Java 类java.awt.image.PackedColorModel 实例源码

public boolean is_INT_PACK(ColorModel cm) {
       // Check ColorModel is of type DirectColorModel
     if(!(cm instanceof PackedColorModel)) return false;

     PackedColorModel pcm = (PackedColorModel)cm;

     int [] masks = pcm.getMasks();

     // Check transfer type
     if(masks.length != 4) return false;

     if (masks[0] != 0x00ff0000) return false;
     if (masks[1] != 0x0000ff00) return false;
     if (masks[2] != 0x000000ff) return false;
     if (masks[3] != 0xff000000) return false;

     return true;
}

public boolean is_INT_PACK(ColorModel cm) {
       // Check ColorModel is of type DirectColorModel
     if(!(cm instanceof PackedColorModel)) return false;

     PackedColorModel pcm = (PackedColorModel)cm;

     int [] masks = pcm.getMasks();

     // Check transfer type
     if(masks.length != 4) return false;

     if (masks[0] != 0x00ff0000) return false;
     if (masks[1] != 0x0000ff00) return false;
     if (masks[2] != 0x000000ff) return false;
     if (masks[3] != 0xff000000) return false;

     return true;
}

public boolean is_INT_PACK(ColorModel cm) {
       // Check ColorModel is of type DirectColorModel
     if(!(cm instanceof PackedColorModel)) return false;

     PackedColorModel pcm = (PackedColorModel)cm;

     int [] masks = pcm.getMasks();

     // Check transfer type
     if(masks.length != 4) return false;

     if (masks[0] != 0x00ff0000) return false;
     if (masks[1] != 0x0000ff00) return false;
     if (masks[2] != 0x000000ff) return false;
     if (masks[3] != 0xff000000) return false;

     return true;
}

public Struct info()  throws ExpressionException{
    if(sctInfo!=null) return sctInfo;

    Struct sctInfo=new StructImpl(),sct;


    sctInfo.setEL("height",new Double(getHeight()));
    sctInfo.setEL("width",new Double(getWidth()));
    sctInfo.setEL("source",source==null?"":source.getAbsolutePath());
    //sct.setEL("mime_type",getMimeType());

    ColorModel cm = image().getColorModel();
    sct=new StructImpl();
    sctInfo.setEL("colormodel",sct);

    sct.setEL("alpha_channel_support",Caster.toBoolean(cm.hasAlpha()));
    sct.setEL("alpha_premultiplied",Caster.toBoolean(cm.isAlphaPremultiplied()));
    sct.setEL("transparency",toStringTransparency(cm.getTransparency()));
    sct.setEL("pixel_size",Caster.toDouble(cm.getPixelSize()));
    sct.setEL("num_components",Caster.toDouble(cm.getNumComponents()));
    sct.setEL("num_color_components",Caster.toDouble(cm.getNumColorComponents()));
    sct.setEL("colorspace",toStringColorSpace(cm.getColorSpace()));

    //bits_component
    int[] bitspercomponent = cm.getComponentSize();
    Array arr=new ArrayImpl();
    Double value;
    for (int i = 0; i < bitspercomponent.length; i++) {
        sct.setEL("bits_component_" + (i + 1),value=new Double(bitspercomponent[i]));
        arr.appendEL(value);
    }
    sct.setEL("bits_component",arr);

    // colormodel_type
    if (cm instanceof ComponentColorModel)      sct.setEL("colormodel_type", "ComponentColorModel");
    else if (cm instanceof IndexColorModel)     sct.setEL("colormodel_type", "IndexColorModel");
    else if (cm instanceof PackedColorModel)    sct.setEL("colormodel_type", "PackedColorModel");
    else sct.setEL("colormodel_type", ListUtil.last(cm.getClass().getName(), '.'));


    getMetaData(sctInfo);

    ImageMeta.addInfo(format,source,sctInfo);

    this.sctInfo=sctInfo;
    return sctInfo;
}

public Struct info()  throws PageException {
    if(sctInfo!=null) return sctInfo;

    Struct sctInfo=new StructImpl(),sct;
    ImageMetaDrew.addInfo(format,source,sctInfo);
    sctInfo=ImageGetEXIFMetadata.flatten(sctInfo);

    sctInfo.setEL(KeyConstants._height,new Double(getHeight()));
    sctInfo.setEL(KeyConstants._width,new Double(getWidth()));
    sctInfo.setEL(KeyConstants._source,source==null?"":source.getAbsolutePath());
    //sct.setEL("mime_type",getMimeType());

    ColorModel cm = image().getColorModel();
    sct=new StructImpl();
    sctInfo.setEL("colormodel",sct);

    sct.setEL("alpha_channel_support",Caster.toBoolean(cm.hasAlpha()));
    sct.setEL("alpha_premultiplied",Caster.toBoolean(cm.isAlphaPremultiplied()));
    sct.setEL("transparency",toStringTransparency(cm.getTransparency()));
    sct.setEL("pixel_size",Caster.toDouble(cm.getPixelSize()));
    sct.setEL("num_components",Caster.toDouble(cm.getNumComponents()));
    sct.setEL("num_color_components",Caster.toDouble(cm.getNumColorComponents()));
    sct.setEL("colorspace",toStringColorSpace(cm.getColorSpace()));

    //bits_component
    int[] bitspercomponent = cm.getComponentSize();
    Array arr=new ArrayImpl();
    Double value;
    for (int i = 0; i < bitspercomponent.length; i++) {
        sct.setEL("bits_component_" + (i + 1),value=new Double(bitspercomponent[i]));
        arr.appendEL(value);
    }
    sct.setEL("bits_component",arr);

    // colormodel_type
    if (cm instanceof ComponentColorModel)      sct.setEL("colormodel_type", "ComponentColorModel");
    else if (cm instanceof IndexColorModel)     sct.setEL("colormodel_type", "IndexColorModel");
    else if (cm instanceof PackedColorModel)    sct.setEL("colormodel_type", "PackedColorModel");
    else sct.setEL("colormodel_type", ListUtil.last(cm.getClass().getName(), '.'));


    getMetaData(sctInfo);
    //Metadata.addInfo(format,source,sctInfo);
    Metadata.addExifInfo(format,source,sctInfo);
    this.sctInfo=sctInfo;
    return sctInfo;
}

/**
 * Constructs a <code>PixelAccessor</code> given a valid
 * <code>SampleModel</code> and a (possibly <code>null</code>)
 * <code>ColorModel</code>.
 *
 * @param sm The <code>SampleModel</code> for the image to be accessed.
 *           Must be valid.
 * @param cm The <code>ColorModel</code> for the image to be accessed.
 *           May be null.
 * @throws IllegalArgumentException  If <code>sm</code> is <code>null</code>.
 */
public PixelAccessor(SampleModel sm, ColorModel cm) {

    if ( sm == null ) {
        throw new IllegalArgumentException(JaiI18N.getString("Generic0"));
    }

    sampleModel = sm;
    colorModel = cm;

    // Information from the SampleModel.
    isComponentSM = sampleModel instanceof ComponentSampleModel;
    isMultiPixelPackedSM = sampleModel instanceof
                           MultiPixelPackedSampleModel;
    isSinglePixelPackedSM = sampleModel instanceof
                            SinglePixelPackedSampleModel;

    bufferType = sampleModel.getDataType();
    transferType = sampleModel.getTransferType();
    numBands = sampleModel.getNumBands();
    sampleSize = sampleModel.getSampleSize();
    sampleType = isComponentSM ? bufferType : getType(sampleSize);

    // Indicates whether the pixel data may be stored in packed format.
    isPacked = sampleType == TYPE_BIT && numBands == 1;

    // Information from the ColorModel.
    hasCompatibleCM = colorModel != null &&
        JDKWorkarounds.areCompatibleDataModels(sampleModel, colorModel);

    if (hasCompatibleCM) {
        isComponentCM = colorModel instanceof ComponentColorModel;
        isIndexCM = colorModel instanceof IndexColorModel;
        isPackedCM = colorModel instanceof PackedColorModel;

        numComponents = colorModel.getNumComponents();
        componentSize = colorModel.getComponentSize();
        int tempType = getType(componentSize);

        componentType = (tempType == TYPE_BIT) ?
                         DataBuffer.TYPE_BYTE : tempType;
    } else {
        isComponentCM = false;
        isIndexCM = false;
        isPackedCM = false;
        numComponents = numBands;
        componentSize = sampleSize;
        componentType = sampleType;
    }
}