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alfonx |
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package skrueger.geotools; |
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import java.awt.Color; |
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import java.awt.Graphics; |
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import java.awt.Point; |
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import java.awt.event.MouseEvent; |
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import java.awt.event.MouseWheelEvent; |
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import java.awt.geom.Point2D; |
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import org.opengis.geometry.DirectPosition; |
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public class XMapPaneAction_ZoomIn implements XMapPaneAction { |
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/** |
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* Stores last position of a drag event in window coordinates |
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*/ |
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protected Point lastPos; |
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@Override |
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public void performClick(XMapPane mapPane, MouseEvent ev, |
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DirectPosition coord) { |
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mapPane.zoomTo(ev.getPoint(), 1 / 2.); |
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} |
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@Override |
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public void performDragging(XMapPane mapPane, MouseEvent ev, |
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Point dragStartPos, DirectPosition startCoord, |
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DirectPosition endCoord) { |
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mapPane.drawRectangle(mapPane.getGraphics(), dragStartPos, ev.getPoint()); |
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} |
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@Override |
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public void performWheel(XMapPane mapPane, MouseWheelEvent wheelEvt, |
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DirectPosition coord) { |
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final int units = wheelEvt.getUnitsToScroll(); |
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if (units > 0) |
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mapPane.zoomTo(wheelEvt.getPoint(), 1. + .11 * units); |
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else |
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mapPane.zoomTo(wheelEvt.getPoint(), 2. / -units); |
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} |
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@Override |
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public void performDragged(XMapPane mapPane, MouseEvent ev, |
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Point dragStartPos, DirectPosition startCoord, |
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DirectPosition endCoord) { |
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// TODO Auto-generated method stub |
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} |
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} |
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