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

Example 11 with Device

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

the class CurvesSWTTab 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(2);
    Transform transform;
    // ----- letter s -----
    sXPos = 4 * width / 16;
    sYPos = (height - 150) / 2;
    transform = new Transform(device);
    transform.translate(sXPos, sYPos);
    gc.setTransform(transform);
    transform.dispose();
    gc.setForeground(device.getSystemColor(SWT.COLOR_DARK_BLUE));
    gc.drawString(GraphicsExample.getResourceString("Cubic"), 0, 175, true);
    Path path = new Path(device);
    path.cubicTo(-200 + sDiffX1, 50 + sDiffY1, 200 + sDiffX2, 100 + sDiffY2, 0, 150);
    gc.drawPath(path);
    path.dispose();
    // draw the spline points
    gc.setTransform(null);
    gc.drawRectangle(sRect1.x + (int) sXPos, sRect1.y + (int) sYPos, sRect1.width, sRect1.height);
    gc.drawRectangle(sRect2.x + (int) sXPos, sRect2.y + (int) sYPos, sRect2.width, sRect2.height);
    // ----- letter w -----
    wXPos = 6 * width / 16;
    wYPos = (height - 150) / 2;
    transform = new Transform(device);
    transform.translate(wXPos, wYPos);
    gc.setTransform(transform);
    transform.dispose();
    gc.setForeground(device.getSystemColor(SWT.COLOR_GRAY));
    gc.drawString(GraphicsExample.getResourceString("Quadratic"), 0, -50, true);
    gc.drawString(GraphicsExample.getResourceString("Quadratic"), 110, -50, true);
    path = new Path(device);
    path.quadTo(100 + wDiffX1, 300 + wDiffY1, 100, 0);
    path.quadTo(100 + wDiffX2, 300 + wDiffY2, 200, 0);
    gc.drawPath(path);
    path.dispose();
    gc.setTransform(null);
    gc.drawRectangle(wRect1.x + (int) wXPos, wRect1.y + (int) wYPos, wRect1.width, wRect1.height);
    gc.drawRectangle(wRect2.x + (int) wXPos, wRect2.y + (int) wYPos, wRect2.width, wRect2.height);
    // ----- top of letter t -----
    topTXPos = 11 * width / 16;
    topTYPos = (height - 150) / 2;
    transform = new Transform(device);
    transform.translate(topTXPos, topTYPos);
    gc.setTransform(transform);
    transform.dispose();
    gc.setForeground(device.getSystemColor(SWT.COLOR_YELLOW));
    gc.drawString(GraphicsExample.getResourceString("Cubic"), 25, -50, true);
    path = new Path(device);
    path.cubicTo(33 + tTopDiffX1, -20 + tTopDiffY1, 66 + tTopDiffX2, 20 + tTopDiffY2, 100, 0);
    gc.drawPath(path);
    path.dispose();
    gc.setTransform(null);
    gc.drawRectangle(tTopRect1.x + (int) topTXPos, tTopRect1.y + (int) topTYPos, tTopRect1.width, tTopRect1.height);
    gc.drawRectangle(tTopRect2.x + (int) topTXPos, tTopRect2.y + (int) topTYPos, tTopRect2.width, tTopRect2.height);
    // ----- vertical bar of letter t -----
    botTXPos = 12 * width / 16;
    botTYPos = (height - 150) / 2;
    transform = new Transform(device);
    transform.translate(botTXPos, botTYPos);
    gc.setTransform(transform);
    transform.dispose();
    gc.setForeground(device.getSystemColor(SWT.COLOR_RED));
    gc.drawString(GraphicsExample.getResourceString("Cubic"), 0, 175, true);
    path = new Path(device);
    path.cubicTo(-33 + tBotDiffX1, 50 + tBotDiffY1, 33 + tBotDiffX2, 100 + tBotDiffY2, 0, 150);
    gc.drawPath(path);
    path.dispose();
    gc.setTransform(null);
    gc.drawRectangle(tBottomRect1.x + (int) botTXPos, tBottomRect1.y + (int) botTYPos, tBottomRect1.width, tBottomRect1.height);
    gc.drawRectangle(tBottomRect2.x + (int) botTXPos, tBottomRect2.y + (int) botTYPos, tBottomRect2.width, tBottomRect2.height);
    font.dispose();
}

Example 12 with Device

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

the class CustomAlphaTab method paint.

@Override
public void paint(GC gc, int width, int height) {
    if (!example.checkAdvancedGraphics())
        return;
    Device device = gc.getDevice();
    Pattern pattern = null;
    if (background.getBgColor1() != null) {
        gc.setBackground(background.getBgColor1());
    } else if (background.getBgImage() != null) {
        pattern = new Pattern(device, background.getBgImage());
        gc.setBackgroundPattern(pattern);
    }
    gc.setAntialias(SWT.ON);
    gc.setAlpha(alphaSpinner.getSelection());
    // rotate on center
    Transform transform = new Transform(device);
    transform.translate(width / 2, height / 2);
    transform.rotate(-angle);
    transform.translate(-width / 2, -height / 2);
    gc.setTransform(transform);
    transform.dispose();
    // choose the smallest between height and width
    int diameter = (height < width) ? height : width;
    Path path = new Path(device);
    path.addArc((width - diameter / 5) / 2, (height - diameter / 5) / 2, diameter / 5, diameter / 5, 0, 360);
    path.addArc(5 * (width - diameter / 8) / 12, 4 * (height - diameter / 8) / 12, diameter / 8, diameter / 8, 0, 360);
    path.addArc(7 * (width - diameter / 8) / 12, 8 * (height - diameter / 8) / 12, diameter / 8, diameter / 8, 0, 360);
    path.addArc(6 * (width - diameter / 12) / 12, 3 * (height - diameter / 12) / 12, diameter / 12, diameter / 12, 0, 360);
    path.addArc(6 * (width - diameter / 12) / 12, 9 * (height - diameter / 12) / 12, diameter / 12, diameter / 12, 0, 360);
    path.addArc(11.5f * (width - diameter / 18) / 20, 5 * (height - diameter / 18) / 18, diameter / 18, diameter / 18, 0, 360);
    path.addArc(8.5f * (width - diameter / 18) / 20, 13 * (height - diameter / 18) / 18, diameter / 18, diameter / 18, 0, 360);
    path.addArc(62f * (width - diameter / 25) / 100, 32 * (height - diameter / 25) / 100, diameter / 25, diameter / 25, 0, 360);
    path.addArc(39f * (width - diameter / 25) / 100, 67 * (height - diameter / 25) / 100, diameter / 25, diameter / 25, 0, 360);
    gc.fillPath(path);
    path.dispose();
    if (pattern != null)
        pattern.dispose();
}

Example 13 with Device

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

the class FontBounceTab 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, getPlatformFontFace(fontFace), fontSize, fontStyle);
    gc.setFont(font);
    Point size = gc.stringExtent(text);
    textWidth = size.x;
    textHeight = size.y;
    Path path = new Path(device);
    path.addString(text, x, y, font);
    gc.setForeground(device.getSystemColor(foreGrdColor));
    gc.setBackground(device.getSystemColor(fillColor));
    gc.fillPath(path);
    gc.drawPath(path);
    font.dispose();
    path.dispose();
}

Example 14 with Device

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

the class GraphicsExample method createCanvas.

void createCanvas(Composite parent) {
    int style = SWT.NO_BACKGROUND;
    if (dbItem.getSelection())
        style |= SWT.DOUBLE_BUFFERED;
    canvas = new Canvas(parent, style);
    canvas.addListener(SWT.Paint, event -> {
        GC gc = event.gc;
        Rectangle rect = canvas.getClientArea();
        Device device = gc.getDevice();
        Pattern pattern = null;
        if (background.getBgColor1() != null) {
            if (background.getBgColor2() != null) {
                // gradient
                pattern = new Pattern(device, 0, 0, rect.width, rect.height, background.getBgColor1(), background.getBgColor2());
                gc.setBackgroundPattern(pattern);
            } else {
                // solid color
                gc.setBackground(background.getBgColor1());
            }
        } else if (background.getBgImage() != null) {
            // image
            pattern = new Pattern(device, background.getBgImage());
            gc.setBackgroundPattern(pattern);
        }
        gc.fillRectangle(rect);
        GraphicsTab tab = getTab();
        if (tab != null)
            tab.paint(gc, rect.width, rect.height);
        if (pattern != null)
            pattern.dispose();
    });
}

Example 15 with Device

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

the class Bug421127_Clipping_is_wrong method paintCanvas.

private static void paintCanvas(PaintEvent event, Canvas canvas) {
    GC gc = gc(event);
    Rectangle bounds = canvas.getBounds();
    Rectangle clipping = gc.getClipping();
    Device device = gc.getDevice();
    int color = SWT.COLOR_GREEN;
    String text = "CLIPPING AND BOUNDS INTERSECT";
    if (!clipping.intersects(bounds)) {
        color = SWT.COLOR_RED;
        text = "CLIPPING AND BOUNDS DON'T INTERSECT";
    }
    gc.drawText(text, 0, 0);
    gc.setAlpha(25);
    gc.setBackground(device.getSystemColor(color));
    gc.fillRectangle(bounds);
    gc.setAlpha(255);
}