JAL-3648 resize annotation panel after dragging to resize graph height

[jalview.git] / src / jalview / gui / AnnotationPanel.java

diff --git a/src/jalview/gui/AnnotationPanel.java b/src/jalview/gui/AnnotationPanel.java
index 4ead210..f8172dc 100755 (executable)
--- a/src/jalview/gui/AnnotationPanel.java
+++ b/src/jalview/gui/AnnotationPanel.java
@@ -20,22 +20,6 @@
  */
 package jalview.gui;
 
-import jalview.datamodel.AlignmentAnnotation;
-import jalview.datamodel.AlignmentI;
-import jalview.datamodel.Annotation;
-import jalview.datamodel.ColumnSelection;
-import jalview.datamodel.HiddenColumns;
-import jalview.datamodel.SequenceI;
-import jalview.gui.JalviewColourChooser.ColourChooserListener;
-import jalview.renderer.AnnotationRenderer;
-import jalview.renderer.AwtRenderPanelI;
-import jalview.schemes.ResidueProperties;
-import jalview.util.Comparison;
-import jalview.util.MessageManager;
-import jalview.util.Platform;
-import jalview.viewmodel.ViewportListenerI;
-import jalview.viewmodel.ViewportRanges;
-
 import java.awt.AlphaComposite;
 import java.awt.Color;
 import java.awt.Dimension;
@@ -66,6 +50,22 @@ import javax.swing.JPopupMenu;
 import javax.swing.Scrollable;
 import javax.swing.ToolTipManager;
 
+import jalview.datamodel.AlignmentAnnotation;
+import jalview.datamodel.AlignmentI;
+import jalview.datamodel.Annotation;
+import jalview.datamodel.ColumnSelection;
+import jalview.datamodel.HiddenColumns;
+import jalview.datamodel.SequenceI;
+import jalview.gui.JalviewColourChooser.ColourChooserListener;
+import jalview.renderer.AnnotationRenderer;
+import jalview.renderer.AwtRenderPanelI;
+import jalview.schemes.ResidueProperties;
+import jalview.util.Comparison;
+import jalview.util.MessageManager;
+import jalview.util.Platform;
+import jalview.viewmodel.ViewportListenerI;
+import jalview.viewmodel.ViewportRanges;
+
 /**
  * AnnotationPanel displays visible portion of annotation rows below unwrapped
  * alignment
@@ -634,6 +634,10 @@ public class AnnotationPanel extends JPanel implements AwtRenderPanelI,
     mouseDragLastX = -1;
     mouseDragLastY = -1;
     mouseDragging = false;
+    if (dragMode == DragMode.Resize)
+    {
+      ap.adjustAnnotationHeight();
+    }
     dragMode = DragMode.Undefined;
     ap.getScalePanel().mouseReleased(evt);
 
@@ -674,16 +678,25 @@ public class AnnotationPanel extends JPanel implements AwtRenderPanelI,
   }
 
   /**
-   * DOCUMENT ME!
+   * Action on starting or continuing a mouse drag. There are two possible
+   * actions:
+   * <ul>
+   * <li>drag up or down on a graphed annotation increases or decreases the
+   * height of the graph</li>
+   * <li>dragging left or right selects the columns dragged across</li>
+   * </ul>
+   * A drag on a graph annotation is treated as column selection if it starts
+   * with more horizontal than vertical movement, and as resize if it starts
+   * with more vertical than horizontal movement. Once started, the drag does
+   * not change mode.
    * 
    * @param evt
-   *          DOCUMENT ME!
    */
   @Override
   public void mouseDragged(MouseEvent evt)
   {
     /*
-     * todo: if dragMode is Undefined:
+     * if dragMode is Undefined:
      * - set to Select if dx > dy
      * - set to Resize if dy > dx
      * - do nothing if dx == dy
@@ -786,7 +799,9 @@ public class AnnotationPanel extends JPanel implements AwtRenderPanelI,
     if (row > -1 && ann.annotations != null
             && column < ann.annotations.length)
     {
-      setToolTipText(buildToolTip(ann, column, aa));
+      String toolTip = buildToolTip(ann, column, aa);
+      setToolTipText(toolTip == null ? null
+              : JvSwingUtils.wrapTooltip(true, toolTip));
       String msg = getStatusMessage(av.getAlignment(), column, ann);
       ap.alignFrame.setStatus(msg);
     }
@@ -833,7 +848,9 @@ public class AnnotationPanel extends JPanel implements AwtRenderPanelI,
   }
 
   /**
-   * Answers a tooltip for the annotation at the current mouse position
+   * Answers a tooltip for the annotation at the current mouse position, not
+   * wrapped in &lt;html&gt; tags (apply if wanted). Answers null if there is no
+   * tooltip to show.
    * 
    * @param ann
    * @param column
@@ -846,45 +863,33 @@ public class AnnotationPanel extends JPanel implements AwtRenderPanelI,
     if (ann.graphGroup > -1)
     {
       StringBuilder tip = new StringBuilder(32);
-      tip.append("<html>");
+      boolean first = true;
       for (int i = 0; i < anns.length; i++)
       {
         if (anns[i].graphGroup == ann.graphGroup
                 && anns[i].annotations[column] != null)
         {
+          if (!first)
+          {
+            tip.append("<br>");
+          }
+          first = false;
           tip.append(anns[i].label);
           String description = anns[i].annotations[column].description;
           if (description != null && description.length() > 0)
           {
             tip.append(" ").append(description);
           }
-          tip.append("<br>");
         }
       }
-      if (tip.length() != 6)
-      {
-        tip.setLength(tip.length() - 4);
-        tooltip = tip.toString() + "</html>";
-      }
+      tooltip = first ? null : tip.toString();
     }
     else if (column < ann.annotations.length
             && ann.annotations[column] != null)
     {
-      String description = ann.annotations[column].description;
-      if (description != null && description.length() > 0)
-      {
-        tooltip = JvSwingUtils.wrapTooltip(true, description);
-      }
-      else
-      {
-        tooltip = null; // no tooltip if null or empty description
-      }
-    }
-    else
-    {
-      // clear the tooltip.
-      tooltip = null;
+      tooltip = ann.annotations[column].description;
     }
+
     return tooltip;
   }