michael@1: //
michael@1: //  OSSP asgui - Accounting system graphical user interface
michael@12: //  Copyright (c) 2002-2009 The OSSP Project (http://www.ossp.org/)
michael@12: //  Copyright (c) 2002-2009 Ralf S. Engelschall <rse@engelschall.com>
michael@12: //  Copyright (c) 2002-2009 Michael Schloh von Bennewitz <michael@schloh.com>
michael@12: //  Copyright (c) 2002-2009 Cable & Wireless Telecommunications Services GmbH
michael@1: //
michael@1: //  This file is part of OSSP asgui, an accounting system graphical user
michael@3: //  interface which can be found at http://asgui.europalab.com/.
michael@1: //
michael@1: //  Permission to use, copy, modify, and distribute this software for
michael@1: //  any purpose with or without fee is hereby granted, provided that
michael@1: //  the above copyright notice and this permission notice appear in all
michael@1: //  copies.
michael@1: //
michael@1: //  THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
michael@1: //  WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
michael@1: //  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
michael@1: //  IN NO EVENT SHALL THE AUTHORS AND COPYRIGHT HOLDERS AND THEIR
michael@1: //  CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
michael@1: //  SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
michael@1: //  LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
michael@1: //  USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
michael@1: //  ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
michael@1: //  OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
michael@1: //  OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
michael@1: //  SUCH DAMAGE.
michael@1: //
michael@1: //  as_table.cpp: ISO C++ implementation
michael@1: //
michael@1: 
michael@3: #include <q3header.h>
michael@3: 
michael@3: //Added by qt3to4:
michael@3: #include <QEvent>
michael@3: #include <QMouseEvent>
michael@3: #include <QKeyEvent>
michael@1: 
michael@1: #include "as_const.h"
michael@1: #include "as_table.h"
michael@1: 
michael@1: 
michael@1: // Implements an event filter for catching header double click events
michael@1: bool TiTable::eventFilter(QObject *pObject, QEvent *pEvent)
michael@1: {
michael@1:     if (pObject == horizontalHeader() && pEvent->type() == QEvent::MouseButtonDblClick)
michael@1:         return true;
michael@1:     if (pEvent->type() == QEvent::MouseButtonPress &&   // Ignore mid, right clicks
michael@3:         ((QMouseEvent *)pEvent)->button() == Qt::RightButton ||
michael@3:         ((QMouseEvent *)pEvent)->button() == Qt::MidButton)
michael@1:         return true;
michael@1:     else if (pEvent->type() == QEvent::KeyPress) {
michael@1:         if (((QKeyEvent *)pEvent)->key() == Qt::Key_Tab) { // Handle tab key
michael@1:             if (this->getEdition() >= 0) {
michael@1:                 int nIter = 1; // Logic to skip invisible or read only columns
michael@1:                 while (columnWidth((currentColumn() + nIter) % TITRAQ_IDXTAIL) <= 0
michael@1:                     || isColumnReadOnly((currentColumn() + nIter) % TITRAQ_IDXTAIL))
michael@1:                     nIter++;
michael@1: 
michael@1:                 // Advance the column or both row and column possibly
michael@1:                 int nColadvance = ((currentColumn() + nIter) % TITRAQ_IDXTAIL);
michael@1:                 if ((currentColumn() + nIter) >= TITRAQ_IDXTAIL) {
michael@1:                     this->clearSelection(true);
michael@1:                     this->setCurrentCell(currentRow() + 1, nColadvance);
michael@1: //                    this->repaint(false);   // Really necessary?
michael@1:                 }
michael@1:                 else
michael@1:                     this->setCurrentCell(currentRow(), nColadvance);
michael@1:                 this->setReadOnly(false);
michael@1:                 this->editCell(currentRow(), currentColumn());
michael@1:                 this->setEdition(currentColumn());
michael@1:             }
michael@1:             return true; // Handle the tab key event and cancel its progress
michael@1:         }
michael@1:         else if (((QKeyEvent *)pEvent)->key() == Qt::Key_Backtab) { // Handle shift tab key
michael@1:             if (this->getEdition() >= 0) {
michael@1:                 int nIter = 1; // Logic to skip invisible or read only columns
michael@1:                 while (columnWidth((currentColumn() - nIter + TITRAQ_IDXTAIL) % TITRAQ_IDXTAIL) <= 0
michael@1:                     || isColumnReadOnly((currentColumn() - nIter + TITRAQ_IDXTAIL) % TITRAQ_IDXTAIL))
michael@1:                     nIter++;
michael@1: 
michael@1:                 // Advance the column or both row and column possibly
michael@1:                 int nColadvance = (currentColumn() - nIter + TITRAQ_IDXTAIL) % TITRAQ_IDXTAIL;
michael@1:                 if ((currentColumn() - nIter) < 0) {
michael@1:                     this->clearSelection(true);
michael@1:                     this->setCurrentCell(currentRow() - 1, nColadvance);
michael@1: //                    this->repaint(false);   // Really necessary?
michael@1:                 }
michael@1:                 else
michael@1:                     this->setCurrentCell(currentRow(), nColadvance);
michael@1:                 this->setReadOnly(false);
michael@1:                 this->editCell(currentRow(), currentColumn());
michael@1:                 this->setEdition(currentColumn());
michael@1:             }
michael@1:             return true; // Handle the shift tab key event and cancel its progress
michael@1:         }
michael@1:         else if (((QKeyEvent *)pEvent)->key() == Qt::Key_Return && this->getEdition() >= 0) { // Return key
michael@1:             this->endEdit(currEditRow(), currEditCol(), true, false);
michael@1:             this->setEdition();                             // Reset edition
michael@1:             return true;                                    // Cancel progress
michael@1:         }
michael@1:         else if (((QKeyEvent *)pEvent)->key() == Qt::Key_Enter && this->getEdition() >= 0) { // Enter key
michael@1:             this->endEdit(currEditRow(), currEditCol(), true, false);
michael@1:             this->setEdition();                             // Reset edition
michael@1:             return true;                                    // Cancel progress
michael@1:         }
michael@1:         else if (((QKeyEvent *)pEvent)->key() == Qt::Key_Return) { // Return key without edition
michael@1:             this->setReadOnly(false);                       // Allow edition
michael@1:             this->editCell(currentRow(), currentColumn());  // Begin edition
michael@1:             this->setEdition(currentColumn());              // Store edition state
michael@1:             return true;                                    // Cancel further progress
michael@1:         }
michael@1:         else if (((QKeyEvent *)pEvent)->key() == Qt::Key_Enter) { // Enter key without edition
michael@1:             this->setReadOnly(false);                       // Allow edition
michael@1:             this->editCell(currentRow(), currentColumn());  // Begin edition
michael@1:             this->setEdition(currentColumn());              // Store edition state
michael@1:             return true;                                    // Cancel further progress
michael@1:         }
michael@1:         else if (((QKeyEvent *)pEvent)->key() == Qt::Key_Escape)    // Handle escape key
michael@1:             this->setEdition();
michael@1:         else if (((QKeyEvent *)pEvent)->key() == Qt::Key_Up && this->getEdition() >= 0) // Handle up key
michael@1:             return true;                                            // Capture
michael@1:         else if (((QKeyEvent *)pEvent)->key() == Qt::Key_Down && this->getEdition() >= 0) // Handle down key
michael@1:             return true;                                            // Capture
michael@1: 
michael@1:         // Forward incompletely handled key events
michael@3:         return Q3Table::eventFilter(pObject, pEvent);
michael@1:     }
michael@1:     else // Default behaviour is to pass the event onwards
michael@3:         return Q3Table::eventFilter(pObject, pEvent);
michael@1: }
michael@1: 
michael@1: // Overridden member hack to allow externally connected control
michael@1: // widgets to influence dirty or clean state of table data
michael@1: void TiTable::setText(int nRow, int nCol, const QString &nText)
michael@1: {
michael@1:     if (this->numRows() > 0) {
michael@1:         // If a cell was edited, emit a signal indicating so
michael@1:         // We can't rely on valueChanged for unknown reasons
michael@1:         if (nText != this->text(nRow, nCol) && nCol != TITRAQ_IDXLINE)
michael@1:             emit textEdited(nRow, nCol);
michael@1: 
michael@3:         Q3Table::setText(nRow, nCol, nText);
michael@1:     }
michael@1: }
michael@1: 
michael@1: // Overridden member hack to allow externally connected control
michael@1: // widgets to influence dirty or clean state of table data
michael@1: void TiTable::sortColumn(int nCol, bool bAscend, bool bWhole)
michael@1: {
michael@1:     // Guard against a repeat sort behaviour
michael@1:     if (nCol == this->getSortcol() && bAscend == this->getSortdir())
michael@1:         this->setSortdir(!bAscend);
michael@1:     else
michael@1:         this->setSortdir(bAscend);
michael@1: 
michael@1:     this->setSortcol(nCol);
michael@3:     Q3Table::sortColumn(nCol, this->getSortdir(), true);
michael@1: 
michael@1: //    // Announce sorting policy with multiple selections
michael@1: //    QTableSelection Testsel = this->selection(this->currentSelection());
michael@1: //    if (Testsel.topRow() != Testsel.bottomRow())
michael@1: //        m_pStatbar->message(trUtf8("Multiple selections dropped when sorting"), 4000);
michael@1: 
michael@1:     // Move and display the selection highlight
michael@1:     this->removeSelection(this->currentSelection());
michael@1:     this->selectRow(this->currentRow());
michael@1:     this->ensureCellVisible(this->currentRow(), 0);
michael@1: 
michael@1:     // Write nonsaving line numbers for all rows
michael@1:     for (int nIter = this->numRows() - 1; nIter >= 0; nIter--)
michael@1:         this->setText(nIter, TITRAQ_IDXLINE, QString::number(nIter).rightJustify(4, QChar('0')));
michael@1: }
michael@1: 
michael@1: // Overriden member to render edge rows differently according to a sort key
michael@1: void TiTable::paintCell(QPainter *pPainter, int nRow, int nCol, const QRect &Recto, bool bSelect, const QColorGroup &Colgroup)
michael@1: {
michael@1:     QColorGroup Cgroup(Colgroup);
michael@1:     int nRed, nGreen, nBlue;
michael@1: 
michael@1:     nRed = m_pTiprefs->getNumber(TITRAQ_PREFLIGHTRED, TITRAQ_DEFLIGHTRED);
michael@1:     nGreen = m_pTiprefs->getNumber(TITRAQ_PREFLIGHTGREEN, TITRAQ_DEFLIGHTGREEN);
michael@1:     nBlue = m_pTiprefs->getNumber(TITRAQ_PREFLIGHTBLUE, TITRAQ_DEFLIGHTBLUE);
michael@1:     QColor Bright = QColor(nRed, nGreen, nBlue);
michael@1:     nRed = m_pTiprefs->getNumber(TITRAQ_PREFDARKRED, TITRAQ_DEFDARKRED);
michael@1:     nGreen = m_pTiprefs->getNumber(TITRAQ_PREFDARKGREEN, TITRAQ_DEFDARKGREEN);
michael@1:     nBlue = m_pTiprefs->getNumber(TITRAQ_PREFDARKBLUE, TITRAQ_DEFDARKBLUE);
michael@1:     QColor Dark = QColor(nRed, nGreen, nBlue);
michael@1: 
michael@1:     // Alternate color for nonmatching sort keys
michael@1:     QString Cur = this->text(nRow, this->getSortcol());
michael@1:     QString Las = this->text(nRow - 1, this->getSortcol());
michael@1: 
michael@1:     // A nice cascade of conditions providing a linewise base color test and set
michael@1:     // The algorythm:
michael@1:     //   1  Determine if the current row's index key differs from the former one
michael@1:     //   2a If they are the same, then current row should have the same color
michael@1:     //   2b If they are different, then current row should have an alt color
michael@1:     //   3  Store information about which color we chose for the current row
michael@1:     if (!Cur.isNull() && !Las.isNull() && Cur == Las) { // Set the base color conditionally
michael@1:         if (this->text(nRow - 1, TITRAQ_IDXSTATUS).at(TITRAQ_IDXSTATCOLOR) == QChar(TITRAQ_BRIGHT)) {
michael@1:             Cgroup.setColor(QColorGroup::Base, Bright); // Bright
michael@1:             if (this->text(nRow, TITRAQ_IDXSTATUS).at(TITRAQ_IDXSTATCOLOR) != QChar(TITRAQ_BRIGHT))
michael@1:                 this->setText(nRow, TITRAQ_IDXSTATUS, this->text(nRow, TITRAQ_IDXSTATUS).replace(TITRAQ_IDXSTATCOLOR, sizeof(char), QChar(TITRAQ_BRIGHT)));
michael@1:         }
michael@1:         else {
michael@1:             Cgroup.setColor(QColorGroup::Base, Dark);   // Dark
michael@1:             if (this->text(nRow, TITRAQ_IDXSTATUS).at(TITRAQ_IDXSTATCOLOR) != QChar(TITRAQ_DARK))
michael@1:                 this->setText(nRow, TITRAQ_IDXSTATUS, this->text(nRow, TITRAQ_IDXSTATUS).replace(TITRAQ_IDXSTATCOLOR, sizeof(char), QChar(TITRAQ_DARK)));
michael@1:         }
michael@1:     }
michael@1:     else {
michael@1:         if (this->text(nRow - 1, TITRAQ_IDXSTATUS).at(TITRAQ_IDXSTATCOLOR) == QChar(TITRAQ_BRIGHT)) {
michael@1:             Cgroup.setColor(QColorGroup::Base, Dark);   // Dark
michael@1:             if (this->text(nRow, TITRAQ_IDXSTATUS).at(TITRAQ_IDXSTATCOLOR) != QChar(TITRAQ_DARK))
michael@1:                 this->setText(nRow, TITRAQ_IDXSTATUS, this->text(nRow, TITRAQ_IDXSTATUS).replace(TITRAQ_IDXSTATCOLOR, sizeof(char), QChar(TITRAQ_DARK)));
michael@1:         }
michael@1:         else {
michael@1:             Cgroup.setColor(QColorGroup::Base, Bright); // Bright
michael@1:             if (this->text(nRow, TITRAQ_IDXSTATUS).at(TITRAQ_IDXSTATCOLOR) != QChar(TITRAQ_BRIGHT))
michael@1:                 this->setText(nRow, TITRAQ_IDXSTATUS, this->text(nRow, TITRAQ_IDXSTATUS).replace(TITRAQ_IDXSTATCOLOR, sizeof(char), QChar(TITRAQ_BRIGHT)));
michael@1:         }
michael@1:     }
michael@1: 
michael@3:     Q3Table::paintCell(pPainter, nRow, nCol, Recto, bSelect, Cgroup);
michael@1: };
michael@1: 
michael@1: // Blah
michael@1: void TiTable::activateNextCell(void)
michael@1: {
michael@1:     int nIter = 1; // Logic to skip invisible or read only columns
michael@1:     while (columnWidth((currentColumn() + nIter) % TITRAQ_IDXTAIL) <= 0
michael@1:         || isColumnReadOnly((currentColumn() + nIter) % TITRAQ_IDXTAIL))
michael@1:         nIter++;
michael@1: 
michael@1:     // Advance the column or both row and column possibly
michael@1:     int nColadvance = ((currentColumn() + nIter) % TITRAQ_IDXTAIL);
michael@1:     if ((currentColumn() + nIter) >= TITRAQ_IDXTAIL)
michael@1:         this->setCurrentCell(currentRow() + 1, nColadvance);
michael@1:     else
michael@1:         this->setCurrentCell(currentRow(), nColadvance);
michael@1:     this->setReadOnly(false);
michael@1:     this->editCell(currentRow(), currentColumn());
michael@1:     this->setEdition(currentColumn());
michael@1: }
michael@1: 
michael@1: // Overriden member to properly handle read only attribute after edition
michael@1: void TiTable::endEdit(int nRow, int nCol, bool bAccept, bool bReplace)
michael@1: {
michael@3:     Q3Table::endEdit(nRow, nCol, bAccept, bReplace);
michael@1: 
michael@1:     // Table read only attribute must be set to return to the normal
michael@1:     // row highlight and selection behaviour of AS. The reason it was
michael@1:     // reset in inplaceEdit() was to allow editing in the first place.
michael@1:     this->setReadOnly(true);
michael@1: }