83d0b6bd8d
Change-Id: I72438d38c75a7facb9bd5f9cfb7be1213ac3d141 Reviewed-on: https://gerrit.libreoffice.org/c/core/+/168356 Tested-by: Jenkins Reviewed-by: Noel Grandin <noel.grandin@collabora.co.uk>
471 lines
17 KiB
C++
471 lines
17 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 <tbzoomsliderctrl.hxx>
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#include <i18nutil/unicode.hxx>
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#include <vcl/svapp.hxx>
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#include <comphelper/propertyvalue.hxx>
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#include <utility>
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#include <vcl/InterimItemWindow.hxx>
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#include <vcl/event.hxx>
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#include <vcl/image.hxx>
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#include <vcl/toolbox.hxx>
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#include <vcl/virdev.hxx>
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#include <svx/zoomslideritem.hxx>
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#include <iterator>
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#include <set>
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#include <bitmaps.hlst>
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#include <com/sun/star/frame/XFrame.hpp>
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#include <com/sun/star/frame/XDispatchProvider.hpp>
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// class ScZoomSliderControl ---------------------------------------
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SFX_IMPL_TOOLBOX_CONTROL( ScZoomSliderControl, SvxZoomSliderItem );
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ScZoomSliderControl::ScZoomSliderControl(
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sal_uInt16 nSlotId,
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ToolBoxItemId nId,
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ToolBox& rTbx )
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:SfxToolBoxControl( nSlotId, nId, rTbx )
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{
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rTbx.Invalidate();
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}
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ScZoomSliderControl::~ScZoomSliderControl()
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{
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}
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void ScZoomSliderControl::StateChangedAtToolBoxControl( sal_uInt16 /*nSID*/, SfxItemState eState,
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const SfxPoolItem* pState )
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{
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ToolBoxItemId nId = GetId();
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ToolBox& rTbx = GetToolBox();
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ScZoomSliderWnd* pBox = static_cast<ScZoomSliderWnd*>(rTbx.GetItemWindow( nId ));
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OSL_ENSURE( pBox ,"Control not found!" );
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if (SfxItemState::DEFAULT != eState || SfxItemState::DISABLED == eState)
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{
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SvxZoomSliderItem aZoomSliderItem( 100 );
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pBox->Disable();
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pBox->UpdateFromItem( &aZoomSliderItem );
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}
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else
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{
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pBox->Enable();
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OSL_ENSURE( dynamic_cast<const SvxZoomSliderItem*>( pState) != nullptr, "invalid item type" );
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const SvxZoomSliderItem* pZoomSliderItem = dynamic_cast< const SvxZoomSliderItem* >( pState );
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OSL_ENSURE( pZoomSliderItem, "Sc::ScZoomSliderControl::StateChanged(), wrong item type!" );
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if( pZoomSliderItem )
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pBox->UpdateFromItem( pZoomSliderItem );
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}
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}
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VclPtr<InterimItemWindow> ScZoomSliderControl::CreateItemWindow( vcl::Window *pParent )
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{
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// #i98000# Don't try to get a value via SfxViewFrame::Current here.
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// The view's value is always notified via StateChanged later.
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VclPtrInstance<ScZoomSliderWnd> xSlider( pParent,
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css::uno::Reference< css::frame::XDispatchProvider >( m_xFrame->getController(),
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css::uno::UNO_QUERY ), 100 );
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return xSlider;
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}
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constexpr sal_uInt16 gnSliderCenter(100);
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const tools::Long nButtonWidth = 10;
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const tools::Long nButtonHeight = 10;
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const tools::Long nIncDecWidth = 11;
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const tools::Long nIncDecHeight = 11;
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const tools::Long nSliderHeight = 2;
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const tools::Long nSliderWidth = 4;
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const tools::Long nSnappingHeight = 4;
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const tools::Long nSliderXOffset = 20;
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const tools::Long nSnappingEpsilon = 5; // snapping epsilon in pixels
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const tools::Long nSnappingPointsMinDist = nSnappingEpsilon; // minimum distance of two adjacent snapping points
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sal_uInt16 ScZoomSlider::Offset2Zoom( tools::Long nOffset ) const
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{
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const tools::Long nControlWidth = GetSliderLength();
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sal_uInt16 nRet = 0;
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if( nOffset < nSliderXOffset )
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return mnMinZoom;
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if( nOffset > nControlWidth - nSliderXOffset )
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return mnMaxZoom;
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// check for snapping points:
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auto aSnappingPointIter = std::find_if(maSnappingPointOffsets.begin(), maSnappingPointOffsets.end(),
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[nOffset](const tools::Long nCurrent) { return std::abs(nCurrent - nOffset) < nSnappingEpsilon; });
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if (aSnappingPointIter != maSnappingPointOffsets.end())
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{
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nOffset = *aSnappingPointIter;
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auto nCount = static_cast<sal_uInt16>(std::distance(maSnappingPointOffsets.begin(), aSnappingPointIter));
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nRet = maSnappingPointZooms[ nCount ];
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}
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if( 0 == nRet )
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{
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if( nOffset < nControlWidth / 2 )
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{
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// first half of slider
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const tools::Long nFirstHalfRange = gnSliderCenter - mnMinZoom;
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const tools::Long nHalfSliderWidth = nControlWidth/2 - nSliderXOffset;
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const tools::Long nZoomPerSliderPixel = (1000 * nFirstHalfRange) / nHalfSliderWidth;
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const tools::Long nOffsetToSliderLeft = nOffset - nSliderXOffset;
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nRet = mnMinZoom + sal_uInt16( nOffsetToSliderLeft * nZoomPerSliderPixel / 1000 );
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}
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else
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{
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// second half of slider
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const tools::Long nSecondHalfRange = mnMaxZoom - gnSliderCenter;
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const tools::Long nHalfSliderWidth = nControlWidth/2 - nSliderXOffset;
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const tools::Long nZoomPerSliderPixel = 1000 * nSecondHalfRange / nHalfSliderWidth;
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const tools::Long nOffsetToSliderCenter = nOffset - nControlWidth/2;
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nRet = gnSliderCenter + sal_uInt16( nOffsetToSliderCenter * nZoomPerSliderPixel / 1000 );
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}
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}
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if( nRet < mnMinZoom )
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return mnMinZoom;
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else if( nRet > mnMaxZoom )
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return mnMaxZoom;
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return nRet;
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}
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tools::Long ScZoomSlider::Zoom2Offset( sal_uInt16 nCurrentZoom ) const
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{
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const tools::Long nControlWidth = GetSliderLength();
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tools::Long nRect = nSliderXOffset;
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const tools::Long nHalfSliderWidth = nControlWidth/2 - nSliderXOffset;
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if( nCurrentZoom <= gnSliderCenter )
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{
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nCurrentZoom = nCurrentZoom - mnMinZoom;
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const tools::Long nFirstHalfRange = gnSliderCenter - mnMinZoom;
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const tools::Long nSliderPixelPerZoomPercent = 1000 * nHalfSliderWidth / nFirstHalfRange;
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const tools::Long nOffset = (nSliderPixelPerZoomPercent * nCurrentZoom) / 1000;
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nRect += nOffset;
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}
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else
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{
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nCurrentZoom = nCurrentZoom - gnSliderCenter;
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const tools::Long nSecondHalfRange = mnMaxZoom - gnSliderCenter;
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const tools::Long nSliderPixelPerZoomPercent = 1000 * nHalfSliderWidth / nSecondHalfRange;
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const tools::Long nOffset = (nSliderPixelPerZoomPercent * nCurrentZoom) / 1000;
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nRect += nHalfSliderWidth + nOffset;
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}
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return nRect;
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}
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ScZoomSliderWnd::ScZoomSliderWnd( vcl::Window* pParent,
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const css::uno::Reference< css::frame::XDispatchProvider >& rDispatchProvider,
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sal_uInt16 nCurrentZoom ):
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InterimItemWindow(pParent, u"modules/scalc/ui/zoombox.ui"_ustr, u"ZoomBox"_ustr),
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mxWidget(new ScZoomSlider(rDispatchProvider, nCurrentZoom)),
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mxPercentage(m_xBuilder->weld_label(u"current_zoom"_ustr)),
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mxLabel(m_xBuilder->weld_label(u"zoom_label"_ustr)),
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mxWeld(new weld::CustomWeld(*m_xBuilder, u"zoom"_ustr, *mxWidget))
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{
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Size aLogicalSize( 115, 40 );
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Size aSliderSize = LogicToPixel(aLogicalSize, MapMode(MapUnit::Map10thMM));
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Size aPreferredSize(aSliderSize.Width() * nSliderWidth-1, aSliderSize.Height() + nSliderHeight);
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mxWidget->GetDrawingArea()->set_size_request(aPreferredSize.Width(), aPreferredSize.Height());
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mxWidget->SetOutputSizePixel(aPreferredSize);
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mxWidget->SetSliderLength(aPreferredSize.Width() + nIncDecWidth);
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aPreferredSize.setWidth(aPreferredSize.Width() + mxLabel->get_pixel_size(mxLabel->get_label()).Width()
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+ mxPercentage->get_pixel_size(mxPercentage->get_label()).Width());
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SetSizePixel(aPreferredSize);
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OUString sCurrentZoom(unicode::formatPercent(nCurrentZoom, Application::GetSettings().GetUILanguageTag()));
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mxPercentage->set_label(sCurrentZoom);
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}
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ScZoomSliderWnd::~ScZoomSliderWnd()
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{
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disposeOnce();
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}
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void ScZoomSliderWnd::dispose()
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{
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mxWeld.reset();
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mxWidget.reset();
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InterimItemWindow::dispose();
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}
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ScZoomSlider::ScZoomSlider(css::uno::Reference< css::frame::XDispatchProvider> xDispatchProvider,
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sal_uInt16 nCurrentZoom)
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: mnSliderLength(0)
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, mnCurrentZoom(nCurrentZoom)
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, mnMinZoom(10)
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, mnMaxZoom(400)
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, mbOmitPaint(false)
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, m_xDispatchProvider(std::move(xDispatchProvider))
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{
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maSliderButton = Image(StockImage::Yes, RID_SVXBMP_SLIDERBUTTON);
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maIncreaseButton = Image(StockImage::Yes, RID_SVXBMP_SLIDERINCREASE);
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maDecreaseButton = Image(StockImage::Yes, RID_SVXBMP_SLIDERDECREASE);
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}
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bool ScZoomSlider::MouseButtonDown( const MouseEvent& rMEvt )
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{
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Size aSliderWindowSize = GetOutputSizePixel();
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const Point aPoint = rMEvt.GetPosPixel();
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const tools::Long nButtonLeftOffset = ( nSliderXOffset - nIncDecWidth )/2;
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const tools::Long nButtonRightOffset = ( nSliderXOffset + nIncDecWidth )/2;
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const tools::Long nOldZoom = mnCurrentZoom;
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// click to - button
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if ( aPoint.X() >= nButtonLeftOffset && aPoint.X() <= nButtonRightOffset )
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{
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mnCurrentZoom = mnCurrentZoom - 5;
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}
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// click to + button
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else if ( aPoint.X() >= GetSliderLength() - nSliderXOffset + nButtonLeftOffset &&
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aPoint.X() <= GetSliderLength() - nSliderXOffset + nButtonRightOffset )
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{
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mnCurrentZoom = mnCurrentZoom + 5;
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}
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else if( aPoint.X() >= nSliderXOffset && aPoint.X() <= GetSliderLength() - nSliderXOffset )
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{
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mnCurrentZoom = Offset2Zoom( aPoint.X() );
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}
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if( mnCurrentZoom < mnMinZoom )
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mnCurrentZoom = mnMinZoom;
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else if( mnCurrentZoom > mnMaxZoom )
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mnCurrentZoom = mnMaxZoom;
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if( nOldZoom == mnCurrentZoom )
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return true;
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tools::Rectangle aRect( Point( 0, 0 ), aSliderWindowSize );
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Invalidate(aRect);
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mbOmitPaint = true;
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SvxZoomSliderItem aZoomSliderItem( mnCurrentZoom );
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css::uno::Any a;
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aZoomSliderItem.QueryValue( a );
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css::uno::Sequence aArgs{ comphelper::makePropertyValue(u"ScalingFactor"_ustr, a) };
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SfxToolBoxControl::Dispatch( m_xDispatchProvider, u".uno:ScalingFactor"_ustr, aArgs );
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mbOmitPaint = false;
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return true;
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}
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bool ScZoomSlider::MouseMove( const MouseEvent& rMEvt )
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{
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Size aSliderWindowSize = GetOutputSizePixel();
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const tools::Long nControlWidth = GetSliderLength();
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const short nButtons = rMEvt.GetButtons();
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// check mouse move with button pressed
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if ( 1 == nButtons )
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{
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const Point aPoint = rMEvt.GetPosPixel();
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if ( aPoint.X() >= nSliderXOffset && aPoint.X() <= nControlWidth - nSliderXOffset )
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{
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mnCurrentZoom = Offset2Zoom( aPoint.X() );
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tools::Rectangle aRect(Point(0, 0), aSliderWindowSize);
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Invalidate(aRect);
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mbOmitPaint = true; // optimization: paint before executing command,
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// commit state change
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SvxZoomSliderItem aZoomSliderItem( mnCurrentZoom );
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css::uno::Any a;
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aZoomSliderItem.QueryValue( a );
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css::uno::Sequence aArgs{ comphelper::makePropertyValue(u"ScalingFactor"_ustr, a) };
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SfxToolBoxControl::Dispatch( m_xDispatchProvider, u".uno:ScalingFactor"_ustr, aArgs );
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mbOmitPaint = false;
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}
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}
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return false;
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}
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void ScZoomSliderWnd::UpdateFromItem( const SvxZoomSliderItem* pZoomSliderItem )
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{
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OUString sCurrentZoom(unicode::formatPercent(pZoomSliderItem->GetValue(), Application::GetSettings().GetUILanguageTag()));
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mxPercentage->set_label(sCurrentZoom);
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mxWidget->UpdateFromItem(pZoomSliderItem);
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}
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void ScZoomSlider::UpdateFromItem(const SvxZoomSliderItem* pZoomSliderItem)
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{
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if( pZoomSliderItem )
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{
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mnCurrentZoom = pZoomSliderItem->GetValue();
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mnMinZoom = pZoomSliderItem->GetMinZoom();
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mnMaxZoom = pZoomSliderItem->GetMaxZoom();
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OSL_ENSURE( mnMinZoom <= mnCurrentZoom &&
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mnMinZoom < gnSliderCenter &&
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mnMaxZoom >= mnCurrentZoom &&
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mnMaxZoom > gnSliderCenter,
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"Looks like the zoom slider item is corrupted" );
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const css::uno::Sequence < sal_Int32 >& rSnappingPoints = pZoomSliderItem->GetSnappingPoints();
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maSnappingPointOffsets.clear();
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maSnappingPointZooms.clear();
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// get all snapping points:
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std::set< sal_uInt16 > aTmpSnappingPoints;
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std::transform(rSnappingPoints.begin(), rSnappingPoints.end(), std::inserter(aTmpSnappingPoints, aTmpSnappingPoints.end()),
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[](const sal_Int32 nSnappingPoint) -> sal_uInt16 { return static_cast<sal_uInt16>(nSnappingPoint); });
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// remove snapping points that are too close to each other:
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tools::Long nLastOffset = 0;
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for ( const sal_uInt16 nCurrent : aTmpSnappingPoints )
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{
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const tools::Long nCurrentOffset = Zoom2Offset( nCurrent );
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if ( nCurrentOffset - nLastOffset >= nSnappingPointsMinDist )
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{
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maSnappingPointOffsets.push_back( nCurrentOffset );
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maSnappingPointZooms.push_back( nCurrent );
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nLastOffset = nCurrentOffset;
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}
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}
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}
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Size aSliderWindowSize = GetOutputSizePixel();
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tools::Rectangle aRect(Point(0, 0), aSliderWindowSize);
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if ( !mbOmitPaint )
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Invalidate(aRect);
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}
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void ScZoomSlider::Paint(vcl::RenderContext& rRenderContext, const tools::Rectangle& /*rRect*/)
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{
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DoPaint(rRenderContext);
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}
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void ScZoomSlider::DoPaint(vcl::RenderContext& rRenderContext)
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{
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if (mbOmitPaint)
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return;
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Size aSliderWindowSize(GetOutputSizePixel());
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tools::Rectangle aRect(Point(0, 0), aSliderWindowSize);
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ScopedVclPtrInstance< VirtualDevice > pVDev(rRenderContext);
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pVDev->SetOutputSizePixel(aSliderWindowSize);
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tools::Rectangle aSlider = aRect;
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aSlider.setWidth(GetSliderLength());
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aSlider.AdjustTop((aSliderWindowSize.Height() - nSliderHeight) / 2 - 1 );
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aSlider.SetBottom( aSlider.Top() + nSliderHeight );
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aSlider.AdjustLeft(nSliderXOffset );
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aSlider.AdjustRight( -nSliderXOffset );
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tools::Rectangle aFirstLine(aSlider);
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aFirstLine.SetBottom( aFirstLine.Top() );
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tools::Rectangle aSecondLine(aSlider);
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aSecondLine.SetTop( aSecondLine.Bottom() );
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tools::Rectangle aLeft(aSlider);
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aLeft.SetRight( aLeft.Left() );
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tools::Rectangle aRight(aSlider);
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aRight.SetLeft( aRight.Right() );
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// draw VirtualDevice's background color
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Color aStartColor = rRenderContext.GetSettings().GetStyleSettings().GetFaceColor();
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Color aEndColor = rRenderContext.GetSettings().GetStyleSettings().GetFaceColor();
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if (aEndColor.IsDark())
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aStartColor = aEndColor;
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Gradient aGradient;
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aGradient.SetAngle(0_deg10);
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aGradient.SetStyle(css::awt::GradientStyle_LINEAR);
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aGradient.SetStartColor(aStartColor);
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aGradient.SetEndColor(aEndColor);
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pVDev->DrawGradient(aRect, aGradient);
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// draw slider
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pVDev->SetLineColor(COL_WHITE);
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pVDev->DrawRect(aSecondLine);
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pVDev->DrawRect(aRight);
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pVDev->SetLineColor(COL_GRAY);
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pVDev->DrawRect(aFirstLine);
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pVDev->DrawRect(aLeft);
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// draw snapping points:
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for (const auto& rSnappingPointOffset : maSnappingPointOffsets)
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{
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pVDev->SetLineColor(COL_GRAY);
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tools::Rectangle aSnapping(aRect);
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aSnapping.SetBottom( aSlider.Top() );
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aSnapping.SetTop( aSnapping.Bottom() - nSnappingHeight );
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aSnapping.AdjustLeft(rSnappingPointOffset );
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aSnapping.SetRight( aSnapping.Left() );
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pVDev->DrawRect(aSnapping);
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aSnapping.AdjustTop(nSnappingHeight + nSliderHeight );
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aSnapping.AdjustBottom(nSnappingHeight + nSliderHeight );
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pVDev->DrawRect(aSnapping);
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}
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// draw slider button
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Point aImagePoint = aRect.TopLeft();
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aImagePoint.AdjustX(Zoom2Offset(mnCurrentZoom) );
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aImagePoint.AdjustX( -(nButtonWidth / 2) );
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aImagePoint.AdjustY( (aSliderWindowSize.Height() - nButtonHeight) / 2 );
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pVDev->DrawImage(aImagePoint, maSliderButton);
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// draw decrease button
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aImagePoint = aRect.TopLeft();
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aImagePoint.AdjustX((nSliderXOffset - nIncDecWidth) / 2 );
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aImagePoint.AdjustY((aSliderWindowSize.Height() - nIncDecHeight) / 2 );
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pVDev->DrawImage(aImagePoint, maDecreaseButton);
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// draw increase button
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aImagePoint.setX( aRect.Left() + GetSliderLength() - nIncDecWidth - (nSliderXOffset - nIncDecWidth) / 2 );
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pVDev->DrawImage(aImagePoint, maIncreaseButton);
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rRenderContext.DrawOutDev(Point(0, 0), aSliderWindowSize, Point(0, 0), aSliderWindowSize, *pVDev);
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}
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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