protected int alheight;
+ protected float widthRatio;
+
+ protected float heightRatio;
+
/**
* Create an OverviewDimensions object
*
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)
{
sequencesHeight = h - graphHeight;
+ heightRatio = (float) alheight / sequencesHeight;
}
/**
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
*/
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)
{
// 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);
+ boxX = Math.round(xPos / widthRatio);
+ boxY = Math.round(startSeq / heightRatio);
// boxWidth is the width in residues translated to pixels
- boxWidth = Math.round((float) vpwidth * width / alwidth);
+ boxWidth = Math.round(vpwidth / widthRatio);
// boxHeight is the height in sequences translated to pixels
- boxHeight = Math.round((float) vpheight * sequencesHeight / alheight);
+ boxHeight = Math.round(vpheight / 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);
+
}
\ No newline at end of file