tdesktop/Telegram/SourceFiles/boxes/abstractbox.cpp

375 lines
12 KiB
C++

/*
This file is part of Telegram Desktop,
the official desktop version of Telegram messaging app, see https://telegram.org
Telegram Desktop is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
It is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
In addition, as a special exception, the copyright holders give permission
to link the code of portions of this program with the OpenSSL library.
Full license: https://github.com/telegramdesktop/tdesktop/blob/master/LICENSE
Copyright (c) 2014-2017 John Preston, https://desktop.telegram.org
*/
#include "boxes/abstractbox.h"
#include "styles/style_boxes.h"
#include "storage/localstorage.h"
#include "lang.h"
#include "ui/effects/widget_fade_wrap.h"
#include "ui/widgets/buttons.h"
#include "ui/widgets/scroll_area.h"
#include "mainwidget.h"
#include "mainwindow.h"
BoxLayerTitleShadow::BoxLayerTitleShadow(QWidget *parent) : Ui::PlainShadow(parent, st::boxLayerTitleShadow) {
}
QPointer<Ui::RoundButton> BoxContent::addButton(const QString &text, base::lambda<void()> clickCallback) {
return addButton(text, std::move(clickCallback), st::defaultBoxButton);
}
QPointer<Ui::RoundButton> BoxContent::addLeftButton(const QString &text, base::lambda<void()> clickCallback) {
return getDelegate()->addLeftButton(text, std::move(clickCallback), st::defaultBoxButton);
}
void BoxContent::setInner(object_ptr<TWidget> inner) {
setInner(std::move(inner), st::boxLayerScroll);
}
void BoxContent::setInner(object_ptr<TWidget> inner, const style::ScrollArea &st) {
if (inner) {
getDelegate()->setLayerType(true);
_scroll.create(this, st);
_scroll->setGeometryToLeft(0, _innerTopSkip, width(), 0);
_scroll->setOwnedWidget(std::move(inner));
if (_topShadow) {
_topShadow->raise();
_bottomShadow->raise();
} else {
_topShadow.create(this, object_ptr<BoxLayerTitleShadow>(this));
_bottomShadow.create(this, object_ptr<BoxLayerTitleShadow>(this));
}
updateScrollAreaGeometry();
connect(_scroll, SIGNAL(scrolled()), this, SLOT(onScroll()));
connect(_scroll, SIGNAL(innerResized()), this, SLOT(onInnerResize()));
} else {
getDelegate()->setLayerType(false);
_scroll.destroyDelayed();
_topShadow.destroyDelayed();
_bottomShadow.destroyDelayed();
}
}
void BoxContent::onScrollToY(int top, int bottom) {
if (_scroll) {
_scroll->scrollToY(top, bottom);
}
}
void BoxContent::onDraggingScrollDelta(int delta) {
_draggingScrollDelta = _scroll ? delta : 0;
if (_draggingScrollDelta) {
if (!_draggingScrollTimer) {
_draggingScrollTimer.create(this);
_draggingScrollTimer->setSingleShot(false);
connect(_draggingScrollTimer, SIGNAL(timeout()), this, SLOT(onDraggingScrollTimer()));
}
_draggingScrollTimer->start(15);
} else {
_draggingScrollTimer.destroy();
}
}
void BoxContent::onDraggingScrollTimer() {
auto delta = (_draggingScrollDelta > 0) ? qMin(_draggingScrollDelta * 3 / 20 + 1, int32(MaxScrollSpeed)) : qMax(_draggingScrollDelta * 3 / 20 - 1, -int32(MaxScrollSpeed));
_scroll->scrollToY(_scroll->scrollTop() + delta);
}
void BoxContent::updateInnerVisibleTopBottom() {
if (auto widget = static_cast<TWidget*>(_scroll ? _scroll->widget() : nullptr)) {
auto top = _scroll->scrollTop();
widget->setVisibleTopBottom(top, top + _scroll->height());
}
}
void BoxContent::updateShadowsVisibility() {
if (!_scroll) return;
auto top = _scroll->scrollTop();
if (top > 0 || _innerTopSkip > 0) {
_topShadow->showAnimated();
} else {
_topShadow->hideAnimated();
}
if (top < _scroll->scrollTopMax()) {
_bottomShadow->showAnimated();
} else {
_bottomShadow->hideAnimated();
}
}
void BoxContent::onScroll() {
updateInnerVisibleTopBottom();
updateShadowsVisibility();
}
void BoxContent::onInnerResize() {
updateInnerVisibleTopBottom();
updateShadowsVisibility();
}
void BoxContent::setInnerTopSkip(int innerTopSkip, bool scrollBottomFixed) {
if (_innerTopSkip != innerTopSkip) {
auto delta = innerTopSkip - _innerTopSkip;
_innerTopSkip = innerTopSkip;
if (_scroll) {
auto scrollTopWas = _scroll->scrollTop();
updateScrollAreaGeometry();
if (scrollBottomFixed) {
_scroll->scrollToY(scrollTopWas + delta);
}
}
}
}
void BoxContent::setInnerVisible(bool scrollAreaVisible) {
if (_scroll) {
_scroll->setVisible(scrollAreaVisible);
}
}
QPixmap BoxContent::grabInnerCache() {
auto isTopShadowVisible = !_topShadow->isHidden();
auto isBottomShadowVisible = !_bottomShadow->isHidden();
if (isTopShadowVisible) _topShadow->hide();
if (isBottomShadowVisible) _bottomShadow->hide();
auto result = myGrab(this, _scroll->geometry());
if (isTopShadowVisible) _topShadow->show();
if (isBottomShadowVisible) _bottomShadow->show();
return result;
}
void BoxContent::resizeEvent(QResizeEvent *e) {
if (_scroll) {
updateScrollAreaGeometry();
}
}
void BoxContent::updateScrollAreaGeometry() {
auto newScrollHeight = height() - _innerTopSkip;
auto changed = (_scroll->height() != newScrollHeight);
_scroll->setGeometryToLeft(0, _innerTopSkip, width(), newScrollHeight);
_topShadow->entity()->resize(width(), st::lineWidth);
_topShadow->moveToLeft(0, _innerTopSkip);
_bottomShadow->entity()->resize(width(), st::lineWidth);
_bottomShadow->moveToLeft(0, height() - st::lineWidth);
if (changed) {
updateInnerVisibleTopBottom();
auto top = _scroll->scrollTop();
_topShadow->toggleFast(top > 0 || _innerTopSkip > 0);
_bottomShadow->toggleFast(top < _scroll->scrollTopMax());
}
}
object_ptr<TWidget> BoxContent::doTakeInnerWidget() {
return _scroll->takeWidget<TWidget>();
}
void BoxContent::paintEvent(QPaintEvent *e) {
Painter p(this);
if (testAttribute(Qt::WA_OpaquePaintEvent)) {
for (auto rect : e->region().rects()) {
p.fillRect(rect, st::boxBg);
}
}
}
AbstractBox::AbstractBox(QWidget *parent, object_ptr<BoxContent> content) : LayerWidget(parent)
, _content(std::move(content)) {
_content->setParent(this);
_content->setDelegate(this);
}
void AbstractBox::setLayerType(bool layerType) {
_layerType = layerType;
}
int AbstractBox::titleHeight() const {
return _layerType ? st::boxLayerTitleHeight : st::boxTitleHeight;
}
int AbstractBox::buttonsHeight() const {
auto padding = _layerType ? st::boxLayerButtonPadding : st::boxButtonPadding;
return padding.top() + st::defaultBoxButton.height + padding.bottom();
}
int AbstractBox::buttonsTop() const {
auto padding = _layerType ? st::boxLayerButtonPadding : st::boxButtonPadding;
return height() - padding.bottom() - st::defaultBoxButton.height;
}
void AbstractBox::paintEvent(QPaintEvent *e) {
Painter p(this);
auto clip = e->rect();
auto paintTopRounded = clip.intersects(QRect(0, 0, width(), st::boxRadius));
auto paintBottomRounded = clip.intersects(QRect(0, height() - st::boxRadius, width(), st::boxRadius));
if (paintTopRounded || paintBottomRounded) {
auto parts = qFlags(App::RectPart::None);
if (paintTopRounded) parts |= App::RectPart::TopFull;
if (paintBottomRounded) parts |= App::RectPart::BottomFull;
App::roundRect(p, rect(), st::boxBg, BoxCorners, nullptr, parts);
}
auto other = e->region().intersected(QRect(0, st::boxRadius, width(), height() - 2 * st::boxRadius));
if (!other.isEmpty()) {
for (auto rect : other.rects()) {
p.fillRect(rect, st::boxBg);
}
}
if (!_title.isEmpty() && clip.intersects(QRect(0, 0, width(), titleHeight()))) {
paintTitle(p, _title, _additionalTitle);
}
}
void AbstractBox::paintTitle(Painter &p, const QString &title, const QString &additional) {
p.setFont(st::boxTitleFont);
p.setPen(st::boxTitleFg);
auto titleWidth = st::boxTitleFont->width(title);
auto titleLeft = _layerType ? st::boxLayerTitlePosition.x() : st::boxTitlePosition.x();
auto titleTop = _layerType ? st::boxLayerTitlePosition.y() : st::boxTitlePosition.y();
p.drawTextLeft(titleLeft, titleTop, width(), title, titleWidth);
if (!additional.isEmpty()) {
p.setFont(st::boxLayerTitleAdditionalFont);
p.setPen(st::boxTitleAdditionalFg);
p.drawTextLeft(titleLeft + titleWidth + st::boxLayerTitleAdditionalSkip, titleTop + st::boxTitleFont->ascent - st::boxLayerTitleAdditionalFont->ascent, width(), additional);
}
}
void AbstractBox::parentResized() {
auto newHeight = countRealHeight();
auto parentSize = parentWidget()->size();
setGeometry((parentSize.width() - width()) / 2, (parentSize.height() - newHeight) / 2, width(), newHeight);
update();
}
void AbstractBox::setTitle(const QString &title, const QString &additional) {
auto wasTitle = hasTitle();
_title = title;
_additionalTitle = additional;
update();
if (wasTitle != hasTitle()) {
updateSize();
}
}
bool AbstractBox::hasTitle() const {
return !_title.isEmpty() || !_additionalTitle.isEmpty();
}
void AbstractBox::updateSize() {
setDimensions(width(), _maxContentHeight);
}
void AbstractBox::updateButtonsPositions() {
if (!_buttons.empty() || _leftButton) {
auto padding = _layerType ? st::boxLayerButtonPadding : st::boxButtonPadding;
auto right = padding.right();
auto top = buttonsTop();
if (_leftButton) {
_leftButton->moveToLeft(right, top);
}
for_const (auto &button, _buttons) {
button->moveToRight(right, top);
right += button->width() + padding.left();
}
}
}
void AbstractBox::clearButtons() {
for (auto &button : base::take(_buttons)) {
button.destroy();
}
_leftButton.destroy();
}
QPointer<Ui::RoundButton> AbstractBox::addButton(const QString &text, base::lambda<void()> clickCallback, const style::RoundButton &st) {
_buttons.push_back(object_ptr<Ui::RoundButton>(this, text, st));
auto result = QPointer<Ui::RoundButton>(_buttons.back());
result->setClickedCallback(std::move(clickCallback));
result->show();
updateButtonsPositions();
return result;
}
QPointer<Ui::RoundButton> AbstractBox::addLeftButton(const QString &text, base::lambda<void()> clickCallback, const style::RoundButton &st) {
_leftButton = object_ptr<Ui::RoundButton>(this, text, st);
auto result = QPointer<Ui::RoundButton>(_leftButton);
result->setClickedCallback(std::move(clickCallback));
result->show();
updateButtonsPositions();
return result;
}
void AbstractBox::setDimensions(int newWidth, int maxHeight) {
_maxContentHeight = maxHeight;
auto fullHeight = countFullHeight();
if (width() != newWidth || _fullHeight != fullHeight) {
_fullHeight = fullHeight;
if (parentWidget()) {
auto oldGeometry = geometry();
resize(newWidth, countRealHeight());
auto newGeometry = geometry();
auto parentHeight = parentWidget()->height();
if (newGeometry.top() + newGeometry.height() + st::boxVerticalMargin > parentHeight) {
auto newTop = qMax(parentHeight - int(st::boxVerticalMargin) - newGeometry.height(), (parentHeight - newGeometry.height()) / 2);
if (newTop != newGeometry.top()) {
move(newGeometry.left(), newTop);
}
}
parentWidget()->update(oldGeometry.united(geometry()).marginsAdded(st::boxRoundShadow.extend));
} else {
resize(newWidth, 0);
}
}
}
int AbstractBox::countRealHeight() const {
return qMin(_fullHeight, parentWidget()->height() - 2 * st::boxVerticalMargin);
}
int AbstractBox::countFullHeight() const {
return contentTop() + _maxContentHeight + buttonsHeight();
}
int AbstractBox::contentTop() const {
return hasTitle() ? titleHeight() : (_noContentMargin ? 0 : st::boxTopMargin);
}
void AbstractBox::resizeEvent(QResizeEvent *e) {
updateButtonsPositions();
auto top = contentTop();
_content->resize(width(), height() - top - buttonsHeight());
_content->moveToLeft(0, top);
LayerWidget::resizeEvent(e);
}
void AbstractBox::keyPressEvent(QKeyEvent *e) {
if (e->key() == Qt::Key_Escape) {
closeBox();
} else {
LayerWidget::keyPressEvent(e);
}
}