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/*
* Copyright 2002-2017 Drew Noakes
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* More information about this project is available at:
*
* https://drewnoakes.com/code/exif/
* https://github.com/drewnoakes/metadata-extractor
*/
package com.drew.metadata.mov.atoms;
import com.drew.lang.SequentialReader;
import com.drew.metadata.mov.media.QuickTimeTextDirectory;
import java.io.IOException;
/**
* https://developer.apple.com/library/content/documentation/QuickTime/QTFF/QTFFChap3/qtff3.html#//apple_ref/doc/uid/TP40000939-CH205-57428
*
* @author Payton Garland
*/
public class TextSampleDescriptionAtom extends SampleDescriptionAtom<TextSampleDescriptionAtom.TextSampleDescription>
{
public TextSampleDescriptionAtom(SequentialReader reader, Atom atom) throws IOException
{
super(reader, atom);
}
@Override
TextSampleDescription getSampleDescription(SequentialReader reader) throws IOException
{
return new TextSampleDescription(reader);
}
public void addMetadata(QuickTimeTextDirectory directory)
{
TextSampleDescription description = sampleDescriptions.get(0);
directory.setBoolean(QuickTimeTextDirectory.TAG_AUTO_SCALE, (description.displayFlags & 0x0002) == 0x0002);
directory.setBoolean(QuickTimeTextDirectory.TAG_MOVIE_BACKGROUND_COLOR, (description.displayFlags & 0x0008) == 0x0008);
directory.setBoolean(QuickTimeTextDirectory.TAG_SCROLL_IN, (description.displayFlags & 0x0020) == 0x0020);
directory.setBoolean(QuickTimeTextDirectory.TAG_SCROLL_OUT, (description.displayFlags & 0x0040) == 0x0040);
directory.setString(QuickTimeTextDirectory.TAG_HORIZONTAL_SCROLL, ((description.displayFlags & 0x0080) == 0x0080) ? "Horizontal" : "Vertical");
directory.setString(QuickTimeTextDirectory.TAG_REVERSE_SCROLL, ((description.displayFlags & 0x0100) == 0x0100) ? "Reverse" : "Normal");
directory.setBoolean(QuickTimeTextDirectory.TAG_CONTINUOUS_SCROLL, (description.displayFlags & 0x0200) == 0x0200);
directory.setBoolean(QuickTimeTextDirectory.TAG_DROP_SHADOW, (description.displayFlags & 0x1000) == 0x1000);
directory.setBoolean(QuickTimeTextDirectory.TAG_ANTI_ALIAS, (description.displayFlags & 0x2000) == 0x2000);
directory.setBoolean(QuickTimeTextDirectory.TAG_KEY_TEXT, (description.displayFlags & 0x4000) == 0x4000);
switch (description.textJustification) {
case (0):
directory.setString(QuickTimeTextDirectory.TAG_JUSTIFICATION, "Left");
break;
case (1):
directory.setString(QuickTimeTextDirectory.TAG_JUSTIFICATION, "Center");
break;
case (-1):
directory.setString(QuickTimeTextDirectory.TAG_JUSTIFICATION, "Right");
}
directory.setIntArray(QuickTimeTextDirectory.TAG_BACKGROUND_COLOR, description.backgroundColor);
directory.setLong(QuickTimeTextDirectory.TAG_DEFAULT_TEXT_BOX, description.defaultTextBox);
directory.setInt(QuickTimeTextDirectory.TAG_FONT_NUMBER, description.fontNumber);
switch (description.fontFace) {
case (0x0001):
directory.setString(QuickTimeTextDirectory.TAG_FONT_FACE, "Bold");
break;
case (0x0002):
directory.setString(QuickTimeTextDirectory.TAG_FONT_FACE, "Italic");
break;
case (0x0004):
directory.setString(QuickTimeTextDirectory.TAG_FONT_FACE, "Underline");
break;
case (0x0008):
directory.setString(QuickTimeTextDirectory.TAG_FONT_FACE, "Outline");
break;
case (0x0010):
directory.setString(QuickTimeTextDirectory.TAG_FONT_FACE, "Shadow");
break;
case (0x0020):
directory.setString(QuickTimeTextDirectory.TAG_FONT_FACE, "Condense");
break;
case (0x0040):
directory.setString(QuickTimeTextDirectory.TAG_FONT_FACE, "Extend");
}
directory.setIntArray(QuickTimeTextDirectory.TAG_FOREGROUND_COLOR, description.foregroundColor);
directory.setString(QuickTimeTextDirectory.TAG_NAME, description.textName);
}
class TextSampleDescription extends SampleDescription
{
int displayFlags;
int textJustification;
int[] backgroundColor;
long defaultTextBox;
int fontNumber;
int fontFace;
int[] foregroundColor;
String textName;
public TextSampleDescription(SequentialReader reader) throws IOException
{
super(reader);
displayFlags = reader.getInt32();
textJustification = reader.getInt32();
backgroundColor = new int[]{reader.getUInt16(), reader.getUInt16(), reader.getUInt16()};
defaultTextBox = reader.getInt64();
reader.skip(8); // 64-bits of reserved space set to 0
fontNumber = reader.getUInt16();
fontFace = reader.getUInt16();
reader.skip(1); // 8-bits of reserved space set to 0
reader.skip(2); // 16-bits of reserved space set to 0
foregroundColor = new int[]{reader.getUInt16(), reader.getUInt16(), reader.getUInt16()};
textName = reader.getString(reader.getUInt8());
}
}
}
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