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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 09:06:44 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 09:06:44 +0000
commited5640d8b587fbcfed7dd7967f3de04b37a76f26 (patch)
tree7a5f7c6c9d02226d7471cb3cc8fbbf631b415303 /svx/source/svdraw/sdrpaintwindow.cxx
parentInitial commit. (diff)
downloadlibreoffice-ed5640d8b587fbcfed7dd7967f3de04b37a76f26.tar.xz
libreoffice-ed5640d8b587fbcfed7dd7967f3de04b37a76f26.zip
Adding upstream version 4:7.4.7.upstream/4%7.4.7upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'svx/source/svdraw/sdrpaintwindow.cxx')
-rw-r--r--svx/source/svdraw/sdrpaintwindow.cxx346
1 files changed, 346 insertions, 0 deletions
diff --git a/svx/source/svdraw/sdrpaintwindow.cxx b/svx/source/svdraw/sdrpaintwindow.cxx
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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 <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(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(SvtOptionsDrawinglayer::GetStripeLength());
+}
+
+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();
+
+ DestroyPreRenderDevice();
+}
+
+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));
+ }
+ }
+ else
+ {
+ DestroyPreRenderDevice();
+ }
+
+ if(mpPreRenderDevice)
+ {
+ mpPreRenderDevice->PreparePreRenderDevice();
+ }
+}
+
+void SdrPaintWindow::DestroyPreRenderDevice()
+{
+ 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: */