insilmaril@0: #include "headingobj.h"
insilmaril@185: #include <qregexp.h>
insilmaril@0: 
insilmaril@0: /////////////////////////////////////////////////////////////////
insilmaril@0: // HeadingObj
insilmaril@0: /////////////////////////////////////////////////////////////////
insilmaril@0: HeadingObj::HeadingObj() : MapObj()
insilmaril@0: {
insilmaril@0: //    cout << "Const HeadingObj ()\n";
insilmaril@0:     init ();
insilmaril@0: }
insilmaril@0: 
insilmaril@0: HeadingObj::HeadingObj(QCanvas* c) :MapObj(c)
insilmaril@0: {
insilmaril@0: //    cout << "Const HeadingObj\n";
insilmaril@0:     init ();
insilmaril@0: }
insilmaril@0: 
insilmaril@0: HeadingObj::~HeadingObj()
insilmaril@0: {
insilmaril@0:     textline.clear();
insilmaril@0: }
insilmaril@0: 
insilmaril@0: void HeadingObj::init()
insilmaril@0: {
insilmaril@0:     textline.setAutoDelete (TRUE);
insilmaril@0:     textwidth=40;
insilmaril@0:     color=QColor ("black");
insilmaril@0:     font=QFont();
insilmaril@0: }
insilmaril@0: 
insilmaril@0: void HeadingObj::copy(HeadingObj *other)
insilmaril@0: {
insilmaril@0:     MapObj::copy (other);
insilmaril@0:     textwidth=other->textwidth;
insilmaril@0:     color=other->color;
insilmaril@0:     font=other->font;
insilmaril@0:     setText (other->text() );
insilmaril@0: }
insilmaril@0: 
insilmaril@0: void HeadingObj::move(double x, double y)
insilmaril@0: {
insilmaril@0:     MapObj::move(x,y);
insilmaril@173: 
insilmaril@0:     int h;	// height of a textline
insilmaril@0:     int ho;	// offset of height while drawing all lines
insilmaril@173: 
insilmaril@0:     if (textline.first() )
insilmaril@0: 		h=textline.first()->boundingRect().height();
insilmaril@0:     else
insilmaril@0: 		h=2;
insilmaril@0:     QCanvasText *t;
insilmaril@0:     ho=0;
insilmaril@0:     for (t=textline.first(); t; t=textline.next() )
insilmaril@0:     {
insilmaril@0: 		t->move(x,y+ho);
insilmaril@0: 		ho=ho+h;
insilmaril@0:     }	
insilmaril@0: }
insilmaril@0: 
insilmaril@0: 
insilmaril@0: void HeadingObj::moveBy(double x, double y)
insilmaril@0: {
insilmaril@0:     move (x+absPos.x(),y+absPos.y() );
insilmaril@0: }
insilmaril@0: 
insilmaril@0: void HeadingObj::positionBBox()
insilmaril@0: {
insilmaril@0:     bbox.setX (absPos.x());
insilmaril@0:     bbox.setY (absPos.y());
insilmaril@0: }
insilmaril@0: 
insilmaril@0: void HeadingObj::calcBBoxSize()
insilmaril@0: {	
insilmaril@0: 	int w=0;
insilmaril@0: 	int h=0;
insilmaril@0: 	// Using Backspace an empty heading might easily be created, then there
insilmaril@0: 	// would be textline.first()==NULL This can be worked around by the following, but
insilmaril@0: 	// then no selection would be visible, thus we prevent it in ::setText()
insilmaril@0: 	if (!textline.isEmpty() )
insilmaril@0: 	{
insilmaril@0: 		QCanvasText *t;
insilmaril@0: 		for (t=textline.first(); t; t=textline.next() )
insilmaril@0: 		{
insilmaril@0: 			h+=t->boundingRect().height();
insilmaril@0: 			if (w<t->boundingRect().width() )
insilmaril@0: 				w=t->boundingRect().width();
insilmaril@0: 		}	
insilmaril@0: 	} 
insilmaril@0:     bbox.setSize (QSize(w,h));
insilmaril@0: }
insilmaril@0: 
insilmaril@0: QCanvasText* HeadingObj::newLine(QString s)
insilmaril@0: {
insilmaril@0:     QCanvasText *t;
insilmaril@0:     t = new QCanvasText(canvas);
insilmaril@0:     t->setFont (font);
insilmaril@0:     t->setColor (color);
insilmaril@0:     t->setZ(Z_TEXT);
insilmaril@0:     t->setText(s);
insilmaril@166: 	t->setTextFlags(Qt::AlignLeft);
insilmaril@0:     t->show();
insilmaril@0:     return t;
insilmaril@0: }
insilmaril@0: 
insilmaril@0: void HeadingObj::setText (QString s)
insilmaril@0: {
insilmaril@0:     heading=s;
insilmaril@0: 
insilmaril@0:     // remove old textlines and prepare generating new ones
insilmaril@0:     textline.clear();
insilmaril@0: 
insilmaril@0: 	// prevent empty textline, so at least a small selection stays
insilmaril@0: 	// visible for this heading
insilmaril@0: 	if (s.length()==0) s="  ";
insilmaril@0: 
insilmaril@0:     int i=0;	// index for actual search for ws
insilmaril@0:     int j=0;	// index of last ws
insilmaril@0: 	int k=0;	// index of "<br>" or similar linebreak
insilmaril@0: 	int br=0;	// width of found break, e.g. for <br> it is 4
insilmaril@185: 	QRegExp re("<br.*/>");
insilmaril@185: 	re.setMinimal (true);
insilmaril@0: 
insilmaril@0:     // set the text and wrap lines
insilmaril@0:     while (s.length()>0)
insilmaril@0:     {
insilmaril@0: 		// ok, some people wanted manual linebreaks, here we go
insilmaril@185: 		k=re.search (s,i);
insilmaril@0: 		if (k>=0)
insilmaril@0: 		{
insilmaril@185: 			br=re.cap(0).length();
insilmaril@0: 			i=k;
insilmaril@0: 		} else
insilmaril@0: 			i=s.find (" ",i,false);
insilmaril@0: 		if (i<0 && j==0)
insilmaril@0: 		{   // no ws found at all in s
insilmaril@0: 			// append whole s
insilmaril@0: 			textline.append (newLine(s));
insilmaril@0: 			s="";
insilmaril@0: 		} else
insilmaril@0: 		{
insilmaril@0: 			if (i<0 && j>0)
insilmaril@0: 			{	// no ws found in actual search
insilmaril@0: 				if (s.length()<=textwidth)
insilmaril@0: 				{
insilmaril@0: 					textline.append (newLine(s));
insilmaril@0: 					s="";
insilmaril@0: 				} else
insilmaril@0: 				{
insilmaril@0: 					textline.append (newLine(s.left(j)));
insilmaril@0: 					s=s.mid(j+1,s.length());
insilmaril@0: 					j=0;
insilmaril@0: 				}		    
insilmaril@0: 			} else
insilmaril@0: 			{
insilmaril@0: 				if (i>= 0 && i<=static_cast <int> (textwidth))
insilmaril@0: 				{   // there is a ws in textwidth
insilmaril@0: 					if (br>0)
insilmaril@0: 					{
insilmaril@0: 						// here is a linebreak
insilmaril@0: 						textline.append (newLine(s.left(i)));
insilmaril@0: 						s=s.mid(i+br,s.length());
insilmaril@0: 						i=0;
insilmaril@0: 						j=0;
insilmaril@0: 						br=0;
insilmaril@0: 					} else
insilmaril@0: 					{
insilmaril@0: 						j=i;
insilmaril@0: 						i++;
insilmaril@0: 					}
insilmaril@0: 				} else
insilmaril@0: 				{
insilmaril@0: 					if (i>static_cast <int> (textwidth)  )
insilmaril@0: 					{	
insilmaril@0: 						if (j>0)
insilmaril@0: 						{   // a ws out of textwidth, but we have also one in
insilmaril@0: 							textline.append (newLine(s.left(j)));
insilmaril@0: 							s=s.mid(j+1,s.length());
insilmaril@0: 							i=0;
insilmaril@0: 							j=0;
insilmaril@0: 						} else
insilmaril@0: 						{   // a ws out of text, but none in
insilmaril@0: 							textline.append (newLine(s.left(i)));
insilmaril@0: 							s=s.mid(i+1,s.length());
insilmaril@0: 							i=0;
insilmaril@0: 						}
insilmaril@0: 					}
insilmaril@0: 				} 
insilmaril@0: 			}	  
insilmaril@0: 		}		    
insilmaril@0:     }
insilmaril@0: 	setVisibility (visible);
insilmaril@173: 	move (absPos.x(),absPos.y());
insilmaril@0: 	calcBBoxSize();
insilmaril@0: }
insilmaril@0: 
insilmaril@0: QString HeadingObj::text ()
insilmaril@0: {
insilmaril@0:     return heading;
insilmaril@0: }
insilmaril@0: 
insilmaril@0: void HeadingObj::setFont (QFont f)
insilmaril@0: {
insilmaril@0:     if (font!=f) 
insilmaril@0:     {
insilmaril@0: 		font=f;
insilmaril@0: 		setText (text());
insilmaril@0:     }
insilmaril@0: }
insilmaril@0: 
insilmaril@0: QFont HeadingObj::getFont()
insilmaril@0: {
insilmaril@0:     return font;
insilmaril@0: }    
insilmaril@0: 	
insilmaril@0: 	
insilmaril@0: void HeadingObj::setColor (QColor c)
insilmaril@0: {
insilmaril@0:     if (color!=c)
insilmaril@0:     {
insilmaril@0: 		color=c;
insilmaril@0: 		QCanvasText *t;
insilmaril@0: 		for (t=textline.first(); t; t=textline.next() )
insilmaril@0: 			t->setColor(c);
insilmaril@0:     }	    
insilmaril@0: }
insilmaril@0: 
insilmaril@0: QColor HeadingObj::getColor()
insilmaril@0: {
insilmaril@0:     return color;
insilmaril@0: }    
insilmaril@0: 
insilmaril@0: void HeadingObj::setVisibility (bool v)
insilmaril@0: {
insilmaril@0:     MapObj::setVisibility(v);
insilmaril@0:     QCanvasText *t;
insilmaril@0:     for (t=textline.first(); t; t=textline.next() )
insilmaril@0: 		if (v)
insilmaril@0: 			t->show();
insilmaril@0: 		else
insilmaril@0: 			t->hide();
insilmaril@0: }
insilmaril@0: 
insilmaril@0: int HeadingObj::getHeight ()
insilmaril@0: {
insilmaril@0: 	return bbox.height();
insilmaril@0: }
insilmaril@0: 
insilmaril@0: int HeadingObj::getWidth()
insilmaril@0: {
insilmaril@0: 	return bbox.width();
insilmaril@0: }
insilmaril@0: