imagetilelayer.java

来自「OpenMap是一个基于JavaBeansTM的开发工具包。利用OpenMap你」· Java 代码 · 共 1,440 行 · 第 1/4 页

            for (Iterator it = list.iterator(); it.hasNext(); tileCount++) {
                dlm.addElement(it.next());
            }
        }

        if (resultsList != null) {

            if (selectedIndicies != null) {
                resultsList.setSelectedIndices(selectedIndicies);
            }

            resultsList.repaint();
        }
    }

    /**
     * The ImageTiles currently selected on the list in the GUI.
     */
    protected ImageTile[] selectedTiles;

    /**
     * @return the ImageTile[] of tiles currently selected in the GUI.
     */
    protected ImageTile[] getSelectedTiles() {
        return selectedTiles;
    }

    /**
     * Set the ImageTile[] of tiles currently selected in the GUI.
     * 
     * @param sTiles
     */
    protected void setSelectedTiles(ImageTile[] sTiles) {
        selectedTiles = sTiles;
        boolean allTilesDefective = areAllTilesDefective(sTiles);
        setGUIButtonEnableState(sTiles != null && sTiles.length > 0
                && !allTilesDefective);

        if (allTilesDefective && icbp != null) {
            icbp.setGUIDeleteButtonEnableState(allTilesDefective);
        }

        checkShowHideStatus();
    }

    protected boolean areAllTilesDefective(ImageTile[] sTiles) {
        boolean allTilesDefective = false;
        if (sTiles != null && sTiles.length > 0) {
            allTilesDefective = true;
            for (int i = 0; i < sTiles.length; i++) {
                if (!(sTiles[i] instanceof ErrImageTile)) {
                    allTilesDefective = false;
                    break;
                }
            }
        }

        return allTilesDefective;
    }

    /**
     * Checks the selected tiles from the visible list and tallies their
     * visibility. If all of the tiles are invisible, the GUI button will allow
     * them to be made visible. If any of them are visible, all of them can be
     * made invisible before the button will change them to the visible.
     * 
     */
    public void checkShowHideStatus() {
        ImageTile[] sTiles = getSelectedTiles();

        boolean anyTilesVisible = (sTiles == null || sTiles.length == 0);
        if (sTiles != null) {
            for (int i = 0; i < sTiles.length; i++) {
                anyTilesVisible = sTiles[i].isVisible() || anyTilesVisible;
            }
        }

        showHideButton.setText(anyTilesVisible ? HIDE_TILES_TITLE
                : SHOW_TILES_TITLE);
    }

    /**
     * A list selection listener object for the JList.
     * 
     * @author dietrick
     */
    class ListManager implements ListSelectionListener, MouseListener,
            MouseMotionListener {
        public ListManager() {

        }

        public void valueChanged(ListSelectionEvent e) {
            if (e.getValueIsAdjusting() == false && resultsList != null) {
                // Reset the location selection;
                locateButton.setSelected(false);
                deselect();

                int[] indicies = resultsList.getSelectedIndices();
                ImageTile[] selectedTiles = new ImageTile[indicies.length];
                if (indicies.length > 0) {
                    ListModel listModel = getListModel();
                    for (int i = 0; i < indicies.length; i++) {
                        selectedTiles[i] = (ImageTile) listModel.getElementAt(indicies[i]);
                    }
                }
                setSelectedTiles(selectedTiles);
            }
        }

        public void mouseClicked(MouseEvent e) {

        }

        public void mouseEntered(MouseEvent e) {
        // TODO Auto-generated method stub

        }

        public void mouseExited(MouseEvent e) {
        // TODO Auto-generated method stub

        }

        public void mousePressed(MouseEvent e) {
            checkMouseSelection(e);
        }

        public void mouseReleased(MouseEvent e) {
            checkMouseSelection(e);
        }

        protected void checkMouseSelection(MouseEvent e) {
            int selectedIndex = getResultListIndex(e);
            if (selectedIndex < 0) {
                resultsList.clearSelection();
            }
        }

        public void mouseDragged(MouseEvent e) {
        // TODO Auto-generated method stub

        }

        public void mouseMoved(MouseEvent e) {
            int selectedIndex = getResultListIndex(e);
            if (selectedIndex >= 0) {
                Object it = getListModel().getElementAt(selectedIndex);
                if (it instanceof ErrImageTile) {
                    resultsList.setToolTipText(((ErrImageTile) it).getProblemMessage());
                    return;
                }
            }
            resultsList.setToolTipText(null);
        }
    }

    /**
     * find out which list object was moused.
     * 
     * @param e
     * @return
     */
    protected int getResultListIndex(MouseEvent e) {
        int index = -1;

        if (resultsList != null) {
            double height = getResultsListCellHeight();

            if (height == 0) {
                return index;
            }

            int nIndex = e.getY() / (int) height;

            if (nIndex < getListModel().getSize()) {
                index = nIndex;
            }
        }

        return index;
    }

    /**
     * Get the pixel height of each cell in the JList.
     * 
     * @return
     */
    protected double getResultsListCellHeight() {
        double height = 0;
        if (resultsList != null) {
            int rlFVI = resultsList.getFirstVisibleIndex();
            Rectangle bounds = resultsList.getCellBounds(rlFVI, rlFVI);

            if (bounds != null) {
                height = bounds.getHeight();
            }
        }

        return height;
    }

    public static int buttonSize = 16;
    public static ImageIcon warningImage;
    public static ImageIcon invisibleImage;

    protected static void initIcons() {
        DrawingAttributes blackDa = new DrawingAttributes();

        DrawingAttributes invisDa = new DrawingAttributes();
        invisDa.setLinePaint(OMColor.clear);
        invisDa.setFillPaint(OMColor.clear);

        DrawingAttributes yellowDa = new DrawingAttributes();
        yellowDa.setLinePaint(OMColor.yellow);
        yellowDa.setFillPaint(OMColor.yellow);

        IconPart ip = new BasicIconPart(new Rectangle2D.Double(0, 0, 100, 100));
        ip.setRenderingAttributes(invisDa);
        invisibleImage = OMIconFactory.getIcon(buttonSize, buttonSize, ip);

        IconPartList ipl = new IconPartList();

        Polygon triangle = new Polygon(new int[] { 50, 90, 10, 50 }, new int[] {
                10, 90, 90, 10 }, 4);

        BasicIconPart bip = new BasicIconPart(triangle);
        bip.setRenderingAttributes(yellowDa);
        ipl.add(bip);

        bip = new BasicIconPart(triangle);
        bip.setRenderingAttributes(yellowDa);
        ipl.add(bip);
        bip = new BasicIconPart(triangle);
        bip.setRenderingAttributes(blackDa);
        ipl.add(bip);
        bip = new BasicIconPart(new Line2D.Double(49, 35, 49, 65));
        bip.setRenderingAttributes(blackDa);
        ipl.add(bip);
        bip = new BasicIconPart(new Line2D.Double(49, 75, 49, 77));
        bip.setRenderingAttributes(blackDa);
        ipl.add(bip);
        bip = new BasicIconPart(new Line2D.Double(51, 35, 51, 65));
        bip.setRenderingAttributes(blackDa);
        ipl.add(bip);
        bip = new BasicIconPart(new Line2D.Double(51, 75, 51, 77));
        bip.setRenderingAttributes(blackDa);
        ipl.add(bip);
        warningImage = OMIconFactory.getIcon(buttonSize, buttonSize, ipl);

    }

    /**
     * Renders the JList cells.
     */
    public static class ImageListCellRenderer extends JPanel implements
            ListCellRenderer {
        protected int buttonSize = 16;
        protected JLabel label = new JLabel();
        protected JLabel statusMark = new JLabel();

        public static Color fontColor = Color.BLACK;
        public static Color altFontColor = Color.BLACK;
        public static Color selectColor = Color.GRAY;
        public static Color notVisibleColor = new Color(100, 100, 100);
        public static Color regularBackgroundColor = Color.WHITE;

        public ImageListCellRenderer() {
            if (warningImage == null) {
                initIcons();
            }

            setOpaque(true);
            GridBagLayout gridbag = new GridBagLayout();
            GridBagConstraints c = new GridBagConstraints();
            setLayout(gridbag);

            c.fill = GridBagConstraints.HORIZONTAL;
            c.weightx = 1.0f;
            gridbag.setConstraints(label, c);
            this.add(label);

            c.fill = GridBagConstraints.NONE;
            c.weightx = 0f;
            gridbag.setConstraints(statusMark, c);
            this.add(statusMark);

            Font f = label.getFont();
            f = new Font(f.getName(), f.getStyle(), f.getSize() - 1);
            label.setFont(f);

            setPreferredSize(new Dimension(20, buttonSize));
        }

        public Component getListCellRendererComponent(JList list, Object value,
                                                      int index,
                                                      boolean isSelected,
                                                      boolean cellHasFocus) {

            if (value instanceof ImageTile) {
                ImageTile imageTile = (ImageTile) value;
                label.setText((String) imageTile.getAttribute(NAME_ATTRIBUTE));

                if (!isSelected) {
                    label.setForeground(imageTile.isVisible() ? fontColor
                            : notVisibleColor);
                }

                if (value instanceof ErrImageTile) {
                    statusMark.setIcon(warningImage);
                } else {
                    statusMark.setIcon(invisibleImage);
                }

            }

            setBackground(isSelected ? selectColor : regularBackgroundColor);
            return this;
        }
    }

    /**
     * File filter created based on what the ImageReaders can handle.
     * 
     * @author dietrick
     */
    class ImageLoaderFileFilter extends FileFilter {

        Vector imageReaderLoaders;

        public ImageLoaderFileFilter(Vector imgDcdrLdrs) {
            imageReaderLoaders = imgDcdrLdrs;
        }

        public boolean accept(File f) {
            if (f.isDirectory()) {
                return true;
            }

            if (imageReaderLoaders != null) {
                for (Iterator it = imageReaderLoaders.iterator(); it.hasNext();) {
                    if (((ImageReaderLoader) it.next()).isLoadable(f.getName())) {
                        return true;
                    }
                }
            }
            return false;
        }

        public String getDescription() {
            String description = i18n.get(ImageTileLayer.class,
                    "fileFilterDescription",
                    "Image File Formats Supported by Layer");
            return description;
        }

    }
}