url_str.toLowerCase(Locale.US);
                                            if (lc_url_str.startsWith("chat:")) {
                                                try {
                                                    beta.handleURI(url_str, true);
                                                } catch (Throwable f) {
                                                    Debug.out(f);
                                                }
                                            } else {
                                                TorrentOpener.openTorrent(url_str);
                                            }
                                        }
                                    }
                                });
                            }
                            final MenuItem mi_open_ext = new MenuItem(log_menu, SWT.PUSH);
                            mi_open_ext.setText(lu.getLocalisedMessageText("azbuddy.dchat.open.in.browser"));
                            mi_open_ext.addSelectionListener(new SelectionAdapter() {

                                @Override
                                public void widgetSelected(SelectionEvent e) {
                                    String url_str = (String) mi_open_ext.getData();
                                    Utils.launch(url_str);
                                }
                            });
                            new MenuItem(log_menu, SWT.SEPARATOR);
                            if (chat.isAnonymous() && url_str.toLowerCase(Locale.US).startsWith("magnet:")) {
                                String[] magnet_uri = { url_str };
                                Set<String> networks = UrlUtils.extractNetworks(magnet_uri);
                                String i2p_only_uri = magnet_uri[0] + "&net=" + UrlUtils.encode(AENetworkClassifier.AT_I2P);
                                final MenuItem mi_copy_i2p_clip = new MenuItem(log_menu, SWT.PUSH);
                                mi_copy_i2p_clip.setText(lu.getLocalisedMessageText("azbuddy.dchat.copy.i2p.magnet"));
                                mi_copy_i2p_clip.setData(i2p_only_uri);
                                mi_copy_i2p_clip.addSelectionListener(new SelectionAdapter() {

                                    @Override
                                    public void widgetSelected(SelectionEvent e) {
                                        String url_str = (String) mi_copy_i2p_clip.getData();
                                        if (url_str != null) {
                                            ClipboardCopy.copyToClipBoard(url_str);
                                        }
                                    }
                                });
                                if (networks.size() == 1 && networks.iterator().next() == AENetworkClassifier.AT_I2P) {
                                // already done above
                                } else {
                                    final MenuItem mi_copy_clip = new MenuItem(log_menu, SWT.PUSH);
                                    mi_copy_clip.setText(lu.getLocalisedMessageText("azbuddy.dchat.copy.magnet"));
                                    mi_copy_clip.setData(url_str);
                                    mi_copy_clip.addSelectionListener(new SelectionAdapter() {

                                        @Override
                                        public void widgetSelected(SelectionEvent e) {
                                            String url_str = (String) mi_copy_clip.getData();
                                            if (url_str != null) {
                                                ClipboardCopy.copyToClipBoard(url_str);
                                            }
                                        }
                                    });
                                }
                            } else {
                                final MenuItem mi_copy_clip = new MenuItem(log_menu, SWT.PUSH);
                                mi_copy_clip.setText(lu.getLocalisedMessageText("label.copy.to.clipboard"));
                                mi_copy_clip.setData(url_str);
                                mi_copy_clip.addSelectionListener(new SelectionAdapter() {

                                    @Override
                                    public void widgetSelected(SelectionEvent e) {
                                        String url_str = (String) mi_copy_clip.getData();
                                        if (url_str != null) {
                                            ClipboardCopy.copyToClipBoard(url_str);
                                        }
                                    }
                                });
                            }
                            if (url_str.toLowerCase().startsWith("http")) {
                                mi_open_ext.setData(url_str);
                                mi_open_ext.setEnabled(true);
                            } else {
                                mi_open_ext.setEnabled(false);
                            }
                            handled = true;
                        } else {
                            if (Constants.isCVSVersion()) {
                                if (sr instanceof MyStyleRange) {
                                    final MyStyleRange msr = (MyStyleRange) sr;
                                    MenuItem item = new MenuItem(log_menu, SWT.NONE);
                                    item.setText(MessageText.getString("label.copy.to.clipboard"));
                                    item.addSelectionListener(new SelectionAdapter() {

                                        @Override
                                        public void widgetSelected(SelectionEvent e) {
                                            ClipboardCopy.copyToClipBoard(msr.message.getMessage());
                                        }
                                    });
                                    handled = true;
                                }
                            }
                        }
                    }
                } catch (Throwable f) {
                }
                if (!handled) {
                    final String text = log.getSelectionText();
                    if (text != null && text.length() > 0) {
                        MenuItem item = new MenuItem(log_menu, SWT.NONE);
                        item.setText(MessageText.getString("label.copy.to.clipboard"));
                        item.addSelectionListener(new SelectionAdapter() {

                            @Override
                            public void widgetSelected(SelectionEvent e) {
                                ClipboardCopy.copyToClipBoard(text);
                            }
                        });
                        handled = true;
                    }
                }
                if (handled) {
                    e.doit = true;
                }
            }
        });
        log.addListener(SWT.MouseDoubleClick, new Listener() {

            @Override
            public void handleEvent(Event e) {
                try {
                    final int offset = log.getOffsetAtLocation(new Point(e.x, e.y));
                    for (int i = 0; i < log_styles.length; i++) {
                        StyleRange sr = log_styles[i];
                        Object data = sr.data;
                        if (data != null && offset >= sr.start && offset < sr.start + sr.length) {
                            boolean anon_chat = chat.isAnonymous();
                            if (data instanceof String) {
                                final String url_str = (String) data;
                                String lc_url_str = url_str.toLowerCase(Locale.US);
                                if (lc_url_str.startsWith("chat:")) {
                                    if (anon_chat && !lc_url_str.startsWith("chat:anon:")) {
                                        return;
                                    }
                                    try {
                                        beta.handleURI(url_str, true);
                                    } catch (Throwable f) {
                                        Debug.out(f);
                                    }
                                } else {
                                    if (anon_chat) {
                                        try {
                                            String host = new URL(lc_url_str).getHost();
                                            if (AENetworkClassifier.categoriseAddress(host) == AENetworkClassifier.AT_PUBLIC) {
                                                return;
                                            }
                                        } catch (Throwable f) {
                                            return;
                                        }
                                    }
                                    if (lc_url_str.contains(".torrent") || UrlUtils.parseTextForMagnets(url_str) != null) {
                                        TorrentOpener.openTorrent(url_str);
                                    } else {
                                        if (url_str.toLowerCase(Locale.US).startsWith("http")) {
                                            // without this backoff we end up with the text widget
                                            // being left in a 'mouse down' state when returning to it :(
                                            Utils.execSWTThreadLater(100, new Runnable() {

                                                @Override
                                                public void run() {
                                                    Utils.launch(url_str);
                                                }
                                            });
                                        } else {
                                            TorrentOpener.openTorrent(url_str);
                                        }
                                    }
                                }
                                log.setSelection(offset);
                                e.doit = false;
                            } else if (data instanceof ChatParticipant) {
                                ChatParticipant participant = (ChatParticipant) data;
                                addNickString(participant);
                            }
                        }
                    }
                } catch (Throwable f) {
                }
            }
        });
        log.addMouseTrackListener(new MouseTrackListener() {

            private StyleRange old_range;

            private StyleRange temp_range;

            private int temp_index;

            @Override
            public void mouseHover(MouseEvent e) {
                boolean active = false;
                try {
                    int offset = log.getOffsetAtLocation(new Point(e.x, e.y));
                    for (int i = 0; i < log_styles.length; i++) {
                        StyleRange sr = log_styles[i];
                        Object data = sr.data;
                        if (data != null && offset >= sr.start && offset < sr.start + sr.length) {
                            if (old_range != null) {
                                if (temp_index < log_styles.length && log_styles[temp_index] == temp_range) {
                                    log_styles[temp_index] = old_range;
                                    old_range = null;
                                }
                            }
                            sr = log_styles[i];
                            String tt_extra = "";
                            if (data instanceof String) {
                                try {
                                    URL url = new URL((String) data);
                                    String query = url.getQuery();
                                    if (query != null) {
                                        String[] bits = query.split("&");
                                        int seeds = -1;
                                        int leechers = -1;
                                        for (String bit : bits) {
                                            String[] temp = bit.split("=");
                                            String lhs = temp[0];
                                            if (lhs.equals("_s")) {
                                                seeds = Integer.parseInt(temp[1]);
                                            } else if (lhs.equals("_l")) {
                                                leechers = Integer.parseInt(temp[1]);
                                            }
                                        }
                                        if (seeds != -1 && leechers != -1) {
                                            tt_extra = ": seeds=" + seeds + ", leechers=" + leechers;
                                        }
                                    }
                                } catch (Throwable f) {
                                }
                            }
                            log.setToolTipText(MessageText.getString("label.right.click.for.options") + tt_extra);
                            StyleRange derp;
                            if (sr instanceof MyStyleRange) {
                                derp = new MyStyleRange((MyStyleRange) sr);
                            } else {
                                derp = new StyleRange(sr);
                            }
                            derp.start = sr.start;
                            derp.length = sr.length;
                            derp.borderStyle = SWT.BORDER_DASH;
                            old_range = sr;
                            temp_range = derp;
                            temp_index = i;
                            log_styles[i] = derp;
                            log.setStyleRanges(log_styles);
                            active = true;
                            break;
                        }
                    }
                } catch (Throwable f) {
                }
                if (!active) {
                    log.setToolTipText("");
                    if (old_range != null) {
                        if (temp_index < log_styles.length && log_styles[temp_index] == temp_range) {
                            log_styles[temp_index] = old_range;
                            old_range = null;
                            log.setStyleRanges(log_styles);
                        }
                    }
                }
            }

            @Override
            public void mouseExit(MouseEvent e) {
            // TODO Auto-generated method stub
            }

            @Override
            public void mouseEnter(MouseEvent e) {
            // TODO Auto-generated method stub
            }
        });
        log.addKeyListener(new KeyAdapter() {

            @Override
            public void keyPressed(KeyEvent event) {
                int key = event.character;
                if (key <= 26 && key > 0) {
                    key += 'a' - 1;
                }
                if (key == 'a' && event.stateMask == SWT.MOD1) {
                    event.doit = false;
                    log.selectAll();
                }
            }
        });
        Composite rhs = new Composite(sash, SWT.NONE);
        layout = new GridLayout();
        layout.numColumns = 1;
        layout.marginHeight = 0;
        layout.marginWidth = 0;
        layout.marginTop = 4;
        layout.marginRight = 4;
        rhs.setLayout(layout);
        grid_data = new GridData(GridData.FILL_VERTICAL);
        int rhs_width = Constants.isWindows ? 150 : 160;
        grid_data.widthHint = rhs_width;
        Utils.setLayoutData(rhs, grid_data);
        // options
        Composite top_right = buildHelp(rhs);
        // nick name
        Composite nick_area = new Composite(top_right, SWT.NONE);
        layout = new GridLayout();
        layout.numColumns = 4;
        layout.marginHeight = 0;
        layout.marginWidth = 0;
        if (!Constants.isWindows) {
            layout.horizontalSpacing = 2;
            layout.verticalSpacing = 2;
        }
        nick_area.setLayout(layout);
        grid_data = new GridData(GridData.FILL_HORIZONTAL);
        grid_data.horizontalSpan = 3;
        Utils.setLayoutData(nick_area, grid_data);
        Label label = new Label(nick_area, SWT.NULL);
        label.setText(lu.getLocalisedMessageText("azbuddy.dchat.nick"));
        grid_data = new GridData();
        // grid_data.horizontalIndent=4;
        Utils.setLayoutData(label, grid_data);
        nickname = new Text(nick_area, SWT.BORDER);
        grid_data = new GridData(GridData.FILL_HORIZONTAL);
        grid_data.horizontalSpan = 1;
        Utils.setLayoutData(nickname, grid_data);
        nickname.setText(chat.getNickname(false));
        nickname.setMessage(chat.getDefaultNickname());
        label = new Label(nick_area, SWT.NULL);
        label.setText(lu.getLocalisedMessageText("label.shared"));
        label.setToolTipText(lu.getLocalisedMessageText("azbuddy.dchat.shared.tooltip"));
        shared_nick_button = new Button(nick_area, SWT.CHECK);
        shared_nick_button.setSelection(chat.isSharedNickname());
        shared_nick_button.addSelectionListener(new SelectionAdapter() {

            @Override
            public void widgetSelected(SelectionEvent arg0) {
                boolean shared = shared_nick_button.getSelection();
                chat.setSharedNickname(shared);
            }
        });
        nickname.addListener(SWT.FocusOut, new Listener() {

            @Override
            public void handleEvent(Event event) {
                String nick = nickname.getText().trim();
                if (chat.isSharedNickname()) {
                    if (chat.getNetwork() == AENetworkClassifier.AT_PUBLIC) {
                        beta.setSharedPublicNickname(nick);
                    } else {
                        beta.setSharedAnonNickname(nick);
                    }
                } else {
                    chat.setInstanceNickname(nick);
                }
            }
        });
        table_header_left = new BufferedLabel(top_right, SWT.DOUBLE_BUFFERED);
        grid_data = new GridData(GridData.FILL_HORIZONTAL);
        grid_data.horizontalSpan = 2;
        if (!Constants.isWindows) {
            grid_data.horizontalIndent = 2;
        }
        Utils.setLayoutData(table_header_left, grid_data);
        table_header_left.setText(MessageText.getString("PeersView.state.pending"));
        LinkLabel link = new LinkLabel(top_right, "Views.plugins.azbuddy.title", new Runnable() {

            @Override
            public void run() {
                if (!plugin.isClassicEnabled()) {
                    plugin.setClassicEnabled(true);
                }
                beta.selectClassicTab();
            }
        });
        // table
        buddy_table = new Table(rhs, SWT.MULTI | SWT.BORDER | SWT.FULL_SELECTION | SWT.VIRTUAL);
        String[] headers = { "azbuddy.ui.table.name" };
        int[] sizes = { rhs_width - 10 };
        int[] aligns = { SWT.LEFT };
        for (int i = 0; i < headers.length; i++) {
            TableColumn tc = new TableColumn(buddy_table, aligns[i]);
            tc.setWidth(Utils.adjustPXForDPI(sizes[i]));
            Messages.setLanguageText(tc, headers[i]);
        }
        buddy_table.setHeaderVisible(true);
        grid_data = new GridData(GridData.FILL_BOTH);
        // grid_data.heightHint = buddy_table.getHeaderHeight() * 3;
        Utils.setLayoutData(buddy_table, grid_data);
        buddy_table.addListener(SWT.SetData, new Listener() {

            @Override
            public void handleEvent(Event event) {
                TableItem item = (TableItem) event.item;
                setItemData(item);
            }
        });
        final Menu menu = new Menu(buddy_table);
        buddy_table.setMenu(menu);
        menu.addMenuListener(new MenuListener() {

            @Override
            public void menuShown(MenuEvent e) {
                MenuItem[] items = menu.getItems();
                for (int i = 0; i < items.length; i++) {
                    items[i].dispose();
                }
                final TableItem[] selection = buddy_table.getSelection();
                List<ChatParticipant> participants = new ArrayList<>(selection.length);
                for (int i = 0; i < selection.length; i++) {
                    TableItem item = selection[i];
                    ChatParticipant participant = (ChatParticipant) item.getData();
                    if (participant == null) {
                        // item data won't be set yet for items that haven't been
                        // visible...
                        participant = setItemData(item);
                    }
                    if (participant != null) {
                        participants.add(participant);
                    }
                }
                buildParticipantMenu(menu, participants);
            }

            @Override
            public void menuHidden(MenuEvent e) {
            }
        });
        buddy_table.addKeyListener(new KeyAdapter() {

            @Override
            public void keyPressed(KeyEvent event) {
                int key = event.character;
                if (key <= 26 && key > 0) {
                    key += 'a' - 1;
                }
                if (key == 'a' && event.stateMask == SWT.MOD1) {
                    event.doit = false;
                    buddy_table.selectAll();
                }
            }
        });
        buddy_table.addMouseListener(new MouseAdapter() {

            @Override
            public void mouseDoubleClick(MouseEvent e) {
                TableItem[] selection = buddy_table.getSelection();
                if (selection.length != 1) {
                    return;
                }
                TableItem item = selection[0];
                ChatParticipant participant = (ChatParticipant) item.getData();
                addNickString(participant);
            }
        });
        Utils.maintainSashPanelWidth(sash, rhs, new int[] { 700, 300 }, "azbuddy.dchat.ui.sash.pos");
        /*
		    Listener sash_listener=
		    	new Listener()
		    	{
		    		private int	lhs_weight;
		    		private int	lhs_width;
	
			    	public void
					handleEvent(
						Event ev )
					{
			    		if ( ev.widget == lhs ){
	
			    			int[] weights = sash.getWeights();
	
	
			    			if ( lhs_weight != weights[0] ){
	
			    					// sash has moved
	
			    				lhs_weight = weights[0];
	
			    					// keep track of the width
	
			    				lhs_width = lhs.getBounds().width;
			    			}
			    		}else{
	
			    				// resize
	
			    			if ( lhs_width > 0 ){
	
					            int width = sash.getClientArea().width;
	
					            double ratio = (double)lhs_width/width;
	
					            lhs_weight = (int)(ratio*1000 );
	
					            sash.setWeights( new int[]{ lhs_weight, 1000 - lhs_weight });
			    			}
			    		}
				    }
			    };
	
		    lhs.addListener(SWT.Resize, sash_listener );
		    sash.addListener(SWT.Resize, sash_listener );
		    */
        // bottom area
        Composite bottom_area = new Composite(parent, SWT.NULL);
        layout = new GridLayout();
        layout.numColumns = 2;
        layout.marginHeight = 0;
        layout.marginWidth = 0;
        bottom_area.setLayout(layout);
        grid_data = new GridData(GridData.FILL_HORIZONTAL);
        grid_data.horizontalSpan = 2;
        bottom_area.setLayoutData(grid_data);
        // Text
        input_area = new Text(bottom_area, SWT.MULTI | SWT.V_SCROLL | SWT.WRAP | SWT.BORDER);
        grid_data = new GridData(GridData.FILL_HORIZONTAL);
        grid_data.horizontalSpan = 1;
        grid_data.heightHint = 30;
        grid_data.horizontalIndent = 4;
        Utils.setLayoutData(input_area, grid_data);
        // input_area.setIndent( 4 );
        input_area.setTextLimit(MAX_MSG_OVERALL_LENGTH);
        input_area.addVerifyListener(new VerifyListener() {

            @Override
            public void verifyText(VerifyEvent ev) {
                if (ev.text.equals("\t")) {
                    ev.doit = false;
                }
            }
        });
        input_area.addKeyListener(new KeyListener() {

            private LinkedList<String> history = new LinkedList<>();

            private int history_pos = -1;

            private String buffered_message = "";

            @Override
            public void keyPressed(KeyEvent e) {
                if (e.keyCode == SWT.CR || e.keyCode == SWT.KEYPAD_CR) {
                    e.doit = false;
                    if ((e.stateMask & SWT.ALT) != 0) {
                        input_area.insert("\n");
                        return;
                    }
                    String message = input_area.getText().trim();
                    if (message.length() > 0) {
                        sendMessage(message, true);
                        history.addFirst(message);
                        if (history.size() > 32) {
                            history.removeLast();
                        }
                        history_pos = -1;
                        buffered_message = "";
                        input_area.setText("");
                        text_cache.put(chat.getNetAndKey(), "");
                    }
                } else if (e.keyCode == SWT.ARROW_UP) {
                    history_pos++;
                    if (history_pos < history.size()) {
                        if (history_pos == 0) {
                            buffered_message = input_area.getText().trim();
                        }
                        String msg = history.get(history_pos);
                        input_area.setText(msg);
                        input_area.setSelection(msg.length());
                    } else {
                        history_pos = history.size() - 1;
                    }
                    e.doit = false;
                } else if (e.keyCode == SWT.ARROW_DOWN) {
                    history_pos--;
                    if (history_pos >= 0) {
                        String msg = history.get(history_pos);
                        input_area.setText(msg);
                        input_area.setSelection(msg.length());
                    } else {
                        if (history_pos == -1) {
                            input_area.setText(buffered_message);
                            if (buffered_message.length() > 0) {
                                input_area.setSelection(buffered_message.length());
                                buffered_message = "";
                            }
                        } else {
                            history_pos = -1;
                        }
                    }
                    e.doit = false;
                } else {
                    if (e.stateMask == SWT.MOD1) {
                        int key = e.character;
                        if (key <= 26 && key > 0) {
                            key += 'a' - 1;
                        }
                        if (key == 'a') {
                            input_area.selectAll();
                        } else if (key == 'b' || key == 'i') {
                            String emp = key == 'b' ? "**" : "*";
                            String sel = input_area.getSelectionText();
                            Point p = input_area.getSelection();
                            while (sel.endsWith(" ")) {
                                sel = sel.substring(0, sel.length() - 1);
                                p.y--;
                            }
                            if (!sel.isEmpty()) {
                                /*
										int[] range = input_area.getSelectionRanges();
										
										int emp_len = emp.length();
										
										if ( sel.startsWith( emp ) && sel.endsWith( emp ) && sel.length() >= emp_len * 2 ){
											
											input_area.replaceTextRange( range[0], range[1], sel.substring(emp_len, sel.length() - emp_len ));
											
											input_area.setSelection( range[0], range[0] + range[1] - emp_len*2 );
											
										}else{
											
											input_area.replaceTextRange( range[0], range[1], emp + sel + emp );
											
											input_area.setSelection( range[0], range[0] + range[1] + emp_len*2 );
										}
										*/
                                int emp_len = emp.length();
                                String text = input_area.getText();
                                if (sel.startsWith(emp) && sel.endsWith(emp) && sel.length() >= emp_len * 2) {
                                    input_area.setText(text.substring(0, p.x) + sel.substring(emp_len, sel.length() - emp_len) + text.substring(p.y));
                                    p.y -= emp_len * 2;
                                } else {
                                    input_area.setText(text.substring(0, p.x) + emp + sel + emp + text.substring(p.y));
                                    p.y += emp_len * 2;
                                }
                                input_area.setSelection(p);
                            }
                        }
                    }
                }
            }

            @Override
            public void keyReleased(KeyEvent e) {
            }
        });
        input_area.addDisposeListener(new DisposeListener() {

            @Override
            public void widgetDisposed(DisposeEvent arg0) {
                if (input_area != null) {
                    String text = input_area.getText();
                    text_cache.put(chat.getNetAndKey(), text);
                }
            }
        });
        String cached_text = text_cache.get(chat.getNetAndKey());
        if (cached_text != null && !cached_text.isEmpty()) {
            input_area.setText(cached_text);
            input_area.setSelection(cached_text.length());
        }
        Composite button_area = new Composite(bottom_area, SWT.NULL);
        layout = new GridLayout();
        layout.numColumns = 1;
        layout.marginHeight = 0;
        layout.marginWidth = 0;
        layout.marginRight = 4;
        button_area.setLayout(layout);
        buildRSSButton(button_area);
        hookFTUXListener();
        if (chat.isReadOnly()) {
            input_area.setText(MessageText.getString("azbuddy.dchat.ro"));
        }
        setInputAvailability(true);
        if (!chat.isReadOnly()) {
            drop_targets = new DropTarget[] { new DropTarget(log, DND.DROP_COPY), new DropTarget(input_area, DND.DROP_COPY) };
            for (DropTarget drop_target : drop_targets) {
                drop_target.setTransfer(new Transfer[] { FixedURLTransfer.getInstance(), FileTransfer.getInstance(), TextTransfer.getInstance() });
                drop_target.addDropListener(new DropTargetAdapter() {

                    @Override
                    public void dropAccept(DropTargetEvent event) {
                        event.currentDataType = FixedURLTransfer.pickBestType(event.dataTypes, event.currentDataType);
                    }

                    @Override
                    public void dragEnter(DropTargetEvent event) {
                    }

                    @Override
                    public void dragOperationChanged(DropTargetEvent event) {
                    }

                    @Override
                    public void dragOver(DropTargetEvent event) {
                        if ((event.operations & DND.DROP_LINK) > 0)
                            event.detail = DND.DROP_LINK;
                        else if ((event.operations & DND.DROP_COPY) > 0)
                            event.detail = DND.DROP_COPY;
                        else if ((event.operations & DND.DROP_DEFAULT) > 0)
                            event.detail = DND.DROP_COPY;
                        event.feedback = DND.FEEDBACK_SELECT | DND.FEEDBACK_SCROLL | DND.FEEDBACK_EXPAND;
                    }

                    @Override
                    public void dragLeave(DropTargetEvent event) {
                    }

                    @Override
                    public void drop(DropTargetEvent event) {
                        handleDrop(event.data, new DropAccepter() {

                            @Override
                            public void accept(String link) {
                                input_area.setText(input_area.getText() + link);
                            }
                        });
                    }
                });
            }
        }
        Control[] focus_controls = { log, input_area, buddy_table, nickname, shared_nick_button };
        Listener focus_listener = new Listener() {

            @Override
            public void handleEvent(Event event) {
                activate();
            }
        };
        for (Control c : focus_controls) {
            c.addListener(SWT.FocusIn, focus_listener);
        }
        BuddyPluginBeta.ChatParticipant[] existing_participants = chat.getParticipants();
        synchronized (participants) {
            participants.addAll(Arrays.asList(existing_participants));
        }
        table_resort_required = true;
        updateTable(false);
        BuddyPluginBeta.ChatMessage[] history = chat.getHistory();
        logChatMessages(history);
        boolean can_popout = shell == null && public_chat;
        if (can_popout && !ftux_ok && !auto_ftux_popout_done) {
            auto_ftux_popout_done = true;
            try {
                createChatWindow(view, plugin, chat.getClone(), true);
            } catch (Throwable e) {
            }
        }
    } else {
        GridLayout layout = new GridLayout();
        layout.numColumns = 2;
        layout.marginHeight = 0;
        layout.marginWidth = 0;
        parent.setLayout(layout);
        GridData grid_data = new GridData(GridData.FILL_BOTH);
        Utils.setLayoutData(parent, grid_data);
        Composite status_area = new Composite(parent, SWT.NULL);
        grid_data = new GridData(GridData.FILL_HORIZONTAL);
        status_area.setLayoutData(grid_data);
        layout = new GridLayout();
        layout.numColumns = 3;
        layout.marginHeight = 0;
        layout.marginWidth = 0;
        layout.marginTop = 4;
        layout.marginLeft = 4;
        status_area.setLayout(layout);
        buildStatus(parent, status_area);
        buildHelp(status_area);
        Composite ftux_parent = new Composite(parent, SWT.NULL);
        layout = new GridLayout();
        layout.numColumns = 2;
        layout.marginHeight = 0;
        layout.marginWidth = 0;
        ftux_parent.setLayout(layout);
        grid_data = new GridData(GridData.FILL_BOTH);
        grid_data.horizontalSpan = 2;
        ftux_parent.setLayoutData(grid_data);
        Composite share_area_holder = buildFTUX(ftux_parent, SWT.NULL);
        layout = new GridLayout();
        layout.numColumns = 1;
        layout.marginHeight = 0;
        layout.marginWidth = 0;
        share_area_holder.setLayout(layout);
        Canvas share_area = new Canvas(share_area_holder, SWT.NO_BACKGROUND);
        grid_data = new GridData(GridData.FILL_BOTH);
        share_area.setLayoutData(grid_data);
        share_area.setBackground(Colors.white);
        share_area.addPaintListener(new PaintListener() {

            @Override
            public void paintControl(PaintEvent e) {
                GC gc = e.gc;
                gc.setAdvanced(true);
                gc.setAntialias(SWT.ON);
                Rectangle bounds = share_area.getBounds();
                int width = bounds.width;
                int height = bounds.height;
                gc.setBackground(Colors.white);
                gc.fillRectangle(0, 0, width, height);
                Rectangle text_area = new Rectangle(50, 50, width - 100, height - 100);
                gc.setLineWidth(8);
                gc.setLineStyle(SWT.LINE_DOT);
                gc.setForeground(Colors.light_grey);
                gc.drawRoundRectangle(40, 40, width - 80, height - 80, 25, 25);
                gc.setForeground(Colors.dark_grey);
                gc.setFont(big_font);
                String msg = MessageText.getString("dchat.share.dnd.info", new String[] { MessageText.getString(chat.getNetwork() == AENetworkClassifier.AT_PUBLIC ? "label.publicly" : "label.anonymously"), chat.getName() });
                GCStringPrinter p = new GCStringPrinter(gc, msg, text_area, 0, SWT.CENTER | SWT.WRAP);
                p.printString();
            }
        });
        input_area = new Text(share_area, SWT.MULTI | SWT.V_SCROLL | SWT.WRAP | SWT.BORDER);
        input_area.setVisible(false);
        hookFTUXListener();
        drop_targets = new DropTarget[] { new DropTarget(share_area, DND.DROP_COPY) };
        for (DropTarget drop_target : drop_targets) {
            drop_target.setTransfer(new Transfer[] { FixedURLTransfer.getInstance(), FileTransfer.getInstance(), TextTransfer.getInstance() });
            drop_target.addDropListener(new DropTargetAdapter() {

                @Override
                public void dropAccept(DropTargetEvent event) {
                    event.currentDataType = FixedURLTransfer.pickBestType(event.dataTypes, event.currentDataType);
                }

                @Override
                public void dragEnter(DropTargetEvent event) {
                }

                @Override
                public void dragOperationChanged(DropTargetEvent event) {
                }

                @Override
                public void dragOver(DropTargetEvent event) {
                    if ((event.operations & DND.DROP_LINK) > 0)
                        event.detail = DND.DROP_LINK;
                    else if ((event.operations & DND.DROP_COPY) > 0)
                        event.detail = DND.DROP_COPY;
                    else if ((event.operations & DND.DROP_DEFAULT) > 0)
                        event.detail = DND.DROP_COPY;
                    event.feedback = DND.FEEDBACK_SELECT | DND.FEEDBACK_SCROLL | DND.FEEDBACK_EXPAND;
                }

                @Override
                public void dragLeave(DropTargetEvent event) {
                }

                @Override
                public void drop(DropTargetEvent event) {
                    if (!chat_available) {
                        MessageBoxShell mb = new MessageBoxShell(MessageText.getString("dchat.share.dnd.wait.title"), MessageText.getString("dchat.share.dnd.wait.text"));
                        mb.setButtons(0, new String[] { MessageText.getString("Button.ok") }, new Integer[] { 0 });
                        mb.open(null);
                        return;
                    }
                    MessageBoxShell mb = new MessageBoxShell(MessageText.getString("dchat.share.dnd.prompt.title"), MessageText.getString("dchat.share.dnd.prompt.text", new String[] { MessageText.getString(chat.getNetwork() == AENetworkClassifier.AT_PUBLIC ? "label.publicly" : "label.anonymously"), chat.getName() }));
                    mb.setRemember("chat.dnd." + chat.getKey(), false, MessageText.getString("MessageBoxWindow.nomoreprompting"));
                    mb.setButtons(0, new String[] { MessageText.getString("Button.yes"), MessageText.getString("Button.no") }, new Integer[] { 0, 1 });
                    mb.setRememberOnlyIfButton(0);
                    mb.open(new UserPrompterResultListener() {

                        @Override
                        public void prompterClosed(int result) {
                            if (result == 0) {
                                handleDrop(event.data, new DropAccepter() {

                                    @Override
                                    public void accept(String link) {
                                        link = link.trim();
                                        sendMessage(link, false);
                                        String rendered = renderMessage(link);
                                        MessageBoxShell mb = new MessageBoxShell(MessageText.getString("dchat.share.dnd.shared.title"), MessageText.getString("dchat.share.dnd.shared.text", new String[] { rendered }));
                                        mb.setButtons(0, new String[] { MessageText.getString("Button.ok") }, new Integer[] { 0 });
                                        mb.open(null);
                                        checkSubscriptions(false);
                                    }
                                });
                            }
                        }
                    });
                }
            });
        }
    }
}
Also used : GCStringPrinter(com.biglybt.ui.swt.shells.GCStringPrinter) MouseTrackListener(org.eclipse.swt.events.MouseTrackListener) KeyAdapter(org.eclipse.swt.events.KeyAdapter) TableItem(org.eclipse.swt.widgets.TableItem) BufferedLabel(com.biglybt.ui.swt.components.BufferedLabel) Label(org.eclipse.swt.widgets.Label) LinkLabel(com.biglybt.ui.swt.components.LinkLabel) Rectangle(org.eclipse.swt.graphics.Rectangle) DisposeEvent(org.eclipse.swt.events.DisposeEvent) Button(org.eclipse.swt.widgets.Button) SelectionEvent(org.eclipse.swt.events.SelectionEvent) StyledText(org.eclipse.swt.custom.StyledText) VerifyListener(org.eclipse.swt.events.VerifyListener) PaintListener(org.eclipse.swt.events.PaintListener) Canvas(org.eclipse.swt.widgets.Canvas) DropTargetEvent(org.eclipse.swt.dnd.DropTargetEvent) TableColumn(org.eclipse.swt.widgets.TableColumn) DropTargetAdapter(org.eclipse.swt.dnd.DropTargetAdapter) MenuDetectEvent(org.eclipse.swt.events.MenuDetectEvent) DropTarget(org.eclipse.swt.dnd.DropTarget) DisposeListener(org.eclipse.swt.events.DisposeListener) UserPrompterResultListener(com.biglybt.ui.UserPrompterResultListener) PaintListener(org.eclipse.swt.events.PaintListener) ControlListener(org.eclipse.swt.events.ControlListener) Listener(org.eclipse.swt.widgets.Listener) UIInputReceiverListener(com.biglybt.pif.ui.UIInputReceiverListener) DisposeListener(org.eclipse.swt.events.DisposeListener) VerifyListener(org.eclipse.swt.events.VerifyListener) MouseTrackListener(org.eclipse.swt.events.MouseTrackListener) MenuListener(org.eclipse.swt.events.MenuListener) MenuDetectListener(org.eclipse.swt.events.MenuDetectListener) KeyListener(org.eclipse.swt.events.KeyListener) BufferedLabel(com.biglybt.ui.swt.components.BufferedLabel) MenuListener(org.eclipse.swt.events.MenuListener) StyleRange(org.eclipse.swt.custom.StyleRange) URL(java.net.URL) KeyEvent(org.eclipse.swt.events.KeyEvent) GridLayout(org.eclipse.swt.layout.GridLayout) Control(org.eclipse.swt.widgets.Control) Menu(org.eclipse.swt.widgets.Menu) GC(org.eclipse.swt.graphics.GC) VerifyEvent(org.eclipse.swt.events.VerifyEvent) MenuEvent(org.eclipse.swt.events.MenuEvent) MouseEvent(org.eclipse.swt.events.MouseEvent) Table(org.eclipse.swt.widgets.Table) PaintEvent(org.eclipse.swt.events.PaintEvent) Composite(org.eclipse.swt.widgets.Composite) SelectionAdapter(org.eclipse.swt.events.SelectionAdapter) MouseAdapter(org.eclipse.swt.events.MouseAdapter) MessageBoxShell(com.biglybt.ui.swt.shells.MessageBoxShell) MenuItem(org.eclipse.swt.widgets.MenuItem) StyledText(org.eclipse.swt.custom.StyledText) Text(org.eclipse.swt.widgets.Text) MessageText(com.biglybt.core.internat.MessageText) Point(org.eclipse.swt.graphics.Point) Point(org.eclipse.swt.graphics.Point) SashForm(org.eclipse.swt.custom.SashForm) UserPrompterResultListener(com.biglybt.ui.UserPrompterResultListener) LinkLabel(com.biglybt.ui.swt.components.LinkLabel) AERunnable(com.biglybt.core.util.AERunnable) GridData(org.eclipse.swt.layout.GridData) MenuDetectListener(org.eclipse.swt.events.MenuDetectListener) DropTargetEvent(org.eclipse.swt.dnd.DropTargetEvent) MenuEvent(org.eclipse.swt.events.MenuEvent) KeyEvent(org.eclipse.swt.events.KeyEvent) MouseEvent(org.eclipse.swt.events.MouseEvent) MenuDetectEvent(org.eclipse.swt.events.MenuDetectEvent) ControlEvent(org.eclipse.swt.events.ControlEvent) DisposeEvent(org.eclipse.swt.events.DisposeEvent) PaintEvent(org.eclipse.swt.events.PaintEvent) UIManagerEvent(com.biglybt.pif.ui.UIManagerEvent) Event(org.eclipse.swt.widgets.Event) VerifyEvent(org.eclipse.swt.events.VerifyEvent) SelectionEvent(org.eclipse.swt.events.SelectionEvent) KeyListener(org.eclipse.swt.events.KeyListener)

Example 63 with DropTarget

use of org.eclipse.swt.dnd.DropTarget in project webtools.sourceediting by eclipse.

the class ConfigurableContentOutlinePage method createControl.

/**
 * @see ContentOutlinePage#createControl
 */
public void createControl(Composite parent) {
    super.createControl(parent);
    getTreeViewer().setUseHashlookup(true);
    ColumnViewerToolTipSupport.enableFor(getTreeViewer());
    IWorkbenchPage page = getSite().getWorkbenchWindow().getActivePage();
    if (page != null) {
        fEditor = page.getActiveEditor();
    }
    fDragAdapter = new DelegatingDragAdapter();
    fDragSource = new DragSource(getControl(), DND.DROP_COPY | DND.DROP_MOVE);
    fDropAdapter = new DelegatingDropAdapter();
    fDropTarget = new DropTarget(getControl(), DND.DROP_COPY | DND.DROP_MOVE);
    setConfiguration(getConfiguration());
    /*
		 * ContentOutlinePage only implements ISelectionProvider while the
		 * tree viewer implements both ISelectionProvider and
		 * IPostSelectionProvider. Use an ISelectionProvider that listens to
		 * post selection from the tree viewer and forward only post selection
		 * to the selection service.
		 */
    getTreeViewer().addPostSelectionChangedListener(fSelectionProvider.getPostSelectionChangedListener());
    getTreeViewer().addSelectionChangedListener(fSelectionProvider.getSelectionChangedListener());
    if (fDoubleClickProvider == null) {
        fDoubleClickProvider = new DoubleClickProvider();
    }
    getTreeViewer().addDoubleClickListener(fDoubleClickProvider);
    getSite().setSelectionProvider(fSelectionProvider);
}
Also used : DelegatingDropAdapter(org.eclipse.jface.util.DelegatingDropAdapter) IWorkbenchPage(org.eclipse.ui.IWorkbenchPage) DelegatingDragAdapter(org.eclipse.jface.util.DelegatingDragAdapter) DragSource(org.eclipse.swt.dnd.DragSource) DropTarget(org.eclipse.swt.dnd.DropTarget)

Example 64 with DropTarget

use of org.eclipse.swt.dnd.DropTarget in project webtools.sourceediting by eclipse.

the class StructuredTextEditor method initializeDrop.

protected void initializeDrop(ITextViewer textViewer) {
    int operations = DND.DROP_COPY | DND.DROP_MOVE;
    fDropTarget = new DropTarget(textViewer.getTextWidget(), operations);
    fDropAdapter = new ReadOnlyAwareDropTargetAdapter(true);
    fDropAdapter.setTargetEditor(this);
    fDropAdapter.setTargetIDs(getConfigurationPoints());
    fDropAdapter.setTextViewer(textViewer);
    fDropTarget.setTransfer(fDropAdapter.getTransfers());
    fDropTarget.addDropListener(fDropAdapter);
    fDropTarget.addDisposeListener(new DisposeListener() {

        public void widgetDisposed(DisposeEvent e) {
            fDropTarget.removeDropListener(fDropAdapter);
            fDropTarget.removeDisposeListener(this);
            fDropTarget.dispose();
        }
    });
}
Also used : DisposeListener(org.eclipse.swt.events.DisposeListener) ReadOnlyAwareDropTargetAdapter(org.eclipse.wst.sse.ui.internal.ReadOnlyAwareDropTargetAdapter) DropTarget(org.eclipse.swt.dnd.DropTarget) DisposeEvent(org.eclipse.swt.events.DisposeEvent) Point(org.eclipse.swt.graphics.Point)

Example 65 with DropTarget

use of org.eclipse.swt.dnd.DropTarget in project org.csstudio.display.builder by kasemir.

the class DataBrowserEditor method hookDragAndDrop.

/**
 * Allow 'drop' of PV name, archive, ..
 *  @param canvas FXCanvas
 */
private void hookDragAndDrop(final Control canvas) {
    // CS-Studio uses the ControlSystemDragSource
    // and ControlSystemDropTarget to transfer its own
    // data types, using the SWT drag-and-drop API
    // plus some class loader hacking to de-serialize
    // types from other plugins.
    // 
    // The JavaFX plot is inside an FXCanvas.
    // The FXCanvas establishes an SWT DropTarget
    // to forward drops from SWT to the hosted JavaFX scene.
    // 
    // Issues:
    // The FXCanvas only reliably forwards standard transfers
    // (string, ..), and not custom data types.
    // SWT generally doesn't allow multiple drop targets.
    // 
    // Option 1)
    // Use the JavaFX drop API on the plot, and parse the received strings.
    // -> Don't want to parse possibly arbitrary strings.
    // 
    // Option 2)
    // Change the ControlSystemDropTarget to use
    // getSite().getService(IDragAndDropService.class).addMergedDropTarget(..)
    // https://bugs.eclipse.org/bugs/show_bug.cgi?id=162192
    // This would allow 'adding' another DropTarget,
    // but requires changes to the ControlSystemDropTarget,
    // would only work in RCP, not plain SWT.
    // Who then receives the drop events would depend on the order
    // in which drop targets are added and which transfers they use.
    // 
    // Option 3)
    // Hack around the SWT limitation by fetching
    // the FXCanva's DropTarget via
    // control.getData(DND.DROP_TARGET_KEY);
    // and disposing it.
    // Checking the source code for the SWT DropTarget
    // on Windows, Mac and Linux for SWT 3.104,
    // this detaches the DropTarget and allows us
    // to add our own.
    final DropTarget old = (DropTarget) canvas.getData(DND.DROP_TARGET_KEY);
    if (old != null)
        old.dispose();
    if (canvas.getData(DND.DROP_TARGET_KEY) != null)
        throw new IllegalStateException("Cannot remove FXCanvas's DropTarget");
    // Allow dropped arrays
    new ControlSystemDropTarget(canvas, ChannelInfo[].class, ProcessVariable[].class, ArchiveDataSource[].class, File.class, String.class) {

        @Override
        public void handleDrop(final Object item) {
            final PlotListener lst = plot.getListener();
            if (lst == null)
                return;
            if (item instanceof ChannelInfo[]) {
                final ChannelInfo[] channels = (ChannelInfo[]) item;
                final int N = channels.length;
                final ProcessVariable[] pvs = new ProcessVariable[N];
                final ArchiveDataSource[] archives = new ArchiveDataSource[N];
                for (int i = 0; i < N; ++i) {
                    pvs[i] = channels[i].getProcessVariable();
                    archives[i] = channels[i].getArchiveDataSource();
                }
                lst.droppedPVNames(pvs, archives);
            } else if (item instanceof ProcessVariable[]) {
                final ProcessVariable[] pvs = (ProcessVariable[]) item;
                lst.droppedPVNames(pvs, null);
            } else if (item instanceof ArchiveDataSource[]) {
                final ArchiveDataSource[] archives = (ArchiveDataSource[]) item;
                lst.droppedPVNames(null, archives);
            } else if (item instanceof String) {
                final List<String> pvs = new ArrayList<>();
                // Allow passing in many names, assuming that white space separates them
                // $NON-NLS-1$
                final String[] names = ((String) item).split("[\\r\\n\\t ]+");
                for (String one_name : names) {
                    // Might also have received "[pv1, pv2, pv2]", turn that into "pv1", "pv2", "pv3"
                    String suggestion = one_name;
                    if (suggestion.startsWith("["))
                        suggestion = suggestion.substring(1);
                    if (suggestion.endsWith("]") && !suggestion.contains("["))
                        suggestion = suggestion.substring(0, suggestion.length() - 1);
                    if (suggestion.endsWith(","))
                        suggestion = suggestion.substring(0, suggestion.length() - 1);
                    pvs.add(suggestion);
                }
                if (pvs.size() > 0)
                    lst.droppedNames(pvs.toArray(new String[pvs.size()]));
            } else if (item instanceof String[]) {
                // File names arrive as String[]...
                final String[] files = (String[]) item;
                try {
                    for (String filename : files) lst.droppedFilename(filename);
                } catch (Exception ex) {
                    ExceptionDetailsErrorDialog.openError(canvas.getShell(), Messages.Error, ex);
                }
            }
        }
    };
}
Also used : PlotListener(org.csstudio.trends.databrowser3.ui.PlotListener) ProcessVariable(org.csstudio.csdata.ProcessVariable) ArchiveDataSource(org.csstudio.trends.databrowser3.model.ArchiveDataSource) ChannelInfo(org.csstudio.trends.databrowser3.model.ChannelInfo) ControlSystemDropTarget(org.csstudio.ui.util.dnd.ControlSystemDropTarget) PartInitException(org.eclipse.ui.PartInitException) List(java.util.List) ArrayList(java.util.ArrayList) ControlSystemDropTarget(org.csstudio.ui.util.dnd.ControlSystemDropTarget) DropTarget(org.eclipse.swt.dnd.DropTarget)

Aggregations

DropTarget (org.eclipse.swt.dnd.DropTarget)85 DropTargetEvent (org.eclipse.swt.dnd.DropTargetEvent)46 DropTargetAdapter (org.eclipse.swt.dnd.DropTargetAdapter)27 DropTargetListener (org.eclipse.swt.dnd.DropTargetListener)24 Transfer (org.eclipse.swt.dnd.Transfer)21 GridData (org.eclipse.swt.layout.GridData)17 Composite (org.eclipse.swt.widgets.Composite)17 SelectionEvent (org.eclipse.swt.events.SelectionEvent)15 Point (org.eclipse.swt.graphics.Point)15 GridLayout (org.eclipse.swt.layout.GridLayout)15 SelectionAdapter (org.eclipse.swt.events.SelectionAdapter)13 Button (org.eclipse.swt.widgets.Button)13 Label (org.eclipse.swt.widgets.Label)13 DragSource (org.eclipse.swt.dnd.DragSource)11 ArrayList (java.util.ArrayList)10 List (java.util.List)10 TextTransfer (org.eclipse.swt.dnd.TextTransfer)10 Control (org.eclipse.swt.widgets.Control)10 TreeItem (org.eclipse.swt.widgets.TreeItem)10 DragSourceEvent (org.eclipse.swt.dnd.DragSourceEvent)9