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

Example 21 with Device

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

the class CustomFontTab method paint.

@Override
public void paint(GC gc, int width, int height) {
    if (!example.checkAdvancedGraphics())
        return;
    Device device = gc.getDevice();
    String fontFace = fontNames.get(fontFaceCb.getSelectionIndex());
    int points = fontPointSpinner.getSelection();
    int style = styleValues[fontStyleCb.getSelectionIndex()];
    Font font = new Font(device, fontFace, points, style);
    gc.setFont(font);
    gc.setTextAntialias(SWT.ON);
    Point size = gc.stringExtent(text);
    int textWidth = size.x;
    int textHeight = size.y;
    Pattern pattern = null;
    if (fontForeground.getBgColor1() != null) {
        gc.setForeground(fontForeground.getBgColor1());
    } else if (fontForeground.getBgImage() != null) {
        pattern = new Pattern(device, fontForeground.getBgImage());
        gc.setForegroundPattern(pattern);
    }
    gc.drawString(text, (width - textWidth) / 2, (height - textHeight) / 2, true);
    font.dispose();
    if (pattern != null)
        pattern.dispose();
}

Example 22 with Device

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

the class GradientTab method paint.

/**
 * This method draws the gradient patterns that make up the image. The image
 * consists of 4 rows, each consisting of 4 gradient patterns (total of 16).
 */
@Override
public void paint(GC gc, int width, int height) {
    if (!example.checkAdvancedGraphics())
        return;
    Device device = gc.getDevice();
    Image image = createImage(device, colorGB1.getBgColor1(), colorGB2.getBgColor1(), width, height);
    Pattern p = new Pattern(device, image);
    gc.setBackgroundPattern(p);
    gc.fillRectangle(0, 0, width, height);
    p.dispose();
    image.dispose();
}

Example 23 with Device

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

the class GraphicAntialiasTab method paint.

@Override
public void paint(GC gc, int width, int height) {
    if (!example.checkAdvancedGraphics())
        return;
    Device device = gc.getDevice();
    if (ovalColorGB != null && ovalColorGB.getBgColor1() != null)
        gc.setBackground(ovalColorGB.getBgColor1());
    gc.setAntialias(aliasValues[aliasCombo.getSelectionIndex()]);
    Path path = new Path(device);
    float offsetX = 2 * width / 3f, offsetY = height / 3f;
    for (int i = 0; i < 25; i++) {
        path.addArc(offsetX - (50 * i), offsetY - (25 * i), 50 + (100 * i), 25 + (50 * i), 0, 360);
    }
    gc.fillPath(path);
    path.dispose();
}

Example 24 with Device

use of org.eclipse.swt.graphics.Device 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 25 with Device

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

the class LineCapTab method paint.

@Override
public void paint(GC gc, int width, int height) {
    Device device = gc.getDevice();
    // draw side lines
    gc.setLineWidth(1);
    gc.setLineStyle(SWT.LINE_DOT);
    gc.setForeground(device.getSystemColor(SWT.COLOR_BLACK));
    gc.drawLine(3 * width / 16, height / 6, 3 * width / 16, 5 * height / 6);
    gc.drawLine(13 * width / 16, height / 6, 13 * width / 16, 5 * height / 6);
    gc.setLineStyle(SWT.LINE_SOLID);
    // draw labels
    Font font = new Font(device, getPlatformFont(), 20, SWT.NORMAL);
    gc.setFont(font);
    // $NON-NLS-1$
    String text = GraphicsExample.getResourceString("Flat");
    Point size = gc.stringExtent(text);
    gc.drawString(text, (width - size.x) / 2, 3 * height / 12, true);
    // $NON-NLS-1$
    text = GraphicsExample.getResourceString("Square");
    size = gc.stringExtent(text);
    gc.drawString(text, (width - size.x) / 2, 5 * height / 12, true);
    // $NON-NLS-1$
    text = GraphicsExample.getResourceString("Round");
    size = gc.stringExtent(text);
    gc.drawString(text, (width - size.x) / 2, 7 * height / 12, true);
    font.dispose();
    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 lines with caps
    gc.setLineWidth(20);
    gc.setLineCap(SWT.CAP_FLAT);
    gc.drawLine(3 * width / 16, 2 * height / 6, 13 * width / 16, 2 * height / 6);
    gc.setLineCap(SWT.CAP_SQUARE);
    gc.drawLine(3 * width / 16, 3 * height / 6, 13 * width / 16, 3 * height / 6);
    gc.setLineCap(SWT.CAP_ROUND);
    gc.drawLine(3 * width / 16, 4 * height / 6, 13 * width / 16, 4 * height / 6);
    if (pattern != null)
        pattern.dispose();
}