--- /dev/null
+package tim.prune.save;
+
+import java.awt.BorderLayout;
+import java.awt.Color;
+import java.awt.Component;
+import java.awt.FlowLayout;
+import java.awt.Font;
+import java.awt.FontMetrics;
+import java.awt.Graphics;
+import java.awt.event.ActionEvent;
+import java.awt.event.ActionListener;
+import java.awt.event.KeyAdapter;
+import java.awt.event.KeyEvent;
+import java.io.File;
+import java.io.IOException;
+
+import javax.imageio.ImageIO;
+import javax.swing.BorderFactory;
+import javax.swing.JButton;
+import javax.swing.JCheckBox;
+import javax.swing.JDialog;
+import javax.swing.JFileChooser;
+import javax.swing.JLabel;
+import javax.swing.JOptionPane;
+import javax.swing.JPanel;
+import javax.swing.border.EtchedBorder;
+
+import tim.prune.App;
+import tim.prune.DataSubscriber;
+import tim.prune.GenericFunction;
+import tim.prune.I18nManager;
+import tim.prune.config.ColourScheme;
+import tim.prune.config.Config;
+import tim.prune.data.DataPoint;
+import tim.prune.data.DoubleRange;
+import tim.prune.data.Track;
+import tim.prune.gui.GuiGridLayout;
+import tim.prune.gui.WholeNumberField;
+import tim.prune.gui.map.MapSource;
+import tim.prune.gui.map.MapSourceLibrary;
+import tim.prune.gui.map.MapUtils;
+import tim.prune.load.GenericFileFilter;
+
+/**
+ * Class to handle the exporting of map images, optionally with track data drawn on top.
+ * This allows images larger than the screen to be generated.
+ */
+public class ImageExporter extends GenericFunction implements DataSubscriber
+{
+ private JDialog _dialog = null;
+ private JCheckBox _drawDataCheckbox = null;
+ private WholeNumberField _textScaleField = null;
+ private JLabel _baseImageLabel = null;
+ private BaseImageConfigDialog _baseImageConfig = null;
+ private JFileChooser _fileChooser = null;
+ private JButton _okButton = null;
+
+ /**
+ * Constructor
+ * @param inApp App object
+ */
+ public ImageExporter(App inApp)
+ {
+ super(inApp);
+ }
+
+ /** Get the name key */
+ public String getNameKey() {
+ return "function.exportimage";
+ }
+
+ /**
+ * Begin the function by showing the input dialog
+ */
+ public void begin()
+ {
+ // Make dialog window
+ if (_dialog == null)
+ {
+ _dialog = new JDialog(_parentFrame, I18nManager.getText(getNameKey()), true);
+ _dialog.setLocationRelativeTo(_parentFrame);
+ _dialog.getContentPane().add(makeDialogComponents());
+ _dialog.pack();
+ _textScaleField.setValue(100);
+ }
+ // Make base image dialog too
+ if (_baseImageConfig == null) {
+ _baseImageConfig = new BaseImageConfigDialog(this, _dialog, _app.getTrackInfo().getTrack());
+ }
+
+ // Check if there is a cache to use
+ if (!BaseImageConfigDialog.isImagePossible())
+ {
+ _app.showErrorMessage(getNameKey(), "dialog.exportimage.noimagepossible");
+ return;
+ }
+
+ updateBaseImageDetails();
+ // Show dialog
+ _dialog.setVisible(true);
+ }
+
+ /**
+ * Make the dialog components to select the export options
+ * @return Component holding gui elements
+ */
+ private Component makeDialogComponents()
+ {
+ JPanel panel = new JPanel();
+ panel.setLayout(new BorderLayout(4, 4));
+ // Checkbox for drawing track or not
+ _drawDataCheckbox = new JCheckBox(I18nManager.getText("dialog.exportimage.drawtrack"));
+ _drawDataCheckbox.setSelected(true); // draw by default
+
+ // TODO: Maybe have other controls such as line width, symbol scale factor
+ JPanel controlsPanel = new JPanel();
+ GuiGridLayout grid = new GuiGridLayout(controlsPanel);
+ grid.add(new JLabel(I18nManager.getText("dialog.exportimage.textscalepercent") + ": "));
+ _textScaleField = new WholeNumberField(3);
+ _textScaleField.setText("888");
+ grid.add(_textScaleField);
+
+ // OK, Cancel buttons
+ JPanel buttonPanel = new JPanel();
+ buttonPanel.setLayout(new FlowLayout(FlowLayout.RIGHT));
+ _okButton = new JButton(I18nManager.getText("button.ok"));
+ _okButton.addActionListener(new ActionListener() {
+ public void actionPerformed(ActionEvent e)
+ {
+ doExport();
+ MapGrouter.clearMapImage();
+ _dialog.dispose();
+ }
+ });
+ buttonPanel.add(_okButton);
+ JButton cancelButton = new JButton(I18nManager.getText("button.cancel"));
+ cancelButton.addActionListener(new ActionListener() {
+ public void actionPerformed(ActionEvent e)
+ {
+ MapGrouter.clearMapImage();
+ _dialog.dispose();
+ }
+ });
+ buttonPanel.add(cancelButton);
+ panel.add(buttonPanel, BorderLayout.SOUTH);
+
+ // Listener to close dialog if escape pressed
+ KeyAdapter closer = new KeyAdapter() {
+ public void keyReleased(KeyEvent e)
+ {
+ if (e.getKeyCode() == KeyEvent.VK_ESCAPE) {
+ _dialog.dispose();
+ MapGrouter.clearMapImage();
+ }
+ }
+ };
+ _drawDataCheckbox.addKeyListener(closer);
+
+ // Panel for the base image
+ JPanel imagePanel = new JPanel();
+ imagePanel.setLayout(new BorderLayout(10, 4));
+ imagePanel.add(new JLabel(I18nManager.getText("dialog.exportpov.baseimage") + ": "), BorderLayout.WEST);
+ _baseImageLabel = new JLabel("Typical sourcename");
+ imagePanel.add(_baseImageLabel, BorderLayout.CENTER);
+ JButton baseImageButton = new JButton(I18nManager.getText("button.edit"));
+ baseImageButton.addActionListener(new ActionListener() {
+ public void actionPerformed(ActionEvent event) {
+ changeBaseImage();
+ }
+ });
+ baseImageButton.addKeyListener(closer);
+ imagePanel.add(baseImageButton, BorderLayout.EAST);
+ imagePanel.setBorder(BorderFactory.createCompoundBorder(
+ BorderFactory.createEtchedBorder(EtchedBorder.LOWERED), BorderFactory.createEmptyBorder(4, 4, 4, 4))
+ );
+
+ // add these panels to the holder panel
+ JPanel holderPanel = new JPanel();
+ holderPanel.setLayout(new BorderLayout(5, 5));
+ holderPanel.add(_drawDataCheckbox, BorderLayout.NORTH);
+ holderPanel.add(controlsPanel, BorderLayout.CENTER);
+ holderPanel.add(imagePanel, BorderLayout.SOUTH);
+ holderPanel.setBorder(BorderFactory.createEmptyBorder(4, 4, 4, 4));
+
+ panel.add(holderPanel, BorderLayout.NORTH);
+ return panel;
+ }
+
+ /**
+ * Change the base image by calling the BaseImageConfigDialog
+ */
+ private void changeBaseImage()
+ {
+ // Check if there is a cache to use
+ if (BaseImageConfigDialog.isImagePossible())
+ {
+ // Show new dialog to choose image details
+ _baseImageConfig.beginWithImageYes();
+ }
+ }
+
+ /**
+ * Callback from base image config dialog
+ */
+ public void dataUpdated(byte inUpdateType)
+ {
+ updateBaseImageDetails();
+ }
+
+ /** Not required */
+ public void actionCompleted(String inMessage) {
+ }
+
+ /**
+ * Update the description label according to the selected base image details
+ */
+ private void updateBaseImageDetails()
+ {
+ String desc = null;
+ if (_baseImageConfig.useImage())
+ {
+ MapSource source = MapSourceLibrary.getSource(_baseImageConfig.getSourceIndex());
+ if (source != null) {
+ desc = source.getName() + " ("
+ + _baseImageConfig.getZoomLevel() + ")";
+ }
+ }
+ if (desc == null) {
+ desc = I18nManager.getText("dialog.about.no");
+ }
+ _baseImageLabel.setText(desc);
+ _okButton.setEnabled(_baseImageConfig.useImage() && _baseImageConfig.getFoundData()
+ && MapGrouter.isZoomLevelOk(_app.getTrackInfo().getTrack(), _baseImageConfig.getZoomLevel()));
+ }
+
+ /**
+ * Select the file and export data to it
+ */
+ private void doExport()
+ {
+ // OK pressed, so choose output file
+ _okButton.setEnabled(false);
+ if (_fileChooser == null)
+ {
+ _fileChooser = new JFileChooser();
+ _fileChooser.setDialogType(JFileChooser.SAVE_DIALOG);
+ _fileChooser.setFileFilter(new GenericFileFilter("filetype.png", new String[] {"png"}));
+ _fileChooser.setAcceptAllFileFilterUsed(false);
+ // start from directory in config which should be set
+ final String configDir = Config.getConfigString(Config.KEY_TRACK_DIR);
+ if (configDir != null) {_fileChooser.setCurrentDirectory(new File(configDir));}
+ }
+
+ // Allow choose again if an existing file is selected
+ boolean chooseAgain = false;
+ do
+ {
+ chooseAgain = false;
+ if (_fileChooser.showSaveDialog(_parentFrame) == JFileChooser.APPROVE_OPTION)
+ {
+ // OK pressed and file chosen
+ File pngFile = _fileChooser.getSelectedFile();
+ if (!pngFile.getName().toLowerCase().endsWith(".png"))
+ {
+ pngFile = new File(pngFile.getAbsolutePath() + ".png");
+ }
+ // Check if file exists and if necessary prompt for overwrite
+ Object[] buttonTexts = {I18nManager.getText("button.overwrite"), I18nManager.getText("button.cancel")};
+ if (!pngFile.exists() || JOptionPane.showOptionDialog(_parentFrame,
+ I18nManager.getText("dialog.save.overwrite.text"),
+ I18nManager.getText("dialog.save.overwrite.title"), JOptionPane.YES_NO_OPTION,
+ JOptionPane.WARNING_MESSAGE, null, buttonTexts, buttonTexts[1])
+ == JOptionPane.YES_OPTION)
+ {
+ // Export the file
+ if (!exportFile(pngFile))
+ {
+ // export failed so need to choose again
+ chooseAgain = true;
+ }
+ }
+ else
+ {
+ // overwrite cancelled so need to choose again
+ chooseAgain = true;
+ }
+ }
+ } while (chooseAgain);
+ }
+
+ /**
+ * Export the track data to the specified file
+ * @param inPngFile File object to save to
+ * @return true if successful
+ */
+ private boolean exportFile(File inPngFile)
+ {
+ // Get the image file from the grouter
+ MapSource source = MapSourceLibrary.getSource(_baseImageConfig.getSourceIndex());
+ GroutedImage baseImage = MapGrouter.getMapImage(_app.getTrackInfo().getTrack(), source,
+ _baseImageConfig.getZoomLevel());
+ if (baseImage == null || !baseImage.isValid())
+ {
+ _app.showErrorMessage(getNameKey(), "dialog.exportpov.cannotmakebaseimage");
+ return true;
+ }
+ try
+ {
+ if (_drawDataCheckbox.isSelected())
+ {
+ // Draw the track on top of this image
+ drawData(baseImage);
+ }
+ // Write composite image to file
+ if (!ImageIO.write(baseImage.getImage(), "png", inPngFile)) {
+ _app.showErrorMessage(getNameKey(), "dialog.exportpov.cannotmakebaseimage");
+ return false; // choose again - the image creation worked but the save failed
+ }
+ }
+ catch (IOException ioe) {
+ System.err.println("Can't write image: " + ioe.getClass().getName());
+ }
+ return true;
+ }
+
+ /**
+ * Draw the track and waypoint data from the current Track onto the given image
+ * @param inImage GroutedImage from map tiles
+ */
+ private void drawData(GroutedImage inImage)
+ {
+ // Work out x, y limits for drawing
+ DoubleRange xRange = inImage.getXRange();
+ DoubleRange yRange = inImage.getYRange();
+ int zoomFactor = 1 << _baseImageConfig.getZoomLevel();
+ Graphics g = inImage.getImage().getGraphics();
+ // TODO: Set colour, line width
+ g.setColor(Config.getColourScheme().getColour(ColourScheme.IDX_POINT));
+
+ // Loop over points
+ final Track track = _app.getTrackInfo().getTrack();
+ final int numPoints = track.getNumPoints();
+ int prevX = 0, prevY = 0;
+ for (int i=0; i<numPoints; i++)
+ {
+ DataPoint point = track.getPoint(i);
+ if (!point.isWaypoint())
+ {
+ double x = track.getX(i) - xRange.getMinimum();
+ double y = track.getY(i) - yRange.getMinimum();
+ // use zoom level to calculate pixel coords on image
+ int px = (int) (x * zoomFactor * 256), py = (int) (y * zoomFactor * 256);
+ // System.out.println("Point: x=" + x + ", px=" + px + ", y=" + y + ", py=" + py);
+ if (!point.getSegmentStart()) {
+ // draw from previous point to this one
+ g.drawLine(prevX, prevY, px, py);
+ }
+ // draw this point
+ g.drawRect(px-2, py-2, 3, 3);
+ // save coordinates
+ prevX = px; prevY = py;
+ }
+ }
+ // Draw waypoints
+ final Color textColour = Config.getColourScheme().getColour(ColourScheme.IDX_TEXT);
+ g.setColor(textColour);
+ // Loop over points
+ for (int i=0; i<numPoints; i++)
+ {
+ DataPoint point = track.getPoint(i);
+ if (point.isWaypoint())
+ {
+ // draw blob for each waypoint
+ double x = track.getX(i) - xRange.getMinimum();
+ double y = track.getY(i) - yRange.getMinimum();
+ // use zoom level to calculate pixel coords on image
+ int px = (int) (x * zoomFactor * 256), py = (int) (y * zoomFactor * 256);
+ g.fillRect(px-3, py-3, 6, 6);
+ }
+ }
+ // Set text size according to input
+ int fontScalePercent = _textScaleField.getValue();
+ if (fontScalePercent > 10 && fontScalePercent <= 999)
+ {
+ Font gFont = g.getFont();
+ g.setFont(gFont.deriveFont((float) (gFont.getSize() * 0.01 * fontScalePercent)));
+ }
+ FontMetrics fm = g.getFontMetrics();
+ final int nameHeight = fm.getHeight();
+ final int imageSize = inImage.getImageSize();
+
+ // Loop over points again, draw photo points
+ final Color photoColour = Config.getColourScheme().getColour(ColourScheme.IDX_SECONDARY);
+ g.setColor(photoColour);
+ for (int i=0; i<numPoints; i++)
+ {
+ DataPoint point = track.getPoint(i);
+ if (point.hasMedia())
+ {
+ // draw blob for each photo
+ double x = track.getX(i) - xRange.getMinimum();
+ double y = track.getY(i) - yRange.getMinimum();
+ // use zoom level to calculate pixel coords on image
+ int px = (int) (x * zoomFactor * 256), py = (int) (y * zoomFactor * 256);
+ g.fillRect(px-3, py-3, 6, 6);
+ }
+ }
+
+ // Loop over points again, now draw names for waypoints
+ g.setColor(textColour);
+ for (int i=0; i<numPoints; i++)
+ {
+ DataPoint point = track.getPoint(i);
+ if (point.isWaypoint())
+ {
+ double x = track.getX(i) - xRange.getMinimum();
+ double y = track.getY(i) - yRange.getMinimum();
+ int px = (int) (x * zoomFactor * 256), py = (int) (y * zoomFactor * 256);
+
+ // Figure out where to draw waypoint name so it doesn't obscure track
+ String waypointName = point.getWaypointName();
+ int nameWidth = fm.stringWidth(waypointName);
+ boolean drawnName = false;
+ // Make arrays for coordinates right left up down
+ int[] nameXs = {px + 2, px - nameWidth - 2, px - nameWidth/2, px - nameWidth/2};
+ int[] nameYs = {py + (nameHeight/2), py + (nameHeight/2), py - 2, py + nameHeight + 2};
+ for (int extraSpace = 4; extraSpace < 13 && !drawnName; extraSpace+=2)
+ {
+ // Shift arrays for coordinates right left up down
+ nameXs[0] += 2; nameXs[1] -= 2;
+ nameYs[2] -= 2; nameYs[3] += 2;
+ // Check each direction in turn right left up down
+ for (int a=0; a<4; a++)
+ {
+ if (nameXs[a] > 0 && (nameXs[a] + nameWidth) < imageSize
+ && nameYs[a] < imageSize && (nameYs[a] - nameHeight) > 0
+ && !MapUtils.overlapsPoints(inImage.getImage(), nameXs[a], nameYs[a],
+ nameWidth, nameHeight, textColour))
+ {
+ // Found a rectangle to fit - draw name here and quit
+ g.drawString(waypointName, nameXs[a], nameYs[a]);
+ drawnName = true;
+ break;
+ }
+ }
+ }
+ }
+ }
+
+ // Maybe draw note at the bottom, export from GpsPrune? Filename?
+ // Note: Differences from main map: No mapPosition (modifying position and visible points),
+ // no selection, no opacities, maybe different scale/text factors
+ }
+}
projects / GpsPrune.git / blobdiff