Java GC.setLineWidth方法代码示例

import org.eclipse.swt.graphics.GC; //导入方法依赖的package包/类
private void drawRow ( final Device device, final GC gc, final String label, final List<Double> data, final Rectangle bounds, final double minX, final double maxX )
{
    final Rectangle deviceBounds = device.getBounds ();

    gc.setLineWidth ( 1 );

    final int size = data.size ();

    final double diff = maxX - minX;

    Point lastPoint = null;
    for ( int i = 0; i < size; i++ )
    {
        // final Value v = data[i];
        final ValueInformation info = this.valueInformation.get ( i );

        if ( info.getQuality () > 0.75 )
        {
            final double posX = (double)bounds.width / (double)size * i;
            final double posY = data.get ( i ) / diff * bounds.height;

            final Point point = new Point ( (int)posX + bounds.x, (int)posY + bounds.y );

            if ( lastPoint != null )
            {
                gc.drawLine ( lastPoint.x, deviceBounds.height - lastPoint.y, point.x, deviceBounds.height - lastPoint.y );
                gc.drawLine ( point.x, deviceBounds.height - lastPoint.y, point.x, deviceBounds.height - point.y );
            }

            lastPoint = point;
        }
        else
        {
            lastPoint = null;
        }
    }
}
 

import org.eclipse.swt.graphics.GC; //导入方法依赖的package包/类
private static void saveEditorContentsAsImage(IEditorPart editorPart, GraphicalViewer viewer, String saveFilePath, int format) {

		ScalableFreeformRootEditPart rootEditPart = (ScalableFreeformRootEditPart) viewer.getEditPartRegistry().get(LayerManager.ID);
		IFigure rootFigure = ((LayerManager) rootEditPart).getLayer(LayerConstants.PRINTABLE_LAYERS);// rootEditPart.getFigure();
		Rectangle rootFigureBounds = rootFigure.getBounds();

		Control figureCanvas = viewer.getControl();
		GC figureCanvasGC = new GC(figureCanvas);

		Image img = new Image(null, rootFigureBounds.width, rootFigureBounds.height);
		GC imageGC = new GC(img);
		imageGC.setBackground(figureCanvasGC.getBackground());
		imageGC.setForeground(figureCanvasGC.getForeground());
		imageGC.setFont(figureCanvasGC.getFont());
		imageGC.setLineStyle(figureCanvasGC.getLineStyle());
		imageGC.setLineWidth(figureCanvasGC.getLineWidth());
		imageGC.setXORMode(figureCanvasGC.getXORMode());
		Graphics imgGraphics = new SWTGraphics(imageGC);

		rootFigure.paint(imgGraphics);

		ImageData[] imgData = new ImageData[1];
		imgData[0] = img.getImageData();

		ImageLoader imgLoader = new ImageLoader();
		imgLoader.data = imgData;
		imgLoader.save(saveFilePath, format);

		figureCanvasGC.dispose();
		imageGC.dispose();
		img.dispose();
	}
 

import org.eclipse.swt.graphics.GC; //导入方法依赖的package包/类
void paintElement(PaintEvent e) {
	GC g = e.gc;
	
	g.setBackground(this.getBackground());
	int width  = this.getBounds().width;
	int height = this.getBounds().height;
	
	// clear entire canvas where button will be painted
	g.fillRectangle(0, 0, width, height);

	// draw button background
	int selShift = 0;
	if(mouseIsOver && !isSelected){
		g.setBackground(this.meColorMouseOver);
	}else{
		g.setBackground(this.meColorUnselected);
	}
	if(isSelected){
		selShift = MEB_SIDE_SPACE-1;
		g.setBackground(this.meColorSelected);
	}
	g.fillRoundRectangle(-MEB_ARC_RADIUS,0,width-MEB_SIDE_SPACE+selShift+MEB_ARC_RADIUS, height-1, MEB_ARC_RADIUS, MEB_ARC_RADIUS);
	
	// draw button outline
	g.setLineWidth(1);
	if(mouseIsOver){ // || isFocused, but not currently used
		g.setForeground(this.meColorFocused);
	}else{
		g.setForeground(this.meColorOutline2);
	}
	g.drawRoundRectangle(-(MEB_ARC_RADIUS-1),1,width-MEB_SIDE_SPACE+selShift+(MEB_ARC_RADIUS-1), height-3, MEB_ARC_RADIUS-1, MEB_ARC_RADIUS-1);
	g.drawRoundRectangle(-(MEB_ARC_RADIUS-1),1,width-MEB_SIDE_SPACE+selShift+(MEB_ARC_RADIUS-1)-1, height-3, MEB_ARC_RADIUS-1, MEB_ARC_RADIUS-1);
	g.drawRoundRectangle(-(MEB_ARC_RADIUS-1),1,width-MEB_SIDE_SPACE+selShift+(MEB_ARC_RADIUS-1)-2, height-3, MEB_ARC_RADIUS-1, MEB_ARC_RADIUS-1);
	g.setForeground(this.meColorOutline);
	g.setLineWidth(1);
	g.drawRoundRectangle(-MEB_ARC_RADIUS,0,width-MEB_SIDE_SPACE+selShift+MEB_ARC_RADIUS, height-1, MEB_ARC_RADIUS, MEB_ARC_RADIUS);
	
	//
	// handle position of Text/Icon within MEButton
	//
	int usableHeight = height-4;
	// draw button text
	g.setForeground(this.meColorForeground);
	FontData fd = new FontData();
	fd.setHeight(8);
	g.setFont(new Font(this.getDisplay(), fd));
	Point textPt = g.textExtent(this.meLabel);
	switch(this.meDispOptions){
		case(MenuetElement.ME_ICON_ONLY): 	{
			g.drawImage(this.meIcon, (width-MEB_SIDE_SPACE-this.meIcon.getBounds().width-1)/2, (height-this.meIcon.getBounds().height)/2);
			break;
		}
		case(MenuetElement.ME_TEXT_ONLY): 	{
			g.drawText(this.meLabel, (width-textPt.x-MEB_SIDE_SPACE-1)/2, (height-textPt.y)/2);
			break;
		}
		case(MenuetElement.ME_TRY_ICON): 	{
			if(usableHeight >= (textPt.y+this.meIcon.getBounds().height+1)){
				g.drawImage(this.meIcon, (width-MEB_SIDE_SPACE-this.meIcon.getBounds().width-1)/2, (height-(this.meIcon.getBounds().height+1+textPt.y))/2);
				g.drawText(this.meLabel, (width-textPt.x-MEB_SIDE_SPACE-1)/2, (height-(this.meIcon.getBounds().height+1+textPt.y))/2 + this.meIcon.getBounds().height+1);
			}else{
				g.drawText(this.meLabel, (width-textPt.x-MEB_SIDE_SPACE-1)/2, (height-textPt.y)/2);
			}
			break;
		}
		case(MenuetElement.ME_TRY_TEXT):	{
			if(usableHeight >= (textPt.y+this.meIcon.getBounds().height+1)){
				g.drawImage(this.meIcon, (width-MEB_SIDE_SPACE-this.meIcon.getBounds().width-1)/2, (height-(this.meIcon.getBounds().height+1+textPt.y))/2);
				g.drawText(this.meLabel, (width-textPt.x-MEB_SIDE_SPACE-1)/2, (height-(this.meIcon.getBounds().height+1+textPt.y))/2 + this.meIcon.getBounds().height+1);
			}else{
				g.drawImage(this.meIcon, (width-MEB_SIDE_SPACE-this.meIcon.getBounds().width-1)/2, (height-this.meIcon.getBounds().height)/2);
			}
			break;
		}
		default:{
			g.drawText(this.meLabel, (width-textPt.x-MEB_SIDE_SPACE-1)/2, (height-textPt.y)/2);
			break;
		}		
	}		
}