File indexing completed on 2024-05-12 04:21:20

 
 /*
    Copyright (c) 2003-2007 Clarence Dang <dang@kde.org>
    All rights reserved.
 
    Redistribution and use in source and binary forms, with or without
    modification, are permitted provided that the following conditions
    are met:
 
    1. Redistributions of source code must retain the above copyright
       notice, this list of conditions and the following disclaimer.
    2. Redistributions in binary form must reproduce the above copyright
       notice, this list of conditions and the following disclaimer in the
       documentation and/or other materials provided with the distribution.
 
    THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
    IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
    OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
    IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
    INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
    NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
    DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
    THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
    (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
    THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */
 
 
 #define DEBUG_KP_SELECTION 0
 
 
 #include "layers/selections/kpAbstractSelection.h"
 
 #include <QPolygon>
 #include <QRect>
 
 #include "kpLogCategories.h"
 
 struct kpAbstractSelectionPrivate
 {
     QRect rect;
 };
 
 
 // protected
 kpAbstractSelection::kpAbstractSelection ()
     : QObject (),
       d (new kpAbstractSelectionPrivate ())
 {
     d->rect = QRect ();
 }
 
 // protected
 kpAbstractSelection::kpAbstractSelection (const QRect &rect)
     : QObject (),
       d (new kpAbstractSelectionPrivate ())
 {
     d->rect = rect;
 }
 
 // protected
 kpAbstractSelection &kpAbstractSelection::operator= (const kpAbstractSelection &rhs)
 {
     if (this == &rhs) {
         return *this;
     }
 
     d->rect = rhs.d->rect;
 
     return *this;
 }
 
 // protected
 kpAbstractSelection::~kpAbstractSelection ()
 {
     delete d;
 }
 
 
 // public virtual
 bool kpAbstractSelection::readFromStream (QDataStream &stream)
 {
     stream >> d->rect;
 
     return true;
 }
 
 // public virtual
 void kpAbstractSelection::writeToStream (QDataStream &stream) const
 {
     stream << d->rect;
 }
 
 // friend
 QDataStream &operator<< (QDataStream &stream, const kpAbstractSelection &selection)
 {
 #if DEBUG_KP_SELECTION && 1
     qCDebug(kpLogLayers) << "kpAbstractSelection::operator<<(sel: rect=" <<
                  selection.boundingRect ();
 #endif
     stream << selection.serialID ();
     selection.writeToStream (stream);
     return stream;
 }
 
 
 // public virtual
 kpCommandSize::SizeType kpAbstractSelection::size () const
 {
     return 0/*constant size*/;
 }
 
 
 // public
 QSize kpAbstractSelection::minimumSize () const
 {
     return  {minimumWidth (), minimumHeight ()};
 }
 
 
 // public
 int kpAbstractSelection::x () const
 {
     return d->rect.x ();
 }
 
 // public
 int kpAbstractSelection::y () const
 {
     return d->rect.y ();
 }
 
 // public
 QPoint kpAbstractSelection::topLeft () const
 {
     return d->rect.topLeft ();
 }
 
 
 // public
 int kpAbstractSelection::width () const
 {
     return boundingRect ().width ();
 }
 
 // public
 int kpAbstractSelection::height () const
 {
     return boundingRect ().height ();
 }
 
 // public
 QRect kpAbstractSelection::boundingRect () const
 {
     return d->rect;
 }
 
 // public static
 QPolygon kpAbstractSelection::CalculatePointsForRectangle (const QRect &rect)
 {
     QPolygon points;
 
     // OPT: not space optimal - current code adds duplicate corner points.
 
     // top
     for (int x = 0; x < rect.width (); x++) {
         points.append (QPoint (rect.x () + x, rect.top ()));
     }
 
     // right
     for (int y = 0; y < rect.height (); y++) {
         points.append (QPoint (rect.right (), rect.y () + y));
     }
 
     // bottom
     for (int x = rect.width () - 1; x >= 0; x--) {
         points.append (QPoint (rect.x () + x, rect.bottom ()));
     }
 
     // left
     for (int y = rect.height () - 1; y >= 0; y--) {
         points.append (QPoint (rect.left (), rect.y () + y));
     }
 
     return points;
 }
 
 
 // public
 bool kpAbstractSelection::contains (int x, int y) const
 {
     return contains (QPoint (x, y));
 }
 
 
 // public virtual
 void kpAbstractSelection::moveBy (int dx, int dy)
 {
 #if DEBUG_KP_SELECTION && 1
     qCDebug(kpLogLayers) << "kpAbstractSelection::moveBy(" << dx << "," << dy << ")";
 #endif
 
     if (dx == 0 && dy == 0) {
         return;
     }
 
     QRect oldRect = boundingRect ();
 
 #if DEBUG_KP_SELECTION && 1
     qCDebug(kpLogLayers) << "\toldRect=" << oldRect;
 #endif
 
     d->rect.translate (dx, dy);
 #if DEBUG_KP_SELECTION && 1
     qCDebug(kpLogLayers) << "\tnewRect=" << d->rect;
 #endif
 
     Q_EMIT changed (oldRect);
     Q_EMIT changed (boundingRect ());
 }
 
 // public
 void kpAbstractSelection::moveTo (int dx, int dy)
 {
     moveTo (QPoint (dx, dy));
 }
 
 // public
 void kpAbstractSelection::moveTo (const QPoint &topLeftPoint)
 {
 #if DEBUG_KP_SELECTION && 1
     qCDebug(kpLogLayers) << "kpAbstractSelection::moveTo(" << topLeftPoint << ")";
 #endif
     QRect oldBoundingRect = boundingRect ();
 #if DEBUG_KP_SELECTION && 1
     qCDebug(kpLogLayers) << "\toldBoundingRect=" << oldBoundingRect;
 #endif
     if (topLeftPoint == oldBoundingRect.topLeft ()) {
         return;
     }
 
     QPoint delta (topLeftPoint - oldBoundingRect.topLeft ());
     moveBy (delta.x (), delta.y ());
 }
 
 //---------------------------------------------------------------------
 
 // protected
 void kpAbstractSelection::paintRectangularBorder (QImage *destPixmap,
         const QRect &docRect,
         bool selectionFinished) const
 {
     (void) selectionFinished;
 
 #if DEBUG_KP_SELECTION && 1
     qCDebug(kpLogLayers) << "kpAbstractSelection::paintRectangularBorder() boundingRect="
               << boundingRect ();
 #endif
 
 #if DEBUG_KP_SELECTION && 1
     qCDebug(kpLogLayers) << "\tselection border = rectangle";
     qCDebug(kpLogLayers) << "\t\tx=" << boundingRect ().x () - docRect.x ()
               << " y=" << boundingRect ().y () - docRect.y ()
               << " w=" << boundingRect ().width ()
               << " h=" << boundingRect ().height ();
 #endif
     kpPixmapFX::drawStippleRect(destPixmap,
         boundingRect ().x () - docRect.x (),
         boundingRect ().y () - docRect.y (),
         boundingRect ().width (),
         boundingRect ().height (),
         kpColor::Blue,
         kpColor::Yellow);
 }
 
 //---------------------------------------------------------------------
 
 // protected
 void kpAbstractSelection::paintPolygonalBorder (const QPolygon &points,
         QImage *destPixmap,
         const QRect &docRect,
         bool selectionFinished) const
 {
 #if DEBUG_KP_SELECTION && 1
     qCDebug(kpLogLayers) << "kpAbstractSelection::paintPolygonalBorder() boundingRect="
               << boundingRect ();
 #endif
 
     QPolygon pointsTranslated = points;
     pointsTranslated.translate (-docRect.x (), -docRect.y ());
 
     if ( !selectionFinished )
     {
       kpPixmapFX::drawPolyline(destPixmap,
         pointsTranslated, kpColor::Blue, 1/*pen width*/, kpColor::Yellow);
     }
     else
     {
       kpPixmapFX::drawPolygon(destPixmap,
           pointsTranslated,
           kpColor::Blue, 1/*pen width*/,
           kpColor::Invalid/*no background*/,
           true/*is final*/,
           kpColor::Yellow);
 
       kpPixmapFX::drawStippleRect(destPixmap,
           boundingRect ().x () - docRect.x (),
           boundingRect ().y () - docRect.y (),
           boundingRect ().width (),
           boundingRect ().height (),
           kpColor::LightGray,
           kpColor::DarkGray);
     }
 }
 
 #include "moc_kpAbstractSelection.cpp"