Shuffle things around in preparation for Direct2D platform plugin

Add a layer of abstraction in some spots where the Direct2D plugin will hook in.

Change-Id: Ifca7daf6ad0284af52a81822e970c2317d339234
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@digia.com>

1 files changed, 169 insertions, 0 deletions

diff --git a/src/plugins/platforms/windows/qwindowsnativeinterface.cpp b/src/plugins/platforms/windows/qwindowsnativeinterface.cpp
new file mode 100644
index 0000000000..9bf4b3240c
--- /dev/null
+++ b/src/plugins/platforms/windows/qwindowsnativeinterface.cpp
@@ -0,0 +1,169 @@
+/****************************************************************************
+**
+** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
+** Contact: http://www.qt-project.org/legal
+**
+** This file is part of the plugins of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and Digia.  For licensing terms and
+** conditions see http://qt.digia.com/licensing.  For further information
+** use the contact form at http://qt.digia.com/contact-us.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Digia gives you certain additional
+** rights.  These rights are described in the Digia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "qwindowsnativeinterface.h"
+#include "qwindowswindow.h"
+#include "qwindowscontext.h"
+
+#if defined(QT_OPENGL_ES_2)
+#  include "qwindowseglcontext.h"
+#  include <QtGui/QOpenGLContext>
+#elif !defined(QT_NO_OPENGL)
+#  include "qwindowsglcontext.h"
+#endif
+
+#include <QtGui/QWindow>
+
+QT_BEGIN_NAMESPACE
+
+void *QWindowsNativeInterface::nativeResourceForWindow(const QByteArray &resource, QWindow *window)
+{
+    if (!window || !window->handle()) {
+        qWarning("%s: '%s' requested for null window or window without handle.", __FUNCTION__, resource.constData());
+        return 0;
+    }
+    QWindowsWindow *bw = static_cast<QWindowsWindow *>(window->handle());
+    if (resource == "handle")
+        return bw->handle();
+    if (window->surfaceType() == QWindow::RasterSurface) {
+        if (resource == "getDC")
+            return bw->getDC();
+        if (resource == "releaseDC") {
+            bw->releaseDC();
+            return 0;
+        }
+    }
+    qWarning("%s: Invalid key '%s' requested.", __FUNCTION__, resource.constData());
+    return 0;
+}
+
+static const char customMarginPropertyC[] = "WindowsCustomMargins";
+
+QVariant QWindowsNativeInterface::windowProperty(QPlatformWindow *window, const QString &name) const
+{
+    QWindowsWindow *platformWindow = static_cast<QWindowsWindow *>(window);
+    if (name == QLatin1String(customMarginPropertyC))
+        return qVariantFromValue(platformWindow->customMargins());
+    return QVariant();
+}
+
+QVariant QWindowsNativeInterface::windowProperty(QPlatformWindow *window, const QString &name, const QVariant &defaultValue) const
+{
+    const QVariant result = windowProperty(window, name);
+    return result.isValid() ? result : defaultValue;
+}
+
+void QWindowsNativeInterface::setWindowProperty(QPlatformWindow *window, const QString &name, const QVariant &value)
+{
+    QWindowsWindow *platformWindow = static_cast<QWindowsWindow *>(window);
+    if (name == QLatin1String(customMarginPropertyC))
+        platformWindow->setCustomMargins(qvariant_cast<QMargins>(value));
+}
+
+QVariantMap QWindowsNativeInterface::windowProperties(QPlatformWindow *window) const
+{
+    QVariantMap result;
+    const QString customMarginProperty = QLatin1String(customMarginPropertyC);
+    result.insert(customMarginProperty, windowProperty(window, customMarginProperty));
+    return result;
+}
+
+#ifndef QT_NO_OPENGL
+void *QWindowsNativeInterface::nativeResourceForContext(const QByteArray &resource, QOpenGLContext *context)
+{
+    if (!context || !context->handle()) {
+        qWarning("%s: '%s' requested for null context or context without handle.", __FUNCTION__, resource.constData());
+        return 0;
+    }
+#ifdef QT_OPENGL_ES_2
+    QWindowsEGLContext *windowsEglContext = static_cast<QWindowsEGLContext *>(context->handle());
+    if (resource == QByteArrayLiteral("eglDisplay"))
+        return windowsEglContext->eglDisplay();
+    if (resource == QByteArrayLiteral("eglContext"))
+        return windowsEglContext->eglContext();
+    if (resource == QByteArrayLiteral("eglConfig"))
+        return windowsEglContext->eglConfig();
+#else // QT_OPENGL_ES_2
+    QWindowsGLContext *windowsContext = static_cast<QWindowsGLContext *>(context->handle());
+    if (resource == QByteArrayLiteral("renderingContext"))
+        return windowsContext->renderingContext();
+#endif // !QT_OPENGL_ES_2
+
+    qWarning("%s: Invalid key '%s' requested.", __FUNCTION__, resource.constData());
+    return 0;
+}
+#endif // !QT_NO_OPENGL
+
+/*!
+    \brief Creates a non-visible window handle for filtering messages.
+*/
+
+void *QWindowsNativeInterface::createMessageWindow(const QString &classNameTemplate,
+                                                   const QString &windowName,
+                                                   void *eventProc) const
+{
+    QWindowsContext *ctx = QWindowsContext::instance();
+    const HWND hwnd = ctx->createDummyWindow(classNameTemplate,
+                                             (wchar_t*)windowName.utf16(),
+                                             (WNDPROC)eventProc);
+    return hwnd;
+}
+
+/*!
+    \brief Registers a unique window class with a callback function based on \a classNameIn.
+*/
+
+QString QWindowsNativeInterface::registerWindowClass(const QString &classNameIn, void *eventProc) const
+{
+    return QWindowsContext::instance()->registerWindowClass(classNameIn, (WNDPROC)eventProc);
+}
+
+bool QWindowsNativeInterface::asyncExpose() const
+{
+    return QWindowsContext::instance()->asyncExpose();
+}
+
+void QWindowsNativeInterface::setAsyncExpose(bool value)
+{
+    QWindowsContext::instance()->setAsyncExpose(value);
+}
+
+QT_END_NAMESPACE