Examples with WritableImage javafx.scene.image.WritableImage used on opensource projects

Example 21 with WritableImage

use of javafx.scene.image.WritableImage in project org.csstudio.display.builder by kasemir.

the class ColorMapDialog method updateColorBar.

/**
 * Update color bar in UI from current 'map'
 */
private void updateColorBar() {
    // On Mac OS X it was OK to create an image sized 256 x 1:
    // 256 wide to easily set the 256 colors,
    // 1 pixel height which is then stretched via the BackgroundSize().
    // On Linux, the result was garbled unless the image height matched the
    // actual height, so it's now fixed to COLOR_BAR_HEIGHT
    final WritableImage colors = new WritableImage(256, COLOR_BAR_HEIGHT);
    final PixelWriter writer = colors.getPixelWriter();
    for (int x = 0; x < 256; ++x) {
        final int arfb = ColorMappingFunction.getRGB(map.getColor(x));
        for (int y = 0; y < COLOR_BAR_HEIGHT; ++y) writer.setArgb(x, y, arfb);
    }
    // Stretch image to fill color_bar
    color_bar.setBackground(new Background(new BackgroundImage(colors, BackgroundRepeat.NO_REPEAT, BackgroundRepeat.NO_REPEAT, BackgroundPosition.DEFAULT, new BackgroundSize(BackgroundSize.AUTO, BackgroundSize.AUTO, true, true, true, true))));
}

Example 22 with WritableImage

use of javafx.scene.image.WritableImage in project org.csstudio.display.builder by kasemir.

the class Canvas4 method thread_main.

private void thread_main() {
    final Semaphore done = new Semaphore(0);
    int to_refresh = 1;
    try {
        final BufferedImage buf = new BufferedImage((int) canvas.getWidth(), (int) canvas.getHeight(), BufferedImage.TYPE_INT_RGB);
        final WritableImage image = new WritableImage((int) canvas.getWidth(), (int) canvas.getHeight());
        while (true) {
            // Prepare AWT image
            long start = System.currentTimeMillis();
            DemoHelper.refresh(buf);
            long ms = System.currentTimeMillis() - start;
            if (draw_ms < 0)
                draw_ms = ms;
            else
                draw_ms = (draw_ms * 9 + ms) / 10;
            counter.incrementAndGet();
            // Draw into Canvas on UI thread
            start = System.currentTimeMillis();
            Platform.runLater(() -> {
                SwingFXUtils.toFXImage(buf, image);
                canvas.getGraphicsContext2D().drawImage(image, 0, 0);
                updates.setText(Long.toString(counter.get()));
                done.release();
            });
            // Wait for UI thread
            done.acquire();
            ms = System.currentTimeMillis() - start;
            if (update_ms < 0)
                update_ms = ms;
            else
                update_ms = (update_ms * 9 + ms) / 10;
            to_refresh = 1 - to_refresh;
            Thread.sleep(20);
            if ((counter.get() % 50) == 0) {
                System.out.println("Drawing: " + draw_ms + " ms");
                System.out.println("Update : " + update_ms + " ms");
            }
        }
    } catch (Exception ex) {
        ex.printStackTrace();
    }
}

Example 23 with WritableImage

use of javafx.scene.image.WritableImage in project CCEmuX by CCEmuX.

the class JFXTerminalFont method generateCharImage.

public Image generateCharImage(char c, Color color) {
    val coords = getCharCoords(c);
    val out = new WritableImage(coords.width, coords.height);
    val reader = base.getPixelReader();
    val writer = out.getPixelWriter();
    // TODO: probably faster to use a PixelFormat
    for (int x = 0; x < coords.width; x++) {
        for (int y = 0; y < coords.height; y++) {
            Color oc = reader.getColor(coords.x + x, coords.y + y);
            writer.setColor(x, y, Color.color(oc.getRed() * color.getRed(), oc.getGreen() * color.getGreen(), oc.getBlue() * color.getBlue(), oc.getOpacity()));
        }
    }
    return out;
}

Example 24 with WritableImage

use of javafx.scene.image.WritableImage in project CapsLock by chrootRISCassembler.

the class CharPanelGenerator method generate.

/**
 * Generates a panel image form char.
 * <p>First, this function converts ch to upper case if ch is lower case.</p>
 * <p>Then, this generates javafx's image from ch.And return it.</p>
 * You can fix the resolution of image through {@link capslock.CharPanelGenerator#PANEL_IMAGE_SIZE}
 * and {@link capslock.CharPanelGenerator#FONT_SIZE}.
 * @param ch パネルの生成に使う1文字.
 * @param color 背景色.
 * @return 生成されたパネル.
 */
static final Image generate(char ch, Color color) {
    final Label label = new Label(Character.toString(Character.toUpperCase(ch)));
    label.setMinSize(PANEL_IMAGE_SIZE, PANEL_IMAGE_SIZE);
    label.setMaxSize(PANEL_IMAGE_SIZE, PANEL_IMAGE_SIZE);
    label.setPrefSize(PANEL_IMAGE_SIZE, PANEL_IMAGE_SIZE);
    label.setFont(Font.font(FONT_SIZE));
    label.setAlignment(Pos.CENTER);
    label.setTextFill(Color.WHITE);
    label.setBackground(new Background(new BackgroundFill(color, CornerRadii.EMPTY, Insets.EMPTY)));
    final Scene scene = new Scene(new Group(label));
    final WritableImage img = new WritableImage(PANEL_IMAGE_SIZE, PANEL_IMAGE_SIZE);
    scene.snapshot(img);
    return img;
}

Example 25 with WritableImage

use of javafx.scene.image.WritableImage in project latexdraw by arnobl.

the class HelperTest method assertNotEqualsSnapshot.

default <T extends Node> void assertNotEqualsSnapshot(final T node, final Runnable toExecBetweenSnap) {
    Bounds bounds = node.getBoundsInLocal();
    final SnapshotParameters params = new SnapshotParameters();
    final WritableImage oracle = new WritableImage((int) bounds.getWidth(), (int) bounds.getHeight());
    Platform.runLater(() -> node.snapshot(params, oracle));
    WaitForAsyncUtils.waitForFxEvents();
    if (toExecBetweenSnap != null) {
        toExecBetweenSnap.run();
    }
    bounds = node.getBoundsInLocal();
    final WritableImage observ = new WritableImage((int) bounds.getWidth(), (int) bounds.getHeight());
    Platform.runLater(() -> node.snapshot(params, observ));
    WaitForAsyncUtils.waitForFxEvents();
    assertNotEquals("The two snapshots do not differ.", 100d, computeSnapshotSimilarity(oracle, observ), 0.001);
}