File indexing completed on 2024-05-12 07:58:27

 /*
     KBlackBox - A simple game inspired by an emacs module
 
     SPDX-FileCopyrightText: 2007 Nicolas Roffet <nicolas-kde@roffet.com>
 
     SPDX-License-Identifier: GPL-2.0-or-later
 */
 
 #include "kbbgraphicsitemcursor.h"
 
 
 
 //
 // Constructor / Destructor
 //
 
 KBBGraphicsItemCursor::KBBGraphicsItemCursor(KBBScalableGraphicWidget* parent, KBBThemeManager* themeManager) : KBBGraphicsItem(KBBScalableGraphicWidget::cursor, parent->scene(), themeManager)
 {
     setBoardSize(1,1);
 }
 
 
 
 //
 // Public
 //
 
 int KBBGraphicsItemCursor::borderPosition()
 {
     return m_borderPosition;
 }
 
 
 int KBBGraphicsItemCursor::boxPosition()
 {
     return m_boxPosition;
 }
 
 
 void KBBGraphicsItemCursor::moveDown()
 {
     if (m_borderPosition!=NO_POSITION) {
         if (m_borderPosition<m_columns) {
             m_boxPosition = m_borderPosition;
             m_borderPosition = NO_POSITION;
         } else if ((m_borderPosition>=m_columns) && (m_borderPosition<m_columns+m_rows-1))
             m_borderPosition++;
         else if ((m_borderPosition>=2*m_columns+m_rows+1) && (m_borderPosition<2*m_columns+2*m_rows))
             m_borderPosition--;
     } else if (m_boxPosition!=NO_POSITION) {
         if ((m_boxPosition+m_columns)<(m_columns*m_rows))
             m_boxPosition += m_columns;
         else {
             m_borderPosition = 2*m_columns+m_rows-(m_boxPosition+m_columns-m_columns*m_rows)-1;
             m_boxPosition = NO_POSITION;
         }
     }
     
     updatePositions();
 }
 
 
 void KBBGraphicsItemCursor::moveLeft()
 {
     if (m_borderPosition!=NO_POSITION) {
         if ((m_borderPosition>0) && (m_borderPosition<m_columns))
             m_borderPosition--;
         else if ((m_borderPosition>=m_columns) && (m_borderPosition<m_columns+m_rows)) {
             m_boxPosition = m_columns*(m_borderPosition-m_columns+1)-1;
             m_borderPosition = NO_POSITION;
         } else if ((m_borderPosition>=m_columns+m_rows) && (m_borderPosition<2*m_columns+m_rows-1))
             m_borderPosition++;
     } else if (m_boxPosition!=NO_POSITION) {
         if ((m_boxPosition % m_columns)!=0)
             m_boxPosition--;
         else {
             m_borderPosition = 2*m_columns + 2*m_rows - m_boxPosition/m_columns -1;
             m_boxPosition = NO_POSITION;
         }
     }
     
     updatePositions();
 }
 
 
 void KBBGraphicsItemCursor::moveRight()
 {
     if (m_borderPosition!=NO_POSITION) {
         if (m_borderPosition<m_columns-1)
             m_borderPosition++;
         else if ((m_borderPosition>=m_columns+m_rows+1) && (m_borderPosition<2*m_columns+m_rows))
             m_borderPosition--;
         else if (m_borderPosition>=2*m_columns+m_rows) {
             m_boxPosition = m_columns*(2*m_columns+2*m_rows-m_borderPosition-1);
             m_borderPosition = NO_POSITION;
         }
     } else if (m_boxPosition!=NO_POSITION) {
         if (((m_boxPosition+1) % m_columns)!=0)
             m_boxPosition++;
         else {
             m_borderPosition = m_columns + m_boxPosition/m_columns;
             m_boxPosition = NO_POSITION;
         }
     }
     
     updatePositions();
 }
 
 
 void KBBGraphicsItemCursor::moveUp()
 {
     if (m_borderPosition!=NO_POSITION) {
         if ((m_borderPosition>=m_columns+1) && (m_borderPosition<m_columns+m_rows))
             m_borderPosition--;
         else if ((m_borderPosition>=m_columns+m_rows) && (m_borderPosition<2*m_columns+m_rows)) {
             m_boxPosition = m_columns*m_rows-(m_borderPosition-m_columns-m_rows)-1;
             m_borderPosition = NO_POSITION;
         } else if ((m_borderPosition>=2*m_columns+m_rows) && (m_borderPosition<2*m_columns+2*m_rows-1))
             m_borderPosition++;
     } else if (m_boxPosition!=NO_POSITION) {
         if ((m_boxPosition-m_columns)>=0)
             m_boxPosition -= m_columns;
         else {
             m_borderPosition = m_boxPosition;
             m_boxPosition = NO_POSITION;
         }
     }
     
     updatePositions();
 }
 
 
 void KBBGraphicsItemCursor::setBoardSize(const int columns, const int rows)
 {
     m_columns = columns;
     m_rows = rows;
     
     m_boxPosition = 0;
     m_borderPosition = NO_POSITION;
     
     updatePositions();
     hide();
 }
 
 
 void KBBGraphicsItemCursor::setBorderPosition(const int borderPosition)
 {
     if (borderPosition!=NO_POSITION) {
         m_borderPosition = borderPosition;
         m_boxPosition = NO_POSITION;
         
         const int b = KBBScalableGraphicWidget::BORDER_SIZE;
         const int r = KBBScalableGraphicWidget::RATIO;
         const int offset = 0;
         int x;
         int y;
         if (m_borderPosition<m_columns) {
             x = borderPosition*r + b;
             y = offset;
         } else if (borderPosition<m_columns + m_rows) {
             x = m_columns*r + b + b/2 - offset;
             y = (borderPosition - m_columns)*r + b;
         } else if (borderPosition<2*m_columns + m_rows) {
             x = (2*m_columns + m_rows - borderPosition)*r + b/2;
             y = m_rows*r + 3*b/2 - offset;
         } else {
             x = offset;
             y = (2*m_columns + 2*m_rows - borderPosition)*r + b/2;
         }
         setPos(x, y);
     }
 }
 
 
 void KBBGraphicsItemCursor::setBoxPosition(const int boxPosition)
 {
     if (boxPosition!=NO_POSITION) {
         m_borderPosition = NO_POSITION;
         m_boxPosition = boxPosition;
         
         setPos(KBBScalableGraphicWidget::BORDER_SIZE + KBBScalableGraphicWidget::RATIO*(m_boxPosition % m_columns), KBBScalableGraphicWidget::BORDER_SIZE + KBBScalableGraphicWidget::RATIO*(m_boxPosition / m_columns));
     }
 }
 
 
 //
 // Private
 //
 
 void KBBGraphicsItemCursor::updatePositions()
 {
     setBoxPosition(m_boxPosition);
     setBorderPosition(m_borderPosition);
     
     Q_EMIT cursorAtNewPosition(m_borderPosition);
 }
 
 #include "moc_kbbgraphicsitemcursor.cpp"