speedscaleshell.java

JMule是一个基于Java开发

					return;
				}
				Point mousePos = display.getCursorLocation();
				if (e.y > HEIGHT - SCALER_HEIGHT) {
					bMouseDown = true;
					setValue(getValueFromMousePos(e.x));
				}
			}

			public void mouseDoubleClick(MouseEvent e) {
			}

		});

		composite.addPaintListener(new PaintListener() {
			public void paintControl(PaintEvent e) {
				int x = (int)(WIDTH_NO_PADDING * value / maxValue);
				if (x < 0) {
					x = 0;
				} else if (x > WIDTH_NO_PADDING) {
					x = WIDTH_NO_PADDING;
				}
				int startX = (int)(WIDTH_NO_PADDING * startValue / maxValue);
				if (startX < 0) {
					startX = 0;
				} else if (startX > WIDTH_NO_PADDING) {
					startX = WIDTH_NO_PADDING;
				}
				int baseLinePos = getBaselinePos();

				try {
					e.gc.setAdvanced(true);
					e.gc.setAntialias(SWT.ON);
				} catch (Exception ex) {
					// aw
				}

				e.gc.setForeground(display.getSystemColor(SWT.COLOR_WIDGET_NORMAL_SHADOW));
				// left
				e.gc.drawLine(PADDING_X0, baseLinePos - 6, PADDING_X0, baseLinePos + 6);
				// right
				e.gc.drawLine(PADDING_X0 + WIDTH_NO_PADDING, baseLinePos - 6,
						PADDING_X0 + WIDTH_NO_PADDING, baseLinePos + 6);
				// baseline
				e.gc.drawLine(PADDING_X0, baseLinePos, PADDING_X0 + WIDTH_NO_PADDING,
						baseLinePos);

				e.gc.setForeground(display.getSystemColor(SWT.COLOR_WIDGET_FOREGROUND));
				e.gc.setBackground(display.getSystemColor(SWT.COLOR_WIDGET_FOREGROUND));
				// start value marker
				e.gc.drawLine(PADDING_X0 + startX, baseLinePos - 5,
						PADDING_X0 + startX, baseLinePos + 5);
				// current value marker
				e.gc.fillRoundRectangle(PADDING_X0 + x - 2, baseLinePos - 5, 5, 10, 10,
						10);

				// Current Value Text
				e.gc.setForeground(display.getSystemColor(SWT.COLOR_INFO_FOREGROUND));
				e.gc.setBackground(display.getSystemColor(SWT.COLOR_INFO_BACKGROUND));

				e.gc.fillRectangle(0, 0, WIDTH, TEXT_HEIGHT);

				GCStringPrinter.printString(e.gc,title+"\n"+ _getStringValue(), new Rectangle(0,
						0, WIDTH, HEIGHT), true, false, SWT.CENTER | SWT.TOP | SWT.WRAP);

				e.gc.drawLine(0, TEXT_HEIGHT - 1, WIDTH, TEXT_HEIGHT - 1);

				// options list
				int y = TEXT_HEIGHT;
				Point mousePos = composite.toControl(display.getCursorLocation());
				for (Iterator iter = mapOptions.keySet().iterator(); iter.hasNext();) {
					long value = (Long) iter.next();
					String text = (String) mapOptions.get(value);

					Rectangle area = new Rectangle(0, y, WIDTH, OPTION_HEIGHT);
					Color bg;
					if (area.contains(mousePos)) {
						bg = display.getSystemColor(SWT.COLOR_LIST_SELECTION);
						e.gc.setBackground(bg);
						e.gc.setForeground(display.getSystemColor(SWT.COLOR_LIST_SELECTION_TEXT));
						e.gc.fillRectangle(area);
					} else {
						bg = display.getSystemColor(SWT.COLOR_LIST_BACKGROUND);
						e.gc.setBackground(bg);
						e.gc.setForeground(display.getSystemColor(SWT.COLOR_LIST_FOREGROUND));
					}

					int ovalSize = OPTION_HEIGHT - 6;
					if (getValue() == value) {
						Color saveColor = e.gc.getBackground();
						e.gc.setBackground(e.gc.getForeground());
						e.gc.fillOval(4, y + 5, ovalSize - 3, ovalSize - 3);
						e.gc.setBackground(saveColor);
					}
					if (JMConstants.isLinux) {
						// Hack: on linux, drawing oval seems to draw a line from last pos
						// to start of oval.. drawing a point (anywhere) seems to clear the
						// path
						Color saveColor = e.gc.getForeground();
						e.gc.setForeground(bg);
						e.gc.drawPoint(2, y + 3);
						e.gc.setForeground(saveColor);
					}
					e.gc.drawOval(2, y + 3, ovalSize, ovalSize);

					GCStringPrinter.printString(e.gc, text, new Rectangle(OPTION_HEIGHT,
							y, WIDTH - OPTION_HEIGHT, OPTION_HEIGHT), true, false, SWT.LEFT);
					y += OPTION_HEIGHT;
				}

				// typed value
				if (sValue.length() > 0) {
					Point extent = e.gc.textExtent(sValue);
					if (extent.x > WIDTH - 10) {
						extent.x = WIDTH - 10;
					}
					Rectangle rect = new Rectangle(WIDTH - 8 - extent.x, 14,
							extent.x + 5, extent.y + 4 + 14 > TEXT_HEIGHT ? TEXT_HEIGHT - 15
									: extent.y + 4);
					e.gc.setBackground(display.getSystemColor(SWT.COLOR_INFO_BACKGROUND));
					e.gc.fillRectangle(rect);

					try {
						e.gc.setAlpha(TYPED_TEXT_ALPHA);
					} catch (Exception ex) {
					}
					e.gc.setBackground(display.getSystemColor(SWT.COLOR_LIST_BACKGROUND));
					e.gc.setForeground(display.getSystemColor(SWT.COLOR_LIST_FOREGROUND));
					//e.gc.drawRectangle(rect);

					GCStringPrinter.printString(e.gc, sValue , new Rectangle(rect.x + 2,
							rect.y + 2, WIDTH - 5, OPTION_HEIGHT), true, false, SWT.LEFT
							| SWT.BOTTOM);
				}
			}
		});

		Point location = display.getCursorLocation();

		location.y -= getBaselinePos();
		int x = (int) (WIDTH_NO_PADDING * (value > maxValue ? 1 : (double) value
				/ maxValue));
		location.x -= PADDING_X0 + x;

		Rectangle bounds = new Rectangle(location.x, location.y, WIDTH, HEIGHT);
		Monitor mouseMonitor = shell.getMonitor();
		Monitor[] monitors = display.getMonitors();
		for (int i = 0; i < monitors.length; i++) {
			Monitor monitor = monitors[i];
			if (monitor.getBounds().contains(location)) {
				mouseMonitor = monitor;
				break;
			}
		}
		Rectangle monitorBounds = mouseMonitor.getBounds();
		Rectangle intersection = monitorBounds.intersection(bounds);
		if (intersection.width != bounds.width) {
			bounds.x = monitorBounds.x + monitorBounds.width - WIDTH;
			bounds.width = WIDTH;
		}
		if (intersection.height != bounds.height) {
			bounds.y = monitorBounds.y + monitorBounds.height - HEIGHT;
			bounds.height = HEIGHT;
		}

		shell.setBounds(bounds);
		if (!bounds.contains(firstMousePos)) {
			// should never happen, which means it probably will, so handle it badly
			shell.setLocation(firstMousePos.x - (bounds.width / 2), firstMousePos.y
					- bounds.height + 2);
		}

		shell.open();
		// must be after, for OSX
		composite.setFocus();

		try {
			while (!shell.isDisposed()) {
				if (!display.readAndDispatch()) {
					display.sleep();
				}
			}
		} catch (Throwable t) {
			
		}


		return !cancelled;
	}

	/**
	 * @param x
	 * @return
	 *
	 * @since 3.0.1.7
	 */
	protected long getValueFromMousePos(int x) {
		int x0 = x + 1;
		if (x < PADDING_X0) {
			x0 = PADDING_X0;
		} else if (x > PADDING_X0 + WIDTH_NO_PADDING) {
			x0 = PADDING_X0 + WIDTH_NO_PADDING;
		}

		return (x0 - PADDING_X0) * maxValue / WIDTH_NO_PADDING;
	}

	public long getValue() {
		return value;
	}

	public boolean isCancelled() {
		return cancelled;
	}

	public void setCancelled(boolean cancelled) {
		this.cancelled = cancelled;
	}

	public long getMinValue() {
		return minValue;
	}

	public void setMinValue(long minValue) {
		this.minValue = minValue;
	}

	public long getMaxValue() {
		return maxValue;
	}

	public void setMaxValue(long maxValue) {
		this.maxValue = maxValue;
	}

	public void setValue(long value) {
		//System.out.println("sv " + value + ";" + Debug.getCompressedStackTrace());
		if (value > maxValue) {
			value = maxValue;
		} else if (value < minValue) {
			value = minValue;
		}
		this.value = value;
		if (composite != null && !composite.isDisposed()) {
			composite.redraw();
		}
	}

	public String _getStringValue() {
		String name = (String) mapOptions.get(new Long(value));
		return getStringValue(value, name);
	}

	public String getStringValue(long value, String sValue) {
		if (sValue != null) {
			return sValue + "";
		}
		return SpeedFormatter.formatByteCountToKiBEtcPerSec(value * 1024,true);
	}

	private int getBaselinePos() {
		return HEIGHT - (SCALER_HEIGHT / 2);
	}

	public void addOption(String id, long value) {
		mapOptions.put(new Long(value), id);
		HEIGHT += OPTION_HEIGHT;
	}

	public long getMaxTextValue() {
		return maxTextValue;
	}

	public void setMaxTextValue(long maxTextValue) {
		this.maxTextValue = maxTextValue;
	}

	public boolean wasMenuChosen() {
		return menuChosen;
	}

	public void setMenuChosen(boolean menuChosen) {
		this.menuChosen = menuChosen;
	}
	
}