68 lines
1.7 KiB
C++
68 lines
1.7 KiB
C++
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/*
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This file is part of Telegram Desktop,
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the official desktop application for the Telegram messaging service.
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For license and copyright information please follow this link:
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https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
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*/
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#include "ui/controls/jump_down_button.h"
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#include "ui/effects/ripple_animation.h"
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#include "ui/unread_badge_paint.h"
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#include "styles/style_chat.h"
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namespace Ui {
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JumpDownButton::JumpDownButton(
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QWidget *parent,
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const style::TwoIconButton &st)
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: RippleButton(parent, st.ripple)
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, _st(st) {
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resize(_st.width, _st.height);
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setCursor(style::cur_pointer);
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hide();
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}
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QImage JumpDownButton::prepareRippleMask() const {
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return Ui::RippleAnimation::EllipseMask(
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QSize(_st.rippleAreaSize, _st.rippleAreaSize));
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}
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QPoint JumpDownButton::prepareRippleStartPosition() const {
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return mapFromGlobal(QCursor::pos()) - _st.rippleAreaPosition;
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}
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void JumpDownButton::paintEvent(QPaintEvent *e) {
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auto p = QPainter(this);
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const auto over = isOver();
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const auto down = isDown();
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((over || down)
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? _st.iconBelowOver
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: _st.iconBelow).paint(p, _st.iconPosition, width());
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paintRipple(p, _st.rippleAreaPosition.x(), _st.rippleAreaPosition.y());
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((over || down)
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? _st.iconAboveOver
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: _st.iconAbove).paint(p, _st.iconPosition, width());
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if (_unreadCount > 0) {
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auto unreadString = QString::number(_unreadCount);
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Ui::UnreadBadgeStyle st;
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st.align = style::al_center;
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st.font = st::historyToDownBadgeFont;
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st.size = st::historyToDownBadgeSize;
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st.sizeId = Ui::UnreadBadgeSize::HistoryToDown;
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Ui::PaintUnreadBadge(p, unreadString, width(), 0, st, 4);
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}
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}
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void JumpDownButton::setUnreadCount(int unreadCount) {
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if (_unreadCount != unreadCount) {
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_unreadCount = unreadCount;
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update();
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}
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}
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} // namespace Ui
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