tdesktop/Telegram/SourceFiles/ui/boxes/calendar_box.cpp

1150 lines
31 KiB
C++

/*
This file is part of Telegram Desktop,
the official desktop application for the Telegram messaging service.
For license and copyright information please follow this link:
https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
*/
#include "ui/boxes/calendar_box.h"
#include "ui/widgets/buttons.h"
#include "ui/widgets/scroll_area.h"
#include "ui/effects/ripple_animation.h"
#include "ui/chat/chat_style.h"
#include "ui/ui_utility.h"
#include "ui/painter.h"
#include "ui/cached_round_corners.h"
#include "lang/lang_keys.h"
#include "styles/style_boxes.h"
#include "styles/style_chat.h"
namespace Ui {
namespace {
constexpr auto kDaysInWeek = 7;
constexpr auto kTooltipDelay = crl::time(1000);
constexpr auto kJumpDelay = 2 * crl::time(1000);
} // namespace
class CalendarBox::Context {
public:
Context(QDate month, QDate highlighted);
void setAllowsSelection(bool allowsSelection);
[[nodiscard]] bool allowsSelection() const {
return _allowsSelection;
}
void setMinDate(QDate date);
void setMaxDate(QDate date);
[[nodiscard]] int minDayIndex() const {
return _minDayIndex;
}
[[nodiscard]] int maxDayIndex() const {
return _maxDayIndex;
}
void skipMonth(int skip);
void showMonth(QDate month);
[[nodiscard]] bool showsMonthOf(QDate date) const;
[[nodiscard]] int highlightedIndex() const {
return _highlightedIndex;
}
[[nodiscard]] int rowsCount() const {
return _rowsCount;
}
[[nodiscard]] int rowsCountMax() const {
return 6;
}
[[nodiscard]] int daysShift() const {
return _daysShift;
}
[[nodiscard]] int daysCount() const {
return _daysCount;
}
[[nodiscard]] bool isEnabled(int index) const {
return (index >= _minDayIndex) && (index <= _maxDayIndex);
}
[[nodiscard]] QDate month() const {
return _month.current();
}
[[nodiscard]] rpl::producer<QDate> monthValue() const {
return _month.value();
}
[[nodiscard]] QDate dateFromIndex(int index) const;
[[nodiscard]] QString labelFromIndex(int index) const;
void toggleSelectionMode(bool enabled);
[[nodiscard]] bool selectionMode() const;
[[nodiscard]] rpl::producer<> selectionUpdates() const;
[[nodiscard]] std::optional<int> selectedMin() const;
[[nodiscard]] std::optional<int> selectedMax() const;
void startSelection(int index);
void updateSelection(int index);
private:
struct Selection {
QDate min;
QDate max;
int minIndex = 0;
int maxIndex = 0;
};
void applyMonth(const QDate &month, bool forced = false);
static int DaysShiftForMonth(QDate month, QDate min);
static int RowsCountForMonth(QDate month, QDate min, QDate max);
bool _allowsSelection = false;
rpl::variable<QDate> _month;
QDate _min, _max;
QDate _highlighted;
Fn<QString(int)> _dayOfWeek;
Fn<QString(int, int)> _monthOfYear;
int _highlightedIndex = 0;
int _minDayIndex = 0;
int _maxDayIndex = 0;
int _daysCount = 0;
int _daysShift = 0;
int _rowsCount = 0;
Selection _selection;
QDate _selectionStart;
int _selectionStartIndex = 0;
rpl::event_stream<> _selectionUpdates;
bool _selectionMode = false;
};
CalendarBox::Context::Context(QDate month, QDate highlighted)
: _highlighted(highlighted) {
showMonth(month);
}
void CalendarBox::Context::setAllowsSelection(bool allows) {
_allowsSelection = allows;
}
void CalendarBox::Context::setMinDate(QDate date) {
_min = date;
applyMonth(_month.current(), true);
}
void CalendarBox::Context::setMaxDate(QDate date) {
_max = date;
applyMonth(_month.current(), true);
}
void CalendarBox::Context::showMonth(QDate month) {
if (month.day() != 1) {
month = QDate(month.year(), month.month(), 1);
}
applyMonth(month);
}
bool CalendarBox::Context::showsMonthOf(QDate date) const {
const auto shown = _month.current();
return (shown.year() == date.year()) && (shown.month() == date.month());
}
void CalendarBox::Context::applyMonth(const QDate &month, bool forced) {
const auto was = _month.current();
_daysCount = month.daysInMonth();
_daysShift = DaysShiftForMonth(month, _min);
_rowsCount = RowsCountForMonth(month, _min, _max);
_highlightedIndex = month.daysTo(_highlighted);
_minDayIndex = _min.isNull() ? INT_MIN : month.daysTo(_min);
_maxDayIndex = _max.isNull() ? INT_MAX : month.daysTo(_max);
const auto shift = was.isNull() ? 0 : month.daysTo(was);
auto updated = false;
const auto update = [&](const QDate &date, int &index) {
if (shift && !date.isNull()) {
index += shift;
}
};
update(_selection.min, _selection.minIndex);
update(_selection.max, _selection.maxIndex);
update(_selectionStart, _selectionStartIndex);
if (forced) {
_month.force_assign(month);
} else {
_month = month;
}
if (updated) {
_selectionUpdates.fire({});
}
}
void CalendarBox::Context::skipMonth(int skip) {
auto year = _month.current().year();
auto month = _month.current().month();
month += skip;
while (month < 1) {
--year;
month += 12;
}
while (month > 12) {
++year;
month -= 12;
}
showMonth(QDate(year, month, 1));
}
int CalendarBox::Context::DaysShiftForMonth(QDate month, QDate min) {
Expects(!month.isNull());
constexpr auto kMaxRows = 6;
const auto inMonthIndex = month.day() - 1;
const auto inWeekIndex = month.dayOfWeek() - 1;
const auto from = ((kMaxRows * kDaysInWeek) + inWeekIndex - inMonthIndex)
% kDaysInWeek;
if (min.isNull()) {
min = month.addYears(-1);
} else if (min >= month) {
return from;
}
if (min.day() != 1) {
min = QDate(min.year(), min.month(), 1);
}
const auto add = min.daysTo(month) - inWeekIndex + (min.dayOfWeek() - 1);
return from + add;
}
int CalendarBox::Context::RowsCountForMonth(
QDate month,
QDate min,
QDate max) {
Expects(!month.isNull());
const auto daysShift = DaysShiftForMonth(month, min);
const auto daysCount = month.daysInMonth();
const auto cellsCount = daysShift + daysCount;
auto result = (cellsCount / kDaysInWeek);
if (cellsCount % kDaysInWeek) {
++result;
}
if (max.isNull()) {
max = month.addYears(1);
}
if (max < month.addMonths(1)) {
return result;
}
if (max.day() != 1) {
max = QDate(max.year(), max.month(), 1);
}
max = max.addMonths(1);
max = max.addDays(1 - max.dayOfWeek());
const auto cellsFull = daysShift + (month.day() - 1) + month.daysTo(max);
return cellsFull / kDaysInWeek;
}
QDate CalendarBox::Context::dateFromIndex(int index) const {
constexpr auto kMonthsCount = 12;
auto month = _month.current().month();
auto year = _month.current().year();
while (index < 0) {
if (!--month) {
month += kMonthsCount;
--year;
}
index += QDate(year, month, 1).daysInMonth();
}
for (auto maxIndex = QDate(year, month, 1).daysInMonth(); index >= maxIndex; maxIndex = QDate(year, month, 1).daysInMonth()) {
index -= maxIndex;
if (month++ == kMonthsCount) {
month -= kMonthsCount;
++year;
}
}
return QDate(year, month, index + 1);
}
QString CalendarBox::Context::labelFromIndex(int index) const {
auto day = [this, index] {
if (index >= 0 && index < daysCount()) {
return index + 1;
}
return dateFromIndex(index).day();
};
return QString::number(day());
}
void CalendarBox::Context::toggleSelectionMode(bool enabled) {
if (_selectionMode == enabled) {
return;
}
_selectionMode = enabled;
_selectionStart = {};
_selection = {};
_selectionUpdates.fire({});
}
bool CalendarBox::Context::selectionMode() const {
return _selectionMode;
}
rpl::producer<> CalendarBox::Context::selectionUpdates() const {
return _selectionUpdates.events();
}
std::optional<int> CalendarBox::Context::selectedMin() const {
return _selection.min.isNull()
? std::optional<int>()
: _selection.minIndex;
}
std::optional<int> CalendarBox::Context::selectedMax() const {
return _selection.max.isNull()
? std::optional<int>()
: _selection.maxIndex;
}
void CalendarBox::Context::startSelection(int index) {
Expects(_selectionMode);
if (!_selectionStart.isNull() && _selectionStartIndex == index) {
return;
}
_selectionStartIndex = index;
_selectionStart = dateFromIndex(index);
updateSelection(index);
}
void CalendarBox::Context::updateSelection(int index) {
Expects(_selectionMode);
Expects(!_selectionStart.isNull());
index = std::clamp(index, minDayIndex(), maxDayIndex());
const auto start = _selectionStartIndex;
const auto min = std::min(index, start);
const auto max = std::max(index, start);
if (!_selection.min.isNull()
&& _selection.minIndex == min
&& !_selection.max.isNull()
&& _selection.maxIndex == max) {
return;
}
_selection = Selection{
.min = dateFromIndex(min),
.max = dateFromIndex(max),
.minIndex = min,
.maxIndex = max,
};
_selectionUpdates.fire({});
}
class CalendarBox::Inner final : public RpWidget {
public:
Inner(
QWidget *parent,
not_null<Context*> context,
const style::CalendarSizes &st,
const style::CalendarColors &styleColors);
[[nodiscard]] int countMaxHeight() const;
void setDateChosenCallback(Fn<void(QDate)> callback);
~Inner();
protected:
void paintEvent(QPaintEvent *e) override;
void mouseMoveEvent(QMouseEvent *e) override;
void mousePressEvent(QMouseEvent *e) override;
void mouseReleaseEvent(QMouseEvent *e) override;
private:
void monthChanged(QDate month);
void setSelected(int selected);
void setPressed(int pressed);
int rowsLeft() const;
int rowsTop() const;
void resizeToCurrent();
void paintRows(QPainter &p, QRect clip);
const style::CalendarSizes &_st;
const style::CalendarColors &_styleColors;
const not_null<Context*> _context;
bool _twoPressSelectionStarted = false;
std::map<int, std::unique_ptr<RippleAnimation>> _ripples;
Fn<void(QDate)> _dateChosenCallback;
static constexpr auto kEmptySelection = INT_MIN / 2;
int _selected = kEmptySelection;
int _pressed = kEmptySelection;
bool _pointerCursor = false;
bool _cursorSetWithoutMouseMove = false;
QPoint _lastGlobalPosition;
bool _mouseMoved = false;
};
class CalendarBox::FloatingDate final {
public:
FloatingDate(QWidget *parent, not_null<Context*> context);
[[nodiscard]] rpl::producer<int> widthValue() const;
void move(int x, int y);
[[nodiscard]] rpl::lifetime &lifetime();
private:
void paint();
const not_null<Context*> _context;
RpWidget _widget;
CornersPixmaps _corners;
QString _text;
};
CalendarBox::FloatingDate::FloatingDate(
QWidget *parent,
not_null<Context*> context)
: _context(context)
, _widget(parent)
, _corners(
PrepareCornerPixmaps(
HistoryServiceMsgRadius(),
st::roundedBg)) {
_context->monthValue(
) | rpl::start_with_next([=](QDate month) {
_text = langMonthOfYearFull(month.month(), month.year());
const auto width = st::msgServiceFont->width(_text);
const auto rect = QRect(0, 0, width, st::msgServiceFont->height);
_widget.resize(rect.marginsAdded(st::msgServicePadding).size());
_widget.update();
}, _widget.lifetime());
_widget.paintRequest(
) | rpl::start_with_next([=] {
paint();
}, _widget.lifetime());
_widget.setAttribute(Qt::WA_TransparentForMouseEvents);
_widget.show();
}
rpl::producer<int> CalendarBox::FloatingDate::widthValue() const {
return _widget.widthValue();
}
void CalendarBox::FloatingDate::move(int x, int y) {
_widget.move(x, y);
}
rpl::lifetime &CalendarBox::FloatingDate::lifetime() {
return _widget.lifetime();
}
void CalendarBox::FloatingDate::paint() {
auto p = QPainter(&_widget);
FillRoundRect(p, _widget.rect(), st::roundedBg, _corners);
p.setFont(st::msgServiceFont);
p.setPen(st::roundedFg);
p.drawText(
st::msgServicePadding.left(),
st::msgServicePadding.top() + st::msgServiceFont->ascent,
_text);
}
CalendarBox::Inner::Inner(
QWidget *parent,
not_null<Context*> context,
const style::CalendarSizes &st,
const style::CalendarColors &styleColors)
: RpWidget(parent)
, _st(st)
, _styleColors(styleColors)
, _context(context) {
setMouseTracking(true);
context->monthValue(
) | rpl::start_with_next([=](QDate month) {
monthChanged(month);
}, lifetime());
context->selectionUpdates(
) | rpl::start_with_next([=] {
update();
}, lifetime());
}
void CalendarBox::Inner::monthChanged(QDate month) {
setSelected(kEmptySelection);
_ripples.clear();
resizeToCurrent();
update();
SendSynteticMouseEvent(this, QEvent::MouseMove, Qt::NoButton);
}
void CalendarBox::Inner::resizeToCurrent() {
const auto height = _context->rowsCount() * _st.cellSize.height();
resize(_st.width, _st.padding.top() + height + _st.padding.bottom());
}
void CalendarBox::Inner::paintEvent(QPaintEvent *e) {
auto p = QPainter(this);
auto clip = e->rect();
paintRows(p, clip);
}
int CalendarBox::Inner::rowsLeft() const {
return _st.padding.left();
}
int CalendarBox::Inner::rowsTop() const {
return _st.padding.top();
}
void CalendarBox::Inner::paintRows(QPainter &p, QRect clip) {
p.setFont(st::calendarDaysFont);
auto y = rowsTop();
auto index = -_context->daysShift();
const auto selectionMode = _context->selectionMode();
const auto impossible = index - 45;
const auto selectedMin = _context->selectedMin().value_or(impossible);
const auto selectedMax = _context->selectedMax().value_or(impossible);
const auto highlightedIndex = selectionMode
? impossible
: _context->highlightedIndex();
const auto daysCount = _context->daysCount();
const auto rowsCount = _context->rowsCount();
const auto rowHeight = _st.cellSize.height();
const auto fromRow = std::max(clip.y() - y, 0) / rowHeight;
const auto tillRow = std::min(
(clip.y() + clip.height() + rowHeight - 1) / rowHeight,
rowsCount);
y += fromRow * rowHeight;
index += fromRow * kDaysInWeek;
const auto innerSkipLeft = (_st.cellSize.width() - _st.cellInner) / 2;
const auto innerSkipTop = (_st.cellSize.height() - _st.cellInner) / 2;
for (auto row = fromRow; row != tillRow; ++row, y += rowHeight) {
auto x = rowsLeft();
const auto fromIndex = index;
const auto tillIndex = (index + kDaysInWeek);
const auto selectedFrom = std::max(fromIndex, selectedMin);
const auto selectedTill = std::min(tillIndex, selectedMax + 1);
const auto selectedInRow = (selectedTill - selectedFrom);
if (selectedInRow > 0) {
auto hq = PainterHighQualityEnabler(p);
p.setPen(Qt::NoPen);
p.setBrush(st::activeButtonBg);
p.drawRoundedRect(
(x
+ (selectedFrom - index) * _st.cellSize.width()
+ innerSkipLeft
- st::lineWidth),
y + innerSkipTop - st::lineWidth,
((selectedInRow - 1) * _st.cellSize.width()
+ 2 * st::lineWidth
+ _st.cellInner),
_st.cellInner + 2 * st::lineWidth,
(_st.cellInner / 2.) + st::lineWidth,
(_st.cellInner / 2.) + st::lineWidth);
p.setBrush(Qt::NoBrush);
}
for (auto col = 0; col != kDaysInWeek; ++col, ++index, x += _st.cellSize.width()) {
const auto rect = myrtlrect(x, y, _st.cellSize.width(), _st.cellSize.height());
const auto selected = (index >= selectedMin) && (index <= selectedMax);
const auto grayedOut = !selected && (index < 0 || index >= daysCount);
const auto highlighted = (index == highlightedIndex);
const auto enabled = _context->isEnabled(index);
const auto innerLeft = x + innerSkipLeft;
const auto innerTop = y + innerSkipTop;
if (highlighted) {
auto hq = PainterHighQualityEnabler(p);
p.setPen(Qt::NoPen);
p.setBrush(grayedOut ? st::windowBgOver : st::dialogsBgActive);
p.drawEllipse(myrtlrect(innerLeft, innerTop, _st.cellInner, _st.cellInner));
p.setBrush(Qt::NoBrush);
}
const auto it = _ripples.find(index);
if (it != _ripples.cend() && !selectionMode) {
const auto colorOverride = (!highlighted
? _styleColors.rippleColor
: grayedOut
? _styleColors.rippleGrayedOutColor
: _styleColors.rippleColorHighlighted)->c;
it->second->paint(p, innerLeft, innerTop, width(), &colorOverride);
if (it->second->empty()) {
_ripples.erase(it);
}
}
p.setPen(selected
? st::activeButtonFg
: highlighted
? (grayedOut
? _styleColors.dayTextGrayedOutColor
: st::dialogsNameFgActive)
: enabled
? (grayedOut
? _styleColors.dayTextGrayedOutColor
: _styleColors.dayTextColor)
: st::windowSubTextFg);
p.drawText(rect, _context->labelFromIndex(index), style::al_center);
}
}
}
void CalendarBox::Inner::mouseMoveEvent(QMouseEvent *e) {
const auto globalPosition = e->globalPos();
_mouseMoved = (_lastGlobalPosition != globalPosition);
_lastGlobalPosition = globalPosition;
const auto size = _st.cellSize;
const auto point = e->pos();
const auto inner = QRect(
rowsLeft(),
rowsTop(),
kDaysInWeek * size.width(),
_context->rowsCount() * size.height());
if (inner.contains(point)) {
const auto row = (point.y() - rowsTop()) / size.height();
const auto col = (point.x() - rowsLeft()) / size.width();
const auto index = row * kDaysInWeek + col - _context->daysShift();
setSelected(index);
} else {
setSelected(kEmptySelection);
}
if (_pressed != kEmptySelection && _context->selectionMode()) {
const auto row = (point.y() >= rowsTop())
? (point.y() - rowsTop()) / size.height()
: -1;
const auto col = (point.y() < rowsTop())
? 0
: (point.x() >= rowsLeft())
? std::min(
(point.x() - rowsLeft()) / size.width(),
kDaysInWeek - 1)
: 0;
const auto index = row * kDaysInWeek + col - _context->daysShift();
_context->updateSelection(index);
}
}
void CalendarBox::Inner::setSelected(int selected) {
if (selected != kEmptySelection && !_context->isEnabled(selected)) {
selected = kEmptySelection;
}
_selected = selected;
const auto pointer = (_selected != kEmptySelection);
const auto force = (_mouseMoved && _cursorSetWithoutMouseMove);
if (_pointerCursor != pointer || force) {
if (force) {
// Workaround some strange bug. When I call setCursor while
// scrolling by touchpad the new cursor is not applied and
// then it is not applied until it is changed.
setCursor(pointer ? style::cur_default : style::cur_pointer);
}
setCursor(pointer ? style::cur_pointer : style::cur_default);
_cursorSetWithoutMouseMove = !_mouseMoved;
_pointerCursor = pointer;
}
_mouseMoved = false;
}
void CalendarBox::Inner::mousePressEvent(QMouseEvent *e) {
setPressed(_selected);
if (_selected != kEmptySelection) {
auto index = _selected + _context->daysShift();
Assert(index >= 0);
auto row = index / kDaysInWeek;
auto col = index % kDaysInWeek;
auto cell = QRect(rowsLeft() + col * _st.cellSize.width(), rowsTop() + row * _st.cellSize.height(), _st.cellSize.width(), _st.cellSize.height());
auto it = _ripples.find(_selected);
if (it == _ripples.cend()) {
auto mask = RippleAnimation::EllipseMask(QSize(_st.cellInner, _st.cellInner));
auto update = [this, cell] { rtlupdate(cell); };
it = _ripples.emplace(_selected, std::make_unique<RippleAnimation>(st::defaultRippleAnimation, std::move(mask), std::move(update))).first;
}
auto ripplePosition = QPoint(cell.x() + (_st.cellSize.width() - _st.cellInner) / 2, cell.y() + (_st.cellSize.height() - _st.cellInner) / 2);
it->second->add(e->pos() - ripplePosition);
if (_context->selectionMode()) {
if (_context->selectedMin().has_value()
&& ((e->modifiers() & Qt::ShiftModifier)
|| (_twoPressSelectionStarted
&& (_context->selectedMin()
== _context->selectedMax())))) {
_context->updateSelection(_selected);
_twoPressSelectionStarted = false;
} else {
_context->startSelection(_selected);
_twoPressSelectionStarted = true;
}
}
}
}
void CalendarBox::Inner::mouseReleaseEvent(QMouseEvent *e) {
auto pressed = _pressed;
setPressed(kEmptySelection);
if (pressed != kEmptySelection
&& pressed == _selected
&& !_context->selectionMode()) {
crl::on_main(this, [=] {
const auto onstack = _dateChosenCallback;
onstack(_context->dateFromIndex(pressed));
});
}
}
void CalendarBox::Inner::setPressed(int pressed) {
if (_pressed != pressed) {
if (_pressed != kEmptySelection) {
auto it = _ripples.find(_pressed);
if (it != _ripples.cend()) {
it->second->lastStop();
}
}
_pressed = pressed;
}
}
int CalendarBox::Inner::countMaxHeight() const {
const auto innerHeight = _context->rowsCountMax() * _st.cellSize.height();
return _st.padding.top()
+ innerHeight
+ _st.padding.bottom();
}
void CalendarBox::Inner::setDateChosenCallback(Fn<void(QDate)> callback) {
_dateChosenCallback = std::move(callback);
}
CalendarBox::Inner::~Inner() = default;
class CalendarBox::Title final : public RpWidget {
public:
Title(
QWidget *parent,
not_null<Context*> context,
const style::CalendarSizes &st,
const style::CalendarColors &styleColors);
protected:
void paintEvent(QPaintEvent *e);
private:
void setTextFromMonth(QDate month);
void setText(QString text);
void paintDayNames(Painter &p, QRect clip);
const style::CalendarSizes &_st;
const style::CalendarColors &_styleColors;
const not_null<Context*> _context;
QString _text;
int _textWidth = 0;
int _textLeft = 0;
};
CalendarBox::Title::Title(
QWidget *parent,
not_null<Context*> context,
const style::CalendarSizes &st,
const style::CalendarColors &styleColors)
: RpWidget(parent)
, _st(st)
, _styleColors(styleColors)
, _context(context) {
const auto dayWidth = st::calendarDaysFont->width(langDayOfWeek(1));
_textLeft = _st.padding.left() + (_st.cellSize.width() - dayWidth) / 2;
_context->monthValue(
) | rpl::filter([=] {
return !_context->selectionMode();
}) | rpl::start_with_next([=](QDate date) {
setTextFromMonth(date);
}, lifetime());
_context->selectionUpdates(
) | rpl::start_with_next([=] {
if (!_context->selectionMode()) {
setTextFromMonth(_context->month());
} else if (!_context->selectedMin()) {
setText(tr::lng_calendar_select_days(tr::now));
} else {
setText(tr::lng_calendar_days(
tr::now,
lt_count,
(1 + *_context->selectedMax() - *_context->selectedMin())));
}
}, lifetime());
}
void CalendarBox::Title::setTextFromMonth(QDate month) {
setText(langMonthOfYearFull(month.month(), month.year()));
}
void CalendarBox::Title::setText(QString text) {
_text = std::move(text);
_textWidth = st::calendarTitleFont->width(_text);
update();
}
void CalendarBox::Title::paintEvent(QPaintEvent *e) {
Painter p(this);
const auto clip = e->rect();
p.setFont(st::calendarTitleFont);
p.setPen(_styleColors.titleTextColor);
p.drawTextLeft(
_textLeft,
(st::calendarTitleHeight - st::calendarTitleFont->height) / 2,
width(),
_text,
_textWidth);
paintDayNames(p, clip);
}
void CalendarBox::Title::paintDayNames(Painter &p, QRect clip) {
p.setFont(st::calendarDaysFont);
p.setPen(st::calendarDaysFg);
auto y = st::calendarTitleHeight + _st.padding.top();
auto x = _st.padding.left();
if (!myrtlrect(x, y, _st.cellSize.width() * kDaysInWeek, _st.daysHeight).intersects(clip)) {
return;
}
for (auto i = 0; i != kDaysInWeek; ++i, x += _st.cellSize.width()) {
auto rect = myrtlrect(x, y, _st.cellSize.width(), _st.daysHeight);
if (!rect.intersects(clip)) {
continue;
}
p.drawText(rect, langDayOfWeek(i + 1), style::al_top);
}
}
CalendarBox::CalendarBox(QWidget*, CalendarBoxArgs &&args)
: _st(args.st)
, _styleColors(args.stColors)
, _context(
std::make_unique<Context>(args.month.value(), args.highlighted.value()))
, _scroll(std::make_unique<ScrollArea>(this, st::calendarScroll))
, _inner(_scroll->setOwnedWidget(object_ptr<Inner>(
this,
_context.get(),
_st,
_styleColors)))
, _title(this, _context.get(), _st, _styleColors)
, _previous(this, _styleColors.iconButtonPrevious)
, _next(this, _styleColors.iconButtonNext)
, _callback(std::move(args.callback.value()))
, _finalize(std::move(args.finalize))
, _jumpTimer([=] { jump(_jumpButton); })
, _selectionChanged(std::move(args.selectionChanged)) {
_title->setAttribute(Qt::WA_TransparentForMouseEvents);
_context->setAllowsSelection(args.allowsSelection);
_context->setMinDate(args.minDate);
_context->setMaxDate(args.maxDate);
_scroll->scrolls(
) | rpl::filter([=] {
return _watchScroll;
}) | rpl::start_with_next([=] {
processScroll();
}, lifetime());
const auto setupJumps = [&](
not_null<IconButton*> button,
not_null<bool*> enabled) {
button->events(
) | rpl::filter([=] {
return *enabled;
}) | rpl::start_with_next([=](not_null<QEvent*> e) {
const auto type = e->type();
if (type == QEvent::MouseMove
&& !(static_cast<QMouseEvent*>(e.get())->buttons()
& Qt::LeftButton)) {
showJumpTooltip(button);
} else if (type == QEvent::Leave) {
Ui::Tooltip::Hide();
} else if (type == QEvent::MouseButtonPress
&& (static_cast<QMouseEvent*>(e.get())->button()
== Qt::LeftButton)) {
jumpAfterDelay(button);
} else if (type == QEvent::MouseButtonRelease
&& (static_cast<QMouseEvent*>(e.get())->button()
== Qt::LeftButton)) {
_jumpTimer.cancel();
}
}, lifetime());
};
setupJumps(_previous.data(), &_previousEnabled);
setupJumps(_next.data(), &_nextEnabled);
_context->selectionUpdates(
) | rpl::start_with_next([=] {
if (!_context->selectionMode()) {
_floatingDate = nullptr;
} else if (!_floatingDate) {
_floatingDate = std::make_unique<FloatingDate>(
this,
_context.get());
rpl::combine(
_scroll->geometryValue(),
_floatingDate->widthValue()
) | rpl::start_with_next([=](QRect scroll, int width) {
const auto shift = _st.daysHeight
- _st.padding.top()
- st::calendarDaysFont->height;
_floatingDate->move(
scroll.x() + (scroll.width() - width) / 2,
scroll.y() - shift);
}, _floatingDate->lifetime());
}
}, lifetime());
}
CalendarBox::~CalendarBox() = default;
void CalendarBox::toggleSelectionMode(bool enabled) {
_context->toggleSelectionMode(enabled);
}
QDate CalendarBox::selectedFirstDate() const {
const auto min = _context->selectedMin();
return min.has_value() ? _context->dateFromIndex(*min) : QDate();
}
QDate CalendarBox::selectedLastDate() const {
const auto max = _context->selectedMax();
return max.has_value() ? _context->dateFromIndex(*max) : QDate();
}
void CalendarBox::showJumpTooltip(not_null<IconButton*> button) {
_tooltipButton = button;
Ui::Tooltip::Show(kTooltipDelay, this);
}
void CalendarBox::jumpAfterDelay(not_null<IconButton*> button) {
_jumpButton = button;
_jumpTimer.callOnce(kJumpDelay);
Ui::Tooltip::Hide();
}
void CalendarBox::jump(QPointer<IconButton> button) {
const auto jumpToIndex = [&](int index) {
_watchScroll = false;
_context->showMonth(_context->dateFromIndex(index));
setExactScroll();
};
if (button == _previous.data() && _previousEnabled) {
jumpToIndex(_context->minDayIndex());
} else if (button == _next.data() && _nextEnabled) {
jumpToIndex(_context->maxDayIndex());
}
_jumpButton = nullptr;
_jumpTimer.cancel();
}
void CalendarBox::prepare() {
_previous->setClickedCallback([=] { goPreviousMonth(); });
_next->setClickedCallback([=] { goNextMonth(); });
_inner->setDateChosenCallback(std::move(_callback));
_context->monthValue(
) | rpl::start_with_next([=](QDate month) {
monthChanged(month);
}, lifetime());
setExactScroll();
_context->selectionUpdates(
) | rpl::start_with_next([=] {
_selectionMode = _context->selectionMode();
if (_selectionChanged) {
const auto count = !_selectionMode
? std::optional<int>()
: !_context->selectedMin()
? 0
: (1 + *_context->selectedMax() - *_context->selectedMin());
_selectionChanged(this, count);
}
if (!_selectionMode) {
clearButtons();
createButtons();
}
}, lifetime());
createButtons();
if (_finalize) {
_finalize(this);
}
}
bool CalendarBox::isPreviousEnabled() const {
return (_context->minDayIndex() < 0);
}
bool CalendarBox::isNextEnabled() const {
return (_context->maxDayIndex() >= _context->daysCount());
}
void CalendarBox::goPreviousMonth() {
if (isPreviousEnabled()) {
_watchScroll = false;
_context->skipMonth(-1);
setExactScroll();
}
}
void CalendarBox::goNextMonth() {
if (isNextEnabled()) {
_watchScroll = false;
_context->skipMonth(1);
setExactScroll();
}
}
void CalendarBox::setExactScroll() {
const auto top = _st.padding.top()
+ (_context->daysShift() / kDaysInWeek) * _st.cellSize.height();
_scroll->scrollToY(top);
_watchScroll = true;
}
void CalendarBox::processScroll() {
const auto wasTop = _scroll->scrollTop();
const auto wasShift = _context->daysShift();
const auto point = _scroll->rect().center() + QPoint(0, wasTop);
const auto row = (point.y() - _st.padding.top()) / _st.cellSize.height();
const auto col = (point.x() - _st.padding.left()) / _st.cellSize.width();
const auto index = row * kDaysInWeek + col;
const auto date = _context->dateFromIndex(index - wasShift);
if (_context->showsMonthOf(date)) {
return;
}
const auto wasFirst = _context->dateFromIndex(-wasShift);
const auto month = QDate(date.year(), date.month(), 1);
_watchScroll = false;
_context->showMonth(month);
const auto nowShift = _context->daysShift();
const auto nowFirst = _context->dateFromIndex(-nowShift);
const auto delta = nowFirst.daysTo(wasFirst) / kDaysInWeek;
_scroll->scrollToY(wasTop + delta * _st.cellSize.height());
_watchScroll = true;
}
void CalendarBox::createButtons() {
if (!_context->allowsSelection()) {
addButton(tr::lng_close(), [=] { closeBox(); });
} else if (!_context->selectionMode()) {
addButton(tr::lng_close(), [=] { closeBox(); });
addLeftButton(tr::lng_calendar_select_days(), [=] {
_context->toggleSelectionMode(true);
});
} else {
addButton(tr::lng_cancel(), [=] {
_context->toggleSelectionMode(false);
});
}
}
QString CalendarBox::tooltipText() const {
if (_tooltipButton == _previous.data()) {
return tr::lng_calendar_start_tip(tr::now);
} else if (_tooltipButton == _next.data()) {
return tr::lng_calendar_end_tip(tr::now);
}
return QString();
}
QPoint CalendarBox::tooltipPos() const {
return QCursor::pos();
}
bool CalendarBox::tooltipWindowActive() const {
return window()->isActiveWindow();
}
void CalendarBox::monthChanged(QDate month) {
setDimensions(
_st.width,
st::calendarTitleHeight + _st.daysHeight + _inner->countMaxHeight());
_previousEnabled = isPreviousEnabled();
_previous->setIconOverride(_previousEnabled
? nullptr
: &_styleColors.iconButtonPreviousDisabled);
_previous->setRippleColorOverride(_previousEnabled
? nullptr
: &_styleColors.iconButtonRippleColorDisabled);
_previous->setPointerCursor(_previousEnabled);
if (!_previousEnabled) {
_previous->clearState();
}
_nextEnabled = isNextEnabled();
_next->setIconOverride(_nextEnabled
? nullptr
: &_styleColors.iconButtonNextDisabled);
_next->setRippleColorOverride(_nextEnabled
? nullptr
: &_styleColors.iconButtonRippleColorDisabled);
_next->setPointerCursor(_nextEnabled);
if (!_nextEnabled) {
_next->clearState();
}
}
void CalendarBox::resizeEvent(QResizeEvent *e) {
const auto dayWidth = st::calendarDaysFont->width(langDayOfWeek(7));
const auto skip = _st.padding.left()
+ _st.cellSize.width() * (kDaysInWeek - 1)
+ (_st.cellSize.width() - dayWidth) / 2
+ dayWidth;
const auto right = width() - skip;
const auto shift = _next->width()
- (_next->width() - st::calendarPrevious.icon.width()) / 2
- st::calendarPrevious.icon.width();
_next->moveToRight(right - shift, 0);
_previous->moveToRight(right - shift + _next->width(), 0);
const auto title = st::calendarTitleHeight + _st.daysHeight;
_title->setGeometryToLeft(0, 0, width(), title);
_scroll->setGeometryToLeft(0, title, width(), height() - title);
BoxContent::resizeEvent(e);
}
void CalendarBox::keyPressEvent(QKeyEvent *e) {
if (e->key() == Qt::Key_Escape) {
if (_context->selectionMode()) {
_context->toggleSelectionMode(false);
} else {
e->ignore();
}
} else if (e->key() == Qt::Key_Home) {
jump(_previous.data());
} else if (e->key() == Qt::Key_End) {
jump(_next.data());
} else if (e->key() == Qt::Key_Left
|| e->key() == Qt::Key_Up
|| e->key() == Qt::Key_PageUp) {
goPreviousMonth();
} else if (e->key() == Qt::Key_Right
|| e->key() == Qt::Key_Down
|| e->key() == Qt::Key_PageDown) {
goNextMonth();
}
}
} // namespace Ui