Application: gvSIG desktop » Library: org.gvsig.tools

package org.gvsig.tools.swing.impl;

import java.awt.Color;

import java.awt.Dimension;

import java.awt.image.BufferedImage;

import java.awt.image.WritableRaster;

import javax.swing.ComboBoxModel;

import javax.swing.JButton;

import javax.swing.JComboBox;

import javax.swing.JList;

import javax.swing.JSlider;

import javax.swing.JTextField;

import javax.swing.tree.TreeModel;

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

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

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

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

import org.gvsig.tools.swing.impl.bufferedImage.VirtualBufferedImageHelper;

import org.gvsig.tools.swing.impl.bufferedImage.VirtualBufferedImageHelper.VirtualDataBuffer;

public class DefaultToolsSwingManager implements ToolsSwingManager {

    private Dimension maxPhysicalSizeOfBufferedImage;

    @Override

    public ActionListenerSupport createActionListenerSupport() {

        return new DefaultActionListenerSupport();

    }

    @Override

    public JListWithCheckbox createJListWithCheckbox(JList wrappedList) {

        return new DefaultJListWithCheckbox(wrappedList);

    }

    @Override

    public void setTreeModel(JComboBox comboBox, TreeModel aTreeModel) {

        TreeComboUtils.setTreeModel(comboBox, aTreeModel);

    }

    @Override

    public ComboBoxModel createComboBoxModel(TreeModel treeModel) {

        return TreeComboUtils.createComboBoxModel(treeModel);

    }

    @Override

    public BufferedImage createBufferedImage(int w, int h, int type) {

        if(getMaxPhysicalSizeOfBufferedImage().getWidth() < w || getMaxPhysicalSizeOfBufferedImage().getHeight() < h){

            return createVirtualBufferedImage(w,h,type);

        }

        return new BufferedImage(w,h,type);

    }

    @Override

    public BufferedImage createVirtualBufferedImage(int w, int h, int type) {

        return VirtualBufferedImageHelper.createVirtualBufferedImage(w, h, type);

    }

    @Override

    public BufferedImage copyBufferedImage(BufferedImage img) {

        WritableRaster sourceRaster = img.getRaster();

        BufferedImage newImage;

        if(sourceRaster.getDataBuffer() instanceof VirtualDataBuffer ){

            newImage = VirtualBufferedImageHelper.createVirtualBufferedImage(

                img.getWidth(), 

                img.getHeight(), 

                img.getSampleModel(), 

                img.getColorModel()

            );

        } else {

            newImage = createBufferedImage(img.getWidth(), img.getHeight(), img.getType());

        }

        WritableRaster raster = newImage.getRaster();

        img.copyData(raster);

        return newImage;

    }

    @Override

    public void setMaxPhysicalSizeOfBufferedImage(Dimension dimension) {

        this.maxPhysicalSizeOfBufferedImage = dimension;

    }

    @Override

    public Dimension getMaxPhysicalSizeOfBufferedImage() {

        if(this.maxPhysicalSizeOfBufferedImage == null){

            this.maxPhysicalSizeOfBufferedImage = new Dimension(2000, 2000);

        }

        return this.maxPhysicalSizeOfBufferedImage;

    }

    @Override

    public ColorChooserController createColorChooserController(JTextField txtLabel, JButton btnShowDialog, JSlider sldAlpha, boolean allowNull) {

        return new DefaultColorChooserController(txtLabel, btnShowDialog, sldAlpha, allowNull);

    }

    @Override

    public ColorChooserController createColorChooserController(JTextField txtLabel, JButton btnShowDialog) {

        return new DefaultColorChooserController(txtLabel, btnShowDialog);

    }

    @Override

    public ColorChooserController createColorChooserController(JTextField txtLabel, JButton btnShowDialog, JSlider sldAlpha) {

        return new DefaultColorChooserController(txtLabel, btnShowDialog, sldAlpha);

    }

    @Override

    public Color alphaBlendingWithOpaqueBackground(Color bgColor, Color fgColor) {

        // https://en.wikipedia.org/wiki/Alpha_compositing#Alpha_blending

        Color src = fgColor;

        Color dst = bgColor;

        // double outa = 1;

        double srca = src.getAlpha() / 255.0;

        double srca_1 = (1 - srca);

        Color color = new Color(

            (int)(src.getRed()  * srca + dst.getRed()  * srca_1) & 0xff,

            (int)(src.getGreen()* srca + dst.getGreen()* srca_1) & 0xff,

            (int)(src.getBlue() * srca + dst.getBlue() * srca_1) & 0xff

        );

        return color;        

    }

    @Override

    public Color opaqueColor(Color src) {

        // https://en.wikipedia.org/wiki/Alpha_compositing#Alpha_blending

        double srca = src.getAlpha() / 255.0;

        double srca_1 = (1 - srca);

        Color color = new Color(

            (int)(src.getRed()  * srca + 255  * srca_1) & 0xff,

            (int)(src.getGreen()* srca + 255 * srca_1) & 0xff,

            (int)(src.getBlue() * srca + 255 * srca_1) & 0xff

        );

        return color;

    }

}