Changeset 631 in josm

Timestamp:

2008-05-11T03:05:11+02:00 (17 years ago)

Author:

framm

Message:

• polygon drawing performance increases by Daniel Naber <list2006@…>

Location:

trunk/src/org/openstreetmap/josm

Files:

• data/osm/visitor/MapPaintVisitor.java (modified) (1 diff)
• gui/layer/OsmDataLayer.java (modified) (2 diffs)

trunk/src/org/openstreetmap/josm/data/osm/visitor/MapPaintVisitor.java

@@ -182 +182 @@
                         }
                         orderNumber++;
-                        //  drawSegment(lastN, n, w.selected && !inactive ? selectedColor : wayColor, showDirectionArrow);
-
-                        if (area && fillAreas)
-                                //Draw segments in a different colour so direction arrows show against the fill
-                                drawSeg(lastN, n, w.selected ? selectedColor : untaggedColor, showDirection, width, true);
-                        else
-                                if (area)
+
+                        if (area && fillAreas) {
+                // hack to make direction arrows visible against filled background
+                                if (showDirection)
+                                    drawSeg(lastN, n, w.selected ? selectedColor : untaggedColor, showDirection, width, true);
+                        } else {
+                                if (area) {
                                         drawSeg(lastN, n, w.selected ? selectedColor : colour, showDirection, width, true);
-                                else
-                                        if (realWidth > 0 && useRealWidth && !showDirection){
+                                } else {
+                                        if (realWidth > 0 && useRealWidth && !showDirection) {
                                                 int tmpWidth = (int) (100 /  (float) (circum / realWidth));
                                                 if (tmpWidth > width) width = tmpWidth;
                                         }
+                }
+            }
 
                         drawSeg(lastN, n, w.selected ? selectedColor : colour, showDirection, width, dashed);

trunk/src/org/openstreetmap/josm/gui/layer/OsmDataLayer.java

@@ -10 +10 @@
 import java.awt.Graphics;
 import java.awt.GridBagLayout;
+import java.awt.image.BufferedImage;
 import java.awt.Point;
+import java.awt.Transparency;
 import java.awt.event.ActionEvent;
+import java.awt.image.BufferedImage;
 import java.io.File;
 import java.util.Collection;
@@ -172 +175 @@
                 else
                 {
-                        standardMapPainter.setGraphics(g);
-                        standardMapPainter.setNavigatableComponent(mv);
-                        standardMapPainter.inactive = inactive;
-                        standardMapPainter.visitAll(data);
+            // MapPaintVisitor paints calls fillPolygon() with an alpha
+            // channel -- this is slow, speed it up by rendering to a BufferedImage:
+            BufferedImage bim = new BufferedImage(mv.getWidth(), mv.getHeight(), Transparency.OPAQUE);
+            standardMapPainter.setGraphics(bim.createGraphics());
+            standardMapPainter.setNavigatableComponent(mv);
+            standardMapPainter.inactive = inactive;
+            standardMapPainter.visitAll(data);
+            g.drawImage(bim, 0, 0, null);
                 }
                 Main.map.conflictDialog.paintConflicts(g, mv);