layer_box_selector.cpp

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/*
 * This program source code file is part of KiCad, a free EDA CAD application.
 *
 * Copyright (C) 2014 Jean-Pierre Charras, jp.charras at wanadoo.fr
 * Copyright (C) 2014-2021 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 <wx/dcmemory.h>
#include <wx/odcombo.h>
#include <wx/menuitem.h>
 
#include <gal/dpi_scaling.h>
#include <layer_ids.h>
#include <widgets/layer_box_selector.h>
 
 
LAYER_SELECTOR::LAYER_SELECTOR()
{
 m_layerhotkeys = true;
}
 
 
bool LAYER_SELECTOR::SetLayersHotkeys( bool value )
{
 m_layerhotkeys = value;
 return m_layerhotkeys;
}
 
 
void LAYER_SELECTOR::DrawColorSwatch( wxBitmap& aLayerbmp, const COLOR4D& aBackground,
 const COLOR4D& aColor )
{
 wxMemoryDC bmpDC;
 wxBrush brush;
 
 // Prepare Bitmap
 bmpDC.SelectObject( aLayerbmp );
 
 brush.SetStyle( wxBRUSHSTYLE_SOLID );
 
 if( aBackground != COLOR4D::UNSPECIFIED )
 {
 brush.SetColour( aBackground.WithAlpha( 1.0 ).ToColour() );
 bmpDC.SetBrush( brush );
 bmpDC.DrawRectangle( 0, 0, aLayerbmp.GetWidth(), aLayerbmp.GetHeight() );
 }
 
 brush.SetColour( aColor.ToColour() );
 bmpDC.SetBrush( brush );
 bmpDC.DrawRectangle( 0, 0, aLayerbmp.GetWidth(), aLayerbmp.GetHeight() );
 
 bmpDC.SetBrush( *wxTRANSPARENT_BRUSH );
 bmpDC.SetPen( *wxBLACK_PEN );
 bmpDC.DrawRectangle( 0, 0, aLayerbmp.GetWidth(), aLayerbmp.GetHeight() );
}
 
 
LAYER_BOX_SELECTOR::LAYER_BOX_SELECTOR( wxWindow* parent, wxWindowID id, const wxPoint& pos,
 const wxSize& size, int n, const wxString choices[] ) :
 wxBitmapComboBox( parent, id, wxEmptyString, pos, size, n, choices, wxCB_READONLY ),
 LAYER_SELECTOR()
{
 if( choices != nullptr )
 ResyncBitmapOnly();
 
 GetParent()->Connect( wxEVT_CHAR_HOOK, wxKeyEventHandler( LAYER_BOX_SELECTOR::onKeyDown ),
 nullptr, this );
}
 
 
LAYER_BOX_SELECTOR::LAYER_BOX_SELECTOR( wxWindow* parent, wxWindowID id, const wxPoint& pos,
 const wxSize& size, const wxArrayString& choices ) :
 wxBitmapComboBox( parent, id, wxEmptyString, pos, size, choices, wxCB_READONLY ),
 LAYER_SELECTOR()
{
 if( !choices.IsEmpty() )
 ResyncBitmapOnly();
 
 GetParent()->Connect( wxEVT_CHAR_HOOK, wxKeyEventHandler( LAYER_BOX_SELECTOR::onKeyDown ),
 nullptr, this );
}
 
 
LAYER_BOX_SELECTOR::~LAYER_BOX_SELECTOR()
{
 GetParent()->Disconnect( wxEVT_CHAR_HOOK, wxKeyEventHandler( LAYER_BOX_SELECTOR::onKeyDown ),
 nullptr, this );
}
 
 
int LAYER_BOX_SELECTOR::GetLayerSelection() const
{
 if( GetSelection() < 0 )
 return UNDEFINED_LAYER;
 
 return (int)(intptr_t) GetClientData( GetSelection() );
}
 
 
int LAYER_BOX_SELECTOR::SetLayerSelection( int layer )
{
 for( int i = 0; i < (int) GetCount(); i++ )
 {
 if( GetClientData( (unsigned) i ) == (void*)(intptr_t) layer )
 {
 if( GetSelection() != i ) // Element (i) is not selected
 {
 SetSelection( i );
 return i;
 }
 else
 {
 return i; // If element already selected; do nothing
 }
 }
 }
 
 // Not Found
 SetSelection( -1 );
 return -1;
}
 
 
void LAYER_BOX_SELECTOR::ResyncBitmapOnly()
{
 DPI_SCALING dpi( nullptr, this );
 int size = static_cast<int>( dpi.GetScaleFactor() * 14 );
 
 for( int i = 0; i < (int) GetCount(); ++i )
 {
 wxBitmap layerbmp( size, size );
 DrawColorSwatch( layerbmp, getLayerColor( LAYER_PCB_BACKGROUND ), getLayerColor( i ) );
 }
}
 
 
void LAYER_BOX_SELECTOR::onKeyDown( wxKeyEvent& aEvent )
{
#ifdef __WXOSX_MAC__
 if( aEvent.GetKeyCode() == WXK_ESCAPE && IsPopupShown() )
 {
 Dismiss();
 return;
 }
#endif
 
 aEvent.Skip();
}