Revision 3023 trunk/extensions/extGeoreferencing/src/com/iver/cit/gvsig/gui/Panels/ZoomControlPanel.java
| ZoomControlPanel.java | ||
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import java.awt.Graphics2D; |
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import java.awt.GridBagConstraints; |
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import java.awt.GridBagLayout; |
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import java.awt.event.ActionEvent; |
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import java.awt.event.ActionListener; |
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import java.awt.geom.Point2D; |
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import java.awt.geom.Rectangle2D; |
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import java.awt.image.BufferStrategy; |
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import javax.swing.ImageIcon; |
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import javax.swing.JButton; |
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* @author Nacho Brodin (brodin_ign@gva.es) |
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* |
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*/ |
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public class ZoomControlPanel extends JPanel{
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public class ZoomControlPanel extends JPanel implements ActionListener{
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private JPanel pImage = null; |
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bZoomMas = new JButton(); |
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bZoomMas.setPreferredSize(new java.awt.Dimension(25,25)); |
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bZoomMas.setIcon(new ImageIcon(getClass().getResource("/com/iver/cit/gvsig/gui/Panels/images/aumentar.png")));
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bZoomMas.addActionListener(this); |
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} |
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return bZoomMas; |
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} |
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bZoomMenos = new JButton(); |
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bZoomMenos.setPreferredSize(new java.awt.Dimension(25,25)); |
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bZoomMenos.setIcon(new ImageIcon(getClass().getResource("/com/iver/cit/gvsig/gui/Panels/images/disminuir.png")));
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bZoomMenos.addActionListener(this); |
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} |
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return bZoomMenos; |
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} |
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*/ |
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public void setVisible(boolean visible){
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canvas.setVisible(visible); |
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if(!visible) |
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canvas.setSize(0,0); |
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else |
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canvas.setSize(sX, sY); |
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canvas.repaint(); |
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} |
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|
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} |
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/** |
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* Manejo de los controles zoom m?s y zoom menos |
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*/ |
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public void actionPerformed(ActionEvent e) {
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if(e.getSource() == bZoomMas){
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canvas.calcZoom(0.6); |
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canvas.repaint(); |
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} |
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if(e.getSource() == bZoomMenos){
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canvas.calcZoom(1.8); |
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canvas.repaint(); |
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} |
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} |
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/** |
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* Control que representa la zona de dibujado de la ventana. Este se encarga de |
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* repintar el contenido sobre el Graphics2D a partir del viewPort que se le pase |
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* @author Nacho Brodin (brodin_ign@gva.es) |
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private ViewPort viewPort = null; |
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private ViewPort newViewPort = null; |
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private Point2D centerPoint = null; |
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private final int ZOOM = 12; |
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private int zoom = 20; |
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public BufferStrategy strategy; |
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public CanvasZone( int anc,int alt) {
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ancho = anc; |
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this.setSize(ancho, alto); |
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this.setBackground(Color.WHITE); |
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//this.createBufferStrategy(2); |
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//strategy = this.getBufferStrategy(); |
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} |
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/** |
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*/ |
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public void setViewPort(ViewPort vp){
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this.viewPort = vp; |
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this.initViewPort(); |
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} |
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/** |
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* Calcula el zoom dependiendo del factor de escala pasado por |
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* par?metro. |
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*/ |
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public void calcZoom(double factor){
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Rectangle2D.Double r = new Rectangle2D.Double(); |
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double nuevoX = centerPoint.getX() - |
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((newViewPort.getExtent().getWidth() * factor) / 2.0); |
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double nuevoY = centerPoint.getY() - |
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((newViewPort.getExtent().getHeight() * factor) / 2.0); |
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r.x = nuevoX; |
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r.y = nuevoY; |
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r.width = newViewPort.getExtent().getWidth() * factor; |
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r.height = newViewPort.getExtent().getHeight() * factor; |
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newViewPort.setExtent(r); |
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} |
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/** |
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*Calculamos el viewPort para el zoom de la minimagen |
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*/ |
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public void calcViewPort(){
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public void initViewPort(){
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if(centerPoint != null){
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newViewPort = this.viewPort.cloneViewPort(); |
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//Hallamos la relaci?n entre el pixel y las WC a partir de la imagen de la capa |
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double relacionPixelWcWidth = ((viewPort.getExtent().getMaxX() - viewPort.getExtent().getMinX()) / ZOOM)/this.getWidth();
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double relacionPixelWcHeight = ((viewPort.getExtent().getMaxY() - viewPort.getExtent().getMinY()) / ZOOM)/this.getHeight();
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double relacionPixelWcWidth = ((viewPort.getExtent().getMaxX() - viewPort.getExtent().getMinX()) / zoom)/this.getWidth();
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double relacionPixelWcHeight = ((viewPort.getExtent().getMaxY() - viewPort.getExtent().getMinY()) / zoom)/this.getHeight();
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double wcOriginX = centerPoint.getX() - ((viewPort.getImageWidth()*relacionPixelWcWidth)/2); |
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double wcOriginY = centerPoint.getY() - ((viewPort.getImageHeight()*relacionPixelWcHeight)/2); |
| ... | ... | |
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*/ |
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public void paint( Graphics g ) {
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//Creamos el fondo |
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//Graphics g = strategy.getDrawGraphics(); |
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Graphics2D g2D = (Graphics2D) g; |
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g.setColor( Color.WHITE ); |
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g.fillRect( 0,0,ancho,alto ); |
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try{
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if(viewPort != null){
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calcViewPort(); |
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//Si no tenemos las capas las cargamos |
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try{
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if(newViewPort != null){
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//Si no tenemos las capas las cargamos |
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if(flayers == null){
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View theView = (View) PluginServices.getMDIManager().getActiveView(); |
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flayers = theView.getMapControl().getMapContext().getLayers(); |
| ... | ... | |
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}catch (DriverException e) {
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e.printStackTrace(); |
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} |
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//strategy.show(); |
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} |
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/** |
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* @param pto Punto central. |
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*/ |
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public void setCenterPoint(Point2D pto){
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System.out.println("--->"+pto);
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this.centerPoint = pto; |
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} |
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} |
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} |
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} |
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