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kicad/common/grid_tricks.cpp

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/*
* This program source code file is part of KiCad, a free EDA CAD application.
*
* Copyright (C) 2012 SoftPLC Corporation, Dick Hollenbeck <dick@softplc.com>
* Copyright (C) 2012-18 KiCad Developers, see change_log.txt for contributors.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, you may find one here:
* http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
* or you may search the http://www.gnu.org website for the version 2 license,
* or you may write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include <fctsys.h>
#include <grid_tricks.h>
#include <wx/tokenzr.h>
#include <wx/clipbrd.h>
#include <widgets/grid_readonly_text_helpers.h>
// It works for table data on clipboard for an Excell spreadsheet,
// why not us too for now.
#define COL_SEP wxT( '\t' )
#define ROW_SEP wxT( '\n' )
GRID_TRICKS::GRID_TRICKS( wxGrid* aGrid ):
m_grid( aGrid )
{
m_sel_row_start = 0;
m_sel_col_start = 0;
m_sel_row_count = 0;
m_sel_col_count = 0;
m_showEditorOnMouseUp = false;
aGrid->Connect( wxEVT_GRID_CELL_LEFT_CLICK, wxGridEventHandler( GRID_TRICKS::onGridCellLeftClick ), NULL, this );
aGrid->Connect( wxEVT_GRID_CELL_LEFT_DCLICK, wxGridEventHandler( GRID_TRICKS::onGridCellLeftDClick ), NULL, this );
aGrid->Connect( wxEVT_GRID_CELL_RIGHT_CLICK, wxGridEventHandler( GRID_TRICKS::onGridCellRightClick ), NULL, this );
aGrid->Connect( wxEVT_GRID_LABEL_RIGHT_CLICK, wxGridEventHandler( GRID_TRICKS::onGridLabelRightClick ), NULL, this );
aGrid->Connect( GRIDTRICKS_FIRST_ID, GRIDTRICKS_LAST_ID, wxEVT_COMMAND_MENU_SELECTED, wxCommandEventHandler( GRID_TRICKS::onPopupSelection ), NULL, this );
aGrid->Connect( wxEVT_KEY_DOWN, wxKeyEventHandler( GRID_TRICKS::onKeyDown ), NULL, this );
aGrid->GetGridWindow()->Connect( wxEVT_LEFT_UP, wxMouseEventHandler( GRID_TRICKS::onMouseUp ), NULL, this );
aGrid->Connect( wxEVT_UPDATE_UI, wxUpdateUIEventHandler( GRID_TRICKS::onUpdateUI ), NULL, this );
}
bool GRID_TRICKS::toggleCell( int aRow, int aCol )
{
auto renderer = m_grid->GetCellRenderer( aRow, aCol );
bool isCheckbox = ( dynamic_cast<wxGridCellBoolRenderer*>( renderer ) != nullptr );
renderer->DecRef();
if( isCheckbox )
{
m_grid->SetGridCursor( aRow, aCol );
wxGridTableBase* model = m_grid->GetTable();
if( model->CanGetValueAs( aRow, aCol, wxGRID_VALUE_BOOL )
&& model->CanSetValueAs( aRow, aCol, wxGRID_VALUE_BOOL ))
{
model->SetValueAsBool( aRow, aCol, !model->GetValueAsBool( aRow, aCol ));
}
else // fall back to string processing
{
if( model->GetValue( aRow, aCol ) == wxT( "1" ) )
model->SetValue( aRow, aCol, wxT( "0" ) );
else
model->SetValue( aRow, aCol, wxT( "1" ) );
}
// Mac needs this for the keyboard events; Linux appears to always need it.
m_grid->ForceRefresh();
// Let any clients know
wxGridEvent event( m_grid->GetId(), wxEVT_GRID_CELL_CHANGED, m_grid, aRow, aCol );
event.SetString( model->GetValue( aRow, aCol ) );
m_grid->GetEventHandler()->ProcessEvent( event );
return true;
}
return false;
}
bool GRID_TRICKS::showEditor( int aRow, int aCol )
{
m_grid->SetGridCursor( aRow, aCol );
if( m_grid->IsEditable() && !m_grid->IsReadOnly( aRow, aCol ) )
{
if( m_grid->GetSelectionMode() == wxGrid::wxGridSelectRows )
m_grid->SelectRow( aRow );
// For several reasons we can't enable the control here. There's the whole
// SetInSetFocus() issue/hack in wxWidgets, and there's also wxGrid's MouseUp
// handler which doesn't notice it's processing a MouseUp until after it has
// disabled the editor yet again. So we wait for the MouseUp.
m_showEditorOnMouseUp = true;
return true;
}
return false;
}
void GRID_TRICKS::onGridCellLeftClick( wxGridEvent& aEvent )
{
int row = aEvent.GetRow();
int col = aEvent.GetCol();
// Activate editor only if a cursor is placed on the clicked cell
if( !aEvent.GetModifiers() &&
m_grid->GetGridCursorRow() == row &&
m_grid->GetGridCursorCol() == col )
{
if( toggleCell( row, col ) )
return;
if( showEditor( row, col ) )
return;
}
aEvent.Skip();
}
void GRID_TRICKS::onGridCellLeftDClick( wxGridEvent& aEvent )
{
if( !handleDoubleClick( aEvent ) )
onGridCellLeftClick( aEvent );
}
void GRID_TRICKS::onMouseUp( wxMouseEvent& aEvent )
{
if( m_showEditorOnMouseUp )
{
// Some wxGridCellEditors don't have the SetInSetFocus() hack. Even when they do,
// it sometimes fails. Activating the control here seems to avoid those issues.
m_showEditorOnMouseUp = false;
// Mouse button can be pressed on one cell but be released on another
// cell (when range of cells is selecting, for example).
// So it must be checked.
wxGridCellCoords curCell = wxGridCellCoords( m_grid->GetGridCursorRow(),
m_grid->GetGridCursorCol() );
wxGridCellCoords eventCell = m_grid->XYToCell( m_grid->CalcUnscrolledPosition( aEvent.GetPosition() ) );
if( eventCell == curCell && m_grid->CanEnableCellControl() )
{
// Yes, the first of these also shows the control. Well, at least sometimes.
// The second call corrects those (as yet undefined) "other times".
m_grid->EnableCellEditControl();
m_grid->ShowCellEditControl();
return;
}
}
aEvent.Skip();
}
bool GRID_TRICKS::handleDoubleClick( wxGridEvent& aEvent )
{
// Double-click processing must be handled by specific sub-classes
return false;
}
void GRID_TRICKS::getSelectedArea()
{
wxGridCellCoordsArray topLeft = m_grid->GetSelectionBlockTopLeft();
wxGridCellCoordsArray botRight = m_grid->GetSelectionBlockBottomRight();
wxArrayInt cols = m_grid->GetSelectedCols();
wxArrayInt rows = m_grid->GetSelectedRows();
if( topLeft.Count() && botRight.Count() )
{
m_sel_row_start = topLeft[0].GetRow();
m_sel_col_start = topLeft[0].GetCol();
m_sel_row_count = botRight[0].GetRow() - m_sel_row_start + 1;
m_sel_col_count = botRight[0].GetCol() - m_sel_col_start + 1;
}
else if( cols.Count() )
{
m_sel_col_start = cols[0];
m_sel_col_count = cols.Count();
m_sel_row_start = 0;
m_sel_row_count = m_grid->GetNumberRows();
}
else if( rows.Count() )
{
m_sel_col_start = 0;
m_sel_col_count = m_grid->GetNumberCols();
m_sel_row_start = rows[0];
m_sel_row_count = rows.Count();
}
else
{
m_sel_row_start = m_grid->GetGridCursorRow();
m_sel_col_start = m_grid->GetGridCursorCol();
m_sel_row_count = m_sel_row_start >= 0 ? 1 : 0;
m_sel_col_count = m_sel_col_start >= 0 ? 1 : 0;
}
}
void GRID_TRICKS::onGridCellRightClick( wxGridEvent& )
{
wxMenu menu;
showPopupMenu( menu );
}
void GRID_TRICKS::onGridLabelRightClick( wxGridEvent& )
{
wxMenu menu;
for( int i = 0; i < m_grid->GetNumberCols(); ++i )
{
int id = GRIDTRICKS_FIRST_SHOWHIDE + i;
menu.AppendCheckItem( id, m_grid->GetColLabelValue( i ) );
menu.Check( id, m_grid->IsColShown( i ) );
}
m_grid->PopupMenu( &menu );
}
void GRID_TRICKS::showPopupMenu( wxMenu& menu )
{
menu.Append( GRIDTRICKS_ID_CUT, _( "Cut\tCTRL+X" ), _( "Clear selected cells placing original contents on clipboard" ) );
menu.Append( GRIDTRICKS_ID_COPY, _( "Copy\tCTRL+C" ), _( "Copy selected cells to clipboard" ) );
menu.Append( GRIDTRICKS_ID_PASTE, _( "Paste\tCTRL+V" ), _( "Paste clipboard cells to matrix at current cell" ) );
menu.Append( GRIDTRICKS_ID_SELECT, _( "Select All\tCTRL+A" ), _( "Select all cells" ) );
getSelectedArea();
// if nothing is selected, disable cut and copy.
if( !m_sel_row_count && !m_sel_col_count )
{
menu.Enable( GRIDTRICKS_ID_CUT, false );
menu.Enable( GRIDTRICKS_ID_COPY, false );
}
menu.Enable( GRIDTRICKS_ID_PASTE, false );
if( wxTheClipboard->Open() )
{
if( wxTheClipboard->IsSupported( wxDF_TEXT ) )
menu.Enable( GRIDTRICKS_ID_PASTE, true );
wxTheClipboard->Close();
}
m_grid->PopupMenu( &menu );
}
void GRID_TRICKS::onPopupSelection( wxCommandEvent& event )
{
doPopupSelection( event );
}
void GRID_TRICKS::doPopupSelection( wxCommandEvent& event )
{
int menu_id = event.GetId();
// assume getSelectedArea() was called by rightClickPopupMenu() and there's
// no way to have gotten here without that having been called.
switch( menu_id )
{
case GRIDTRICKS_ID_CUT:
case GRIDTRICKS_ID_COPY:
cutcopy( menu_id == GRIDTRICKS_ID_CUT );
break;
case GRIDTRICKS_ID_PASTE:
paste_clipboard();
break;
case GRIDTRICKS_ID_SELECT:
m_grid->SelectAll();
break;
default:
if( menu_id >= GRIDTRICKS_FIRST_SHOWHIDE )
{
int col = menu_id - GRIDTRICKS_FIRST_SHOWHIDE;
if( m_grid->IsColShown( col ) )
m_grid->HideCol( col );
else
m_grid->ShowCol( col );
}
}
}
void GRID_TRICKS::onKeyDown( wxKeyEvent& ev )
{
if( isCtl( 'A', ev ) )
{
m_grid->SelectAll();
return;
}
else if( isCtl( 'C', ev ) )
{
getSelectedArea();
cutcopy( false );
return;
}
else if( isCtl( 'V', ev ) )
{
getSelectedArea();
paste_clipboard();
return;
}
else if( isCtl( 'X', ev ) )
{
getSelectedArea();
cutcopy( true );
return;
}
// space-bar toggling of checkboxes
if( ev.GetKeyCode() == ' ' )
{
int row = m_grid->GetGridCursorRow();
int col = m_grid->GetGridCursorCol();
if( m_grid->IsVisible( row, col ) && toggleCell( row, col ) )
return;
}
// shift-return for OK
if( ev.GetKeyCode() == WXK_RETURN && ev.ShiftDown() )
{
wxPostEvent( this, wxCommandEvent( wxEVT_COMMAND_BUTTON_CLICKED, wxID_OK ) );
return;
}
ev.Skip( true );
}
void GRID_TRICKS::paste_clipboard()
{
if( wxTheClipboard->Open() )
{
if( wxTheClipboard->IsSupported( wxDF_TEXT ) )
{
wxTextDataObject data;
wxTheClipboard->GetData( data );
paste_text( data.GetText() );
}
wxTheClipboard->Close();
m_grid->ForceRefresh();
}
}
void GRID_TRICKS::paste_text( const wxString& cb_text )
{
wxGridTableBase* tbl = m_grid->GetTable();
const int cur_row = m_grid->GetGridCursorRow();
const int cur_col = m_grid->GetGridCursorCol();
int start_row;
int end_row;
int start_col;
int end_col;
bool is_selection = false;
if( cur_row < 0 || cur_col < 0 )
{
wxBell();
return;
}
if( m_grid->GetSelectionMode() == wxGrid::wxGridSelectRows )
{
if( m_sel_row_count > 1 )
is_selection = true;
}
else
{
if( m_grid->IsSelection() )
is_selection = true;
}
wxStringTokenizer rows( cb_text, ROW_SEP, wxTOKEN_RET_EMPTY );
// If selection of cells is present
// then a clipboard pastes to selected cells only.
if( is_selection )
{
start_row = m_sel_row_start;
end_row = m_sel_row_start + m_sel_row_count;
start_col = m_sel_col_start;
end_col = m_sel_col_start + m_sel_col_count;
}
// Otherwise, paste whole clipboard
// starting from cell with cursor.
else
{
start_row = cur_row;
end_row = cur_row + rows.CountTokens();
if( end_row > tbl->GetNumberRows() )
end_row = tbl->GetNumberRows();
start_col = cur_col;
end_col = start_col; // end_col actual value calculates later
}
for( int row = start_row; row < end_row; ++row )
{
// If number of selected rows bigger than count of rows in
// the clipboard, paste from the clipboard again and again
// while end of the selection is reached.
if( !rows.HasMoreTokens() )
rows.SetString( cb_text, ROW_SEP, wxTOKEN_RET_EMPTY );
wxString rowTxt = rows.GetNextToken();
wxStringTokenizer cols( rowTxt, COL_SEP, wxTOKEN_RET_EMPTY );
if( !is_selection )
{
end_col = cur_col + cols.CountTokens();
if( end_col > tbl->GetNumberCols() )
end_col = tbl->GetNumberCols();
}
for( int col = start_col; col < end_col; ++col )
{
// If number of selected columns bigger than count of columns in
// the clipboard, paste from the clipboard again and again while
// end of the selection is reached.
if( !cols.HasMoreTokens() )
cols.SetString( rowTxt, COL_SEP, wxTOKEN_RET_EMPTY );
wxString cellTxt = cols.GetNextToken();
tbl->SetValue( row, col, cellTxt );
}
}
}
void GRID_TRICKS::cutcopy( bool doCut )
{
if( wxTheClipboard->Open() )
{
wxGridTableBase* tbl = m_grid->GetTable();
wxString txt;
// fill txt with a format that is compatible with most spreadsheets
for( int row = m_sel_row_start; row < m_sel_row_start + m_sel_row_count; ++row )
{
for( int col = m_sel_col_start; col < m_sel_col_start + m_sel_col_count; ++col )
{
txt += tbl->GetValue( row, col );
if( col < m_sel_col_start + m_sel_col_count - 1 ) // that was not last column
txt += COL_SEP;
if( doCut )
tbl->SetValue( row, col, wxEmptyString );
}
txt += ROW_SEP;
}
wxTheClipboard->SetData( new wxTextDataObject( txt ) );
wxTheClipboard->Close();
if( doCut )
m_grid->ForceRefresh();
}
}
void GRID_TRICKS::onUpdateUI( wxUpdateUIEvent& event )
{
// Respect ROW selectionMode when moving cursor
if( m_grid->GetSelectionMode() == wxGrid::wxGridSelectRows )
{
int cursorRow = m_grid->GetGridCursorRow();
bool cursorInSelectedRow = false;
for( int row : m_grid->GetSelectedRows() )
{
if( row == cursorRow )
{
cursorInSelectedRow = true;
break;
}
}
if( !cursorInSelectedRow )
m_grid->SelectRow( cursorRow );
}
}
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