413 lines
12 KiB
C++
413 lines
12 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/*
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* This file is part of the LibreOffice project.
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*
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* This file incorporates work covered by the following license notice:
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed
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* with this work for additional information regarding copyright
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* ownership. The ASF licenses this file to you under the Apache
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* License, Version 2.0 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.apache.org/licenses/LICENSE-2.0 .
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*/
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#include "layout.hxx"
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#include "bastypes.hxx"
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#include <boost/make_shared.hpp>
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namespace basctl
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{
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namespace
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{
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// the thickness of the splitting lines
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static long const nSplitThickness = 3;
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} // namespace
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// ctor for derived classes
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// pParent: the parent window (Shell)
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Layout::Layout (Window* pParent) :
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Window(pParent, WB_CLIPCHILDREN),
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pChild(0),
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bFirstSize(true),
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aLeftSide(this, SplittedSide::Left),
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aBottomSide(this, SplittedSide::Bottom)
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{
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SetBackground(GetSettings().GetStyleSettings().GetWindowColor());
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Font aFont = GetFont();
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Size aSz = aFont.GetSize();
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aSz.Height() *= 1.5;
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aFont.SetSize(aSz);
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aFont.SetWeight(WEIGHT_BOLD);
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aFont.SetColor(GetSettings().GetStyleSettings().GetWindowTextColor());
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SetFont(aFont);
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}
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// virtual dtor
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Layout::~Layout()
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{ }
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// removes a docking window
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void Layout::Remove (DockingWindow* pWin)
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{
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aLeftSide.Remove(pWin);
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aBottomSide.Remove(pWin);
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}
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// called by Window when resized
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void Layout::Resize()
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{
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if (IsVisible())
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ArrangeWindows();
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}
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// ArrangeWindows() -- arranges the child windows
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void Layout::ArrangeWindows ()
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{
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// prevent recursion via OnFirstSize() -> Add() -> ArrangeWindows()
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static bool bInArrangeWindows = false;
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if (bInArrangeWindows)
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return;
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bInArrangeWindows = true;
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Size const aSize = GetOutputSizePixel();
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long const nWidth = aSize.Width(), nHeight = aSize.Height();
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if (nWidth && nHeight) // non-empty size
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{
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// On first call the derived classes initializes the sizes of the
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// docking windows. This cannot be done at construction because
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// the Layout has empty size at that point.
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if (bFirstSize)
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{
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bFirstSize = false;
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this->OnFirstSize(nWidth, nHeight); // virtual
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}
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// sides
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aBottomSide.ArrangeIn(Rectangle(Point(0, 0), aSize));
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aLeftSide.ArrangeIn(Rectangle(Point(0, 0), Size(nWidth, nHeight - aBottomSide.GetSize())));
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// child in the middle
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pChild->SetPosSizePixel(
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Point(aLeftSide.GetSize(), 0),
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Size(nWidth - aLeftSide.GetSize(), nHeight - aBottomSide.GetSize())
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);
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}
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bInArrangeWindows = false;
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}
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void Layout::DockaWindow (DockingWindow*)
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{
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ArrangeWindows();
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}
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void Layout::Activating (BaseWindow& rWindow)
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{
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// first activation
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pChild = &rWindow;
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ArrangeWindows();
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Show();
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pChild->Activating();
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}
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void Layout::Deactivating ()
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{
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if (pChild)
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pChild->Deactivating();
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Hide();
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pChild = 0;
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}
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// virtual
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void Layout::DataChanged (DataChangedEvent const& rDCEvt)
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{
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Window::DataChanged(rDCEvt);
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if (rDCEvt.GetType() == DATACHANGED_SETTINGS && (rDCEvt.GetFlags() & SETTINGS_STYLE))
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{
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bool bInvalidate = false;
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Color aColor = GetSettings().GetStyleSettings().GetWindowColor();
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if (aColor != rDCEvt.GetOldSettings()->GetStyleSettings().GetWindowColor())
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{
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SetBackground(Wallpaper(aColor));
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bInvalidate = true;
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}
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aColor = GetSettings().GetStyleSettings().GetWindowTextColor();
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if (aColor != rDCEvt.GetOldSettings()->GetStyleSettings().GetWindowTextColor())
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{
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Font aFont(GetFont());
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aFont.SetColor(aColor);
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SetFont(aFont);
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bInvalidate = true;
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}
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if (bInvalidate)
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Invalidate();
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}
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}
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//
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// SplittedSide
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// ============
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//
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// ctor
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Layout::SplittedSide::SplittedSide (Layout* pParent, Side eSide) :
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rLayout(*pParent),
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bVertical(eSide == Left || eSide == Right),
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bLower(eSide == Left || eSide == Top),
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nSize(0),
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aSplitter(pParent, bVertical ? WB_HSCROLL : WB_VSCROLL)
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{
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InitSplitter(aSplitter);
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}
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// Add() -- adds a new window to the side (after construction)
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void Layout::SplittedSide::Add (DockingWindow* pWin, Size const& rSize)
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{
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long const nSize1 = (bVertical ? rSize.Width() : rSize.Height()) + nSplitThickness;
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long const nSize2 = bVertical ? rSize.Height() : rSize.Width();
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// nSize
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if (nSize1 > nSize)
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nSize = nSize1;
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// window
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Item aItem;
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aItem.pWin = pWin;
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aItem.nStartPos = vItems.empty() ? 0 : vItems.back().nEndPos + nSplitThickness;
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aItem.nEndPos = aItem.nStartPos + nSize2;
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// splitter
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if (!vItems.empty())
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{
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aItem.pSplit = boost::make_shared<Splitter>(&rLayout, bVertical ? WB_VSCROLL : WB_HSCROLL);
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aItem.pSplit->SetSplitPosPixel(aItem.nStartPos - nSplitThickness);
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InitSplitter(*aItem.pSplit);
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}
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vItems.push_back(aItem);
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// refresh
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rLayout.ArrangeWindows();
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}
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// Remove() -- removes a window from the side (if contains)
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void Layout::SplittedSide::Remove (DockingWindow* pWin)
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{
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// contains?
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unsigned iWin;
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for (iWin = 0; iWin != vItems.size(); ++iWin)
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if (vItems[iWin].pWin == pWin)
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break;
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if (iWin == vItems.size())
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return;
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// remove
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vItems.erase(vItems.begin() + iWin);
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// if that was the first one, remove the first splitter line
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if (iWin == 0 && !vItems.empty())
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vItems.front().pSplit.reset();
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}
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// creating a Point or a Size object
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// The coordinate order depends on bVertical (reversed if true).
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inline Size Layout::SplittedSide::MakeSize (long A, long B) const
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{
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return bVertical ? Size(B, A) : Size(A, B);
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}
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inline Point Layout::SplittedSide::MakePoint (long A, long B) const
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{
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return bVertical ? Point(B, A) : Point(A, B);
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}
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// IsDocking() -- is this window currently docking in the strip?
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bool Layout::SplittedSide::IsDocking (DockingWindow const& rWin)
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{
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return rWin.IsVisible() && !rWin.IsFloatingMode();
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}
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// IsEmpty() -- are there no windows docked in this strip?
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bool Layout::SplittedSide::IsEmpty () const
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{
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for (unsigned i = 0; i != vItems.size(); ++i)
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if (IsDocking(*vItems[i].pWin))
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return false;
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return true;
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}
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// GetSize() -- returns the width or height of the strip (depending on the direction)
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long Layout::SplittedSide::GetSize () const
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{
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return IsEmpty() ? 0 : nSize;
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}
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// Arrange() -- arranges the docking windows
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// rRect: the available space
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void Layout::SplittedSide::ArrangeIn (Rectangle const& rRect)
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{
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// saving the rectangle
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aRect = rRect;
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// the length of the side
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long const nLength = bVertical ? aRect.GetSize().Height() : aRect.GetSize().Width();
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long const nOtherSize = bVertical ? aRect.GetSize().Width() : aRect.GetSize().Height();
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// bVertical ? horizontal pozition : vertical pozition
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long const nPos1 = (bVertical ? aRect.Left() : aRect.Top()) +
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(bLower ? 0 : nOtherSize - (nSize - nSplitThickness));
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// bVertical ? vertical position : horizontal position
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long const nPos2 = bVertical ? aRect.Top() : aRect.Left();
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// main line
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bool const bEmpty = IsEmpty();
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// shown if any of the windows is docked
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if (!bEmpty)
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{
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aSplitter.Show();
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// split position
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aSplitter.SetSplitPosPixel((bLower ? nSize : nPos1) - nSplitThickness);
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// the actual position and size
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aSplitter.SetPosSizePixel(
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MakePoint(nPos2, aSplitter.GetSplitPosPixel()),
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MakeSize(nLength, nSplitThickness)
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);
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// dragging rectangle
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aSplitter.SetDragRectPixel(aRect);
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}
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else
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aSplitter.Hide();
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// positioning separator lines and windows
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bool bPrevDocking = false; // is the previous window docked?
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long nStartPos = 0; // window position in the strip
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unsigned iLastWin = vItems.size(); // index of last docking window in the strip
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for (unsigned i = 0; i != vItems.size(); ++i)
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{
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// window
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DockingWindow& rWin = *vItems[i].pWin;
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bool const bDocking = IsDocking(rWin);
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if (bDocking)
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iLastWin = i;
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// sizing window
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rWin.ResizeIfDocking(
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MakePoint(nPos2 + nStartPos, nPos1),
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MakeSize(vItems[i].nEndPos - nStartPos, nSize - nSplitThickness)
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);
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// splitting line before the window
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if (i > 0)
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{
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Splitter& rSplit = *vItems[i].pSplit;
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// If neither of two adjacent windows are docked,
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// the splitting line is hidden.
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// If this window is docking but the previous isn't,
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// then the splitting line is also hidden, because this window
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// will occupy the space of the previous.
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if (bPrevDocking)
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{
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rSplit.Show();
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// the actual position and size of the line
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rSplit.SetPosSizePixel(
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MakePoint(nPos2 + nStartPos - nSplitThickness, nPos1),
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MakeSize(nSplitThickness, nSize - nSplitThickness)
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);
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// the dragging rectangle
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rSplit.SetDragRectPixel(Rectangle(
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MakePoint(nPos2, nPos1),
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MakeSize(nLength, nSize - nSplitThickness)
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));
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}
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else
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rSplit.Hide();
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}
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// next
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bPrevDocking = bDocking;
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if (bDocking)
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nStartPos = vItems[i].nEndPos + nSplitThickness;
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// We only set nStartPos if this window is docking, because otherwise
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// the next window will occupy also the space of this window.
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}
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// filling the remaining space with the last docking window
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if (!bEmpty && vItems[iLastWin].nEndPos != nLength)
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{
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Item& rItem = vItems[iLastWin];
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Size aSize = rItem.pWin->GetDockingSize();
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(bVertical ? aSize.Height() : aSize.Width()) += nLength - rItem.nEndPos;
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rItem.pWin->ResizeIfDocking(aSize);
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// and hiding the split line after the window
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if (iLastWin < vItems.size() - 1)
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vItems[iLastWin + 1].pSplit->Hide();
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}
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}
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IMPL_LINK(Layout::SplittedSide, SplitHdl, Splitter*, pSplitter)
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{
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// checking margins
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CheckMarginsFor(pSplitter);
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// changing stored sizes
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if (pSplitter == &aSplitter)
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{
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// nSize
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if (bLower)
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nSize = pSplitter->GetSplitPosPixel();
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else
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nSize = (bVertical ? aRect.Right() : aRect.Bottom()) + 1 - pSplitter->GetSplitPosPixel();
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}
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else
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{
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// Item::nStartPos, Item::nLength
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for (unsigned i = 1; i < vItems.size(); ++i)
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{
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if (vItems[i].pSplit.get() == pSplitter)
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{
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// before the line
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vItems[i - 1].nEndPos = pSplitter->GetSplitPosPixel();
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// after the line
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vItems[i].nStartPos = pSplitter->GetSplitPosPixel() + nSplitThickness;
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}
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}
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}
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// arranging windows
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rLayout.ArrangeWindows();
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return 0;
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}
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void Layout::SplittedSide::CheckMarginsFor (Splitter* pSplitter)
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{
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// The splitter line cannot be closer to the edges than nMargin pixels.
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static long const nMargin = 16;
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// Checking margins:
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if (long const nLength = pSplitter->IsHorizontal() ?
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aRect.GetWidth() : aRect.GetHeight()
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) {
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// bounds
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long const nLower = (pSplitter->IsHorizontal() ? aRect.Left() : aRect.Top()) + nMargin;
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long const nUpper = nLower + nLength - 2*nMargin;
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// split position
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long const nPos = pSplitter->GetSplitPosPixel();
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// checking bounds
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if (nPos < nLower)
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pSplitter->SetSplitPosPixel(nLower);
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if (nPos > nUpper)
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pSplitter->SetSplitPosPixel(nUpper);
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}
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}
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void Layout::SplittedSide::InitSplitter (Splitter& rSplitter)
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{
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// link
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rSplitter.SetSplitHdl(LINK(this, SplittedSide, SplitHdl));
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// color
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Color aColor = rLayout.GetSettings().GetStyleSettings().GetShadowColor();
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rSplitter.SetLineColor(aColor);
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rSplitter.SetFillColor(aColor);
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}
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} // namespace basctl
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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