]> git.lyx.org Git - lyx.git/blobdiff - src/frontends/qt4/GuiSelectionManager.cpp
* fix spelling in comments to please John.
[lyx.git] / src / frontends / qt4 / GuiSelectionManager.cpp
index 2333d3cc8fa9c54b33a69faf0bc5897debe9f32b..4d172bc35d890cb52de14e27d6ec9f50f9edcfaf 100644 (file)
  */
 
 #include <config.h>
+
 #include "GuiSelectionManager.h"
 
+#include "support/debug.h"
+
+#include <QKeyEvent>
+#include <QListView>
+#include <QPushButton>
+#include <QAbstractListModel>
+
+#ifdef KeyPress
+#undef KeyPress
+#endif
+
+#ifdef ControlModifier
+#undef ControlModifier
+#endif
+
 
 namespace lyx {
 namespace frontend {
 
 GuiSelectionManager::GuiSelectionManager(
-       QListView * avail, 
+       QAbstractItemView * avail,
        QListView * sel,
        QPushButton * add, 
        QPushButton * del, 
        QPushButton * up, 
        QPushButton * down,
-       QStringListModel * amod,
-       QStringListModel * smod)
+       QAbstractListModel * amod,
+       QAbstractListModel * smod)
 {
-availableLV = avail;
-selectedLV = sel;
-addPB = add;
-deletePB = del;
-upPB = up;
-downPB = down;
-availableModel = amod;
-selectedModel = smod;
-
-selectedLV->setModel(smod);
-availableLV->setModel(amod);
-
-connect(availableLV->selectionModel(),
-                               SIGNAL(currentChanged(const QModelIndex &, const QModelIndex &)),
-                                                        this, SLOT(availableChanged(const QModelIndex &, const QModelIndex &)));
-connect(selectedLV->selectionModel(),
-                               SIGNAL(currentChanged(const QModelIndex &, const QModelIndex &)),
-                                                        this, SLOT(selectedChanged(const QModelIndex &, const QModelIndex &)));
-connect(addPB, SIGNAL(clicked()), 
-                               this, SLOT(addPB_clicked()));
-connect(deletePB, SIGNAL(clicked()), 
-                               this, SLOT(deletePB_clicked()));
-connect(upPB, SIGNAL(clicked()), 
-                               this, SLOT(upPB_clicked()));
-connect(downPB, SIGNAL(clicked()), 
-                               this, SLOT(downPB_clicked()));
-connect(availableLV, SIGNAL(clicked(const QModelIndex &)), 
-                               this, SLOT(availableLV_clicked(const QModelIndex &)));
-connect(availableLV, SIGNAL(doubleClicked(const QModelIndex &)), 
-                               this, SLOT(availableLV_doubleClicked(const QModelIndex &)));
-connect(selectedLV, SIGNAL(clicked(const QModelIndex &)), 
-                               this, SLOT(selectedLV_clicked(const QModelIndex &)));
-
-availableLV->installEventFilter(this);
-selectedLV->installEventFilter(this);
+       availableLV = avail;
+       selectedLV = sel;
+       addPB = add;
+       deletePB = del;
+       upPB = up;
+       downPB = down;
+       availableModel = amod;
+       selectedModel = smod;
+       
+       selectedLV->setModel(smod);
+       availableLV->setModel(amod);
+       
+       connect(availableLV->selectionModel(),
+               SIGNAL(currentChanged(QModelIndex,QModelIndex)),
+               this, SLOT(availableChanged(QModelIndex, QModelIndex)));
+       connect(selectedLV->selectionModel(),
+               SIGNAL(currentChanged(QModelIndex, QModelIndex)),
+               this, SLOT(selectedChanged(QModelIndex, QModelIndex)));
+       connect(addPB, SIGNAL(clicked()), 
+               this, SLOT(addPB_clicked()));
+       connect(deletePB, SIGNAL(clicked()), 
+               this, SLOT(deletePB_clicked()));
+       connect(upPB, SIGNAL(clicked()), 
+               this, SLOT(upPB_clicked()));
+       connect(downPB, SIGNAL(clicked()), 
+               this, SLOT(downPB_clicked()));
+       connect(availableLV, SIGNAL(clicked(QModelIndex)), 
+               this, SLOT(availableLV_clicked(QModelIndex)));
+       connect(availableLV, SIGNAL(doubleClicked(QModelIndex)), 
+               this, SLOT(availableLV_doubleClicked(QModelIndex)));
+       connect(selectedLV, SIGNAL(clicked(QModelIndex)), 
+               this, SLOT(selectedLV_clicked(QModelIndex)));
+       
+       availableLV->installEventFilter(this);
+       selectedLV->installEventFilter(this);
 }
 
 
 void GuiSelectionManager::update()
 {
-int const arows = availableLV->model()->rowCount();
-QModelIndexList const availSels = 
+       updateAddPB();
+       updateDelPB();
+       updateDownPB();
+       updateUpPB();
+}
+
+
+void GuiSelectionManager::updateAddPB()
+{
+       int const arows = availableModel->rowCount();
+       QModelIndexList const availSels = 
                availableLV->selectionModel()->selectedIndexes();
-addPB->setEnabled(arows > 0 &&
+       addPB->setEnabled(arows > 0 &&
                !availSels.isEmpty() &&
                !isSelected(availSels.first()));
+}
+
 
-int const srows = selectedLV->model()->rowCount();
-QModelIndexList const selSels = 
+void GuiSelectionManager::updateDelPB()
+{
+       int const srows = selectedModel->rowCount();
+       if (srows == 0) {
+               deletePB->setEnabled(false);
+               return;
+       }
+       QModelIndexList const selSels = 
                selectedLV->selectionModel()->selectedIndexes();
-int const sel_nr =     selSels.empty() ? -1 : selSels.first().row();
-deletePB->setEnabled(sel_nr >= 0);
-upPB->setEnabled(sel_nr > 0);
-downPB->setEnabled(sel_nr >= 0 && sel_nr < srows - 1);
+       int const sel_nr =      selSels.empty() ? -1 : selSels.first().row();
+       deletePB->setEnabled(sel_nr >= 0);
+}
+
+
+void GuiSelectionManager::updateUpPB()
+{
+       int const srows = selectedModel->rowCount();
+       if (srows == 0) {
+               upPB->setEnabled(false);
+               return;
+       }
+       QModelIndexList const selSels = 
+                       selectedLV->selectionModel()->selectedIndexes();
+       int const sel_nr =      selSels.empty() ? -1 : selSels.first().row();
+       upPB->setEnabled(sel_nr > 0);
+}
+
+
+void GuiSelectionManager::updateDownPB()
+{
+       int const srows = selectedModel->rowCount();
+       if (srows == 0) {
+               downPB->setEnabled(false);
+               return;
+       }
+       QModelIndexList const selSels = 
+                       selectedLV->selectionModel()->selectedIndexes();
+       int const sel_nr =      selSels.empty() ? -1 : selSels.first().row();
+       downPB->setEnabled(sel_nr >= 0 && sel_nr < srows - 1);
 }
 
 
 bool GuiSelectionManager::isSelected(const QModelIndex & idx)
 {
-QString const str = idx.data().toString();
-return selectedModel->stringList().contains(str);
+       if (selectedModel->rowCount() == 0)
+               return false;
+       QVariant const & str = availableModel->data(idx, Qt::DisplayRole);
+       QModelIndexList qmil = 
+                       selectedModel->match(selectedModel->index(0), 
+                                            Qt::DisplayRole, str, 1,
+                                            Qt::MatchFlags(Qt::MatchExactly | Qt::MatchWrap));
+       return !qmil.empty();
 }
 
 
 void GuiSelectionManager::availableChanged(const QModelIndex & idx, const QModelIndex &)
 {
-if (!idx.isValid())
-       return;
-
-selectedHasFocus_ = false;
-updateHook();
+       if (!idx.isValid())
+               return;
+       
+       selectedHasFocus_ = false;
+       updateHook();
 }
 
 
 void GuiSelectionManager::selectedChanged(const QModelIndex & idx, const QModelIndex &)
 {
-if (!idx.isValid())
-       return;
-
-selectedHasFocus_ = true;
-updateHook();
+       if (!idx.isValid())
+               return;
+       
+       selectedHasFocus_ = true;
+       updateHook();
 }
 
 
-static QModelIndex getSelectedIndex(QListView * lv)
+bool GuiSelectionManager::insertRowToSelected(int i, 
+               QMap<int, QVariant> const & itemData)
 {
-QModelIndex retval = QModelIndex();
-QModelIndexList selIdx = 
-               lv->selectionModel()->selectedIndexes();
-if (!selIdx.empty())
-       retval = selIdx.first();
-return retval;
+       if (i <= -1 || i > selectedModel->rowCount())
+               return false;
+       if (!selectedModel->insertRow(i))
+               return false;
+       return selectedModel->setItemData(selectedModel->index(i), itemData);
 }
 
 
 void GuiSelectionManager::addPB_clicked()
 {
-QModelIndex const idxToAdd = getSelectedIndex(availableLV);
-if (!idxToAdd.isValid())
-       return;
-QModelIndex idx = selectedLV->currentIndex();
-
-QStringList keys = selectedModel->stringList();
-keys.append(idxToAdd.data().toString());
-selectedModel->setStringList(keys);
-selectionChanged(); //signal
-
-if (idx.isValid())
-       selectedLV->setCurrentIndex(idx);
-updateHook();
+       QModelIndexList selIdx =
+               availableLV->selectionModel()->selectedIndexes();
+       if (selIdx.isEmpty())
+               return;
+
+       QModelIndex const idxToAdd = selIdx.first();
+       QModelIndex const idx = selectedLV->currentIndex();
+       int const srows = selectedModel->rowCount();
+       
+       QMap<int, QVariant> qm = availableModel->itemData(idxToAdd);
+       insertRowToSelected(srows, qm);
+       
+       selectionChanged(); //signal
+
+       if (idx.isValid())
+               selectedLV->setCurrentIndex(idx);
+       
+       updateHook();
 }
 
 
 void GuiSelectionManager::deletePB_clicked()
 {
-QModelIndex idx = getSelectedIndex(selectedLV);
-if (!idx.isValid())
-       return;
-
-QStringList keys = selectedModel->stringList();
-keys.removeAt(idx.row());
-selectedModel->setStringList(keys);
-selectionChanged(); //signal
-
-int nrows = selectedLV->model()->rowCount();
-if (idx.row() == nrows) //was last item on list
-       idx = idx.sibling(idx.row() - 1, idx.column());
-
-if (nrows > 1)
-       selectedLV->setCurrentIndex(idx);
-else if (nrows == 1)
-       selectedLV->setCurrentIndex(selectedLV->model()->index(0,0));
-selectedHasFocus_ = (nrows > 0);
-updateHook();
+       QModelIndexList selIdx =
+               selectedLV->selectionModel()->selectedIndexes();
+       if (selIdx.isEmpty())
+               return;
+       QModelIndex idx = selIdx.first();
+       selectedModel->removeRow(idx.row());
+       selectionChanged(); //signal
+       
+       int nrows = selectedLV->model()->rowCount();
+       if (idx.row() == nrows) //was last item on list
+               idx = idx.sibling(idx.row() - 1, idx.column());
+       
+       if (nrows > 1)
+               selectedLV->setCurrentIndex(idx);
+       else if (nrows == 1)
+               selectedLV->setCurrentIndex(selectedLV->model()->index(0, 0));
+       selectedHasFocus_ = (nrows > 0);
+       updateHook();
 }
 
 
 void GuiSelectionManager::upPB_clicked()
 {
-QModelIndex idx = selectedLV->currentIndex();
+       QModelIndex idx = selectedLV->currentIndex();
+
+       int const pos = idx.row();
+       if (pos <= 0)
+               return;
+       
+       QMap<int, QVariant> qm = selectedModel->itemData(idx);
 
-int const pos = idx.row();
-QStringList keys = selectedModel->stringList();
-keys.swap(pos, pos - 1);
-selectedModel->setStringList(keys);
-selectionChanged(); //signal
+       selectedModel->removeRow(pos);
+       insertRowToSelected(pos - 1, qm);
 
-selectedLV->setCurrentIndex(idx.sibling(idx.row() - 1, idx.column()));
-selectedHasFocus_ = true;
-updateHook();
+       selectionChanged(); //signal
+
+       selectedLV->setCurrentIndex(idx.sibling(idx.row() - 1, idx.column()));
+       selectedHasFocus_ = true;
+       updateHook();
 }
 
 
 void GuiSelectionManager::downPB_clicked()
 {
-QModelIndex idx = selectedLV->currentIndex();
+       QModelIndex idx = selectedLV->currentIndex();
+
+       int const pos = idx.row();
+       if (pos >= selectedModel->rowCount() - 1)
+               return;
+
+       QMap<int, QVariant> qm = selectedModel->itemData(idx);
 
-int const pos = idx.row();
-QStringList keys = selectedModel->stringList();
-keys.swap(pos, pos + 1);
-selectedModel->setStringList(keys);
-selectionChanged(); //signal
+       selectedModel->removeRow(pos);
+       insertRowToSelected(pos + 1, qm);
 
-selectedLV->setCurrentIndex(idx.sibling(idx.row() + 1, idx.column()));
-selectedHasFocus_ = true;
-updateHook();
+       selectionChanged(); //signal
+       
+       selectedLV->setCurrentIndex(idx.sibling(idx.row() + 1, idx.column()));
+       selectedHasFocus_ = true;
+       updateHook();
 }
 
 
-//FIXME These slots do not really do what they need to do, since focus
-//can enter the QListView in other ways. But there are no signals sent
-//in that case. We need to reimplement focusInEvent() to capture those,
-//which means subclassing QListView. (rgh)
+// FIXME These slots do not really do what they need to do, since focus
+// can enter the QListView in other ways. But there are no signals sent
+// in that case. We need to reimplement focusInEvent() to capture those,
+// which means subclassing QListView. (rgh)
+// Or by installing an event listener.. (andre)
 void GuiSelectionManager::availableLV_clicked(const QModelIndex &)
 {
-selectedHasFocus_ = false;
-updateHook();
+       selectedHasFocus_ = false;
+       updateHook();
 }
 
 
 void GuiSelectionManager::availableLV_doubleClicked(const QModelIndex & idx)
 {
-if (isSelected(idx))
-       return;
-
-if (idx.isValid())
-       selectedHasFocus_ = false;
-addPB_clicked();
-//updateHook() will be emitted there
+       if (isSelected(idx) || !addPB->isEnabled())
+               return;
+       
+       if (idx.isValid())
+               selectedHasFocus_ = false;
+       addPB_clicked();
+       //updateHook() will be emitted there
 }
 
 
 void GuiSelectionManager::selectedLV_clicked(const QModelIndex &)
 {
-selectedHasFocus_ = true;
-updateHook();
+       selectedHasFocus_ = true;
+       updateHook();
 }
 
 
 bool GuiSelectionManager::eventFilter(QObject * obj, QEvent * event) 
 {
-if (obj == availableLV) {
-       if (event->type() != QEvent::KeyPress)
-               return QObject::eventFilter(obj, event);
-       QKeyEvent * keyEvent = static_cast<QKeyEvent *>(event);
-       int const keyPressed = keyEvent->key();
-       Qt::KeyboardModifiers const keyModifiers = keyEvent->modifiers();
-       //Enter key without modifier will add current item.
-       //Ctrl-Enter will add it and close the dialog.
-               //This is designed to work both with the main enter key
-               //and the one on the numeric keypad.
-               if ((keyPressed == Qt::Key_Enter || keyPressed == Qt::Key_Return) &&
-                               //We want one or both of Control and Keypad, and nothing else
-                               //(KeypadModifier is what you get if you use the Enter key on the
-                               //numeric keypad.)
-                                        (!keyModifiers || 
-                                        (keyModifiers == Qt::ControlModifier) ||
-                                        (keyModifiers == Qt::KeypadModifier)  ||
-                                        (keyModifiers == (Qt::ControlModifier | Qt::KeypadModifier))
-                                        )
-                        ) {
-                       if (addPB->isEnabled()) {
+       if (obj == availableLV) {
+               if (event->type() != QEvent::KeyPress)
+                       return QObject::eventFilter(obj, event);
+               QKeyEvent * keyEvent = static_cast<QKeyEvent *>(event);
+               int const keyPressed = keyEvent->key();
+               Qt::KeyboardModifiers const keyModifiers = keyEvent->modifiers();
+               // Enter key without modifier will add current item.
+               // Ctrl-Enter will add it and close the dialog.
+               // This is designed to work both with the main enter key
+               // and the one on the numeric keypad.
+               if (keyPressed == Qt::Key_Enter || keyPressed == Qt::Key_Return) {
+                       if (!keyModifiers)
                                addPB_clicked();
-                               okHook(); //signal
+                       else if (keyModifiers == Qt::ControlModifier ||
+                                       keyModifiers == Qt::KeypadModifier  ||
+                                       keyModifiers == (Qt::ControlModifier | Qt::KeypadModifier)) {
+                               if (addPB->isEnabled()) {
+                                       addPB_clicked();
+                                       okHook(); //signal
+                               }
                        }
                        event->accept();
                        return true;
-                        } 
+               }
        } else if (obj == selectedLV) {
-               //Delete or backspace key will delete current item
-               //...with control modifier will clear the list
                if (event->type() != QEvent::KeyPress)
                        return QObject::eventFilter(obj, event);
                QKeyEvent * keyEvent = static_cast<QKeyEvent *>(event);
                int const keyPressed = keyEvent->key();
                Qt::KeyboardModifiers const keyModifiers = keyEvent->modifiers();
+               // Delete or backspace key will delete current item
+               // ...with control modifier will clear the list
                if (keyPressed == Qt::Key_Delete || keyPressed == Qt::Key_Backspace) {
-                       if (keyModifiers == Qt::NoModifier && deletePB->isEnabled())
+                       if (keyModifiers == Qt::NoModifier && deletePB->isEnabled()) {
                                deletePB_clicked();
-                       else if (keyModifiers == Qt::ControlModifier) {
-                               QStringList list = selectedModel->stringList();
-                               list.clear();
-                               selectedModel->setStringList(list);
+                               updateHook();
+                       } else if (keyModifiers == Qt::ControlModifier) {
+                               selectedModel->removeRows(0, selectedModel->rowCount());
                                updateHook();
                        } else
-                               //ignore it otherwise
                                return QObject::eventFilter(obj, event);
+               } 
+               // Ctrl-Up activates upPB
+               else if (keyPressed == Qt::Key_Up) {
+                       if (keyModifiers == Qt::ControlModifier) {
+                               if (upPB->isEnabled())
+                                       upPB_clicked();
                                event->accept();
                                return true;
+                       }
+               } 
+               // Ctrl-Down activates downPB
+               else if (keyPressed == Qt::Key_Down) {
+                       if (keyModifiers == Qt::ControlModifier) {
+                               if (downPB->isEnabled())
+                                       downPB_clicked();
+                               event->accept();
+                               return true;
+                       }
                }
        }
        return QObject::eventFilter(obj, event);
@@ -286,4 +377,4 @@ if (obj == availableLV) {
 } // namespace frontend
 } // namespace lyx
 
-#include "GuiSelectionManager_moc.cpp"
+#include "moc_GuiSelectionManager.cpp"