412 lines
12 KiB
C++
412 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 <vcl/svapp.hxx>
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#include <vcl/timer.hxx>
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#include <vcl/settings.hxx>
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#include <vcl/window.hxx>
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#include <vcl/cursor.hxx>
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#include <window.h>
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#include <tools/poly.hxx>
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struct ImplCursorData
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{
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AutoTimer maTimer; // Timer
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Point maPixPos; // Pixel-Position
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Point maPixRotOff; // Pixel-Offset-Position
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Size maPixSize; // Pixel-Size
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long mnPixSlant; // Pixel-Slant
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short mnOrientation; // Pixel-Orientation
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CursorDirection mnDirection; // indicates writing direction
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sal_uInt16 mnStyle; // Cursor-Style
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bool mbCurVisible; // Ist Cursor aktuell sichtbar
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VclPtr<vcl::Window> mpWindow; // Zugeordnetes Windows
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};
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static void ImplCursorInvert( ImplCursorData* pData )
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{
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vcl::Window* pWindow = pData->mpWindow;
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std::unique_ptr<PaintBufferGuard> pGuard;
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const bool bDoubleBuffering = pWindow->SupportsDoubleBuffering();
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if (bDoubleBuffering)
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pGuard.reset(new PaintBufferGuard(pWindow->ImplGetWindowImpl()->mpFrameData, pWindow));
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vcl::RenderContext* pRenderContext = bDoubleBuffering ? pGuard->GetRenderContext() : pWindow;
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Rectangle aPaintRect;
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bool bMapMode = pRenderContext->IsMapModeEnabled();
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pRenderContext->EnableMapMode( false );
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InvertFlags nInvertStyle;
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if ( pData->mnStyle & CURSOR_SHADOW )
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nInvertStyle = InvertFlags::N50;
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else
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nInvertStyle = InvertFlags::NONE;
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Rectangle aRect( pData->maPixPos, pData->maPixSize );
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if ( pData->mnDirection != CursorDirection::NONE || pData->mnOrientation || pData->mnPixSlant )
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{
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tools::Polygon aPoly( aRect );
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if( aPoly.GetSize() == 5 )
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{
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aPoly[1].X() += 1; // include the right border
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aPoly[2].X() += 1;
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if ( pData->mnPixSlant )
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{
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Point aPoint = aPoly.GetPoint( 0 );
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aPoint.X() += pData->mnPixSlant;
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aPoly.SetPoint( aPoint, 0 );
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aPoly.SetPoint( aPoint, 4 );
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aPoint = aPoly.GetPoint( 1 );
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aPoint.X() += pData->mnPixSlant;
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aPoly.SetPoint( aPoint, 1 );
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}
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// apply direction flag after slant to use the correct shape
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if ( pData->mnDirection != CursorDirection::NONE)
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{
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Point pAry[7];
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int delta = 3*aRect.getWidth()+1;
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if( pData->mnDirection == CursorDirection::LTR )
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{
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// left-to-right
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pAry[0] = aPoly.GetPoint( 0 );
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pAry[1] = aPoly.GetPoint( 1 );
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pAry[2] = pAry[1];
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pAry[2].X() += delta;
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pAry[3] = pAry[1];
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pAry[3].Y() += delta;
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pAry[4] = aPoly.GetPoint( 2 );
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pAry[5] = aPoly.GetPoint( 3 );
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pAry[6] = aPoly.GetPoint( 4 );
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}
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else if( pData->mnDirection == CursorDirection::RTL )
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{
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// right-to-left
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pAry[0] = aPoly.GetPoint( 0 );
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pAry[1] = aPoly.GetPoint( 1 );
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pAry[2] = aPoly.GetPoint( 2 );
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pAry[3] = aPoly.GetPoint( 3 );
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pAry[4] = pAry[0];
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pAry[4].Y() += delta;
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pAry[5] = pAry[0];
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pAry[5].X() -= delta;
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pAry[6] = aPoly.GetPoint( 4 );
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}
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aPoly = tools::Polygon( 7, pAry);
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}
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if ( pData->mnOrientation )
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aPoly.Rotate( pData->maPixRotOff, pData->mnOrientation );
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pRenderContext->Invert( aPoly, nInvertStyle );
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if (bDoubleBuffering)
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aPaintRect = aPoly.GetBoundRect();
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}
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}
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else
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{
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pRenderContext->Invert( aRect, nInvertStyle );
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if (bDoubleBuffering)
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aPaintRect = aRect;
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}
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pRenderContext->EnableMapMode( bMapMode );
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if (bDoubleBuffering)
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pGuard->SetPaintRect(pRenderContext->PixelToLogic(aPaintRect));
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}
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void vcl::Cursor::ImplDraw()
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{
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if ( mpData && mpData->mpWindow && !mpData->mbCurVisible )
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{
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vcl::Window* pWindow = mpData->mpWindow;
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mpData->maPixPos = pWindow->LogicToPixel( maPos );
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mpData->maPixSize = pWindow->LogicToPixel( maSize );
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mpData->mnPixSlant = pWindow->LogicToPixel( Size( mnSlant, 0 ) ).Width();
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mpData->mnOrientation = mnOrientation;
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mpData->mnDirection = mnDirection;
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// correct the position with the offset
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mpData->maPixRotOff = mpData->maPixPos;
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// use width (as set in Settings) if size is 0,
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if ( !mpData->maPixSize.Width() )
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mpData->maPixSize.Width() = pWindow->GetSettings().GetStyleSettings().GetCursorSize();
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// calculate output area and display
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ImplCursorInvert( mpData );
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mpData->mbCurVisible = true;
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}
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}
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void vcl::Cursor::ImplRestore()
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{
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assert( mpData && mpData->mbCurVisible );
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ImplCursorInvert( mpData );
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mpData->mbCurVisible = false;
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}
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void vcl::Cursor::ImplDoShow( bool bDrawDirect, bool bRestore )
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{
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if ( mbVisible )
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{
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vcl::Window* pWindow;
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if ( mpWindow )
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pWindow = mpWindow;
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else
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{
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// show the cursor, if there is an active window and the cursor
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// has been selected in this window
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pWindow = Application::GetFocusWindow();
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if ( !pWindow || (pWindow->mpWindowImpl->mpCursor != this) || pWindow->mpWindowImpl->mbInPaint
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|| !pWindow->mpWindowImpl->mpFrameData->mbHasFocus )
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pWindow = nullptr;
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}
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if ( pWindow )
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{
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if ( !mpData )
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{
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mpData = new ImplCursorData;
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mpData->mbCurVisible = false;
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mpData->maTimer.SetTimeoutHdl( LINK( this, Cursor, ImplTimerHdl ) );
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}
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mpData->mpWindow = pWindow;
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mpData->mnStyle = mnStyle;
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if ( bDrawDirect || bRestore )
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ImplDraw();
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if ( !mpWindow && ! ( ! bDrawDirect && mpData->maTimer.IsActive()) )
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{
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mpData->maTimer.SetTimeout( pWindow->GetSettings().GetStyleSettings().GetCursorBlinkTime() );
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if ( mpData->maTimer.GetTimeout() != STYLE_CURSOR_NOBLINKTIME )
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mpData->maTimer.Start();
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else if ( !mpData->mbCurVisible )
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ImplDraw();
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}
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}
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}
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}
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bool vcl::Cursor::ImplDoHide( bool bSuspend )
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{
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bool bWasCurVisible = false;
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if ( mpData && mpData->mpWindow )
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{
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bWasCurVisible = mpData->mbCurVisible;
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if ( mpData->mbCurVisible )
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ImplRestore();
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if ( !bSuspend )
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{
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mpData->maTimer.Stop();
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mpData->mpWindow = nullptr;
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}
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}
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return bWasCurVisible;
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}
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void vcl::Cursor::ImplShow( bool bDrawDirect )
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{
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ImplDoShow( bDrawDirect, false );
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}
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void vcl::Cursor::ImplHide( bool i_bStopTimer )
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{
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assert( i_bStopTimer );
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ImplDoHide( !i_bStopTimer );
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}
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void vcl::Cursor::ImplResume( bool bRestore )
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{
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ImplDoShow( false, bRestore );
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}
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bool vcl::Cursor::ImplSuspend()
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{
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return ImplDoHide( true );
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}
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void vcl::Cursor::ImplNew()
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{
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if ( mbVisible && mpData && mpData->mpWindow )
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{
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if ( mpData->mbCurVisible )
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ImplRestore();
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ImplDraw();
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if ( !mpWindow )
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{
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if ( mpData->maTimer.GetTimeout() != STYLE_CURSOR_NOBLINKTIME )
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mpData->maTimer.Start();
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}
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}
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}
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IMPL_LINK_NOARG_TYPED(vcl::Cursor, ImplTimerHdl, Timer *, void)
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{
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if ( mpData->mbCurVisible )
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ImplRestore();
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else
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ImplDraw();
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}
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vcl::Cursor::Cursor()
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{
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mpData = nullptr;
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mpWindow = nullptr;
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mnSlant = 0;
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mnOrientation = 0;
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mnDirection = CursorDirection::NONE;
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mnStyle = 0;
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mbVisible = false;
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}
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vcl::Cursor::Cursor( const Cursor& rCursor ) :
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maSize( rCursor.maSize ),
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maPos( rCursor.maPos )
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{
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mpData = nullptr;
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mpWindow = nullptr;
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mnSlant = rCursor.mnSlant;
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mnOrientation = rCursor.mnOrientation;
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mnDirection = rCursor.mnDirection;
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mnStyle = 0;
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mbVisible = rCursor.mbVisible;
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}
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vcl::Cursor::~Cursor()
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{
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if ( mpData )
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{
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if ( mpData->mbCurVisible )
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ImplRestore();
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delete mpData;
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}
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}
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void vcl::Cursor::SetStyle( sal_uInt16 nStyle )
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{
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if ( mnStyle != nStyle )
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{
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mnStyle = nStyle;
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ImplNew();
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}
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}
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void vcl::Cursor::Show()
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{
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if ( !mbVisible )
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{
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mbVisible = true;
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ImplShow();
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}
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}
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void vcl::Cursor::Hide()
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{
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if ( mbVisible )
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{
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mbVisible = false;
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ImplHide( true );
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}
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}
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void vcl::Cursor::SetWindow( vcl::Window* pWindow )
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{
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if ( mpWindow.get() != pWindow )
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{
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mpWindow = pWindow;
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ImplNew();
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}
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}
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void vcl::Cursor::SetPos( const Point& rPoint )
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{
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if ( maPos != rPoint )
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{
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maPos = rPoint;
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ImplNew();
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}
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}
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void vcl::Cursor::SetSize( const Size& rSize )
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{
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if ( maSize != rSize )
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{
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maSize = rSize;
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ImplNew();
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}
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}
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void vcl::Cursor::SetWidth( long nNewWidth )
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{
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if ( maSize.Width() != nNewWidth )
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{
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maSize.Width() = nNewWidth;
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ImplNew();
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}
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}
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void vcl::Cursor::SetOrientation( short nNewOrientation )
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{
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if ( mnOrientation != nNewOrientation )
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{
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mnOrientation = nNewOrientation;
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ImplNew();
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}
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}
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void vcl::Cursor::SetDirection( CursorDirection nNewDirection )
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{
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if ( mnDirection != nNewDirection )
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{
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mnDirection = nNewDirection;
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ImplNew();
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}
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}
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vcl::Cursor& vcl::Cursor::operator=( const vcl::Cursor& rCursor )
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{
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maPos = rCursor.maPos;
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maSize = rCursor.maSize;
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mnSlant = rCursor.mnSlant;
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mnOrientation = rCursor.mnOrientation;
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mnDirection = rCursor.mnDirection;
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mbVisible = rCursor.mbVisible;
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ImplNew();
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return *this;
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}
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bool vcl::Cursor::operator==( const vcl::Cursor& rCursor ) const
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{
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return
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((maPos == rCursor.maPos) &&
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(maSize == rCursor.maSize) &&
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(mnSlant == rCursor.mnSlant) &&
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(mnOrientation == rCursor.mnOrientation) &&
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(mnDirection == rCursor.mnDirection) &&
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(mbVisible == rCursor.mbVisible))
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;
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}
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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