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/*
* KSeg
* Copyright (C) 1999-2006 Ilya Baran
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*
* Send comments and/or bug reports to:
* ibaran@mit.edu
*/
#include "G_drawstyle.H"
#include "G_refs.H"
#include "G_ref.H"
#include "KSegProperties.H"
QPtrList<G_drawstyle> G_drawstyle::styles;
G_drawstyle *G_drawstyle::match(PointStyle point, const QFont *f,
const QPen *p, const QBrush *b)
{
G_drawstyle *newDrawstyle;
QPtrListIterator<G_drawstyle> iter(styles);
for(; iter.current() != NULL; ++iter) {
if(point != ANY && point != iter.current()->pointStyle) continue;
if(f != 0 && *f != iter.current()->font) continue;
if(p != 0 && *p != iter.current()->pen) continue;
if(b != 0 && *b != iter.current()->brush) continue;
//if we are here, we found a match. Add a reference to it and return it.
iter.current()->num_refs++;
return iter.current();
}
//if we are here, we need to create a new drawstyle.
newDrawstyle = new G_drawstyle();
if(point != ANY) newDrawstyle->pointStyle = point; else newDrawstyle->pointStyle = LARGE_CIRCLE;
if(f != 0) newDrawstyle->font = *f; else newDrawstyle->font = QFont("Arial", 20);
if(p != 0) newDrawstyle->pen = *p; else newDrawstyle->pen = QPen();
if(b != 0) newDrawstyle->brush = *b; else newDrawstyle->brush =
QBrush(Qt::black, Qt::Dense4Pattern);
return newDrawstyle;
}
G_drawstyle *G_drawstyle::defaultStyle() {
QFont f("Arial", 20);
QPen p;
QBrush b(Qt::black, Qt::Dense4Pattern);
return match(LARGE_CIRCLE, &f, &p, &b);
}
void G_drawstyle::deleteReference() // do not use the object after calling this guy.
{
num_refs--;
if(num_refs == 0) {
styles.remove(this);
delete this;
}
}
G_drawstyle::G_drawstyle()
{
num_refs = 1;
pointStyle = SMALL_CIRCLE;
styles.append(this);
}
QMap<G_drawstyle *, short> G_drawstyle::saveUsed(QDataStream &stream, G_refs &refs)
{
QMap<G_drawstyle *, short> toBeReturned;
std::vector<G_drawstyle *> usedDrawstyles;
int i;
int numStyles = 0;
//make the map first
for(i = 0; i < (int)refs.count(); i++) {
if(!(toBeReturned.contains(refs[i]->getDrawstyle()))) {
toBeReturned.insert(refs[i]->getDrawstyle(), numStyles++);
usedDrawstyles.push_back(refs[i]->getDrawstyle());
}
}
ASSERT(numStyles < 32767);
//now save all the drawstyles in the map:
stream << (short)numStyles;
for(i = 0; i < numStyles; ++i) {
G_drawstyle *tmp = usedDrawstyles[i];
stream << (Q_INT8)tmp->pointStyle;
stream << tmp->font;
stream << tmp->pen;
stream << tmp->brush;
}
return toBeReturned;
}
QMemArray<G_drawstyle *> G_drawstyle::loadUsed(QDataStream &stream)
{
QMemArray<G_drawstyle *> toBeReturned;
short numStyles;
int i;
stream >> numStyles;
toBeReturned.resize(numStyles);
for(i = 0; i < numStyles; i++) {
Q_INT8 pointStyle;
QFont font;
QBrush brush;
QPen pen;
stream >> pointStyle >> font >> pen >> brush;
toBeReturned[i] = match((PointStyle)pointStyle, &font, &pen, &brush);
}
return toBeReturned;
}
QColor G_drawstyle::getBorderColor(const QColor &drawColor)
{
QColor bg = QColor(KSegProperties::getProperty("BackgroundColor"));
int rbg, gbg, bbg, rdc, gdc, bdc;
bg.rgb(&rbg, &gbg, &bbg);
drawColor.rgb(&rdc, &gdc, &bdc);
int dred = QMIN(SQR(rbg - 255) + SQR(gbg) + SQR(bbg), SQR(rdc - 255) + SQR(gdc) + SQR(bdc));
int dblack = QMIN(SQR(rbg) + SQR(gbg) + SQR(bbg), SQR(rdc) + SQR(gdc) + SQR(bdc));
int dwhite = QMIN(SQR(rbg - 255) + SQR(gbg - 255) + SQR(bbg - 255), \
SQR(rdc - 255) + SQR(gdc - 255) + SQR(bdc - 255));
if(dred > dblack && dred > dwhite) return Qt::red;
if(dblack > dwhite) return Qt::black;
return Qt::white;
}
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