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Diffstat (limited to 'starmath/source/scrwin.cxx')
| -rw-r--r-- | starmath/source/scrwin.cxx | 345 |
1 files changed, 0 insertions, 345 deletions
diff --git a/starmath/source/scrwin.cxx b/starmath/source/scrwin.cxx deleted file mode 100644 index 596ed799424e..000000000000 --- a/starmath/source/scrwin.cxx +++ /dev/null @@ -1,345 +0,0 @@ -/* -*- 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 <vcl/commandevent.hxx> -#include <vcl/event.hxx> -#include <vcl/settings.hxx> -#include <vcl/scrbar.hxx> -#include <scrwin.hxx> - -ScrollableWindow::ScrollableWindow( vcl::Window* pParent ) : - Window( pParent, WB_CLIPCHILDREN ), - aVScroll( VclPtr<ScrollBar>::Create(this, WinBits(WB_VSCROLL | WB_DRAG)) ), - aHScroll( VclPtr<ScrollBar>::Create(this, WinBits(WB_HSCROLL | WB_DRAG)) ), - aCornerWin( VclPtr<ScrollBarBox>::Create(this) ) -{ - bScrolling = false; - - // set the handlers for the scrollbars - aVScroll->SetScrollHdl( LINK(this, ScrollableWindow, ScrollHdl) ); - aHScroll->SetScrollHdl( LINK(this, ScrollableWindow, ScrollHdl) ); - aVScroll->SetEndScrollHdl( LINK(this, ScrollableWindow, EndScrollHdl) ); - aHScroll->SetEndScrollHdl( LINK(this, ScrollableWindow, EndScrollHdl) ); - - nColumnPixW = nLinePixH = GetSettings().GetStyleSettings().GetScrollBarSize(); -} - - -ScrollableWindow::~ScrollableWindow() -{ - disposeOnce(); -} - -void ScrollableWindow::dispose() -{ - aVScroll.disposeAndClear(); - aHScroll.disposeAndClear(); - aCornerWin.disposeAndClear(); - Window::dispose(); -} - - -void ScrollableWindow::Command( const CommandEvent& rCEvt ) -{ - if ( (rCEvt.GetCommand() == CommandEventId::Wheel) || - (rCEvt.GetCommand() == CommandEventId::StartAutoScroll) || - (rCEvt.GetCommand() == CommandEventId::AutoScroll) ) - { - ScrollBar* pHScrBar; - ScrollBar* pVScrBar; - if ( aHScroll->IsVisible() ) - pHScrBar = aHScroll.get(); - else - pHScrBar = nullptr; - if ( aVScroll->IsVisible() ) - pVScrBar = aVScroll.get(); - else - pVScrBar = nullptr; - if ( HandleScrollCommand( rCEvt, pHScrBar, pVScrBar ) ) - return; - } - - Window::Command( rCEvt ); -} - - -void ScrollableWindow::DataChanged( const DataChangedEvent& rDCEvt ) -{ - if ( (rDCEvt.GetType() == DataChangedEventType::SETTINGS) && - (rDCEvt.GetFlags() & AllSettingsFlags::STYLE) ) - { - Resize(); - Invalidate(); - } - - Window::DataChanged( rDCEvt ); -} - - -Size ScrollableWindow::GetOutputSizePixel() const -{ - Size aSz( Window::GetOutputSizePixel() ); - - tools::Long nTmp = GetSettings().GetStyleSettings().GetScrollBarSize(); - if ( aHScroll->IsVisible() ) - aSz.AdjustHeight( -nTmp ); - if ( aVScroll->IsVisible() ) - aSz.AdjustWidth( -nTmp ); - return aSz; -} - - -IMPL_LINK( ScrollableWindow, EndScrollHdl, ScrollBar *, /*pScroll*/, void ) -{ - // notify the end of scrolling - bScrolling = false; -} - - -IMPL_LINK( ScrollableWindow, ScrollHdl, ScrollBar *, pScroll, void ) -{ - // notify the start of scrolling, if not already scrolling - if ( !bScrolling ) - bScrolling = true; - - // get the delta in logic coordinates - Size aDelta( PixelToLogic( - Size( aHScroll->GetDelta(), aVScroll->GetDelta() ) ) ); - if ( pScroll == aHScroll.get() ) - Scroll( aDelta.Width(), 0 ); - else - Scroll( 0, aDelta.Height() ); -} - - -void ScrollableWindow::Resize() -{ - // get the new output-size in pixel - Size aOutPixSz = Window::GetOutputSizePixel(); - - // determine the size of the output-area and if we need scrollbars - const tools::Long nScrSize = GetSettings().GetStyleSettings().GetScrollBarSize(); - bool bVVisible = false; // by default no vertical-ScrollBar - bool bHVisible = false; // by default no horizontal-ScrollBar - bool bChanged; // determines if a visiblility was changed - do - { - bChanged = false; - - // does we need a vertical ScrollBar - if ( aOutPixSz.Width() < aTotPixSz.Width() && !bHVisible ) - { - bHVisible = true; - aOutPixSz.AdjustHeight( -nScrSize ); - bChanged = true; - } - - // does we need a horizontal ScrollBar - if ( aOutPixSz.Height() < aTotPixSz.Height() && !bVVisible ) - { - bVVisible = true; - aOutPixSz.AdjustWidth( -nScrSize ); - bChanged = true; - } - - } - while ( bChanged ); // until no visibility has changed - - // store the old offset and map-mode - MapMode aMap( GetMapMode() ); - Point aOldPixOffset( aPixOffset ); - - // justify (right/bottom borders should never exceed the virtual window) - Size aPixDelta; - if ( aPixOffset.X() < 0 && - aPixOffset.X() + aTotPixSz.Width() < aOutPixSz.Width() ) - aPixDelta.setWidth( - aOutPixSz.Width() - ( aPixOffset.X() + aTotPixSz.Width() ) ); - if ( aPixOffset.Y() < 0 && - aPixOffset.Y() + aTotPixSz.Height() < aOutPixSz.Height() ) - aPixDelta.setHeight( - aOutPixSz.Height() - ( aPixOffset.Y() + aTotPixSz.Height() ) ); - if ( aPixDelta.Width() || aPixDelta.Height() ) - { - aPixOffset.AdjustX(aPixDelta.Width() ); - aPixOffset.AdjustY(aPixDelta.Height() ); - } - - // for axis without scrollbar restore the origin - if ( !bVVisible || !bHVisible ) - { - aPixOffset = Point( - bHVisible - ? aPixOffset.X() - : (aOutPixSz.Width()-aTotPixSz.Width()) / 2, - bVVisible - ? aPixOffset.Y() - : (aOutPixSz.Height()-aTotPixSz.Height()) / 2 ); - } - if ( bHVisible && !aHScroll->IsVisible() ) - aPixOffset.setX( 0 ); - if ( bVVisible && !aVScroll->IsVisible() ) - aPixOffset.setY( 0 ); - - // select the shifted map-mode - if ( aPixOffset != aOldPixOffset ) - { - Window::SetMapMode( MapMode( MapUnit::MapPixel ) ); - Window::Scroll( - aPixOffset.X() - aOldPixOffset.X(), - aPixOffset.Y() - aOldPixOffset.Y() ); - SetMapMode( aMap ); - } - - // show or hide scrollbars - aVScroll->Show( bVVisible ); - aHScroll->Show( bHVisible ); - - // disable painting in the corner between the scrollbars - if ( bVVisible && bHVisible ) - { - aCornerWin->SetPosSizePixel(Point(aOutPixSz.Width(), aOutPixSz.Height()), - Size(nScrSize, nScrSize) ); - aCornerWin->Show(); - } - else - aCornerWin->Hide(); - - // resize scrollbars and set their ranges - if ( bHVisible ) - { - aHScroll->SetPosSizePixel( - Point( 0, aOutPixSz.Height() ), - Size( aOutPixSz.Width(), nScrSize ) ); - aHScroll->SetRange( Range( 0, aTotPixSz.Width() ) ); - aHScroll->SetPageSize( aOutPixSz.Width() ); - aHScroll->SetVisibleSize( aOutPixSz.Width() ); - aHScroll->SetLineSize( nColumnPixW ); - aHScroll->SetThumbPos( -aPixOffset.X() ); - } - if ( bVVisible ) - { - aVScroll->SetPosSizePixel( - Point( aOutPixSz.Width(), 0 ), - Size( nScrSize,aOutPixSz.Height() ) ); - aVScroll->SetRange( Range( 0, aTotPixSz.Height() ) ); - aVScroll->SetPageSize( aOutPixSz.Height() ); - aVScroll->SetVisibleSize( aOutPixSz.Height() ); - aVScroll->SetLineSize( nLinePixH ); - aVScroll->SetThumbPos( -aPixOffset.Y() ); - } -} - - -void ScrollableWindow::SetMapMode( const MapMode& rNewMapMode ) -{ - MapMode aMap( rNewMapMode ); - aMap.SetOrigin( aMap.GetOrigin() + PixelToLogic( aPixOffset, aMap ) ); - Window::SetMapMode( aMap ); -} - - -MapMode ScrollableWindow::GetMapMode() const -{ - MapMode aMap( Window::GetMapMode() ); - aMap.SetOrigin( aMap.GetOrigin() - PixelToLogic( aPixOffset ) ); - return aMap; -} - - -void ScrollableWindow::SetTotalSize( const Size& rNewSize ) -{ - aTotPixSz = LogicToPixel( rNewSize ); - ScrollableWindow::Resize(); -} - - -void ScrollableWindow::Scroll( tools::Long nDeltaX, tools::Long nDeltaY, ScrollFlags ) -{ - // get the delta in pixel - Size aDeltaPix( LogicToPixel( Size(nDeltaX, nDeltaY) ) ); - Size aOutPixSz( GetOutputSizePixel() ); - MapMode aMap( GetMapMode() ); - Point aNewPixOffset( aPixOffset ); - - // scrolling horizontally? - if ( nDeltaX != 0 ) - { - aNewPixOffset.AdjustX( -(aDeltaPix.Width()) ); - if ( ( aOutPixSz.Width() - aNewPixOffset.X() ) > aTotPixSz.Width() ) - aNewPixOffset.setX( - ( aTotPixSz.Width() - aOutPixSz.Width() ) ); - else if ( aNewPixOffset.X() > 0 ) - aNewPixOffset.setX( 0 ); - } - - // scrolling vertically? - if ( nDeltaY != 0 ) - { - aNewPixOffset.AdjustY( -(aDeltaPix.Height()) ); - if ( ( aOutPixSz.Height() - aNewPixOffset.Y() ) > aTotPixSz.Height() ) - aNewPixOffset.setY( - ( aTotPixSz.Height() - aOutPixSz.Height() ) ); - else if ( aNewPixOffset.Y() > 0 ) - aNewPixOffset.setY( 0 ); - } - - // recompute the logical scroll units - aDeltaPix.setWidth( aPixOffset.X() - aNewPixOffset.X() ); - aDeltaPix.setHeight( aPixOffset.Y() - aNewPixOffset.Y() ); - Size aDelta( PixelToLogic(aDeltaPix) ); - nDeltaX = aDelta.Width(); - nDeltaY = aDelta.Height(); - aPixOffset = aNewPixOffset; - - // scrolling? - if ( nDeltaX != 0 || nDeltaY != 0 ) - { - PaintImmediately(); - - // does the new area overlap the old one? - if ( std::abs( static_cast<int>(aDeltaPix.Height()) ) < aOutPixSz.Height() || - std::abs( static_cast<int>(aDeltaPix.Width()) ) < aOutPixSz.Width() ) - { - // scroll the overlapping area - SetMapMode( aMap ); - - // never scroll the scrollbars itself! - Window::Scroll(-nDeltaX, -nDeltaY, - PixelToLogic( tools::Rectangle( Point(0, 0), aOutPixSz ) ) ); - } - else - { - // repaint all - SetMapMode( aMap ); - Invalidate(); - } - - PaintImmediately(); - } - - if ( !bScrolling ) - { - if ( nDeltaX ) - aHScroll->SetThumbPos( -aPixOffset.X() ); - if ( nDeltaY ) - aVScroll->SetThumbPos( -aPixOffset.Y() ); - } -} - - -/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |