forked from qt-creator/qt-creator
a2f4203753
There's some bad interaction between the delayed hide, the deleteLater() from CloseOnDelete, and the async evaluation. Work around by start from scratch for each tooltip. On the downside we have more flicker. Change-Id: I4801368c07895b652e10fe1d173b21cef7869ed0 Reviewed-by: hjk <hjk121@nokiamail.com>
309 lines
8.9 KiB
C++
309 lines
8.9 KiB
C++
/****************************************************************************
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**
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** Copyright (C) 2014 Digia Plc and/or its subsidiary(-ies).
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** Contact: http://www.qt-project.org/legal
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**
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** This file is part of Qt Creator.
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**
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** Commercial License Usage
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** Licensees holding valid commercial Qt licenses may use this file in
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** accordance with the commercial license agreement provided with the
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** Software or, alternatively, in accordance with the terms contained in
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** a written agreement between you and Digia. For licensing terms and
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** conditions see http://www.qt.io/licensing. For further information
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** use the contact form at http://www.qt.io/contact-us.
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**
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** GNU Lesser General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU Lesser
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** General Public License version 2.1 or version 3 as published by the Free
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** Software Foundation and appearing in the file LICENSE.LGPLv21 and
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** LICENSE.LGPLv3 included in the packaging of this file. Please review the
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** following information to ensure the GNU Lesser General Public License
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** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
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** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
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**
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** In addition, as a special exception, Digia gives you certain additional
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** rights. These rights are described in the Digia Qt LGPL Exception
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
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**
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****************************************************************************/
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#include "tooltip.h"
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#include "tips.h"
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#include "tipcontents.h"
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#include "effects.h"
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#include "reuse.h"
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#include <utils/hostosinfo.h>
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#include <QString>
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#include <QColor>
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#include <QApplication>
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#include <QKeyEvent>
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#include <QMouseEvent>
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#include <QWidget>
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#include <QMenu>
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#include <QDebug>
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using namespace Utils;
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using namespace Internal;
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ToolTip::ToolTip() : m_tip(0), m_widget(0)
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{
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connect(&m_showTimer, SIGNAL(timeout()), this, SLOT(hideTipImmediately()));
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connect(&m_hideDelayTimer, SIGNAL(timeout()), this, SLOT(hideTipImmediately()));
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}
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ToolTip::~ToolTip()
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{
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m_tip = 0;
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}
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ToolTip *ToolTip::instance()
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{
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static ToolTip tooltip;
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return &tooltip;
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}
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void ToolTip::show(const QPoint &pos, const TipContent &content, QWidget *w, const QRect &rect)
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{
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instance()->showInternal(pos, content, w, rect);
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}
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void ToolTip::move(const QPoint &pos, QWidget *w)
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{
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if (isVisible())
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instance()->placeTip(pos, w);
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}
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void ToolTip::show(const QPoint &pos, const TipContent &content, QWidget *w)
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{
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show(pos, content, w, QRect());
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}
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bool ToolTip::acceptShow(const TipContent &content,
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const QPoint &pos,
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QWidget *w,
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const QRect &rect)
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{
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if (!validateContent(content))
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return false;
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if (isVisible()) {
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if (m_tip->canHandleContentReplacement(content)) {
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// Reuse current tip.
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QPoint localPos = pos;
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if (w)
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localPos = w->mapFromGlobal(pos);
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if (tipChanged(localPos, content, w))
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setUp(pos, content, w, rect);
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return false;
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}
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hideTipImmediately();
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}
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#if !defined(QT_NO_EFFECTS) && !defined(Q_OS_MAC)
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// While the effect takes places it might be that although the widget is actually on
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// screen the isVisible function doesn't return true.
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else if (m_tip
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&& (QApplication::isEffectEnabled(Qt::UI_FadeTooltip)
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|| QApplication::isEffectEnabled(Qt::UI_AnimateTooltip))) {
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hideTipImmediately();
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}
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#endif
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return true;
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}
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bool ToolTip::validateContent(const TipContent &content)
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{
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if (!content.isValid()) {
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if (isVisible())
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hideTipWithDelay();
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return false;
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}
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return true;
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}
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void ToolTip::setUp(const QPoint &pos, const TipContent &content, QWidget *w, const QRect &rect)
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{
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m_tip->setContent(content);
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m_tip->configure(pos, w);
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placeTip(pos, w);
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setTipRect(w, rect);
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if (m_hideDelayTimer.isActive())
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m_hideDelayTimer.stop();
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m_showTimer.start(content.showTime());
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}
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bool ToolTip::tipChanged(const QPoint &pos, const TipContent &content, QWidget *w) const
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{
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if (!m_tip->content().equals(content) || m_widget != w)
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return true;
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if (!m_rect.isNull())
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return !m_rect.contains(pos);
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return false;
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}
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void ToolTip::setTipRect(QWidget *w, const QRect &rect)
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{
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if (!m_rect.isNull() && !w) {
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qWarning("ToolTip::show: Cannot pass null widget if rect is set");
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} else {
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m_widget = w;
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m_rect = rect;
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}
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}
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bool ToolTip::isVisible()
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{
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ToolTip *t = instance();
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return t->m_tip && t->m_tip->isVisible();
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}
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void ToolTip::showTip()
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{
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#if !defined(QT_NO_EFFECTS) && !defined(Q_OS_MAC)
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if (QApplication::isEffectEnabled(Qt::UI_FadeTooltip))
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qFadeEffect(m_tip);
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else if (QApplication::isEffectEnabled(Qt::UI_AnimateTooltip))
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qScrollEffect(m_tip);
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else
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m_tip->show();
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#else
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m_tip->show();
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#endif
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}
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void ToolTip::hide()
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{
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instance()->hideTipWithDelay();
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}
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void ToolTip::hideTipWithDelay()
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{
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if (!m_hideDelayTimer.isActive())
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m_hideDelayTimer.start(300);
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}
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void ToolTip::hideTipImmediately()
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{
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if (m_tip) {
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m_tip->close();
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m_tip->deleteLater();
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m_tip = 0;
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}
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m_showTimer.stop();
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m_hideDelayTimer.stop();
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qApp->removeEventFilter(this);
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}
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void ToolTip::showInternal(const QPoint &pos, const TipContent &content, QWidget *w, const QRect &rect)
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{
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if (acceptShow(content, pos, w, rect)) {
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QWidget *target = 0;
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if (HostOsInfo::isWindowsHost())
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target = QApplication::desktop()->screen(Internal::screenNumber(pos, w));
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else
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target = w;
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switch (content.typeId()) {
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case TextContent::TEXT_CONTENT_ID:
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m_tip = new TextTip(target);
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break;
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case ColorContent::COLOR_CONTENT_ID:
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m_tip = new ColorTip(target);
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break;
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case WidgetContent::WIDGET_CONTENT_ID:
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m_tip = new WidgetTip(target);
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break;
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}
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setUp(pos, content, w, rect);
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qApp->installEventFilter(this);
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showTip();
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}
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}
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void ToolTip::placeTip(const QPoint &pos, QWidget *w)
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{
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QRect screen = Internal::screenGeometry(pos, w);
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QPoint p = pos;
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p += QPoint(2, HostOsInfo::isWindowsHost() ? 21 : 16);
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if (p.x() + m_tip->width() > screen.x() + screen.width())
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p.rx() -= 4 + m_tip->width();
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if (p.y() + m_tip->height() > screen.y() + screen.height())
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p.ry() -= 24 + m_tip->height();
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if (p.y() < screen.y())
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p.setY(screen.y());
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if (p.x() + m_tip->width() > screen.x() + screen.width())
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p.setX(screen.x() + screen.width() - m_tip->width());
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if (p.x() < screen.x())
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p.setX(screen.x());
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if (p.y() + m_tip->height() > screen.y() + screen.height())
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p.setY(screen.y() + screen.height() - m_tip->height());
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m_tip->move(p);
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}
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bool ToolTip::eventFilter(QObject *o, QEvent *event)
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{
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if (!o->isWidgetType())
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return false;
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switch (event->type()) {
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#ifdef Q_OS_MAC
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case QEvent::KeyPress:
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case QEvent::KeyRelease: {
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int key = static_cast<QKeyEvent *>(event)->key();
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Qt::KeyboardModifiers mody = static_cast<QKeyEvent *>(event)->modifiers();
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if (!(mody & Qt::KeyboardModifierMask)
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&& key != Qt::Key_Shift && key != Qt::Key_Control
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&& key != Qt::Key_Alt && key != Qt::Key_Meta)
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hideTipWithDelay();
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break;
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}
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#endif
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case QEvent::Leave:
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if (o == m_tip && !m_tip->isAncestorOf(qApp->focusWidget()))
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hideTipWithDelay();
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break;
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case QEvent::Enter:
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// User moved cursor into tip and wants to interact.
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if (m_tip && m_tip->isInteractive() && o == m_tip) {
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if (m_hideDelayTimer.isActive())
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m_hideDelayTimer.stop();
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}
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break;
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case QEvent::WindowActivate:
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case QEvent::WindowDeactivate:
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case QEvent::FocusOut:
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case QEvent::FocusIn:
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if (m_tip && !m_tip->isInteractive()) // Windows: A sequence of those occurs when interacting
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hideTipImmediately();
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break;
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case QEvent::MouseButtonPress:
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case QEvent::MouseButtonRelease:
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case QEvent::MouseButtonDblClick:
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case QEvent::Wheel:
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if (m_tip) {
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if (m_tip->isInteractive()) { // Do not close on interaction with the tooltip
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if (o != m_tip && !m_tip->isAncestorOf(static_cast<QWidget *>(o)))
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hideTipImmediately();
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} else {
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hideTipImmediately();
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}
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}
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break;
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case QEvent::MouseMove:
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if (o == m_widget &&
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!m_rect.isNull() &&
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!m_rect.contains(static_cast<QMouseEvent*>(event)->pos())) {
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hideTipWithDelay();
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}
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default:
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break;
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}
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return false;
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}
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