316 lines
9.4 KiB
C++
316 lines
9.4 KiB
C++
/*
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* This program source code file is part of KiCad, a free EDA CAD application.
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*
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* Copyright (C) 2018-2021 KiCad Developers, see AUTHORS.txt for contributors.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 3
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, you may find one here:
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* http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
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* or you may search the http://www.gnu.org website for the version 2 license,
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* or you may write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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#include <wx/tokenzr.h>
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#include <wx/dc.h>
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#include <widgets/wx_grid.h>
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#include <widgets/ui_common.h>
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#include <algorithm>
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#define MIN_GRIDCELL_MARGIN 3
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WX_GRID::WX_GRID( wxWindow *parent, wxWindowID id, const wxPoint& pos, const wxSize& size,
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long style, const wxString& name ) :
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wxGrid( parent, id, pos, size, style, name ),
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m_weOwnTable( false )
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{
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SetDefaultCellOverflow( false );
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// Make sure the GUI font scales properly on GTK
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SetDefaultCellFont( KIUI::GetControlFont( this ) );
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}
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WX_GRID::~WX_GRID()
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{
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if( m_weOwnTable )
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DestroyTable( GetTable() );
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}
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void WX_GRID::SetColLabelSize( int aHeight )
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{
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if( aHeight == 0 )
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{
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wxGrid::SetColLabelSize( 0 );
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return;
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}
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wxFont headingFont = KIUI::GetControlFont( this ).Bold();
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// Make sure the GUI font scales properly on GTK
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SetLabelFont( headingFont );
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// Correct wxFormBuilder height for large fonts
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int minHeight = headingFont.GetPixelSize().y + 2 * MIN_GRIDCELL_MARGIN;
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wxGrid::SetColLabelSize( std::max( aHeight, minHeight ) );
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}
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void WX_GRID::SetTable( wxGridTableBase* aTable, bool aTakeOwnership )
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{
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// wxGrid::SetTable() messes up the column widths from wxFormBuilder so we have to save
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// and restore them.
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int numberCols = GetNumberCols();
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int* formBuilderColWidths = new int[numberCols];
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for( int i = 0; i < numberCols; ++i )
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formBuilderColWidths[ i ] = GetColSize( i );
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wxGrid::SetTable( aTable );
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// wxGrid::SetTable() may change the number of columns, so prevent out-of-bounds access
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// to formBuilderColWidths
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numberCols = std::min( numberCols, GetNumberCols() );
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for( int i = 0; i < numberCols; ++i )
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{
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// correct wxFormBuilder width for large fonts and/or long translations
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int headingWidth = GetTextExtent( GetColLabelValue( i ) ).x + 2 * MIN_GRIDCELL_MARGIN;
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SetColSize( i, std::max( formBuilderColWidths[ i ], headingWidth ) );
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}
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delete[] formBuilderColWidths;
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Connect( wxEVT_GRID_COL_MOVE, wxGridEventHandler( WX_GRID::onGridColMove ), nullptr, this );
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m_weOwnTable = aTakeOwnership;
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}
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void WX_GRID::DestroyTable( wxGridTableBase* aTable )
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{
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// wxGrid's destructor will crash trying to look up the cell attr if the edit control
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// is left open. Normally it's closed in Validate(), but not if the user hit Cancel.
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CommitPendingChanges( true /* quiet mode */ );
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Disconnect( wxEVT_GRID_COL_MOVE, wxGridEventHandler( WX_GRID::onGridColMove ), nullptr, this );
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wxGrid::SetTable( nullptr );
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delete aTable;
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}
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wxString WX_GRID::GetShownColumns()
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{
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wxString shownColumns;
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for( int i = 0; i < GetNumberCols(); ++i )
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{
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if( IsColShown( i ) )
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{
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if( shownColumns.Length() )
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shownColumns << wxT( " " );
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shownColumns << i;
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}
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}
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return shownColumns;
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}
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void WX_GRID::ShowHideColumns( const wxString& shownColumns )
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{
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for( int i = 0; i < GetNumberCols(); ++i )
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HideCol( i );
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wxStringTokenizer shownTokens( shownColumns );
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while( shownTokens.HasMoreTokens() )
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{
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long colNumber;
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shownTokens.GetNextToken().ToLong( &colNumber );
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if( colNumber >= 0 && colNumber < GetNumberCols() )
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ShowCol( colNumber );
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}
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}
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void WX_GRID::DrawColLabel( wxDC& dc, int col )
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{
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if( GetColWidth( col ) <= 0 || m_colLabelHeight <= 0 )
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return;
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int colLeft = GetColLeft( col );
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wxRect rect( colLeft, 0, GetColWidth( col ), m_colLabelHeight );
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static wxGridColumnHeaderRendererDefault rend;
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// It is reported that we need to erase the background to avoid display
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// artifacts, see #12055.
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// wxWidgets renamed this variable between 3.1.2 and 3.1.3 ...
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#if wxCHECK_VERSION( 3, 1, 3 )
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wxDCBrushChanger setBrush( dc, m_colLabelWin->GetBackgroundColour() );
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#else
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wxDCBrushChanger setBrush( dc, m_colWindow->GetBackgroundColour() );
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#endif
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dc.DrawRectangle(rect);
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rend.DrawBorder( *this, dc, rect );
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// Make sure fonts get scaled correctly on GTK HiDPI monitors
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dc.SetFont( GetLabelFont() );
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int hAlign, vAlign;
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GetColLabelAlignment( &hAlign, &vAlign );
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const int orient = GetColLabelTextOrientation();
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if( col == 0 && GetRowLabelSize() == 0 )
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hAlign = wxALIGN_LEFT;
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rend.DrawLabel( *this, dc, GetColLabelValue( col ), rect, hAlign, vAlign, orient );
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}
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bool WX_GRID::CommitPendingChanges( bool aQuietMode )
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{
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if( !IsCellEditControlEnabled() )
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return true;
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if( !aQuietMode && SendEvent( wxEVT_GRID_EDITOR_HIDDEN ) == -1 )
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return false;
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HideCellEditControl();
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// do it after HideCellEditControl()
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m_cellEditCtrlEnabled = false;
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int row = m_currentCellCoords.GetRow();
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int col = m_currentCellCoords.GetCol();
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wxString oldval = GetCellValue( row, col );
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wxString newval;
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wxGridCellAttr* attr = GetCellAttr( row, col );
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wxGridCellEditor* editor = attr->GetEditor( this, row, col );
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bool changed = editor->EndEdit( row, col, this, oldval, &newval );
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editor->DecRef();
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attr->DecRef();
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if( changed )
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{
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if( !aQuietMode && SendEvent( wxEVT_GRID_CELL_CHANGING, newval ) == -1 )
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return false;
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editor->ApplyEdit( row, col, this );
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// for compatibility reasons dating back to wx 2.8 when this event
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// was called wxEVT_GRID_CELL_CHANGE and wxEVT_GRID_CELL_CHANGING
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// didn't exist we allow vetoing this one too
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if( !aQuietMode && SendEvent( wxEVT_GRID_CELL_CHANGED, oldval ) == -1 )
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{
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// Event has been vetoed, set the data back.
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SetCellValue( row, col, oldval );
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return false;
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}
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}
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return true;
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}
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void WX_GRID::onGridColMove( wxGridEvent& aEvent )
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{
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// wxWidgets won't move an open editor, so better just to close it
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CommitPendingChanges( true );
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}
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int WX_GRID::GetVisibleWidth( int aCol, bool aHeader, bool aContents, bool aKeep )
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{
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int size = 0;
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if( aCol < 0 )
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{
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if( aKeep )
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size = GetRowLabelSize();
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// The 1.1 scale factor is due to the fact row labels use a bold font, bigger than
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// the normal font.
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// TODO: use a better way to evaluate the text size, for bold font
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for( int row = 0; aContents && row < GetNumberRows(); row++ )
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size = std::max( size, int( GetTextExtent( GetRowLabelValue( row ) + "M" ).x * 1.1 ) );
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}
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else
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{
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if( aKeep )
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size = GetColSize( aCol );
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// 'M' is generally the widest character, so we buffer the column width by default to
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// ensure we don't write a continuous line of text at the column header
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if( aHeader )
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{
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EnsureColLabelsVisible();
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// The 1.1 scale factor is due to the fact headers use a bold font, bigger than
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// the normal font.
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size = std::max( size, int( GetTextExtent( GetColLabelValue( aCol ) + "M" ).x * 1.1 ) );
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}
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for( int row = 0; aContents && row < GetNumberRows(); row++ )
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{
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// If we have text, get the size. Otherwise, use a placeholder for the checkbox
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if( GetTable()->CanGetValueAs( row, aCol, wxGRID_VALUE_STRING ) )
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size = std::max( size, GetTextExtent( GetCellValue( row, aCol ) + "M" ).x );
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else
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size = std::max( size, GetTextExtent( "MM" ).x );
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}
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}
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return size;
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}
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void WX_GRID::EnsureColLabelsVisible()
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{
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// The 1.1 scale factor is due to the fact row labels use a bold font, bigger than
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// the normal font
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// TODO: use a better way to evaluate the text size, for bold font
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int line_height = int( GetTextExtent( "Mj" ).y * 1.1 ) + 3;
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int row_height = GetColLabelSize();
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// Headers can be multiline. Fix the Column Label Height to show the full header
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// However GetTextExtent does not work on multiline strings,
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// and do not return the full text height (only the height of one line)
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for( int col = 0; col < GetNumberCols(); col++ )
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{
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int nl_count = GetColLabelValue( col ).Freq( '\n' );
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if( nl_count )
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{
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// Col Label height must be able to show nl_count+1 lines
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if( row_height < line_height * ( nl_count+1 ) )
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row_height += line_height * nl_count;
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}
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}
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SetColLabelSize( row_height );
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}
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