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calendar.cpp
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calendar.cpp
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#include "calendar.h"
#include "eventdialog.h"
#include "filedetaildialog.h"
#include "eventlistdialog.h"
#include "color.h"
#include <QLocale>
#include <QFontMetrics>
#include <QDateTime>
#include <QTimer>
#include <QStandardItemModel>
#include <QCryptographicHash>
#include <QByteArray>
#include <QDateTime>
#include <QMimeData>
#include <QUrl>
#include <QFileInfo>
#include <QMessageBox>
#include <QStandardPaths>
#include <QDir>
const int Calendar::FONTSIZE_DAYOFMONTH;
const int Calendar::FONTSIZE_ITEMTITLE;
constexpr char const Calendar::COLOR_TODAY[];
const int Calendar::MARGIN_BELOW_DAY;
const int Calendar::MARGIN_BETWEEN_TILES;
const int Calendar::MARGIN_TILE_SIDE;
const int Calendar::PADDING_TOP;
const int Calendar::PADDING_BOTTOM;
const int Calendar::PADDING_LEFT;
const int Calendar::PADDING_RIGHT;
const int Calendar::FREEZE_PERIOD;
Calendar::Calendar(QWidget* parent):
QCalendarWidget(parent)
{
setVerticalHeaderFormat(QCalendarWidget::NoVerticalHeader);
setGridVisible(true);
setStyleSheet("selection-background-color: white");
setNavigationBarVisible(false);
connect(this, SIGNAL(currentPageChanged(int,int)), this, SLOT(loadMonthLists()));
connect(this, SIGNAL(currentPageChanged(int,int)), this, SLOT(freezeDoubleClick()));
}
void Calendar::paintCell(QPainter * painter, const QRect & rect, const QDate & date) const
{
if (xPivots.isEmpty() || rect.x() > xPivots.last()) {
xPivots.append(rect.x());
cellWidths.append(rect.width());
}
if (yPivots.isEmpty() || rect.y() > yPivots.last()) {
yPivots.append(rect.y());
cellHeights.append(rect.height());
}
if (date == QDateTime::currentDateTime().date()) {
painter->setPen(Qt::NoPen);
painter->setBrush(QColor(COLOR_TODAY));
painter->drawRect(rect);
}
if (date.month() != monthShown()) {
painter->setPen(Qt::lightGray);
} else if (date.dayOfWeek() == Qt::Saturday || date.dayOfWeek() == Qt::Sunday) {
painter->setPen(Qt::red);
} else {
painter->setPen(Qt::black);
}
painter->setFont(QFont("Sans", FONTSIZE_DAYOFMONTH));
painter->drawText(rect, Qt::AlignTop | Qt::AlignRight, QString::number(date.day()));
QFont itemTitleFont = QFont("Sans", FONTSIZE_ITEMTITLE);
QFontMetrics itemTitleMetrics(itemTitleFont);
painter->setFont(itemTitleFont);
if (date.month() != monthShown()) {
return;
}
auto dayFileList = m_monthFileList[date.day()];
auto dayEventList = m_monthEventList[date.day()];
auto dayList = dayFileList + dayEventList;
if (!dayList.isEmpty()) {
int maxLine = (rect.height() - FONTSIZE_DAYOFMONTH - MARGIN_BELOW_DAY) /
(PADDING_TOP + FONTSIZE_ITEMTITLE + PADDING_BOTTOM + MARGIN_BETWEEN_TILES);
painter->save();
painter->translate(rect.x(), rect.y());
painter->translate(MARGIN_TILE_SIDE, FONTSIZE_DAYOFMONTH + MARGIN_BELOW_DAY);
for (int i = 0; i < dayList.size(); ++i) {
if (i == maxLine - 1 && i < dayList.size() - 1) {
painter->setPen(Qt::gray);
painter->drawText(PADDING_LEFT, FONTSIZE_ITEMTITLE + PADDING_TOP,
tr("%1 More").arg(dayList.size() - i));
break;
}
QString sha1 = dayList[i];
int color;
QString title;
if (i < dayFileList.size()) {
const CalendarFile* file = m_dataAdapter->getFile(sha1);
color = file->color;
title = file->title;
} else {
const CalendarEvent* event = m_dataAdapter->getEvent(sha1);
color = event->color;
title = event->title;
}
painter->setPen(Qt::NoPen);
painter->setBrush(Color::getColor(color));
painter->drawRect(0, 0, rect.width() - 2 * MARGIN_TILE_SIDE,
PADDING_TOP + FONTSIZE_ITEMTITLE + PADDING_BOTTOM);
painter->save();
painter->translate(PADDING_LEFT, PADDING_TOP + FONTSIZE_ITEMTITLE);
painter->setPen(Qt::black);
QString elidedTitle = itemTitleMetrics.elidedText(title, Qt::ElideRight,
rect.width() - PADDING_LEFT - PADDING_RIGHT - 2 * MARGIN_TILE_SIDE);
painter->drawText(0, 0, elidedTitle);
painter->restore();
painter->translate(0, PADDING_TOP + FONTSIZE_ITEMTITLE + PADDING_BOTTOM + MARGIN_BETWEEN_TILES);
}
painter->restore();
}
}
void Calendar::startOfWeekChanged(Qt::DayOfWeek day)
{
setFirstDayOfWeek(day);
}
void Calendar::loadMonthLists()
{
m_monthEventList = m_dataAdapter->getEventsForMonth(yearShown(), monthShown());
m_monthFileList = m_dataAdapter->getFilesForMonth(yearShown(), monthShown());
update();
}
void Calendar::setDataAdapter(DataAdapter *dataAdapter)
{
m_dataAdapter = dataAdapter;
connect(m_dataAdapter, SIGNAL(updateData()), this, SLOT(loadMonthLists()));
loadMonthLists();
}
void Calendar::freezeDoubleClick()
{
doubleClickFreezed = true;
QTimer::singleShot(FREEZE_PERIOD, [this]{ doubleClickFreezed = false; });
}
void Calendar::doubleClicked(int x, int y)
{
// dirty hack: exclude header and cells from adjacent months
if (y < yPivots.first() || doubleClickFreezed) {
return;
}
int xInCell, yInCell, cellWidth = 0, cellHeight = 0;
for (int i = xPivots.size() - 1; i >= 0; --i) {
xInCell = x - xPivots[i];
if (xInCell >= 0) {
cellWidth = cellWidths[i];
break;
}
}
for (int i = yPivots.size() - 1; i >= 0; --i) {
yInCell = y - yPivots[i];
if (yInCell >= 0) {
cellHeight = cellHeights[i];
break;
}
}
int index = getTileIndex(xInCell, yInCell, cellWidth, cellHeight);
int maxLine = (cellHeight - FONTSIZE_DAYOFMONTH - MARGIN_BELOW_DAY) /
(PADDING_TOP + FONTSIZE_ITEMTITLE + PADDING_BOTTOM + MARGIN_BETWEEN_TILES);
QStringList fileList = m_monthFileList[selectedDate().day()];
QStringList eventList = m_monthEventList[selectedDate().day()];
QStringList dayList = fileList + eventList;
if (dayList.size() <= maxLine) {
if (0 <= index && index < dayList.size()) {
if (index < fileList.size()) {
return showFileDetailDialog(dayList[index]);
}
return showEventDialog(dayList[index]);
}
} else {
if (0 <= index && index < maxLine - 1) {
if (index < fileList.size()) {
return showFileDetailDialog(dayList[index]);
}
return showEventDialog(dayList[index]);
} else if (index == maxLine - 1) {
return showItemList(dayList, fileList.size());
}
}
// double-click on blank area, create new event
return showEventDialog(selectedDate());
}
void Calendar::showEventDialog(const QString &sha1)
{
EventDialog dlg(*(m_dataAdapter->getEvent(sha1)));
execEventDialog(dlg, sha1);
}
void Calendar::showFileDetailDialog(const QString &itemSha1)
{
const CalendarFile* file = m_dataAdapter->getFile(itemSha1);
FileDetailDialog dlg(file->contentSha1, file->title, file->color, this);
if (dlg.exec() == QDialog::Accepted) {
if (dlg.toDelete) {
m_dataAdapter->deleteFile(itemSha1);
} else {
m_dataAdapter->changeFileColor(itemSha1, dlg.color());
}
}
}
void Calendar::showEventDialog(const QDate& date)
{
EventDialog dlg(date);
dlg.setWindowTitle(tr("New event"));
execEventDialog(dlg);
}
void Calendar::execEventDialog(EventDialog &dlg, QString sha1)
{
if (sha1.isEmpty()) {
sha1 = QString(QCryptographicHash::hash(
(dlg.title() + QString::number(QDateTime::currentMSecsSinceEpoch())).toUtf8(),
QCryptographicHash::Sha1).toHex());
}
if (dlg.exec() == QDialog::Accepted) {
switch(dlg.deleteStatus) {
case EventDialog::DO_NOT_DELETE:
m_dataAdapter->addOrUpdateEvent(sha1, new CalendarEvent(
dlg.color(),
dlg.dates(),
dlg.startTime(),
dlg.endTime(),
dlg.title(),
dlg.location(),
dlg.comments()));
break;
case EventDialog::DELETE_SERIES:
m_dataAdapter->deleteSeries(sha1);
break;
case EventDialog::DELETE_INSTANCE:
m_dataAdapter->deleteSingleEvent(sha1, selectedDate());
break;
}
}
}
void Calendar::showItemList(const QStringList &sha1List, int numFiles)
{
QStandardItemModel model(sha1List.size(), 1);
for (int i = 0; i < sha1List.size(); ++i) {
QString title;
int color;
if (i < numFiles) {
title = m_dataAdapter->getFile(sha1List[i])->title;
color = m_dataAdapter->getFile(sha1List[i])->color;
} else {
title = m_dataAdapter->getEvent(sha1List[i])->title;
color = m_dataAdapter->getEvent(sha1List[i])->color;
}
QStandardItem* item = new QStandardItem(QString("%1,%2").arg(title).arg(color));
model.setItem(i, 0, item);
}
EventListDialog dlg;
dlg.setModel(model);
if (dlg.exec() == QDialog::Accepted) {
int index = dlg.getSelectedIndex();
if (index < numFiles) {
emit showFileDetailDialog(sha1List[index]);
} else {
emit showEventDialog(sha1List[index]);
}
}
}
void Calendar::cellsResized()
{
xPivots.clear();
yPivots.clear();
cellWidths.clear();
cellHeights.clear();
}
int Calendar::getTileIndex(int x, int y, int cellWidth, int cellHeight)
{
if (x <= MARGIN_TILE_SIDE || x >= cellWidth - MARGIN_TILE_SIDE) {
return -1;
}
int baseY = FONTSIZE_DAYOFMONTH + MARGIN_BELOW_DAY;
int dy = PADDING_TOP + FONTSIZE_ITEMTITLE + PADDING_BOTTOM + MARGIN_BETWEEN_TILES;
for (int i = 0; baseY + dy <= cellHeight; ++i, baseY += dy) {
if (baseY < y && y < baseY + dy) {
return i;
}
}
return -1;
}
void Calendar::drop(QDropEvent *e)
{
QDate date = getDateByPosition(e->pos());
if (!date.isValid() || date.month() != monthShown()) {
return;
}
const QMimeData* mime = e->mimeData();
if (!mime->hasUrls()) {
return;
}
QStringList pathList;
QList<QUrl> urlList = mime->urls();
for (auto url : urlList) {
pathList.append(url.toLocalFile());
}
for (auto path : pathList) {
int color = qrand() % (Color::MAX_COLOR + 1);
QFile file(path);
QFileInfo fileInfo(file.fileName());
QString title(fileInfo.fileName());
file.open(QIODevice::ReadOnly);
QByteArray bytes = file.readAll();
if (bytes.isEmpty()) {
QMessageBox::critical(this, tr("Error!"), tr("Cannot read file \"%1\"!").arg(file.fileName()), QMessageBox::Ok);
continue;
}
file.close();
QString itemSha1 = QString(QCryptographicHash::hash(
(title + QString::number(QDateTime::currentMSecsSinceEpoch())).toUtf8(),
QCryptographicHash::Sha1).toHex());
QString contentSha1 = QString(QCryptographicHash::hash(
bytes, QCryptographicHash::Sha1).toHex());
if (!importFile(path, contentSha1)) {
QMessageBox::critical(this, tr("Error!"), tr("Cannot import file \"%1\"!").arg(file.fileName()), QMessageBox::Ok);
continue;
}
m_dataAdapter->addFile(itemSha1, new CalendarFile(color, date, title, contentSha1));
}
setFocus();
}
bool Calendar::importFile(const QString &srcPath, const QString &sha1)
{
QString filesPath = QStandardPaths::writableLocation(QStandardPaths::AppConfigLocation) + QDir::separator() + "files";
QDir filesDir = QDir(filesPath);
if (!filesDir.exists()) {
if (!filesDir.mkpath(filesPath)) {
return false;
}
}
QString dstPath = filesDir.filePath(sha1);
if (QFile::exists(dstPath)) {
return true;
}
return QFile::copy(srcPath, dstPath);
}
QDate Calendar::getDateByPosition(const QPoint &pos)
{
int xIndex = -1, yIndex = -1;
for (int i = 0; i < xPivots.size(); ++i) {
if (xPivots[i] < pos.x() && pos.x() < xPivots[i] + cellWidths[i]) {
xIndex = i;
break;
}
}
for (int i = 0; i < yPivots.size(); ++i) {
if (yPivots[i] < pos.y() && pos.y() < yPivots[i] + cellHeights[i]) {
yIndex = i;
break;
}
}
if (xIndex == -1 || yIndex == -1) {
// invalid date
return QDate();
}
int index = 7 * yIndex + xIndex;
QDate baseDay(yearShown(), monthShown(), 1);
int baseIndex = baseDay.dayOfWeek() - (int)firstDayOfWeek();
if (baseIndex < 0) {
baseIndex += 7;
}
return baseDay.addDays(index - baseIndex);
}