void drawRoiLabel(Graphics g, int index, Roi roi) { Rectangle r = roi.getBounds(); int x = screenX(r.x); int y = screenY(r.y); double mag = getMagnification(); int width = (int) (r.width * mag); int height = (int) (r.height * mag); int size = width > 40 && height > 40 ? 12 : 9; if (font != null) { g.setFont(font); size = font.getSize(); } else if (size == 12) g.setFont(largeFont); else g.setFont(smallFont); boolean drawingList = index >= LIST_OFFSET; if (drawingList) index -= LIST_OFFSET; String label = "" + (index + 1); if (drawNames && roi.getName() != null) label = roi.getName(); FontMetrics metrics = g.getFontMetrics(); int w = metrics.stringWidth(label); x = x + width / 2 - w / 2; y = y + height / 2 + Math.max(size / 2, 6); int h = metrics.getAscent() + metrics.getDescent(); if (bgColor != null) { g.setColor(bgColor); g.fillRoundRect(x - 1, y - h + 2, w + 1, h - 3, 5, 5); } if (!drawingList && labelRects != null && index < labelRects.length) labelRects[index] = new Rectangle(x - 1, y - h + 2, w + 1, h); g.setColor(labelColor); g.drawString(label, x, y - 2); g.setColor(defaultColor); }
void showFrameRate(Graphics g) { frames++; if (System.currentTimeMillis() > firstFrame + 1000) { firstFrame = System.currentTimeMillis(); fps = frames; frames = 0; } g.setColor(Color.white); g.fillRect(10, 12, 50, 15); g.setColor(Color.black); g.drawString((int) (fps + 0.5) + " fps", 10, 25); }
void drawRoi(Graphics g, Roi roi, int index) { int type = roi.getType(); ImagePlus imp2 = roi.getImage(); roi.setImage(imp); Color saveColor = roi.getStrokeColor(); if (saveColor == null) roi.setStrokeColor(defaultColor); if (roi instanceof TextRoi) ((TextRoi) roi).drawText(g); else roi.drawOverlay(g); roi.setStrokeColor(saveColor); if (index >= 0) { if (roi == currentRoi) g.setColor(Roi.getColor()); else g.setColor(defaultColor); drawRoiLabel(g, index, roi); } if (imp2 != null) roi.setImage(imp2); else roi.setImage(null); }
// Use double buffer to reduce flicker when drawing complex ROIs. // Author: Erik Meijering void paintDoubleBuffered(Graphics g) { final int srcRectWidthMag = (int) (srcRect.width * magnification); final int srcRectHeightMag = (int) (srcRect.height * magnification); if (offScreenImage == null || offScreenWidth != srcRectWidthMag || offScreenHeight != srcRectHeightMag) { offScreenImage = createImage(srcRectWidthMag, srcRectHeightMag); offScreenWidth = srcRectWidthMag; offScreenHeight = srcRectHeightMag; } Roi roi = imp.getRoi(); try { if (imageUpdated) { imageUpdated = false; imp.updateImage(); } Graphics offScreenGraphics = offScreenImage.getGraphics(); Java2.setBilinearInterpolation(offScreenGraphics, Prefs.interpolateScaledImages); Image img = imp.getImage(); if (img != null) offScreenGraphics.drawImage( img, 0, 0, srcRectWidthMag, srcRectHeightMag, srcRect.x, srcRect.y, srcRect.x + srcRect.width, srcRect.y + srcRect.height, null); if (overlay != null) drawOverlay(offScreenGraphics); if (showAllROIs) drawAllROIs(offScreenGraphics); if (roi != null) drawRoi(roi, offScreenGraphics); if (srcRect.width < imageWidth || srcRect.height < imageHeight) drawZoomIndicator(offScreenGraphics); if (IJ.debugMode) showFrameRate(offScreenGraphics); g.drawImage(offScreenImage, 0, 0, null); } catch (OutOfMemoryError e) { IJ.outOfMemory("Paint"); } }
void drawZoomIndicator(Graphics g) { int x1 = 10; int y1 = 10; double aspectRatio = (double) imageHeight / imageWidth; int w1 = 64; if (aspectRatio > 1.0) w1 = (int) (w1 / aspectRatio); int h1 = (int) (w1 * aspectRatio); if (w1 < 4) w1 = 4; if (h1 < 4) h1 = 4; int w2 = (int) (w1 * ((double) srcRect.width / imageWidth)); int h2 = (int) (h1 * ((double) srcRect.height / imageHeight)); if (w2 < 1) w2 = 1; if (h2 < 1) h2 = 1; int x2 = (int) (w1 * ((double) srcRect.x / imageWidth)); int y2 = (int) (h1 * ((double) srcRect.y / imageHeight)); if (zoomIndicatorColor == null) zoomIndicatorColor = new Color(128, 128, 255); g.setColor(zoomIndicatorColor); ((Graphics2D) g).setStroke(Roi.onePixelWide); g.drawRect(x1, y1, w1, h1); if (w2 * h2 <= 200 || w2 < 10 || h2 < 10) g.fillRect(x1 + x2, y1 + y2, w2, h2); else g.drawRect(x1 + x2, y1 + y2, w2, h2); }
void initGraphics(Graphics g, Color textColor, Color defaultColor) { if (smallFont == null) { smallFont = new Font("SansSerif", Font.PLAIN, 9); largeFont = new Font("SansSerif", Font.PLAIN, 12); } if (textColor != null) { labelColor = textColor; if (overlay != null && overlay.getDrawBackgrounds()) bgColor = new Color( 255 - labelColor.getRed(), 255 - labelColor.getGreen(), 255 - labelColor.getBlue()); else bgColor = null; } else { int red = defaultColor.getRed(); int green = defaultColor.getGreen(); int blue = defaultColor.getBlue(); if ((red + green + blue) / 3 < 128) labelColor = Color.white; else labelColor = Color.black; bgColor = defaultColor; } this.defaultColor = defaultColor; g.setColor(defaultColor); }
public void paint(Graphics g) { Roi roi = imp.getRoi(); if (roi != null || showAllROIs || overlay != null) { if (roi != null) roi.updatePaste(); if (!IJ.isMacOSX() && imageWidth != 0) { paintDoubleBuffered(g); return; } } try { if (imageUpdated) { imageUpdated = false; imp.updateImage(); } Java2.setBilinearInterpolation(g, Prefs.interpolateScaledImages); Image img = imp.getImage(); if (img != null) g.drawImage( img, 0, 0, (int) (srcRect.width * magnification), (int) (srcRect.height * magnification), srcRect.x, srcRect.y, srcRect.x + srcRect.width, srcRect.y + srcRect.height, null); if (overlay != null) drawOverlay(g); if (showAllROIs) drawAllROIs(g); if (roi != null) drawRoi(roi, g); if (srcRect.width < imageWidth || srcRect.height < imageHeight) drawZoomIndicator(g); if (IJ.debugMode) showFrameRate(g); } catch (OutOfMemoryError e) { IJ.outOfMemory("Paint"); } }