413 lines
13 KiB
C++
413 lines
13 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/*************************************************************************
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*
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* Copyright 2000, 2010 Oracle and/or its affiliates.
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*
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* OpenOffice.org - a multi-platform office productivity suite
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*
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* This file is part of OpenOffice.org.
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*
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* OpenOffice.org is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License version 3
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* only, as published by the Free Software Foundation.
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*
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* OpenOffice.org is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Lesser General Public License version 3 for more details
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* (a copy is included in the LICENSE file that accompanied this code).
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*
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* You should have received a copy of the GNU Lesser General Public License
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* version 3 along with OpenOffice.org. If not, see
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* <http://www.openoffice.org/license.html>
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* for a copy of the LGPLv3 License.
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*
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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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#include <limits.h>
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// -----------
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// - Defines -
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// -----------
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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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// -------------------
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// - ImplWheelWindow -
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// -------------------
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ImplWheelWindow::ImplWheelWindow( 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 sal_uInt16 nFlags = ImplGetSVData()->maWinData.mnAutoScrollFlags;
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const sal_Bool bHorz = ( nFlags & AUTOSCROLL_HORZ ) != 0;
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const sal_Bool bVert = ( nFlags & AUTOSCROLL_VERT ) != 0;
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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( FLOATWIN_TITLE_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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// ------------------------------------------------------------------------
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ImplWheelWindow::~ImplWheelWindow()
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{
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ImplStop();
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delete mpTimer;
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}
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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(sal_False);
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}
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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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// ------------------------------------------------------------------------
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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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// ------------------------------------------------------------------------
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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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ImplDrawWheel();
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}
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}
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}
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// ------------------------------------------------------------------------
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void ImplWheelWindow::ImplDrawWheel()
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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 ): nId = 1; break;
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case( WHEELMODE_V ): nId = 2; break;
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case( WHEELMODE_H ): nId = 3; break;
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case( WHEELMODE_SCROLL_VH ):nId = 4; break;
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case( WHEELMODE_SCROLL_V ): nId = 5; break;
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case( WHEELMODE_SCROLL_H ): nId = 6; break;
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default: nId = 0; break;
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}
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if( nId )
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DrawImage( Point(), maImgList.GetImage( nId ) );
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}
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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_uLong 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_uLong) ( 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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long 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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// ------------------------------------------------------------------------
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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 sal_uInt16 nFlags = ImplGetSVData()->maWinData.mnAutoScrollFlags;
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const sal_Bool bHorz = ( nFlags & AUTOSCROLL_HORZ ) != 0;
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const sal_Bool bVert = ( nFlags & AUTOSCROLL_VERT ) != 0;
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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 = POINTER_AUTOSCROLL_NSWE;
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else if( bHorz )
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eStyle = POINTER_AUTOSCROLL_WE;
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else
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eStyle = POINTER_AUTOSCROLL_NS;
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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 = POINTER_AUTOSCROLL_NE;
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else if( fAngle >= 67.5 && fAngle <= 112.5 )
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eStyle = POINTER_AUTOSCROLL_N;
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else if( fAngle >= 112.5 && fAngle <= 157.5 )
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eStyle = POINTER_AUTOSCROLL_NW;
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else if( fAngle >= 157.5 && fAngle <= 202.5 )
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eStyle = POINTER_AUTOSCROLL_W;
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else if( fAngle >= 202.5 && fAngle <= 247.5 )
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eStyle = POINTER_AUTOSCROLL_SW;
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else if( fAngle >= 247.5 && fAngle <= 292.5 )
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eStyle = POINTER_AUTOSCROLL_S;
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else if( fAngle >= 292.5 && fAngle <= 337.5 )
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eStyle = POINTER_AUTOSCROLL_SE;
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else
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eStyle = POINTER_AUTOSCROLL_E;
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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 = POINTER_AUTOSCROLL_E;
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else
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eStyle = POINTER_AUTOSCROLL_W;
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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 = POINTER_AUTOSCROLL_N;
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else
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eStyle = POINTER_AUTOSCROLL_S;
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}
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}
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}
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else
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eStyle = POINTER_ARROW;
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return eStyle;
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}
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// ------------------------------------------------------------------------
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void ImplWheelWindow::Paint( const Rectangle& )
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{
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ImplDrawWheel();
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}
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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 sal_uInt16 nFlags = ImplGetSVData()->maWinData.mnAutoScrollFlags;
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const sal_Bool bHorz = ( nFlags & AUTOSCROLL_HORZ ) != 0;
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const sal_Bool bVert = ( nFlags & AUTOSCROLL_VERT ) != 0;
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const sal_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( POINTER_AUTOSCROLL_N ): mnActDeltaX = +0L, mnActDeltaY = +1L; break;
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case( POINTER_AUTOSCROLL_S ): mnActDeltaX = +0L, mnActDeltaY = -1L; break;
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case( POINTER_AUTOSCROLL_W ): mnActDeltaX = +1L, mnActDeltaY = +0L; break;
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case( POINTER_AUTOSCROLL_E ): mnActDeltaX = -1L, mnActDeltaY = +0L; break;
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case( POINTER_AUTOSCROLL_NW ): mnActDeltaX = +1L, mnActDeltaY = +1L; break;
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case( POINTER_AUTOSCROLL_NE ): mnActDeltaX = -1L, mnActDeltaY = +1L; break;
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case( POINTER_AUTOSCROLL_SW ): mnActDeltaX = +1L, mnActDeltaY = -1L; break;
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case( POINTER_AUTOSCROLL_SE ): 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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// ------------------------------------------------------------------------
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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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// ------------------------------------------------------------------------
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IMPL_LINK( ImplWheelWindow, ImplScrollHdl, Timer*, EMPTYARG )
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{
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if ( mnActDeltaX || mnActDeltaY )
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{
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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, COMMAND_AUTOSCROLL, sal_True, &aScrollData );
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NotifyEvent aNCmdEvt( EVENT_COMMAND, pWindow, &aCEvt );
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if ( !ImplCallPreNotify( aNCmdEvt ) )
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{
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const sal_uLong nTime = 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 0;
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mnRepaintTime = Max( Time::GetSystemTicks() - nTime, (sal_uLong)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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return 0L;
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}
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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