dolphin/Source/Core/DolphinQt2/RenderWidget.cpp
Stenzek de632fc9c8 Renderer: Handle resize events on-demand instead of polling
We now differentiate between a resize event and surface change/destroyed
event, reducing the overhead for resizes in the Vulkan backend. It is
also now now safe to change the surface multiple times if the video thread
is lagging behind.
2018-02-20 01:15:55 +10:00

104 lines
3.0 KiB
C++

// Copyright 2015 Dolphin Emulator Project
// Licensed under GPLv2+
// Refer to the license.txt file included.
#include <QKeyEvent>
#include <QTimer>
#include "DolphinQt2/Host.h"
#include "DolphinQt2/RenderWidget.h"
#include "DolphinQt2/Settings.h"
RenderWidget::RenderWidget(QWidget* parent) : QWidget(parent)
{
setAttribute(Qt::WA_OpaquePaintEvent, true);
setAttribute(Qt::WA_NoSystemBackground, true);
connect(Host::GetInstance(), &Host::RequestTitle, this, &RenderWidget::setWindowTitle);
// We have to use Qt::DirectConnection here because we don't want those signals to get queued
// (which results in them not getting called)
connect(this, &RenderWidget::StateChanged, Host::GetInstance(), &Host::SetRenderFullscreen,
Qt::DirectConnection);
connect(this, &RenderWidget::HandleChanged, Host::GetInstance(), &Host::SetRenderHandle,
Qt::DirectConnection);
connect(this, &RenderWidget::SizeChanged, Host::GetInstance(), &Host::ResizeSurface,
Qt::DirectConnection);
emit HandleChanged((void*)winId());
m_mouse_timer = new QTimer(this);
connect(m_mouse_timer, &QTimer::timeout, this, &RenderWidget::HandleCursorTimer);
m_mouse_timer->setSingleShot(true);
setMouseTracking(true);
connect(&Settings::Instance(), &Settings::HideCursorChanged, this,
&RenderWidget::OnHideCursorChanged);
OnHideCursorChanged();
m_mouse_timer->start(MOUSE_HIDE_DELAY);
}
void RenderWidget::OnHideCursorChanged()
{
setCursor(Settings::Instance().GetHideCursor() ? Qt::BlankCursor : Qt::ArrowCursor);
}
void RenderWidget::HandleCursorTimer()
{
if (isActiveWindow())
setCursor(Qt::BlankCursor);
}
bool RenderWidget::event(QEvent* event)
{
switch (event->type())
{
case QEvent::KeyPress:
{
QKeyEvent* ke = static_cast<QKeyEvent*>(event);
if (ke->key() == Qt::Key_Escape)
emit EscapePressed();
// The render window might flicker on some platforms because Qt tries to change focus to a new
// element when there is none (?) Handling this event before it reaches QWidget fixes the issue.
if (ke->key() == Qt::Key_Tab)
return true;
break;
}
case QEvent::MouseMove:
case QEvent::MouseButtonPress:
if (!Settings::Instance().GetHideCursor() && isActiveWindow())
{
setCursor(Qt::ArrowCursor);
m_mouse_timer->start(MOUSE_HIDE_DELAY);
}
break;
case QEvent::WinIdChange:
emit HandleChanged((void*)winId());
break;
case QEvent::WindowActivate:
Host::GetInstance()->SetRenderFocus(true);
break;
case QEvent::WindowDeactivate:
Host::GetInstance()->SetRenderFocus(false);
break;
case QEvent::Resize:
{
const QResizeEvent* se = static_cast<QResizeEvent*>(event);
QSize new_size = se->size();
emit SizeChanged(new_size.width(), new_size.height());
break;
}
case QEvent::WindowStateChange:
emit StateChanged(isFullScreen());
break;
case QEvent::Close:
emit Closed();
break;
default:
break;
}
return QWidget::event(event);
}