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| -rw-r--r-- | basctl/source/basicide/layout.cxx | 430 |
1 files changed, 430 insertions, 0 deletions
diff --git a/basctl/source/basicide/layout.cxx b/basctl/source/basicide/layout.cxx new file mode 100644 index 000000000..eb81e7964 --- /dev/null +++ b/basctl/source/basicide/layout.cxx @@ -0,0 +1,430 @@ +/* -*- 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 +static 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(); + 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) +{ + long const nSize1 = (bVertical ? rSize.Width() : rSize.Height()) + nSplitThickness; + 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 (long A, long B) const +{ + return bVertical ? Size(B, A) : Size(A, B); +} +inline Point Layout::SplittedSide::MakePoint (long A, 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) +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 + long const nLength = bVertical ? aRect.GetSize().Height() : aRect.GetSize().Width(); + long const nOtherSize = bVertical ? aRect.GetSize().Width() : aRect.GetSize().Height(); + // bVertical ? horizontal position : vertical position + long const nPos1 = (bVertical ? aRect.Left() : aRect.Top()) + + (bLower ? 0 : nOtherSize - (nSize - nSplitThickness)); + // bVertical ? vertical position : horizontal position + 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? + 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 long const nMargin = 16; + // Checking margins: + long const nLength = pSplitter->IsHorizontal() ? + aRect.GetWidth() : aRect.GetHeight(); + if (!nLength) + return; + + // bounds + long const nLower = (pSplitter->IsHorizontal() ? aRect.Left() : aRect.Top()) + nMargin; + long const nUpper = nLower + nLength - 2*nMargin; + // split position + 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.SetLineColor(aColor); + rSplitter.SetFillColor(aColor); +} + + +} // namespace basctl + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |