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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 <layout.hxx>
+
+#include <bastypes.hxx>
+#include <vcl/settings.hxx>
+#include <vcl/event.hxx>
+
+namespace basctl
+{
+
+namespace
+{
+// the thickness of the splitting lines
+tools::Long const nSplitThickness = 3;
+} // namespace
+
+// ctor for derived classes
+// pParent: the parent window (Shell)
+Layout::Layout (vcl::Window* pParent) :
+ Window(pParent, WB_CLIPCHILDREN),
+ pChild(nullptr),
+ bFirstSize(true),
+ aLeftSide(this, SplittedSide::Side::Left),
+ aBottomSide(this, SplittedSide::Side::Bottom)
+{
+ SetBackground(GetSettings().GetStyleSettings().GetWindowColor());
+
+ vcl::Font aFont = GetFont();
+ Size aSz = aFont.GetFontSize();
+ aSz.setHeight( aSz.Height() * 1.5 );
+ aFont.SetFontSize(aSz);
+ aFont.SetWeight(WEIGHT_BOLD);
+ aFont.SetColor(GetSettings().GetStyleSettings().GetWindowTextColor());
+ SetFont(aFont);
+}
+
+Layout::~Layout()
+{
+ disposeOnce();
+}
+
+void Layout::dispose()
+{
+ aLeftSide.dispose();
+ aBottomSide.dispose();
+ pChild.clear();
+ Window::dispose();
+}
+
+// removes a docking window
+void Layout::Remove (DockingWindow* pWin)
+{
+ aLeftSide.Remove(pWin);
+ aBottomSide.Remove(pWin);
+}
+
+// called by Window when resized
+void Layout::Resize()
+{
+ if (IsVisible())
+ ArrangeWindows();
+}
+
+// ArrangeWindows() -- arranges the child windows
+void Layout::ArrangeWindows ()
+{
+ // prevent recursion via OnFirstSize() -> Add() -> ArrangeWindows()
+ static bool bInArrangeWindows = false;
+ if (bInArrangeWindows)
+ return;
+ bInArrangeWindows = true;
+
+ Size const aSize = GetOutputSizePixel();
+ tools::Long const nWidth = aSize.Width(), nHeight = aSize.Height();
+ if (nWidth && nHeight) // non-empty size
+ {
+ // On first call the derived classes initializes the sizes of the
+ // docking windows. This cannot be done at construction because
+ // the Layout has empty size at that point.
+ if (bFirstSize)
+ {
+ bFirstSize = false;
+ OnFirstSize(nWidth, nHeight); // virtual
+ }
+
+ // sides
+ aBottomSide.ArrangeIn(tools::Rectangle(Point(0, 0), aSize));
+ aLeftSide.ArrangeIn(tools::Rectangle(Point(0, 0), Size(nWidth, nHeight - aBottomSide.GetSize())));
+ // child in the middle
+ pChild->SetPosSizePixel(
+ Point(aLeftSide.GetSize(), 0),
+ Size(nWidth - aLeftSide.GetSize(), nHeight - aBottomSide.GetSize())
+ );
+ }
+
+ bInArrangeWindows = false;
+}
+
+void Layout::Activating (BaseWindow& rWindow)
+{
+ // first activation
+ pChild = &rWindow;
+ ArrangeWindows();
+ Show();
+ pChild->Activating();
+}
+
+void Layout::Deactivating ()
+{
+ if (pChild)
+ pChild->Deactivating();
+ Hide();
+ pChild = nullptr;
+}
+
+// virtual
+void Layout::DataChanged (DataChangedEvent const& rDCEvt)
+{
+ Window::DataChanged(rDCEvt);
+ if (!(rDCEvt.GetType() == DataChangedEventType::SETTINGS && (rDCEvt.GetFlags() & AllSettingsFlags::STYLE)))
+ return;
+
+ bool bInvalidate = false;
+ Color aColor = GetSettings().GetStyleSettings().GetWindowColor();
+ const AllSettings* pOldSettings = rDCEvt.GetOldSettings();
+ if (!pOldSettings || aColor != pOldSettings->GetStyleSettings().GetWindowColor())
+ {
+ SetBackground(Wallpaper(aColor));
+ bInvalidate = true;
+ }
+ aColor = GetSettings().GetStyleSettings().GetWindowTextColor();
+ if (!pOldSettings || aColor != pOldSettings->GetStyleSettings().GetWindowTextColor())
+ {
+ vcl::Font aFont(GetFont());
+ aFont.SetColor(aColor);
+ SetFont(aFont);
+ bInvalidate = true;
+ }
+ if (bInvalidate)
+ Invalidate();
+}
+
+
+// SplittedSide
+
+
+// ctor
+Layout::SplittedSide::SplittedSide (Layout* pParent, Side eSide) :
+ rLayout(*pParent),
+ bVertical(eSide == Side::Left),
+ bLower(eSide == Side::Left),
+ nSize(0),
+ aSplitter(VclPtr<Splitter>::Create(pParent, bVertical ? WB_HSCROLL : WB_VSCROLL))
+{
+ InitSplitter(*aSplitter);
+}
+
+void Layout::SplittedSide::dispose()
+{
+ aSplitter.disposeAndClear();
+ for (auto & item : vItems)
+ {
+ item.pSplit.disposeAndClear();
+ item.pWin.clear();
+ }
+}
+
+// Add() -- adds a new window to the side (after construction)
+void Layout::SplittedSide::Add (DockingWindow* pWin, Size const& rSize)
+{
+ tools::Long const nSize1 = (bVertical ? rSize.Width() : rSize.Height()) + nSplitThickness;
+ tools::Long const nSize2 = bVertical ? rSize.Height() : rSize.Width();
+ // nSize
+ if (nSize1 > nSize)
+ nSize = nSize1;
+ // window
+ Item aItem;
+ aItem.pWin = pWin;
+ aItem.nStartPos = vItems.empty() ? 0 : vItems.back().nEndPos + nSplitThickness;
+ aItem.nEndPos = aItem.nStartPos + nSize2;
+ // splitter
+ if (!vItems.empty())
+ {
+ aItem.pSplit = VclPtr<Splitter>::Create(&rLayout, bVertical ? WB_VSCROLL : WB_HSCROLL);
+ aItem.pSplit->SetSplitPosPixel(aItem.nStartPos - nSplitThickness);
+ InitSplitter(*aItem.pSplit);
+ }
+ vItems.push_back(aItem);
+ // refresh
+ rLayout.ArrangeWindows();
+}
+
+// Remove() -- removes a window from the side (if contains)
+void Layout::SplittedSide::Remove (DockingWindow* pWin)
+{
+ // contains?
+ std::vector<Item>::size_type iWin;
+ for (iWin = 0; iWin != vItems.size(); ++iWin)
+ if (vItems[iWin].pWin == pWin)
+ break;
+ if (iWin == vItems.size())
+ return;
+ // remove
+ vItems[iWin].pSplit.disposeAndClear();
+ vItems[iWin].pWin.clear();
+ vItems.erase(vItems.begin() + iWin);
+ // if that was the first one, remove the first splitter line
+ if (iWin == 0 && !vItems.empty())
+ vItems.front().pSplit.reset();
+}
+
+// creating a Point or a Size object
+// The coordinate order depends on bVertical (reversed if true).
+inline Size Layout::SplittedSide::MakeSize (tools::Long A, tools::Long B) const
+{
+ return bVertical ? Size(B, A) : Size(A, B);
+}
+inline Point Layout::SplittedSide::MakePoint (tools::Long A, tools::Long B) const
+{
+ return bVertical ? Point(B, A) : Point(A, B);
+}
+
+// IsDocking() -- is this window currently docking in the strip?
+bool Layout::SplittedSide::IsDocking (DockingWindow const& rWin)
+{
+ return rWin.IsVisible() && !rWin.IsFloatingMode();
+}
+
+// IsEmpty() -- are there no windows docked in this strip?
+bool Layout::SplittedSide::IsEmpty () const
+{
+ for (auto const & i: vItems)
+ if (IsDocking(*i.pWin))
+ return false;
+ return true;
+}
+
+// GetSize() -- returns the width or height of the strip (depending on the direction)
+tools::Long Layout::SplittedSide::GetSize () const
+{
+ return IsEmpty() ? 0 : nSize;
+}
+
+// Arrange() -- arranges the docking windows
+// rRect: the available space
+void Layout::SplittedSide::ArrangeIn (tools::Rectangle const& rRect)
+{
+ // saving the rectangle
+ aRect = rRect;
+
+ // the length of the side
+ tools::Long const nLength = bVertical ? aRect.GetSize().Height() : aRect.GetSize().Width();
+ tools::Long const nOtherSize = bVertical ? aRect.GetSize().Width() : aRect.GetSize().Height();
+ // bVertical ? horizontal position : vertical position
+ tools::Long const nPos1 = (bVertical ? aRect.Left() : aRect.Top()) +
+ (bLower ? 0 : nOtherSize - (nSize - nSplitThickness));
+ // bVertical ? vertical position : horizontal position
+ tools::Long const nPos2 = bVertical ? aRect.Top() : aRect.Left();
+
+ // main line
+ bool const bEmpty = IsEmpty();
+ // shown if any of the windows is docked
+ if (!bEmpty)
+ {
+ aSplitter->Show();
+ // split position
+ aSplitter->SetSplitPosPixel((bLower ? nSize : nPos1) - nSplitThickness);
+ // the actual position and size
+ aSplitter->SetPosSizePixel(
+ MakePoint(nPos2, aSplitter->GetSplitPosPixel()),
+ MakeSize(nLength, nSplitThickness)
+ );
+ // dragging rectangle
+ aSplitter->SetDragRectPixel(aRect);
+ }
+ else
+ aSplitter->Hide();
+
+ // positioning separator lines and windows
+ bool bPrevDocking = false; // is the previous window docked?
+ tools::Long nStartPos = 0; // window position in the strip
+ std::vector<Item>::size_type iLastWin = vItems.size(); // index of last docking window in the strip
+
+ for (std::vector<Item>::size_type i = 0; i != vItems.size(); ++i)
+ {
+ // window
+ DockingWindow& rWin = *vItems[i].pWin;
+ bool const bDocking = IsDocking(rWin);
+ if (bDocking)
+ iLastWin = i;
+ // sizing window
+ rWin.ResizeIfDocking(
+ MakePoint(nPos2 + nStartPos, nPos1),
+ MakeSize(vItems[i].nEndPos - nStartPos, nSize - nSplitThickness)
+ );
+ // splitting line before the window
+ if (i > 0)
+ {
+ Splitter& rSplit = *vItems[i].pSplit;
+ // If neither of two adjacent windows are docked,
+ // the splitting line is hidden.
+ // If this window is docking but the previous isn't,
+ // then the splitting line is also hidden, because this window
+ // will occupy the space of the previous.
+ if (bPrevDocking)
+ {
+ rSplit.Show();
+ // the actual position and size of the line
+ rSplit.SetPosSizePixel(
+ MakePoint(nPos2 + nStartPos - nSplitThickness, nPos1),
+ MakeSize(nSplitThickness, nSize - nSplitThickness)
+ );
+ // the dragging rectangle
+ rSplit.SetDragRectPixel(tools::Rectangle(
+ MakePoint(nPos2, nPos1),
+ MakeSize(nLength, nSize - nSplitThickness)
+ ));
+ }
+ else
+ rSplit.Hide();
+ }
+ // next
+ bPrevDocking = bDocking;
+ if (bDocking)
+ nStartPos = vItems[i].nEndPos + nSplitThickness;
+ // We only set nStartPos if this window is docking, because otherwise
+ // the next window will occupy also the space of this window.
+ }
+
+ // filling the remaining space with the last docking window
+ if (bEmpty || vItems[iLastWin].nEndPos == nLength)
+ return;
+
+ Item& rItem = vItems[iLastWin];
+ Size aSize = rItem.pWin->GetDockingSize();
+ if (bVertical)
+ aSize.AdjustHeight( nLength - rItem.nEndPos );
+ else
+ aSize.AdjustWidth( nLength - rItem.nEndPos );
+ rItem.pWin->ResizeIfDocking(aSize);
+ // and hiding the split line after the window
+ if (iLastWin < vItems.size() - 1)
+ vItems[iLastWin + 1].pSplit->Hide();
+}
+
+IMPL_LINK(Layout::SplittedSide, SplitHdl, Splitter*, pSplitter, void)
+{
+ // checking margins
+ CheckMarginsFor(pSplitter);
+ // changing stored sizes
+ if (pSplitter == aSplitter.get())
+ {
+ // nSize
+ if (bLower)
+ nSize = pSplitter->GetSplitPosPixel();
+ else
+ nSize = (bVertical ? aRect.Right() : aRect.Bottom()) + 1 - pSplitter->GetSplitPosPixel();
+ }
+ else
+ {
+ // Item::nStartPos, Item::nLength
+ for (size_t i = 1; i < vItems.size(); ++i)
+ {
+ if (vItems[i].pSplit.get() == pSplitter)
+ {
+ // before the line
+ vItems[i - 1].nEndPos = pSplitter->GetSplitPosPixel();
+ // after the line
+ vItems[i].nStartPos = pSplitter->GetSplitPosPixel() + nSplitThickness;
+ }
+ }
+ }
+ // arranging windows
+ rLayout.ArrangeWindows();
+}
+
+void Layout::SplittedSide::CheckMarginsFor (Splitter* pSplitter)
+{
+ // The splitter line cannot be closer to the edges than nMargin pixels.
+ static tools::Long const nMargin = 16;
+ // Checking margins:
+ tools::Long const nLength = pSplitter->IsHorizontal() ?
+ aRect.GetWidth() : aRect.GetHeight();
+ if (!nLength)
+ return;
+
+ // bounds
+ tools::Long const nLower = (pSplitter->IsHorizontal() ? aRect.Left() : aRect.Top()) + nMargin;
+ tools::Long const nUpper = nLower + nLength - 2*nMargin;
+ // split position
+ tools::Long const nPos = pSplitter->GetSplitPosPixel();
+ // checking bounds
+ if (nPos < nLower)
+ pSplitter->SetSplitPosPixel(nLower);
+ if (nPos > nUpper)
+ pSplitter->SetSplitPosPixel(nUpper);
+}
+
+void Layout::SplittedSide::InitSplitter (Splitter& rSplitter)
+{
+ // link
+ rSplitter.SetSplitHdl(LINK(this, SplittedSide, SplitHdl));
+ // color
+ Color aColor = rLayout.GetSettings().GetStyleSettings().GetShadowColor();
+ rSplitter.GetOutDev()->SetLineColor(aColor);
+ rSplitter.GetOutDev()->SetFillColor(aColor);
+}
+
+
+} // namespace basctl
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */