As-gui Sources / file comparison
comparison: as_table.cpp
as_table.cpp
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| 1 // | |
| 2 // OSSP asgui - Accounting system graphical user interface | |
| 3 // Copyright (c) 2002-2004 The OSSP Project (http://www.ossp.org/) | |
| 4 // Copyright (c) 2002-2004 Ralf S. Engelschall <rse@engelschall.com> | |
| 5 // Copyright (c) 2002-2004 Michael Schloh von Bennewitz <michael@schloh.com> | |
| 6 // Copyright (c) 2002-2004 Cable & Wireless Telecommunications Services GmbH | |
| 7 // | |
| 8 // This file is part of OSSP asgui, an accounting system graphical user | |
| 9 // interface which can be found at http://www.ossp.org/pkg/tool/asgui/. | |
| 10 // | |
| 11 // Permission to use, copy, modify, and distribute this software for | |
| 12 // any purpose with or without fee is hereby granted, provided that | |
| 13 // the above copyright notice and this permission notice appear in all | |
| 14 // copies. | |
| 15 // | |
| 16 // THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED | |
| 17 // WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF | |
| 18 // MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. | |
| 19 // IN NO EVENT SHALL THE AUTHORS AND COPYRIGHT HOLDERS AND THEIR | |
| 20 // CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | |
| 21 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT | |
| 22 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF | |
| 23 // USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND | |
| 24 // ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, | |
| 25 // OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT | |
| 26 // OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | |
| 27 // SUCH DAMAGE. | |
| 28 // | |
| 29 // as_table.cpp: ISO C++ implementation | |
| 30 // | |
| 31 | |
| 32 #include <qheader.h> | |
| 33 | |
| 34 #include "as_const.h" | |
| 35 #include "as_table.h" | |
| 36 | |
| 37 | |
| 38 // Implements an event filter for catching header double click events | |
| 39 bool TiTable::eventFilter(QObject *pObject, QEvent *pEvent) | |
| 40 { | |
| 41 if (pObject == horizontalHeader() && pEvent->type() == QEvent::MouseButtonDblClick) | |
| 42 return true; | |
| 43 if (pEvent->type() == QEvent::MouseButtonPress && // Ignore mid, right clicks | |
| 44 ((QMouseEvent *)pEvent)->button() == QMouseEvent::RightButton || | |
| 45 ((QMouseEvent *)pEvent)->button() == QMouseEvent::MidButton) | |
| 46 return true; | |
| 47 else if (pEvent->type() == QEvent::KeyPress) { | |
| 48 if (((QKeyEvent *)pEvent)->key() == Qt::Key_Tab) { // Handle tab key | |
| 49 if (this->getEdition() >= 0) { | |
| 50 int nIter = 1; // Logic to skip invisible or read only columns | |
| 51 while (columnWidth((currentColumn() + nIter) % TITRAQ_IDXTAIL) <= 0 | |
| 52 || isColumnReadOnly((currentColumn() + nIter) % TITRAQ_IDXTAIL)) | |
| 53 nIter++; | |
| 54 | |
| 55 // Advance the column or both row and column possibly | |
| 56 int nColadvance = ((currentColumn() + nIter) % TITRAQ_IDXTAIL); | |
| 57 if ((currentColumn() + nIter) >= TITRAQ_IDXTAIL) { | |
| 58 this->clearSelection(true); | |
| 59 this->setCurrentCell(currentRow() + 1, nColadvance); | |
| 60 // this->repaint(false); // Really necessary? | |
| 61 } | |
| 62 else | |
| 63 this->setCurrentCell(currentRow(), nColadvance); | |
| 64 this->setReadOnly(false); | |
| 65 this->editCell(currentRow(), currentColumn()); | |
| 66 this->setEdition(currentColumn()); | |
| 67 } | |
| 68 return true; // Handle the tab key event and cancel its progress | |
| 69 } | |
| 70 else if (((QKeyEvent *)pEvent)->key() == Qt::Key_Backtab) { // Handle shift tab key | |
| 71 if (this->getEdition() >= 0) { | |
| 72 int nIter = 1; // Logic to skip invisible or read only columns | |
| 73 while (columnWidth((currentColumn() - nIter + TITRAQ_IDXTAIL) % TITRAQ_IDXTAIL) <= 0 | |
| 74 || isColumnReadOnly((currentColumn() - nIter + TITRAQ_IDXTAIL) % TITRAQ_IDXTAIL)) | |
| 75 nIter++; | |
| 76 | |
| 77 // Advance the column or both row and column possibly | |
| 78 int nColadvance = (currentColumn() - nIter + TITRAQ_IDXTAIL) % TITRAQ_IDXTAIL; | |
| 79 if ((currentColumn() - nIter) < 0) { | |
| 80 this->clearSelection(true); | |
| 81 this->setCurrentCell(currentRow() - 1, nColadvance); | |
| 82 // this->repaint(false); // Really necessary? | |
| 83 } | |
| 84 else | |
| 85 this->setCurrentCell(currentRow(), nColadvance); | |
| 86 this->setReadOnly(false); | |
| 87 this->editCell(currentRow(), currentColumn()); | |
| 88 this->setEdition(currentColumn()); | |
| 89 } | |
| 90 return true; // Handle the shift tab key event and cancel its progress | |
| 91 } | |
| 92 else if (((QKeyEvent *)pEvent)->key() == Qt::Key_Return && this->getEdition() >= 0) { // Return key | |
| 93 this->endEdit(currEditRow(), currEditCol(), true, false); | |
| 94 this->setEdition(); // Reset edition | |
| 95 return true; // Cancel progress | |
| 96 } | |
| 97 else if (((QKeyEvent *)pEvent)->key() == Qt::Key_Enter && this->getEdition() >= 0) { // Enter key | |
| 98 this->endEdit(currEditRow(), currEditCol(), true, false); | |
| 99 this->setEdition(); // Reset edition | |
| 100 return true; // Cancel progress | |
| 101 } | |
| 102 else if (((QKeyEvent *)pEvent)->key() == Qt::Key_Return) { // Return key without edition | |
| 103 this->setReadOnly(false); // Allow edition | |
| 104 this->editCell(currentRow(), currentColumn()); // Begin edition | |
| 105 this->setEdition(currentColumn()); // Store edition state | |
| 106 return true; // Cancel further progress | |
| 107 } | |
| 108 else if (((QKeyEvent *)pEvent)->key() == Qt::Key_Enter) { // Enter key without edition | |
| 109 this->setReadOnly(false); // Allow edition | |
| 110 this->editCell(currentRow(), currentColumn()); // Begin edition | |
| 111 this->setEdition(currentColumn()); // Store edition state | |
| 112 return true; // Cancel further progress | |
| 113 } | |
| 114 else if (((QKeyEvent *)pEvent)->key() == Qt::Key_Escape) // Handle escape key | |
| 115 this->setEdition(); | |
| 116 else if (((QKeyEvent *)pEvent)->key() == Qt::Key_Up && this->getEdition() >= 0) // Handle up key | |
| 117 return true; // Capture | |
| 118 else if (((QKeyEvent *)pEvent)->key() == Qt::Key_Down && this->getEdition() >= 0) // Handle down key | |
| 119 return true; // Capture | |
| 120 | |
| 121 // Forward incompletely handled key events | |
| 122 return QTable::eventFilter(pObject, pEvent); | |
| 123 } | |
| 124 else // Default behaviour is to pass the event onwards | |
| 125 return QTable::eventFilter(pObject, pEvent); | |
| 126 } | |
| 127 | |
| 128 // Overridden member hack to allow externally connected control | |
| 129 // widgets to influence dirty or clean state of table data | |
| 130 void TiTable::setText(int nRow, int nCol, const QString &nText) | |
| 131 { | |
| 132 if (this->numRows() > 0) { | |
| 133 // If a cell was edited, emit a signal indicating so | |
| 134 // We can't rely on valueChanged for unknown reasons | |
| 135 if (nText != this->text(nRow, nCol) && nCol != TITRAQ_IDXLINE) | |
| 136 emit textEdited(nRow, nCol); | |
| 137 | |
| 138 QTable::setText(nRow, nCol, nText); | |
| 139 } | |
| 140 } | |
| 141 | |
| 142 // Overridden member hack to allow externally connected control | |
| 143 // widgets to influence dirty or clean state of table data | |
| 144 void TiTable::sortColumn(int nCol, bool bAscend, bool bWhole) | |
| 145 { | |
| 146 // Guard against a repeat sort behaviour | |
| 147 if (nCol == this->getSortcol() && bAscend == this->getSortdir()) | |
| 148 this->setSortdir(!bAscend); | |
| 149 else | |
| 150 this->setSortdir(bAscend); | |
| 151 | |
| 152 this->setSortcol(nCol); | |
| 153 QTable::sortColumn(nCol, this->getSortdir(), true); | |
| 154 | |
| 155 // // Announce sorting policy with multiple selections | |
| 156 // QTableSelection Testsel = this->selection(this->currentSelection()); | |
| 157 // if (Testsel.topRow() != Testsel.bottomRow()) | |
| 158 // m_pStatbar->message(trUtf8("Multiple selections dropped when sorting"), 4000); | |
| 159 | |
| 160 // Move and display the selection highlight | |
| 161 this->removeSelection(this->currentSelection()); | |
| 162 this->selectRow(this->currentRow()); | |
| 163 this->ensureCellVisible(this->currentRow(), 0); | |
| 164 | |
| 165 // Write nonsaving line numbers for all rows | |
| 166 for (int nIter = this->numRows() - 1; nIter >= 0; nIter--) | |
| 167 this->setText(nIter, TITRAQ_IDXLINE, QString::number(nIter).rightJustify(4, QChar('0'))); | |
| 168 } | |
| 169 | |
| 170 // Overriden member to render edge rows differently according to a sort key | |
| 171 void TiTable::paintCell(QPainter *pPainter, int nRow, int nCol, const QRect &Recto, bool bSelect, const QColorGroup &Colgroup) | |
| 172 { | |
| 173 QColorGroup Cgroup(Colgroup); | |
| 174 int nRed, nGreen, nBlue; | |
| 175 | |
| 176 nRed = m_pTiprefs->getNumber(TITRAQ_PREFLIGHTRED, TITRAQ_DEFLIGHTRED); | |
| 177 nGreen = m_pTiprefs->getNumber(TITRAQ_PREFLIGHTGREEN, TITRAQ_DEFLIGHTGREEN); | |
| 178 nBlue = m_pTiprefs->getNumber(TITRAQ_PREFLIGHTBLUE, TITRAQ_DEFLIGHTBLUE); | |
| 179 QColor Bright = QColor(nRed, nGreen, nBlue); | |
| 180 nRed = m_pTiprefs->getNumber(TITRAQ_PREFDARKRED, TITRAQ_DEFDARKRED); | |
| 181 nGreen = m_pTiprefs->getNumber(TITRAQ_PREFDARKGREEN, TITRAQ_DEFDARKGREEN); | |
| 182 nBlue = m_pTiprefs->getNumber(TITRAQ_PREFDARKBLUE, TITRAQ_DEFDARKBLUE); | |
| 183 QColor Dark = QColor(nRed, nGreen, nBlue); | |
| 184 | |
| 185 // Alternate color for nonmatching sort keys | |
| 186 QString Cur = this->text(nRow, this->getSortcol()); | |
| 187 QString Las = this->text(nRow - 1, this->getSortcol()); | |
| 188 | |
| 189 // A nice cascade of conditions providing a linewise base color test and set | |
| 190 // The algorythm: | |
| 191 // 1 Determine if the current row's index key differs from the former one | |
| 192 // 2a If they are the same, then current row should have the same color | |
| 193 // 2b If they are different, then current row should have an alt color | |
| 194 // 3 Store information about which color we chose for the current row | |
| 195 if (!Cur.isNull() && !Las.isNull() && Cur == Las) { // Set the base color conditionally | |
| 196 if (this->text(nRow - 1, TITRAQ_IDXSTATUS).at(TITRAQ_IDXSTATCOLOR) == QChar(TITRAQ_BRIGHT)) { | |
| 197 Cgroup.setColor(QColorGroup::Base, Bright); // Bright | |
| 198 if (this->text(nRow, TITRAQ_IDXSTATUS).at(TITRAQ_IDXSTATCOLOR) != QChar(TITRAQ_BRIGHT)) | |
| 199 this->setText(nRow, TITRAQ_IDXSTATUS, this->text(nRow, TITRAQ_IDXSTATUS).replace(TITRAQ_IDXSTATCOLOR, sizeof(char), QChar(TITRAQ_BRIGHT))); | |
| 200 } | |
| 201 else { | |
| 202 Cgroup.setColor(QColorGroup::Base, Dark); // Dark | |
| 203 if (this->text(nRow, TITRAQ_IDXSTATUS).at(TITRAQ_IDXSTATCOLOR) != QChar(TITRAQ_DARK)) | |
| 204 this->setText(nRow, TITRAQ_IDXSTATUS, this->text(nRow, TITRAQ_IDXSTATUS).replace(TITRAQ_IDXSTATCOLOR, sizeof(char), QChar(TITRAQ_DARK))); | |
| 205 } | |
| 206 } | |
| 207 else { | |
| 208 if (this->text(nRow - 1, TITRAQ_IDXSTATUS).at(TITRAQ_IDXSTATCOLOR) == QChar(TITRAQ_BRIGHT)) { | |
| 209 Cgroup.setColor(QColorGroup::Base, Dark); // Dark | |
| 210 if (this->text(nRow, TITRAQ_IDXSTATUS).at(TITRAQ_IDXSTATCOLOR) != QChar(TITRAQ_DARK)) | |
| 211 this->setText(nRow, TITRAQ_IDXSTATUS, this->text(nRow, TITRAQ_IDXSTATUS).replace(TITRAQ_IDXSTATCOLOR, sizeof(char), QChar(TITRAQ_DARK))); | |
| 212 } | |
| 213 else { | |
| 214 Cgroup.setColor(QColorGroup::Base, Bright); // Bright | |
| 215 if (this->text(nRow, TITRAQ_IDXSTATUS).at(TITRAQ_IDXSTATCOLOR) != QChar(TITRAQ_BRIGHT)) | |
| 216 this->setText(nRow, TITRAQ_IDXSTATUS, this->text(nRow, TITRAQ_IDXSTATUS).replace(TITRAQ_IDXSTATCOLOR, sizeof(char), QChar(TITRAQ_BRIGHT))); | |
| 217 } | |
| 218 } | |
| 219 | |
| 220 QTable::paintCell(pPainter, nRow, nCol, Recto, bSelect, Cgroup); | |
| 221 }; | |
| 222 | |
| 223 // Blah | |
| 224 void TiTable::activateNextCell(void) | |
| 225 { | |
| 226 int nIter = 1; // Logic to skip invisible or read only columns | |
| 227 while (columnWidth((currentColumn() + nIter) % TITRAQ_IDXTAIL) <= 0 | |
| 228 || isColumnReadOnly((currentColumn() + nIter) % TITRAQ_IDXTAIL)) | |
| 229 nIter++; | |
| 230 | |
| 231 // Advance the column or both row and column possibly | |
| 232 int nColadvance = ((currentColumn() + nIter) % TITRAQ_IDXTAIL); | |
| 233 if ((currentColumn() + nIter) >= TITRAQ_IDXTAIL) | |
| 234 this->setCurrentCell(currentRow() + 1, nColadvance); | |
| 235 else | |
| 236 this->setCurrentCell(currentRow(), nColadvance); | |
| 237 this->setReadOnly(false); | |
| 238 this->editCell(currentRow(), currentColumn()); | |
| 239 this->setEdition(currentColumn()); | |
| 240 } | |
| 241 | |
| 242 // Overriden member to properly handle read only attribute after edition | |
| 243 void TiTable::endEdit(int nRow, int nCol, bool bAccept, bool bReplace) | |
| 244 { | |
| 245 QTable::endEdit(nRow, nCol, bAccept, bReplace); | |
| 246 | |
| 247 // Table read only attribute must be set to return to the normal | |
| 248 // row highlight and selection behaviour of AS. The reason it was | |
| 249 // reset in inplaceEdit() was to allow editing in the first place. | |
| 250 this->setReadOnly(true); | |
| 251 } |
