org.eclipse.swt.graphics.Color.getAlpha()方法的使用及代码示例

x33g5p2x  于2022-01-18 转载在 其他  
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本文整理了Java中org.eclipse.swt.graphics.Color.getAlpha()方法的一些代码示例，展示了Color.getAlpha()的具体用法。这些代码示例主要来源于Github/Stackoverflow/Maven等平台，是从一些精选项目中提取出来的代码，具有较强的参考意义，能在一定程度帮忙到你。Color.getAlpha()方法的具体详情如下：
包路径：org.eclipse.swt.graphics.Color
类名称：Color
方法名：getAlpha

Color.getAlpha介绍

[英]Returns the amount of alpha in the color, from 0 (transparent) to 255 (opaque).
[中]返回颜色中的alpha量，从0（透明）到255（不透明）。

代码示例

代码示例来源：origin: stefanhaustein/flowgrid

public void setStrokeWidth(double sw) {
  strokeWidth = sw;
  strokeWidthPx = Math.round(canvasControl.pixelSize(sw));
  gc().setLineWidth(strokeWidthPx);
  stroke = strokeWidthPx > 0 && foreground.getAlpha() != 0;
}

代码示例来源：origin: org.eclipse.platform/org.eclipse.swt.examples

String getRGBcolor(int id){
  Color color = display.getSystemColor(id);
  return String.format("(%d,%d,%d,%d)", color.getRed(), color.getGreen(),
      color.getBlue(), color.getAlpha());
}

代码示例来源：origin: org.eclipse.scout.sdk.deps/org.eclipse.swt.win32.win32.x86

private void _setBackground (Color color) {
  int pixel = -1;
  int alpha = 255;
  if (color != null) {
    if (color.isDisposed ()) error (SWT.ERROR_INVALID_ARGUMENT);
    pixel = color.handle;
    alpha = color.getAlpha();
  }
  if (pixel == background && alpha == backgroundAlpha) return;
  background = pixel;
  backgroundAlpha = alpha;
  updateBackgroundColor ();
}

代码示例来源：origin: org.eclipse.platform/org.eclipse.swt.gtk.linux.s390x

/**
 * Returns a string containing a concise, human-readable
 * description of the receiver.
 *
 * @return a string representation of the receiver
 */
@Override
public String toString () {
  if (isDisposed()) return "Color {*DISPOSED*}";
  return "Color {" + getRed() + ", " + getGreen() + ", " + getBlue() + ", " + getAlpha() +"}";
}

代码示例来源：origin: org.eclipse.platform/org.eclipse.swt.gtk.linux.ppc

/**
 * Returns a string containing a concise, human-readable
 * description of the receiver.
 *
 * @return a string representation of the receiver
 */
@Override
public String toString () {
  if (isDisposed()) return "Color {*DISPOSED*}";
  return "Color {" + getRed() + ", " + getGreen() + ", " + getBlue() + ", " + getAlpha() +"}";
}

代码示例来源：origin: org.eclipse.scout.sdk.deps/org.eclipse.swt.win32.win32.x86

/**
 * Returns a string containing a concise, human-readable
 * description of the receiver.
 *
 * @return a string representation of the receiver
 */
@Override
public String toString () {
  if (isDisposed()) return "Color {*DISPOSED*}"; //$NON-NLS-1$
  return "Color {" + getRed() + ", " + getGreen() + ", " + getBlue() + ", " + getAlpha() + "}"; //$NON-NLS-1$//$NON-NLS-2$ //$NON-NLS-3$ //$NON-NLS-4$
}

代码示例来源：origin: org.eclipse.platform/org.eclipse.swt.gtk.aix.ppc

/**
 * Returns a string containing a concise, human-readable
 * description of the receiver.
 *
 * @return a string representation of the receiver
 */
@Override
public String toString () {
  if (isDisposed()) return "Color {*DISPOSED*}";
  return "Color {" + getRed() + ", " + getGreen() + ", " + getBlue() + ", " + getAlpha() +"}";
}

代码示例来源：origin: org.eclipse.rap/org.eclipse.rap.rwt

/**
 * Returns a string containing a concise, human-readable description of the
 * receiver.
 *
 * @return a string representation of the receiver
 */
@Override
public String toString() {
 if( isDisposed() ) {
  return "Color {*DISPOSED*}";
 }
 return "Color {" + getRed() + ", " + getGreen() + ", " + getBlue() + ", " + getAlpha() + "}";
}

代码示例来源：origin: org.eclipse.platform/org.eclipse.swt.gtk.linux.s390x

/**
 * Returns an <code>RGBA</code> representing the receiver.
 *
 * @return the RGBA for the color
 *
 * @exception SWTException <ul>
 *    <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li>
 * </ul>
 * @since 3.104
 */
public RGBA getRGBA () {
  if (isDisposed()) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED);
  return new RGBA(getRed(), getGreen(), getBlue(), getAlpha());
}

代码示例来源：origin: org.eclipse.platform/org.eclipse.swt.gtk.aix.ppc

/**
 * Returns an <code>RGBA</code> representing the receiver.
 *
 * @return the RGBA for the color
 *
 * @exception SWTException <ul>
 *    <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li>
 * </ul>
 * @since 3.104
 */
public RGBA getRGBA () {
  if (isDisposed()) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED);
  return new RGBA(getRed(), getGreen(), getBlue(), getAlpha());
}

代码示例来源：origin: org.eclipse.platform/org.eclipse.swt.gtk.linux.ppc

/**
 * Returns an <code>RGBA</code> representing the receiver.
 *
 * @return the RGBA for the color
 *
 * @exception SWTException <ul>
 *    <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li>
 * </ul>
 * @since 3.104
 */
public RGBA getRGBA () {
  if (isDisposed()) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED);
  return new RGBA(getRed(), getGreen(), getBlue(), getAlpha());
}

代码示例来源：origin: org.eclipse.rap/org.eclipse.rap.rwt

/**
 * Returns an <code>RGBA</code> representing the receiver.
 *
 * @return the RGBA for the color
 *
 * @exception SWTException <ul>
 *    <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li>
 * </ul>
 * @since 3.1
 */
public RGBA getRGBA() {
 if( isDisposed() ) {
  SWT.error( SWT.ERROR_GRAPHIC_DISPOSED );
 }
 return new RGBA( getRed(), getGreen(), getBlue(), getAlpha() );
}

代码示例来源：origin: org.eclipse.platform/org.eclipse.swt.gtk.linux.ppc

if (color.isDisposed ()) error(SWT.ERROR_INVALID_ARGUMENT);
gdkColor = color.handle;
backgroundAlpha = color.getAlpha ();

代码示例来源：origin: org.eclipse.platform/org.eclipse.swt.gtk.aix.ppc

if (color.isDisposed ()) error(SWT.ERROR_INVALID_ARGUMENT);
gdkColor = color.handle;
backgroundAlpha = color.getAlpha ();

代码示例来源：origin: org.eclipse.platform/org.eclipse.swt.gtk.linux.s390x

if (color.isDisposed ()) error(SWT.ERROR_INVALID_ARGUMENT);
gdkColor = color.handle;
backgroundAlpha = color.getAlpha ();

代码示例来源：origin: org.eclipse.rap/org.eclipse.rap.rwt

public void renderBackground( IControlAdapter controlAdapter ) {
 if( hasPreserved( BACKGROUND ) ) {
  Color actualBackground = controlAdapter.getUserBackground();
  boolean actualTransparency = controlAdapter.getBackgroundTransparency();
  boolean colorChanged = changed( actualBackground, background, null );
  boolean transparencyChanged = changed( actualTransparency, backgroundTransparency, false );
  if( transparencyChanged || colorChanged ) {
   RGB rgb = null;
   int alpha = 0;
   if( actualBackground != null ) {
    rgb = actualBackground.getRGB();
    alpha = actualTransparency ? 0 : actualBackground.getAlpha();
   } else if( actualTransparency ) {
    rgb = new RGB( 0, 0, 0 );
   }
   getRemoteObject().set( PROP_BACKGROUND, toJson( rgb, alpha ) );
  }
 }
}

代码示例来源：origin: org.eclipse.platform/org.eclipse.swt.gtk.linux.ppc

if ((background != null || (getStyle() & SWT.DOUBLE_BUFFERED) == 0) && background.getAlpha() > 0) {
  gc.setBackground(getBackground());
  gc.fillRectangle(rect);

代码示例来源：origin: org.eclipse.scout.sdk.deps/org.eclipse.swt.win32.win32.x86

if ((background != null || (getStyle() & SWT.DOUBLE_BUFFERED) == 0) && background.getAlpha() > 0) {
  gc.setBackground(getBackground());
  gc.fillRectangle(rect);

代码示例来源：origin: org.eclipse.platform/org.eclipse.swt.gtk.aix.ppc

if ((background != null || (getStyle() & SWT.DOUBLE_BUFFERED) == 0) && background.getAlpha() > 0) {
  gc.setBackground(getBackground());
  gc.fillRectangle(rect);

代码示例来源：origin: org.eclipse.platform/org.eclipse.swt.gtk.linux.s390x

if ((background != null || (getStyle() & SWT.DOUBLE_BUFFERED) == 0) && background.getAlpha() > 0) {
  gc.setBackground(getBackground());
  gc.fillRectangle(rect);

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