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-rw-r--r--vcl/source/window/split.cxx698
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diff --git a/vcl/source/window/split.cxx b/vcl/source/window/split.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 <tools/poly.hxx>
+
+#include <vcl/event.hxx>
+#include <vcl/split.hxx>
+#include <vcl/svapp.hxx>
+#include <vcl/syswin.hxx>
+#include <vcl/taskpanelist.hxx>
+#include <vcl/lineinfo.hxx>
+#include <vcl/settings.hxx>
+#include <vcl/ptrstyle.hxx>
+#include <vcl/lazydelete.hxx>
+
+#include <window.h>
+
+namespace
+{
+ Wallpaper& ImplBlackWall()
+ {
+ static vcl::DeleteOnDeinit< Wallpaper > SINGLETON(COL_BLACK);
+ return *SINGLETON.get();
+ }
+ Wallpaper& ImplWhiteWall()
+ {
+ static vcl::DeleteOnDeinit< Wallpaper > SINGLETON(COL_LIGHTGRAY);
+ return *SINGLETON.get();
+ }
+}
+
+// Should only be called from an ImplInit method for initialization or
+// after checking bNew is different from the current mbHorzSplit value.
+// The public method that does that check is Splitter::SetHorizontal().
+void Splitter::ImplInitHorVer(bool bNew)
+{
+ mbHorzSplit = bNew;
+
+ PointerStyle ePointerStyle;
+ const StyleSettings& rSettings = GetSettings().GetStyleSettings();
+
+ if ( mbHorzSplit )
+ {
+ ePointerStyle = PointerStyle::HSplit;
+ SetSizePixel( Size( StyleSettings::GetSplitSize(), rSettings.GetScrollBarSize() ) );
+ }
+ else
+ {
+ ePointerStyle = PointerStyle::VSplit;
+ SetSizePixel( Size( rSettings.GetScrollBarSize(), StyleSettings::GetSplitSize() ) );
+ }
+
+ SetPointer( ePointerStyle );
+}
+
+void Splitter::ImplInit( vcl::Window* pParent, WinBits nWinStyle )
+{
+ Window::ImplInit( pParent, nWinStyle, nullptr );
+
+ mpRefWin = pParent;
+
+ ImplInitHorVer(nWinStyle & WB_HSCROLL);
+
+ if( GetSettings().GetStyleSettings().GetFaceColor().IsDark() )
+ SetBackground( ImplWhiteWall() );
+ else
+ SetBackground( ImplBlackWall() );
+
+ TaskPaneList *pTList = GetSystemWindow()->GetTaskPaneList();
+ pTList->AddWindow( this );
+}
+
+void Splitter::ImplSplitMousePos( Point& rPos )
+{
+ if ( mbHorzSplit )
+ {
+ if ( rPos.X() > maDragRect.Right()-1 )
+ rPos.setX( maDragRect.Right()-1 );
+ if ( rPos.X() < maDragRect.Left()+1 )
+ rPos.setX( maDragRect.Left()+1 );
+ }
+ else
+ {
+ if ( rPos.Y() > maDragRect.Bottom()-1 )
+ rPos.setY( maDragRect.Bottom()-1 );
+ if ( rPos.Y() < maDragRect.Top()+1 )
+ rPos.setY( maDragRect.Top()+1 );
+ }
+}
+
+void Splitter::ImplDrawSplitter()
+{
+ tools::Rectangle aInvRect( maDragRect );
+
+ if ( mbHorzSplit )
+ {
+ aInvRect.SetLeft( maDragPos.X() - 1 );
+ aInvRect.SetRight( maDragPos.X() + 1 );
+ }
+ else
+ {
+ aInvRect.SetTop( maDragPos.Y() - 1 );
+ aInvRect.SetBottom( maDragPos.Y() + 1 );
+ }
+
+ mpRefWin->InvertTracking( mpRefWin->PixelToLogic(aInvRect), ShowTrackFlags::Split );
+}
+
+Splitter::Splitter( vcl::Window* pParent, WinBits nStyle ) :
+ Window( WindowType::SPLITTER ),
+ mpRefWin( nullptr ),
+ mnSplitPos( 0 ),
+ mnLastSplitPos( 0 ),
+ mnStartSplitPos( 0 ),
+ mbDragFull( false ),
+ mbKbdSplitting( false ),
+ mbInKeyEvent( false ),
+ mnKeyboardStepSize( SPLITTER_DEFAULTSTEPSIZE )
+{
+ ImplGetWindowImpl()->mbSplitter = true;
+
+ ImplInit( pParent, nStyle );
+
+ GetOutDev()->SetLineColor();
+ GetOutDev()->SetFillColor();
+}
+
+Splitter::~Splitter()
+{
+ disposeOnce();
+}
+
+void Splitter::dispose()
+{
+ SystemWindow *pSysWin = GetSystemWindow();
+ if(pSysWin)
+ {
+ TaskPaneList *pTList = pSysWin->GetTaskPaneList();
+ pTList->RemoveWindow(this);
+ }
+ mpRefWin.clear();
+ Window::dispose();
+}
+
+void Splitter::SetHorizontal(bool bNew)
+{
+ if(bNew != mbHorzSplit)
+ {
+ ImplInitHorVer(bNew);
+ }
+}
+
+void Splitter::SetKeyboardStepSize( tools::Long nStepSize )
+{
+ mnKeyboardStepSize = nStepSize;
+}
+
+Splitter* Splitter::ImplFindSibling()
+{
+ // look for another splitter with the same parent but different orientation
+ vcl::Window *pWin = GetParent()->GetWindow( GetWindowType::FirstChild );
+ Splitter *pSplitter = nullptr;
+ while( pWin )
+ {
+ if( pWin->ImplIsSplitter() )
+ {
+ pSplitter = static_cast<Splitter*>(pWin);
+ if( pSplitter != this && IsHorizontal() != pSplitter->IsHorizontal() )
+ return pSplitter;
+ }
+ pWin = pWin->GetWindow( GetWindowType::Next );
+ }
+ return nullptr;
+}
+
+bool Splitter::ImplSplitterActive()
+{
+ // is splitter in document or at scrollbar handle ?
+
+ bool bActive = true;
+ const StyleSettings& rSettings = GetSettings().GetStyleSettings();
+ tools::Long nA = rSettings.GetScrollBarSize();
+ tools::Long nB = StyleSettings::GetSplitSize();
+
+ Size aSize = GetOutDev()->GetOutputSize();
+ if ( mbHorzSplit )
+ {
+ if( aSize.Width() == nB && aSize.Height() == nA )
+ bActive = false;
+ }
+ else
+ {
+ if( aSize.Width() == nA && aSize.Height() == nB )
+ bActive = false;
+ }
+ return bActive;
+}
+
+void Splitter::MouseButtonDown( const MouseEvent& rMEvt )
+{
+ if ( rMEvt.GetClicks() == 2 )
+ {
+ if ( mnLastSplitPos != mnSplitPos )
+ {
+ StartSplit();
+ Point aPos = rMEvt.GetPosPixel();
+ if ( mbHorzSplit )
+ aPos.setX( mnLastSplitPos );
+ else
+ aPos.setY( mnLastSplitPos );
+ ImplSplitMousePos( aPos );
+ tools::Long nTemp = mnSplitPos;
+ if ( mbHorzSplit )
+ SetSplitPosPixel( aPos.X() );
+ else
+ SetSplitPosPixel( aPos.Y() );
+ mnLastSplitPos = nTemp;
+ Split();
+ EndSplit();
+ }
+ }
+ else
+ StartDrag();
+}
+
+void Splitter::Tracking( const TrackingEvent& rTEvt )
+{
+ if ( rTEvt.IsTrackingEnded() )
+ {
+ if ( !mbDragFull )
+ ImplDrawSplitter();
+
+ if ( !rTEvt.IsTrackingCanceled() )
+ {
+ tools::Long nNewPos;
+ if ( mbHorzSplit )
+ nNewPos = maDragPos.X();
+ else
+ nNewPos = maDragPos.Y();
+ if ( nNewPos != mnStartSplitPos )
+ {
+ SetSplitPosPixel( nNewPos );
+ mnLastSplitPos = 0;
+ Split();
+ }
+ EndSplit();
+ }
+ else if ( mbDragFull )
+ {
+ SetSplitPosPixel( mnStartSplitPos );
+ Split();
+ }
+ mnStartSplitPos = 0;
+ }
+ else
+ {
+ //Point aNewPos = mpRefWin->ScreenToOutputPixel( OutputToScreenPixel( rTEvt.GetMouseEvent().GetPosPixel() ) );
+ Point aNewPos = mpRefWin->NormalizedScreenToOutputPixel( OutputToNormalizedScreenPixel( rTEvt.GetMouseEvent().GetPosPixel() ) );
+ ImplSplitMousePos( aNewPos );
+
+ if ( mbHorzSplit )
+ {
+ if ( aNewPos.X() == maDragPos.X() )
+ return;
+ }
+ else
+ {
+ if ( aNewPos.Y() == maDragPos.Y() )
+ return;
+ }
+
+ if ( mbDragFull )
+ {
+ maDragPos = aNewPos;
+ tools::Long nNewPos;
+ if ( mbHorzSplit )
+ nNewPos = maDragPos.X();
+ else
+ nNewPos = maDragPos.Y();
+ if ( nNewPos != mnSplitPos )
+ {
+ SetSplitPosPixel( nNewPos );
+ mnLastSplitPos = 0;
+ Split();
+ }
+
+ GetParent()->PaintImmediately();
+ }
+ else
+ {
+ ImplDrawSplitter();
+ maDragPos = aNewPos;
+ ImplDrawSplitter();
+ }
+ }
+}
+
+void Splitter::ImplKbdTracking( vcl::KeyCode aKeyCode )
+{
+ sal_uInt16 nCode = aKeyCode.GetCode();
+ if ( nCode == KEY_ESCAPE || nCode == KEY_RETURN )
+ {
+ if( !mbKbdSplitting )
+ return;
+ else
+ mbKbdSplitting = false;
+
+ if ( nCode != KEY_ESCAPE )
+ {
+ tools::Long nNewPos;
+ if ( mbHorzSplit )
+ nNewPos = maDragPos.X();
+ else
+ nNewPos = maDragPos.Y();
+ if ( nNewPos != mnStartSplitPos )
+ {
+ SetSplitPosPixel( nNewPos );
+ mnLastSplitPos = 0;
+ Split();
+ }
+ }
+ else
+ {
+ SetSplitPosPixel( mnStartSplitPos );
+ Split();
+ EndSplit();
+ }
+ mnStartSplitPos = 0;
+ }
+ else
+ {
+ Point aNewPos;
+ Size aSize = mpRefWin->GetOutDev()->GetOutputSize();
+ Point aPos = GetPosPixel();
+ // depending on the position calc allows continuous moves or snaps to row/columns
+ // continuous mode is active when position is at the origin or end of the splitter
+ // otherwise snap mode is active
+ // default here is snap, holding shift sets continuous mode
+ if( mbHorzSplit )
+ aNewPos = Point( ImplSplitterActive() ? aPos.X() : mnSplitPos, aKeyCode.IsShift() ? 0 : aSize.Height()/2);
+ else
+ aNewPos = Point( aKeyCode.IsShift() ? 0 : aSize.Width()/2, ImplSplitterActive() ? aPos.Y() : mnSplitPos );
+
+ Point aOldWindowPos = GetPosPixel();
+
+ int maxiter = 500; // avoid endless loop
+ int delta=0;
+ int delta_step = mbHorzSplit ? aSize.Width()/10 : aSize.Height()/10;
+
+ // use the specified step size if it was set
+ if( mnKeyboardStepSize != SPLITTER_DEFAULTSTEPSIZE )
+ delta_step = mnKeyboardStepSize;
+
+ while( maxiter-- && aOldWindowPos == GetPosPixel() )
+ {
+ // inc/dec position until application performs changes
+ // thus a single key press really moves the splitter
+ if( aKeyCode.IsShift() )
+ delta++;
+ else
+ delta += delta_step;
+
+ switch( nCode )
+ {
+ case KEY_LEFT:
+ aNewPos.AdjustX( -delta );
+ break;
+ case KEY_RIGHT:
+ aNewPos.AdjustX(delta );
+ break;
+ case KEY_UP:
+ aNewPos.AdjustY( -delta );
+ break;
+ case KEY_DOWN:
+ aNewPos.AdjustY(delta );
+ break;
+ default:
+ maxiter = 0; // leave loop
+ break;
+ }
+ ImplSplitMousePos( aNewPos );
+
+ if ( mbHorzSplit )
+ {
+ if ( aNewPos.X() == maDragPos.X() )
+ continue;
+ }
+ else
+ {
+ if ( aNewPos.Y() == maDragPos.Y() )
+ continue;
+ }
+
+ maDragPos = aNewPos;
+ tools::Long nNewPos;
+ if ( mbHorzSplit )
+ nNewPos = maDragPos.X();
+ else
+ nNewPos = maDragPos.Y();
+ if ( nNewPos != mnSplitPos )
+ {
+ SetSplitPosPixel( nNewPos );
+ mnLastSplitPos = 0;
+ Split();
+ }
+ GetParent()->PaintImmediately();
+ }
+ }
+}
+
+void Splitter::StartSplit()
+{
+ maStartSplitHdl.Call( this );
+}
+
+void Splitter::Split()
+{
+ maSplitHdl.Call( this );
+}
+
+void Splitter::EndSplit()
+{
+ maEndSplitHdl.Call( this );
+}
+
+void Splitter::SetDragRectPixel( const tools::Rectangle& rDragRect, vcl::Window* _pRefWin )
+{
+ maDragRect = rDragRect;
+ if ( !_pRefWin )
+ mpRefWin = GetParent();
+ else
+ mpRefWin = _pRefWin;
+}
+
+void Splitter::SetSplitPosPixel( tools::Long nNewPos )
+{
+ mnSplitPos = nNewPos;
+}
+
+void Splitter::StartDrag()
+{
+ if ( IsTracking() )
+ return;
+
+ StartSplit();
+
+ // Tracking starten
+ StartTracking();
+
+ // Start-Position ermitteln
+ maDragPos = mpRefWin->GetPointerPosPixel();
+ ImplSplitMousePos( maDragPos );
+ if ( mbHorzSplit )
+ mnStartSplitPos = maDragPos.X();
+ else
+ mnStartSplitPos = maDragPos.Y();
+
+ mbDragFull = bool(Application::GetSettings().GetStyleSettings().GetDragFullOptions() & DragFullOptions::Split);
+ if ( !mbDragFull )
+ ImplDrawSplitter();
+}
+
+void Splitter::ImplStartKbdSplitting()
+{
+ if( mbKbdSplitting )
+ return;
+
+ mbKbdSplitting = true;
+
+ StartSplit();
+
+ // determine start position
+ // because we have no mouse position we take either the position
+ // of the splitter window or the last split position
+ // the other coordinate is just the center of the reference window
+ Size aSize = mpRefWin->GetOutDev()->GetOutputSize();
+ Point aPos = GetPosPixel();
+ if( mbHorzSplit )
+ maDragPos = Point( ImplSplitterActive() ? aPos.X() : mnSplitPos, aSize.Height()/2 );
+ else
+ maDragPos = Point( aSize.Width()/2, ImplSplitterActive() ? aPos.Y() : mnSplitPos );
+ ImplSplitMousePos( maDragPos );
+ if ( mbHorzSplit )
+ mnStartSplitPos = maDragPos.X();
+ else
+ mnStartSplitPos = maDragPos.Y();
+}
+
+void Splitter::ImplRestoreSplitter()
+{
+ // set splitter in the center of the ref window
+ StartSplit();
+ Size aSize = mpRefWin->GetOutDev()->GetOutputSize();
+ Point aPos( aSize.Width()/2 , aSize.Height()/2);
+ if ( mnLastSplitPos != mnSplitPos && mnLastSplitPos > 5 )
+ {
+ // restore last pos if it was a useful position (>5)
+ if ( mbHorzSplit )
+ aPos.setX( mnLastSplitPos );
+ else
+ aPos.setY( mnLastSplitPos );
+ }
+
+ ImplSplitMousePos( aPos );
+ tools::Long nTemp = mnSplitPos;
+ if ( mbHorzSplit )
+ SetSplitPosPixel( aPos.X() );
+ else
+ SetSplitPosPixel( aPos.Y() );
+ mnLastSplitPos = nTemp;
+ Split();
+ EndSplit();
+}
+
+void Splitter::GetFocus()
+{
+ if( !ImplSplitterActive() )
+ ImplRestoreSplitter();
+
+ Invalidate();
+}
+
+void Splitter::LoseFocus()
+{
+ if( mbKbdSplitting )
+ {
+ vcl::KeyCode aReturnKey( KEY_RETURN );
+ ImplKbdTracking( aReturnKey );
+ mbKbdSplitting = false;
+ }
+ Invalidate();
+}
+
+void Splitter::KeyInput( const KeyEvent& rKEvt )
+{
+ if( mbInKeyEvent )
+ return;
+
+ mbInKeyEvent = true;
+
+ Splitter *pSibling = ImplFindSibling();
+ vcl::KeyCode aKeyCode = rKEvt.GetKeyCode();
+ sal_uInt16 nCode = aKeyCode.GetCode();
+ switch ( nCode )
+ {
+ case KEY_UP:
+ case KEY_DOWN:
+ if( !mbHorzSplit )
+ {
+ ImplStartKbdSplitting();
+ ImplKbdTracking( aKeyCode );
+ }
+ else
+ {
+ if( pSibling )
+ {
+ pSibling->GrabFocus();
+ pSibling->KeyInput( rKEvt );
+ }
+ }
+ break;
+ case KEY_RIGHT:
+ case KEY_LEFT:
+ if( mbHorzSplit )
+ {
+ ImplStartKbdSplitting();
+ ImplKbdTracking( aKeyCode );
+ }
+ else
+ {
+ if( pSibling )
+ {
+ pSibling->GrabFocus();
+ pSibling->KeyInput( rKEvt );
+ }
+ }
+ break;
+
+ case KEY_DELETE:
+ if( ImplSplitterActive() )
+ {
+ if( mbKbdSplitting )
+ {
+ vcl::KeyCode aKey( KEY_ESCAPE );
+ ImplKbdTracking( aKey );
+ }
+
+ StartSplit();
+ Point aPos;
+ if ( mbHorzSplit )
+ aPos.setX( 0 );
+ else
+ aPos.setY( 0 );
+ ImplSplitMousePos( aPos );
+ tools::Long nTemp = mnSplitPos;
+ if ( mbHorzSplit )
+ SetSplitPosPixel( aPos.X() );
+ else
+ SetSplitPosPixel( aPos.Y() );
+ mnLastSplitPos = nTemp;
+ Split();
+ EndSplit();
+
+ // Shift-Del deletes both splitters
+ if( aKeyCode.IsShift() && pSibling )
+ pSibling->KeyInput( rKEvt );
+
+ GrabFocusToDocument();
+ }
+ break;
+
+ case KEY_ESCAPE:
+ if( mbKbdSplitting )
+ ImplKbdTracking( aKeyCode );
+ else
+ GrabFocusToDocument();
+ break;
+
+ case KEY_RETURN:
+ ImplKbdTracking( aKeyCode );
+ GrabFocusToDocument();
+ break;
+ default: // let any key input fix the splitter
+ Window::KeyInput( rKEvt );
+ GrabFocusToDocument();
+ break;
+ }
+ mbInKeyEvent = false;
+}
+
+void Splitter::DataChanged( const DataChangedEvent& rDCEvt )
+{
+ Window::DataChanged( rDCEvt );
+ if( rDCEvt.GetType() != DataChangedEventType::SETTINGS )
+ return;
+
+ const AllSettings* pOldSettings = rDCEvt.GetOldSettings();
+ if(!pOldSettings)
+ return;
+
+ Color oldFaceColor = pOldSettings->GetStyleSettings().GetFaceColor();
+ Color newFaceColor = Application::GetSettings().GetStyleSettings().GetFaceColor();
+ if( oldFaceColor.IsDark() != newFaceColor.IsDark() )
+ {
+ if( newFaceColor.IsDark() )
+ SetBackground( ImplWhiteWall() );
+ else
+ SetBackground( ImplBlackWall() );
+ }
+}
+
+void Splitter::Paint(vcl::RenderContext& rRenderContext, const tools::Rectangle& rPaintRect)
+{
+ rRenderContext.DrawRect(rPaintRect);
+
+ tools::Polygon aPoly(rPaintRect);
+ tools::PolyPolygon aPolyPoly(aPoly);
+ rRenderContext.DrawTransparent(aPolyPoly, 85);
+
+ if (mbKbdSplitting)
+ {
+ LineInfo aInfo( LineStyle::Dash );
+ //aInfo.SetDashLen( 2 );
+ //aInfo.SetDashCount( 1 );
+ aInfo.SetDistance( 1 );
+ aInfo.SetDotLen( 2 );
+ aInfo.SetDotCount( 3 );
+
+ rRenderContext.DrawPolyLine( aPoly, aInfo );
+ }
+ else
+ {
+ rRenderContext.DrawRect(rPaintRect);
+ }
+}
+
+Size Splitter::GetOptimalSize() const
+{
+ return LogicToPixel(Size(3, 3), MapMode(MapUnit::MapAppFont));
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */