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kicad/pcbnew/footprint_preview_panel.cpp

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/*
* This program source code file is part of KiCad, a free EDA CAD application.
*
* Copyright (C) 2016-2017 KiCad Developers, see AUTHORS.txt for contributors.
* Copyright (C) 2017 Chris Pavlina <pavlina.chris@gmail.com>
* Copyright (C) 2016 Tomasz Wlostowski <tomasz.wlostowski@cern.ch>
*
* 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 3 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, see <http://www.gnu.org/licenses/>.
*/
#include <footprint_preview_panel.h>
#include <pcb_draw_panel_gal.h>
#include <kiface_i.h>
#include <kiway.h>
#include <io_mgr.h>
#include <fp_lib_table.h>
#include <view/view.h>
#include <math/box2.h>
#include <class_module.h>
#include <class_board.h>
#include <ki_mutex.h>
#include <draw_frame.h>
#include <boost/bind.hpp>
#include <utility>
#include <make_unique.h>
#include <colors_design_settings.h>
#include <pcb_edit_frame.h>
#include <wx/stattext.h>
#include <pgm_base.h>
#include <painter.h>
/**
* Threadsafe interface class between loader thread and panel class.
*/
class FP_THREAD_IFACE
{
using CACHE_ENTRY = FOOTPRINT_PREVIEW_PANEL::CACHE_ENTRY;
public:
/// Retrieve a cache entry by LIB_ID
OPT<CACHE_ENTRY> GetFromCache( LIB_ID const & aFPID )
{
MUTLOCK lock( m_lock );
auto it = m_cachedFootprints.find( aFPID );
if( it != m_cachedFootprints.end() )
return it->second;
else
return NULLOPT;
}
/**
* Push an entry to the loading queue and a placeholder to the cache;
* return the placeholder.
*/
CACHE_ENTRY AddToQueue( LIB_ID const & aEntry )
{
MUTLOCK lock( m_lock );
CACHE_ENTRY ent = { aEntry, NULL, FPS_LOADING };
m_cachedFootprints[aEntry] = ent;
m_loaderQueue.push_back( ent );
return ent;
}
/// Pop an entry from the queue, or empty option if none is available.
OPT<CACHE_ENTRY> PopFromQueue()
{
MUTLOCK lock( m_lock );
if( m_loaderQueue.empty() )
{
return NULLOPT;
}
else
{
auto ent = m_loaderQueue.front();
m_loaderQueue.pop_front();
return ent;
}
}
/// Add an entry to the cache.
void AddToCache( CACHE_ENTRY const & aEntry )
{
MUTLOCK lock( m_lock );
m_cachedFootprints[aEntry.fpid] = aEntry;
}
/**
* Threadsafe accessor to set the current footprint.
*/
void SetCurrentFootprint( LIB_ID aFp )
{
MUTLOCK lock( m_lock );
m_current_fp = std::move( aFp );
}
/**
* Threadsafe accessor to get the current footprint.
*/
LIB_ID GetCurrentFootprint()
{
MUTLOCK lock( m_lock );
return m_current_fp;
}
/**
* Set the associated panel, for QueueEvent() and GetTable().
*/
void SetPanel( FOOTPRINT_PREVIEW_PANEL* aPanel )
{
MUTLOCK lock( m_lock );
m_panel = aPanel;
}
/**
* Get the associated panel.
*/
FOOTPRINT_PREVIEW_PANEL* GetPanel()
{
MUTLOCK lock( m_lock );
return m_panel;
}
/**
* Post an event to the panel, if the panel still exists. Return whether
* the event was posted.
*/
bool QueueEvent( wxEvent const& aEvent )
{
MUTLOCK lock( m_lock );
if( m_panel )
{
m_panel->GetEventHandler()->QueueEvent( aEvent.Clone() );
return true;
}
else
{
return false;
}
}
/**
* Get an FP_LIB_TABLE, or null if the panel is dead.
*/
FP_LIB_TABLE* GetTable()
{
MUTLOCK locK( m_lock );
return m_panel ? m_panel->Prj().PcbFootprintLibs() : nullptr;
}
private:
std::deque<CACHE_ENTRY> m_loaderQueue;
std::map<LIB_ID, CACHE_ENTRY> m_cachedFootprints;
LIB_ID m_current_fp;
FOOTPRINT_PREVIEW_PANEL* m_panel = nullptr;
MUTEX m_lock;
};
/**
* Footprint loader thread to prevent footprint loading from locking the UI.
* Interface is via a FP_THREAD_IFACE.
*/
class FP_LOADER_THREAD: public wxThread
{
using CACHE_ENTRY = FOOTPRINT_PREVIEW_PANEL::CACHE_ENTRY;
std::shared_ptr<FP_THREAD_IFACE> m_iface;
public:
FP_LOADER_THREAD( std::shared_ptr<FP_THREAD_IFACE> const& aIface ):
wxThread( wxTHREAD_DETACHED ),
m_iface( aIface )
{}
~FP_LOADER_THREAD()
{}
void ProcessEntry( CACHE_ENTRY& aEntry )
{
FP_LIB_TABLE* fptbl = m_iface->GetTable();
if( !fptbl )
return;
aEntry.module = NULL;
try {
aEntry.module = fptbl->FootprintLoadWithOptionalNickname( aEntry.fpid );
if( !aEntry.module )
aEntry.status = FPS_NOT_FOUND;
} catch( const IO_ERROR& )
{
aEntry.status = FPS_NOT_FOUND;
}
if( aEntry.status != FPS_NOT_FOUND )
aEntry.status = FPS_READY;
m_iface->AddToCache( aEntry );
if( aEntry.fpid == m_iface->GetCurrentFootprint() )
{
wxCommandEvent evt( wxEVT_COMMAND_TEXT_UPDATED, 1 );
m_iface->QueueEvent( evt );
}
}
virtual void* Entry() override
{
while( m_iface->GetPanel() )
{
auto ent = m_iface->PopFromQueue();
if( ent )
ProcessEntry( *ent );
else
wxMilliSleep( 100 );
}
return nullptr;
}
};
FOOTPRINT_PREVIEW_PANEL::FOOTPRINT_PREVIEW_PANEL( KIWAY* aKiway, wxWindow* aParent,
std::unique_ptr<KIGFX::GAL_DISPLAY_OPTIONS> aOpts,
GAL_TYPE aGalType )
: PCB_DRAW_PANEL_GAL ( aParent, -1, wxPoint( 0, 0 ), wxSize(200, 200), *aOpts, aGalType ),
KIWAY_HOLDER( aKiway ),
m_DisplayOptions( std::move( aOpts ) ),
m_footprintDisplayed( true )
{
m_iface = std::make_shared<FP_THREAD_IFACE>();
m_iface->SetPanel( this );
m_loader = new FP_LOADER_THREAD( m_iface );
m_loader->Run();
SetStealsFocus( false );
ShowScrollbars( wxSHOW_SB_NEVER, wxSHOW_SB_NEVER );
EnableScrolling( false, false ); // otherwise Zoom Auto disables GAL canvas
m_dummyBoard = std::make_unique<BOARD>();
m_colorsSettings = std::make_unique<COLORS_DESIGN_SETTINGS>( FRAME_PCB_FOOTPRINT_PREVIEW );
m_colorsSettings->Load( Kiface().KifaceSettings() );
UseColorScheme( m_colorsSettings.get() );
SyncLayersVisibility( &*m_dummyBoard );
Raise();
Show( true );
StartDrawing();
Connect( wxEVT_COMMAND_TEXT_UPDATED, wxCommandEventHandler( FOOTPRINT_PREVIEW_PANEL::OnLoaderThreadUpdate ), NULL, this );
}
FOOTPRINT_PREVIEW_PANEL::~FOOTPRINT_PREVIEW_PANEL( )
{
m_iface->SetPanel( nullptr );
}
FOOTPRINT_PREVIEW_PANEL::CACHE_ENTRY FOOTPRINT_PREVIEW_PANEL::CacheAndReturn( const LIB_ID& aFPID )
{
auto opt_ent = m_iface->GetFromCache( aFPID );
if( opt_ent )
return *opt_ent;
else
return m_iface->AddToQueue( aFPID );
}
// This is separate to avoid having to export CACHE_ENTRY to the global namespace
void FOOTPRINT_PREVIEW_PANEL::CacheFootprint( LIB_ID const& aFPID )
{
(void) CacheAndReturn( aFPID );
}
void FOOTPRINT_PREVIEW_PANEL::renderFootprint( MODULE *module )
{
GetView()->Clear();
module->SetParent( &*m_dummyBoard );
GetView()->Add( module );
GetView()->SetVisible( module, true );
GetView()->Update( module, KIGFX::ALL );
BOX2I bbox = module->ViewBBox();
bbox.Merge ( module->Value().ViewBBox() );
bbox.Merge ( module->Reference().ViewBBox() );
if( bbox.GetSize().x > 0 && bbox.GetSize().y > 0 )
{
// Autozoom
GetView()->SetViewport( BOX2D( bbox.GetOrigin(), bbox.GetSize() ) );
// Add a margin
GetView()->SetScale( GetView()->GetScale() * 0.7 );
Refresh();
}
}
void FOOTPRINT_PREVIEW_PANEL::DisplayFootprint ( const LIB_ID& aFPID )
{
m_currentFPID = aFPID;
m_iface->SetCurrentFootprint( aFPID );
m_footprintDisplayed = false;
CACHE_ENTRY fpe = CacheAndReturn ( m_currentFPID );
if( m_handler )
m_handler( fpe.status );
if( fpe.status == FPS_READY )
{
if ( !m_footprintDisplayed )
{
renderFootprint( fpe.module );
m_footprintDisplayed = true;
Refresh();
}
}
}
void FOOTPRINT_PREVIEW_PANEL::OnLoaderThreadUpdate( wxCommandEvent& event )
{
DisplayFootprint( m_currentFPID );
}
void FOOTPRINT_PREVIEW_PANEL::SetStatusHandler( FOOTPRINT_STATUS_HANDLER aHandler )
{
m_handler = aHandler;
}
wxWindow* FOOTPRINT_PREVIEW_PANEL::GetWindow()
{
return static_cast<wxWindow*>( this );
}
FOOTPRINT_PREVIEW_PANEL* FOOTPRINT_PREVIEW_PANEL::New( KIWAY* aKiway, wxWindow* aParent )
{
PCB_EDIT_FRAME* pcbnew = static_cast<PCB_EDIT_FRAME*>( aKiway->Player( FRAME_PCB, false ) );
wxConfigBase* cfg = Kiface().KifaceSettings();
wxConfigBase* commonCfg = Pgm().CommonSettings();
bool btemp;
int itemp;
wxString msg;
COLOR4D ctemp;
// Fetch grid & display settings from PCBNew if it's running; otherwise fetch them
// from PCBNew's config settings.
// We need a copy with a lifetime that matches the panel
std::unique_ptr<KIGFX::GAL_DISPLAY_OPTIONS> gal_opts;
if( pcbnew )
{
// Copy the existing Pcbnew options
// REVIEW: This also copies the current subscription list of the options
// to the new options. This is probably not what is intended, but because
// this widget doesn't change the options it should be OK.
gal_opts = std::make_unique<KIGFX::GAL_DISPLAY_OPTIONS>( pcbnew->GetGalDisplayOptions() );
}
else
{
// Make and populate a new one from config
gal_opts = std::make_unique<KIGFX::GAL_DISPLAY_OPTIONS>();
gal_opts->ReadConfig( *commonCfg, *cfg, wxString( PCB_EDIT_FRAME_NAME ), aParent );
}
#ifdef __WXMAC__
// Cairo renderer doesn't handle Retina displays so default to OpenGL
EDA_DRAW_PANEL_GAL::GAL_TYPE canvasType = (EDA_DRAW_PANEL_GAL::GAL_TYPE)
cfg->ReadLong( CanvasTypeKeyBase, EDA_DRAW_PANEL_GAL::GAL_TYPE_OPENGL );
#else
EDA_DRAW_PANEL_GAL::GAL_TYPE canvasType = (EDA_DRAW_PANEL_GAL::GAL_TYPE)
cfg->ReadLong( CanvasTypeKeyBase, EDA_DRAW_PANEL_GAL::GAL_TYPE_CAIRO );
#endif
auto panel = new FOOTPRINT_PREVIEW_PANEL( aKiway, aParent, std::move( gal_opts ), canvasType );
if( pcbnew )
{
panel->GetGAL()->SetGridVisibility( pcbnew->IsGridVisible() );
panel->GetGAL()->SetGridSize( VECTOR2D( pcbnew->GetScreen()->GetGridSize() ) );
// Grid color (among other things):
KIGFX::PAINTER* pcbnew_painter = pcbnew->GetGalCanvas()->GetView()->GetPainter();
panel->GetView()->GetPainter()->ApplySettings( pcbnew_painter->GetSettings() );
}
else
{
btemp = cfg->ReadBool( wxString( PCB_EDIT_FRAME_NAME ) + ShowGridEntryKeyword, true );
panel->GetGAL()->SetGridVisibility( btemp );
// Read grid size:
std::unique_ptr<PCB_SCREEN> temp_screen = std::make_unique<PCB_SCREEN>( wxSize() );
cfg->Read( wxString( PCB_EDIT_FRAME_NAME ) + LastGridSizeIdKeyword, &itemp, 0L );
temp_screen->SetGrid( itemp + ID_POPUP_GRID_LEVEL_1000 );
panel->GetGAL()->SetGridSize( VECTOR2D( temp_screen->GetGridSize() ) );
// Read grid color:
msg = cfg->Read( wxString( PCB_EDIT_FRAME_NAME ) + GridColorEntryKeyword, wxT( "NONE" ) );
ctemp.SetFromWxString( msg );
panel->GetGAL()->SetGridColor( ctemp );
}
return panel;
}
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