File indexing completed on 2024-05-12 16:36:01

 /* This file is part of the KDE project
    Copyright 2008 Stefan Nikolaus <stefan.nikolaus@kdemail.net>
 
    This library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Library General Public
    License as published by the Free Software Foundation; either
    version 2 of the License, or (at your option) any later version.
 
    This library 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
    Library General Public License for more details.
 
    You should have received a copy of the GNU Library General Public License
    along with this library; see the file COPYING.LIB.  If not, write to
    the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
    Boston, MA 02110-1301, USA.
 */
 
 #include "AbstractSelectionStrategy.h"
 
 #include "CellToolBase.h"
 #include "calligra_sheets_limits.h"
 #include "RowColumnFormat.h"
 #include "RowFormatStorage.h"
 #include "Selection.h"
 #include "Sheet.h"
 
 #include <KoCanvasBase.h>
 #include <KoSelection.h>
 #include <KoShapeManager.h>
 #include <KoViewConverter.h>
 
 using namespace Calligra::Sheets;
 
 class AbstractSelectionStrategy::Private
 {
 public:
     CellToolBase *cellTool;
     QPointF start;
 };
 
 AbstractSelectionStrategy::AbstractSelectionStrategy(CellToolBase *cellTool,
         const QPointF &documentPos, Qt::KeyboardModifiers modifiers)
         : KoInteractionStrategy(cellTool)
         , d(new Private)
 {
     Q_UNUSED(modifiers)
     d->cellTool = cellTool;
     d->start = documentPos;
 }
 
 AbstractSelectionStrategy::~AbstractSelectionStrategy()
 {
     delete d;
 }
 
 void AbstractSelectionStrategy::handleMouseMove(const QPointF& documentPos, Qt::KeyboardModifiers modifiers)
 {
     Q_UNUSED(modifiers)
     Selection *const selection = d->cellTool->selection();
     const QPointF position = documentPos - cellTool()->offset();
     // In which cell did the user click?
     qreal xpos;
     qreal ypos;
     int col = selection->activeSheet()->leftColumn(position.x(), xpos);
     int row = selection->activeSheet()->topRow(position.y(), ypos);
     // Check boundaries.
     if (col < 1 || col > KS_colMax || row < 1 || row > KS_rowMax) {
         debugSheetsUI << "col or row is out of range:" << "col:" << col << " row:" << row;
         return;
     }
     // Test whether mouse is over the Selection.handle
     if (hitTestSelectionSizeGrip(tool()->canvas(), selection, position)) {
         // If the cursor is over the handle, than it might be already on the next cell.
         // Recalculate the cell position!
         col = selection->activeSheet()->leftColumn(position.x() - tool()->canvas()->viewConverter()->viewToDocumentX(2.0), xpos);
         row = selection->activeSheet()->topRow(position.y() - tool()->canvas()->viewConverter()->viewToDocumentY(2.0), ypos);
     }
     // Update the selection.
     selection->update(QPoint(col, row));
     tool()->repaintDecorations();
 }
 
 KUndo2Command* AbstractSelectionStrategy::createCommand()
 {
     return 0;
 }
 
 void AbstractSelectionStrategy::finishInteraction(Qt::KeyboardModifiers modifiers)
 {
     Q_UNUSED(modifiers)
     tool()->repaintDecorations();
 }
 
 // static
 bool AbstractSelectionStrategy::hitTestSelectionSizeGrip(KoCanvasBase *canvas,
         Selection *selection,
         const QPointF &position)
 {
     if (selection->referenceSelectionMode() || !selection->isValid()) {
         return false;
     }
 
     // Define the (normal) selection size grip.
     const qreal pixelX = canvas->viewConverter()->viewToDocumentX(1);
     const qreal pixelY = canvas->viewConverter()->viewToDocumentY(1);
     const QRectF gripArea(-2 * pixelX, -2 * pixelY, 5 * pixelX, 5 * pixelY);
 
     Sheet *const sheet = selection->activeSheet();
 
     int column, row;
     if (selection->isColumnOrRowSelected()) {
         // complete rows/columns are selected, use the marker.
         const QPoint marker = selection->marker();
         column = marker.x();
         row = marker.y();
     } else {
         const QRect range = selection->lastRange();
         column = range.right();
         row = range.bottom();
     }
 
     const double xpos = sheet->columnPosition(column);
     const double ypos = sheet->rowPosition(row);
     const double width = sheet->columnFormat(column)->width();
     const double height = sheet->rowFormats()->rowHeight(row);
     return gripArea.translated(xpos + width, ypos + height).contains(position);
 }
 
 // static
 bool AbstractSelectionStrategy::hitTestReferenceSizeGrip(KoCanvasBase *canvas,
         Selection *selection,
         const QPointF &position)
 {
     if (!selection->referenceSelectionMode() || !selection->isValid()) {
         return false;
     }
 
     // Define the reference selection size grip.
     const qreal pixelX = canvas->viewConverter()->viewToDocumentX(1);
     const qreal pixelY = canvas->viewConverter()->viewToDocumentY(1);
     const QRectF gripArea(-3 * pixelX, -3 * pixelY, 6 * pixelX, 6 * pixelY);
 
     // Iterate over the referenced ranges.
     const Region::ConstIterator end(selection->constEnd());
     for (Region::ConstIterator it(selection->constBegin()); it != end; ++it) {
         Sheet *const sheet = (*it)->sheet();
         // Only check the ranges on the active sheet.
         if (sheet != selection->activeSheet()) {
             continue;
         }
         const QRect range = (*it)->rect();
         const QRectF area = sheet->cellCoordinatesToDocument(range);
         const QPointF corner(area.bottomRight());
         if (gripArea.translated(corner).contains(position)) {
             return true;
         }
     }
     return false;
 }
 
 CellToolBase *AbstractSelectionStrategy::cellTool() const
 {
     return d->cellTool;
 }
 
 Selection* AbstractSelectionStrategy::selection() const
 {
     return d->cellTool->selection();
 }
 
 const QPointF& AbstractSelectionStrategy::startPosition() const
 {
     return d->start;
 }