File indexing completed on 2024-06-23 04:19:02

 
 /*
    Copyright (c) 2003-2007 Clarence Dang <dang@kde.org>
    Copyright (c) 2010 Tasuku Suzuki <stasuku@gmail.com>
    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 "kpTextSelection.h"
 #include "kpTextSelectionPrivate.h"
 
 #include "kpDefs.h"
 #include "kpTextStyle.h"
 
 #include "kpLogCategories.h"
 
 #include <QFontMetrics>
 #include <QList>
 
 
 // public
 kpTextSelection::kpTextSelection (const QRect &rect,
         const kpTextStyle &textStyle)
     : kpAbstractSelection (rect),
       d (new kpTextSelectionPrivate ())
 {
     d->textStyle = textStyle;
 }
 
 // public
 kpTextSelection::kpTextSelection (const QRect &rect,
         const QList <QString> &textLines,
         const kpTextStyle &textStyle)
     : kpAbstractSelection (rect),
       d (new kpTextSelectionPrivate ())
 {
     d->textLines = textLines;
     d->textStyle = textStyle;
 }
 
 // public
 kpTextSelection::kpTextSelection (const kpTextSelection &rhs)
     : kpAbstractSelection (),
       d (new kpTextSelectionPrivate ())
 {
     *this = rhs;
 }
 
 // public
 kpTextSelection &kpTextSelection::operator= (const kpTextSelection &rhs)
 {
     kpAbstractSelection::operator= (rhs);
 
     d->textLines = rhs.d->textLines;
     d->textStyle = rhs.d->textStyle;
     d->preeditText = rhs.d->preeditText;
 
     return *this;
 }
 
 // public virtual [base kpAbstractSelection]
 kpTextSelection *kpTextSelection::clone () const
 {
     kpTextSelection *sel = new kpTextSelection ();
     *sel = *this;
     return sel;
 }
 
 // public
 kpTextSelection *kpTextSelection::resized (int newWidth, int newHeight) const
 {
     return new kpTextSelection (QRect (x (), y (), newWidth, newHeight),
         d->textLines,
         d->textStyle);
 }
 
 // public
 kpTextSelection::~kpTextSelection ()
 {
     delete d;
 }
 
 
 // public virtual [kpAbstractSelection]
 int kpTextSelection::serialID () const
 {
     Q_ASSERT (!"Marshalling not supported");
     return -1;
 }
 
 // public virtual [base kpAbstractSelection]
 bool kpTextSelection::readFromStream (QDataStream &stream)
 {
     (void) stream;
 
     Q_ASSERT (!"Marshalling not supported");
     return false;
 }
 
 // public virtual [base kpAbstractSelection]
 void kpTextSelection::writeToStream (QDataStream &stream) const
 {
     (void) stream;
 
     Q_ASSERT (!"Marshalling not supported");
 }
 
 
 // public virtual [kpAbstractSelection]
 QString kpTextSelection::name () const
 {
     return i18n ("Text");
 }
 
 
 // public virtual [base kpAbstractSelection]
 kpCommandSize::SizeType kpTextSelection::size () const
 {
     return kpAbstractSelection::size () +
         kpCommandSize::StringSize (text ());
 }
 
 
 // public virtual [kpAbstractSelection]
 bool kpTextSelection::isRectangular () const
 {
     return true;
 }
 
 
 // public static
 int kpTextSelection::MinimumWidthForTextStyle (const kpTextStyle &)
 {
     return (kpTextSelection::TextBorderSize () * 2 + 5);
 }
 
 // public static
 int kpTextSelection::MinimumHeightForTextStyle (const kpTextStyle &)
 {
     return (kpTextSelection::TextBorderSize () * 2 + 5);
 }
 
 // public static
 QSize kpTextSelection::MinimumSizeForTextStyle (const kpTextStyle &textStyle)
 {
     return  {kpTextSelection::MinimumWidthForTextStyle (textStyle),
                 kpTextSelection::MinimumHeightForTextStyle (textStyle)};
 }
 
 
 // public virtual [kpAbstractSelection]
 int kpTextSelection::minimumWidth () const
 {
     return kpTextSelection::MinimumWidthForTextStyle (textStyle ());
 }
 
 // public virtual [kpAbstractSelection]
 int kpTextSelection::minimumHeight () const
 {
     return kpTextSelection::MinimumHeightForTextStyle (textStyle ());
 }
 
 
 // public static
 int kpTextSelection::PreferredMinimumWidthForTextStyle (const kpTextStyle &textStyle)
 {
     const int about15CharsWidth =
         textStyle.fontMetrics().horizontalAdvance(QLatin1String("1234567890abcde"));
 
     const int preferredMinWidth =
         qMax (150,
               kpTextSelection::TextBorderSize () * 2 + about15CharsWidth);
 
     return qMax (kpTextSelection::MinimumWidthForTextStyle (textStyle),
                  qMin (250, preferredMinWidth));
 }
 
 // public static
 int kpTextSelection::PreferredMinimumHeightForTextStyle (const kpTextStyle &textStyle)
 {
     const int preferredMinHeight =
         kpTextSelection::TextBorderSize () * 2 + textStyle.fontMetrics ().height ();
 
     return qMax (kpTextSelection::MinimumHeightForTextStyle (textStyle),
                  qMin (150, preferredMinHeight));
 }
 
 // public static
 QSize kpTextSelection::PreferredMinimumSizeForTextStyle (const kpTextStyle &textStyle)
 {
     return  {kpTextSelection::PreferredMinimumWidthForTextStyle (textStyle),
                 kpTextSelection::PreferredMinimumHeightForTextStyle (textStyle)};
 }
 
 
 // public static
 int kpTextSelection::TextBorderSize ()
 {
     return 1;
 }
 
 // public
 QRect kpTextSelection::textAreaRect () const
 {
     return  {x () + kpTextSelection::TextBorderSize (),
                 y () + kpTextSelection::TextBorderSize (),
                 width () - kpTextSelection::TextBorderSize () * 2,
                 height () - kpTextSelection::TextBorderSize () * 2};
 }
 
 
 // public virtual [kpAbstractSelection]
 QPolygon kpTextSelection::calculatePoints () const
 {
     return kpAbstractSelection::CalculatePointsForRectangle (boundingRect ());
 }
 
 
 // public virtual [kpAbstractSelection]
 bool kpTextSelection::contains (const QPoint &point) const
 {
     return boundingRect ().contains (point);
 }
 
 
 // public
 bool kpTextSelection::pointIsInTextBorderArea (const QPoint &point) const
 {
     return (boundingRect ().contains (point) && !pointIsInTextArea (point));
 }
 
 // public
 bool kpTextSelection::pointIsInTextArea (const QPoint &point) const
 {
     return textAreaRect ().contains (point);
 }
 
 
 // public virtual [kpAbstractSelection]
 bool kpTextSelection::hasContent () const
 {
     return !d->textLines.isEmpty ();
 }
 
 // public virtual [kpAbstractSelection]
 void kpTextSelection::deleteContent ()
 {
     if (!hasContent ()) {
         return;
     }
 
     setTextLines (QList <QString> ());
 }
 
 
 // public
 QList <QString> kpTextSelection::textLines () const
 {
     return d->textLines;
 }
 
 // public
 void kpTextSelection::setTextLines (const QList <QString> &textLines_)
 {
     d->textLines = textLines_;
 
     Q_EMIT changed (boundingRect ());
 }
 
 //--------------------------------------------------------------------------------
 
 // public static
 QString kpTextSelection::textForTextLines(const QList<QString> &textLines)
 {
     if (textLines.isEmpty ())
       return QString();
 
     QString bigString = textLines[0];
 
     for (int i = 1; i < textLines.count(); i++)
     {
         bigString += QLatin1String("\n");
         bigString += textLines[i];
     }
 
     return bigString;
 }
 
 //--------------------------------------------------------------------------------
 
 // public
 QString kpTextSelection::text () const
 {
     return kpTextSelection::textForTextLines (d->textLines);
 }
 
 
 // public
 kpTextStyle kpTextSelection::textStyle () const
 {
     return d->textStyle;
 }
 
 // public
 void kpTextSelection::setTextStyle (const kpTextStyle &textStyle)
 {
     d->textStyle = textStyle;
 
     Q_EMIT changed (boundingRect ());
 }
 
 kpPreeditText kpTextSelection::preeditText () const
 {
     return d->preeditText;
 }
 
 void kpTextSelection::setPreeditText (const kpPreeditText &preeditText)
 {
     d->preeditText = preeditText;
     Q_EMIT changed (boundingRect ());
 }
 
 #include "moc_kpTextSelection.cpp"