mirror of
https://git.lyx.org/repos/lyx.git
synced 2024-11-16 16:18:22 +00:00
430 lines
11 KiB
C++
430 lines
11 KiB
C++
/**
|
|
* \file GuiSelectionManager.cpp
|
|
* This file is part of LyX, the document processor.
|
|
* Licence details can be found in the file COPYING.
|
|
*
|
|
* \author Richard Heck
|
|
* \author Et Alia
|
|
*
|
|
* Some of the material in this file previously appeared in
|
|
* GuiCitationDialog.cpp.
|
|
*
|
|
* Full author contact details are available in file CREDITS.
|
|
*/
|
|
|
|
#include <config.h>
|
|
|
|
#include "GuiSelectionManager.h"
|
|
|
|
#include "support/debug.h"
|
|
|
|
#include <QAbstractListModel>
|
|
#include <QItemSelection>
|
|
#include <QListView>
|
|
#include <QKeyEvent>
|
|
#include <QPushButton>
|
|
|
|
#ifdef KeyPress
|
|
#undef KeyPress
|
|
#endif
|
|
|
|
#ifdef ControlModifier
|
|
#undef ControlModifier
|
|
#endif
|
|
|
|
#ifdef FocusIn
|
|
#undef FocusIn
|
|
#endif
|
|
|
|
|
|
namespace lyx {
|
|
namespace frontend {
|
|
|
|
GuiSelectionManager::GuiSelectionManager(
|
|
QAbstractItemView * avail,
|
|
QListView * sel,
|
|
QPushButton * add,
|
|
QPushButton * del,
|
|
QPushButton * up,
|
|
QPushButton * down,
|
|
QAbstractListModel * amod,
|
|
QAbstractListModel * smod)
|
|
: availableLV(avail), selectedLV(sel), addPB(add), deletePB(del),
|
|
upPB(up), downPB(down), availableModel(amod), selectedModel(smod),
|
|
selectedHasFocus_(false)
|
|
{
|
|
|
|
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(availableLV->selectionModel(),
|
|
SIGNAL(selectionChanged(QItemSelection, QItemSelection)),
|
|
this, SLOT(availableChanged(QItemSelection, QItemSelection)));
|
|
connect(selectedLV->selectionModel(),
|
|
SIGNAL(selectionChanged(QItemSelection, QItemSelection)),
|
|
this, SLOT(selectedChanged(QItemSelection, QItemSelection)));
|
|
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(doubleClicked(QModelIndex)),
|
|
this, SLOT(availableLV_doubleClicked(QModelIndex)));
|
|
|
|
availableLV->installEventFilter(this);
|
|
selectedLV->installEventFilter(this);
|
|
}
|
|
|
|
|
|
void GuiSelectionManager::update()
|
|
{
|
|
updateAddPB();
|
|
updateDelPB();
|
|
updateDownPB();
|
|
updateUpPB();
|
|
}
|
|
|
|
|
|
QModelIndex GuiSelectionManager::getSelectedIndex() const
|
|
{
|
|
QModelIndexList avail = availableLV->selectionModel()->selectedIndexes();
|
|
QModelIndexList sel = selectedLV->selectionModel()->selectedIndexes();
|
|
bool const have_avl = !avail.isEmpty();
|
|
bool const have_sel = !sel.isEmpty();
|
|
|
|
if (selectedFocused()) {
|
|
if (have_sel)
|
|
return sel.front();
|
|
if (have_avl)
|
|
return avail.front();
|
|
}
|
|
else { // available has focus
|
|
if (have_avl)
|
|
return avail.front();
|
|
if (have_sel)
|
|
return sel.front();
|
|
}
|
|
return QModelIndex();
|
|
}
|
|
|
|
|
|
void GuiSelectionManager::updateAddPB()
|
|
{
|
|
int const arows = availableModel->rowCount();
|
|
QModelIndexList const availSels =
|
|
availableLV->selectionModel()->selectedIndexes();
|
|
addPB->setEnabled(arows > 0 &&
|
|
!availSels.isEmpty() &&
|
|
!isSelected(availSels.first()));
|
|
}
|
|
|
|
|
|
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);
|
|
}
|
|
|
|
|
|
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)
|
|
{
|
|
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(QItemSelection const & qis, QItemSelection const &)
|
|
{
|
|
QModelIndexList il = qis.indexes();
|
|
if (il.empty())
|
|
return;
|
|
availableChanged(il.front(), QModelIndex());
|
|
}
|
|
|
|
|
|
void GuiSelectionManager::availableChanged(const QModelIndex & idx, const QModelIndex &)
|
|
{
|
|
if (!idx.isValid())
|
|
return;
|
|
|
|
selectedHasFocus_ = false;
|
|
updateHook();
|
|
}
|
|
|
|
|
|
void GuiSelectionManager::selectedChanged(QItemSelection const & qis, QItemSelection const &)
|
|
{
|
|
QModelIndexList il = qis.indexes();
|
|
if (il.empty())
|
|
return;
|
|
selectedChanged(il.front(), QModelIndex());
|
|
}
|
|
|
|
|
|
void GuiSelectionManager::selectedChanged(const QModelIndex & idx, const QModelIndex &)
|
|
{
|
|
if (!idx.isValid())
|
|
return;
|
|
|
|
selectedHasFocus_ = true;
|
|
updateHook();
|
|
}
|
|
|
|
|
|
bool GuiSelectionManager::insertRowToSelected(int i,
|
|
QMap<int, QVariant> const & itemData)
|
|
{
|
|
if (i <= -1)
|
|
i = 0;
|
|
if (i > selectedModel->rowCount())
|
|
i = selectedModel->rowCount();
|
|
if (!selectedModel->insertRow(i))
|
|
return false;
|
|
return selectedModel->setItemData(selectedModel->index(i), itemData);
|
|
}
|
|
|
|
|
|
void GuiSelectionManager::addPB_clicked()
|
|
{
|
|
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()
|
|
{
|
|
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()
|
|
{
|
|
QModelIndexList selIdx =
|
|
selectedLV->selectionModel()->selectedIndexes();
|
|
if (selIdx.isEmpty())
|
|
return;
|
|
QModelIndex idx = selIdx.first();
|
|
|
|
int const pos = idx.row();
|
|
if (pos <= 0)
|
|
return;
|
|
|
|
QMap<int, QVariant> qm = selectedModel->itemData(idx);
|
|
|
|
selectedModel->removeRow(pos);
|
|
insertRowToSelected(pos - 1, qm);
|
|
|
|
selectionChanged(); //signal
|
|
|
|
selectedLV->setCurrentIndex(idx.sibling(idx.row() - 1, idx.column()));
|
|
selectedHasFocus_ = true;
|
|
updateHook();
|
|
}
|
|
|
|
|
|
void GuiSelectionManager::downPB_clicked()
|
|
{
|
|
QModelIndexList selIdx =
|
|
selectedLV->selectionModel()->selectedIndexes();
|
|
if (selIdx.isEmpty())
|
|
return;
|
|
QModelIndex idx = selIdx.first();
|
|
|
|
int const pos = idx.row();
|
|
if (pos >= selectedModel->rowCount() - 1)
|
|
return;
|
|
|
|
QMap<int, QVariant> qm = selectedModel->itemData(idx);
|
|
|
|
selectedModel->removeRow(pos);
|
|
insertRowToSelected(pos + 1, qm);
|
|
|
|
selectionChanged(); //signal
|
|
|
|
selectedLV->setCurrentIndex(idx.sibling(idx.row() + 1, idx.column()));
|
|
selectedHasFocus_ = true;
|
|
updateHook();
|
|
}
|
|
|
|
|
|
void GuiSelectionManager::availableLV_doubleClicked(const QModelIndex & idx)
|
|
{
|
|
if (isSelected(idx) || !addPB->isEnabled())
|
|
return;
|
|
|
|
if (idx.isValid())
|
|
selectedHasFocus_ = false;
|
|
addPB_clicked();
|
|
//updateHook() will be emitted there
|
|
}
|
|
|
|
|
|
bool GuiSelectionManager::eventFilter(QObject * obj, QEvent * event)
|
|
{
|
|
QEvent::Type etype = event->type();
|
|
if (obj == availableLV) {
|
|
if (etype == QEvent::KeyPress) {
|
|
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 (addPB->isEnabled()) {
|
|
if (!keyModifiers) {
|
|
addPB_clicked();
|
|
} else if (keyModifiers == Qt::ControlModifier ||
|
|
keyModifiers == Qt::KeypadModifier ||
|
|
keyModifiers == (Qt::ControlModifier | Qt::KeypadModifier)) {
|
|
addPB_clicked();
|
|
okHook(); //signal
|
|
}
|
|
}
|
|
event->accept();
|
|
return true;
|
|
}
|
|
} else if (etype == QEvent::FocusIn) {
|
|
if (selectedHasFocus_) {
|
|
selectedHasFocus_ = false;
|
|
updateHook();
|
|
}
|
|
event->accept();
|
|
return true;
|
|
}
|
|
} else if (obj == selectedLV) {
|
|
if (etype == QEvent::KeyPress) {
|
|
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()) {
|
|
deletePB_clicked();
|
|
updateHook();
|
|
} else if (keyModifiers == Qt::ControlModifier) {
|
|
selectedModel->removeRows(0, selectedModel->rowCount());
|
|
updateHook();
|
|
} else
|
|
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;
|
|
}
|
|
}
|
|
} else if (etype == QEvent::FocusIn) {
|
|
if (!selectedHasFocus_) {
|
|
selectedHasFocus_ = true;
|
|
updateHook();
|
|
}
|
|
event->accept();
|
|
return true;
|
|
}
|
|
}
|
|
return QObject::eventFilter(obj, event);
|
|
}
|
|
|
|
} // namespace frontend
|
|
} // namespace lyx
|
|
|
|
#include "moc_GuiSelectionManager.cpp"
|