// will only auto-redraw under certain conditions private void moveEndPts() { startBorderPts = startState.getBorderPts(); endBorderPts = endState.getBorderPts(); sPage = startState.getPage(); ePage = endState.getPage(); if (sPage != ePage && !stub) { int sOffset = drawArea.getOffset(sPage, startState, this, "start"); int eOffset = drawArea.getOffset(ePage, endState, this, "end"); int sBorderOffset = sOffset / 20; if (sBorderOffset < 0) sBorderOffset += 36; if (sBorderOffset > 35) sBorderOffset -= 36; int eBorderOffset = -eOffset / 20; if (eBorderOffset < -18) eBorderOffset += 36; if (eBorderOffset > 17) eBorderOffset -= 36; startPt = startBorderPts.get(0 + sBorderOffset); startCtrlPt = new Point((int) startPt.getX() + 20, (int) startPt.getY()); endPt = endBorderPts.get(18 + eBorderOffset); endCtrlPt = new Point((int) endPt.getX() - 20, (int) endPt.getY()); pageS = new Point(drawArea.getMaxW() - 50, (int) startPt.getY() + sOffset); pageSC = new Point(drawArea.getMaxW() - 70, (int) startPt.getY() + sOffset); pageE = new Point(50, (int) endPt.getY() + eOffset); pageEC = new Point(70, (int) endPt.getY() + eOffset); } else if (stub) { // TODO // System.out.println("in stub loop, moveendpts"); startPt = startBorderPts.get(startStateIndex); pageS.setLocation( new Point( (int) (startPt.getX() + len * Math.cos(angle)), (int) (startPt.getY() - len * Math.sin(angle)))); } else { // or if multiple states selected, dont need to recalculate if ((!recalcCheck() && !drawArea.getRedraw()) || (startState.getSelectStatus() != SelectOptions.NONE && endState.getSelectStatus() != SelectOptions.NONE)) { startStateIndex = tempStartIndex; endStateIndex = tempEndIndex; startPt = startBorderPts.get(startStateIndex); endPt = endBorderPts.get(endStateIndex); // if movement hasnt left the start quadrant, don't recalulate all // points startCtrlPt = new Point((int) startPt.getX() + sdx, (int) startPt.getY() + sdy); endCtrlPt = new Point((int) endPt.getX() + edx, (int) endPt.getY() + edy); } else setEndPts(); } }
@Override public void initTrans(StateObj start, StateObj end) { if (startState != start || endState != end) { startState = start; endState = end; setEndPts(); ready = true; } if (sPage != ePage) drawArea.pageConnUpdate(startState, endState); }
@Override public void paintComponent(Graphics g) { // check if something needs to be painted at all if (ready) { sPage = startState.getPage(); myPage = sPage; ePage = endState.getPage(); } // check if anything needs to be drawn if (ready && (sPage == currPage || ePage == currPage)) { Graphics2D g2D = (Graphics2D) g; g2D.setColor(color); // draw arrow head for non-stub transitions if (currPage == ePage && !stub) { // find angle between end point and end control point int dx = (int) endCtrlPt.getX() - (int) endPt.getX(); int dy = (int) endCtrlPt.getY() - (int) endPt.getY(); double alpha = 0; if (dx == 0) { if (dy <= 0) alpha = Math.PI / 2; else alpha = 3 * Math.PI / 2; } else if (dx > 0 && dy > 0) alpha = 2 * Math.PI - Math.atan((double) dy / dx); else if (dx > 0 && dy <= 0) { if (dy == 0) alpha = 0; else alpha = -Math.atan((double) dy / (dx)); } else if (dx < 0) alpha = Math.PI - Math.atan((double) dy / dx); double adj = Math.PI / 6; int[] xP = { (int) endPt.getX(), (int) endPt.getX() + (int) (13 * Math.cos(alpha + adj)), (int) endPt.getX() + (int) (13 * Math.cos(alpha - adj)) }; int[] yP = { (int) endPt.getY(), (int) endPt.getY() - (int) (13 * Math.sin(alpha + adj)), (int) endPt.getY() - (int) (13 * Math.sin(alpha - adj)) }; g2D.drawPolygon(xP, yP, 3); g2D.fillPolygon(xP, yP, 3); } // draw stub if (currPage == sPage && stub) { g2D.drawLine( (int) startPt.getX(), (int) startPt.getY(), (int) pageS.getX(), (int) pageS.getY()); int x = (int) pageS.getX(); int y = (int) pageS.getY(); double cos = Math.cos(angle); double sin = Math.sin(angle); g2D.drawLine( x - (int) Math.round(6 * sin + 7 * cos), y - (int) Math.round(6 * cos - 7 * sin), x, y); g2D.drawLine( x, y, x + (int) Math.round(6 * sin - 7 * cos), y + (int) Math.round(6 * cos + 7 * sin)); FontMetrics fm = g2D.getFontMetrics(); int width = fm.stringWidth(endState.getName()); int height = fm.getHeight(); g2D.drawString( endState.getName(), (int) (pageS.getX() + (12 + width / 2) * Math.cos(angle) - width / 2), (int) (pageS.getY() - 12 * Math.sin(angle) + height / 3)); // draw control points if needed if (selectStatus != SelectOptions.NONE) { g2D.setColor(Color.red); g2D.fillRect((int) startPt.getX() - 3, (int) startPt.getY() - 3, 7, 7); g2D.fillRect((int) pageS.getX() - 3, (int) pageS.getY() - 3, 7, 7); g2D.setColor(color); } } // draw normal transition if (sPage == ePage && !stub) { g2D.draw(curve); // draw control points if (selectStatus != SelectOptions.NONE) { g2D.setColor(Color.red); g2D.fillRect((int) startPt.getX() - 3, (int) startPt.getY() - 3, 7, 7); g2D.fillRect((int) endPt.getX() - 3, (int) endPt.getY() - 3, 7, 7); g2D.fillRect((int) startCtrlPt.getX() - 3, (int) startCtrlPt.getY() - 3, 7, 7); g2D.fillRect((int) endCtrlPt.getX() - 3, (int) endCtrlPt.getY() - 3, 7, 7); g2D.drawLine( (int) startPt.getX(), (int) startPt.getY(), (int) startCtrlPt.getX(), (int) startCtrlPt.getY()); g2D.drawLine( (int) endPt.getX(), (int) endPt.getY(), (int) endCtrlPt.getX(), (int) endCtrlPt.getY()); g2D.setColor(color); } } // draw page connector if (sPage != ePage && !stub) { // if one start page if (sPage == currPage) { curve.setCurve( startPt.getX(), startPt.getY(), startCtrlPt.getX(), startCtrlPt.getY(), pageSC.getX(), pageSC.getY(), pageS.getX(), pageS.getY()); int x = (int) pageS.getX(); int y = (int) pageS.getY(); g2D.drawLine(x, y, x, y + 10); g2D.drawLine(x, y + 10, x + 30, y + 10); g2D.drawLine(x + 30, y + 10, x + 40, y); g2D.drawLine(x + 40, y, x + 30, y - 10); g2D.drawLine(x + 30, y - 10, x, y - 10); g2D.drawLine(x, y - 10, x, y); FontMetrics fm = g2D.getFontMetrics(); String pageName = drawArea.getPageName(endState.getPage()); String text = endState.getName() + " (" + pageName + ")"; int tW = fm.stringWidth(text); if (tW > 40) g2D.drawString(text, x + 40 - tW, y + 25); else g2D.drawString(text, x, y + 25); // draw control points if needed if (selectStatus != SelectOptions.NONE) { g2D.setColor(Color.red); g2D.fillRect((int) startPt.getX() - 3, (int) startPt.getY() - 3, 7, 7); g2D.fillRect((int) pageS.getX() - 3, (int) pageS.getY() - 3, 7, 7); g2D.fillRect((int) startCtrlPt.getX() - 3, (int) startCtrlPt.getY() - 3, 7, 7); g2D.fillRect((int) pageSC.getX() - 3, (int) pageSC.getY() - 3, 7, 7); g2D.drawLine( (int) startPt.getX(), (int) startPt.getY(), (int) startCtrlPt.getX(), (int) startCtrlPt.getY()); g2D.drawLine( (int) pageS.getX(), (int) pageS.getY(), (int) pageSC.getX(), (int) pageSC.getY()); } g2D.setColor(color); g2D.draw(curve); } // in on end page else if (ePage == currPage) { curve.setCurve( pageE.getX(), pageE.getY(), pageEC.getX(), pageEC.getY(), endCtrlPt.getX(), endCtrlPt.getY(), endPt.getX(), endPt.getY()); int x = (int) pageE.getX() - 40; int y = (int) pageE.getY(); g2D.drawLine(x, y, x, y + 10); g2D.drawLine(x, y + 10, x + 30, y + 10); g2D.drawLine(x + 30, y + 10, x + 40, y); g2D.drawLine(x + 40, y, x + 30, y - 10); g2D.drawLine(x + 30, y - 10, x, y - 10); g2D.drawLine(x, y - 10, x, y); g2D.drawString( startState.getName() + " (" + drawArea.getPageName(startState.getPage()) + ")", x, y + 25); // control points if needed if (selectStatus != SelectOptions.NONE) { g2D.setColor(Color.red); g2D.fillRect((int) endPt.getX() - 3, (int) endPt.getY() - 3, 7, 7); g2D.fillRect((int) pageE.getX() - 3, (int) pageE.getY() - 3, 7, 7); g2D.fillRect((int) endCtrlPt.getX() - 3, (int) endCtrlPt.getY() - 3, 7, 7); g2D.fillRect((int) pageEC.getX() - 3, (int) pageEC.getY() - 3, 7, 7); g2D.drawLine( (int) endPt.getX(), (int) endPt.getY(), (int) endCtrlPt.getX(), (int) endCtrlPt.getY()); g2D.drawLine( (int) pageE.getX(), (int) pageE.getY(), (int) pageEC.getX(), (int) pageEC.getY()); } g2D.setColor(color); g2D.draw(curve); } } } }
public void setEndPts() { startBorderPts = startState.getBorderPts(); endBorderPts = endState.getBorderPts(); sPage = startState.getPage(); ePage = endState.getPage(); // TODO page connector stacking if (sPage != ePage && !stub) { int sOffset = drawArea.getOffset(sPage, startState, this, "start"); int eOffset = drawArea.getOffset(ePage, endState, this, "end"); int sBorderOffset = sOffset / 20; if (sBorderOffset < 0) sBorderOffset += 36; if (sBorderOffset > 35) sBorderOffset -= 36; int eBorderOffset = -eOffset / 20; if (eBorderOffset < -18) eBorderOffset += 36; if (eBorderOffset > 17) eBorderOffset -= 36; startPt = startBorderPts.get(0 + sBorderOffset); startCtrlPt = new Point((int) startPt.getX() + 20, (int) startPt.getY()); endPt = endBorderPts.get(18 + eBorderOffset); endCtrlPt = new Point((int) endPt.getX() - 20, (int) endPt.getY()); pageS = new Point(drawArea.getMaxW() - 50, (int) startPt.getY() + sOffset); pageSC = new Point(drawArea.getMaxW() - 70, (int) startPt.getY() + sOffset); pageE = new Point(50, (int) endPt.getY() + eOffset); pageEC = new Point(70, (int) endPt.getY() + eOffset); curve = new CubicCurve2D.Double(); } else if (stub) { // TODO // System.out.println("in stub loop, setendpts"); startPt = startBorderPts.get(0); startStateIndex = 0; pageS = new Point((int) startPt.getX() + 60, (int) startPt.getY()); len = 60; angle = 0; } else { Point startCoords = startState.getRealCenter(myPage); Point endCoords = endState.getRealCenter(myPage); double temp; double max = 1000000; for (int i = 0; i < 36; i++) { temp = startCoords.distanceSq(endBorderPts.get(i)); if (temp < max) { endStateIndex = i; max = temp; } } max = 1000000; for (int i = 0; i < 36; i++) { temp = endCoords.distanceSq(startBorderPts.get(i)); if (temp < max) { startStateIndex = i; max = temp; } } // try to prevent overlapping if (startCoords.getX() < endCoords.getX()) { if (startCoords.getY() < endCoords.getY()) { } else { } } else { if (startCoords.getY() < endCoords.getY()) { } else { } } startStateIndex -= 1; if (startStateIndex == -1) startStateIndex = 35; endStateIndex += 1; if (endStateIndex == 36) endStateIndex = 0; startPt = startBorderPts.get(startStateIndex); endPt = endBorderPts.get(endStateIndex); // SELECTION OF CONTROL POINTS // distances between states int dx = (int) startState.getRealCenter(myPage).getX() - (int) endState.getRealCenter(myPage).getX(); int dy = (int) startState.getRealCenter(myPage).getY() - (int) endState.getRealCenter(myPage).getY(); // scaling for distance of control point from start or end point int dxs = (int) (endPt.getX() - startPt.getX()) / 3; int dys = (int) (endPt.getY() - startPt.getY()) / 3; if (dxs < 0) dxs = -dxs; if (dys < 0) dys = -dys; // find angle between states double theta = 0; if (dx == 0) { if (dy <= 0) theta = Math.PI / 2; else theta = 3 * Math.PI / 2; } else if (dx > 0 && dy > 0) theta = 2 * Math.PI - Math.atan((double) dy / dx); else if (dx > 0 && dy <= 0) { if (dy == 0) theta = 0; else theta = -Math.atan((double) dy / (dx)); } else if (dx < 0) theta = Math.PI - Math.atan((double) dy / dx); // determine angle away from start point for start control point double adj = Math.PI / 6; double angleStart = 0; if (dx >= 0 && dy >= 0) angleStart = -Math.PI + theta + adj; // + else if (dx >= 0 && dy < 0) angleStart = Math.PI + theta + adj; // + else if (dx < 0 && dy >= 0) angleStart = -Math.PI + theta + adj; else if (dx < 0 && dy < 0) angleStart = Math.PI + theta + adj; // determine angle away from end point for end control point double angleEnd = 0; if (dx >= 0) angleEnd = theta - adj; else if (dx < 0) angleEnd = theta - adj; // create control point startCtrlPt = new Point( (int) (startPt.getX() + (Math.cos(angleStart) * dxs)), (int) (startPt.getY() - (Math.sin(angleStart) * dys))); endCtrlPt = new Point( (int) (endPt.getX() + (Math.cos(angleEnd) * dxs)), (int) (endPt.getY() - (Math.sin(angleEnd) * dys))); curve = new CubicCurve2D.Double( startPt.getX(), startPt.getY(), startCtrlPt.getX(), startCtrlPt.getY(), endCtrlPt.getX(), endCtrlPt.getY(), endPt.getX(), endPt.getY()); } }