001package votorola.s.gwt.wic; // Copyright 2012, Michael Allan. Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Votorola Software"), to deal in the Votorola Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicence, and/or sell copies of the Votorola Software, and to permit persons to whom the Votorola Software is furnished to do so, subject to the following conditions: The preceding copyright notice and this permission notice shall be included in all copies or substantial portions of the Votorola Software. THE VOTOROLA SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE VOTOROLA SOFTWARE OR THE USE OR OTHER DEALINGS IN THE VOTOROLA SOFTWARE. 002 003import org.vectomatic.dom.svg.*; 004import votorola.g.web.gwt.svg.*; 005 006 007/** A component of the bridge/stage {@linkplain DIn connector overlay} that visually ties 008 * the other (non-anchor) drafter's link (tLink) at top left of the bridge scene to the 009 * {@linkplain AlterBracket alter bracket}.<pre> 010 * 011 * alter | | 012 * bracket +------+------+ 013 * | 014 * tLink +--------------------------------+</pre> 015 */ 016final class AlterLine extends Connector 017{ 018 019 020 /** Creates an AlterLine. 021 */ 022 AlterLine() 023 { 024 super( "tLink" ); // invisible pending AlterBracket.Visibilizer 025 addClassNameBaseVal( "AlterLine" ); 026 } 027 028 029 030 // ------------------------------------------------------------------------------------ 031 032 033 /** Redraws this line to connect with the bracket, or sets it invisible if the bracket 034 * is too close to the link. 035 */ 036 void repaint( final AlterBracket bracket ) 037 { 038 final int linkHeight = link().getOffsetHeight(); 039 final int linkRight = link().getAbsoluteRight(); 040 final int x0 = linkRight + /*margin*/(int)(linkHeight * 0.2f); 041 final OMSVGPathSegMovetoAbs p0 = bracket.p0(); 042 final int midX = (int)( p0.getX() + bracket.length() / 2 ); 043 if( isLongEnough( x0, midX, linkHeight )) setVisible( true ); 044 else 045 { 046 setVisible( false ); 047 return; 048 } 049 050 // p0 + + - 051 // margin | bracket | | depth 052 // | +--------+---------+ - 053 // |-| | 2 054 // | 055 // link +--------------------------------+ 1 (midX,y) 056 // 0 057 058 final int y = link().getAbsoluteTop() + linkSink(linkHeight); 059 final OMSVGPathSegList sL = getPathSegList(); 060 PathSeg.movetoAbs( sL, 0, x0, y ); 061 PathSeg.lineToAbs( sL, 1, midX, y ); 062 PathSeg.lineToAbs( sL, 2, midX, p0.getY() + bracket.depth() ); 063 } 064 065 066}