1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/headingobj.cpp Sun Jan 30 12:58:55 2005 +0000
1.3 @@ -0,0 +1,246 @@
1.4 +#include "headingobj.h"
1.5 +
1.6 +/////////////////////////////////////////////////////////////////
1.7 +// HeadingObj
1.8 +/////////////////////////////////////////////////////////////////
1.9 +HeadingObj::HeadingObj() : MapObj()
1.10 +{
1.11 +// cout << "Const HeadingObj ()\n";
1.12 + init ();
1.13 +}
1.14 +
1.15 +HeadingObj::HeadingObj(QCanvas* c) :MapObj(c)
1.16 +{
1.17 +// cout << "Const HeadingObj\n";
1.18 + init ();
1.19 +}
1.20 +
1.21 +HeadingObj::~HeadingObj()
1.22 +{
1.23 + textline.clear();
1.24 +}
1.25 +
1.26 +void HeadingObj::init()
1.27 +{
1.28 + textline.setAutoDelete (TRUE);
1.29 + textwidth=40;
1.30 + color=QColor ("black");
1.31 + font=QFont();
1.32 +}
1.33 +
1.34 +void HeadingObj::copy(HeadingObj *other)
1.35 +{
1.36 + MapObj::copy (other);
1.37 + textwidth=other->textwidth;
1.38 + color=other->color;
1.39 + font=other->font;
1.40 + setText (other->text() );
1.41 +}
1.42 +
1.43 +void HeadingObj::move(double x, double y)
1.44 +{
1.45 + MapObj::move(x,y);
1.46 + int h; // height of a textline
1.47 + int ho; // offset of height while drawing all lines
1.48 + if (textline.first() )
1.49 + h=textline.first()->boundingRect().height();
1.50 + else
1.51 + h=2;
1.52 + QCanvasText *t;
1.53 + ho=0;
1.54 + for (t=textline.first(); t; t=textline.next() )
1.55 + {
1.56 + t->move(x,y+ho);
1.57 + ho=ho+h;
1.58 + }
1.59 +}
1.60 +
1.61 +
1.62 +void HeadingObj::moveBy(double x, double y)
1.63 +{
1.64 + move (x+absPos.x(),y+absPos.y() );
1.65 +}
1.66 +
1.67 +void HeadingObj::positionBBox()
1.68 +{
1.69 + bbox.setX (absPos.x());
1.70 + bbox.setY (absPos.y());
1.71 +}
1.72 +
1.73 +void HeadingObj::calcBBoxSize()
1.74 +{
1.75 + int w=0;
1.76 + int h=0;
1.77 + // Using Backspace an empty heading might easily be created, then there
1.78 + // would be textline.first()==NULL This can be worked around by the following, but
1.79 + // then no selection would be visible, thus we prevent it in ::setText()
1.80 + if (!textline.isEmpty() )
1.81 + {
1.82 + QCanvasText *t;
1.83 + for (t=textline.first(); t; t=textline.next() )
1.84 + {
1.85 + h+=t->boundingRect().height();
1.86 + if (w<t->boundingRect().width() )
1.87 + w=t->boundingRect().width();
1.88 + }
1.89 + }
1.90 + bbox.setSize (QSize(w,h));
1.91 +}
1.92 +
1.93 +QCanvasText* HeadingObj::newLine(QString s)
1.94 +{
1.95 + QCanvasText *t;
1.96 + t = new QCanvasText(canvas);
1.97 + t->setFont (font);
1.98 + t->setColor (color);
1.99 + t->setZ(Z_TEXT);
1.100 + t->setText(s);
1.101 + t->show();
1.102 + return t;
1.103 +}
1.104 +
1.105 +void HeadingObj::setText (QString s)
1.106 +{
1.107 + heading=s;
1.108 +
1.109 + // remove old textlines and prepare generating new ones
1.110 + textline.clear();
1.111 +
1.112 + // prevent empty textline, so at least a small selection stays
1.113 + // visible for this heading
1.114 + if (s.length()==0) s=" ";
1.115 +
1.116 + int i=0; // index for actual search for ws
1.117 + int j=0; // index of last ws
1.118 + int k=0; // index of "<br>" or similar linebreak
1.119 + int br=0; // width of found break, e.g. for <br> it is 4
1.120 +
1.121 + // set the text and wrap lines
1.122 + while (s.length()>0)
1.123 + {
1.124 + // ok, some people wanted manual linebreaks, here we go
1.125 + k=s.find ("<br>",i,false);
1.126 + if (k>=0)
1.127 + {
1.128 + br=4;
1.129 + i=k;
1.130 + } else
1.131 + i=s.find (" ",i,false);
1.132 + if (i<0 && j==0)
1.133 + { // no ws found at all in s
1.134 + // append whole s
1.135 + textline.append (newLine(s));
1.136 + s="";
1.137 + } else
1.138 + {
1.139 + if (i<0 && j>0)
1.140 + { // no ws found in actual search
1.141 + if (s.length()<=textwidth)
1.142 + {
1.143 + textline.append (newLine(s));
1.144 + s="";
1.145 + } else
1.146 + {
1.147 + textline.append (newLine(s.left(j)));
1.148 + s=s.mid(j+1,s.length());
1.149 + j=0;
1.150 + }
1.151 + } else
1.152 + {
1.153 + if (i>= 0 && i<=static_cast <int> (textwidth))
1.154 + { // there is a ws in textwidth
1.155 + if (br>0)
1.156 + {
1.157 + // here is a linebreak
1.158 + textline.append (newLine(s.left(i)));
1.159 + s=s.mid(i+br,s.length());
1.160 + i=0;
1.161 + j=0;
1.162 + br=0;
1.163 + } else
1.164 + {
1.165 + j=i;
1.166 + i++;
1.167 + }
1.168 + } else
1.169 + {
1.170 + if (i>static_cast <int> (textwidth) )
1.171 + {
1.172 + if (j>0)
1.173 + { // a ws out of textwidth, but we have also one in
1.174 + textline.append (newLine(s.left(j)));
1.175 + s=s.mid(j+1,s.length());
1.176 + i=0;
1.177 + j=0;
1.178 + } else
1.179 + { // a ws out of text, but none in
1.180 + textline.append (newLine(s.left(i)));
1.181 + s=s.mid(i+1,s.length());
1.182 + i=0;
1.183 + }
1.184 + }
1.185 + }
1.186 + }
1.187 + }
1.188 + }
1.189 + setVisibility (visible);
1.190 + calcBBoxSize();
1.191 +}
1.192 +
1.193 +QString HeadingObj::text ()
1.194 +{
1.195 + return heading;
1.196 +}
1.197 +
1.198 +void HeadingObj::setFont (QFont f)
1.199 +{
1.200 + if (font!=f)
1.201 + {
1.202 + font=f;
1.203 + setText (text());
1.204 + }
1.205 +}
1.206 +
1.207 +QFont HeadingObj::getFont()
1.208 +{
1.209 + return font;
1.210 +}
1.211 +
1.212 +
1.213 +void HeadingObj::setColor (QColor c)
1.214 +{
1.215 + if (color!=c)
1.216 + {
1.217 + color=c;
1.218 + QCanvasText *t;
1.219 + for (t=textline.first(); t; t=textline.next() )
1.220 + t->setColor(c);
1.221 + }
1.222 +}
1.223 +
1.224 +QColor HeadingObj::getColor()
1.225 +{
1.226 + return color;
1.227 +}
1.228 +
1.229 +void HeadingObj::setVisibility (bool v)
1.230 +{
1.231 + MapObj::setVisibility(v);
1.232 + QCanvasText *t;
1.233 + for (t=textline.first(); t; t=textline.next() )
1.234 + if (v)
1.235 + t->show();
1.236 + else
1.237 + t->hide();
1.238 +}
1.239 +
1.240 +int HeadingObj::getHeight ()
1.241 +{
1.242 + return bbox.height();
1.243 +}
1.244 +
1.245 +int HeadingObj::getWidth()
1.246 +{
1.247 + return bbox.width();
1.248 +}
1.249 +