Examples with Transform org.eclipse.swt.graphics.Transform used on opensource projects

Example 21 with Transform

use of org.eclipse.swt.graphics.Transform in project eclipse.platform.swt by eclipse.

the class CountDownTab method paint.

@Override
public void paint(GC gc, int width, int height) {
    if (!example.checkAdvancedGraphics())
        return;
    Device device = gc.getDevice();
    // diameter of the circle in pixels
    int diameter = ((width < height) ? width - 25 : height - 25);
    if (!getAnimation() && nextNumber == 0) {
        Font font = new Font(device, getPlatformFontFace(1), diameter / 2, SWT.NONE);
        gc.setFont(font);
        // display "SWT"
        gc.setForeground(device.getSystemColor(SWT.COLOR_DARK_BLUE));
        gc.setTextAntialias(SWT.ON);
        // determine the dimensions of the word
        String text = GraphicsExample.getResourceString("SWT");
        Point point = gc.stringExtent(text);
        int textWidth = point.x;
        int textHeight = point.y;
        gc.drawString(text, (width - textWidth) / 2, (height - textHeight) / 2, true);
        font.dispose();
    } else {
        Font font = new Font(device, getPlatformFontFace(0), 6 * diameter / 10, SWT.NONE);
        gc.setFont(font);
        // set attributes from controls
        gc.setLineWidth(lineWidthSpinner.getSelection());
        // round line ends
        gc.setLineCap(lineCap);
        // smooth jagged edges
        gc.setAntialias(antialias);
        // smooth jagged edges
        gc.setTextAntialias(antialias);
        // draw the circles
        Path path = new Path(device);
        path.addArc((width - diameter) / 2, (height - diameter) / 2, diameter, diameter, 0, 360);
        path.addArc((width - diameter + 50) / 2, (height - diameter + 50) / 2, diameter - 50, diameter - 50, 0, 360);
        gc.drawPath(path);
        gc.setBackground(device.getSystemColor(SWT.COLOR_RED));
        gc.fillPath(path);
        path.dispose();
        Point point = gc.stringExtent(Integer.valueOf(nextNumber).toString());
        int textWidth = point.x;
        int textHeight = point.y;
        // draw the number
        gc.drawString(Integer.valueOf(nextNumber).toString(), (width - textWidth) / 2, (height - textHeight) / 2, true);
        // draw the rotating arm
        Transform transform = new Transform(device);
        transform.translate(width / 2, height / 2);
        transform.rotate(angle);
        gc.setTransform(transform);
        gc.setForeground(device.getSystemColor(SWT.COLOR_RED));
        gc.drawLine(0, 0, diameter / 2, 0);
        transform.dispose();
        font.dispose();
    }
}

Example 22 with Transform

use of org.eclipse.swt.graphics.Transform in project eclipse.platform.swt by eclipse.

the class CurvesTab method paint.

@Override
public void paint(GC gc, int width, int height) {
    if (!example.checkAdvancedGraphics())
        return;
    Device device = gc.getDevice();
    Font font = new Font(device, getPlatformFont(), 16, SWT.ITALIC);
    gc.setFont(font);
    gc.setLineWidth(5);
    Transform transform;
    // ----- cubic curve -----
    cubXPos = width / 5;
    cubYPos = height / 3;
    transform = new Transform(device);
    transform.translate(cubXPos, cubYPos);
    gc.setTransform(transform);
    transform.dispose();
    gc.setForeground(device.getSystemColor(SWT.COLOR_RED));
    gc.drawString(GraphicsExample.getResourceString("Cubic"), 25, -70, true);
    Path path = new Path(device);
    path.cubicTo(133 + cubDiffX1, -60 + cubDiffY1, 266 + cubDiffX2, 60 + cubDiffY2, 400 + cubEndDiffX, 0 + cubEndDiffY);
    gc.drawPath(path);
    path.dispose();
    gc.setTransform(null);
    gc.setForeground(device.getSystemColor(SWT.COLOR_DARK_BLUE));
    gc.drawRectangle(cubHndl1.x + (int) cubXPos, cubHndl1.y + (int) cubYPos, cubHndl1.width, cubHndl1.height);
    gc.drawRectangle(cubHndl2.x + (int) cubXPos, cubHndl2.y + (int) cubYPos, cubHndl2.width, cubHndl2.height);
    gc.drawRectangle(cubEndHndl.x + (int) cubXPos, cubEndHndl.y + (int) cubYPos, cubEndHndl.width, cubEndHndl.height);
    // ----- quadratic curve -----
    quadXPos = width / 5;
    quadYPos = 2 * height / 3;
    transform = new Transform(device);
    transform.translate(quadXPos, quadYPos);
    gc.setTransform(transform);
    transform.dispose();
    gc.setForeground(device.getSystemColor(SWT.COLOR_GREEN));
    gc.drawString(GraphicsExample.getResourceString("Quadratic"), 0, -50, true);
    path = new Path(device);
    path.quadTo(200 + quadDiffX, 150 + quadDiffY, 400 + quadEndDiffX, 0 + quadEndDiffY);
    gc.drawPath(path);
    path.dispose();
    gc.setTransform(null);
    gc.setForeground(device.getSystemColor(SWT.COLOR_GRAY));
    gc.drawRectangle(quadHndl.x + (int) quadXPos, quadHndl.y + (int) quadYPos, quadHndl.width, quadHndl.height);
    gc.drawRectangle(quadEndHndl.x + (int) quadXPos, quadEndHndl.y + (int) quadYPos, quadEndHndl.width, quadEndHndl.height);
    font.dispose();
}

Example 23 with Transform

use of org.eclipse.swt.graphics.Transform in project eclipse.platform.swt by eclipse.

the class InterpolationTab method paint.

@Override
public void paint(GC gc, int width, int height) {
    if (!example.checkAdvancedGraphics())
        return;
    Device device = gc.getDevice();
    float scaleX = 10f;
    float scaleY = 10f;
    Image image = null;
    switch(imageCb.getSelectionIndex()) {
        case 0:
            image = GraphicsExample.loadImage(device, GraphicsExample.class, "home_nav.gif");
            break;
        case 1:
            image = GraphicsExample.loadImage(device, GraphicsExample.class, "help.gif");
            break;
        case 2:
            image = GraphicsExample.loadImage(device, GraphicsExample.class, "task.gif");
            break;
        case 3:
            image = GraphicsExample.loadImage(device, GraphicsExample.class, "font.gif");
            break;
        case 4:
            image = GraphicsExample.loadImage(device, GraphicsExample.class, "cube.png");
            scaleX = 0.75f;
            scaleY = 0.5f;
            break;
        case 5:
            image = GraphicsExample.loadImage(device, GraphicsExample.class, "swt.png");
            scaleX = 0.4f;
            scaleY = 0.8f;
            break;
        case 6:
            image = GraphicsExample.loadImage(device, GraphicsExample.class, "ovals.png");
            scaleX = 1.1f;
            scaleY = 0.5f;
            break;
    }
    Rectangle bounds = image.getBounds();
    // draw the original image
    gc.drawImage(image, (width - bounds.width) / 2, 20);
    Font font = new Font(device, getPlatformFont(), 20, SWT.NORMAL);
    gc.setFont(font);
    // write some text below the original image
    // $NON-NLS-1$
    String text = GraphicsExample.getResourceString("OriginalImg");
    Point size = gc.stringExtent(text);
    gc.drawString(text, (width - size.x) / 2, 25 + bounds.height, true);
    Transform transform = new Transform(device);
    transform.translate((width - (bounds.width * scaleX + 10) * 4) / 2, 25 + bounds.height + size.y + (height - (25 + bounds.height + size.y + bounds.height * scaleY)) / 2);
    transform.scale(scaleX, scaleY);
    // --- draw strings ---
    float[] point = new float[2];
    // $NON-NLS-1$
    text = GraphicsExample.getResourceString("None");
    size = gc.stringExtent(text);
    point[0] = (scaleX * bounds.width + 5 - size.x) / (2 * scaleX);
    point[1] = bounds.height;
    transform.transform(point);
    gc.drawString(text, (int) point[0], (int) point[1], true);
    // $NON-NLS-1$
    text = GraphicsExample.getResourceString("Low");
    size = gc.stringExtent(text);
    point[0] = (scaleX * bounds.width + 5 - size.x) / (2 * scaleX) + bounds.width;
    point[1] = bounds.height;
    transform.transform(point);
    gc.drawString(text, (int) point[0], (int) point[1], true);
    // $NON-NLS-1$
    text = GraphicsExample.getResourceString("Default");
    size = gc.stringExtent(text);
    point[0] = (scaleX * bounds.width + 5 - size.x) / (2 * scaleX) + 2 * bounds.width;
    point[1] = bounds.height;
    transform.transform(point);
    gc.drawString(text, (int) point[0], (int) point[1], true);
    // $NON-NLS-1$
    text = GraphicsExample.getResourceString("High");
    size = gc.stringExtent(text);
    point[0] = (scaleX * bounds.width + 5 - size.x) / (2 * scaleX) + 3 * bounds.width;
    point[1] = bounds.height;
    transform.transform(point);
    gc.drawString(text, (int) point[0], (int) point[1], true);
    gc.setTransform(transform);
    transform.dispose();
    // --- draw images ---
    // no interpolation
    gc.setInterpolation(SWT.NONE);
    gc.drawImage(image, 0, 0);
    // low interpolation
    gc.setInterpolation(SWT.LOW);
    gc.drawImage(image, bounds.width, 0);
    // default interpolation
    gc.setInterpolation(SWT.DEFAULT);
    gc.drawImage(image, 2 * bounds.width, 0);
    // high interpolation
    gc.setInterpolation(SWT.HIGH);
    gc.drawImage(image, 3 * bounds.width, 0);
    font.dispose();
    if (image != null)
        image.dispose();
}

Example 24 with Transform

use of org.eclipse.swt.graphics.Transform in project eclipse.platform.swt by eclipse.

the class RGBTab method paint.

@Override
public void paint(GC gc, int width, int height) {
    if (!example.checkAdvancedGraphics())
        return;
    Device device = gc.getDevice();
    // horizontal rectangle
    Transform transform = new Transform(device);
    transform.translate(0, translateY);
    gc.setTransform(transform);
    transform.dispose();
    Path path = new Path(device);
    path.addRectangle(0, 0, width, 50);
    Pattern pattern = new Pattern(device, 0, 0, width, 50, device.getSystemColor(SWT.COLOR_BLUE), 0x7f, device.getSystemColor(SWT.COLOR_RED), 0x7f);
    gc.setBackgroundPattern(pattern);
    gc.fillPath(path);
    gc.drawPath(path);
    path.dispose();
    // vertical rectangle
    transform = new Transform(device);
    transform.translate(translateX, 0);
    gc.setTransform(transform);
    transform.dispose();
    path = new Path(device);
    path.addRectangle(0, 0, 50, height);
    pattern.dispose();
    pattern = new Pattern(device, 0, 0, 50, height, device.getSystemColor(SWT.COLOR_DARK_CYAN), 0x7f, device.getSystemColor(SWT.COLOR_WHITE), 0x7f);
    gc.setBackgroundPattern(pattern);
    gc.fillPath(path);
    gc.drawPath(path);
    path.dispose();
    // diagonal rectangle from bottom right corner
    Rectangle rect = new Rectangle(0, 0, 50, height);
    transform = new Transform(device);
    transform.translate(width - diagTranslateX1, (height / 2) - diagTranslateY1);
    // rotate on center of rectangle
    transform.translate(rect.width / 2, rect.height / 2);
    transform.rotate(45);
    transform.translate(-rect.width / 2, -rect.height / 2);
    gc.setTransform(transform);
    transform.dispose();
    path = new Path(device);
    path.addRectangle(rect.x, rect.y, rect.width, rect.height);
    pattern.dispose();
    pattern = new Pattern(device, rect.x, rect.y, rect.width, rect.height, device.getSystemColor(SWT.COLOR_DARK_GREEN), 0x7f, device.getSystemColor(SWT.COLOR_DARK_MAGENTA), 0x7f);
    gc.setBackgroundPattern(pattern);
    gc.fillPath(path);
    gc.drawPath(path);
    path.dispose();
    // diagonal rectangle from top right corner
    transform = new Transform(device);
    transform.translate(width - diagTranslateX2, (height / 2) - diagTranslateY2);
    // rotate on center of rectangle
    transform.translate(rect.width / 2, rect.height / 2);
    transform.rotate(-45);
    transform.translate(-rect.width / 2, -rect.height / 2);
    gc.setTransform(transform);
    transform.dispose();
    path = new Path(device);
    path.addRectangle(rect.x, rect.y, rect.width, rect.height);
    pattern.dispose();
    pattern = new Pattern(device, rect.x, rect.y, rect.width, rect.height, device.getSystemColor(SWT.COLOR_DARK_RED), 0x7f, device.getSystemColor(SWT.COLOR_YELLOW), 0x7f);
    gc.setBackgroundPattern(pattern);
    gc.fillPath(path);
    gc.drawPath(path);
    pattern.dispose();
    path.dispose();
}

Example 25 with Transform

use of org.eclipse.swt.graphics.Transform in project eclipse.platform.swt by eclipse.

the class SpiralTab method paint.

@Override
public void paint(GC gc, int width, int height) {
    if (!example.checkAdvancedGraphics())
        return;
    Device device = gc.getDevice();
    // set line attributes
    gc.setLineWidth(20);
    // round line ends
    gc.setLineCap(SWT.CAP_ROUND);
    // smooth jagged edges
    gc.setAntialias(SWT.ON);
    Pattern pattern = null;
    if (foreground.getBgColor1() != null) {
        gc.setForeground(foreground.getBgColor1());
    } else if (foreground.getBgImage() != null) {
        pattern = new Pattern(device, foreground.getBgImage());
        gc.setForegroundPattern(pattern);
    }
    // draw petals for the spiral
    Transform transform;
    int n = petalSpinner.getSelection();
    for (int i = 0; i < n; i++) {
        transform = new Transform(device);
        transform.translate(width / 2, height / 2);
        transform.rotate(-(angle + 360 / n * i));
        gc.setTransform(transform);
        gc.drawArc(0, 0, width / 3, height / 6, 0, 180);
        transform.dispose();
    }
    if (pattern != null)
        pattern.dispose();
}