bf110d40ef
Seem UBSAN doesn't like my forced reinterpret_cast to set the Idles
Link in the Timer class. Now there are two possible solution:
1. convert all (DECL|IMPL).*_LINK call sites to use a Timer* or
2. split the inheritance of Idle from Timer again to maintain
different Link<>s and move all common code into a TimerBase.
While the 1st is more correct, the 2nd has a better indicator for
Idles. This implements the first solution.
And while at it, this also converts all call sites of SetTimeoutHdl
and SetIdleHdl to SetInvokeHandler and gets rid of some local Link
objects, which are just passed to the SetInvokeHandler call.
It also introduces ClearInvokeHandler() and replaces the respective
call sites of SetInvokeHandler( Link<Timer *, void>() ).
Change-Id: I40c4167b1493997b7f136add4dad2f4ff5504b69
397 lines
12 KiB
C++
397 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 <vcl/window.hxx>
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#include <vcl/seleng.hxx>
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#include <tools/debug.hxx>
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#include <comphelper/lok.hxx>
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FunctionSet::~FunctionSet()
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{
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}
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inline bool SelectionEngine::ShouldDeselect( bool bModifierKey1 ) const
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{
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return eSelMode != SelectionMode::Multiple || !bModifierKey1;
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}
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// TODO: throw out FunctionSet::SelectAtPoint
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SelectionEngine::SelectionEngine( vcl::Window* pWindow, FunctionSet* pFuncSet ) :
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pWin( pWindow ),
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nUpdateInterval( SELENG_AUTOREPEAT_INTERVAL )
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{
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eSelMode = SelectionMode::Single;
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pFunctionSet = pFuncSet;
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nFlags = SelectionEngineFlags::EXPANDONMOVE;
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nLockedMods = 0;
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aWTimer.SetInvokeHandler( LINK( this, SelectionEngine, ImpWatchDog ) );
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aWTimer.SetTimeout( nUpdateInterval );
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aWTimer.SetDebugName( "vcl::SelectionEngine aWTimer" );
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}
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SelectionEngine::~SelectionEngine()
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{
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aWTimer.Stop();
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}
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IMPL_LINK_NOARG(SelectionEngine, ImpWatchDog, Timer *, void)
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{
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if ( !aArea.IsInside( aLastMove.GetPosPixel() ) )
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SelMouseMove( aLastMove );
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}
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void SelectionEngine::SetSelectionMode( SelectionMode eMode )
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{
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eSelMode = eMode;
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}
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void SelectionEngine::CursorPosChanging( bool bShift, bool bMod1 )
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{
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if ( !pFunctionSet )
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return;
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if ( bShift && eSelMode != SelectionMode::Single )
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{
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if ( IsAddMode() )
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{
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if ( !(nFlags & SelectionEngineFlags::HAS_ANCH) )
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{
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pFunctionSet->CreateAnchor();
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nFlags |= SelectionEngineFlags::HAS_ANCH;
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}
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}
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else
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{
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if ( !(nFlags & SelectionEngineFlags::HAS_ANCH) )
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{
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if( ShouldDeselect( bMod1 ) )
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pFunctionSet->DeselectAll();
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pFunctionSet->CreateAnchor();
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nFlags |= SelectionEngineFlags::HAS_ANCH;
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}
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}
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}
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else
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{
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if ( IsAddMode() )
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{
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if ( nFlags & SelectionEngineFlags::HAS_ANCH )
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{
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// pFunctionSet->CreateCursor();
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pFunctionSet->DestroyAnchor();
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nFlags &= (~SelectionEngineFlags::HAS_ANCH);
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}
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}
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else
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{
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if( ShouldDeselect( bMod1 ) )
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pFunctionSet->DeselectAll();
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else
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pFunctionSet->DestroyAnchor();
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nFlags &= (~SelectionEngineFlags::HAS_ANCH);
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}
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}
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}
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bool SelectionEngine::SelMouseButtonDown( const MouseEvent& rMEvt )
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{
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nFlags &= (~SelectionEngineFlags::CMDEVT);
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if ( !pFunctionSet || !pWin || rMEvt.GetClicks() > 1 || rMEvt.IsRight() )
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return false;
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sal_uInt16 nModifier = rMEvt.GetModifier() | nLockedMods;
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if ( nModifier & KEY_MOD2 )
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return false;
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// in SingleSelection: filter Control-Key,
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// so that a D&D can be also started with a Ctrl-Click
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if ( nModifier == KEY_MOD1 && eSelMode == SelectionMode::Single )
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nModifier = 0;
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Point aPos = rMEvt.GetPosPixel();
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aLastMove = rMEvt;
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if( !rMEvt.IsRight() )
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{
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pWin->CaptureMouse();
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nFlags |= SelectionEngineFlags::IN_SEL;
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}
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else
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{
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nModifier = 0;
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}
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switch ( nModifier )
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{
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case 0: // KEY_NO_KEY
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{
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bool bSelAtPoint = pFunctionSet->IsSelectionAtPoint( aPos );
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nFlags &= (~SelectionEngineFlags::IN_ADD);
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if ( (nFlags & SelectionEngineFlags::DRG_ENAB) && bSelAtPoint )
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{
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nFlags |= SelectionEngineFlags::WAIT_UPEVT;
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nFlags &= ~(SelectionEngineFlags::IN_SEL);
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pWin->ReleaseMouse();
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return true; // wait for STARTDRAG-Command-Event
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}
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if ( eSelMode != SelectionMode::Single )
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{
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if( !IsAddMode() )
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pFunctionSet->DeselectAll();
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else
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pFunctionSet->DestroyAnchor();
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nFlags &= (~SelectionEngineFlags::HAS_ANCH); // bHasAnchor = false;
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}
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pFunctionSet->SetCursorAtPoint( aPos );
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// special case Single-Selection, to enable simple Select+Drag
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if (eSelMode == SelectionMode::Single && (nFlags & SelectionEngineFlags::DRG_ENAB))
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nFlags |= SelectionEngineFlags::WAIT_UPEVT;
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return true;
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}
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case KEY_SHIFT:
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if ( eSelMode == SelectionMode::Single )
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{
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pWin->ReleaseMouse();
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nFlags &= (~SelectionEngineFlags::IN_SEL);
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return false;
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}
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if ( nFlags & SelectionEngineFlags::ADD_ALW )
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nFlags |= SelectionEngineFlags::IN_ADD;
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else
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nFlags &= (~SelectionEngineFlags::IN_ADD);
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if( !(nFlags & SelectionEngineFlags::HAS_ANCH) )
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{
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if ( !(nFlags & SelectionEngineFlags::IN_ADD) )
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pFunctionSet->DeselectAll();
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pFunctionSet->CreateAnchor();
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nFlags |= SelectionEngineFlags::HAS_ANCH;
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}
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pFunctionSet->SetCursorAtPoint( aPos );
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return true;
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case KEY_MOD1:
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// allow Control only for Multi-Select
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if ( eSelMode != SelectionMode::Multiple )
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{
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nFlags &= (~SelectionEngineFlags::IN_SEL);
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pWin->ReleaseMouse();
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return true; // skip Mouse-Click
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}
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if ( nFlags & SelectionEngineFlags::HAS_ANCH )
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{
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// pFunctionSet->CreateCursor();
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pFunctionSet->DestroyAnchor();
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nFlags &= (~SelectionEngineFlags::HAS_ANCH);
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}
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if ( pFunctionSet->IsSelectionAtPoint( aPos ) )
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{
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pFunctionSet->DeselectAtPoint( aPos );
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pFunctionSet->SetCursorAtPoint( aPos, true );
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}
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else
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{
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pFunctionSet->SetCursorAtPoint( aPos );
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}
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return true;
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case KEY_SHIFT + KEY_MOD1:
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if ( eSelMode != SelectionMode::Multiple )
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{
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pWin->ReleaseMouse();
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nFlags &= (~SelectionEngineFlags::IN_SEL);
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return false;
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}
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nFlags |= SelectionEngineFlags::IN_ADD; //bIsInAddMode = true;
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if ( !(nFlags & SelectionEngineFlags::HAS_ANCH) )
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{
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pFunctionSet->CreateAnchor();
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nFlags |= SelectionEngineFlags::HAS_ANCH;
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}
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pFunctionSet->SetCursorAtPoint( aPos );
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return true;
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}
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return false;
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}
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bool SelectionEngine::SelMouseButtonUp( const MouseEvent& rMEvt )
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{
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aWTimer.Stop();
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if( !pFunctionSet || !pWin )
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{
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const SelectionEngineFlags nMask = (SelectionEngineFlags::CMDEVT | SelectionEngineFlags::WAIT_UPEVT | SelectionEngineFlags::IN_SEL);
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nFlags &= ~nMask;
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return false;
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}
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if( !rMEvt.IsRight() )
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{
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ReleaseMouse();
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}
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if( (nFlags & SelectionEngineFlags::WAIT_UPEVT) && !(nFlags & SelectionEngineFlags::CMDEVT) &&
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eSelMode != SelectionMode::Single)
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{
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// MouseButtonDown in Sel but no CommandEvent yet
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// ==> deselektieren
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sal_uInt16 nModifier = aLastMove.GetModifier() | nLockedMods;
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if( nModifier == KEY_MOD1 || IsAlwaysAdding() )
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{
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if( !(nModifier & KEY_SHIFT) )
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{
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pFunctionSet->DestroyAnchor();
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nFlags &= (~SelectionEngineFlags::HAS_ANCH); // uncheck anchor
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}
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pFunctionSet->DeselectAtPoint( aLastMove.GetPosPixel() );
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nFlags &= (~SelectionEngineFlags::HAS_ANCH); // uncheck anchor
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pFunctionSet->SetCursorAtPoint( aLastMove.GetPosPixel(), true );
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}
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else
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{
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pFunctionSet->DeselectAll();
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nFlags &= (~SelectionEngineFlags::HAS_ANCH); // uncheck anchor
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pFunctionSet->SetCursorAtPoint( aLastMove.GetPosPixel() );
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}
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}
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const SelectionEngineFlags nMask = (SelectionEngineFlags::CMDEVT | SelectionEngineFlags::WAIT_UPEVT | SelectionEngineFlags::IN_SEL);
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nFlags &= ~nMask;
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return true;
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}
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void SelectionEngine::ReleaseMouse()
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{
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if (!pWin || !pWin->IsMouseCaptured())
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return;
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pWin->ReleaseMouse();
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}
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bool SelectionEngine::SelMouseMove( const MouseEvent& rMEvt )
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{
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if ( !pFunctionSet || !(nFlags & SelectionEngineFlags::IN_SEL) ||
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(nFlags & (SelectionEngineFlags::CMDEVT | SelectionEngineFlags::WAIT_UPEVT)) )
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return false;
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if( !(nFlags & SelectionEngineFlags::EXPANDONMOVE) )
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return false; // wait for DragEvent!
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aLastMove = rMEvt;
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// if the mouse is outside the area, the frequency of
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// SetCursorAtPoint() is only set by the Timer
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if( aWTimer.IsActive() && !aArea.IsInside( rMEvt.GetPosPixel() ))
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return true;
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aWTimer.SetTimeout( nUpdateInterval );
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if (!comphelper::LibreOfficeKit::isActive())
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// Generating fake mouse moves does not work with LOK.
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aWTimer.Start();
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if ( eSelMode != SelectionMode::Single )
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{
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if ( !(nFlags & SelectionEngineFlags::HAS_ANCH) )
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{
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pFunctionSet->CreateAnchor();
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nFlags |= SelectionEngineFlags::HAS_ANCH;
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}
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}
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pFunctionSet->SetCursorAtPoint( rMEvt.GetPosPixel() );
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return true;
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}
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void SelectionEngine::SetWindow( vcl::Window* pNewWin )
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{
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if( pNewWin != pWin )
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{
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if ( pWin && (nFlags & SelectionEngineFlags::IN_SEL) )
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pWin->ReleaseMouse();
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pWin = pNewWin;
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if ( pWin && ( nFlags & SelectionEngineFlags::IN_SEL ) )
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pWin->CaptureMouse();
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}
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}
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void SelectionEngine::Reset()
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{
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aWTimer.Stop();
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if ( nFlags & SelectionEngineFlags::IN_SEL )
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pWin->ReleaseMouse();
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SelectionEngineFlags nMask = (SelectionEngineFlags::HAS_ANCH | SelectionEngineFlags::IN_SEL);
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nFlags &= ~nMask;
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nLockedMods = 0;
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}
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void SelectionEngine::Command( const CommandEvent& rCEvt )
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{
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// Timer aWTimer is active during enlarging a selection
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if ( !pFunctionSet || !pWin || aWTimer.IsActive() )
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return;
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aWTimer.Stop();
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nFlags |= SelectionEngineFlags::CMDEVT;
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if ( rCEvt.GetCommand() == CommandEventId::StartDrag )
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{
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if ( nFlags & SelectionEngineFlags::DRG_ENAB )
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{
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SAL_WARN_IF( !rCEvt.IsMouseEvent(), "vcl", "STARTDRAG: Not a MouseEvent" );
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if ( pFunctionSet->IsSelectionAtPoint( rCEvt.GetMousePosPixel() ) )
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{
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aLastMove = MouseEvent( rCEvt.GetMousePosPixel(),
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aLastMove.GetClicks(), aLastMove.GetMode(),
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aLastMove.GetButtons(), aLastMove.GetModifier() );
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pFunctionSet->BeginDrag();
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const SelectionEngineFlags nMask = (SelectionEngineFlags::CMDEVT|SelectionEngineFlags::WAIT_UPEVT|SelectionEngineFlags::IN_SEL);
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nFlags &= ~nMask;
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}
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else
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nFlags &= ~SelectionEngineFlags::CMDEVT;
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}
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else
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nFlags &= ~SelectionEngineFlags::CMDEVT;
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}
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}
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void SelectionEngine::SetUpdateInterval( sal_uLong nInterval )
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{
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if (nInterval < SELENG_AUTOREPEAT_INTERVAL_MIN)
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// Set a lower threshold. On Windows, setting this value too low
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// would cause selection to get updated indefinitely.
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nInterval = SELENG_AUTOREPEAT_INTERVAL_MIN;
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if (nUpdateInterval == nInterval)
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// no update needed.
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return;
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if (aWTimer.IsActive())
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{
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// reset the timer right away on interval change.
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aWTimer.Stop();
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aWTimer.SetTimeout(nInterval);
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aWTimer.Start();
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}
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else
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aWTimer.SetTimeout(nInterval);
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nUpdateInterval = nInterval;
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}
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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