本文整理汇总了Java中org.eclipse.swt.graphics.GC.setAlpha方法的典型用法代码示例。如果您正苦于以下问题：Java GC.setAlpha方法的具体用法？Java GC.setAlpha怎么用？Java GC.setAlpha使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类org.eclipse.swt.graphics.GC的用法示例。
在下文中一共展示了GC.setAlpha方法的6个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Java代码示例。
示例1: drawString
import org.eclipse.swt.graphics.GC; //导入方法依赖的package包/类
public static void drawString(GC gc, String str, float x, float y, float width, float height, int bgAlpha) {
if (str == null)
return;
org.eclipse.swt.graphics.Point size = gc.stringExtent(str);
int posX = Math.round(x + width / 2 - size.x / 2);
int posY = Math.round(y + height / 2 - size.y / 2);
if (bgAlpha >= 255) {
gc.drawString(str, posX, posY);
} else {
gc.drawString(str, posX, posY, true);
if (bgAlpha > 0) {
gc.setAlpha(bgAlpha);
gc.fillRectangle(posX, posY, size.x, size.y);
gc.setAlpha(255);
}
}
}
示例2: cellPaint
import org.eclipse.swt.graphics.GC; //导入方法依赖的package包/类
@Override
public void cellPaint(GC gc, TableCellSWT cell) {
Object ds = cell.getDataSource();
if (!(ds instanceof TorrentOpenFileOptions)) {
return;
}
TorrentOpenFileOptions tfi = (TorrentOpenFileOptions) ds;
float pct = tfi.lSize / (float) tfi.parent.getTorrent().getSize();
Rectangle bounds = cell.getBounds();
bounds.width = (int) (bounds.width * pct);
if (bounds.width > 2) {
bounds.x++;
bounds.y++;
bounds.height -= 2;
bounds.width -= 2;
gc.setBackground(gc.getForeground());
int alpha = gc.getAlpha();
gc.setAlpha(10);
gc.fillRectangle(bounds);
gc.setAlpha(alpha);
}
}
示例3: doPaint
import org.eclipse.swt.graphics.GC; //导入方法依赖的package包/类
protected void doPaint(GC gc, PaintEvent event) {
gc.setBackground(Display.getDefault().getSystemColor(SWT.COLOR_WHITE));
gc.setForeground(Display.getDefault().getSystemColor(SWT.COLOR_BLACK));
gc.fillRectangle(event.x, event.y, event.width, event.height);
if (graph != null) {
final Transform tf = new Transform(gc.getDevice());
tf.translate(-offsetX, -offsetY);
tf.scale(scale, scale);
gc.setTransform(tf);
if (graphNeedsLayout) {
graph.layout();
graphNeedsLayout = false;
}
graph.getNodes().forEach(n -> n.paint(gc));
gc.setForeground(Display.getDefault().getSystemColor(SWT.COLOR_BLUE));
gc.setTransform(null);
tf.dispose();
if (hawkEye_active && hawkEye_target != null) {
final int w = Math.round(getSize().x / hawkEye_oldScale * scale);
final int h = Math.round(getSize().y / hawkEye_oldScale * scale);
gc.setBackground(Display.getDefault().getSystemColor(SWT.COLOR_BLUE));
gc.setAlpha(64);
gc.fillRectangle(
(int) hawkEye_target.x - w / 2,
(int) hawkEye_target.y - h / 2,
w, h);
gc.setAlpha(255);
}
}
}
示例4: draw
import org.eclipse.swt.graphics.GC; //导入方法依赖的package包/类
private void draw(GC gc,float x,float y,float h,DHTControlContact contact,int distance,float error) {
if(x == 0 && y == 0) return;
if(error > 1) error = 1;
int errDisplay = (int) (100 * error);
int x0 = scale.getX(x,y);
int y0 = scale.getY(x,y);
Image img = ImageRepository.getCountryFlag( contact.getTransportContact().getTransportAddress().getAddress(), true );
if ( img != null ){
Rectangle bounds = img.getBounds();
int old = gc.getAlpha();
gc.setAlpha( 150 );
gc.drawImage( img, x0-bounds.width/2, y0-bounds.height);
gc.setAlpha( old );
}
gc.fillRectangle(x0-1,y0-1,3,3);
//int elevation =(int) ( 200*h/(scale.maxY-scale.minY));
//gc.drawLine(x0,y0,x0,y0-elevation);
//String text = /*contact.getTransportContact().getAddress().getAddress().getHostAddress() + " (" + */distance + " ms \nerr:"+errDisplay+"%";
String text = /*contact.getTransportContact().getAddress().getAddress().getHostAddress() + " (" + */distance + " ms "+errDisplay+"%";
int lineReturn = text.indexOf("\n");
int xOffset = gc.getFontMetrics().getAverageCharWidth() * (lineReturn != -1 ? lineReturn:text.length()) / 2;
gc.drawText(text,x0-xOffset,y0,true);
currentPositions.add( new Object[]{ x0, y0, h, contact, x, y, distance });
}
示例5: setColour
import org.eclipse.swt.graphics.GC; //导入方法依赖的package包/类
private void
setColour(
GC gc )
{
if ( complete_time != -1 && draw_count > 1 ){
int age = (int)( SystemTime.getMonotonousTime() - complete_time );
gc.setAlpha( Math.max( 0, 200 - (255*age/FADE_OUT)));
gc.setForeground( ColorCache.getColor( gc.getDevice(), 0, 0, 0 ));
}else{
gc.setAlpha( 255 );
int type = activity.getType();
if ( type == DHTControlActivity.AT_EXTERNAL_GET ){
gc.setForeground( ColorCache.getColor( gc.getDevice(), 20, 200, 20 ));
}else if ( type == DHTControlActivity.AT_INTERNAL_GET ){
gc.setForeground( ColorCache.getColor( gc.getDevice(), 140, 160, 40 ));
}else if ( type == DHTControlActivity.AT_EXTERNAL_PUT ){
gc.setForeground( ColorCache.getColor( gc.getDevice(), 20, 20, 220 ));
}else{
gc.setForeground( ColorCache.getColor( gc.getDevice(), 40, 140, 160 ));
}
}
}
示例6: drawPie
import org.eclipse.swt.graphics.GC; //导入方法依赖的package包/类
public static void
drawPie(
GC gc,Image image, int x, int y,int width,int height,int percent, boolean draw_border )
{
Rectangle image_size = image.getBounds();
int width_pad = ( width - image_size.width )/2;
int height_pad = ( height - image_size.height )/2;
int angle = (percent * 360) / 100;
if(angle<4){
angle = 0; // workaround fillArc rendering bug
}
Region old_clipping = new Region();
gc.getClipping(old_clipping);
Path path_done = new Path(gc.getDevice());
path_done.addArc(x,y,width,height,90,-angle);
path_done.lineTo( x+width/2, y+height/2);
path_done.close();
gc.setClipping( path_done );
gc.drawImage(image, x+width_pad, y+height_pad+1);
Path path_undone = new Path(gc.getDevice());
path_undone.addArc(x,y,width,height,90-angle,angle-360);
path_undone.lineTo( x+width/2, y+height/2);
path_undone.close();
gc.setClipping( path_undone );
gc.setAlpha( 75 );
gc.drawImage(image, x+width_pad, y+height_pad+1);
gc.setAlpha( 255 );
gc.setClipping( old_clipping );
if ( draw_border ){
gc.setForeground(Colors.blue);
if ( percent == 100 ){
gc.drawOval(x , y , width-1, height-1);
}else{
if ( angle > 0 ){
gc.drawPath( path_done );
}
}
}
path_done.dispose();
path_undone.dispose();
old_clipping.dispose();
}