/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ /* * This file is part of the LibreOffice project. * * This Source Code Form is subject to the terms of the Mozilla Public * License, v. 2.0. If a copy of the MPL was not distributed with this * file, You can obtain one at http://mozilla.org/MPL/2.0/. * * This file incorporates work covered by the following license notice: * * Licensed to the Apache Software Foundation (ASF) under one or more * contributor license agreements. See the NOTICE file distributed * with this work for additional information regarding copyright * ownership. The ASF licenses this file to you under the Apache * License, Version 2.0 (the "License"); you may not use this file * except in compliance with the License. You may obtain a copy of * the License at http://www.apache.org/licenses/LICENSE-2.0 . */ #include #include #include #include #include #include #include #include #include #include #include #include #define WHEEL_WIDTH 25 #define WHEEL_RADIUS ((WHEEL_WIDTH) >> 1 ) #define MAX_TIME 300 #define MIN_TIME 20 #define DEF_TIMEOUT 50 ImplWheelWindow::ImplWheelWindow( vcl::Window* pParent ) : FloatingWindow ( pParent, 0 ), mnRepaintTime ( 1 ), mnTimeout ( DEF_TIMEOUT ), mnWheelMode ( WheelMode::NONE ), mnActDist ( 0 ), mnActDeltaX ( 0 ), mnActDeltaY ( 0 ) { // we need a parent SAL_WARN_IF( !pParent, "vcl", "ImplWheelWindow::ImplWheelWindow(): Parent not set!" ); const Size aSize( pParent->GetOutputSizePixel() ); const StartAutoScrollFlags nFlags = ImplGetSVData()->mpWinData->mnAutoScrollFlags; const bool bHorz( nFlags & StartAutoScrollFlags::Horz ); const bool bVert( nFlags & StartAutoScrollFlags::Vert ); // calculate maximum speed distance mnMaxWidth = static_cast( 0.4 * hypot( static_cast(aSize.Width()), aSize.Height() ) ); // create wheel window SetTitleType( FloatWinTitleType::NONE ); ImplCreateImageList(); BitmapEx aBmp(SV_RESID_BITMAP_SCROLLMSK); ImplSetRegion(aBmp.GetBitmap()); // set wheel mode if( bHorz && bVert ) ImplSetWheelMode( WheelMode::VH ); else if( bHorz ) ImplSetWheelMode( WheelMode::H ); else ImplSetWheelMode( WheelMode::V ); // init timer mpTimer.reset(new Timer("WheelWindowTimer")); mpTimer->SetInvokeHandler( LINK( this, ImplWheelWindow, ImplScrollHdl ) ); mpTimer->SetTimeout( mnTimeout ); mpTimer->Start(); CaptureMouse(); } ImplWheelWindow::~ImplWheelWindow() { disposeOnce(); } void ImplWheelWindow::dispose() { ImplStop(); mpTimer.reset(); FloatingWindow::dispose(); } void ImplWheelWindow::ImplStop() { ReleaseMouse(); mpTimer->Stop(); Show(false); } void ImplWheelWindow::ImplSetRegion( const Bitmap& rRegionBmp ) { Point aPos( GetPointerPosPixel() ); const Size aSize( rRegionBmp.GetSizePixel() ); const tools::Rectangle aRect( Point(), aSize ); maCenter = maLastMousePos = aPos; aPos.AdjustX( -(aSize.Width() >> 1) ); aPos.AdjustY( -(aSize.Height() >> 1) ); SetPosSizePixel( aPos, aSize ); SetWindowRegionPixel( rRegionBmp.CreateRegion( COL_BLACK, aRect ) ); } void ImplWheelWindow::ImplCreateImageList() { maImgList.emplace_back(StockImage::Yes, SV_RESID_BITMAP_SCROLLVH); maImgList.emplace_back(StockImage::Yes, SV_RESID_BITMAP_SCROLLV); maImgList.emplace_back(StockImage::Yes, SV_RESID_BITMAP_SCROLLH); maImgList.emplace_back(StockImage::Yes, SV_RESID_BITMAP_WHEELVH); maImgList.emplace_back(StockImage::Yes, SV_RESID_BITMAP_WHEELV); maImgList.emplace_back(StockImage::Yes, SV_RESID_BITMAP_WHEELH); } void ImplWheelWindow::ImplSetWheelMode( WheelMode nWheelMode ) { if( nWheelMode == mnWheelMode ) return; mnWheelMode = nWheelMode; if( WheelMode::NONE == mnWheelMode ) { if( IsVisible() ) Hide(); } else { if( !IsVisible() ) Show(); Invalidate(); } } void ImplWheelWindow::ImplDrawWheel(vcl::RenderContext& rRenderContext) { int nIndex; switch (mnWheelMode) { case WheelMode::VH: nIndex = 0; break; case WheelMode::V: nIndex = 1; break; case WheelMode::H: nIndex = 2; break; case WheelMode::ScrollVH: nIndex = 3; break; case WheelMode::ScrollV: nIndex = 4; break; case WheelMode::ScrollH: nIndex = 5; break; default: nIndex = -1; break; } if (nIndex >= 0) rRenderContext.DrawImage(Point(), maImgList[nIndex]); } void ImplWheelWindow::ImplRecalcScrollValues() { if( mnActDist < WHEEL_RADIUS ) { mnActDeltaX = mnActDeltaY = 0; mnTimeout = DEF_TIMEOUT; } else { sal_uInt64 nCurTime; // calc current time if( mnMaxWidth ) { const double fExp = ( static_cast(mnActDist) / mnMaxWidth ) * log10( double(MAX_TIME) / MIN_TIME ); nCurTime = static_cast( MAX_TIME / pow( 10., fExp ) ); } else nCurTime = MAX_TIME; if( !nCurTime ) nCurTime = 1; if( mnRepaintTime <= nCurTime ) mnTimeout = nCurTime - mnRepaintTime; else { sal_uInt64 nMult = mnRepaintTime / nCurTime; if( !( mnRepaintTime % nCurTime ) ) mnTimeout = 0; else mnTimeout = ++nMult * nCurTime - mnRepaintTime; double fValX = static_cast(mnActDeltaX) * nMult; double fValY = static_cast(mnActDeltaY) * nMult; mnActDeltaX = o3tl::saturating_cast(fValX); mnActDeltaY = o3tl::saturating_cast(fValY); } } } PointerStyle ImplWheelWindow::ImplGetMousePointer( tools::Long nDistX, tools::Long nDistY ) const { PointerStyle eStyle; const StartAutoScrollFlags nFlags = ImplGetSVData()->mpWinData->mnAutoScrollFlags; const bool bHorz( nFlags & StartAutoScrollFlags::Horz ); const bool bVert( nFlags & StartAutoScrollFlags::Vert ); if( bHorz || bVert ) { if( mnActDist < WHEEL_RADIUS ) { if( bHorz && bVert ) eStyle = PointerStyle::AutoScrollNSWE; else if( bHorz ) eStyle = PointerStyle::AutoScrollWE; else eStyle = PointerStyle::AutoScrollNS; } else { double fAngle = basegfx::rad2deg(atan2(static_cast(-nDistY), nDistX)); if( fAngle < 0.0 ) fAngle += 360.; if( bHorz && bVert ) { if( fAngle >= 22.5 && fAngle <= 67.5 ) eStyle = PointerStyle::AutoScrollNE; else if( fAngle >= 67.5 && fAngle <= 112.5 ) eStyle = PointerStyle::AutoScrollN; else if( fAngle >= 112.5 && fAngle <= 157.5 ) eStyle = PointerStyle::AutoScrollNW; else if( fAngle >= 157.5 && fAngle <= 202.5 ) eStyle = PointerStyle::AutoScrollW; else if( fAngle >= 202.5 && fAngle <= 247.5 ) eStyle = PointerStyle::AutoScrollSW; else if( fAngle >= 247.5 && fAngle <= 292.5 ) eStyle = PointerStyle::AutoScrollS; else if( fAngle >= 292.5 && fAngle <= 337.5 ) eStyle = PointerStyle::AutoScrollSE; else eStyle = PointerStyle::AutoScrollE; } else if( bHorz ) { if( fAngle >= 270. || fAngle <= 90. ) eStyle = PointerStyle::AutoScrollE; else eStyle = PointerStyle::AutoScrollW; } else { if( fAngle >= 0. && fAngle <= 180. ) eStyle = PointerStyle::AutoScrollN; else eStyle = PointerStyle::AutoScrollS; } } } else eStyle = PointerStyle::Arrow; return eStyle; } void ImplWheelWindow::Paint(vcl::RenderContext& rRenderContext, const tools::Rectangle&) { ImplDrawWheel(rRenderContext); } void ImplWheelWindow::MouseMove( const MouseEvent& rMEvt ) { FloatingWindow::MouseMove( rMEvt ); const Point aMousePos( OutputToScreenPixel( rMEvt.GetPosPixel() ) ); const tools::Long nDistX = aMousePos.X() - maCenter.X(); const tools::Long nDistY = aMousePos.Y() - maCenter.Y(); mnActDist = static_cast(hypot( static_cast(nDistX), nDistY )); const PointerStyle eActStyle = ImplGetMousePointer( nDistX, nDistY ); const StartAutoScrollFlags nFlags = ImplGetSVData()->mpWinData->mnAutoScrollFlags; const bool bHorz( nFlags & StartAutoScrollFlags::Horz ); const bool bVert( nFlags & StartAutoScrollFlags::Vert ); const bool bOuter = mnActDist > WHEEL_RADIUS; if( bOuter && ( maLastMousePos != aMousePos ) ) { switch( eActStyle ) { case PointerStyle::AutoScrollN: mnActDeltaX = +0; mnActDeltaY = +1; break; case PointerStyle::AutoScrollS: mnActDeltaX = +0; mnActDeltaY = -1; break; case PointerStyle::AutoScrollW: mnActDeltaX = +1; mnActDeltaY = +0; break; case PointerStyle::AutoScrollE: mnActDeltaX = -1; mnActDeltaY = +0; break; case PointerStyle::AutoScrollNW: mnActDeltaX = +1; mnActDeltaY = +1; break; case PointerStyle::AutoScrollNE: mnActDeltaX = -1; mnActDeltaY = +1; break; case PointerStyle::AutoScrollSW: mnActDeltaX = +1; mnActDeltaY = -1; break; case PointerStyle::AutoScrollSE: mnActDeltaX = -1; mnActDeltaY = -1; break; default: break; } } ImplRecalcScrollValues(); maLastMousePos = aMousePos; SetPointer( eActStyle ); if( bHorz && bVert ) ImplSetWheelMode( bOuter ? WheelMode::ScrollVH : WheelMode::VH ); else if( bHorz ) ImplSetWheelMode( bOuter ? WheelMode::ScrollH : WheelMode::H ); else ImplSetWheelMode( bOuter ? WheelMode::ScrollV : WheelMode::V ); } void ImplWheelWindow::MouseButtonUp( const MouseEvent& rMEvt ) { if( mnActDist > WHEEL_RADIUS ) GetParent()->EndAutoScroll(); else FloatingWindow::MouseButtonUp( rMEvt ); } IMPL_LINK_NOARG(ImplWheelWindow, ImplScrollHdl, Timer *, void) { if ( mnActDeltaX || mnActDeltaY ) { vcl::Window* pWindow = GetParent(); const Point aMousePos( pWindow->OutputToScreenPixel( pWindow->GetPointerPosPixel() ) ); Point aCmdMousePos( pWindow->ScreenToOutputPixel( aMousePos ) ); CommandScrollData aScrollData( mnActDeltaX, mnActDeltaY ); CommandEvent aCEvt( aCmdMousePos, CommandEventId::AutoScroll, true, &aScrollData ); NotifyEvent aNCmdEvt( NotifyEventType::COMMAND, pWindow, &aCEvt ); if ( !ImplCallPreNotify( aNCmdEvt ) ) { const sal_uInt64 nTime = tools::Time::GetSystemTicks(); VclPtr xWin(this); pWindow->Command( aCEvt ); if( xWin->isDisposed() ) return; mnRepaintTime = std::max( tools::Time::GetSystemTicks() - nTime, sal_uInt64(1) ); ImplRecalcScrollValues(); } } if ( mnTimeout != mpTimer->GetTimeout() ) mpTimer->SetTimeout( mnTimeout ); mpTimer->Start(); } /* vim:set shiftwidth=4 softtabstop=4 expandtab: */ ing LibreOffice 核心代码仓库文档基金会
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2019-06-30Breeze: Fix for tdf#126155, tdf#124127, tdf#89884,Rizal Muttaqin