+++ /dev/null
-package tim.prune.gui;
-
-import java.awt.Color;
-import java.awt.Dimension;
-import java.awt.FontMetrics;
-import java.awt.Graphics;
-import java.awt.event.ActionEvent;
-import java.awt.event.ActionListener;
-import java.awt.event.KeyEvent;
-import java.awt.event.KeyListener;
-import java.awt.event.MouseEvent;
-import java.awt.event.MouseMotionListener;
-import java.awt.event.MouseWheelEvent;
-import java.awt.event.MouseWheelListener;
-import java.awt.image.BufferedImage;
-
-import javax.swing.JCheckBoxMenuItem;
-import javax.swing.JMenuItem;
-import javax.swing.JPopupMenu;
-
-import tim.prune.App;
-import tim.prune.DataSubscriber;
-import tim.prune.I18nManager;
-import tim.prune.data.DataPoint;
-import tim.prune.data.TrackInfo;
-
-
-/**
- * Display component for the main map
- */
-public class MapChart extends GenericChart implements MouseWheelListener, KeyListener, MouseMotionListener
-{
- // Constants
- private static final int POINT_RADIUS = 4;
- private static final int CLICK_SENSITIVITY = 10;
- private static final double ZOOM_SCALE_FACTOR = 1.4;
- private static final int PAN_DISTANCE = 10;
- private static final int LIMIT_WAYPOINT_NAMES = 40;
-
- // Colours
- private static final Color COLOR_BG = Color.WHITE;
- private static final Color COLOR_POINT = Color.BLUE;
- private static final Color COLOR_CURR_RANGE = Color.GREEN;
- private static final Color COLOR_CROSSHAIRS = Color.RED;
- private static final Color COLOR_WAYPT_NAME = Color.BLACK;
-
- // Instance variables
- private App _app = null;
- private BufferedImage _image = null;
- private JPopupMenu _popup = null;
- private JCheckBoxMenuItem _autoPanMenuItem = null;
- private JCheckBoxMenuItem _connectPointsMenuItem = null;
- private int _numPoints = -1;
- private double _scale;
- private double _offsetX, _offsetY, _zoomScale;
- private int _lastSelectedPoint = -1;
- private int _dragStartX = -1, _dragStartY = -1;
- private int _zoomDragFromX = -1, _zoomDragFromY = -1;
- private int _zoomDragToX = -1, _zoomDragToY = -1;
- private boolean _zoomDragging = false;
-
-
- /**
- * Constructor
- * @param inApp App object for callbacks
- * @param inTrackInfo track info object
- */
- public MapChart(App inApp, TrackInfo inTrackInfo)
- {
- super(inTrackInfo);
- _app = inApp;
- makePopup();
- addMouseListener(this);
- addMouseWheelListener(this);
- addMouseMotionListener(this);
- setFocusable(true);
- addKeyListener(this);
- MINIMUM_SIZE = new Dimension(200, 250);
- _zoomScale = 1.0;
- }
-
-
- /**
- * Override track updating to refresh image
- */
- public void dataUpdated(byte inUpdateType)
- {
- // Check if number of points has changed or data has been edited
- if (_track.getNumPoints() != _numPoints || (inUpdateType & DATA_EDITED) > 0)
- {
- _image = null;
- _lastSelectedPoint = -1;
- _numPoints = _track.getNumPoints();
- }
- super.dataUpdated(inUpdateType);
- }
-
-
- /**
- * Override paint method to draw map
- * @param inG graphics object
- */
- public void paint(Graphics inG)
- {
- if (_track == null)
- {
- super.paint(inG);
- return;
- }
-
- int width = getWidth();
- int height = getHeight();
- int x, y;
-
- // Find x and y ranges, and scale to fit
- double scaleX = (_track.getXRange().getMaximum() - _track.getXRange().getMinimum())
- / (width - 2 * (BORDER_WIDTH + POINT_RADIUS));
- double scaleY = (_track.getYRange().getMaximum() - _track.getYRange().getMinimum())
- / (height - 2 * (BORDER_WIDTH + POINT_RADIUS));
- _scale = scaleX;
- if (scaleY > _scale) _scale = scaleY;
-
- // Autopan if necessary
- int selectedPoint = _trackInfo.getSelection().getCurrentPointIndex();
- if (_autoPanMenuItem.isSelected() && selectedPoint >= 0 && selectedPoint != _lastSelectedPoint)
- {
- // Autopan is enabled and a point is selected - work out x and y to see if it's within range
- x = width/2 + (int) ((_track.getX(selectedPoint) - _offsetX) / _scale * _zoomScale);
- y = height/2 - (int) ((_track.getY(selectedPoint) - _offsetY) / _scale * _zoomScale);
- if (x <= BORDER_WIDTH)
- {
- // autopan left
- _offsetX -= (width / 4 - x) * _scale / _zoomScale;
- _image = null;
- }
- else if (x >= (width - BORDER_WIDTH))
- {
- // autopan right
- _offsetX += (x - width * 3/4) * _scale / _zoomScale;
- _image = null;
- }
- if (y <= BORDER_WIDTH)
- {
- // autopan up
- _offsetY += (height / 4 - y) * _scale / _zoomScale;
- _image = null;
- }
- else if (y >= (height - BORDER_WIDTH))
- {
- // autopan down
- _offsetY -= (y - height * 3/4) * _scale / _zoomScale;
- _image = null;
- }
- }
- _lastSelectedPoint = selectedPoint;
-
- // Create background if necessary
- if (_image == null || width != _image.getWidth() || height != _image.getHeight())
- {
- createBackgroundImage();
- }
- // return if image has been set to null by other thread
- if (_image == null) {return;}
-
- // draw buffered image onto g
- inG.drawImage(_image, 0, 0, width, height, COLOR_BG, null);
-
- // draw selected range, if any
- if (_trackInfo.getSelection().hasRangeSelected() && !_zoomDragging)
- {
- int rangeStart = _trackInfo.getSelection().getStart();
- int rangeEnd = _trackInfo.getSelection().getEnd();
- inG.setColor(COLOR_CURR_RANGE);
- for (int i=rangeStart; i<=rangeEnd; i++)
- {
- x = width/2 + (int) ((_track.getX(i) - _offsetX) / _scale * _zoomScale);
- y = height/2 - (int) ((_track.getY(i) - _offsetY) / _scale * _zoomScale);
- if (x > BORDER_WIDTH && x < (width - BORDER_WIDTH)
- && y < (height - BORDER_WIDTH) && y > BORDER_WIDTH)
- {
- inG.drawRect(x - 2, y - 2, 4, 4);
- }
- }
- }
-
- // Highlight selected point
- if (selectedPoint >= 0 && !_zoomDragging)
- {
- inG.setColor(COLOR_CROSSHAIRS);
- x = width/2 + (int) ((_track.getX(selectedPoint) - _offsetX) / _scale * _zoomScale);
- y = height/2 - (int) ((_track.getY(selectedPoint) - _offsetY) / _scale * _zoomScale);
- if (x > BORDER_WIDTH && x < (width - BORDER_WIDTH)
- && y < (height - BORDER_WIDTH) && y > BORDER_WIDTH)
- {
- // Draw cross-hairs for current point
- inG.drawLine(x, BORDER_WIDTH, x, height - BORDER_WIDTH);
- inG.drawLine(BORDER_WIDTH, y, width - BORDER_WIDTH, y);
-
- // Show selected point afterwards to make sure it's on top
- inG.drawOval(x - 2, y - 2, 4, 4);
- inG.drawOval(x - 3, y - 3, 6, 6);
- }
- }
-
- // Draw rectangle for dragging zoom area
- if (_zoomDragging)
- {
- inG.setColor(COLOR_CROSSHAIRS);
- inG.drawLine(_zoomDragFromX, _zoomDragFromY, _zoomDragFromX, _zoomDragToY);
- inG.drawLine(_zoomDragFromX, _zoomDragFromY, _zoomDragToX, _zoomDragFromY);
- inG.drawLine(_zoomDragToX, _zoomDragFromY, _zoomDragToX, _zoomDragToY);
- inG.drawLine(_zoomDragFromX, _zoomDragToY, _zoomDragToX, _zoomDragToY);
- }
-
- // Attempt to grab keyboard focus if possible
- //requestFocus(); (causes problems here)
- }
-
-
- /**
- * Plot the points onto an offscreen image
- * which doesn't have to be redrawn when the selection changes
- */
- private void createBackgroundImage()
- {
- int width = getWidth();
- int height = getHeight();
- int x, y;
- int lastX = 0, lastY = 0;
- // Initialise image
- if (_image == null || _image.getWidth() != width || _image.getHeight() != height) {
- _image = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB);
- }
- Graphics bufferedG = _image.getGraphics();
- super.paint(bufferedG);
-
- // Loop and show all points
- int numPoints = _track.getNumPoints();
- bufferedG.setColor(COLOR_POINT);
- int halfWidth = width/2;
- int halfHeight = height/2;
- boolean currPointTrackpoint = false, lastPointTrackpoint = false;
- for (int i=0; i<numPoints; i++)
- {
- x = halfWidth + (int) ((_track.getX(i) - _offsetX) / _scale * _zoomScale);
- y = halfHeight - (int) ((_track.getY(i) - _offsetY) / _scale * _zoomScale);
- if (x > BORDER_WIDTH && x < (width - BORDER_WIDTH)
- && y < (height - BORDER_WIDTH) && y > BORDER_WIDTH)
- {
- // draw block for point (a bit faster than circles)
- bufferedG.drawRect(x - 2, y - 2, 3, 3);
-
- // See whether to connect the point with previous one or not
- DataPoint point = _track.getPoint(i);
- currPointTrackpoint = !point.isWaypoint() && point.getPhoto() == null;
- if (_connectPointsMenuItem.isSelected() && currPointTrackpoint && lastPointTrackpoint
- && !point.getSegmentStart())
- {
- bufferedG.drawLine(lastX, lastY, x, y);
- }
- lastPointTrackpoint = currPointTrackpoint;
- }
- else {
- lastPointTrackpoint = false;
- }
- lastX = x; lastY = y;
- }
-
- // Loop again and show waypoints with names
- bufferedG.setColor(COLOR_WAYPT_NAME);
- FontMetrics fm = bufferedG.getFontMetrics();
- int nameHeight = fm.getHeight();
- int numWaypointNamesShown = 0;
- for (int i=0; i<numPoints; i++)
- {
- DataPoint point = _track.getPoint(i);
- String waypointName = point.getWaypointName();
- if (waypointName != null && !waypointName.equals(""))
- {
- // escape if nothing more to do
- if (numWaypointNamesShown >= LIMIT_WAYPOINT_NAMES || _image == null) {break;}
- // calculate coordinates of point
- x = halfWidth + (int) ((_track.getX(i) - _offsetX) / _scale * _zoomScale);
- y = halfHeight - (int) ((_track.getY(i) - _offsetY) / _scale * _zoomScale);
- if (x > BORDER_WIDTH && x < (width - BORDER_WIDTH)
- && y < (height - BORDER_WIDTH) && y > BORDER_WIDTH)
- {
- bufferedG.fillOval(x - 3, y - 3, 6, 6);
- // Figure out where to draw name so it doesn't obscure track
- int nameWidth = fm.stringWidth(waypointName);
- if (nameWidth < (width - 2 * BORDER_WIDTH))
- {
- boolean drawnName = false;
- // Make arrays for coordinates right left up down
- int[] nameXs = {x + 2, x - nameWidth - 2, x - nameWidth/2, x - nameWidth/2};
- int[] nameYs = {y + (nameHeight/2), y + (nameHeight/2), y - 2, y + 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] > BORDER_WIDTH && (nameXs[a] + nameWidth) < (width - BORDER_WIDTH)
- && nameYs[a] < (height - BORDER_WIDTH) && (nameYs[a] - nameHeight) > BORDER_WIDTH
- && !overlapsPoints(nameXs[a], nameYs[a], nameWidth, nameHeight))
- {
- // Found a rectangle to fit - draw name here and quit
- bufferedG.drawString(waypointName, nameXs[a], nameYs[a]);
- drawnName = true;
- break;
- }
- }
- }
- }
- }
- }
- }
- bufferedG.dispose();
- }
-
-
- /**
- * Tests whether there are any data points within the specified x,y rectangle
- * @param inX left X coordinate
- * @param inY bottom Y coordinate
- * @param inWidth width of rectangle
- * @param inHeight height of rectangle
- * @return true if there's at least one data point in the rectangle
- */
- private boolean overlapsPoints(int inX, int inY, int inWidth, int inHeight)
- {
- try
- {
- // loop over x coordinate of rectangle
- for (int x=0; x<inWidth; x++)
- {
- // loop over y coordinate of rectangle
- for (int y=0; y<inHeight; y++)
- {
- int pixelColor = _image.getRGB(inX + x, inY - y);
- if (pixelColor != -1) return true;
- }
- }
- }
- catch (NullPointerException e) {
- // ignore null pointers, just return false
- }
- return false;
- }
-
-
- /**
- * Make the popup menu for right-clicking the map
- */
- private void makePopup()
- {
- _popup = new JPopupMenu();
- JMenuItem zoomIn = new JMenuItem(I18nManager.getText("menu.map.zoomin"));
- zoomIn.addActionListener(new ActionListener() {
- public void actionPerformed(ActionEvent e)
- {
- zoomMap(true);
- }});
- zoomIn.setEnabled(true);
- _popup.add(zoomIn);
- JMenuItem zoomOut = new JMenuItem(I18nManager.getText("menu.map.zoomout"));
- zoomOut.addActionListener(new ActionListener() {
- public void actionPerformed(ActionEvent e)
- {
- zoomMap(false);
- }});
- zoomOut.setEnabled(true);
- _popup.add(zoomOut);
- JMenuItem zoomFull = new JMenuItem(I18nManager.getText("menu.map.zoomfull"));
- zoomFull.addActionListener(new ActionListener() {
- public void actionPerformed(ActionEvent e)
- {
- zoomToFullScale();
- }});
- zoomFull.setEnabled(true);
- _popup.add(zoomFull);
- _connectPointsMenuItem = new JCheckBoxMenuItem(I18nManager.getText("menu.map.connect"));
- _connectPointsMenuItem.addActionListener(new ActionListener() {
- public void actionPerformed(ActionEvent e)
- {
- // redraw map
- dataUpdated(DataSubscriber.ALL);
- }
- });
- _connectPointsMenuItem.setSelected(true);
- _popup.add(_connectPointsMenuItem);
- _autoPanMenuItem = new JCheckBoxMenuItem(I18nManager.getText("menu.map.autopan"));
- _autoPanMenuItem.setSelected(true);
- _popup.add(_autoPanMenuItem);
- }
-
-
- /**
- * Zoom map to full scale
- */
- private void zoomToFullScale()
- {
- _zoomScale = 1.0;
- _offsetX = 0.0;
- _offsetY = 0.0;
- _numPoints = 0;
- dataUpdated(DataSubscriber.ALL);
- }
-
-
- /**
- * Zoom map either in or out by one step
- * @param inZoomIn true to zoom in, false for out
- */
- private void zoomMap(boolean inZoomIn)
- {
- if (inZoomIn)
- {
- // Zoom in
- _zoomScale *= ZOOM_SCALE_FACTOR;
- }
- else
- {
- // Zoom out
- _zoomScale /= ZOOM_SCALE_FACTOR;
- if (_zoomScale < 0.5) _zoomScale = 0.5;
- }
- _numPoints = 0;
- dataUpdated(DataSubscriber.ALL);
- }
-
-
- /**
- * Pan the map by the specified amounts
- * @param inUp upwards pan
- * @param inRight rightwards pan
- */
- private void panMap(int inUp, int inRight)
- {
- double panFactor = _scale / _zoomScale;
- _offsetY = _offsetY + (inUp * panFactor);
- _offsetX = _offsetX - (inRight * panFactor);
- // Limit pan to sensible range??
- _numPoints = 0;
- _image = null;
- repaint();
- }
-
-
- /**
- * React to click on map display
- * @param inE mouse event
- */
- public void mouseClicked(MouseEvent inE)
- {
- this.requestFocus();
- if (_track != null)
- {
- int xClick = inE.getX();
- int yClick = inE.getY();
- // Check click is within main area (not in border)
- if (xClick > BORDER_WIDTH && yClick > BORDER_WIDTH && xClick < (getWidth() - BORDER_WIDTH)
- && yClick < (getHeight() - BORDER_WIDTH))
- {
- // Check left click or right click
- if (inE.isMetaDown())
- {
- // Only show popup if track has data
- if (_track != null && _track.getNumPoints() > 0)
- _popup.show(this, xClick, yClick);
- }
- else
- {
- // Find point within range of click point
- double pointX = (xClick - getWidth()/2) * _scale / _zoomScale + _offsetX;
- double pointY = (getHeight()/2 - yClick) * _scale / _zoomScale + _offsetY;
- int selectedPointIndex = _track.getNearestPointIndex(
- pointX, pointY, CLICK_SENSITIVITY * _scale, false);
- // Select the given point (or deselect if no point was found)
- _trackInfo.getSelection().selectPoint(selectedPointIndex);
- }
- }
- }
- }
-
-
- /**
- * Respond to mouse released to reset dragging
- * @see java.awt.event.MouseListener#mouseReleased(java.awt.event.MouseEvent)
- */
- public void mouseReleased(MouseEvent e)
- {
- _dragStartX = _dragStartY = -1;
- if (e.isMetaDown())
- {
- if (_zoomDragFromX >= 0 || _zoomDragFromY >= 0)
- {
- // zoom area marked out - calculate offset and zoom
- int xPan = (getWidth() - _zoomDragFromX - e.getX()) / 2;
- int yPan = (getHeight() - _zoomDragFromY - e.getY()) / 2;
- double xZoom = Math.abs(getWidth() * 1.0 / (e.getX() - _zoomDragFromX));
- double yZoom = Math.abs(getHeight() * 1.0 / (e.getY() - _zoomDragFromY));
- double extraZoom = (xZoom>yZoom?yZoom:xZoom);
- // deselect point if selected (to stop autopan)
- _trackInfo.getSelection().selectPoint(-1);
- // Pan first to ensure pan occurs with correct scale
- panMap(yPan, xPan);
- // Then zoom in and request repaint
- _zoomScale = _zoomScale * extraZoom;
- _image = null;
- repaint();
- }
- _zoomDragFromX = _zoomDragFromY = -1;
- _zoomDragging = false;
- }
- }
-
-
- /**
- * Respond to mouse wheel events to zoom the map
- * @see java.awt.event.MouseWheelListener#mouseWheelMoved(java.awt.event.MouseWheelEvent)
- */
- public void mouseWheelMoved(MouseWheelEvent e)
- {
- zoomMap(e.getWheelRotation() < 0);
- }
-
-
- /**
- * @see java.awt.event.KeyListener#keyPressed(java.awt.event.KeyEvent)
- */
- public void keyPressed(KeyEvent e)
- {
- int code = e.getKeyCode();
- // Check for meta key
- if (e.isControlDown())
- {
- // Check for arrow keys to zoom in and out
- if (code == KeyEvent.VK_UP)
- zoomMap(true);
- else if (code == KeyEvent.VK_DOWN)
- zoomMap(false);
- // Key nav for next/prev point
- else if (code == KeyEvent.VK_LEFT)
- _trackInfo.getSelection().selectPreviousPoint();
- else if (code == KeyEvent.VK_RIGHT)
- _trackInfo.getSelection().selectNextPoint();
- }
- else
- {
- // Check for arrow keys to pan
- int upwardsPan = 0;
- if (code == KeyEvent.VK_UP)
- upwardsPan = PAN_DISTANCE;
- else if (code == KeyEvent.VK_DOWN)
- upwardsPan = -PAN_DISTANCE;
- int rightwardsPan = 0;
- if (code == KeyEvent.VK_RIGHT)
- rightwardsPan = -PAN_DISTANCE;
- else if (code == KeyEvent.VK_LEFT)
- rightwardsPan = PAN_DISTANCE;
- panMap(upwardsPan, rightwardsPan);
- // Check for delete key to delete current point
- if (code == KeyEvent.VK_DELETE && _trackInfo.getSelection().getCurrentPointIndex() >= 0)
- {
- _app.deleteCurrentPoint();
- // reset last selected point to trigger autopan
- _lastSelectedPoint = -1;
- }
- }
- }
-
-
- /**
- * @see java.awt.event.KeyListener#keyReleased(java.awt.event.KeyEvent)
- */
- public void keyReleased(KeyEvent e)
- {
- // ignore
- }
-
-
- /**
- * @see java.awt.event.KeyListener#keyTyped(java.awt.event.KeyEvent)
- */
- public void keyTyped(KeyEvent e)
- {
- // ignore
- }
-
-
- /**
- * @see java.awt.event.MouseMotionListener#mouseDragged(java.awt.event.MouseEvent)
- */
- public void mouseDragged(MouseEvent e)
- {
- if (!e.isMetaDown())
- {
- if (_dragStartX > 0)
- {
- int xShift = e.getX() - _dragStartX;
- int yShift = e.getY() - _dragStartY;
- panMap(yShift, xShift);
- }
- _dragStartX = e.getX();
- _dragStartY = e.getY();
- }
- else
- {
- // Right click-and-drag for zoom
- if (_zoomDragFromX < 0 || _zoomDragFromY < 0)
- {
- _zoomDragFromX = e.getX();
- _zoomDragFromY = e.getY();
- }
- else
- {
- _zoomDragToX = e.getX();
- _zoomDragToY = e.getY();
- _zoomDragging = true;
- }
- repaint();
- }
- }
-
-
- /**
- * @see java.awt.event.MouseMotionListener#mouseMoved(java.awt.event.MouseEvent)
- */
- public void mouseMoved(MouseEvent e)
- {
- // ignore
- }
-}
projects / GpsPrune.git / blobdiff