public Haikdu(String filename) {
try {
familySource.Open(filename);
int success = wrappedSource.Open(familySource, true);
if (success < 0) {
familySource.Close();
wrappedSource.Close();
rawSource = new Kdu_simple_file_source(filename);
}
if (rawSource != null) compositor.Create(rawSource);
else compositor.Create(wrappedSource);
int numThreads = Kdu_global.Kdu_get_num_processors();
threadEnv.Create();
for (int thread = 1; thread < numThreads; thread++)
if (!threadEnv.Add_thread()) numThreads = thread;
compositor.Set_thread_env(threadEnv, null);
compositor.Add_ilayer(0, new Kdu_dims(), new Kdu_dims());
compositor.Set_scale(false, false, false, 0.050f);
// Determine dimensions for the rendered result and start processing.
compositor.Get_total_composition_dims(viewDims);
viewSize = viewDims.Access_size();
// Construct Swing frame
imagePanel = new ImagePanel(viewSize);
addWindowListener(
new WindowAdapter() {
public void windowClosing(WindowEvent e) {
System.exit(0);
}
});
getContentPane().add("Center", imagePanel);
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
pack();
setTitle("Haikdu");
setVisible(true);
repaint();
Kdu_coords displaySize = new Kdu_coords(imagePanel.getWidth(), imagePanel.getHeight());
if (viewSize.Get_x() > displaySize.Get_x()) viewSize.Set_x(displaySize.Get_y());
if (viewSize.Get_y() > displaySize.Get_y()) viewSize.Set_y(displaySize.Get_y());
compositor.Set_buffer_surface(viewDims);
compositorBuffer = compositor.Get_composition_buffer(viewDims);
} catch (KduException e) {
System.err.printf("Caught exception during Kdu object construction: %s\n", e.getMessage());
}
render();
}
public void render() {
try {
int regionBufferSize = 0;
int[] regionBuffer = null;
Kdu_dims newRegion = new Kdu_dims();
long kduRenderStart = System.nanoTime();
while (compositor.Process(100000, newRegion)) {
Kdu_coords newOffset = newRegion.Access_pos();
Kdu_coords newSize = newRegion.Access_size();
newOffset.Subtract(viewDims.Access_pos());
int newPixels = newSize.Get_x() * newSize.Get_y();
if (newPixels == 0) continue;
else if (newPixels > regionBufferSize) {
regionBufferSize = newPixels;
regionBuffer = new int[regionBufferSize];
}
compositorBuffer.Get_region(newRegion, regionBuffer);
imagePanel.putRegion(
viewSize.Get_x(),
viewSize.Get_y(),
newSize.Get_x(),
newSize.Get_y(),
newOffset.Get_x(),
newOffset.Get_y(),
regionBuffer);
}
long kduRenderEnd = System.nanoTime();
System.out.printf(
"Processed using %d concurrent threads of execution in %.4fms\n",
threadEnv.Get_num_threads(), (kduRenderEnd - kduRenderStart) * 1e-6);
imagePanel.repaint();
} catch (KduException e) {
System.err.printf(
"Caught exception '%s'; code '%s'\n",
e.getMessage(), Integer.toHexString(e.Get_kdu_exception_code()));
}
}
/**
* Constructor.
*
* @param functions the array of functions to plot
* @param graphPanel the parent graph panel
*/
HeaderPanel(Plottable functions[], GraphPanel graphPanel) {
this();
this.graphPanel = graphPanel;
fpDimensions = maxFunctionDimensions(functions);
buttonPanel.setLayout(new FlowLayout());
buttonPanel.add(headerButton);
imagePanel.setSize(fpDimensions);
functionCard.add(buttonPanel, BorderLayout.WEST);
functionCard.add(imagePanel, BorderLayout.CENTER);
cardLayout.show(this, FUNCTION);
// Header button handler.
headerButton.addActionListener(
new ActionListener() {
public void actionPerformed(ActionEvent ev) {
HeaderPanel.this.graphPanel.doHeaderAction(); // callback
}
});
}
/**
* Set a function and repaint the function panel.
*
* @param xSelection the selected function index
*/
void setFunction(Plottable function) {
this.function = function;
cardLayout.show(this, FUNCTION);
imagePanel.repaint();
}
/** Open function: open a file chooser to select a new image file. */
private void openFile() {
OFImage image = ImageFileManager.getImage();
imagePanel.setImage(image);
frame.pack();
}