Apple-2-Tools
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AppleCommander
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Added support for QuickDraw II icon.

This commit is contained in:
Robert Greene 2003-12-22 01:20:37 +00:00
parent d662a42c0d
commit bc4773e4b6
2 changed files with 124 additions and 2 deletions
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1
TODO
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@ -13,6 +13,7 @@ This is the internal list of items that need to be done.
- Import (new)
- Export
- Compile
* Added support for Finder Icons File ($CA or "ICN").
--- FUTURE 1.3.x ---
o Compile of BASIC programs

125
src/com/webcodepro/applecommander/storage/GraphicsFileFilter.java
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@ -24,6 +24,8 @@ import com.webcodepro.applecommander.util.AppleUtil;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
/**
* Filter the given file as if it were a graphics image.
@ -57,6 +59,7 @@ public class GraphicsFileFilter implements FileFilter {
public static final int MODE_DHR_COLOR = 4;
public static final int MODE_SHR_16 = 5;
public static final int MODE_SHR_3200 = 6;
public static final int MODE_QUICKDRAW2_ICON = 7;
private int mode = MODE_HGR_COLOR;
private AppleImage appleImage;
@ -89,11 +92,30 @@ public class GraphicsFileFilter implements FileFilter {
image = AppleImage.create(560, 192*2);
} else if (isSuperHiresMode()) {
image = AppleImage.create(640, 400);
} else if (isQuickDraw2Icon()) {
// Build later...
} else {
return new byte[0];
}
image.setFileExtension(appleImage.getFileExtension());
if (isSuperHiresMode()) {
if (isQuickDraw2Icon()) {
AppleImage[] icons = buildQuickDraw2Icons(fileEntry);
int width = 0;
for (int i=0; i<icons.length; i+=2) {
width+= icons[i].getWidth();
}
int height = icons[0].getHeight() + icons[1].getHeight();
image = AppleImage.create(width, height);
int x = 0;
for (int i=0; i<icons.length; i++) {
if (i % 2 == 0) { // the actual icon
copyImage(image, icons[i], x, 0);
} else { // the mask - note that height and width is
// assumed to be same between icon and its mask
copyImage(image, icons[i], x, icons[i].getHeight());
x+= icons[i].getWidth();
}
}
} else if (isSuperHiresMode()) {
if (fileData.length < 32767) { // leaves 1 byte of leeway
fileData = AppleUtil.unpackBytes(fileData);
if (fileData.length == 32767) {
@ -142,6 +164,7 @@ public class GraphicsFileFilter implements FileFilter {
}
}
try {
image.setFileExtension(appleImage.getFileExtension());
ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
image.save(outputStream);
return outputStream.toByteArray();
@ -380,6 +403,97 @@ public class GraphicsFileFilter implements FileFilter {
}
}
}
/**
* Construct a series of icons based on the QuickDraw II Icon file format.
* In ProDOS, this is the ICN ($Ca) file format.
* <p>
* @see http://www.gno.org/pub/apple2/doc/apple/filetypes/ftn.ca.xxxx
*/
public AppleImage[] buildQuickDraw2Icons(FileEntry fileEntry) {
List icons = new ArrayList();
int offset = 26; // skip file header
byte[] filedata = fileEntry.getFileData();
while (offset < filedata.length) {
int iDataLen = AppleUtil.getWordValue(filedata, offset);
if (iDataLen == 0) break; // end of file
AppleImage[] imageAndMask = buildQuickDraw2IconAndMask(filedata, offset+86);
icons.add(imageAndMask[0]);
icons.add(imageAndMask[1]);
offset+= iDataLen;
}
AppleImage[] images = new AppleImage[icons.size()];
icons.toArray(images);
return images;
}
/**
* Each icon is composed of two images - one an icon and the other is the mask.
*/
protected AppleImage[] buildQuickDraw2IconAndMask(byte[] filedata, int offset) {
boolean colorIcon = AppleUtil.getWordValue(filedata, offset) == 0x8000;
//int iconSize = AppleUtil.getWordValue(filedata, offset+2);
int iconHeight = AppleUtil.getWordValue(filedata, offset+4);
int iconWidth = AppleUtil.getWordValue(filedata, offset+6);
AppleImage[] iconAndMask = new AppleImage[2];
offset+= 8;
iconAndMask[0] = buildQuickDraw2IconOrMask(filedata, colorIcon, iconHeight, iconWidth, offset);
int bytesWide = 1 + ((iconWidth - 1) / 2);
offset+= bytesWide * iconHeight;
iconAndMask[1] = buildQuickDraw2IconOrMask(filedata, false, iconHeight, iconWidth, offset);
return iconAndMask;
}
/**
* Build an image of an individual icon or its mask.
*/
protected AppleImage buildQuickDraw2IconOrMask(byte[] filedata, boolean isColor, int height, int width, int offset) {
AppleImage icon = AppleImage.create(width, height);
int[] colors = { // this is a wild guess, by the way!
0x000000, 0xff0000, 0x800000, 0xff8000, // black, magenta, brown, orange
0x008000, 0x808080, 0x00ff00, 0xffff00, // dark green, grey1, green, yellow
0x000080, 0xff00ff, 0x808080, 0xff80c0, // dark blue, voilet, grey2, pink
0x0000a0, 0x0000ff, 0x00c080, 0xffffff // medium blue, light blue, aqua, white
};
int[] grays = { // a logical guess...
0x000000, 0x111111, 0x222222, 0x333333,
0x444444, 0x555555, 0x666666, 0x777777,
0x888888, 0x999999, 0xaaaaaa, 0xbbbbbb,
0xcccccc, 0xdddddd, 0xeeeeee, 0xffffff
};
for (int y=0; y<height; y++) {
for (int x=0; x<width; x++) {
if (x > 0 && x%2 == 0) {
offset++;
}
int byteValue = AppleUtil.getUnsignedByte(filedata[offset]);
int pixel = 0;
if (x%2 == 0) {
pixel = byteValue & 0x0f;
} else {
pixel = byteValue & 0xf0 >> 4;
}
int color = isColor ? colors[pixel] : grays[pixel];
icon.setPoint(x, y, color);
}
offset++;
}
return icon;
}
/**
* Copy an image from the source image to the destination image.
* This isn't optimal, nor can it be - we're hiding the actual image
* implementation, after all. Initially written to handle Apple IIGS
* Toolbox Icon files.
*/
public void copyImage(AppleImage destImage, AppleImage srcImage, int xStart, int yStart) {
for (int y=0; y<srcImage.getHeight(); y++) {
for (int x=0; x<srcImage.getWidth(); x++) {
destImage.setPoint(xStart+x, yStart+y, srcImage.getPoint(x,y));
}
}
}
/**
* Give file extensions.
@ -482,4 +596,11 @@ public class GraphicsFileFilter implements FileFilter {
public boolean isSuperHiresMode() {
return isSuperHires16Mode() || isSuperHires3200Mode();
}
/**
* Indicates if this is a QuickDraw II Icon.
*/
public boolean isQuickDraw2Icon() {
return mode == MODE_QUICKDRAW2_ICON;
}
}