Application: gvSIG desktop

package org.gvsig.export.swing.impl.panels;

import java.awt.event.ItemEvent;

import java.awt.event.ItemListener;

import javax.swing.JComponent;

import org.cresques.cts.ICoordTrans;

import org.cresques.cts.IProjection;

import org.gvsig.export.ExportParameters;

import org.gvsig.export.ExportParametersGeometry;

import org.gvsig.export.swing.JExportProcessPanel;

import org.gvsig.export.swing.impl.pickercontroller.ProjectionPickerController;

import org.gvsig.export.swing.spi.ExportPanel;

import org.gvsig.export.swing.spi.ExportPanelValidationException;

import org.gvsig.export.swing.spi.ExportPanelsManager;

import org.gvsig.tools.ToolsLocator;

import org.gvsig.tools.i18n.I18nManager;

import org.gvsig.tools.swing.api.ToolsSwingLocator;

import org.gvsig.tools.swing.api.ToolsSwingManager;

/**

 *

 * @author jjdelcerro

 */

public class SelectTargetProjectionPanel

        extends SelectTargetProjectionPanelView

        implements ExportPanel {

    private final ExportParametersGeometry parameters;

    private final JExportProcessPanel processPanel;

    private ProjectionPickerController projectionController;

    public SelectTargetProjectionPanel(

            JExportProcessPanel processPanel,

            ExportParameters parameters

    ) {

        this.processPanel = processPanel;

        this.parameters = (ExportParametersGeometry) parameters;

        this.initComponents();

    }

    private void initComponents() {

        this.projectionController = new ProjectionPickerController(

                this.txtUserProjection,

                this.btnSelectUserProjection

        );

        this.translate();

        IProjection targetParams = this.parameters.getTargetProjection();

        if (this.parameters.getContextProjection() == this.parameters.getSourceProjection()) {

            this.rdbtnOriginalProjection.setEnabled(this.parameters.getSourceProjection() != null);

            this.txtOriginalProjection.setEnabled(this.parameters.getSourceProjection() != null);

            this.rdbtnViewProjection.setEnabled(false);

            this.txtViewProjection.setEnabled(false);

            this.rdbtnUserProjection.setEnabled(true);

            this.txtUserProjection.setEnabled(true);

        } else {

            this.rdbtnOriginalProjection.setEnabled(this.parameters.getSourceProjection() != null);

            this.txtOriginalProjection.setEnabled(this.parameters.getSourceProjection() != null);

            this.rdbtnViewProjection.setEnabled(this.parameters.getContextProjection() != null);

            this.txtViewProjection.setEnabled(this.parameters.getContextProjection() != null);

            this.rdbtnUserProjection.setEnabled(true);

            this.txtUserProjection.setEnabled(true);

        }

        if (this.parameters.getContextProjection() != null) {

            this.txtViewProjection.setText(this.parameters.getContextProjection().getAbrev());

        }

        if (this.parameters.getSourceProjection() != null) {

            this.txtOriginalProjection.setText(this.parameters.getSourceProjection().getAbrev());

        }

        if (this.parameters.getTargetProjection() == null) {

            this.projectionController.set(this.parameters.getSourceProjection());

        } else {

            this.projectionController.set(this.parameters.getTargetProjection());

        }

        this.rdbtnOriginalProjection.addItemListener(new ItemListener() {

            @Override

            public void itemStateChanged(ItemEvent e) {

                doRadioButonsStateChanged();

            }

        });

        this.rdbtnUserProjection.addItemListener(new ItemListener() {

            @Override

            public void itemStateChanged(ItemEvent e) {

                doRadioButonsStateChanged();

            }

        });

        this.rdbtnViewProjection.addItemListener(new ItemListener() {

            @Override

            public void itemStateChanged(ItemEvent e) {

                doRadioButonsStateChanged();

            }

        });

        updateSelectedRadioButton();

    }

    private void doRadioButonsStateChanged() {

        if (this.rdbtnUserProjection.isSelected()) {

            this.projectionController.setEnabled(true);

            this.txtOriginalProjection.setEnabled(false);

            this.txtViewProjection.setEnabled(false);

            this.txtUserProjection.setEnabled(true);

        } else if (this.rdbtnOriginalProjection.isSelected()) {

            this.projectionController.setEnabled(false);

            this.txtOriginalProjection.setEnabled(true);

            this.txtViewProjection.setEnabled(false);

            this.txtUserProjection.setEnabled(false);

        } else if (this.rdbtnViewProjection.isSelected()) {

            this.projectionController.setEnabled(false);

            this.txtOriginalProjection.setEnabled(false);

            this.txtViewProjection.setEnabled(true);

            this.txtUserProjection.setEnabled(false);

        }

    }

    @Override

    public String getIdPanel() {

        return ExportPanelsManager.PANEL_SELECT_TARGET_PROJECTION;

    }

    @Override

    public String getTitlePanel() {

        I18nManager i18n = ToolsLocator.getI18nManager();

        return i18n.getTranslation("_Target_projection");

    }

    @Override

    public boolean validatePanel() throws ExportPanelValidationException {

        if (parameters instanceof ExportParametersGeometry) {

            if (this.getTargetProjection()==null) {

                return false;

            }

        }

        return true;

    }

    @Override

    public void previousPanel() {

    }

    @Override

    public void enterPanel() {

        IProjection targetProjection = this.parameters.getTargetProjection();

        IProjection contextProjection = this.parameters.getContextProjection();

        IProjection sourceProjection = this.parameters.getSourceProjection();

        ICoordTrans trans = this.parameters.getTargetTransformation();

        if (targetProjection != null) {

            this.projectionController.set(targetProjection);

        } else if (contextProjection != null) {

            this.projectionController.set(contextProjection);

        } else if (sourceProjection != null) {

            this.projectionController.set(sourceProjection);

        }

        updateSelectedRadioButton();

    }

    private void updateSelectedRadioButton() {

                if (this.parameters.getSourceProjection() == null) {

            this.rdbtnUserProjection.setSelected(true);

        } else if (this.parameters.getTargetProjection() == this.parameters.getSourceProjection()) {

            this.rdbtnOriginalProjection.setSelected(true);

        } else if (this.parameters.getTargetProjection() == this.parameters.getContextProjection()) {

            this.rdbtnViewProjection.setSelected(true);

        } else {

            this.rdbtnUserProjection.setSelected(true);

        }

    }

    private IProjection getTargetProjection() {

         if (this.rdbtnUserProjection.isSelected()) {

            return this.projectionController.get();

        } else if (this.rdbtnOriginalProjection.isSelected()) {

            return this.parameters.getSourceProjection();

        } else if (this.rdbtnViewProjection.isSelected()) {

            return this.parameters.getContextProjection();

        }

        return null; // no deberia llegar aqui

    }

    private ICoordTrans getTargetTransformation() {

        if (this.rdbtnUserProjection.isSelected()) {

            return this.projectionController.getCoordinateTransformation();

        } else if (this.rdbtnOriginalProjection.isSelected()) {

           return null;

        } else if (this.rdbtnViewProjection.isSelected()) {

            ICoordTrans targetCT = this.parameters.getSourceProjection().getCT(this.parameters.getContextProjection());

            return targetCT;

        }

        return null; // no deberia llegar aqui

    }

    @Override

    public void nextPanel() {

        this.parameters.setTargetProjection(getTargetProjection());

        this.parameters.setTargetTransformation(getTargetTransformation());

    }

    @Override

    public JComponent asJComponent() {

        return this;

    }

    private void translate() {

        ToolsSwingManager manager = ToolsSwingLocator.getToolsSwingManager();

        manager.translate(this.lblSelectTargetProjection);

        manager.translate(this.rdbtnOriginalProjection);

        manager.translate(this.rdbtnUserProjection);

        manager.translate(this.rdbtnViewProjection);

    }

}