Application: gvSIG desktop

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package org.gvsig.symbology.fmap.mapcontext.rendering.symbol.impl;

import org.gvsig.compat.print.PrintAttributes;

import org.gvsig.fmap.geom.Geometry;

import org.gvsig.fmap.mapcontext.MapContextLocator;

import org.gvsig.fmap.mapcontext.ViewPort;

import org.gvsig.fmap.mapcontext.rendering.symbols.CartographicSupport;

import org.gvsig.fmap.mapcontext.rendering.symbols.SymbolPreferences;

/**

 *

 * @author fdiaz

 */

public abstract class AbstractCartographicSupport implements CartographicSupport {

    private int unit;

    private int referenceSystem;

    private CartographicSupport.CartographicContext cartographicContext;

    public AbstractCartographicSupport() {

        super();

        SymbolPreferences preferences = MapContextLocator.getSymbolManager().getSymbolPreferences();

        unit = preferences.getDefaultCartographicSupportMeasureUnit();

        referenceSystem = preferences.getDefaultCartographicSupportReferenceSystem();

    }

    @Override

    public void setCartographicContext(ViewPort viewPort, double dpi, Geometry geom) {

        if(viewPort == null){

            this.setCartographicContext((CartographicContext)null);

        } else {

            this.setCartographicContext(CartographicSupportToolkit.createCartographicContext(viewPort, dpi, geom));

        }

    }

    @Override

    public void setCartographicContext(ViewPort viewPort, PrintAttributes properties, Geometry geometry) {

        int dpi = (int)CartographicSupportToolkit.getScreenDpi();

        if(viewPort != null){

            dpi = (int) viewPort.getDPI();

        }

        if(properties != null){

            int pq = properties.getPrintQuality();

            switch (pq) {

                case PrintAttributes.PRINT_QUALITY_NORMAL:

                    dpi = 300;

                    break;

                case PrintAttributes.PRINT_QUALITY_HIGH:

                    dpi = 600;

                    break;

                case PrintAttributes.PRINT_QUALITY_DRAFT:

                    dpi = 72;

                    break;

                default:

                    break;

            }

        }

        this.setCartographicContext(CartographicSupportToolkit.createCartographicContext(viewPort, dpi, geometry));

    }

    @Override

    public void setCartographicContext(double dpi) {

        this.setCartographicContext(CartographicSupportToolkit.createCartographicContext(null, dpi, null));

    }

    @Override

    public void setCartographicContext(PrintAttributes properties) {

        int dpi = (int)CartographicSupportToolkit.getScreenDpi();

        if(properties != null){

            int pq = properties.getPrintQuality();

            switch (pq) {

                case PrintAttributes.PRINT_QUALITY_NORMAL:

                    dpi = 300;

                    break;

                case PrintAttributes.PRINT_QUALITY_HIGH:

                    dpi = 600;

                    break;

                case PrintAttributes.PRINT_QUALITY_DRAFT:

                    dpi = 72;

                    break;

                default:

                    break;

            }

        }

        this.setCartographicContext(CartographicSupportToolkit.createCartographicContext(null, dpi, null));

    }

    @Override

    public CartographicSupport.CartographicContext getCartographicContext() {

        return this.cartographicContext;

    }

    @Override

    public double toCartographicUnits(double value){

        if(isInPixels()){

            return value;

        }

        return CartographicSupportToolkit.getCartographicLength(

                this,

                value,

                this.getCartographicContext());

    }

    @Override

    public void setCartographicContext(CartographicSupport.CartographicContext ctx) {

        this.cartographicContext = ctx;

    }

    @Override

    public void copyCartographicContext(CartographicSupport element) {

        this.cartographicContext = element.getCartographicContext();

    }

    @Override

    public void setUnit(int unitIndex) {

        this.unit = unitIndex;

    }

    @Override

    public int getUnit() {

        return this.unit;

    }

    @Override

    public int getReferenceSystem() {

        return this.referenceSystem;

    }

    @Override

    public void setReferenceSystem(int system) {

        this.referenceSystem = system;

    }

    public boolean isInPixels() {

        return (this.getCartographicContext() == null || this.getUnit() == -1 );

    }

}