Changeset 3783 in josm

Timestamp:

2011-01-10T21:50:46+01:00 (14 years ago)

Author:

jttt

Message:

Fix #5814 middleclick on way getting drawn locks josm completely

File:

• trunk/src/org/openstreetmap/josm/gui/MapStatus.java (modified) (2 diffs)

trunk/src/org/openstreetmap/josm/gui/MapStatus.java

@@ -145 +145 @@
                 for (;;) {
 
-                    MouseState ms = new MouseState();
+                    final MouseState ms = new MouseState();
                     synchronized (this) {
                         // TODO Would be better if the timeout wasn't necessary
@@ -160 +160 @@
                     }
 
-                    // Freeze display when holding down CTRL
-                    if ((ms.modifiers & MouseEvent.CTRL_DOWN_MASK) != 0) {
-                        // update the information popup's labels though, because
-                        // the selection might have changed from the outside
-                        popupUpdateLabels();
-                        continue;
-                    }
-
-                    // This try/catch is a hack to stop the flooding bug reports about this.
-                    // The exception needed to handle with in the first place, means that this
-                    // access to the data need to be restarted, if the main thread modifies
-                    // the data.
-                    DataSet ds = null;
-                    // The popup != null check is required because a left-click
-                    // produces several events as well, which would make this
-                    // variable true. Of course we only want the popup to show
-                    // if the middle mouse button has been pressed in the first
-                    // place
-                    boolean isAtOldPosition = (oldMousePos != null
-                            && oldMousePos.equals(ms.mousePos)
-                            && popup != null);
-                    boolean middleMouseDown = (ms.modifiers & MouseEvent.BUTTON2_DOWN_MASK) != 0;
                     try {
-                        ds = mv.getCurrentDataSet();
-                        if (ds != null) {
-                            // This is not perfect, if current dataset was changed during execution, the lock would be useless
-                            if(isAtOldPosition && middleMouseDown) {
-                                // Write lock is necessary when selecting in popupCycleSelection
-                                // locks can not be upgraded -> if do read lock here and write lock later (in OsmPrimitive.updateFlags)
-                                // then always occurs deadlock (#5814)
-                                ds.beginUpdate();
-                            } else {
-                                ds.getReadLock().lock();
+                        EventQueue.invokeAndWait(new Runnable() {
+
+                            @Override
+                            public void run() {
+                                // Freeze display when holding down CTRL
+                                if ((ms.modifiers & MouseEvent.CTRL_DOWN_MASK) != 0) {
+                                    // update the information popup's labels though, because
+                                    // the selection might have changed from the outside
+                                    popupUpdateLabels();
+                                    return;
+                                }
+
+                                // This try/catch is a hack to stop the flooding bug reports about this.
+                                // The exception needed to handle with in the first place, means that this
+                                // access to the data need to be restarted, if the main thread modifies
+                                // the data.
+                                DataSet ds = null;
+                                // The popup != null check is required because a left-click
+                                // produces several events as well, which would make this
+                                // variable true. Of course we only want the popup to show
+                                // if the middle mouse button has been pressed in the first
+                                // place
+                                boolean isAtOldPosition = (oldMousePos != null
+                                        && oldMousePos.equals(ms.mousePos)
+                                        && popup != null);
+                                boolean middleMouseDown = (ms.modifiers & MouseEvent.BUTTON2_DOWN_MASK) != 0;
+                                try {
+                                    ds = mv.getCurrentDataSet();
+                                    if (ds != null) {
+                                        // This is not perfect, if current dataset was changed during execution, the lock would be useless
+                                        if(isAtOldPosition && middleMouseDown) {
+                                            // Write lock is necessary when selecting in popupCycleSelection
+                                            // locks can not be upgraded -> if do read lock here and write lock later (in OsmPrimitive.updateFlags)
+                                            // then always occurs deadlock (#5814)
+                                            ds.beginUpdate();
+                                        } else {
+                                            ds.getReadLock().lock();
+                                        }
+                                    }
+
+                                    // Set the text label in the bottom status bar
+                                    statusBarElementUpdate(ms);
+
+
+                                    // Popup Information
+                                    // display them if the middle mouse button is pressed and
+                                    // keep them until the mouse is moved
+                                    if (middleMouseDown || isAtOldPosition)
+                                    {
+                                        Collection<OsmPrimitive> osms = mv.getAllNearest(ms.mousePos, OsmPrimitive.isUsablePredicate);
+
+                                        if (osms == null)
+                                            return;
+
+                                        final JPanel c = new JPanel(new GridBagLayout());
+                                        final JLabel lbl = new JLabel(
+                                                "<html>"+tr("Middle click again to cycle through.<br>"+
+                                                "Hold CTRL to select directly from this list with the mouse.<hr>")+"</html>",
+                                                null,
+                                                JLabel.HORIZONTAL
+                                        );
+                                        lbl.setHorizontalAlignment(JLabel.LEFT);
+                                        c.add(lbl, GBC.eol().insets(2, 0, 2, 0));
+
+                                        // Only cycle if the mouse has not been moved and the
+                                        // middle mouse button has been pressed at least twice
+                                        // (the reason for this is the popup != null check for
+                                        // isAtOldPosition, see above. This is a nice side
+                                        // effect though, because it does not change selection
+                                        // of the first middle click)
+                                        if(isAtOldPosition && middleMouseDown) {
+                                            // Hand down mouse modifiers so the SHIFT mod can be
+                                            // handled correctly (see funcion)
+                                            popupCycleSelection(osms, ms.modifiers);
+                                        }
+
+                                        // These labels may need to be updated from the outside
+                                        // so collect them
+                                        List<JLabel> lbls = new ArrayList<JLabel>();
+                                        for (final OsmPrimitive osm : osms) {
+                                            JLabel l = popupBuildPrimitiveLabels(osm);
+                                            lbls.add(l);
+                                            c.add(l, GBC.eol().fill(GBC.HORIZONTAL).insets(2, 0, 2, 2));
+                                        }
+
+                                        popupShowPopup(popupCreatePopup(c, ms), lbls);
+                                    } else {
+                                        popupHidePopup();
+                                    }
+
+                                    oldMousePos = ms.mousePos;
+                                } catch (ConcurrentModificationException x) {
+                                    //x.printStackTrace();
+                                } catch (NullPointerException x) {
+                                    //x.printStackTrace();
+                                } finally {
+                                    if (ds != null) {
+                                        if(isAtOldPosition && middleMouseDown) {
+                                            ds.endUpdate();
+                                        } else {
+                                            ds.getReadLock().unlock();
+                                        }
+                                    }
+                                }
                             }
-                        }
-
-                        // Set the text label in the bottom status bar
-                        statusBarElementUpdate(ms);
-
-
-                        // Popup Information
-                        // display them if the middle mouse button is pressed and
-                        // keep them until the mouse is moved
-                        if (middleMouseDown || isAtOldPosition)
-                        {
-                            Collection<OsmPrimitive> osms = mv.getAllNearest(ms.mousePos, OsmPrimitive.isUsablePredicate);
-
-                            if (osms == null) {
-                                continue;
-                            }
-
-                            final JPanel c = new JPanel(new GridBagLayout());
-                            final JLabel lbl = new JLabel(
-                                    "<html>"+tr("Middle click again to cycle through.<br>"+
-                                    "Hold CTRL to select directly from this list with the mouse.<hr>")+"</html>",
-                                    null,
-                                    JLabel.HORIZONTAL
-                            );
-                            lbl.setHorizontalAlignment(JLabel.LEFT);
-                            c.add(lbl, GBC.eol().insets(2, 0, 2, 0));
-
-                            // Only cycle if the mouse has not been moved and the
-                            // middle mouse button has been pressed at least twice
-                            // (the reason for this is the popup != null check for
-                            // isAtOldPosition, see above. This is a nice side
-                            // effect though, because it does not change selection
-                            // of the first middle click)
-                            if(isAtOldPosition && middleMouseDown) {
-                                // Hand down mouse modifiers so the SHIFT mod can be
-                                // handled correctly (see funcion)
-                                popupCycleSelection(osms, ms.modifiers);
-                            }
-
-                            // These labels may need to be updated from the outside
-                            // so collect them
-                            List<JLabel> lbls = new ArrayList<JLabel>();
-                            for (final OsmPrimitive osm : osms) {
-                                JLabel l = popupBuildPrimitiveLabels(osm);
-                                lbls.add(l);
-                                c.add(l, GBC.eol().fill(GBC.HORIZONTAL).insets(2, 0, 2, 2));
-                            }
-
-                            popupShowPopup(popupCreatePopup(c, ms), lbls);
-                        } else {
-                            popupHidePopup();
-                        }
-
-                        oldMousePos = ms.mousePos;
-                    } catch (ConcurrentModificationException x) {
-                        //x.printStackTrace();
-                    } catch (NullPointerException x) {
-                        //x.printStackTrace();
-                    } finally {
-                        if (ds != null) {
-                            if(isAtOldPosition && middleMouseDown) {
-                                ds.endUpdate();
-                            } else {
-                                ds.getReadLock().unlock();
-                            }
-                        }
+                        });
+                    } catch (Exception e) {
+
                     }
                 }