134 lines
3.7 KiB
C++
134 lines
3.7 KiB
C++
// This file is part of Desktop App Toolkit,
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// a set of libraries for developing nice desktop applications.
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//
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// For license and copyright information please follow this link:
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// https://github.com/desktop-app/legal/blob/master/LEGAL
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//
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#include "ui/toast/toast_widget.h"
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#include "ui/image/image_prepare.h"
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#include "styles/palette.h"
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#include <QtGui/QtEvents>
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namespace Ui {
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namespace Toast {
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namespace internal {
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Widget::Widget(QWidget *parent, const Config &config)
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: TWidget(parent)
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, _roundRect(ImageRoundRadius::Large, st::toastBg)
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, _multiline(config.multiline)
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, _dark(config.dark)
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, _maxWidth((config.maxWidth > 0) ? config.maxWidth : st::toastMaxWidth)
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, _padding((config.padding.left() > 0) ? config.padding : st::toastPadding)
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, _maxTextWidth(widthWithoutPadding(_maxWidth))
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, _maxTextHeight(
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st::toastTextStyle.font->height * (_multiline ? config.maxLines : 1))
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, _text(_multiline ? widthWithoutPadding(config.minWidth) : QFIXED_MAX)
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, _clickHandlerFilter(config.filter) {
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const auto toastOptions = TextParseOptions{
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TextParseMultiline,
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_maxTextWidth,
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_maxTextHeight,
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Qt::LayoutDirectionAuto
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};
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_text.setMarkedText(
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st::toastTextStyle,
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_multiline ? config.text : TextUtilities::SingleLine(config.text),
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toastOptions);
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if (_text.hasLinks()) {
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setMouseTracking(true);
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} else {
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setAttribute(Qt::WA_TransparentForMouseEvents);
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}
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onParentResized();
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show();
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}
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void Widget::onParentResized() {
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auto newWidth = _maxWidth;
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accumulate_min(newWidth, _padding.left() + _text.maxWidth() + _padding.right());
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accumulate_min(newWidth, parentWidget()->width() - 2 * st::toastMinMargin);
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_textWidth = widthWithoutPadding(newWidth);
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const auto textHeight = _multiline
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? qMin(_text.countHeight(_textWidth), _maxTextHeight)
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: _text.minHeight();
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const auto newHeight = _padding.top() + textHeight + _padding.bottom();
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setGeometry((parentWidget()->width() - newWidth) / 2, (parentWidget()->height() - newHeight) / 2, newWidth, newHeight);
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}
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void Widget::setShownLevel(float64 shownLevel) {
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_shownLevel = shownLevel;
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}
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void Widget::paintEvent(QPaintEvent *e) {
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Painter p(this);
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PainterHighQualityEnabler hq(p);
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p.setOpacity(_shownLevel);
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_roundRect.paint(p, rect());
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if (_dark) {
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_roundRect.paint(p, rect());
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}
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p.setTextPalette(st::toastTextPalette);
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const auto lines = _maxTextHeight / st::toastTextStyle.font->height;
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p.setPen(st::toastFg);
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_text.drawElided(p, _padding.left(), _padding.top(), _textWidth + 1, lines);
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}
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void Widget::leaveEventHook(QEvent *e) {
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if (!_text.hasLinks()) {
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return;
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}
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if (ClickHandler::getActive()) {
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ClickHandler::setActive(nullptr);
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setCursor(style::cur_default);
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update();
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}
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}
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void Widget::mouseMoveEvent(QMouseEvent *e) {
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if (!_text.hasLinks()) {
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return;
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}
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const auto point = e->pos() - QPoint(_padding.left(), _padding.top());
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const auto lines = _maxTextHeight / st::toastTextStyle.font->height;
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const auto state = _text.getStateElided(point, _textWidth + 1);
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const auto was = ClickHandler::getActive();
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if (was != state.link) {
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ClickHandler::setActive(state.link);
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if ((was != nullptr) != (state.link != nullptr)) {
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setCursor(was ? style::cur_default : style::cur_pointer);
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}
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update();
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}
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}
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void Widget::mousePressEvent(QMouseEvent *e) {
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if (!_text.hasLinks() || e->button() != Qt::LeftButton) {
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return;
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}
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ClickHandler::pressed();
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}
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void Widget::mouseReleaseEvent(QMouseEvent *e) {
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if (!_text.hasLinks() || e->button() != Qt::LeftButton) {
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return;
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}
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if (const auto handler = ClickHandler::unpressed()) {
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const auto button = e->button();
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if (!_clickHandlerFilter
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|| _clickHandlerFilter(handler, button)) {
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ActivateClickHandler(this, handler, button);
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}
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}
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}
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} // namespace internal
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} // namespace Toast
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} // namespace Ui
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