libreoffice/sdext/source/presenter/PresenterPaneBorderManager.hxx

/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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 * This file is part of the LibreOffice project.
 *
 * This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
 *
 * This file incorporates work covered by the following license notice:
 *
 *   Licensed to the Apache Software Foundation (ASF) under one or more
 *   contributor license agreements. See the NOTICE file distributed
 *   with this work for additional information regarding copyright
 *   ownership. The ASF licenses this file to you under the Apache
 *   License, Version 2.0 (the "License"); you may not use this file
 *   except in compliance with the License. You may obtain a copy of
 *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
 */

#ifndef INCLUDED_SDEXT_SOURCE_PRESENTER_PRESENTERPANEBORDERMANAGER_HXX
#define INCLUDED_SDEXT_SOURCE_PRESENTER_PRESENTERPANEBORDERMANAGER_HXX

// The body of this file is only used when PresenterWindowManager defines
// the preprocessor symbol ENABLE_PANE_RESIZING, which by default is not the
// case.
#ifdef ENABLE_PANE_RESIZING

#include <cppuhelper/basemutex.hxx>
#include <cppuhelper/compbase3.hxx>
#include <com/sun/star/awt/Point.hpp>
#include <com/sun/star/awt/Size.hpp>
#include <com/sun/star/awt/XGraphics.hpp>
#include <com/sun/star/awt/XMouseListener.hpp>
#include <com/sun/star/awt/XMouseMotionListener.hpp>
#include <com/sun/star/awt/XPointer.hpp>
#include <com/sun/star/awt/XWindowListener.hpp>
#include <com/sun/star/container/XChild.hpp>
#include <com/sun/star/drawing/XPresenterHelper.hpp>
#include <com/sun/star/drawing/framework/XPane.hpp>
#include <com/sun/star/lang/XInitialization.hpp>
#include <com/sun/star/uno/XComponentContext.hpp>
#include <com/sun/star/rendering/XCanvas.hpp>
#include <rtl/ref.hxx>
#include <boost/noncopyable.hpp>

namespace sdext { namespace presenter {

class PresenterController;

namespace {
    typedef ::cppu::WeakComponentImplHelper3 <
        css::lang::XInitialization,
        css::awt::XMouseListener,
        css::awt::XMouseMotionListener
    > PresenterPaneBorderManagerInterfaceBase;
}

/** Manage the interactive moving and resizing of panes.
*/
class PresenterPaneBorderManager
    : private ::boost::noncopyable,
      protected ::cppu::BaseMutex,
      public PresenterPaneBorderManagerInterfaceBase
{
public:
    PresenterPaneBorderManager (
        const css::uno::Reference<css::uno::XComponentContext>& rxContext,
        const ::rtl::Reference<PresenterController>& rpPresenterController);
    virtual ~PresenterPaneBorderManager();

    virtual void SAL_CALL disposing();

    static OUString getImplementationName_static();
    static css::uno::Sequence< OUString > getSupportedServiceNames_static();
    static css::uno::Reference<css::uno::XInterface> Create(
        const css::uno::Reference<css::uno::XComponentContext>& rxContext);

    // XInitialization

    virtual void SAL_CALL initialize (const css::uno::Sequence<css::uno::Any>& rArguments)
        throw (css::uno::Exception, css::uno::RuntimeException);

    // XMouseListener

    virtual void SAL_CALL mousePressed (const css::awt::MouseEvent& rEvent)
        throw (css::uno::RuntimeException);

    virtual void SAL_CALL mouseReleased (const css::awt::MouseEvent& rEvent)
        throw (css::uno::RuntimeException);

    virtual void SAL_CALL mouseEntered (const css::awt::MouseEvent& rEvent)
        throw (css::uno::RuntimeException);

    virtual void SAL_CALL mouseExited (const css::awt::MouseEvent& rEvent)
        throw (css::uno::RuntimeException);

    // XMouseMotionListener

    virtual void SAL_CALL mouseMoved (const css::awt::MouseEvent& rEvent)
        throw (css::uno::RuntimeException);

    virtual void SAL_CALL mouseDragged (const css::awt::MouseEvent& rEvent)
        throw (css::uno::RuntimeException);

    // lang::XEventListener
    virtual void SAL_CALL disposing (const css::lang::EventObject& rEvent)
        throw (css::uno::RuntimeException);

private:
    enum BorderElement { Top, TopLeft, TopRight, Left, Right, BottomLeft, BottomRight, Bottom,
                         Content, Outside };

    ::rtl::Reference<PresenterController> mpPresenterController;
    css::uno::Reference<css::uno::XComponentContext> mxComponentContext;
    css::uno::Reference<css::drawing::XPresenterHelper> mxPresenterHelper;
    /** The parent window is stored so that it can be invalidated when one
        of its children is resized or moved.  It is assumed to be the parent
        window of all outer windows stored in maWindowList.
    */
    css::uno::Reference<css::awt::XWindow> mxParentWindow;
    typedef ::std::pair<css::uno::Reference<css::awt::XWindow>,
        css::uno::Reference<css::awt::XWindow> > WindowDescriptor;
    typedef ::std::vector<WindowDescriptor> WindowList;
    WindowList maWindowList;

    sal_Int32 mnPointerType;
    css::awt::Point maDragAnchor;
    BorderElement meDragType;
    css::uno::Reference<css::awt::XWindow> mxOuterDragWindow;
    css::uno::Reference<css::awt::XWindow> mxInnerDragWindow;
    css::uno::Reference<css::awt::XPointer> mxPointer;

    BorderElement ClassifyBorderElementUnderMouse (
        const css::uno::Reference<css::awt::XWindow>& rxOuterDragWindow,
        const css::uno::Reference<css::awt::XWindow>& rxInnerDragWindow,
        const css::awt::Point aPosition) const;
    void CreateWindows (const css::uno::Reference<css::awt::XWindow>& rxParentWindow);
    void CaptureMouse (const css::uno::Reference<css::awt::XWindow>& rxWindow);
    void ReleaseMouse (const css::uno::Reference<css::awt::XWindow>& rxWindow);

    /** This method throws a DisposedException when the object has already been
        disposed.
    */
    void ThrowIfDisposed()
        throw (css::lang::DisposedException);
};

} } // end of namespace ::sd::presenter

#endif // ENABLE_PANE_RESIZING

#endif

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