Examples with ListView org.apache.pivot.wtk.ListView used on opensource projects

Example 1 with ListView

use of org.apache.pivot.wtk.ListView in project pivot by apache.

the class Pivot811 method startup.

@Override
public void startup(final Display displayArgument, Map<String, String> properties) throws Exception {
    this.display = displayArgument;
    Frame listFrame = new Frame();
    listFrame.setTitle("List Frame");
    listFrame.setPreferredSize(400, 300);
    listFrame.setLocation(20, 20);
    listFrame.getStyles().put(Style.padding, Insets.NONE);
    BoxPane boxPane = new BoxPane();
    boxPane.getStyles().put(Style.fill, true);
    boxPane.setOrientation(Orientation.VERTICAL);
    listFrame.setContent(boxPane);
    Label infoLabel = new Label("Double click on a list item to open a detail frame");
    boxPane.add(infoLabel);
    ScrollPane scrollPane = new ScrollPane();
    scrollPane.setHorizontalScrollBarPolicy(ScrollBarPolicy.FILL);
    scrollPane.setVerticalScrollBarPolicy(ScrollBarPolicy.FILL_TO_CAPACITY);
    // workaround for pivot-738,
    scrollPane.setRepaintAllViewport(true);
    // needed only in in some cases
    boxPane.add(scrollPane);
    final ListView listView = new ListView();
    List<String> listData = new ArrayList<>();
    for (int i = 0; i < 50; ++i) {
        listData.add("List Item " + i);
    }
    listView.setListData(listData);
    scrollPane.setView(listView);
    listView.getListViewSelectionListeners().add(new ListViewSelectionListener() {

        @Override
        public void selectedItemChanged(ListView listViewArgument, Object previousSelectedItem) {
            System.out.println("selectedItemChanged : " + listViewArgument.getSelectedItem());
        }
    });
    listView.getComponentMouseButtonListeners().add(new ComponentMouseButtonListener() {

        @Override
        public boolean mouseClick(Component component, Mouse.Button button, int x, int y, int count) {
            System.out.println("mouseClick : " + count);
            if (count == 2) {
                System.out.println("double click, now open a detail frame");
                Frame detailFrame = new Frame();
                detailFrame.setTitle("Detail Frame");
                detailFrame.setPreferredSize(400, 300);
                int selectedIndex = listView.getSelectedIndex();
                detailFrame.setLocation(80 + (selectedIndex * 10), 80 + (selectedIndex * 10));
                detailFrame.getStyles().put(Style.padding, Insets.NONE);
                BoxPane boxPaneLocal = new BoxPane();
                boxPaneLocal.getStyles().put(Style.fill, true);
                boxPaneLocal.setOrientation(Orientation.VERTICAL);
                detailFrame.setContent(boxPaneLocal);
                String selectedItem = listView.getSelectedItem().toString();
                Label label = new Label("Selected Item is \"" + selectedItem + "\"");
                boxPaneLocal.add(label);
                // spacer
                boxPaneLocal.add(new Label(""));
                boxPaneLocal.add(new Label("Click inside the text input to focus it"));
                TextInput textInput = new TextInput();
                textInput.setText("Focusable component");
                // workaround for pivot-811:
                boxPaneLocal.add(textInput);
                // add a focusable element
                // inside the frame
                detailFrame.open(displayArgument);
                // workaround for pivot-811: force the focus on the first
                // focusable element inside the frame
                detailFrame.requestFocus();
            // textInput.requestFocus(); // or use this ...
            }
            return true;
        }
    });
    listFrame.open(displayArgument);
    listView.setSelectedIndex(0);
    listView.requestFocus();
}

Example 2 with ListView

use of org.apache.pivot.wtk.ListView in project pivot by apache.

the class FileBrowsing method initialize.

@Override
public void initialize(Map<String, Object> namespace, URL location, Resources resources) {
    openSheetButton.getButtonPressListeners().add(new ButtonPressListener() {

        @Override
        public void buttonPressed(Button button) {
            Button selection = fileBrowserSheetModeGroup.getSelection();
            String mode = (String) selection.getUserData().get("mode");
            FileBrowserSheet.Mode fileBrowserSheetMode = FileBrowserSheet.Mode.valueOf(mode.toUpperCase());
            final FileBrowserSheet fileBrowserSheet = new FileBrowserSheet();
            if (fileBrowserSheetMode == FileBrowserSheet.Mode.SAVE_AS) {
                fileBrowserSheet.setSelectedFile(new File(fileBrowserSheet.getRootDirectory(), "New File"));
            }
            fileBrowserSheet.setMode(fileBrowserSheetMode);
            fileBrowserSheet.open(FileBrowsing.this, new SheetCloseListener() {

                @Override
                public void sheetClosed(Sheet sheet) {
                    if (sheet.getResult()) {
                        Sequence<File> selectedFiles = fileBrowserSheet.getSelectedFiles();
                        ListView listView = new ListView();
                        listView.setListData(new ArrayList<>(selectedFiles));
                        listView.setSelectMode(ListView.SelectMode.NONE);
                        listView.getStyles().put(Style.backgroundColor, null);
                        Alert.alert(MessageType.INFO, "You selected:", listView, FileBrowsing.this);
                    } else {
                        Alert.alert(MessageType.INFO, "You didn't select anything.", FileBrowsing.this);
                    }
                }
            });
        }
    });
}

Example 3 with ListView

use of org.apache.pivot.wtk.ListView in project pivot by apache.

the class ListViews method initialize.

@Override
public void initialize(Map<String, Object> namespace, URL location, Resources resources) {
    selectionLabel = (Label) namespace.get("selectionLabel");
    listView = (ListView) namespace.get("listView");
    listView.getListViewSelectionListeners().add(new ListViewSelectionListener() {

        @Override
        public void selectedRangeAdded(ListView listViewArgument, int rangeStart, int rangeEnd) {
            updateSelection(listViewArgument);
        }

        @Override
        public void selectedRangeRemoved(ListView listViewArgument, int rangeStart, int rangeEnd) {
            updateSelection(listViewArgument);
        }

        @Override
        public void selectedRangesChanged(ListView listViewArgument, Sequence<Span> previousSelectedRanges) {
            if (previousSelectedRanges != null && previousSelectedRanges != listViewArgument.getSelectedRanges()) {
                updateSelection(listViewArgument);
            }
        }

        @Override
        public void selectedItemChanged(ListView listViewArgument, Object previousSelectedItem) {
        // No-op
        }

        private void updateSelection(ListView listViewArgument) {
            // TODO: in future use StringBuffer instead ...
            String selectionText = "";
            Sequence<Span> selectedRanges = listViewArgument.getSelectedRanges();
            for (int i = 0, n = selectedRanges.getLength(); i < n; i++) {
                Span selectedRange = selectedRanges.get(i);
                for (int j = selectedRange.start; j <= selectedRange.end; j++) {
                    if (selectionText.length() > 0) {
                        selectionText += ", ";
                    }
                    Object item = listViewArgument.getListData().get(j);
                    String text;
                    if (item instanceof ListItem) {
                        // item is a listItem
                        // (for example because
                        // it has an image)
                        text = ((ListItem) item).getText();
                    } else {
                        // item is a standard item for listData
                        text = item.toString();
                    }
                    selectionText += text;
                }
            }
            selectionLabel.setText(selectionText);
        }
    });
}

Example 4 with ListView

use of org.apache.pivot.wtk.ListView in project pivot by apache.

the class TextPaneDemo method startup.

@Override
public void startup(Display display, Map<String, String> properties) throws Exception {
    System.out.println("startup(...)");
    System.out.println("\n" + "In this test application as a sample for setting the display scale on startup, use startup argument \"--scale=n\" property; \n" + "for instance, using \"--scale=2.0\" will set double scale on the whole application.\n" + "\n" + "Anyway, using Ctrl-Shift-MouseWheel will scale the display up and down as well, for the user of your application.\n");
    BXMLSerializer bxmlSerializer = new BXMLSerializer();
    window = (Window) bxmlSerializer.readObject(TextPaneDemo.class, "text_pane_demo.bxml");
    bxmlSerializer.bind(this, TextPaneDemo.class);
    window.setTitle("Apache Pivot Rich Text Editor Demo");
    // make the text on the "bold" button bold
    Font boldButtonFont = boldButton.getStyles().getFont(Style.font);
    boldButton.getStyles().put(Style.font, boldButtonFont.deriveFont(Font.BOLD));
    // make the text on the "italic" button italic
    Font italicButtonFont = italicButton.getStyles().getFont(Style.font);
    italicButton.getStyles().put(Style.font, italicButtonFont.deriveFont(Font.ITALIC));
    fontFamilyListButton.setListData(new ArrayList<>(GraphicsEnvironment.getLocalGraphicsEnvironment().getAvailableFontFamilyNames()));
    fontSizeListButton.setSelectedItem(fontFamilyListButton.getListData().get(0));
    fontFamilyListButton.setItemRenderer(new ListViewItemRenderer() {

        @Override
        public void render(Object item, int index, ListView listView, boolean selected, Button.State state, boolean highlighted, boolean disabled) {
            super.render(item, index, listView, selected, state, highlighted, disabled);
            if (item != null) {
                String fontFamilyName = (String) item;
                label.getStyles().put(Style.font, Font.decode(fontFamilyName + "-12"));
            }
        }
    });
    fontFamilyListButton.setDataRenderer(new ListButtonDataRenderer() {

        @Override
        public void render(Object data, Button button, boolean highlight) {
            super.render(data, button, highlight);
            if (data != null) {
                String fontFamilyName = (String) data;
                label.getStyles().put(Style.font, Font.decode(fontFamilyName + "-12"));
            }
        }
    });
    fontSizeListButton.setListData(new NumericSpinnerData(12, 30, 1));
    fontSizeListButton.setSelectedItem(12);
    openFileButton.getButtonPressListeners().add(new ButtonPressListener() {

        @Override
        public void buttonPressed(Button button) {
            final FileBrowserSheet fileBrowserSheet = new FileBrowserSheet();
            fileBrowserSheet.setMode(FileBrowserSheet.Mode.OPEN);
            fileBrowserSheet.open(window, new SheetCloseListener() {

                @Override
                public void sheetClosed(Sheet sheet) {
                    if (sheet.getResult()) {
                        loadedFile = fileBrowserSheet.getSelectedFile();
                        try {
                            BufferedReader reader = new BufferedReader(new FileReader(loadedFile));
                            PlainTextSerializer serializer = new PlainTextSerializer();
                            textPane.setDocument(serializer.readObject(reader));
                            reader.close();
                            window.setTitle(loadedFile.getCanonicalPath());
                        } catch (IOException ex) {
                            ex.printStackTrace();
                            Alert.alert(ex.getMessage(), window);
                        }
                    }
                }
            });
        }
    });
    saveFileButton.getButtonPressListeners().add(new ButtonPressListener() {

        @Override
        public void buttonPressed(Button button) {
            final FileBrowserSheet fileBrowserSheet = new FileBrowserSheet();
            if (loadedFile != null) {
                fileBrowserSheet.setSelectedFile(loadedFile);
            }
            fileBrowserSheet.setMode(FileBrowserSheet.Mode.SAVE_AS);
            fileBrowserSheet.open(window, new SheetCloseListener() {

                @Override
                public void sheetClosed(Sheet sheet) {
                    if (sheet.getResult()) {
                        File selectedFile = fileBrowserSheet.getSelectedFile();
                        try {
                            FileWriter writer = new FileWriter(selectedFile);
                            PlainTextSerializer serializer = new PlainTextSerializer();
                            serializer.writeObject(textPane.getDocument(), writer);
                            writer.close();
                            loadedFile = selectedFile;
                            window.setTitle(loadedFile.getCanonicalPath());
                        } catch (IOException ex) {
                            ex.printStackTrace();
                            Alert.alert(ex.getMessage(), window);
                        }
                    }
                }
            });
        }
    });
    boldButton.getButtonPressListeners().add(new ButtonPressListener() {

        @Override
        public void buttonPressed(Button button) {
            applyStyleToSelection(new StyleApplicator() {

                @Override
                public void apply(TextSpan span) {
                    if (span.getFont() != null) {
                        Font font = span.getFont();
                        if (font.getStyle() == Font.PLAIN) {
                            font = font.deriveFont(Font.BOLD);
                        } else if (font.getStyle() == Font.BOLD) {
                            font = font.deriveFont(Font.PLAIN);
                        } else {
                            // the font is BOLD+ITALIC
                            font = font.deriveFont(Font.ITALIC);
                        }
                        span.setFont(font);
                    } else {
                        span.setFont("Arial BOLD 12");
                    }
                }
            });
            requestTextPaneFocus();
        }
    });
    italicButton.getButtonPressListeners().add(new ButtonPressListener() {

        @Override
        public void buttonPressed(Button button) {
            applyStyleToSelection(new StyleApplicator() {

                @Override
                public void apply(TextSpan span) {
                    if (span.getFont() != null) {
                        Font font = span.getFont();
                        if (font.getStyle() == Font.PLAIN) {
                            font = font.deriveFont(Font.ITALIC);
                        } else if (font.getStyle() == Font.ITALIC) {
                            font = font.deriveFont(Font.PLAIN);
                        } else {
                            // the font is BOLD+ITALIC
                            font = font.deriveFont(Font.BOLD);
                        }
                        span.setFont(font);
                    } else {
                        span.setFont("Arial ITALIC 12");
                    }
                }
            });
            requestTextPaneFocus();
        }
    });
    underlineButton.getButtonPressListeners().add(new ButtonPressListener() {

        @Override
        public void buttonPressed(Button button) {
            applyStyleToSelection(new StyleApplicator() {

                @Override
                public void apply(TextSpan span) {
                    span.setUnderline(!span.isUnderline());
                }
            });
            requestTextPaneFocus();
        }
    });
    strikethroughButton.getButtonPressListeners().add(new ButtonPressListener() {

        @Override
        public void buttonPressed(Button button) {
            applyStyleToSelection(new StyleApplicator() {

                @Override
                public void apply(TextSpan span) {
                    span.setStrikethrough(!span.isStrikethrough());
                }
            });
            requestTextPaneFocus();
        }
    });
    foregroundColorChooserButton.getColorChooserButtonSelectionListeners().add(new ColorChooserButtonSelectionListener() {

        @Override
        public void selectedColorChanged(ColorChooserButton colorChooserButton, Color previousSelectedColor) {
            applyStyleToSelection(new StyleApplicator() {

                @Override
                public void apply(TextSpan span) {
                    span.setForegroundColor(foregroundColorChooserButton.getSelectedColor());
                }
            });
            requestTextPaneFocus();
        }
    });
    backgroundColorChooserButton.getColorChooserButtonSelectionListeners().add(new ColorChooserButtonSelectionListener() {

        @Override
        public void selectedColorChanged(ColorChooserButton colorChooserButton, Color previousSelectedColor) {
            applyStyleToSelection(new StyleApplicator() {

                @Override
                public void apply(TextSpan span) {
                    span.setBackgroundColor(backgroundColorChooserButton.getSelectedColor());
                }
            });
            requestTextPaneFocus();
        }
    });
    ListButtonSelectionListener fontButtonPressListener = new ListButtonSelectionListener() {

        @Override
        public void selectedItemChanged(ListButton listButton, Object previousSelectedItem) {
            int selectedFontSize = ((Integer) fontSizeListButton.getSelectedItem()).intValue();
            String selectedFontFamily = (String) fontFamilyListButton.getSelectedItem();
            final Font derivedFont = Font.decode(selectedFontFamily + " " + selectedFontSize);
            applyStyleToSelection(new StyleApplicator() {

                @Override
                public void apply(TextSpan span) {
                    span.setFont(derivedFont);
                }
            });
            requestTextPaneFocus();
        }
    };
    fontFamilyListButton.getListButtonSelectionListeners().add(fontButtonPressListener);
    fontSizeListButton.getListButtonSelectionListeners().add(fontButtonPressListener);
    wrapTextCheckbox.getButtonPressListeners().add(new ButtonPressListener() {

        @Override
        public void buttonPressed(Button button) {
            textPane.getStyles().put(Style.wrapText, wrapTextCheckbox.isSelected());
            requestTextPaneFocus();
        }
    });
    alignLeftButton.getButtonPressListeners().add(new ButtonPressListener() {

        @Override
        public void buttonPressed(Button button) {
            applyAlignmentStyle(HorizontalAlignment.LEFT);
            requestTextPaneFocus();
        }
    });
    alignCentreButton.getButtonPressListeners().add(new ButtonPressListener() {

        @Override
        public void buttonPressed(Button button) {
            applyAlignmentStyle(HorizontalAlignment.CENTER);
            requestTextPaneFocus();
        }
    });
    alignRightButton.getButtonPressListeners().add(new ButtonPressListener() {

        @Override
        public void buttonPressed(Button button) {
            applyAlignmentStyle(HorizontalAlignment.RIGHT);
            requestTextPaneFocus();
        }
    });
    String scaleProperty = properties.get("scale");
    if (scaleProperty != null && !scaleProperty.isEmpty()) {
        try {
            double scaleFactor = Double.parseDouble(scaleProperty);
            System.out.println("Got scaling factor \"" + scaleProperty + "\" from command line arguments, now applying to display");
            display.getDisplayHost().setScale(scaleFactor);
        } catch (NumberFormatException nfe) {
            System.err.println("(NumberFormatException: " + nfe.getMessage());
        }
    }
    window.open(display);
    requestTextPaneFocus();
}

Example 5 with ListView

use of org.apache.pivot.wtk.ListView in project pivot by apache.

the class DragAndDropDemo method initialize.

@Override
public void initialize(Map<String, Object> namespace, URL location, Resources resources) {
    // Text
    label.setDragSource(new DragSource() {

        private LocalManifest content = null;

        @Override
        public boolean beginDrag(Component component, int x, int y) {
            String text = label.getText();
            if (text != null) {
                content = new LocalManifest();
                content.putText(label.getText());
            }
            return (content != null);
        }

        @Override
        public void endDrag(Component component, DropAction dropAction) {
            content = null;
        }

        @Override
        public boolean isNative() {
            return true;
        }

        @Override
        public LocalManifest getContent() {
            return content;
        }

        @Override
        public Visual getRepresentation() {
            return null;
        }

        @Override
        public Point getOffset() {
            return null;
        }

        @Override
        public int getSupportedDropActions() {
            return DropAction.COPY.getMask();
        }
    });
    label.setDropTarget(new DropTarget() {

        @Override
        public DropAction dragEnter(Component component, Manifest dragContent, int supportedDropActions, DropAction userDropAction) {
            DropAction dropAction = null;
            if (dragContent.containsText() && DropAction.COPY.isSelected(supportedDropActions)) {
                dropAction = DropAction.COPY;
            }
            return dropAction;
        }

        @Override
        public void dragExit(Component component) {
        // empty block
        }

        @Override
        public DropAction dragMove(Component component, Manifest dragContent, int supportedDropActions, int x, int y, DropAction userDropAction) {
            return (dragContent.containsText() ? DropAction.COPY : null);
        }

        @Override
        public DropAction userDropActionChange(Component component, Manifest dragContent, int supportedDropActions, int x, int y, DropAction userDropAction) {
            return (dragContent.containsText() ? DropAction.COPY : null);
        }

        @Override
        public DropAction drop(Component component, Manifest dragContent, int supportedDropActions, int x, int y, DropAction userDropAction) {
            DropAction dropAction = null;
            if (dragContent.containsText()) {
                try {
                    label.setText(dragContent.getText());
                    dropAction = DropAction.COPY;
                } catch (IOException exception) {
                    System.err.println(exception);
                }
            }
            dragExit(component);
            return dropAction;
        }
    });
    copyTextButton.getButtonPressListeners().add(new ButtonPressListener() {

        @Override
        public void buttonPressed(Button button) {
            String text = label.getText();
            LocalManifest clipboardContent = new LocalManifest();
            clipboardContent.putText(text);
            Clipboard.setContent(clipboardContent);
        }
    });
    pasteTextButton.getButtonPressListeners().add(new ButtonPressListener() {

        @Override
        public void buttonPressed(Button button) {
            Manifest clipboardContent = Clipboard.getContent();
            if (clipboardContent != null && clipboardContent.containsText()) {
                try {
                    label.setText(clipboardContent.getText());
                } catch (IOException exception) {
                    System.err.println(exception);
                }
            }
        }
    });
    // Images
    imageView.setDragSource(new DragSource() {

        private LocalManifest content = null;

        @Override
        public boolean beginDrag(Component component, int x, int y) {
            Image image = imageView.getImage();
            if (image != null) {
                content = new LocalManifest();
                content.putImage(image);
            }
            return (content != null);
        }

        @Override
        public void endDrag(Component component, DropAction dropAction) {
            content = null;
        }

        @Override
        public boolean isNative() {
            return true;
        }

        @Override
        public LocalManifest getContent() {
            return content;
        }

        @Override
        public Visual getRepresentation() {
            return null;
        }

        @Override
        public Point getOffset() {
            return null;
        }

        @Override
        public int getSupportedDropActions() {
            return DropAction.COPY.getMask();
        }
    });
    imageView.setDropTarget(new DropTarget() {

        @Override
        public DropAction dragEnter(Component component, Manifest dragContent, int supportedDropActions, DropAction userDropAction) {
            DropAction dropAction = null;
            if (dragContent.containsImage() && DropAction.COPY.isSelected(supportedDropActions)) {
                dropAction = DropAction.COPY;
            }
            return dropAction;
        }

        @Override
        public void dragExit(Component component) {
        // empty block
        }

        @Override
        public DropAction dragMove(Component component, Manifest dragContent, int supportedDropActions, int x, int y, DropAction userDropAction) {
            return (dragContent.containsImage() ? DropAction.COPY : null);
        }

        @Override
        public DropAction userDropActionChange(Component component, Manifest dragContent, int supportedDropActions, int x, int y, DropAction userDropAction) {
            return (dragContent.containsImage() ? DropAction.COPY : null);
        }

        @Override
        public DropAction drop(Component component, Manifest dragContent, int supportedDropActions, int x, int y, DropAction userDropAction) {
            DropAction dropAction = null;
            if (dragContent.containsImage()) {
                try {
                    imageView.setImage(dragContent.getImage());
                    dropAction = DropAction.COPY;
                } catch (IOException exception) {
                    System.err.println(exception);
                }
            }
            dragExit(component);
            return dropAction;
        }
    });
    copyImageButton.getButtonPressListeners().add(new ButtonPressListener() {

        @Override
        public void buttonPressed(Button button) {
            Image image = imageView.getImage();
            if (image != null) {
                LocalManifest clipboardContent = new LocalManifest();
                clipboardContent.putImage(image);
                Clipboard.setContent(clipboardContent);
            }
        }
    });
    pasteImageButton.getButtonPressListeners().add(new ButtonPressListener() {

        @Override
        public void buttonPressed(Button button) {
            Manifest clipboardContent = Clipboard.getContent();
            if (clipboardContent != null && clipboardContent.containsImage()) {
                try {
                    imageView.setImage(clipboardContent.getImage());
                } catch (IOException exception) {
                    System.err.println(exception);
                }
            }
        }
    });
    // Files
    listView.setListData(new FileList());
    listView.setDragSource(new DragSource() {

        private LocalManifest content = null;

        @Override
        public boolean beginDrag(Component component, int x, int y) {
            ListView listViewLocal = (ListView) component;
            FileList fileList = (FileList) listViewLocal.getListData();
            if (fileList.getLength() > 0) {
                content = new LocalManifest();
                content.putFileList(fileList);
            }
            return (content != null);
        }

        @Override
        public void endDrag(Component component, DropAction dropAction) {
            content = null;
        }

        @Override
        public boolean isNative() {
            return true;
        }

        @Override
        public LocalManifest getContent() {
            return content;
        }

        @Override
        public Visual getRepresentation() {
            return null;
        }

        @Override
        public Point getOffset() {
            return null;
        }

        @Override
        public int getSupportedDropActions() {
            return DropAction.COPY.getMask();
        }
    });
    listView.setDropTarget(new DropTarget() {

        @Override
        public DropAction dragEnter(Component component, Manifest dragContent, int supportedDropActions, DropAction userDropAction) {
            DropAction dropAction = null;
            if (dragContent.containsFileList() && DropAction.COPY.isSelected(supportedDropActions)) {
                dropAction = DropAction.COPY;
            }
            return dropAction;
        }

        @Override
        public void dragExit(Component component) {
        // empty block
        }

        @Override
        public DropAction dragMove(Component component, Manifest dragContent, int supportedDropActions, int x, int y, DropAction userDropAction) {
            return (dragContent.containsFileList() ? DropAction.COPY : null);
        }

        @Override
        public DropAction userDropActionChange(Component component, Manifest dragContent, int supportedDropActions, int x, int y, DropAction userDropAction) {
            return (dragContent.containsFileList() ? DropAction.COPY : null);
        }

        @Override
        public DropAction drop(Component component, Manifest dragContent, int supportedDropActions, int x, int y, DropAction userDropAction) {
            DropAction dropAction = null;
            if (dragContent.containsFileList()) {
                try {
                    listView.setListData(dragContent.getFileList());
                    dropAction = DropAction.COPY;
                } catch (IOException exception) {
                    System.err.println(exception);
                }
            }
            dragExit(component);
            return dropAction;
        }
    });
    copyFilesButton.getButtonPressListeners().add(new ButtonPressListener() {

        @Override
        public void buttonPressed(Button button) {
        // TODO
        }
    });
    pasteFilesButton.getButtonPressListeners().add(new ButtonPressListener() {

        @Override
        public void buttonPressed(Button button) {
        // TODO
        }
    });
}