testlayer.java

openmap java写的开源数字地图程序. 用applet实现,可以像google map 那样放大缩小地图.

                    }
                });
                tf = PaletteHelper.createTextEntry("nverts", "" + nsegs, pop);
                tf.addFocusListener(new FocusAdapter() {
                    public void focusLost(FocusEvent e) {
                        setSegs((JTextField) e.getSource());
                    }
                });
            }

            if (rt != OMGraphic.RENDERTYPE_LATLON) {
                tf = PaletteHelper.createTextEntry("width", "" + width, pop);
                tf.addFocusListener(new FocusAdapter() {
                    public void focusLost(FocusEvent e) {
                        JTextField jtf = (JTextField) e.getSource();
                        try {
                            width = Integer.parseInt(jtf.getText().trim());
                        } catch (NumberFormatException ex) {
                            return;
                        }
                    }
                });
                tf = PaletteHelper.createTextEntry("height", "" + height, pop);
                tf.addFocusListener(new FocusAdapter() {
                    public void focusLost(FocusEvent e) {
                        JTextField jtf = (JTextField) e.getSource();
                        try {
                            height = Integer.parseInt(jtf.getText().trim());
                        } catch (NumberFormatException ex) {
                            return;
                        }
                    }
                });
            }

            // line color
            makeColorBox(pop, "line", false);

            // fill color
            makeColorBox(pop, "fill", true);

            // filled?
            makeFillCheckBox(pop);

            // add ok button
            pop.add(getOKButton());

            return pop;
        }
    }

    protected class Poly extends GraphicBase {

        protected float lat = 0f;
        protected float lon = 0f;
        protected int cMode = OMPoly.COORDMODE_ORIGIN;

        public Poly() {
            llpts = new float[8];
            xypts = new int[6];
            llpts[0] = 10f;
            llpts[1] = -20f;
            llpts[2] = 45f;
            llpts[3] = -70f;
            llpts[4] = 0f;
            llpts[5] = -90f;
            llpts[6] = -15f;
            llpts[7] = -40f;
            xypts[0] = 145;
            xypts[1] = 190;
            xypts[2] = 160;
            xypts[3] = 210;
            xypts[2] = 135;
            xypts[3] = 215;
            lineColor = 4;
            fillColor = 9;
            type = OMGraphic.LINETYPE_GREATCIRCLE;
        }

        // set latlon vertices
        protected void setVertices(String verts) {
            try {
                String str;
                StringTokenizer tok = new StringTokenizer(verts, "\n\r");

                // clean out comments
                verts = "";
                while (tok.hasMoreTokens()) {
                    str = tok.nextToken().trim();
                    if (str.charAt(0) != '#') {
                        verts = verts + str + " ";
                    }
                }

                // extract vertices
                tok = new StringTokenizer(verts);
                int size = tok.countTokens();
                System.out.println("ll size=" + size);
                llpts = new float[size];
                for (int i = 0; i < size; i += 2) {
                    str = tok.nextToken();
                    System.out.print("lat=" + str);
                    llpts[i] = Float.valueOf(str).floatValue();
                    str = tok.nextToken();
                    System.out.println(" lon=" + str);
                    llpts[i + 1] = Float.valueOf(str).floatValue();
                }
            } catch (NumberFormatException ex) {
                return;
            }
        }

        protected void setXY(JTextArea jta) {
            try {
                if (false)
                    throw new NumberFormatException("foo");
            } catch (NumberFormatException ex) {
                return;
            }
        }

        protected void setLL(JTextArea jta) {
            setVertices(jta.getText().trim());
        }

        protected void setLLCoordinate(JTextField jtf, int i) {
            try {
                if (i == 0)
                    lat = Float.valueOf(jtf.getText().trim()).floatValue();
                else
                    lon = Float.valueOf(jtf.getText().trim()).floatValue();
            } catch (NumberFormatException ex) {
                return;
            }
        }

        public JPanel getGUI() {
            // request focus
            requestFocus();

            final JPanel pop;
            JPanel pal;
            JTextField tf;
            JTextArea ta;
            pop = PaletteHelper.createVerticalPanel(null);

            if (rt == OMGraphic.RENDERTYPE_LATLON) {
                pal = PaletteHelper.createVerticalPanel(null);
                JComboBox jcb = new JComboBox();
                jcb.addItem("Straight");// indices correspond to
                                        // LineType.java
                jcb.addItem("Rhumb");
                jcb.addItem("Great Circle");
                jcb.setSelectedIndex(type - 1);
                jcb.addActionListener(new ActionListener() {
                    public void actionPerformed(ActionEvent e) {
                        setType((JComboBox) e.getSource());
                    }
                });
                pal.add(jcb);
                pop.add(pal);
                tf = PaletteHelper.createTextEntry("nsegs", "" + nsegs, pop);
                tf.addFocusListener(new FocusAdapter() {
                    public void focusLost(FocusEvent e) {
                        setSegs((JTextField) e.getSource());
                    }
                });
                String entry = "";
                for (int i = 0; i < llpts.length; i += 2) {
                    entry = entry + llpts[i] + " " + llpts[i + 1] + "\n";
                }
                ta = PaletteHelper.createTextArea("llpts", entry, pop, 5, 8);
                ta.addFocusListener(new FocusAdapter() {
                    public void focusLost(FocusEvent e) {
                        setLL((JTextArea) e.getSource());
                    }
                });
            } else {
                if (rt == OMGraphic.RENDERTYPE_OFFSET) {
                    tf = PaletteHelper.createTextEntry("lat",
                            "" + llpts[0],
                            pop);
                    tf.addFocusListener(new FocusAdapter() {
                        public void focusLost(FocusEvent e) {
                            setLLCoordinate((JTextField) e.getSource(), 0);
                        }
                    });
                    tf = PaletteHelper.createTextEntry("lon",
                            "" + llpts[1],
                            pop);
                    tf.addFocusListener(new FocusAdapter() {
                        public void focusLost(FocusEvent e) {
                            setLLCoordinate((JTextField) e.getSource(), 1);
                        }
                    });
                }
                String entry = "";
                for (int i = 0; i < xypts.length; i += 2) {
                    entry = entry + xypts[i] + " " + xypts[i + 1] + "\n";
                }
                ta = PaletteHelper.createTextArea("xypts", entry, pop, 0, 0);
                ta.addFocusListener(new FocusAdapter() {
                    public void focusLost(FocusEvent e) {
                        setXY((JTextArea) e.getSource());
                    }
                });
            }

            // line color
            makeColorBox(pop, "line", false);

            // fill color
            makeColorBox(pop, "fill", true);

            // filled?
            makeFillCheckBox(pop);

            // add ok button
            pop.add(getOKButton());

            return pop;
        }
    }

    protected class Text extends GraphicBase {
        protected String data;
        protected String font = "SansSerif-Bold-18";
        protected int just = OMText.JUSTIFY_CENTER;

        public Text() {
            llpts[0] = 42.35f;
            llpts[1] = -70.5f;
            xypts[0] = 20;
            xypts[1] = 10;
            lineColor = 10;
            data = "Boston";
        }

        public JPanel getGUI() {
            // request focus
            requestFocus();

            final JPanel pop;
            JPanel pal;
            JTextField tf;
            final JComboBox jcb;
            pop = PaletteHelper.createVerticalPanel(null);

            tf = PaletteHelper.createTextEntry("text", data, pop);
            tf.addFocusListener(new FocusAdapter() {
                public void focusLost(FocusEvent e) {
                    data = ((JTextField) (e.getSource())).getText().trim();
                }
            });

            tf = PaletteHelper.createTextEntry("font", font, pop);
            tf.addFocusListener(new FocusAdapter() {
                public void focusLost(FocusEvent e) {
                    font = ((JTextField) (e.getSource())).getText().trim();
                }
            });

            pal = PaletteHelper.createVerticalPanel(null);
            jcb = new JComboBox();
            jcb.addItem("right");// indices correspond to values in
                                 // OMText
            jcb.addItem("center");
            jcb.addItem("left");
            jcb.setSelectedIndex(just);
            jcb.addActionListener(new ActionListener() {
                public void actionPerformed(ActionEvent e) {
                    just = jcb.getSelectedIndex();
                    setList(generateGraphics());
                    repaint();
                }
            });
            pal.add(jcb);
            pop.add(pal);

            if (rt != OMGraphic.RENDERTYPE_XY) {
                tf = PaletteHelper.createTextEntry("lat", "" + llpts[0], pop);
                tf.addFocusListener(new FocusAdapter() {
                    public void focusLost(FocusEvent e) {
                        setLLCoordinate((JTextField) e.getSource(), 0);
                    }
                });
                tf = PaletteHelper.createTextEntry("lon", "" + llpts[1], pop);
                tf.addFocusListener(new FocusAdapter() {
                    public void focusLost(FocusEvent e) {
                        setLLCoordinate((JTextField) e.getSource(), 1);
                    }
                });
            }

            if (rt != OMGraphic.RENDERTYPE_LATLON) {
                tf = PaletteHelper.createTextEntry("off_x", "" + xypts[0], pop);
                tf.addFocusListener(new FocusAdapter() {
                    public void focusLost(FocusEvent e) {
                        setXYCoordinate((JTextField) e.getSource(), 0);
                    }
                });
                tf = PaletteHelper.createTextEntry("off_y", "" + xypts[1], pop);
                tf.addFocusListener(new FocusAdapter() {
                    public void focusLost(FocusEvent e) {
                        setXYCoordinate((JTextField) e.getSource(), 1);
                    }
                });
            }

            // line color
            makeColorBox(pop, "text", false);

            // add ok button
            pop.add(getOKButton());

            return pop;
        }
    }
}