1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/xlinkobj.cpp Tue Jun 13 13:54:53 2006 +0000
1.3 @@ -0,0 +1,302 @@
1.4 +#include "xlinkobj.h"
1.5 +#include "branchobj.h"
1.6 +#include "mapeditor.h"
1.7 +//Added by qt3to4:
1.8 +#include <Q3PointArray>
1.9 +
1.10 +
1.11 +/////////////////////////////////////////////////////////////////
1.12 +// XLinkObj
1.13 +/////////////////////////////////////////////////////////////////
1.14 +
1.15 +int XLinkObj::arrowSize=10; // make instances
1.16 +
1.17 +XLinkObj::XLinkObj ():MapObj()
1.18 +{
1.19 + // cout << "Const XLinkObj ()\n";
1.20 + init();
1.21 +}
1.22 +
1.23 +XLinkObj::XLinkObj (Q3Canvas* c):MapObj(c)
1.24 +{
1.25 + // cout << "Const XLinkObj (c) called from MapCenterObj (c)\n";
1.26 + init();
1.27 +}
1.28 +
1.29 +
1.30 +XLinkObj::~XLinkObj ()
1.31 +{
1.32 + // cout << "Destr XLinkObj\n";
1.33 + if (xLinkState!=undefinedXLink)
1.34 + deactivate();
1.35 + delete (line);
1.36 + delete (poly);
1.37 +}
1.38 +
1.39 +
1.40 +void XLinkObj::init ()
1.41 +{
1.42 + beginBranch=NULL;
1.43 + endBranch=NULL;
1.44 + visBranch=NULL;
1.45 + xLinkState=undefinedXLink;
1.46 +
1.47 + color=QColor (180,180,180);
1.48 + line=new Q3CanvasLine (canvas);
1.49 + width=1;
1.50 + line->setPen (QPen(color, width));
1.51 + line->setZ (Z_XLINK);
1.52 +
1.53 + poly=new Q3CanvasPolygon (canvas);
1.54 + poly->setBrush( color );
1.55 + poly->setZ (Z_XLINK);
1.56 +
1.57 + setVisibility (false);
1.58 +}
1.59 +
1.60 +void XLinkObj::copy (XLinkObj* other)
1.61 +{
1.62 + // TODO copy not used yet
1.63 + MapObj::copy (other);
1.64 + setVisibility (other->visible);
1.65 + beginBranch=other->beginBranch;
1.66 + endBranch=other->endBranch;
1.67 + width=other->width;
1.68 +}
1.69 +
1.70 +void XLinkObj::setBegin (BranchObj *bo)
1.71 +{
1.72 + if (bo)
1.73 + {
1.74 + xLinkState=initXLink;
1.75 + beginBranch=bo;
1.76 + beginPos=beginBranch->getChildPos();
1.77 + }
1.78 +}
1.79 +
1.80 +BranchObj* XLinkObj::getBegin ()
1.81 +{
1.82 + return beginBranch;
1.83 +}
1.84 +
1.85 +void XLinkObj::setEnd (BranchObj *bo)
1.86 +{
1.87 + if (bo)
1.88 + {
1.89 + xLinkState=initXLink;
1.90 + endBranch=bo;
1.91 + endPos=endBranch->getChildPos();
1.92 + }
1.93 +}
1.94 +
1.95 +BranchObj* XLinkObj::getEnd()
1.96 +{
1.97 + return endBranch;
1.98 +}
1.99 +
1.100 +void XLinkObj::setWidth (int w)
1.101 +{
1.102 + width=w;
1.103 + setColor (color);
1.104 +}
1.105 +
1.106 +int XLinkObj::getWidth()
1.107 +{
1.108 + return width;
1.109 +}
1.110 +
1.111 +void XLinkObj::setColor(QColor c)
1.112 +{
1.113 + color=c;
1.114 + line->setPen (QPen(color, width));
1.115 + poly->setBrush( color );
1.116 +}
1.117 +
1.118 +QColor XLinkObj::getColor()
1.119 +{
1.120 + return color;
1.121 +}
1.122 +
1.123 +void XLinkObj::setEnd (QPoint p)
1.124 +{
1.125 + endPos=p;
1.126 +}
1.127 +
1.128 +bool XLinkObj::activate ()
1.129 +{
1.130 + if (beginBranch && endBranch)
1.131 + {
1.132 + if (beginBranch==endBranch) return false;
1.133 + xLinkState=activeXLink;
1.134 + beginBranch->addXLink (this);
1.135 + endBranch->addXLink (this);
1.136 + setVisibility ();
1.137 + return true;
1.138 + } else
1.139 + return false;
1.140 +}
1.141 +
1.142 +void XLinkObj::deactivate ()
1.143 +{
1.144 + if (beginBranch)
1.145 + beginBranch->removeXLinkRef (this);
1.146 + beginBranch=NULL;
1.147 + if (endBranch)
1.148 + endBranch->removeXLinkRef (this);
1.149 + endBranch=NULL;
1.150 + visBranch=NULL;
1.151 + xLinkState=undefinedXLink;
1.152 +
1.153 + line->hide();
1.154 +}
1.155 +
1.156 +bool XLinkObj::isUsed()
1.157 +{
1.158 + if (beginBranch || endBranch || xLinkState!=undefinedXLink)
1.159 + return true;
1.160 + else
1.161 + return false;
1.162 +}
1.163 +
1.164 +void XLinkObj::updateXLink()
1.165 +{
1.166 + QPoint a,b;
1.167 + Q3PointArray pa (3);
1.168 + if (visBranch)
1.169 + {
1.170 + // Only one of the linked branches is visible
1.171 + a=b=visBranch->getChildPos();
1.172 + if (visBranch->getOrientation()==OrientRightOfCenter)
1.173 + {
1.174 + b.setX (b.x()+25);
1.175 + pa.putPoints (0,3,
1.176 + b.x(),b.y(),
1.177 + b.x()-arrowSize,b.y()-arrowSize,
1.178 + b.x()-arrowSize,b.y()+arrowSize
1.179 + );
1.180 + poly->setPoints (pa);
1.181 + } else
1.182 + {
1.183 + b.setX (b.x()-25);
1.184 + pa.putPoints (0,3,
1.185 + b.x(),b.y(),
1.186 + b.x()+arrowSize,b.y()-arrowSize,
1.187 + b.x()+arrowSize,b.y()+arrowSize);
1.188 + poly->setPoints (pa);
1.189 + }
1.190 + } else
1.191 + {
1.192 + // Both linked branches are visible
1.193 + if (beginBranch)
1.194 + // If a link is just drawn in the editor,
1.195 + // we have already a beginBranch
1.196 + a=beginBranch->getChildPos();
1.197 + else
1.198 + // This shouldn't be reached normally...
1.199 + a=beginPos;
1.200 + if (xLinkState==activeXLink && endBranch)
1.201 + b=endBranch->getChildPos();
1.202 + else
1.203 + b=endPos;
1.204 + }
1.205 +
1.206 +
1.207 + if (line->startPoint()==a && line->endPoint()==b && !visBranch)
1.208 + {
1.209 + // update is called from both branches, so only
1.210 + // update if something has changed
1.211 + return;
1.212 + }
1.213 + else
1.214 + {
1.215 + beginPos=a;
1.216 + endPos=b;
1.217 + line->setPen (QPen(color, width));
1.218 + line->setPoints (a.x(), a.y(), b.x(), b.y());
1.219 + }
1.220 +}
1.221 +
1.222 +BranchObj* XLinkObj::otherBranch(BranchObj* thisBranch)
1.223 +{
1.224 + if (!beginBranch && !endBranch)
1.225 + return NULL;
1.226 + if (thisBranch==beginBranch)
1.227 + return endBranch;
1.228 + else
1.229 + return beginBranch;
1.230 +}
1.231 +
1.232 +void XLinkObj::positionBBox()
1.233 +{
1.234 +}
1.235 +
1.236 +void XLinkObj::calcBBoxSize()
1.237 +{
1.238 +}
1.239 +
1.240 +void XLinkObj::setVisibility (bool b)
1.241 +{
1.242 + MapObj::setVisibility (b);
1.243 + if (b)
1.244 + {
1.245 + line->show();
1.246 + if (visBranch)
1.247 + poly->show();
1.248 + else
1.249 + poly->hide();
1.250 + }
1.251 + else
1.252 + {
1.253 + line->hide();
1.254 + poly->hide();
1.255 + }
1.256 +}
1.257 +
1.258 +void XLinkObj::setVisibility ()
1.259 +{
1.260 + if (beginBranch && endBranch)
1.261 + {
1.262 + if(beginBranch->isVisibleObj() && endBranch->isVisibleObj())
1.263 + { // Both ends are visible
1.264 + visBranch=NULL;
1.265 + setVisibility (true);
1.266 + } else
1.267 + {
1.268 + if(!beginBranch->isVisibleObj() && !endBranch->isVisibleObj())
1.269 + { //None of the ends is visible
1.270 + visBranch=NULL;
1.271 + setVisibility (false);
1.272 + } else
1.273 + { // Just one end is visible, draw a symbol that shows
1.274 + // that there is a link to a scrolled branch
1.275 + if (beginBranch->isVisibleObj())
1.276 + visBranch=beginBranch;
1.277 + else
1.278 + visBranch=endBranch;
1.279 + setVisibility (true);
1.280 + }
1.281 + }
1.282 + }
1.283 +}
1.284 +
1.285 +QString XLinkObj::saveToDir ()
1.286 +{
1.287 + QString s="";
1.288 + if (beginBranch && endBranch &&xLinkState==activeXLink)
1.289 + {
1.290 + if (beginBranch==endBranch && xLinkState)
1.291 + s="";
1.292 + else
1.293 + {
1.294 + QString colAttr=attribut ("color",color.name());
1.295 + QString widAttr=attribut ("width",QString().setNum(width,10));
1.296 + QString begSelAttr=attribut ("beginBranch",beginBranch->getSelectString());
1.297 + QString endSelAttr=attribut ("endBranch", endBranch->getSelectString());
1.298 + s=beginElement ("xlink", colAttr +widAttr +begSelAttr +endSelAttr);
1.299 +
1.300 + s+=endElement ("xlink");
1.301 + }
1.302 + }
1.303 + return s;
1.304 +}
1.305 +