391 lines
12 KiB
C++
391 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 <limits.h>
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#include <tools/time.hxx>
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#include <tools/debug.hxx>
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#include <svids.hrc>
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#include <svdata.hxx>
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#include <scrwnd.hxx>
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#include <vcl/timer.hxx>
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#include <vcl/event.hxx>
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#include <math.h>
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#define WHEEL_WIDTH 25
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#define WHEEL_RADIUS ((WHEEL_WIDTH) >> 1 )
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#define MAX_TIME 300
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#define MIN_TIME 20
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#define DEF_TIMEOUT 50
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ImplWheelWindow::ImplWheelWindow( vcl::Window* pParent ) :
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FloatingWindow ( pParent, 0 ),
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mnRepaintTime ( 1UL ),
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mnTimeout ( DEF_TIMEOUT ),
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mnWheelMode ( WHEELMODE_NONE ),
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mnActDist ( 0UL ),
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mnActDeltaX ( 0L ),
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mnActDeltaY ( 0L )
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{
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// we need a parent
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DBG_ASSERT( pParent, "ImplWheelWindow::ImplWheelWindow(): Parent not set!" );
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const Size aSize( pParent->GetOutputSizePixel() );
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const StartAutoScrollFlags nFlags = ImplGetSVData()->maWinData.mnAutoScrollFlags;
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const bool bHorz( nFlags & StartAutoScrollFlags::Horz );
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const bool bVert( nFlags & StartAutoScrollFlags::Vert );
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// calculate maximum speed distance
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mnMaxWidth = (sal_uLong) ( 0.4 * hypot( (double) aSize.Width(), aSize.Height() ) );
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// create wheel window
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SetTitleType( FloatWinTitleType::NONE );
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ImplCreateImageList();
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ResMgr* pResMgr = ImplGetResMgr();
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Bitmap aBmp;
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if( pResMgr )
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aBmp = Bitmap( ResId( SV_RESID_BITMAP_SCROLLMSK, *pResMgr ) );
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ImplSetRegion( aBmp );
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// set wheel mode
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if( bHorz && bVert )
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ImplSetWheelMode( WHEELMODE_VH );
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else if( bHorz )
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ImplSetWheelMode( WHEELMODE_H );
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else
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ImplSetWheelMode( WHEELMODE_V );
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// init timer
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mpTimer = new Timer;
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mpTimer->SetTimeoutHdl( LINK( this, ImplWheelWindow, ImplScrollHdl ) );
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mpTimer->SetTimeout( mnTimeout );
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mpTimer->Start();
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CaptureMouse();
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}
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ImplWheelWindow::~ImplWheelWindow()
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{
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disposeOnce();
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}
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void ImplWheelWindow::dispose()
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{
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ImplStop();
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delete mpTimer;
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mpTimer = NULL;
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FloatingWindow::dispose();
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}
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void ImplWheelWindow::ImplStop()
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{
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ReleaseMouse();
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mpTimer->Stop();
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Show(false);
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}
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void ImplWheelWindow::ImplSetRegion( const Bitmap& rRegionBmp )
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{
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Point aPos( GetPointerPosPixel() );
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const Size aSize( rRegionBmp.GetSizePixel() );
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Point aPoint;
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const Rectangle aRect( aPoint, aSize );
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maCenter = maLastMousePos = aPos;
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aPos.X() -= aSize.Width() >> 1;
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aPos.Y() -= aSize.Height() >> 1;
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SetPosSizePixel( aPos, aSize );
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SetWindowRegionPixel( rRegionBmp.CreateRegion( COL_BLACK, aRect ) );
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}
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void ImplWheelWindow::ImplCreateImageList()
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{
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ResMgr* pResMgr = ImplGetResMgr();
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if( pResMgr )
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maImgList.InsertFromHorizontalBitmap
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( ResId( SV_RESID_BITMAP_SCROLLBMP, *pResMgr ), 6, NULL );
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}
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void ImplWheelWindow::ImplSetWheelMode( sal_uLong nWheelMode )
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{
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if( nWheelMode != mnWheelMode )
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{
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mnWheelMode = nWheelMode;
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if( WHEELMODE_NONE == mnWheelMode )
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{
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if( IsVisible() )
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Hide();
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}
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else
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{
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if( !IsVisible() )
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Show();
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Invalidate();
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}
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}
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}
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void ImplWheelWindow::ImplDrawWheel(vcl::RenderContext& rRenderContext)
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{
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sal_uInt16 nId;
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switch (mnWheelMode)
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{
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case WHEELMODE_VH:
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nId = 1;
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break;
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case WHEELMODE_V:
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nId = 2;
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break;
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case WHEELMODE_H:
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nId = 3;
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break;
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case WHEELMODE_SCROLL_VH:
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nId = 4;
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break;
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case WHEELMODE_SCROLL_V:
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nId = 5;
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break;
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case WHEELMODE_SCROLL_H:
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nId = 6;
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break;
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default:
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nId = 0;
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break;
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}
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if (nId)
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rRenderContext.DrawImage(Point(), maImgList.GetImage(nId));
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}
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void ImplWheelWindow::ImplRecalcScrollValues()
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{
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if( mnActDist < WHEEL_RADIUS )
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{
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mnActDeltaX = mnActDeltaY = 0L;
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mnTimeout = DEF_TIMEOUT;
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}
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else
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{
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sal_uInt64 nCurTime;
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// calc current time
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if( mnMaxWidth )
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{
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const double fExp = ( (double) mnActDist / mnMaxWidth ) * log10( (double) MAX_TIME / MIN_TIME );
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nCurTime = (sal_uInt64) ( MAX_TIME / pow( 10., fExp ) );
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}
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else
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nCurTime = MAX_TIME;
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if( !nCurTime )
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nCurTime = 1UL;
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if( mnRepaintTime <= nCurTime )
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mnTimeout = nCurTime - mnRepaintTime;
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else
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{
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sal_uInt64 nMult = mnRepaintTime / nCurTime;
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if( !( mnRepaintTime % nCurTime ) )
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mnTimeout = 0UL;
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else
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mnTimeout = ++nMult * nCurTime - mnRepaintTime;
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double fValX = (double) mnActDeltaX * nMult;
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double fValY = (double) mnActDeltaY * nMult;
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if( fValX > LONG_MAX )
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mnActDeltaX = LONG_MAX;
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else if( fValX < LONG_MIN )
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mnActDeltaX = LONG_MIN;
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else
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mnActDeltaX = (long) fValX;
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if( fValY > LONG_MAX )
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mnActDeltaY = LONG_MAX;
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else if( fValY < LONG_MIN )
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mnActDeltaY = LONG_MIN;
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else
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mnActDeltaY = (long) fValY;
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}
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}
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}
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PointerStyle ImplWheelWindow::ImplGetMousePointer( long nDistX, long nDistY )
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{
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PointerStyle eStyle;
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const StartAutoScrollFlags nFlags = ImplGetSVData()->maWinData.mnAutoScrollFlags;
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const bool bHorz( nFlags & StartAutoScrollFlags::Horz );
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const bool bVert( nFlags & StartAutoScrollFlags::Vert );
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if( bHorz || bVert )
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{
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if( mnActDist < WHEEL_RADIUS )
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{
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if( bHorz && bVert )
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eStyle = PointerStyle::AutoScrollNSWE;
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else if( bHorz )
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eStyle = PointerStyle::AutoScrollWE;
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else
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eStyle = PointerStyle::AutoScrollNS;
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}
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else
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{
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double fAngle = atan2( (double) -nDistY, nDistX ) / F_PI180;
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if( fAngle < 0.0 )
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fAngle += 360.;
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if( bHorz && bVert )
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{
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if( fAngle >= 22.5 && fAngle <= 67.5 )
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eStyle = PointerStyle::AutoScrollNE;
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else if( fAngle >= 67.5 && fAngle <= 112.5 )
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eStyle = PointerStyle::AutoScrollN;
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else if( fAngle >= 112.5 && fAngle <= 157.5 )
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eStyle = PointerStyle::AutoScrollNW;
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else if( fAngle >= 157.5 && fAngle <= 202.5 )
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eStyle = PointerStyle::AutoScrollW;
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else if( fAngle >= 202.5 && fAngle <= 247.5 )
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eStyle = PointerStyle::AutoScrollSW;
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else if( fAngle >= 247.5 && fAngle <= 292.5 )
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eStyle = PointerStyle::AutoScrollS;
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else if( fAngle >= 292.5 && fAngle <= 337.5 )
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eStyle = PointerStyle::AutoScrollSE;
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else
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eStyle = PointerStyle::AutoScrollE;
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}
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else if( bHorz )
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{
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if( fAngle >= 270. || fAngle <= 90. )
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eStyle = PointerStyle::AutoScrollE;
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else
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eStyle = PointerStyle::AutoScrollW;
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}
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else
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{
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if( fAngle >= 0. && fAngle <= 180. )
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eStyle = PointerStyle::AutoScrollN;
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else
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eStyle = PointerStyle::AutoScrollS;
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}
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}
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}
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else
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eStyle = PointerStyle::Arrow;
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return eStyle;
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}
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void ImplWheelWindow::Paint(vcl::RenderContext& rRenderContext, const Rectangle&)
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{
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ImplDrawWheel(rRenderContext);
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}
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void ImplWheelWindow::MouseMove( const MouseEvent& rMEvt )
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{
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FloatingWindow::MouseMove( rMEvt );
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const Point aMousePos( OutputToScreenPixel( rMEvt.GetPosPixel() ) );
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const long nDistX = aMousePos.X() - maCenter.X();
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const long nDistY = aMousePos.Y() - maCenter.Y();
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mnActDist = (sal_uLong) hypot( (double) nDistX, nDistY );
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const PointerStyle eActStyle = ImplGetMousePointer( nDistX, nDistY );
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const StartAutoScrollFlags nFlags = ImplGetSVData()->maWinData.mnAutoScrollFlags;
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const bool bHorz( nFlags & StartAutoScrollFlags::Horz );
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const bool bVert( nFlags & StartAutoScrollFlags::Vert );
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const bool bOuter = mnActDist > WHEEL_RADIUS;
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if( bOuter && ( maLastMousePos != aMousePos ) )
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{
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switch( eActStyle )
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{
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case( PointerStyle::AutoScrollN ): mnActDeltaX = +0L, mnActDeltaY = +1L; break;
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case( PointerStyle::AutoScrollS ): mnActDeltaX = +0L, mnActDeltaY = -1L; break;
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case( PointerStyle::AutoScrollW ): mnActDeltaX = +1L, mnActDeltaY = +0L; break;
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case( PointerStyle::AutoScrollE ): mnActDeltaX = -1L, mnActDeltaY = +0L; break;
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case( PointerStyle::AutoScrollNW ): mnActDeltaX = +1L, mnActDeltaY = +1L; break;
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case( PointerStyle::AutoScrollNE ): mnActDeltaX = -1L, mnActDeltaY = +1L; break;
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case( PointerStyle::AutoScrollSW ): mnActDeltaX = +1L, mnActDeltaY = -1L; break;
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case( PointerStyle::AutoScrollSE ): mnActDeltaX = -1L, mnActDeltaY = -1L; break;
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default:
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break;
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}
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}
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ImplRecalcScrollValues();
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maLastMousePos = aMousePos;
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SetPointer( eActStyle );
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if( bHorz && bVert )
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ImplSetWheelMode( bOuter ? WHEELMODE_SCROLL_VH : WHEELMODE_VH );
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else if( bHorz )
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ImplSetWheelMode( bOuter ? WHEELMODE_SCROLL_H : WHEELMODE_H );
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else
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ImplSetWheelMode( bOuter ? WHEELMODE_SCROLL_V : WHEELMODE_V );
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}
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void ImplWheelWindow::MouseButtonUp( const MouseEvent& rMEvt )
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{
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if( mnActDist > WHEEL_RADIUS )
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GetParent()->EndAutoScroll();
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else
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FloatingWindow::MouseButtonUp( rMEvt );
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}
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IMPL_LINK_NOARG_TYPED(ImplWheelWindow, ImplScrollHdl, Timer *, void)
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{
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if ( mnActDeltaX || mnActDeltaY )
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{
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vcl::Window* pWindow = GetParent();
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const Point aMousePos( pWindow->OutputToScreenPixel( pWindow->GetPointerPosPixel() ) );
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Point aCmdMousePos( pWindow->ImplFrameToOutput( aMousePos ) );
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CommandScrollData aScrollData( mnActDeltaX, mnActDeltaY );
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CommandEvent aCEvt( aCmdMousePos, CommandEventId::AutoScroll, true, &aScrollData );
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NotifyEvent aNCmdEvt( MouseNotifyEvent::COMMAND, pWindow, &aCEvt );
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if ( !ImplCallPreNotify( aNCmdEvt ) )
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{
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const sal_uInt64 nTime = tools::Time::GetSystemTicks();
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ImplDelData aDel( this );
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pWindow->Command( aCEvt );
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if( aDel.IsDead() )
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return;
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mnRepaintTime = std::max( tools::Time::GetSystemTicks() - nTime, (sal_uInt64)1 );
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ImplRecalcScrollValues();
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}
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}
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if ( mnTimeout != mpTimer->GetTimeout() )
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mpTimer->SetTimeout( mnTimeout );
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mpTimer->Start();
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}
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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