/** paint the canvas into a image file of given width and height */
public void writeToImage(String s, int w, int h) {
String ext;
File f;
try {
ext = s.substring(s.lastIndexOf(".") + 1);
f = new File(s);
} catch (Exception e) {
System.out.println(e);
return;
}
if (!ext.equals("jpg") && !ext.equals("png")) {
System.out.println("Cannot write to file: Illegal extension " + ext);
return;
}
boolean opq = true;
if (theOpaque != null) opq = theOpaque;
BufferedImage image = new BufferedImage(w, h, BufferedImage.TYPE_INT_RGB);
Graphics2D g2 = image.createGraphics();
g2.setBackground(Color.white);
g2.setPaint(Color.black);
g2.setStroke(new BasicStroke(1));
g2.setRenderingHint(
RenderingHints.KEY_INTERPOLATION, RenderingHints.VALUE_INTERPOLATION_BICUBIC);
doBuffer(g2, true, new Rectangle(0, 0, w, h));
try {
ImageIO.write(image, ext, f);
} catch (Exception e) {
System.out.println(e);
}
}
public void drawScaledImage(BufferedImage im, int x, int y, int w, int h) {
float scaleX = w * 1.0f / im.getWidth();
float scaleY = h * 1.0f / im.getHeight();
AffineTransform tx = new AffineTransform();
tx.scale(scaleX, scaleY);
BufferedImageOp op = new AffineTransformOp(tx, AffineTransformOp.TYPE_BILINEAR);
drawImage(im, op, x, y);
}
/**
* Turn a (possibly) translucent or indexed image into a display-compatible bitmask image using
* the given alpha threshold and render-to-background colour, or display-compatible translucent
* image. The alpha values in the image are set to either 0 (below threshold) or 255 (above
* threshold). The render-to-background colour bg_col is used to determine how the pixels
* overlapping transparent pixels should be rendered. The fast algorithm just sets the colour
* behind the transparent pixels in the image (for bitmask source images); the slow algorithm
* actually renders the image to a background of bg_col (for translucent sources).
*
* @param thresh alpha threshold between 0 and 255
* @param fast use fast algorithm (only set bg_col behind transp. pixels)
* @param bitmask true=use bitmask, false=use translucent
*/
public JGImage toDisplayCompatible(int thresh, JGColor bg_col, boolean fast, boolean bitmask) {
Color bgcol = new Color(bg_col.r, bg_col.g, bg_col.b);
int bgcol_rgb = (bgcol.getRed() << 16) | (bgcol.getGreen() << 8) | bgcol.getBlue();
JGPoint size = getSize();
int[] buffer = getPixels();
// render image to bg depending on bgcol
BufferedImage img_bg;
if (bitmask) {
img_bg = createCompatibleImage(size.x, size.y, Transparency.BITMASK);
} else {
img_bg = createCompatibleImage(size.x, size.y, Transparency.TRANSLUCENT);
}
int[] bg_buf;
if (!fast) {
Graphics g = img_bg.getGraphics();
g.setColor(bgcol);
// the docs say I could use bgcol in the drawImage as an
// equivalent to the following two lines, but this
// doesn't handle translucency properly and is _slower_
g.fillRect(0, 0, size.x, size.y);
g.drawImage(img, 0, 0, null);
bg_buf = new JREImage(img_bg).getPixels();
} else {
bg_buf = buffer;
}
// g.dispose();
// ColorModel rgb_bitmask = ColorModel.getRGBdefault();
// rgb_bitmask = new PackedColorModel(
// rgb_bitmask.getColorSpace(),25,0xff0000,0x00ff00,0x0000ff,
// 0x1000000, false, Transparency.BITMASK, DataBuffer.TYPE_INT);
// ColorSpace space, int bits, int rmask, int gmask, int bmask, int amask, boolean
// isAlphaPremultiplied, int trans, int transferType)
int[] thrsbuf = new int[size.x * size.y];
for (int y = 0; y < size.y; y++) {
for (int x = 0; x < size.x; x++) {
if (((buffer[y * size.x + x] >> 24) & 0xff) >= thresh) {
thrsbuf[y * size.x + x] = bg_buf[y * size.x + x] | (0xff << 24);
} else {
// explicitly set the colour of the transparent pixel.
// This makes a difference when scaling!
// thrsbuf[y*size.x+x]=bg_buf[y*size.x+x]&~(0xff<<24);
thrsbuf[y * size.x + x] = bgcol_rgb;
}
}
}
return new JREImage(
output_comp.createImage(
new MemoryImageSource(
size.x,
size.y,
// rgb_bitmask,
img_bg.getColorModel(), // display compatible bitmask
bitmask ? thrsbuf : bg_buf,
0,
size.x)));
}
public static BufferedImage cropImage(BufferedImage bi, int x, int y, int w, int h) {
BufferedImage image = new BufferedImage(w, h, BufferedImage.TYPE_INT_RGB);
Graphics2D g2 = image.createGraphics();
g2.setRenderingHint(
RenderingHints.KEY_INTERPOLATION, RenderingHints.VALUE_INTERPOLATION_BICUBIC);
g2.setPaint(Color.white);
g2.fillRect(0, 0, w, h);
g2.drawImage(bi, -x, -y, null); // this);
g2.dispose();
return image;
}
public static BufferedImage tileImage(BufferedImage im, int width, int height) {
GraphicsConfiguration gc =
GraphicsEnvironment.getLocalGraphicsEnvironment()
.getDefaultScreenDevice()
.getDefaultConfiguration();
int transparency = Transparency.OPAQUE; // Transparency.BITMASK;
BufferedImage compatible = gc.createCompatibleImage(width, height, transparency);
Graphics2D g = (Graphics2D) compatible.getGraphics();
g.setPaint(new TexturePaint(im, new Rectangle(0, 0, im.getWidth(), im.getHeight())));
g.fillRect(0, 0, width, height);
return compatible;
}
public static BufferedImage scaleImage(BufferedImage bi, double scale) {
int w1 = (int) (Math.round(scale * bi.getWidth()));
int h1 = (int) (Math.round(scale * bi.getHeight()));
BufferedImage image = new BufferedImage(w1, h1, BufferedImage.TYPE_INT_RGB);
Graphics2D g2 = image.createGraphics();
g2.setRenderingHint(
RenderingHints.KEY_INTERPOLATION, RenderingHints.VALUE_INTERPOLATION_BICUBIC);
g2.setPaint(Color.white);
g2.fillRect(0, 0, w1, h1);
g2.drawImage(bi, 0, 0, w1, h1, null); // this);
g2.dispose();
return image;
}
public static BufferedImage rotateImage(BufferedImage bi) {
int w = bi.getWidth();
int h = bi.getHeight();
BufferedImage image = new BufferedImage(h, w, BufferedImage.TYPE_INT_RGB);
Graphics2D g2 = image.createGraphics();
g2.setRenderingHint(
RenderingHints.KEY_INTERPOLATION, RenderingHints.VALUE_INTERPOLATION_BICUBIC);
g2.setPaint(Color.white); // getBackground());
g2.fillRect(0, 0, h, w);
g2.rotate(90 * Math.PI / 180);
g2.drawImage(bi, 0, -h, w, h, null); // this);
g2.dispose();
return image;
}
/**
* Synchronize the textLayout and the shape (=frame box, by calling syncFrame) with the model When
* <code>TextLayout</code> is used, this delegates to <code>getRotation()</code> where computing
* rotation angle is concerned, and updates the AffineTransform returned by <code>
* getTextToModelTransform()</code>.
*/
protected void syncShape() {
PicText te = (PicText) element;
// textLayout = new TextLayout(te.getText().length()==0 ? " " : te.getText(),
// textFont,
// new FontRenderContext(null,false,false));
text2ModelTr.setToIdentity(); // reset
PicPoint anchor = te.getCtrlPt(TextEditable.P_ANCHOR, ptBuf);
text2ModelTr.rotate(getRotation(), anchor.x, anchor.y); // rotate along P_ANCHOR !
// the reference point of an image is the top-left one, but the refpoint of a text layout is on
// the baseline
if (image != null) {
text2ModelTr.translate(te.getLeftX(), te.getTopY());
if (te.getWidth() != 0
&& image.getWidth() != 0
&& (te.getDepth() + te.getHeight()) != 0
&& image.getHeight() != 0)
text2ModelTr.scale(
te.getWidth() / image.getWidth(),
-(te.getHeight() + te.getDepth()) / image.getHeight());
} else {
// Hack ? Just cheating a little bit ? Ou juste ruse ?
// we want here to use the dimensions of the textLayout instead of latex dimensions if
// areDimensionsComputed
// sinon on va aligner le textlayout en fonction des parametres latex, et l'Utilisateur (qui
// est bien bete) ne va rien comprendre.
double latexH = 0;
double latexD = 0;
double latexW = 0;
if (areDimensionsComputed) { // store latex dimensions, and setDimensions to textLayout ones
latexH = te.getHeight();
latexD = te.getDepth();
latexW = te.getWidth();
te.setDimensions(
textLayout.getBounds().getWidth(), textLayout.getAscent(), textLayout.getDescent());
}
text2ModelTr.translate(te.getLeftX(), te.getBaseLineY());
if (areDimensionsComputed) { // restore latex dimensions
te.setDimensions(latexW, latexH, latexD);
}
// Autre possibilite= comprimer le texte pour qu'il rentre dans la boite (evite le hack
// ci-dessus):
// text2ModelTr.scale(te.getWidth()/textLayout.getWidth(),-(te.getHeight()+te.getDepth())/textLayout.getHeight());
text2ModelTr.scale(1.0, -1.0);
}
syncFrame();
}
public JGImage rotateAny(double angle) {
JGPoint size = getSize();
int sw = size.x;
int sh = size.y;
// destination size is upper bound size. Upper bound is the max
// of the longest dimension and the figure's dimension at 45 degrees
// = sw*sin(45)+sh*cos(45) ~= 1.5*(sw+sh)
int dw = (int) Math.max(Math.max(sw, sh), 0.75 * (sw + sh));
int dh = dw;
int xtrans = (dw - sw) / 2;
int ytrans = (dh - sh) / 2;
BufferedImage dst = createCompatibleImage(dw, dh, Transparency.BITMASK);
Graphics2D g = (Graphics2D) dst.getGraphics();
AffineTransform tt = AffineTransform.getTranslateInstance(xtrans, ytrans);
AffineTransform tr = AffineTransform.getRotateInstance(angle, sw / 2, sh / 2);
tt.concatenate(tr);
g.drawImage(img, tt, null);
return new JREImage(dst);
}
// Although it presently returns a boolean, that was only needed
// during my aborted attempted at animated graphics primitives.
// Until those become a reality the boolean value returned by this
// routine is unnecessary
public boolean animate(int sAt, boolean forward) {
int x;
LinkedList lt = null;
animation_done =
true; // May be re-set in paintComponent via indirect paintImmediately call at end
// Was used in aborted attempted to
// introduce animated primitives. Now
// it's probably excess baggage that
// remains because I still have hopes
// of eventually having animated
// primitives
if (getSize().width != 0 && getSize().height != 0) {
my_width = getSize().width; // set dimensions
my_height = getSize().height;
} else {
my_width = GaigsAV.preferred_width; // set dimensions
my_height = GaigsAV.preferred_height;
}
// First capture the new image in a buffer called image2
SnapAt = sAt;
BufferedImage image2 = new BufferedImage(my_width, my_height, BufferedImage.TYPE_INT_RGB);
Graphics2D g2 = (Graphics2D) image2.getGraphics(); // need a separate object each time?
g2.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
g2.setColor(Color.WHITE);
g2.fillRect(0, 0, my_width, my_height);
// Set horizoff and vertoff to properly center the visualization in the
// viewing window. This is not quite perfect because visualizations
// that are not properly centered within their [0,1] localized
// coordinates will not be perfectly centered, but it is much better
// than it was previously.
if (no_mouse_drag) {
horizoff = (my_width - GaigsAV.preferred_width) / 2;
vertoff = (my_height - GaigsAV.preferred_height) / 2;
}
list_of_snapshots.reset();
x = 0;
lt = new LinkedList();
while (x < SnapAt && list_of_snapshots.hasMoreElements()) {
lt = (LinkedList) list_of_snapshots.nextElement();
x++;
}
lt.reset();
animation_done = true;
// System.out.println("before loop " + horizoff);
while (lt.hasMoreElements()) {
obj tempObj = (obj) lt.nextElement();
animation_done =
animation_done && (tempObj.execute(g2 /*offscreen*/, zoom, vertoff, horizoff));
// System.out.println("in loop");
}
// Next capture the image we are coming from in a buffer called image1
SnapAt = (forward ? sAt - 1 : sAt + 1);
BufferedImage image1 = new BufferedImage(my_width, my_height, BufferedImage.TYPE_INT_RGB);
Graphics2D g1 = (Graphics2D) image1.getGraphics(); // need a separate object each time?
g1.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
g1.setColor(Color.WHITE);
g1.fillRect(0, 0, my_width, my_height);
// Set horizoff and vertoff to properly center the visualization in the
// viewing window. This is not quite perfect because visualizations
// that are not properly centered within their [0,1] localized
// coordinates will not be perfectly centered, but it is much better
// than it was previously.
if (no_mouse_drag) {
horizoff = (my_width - GaigsAV.preferred_width) / 2;
vertoff = (my_height - GaigsAV.preferred_height) / 2;
}
list_of_snapshots.reset();
x = 0;
lt = new LinkedList();
while (x < SnapAt && list_of_snapshots.hasMoreElements()) {
lt = (LinkedList) list_of_snapshots.nextElement();
x++;
}
lt.reset();
animation_done = true;
// System.out.println("before loop " + horizoff);
while (lt.hasMoreElements()) {
obj tempObj = (obj) lt.nextElement();
animation_done =
animation_done && (tempObj.execute(g1 /*offscreen*/, zoom, vertoff, horizoff));
// System.out.println("in loop");
}
// Now slide from image1 to image2
// From the gaff Visualizer by Chris Gaffney
// double step = 4; // Adjust this for more/less granularity between images
double step = 40; // Adjust this for more/less granularity between images
Image buffer = getGraphicsConfiguration().createCompatibleVolatileImage(my_width, my_height);
Graphics2D g2d = (Graphics2D) buffer.getGraphics();
AffineTransform trans = AffineTransform.getTranslateInstance(step * (forward ? -1 : 1), 0);
// AffineTransform orig = g2d.getTransform();
Shape mask = createMask(my_width, my_height);
for (double i = 0; i < my_width; i += step) {
if (i + step > my_width) // last time through loop, so adjust transform
trans =
AffineTransform.getTranslateInstance(((double) (my_width - i)) * (forward ? -1 : 1), 0);
g2d.transform(trans);
g2d.drawImage(image1, 0, 0, this);
g2d.setColor(Color.BLACK);
g2d.fill(mask);
AffineTransform last = g2d.getTransform();
g2d.transform(AffineTransform.getTranslateInstance(my_width * (-1 * (forward ? -1 : 1)), 0));
g2d.drawImage(image2, 0, 0, this);
g2d.setColor(Color.BLACK);
g2d.fill(mask);
g2d.setTransform(last);
this.my_image = buffer;
repaint();
try {
Thread.sleep(10);
} catch (InterruptedException e) {
}
}
Image b = getGraphicsConfiguration().createCompatibleImage(my_width, my_height);
b.getGraphics().drawImage(buffer, 0, 0, null);
this.my_image = b;
return animation_done;
}
// Although it presently returns a boolean, that was only needed
// during my aborted attempted at animated graphics primitives.
// Until those become a reality the boolean value returned by this
// routine is unnecessary
public /*synchronized*/ boolean execute(int sAt) {
// The commented-out variables below are remnants from legacy
// code -- they appear to be no longer needed.
// String urlTemp="";
// int z=0;
// int idx;
// int urlid;
// boolean showURL=false;
animation_done =
true; // May be re-set in paintComponent via indirect paintImmediately call at end
// Was used in abored attempted to
// introduce animated primitives. Now
// it's probably excess baggage that
// remains because I still have hopes
// of eventually having animated
// primitives
SnapAt = sAt;
if (getSize().width != 0 && getSize().height != 0) {
my_width = getSize().width; // set dimensions
my_height = getSize().height;
} else {
my_width = GaigsAV.preferred_width; // set dimensions
my_height = GaigsAV.preferred_height;
}
BufferedImage buff = new BufferedImage(my_width, my_height, BufferedImage.TYPE_INT_RGB);
Graphics2D g2 = (Graphics2D) buff.getGraphics(); // need a separate object each time?
g2.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
g2.setColor(Color.WHITE);
g2.fillRect(0, 0, my_width, my_height);
// Set horizoff and vertoff to properly center the visualization in the
// viewing window. This is not quite perfect because visualizations
// that are not properly centered within their [0,1] localized
// coordinates will not be perfectly centered, but it is much better
// than it was previously.
// if(no_mouse_drag){
// if(first_paint_call){
// // horizoff = (my_width - (int)(0.25 * my_width) -
// // GaigsAV.preferred_width) / 2;
// horizoff = (my_width - GaigsAV.preferred_width) / 2;
// first_paint_call = false;
// }else{
// horizoff = (my_width - GaigsAV.preferred_width) / 2;
// no_mouse_drag = false;
// }
// }
if (no_mouse_drag) {
horizoff = (my_width - GaigsAV.preferred_width) / 2;
vertoff = (my_height - GaigsAV.preferred_height) / 2;
}
int x;
list_of_snapshots.reset();
x = 0;
LinkedList lt = new LinkedList();
while (x < SnapAt && list_of_snapshots.hasMoreElements()) {
lt = (LinkedList) list_of_snapshots.nextElement();
x++;
}
lt.reset();
animation_done = true;
// System.out.println("before loop " + horizoff);
while (lt.hasMoreElements()) {
obj tempObj = (obj) lt.nextElement();
animation_done =
animation_done && (tempObj.execute(g2 /*offscreen*/, zoom, vertoff, horizoff));
// System.out.println("in loop");
}
Shape mask = createMask(buff.getWidth(), buff.getHeight());
g2.setColor(Color.BLACK);
g2.fill(mask);
my_image = buff;
repaint();
return animation_done;
}
/**
* Create RGBA-8 image from ints (each int = AABBGGRR). why isn't there a built in method to do
* this?
*/
public static BufferedImage createRGBA8Image(int[] pix, int width, int height) {
BufferedImage img = new BufferedImage(width, height, BufferedImage.TYPE_INT_ARGB);
img.setRGB(0, 0, width, height, pix, 0, width);
return img;
}
// Thread's run method aimed at creating a bitmap asynchronously
public void run() {
Drawing drawing = new Drawing();
PicText rawPicText = new PicText();
String s = ((PicText) element).getText();
rawPicText.setText(s);
drawing.add(
rawPicText); // bug fix: we must add a CLONE of the PicText, otherwise it loses it former
// parent... (then pb with the view )
drawing.setNotparsedCommands(
"\\newlength{\\jpicwidth}\\settowidth{\\jpicwidth}{"
+ s
+ "}"
+ CR_LF
+ "\\newlength{\\jpicheight}\\settoheight{\\jpicheight}{"
+ s
+ "}"
+ CR_LF
+ "\\newlength{\\jpicdepth}\\settodepth{\\jpicdepth}{"
+ s
+ "}"
+ CR_LF
+ "\\typeout{JPICEDT INFO: \\the\\jpicwidth, \\the\\jpicheight, \\the\\jpicdepth }"
+ CR_LF);
RunExternalCommand.Command commandToRun = RunExternalCommand.Command.BITMAP_CREATION;
// RunExternalCommand command = new RunExternalCommand(drawing, contentType,commandToRun);
boolean isWriteTmpTeXfile = true;
String bitmapExt = "png"; // [pending] preferences
String cmdLine =
"{i}/unix/tetex/create_bitmap.sh {p} {f} "
+ bitmapExt
+ " "
+ fileDPI; // [pending] preferences
ContentType contentType = getContainer().getContentType();
RunExternalCommand.isGUI = false; // System.out, no dialog box // [pending] debug
RunExternalCommand command =
new RunExternalCommand(drawing, contentType, cmdLine, isWriteTmpTeXfile);
command
.run(); // synchronous in an async. thread => it's ok (anyway, we must way until the LaTeX
// process has completed)
if (wantToComputeLatexDimensions) {
// load size of text:
try {
File logFile = new File(command.getTmpPath(), command.getTmpFilePrefix() + ".log");
BufferedReader reader = null;
try {
reader = new BufferedReader(new FileReader(logFile));
} catch (FileNotFoundException fnfe) {
System.out.println("Cannot find log file! " + fnfe.getMessage());
System.out.println(logFile);
} catch (IOException ioex) {
System.out.println("Log file IO exception");
ioex.printStackTrace();
} // utile ?
System.out.println("Log file created! file=" + logFile);
getDimensionsFromLogFile(reader, (PicText) element);
syncStringLocation(); // update dimensions
syncBounds();
syncFrame();
SwingUtilities.invokeLater(
new Thread() {
public void run() {
repaint(null);
}
});
// repaint(null); // now that dimensions are available, we force a repaint() [pending]
// smart-repaint ?
} catch (Exception e) {
e.printStackTrace();
}
}
if (wantToGetBitMap) {
// load image:
try {
File bitmapFile =
new File(command.getTmpPath(), command.getTmpFilePrefix() + "." + bitmapExt);
this.image = ImageIO.read(bitmapFile);
System.out.println(
"Bitmap created! file="
+ bitmapFile
+ ", width="
+ image.getWidth()
+ "pixels, height="
+ image.getHeight()
+ "pixels");
if (image == null) return;
syncStringLocation(); // sets strx, stry, and dimensions of text
syncBounds();
// update the AffineTransform that will be applied to the bitmap before displaying on screen
PicText te = (PicText) element;
text2ModelTr.setToIdentity(); // reset
PicPoint anchor = te.getCtrlPt(TextEditable.P_ANCHOR, ptBuf);
text2ModelTr.rotate(getRotation(), anchor.x, anchor.y); // rotate along P_ANCHOR !
text2ModelTr.translate(te.getLeftX(), te.getTopY());
text2ModelTr.scale(
te.getWidth() / image.getWidth(),
-(te.getHeight() + te.getDepth()) / image.getHeight());
// [pending] should do something special to avoid dividing by 0 or setting a rescaling
// factor to 0 [non invertible matrix] (java will throw an exception)
syncFrame();
SwingUtilities.invokeLater(
new Thread() {
public void run() {
repaint(null);
}
});
// repaint(null); // now that bitmap is available, we force a repaint() [pending]
// smart-repaint ?
} catch (Exception e) {
e.printStackTrace();
}
}
}
