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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 <comphelper/lok.hxx>
#include <osl/diagnose.h>
#include <svx/sdrpaintwindow.hxx>
#include <sdr/overlay/overlaymanagerbuffered.hxx>
#include <svx/svdpntv.hxx>
#include <vcl/gdimtf.hxx>
#include <vcl/svapp.hxx>
#include <vcl/settings.hxx>
#include <vcl/window.hxx>
#include <svtools/optionsdrawinglayer.hxx>
#include <officecfg/Office/Common.hxx>
#include <set>
#include <vector>
namespace {
//rhbz#1007697 do this in two loops, one to collect the candidates
//and another to update them because updating a candidate can
//trigger the candidate to be deleted, so asking for its
//sibling after that is going to fail hard
class CandidateMgr
{
std::vector<VclPtr<vcl::Window> > m_aCandidates;
std::set<VclPtr<vcl::Window> > m_aDeletedCandidates;
DECL_LINK(WindowEventListener, VclWindowEvent&, void);
public:
void PaintTransparentChildren(vcl::Window const & rWindow, tools::Rectangle const& rPixelRect);
~CandidateMgr();
};
}
IMPL_LINK(CandidateMgr, WindowEventListener, VclWindowEvent&, rEvent, void)
{
vcl::Window* pWindow = rEvent.GetWindow();
if (rEvent.GetId() == VclEventId::ObjectDying)
{
m_aDeletedCandidates.insert(pWindow);
}
}
CandidateMgr::~CandidateMgr()
{
for (VclPtr<vcl::Window>& pCandidate : m_aCandidates)
{
if (m_aDeletedCandidates.find(pCandidate) != m_aDeletedCandidates.end())
continue;
pCandidate->RemoveEventListener(LINK(this, CandidateMgr, WindowEventListener));
}
}
void PaintTransparentChildren(vcl::Window const & rWindow, tools::Rectangle const& rPixelRect)
{
if (!rWindow.IsChildTransparentModeEnabled())
return;
CandidateMgr aManager;
aManager.PaintTransparentChildren(rWindow, rPixelRect);
}
void CandidateMgr::PaintTransparentChildren(vcl::Window const & rWindow, tools::Rectangle const& rPixelRect)
{
vcl::Window * pCandidate = rWindow.GetWindow( GetWindowType::FirstChild );
while (pCandidate)
{
if (pCandidate->IsPaintTransparent())
{
const tools::Rectangle aCandidatePosSizePixel(
pCandidate->GetPosPixel(),
pCandidate->GetSizePixel());
if (aCandidatePosSizePixel.Overlaps(rPixelRect))
{
m_aCandidates.emplace_back(pCandidate);
pCandidate->AddEventListener(LINK(this, CandidateMgr, WindowEventListener));
}
}
pCandidate = pCandidate->GetWindow( GetWindowType::Next );
}
for (const auto& rpCandidate : m_aCandidates)
{
pCandidate = rpCandidate.get();
if (m_aDeletedCandidates.find(pCandidate) != m_aDeletedCandidates.end())
continue;
//rhbz#1007697 this can cause the window itself to be
//deleted. So we are listening to see if that happens
//and if so, then skip the update
pCandidate->Invalidate(InvalidateFlags::NoTransparent|InvalidateFlags::Children);
// important: actually paint the child here!
if (m_aDeletedCandidates.find(pCandidate) != m_aDeletedCandidates.end())
continue;
pCandidate->PaintImmediately();
}
}
SdrPreRenderDevice::SdrPreRenderDevice(OutputDevice& rOriginal)
: mpOutputDevice(&rOriginal),
mpPreRenderDevice(VclPtr<VirtualDevice>::Create())
{
}
SdrPreRenderDevice::~SdrPreRenderDevice()
{
mpPreRenderDevice.disposeAndClear();
}
void SdrPreRenderDevice::PreparePreRenderDevice()
{
// compare size of mpPreRenderDevice with size of visible area
if(mpPreRenderDevice->GetOutputSizePixel() != mpOutputDevice->GetOutputSizePixel())
{
mpPreRenderDevice->SetOutputSizePixel(mpOutputDevice->GetOutputSizePixel());
}
// Also compare the MapModes for zoom/scroll changes
if(mpPreRenderDevice->GetMapMode() != mpOutputDevice->GetMapMode())
{
mpPreRenderDevice->SetMapMode(mpOutputDevice->GetMapMode());
}
// #i29186#
mpPreRenderDevice->SetDrawMode(mpOutputDevice->GetDrawMode());
mpPreRenderDevice->SetSettings(mpOutputDevice->GetSettings());
}
void SdrPreRenderDevice::OutputPreRenderDevice(const vcl::Region& rExpandedRegion)
{
// region to pixels
const vcl::Region aRegionPixel(mpOutputDevice->LogicToPixel(rExpandedRegion));
//RegionHandle aRegionHandle(aRegionPixel.BeginEnumRects());
//Rectangle aRegionRectanglePixel;
// MapModes off
bool bMapModeWasEnabledDest(mpOutputDevice->IsMapModeEnabled());
bool bMapModeWasEnabledSource(mpPreRenderDevice->IsMapModeEnabled());
mpOutputDevice->EnableMapMode(false);
mpPreRenderDevice->EnableMapMode(false);
RectangleVector aRectangles;
aRegionPixel.GetRegionRectangles(aRectangles);
for(const auto& rRect : aRectangles)
{
// for each rectangle, copy the area
const Point aTopLeft(rRect.TopLeft());
const Size aSize(rRect.GetSize());
mpOutputDevice->DrawOutDev(
aTopLeft, aSize,
aTopLeft, aSize,
*mpPreRenderDevice);
}
mpOutputDevice->EnableMapMode(bMapModeWasEnabledDest);
mpPreRenderDevice->EnableMapMode(bMapModeWasEnabledSource);
}
void SdrPaintView::InitOverlayManager(const rtl::Reference<sdr::overlay::OverlayManager> & xOverlayManager)
{
Color aColA(SvtOptionsDrawinglayer::GetStripeColorA());
Color aColB(SvtOptionsDrawinglayer::GetStripeColorB());
if (Application::GetSettings().GetStyleSettings().GetHighContrastMode())
{
aColA = aColB = Application::GetSettings().GetStyleSettings().GetHighlightColor();
aColB.Invert();
}
xOverlayManager->setStripeColorA(aColA);
xOverlayManager->setStripeColorB(aColB);
xOverlayManager->setStripeLengthPixel(officecfg::Office::Common::Drawinglayer::StripeLength::get());
}
rtl::Reference<sdr::overlay::OverlayManager> SdrPaintView::CreateOverlayManager(OutputDevice& rOutputDevice) const
{
rtl::Reference<sdr::overlay::OverlayManager> xOverlayManager;
// is it a window?
if (OUTDEV_WINDOW == rOutputDevice.GetOutDevType())
{
vcl::Window* pWindow = rOutputDevice.GetOwnerWindow();
// decide which OverlayManager to use
if (IsBufferedOverlayAllowed() && !pWindow->SupportsDoubleBuffering())
{
// buffered OverlayManager, buffers its background and refreshes from there
// for pure overlay changes (no system redraw). The 3rd parameter specifies
// whether that refresh itself will use a 2nd vdev to avoid flickering.
// Also hand over the old OverlayManager if existent; this means to take over
// the registered OverlayObjects from it
xOverlayManager = sdr::overlay::OverlayManagerBuffered::create(rOutputDevice);
}
else
{
// unbuffered OverlayManager, just invalidates places where changes
// take place
// Also hand over the old OverlayManager if existent; this means to take over
// the registered OverlayObjects from it
xOverlayManager = sdr::overlay::OverlayManager::create(rOutputDevice);
}
OSL_ENSURE(xOverlayManager.is(), "SdrPaintWindow::SdrPaintWindow: Could not allocate an overlayManager (!)");
// Request a repaint so that the buffered overlay manager fills
// its buffer properly. This is a workaround for missing buffer
// updates.
if (!comphelper::LibreOfficeKit::isActive())
{
pWindow->Invalidate();
}
InitOverlayManager(xOverlayManager);
}
return xOverlayManager;
}
void SdrPaintWindow::impCreateOverlayManager()
{
// not yet one created?
if(!mxOverlayManager.is())
mxOverlayManager = mrPaintView.CreateOverlayManager(GetOutputDevice());
}
SdrPaintWindow::SdrPaintWindow(SdrPaintView& rNewPaintView, OutputDevice& rOut, vcl::Window* pWindow)
: mpOutputDevice(&rOut),
mpWindow(pWindow),
mrPaintView(rNewPaintView),
mbTemporaryTarget(false), // #i72889#
mbOutputToWindow(OUTDEV_WINDOW == mpOutputDevice->GetOutDevType()),
mpPatched(nullptr)
{
}
SdrPaintWindow::~SdrPaintWindow()
{
mxOverlayManager.clear();
mpPreRenderDevice.reset();
}
rtl::Reference< sdr::overlay::OverlayManager > const & SdrPaintWindow::GetOverlayManager() const
{
if(!mxOverlayManager.is())
{
// Create buffered overlay manager by default.
const_cast< SdrPaintWindow* >(this)->impCreateOverlayManager();
}
return mxOverlayManager;
}
tools::Rectangle SdrPaintWindow::GetVisibleArea() const
{
Size aVisSizePixel(GetOutputDevice().GetOutputSizePixel());
return GetOutputDevice().PixelToLogic(tools::Rectangle(Point(0,0), aVisSizePixel));
}
bool SdrPaintWindow::OutputToRecordingMetaFile() const
{
GDIMetaFile* pMetaFile = mpOutputDevice->GetConnectMetaFile();
return (pMetaFile && pMetaFile->IsRecord() && !pMetaFile->IsPause());
}
void SdrPaintWindow::PreparePreRenderDevice()
{
const bool bPrepareBufferedOutput(
mrPaintView.IsBufferedOutputAllowed()
&& !OutputToPrinter()
&& !mpOutputDevice->IsVirtual()
&& !OutputToRecordingMetaFile());
if(bPrepareBufferedOutput)
{
if(!mpPreRenderDevice)
{
mpPreRenderDevice.reset(new SdrPreRenderDevice(*mpOutputDevice));
}
mpPreRenderDevice->PreparePreRenderDevice();
}
else
{
mpPreRenderDevice.reset();
}
}
void SdrPaintWindow::OutputPreRenderDevice(const vcl::Region& rExpandedRegion)
{
if(mpPreRenderDevice)
{
mpPreRenderDevice->OutputPreRenderDevice(rExpandedRegion);
}
}
// #i73602# add flag if buffer shall be used
void SdrPaintWindow::DrawOverlay(const vcl::Region& rRegion)
{
// ## force creation of OverlayManager since the first repaint needs to
// save the background to get a controlled start into overlay mechanism
impCreateOverlayManager();
if(mxOverlayManager.is() && !OutputToPrinter())
{
if(mpPreRenderDevice)
{
mxOverlayManager->completeRedraw(rRegion, &mpPreRenderDevice->GetPreRenderDevice());
}
else
{
mxOverlayManager->completeRedraw(rRegion);
}
}
}
void SdrPaintWindow::SetRedrawRegion(const vcl::Region& rNew)
{
maRedrawRegion = rNew;
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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