Adding upstream version 1:7.0.4.upstream/1%7.0.4upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 462 insertions, 0 deletions

diff --git a/vcl/source/window/cursor.cxx b/vcl/source/window/cursor.cxx
new file mode 100644
index 000000000..9eba6b2f6
--- /dev/null
+++ b/vcl/source/window/cursor.cxx
@@ -0,0 +1,462 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * 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 .
+ */
+
+#include <memory>
+
+#include <comphelper/lok.hxx>
+#include <vcl/svapp.hxx>
+#include <vcl/timer.hxx>
+#include <vcl/settings.hxx>
+#include <vcl/window.hxx>
+#include <vcl/cursor.hxx>
+
+#include <window.h>
+
+#include <tools/poly.hxx>
+
+struct ImplCursorData
+{
+    AutoTimer       maTimer;            // Timer
+    Point           maPixPos;           // Pixel-Position
+    Point           maPixRotOff;        // Pixel-Offset-Position
+    Size            maPixSize;          // Pixel-Size
+    short           mnOrientation;      // Pixel-Orientation
+    CursorDirection mnDirection;        // indicates writing direction
+    sal_uInt16      mnStyle;            // Cursor-Style
+    bool            mbCurVisible;       // Is cursor currently visible
+    VclPtr<vcl::Window> mpWindow;           // assigned window
+};
+
+static tools::Rectangle ImplCursorInvert(vcl::RenderContext* pRenderContext, ImplCursorData const * pData)
+{
+    tools::Rectangle aPaintRect;
+
+    bool bMapMode = pRenderContext->IsMapModeEnabled();
+    pRenderContext->EnableMapMode( false );
+    InvertFlags nInvertStyle;
+    if ( pData->mnStyle & CURSOR_SHADOW )
+        nInvertStyle = InvertFlags::N50;
+    else
+        nInvertStyle = InvertFlags::NONE;
+
+    tools::Rectangle aRect( pData->maPixPos, pData->maPixSize );
+    if ( pData->mnDirection != CursorDirection::NONE || pData->mnOrientation )
+    {
+        tools::Polygon aPoly( aRect );
+        if( aPoly.GetSize() == 5 )
+        {
+            aPoly[1].AdjustX(1 );  // include the right border
+            aPoly[2].AdjustX(1 );
+
+            // apply direction flag after slant to use the correct shape
+            if ( pData->mnDirection != CursorDirection::NONE)
+            {
+                Point pAry[7];
+                int delta = 3*aRect.getWidth()+1;
+                if( pData->mnDirection == CursorDirection::LTR )
+                {
+                    // left-to-right
+                    pAry[0] = aPoly.GetPoint( 0 );
+                    pAry[1] = aPoly.GetPoint( 1 );
+                    pAry[2] = pAry[1];
+                    pAry[2].AdjustX(delta );
+                    pAry[3] =  pAry[1];
+                    pAry[3].AdjustY(delta );
+                    pAry[4] = aPoly.GetPoint( 2 );
+                    pAry[5] = aPoly.GetPoint( 3 );
+                    pAry[6] = aPoly.GetPoint( 4 );
+                }
+                else if( pData->mnDirection == CursorDirection::RTL )
+                {
+                    // right-to-left
+                    pAry[0] = aPoly.GetPoint( 0 );
+                    pAry[1] = aPoly.GetPoint( 1 );
+                    pAry[2] = aPoly.GetPoint( 2 );
+                    pAry[3] = aPoly.GetPoint( 3 );
+                    pAry[4] = pAry[0];
+                    pAry[4].AdjustY(delta );
+                    pAry[5] =  pAry[0];
+                    pAry[5].AdjustX( -delta );
+                    pAry[6] = aPoly.GetPoint( 4 );
+                }
+                aPoly = tools::Polygon( 7, pAry);
+            }
+
+            if ( pData->mnOrientation )
+                aPoly.Rotate( pData->maPixRotOff, pData->mnOrientation );
+            pRenderContext->Invert( aPoly, nInvertStyle );
+            aPaintRect = aPoly.GetBoundRect();
+        }
+    }
+    else
+    {
+        pRenderContext->Invert( aRect, nInvertStyle );
+        aPaintRect = aRect;
+    }
+    pRenderContext->EnableMapMode( bMapMode );
+    return aPaintRect;
+}
+
+static void ImplCursorInvert(vcl::Window* pWindow, ImplCursorData const * pData)
+{
+    if (!pWindow || pWindow->IsDisposed())
+        return;
+
+    std::unique_ptr<vcl::PaintBufferGuard> pGuard;
+    const bool bDoubleBuffering = pWindow->SupportsDoubleBuffering();
+    if (bDoubleBuffering)
+        pGuard.reset(new vcl::PaintBufferGuard(pWindow->ImplGetWindowImpl()->mpFrameData, pWindow));
+
+    vcl::RenderContext* pRenderContext = bDoubleBuffering ? pGuard->GetRenderContext() : pWindow;
+
+    tools::Rectangle aPaintRect = ImplCursorInvert(pRenderContext, pData);
+    if (bDoubleBuffering)
+        pGuard->SetPaintRect(pRenderContext->PixelToLogic(aPaintRect));
+}
+
+bool vcl::Cursor::ImplPrepForDraw(const OutputDevice* pDevice, ImplCursorData& rData)
+{
+    if (pDevice && !rData.mbCurVisible)
+    {
+        rData.maPixPos        = pDevice->LogicToPixel( maPos );
+        rData.maPixSize       = pDevice->LogicToPixel( maSize );
+        rData.mnOrientation   = mnOrientation;
+        rData.mnDirection     = mnDirection;
+
+        // correct the position with the offset
+        rData.maPixRotOff = rData.maPixPos;
+
+        // use width (as set in Settings) if size is 0,
+        if (!rData.maPixSize.Width())
+            rData.maPixSize.setWidth(pDevice->GetSettings().GetStyleSettings().GetCursorSize());
+        return true;
+    }
+    return false;
+}
+
+void vcl::Cursor::ImplDraw()
+{
+    if (mpData && mpData->mpWindow)
+    {
+        // calculate output area
+        if (ImplPrepForDraw(mpData->mpWindow, *mpData))
+        {
+            // display
+            ImplCursorInvert(mpData->mpWindow, mpData.get());
+            mpData->mbCurVisible = true;
+        }
+    }
+}
+
+void vcl::Cursor::DrawToDevice(OutputDevice& rRenderContext)
+{
+    ImplCursorData aData;
+    aData.mnStyle = 0;
+    aData.mbCurVisible = false;
+    // calculate output area
+    if (ImplPrepForDraw(&rRenderContext, aData))
+    {
+        // display
+        ImplCursorInvert(&rRenderContext, &aData);
+    }
+}
+
+void vcl::Cursor::ImplRestore()
+{
+    assert( mpData && mpData->mbCurVisible );
+
+    ImplCursorInvert(mpData->mpWindow, mpData.get());
+    mpData->mbCurVisible = false;
+}
+
+void vcl::Cursor::ImplDoShow( bool bDrawDirect, bool bRestore )
+{
+    if ( mbVisible )
+    {
+        vcl::Window* pWindow;
+        if ( mpWindow )
+            pWindow = mpWindow;
+        else
+        {
+            // show the cursor, if there is an active window and the cursor
+            // has been selected in this window
+            pWindow = Application::GetFocusWindow();
+            if (!pWindow || !pWindow->mpWindowImpl || (pWindow->mpWindowImpl->mpCursor != this)
+                || pWindow->mpWindowImpl->mbInPaint
+                || !pWindow->mpWindowImpl->mpFrameData->mbHasFocus)
+                pWindow = nullptr;
+        }
+
+        if ( pWindow )
+        {
+            if ( !mpData )
+            {
+                mpData.reset( new ImplCursorData );
+                mpData->mbCurVisible = false;
+                mpData->maTimer.SetInvokeHandler( LINK( this, Cursor, ImplTimerHdl ) );
+                mpData->maTimer.SetDebugName( "vcl ImplCursorData maTimer" );
+            }
+
+            mpData->mpWindow    = pWindow;
+            mpData->mnStyle     = mnStyle;
+            if ( bDrawDirect || bRestore )
+                ImplDraw();
+
+            if ( !mpWindow && ! ( ! bDrawDirect && mpData->maTimer.IsActive()) )
+            {
+                mpData->maTimer.SetTimeout( pWindow->GetSettings().GetStyleSettings().GetCursorBlinkTime() );
+                if ( mpData->maTimer.GetTimeout() != STYLE_CURSOR_NOBLINKTIME )
+                    mpData->maTimer.Start();
+                else if ( !mpData->mbCurVisible )
+                    ImplDraw();
+                LOKNotify( pWindow, "cursor_invalidate" );
+                LOKNotify( pWindow, "cursor_visible" );
+            }
+        }
+    }
+}
+
+void vcl::Cursor::LOKNotify( vcl::Window* pWindow, const OUString& rAction )
+{
+    if (VclPtr<vcl::Window> pParent = pWindow->GetParentWithLOKNotifier())
+    {
+        assert(pWindow && "Cannot notify without a window");
+        assert(mpData && "Require ImplCursorData");
+        assert(comphelper::LibreOfficeKit::isActive());
+
+        if (comphelper::LibreOfficeKit::isDialogPainting())
+            return;
+
+        const vcl::ILibreOfficeKitNotifier* pNotifier = pParent->GetLOKNotifier();
+        std::vector<vcl::LOKPayloadItem> aItems;
+        if (rAction == "cursor_visible")
+            aItems.emplace_back("visible", mpData->mbCurVisible ? "true" : "false");
+        else if (rAction == "cursor_invalidate")
+        {
+            const long nX = pWindow->GetOutOffXPixel() + pWindow->LogicToPixel(GetPos()).X() - pParent->GetOutOffXPixel();
+            const long nY = pWindow->GetOutOffYPixel() + pWindow->LogicToPixel(GetPos()).Y() - pParent->GetOutOffYPixel();
+            Size aSize = pWindow->LogicToPixel(GetSize());
+            if (!aSize.Width())
+                aSize.setWidth( pWindow->GetSettings().GetStyleSettings().GetCursorSize() );
+
+            const tools::Rectangle aRect(Point(nX, nY), aSize);
+            aItems.emplace_back("rectangle", aRect.toString());
+        }
+
+        pNotifier->notifyWindow(pParent->GetLOKWindowId(), rAction, aItems);
+    }
+}
+
+bool vcl::Cursor::ImplDoHide( bool bSuspend )
+{
+    bool bWasCurVisible = false;
+    if ( mpData && mpData->mpWindow )
+    {
+        bWasCurVisible = mpData->mbCurVisible;
+        if ( mpData->mbCurVisible )
+            ImplRestore();
+
+        if ( !bSuspend )
+        {
+            LOKNotify( mpData->mpWindow, "cursor_visible" );
+            mpData->maTimer.Stop();
+            mpData->mpWindow = nullptr;
+        }
+    }
+    return bWasCurVisible;
+}
+
+void vcl::Cursor::ImplShow()
+{
+    ImplDoShow( true/*bDrawDirect*/, false );
+}
+
+void vcl::Cursor::ImplHide()
+{
+    ImplDoHide( false );
+}
+
+void vcl::Cursor::ImplResume( bool bRestore )
+{
+    ImplDoShow( false, bRestore );
+}
+
+bool vcl::Cursor::ImplSuspend()
+{
+    return ImplDoHide( true );
+}
+
+void vcl::Cursor::ImplNew()
+{
+    if ( mbVisible && mpData && mpData->mpWindow )
+    {
+        if ( mpData->mbCurVisible )
+            ImplRestore();
+
+        ImplDraw();
+        if ( !mpWindow )
+        {
+            LOKNotify( mpData->mpWindow, "cursor_invalidate" );
+            if ( mpData->maTimer.GetTimeout() != STYLE_CURSOR_NOBLINKTIME )
+                mpData->maTimer.Start();
+        }
+    }
+}
+
+IMPL_LINK_NOARG(vcl::Cursor, ImplTimerHdl, Timer *, void)
+{
+    if ( mpData->mbCurVisible )
+        ImplRestore();
+    else
+        ImplDraw();
+}
+
+vcl::Cursor::Cursor()
+{
+    mpData          = nullptr;
+    mpWindow        = nullptr;
+    mnOrientation   = 0;
+    mnDirection     = CursorDirection::NONE;
+    mnStyle         = 0;
+    mbVisible       = false;
+}
+
+vcl::Cursor::Cursor( const Cursor& rCursor ) :
+    maSize( rCursor.maSize ),
+    maPos( rCursor.maPos )
+{
+    mpData          = nullptr;
+    mpWindow        = nullptr;
+    mnOrientation   = rCursor.mnOrientation;
+    mnDirection     = rCursor.mnDirection;
+    mnStyle         = 0;
+    mbVisible       = rCursor.mbVisible;
+}
+
+vcl::Cursor::~Cursor()
+{
+    if (mpData && mpData->mbCurVisible)
+        ImplRestore();
+}
+
+void vcl::Cursor::SetStyle( sal_uInt16 nStyle )
+{
+    if ( mnStyle != nStyle )
+    {
+        mnStyle = nStyle;
+        ImplNew();
+    }
+}
+
+void vcl::Cursor::Show()
+{
+    if ( !mbVisible )
+    {
+        mbVisible = true;
+        ImplShow();
+    }
+}
+
+void vcl::Cursor::Hide()
+{
+    if ( mbVisible )
+    {
+        mbVisible = false;
+        ImplHide();
+    }
+}
+
+void vcl::Cursor::SetWindow( vcl::Window* pWindow )
+{
+    if ( mpWindow.get() != pWindow )
+    {
+        mpWindow = pWindow;
+        ImplNew();
+    }
+}
+
+void vcl::Cursor::SetPos( const Point& rPoint )
+{
+    if ( maPos != rPoint )
+    {
+        maPos = rPoint;
+        ImplNew();
+    }
+}
+
+void vcl::Cursor::SetSize( const Size& rSize )
+{
+    if ( maSize != rSize )
+    {
+        maSize = rSize;
+        ImplNew();
+    }
+}
+
+void vcl::Cursor::SetWidth( long nNewWidth )
+{
+    if ( maSize.Width() != nNewWidth )
+    {
+        maSize.setWidth( nNewWidth );
+        ImplNew();
+    }
+}
+
+void vcl::Cursor::SetOrientation( short nNewOrientation )
+{
+    if ( mnOrientation != nNewOrientation )
+    {
+        mnOrientation = nNewOrientation;
+        ImplNew();
+    }
+}
+
+void vcl::Cursor::SetDirection( CursorDirection nNewDirection )
+{
+    if ( mnDirection != nNewDirection )
+    {
+        mnDirection = nNewDirection;
+        ImplNew();
+    }
+}
+
+vcl::Cursor& vcl::Cursor::operator=( const vcl::Cursor& rCursor )
+{
+    maPos           = rCursor.maPos;
+    maSize          = rCursor.maSize;
+    mnOrientation   = rCursor.mnOrientation;
+    mnDirection     = rCursor.mnDirection;
+    mbVisible       = rCursor.mbVisible;
+    ImplNew();
+
+    return *this;
+}
+
+bool vcl::Cursor::operator==( const vcl::Cursor& rCursor ) const
+{
+    return
+        ((maPos         == rCursor.maPos)           &&
+         (maSize        == rCursor.maSize)          &&
+         (mnOrientation == rCursor.mnOrientation)   &&
+         (mnDirection   == rCursor.mnDirection)     &&
+         (mbVisible     == rCursor.mbVisible))
+        ;
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */