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

Example 31 with Device

use of org.eclipse.swt.graphics.Device 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();
}

Example 32 with Device

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

the class TextAntialiasTab method paint.

@Override
public void paint(GC gc, int width, int height) {
    if (!example.checkAdvancedGraphics())
        return;
    Device device = gc.getDevice();
    if (textColor != null && textColor.getBgColor1() != null)
        gc.setForeground(textColor.getBgColor1());
    gc.setTextAntialias(aliasValues[aliasCombo.getSelectionIndex()]);
    // column 1, row 1
    Font font = new Font(device, getPlatformFontFace(0), 100, SWT.NORMAL);
    gc.setFont(font);
    Point size = gc.stringExtent(text);
    gc.drawString(text, width / 4 - size.x / 2, height / 4 - size.y / 2, true);
    font.dispose();
    // column 1, row 2
    font = new Font(device, getPlatformFontFace(1), 100, SWT.NORMAL);
    gc.setFont(font);
    size = gc.stringExtent(text);
    gc.drawString(text, width / 4 - size.x / 2, 3 * height / 4 - size.y / 2, true);
    font.dispose();
    // column 2, row 1
    font = new Font(device, getPlatformFontFace(2), 50, SWT.NORMAL);
    gc.setFont(font);
    size = gc.stringExtent(text);
    gc.drawString(text, (width - size.x) / 2, 0, true);
    font.dispose();
    // column 2, row 2
    font = new Font(device, getPlatformFontFace(3), 100, SWT.ITALIC);
    gc.setFont(font);
    size = gc.stringExtent(text);
    gc.drawString(text, (width - size.x) / 2, (height - size.y) / 2, true);
    font.dispose();
    // column 2, row 3
    font = new Font(device, getPlatformFontFace(4), 50, SWT.NORMAL);
    gc.setFont(font);
    size = gc.stringExtent(text);
    gc.drawString(text, (width - size.x) / 2, height - size.y, true);
    font.dispose();
    // column 3, row 1
    font = new Font(device, getPlatformFontFace(5), 100, SWT.NORMAL);
    gc.setFont(font);
    size = gc.stringExtent(text);
    gc.drawString(text, 3 * width / 4 - size.x / 2, height / 4 - size.y / 2, true);
    font.dispose();
    // column 3, row 2
    font = new Font(device, getPlatformFontFace(6), 100, SWT.NORMAL);
    gc.setFont(font);
    size = gc.stringExtent(text);
    gc.drawString(text, 3 * width / 4 - size.x / 2, 3 * height / 4 - size.y / 2, true);
    font.dispose();
}

Example 33 with Device

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

the class InlinedAnnotationSupport method getFont.

/**
 * Returns the font according the specified <code>style</code> that the receiver will use to
 * paint textual information.
 *
 * @param style the style of Font widget to get.
 * @return the receiver's font according the specified <code>style</code>
 */
Font getFont(int style) {
    StyledText styledText = fViewer != null ? fViewer.getTextWidget() : null;
    if (styledText == null) {
        return null;
    }
    if (!styledText.getFont().equals(regularFont)) {
        disposeFont();
        regularFont = styledText.getFont();
    }
    Device device = styledText.getDisplay();
    switch(style) {
        case SWT.BOLD:
            if (boldFont != null)
                return boldFont;
            return boldFont = new Font(device, getFontData(style));
        case SWT.ITALIC:
            if (italicFont != null)
                return italicFont;
            return italicFont = new Font(device, getFontData(style));
        case SWT.BOLD | SWT.ITALIC:
            if (boldItalicFont != null)
                return boldItalicFont;
            return boldItalicFont = new Font(device, getFontData(style));
        default:
            return regularFont;
    }
}