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Diffstat (limited to 'svtools/source/table/gridtablerenderer.cxx')
| -rw-r--r-- | svtools/source/table/gridtablerenderer.cxx | 598 |
1 files changed, 598 insertions, 0 deletions
diff --git a/svtools/source/table/gridtablerenderer.cxx b/svtools/source/table/gridtablerenderer.cxx new file mode 100644 index 000000000..f814fc64d --- /dev/null +++ b/svtools/source/table/gridtablerenderer.cxx @@ -0,0 +1,598 @@ +/* -*- 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 "cellvalueconversion.hxx" +#include <table/gridtablerenderer.hxx> +#include <table/tablesort.hxx> + +#include <com/sun/star/graphic/XGraphic.hpp> + +#include <tools/debug.hxx> +#include <tools/diagnose_ex.h> +#include <vcl/window.hxx> +#include <vcl/image.hxx> +#include <vcl/virdev.hxx> +#include <vcl/decoview.hxx> +#include <vcl/settings.hxx> + + +namespace svt::table +{ + using ::css::uno::Any; + using ::css::uno::Reference; + using ::css::uno::UNO_QUERY; + using ::css::uno::XInterface; + using ::css::uno::TypeClass_INTERFACE; + using ::css::graphic::XGraphic; + using ::css::style::HorizontalAlignment; + using ::css::style::HorizontalAlignment_CENTER; + using ::css::style::HorizontalAlignment_RIGHT; + using ::css::style::VerticalAlignment; + using ::css::style::VerticalAlignment_MIDDLE; + using ::css::style::VerticalAlignment_BOTTOM; + + + //= CachedSortIndicator + + namespace { + + class CachedSortIndicator + { + public: + CachedSortIndicator() + : m_lastHeaderHeight( 0 ) + , m_lastArrowColor( COL_TRANSPARENT ) + { + } + + BitmapEx const & getBitmapFor(vcl::RenderContext const & i_device, tools::Long const i_headerHeight, + StyleSettings const & i_style, bool const i_sortAscending); + + private: + tools::Long m_lastHeaderHeight; + Color m_lastArrowColor; + BitmapEx m_sortAscending; + BitmapEx m_sortDescending; + }; + + } + + BitmapEx const & CachedSortIndicator::getBitmapFor(vcl::RenderContext const& i_device, tools::Long const i_headerHeight, + StyleSettings const & i_style, bool const i_sortAscending ) + { + BitmapEx& rBitmap(i_sortAscending ? m_sortAscending : m_sortDescending); + if (rBitmap.IsEmpty() || (i_headerHeight != m_lastHeaderHeight) || (i_style.GetActiveColor() != m_lastArrowColor)) + { + tools::Long const nSortIndicatorWidth = 2 * i_headerHeight / 3; + tools::Long const nSortIndicatorHeight = 2 * nSortIndicatorWidth / 3; + + Point const aBitmapPos( 0, 0 ); + Size const aBitmapSize( nSortIndicatorWidth, nSortIndicatorHeight ); + ScopedVclPtrInstance< VirtualDevice > aDevice(i_device, DeviceFormat::DEFAULT, + DeviceFormat::DEFAULT); + aDevice->SetOutputSizePixel( aBitmapSize ); + + DecorationView aDecoView(aDevice.get()); + aDecoView.DrawSymbol(tools::Rectangle(aBitmapPos, aBitmapSize), + i_sortAscending ? SymbolType::SPIN_UP : SymbolType::SPIN_DOWN, + i_style.GetActiveColor()); + + rBitmap = aDevice->GetBitmapEx(aBitmapPos, aBitmapSize); + m_lastHeaderHeight = i_headerHeight; + m_lastArrowColor = i_style.GetActiveColor(); + } + return rBitmap; + } + + + //= GridTableRenderer_Impl + + struct GridTableRenderer_Impl + { + ITableModel& rModel; + RowPos nCurrentRow; + bool bUseGridLines; + CachedSortIndicator aSortIndicator; + CellValueConversion aStringConverter; + + explicit GridTableRenderer_Impl( ITableModel& _rModel ) + : rModel( _rModel ) + , nCurrentRow( ROW_INVALID ) + , bUseGridLines( true ) + , aSortIndicator( ) + , aStringConverter() + { + } + }; + + + //= helper + + namespace + { + tools::Rectangle lcl_getContentArea( GridTableRenderer_Impl const & i_impl, tools::Rectangle const & i_cellArea ) + { + tools::Rectangle aContentArea( i_cellArea ); + if ( i_impl.bUseGridLines ) + { + aContentArea.AdjustRight( -1 ); + aContentArea.AdjustBottom( -1 ); + } + return aContentArea; + } + tools::Rectangle lcl_getTextRenderingArea( tools::Rectangle const & i_contentArea ) + { + tools::Rectangle aTextArea( i_contentArea ); + aTextArea.AdjustLeft(2 ); aTextArea.AdjustRight( -2 ); + aTextArea.AdjustTop( 1 ); aTextArea.AdjustBottom( -1 ); + return aTextArea; + } + + DrawTextFlags lcl_getAlignmentTextDrawFlags( GridTableRenderer_Impl const & i_impl, ColPos const i_columnPos ) + { + DrawTextFlags nVertFlag = DrawTextFlags::Top; + VerticalAlignment const eVertAlign = i_impl.rModel.getVerticalAlign(); + switch ( eVertAlign ) + { + case VerticalAlignment_MIDDLE: nVertFlag = DrawTextFlags::VCenter; break; + case VerticalAlignment_BOTTOM: nVertFlag = DrawTextFlags::Bottom; break; + default: + break; + } + + DrawTextFlags nHorzFlag = DrawTextFlags::Left; + HorizontalAlignment const eHorzAlign = i_impl.rModel.getColumnCount() > 0 + ? i_impl.rModel.getColumnModel( i_columnPos )->getHorizontalAlign() + : HorizontalAlignment_CENTER; + switch ( eHorzAlign ) + { + case HorizontalAlignment_CENTER: nHorzFlag = DrawTextFlags::Center; break; + case HorizontalAlignment_RIGHT: nHorzFlag = DrawTextFlags::Right; break; + default: + break; + } + + return nVertFlag | nHorzFlag; + } + + } + + + //= GridTableRenderer + + + GridTableRenderer::GridTableRenderer( ITableModel& _rModel ) + :m_pImpl( new GridTableRenderer_Impl( _rModel ) ) + { + } + + + GridTableRenderer::~GridTableRenderer() + { + } + + + bool GridTableRenderer::useGridLines() const + { + return m_pImpl->bUseGridLines; + } + + + void GridTableRenderer::useGridLines( bool const i_use ) + { + m_pImpl->bUseGridLines = i_use; + } + + + namespace + { + Color lcl_getEffectiveColor(std::optional<Color> const& i_modelColor, + StyleSettings const& i_styleSettings, + Color const& (StyleSettings::*i_getDefaultColor) () const) + { + if (!!i_modelColor) + return *i_modelColor; + return (i_styleSettings.*i_getDefaultColor)(); + } + } + + + void GridTableRenderer::PaintHeaderArea(vcl::RenderContext& rRenderContext, const tools::Rectangle& _rArea, + bool _bIsColHeaderArea, bool _bIsRowHeaderArea, const StyleSettings& _rStyle) + { + OSL_PRECOND(_bIsColHeaderArea || _bIsRowHeaderArea, "GridTableRenderer::PaintHeaderArea: invalid area flags!"); + + rRenderContext.Push(vcl::PushFlags::FILLCOLOR | vcl::PushFlags::LINECOLOR); + + Color const background = lcl_getEffectiveColor(m_pImpl->rModel.getHeaderBackgroundColor(), + _rStyle, &StyleSettings::GetDialogColor); + rRenderContext.SetFillColor(background); + + rRenderContext.SetLineColor(); + rRenderContext.DrawRect(_rArea); + + // delimiter lines at bottom/right + std::optional<Color> aLineColor(m_pImpl->rModel.getLineColor()); + Color const lineColor = !aLineColor ? _rStyle.GetSeparatorColor() : *aLineColor; + rRenderContext.SetLineColor(lineColor); + rRenderContext.DrawLine(_rArea.BottomLeft(), _rArea.BottomRight()); + rRenderContext.DrawLine(_rArea.BottomRight(), _rArea.TopRight()); + + rRenderContext.Pop(); + } + + + void GridTableRenderer::PaintColumnHeader( + ColPos _nCol, + vcl::RenderContext& rRenderContext, + const tools::Rectangle& _rArea, const StyleSettings& _rStyle) + { + rRenderContext.Push(vcl::PushFlags::LINECOLOR); + + OUString sHeaderText; + PColumnModel const pColumn = m_pImpl->rModel.getColumnModel( _nCol ); + DBG_ASSERT( pColumn, "GridTableRenderer::PaintColumnHeader: invalid column model object!" ); + if ( pColumn ) + sHeaderText = pColumn->getName(); + + Color const textColor = lcl_getEffectiveColor( m_pImpl->rModel.getTextColor(), _rStyle, &StyleSettings::GetFieldTextColor ); + rRenderContext.SetTextColor(textColor); + + tools::Rectangle const aTextRect( lcl_getTextRenderingArea( lcl_getContentArea( *m_pImpl, _rArea ) ) ); + DrawTextFlags nDrawTextFlags = lcl_getAlignmentTextDrawFlags( *m_pImpl, _nCol ) | DrawTextFlags::Clip; + if (!m_pImpl->rModel.isEnabled()) + nDrawTextFlags |= DrawTextFlags::Disable; + rRenderContext.DrawText( aTextRect, sHeaderText, nDrawTextFlags ); + + std::optional<Color> const aLineColor( m_pImpl->rModel.getLineColor() ); + Color const lineColor = !aLineColor ? _rStyle.GetSeparatorColor() : *aLineColor; + rRenderContext.SetLineColor( lineColor ); + rRenderContext.DrawLine( _rArea.BottomRight(), _rArea.TopRight()); + rRenderContext.DrawLine( _rArea.BottomLeft(), _rArea.BottomRight() ); + + // draw sort indicator if the model data is sorted by the given column + ITableDataSort const * pSortAdapter = m_pImpl->rModel.getSortAdapter(); + ColumnSort aCurrentSortOrder; + if ( pSortAdapter != nullptr ) + aCurrentSortOrder = pSortAdapter->getCurrentSortOrder(); + if ( aCurrentSortOrder.nColumnPos == _nCol ) + { + tools::Long const nHeaderHeight( _rArea.GetHeight() ); + BitmapEx const aIndicatorBitmap = m_pImpl->aSortIndicator.getBitmapFor(rRenderContext, nHeaderHeight, _rStyle, + aCurrentSortOrder.eSortDirection == ColumnSortAscending); + Size const aBitmapSize( aIndicatorBitmap.GetSizePixel() ); + tools::Long const nSortIndicatorPaddingX = 2; + tools::Long const nSortIndicatorPaddingY = ( nHeaderHeight - aBitmapSize.Height() ) / 2; + + if ( nDrawTextFlags & DrawTextFlags::Right ) + { + // text is right aligned => draw the sort indicator at the left hand side + rRenderContext.DrawBitmapEx(Point(_rArea.Left() + nSortIndicatorPaddingX, _rArea.Top() + nSortIndicatorPaddingY), + aIndicatorBitmap); + } + else + { + // text is left-aligned or centered => draw the sort indicator at the right hand side + rRenderContext.DrawBitmapEx(Point(_rArea.Right() - nSortIndicatorPaddingX - aBitmapSize.Width(), nSortIndicatorPaddingY), + aIndicatorBitmap); + } + } + + rRenderContext.Pop(); + } + + + void GridTableRenderer::PrepareRow(RowPos _nRow, bool i_hasControlFocus, bool _bSelected, vcl::RenderContext& rRenderContext, + const tools::Rectangle& _rRowArea, const StyleSettings& _rStyle) + { + // remember the row for subsequent calls to the other ->ITableRenderer methods + m_pImpl->nCurrentRow = _nRow; + + rRenderContext.Push(vcl::PushFlags::FILLCOLOR | vcl::PushFlags::LINECOLOR); + + Color backgroundColor = _rStyle.GetFieldColor(); + + Color const activeSelectionBackColor = lcl_getEffectiveColor(m_pImpl->rModel.getActiveSelectionBackColor(), + _rStyle, &StyleSettings::GetHighlightColor); + if (_bSelected) + { + // selected rows use the background color from the style + backgroundColor = i_hasControlFocus + ? activeSelectionBackColor + : lcl_getEffectiveColor(m_pImpl->rModel.getInactiveSelectionBackColor(), _rStyle, &StyleSettings::GetDeactiveColor); + } + else + { + std::optional< std::vector<Color> > aRowColors = m_pImpl->rModel.getRowBackgroundColors(); + if (!aRowColors) + { + // use alternating default colors + Color const fieldColor = _rStyle.GetFieldColor(); + if (_rStyle.GetHighContrastMode() || ((m_pImpl->nCurrentRow % 2) == 0)) + { + backgroundColor = fieldColor; + } + else + { + Color hilightColor = activeSelectionBackColor; + hilightColor.SetRed( 9 * ( fieldColor.GetRed() - hilightColor.GetRed() ) / 10 + hilightColor.GetRed() ); + hilightColor.SetGreen( 9 * ( fieldColor.GetGreen() - hilightColor.GetGreen() ) / 10 + hilightColor.GetGreen() ); + hilightColor.SetBlue( 9 * ( fieldColor.GetBlue() - hilightColor.GetBlue() ) / 10 + hilightColor.GetBlue() ); + backgroundColor = hilightColor; + } + } + else + { + if (aRowColors->empty()) + { + // all colors have the same background color + backgroundColor = _rStyle.GetFieldColor(); + } + else + { + backgroundColor = aRowColors->at(m_pImpl->nCurrentRow % aRowColors->size()); + } + } + } + + rRenderContext.SetLineColor(); + rRenderContext.SetFillColor(backgroundColor); + rRenderContext.DrawRect(_rRowArea); + + rRenderContext.Pop(); + } + + + void GridTableRenderer::PaintRowHeader(vcl::RenderContext& rRenderContext, + const tools::Rectangle& _rArea, const StyleSettings& _rStyle) + { + rRenderContext.Push( vcl::PushFlags::LINECOLOR | vcl::PushFlags::TEXTCOLOR ); + + std::optional<Color> const aLineColor( m_pImpl->rModel.getLineColor() ); + Color const lineColor = !aLineColor ? _rStyle.GetSeparatorColor() : *aLineColor; + rRenderContext.SetLineColor(lineColor); + rRenderContext.DrawLine(_rArea.BottomLeft(), _rArea.BottomRight()); + + Any const rowHeading( m_pImpl->rModel.getRowHeading( m_pImpl->nCurrentRow ) ); + OUString const rowTitle( m_pImpl->aStringConverter.convertToString( rowHeading ) ); + if (!rowTitle.isEmpty()) + { + Color const textColor = lcl_getEffectiveColor(m_pImpl->rModel.getHeaderTextColor(), + _rStyle, &StyleSettings::GetFieldTextColor); + rRenderContext.SetTextColor(textColor); + + tools::Rectangle const aTextRect(lcl_getTextRenderingArea(lcl_getContentArea(*m_pImpl, _rArea))); + DrawTextFlags nDrawTextFlags = lcl_getAlignmentTextDrawFlags(*m_pImpl, 0) | DrawTextFlags::Clip; + if (!m_pImpl->rModel.isEnabled()) + nDrawTextFlags |= DrawTextFlags::Disable; + // TODO: is using the horizontal alignment of the 0'th column a good idea here? This is pretty ... arbitrary .. + rRenderContext.DrawText(aTextRect, rowTitle, nDrawTextFlags); + } + + rRenderContext.Pop(); + } + + + struct GridTableRenderer::CellRenderContext + { + OutputDevice& rDevice; + tools::Rectangle const aContentArea; + StyleSettings const & rStyle; + ColPos const nColumn; + bool const bSelected; + bool const bHasControlFocus; + + CellRenderContext( OutputDevice& i_device, tools::Rectangle const & i_contentArea, + StyleSettings const & i_style, ColPos const i_column, bool const i_selected, bool const i_hasControlFocus ) + :rDevice( i_device ) + ,aContentArea( i_contentArea ) + ,rStyle( i_style ) + ,nColumn( i_column ) + ,bSelected( i_selected ) + ,bHasControlFocus( i_hasControlFocus ) + { + } + }; + + + void GridTableRenderer::PaintCell(ColPos const i_column, bool _bSelected, bool i_hasControlFocus, + vcl::RenderContext& rRenderContext, const tools::Rectangle& _rArea, const StyleSettings& _rStyle) + { + rRenderContext.Push(vcl::PushFlags::LINECOLOR | vcl::PushFlags::FILLCOLOR); + + tools::Rectangle const aContentArea(lcl_getContentArea(*m_pImpl, _rArea)); + CellRenderContext const aCellRenderContext(rRenderContext, aContentArea, _rStyle, i_column, _bSelected, i_hasControlFocus); + impl_paintCellContent(aCellRenderContext); + + if ( m_pImpl->bUseGridLines ) + { + ::std::optional< ::Color > aLineColor( m_pImpl->rModel.getLineColor() ); + ::Color lineColor = !aLineColor ? _rStyle.GetSeparatorColor() : *aLineColor; + + if ( _bSelected && !aLineColor ) + { + // if no line color is specified by the model, use the usual selection color for lines in selected cells + lineColor = i_hasControlFocus + ? lcl_getEffectiveColor( m_pImpl->rModel.getActiveSelectionBackColor(), _rStyle, &StyleSettings::GetHighlightColor ) + : lcl_getEffectiveColor( m_pImpl->rModel.getInactiveSelectionBackColor(), _rStyle, &StyleSettings::GetDeactiveColor ); + } + + rRenderContext.SetLineColor( lineColor ); + rRenderContext.DrawLine( _rArea.BottomLeft(), _rArea.BottomRight() ); + rRenderContext.DrawLine( _rArea.BottomRight(), _rArea.TopRight() ); + } + + rRenderContext.Pop(); + } + + + void GridTableRenderer::impl_paintCellImage( CellRenderContext const & i_context, Image const & i_image ) + { + Point imagePos( Point( i_context.aContentArea.Left(), i_context.aContentArea.Top() ) ); + Size imageSize = i_image.GetSizePixel(); + if ( i_context.aContentArea.GetWidth() > imageSize.Width() ) + { + const HorizontalAlignment eHorzAlign = m_pImpl->rModel.getColumnModel( i_context.nColumn )->getHorizontalAlign(); + switch ( eHorzAlign ) + { + case HorizontalAlignment_CENTER: + imagePos.AdjustX(( i_context.aContentArea.GetWidth() - imageSize.Width() ) / 2 ); + break; + case HorizontalAlignment_RIGHT: + imagePos.setX( i_context.aContentArea.Right() - imageSize.Width() ); + break; + default: + break; + } + + } + else + imageSize.setWidth( i_context.aContentArea.GetWidth() ); + + if ( i_context.aContentArea.GetHeight() > imageSize.Height() ) + { + const VerticalAlignment eVertAlign = m_pImpl->rModel.getVerticalAlign(); + switch ( eVertAlign ) + { + case VerticalAlignment_MIDDLE: + imagePos.AdjustY(( i_context.aContentArea.GetHeight() - imageSize.Height() ) / 2 ); + break; + case VerticalAlignment_BOTTOM: + imagePos.setY( i_context.aContentArea.Bottom() - imageSize.Height() ); + break; + default: + break; + } + } + else + imageSize.setHeight( i_context.aContentArea.GetHeight() - 1 ); + DrawImageFlags const nStyle = m_pImpl->rModel.isEnabled() ? DrawImageFlags::NONE : DrawImageFlags::Disable; + i_context.rDevice.DrawImage( imagePos, imageSize, i_image, nStyle ); + } + + + void GridTableRenderer::impl_paintCellContent( CellRenderContext const & i_context ) + { + Any aCellContent; + m_pImpl->rModel.getCellContent( i_context.nColumn, m_pImpl->nCurrentRow, aCellContent ); + + if ( aCellContent.getValueTypeClass() == TypeClass_INTERFACE ) + { + Reference< XInterface > const xContentInterface( aCellContent, UNO_QUERY ); + if ( !xContentInterface.is() ) + // allowed. kind of. + return; + + Reference< XGraphic > const xGraphic( aCellContent, UNO_QUERY ); + ENSURE_OR_RETURN_VOID( xGraphic.is(), "GridTableRenderer::impl_paintCellContent: only XGraphic interfaces (or NULL) are supported for painting." ); + + const Image aImage( xGraphic ); + impl_paintCellImage( i_context, aImage ); + return; + } + + const OUString sText( m_pImpl->aStringConverter.convertToString( aCellContent ) ); + impl_paintCellText( i_context, sText ); + } + + + void GridTableRenderer::impl_paintCellText( CellRenderContext const & i_context, OUString const & i_text ) + { + if ( i_context.bSelected ) + { + ::Color const textColor = i_context.bHasControlFocus + ? lcl_getEffectiveColor( m_pImpl->rModel.getActiveSelectionTextColor(), i_context.rStyle, &StyleSettings::GetHighlightTextColor ) + : lcl_getEffectiveColor( m_pImpl->rModel.getInactiveSelectionTextColor(), i_context.rStyle, &StyleSettings::GetDeactiveTextColor ); + i_context.rDevice.SetTextColor( textColor ); + } + else + { + ::Color const textColor = lcl_getEffectiveColor( m_pImpl->rModel.getTextColor(), i_context.rStyle, &StyleSettings::GetFieldTextColor ); + i_context.rDevice.SetTextColor( textColor ); + } + + tools::Rectangle const textRect( lcl_getTextRenderingArea( i_context.aContentArea ) ); + DrawTextFlags nDrawTextFlags = lcl_getAlignmentTextDrawFlags( *m_pImpl, i_context.nColumn ) | DrawTextFlags::Clip; + if ( !m_pImpl->rModel.isEnabled() ) + nDrawTextFlags |= DrawTextFlags::Disable; + i_context.rDevice.DrawText( textRect, i_text, nDrawTextFlags ); + } + + + void GridTableRenderer::ShowCellCursor( vcl::Window& _rView, const tools::Rectangle& _rCursorRect) + { + _rView.ShowFocus( _rCursorRect ); + } + + + void GridTableRenderer::HideCellCursor( vcl::Window& _rView ) + { + _rView.HideFocus(); + } + + + bool GridTableRenderer::FitsIntoCell( Any const & i_cellContent, + OutputDevice& i_targetDevice, tools::Rectangle const & i_targetArea ) const + { + if ( !i_cellContent.hasValue() ) + return true; + + if ( i_cellContent.getValueTypeClass() == TypeClass_INTERFACE ) + { + Reference< XInterface > const xContentInterface( i_cellContent, UNO_QUERY ); + if ( !xContentInterface.is() ) + return true; + + Reference< XGraphic > const xGraphic( i_cellContent, UNO_QUERY ); + if ( xGraphic.is() ) + // for the moment, assume it fits. We can always scale it down during painting ... + return true; + + OSL_ENSURE( false, "GridTableRenderer::FitsIntoCell: only XGraphic interfaces (or NULL) are supported for painting." ); + return true; + } + + OUString const sText( m_pImpl->aStringConverter.convertToString( i_cellContent ) ); + if ( sText.isEmpty() ) + return true; + + tools::Rectangle const aTargetArea( lcl_getTextRenderingArea( lcl_getContentArea( *m_pImpl, i_targetArea ) ) ); + + tools::Long const nTextHeight = i_targetDevice.GetTextHeight(); + if ( nTextHeight > aTargetArea.GetHeight() ) + return false; + + tools::Long const nTextWidth = i_targetDevice.GetTextWidth( sText ); + return nTextWidth <= aTargetArea.GetWidth(); + } + + + bool GridTableRenderer::GetFormattedCellString( Any const & i_cellValue, OUString & o_cellString ) const + { + o_cellString = m_pImpl->aStringConverter.convertToString( i_cellValue ); + + return true; + } + + +} // namespace svt::table + + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |