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rendering performance optimization

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This commit is contained in:
Bane Stojkovic
2025-05-08 22:55:52 +02:00
parent b2dcf354e6
commit e4f7fb40d7
8 changed files with 63 additions and 40 deletions
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diylc/diylc-core/src/main/java/org/diylc/presenter/G2DWrapper.java
+21 -3
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@@ -63,6 +63,7 @@ import java.util.List;
import java.util.Map;
import java.util.Map.Entry;
import org.apache.log4j.Logger;
import org.diylc.common.ObjectCache;
import org.diylc.common.ZoomableStroke;
import org.diylc.core.IDrawingObserver;
@@ -79,9 +80,14 @@ import org.diylc.core.IDrawingObserver;
class G2DWrapper extends Graphics2D implements IDrawingObserver {
public static int LINE_SENSITIVITY_MARGIN = 2;
public static int CURVE_SENSITIVITY = 6;
public static int CURVE_SENSITIVITY = 6;
private static final Logger LOG = Logger.getLogger(G2DWrapper.class);
public static String DEBUG_AREA_PERFORMANCE = "org.diylc.debugAreaPerformance";
private boolean drawingComponent = false;
private final boolean debugAreaPerformance;
private boolean trackingAllowed = true;
private boolean trackingContinuityAllowed = false;
private boolean trackingContinuityPositive = true;
@@ -115,6 +121,8 @@ class G2DWrapper extends Graphics2D implements IDrawingObserver {
public G2DWrapper(Graphics2D canvasGraphics, double zoom) {
super();
this.canvasGraphics = canvasGraphics;
String debugAreaPerformanceStr = System.getProperty(DEBUG_AREA_PERFORMANCE);
debugAreaPerformance = "true".equalsIgnoreCase(debugAreaPerformanceStr);
this.zoom = zoom;
currentArea = new Area();
continuityPositiveAreas = new HashMap<String, Area>();
@@ -236,8 +244,18 @@ class G2DWrapper extends Graphics2D implements IDrawingObserver {
Area area = new Area(s);
area.transform(currentTx);
if (trackingAllowed)
currentArea.add(area);
Area areaBefore = null;
if (debugAreaPerformance) {
areaBefore = new Area(currentArea);
}
if (trackingAllowed) {
currentArea.add(area);
if (debugAreaPerformance && currentArea.equals(areaBefore)) {
LOG.warn("Detected unnecessary shape tracking at", new Throwable());
}
}
Map<String, Area> toAdd;
if (trackingContinuityAllowed) {