JAL-3210 Improvements to eclipse detection. New src tree and SwingJS updated from...

[jalview.git] / src / jalview / viewmodel / OverviewDimensions.java

diff --git a/src/jalview/viewmodel/OverviewDimensions.java b/src/jalview/viewmodel/OverviewDimensions.java
index 7ac07ac..8dc7dd8 100644 (file)
--- a/src/jalview/viewmodel/OverviewDimensions.java
+++ b/src/jalview/viewmodel/OverviewDimensions.java
@@ -26,7 +26,9 @@ import jalview.datamodel.AlignmentI;
 import jalview.datamodel.HiddenColumns;
 import jalview.datamodel.HiddenSequences;
 
+import java.awt.Dimension;
 import java.awt.Graphics;
+import java.awt.Rectangle;
 
 public abstract class OverviewDimensions
 {
@@ -58,6 +60,12 @@ public abstract class OverviewDimensions
 
   protected int alheight;
 
+  protected float widthRatio;
+
+  protected float heightRatio;
+
+  private Rectangle vpbox = new Rectangle();
+
   /**
    * Create an OverviewDimensions object
    * 
@@ -67,17 +75,23 @@ public abstract class OverviewDimensions
    *          true if the annotation panel is to be shown, false otherwise
    */
   public OverviewDimensions(ViewportRanges ranges,
-          boolean showAnnotationPanel)
+          boolean showAnnotationPanel, Dimension dim)
   {
+    if (!showAnnotationPanel)
+    {
+      graphHeight = 0;
+    }
+
     // scale the initial size of overviewpanel to shape of alignment
     float initialScale = (float) ranges.getAbsoluteAlignmentWidth()
             / (float) ranges.getAbsoluteAlignmentHeight();
 
-    if (!showAnnotationPanel)
+    if (dim != null)
     {
-      graphHeight = 0;
+      width = dim.width;
+      sequencesHeight = dim.height;
+      return;
     }
-
     if (ranges.getAbsoluteAlignmentWidth() > ranges
             .getAbsoluteAlignmentHeight())
     {
@@ -110,6 +124,9 @@ public abstract class OverviewDimensions
    */
   public void drawBox(Graphics g)
   {
+    // System.out.println("OD drawBox " + boxX + " " + boxY + " " + boxWidth
+    // + " " + boxHeight);
+    updateBox();
     g.drawRect(boxX, boxY, boxWidth, boxHeight);
     g.drawRect(boxX + 1, boxY + 1, boxWidth - 2, boxHeight - 2);
   }
@@ -157,23 +174,28 @@ public abstract class OverviewDimensions
   public float getPixelsPerCol()
   {
     resetAlignmentDims();
-    return (float) width / alwidth;
+    return 1 / widthRatio;
   }
 
   public float getPixelsPerSeq()
   {
     resetAlignmentDims();
-    return (float) sequencesHeight / alheight;
+    return 1 / heightRatio;
   }
 
   public void setWidth(int w)
   {
     width = w;
+    widthRatio = (float) alwidth / width;
   }
 
   public void setHeight(int h)
   {
+    // BH 2019 problem was that component.resize() can come
+    // after setBoxPosition().
+    // Solution was to move setting of box dimensions to paint
     sequencesHeight = h - graphHeight;
+    heightRatio = (float) alheight / sequencesHeight;
   }
 
   /**
@@ -192,6 +214,44 @@ public abstract class OverviewDimensions
           HiddenSequences hiddenSeqs, HiddenColumns hiddenCols);
 
   /**
+   * Update the viewport location from a mouse drag within the overview's box
+   * 
+   * @param mousex
+   *          x location of mouse
+   * @param mousey
+   *          y location of mouse
+   * @param hiddenSeqs
+   *          the alignment's hidden sequences
+   * @param hiddenCols
+   *          the alignment's hidden columns
+   */
+  public abstract void adjustViewportFromMouse(int mousex, int mousey,
+          HiddenSequences hiddenSeqs, HiddenColumns hiddenCols);
+
+  /**
+   * Initialise dragging from the mouse - must be called on initial mouse click
+   * before using adjustViewportFromMouse in drag operations
+   * 
+   * @param mousex
+   *          x location of mouse
+   * @param mousey
+   *          y location of mouse
+   * @param hiddenSeqs
+   *          the alignment's hidden sequences
+   * @param hiddenCols
+   *          the alignment's hidden columns
+   */
+  public abstract void setDragPoint(int x, int y,
+          HiddenSequences hiddenSeqs, HiddenColumns hiddenCols);
+
+  /*
+   * Move the viewport so that the top left corner of the overview's box 
+   * is at the mouse position (leftx, topy)
+   */
+  protected abstract void updateViewportFromTopLeft(int leftx, int topy,
+          HiddenSequences hiddenSeqs, HiddenColumns hiddenCols);
+
+  /**
    * Set the overview panel's box position to match the viewport
    * 
    * @param hiddenSeqs
@@ -225,20 +285,56 @@ public abstract class OverviewDimensions
    */
   protected abstract void resetAlignmentDims();
 
+  /*
+   * Given the box coordinates in residues and sequences, set the box dimensions in the overview window
+   */
   protected void setBoxPosition(int startRes, int startSeq, int vpwidth,
           int vpheight)
   {
     resetAlignmentDims();
+    vpbox = new Rectangle(startRes, startSeq, vpwidth, vpheight);
+    updateBox();
+  }
 
+  public void updateBox()
+  {
     // boxX, boxY is the x,y location equivalent to startRes, startSeq
-    int xPos = Math.min(startRes, alwidth - vpwidth + 1);
-    boxX = Math.round((float) xPos * width / alwidth);
-    boxY = Math.round((float) startSeq * sequencesHeight / alheight);
+    int xPos = Math.min(vpbox.x, alwidth - vpbox.width + 1);
+    boxX = Math.round(xPos / widthRatio);
+    boxY = Math.round(vpbox.y / heightRatio);
 
     // boxWidth is the width in residues translated to pixels
-    boxWidth = Math.round((float) vpwidth * width / alwidth);
+    boxWidth = Math.max(1, Math.round(vpbox.width / widthRatio));
 
     // boxHeight is the height in sequences translated to pixels
-    boxHeight = Math.round((float) vpheight * sequencesHeight / alheight);
+    boxHeight = Math.max(1, Math.round(vpbox.height / heightRatio));
   }
+
+  /**
+   * Answers if a mouse position is in the overview's red box
+   * 
+   * @param x
+   *          mouse x position
+   * @param y
+   *          mouse y position
+   * @return true if (x,y) is inside the box
+   */
+  public boolean isPositionInBox(int x, int y)
+  {
+    return (x > boxX && y > boxY && x < boxX + boxWidth
+            && y < boxY + boxHeight);
+  }
+
+  /*
+   * Given the centre x position, calculate the box's left x position
+   */
+  protected abstract int getLeftXFromCentreX(int mousex,
+          HiddenColumns hidden);
+
+  /*
+   * Given the centre y position, calculate the box's top y position
+   */
+  protected abstract int getTopYFromCentreY(int mousey,
+          HiddenSequences hidden);
+
 }
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