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#include "widget/wlibrarytableview.h"
#include <QFocusEvent>
#include <QFontMetrics>
#include <QHeaderView>
#include <QPalette>
#include <QScrollBar>
#include "library/trackmodel.h"
#include "util/math.h"
#include "widget/wskincolor.h"
#include "widget/wwidget.h"
WLibraryTableView::WLibraryTableView(QWidget* parent,
UserSettingsPointer pConfig,
ConfigKey vScrollBarPosKey)
: QTableView(parent),
m_pConfig(pConfig),
m_vScrollBarPosKey(vScrollBarPosKey) {
loadVScrollBarPosState();
// Setup properties for table
// Editing starts when clicking on an already selected item.
setEditTriggers(QAbstractItemView::SelectedClicked|QAbstractItemView::EditKeyPressed);
//Enable selection by rows and extended selection (ctrl/shift click)
setSelectionBehavior(QAbstractItemView::SelectRows);
setSelectionMode(QAbstractItemView::ExtendedSelection);
setWordWrap(false);
setShowGrid(false);
setCornerButtonEnabled(false);
setSortingEnabled(true);
// Used by delegates (e.g. StarDelegate) to tell when the mouse enters a
// cell.
setMouseTracking(true);
//Work around a Qt bug that lets you make your columns so wide you
//can't reach the divider to make them small again.
setHorizontalScrollMode(QAbstractItemView::ScrollPerPixel);
verticalHeader()->hide();
setVerticalScrollBarPolicy(Qt::ScrollBarAlwaysOn);
setAlternatingRowColors(true);
connect(verticalScrollBar(), SIGNAL(valueChanged(int)),
this, SIGNAL(scrollValueChanged(int)));
setTabKeyNavigation(false);
}
WLibraryTableView::~WLibraryTableView() {
}
void WLibraryTableView::loadVScrollBarPosState() {
// TODO(rryan) I'm not sure I understand the value in saving the v-scrollbar
// position across restarts of Mixxx. Now that we have different views for
// each mode, the views should just maintain their scrollbar position when
// you switch views. We should discuss this.
m_noSearchVScrollBarPos = m_pConfig->getValueString(m_vScrollBarPosKey).toInt();
}
void WLibraryTableView::restoreNoSearchVScrollBarPos() {
// Restore the scrollbar's position (scroll to that spot)
// when the search has been cleared
//qDebug() << "restoreNoSearchVScrollBarPos()" << m_noSearchVScrollBarPos;
updateGeometries();
verticalScrollBar()->setValue(m_noSearchVScrollBarPos);
}
void WLibraryTableView::saveNoSearchVScrollBarPos() {
// Save the scrollbar's position so we can return here after
// a search is cleared.
//qDebug() << "saveNoSearchVScrollBarPos()" << m_noSearchVScrollBarPos;
m_noSearchVScrollBarPos = verticalScrollBar()->value();
}
void WLibraryTableView::saveVScrollBarPosState() {
//Save the vertical scrollbar position.
int scrollbarPosition = verticalScrollBar()->value();
m_pConfig->set(m_vScrollBarPosKey, ConfigValue(scrollbarPosition));
}
void WLibraryTableView::moveSelection(int delta) {
QAbstractItemModel* pModel = model();
if (pModel == nullptr) {
return;
}
while(delta != 0) {
// TODO(rryan) what happens if there is nothing selected?
QModelIndex current = currentIndex();
if(delta > 0) {
// i is positive, so we want to move the highlight down
int row = current.row();
if (row + 1 < pModel->rowCount()) {
selectRow(row + 1);
}
delta--;
} else {
// i is negative, so we want to move the highlight up
int row = current.row();
if (row - 1 >= 0) {
selectRow(row - 1);
}
delta++;
}
}
}
void WLibraryTableView::saveVScrollBarPos(TrackModel* key){
m_vScrollBarPosValues[key] = verticalScrollBar()->value();
}
void WLibraryTableView::restoreVScrollBarPos(TrackModel* key){
updateGeometries();
if (m_vScrollBarPosValues.contains(key)){
verticalScrollBar()->setValue(m_vScrollBarPosValues[key]);
}else{
m_vScrollBarPosValues[key] = 0;
verticalScrollBar()->setValue(0);
}
}
void WLibraryTableView::setTrackTableFont(const QFont& font) {
setFont(font);
setTrackTableRowHeight(verticalHeader()->defaultSectionSize());
}
void WLibraryTableView::setTrackTableRowHeight(int rowHeight) {
QFontMetrics metrics(font());
int fontHeightPx = metrics.height();
verticalHeader()->setDefaultSectionSize(math_max(
rowHeight, fontHeightPx));
}
void WLibraryTableView::setSelectedClick(bool enable) {
if (enable) {
setEditTriggers(QAbstractItemView::SelectedClicked|QAbstractItemView::EditKeyPressed);
} else {
setEditTriggers(QAbstractItemView::EditKeyPressed);
}
}
void WLibraryTableView::focusInEvent(QFocusEvent* event) {
QTableView::focusInEvent(event);
if (event->reason() == Qt::TabFocusReason ||
event->reason() == Qt::BacktabFocusReason) {
// On FocusIn caused by a tab action with no focused item, select the
// current or first track which can then instantly be loaded to a deck.
// This is especially helpful if the table has only one track, which can
// not be selected with up/down buttons, either physical or emulated via
// [Library],MoveVertical controls. See lp:1808632
if (model()->rowCount() > 0) {
if (selectionModel()->hasSelection()) {
DEBUG_ASSERT(!selectionModel()->selectedIndexes().isEmpty());
if (!currentIndex().isValid() ||
!selectionModel()->isSelected(currentIndex())) {
// Reselect the first selected index
selectRow(selectionModel()->selectedIndexes().first().row());
}
} else {
if (!currentIndex().isValid()) {
// Select the first row if no row is focused
selectRow(0);
DEBUG_ASSERT(currentIndex().row() == 0);
} else {
// Select the focused row
selectRow(currentIndex().row());
}
}
DEBUG_ASSERT(currentIndex().isValid());
DEBUG_ASSERT(selectionModel()->isSelected(currentIndex()));
// scrollTo() doesn't always seem to work!?
scrollTo(currentIndex());
}
}
}
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