08167a6a91
Currently the build without implicitly included precompiled header is not supported anyway (because Qt MOC source files do not include stdafx.h, they include plain headers). So when we decide to support building without implicitly included precompiled headers we'll have to fix all the headers anyway.
127 lines
3.6 KiB
C++
127 lines
3.6 KiB
C++
/*
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This file is part of Telegram Desktop,
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the official desktop version of Telegram messaging app, see https://telegram.org
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Telegram Desktop is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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It is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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In addition, as a special exception, the copyright holders give permission
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to link the code of portions of this program with the OpenSSL library.
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Full license: https://github.com/telegramdesktop/tdesktop/blob/master/LICENSE
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Copyright (c) 2014-2017 John Preston, https://desktop.telegram.org
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*/
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#include "ui/abstract_button.h"
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namespace Ui {
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void AbstractButton::leaveEventHook(QEvent *e) {
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if (_state & StateFlag::Down) return;
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setOver(false, StateChangeSource::ByHover);
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return TWidget::leaveEventHook(e);
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}
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void AbstractButton::enterEventHook(QEvent *e) {
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checkIfOver(mapFromGlobal(QCursor::pos()));
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return TWidget::enterEventHook(e);
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}
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void AbstractButton::setAcceptBoth(bool acceptBoth) {
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_acceptBoth = acceptBoth;
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}
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void AbstractButton::checkIfOver(QPoint localPos) {
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auto over = rect().marginsRemoved(getMargins()).contains(localPos);
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setOver(over, StateChangeSource::ByHover);
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}
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void AbstractButton::mousePressEvent(QMouseEvent *e) {
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checkIfOver(e->pos());
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if (_acceptBoth || (e->buttons() & Qt::LeftButton)) {
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if ((_state & StateFlag::Over) && !(_state & StateFlag::Down)) {
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auto was = _state;
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_state |= StateFlag::Down;
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onStateChanged(was, StateChangeSource::ByPress);
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e->accept();
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}
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}
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}
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void AbstractButton::mouseMoveEvent(QMouseEvent *e) {
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if (rect().marginsRemoved(getMargins()).contains(e->pos())) {
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setOver(true, StateChangeSource::ByHover);
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} else {
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setOver(false, StateChangeSource::ByHover);
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}
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}
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void AbstractButton::mouseReleaseEvent(QMouseEvent *e) {
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if (_state & StateFlag::Down) {
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auto was = _state;
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_state &= ~State(StateFlag::Down);
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onStateChanged(was, StateChangeSource::ByPress);
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if (was & StateFlag::Over) {
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_modifiers = e->modifiers();
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if (_clickedCallback) {
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_clickedCallback();
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} else {
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emit clicked();
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}
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} else {
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setOver(false, StateChangeSource::ByHover);
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}
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}
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}
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void AbstractButton::setPointerCursor(bool enablePointerCursor) {
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if (_enablePointerCursor != enablePointerCursor) {
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_enablePointerCursor = enablePointerCursor;
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updateCursor();
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}
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}
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void AbstractButton::setOver(bool over, StateChangeSource source) {
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if (over && !(_state & StateFlag::Over)) {
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auto was = _state;
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_state |= StateFlag::Over;
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onStateChanged(was, source);
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} else if (!over && (_state & StateFlag::Over)) {
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auto was = _state;
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_state &= ~State(StateFlag::Over);
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onStateChanged(was, source);
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}
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updateCursor();
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}
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void AbstractButton::updateCursor() {
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auto pointerCursor = _enablePointerCursor && (_state & StateFlag::Over);
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setCursor(pointerCursor ? style::cur_pointer : style::cur_default);
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}
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void AbstractButton::setDisabled(bool disabled) {
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auto was = _state;
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if (disabled && !(_state & StateFlag::Disabled)) {
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_state |= StateFlag::Disabled;
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onStateChanged(was, StateChangeSource::ByUser);
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} else if (!disabled && (_state & StateFlag::Disabled)) {
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_state &= ~State(StateFlag::Disabled);
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onStateChanged(was, StateChangeSource::ByUser);
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}
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}
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void AbstractButton::clearState() {
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auto was = _state;
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_state = StateFlag::None;
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onStateChanged(was, StateChangeSource::ByUser);
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}
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} // namespace Ui
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