+++ /dev/null
-package org.simantics.maps.sg;
-
-import java.awt.AlphaComposite;
-import java.awt.BasicStroke;
-import java.awt.Color;
-import java.awt.Font;
-import java.awt.FontMetrics;
-import java.awt.Graphics2D;
-import java.awt.geom.AffineTransform;
-import java.awt.geom.Point2D;
-import java.awt.geom.Rectangle2D;
-import java.util.Locale;
-
-import org.simantics.g2d.participant.MouseUtil;
-import org.simantics.g2d.participant.MouseUtil.MouseInfo;
-import org.simantics.maps.elevation.server.SingletonTiffTileInterface;
-import org.simantics.scenegraph.g2d.G2DNode;
-import org.simantics.scenegraph.utils.DPIUtil;
-
-public class MapLocationZoomInfoNode extends G2DNode {
-
- private static final long serialVersionUID = 7994492218791569147L;
-
- private static final Color GRAY = new Color(100, 100, 100);
-
- protected boolean enabled = true;
-
- private MouseUtil util;
-
- @Override
- public void render(Graphics2D g2d) {
- if (!enabled)
- return;
-
- AffineTransform ot = g2d.getTransform();
- Color originalColor = g2d.getColor();
- g2d.transform(transform);
-
- g2d.setTransform(new AffineTransform());
- // do the rendering magic
-
- Font rulerFont = new Font("Tahoma", Font.PLAIN, DPIUtil.upscale(9));
-
- //g.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
- g2d.setStroke(new BasicStroke(1));
- g2d.setColor(new Color(0.9f, 0.9f, 0.9f, 0.75f));
-
- Rectangle2D bounds = g2d.getClipBounds();
- if (bounds == null)
- return; // FIXME
-
- MouseInfo mouseInfo = util.getMouseInfo(0);
-
- double startLat;
- double startLon;
- if (mouseInfo != null && mouseInfo.canvasPosition != null) {
- Point2D canvasPosition = mouseInfo.canvasPosition;
- double cx = canvasPosition.getX();
- double cy = canvasPosition.getY();
-
- startLat = yToLatitude(-cy / transform.getScaleY());
- startLon = xToLongitude(cx / transform.getScaleX());
- } else {
- startLat = 0;
- startLon = 0;
- }
- Number zoomLevel = SingletonTiffTileInterface.lookup(startLat, startLon);
- String str = "X: " + formatValue(startLon, MAX_DIGITS) + ", Y: " + formatValue(startLat, MAX_DIGITS) + ", Z: " + zoomLevel;
- g2d.setFont(rulerFont);
- FontMetrics fm = g2d.getFontMetrics();
- Rectangle2D r = fm.getStringBounds(str, g2d);
-
- double pixels = r.getWidth() + 10;
- double scaleRight = bounds.getMaxX() - 20;
- double newScaleLeft = scaleRight - pixels;
- double y = bounds.getMaxY() - 65;
- g2d.setComposite(AlphaComposite.getInstance(AlphaComposite.SRC_OVER, 0.8f));
-
-
- Rectangle2D vertical = new Rectangle2D.Double(newScaleLeft, y, pixels, 20);
- g2d.fill(vertical);
-
- g2d.setColor(GRAY);
- g2d.setFont(rulerFont);
-
-
- g2d.setColor(Color.BLACK);
- g2d.drawString(str, (int)newScaleLeft + 5, (int)y + 15);
-
- g2d.setColor(originalColor);
- g2d.setTransform(ot);
- }
-
- @Override
- public Rectangle2D getBoundsInLocal() {
- return null;
- }
-
- public boolean isEnabled() {
- return enabled;
- }
-
- public void setEnabled(boolean enabled) {
- this.enabled = enabled;
- }
-
- public void setMouseUtil(MouseUtil util) {
- this.util = util;
- }
-
- private static final transient int MAX_DIGITS = 7;
- private static final transient double EPSILON = 0.01;
- private static final transient double TRIM_THRESHOLD_MAX_VALUE = Math.pow(10, 4);
- private static final transient String[] SI_UNIT_LARGE_PREFIXES = {
- "k", "M", "G", "T", "P", "E", "Z", "Y"
- };
-
- private static String formatValue(double value, int maxDigits) {
- int magnitude = (int) Math.round(Math.log10(value));
- //System.out.println("magnitude: " + magnitude + ", " + value);
- int allowedDecimals = maxDigits;
- allowedDecimals -= Math.abs(magnitude);
- if (allowedDecimals < 0)
- allowedDecimals = 0;
-
- String valueStr = String.format(Locale.US, "%." + allowedDecimals + "f", value);
- if (allowedDecimals > 0) {
- for (int trunc = valueStr.length() - 1; trunc > 0; --trunc) {
- char ch = valueStr.charAt(trunc);
- if (ch == '.') {
- valueStr = valueStr.substring(0, trunc);
- break;
- }
- if (valueStr.charAt(trunc) != '0') {
- valueStr = valueStr.substring(0, trunc + 1);
- break;
- }
- }
- if (Math.abs(value) + EPSILON > TRIM_THRESHOLD_MAX_VALUE) {
- // Cut anything beyond a possible decimal dot out since they
- // should not show anyway. This is a complete hack that tries to
- // circumvent floating-point inaccuracy problems.
- int dotIndex = valueStr.lastIndexOf('.');
- if (dotIndex > -1) {
- valueStr = valueStr.substring(0, dotIndex);
- }
- }
- }
-
- double trimValue = value;
- if (Math.abs(value)+EPSILON >= TRIM_THRESHOLD_MAX_VALUE) {
- for (int i = 0; Math.abs(trimValue)+EPSILON >= TRIM_THRESHOLD_MAX_VALUE; ++i) {
- double trim = trimValue / 1000;
- if (Math.abs(trim)-EPSILON < TRIM_THRESHOLD_MAX_VALUE) {
- valueStr = valueStr.substring(0, valueStr.length() - (i + 1) * 3);
- valueStr += SI_UNIT_LARGE_PREFIXES[i];
- break;
- }
- trimValue = trim;
- }
- }
-
- if (valueStr.equals("-0"))
- valueStr = "0";
-
- return valueStr;
- }
-
- // TODO: these only work with Spherical Mercator
- private static double xToLongitude(double x) {
- return x;
- }
-
- private static double yToLatitude(double y) {
- double rad = Math.toRadians(y);
- double sinh = Math.sinh(rad);
- double atan = Math.atan(sinh);
- double finald = Math.toDegrees(atan);
- return finald;
- }
-}
Code Review / simantics / district.git / blobdiff