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/* -*- 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 { "vcl ImplCursorData maTimer" }; // Timer
Point maPixPos; // Pixel-Position
Point maPixRotOff; // Pixel-Offset-Position
Size maPixSize; // Pixel-Size
Degree10 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
};
namespace
{
const char* pDisableCursorIndicator(getenv("SAL_DISABLE_CURSOR_INDICATOR"));
bool bDisableCursorIndicator(nullptr != pDisableCursorIndicator);
}
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 (!bDisableCursorIndicator && pData->mnDirection != CursorDirection::NONE)
{
Point pAry[7];
// Related system settings for "delta" could be:
// gtk cursor-aspect-ratio and windows SPI_GETCARETWIDTH
int delta = (aRect.getOpenHeight() * 4 / 100) + 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[2].AdjustY(delta);
pAry[3] = pAry[1];
pAry[3].AdjustY(delta * 2);
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*2);
pAry[5] = pAry[0];
pAry[5].AdjustX(-delta);
pAry[5].AdjustY(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;
vcl::PaintBufferGuardPtr pGuard;
const bool bDoubleBuffering = pWindow->SupportsDoubleBuffering();
if (bDoubleBuffering)
pGuard.reset(new vcl::PaintBufferGuard(pWindow->ImplGetWindowImpl()->mpFrameData, pWindow));
vcl::RenderContext* pRenderContext = bDoubleBuffering ? pGuard->GetRenderContext() : pWindow->GetOutDev();
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->GetOutDev(), *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 )
return;
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 )
return;
if ( !mpData )
{
mpData.reset( new ImplCursorData );
mpData->mbCurVisible = false;
mpData->maTimer.SetInvokeHandler( LINK( this, Cursor, ImplTimerHdl ) );
}
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, u"cursor_invalidate"_ustr );
LOKNotify( pWindow, u"cursor_visible"_ustr );
}
}
void vcl::Cursor::LOKNotify( vcl::Window* pWindow, const OUString& rAction )
{
VclPtr<vcl::Window> pParent = pWindow->GetParentWithLOKNotifier();
if (!pParent)
return;
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 tools::Long nX = pWindow->GetOutOffXPixel() + pWindow->LogicToPixel(GetPos()).X() - pParent->GetOutOffXPixel();
const tools::Long nY = pWindow->GetOutOffYPixel() + pWindow->LogicToPixel(GetPos()).Y() - pParent->GetOutOffYPixel();
Size aSize = pWindow->LogicToPixel(GetSize());
if (!aSize.Width())
aSize.setWidth( pWindow->GetSettings().GetStyleSettings().GetCursorSize() );
Point aPos(nX, nY);
if (pWindow->IsRTLEnabled() && pWindow->GetOutDev() && pParent->GetOutDev()
&& !pWindow->GetOutDev()->ImplIsAntiparallel())
pParent->GetOutDev()->ReMirror(aPos);
if (!pWindow->IsRTLEnabled() && pWindow->GetOutDev() && pParent->GetOutDev()
&& pWindow->GetOutDev()->ImplIsAntiparallel())
{
pWindow->GetOutDev()->ReMirror(aPos);
pParent->GetOutDev()->ReMirror(aPos);
}
const tools::Rectangle aRect(aPos, 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, u"cursor_visible"_ustr );
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) )
return;
if ( mpData->mbCurVisible )
ImplRestore();
ImplDraw();
if ( !mpWindow )
{
LOKNotify( mpData->mpWindow, u"cursor_invalidate"_ustr );
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_deg10;
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( tools::Long nNewWidth )
{
if ( maSize.Width() != nNewWidth )
{
maSize.setWidth( nNewWidth );
ImplNew();
}
}
void vcl::Cursor::SetOrientation( Degree10 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: */
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