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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 09:06:44 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 09:06:44 +0000
commited5640d8b587fbcfed7dd7967f3de04b37a76f26 (patch)
tree7a5f7c6c9d02226d7471cb3cc8fbbf631b415303 /vcl/source/window/scrwnd.cxx
parentInitial commit. (diff)
downloadlibreoffice-ed5640d8b587fbcfed7dd7967f3de04b37a76f26.tar.xz
libreoffice-ed5640d8b587fbcfed7dd7967f3de04b37a76f26.zip
Adding upstream version 4:7.4.7.upstream/4%7.4.7upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'vcl/source/window/scrwnd.cxx')
-rw-r--r--vcl/source/window/scrwnd.cxx379
1 files changed, 379 insertions, 0 deletions
diff --git a/vcl/source/window/scrwnd.cxx b/vcl/source/window/scrwnd.cxx
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+++ b/vcl/source/window/scrwnd.cxx
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+/* -*- 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 <limits.h>
+
+#include <o3tl/float_int_conversion.hxx>
+#include <tools/time.hxx>
+
+#include <bitmaps.hlst>
+#include <svdata.hxx>
+#include <scrwnd.hxx>
+
+#include <vcl/timer.hxx>
+#include <vcl/commandevent.hxx>
+#include <vcl/event.hxx>
+#include <vcl/ptrstyle.hxx>
+#include <sal/log.hxx>
+
+#include <math.h>
+
+#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<sal_uLong>( 0.4 * hypot( static_cast<double>(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<double>(mnActDist) / mnMaxWidth ) * log10( double(MAX_TIME) / MIN_TIME );
+ nCurTime = static_cast<sal_uInt64>( 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<double>(mnActDeltaX) * nMult;
+ double fValY = static_cast<double>(mnActDeltaY) * nMult;
+
+ mnActDeltaX = o3tl::saturating_cast<tools::Long>(fValX);
+ mnActDeltaY = o3tl::saturating_cast<tools::Long>(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<double>(-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<sal_uLong>(hypot( static_cast<double>(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->ImplFrameToOutput( aMousePos ) );
+ CommandScrollData aScrollData( mnActDeltaX, mnActDeltaY );
+ CommandEvent aCEvt( aCmdMousePos, CommandEventId::AutoScroll, true, &aScrollData );
+ NotifyEvent aNCmdEvt( MouseNotifyEvent::COMMAND, pWindow, &aCEvt );
+
+ if ( !ImplCallPreNotify( aNCmdEvt ) )
+ {
+ const sal_uInt64 nTime = tools::Time::GetSystemTicks();
+ VclPtr<ImplWheelWindow> 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: */