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/*
SPDX-FileCopyrightText: 2009 Eike Hein <hein@kde.org>
SPDX-License-Identifier: GPL-2.0-only OR GPL-3.0-only OR LicenseRef-KDE-Accepted-GPL
*/
#include "visualeventoverlay.h"
#include "sessionstack.h"
#include "settings.h"
#include "terminal.h"
#include <KColorScheme>
#include <KStatefulBrush>
#include <QPainter>
#include <QTimer>
EventRect::EventRect(const QPoint &topLeft, const QPoint &bottomRight, EventType type, EventFlags flags)
: QRect(topLeft, bottomRight)
{
m_eventType = type;
m_eventFlags = flags;
m_timeStamp.start();
}
EventRect::~EventRect() = default;
bool EventRect::operator==(const EventRect &eventRect) const
{
if (m_eventType == eventRect.eventType() && eventRect.testFlag(EventRect::Singleton))
return true;
if (m_eventType != eventRect.eventType())
return false;
return x() == eventRect.x() && y() == eventRect.y() && width() == eventRect.width() && height() == eventRect.height();
}
bool EventRect::operator<(const EventRect &eventRect) const
{
if (!testFlag(EventRect::Exclusive) && eventRect.testFlag(EventRect::Exclusive))
return false;
if (m_eventType < eventRect.eventType())
return true;
else if (m_timeStamp < eventRect.timeStamp())
return true;
return false;
}
VisualEventOverlay::VisualEventOverlay(SessionStack *parent)
: QWidget(parent)
{
m_sessionStack = parent;
setAutoFillBackground(false);
setAttribute(Qt::WA_TranslucentBackground, true);
setFocusPolicy(Qt::NoFocus);
setAttribute(Qt::WA_TransparentForMouseEvents, true);
m_cleanupTimer = new QTimer(this);
m_cleanupTimer->setSingleShot(true);
connect(m_cleanupTimer, SIGNAL(timeout()), this, SLOT(cleanupOverlay()));
m_cleanupTimerCeiling = 0;
hide();
}
VisualEventOverlay::~VisualEventOverlay() = default;
void VisualEventOverlay::highlightTerminal(Terminal *terminal, bool persistent)
{
if (!persistent && Settings::terminalHighlightDuration() == 0)
return;
if (isHidden())
show();
EventRect::EventFlags flags = EventRect::Singleton | EventRect::Exclusive;
if (persistent)
flags |= EventRect::Persistent;
terminalEvent(terminal, EventRect::TerminalHighlight, flags);
if (!persistent)
scheduleCleanup(Settings::terminalHighlightDuration());
}
void VisualEventOverlay::removeTerminalHighlight()
{
if (!m_eventRects.count())
return;
QMutableListIterator<EventRect> i(m_eventRects);
while (i.hasNext()) {
if (i.next().eventType() == EventRect::TerminalHighlight)
i.remove();
}
if (m_sessionStack->requiresVisualEventOverlay())
update();
else
hide();
}
void VisualEventOverlay::indicateKeyboardInputBlocked(Terminal *terminal)
{
if (Settings::keyboardInputBlockIndicatorDuration() == 0)
return;
terminalEvent(terminal, EventRect::KeyboardInputBlocked);
scheduleCleanup(Settings::keyboardInputBlockIndicatorDuration());
}
void VisualEventOverlay::terminalEvent(Terminal *terminal, EventRect::EventType type, EventRect::EventFlags flags)
{
QRect partRect(terminal->partWidget()->rect());
const QWidget *partWidget = terminal->partWidget();
QPoint topLeft(partWidget->mapTo(parentWidget(), partRect.topLeft()));
QPoint bottomRight(partWidget->mapTo(parentWidget(), partRect.bottomRight()));
EventRect eventRect(topLeft, bottomRight, type, flags);
m_eventRects.removeAll(eventRect);
m_eventRects.append(eventRect);
std::sort(m_eventRects.begin(), m_eventRects.end());
update();
}
void VisualEventOverlay::paintEvent(QPaintEvent *)
{
if (!m_eventRects.count())
return;
QPainter painter(this);
m_time.start();
bool painted = false;
QListIterator<EventRect> i(m_eventRects);
while (i.hasNext()) {
const EventRect &eventRect = i.next();
painted = false;
if (eventRect.eventType() == EventRect::TerminalHighlight
&& (eventRect.timeStamp().msecsTo(m_time) <= Settings::terminalHighlightDuration() || eventRect.testFlag(EventRect::Persistent))) {
KStatefulBrush terminalHighlightBrush(KColorScheme::View, KColorScheme::HoverColor);
painter.setOpacity(Settings::terminalHighlightOpacity());
painter.fillRect(eventRect, terminalHighlightBrush.brush(palette()));
painted = true;
} else if (eventRect.eventType() == EventRect::KeyboardInputBlocked
&& eventRect.timeStamp().msecsTo(m_time) <= Settings::keyboardInputBlockIndicatorDuration()) {
painter.setOpacity(Settings::keyboardInputBlockIndicatorOpacity());
painter.fillRect(eventRect, Settings::keyboardInputBlockIndicatorColor());
painted = true;
}
if (painted && i.hasNext() && eventRect.testFlag(EventRect::Exclusive)) {
if (!painter.hasClipping())
painter.setClipRect(rect());
painter.setClipRegion(painter.clipRegion().subtracted(eventRect));
}
}
}
void VisualEventOverlay::showEvent(QShowEvent *)
{
resize(parentWidget()->rect().size());
raise();
}
void VisualEventOverlay::hideEvent(QHideEvent *)
{
m_cleanupTimer->stop();
m_eventRects.clear();
}
void VisualEventOverlay::scheduleCleanup(int in)
{
int left = (m_cleanupTimerStarted.isValid()) ? m_cleanupTimerCeiling - m_cleanupTimerStarted.elapsed() : 0;
if (in > left) {
m_cleanupTimerCeiling = in;
m_cleanupTimerStarted.start();
m_cleanupTimer->start(in);
}
}
void VisualEventOverlay::cleanupOverlay()
{
if (m_eventRects.count()) {
m_time.start();
QMutableListIterator<EventRect> i(m_eventRects);
while (i.hasNext()) {
const EventRect &eventRect = i.next();
if (eventRect.eventType() == EventRect::TerminalHighlight && eventRect.timeStamp().msecsTo(m_time) >= Settings::terminalHighlightDuration()
&& !eventRect.testFlag(EventRect::Persistent)) {
i.remove();
} else if (eventRect.eventType() == EventRect::KeyboardInputBlocked
&& eventRect.timeStamp().msecsTo(m_time) >= Settings::keyboardInputBlockIndicatorDuration()) {
i.remove();
}
}
}
if (m_sessionStack->requiresVisualEventOverlay())
update();
else
hide();
}
#include "moc_visualeventoverlay.cpp"
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