bool CFrmSettings::createLayout()
{
rdr_t rdr;
//first attach attributes to graph
int _pos = graphData.indexOf(tr("{"));
graphData.replace(_pos, 1,
"{" + WIDGET(QTextEdit,
teAttributes)->toPlainText());
/* Reset line number and file name;
* If known, might want to use real name
*/
agsetfile((char*)"<gvedit>");
QByteArray bytes = graphData.toUtf8();
rdr.data = bytes.constData();
rdr.len = strlen(rdr.data);
rdr.cur = 0;
graph = agmemread(rdr.data);
if (!graph)
return false;
if (agerrors()) {
agclose(graph);
graph = NULL;
return false;
}
Agraph_t *G = this->graph;
QString layout;
layout=WIDGET(QComboBox, cbLayout)->currentText();
gvLayout(gvc, G, (char *)layout.toUtf8().constData()); /* library function */
return true;
}
void QGVScene::loadLayout(const QString &text)
{
_graph->setGraph(QGVCore::agmemread2(text.toLocal8Bit().constData()));
if(gvLayout(_context->context(), _graph->graph(), "dot") != 0)
{
qCritical()<<"Layout render error"<<agerrors()<<QString::fromLocal8Bit(aglasterr());
return;
}
//Debug output
//gvRenderFilename(_context->context(), _graph->graph(), "png", "debug.png");
//Read nodes and edges
for (Agnode_t* node = agfstnode(_graph->graph()); node != NULL; node = agnxtnode(_graph->graph(), node))
{
QGVNode *inode = new QGVNode(new QGVNodePrivate(node), this);
inode->updateLayout();
addItem(inode);
_nodes.append (inode);
for (Agedge_t* edge = agfstout(_graph->graph(), node); edge != NULL; edge = agnxtout(_graph->graph(), edge))
{
QGVEdge *iedge = new QGVEdge(new QGVEdgePrivate(edge), this);
iedge->updateLayout();
addItem(iedge);
_edges.append (iedge);
}
}
update();
}
int gvFreeContext(GVC_t * gvc)
{
GVG_t *gvg, *gvg_next;
gvplugin_package_t *package, *package_next;
emit_once_reset();
gvg_next = gvc->gvgs;
while ((gvg = gvg_next)) {
gvg_next = gvg->next;
free(gvg);
}
package_next = gvc->packages;
while ((package = package_next)) {
package_next = package->next;
free(package->path);
free(package->name);
free(package);
}
gvjobs_delete(gvc);
if (gvc->config_path)
free(gvc->config_path);
if (gvc->input_filenames)
free(gvc->input_filenames);
free(gvc);
return (graphviz_errors + agerrors());
}
//------------------------------------------------------------------------------
int main(void) {
Agraph_t *g = agread(stdin, NULL);
if ( !g )
return 1;
agclose(mostra_grafo(g));
return agerrors();
}
int gvFreeContext(GVC_t * gvc)
{
if (gvc->active_jobs)
gvdevice_finalize(gvc);
emit_jobs_eof(gvc);
gvrender_delete_jobs(gvc);
if (gvc->config_path)
free(gvc->config_path);
free(gvc);
return (graphviz_errors + agerrors());
}
int main(int argc, char **argv)
{
Agraph_t *g;
ingraph_state ig;
init(argc, argv);
newIngraph(&ig, Files, gread);
while ((g = nextGraph(&ig)) != 0) {
if (!chkOnly) agwrite(g, stdout);
agclose(g);
}
return(ig.errors | agerrors());
}
void QGVScene::applyLayout(const QString &algorithm)
{
if(gvLayout(_context->context(), _graph->graph(),
algorithm.toLocal8Bit().data()) != 0)
{
/*
* Si plantage ici :
* - Verifier que les dll sont dans le repertoire d'execution
* - Verifie que le fichier "configN" est dans le repertoire d'execution !
*/
qCritical()<<"Layout render error"<<agerrors()<<QString::fromLocal8Bit(aglasterr());
return;
}
//Debug output
//gvRenderFilename(_context->context(), _graph->graph(), "canon", "debug.dot");
//gvRenderFilename(_context->context(), _graph->graph(), "png", "debug.png");
//Update items layout
foreach(QGVNode* node, _nodes)
node->updateLayout();
foreach(QGVEdge* edge, _edges)
edge->updateLayout();
foreach(QGVSubGraph* sgraph, _subGraphs)
sgraph->updateLayout();
//Graph label
textlabel_t *xlabel = GD_label(_graph->graph());
if(xlabel)
{
if (_label == NULL)
_label = addText(xlabel->text);
else
_label->setPlainText (xlabel->text);
_label->setPos(QGVCore::centerToOrigin(QGVCore::toPoint(xlabel->pos, QGVCore::graphHeight(_graph->graph())), xlabel->dimen.x, -4));
}
update();
}
void dotneato_terminate(GVC_t *gvc)
{
dotneato_eof(gvc);
exit(graphviz_errors + agerrors());
}
