Add VKWidget files

Author: ksuprynowicz

libraries/vk/src/vk/VKWidget.cpp

@@ -0,0 +1,158 @@
+//
+// Created by ksuprynowicz on 25.01.25.
+//
+
+//
+//
+//  Created by Bradley Austin Davis on 2015/12/03
+//  Derived from interface/src/GLCanvas.cpp created by Stephen Birarda on 8/14/13.
+//  Copyright 2013-2015 High Fidelity, Inc.
+//
+//  Distributed under the Apache License, Version 2.0.
+//  See the accompanying file LICENSE or http://www.apache.org/licenses/LICENSE-2.0.html
+//
+
+#include "VKWidget.h"
+
+#include "Config.h"
+
+#include <mutex>
+
+#include <QtGlobal>
+#include <QtCore/QMimeData>
+#include <QtCore/QUrl>
+#include <QtCore/QCoreApplication>
+
+#include <QtGui/QKeyEvent>
+#include <QtGui/QPaintEngine>
+#include <QtGui/QWindow>
+
+#include "Context.h"
+
+class GLPaintEngine : public QPaintEngine {
+    bool begin(QPaintDevice *pdev) override { return true; }
+    bool end() override { return true; }
+    void updateState(const QPaintEngineState &state) override { }
+    void drawPixmap(const QRectF &r, const QPixmap &pm, const QRectF &sr) override { }
+    Type type() const override { return OpenGL2; }
+};
+
+VKWidget::VKWidget() {
+    setAttribute(Qt::WA_AcceptTouchEvents);
+    setAttribute(Qt::WA_NativeWindow);
+    setAttribute(Qt::WA_PaintOnScreen);
+    setAttribute(Qt::WA_NoSystemBackground);
+    setAttribute(Qt::WA_InputMethodEnabled);
+    setAutoFillBackground(false);
+    grabGesture(Qt::PinchGesture);
+    setAcceptDrops(true);
+    _paintEngine = new GLPaintEngine();
+}
+
+VKWidget::~VKWidget() {
+    delete _paintEngine;
+    _paintEngine = nullptr;
+}
+
+int VKWidget::getDeviceWidth() const {
+    return width() * (windowHandle() ? (float)windowHandle()->devicePixelRatio() : 1.0f);
+}
+
+int VKWidget::getDeviceHeight() const {
+    return height() * (windowHandle() ? (float)windowHandle()->devicePixelRatio() : 1.0f);
+}
+
+void VKWidget::createContext(QOpenGLContext* shareContext) {
+    _context = new gl::Context();
+    _context->setWindow(windowHandle());
+    _context->create(shareContext);
+    _context->makeCurrent();
+    _context->clear();
+    _context->doneCurrent();
+}
+
+void VKWidget::swapBuffers() {
+    _context->swapBuffers();
+}
+
+bool VKWidget::makeCurrent() {
+    vks::Context::makeCurrent(_context->qglContext(), windowHandle());
+    return _context->makeCurrent();
+}
+
+QOpenGLContext* VKWidget::qglContext() {
+    return _context->qglContext();
+}
+
+void VKWidget::doneCurrent() {
+    _context->doneCurrent();
+}
+
+QVariant VKWidget::inputMethodQuery(Qt::InputMethodQuery query) const {
+    // TODO: for now we just use top left corner for an IME popup location, but in the future its position could be calculated
+    // for a given entry field.
+    if (query == Qt::ImCursorRectangle) {
+        int x = 50;
+        int y = 50;
+        return QRect(x, y, 10, 10);
+    }
+    return QWidget::inputMethodQuery(query);
+}
+
+bool VKWidget::event(QEvent* event) {
+    switch (event->type()) {
+        case QEvent::MouseMove:
+        case QEvent::MouseButtonPress:
+        case QEvent::MouseButtonRelease:
+        case QEvent::MouseButtonDblClick:
+        case QEvent::KeyPress:
+        case QEvent::KeyRelease:
+        case QEvent::FocusIn:
+        case QEvent::FocusOut:
+        case QEvent::Resize:
+        case QEvent::TouchBegin:
+        case QEvent::TouchEnd:
+        case QEvent::TouchUpdate:
+        case QEvent::Gesture:
+        case QEvent::Wheel:
+        case QEvent::DragEnter:
+        case QEvent::Drop:
+            if (QCoreApplication::sendEvent(QCoreApplication::instance(), event)) {
+                return true;
+            }
+            break;
+        case QEvent::InputMethod:
+            if (QCoreApplication::sendEvent(QCoreApplication::instance(), event)) {
+                return true;
+            }
+            break;
+        case QEvent::InputMethodQuery:
+            if (QCoreApplication::sendEvent(QCoreApplication::instance(), event)) {
+                return true;
+            }
+            break;
+
+        default:
+            break;
+    }
+    return QWidget::event(event);
+}
+
+bool VKWidget::nativeEvent(const QByteArray &eventType, void *message, long *result) {
+#ifdef Q_OS_WIN32
+    MSG* win32message = static_cast<MSG*>(message);
+    switch (win32message->message) {
+        case WM_ERASEBKGND:
+            *result = 1L;
+            return TRUE;
+
+        default:
+            break;
+    }
+#endif
+    return QWidget::nativeEvent(eventType, message, result);
+}
+
+QPaintEngine* VKWidget::paintEngine() const {
+    return _paintEngine;
+}

libraries/vk/src/vk/VKWidget.h

@@ -0,0 +1,48 @@
+//
+// Created by ksuprynowicz on 25.01.25.
+//
+
+//
+//
+//  Created by Bradley Austin Davis on 2015/12/03
+//  Derived from interface/src/GLCanvas.cpp created by Stephen Birarda on 8/14/13.
+//  Copyright 2013-2015 High Fidelity, Inc.
+//
+//  Distributed under the Apache License, Version 2.0.
+//  See the accompanying file LICENSE or http://www.apache.org/licenses/LICENSE-2.0.html
+//
+
+
+#pragma once
+
+#include <QtWidgets/QWidget>
+
+#include "Context.h"
+
+/// customized canvas that simply forwards requests/events to the singleton application
+class VKWidget : public QWidget {
+    Q_OBJECT
+
+public:
+    VKWidget();
+    ~VKWidget();
+    int getDeviceWidth() const;
+    int getDeviceHeight() const;
+    QSize getDeviceSize() const { return QSize(getDeviceWidth(), getDeviceHeight()); }
+    QPaintEngine* paintEngine() const override;
+    void createContext(QOpenGLContext* shareContext = nullptr);
+    bool makeCurrent();
+    void doneCurrent();
+    void swapBuffers();
+    vks::Context* context() { return _context; }
+    virtual QVariant inputMethodQuery(Qt::InputMethodQuery query) const override;
+
+protected:
+    virtual bool nativeEvent(const QByteArray &eventType, void *message, long *result) override;
+    virtual bool event(QEvent* event) override;
+    vks::Context* _context { nullptr };
+
+private:
+    QPaintEngine* _paintEngine { nullptr };
+    bool _vsyncSupported { false };
+};