grid_color_swatch_helpers.cpp

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/*
 * This program source code file is part of KiCad, a free EDA CAD application.
 *
 * Copyright (C) 2018-2020 KiCad Developers, see AUTHORS.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 <widgets/grid_color_swatch_helpers.h>

#include <settings/color_settings.h>
#include <dialogs/dialog_color_picker.h>
#include <wx/checkbox.h>
#include <wx/dc.h>


//-------- Custom wxGridCellRenderers --------------------------------------------------


GRID_CELL_COLOR_RENDERER::GRID_CELL_COLOR_RENDERER( wxWindow* aParent, SWATCH_SIZE aSize,
 const KIGFX::COLOR4D& aBackground ) :
 wxGridCellRenderer(),
 m_parent( aParent ),
 m_background( aBackground )
{
 switch( aSize )
 {
 case SWATCH_MEDIUM: m_size = m_parent->ConvertDialogToPixels( SWATCH_SIZE_MEDIUM_DU ); break;
 case SWATCH_SMALL: m_size = m_parent->ConvertDialogToPixels( SWATCH_SIZE_SMALL_DU ); break;
 case SWATCH_LARGE: m_size = m_parent->ConvertDialogToPixels( SWATCH_SIZE_LARGE_DU ); break;
 case SWATCH_EXPAND: m_size = wxDefaultSize; break;
 }

 m_checkerboardSize = m_parent->ConvertDialogToPixels( CHECKERBOARD_SIZE_DU );
 m_checkerboardBg = m_parent->GetBackgroundColour();
}


GRID_CELL_COLOR_RENDERER::GRID_CELL_COLOR_RENDERER( const GRID_CELL_COLOR_RENDERER& aOther )
{
 m_parent = aOther.m_parent;
 m_background = aOther.m_background;
 m_size = aOther.m_size;
 m_checkerboardSize = aOther.m_checkerboardSize;
 m_checkerboardBg = aOther.m_checkerboardBg;
}


GRID_CELL_COLOR_RENDERER::~GRID_CELL_COLOR_RENDERER()
{
}


wxGridCellRenderer* GRID_CELL_COLOR_RENDERER::Clone() const
{
 return new GRID_CELL_COLOR_RENDERER( *this );
}


wxSize GRID_CELL_COLOR_RENDERER::GetBestSize( wxGrid& grid, wxGridCellAttr& attr, wxDC& dc,
 int row, int col )
{
 if( m_size != wxDefaultSize )
 return m_size;

 wxSize bestSize;

 dc.SetFont( attr.GetFont() );
 dc.GetTextExtent( "WWW", &bestSize.x, &bestSize.y );

 return bestSize;
}


void GRID_CELL_COLOR_RENDERER::Draw( wxGrid& aGrid, wxGridCellAttr& aAttr, wxDC& aDC,
 const wxRect& aRect, int aRow, int aCol, bool isSelected )
{
 wxRect rect = aRect;

 // erase background
 wxGridCellRenderer::Draw( aGrid, aAttr, aDC, aRect, aRow, aCol, isSelected );

 // draw the swatch
 COLOR4D color( aGrid.GetTable()->GetValue( aRow, aCol ) );
 wxSize size = ( m_size == wxDefaultSize ) ? aRect.GetSize() : m_size;
 wxBitmap bitmap = COLOR_SWATCH::MakeBitmap( color, m_background, size, m_checkerboardSize,
 m_checkerboardBg );

 wxPoint origin = rect.GetTopLeft();

 if( m_size != wxDefaultSize )
 {
 int x = std::max( 0, ( aRect.GetWidth() - m_size.x ) / 2 );
 int y = std::max( 0, ( aRect.GetHeight() - m_size.y ) / 2 );
 origin += wxPoint( x, y );
 }

 aDC.DrawBitmap( bitmap, origin, true );
}



//-------- Custom wxGridCellEditors ----------------------------------------------------
//
// Note: this implementation is an adaptation of wxGridCellBoolEditor


GRID_CELL_COLOR_SELECTOR::GRID_CELL_COLOR_SELECTOR( wxWindow* aParent, wxGrid* aGrid ) :
 m_parent( aParent ),
 m_grid( aGrid ),
 m_value( COLOR4D::UNSPECIFIED )
{
}


wxGridCellEditor* GRID_CELL_COLOR_SELECTOR::Clone() const
{
 return new GRID_CELL_COLOR_SELECTOR( m_parent, m_grid );
}


void GRID_CELL_COLOR_SELECTOR::Create( wxWindow* aParent, wxWindowID aId,
 wxEvtHandler* aEventHandler )
{
 // wxWidgets needs a control to hold on to the event handler
 m_control = new wxCheckBox( aParent, wxID_ANY, wxEmptyString );

 wxGridCellEditor::Create( aParent, aId, aEventHandler );
}


wxString GRID_CELL_COLOR_SELECTOR::GetValue() const
{
 return m_value.ToWxString( wxC2S_CSS_SYNTAX );
}


void GRID_CELL_COLOR_SELECTOR::BeginEdit( int row, int col, wxGrid* grid )
{
 m_value.SetFromWxString( grid->GetTable()->GetValue( row, col ) );

 DIALOG_COLOR_PICKER dialog( m_parent, m_value, false );

 if( dialog.ShowModal() == wxID_OK )
 m_value = dialog.GetColor();

 m_grid->GetTable()->SetValue( row, col, GetValue() );

 // That's it; we're all done
 m_grid->HideCellEditControl();
 m_grid->ForceRefresh();
}


bool GRID_CELL_COLOR_SELECTOR::EndEdit( int row, int col, const wxGrid* grid,
 const wxString& oldval, wxString *newval )
{
 if ( newval )
 *newval = GetValue();

 return true;
}


void GRID_CELL_COLOR_SELECTOR::ApplyEdit( int aRow, int aCol, wxGrid* aGrid )
{
 aGrid->GetTable()->SetValue( aRow, aCol, GetValue() );
}


void GRID_CELL_COLOR_SELECTOR::Reset()
{
}