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Diffstat (limited to 'vcl/source/window/scrwnd.cxx')
-rw-r--r-- | vcl/source/window/scrwnd.cxx | 420 |
1 files changed, 420 insertions, 0 deletions
diff --git a/vcl/source/window/scrwnd.cxx b/vcl/source/window/scrwnd.cxx new file mode 100644 index 000000000000..735add842518 --- /dev/null +++ b/vcl/source/window/scrwnd.cxx @@ -0,0 +1,420 @@ +/************************************************************************* + * + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. + * + * Copyright 2000, 2010 Oracle and/or its affiliates. + * + * OpenOffice.org - a multi-platform office productivity suite + * + * This file is part of OpenOffice.org. + * + * OpenOffice.org is free software: you can redistribute it and/or modify + * it under the terms of the GNU Lesser General Public License version 3 + * only, as published by the Free Software Foundation. + * + * OpenOffice.org is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU Lesser General Public License version 3 for more details + * (a copy is included in the LICENSE file that accompanied this code). + * + * You should have received a copy of the GNU Lesser General Public License + * version 3 along with OpenOffice.org. If not, see + * <http://www.openoffice.org/license.html> + * for a copy of the LGPLv3 License. + * + ************************************************************************/ + +// MARKER(update_precomp.py): autogen include statement, do not remove +#include "precompiled_vcl.hxx" + +// #include <math.h> +#include <limits.h> +#include <tools/time.hxx> +#include <tools/debug.hxx> + +#ifndef _SV_SVIDS_HRC +#include <vcl/svids.hrc> +#endif +#include <vcl/svdata.hxx> +#ifndef _VCL_TIMER_HXX +#include <vcl/timer.hxx> +#endif +#ifndef _VCL_EVENT_HXX +#include <vcl/event.hxx> +#endif +#ifndef _VCL_SCRWND_HXX +#include <scrwnd.hxx> +#endif + +#include <math.h> +#include <limits.h> + +// ----------- +// - Defines - +// ----------- + +#define WHEEL_WIDTH 25 +#define WHEEL_RADIUS ((WHEEL_WIDTH) >> 1 ) +#define MAX_TIME 300 +#define MIN_TIME 20 +#define DEF_TIMEOUT 50 + +// ------------------- +// - ImplWheelWindow - +// ------------------- + +ImplWheelWindow::ImplWheelWindow( Window* pParent ) : + FloatingWindow ( pParent, 0 ), + mnRepaintTime ( 1UL ), + mnTimeout ( DEF_TIMEOUT ), + mnWheelMode ( WHEELMODE_NONE ), + mnActDist ( 0UL ), + mnActDeltaX ( 0L ), + mnActDeltaY ( 0L ) +{ + // we need a parent + DBG_ASSERT( pParent, "ImplWheelWindow::ImplWheelWindow(): Parent not set!" ); + + const Size aSize( pParent->GetOutputSizePixel() ); + const USHORT nFlags = ImplGetSVData()->maWinData.mnAutoScrollFlags; + const BOOL bHorz = ( nFlags & AUTOSCROLL_HORZ ) != 0; + const BOOL bVert = ( nFlags & AUTOSCROLL_VERT ) != 0; + + // calculate maximum speed distance + mnMaxWidth = (ULONG) ( 0.4 * hypot( (double) aSize.Width(), aSize.Height() ) ); + + // create wheel window + SetTitleType( FLOATWIN_TITLE_NONE ); + ImplCreateImageList(); + ResMgr* pResMgr = ImplGetResMgr(); + Bitmap aBmp; + if( pResMgr ) + aBmp = Bitmap( ResId( SV_RESID_BITMAP_SCROLLMSK, *pResMgr ) ); + ImplSetRegion( aBmp ); + + // set wheel mode + if( bHorz && bVert ) + ImplSetWheelMode( WHEELMODE_VH ); + else if( bHorz ) + ImplSetWheelMode( WHEELMODE_H ); + else + ImplSetWheelMode( WHEELMODE_V ); + + // init timer + mpTimer = new Timer; + mpTimer->SetTimeoutHdl( LINK( this, ImplWheelWindow, ImplScrollHdl ) ); + mpTimer->SetTimeout( mnTimeout ); + mpTimer->Start(); + + CaptureMouse(); +} + +// ------------------------------------------------------------------------ + +ImplWheelWindow::~ImplWheelWindow() +{ + ImplStop(); + delete mpTimer; +} + +// ------------------------------------------------------------------------ + +void ImplWheelWindow::ImplStop() +{ + ReleaseMouse(); + mpTimer->Stop(); + Show(FALSE); +} + +// ------------------------------------------------------------------------ + +void ImplWheelWindow::ImplSetRegion( const Bitmap& rRegionBmp ) +{ + Point aPos( GetPointerPosPixel() ); + const Size aSize( rRegionBmp.GetSizePixel() ); + Point aPoint; + const Rectangle aRect( aPoint, aSize ); + + maCenter = maLastMousePos = aPos; + aPos.X() -= aSize.Width() >> 1; + aPos.Y() -= aSize.Height() >> 1; + + SetPosSizePixel( aPos, aSize ); + SetWindowRegionPixel( rRegionBmp.CreateRegion( COL_BLACK, aRect ) ); +} + +// ------------------------------------------------------------------------ + +void ImplWheelWindow::ImplCreateImageList() +{ + ResMgr* pResMgr = ImplGetResMgr(); + if( pResMgr ) + maImgList.InsertFromHorizontalBitmap + ( ResId( SV_RESID_BITMAP_SCROLLBMP, *pResMgr ), 6, NULL ); +} + +// ------------------------------------------------------------------------ + +void ImplWheelWindow::ImplSetWheelMode( ULONG nWheelMode ) +{ + if( nWheelMode != mnWheelMode ) + { + mnWheelMode = nWheelMode; + + if( WHEELMODE_NONE == mnWheelMode ) + { + if( IsVisible() ) + Hide(); + } + else + { + if( !IsVisible() ) + Show(); + + ImplDrawWheel(); + } + } +} + +// ------------------------------------------------------------------------ + +void ImplWheelWindow::ImplDrawWheel() +{ + USHORT nId; + + switch( mnWheelMode ) + { + case( WHEELMODE_VH ): nId = 1; break; + case( WHEELMODE_V ): nId = 2; break; + case( WHEELMODE_H ): nId = 3; break; + case( WHEELMODE_SCROLL_VH ):nId = 4; break; + case( WHEELMODE_SCROLL_V ): nId = 5; break; + case( WHEELMODE_SCROLL_H ): nId = 6; break; + default: nId = 0; break; + } + + if( nId ) + DrawImage( Point(), maImgList.GetImage( nId ) ); +} + +// ------------------------------------------------------------------------ + +void ImplWheelWindow::ImplRecalcScrollValues() +{ + if( mnActDist < WHEEL_RADIUS ) + { + mnActDeltaX = mnActDeltaY = 0L; + mnTimeout = DEF_TIMEOUT; + } + else + { + ULONG nCurTime; + + // calc current time + if( mnMaxWidth ) + { + const double fExp = ( (double) mnActDist / mnMaxWidth ) * log10( (double) MAX_TIME / MIN_TIME ); + nCurTime = (ULONG) ( MAX_TIME / pow( 10., fExp ) ); + } + else + nCurTime = MAX_TIME; + + if( !nCurTime ) + nCurTime = 1UL; + + if( mnRepaintTime <= nCurTime ) + mnTimeout = nCurTime - mnRepaintTime; + else + { + long nMult = mnRepaintTime / nCurTime; + + if( !( mnRepaintTime % nCurTime ) ) + mnTimeout = 0UL; + else + mnTimeout = ++nMult * nCurTime - mnRepaintTime; + + double fValX = (double) mnActDeltaX * nMult; + double fValY = (double) mnActDeltaY * nMult; + + if( fValX > LONG_MAX ) + mnActDeltaX = LONG_MAX; + else if( fValX < LONG_MIN ) + mnActDeltaX = LONG_MIN; + else + mnActDeltaX = (long) fValX; + + if( fValY > LONG_MAX ) + mnActDeltaY = LONG_MAX; + else if( fValY < LONG_MIN ) + mnActDeltaY = LONG_MIN; + else + mnActDeltaY = (long) fValY; + } + } +} + +// ------------------------------------------------------------------------ + +PointerStyle ImplWheelWindow::ImplGetMousePointer( long nDistX, long nDistY ) +{ + PointerStyle eStyle; + const USHORT nFlags = ImplGetSVData()->maWinData.mnAutoScrollFlags; + const BOOL bHorz = ( nFlags & AUTOSCROLL_HORZ ) != 0; + const BOOL bVert = ( nFlags & AUTOSCROLL_VERT ) != 0; + + if( bHorz || bVert ) + { + if( mnActDist < WHEEL_RADIUS ) + { + if( bHorz && bVert ) + eStyle = POINTER_AUTOSCROLL_NSWE; + else if( bHorz ) + eStyle = POINTER_AUTOSCROLL_WE; + else + eStyle = POINTER_AUTOSCROLL_NS; + } + else + { + double fAngle = atan2( (double) -nDistY, nDistX ) / F_PI180; + + if( fAngle < 0.0 ) + fAngle += 360.; + + if( bHorz && bVert ) + { + if( fAngle >= 22.5 && fAngle <= 67.5 ) + eStyle = POINTER_AUTOSCROLL_NE; + else if( fAngle >= 67.5 && fAngle <= 112.5 ) + eStyle = POINTER_AUTOSCROLL_N; + else if( fAngle >= 112.5 && fAngle <= 157.5 ) + eStyle = POINTER_AUTOSCROLL_NW; + else if( fAngle >= 157.5 && fAngle <= 202.5 ) + eStyle = POINTER_AUTOSCROLL_W; + else if( fAngle >= 202.5 && fAngle <= 247.5 ) + eStyle = POINTER_AUTOSCROLL_SW; + else if( fAngle >= 247.5 && fAngle <= 292.5 ) + eStyle = POINTER_AUTOSCROLL_S; + else if( fAngle >= 292.5 && fAngle <= 337.5 ) + eStyle = POINTER_AUTOSCROLL_SE; + else + eStyle = POINTER_AUTOSCROLL_E; + } + else if( bHorz ) + { + if( fAngle >= 270. || fAngle <= 90. ) + eStyle = POINTER_AUTOSCROLL_E; + else + eStyle = POINTER_AUTOSCROLL_W; + } + else + { + if( fAngle >= 0. && fAngle <= 180. ) + eStyle = POINTER_AUTOSCROLL_N; + else + eStyle = POINTER_AUTOSCROLL_S; + } + } + } + else + eStyle = POINTER_ARROW; + + return eStyle; +} + +// ------------------------------------------------------------------------ + +void ImplWheelWindow::Paint( const Rectangle& ) +{ + ImplDrawWheel(); +} + +// ------------------------------------------------------------------------ + +void ImplWheelWindow::MouseMove( const MouseEvent& rMEvt ) +{ + FloatingWindow::MouseMove( rMEvt ); + + const Point aMousePos( OutputToScreenPixel( rMEvt.GetPosPixel() ) ); + const long nDistX = aMousePos.X() - maCenter.X(); + const long nDistY = aMousePos.Y() - maCenter.Y(); + + mnActDist = (ULONG) hypot( (double) nDistX, nDistY ); + + const PointerStyle eActStyle = ImplGetMousePointer( nDistX, nDistY ); + const USHORT nFlags = ImplGetSVData()->maWinData.mnAutoScrollFlags; + const BOOL bHorz = ( nFlags & AUTOSCROLL_HORZ ) != 0; + const BOOL bVert = ( nFlags & AUTOSCROLL_VERT ) != 0; + const BOOL bOuter = mnActDist > WHEEL_RADIUS; + + if( bOuter && ( maLastMousePos != aMousePos ) ) + { + switch( eActStyle ) + { + case( POINTER_AUTOSCROLL_N ): mnActDeltaX = +0L, mnActDeltaY = +1L; break; + case( POINTER_AUTOSCROLL_S ): mnActDeltaX = +0L, mnActDeltaY = -1L; break; + case( POINTER_AUTOSCROLL_W ): mnActDeltaX = +1L, mnActDeltaY = +0L; break; + case( POINTER_AUTOSCROLL_E ): mnActDeltaX = -1L, mnActDeltaY = +0L; break; + case( POINTER_AUTOSCROLL_NW ): mnActDeltaX = +1L, mnActDeltaY = +1L; break; + case( POINTER_AUTOSCROLL_NE ): mnActDeltaX = -1L, mnActDeltaY = +1L; break; + case( POINTER_AUTOSCROLL_SW ): mnActDeltaX = +1L, mnActDeltaY = -1L; break; + case( POINTER_AUTOSCROLL_SE ): mnActDeltaX = -1L, mnActDeltaY = -1L; break; + + default: + break; + } + } + + ImplRecalcScrollValues(); + maLastMousePos = aMousePos; + SetPointer( eActStyle ); + + if( bHorz && bVert ) + ImplSetWheelMode( bOuter ? WHEELMODE_SCROLL_VH : WHEELMODE_VH ); + else if( bHorz ) + ImplSetWheelMode( bOuter ? WHEELMODE_SCROLL_H : WHEELMODE_H ); + else + ImplSetWheelMode( bOuter ? WHEELMODE_SCROLL_V : WHEELMODE_V ); +} + +// ------------------------------------------------------------------------ + +void ImplWheelWindow::MouseButtonUp( const MouseEvent& rMEvt ) +{ + if( mnActDist > WHEEL_RADIUS ) + GetParent()->EndAutoScroll(); + else + FloatingWindow::MouseButtonUp( rMEvt ); +} + +// ------------------------------------------------------------------------ + +IMPL_LINK( ImplWheelWindow, ImplScrollHdl, Timer*, EMPTYARG ) +{ + if ( mnActDeltaX || mnActDeltaY ) + { + Window* pWindow = GetParent(); + const Point aMousePos( pWindow->OutputToScreenPixel( pWindow->GetPointerPosPixel() ) ); + Point aCmdMousePos( pWindow->ImplFrameToOutput( aMousePos ) ); + CommandScrollData aScrollData( mnActDeltaX, mnActDeltaY ); + CommandEvent aCEvt( aCmdMousePos, COMMAND_AUTOSCROLL, TRUE, &aScrollData ); + NotifyEvent aNCmdEvt( EVENT_COMMAND, pWindow, &aCEvt ); + + if ( !ImplCallPreNotify( aNCmdEvt ) ) + { + const ULONG nTime = Time::GetSystemTicks(); + ImplDelData aDel( this ); + pWindow->Command( aCEvt ); + if( aDel.IsDead() ) + return 0; + mnRepaintTime = Max( Time::GetSystemTicks() - nTime, 1UL ); + ImplRecalcScrollValues(); + } + } + + if ( mnTimeout != mpTimer->GetTimeout() ) + mpTimer->SetTimeout( mnTimeout ); + mpTimer->Start(); + + return 0L; +} |