tdesktop/Telegram/SourceFiles/ui/toast/toast_widget.cpp
2019-10-01 23:59:46 +03:00

72 lines
2.2 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/toast/toast_widget.h"
#include "ui/image/image_prepare.h"
#include "app.h"
namespace Ui {
namespace Toast {
namespace internal {
Widget::Widget(QWidget *parent, const Config &config) : TWidget(parent)
, _multiline(config.multiline)
, _maxWidth((config.maxWidth > 0) ? config.maxWidth : st::toastMaxWidth)
, _padding((config.padding.left() > 0) ? config.padding : st::toastPadding)
, _maxTextWidth(widthWithoutPadding(_maxWidth))
, _maxTextHeight(
st::toastTextStyle.font->height * (_multiline ? config.maxLines : 1))
, _text(_multiline ? widthWithoutPadding(config.minWidth) : QFIXED_MAX) {
const auto toastOptions = TextParseOptions{
TextParseMultiline,
_maxTextWidth,
_maxTextHeight,
Qt::LayoutDirectionAuto
};
_text.setText(
st::toastTextStyle,
_multiline ? config.text : TextUtilities::SingleLine(config.text),
toastOptions);
setAttribute(Qt::WA_TransparentForMouseEvents);
onParentResized();
show();
}
void Widget::onParentResized() {
auto newWidth = _maxWidth;
accumulate_min(newWidth, _padding.left() + _text.maxWidth() + _padding.right());
accumulate_min(newWidth, parentWidget()->width() - 2 * st::toastMinMargin);
_textWidth = widthWithoutPadding(newWidth);
const auto textHeight = _multiline
? qMin(_text.countHeight(_textWidth), _maxTextHeight)
: _text.minHeight();
const auto newHeight = _padding.top() + textHeight + _padding.bottom();
setGeometry((parentWidget()->width() - newWidth) / 2, (parentWidget()->height() - newHeight) / 2, newWidth, newHeight);
}
void Widget::setShownLevel(float64 shownLevel) {
_shownLevel = shownLevel;
}
void Widget::paintEvent(QPaintEvent *e) {
Painter p(this);
PainterHighQualityEnabler hq(p);
p.setOpacity(_shownLevel);
App::roundRect(p, rect(), st::toastBg, ImageRoundRadius::Large);
const auto lines = _maxTextHeight / st::toastTextStyle.font->height;
p.setPen(st::toastFg);
_text.drawElided(p, _padding.left(), _padding.top(), _textWidth + 1, lines);
}
} // namespace internal
} // namespace Toast
} // namespace Ui