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kicad/eeschema/sch_screen.cpp

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/*
* This program source code file is part of KiCad, a free EDA CAD application.
*
* Copyright (C) 2013 Jean-Pierre Charras, jp.charras at wanadoo.fr
* Copyright (C) 2012 SoftPLC Corporation, Dick Hollenbeck <dick@softplc.com>
* Copyright (C) 2008-2013 Wayne Stambaugh <stambaughw@verizon.net>
* Copyright (C) 1992-2013 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
*/
/**
* @file sch_screen.cpp
* @brief Implementation of SCH_SCREEN and SCH_SCREENS classes.
*/
#include <fctsys.h>
#include <gr_basic.h>
#include <common.h>
#include <kicad_string.h>
#include <eeschema_id.h>
#include <pgm_base.h>
#include <class_drawpanel.h>
#include <sch_item_struct.h>
#include <wxEeschemaStruct.h>
#include <plot_common.h>
#include <netlist.h>
#include <class_netlist_object.h>
#include <class_library.h>
#include <sch_junction.h>
#include <sch_bus_entry.h>
#include <sch_line.h>
#include <sch_marker.h>
#include <sch_no_connect.h>
#include <sch_sheet.h>
#include <sch_component.h>
#include <sch_text.h>
#include <lib_pin.h>
#include <boost/foreach.hpp>
#define EESCHEMA_FILE_STAMP "EESchema"
/* Default Eeschema zoom values. Limited to 17 values to keep a decent size
* to menus
*/
/* Please, note: wxMSW before version 2.9 seems have
* problems with zoom values < 1 ( i.e. userscale > 1) and needs to be patched:
* edit file <wxWidgets>/src/msw/dc.cpp
* search for line static const int VIEWPORT_EXTENT = 1000;
* and replace by static const int VIEWPORT_EXTENT = 10000;
* see http://trac.wxwidgets.org/ticket/9554
* This is a workaround that is not a full fix, but remaining artifacts are acceptable
*/
static double SchematicZoomList[] =
{
0.5, 0.7, 1.0, 1.5, 2.0, 3.0, 4.0, 6.0, 8.0,
12.0, 16.0, 23.0, 32.0, 48.0, 64.0, 80.0, 128.0
};
#define MM_TO_SCH_UNITS 1000.0 / 25.4 //schematic internal unites are mils
/* Default grid sizes for the schematic editor.
* Do NOT add others values (mainly grid values in mm),
* because they can break the schematic:
* because wires and pins are considered as connected when the are to the same coordinate
* we cannot mix coordinates in mils (internal units) and mm
* (that cannot exactly converted in mils in many cases
* in fact schematic must only use 50 and 25 mils to place labels, wires and components
* others values are useful only for graphic items (mainly in library editor)
* so use integer values in mils only.
*/
static GRID_TYPE SchematicGridList[] = {
{ ID_POPUP_GRID_LEVEL_50, wxRealPoint( 50, 50 ) },
{ ID_POPUP_GRID_LEVEL_25, wxRealPoint( 25, 25 ) },
{ ID_POPUP_GRID_LEVEL_10, wxRealPoint( 10, 10 ) },
{ ID_POPUP_GRID_LEVEL_5, wxRealPoint( 5, 5 ) },
{ ID_POPUP_GRID_LEVEL_2, wxRealPoint( 2, 2 ) },
{ ID_POPUP_GRID_LEVEL_1, wxRealPoint( 1, 1 ) },
};
SCH_SCREEN::SCH_SCREEN( KIWAY* aKiway ) :
BASE_SCREEN( SCH_SCREEN_T ),
KIWAY_HOLDER( aKiway ),
m_paper( wxT( "A4" ) )
{
SetZoom( 32 );
for( unsigned i = 0; i < DIM( SchematicZoomList ); i++ )
m_ZoomList.push_back( SchematicZoomList[i] );
for( unsigned i = 0; i < DIM( SchematicGridList ); i++ )
AddGrid( SchematicGridList[i] );
SetGrid( wxRealPoint( 50, 50 ) ); // Default grid size.
m_refCount = 0;
// Suitable for schematic only. For libedit and viewlib, must be set to true
m_Center = false;
InitDataPoints( m_paper.GetSizeIU() );
}
SCH_SCREEN::~SCH_SCREEN()
{
ClearUndoRedoList();
FreeDrawList();
}
void SCH_SCREEN::IncRefCount()
{
m_refCount++;
}
void SCH_SCREEN::DecRefCount()
{
wxCHECK_RET( m_refCount != 0,
wxT( "Screen reference count already zero. Bad programmer!" ) );
m_refCount--;
}
void SCH_SCREEN::Clear()
{
FreeDrawList();
// Clear the project settings
m_ScreenNumber = m_NumberOfScreens = 1;
m_titles.Clear();
}
void SCH_SCREEN::FreeDrawList()
{
m_drawList.DeleteAll();
}
void SCH_SCREEN::Remove( SCH_ITEM* aItem )
{
m_drawList.Remove( aItem );
}
void SCH_SCREEN::DeleteItem( SCH_ITEM* aItem )
{
wxCHECK_RET( aItem, wxT( "Cannot delete invalid item from screen." ) );
SetModify();
if( aItem->Type() == SCH_SHEET_PIN_T )
{
// This structure is attached to a sheet, get the parent sheet object.
SCH_SHEET_PIN* sheetPin = (SCH_SHEET_PIN*) aItem;
SCH_SHEET* sheet = sheetPin->GetParent();
wxCHECK_RET( sheet,
wxT( "Sheet label parent not properly set, bad programmer!" ) );
sheet->RemovePin( sheetPin );
return;
}
else
{
delete m_drawList.Remove( aItem );
}
}
bool SCH_SCREEN::CheckIfOnDrawList( SCH_ITEM* aItem )
{
SCH_ITEM* itemList = m_drawList.begin();
while( itemList )
{
if( itemList == aItem )
return true;
itemList = itemList->Next();
}
return false;
}
SCH_ITEM* SCH_SCREEN::GetItem( const wxPoint& aPosition, int aAccuracy, KICAD_T aType ) const
{
for( SCH_ITEM* item = m_drawList.begin(); item; item = item->Next() )
{
if( item->HitTest( aPosition, aAccuracy ) && (aType == NOT_USED) )
return item;
if( (aType == SCH_FIELD_T) && (item->Type() == SCH_COMPONENT_T) )
{
SCH_COMPONENT* component = (SCH_COMPONENT*) item;
for( int i = REFERENCE; i < component->GetFieldCount(); i++ )
{
SCH_FIELD* field = component->GetField( i );
if( field->HitTest( aPosition, aAccuracy ) )
return (SCH_ITEM*) field;
}
}
else if( (aType == SCH_SHEET_PIN_T) && (item->Type() == SCH_SHEET_T) )
{
SCH_SHEET* sheet = (SCH_SHEET*)item;
SCH_SHEET_PIN* label = sheet->GetPin( aPosition );
if( label )
return (SCH_ITEM*) label;
}
else if( (item->Type() == aType) && item->HitTest( aPosition, aAccuracy ) )
{
return item;
}
}
return NULL;
}
void SCH_SCREEN::ExtractWires( DLIST< SCH_ITEM >& aList, bool aCreateCopy )
{
SCH_ITEM* item;
SCH_ITEM* next_item;
for( item = m_drawList.begin(); item; item = next_item )
{
next_item = item->Next();
switch( item->Type() )
{
case SCH_JUNCTION_T:
case SCH_LINE_T:
m_drawList.Remove( item );
aList.Append( item );
if( aCreateCopy )
m_drawList.Insert( (SCH_ITEM*) item->Clone(), next_item );
break;
default:
break;
}
}
}
void SCH_SCREEN::ReplaceWires( DLIST< SCH_ITEM >& aWireList )
{
SCH_ITEM* item;
SCH_ITEM* next_item;
for( item = m_drawList.begin(); item; item = next_item )
{
next_item = item->Next();
switch( item->Type() )
{
case SCH_JUNCTION_T:
case SCH_LINE_T:
Remove( item );
delete item;
break;
default:
break;
}
}
m_drawList.Append( aWireList );
}
void SCH_SCREEN::MarkConnections( SCH_LINE* aSegment )
{
wxCHECK_RET( (aSegment) && (aSegment->Type() == SCH_LINE_T),
wxT( "Invalid object pointer." ) );
for( SCH_ITEM* item = m_drawList.begin(); item; item = item->Next() )
{
if( item->GetFlags() & CANDIDATE )
continue;
if( item->Type() == SCH_JUNCTION_T )
{
SCH_JUNCTION* junction = (SCH_JUNCTION*) item;
if( aSegment->IsEndPoint( junction->GetPosition() ) )
item->SetFlags( CANDIDATE );
continue;
}
if( item->Type() != SCH_LINE_T )
continue;
SCH_LINE* segment = (SCH_LINE*) item;
if( aSegment->IsEndPoint( segment->GetStartPoint() )
&& !GetPin( segment->GetStartPoint(), NULL, true ) )
{
item->SetFlags( CANDIDATE );
MarkConnections( segment );
}
if( aSegment->IsEndPoint( segment->GetEndPoint() )
&& !GetPin( segment->GetEndPoint(), NULL, true ) )
{
item->SetFlags( CANDIDATE );
MarkConnections( segment );
}
}
}
bool SCH_SCREEN::IsJunctionNeeded( const wxPoint& aPosition )
{
if( GetItem( aPosition, 0, SCH_JUNCTION_T ) )
return false;
if( GetWire( aPosition, 0, EXCLUDE_END_POINTS_T ) )
{
if( GetWire( aPosition, 0, END_POINTS_ONLY_T ) )
return true;
if( GetPin( aPosition, NULL, true ) )
return true;
}
return false;
}
bool SCH_SCREEN::IsTerminalPoint( const wxPoint& aPosition, int aLayer )
{
wxCHECK_MSG( aLayer == LAYER_NOTES || aLayer == LAYER_BUS || aLayer == LAYER_WIRE, false,
wxT( "Invalid layer type passed to SCH_SCREEN::IsTerminalPoint()." ) );
SCH_SHEET_PIN* label;
SCH_TEXT* text;
switch( aLayer )
{
case LAYER_BUS:
if( GetBus( aPosition ) )
return true;
label = GetSheetLabel( aPosition );
if( label && IsBusLabel( label->GetText() ) && label->IsConnected( aPosition ) )
return true;
text = GetLabel( aPosition );
if( text && IsBusLabel( text->GetText() ) && text->IsConnected( aPosition )
&& (text->Type() != SCH_LABEL_T) )
return true;
break;
case LAYER_NOTES:
if( GetLine( aPosition ) )
return true;
break;
case LAYER_WIRE:
if( GetItem( aPosition, std::max( GetDefaultLineThickness(), 3 ), SCH_BUS_WIRE_ENTRY_T) )
return true;
if( GetItem( aPosition, std::max( GetDefaultLineThickness(), 3 ), SCH_BUS_BUS_ENTRY_T) )
return true;
if( GetItem( aPosition, std::max( GetDefaultLineThickness(), 3 ), SCH_JUNCTION_T ) )
return true;
if( GetPin( aPosition, NULL, true ) )
return true;
if( GetWire( aPosition ) )
return true;
text = GetLabel( aPosition );
if( text && text->IsConnected( aPosition ) && !IsBusLabel( text->GetText() ) )
return true;
label = GetSheetLabel( aPosition );
if( label && label->IsConnected( aPosition ) && !IsBusLabel( label->GetText() ) )
return true;
break;
default:
break;
}
return false;
}
bool SCH_SCREEN::SchematicCleanUp( EDA_DRAW_PANEL* aCanvas, wxDC* aDC )
{
SCH_ITEM* item, * testItem;
bool modified = false;
item = m_drawList.begin();
for( ; item; item = item->Next() )
{
if( ( item->Type() != SCH_LINE_T ) && ( item->Type() != SCH_JUNCTION_T ) )
continue;
testItem = item->Next();
while( testItem )
{
if( ( item->Type() == SCH_LINE_T ) && ( testItem->Type() == SCH_LINE_T ) )
{
SCH_LINE* line = (SCH_LINE*) item;
if( line->MergeOverlap( (SCH_LINE*) testItem ) )
{
// Keep the current flags, because the deleted segment can be flagged.
item->SetFlags( testItem->GetFlags() );
DeleteItem( testItem );
testItem = m_drawList.begin();
modified = true;
}
else
{
testItem = testItem->Next();
}
}
else if ( ( ( item->Type() == SCH_JUNCTION_T ) && ( testItem->Type() == SCH_JUNCTION_T ) ) && ( testItem != item ) )
{
if ( testItem->HitTest( item->GetPosition() ) )
{
// Keep the current flags, because the deleted segment can be flagged.
item->SetFlags( testItem->GetFlags() );
DeleteItem( testItem );
testItem = m_drawList.begin();
modified = true;
}
else
{
testItem = testItem->Next();
}
}
else
{
testItem = testItem->Next();
}
}
}
TestDanglingEnds( aCanvas, aDC );
if( aCanvas && modified )
aCanvas->Refresh();
return modified;
}
bool SCH_SCREEN::Save( FILE* aFile ) const
{
// Creates header
if( fprintf( aFile, "%s %s %d\n", EESCHEMA_FILE_STAMP,
SCHEMATIC_HEAD_STRING, EESCHEMA_VERSION ) < 0 )
return false;
BOOST_FOREACH( const PART_LIB& lib, *Prj().SchLibs() )
{
if( fprintf( aFile, "LIBS:%s\n", TO_UTF8( lib.GetName() ) ) < 0 )
return false;
}
// This section is not used, but written for file compatibility
if( fprintf( aFile, "EELAYER %d %d\n", LAYERSCH_ID_COUNT, 0 ) < 0
|| fprintf( aFile, "EELAYER END\n" ) < 0 )
return false;
/* Write page info, ScreenNumber and NumberOfScreen; not very meaningful for
* SheetNumber and Sheet Count in a complex hierarchy, but useful in
* simple hierarchy and flat hierarchy. Used also to search the root
* sheet ( ScreenNumber = 1 ) within the files
*/
const TITLE_BLOCK& tb = GetTitleBlock();
if( fprintf( aFile, "$Descr %s %d %d%s\n", TO_UTF8( m_paper.GetType() ),
m_paper.GetWidthMils(),
m_paper.GetHeightMils(),
!m_paper.IsCustom() && m_paper.IsPortrait() ?
" portrait" : ""
) < 0
|| fprintf( aFile, "encoding utf-8\n") < 0
|| fprintf( aFile, "Sheet %d %d\n", m_ScreenNumber, m_NumberOfScreens ) < 0
|| fprintf( aFile, "Title %s\n", EscapedUTF8( tb.GetTitle() ).c_str() ) < 0
|| fprintf( aFile, "Date %s\n", EscapedUTF8( tb.GetDate() ).c_str() ) < 0
|| fprintf( aFile, "Rev %s\n", EscapedUTF8( tb.GetRevision() ).c_str() ) < 0
|| fprintf( aFile, "Comp %s\n", EscapedUTF8( tb.GetCompany() ).c_str() ) < 0
|| fprintf( aFile, "Comment1 %s\n", EscapedUTF8( tb.GetComment1() ).c_str() ) < 0
|| fprintf( aFile, "Comment2 %s\n", EscapedUTF8( tb.GetComment2() ).c_str() ) < 0
|| fprintf( aFile, "Comment3 %s\n", EscapedUTF8( tb.GetComment3() ).c_str() ) < 0
|| fprintf( aFile, "Comment4 %s\n", EscapedUTF8( tb.GetComment4() ).c_str() ) < 0
|| fprintf( aFile, "$EndDescr\n" ) < 0 )
return false;
for( SCH_ITEM* item = m_drawList.begin(); item; item = item->Next() )
{
if( !item->Save( aFile ) )
return false;
}
if( fprintf( aFile, "$EndSCHEMATC\n" ) < 0 )
return false;
return true;
}
void SCH_SCREEN::BuildSchCmpLinksToLibCmp()
{
// Initialize or reinitialize the pointer to the LIB_PART for each component
// found in m_drawList, but only if needed (change in lib or schematic)
// therefore the calculation time is usually very low.
if( m_drawList.GetCount() )
{
PART_LIBS* libs = Prj().SchLibs();
int mod_hash = libs->GetModifyHash();
// Must we resolve?
if( m_modification_sync != mod_hash )
{
SCH_TYPE_COLLECTOR c;
c.Collect( GetDrawItems(), SCH_COLLECTOR::ComponentsOnly );
SCH_COMPONENT::ResolveAll( c, libs );
m_modification_sync = mod_hash; // note the last mod_hash
}
}
}
void SCH_SCREEN::Draw( EDA_DRAW_PANEL* aCanvas, wxDC* aDC, GR_DRAWMODE aDrawMode, EDA_COLOR_T aColor )
{
/* note: SCH_SCREEN::Draw is useful only for schematic.
* library editor and library viewer do not use m_drawList, and therefore
* their SCH_SCREEN::Draw() draws nothing
*/
BuildSchCmpLinksToLibCmp();
for( SCH_ITEM* item = m_drawList.begin(); item; item = item->Next() )
{
if( item->IsMoving() || item->IsResized() )
continue;
// uncomment line below when there is a virtual
// EDA_ITEM::GetBoundingBox()
// if( panel->GetClipBox().Intersects( Structs->GetBoundingBox()
// ) )
item->Draw( aCanvas, aDC, wxPoint( 0, 0 ), aDrawMode, aColor );
}
}
/* note: SCH_SCREEN::Plot is useful only for schematic.
* library editor and library viewer do not use a draw list, and therefore
* SCH_SCREEN::Plot plots nothing
*/
void SCH_SCREEN::Plot( PLOTTER* aPlotter )
{
BuildSchCmpLinksToLibCmp();
for( SCH_ITEM* item = m_drawList.begin(); item; item = item->Next() )
{
aPlotter->SetCurrentLineWidth( item->GetPenSize() );
item->Plot( aPlotter );
}
}
void SCH_SCREEN::ClearUndoORRedoList( UNDO_REDO_CONTAINER& aList, int aItemCount )
{
if( aItemCount == 0 )
return;
unsigned icnt = aList.m_CommandsList.size();
if( aItemCount > 0 )
icnt = aItemCount;
for( unsigned ii = 0; ii < icnt; ii++ )
{
if( aList.m_CommandsList.size() == 0 )
break;
PICKED_ITEMS_LIST* curr_cmd = aList.m_CommandsList[0];
aList.m_CommandsList.erase( aList.m_CommandsList.begin() );
curr_cmd->ClearListAndDeleteItems();
delete curr_cmd; // Delete command
}
}
void SCH_SCREEN::ClearDrawingState()
{
for( SCH_ITEM* item = m_drawList.begin(); item; item = item->Next() )
item->ClearFlags();
}
LIB_PIN* SCH_SCREEN::GetPin( const wxPoint& aPosition, SCH_COMPONENT** aComponent,
bool aEndPointOnly ) const
{
SCH_ITEM* item;
SCH_COMPONENT* component = NULL;
LIB_PIN* pin = NULL;
for( item = m_drawList.begin(); item; item = item->Next() )
{
if( item->Type() != SCH_COMPONENT_T )
continue;
component = (SCH_COMPONENT*) item;
if( aEndPointOnly )
{
pin = NULL;
LIB_PART* part = Prj().SchLibs()->FindLibPart( component->GetPartName() );
if( !part )
continue;
for( pin = part->GetNextPin(); pin; pin = part->GetNextPin( pin ) )
{
// Skip items not used for this part.
if( component->GetUnit() && pin->GetUnit() &&
( pin->GetUnit() != component->GetUnit() ) )
continue;
if( component->GetConvert() && pin->GetConvert() &&
( pin->GetConvert() != component->GetConvert() ) )
continue;
if(component->GetPinPhysicalPosition( pin ) == aPosition )
break;
}
if( pin )
break;
}
else
{
pin = (LIB_PIN*) component->GetDrawItem( aPosition, LIB_PIN_T );
if( pin )
break;
}
}
if( pin && aComponent )
*aComponent = component;
return pin;
}
SCH_SHEET* SCH_SCREEN::GetSheet( const wxString& aName )
{
for( SCH_ITEM* item = m_drawList.begin(); item; item = item->Next() )
{
if( item->Type() != SCH_SHEET_T )
continue;
SCH_SHEET* sheet = (SCH_SHEET*) item;
if( aName.CmpNoCase( sheet->GetName() ) == 0 )
return sheet;
}
return NULL;
}
SCH_SHEET_PIN* SCH_SCREEN::GetSheetLabel( const wxPoint& aPosition )
{
SCH_SHEET_PIN* sheetPin = NULL;
for( SCH_ITEM* item = m_drawList.begin(); item; item = item->Next() )
{
if( item->Type() != SCH_SHEET_T )
continue;
SCH_SHEET* sheet = (SCH_SHEET*) item;
sheetPin = sheet->GetPin( aPosition );
if( sheetPin )
break;
}
return sheetPin;
}
int SCH_SCREEN::CountConnectedItems( const wxPoint& aPos, bool aTestJunctions ) const
{
SCH_ITEM* item;
int count = 0;
for( item = m_drawList.begin(); item; item = item->Next() )
{
if( item->Type() == SCH_JUNCTION_T && !aTestJunctions )
continue;
if( item->IsConnected( aPos ) )
count++;
}
return count;
}
void SCH_SCREEN::ClearAnnotation( SCH_SHEET_PATH* aSheetPath )
{
for( SCH_ITEM* item = m_drawList.begin(); item; item = item->Next() )
{
if( item->Type() == SCH_COMPONENT_T )
{
SCH_COMPONENT* component = (SCH_COMPONENT*) item;
component->ClearAnnotation( aSheetPath );
// Clear the modified component flag set by component->ClearAnnotation
// because we do not use it here and we should not leave this flag set,
// when an edition is finished:
component->ClearFlags();
}
}
}
void SCH_SCREEN::GetHierarchicalItems( EDA_ITEMS& aItems )
{
SCH_ITEM* item = m_drawList.begin();
while( item )
{
if( ( item->Type() == SCH_SHEET_T ) || ( item->Type() == SCH_COMPONENT_T ) )
aItems.push_back( item );
item = item->Next();
}
}
void SCH_SCREEN::SelectBlockItems()
{
PICKED_ITEMS_LIST* pickedlist = &m_BlockLocate.GetItems();
if( pickedlist->GetCount() == 0 )
return;
ClearDrawingState();
for( unsigned ii = 0; ii < pickedlist->GetCount(); ii++ )
{
SCH_ITEM* item = (SCH_ITEM*) pickedlist->GetPickedItem( ii );
item->SetFlags( SELECTED );
}
if( !m_BlockLocate.IsDragging() )
return;
// Select all the items in the screen connected to the items in the block.
// be sure end lines that are on the block limits are seen inside this block
m_BlockLocate.Inflate( 1 );
unsigned last_select_id = pickedlist->GetCount();
for( unsigned ii = 0; ii < last_select_id; ii++ )
{
SCH_ITEM* item = (SCH_ITEM*)pickedlist->GetPickedItem( ii );
item->SetFlags( IS_DRAGGED );
if( item->Type() == SCH_LINE_T )
{
item->IsSelectStateChanged( m_BlockLocate );
if( !item->IsSelected() )
{ // This is a special case:
// this selected wire has no ends in block.
// But it was selected (because it intersects the selecting area),
// so we must keep it selected and select items connected to it
// Note: an other option could be: remove it from drag list
item->SetFlags( SELECTED | SKIP_STRUCT );
std::vector< wxPoint > connections;
item->GetConnectionPoints( connections );
for( size_t i = 0; i < connections.size(); i++ )
addConnectedItemsToBlock( connections[i] );
}
pickedlist->SetPickerFlags( item->GetFlags(), ii );
}
else if( item->IsConnectable() )
{
std::vector< wxPoint > connections;
item->GetConnectionPoints( connections );
for( size_t jj = 0; jj < connections.size(); jj++ )
addConnectedItemsToBlock( connections[jj] );
}
}
m_BlockLocate.Inflate( -1 );
}
void SCH_SCREEN::addConnectedItemsToBlock( const wxPoint& position )
{
SCH_ITEM* item;
ITEM_PICKER picker;
bool addinlist = true;
for( item = m_drawList.begin(); item; item = item->Next() )
{
picker.SetItem( item );
if( !item->IsConnectable() || !item->IsConnected( position )
|| (item->GetFlags() & SKIP_STRUCT) )
continue;
if( item->IsSelected() && item->Type() != SCH_LINE_T )
continue;
// A line having 2 ends, it can be tested twice: one time per end
if( item->Type() == SCH_LINE_T )
{
if( ! item->IsSelected() ) // First time this line is tested
item->SetFlags( SELECTED | STARTPOINT | ENDPOINT );
else // second time (or more) this line is tested
addinlist = false;
SCH_LINE* line = (SCH_LINE*) item;
if( line->GetStartPoint() == position )
item->ClearFlags( STARTPOINT );
else if( line->GetEndPoint() == position )
item->ClearFlags( ENDPOINT );
}
else
item->SetFlags( SELECTED );
if( addinlist )
{
picker.SetFlags( item->GetFlags() );
m_BlockLocate.GetItems().PushItem( picker );
}
}
}
int SCH_SCREEN::UpdatePickList()
{
ITEM_PICKER picker;
EDA_RECT area;
unsigned count;
area.SetOrigin( m_BlockLocate.GetOrigin() );
area.SetSize( m_BlockLocate.GetSize() );
area.Normalize();
for( SCH_ITEM* item = m_drawList.begin(); item; item = item->Next() )
{
// An item is picked if its bounding box intersects the reference area.
if( item->HitTest( area ) )
{
picker.SetItem( item );
m_BlockLocate.PushItem( picker );
}
}
// if the block is composed of one item,
// select it as the current item
count = m_BlockLocate.GetCount();
if( count == 1 )
{
SetCurItem( (SCH_ITEM*) m_BlockLocate.GetItem( 0 ) );
}
else
{
SetCurItem( NULL );
}
return count;
}
bool SCH_SCREEN::TestDanglingEnds( EDA_DRAW_PANEL* aCanvas, wxDC* aDC )
{
SCH_ITEM* item;
std::vector< DANGLING_END_ITEM > endPoints;
bool hasDanglingEnds = false;
for( item = m_drawList.begin(); item; item = item->Next() )
item->GetEndPoints( endPoints );
for( item = m_drawList.begin(); item; item = item->Next() )
{
if( item->IsDanglingStateChanged( endPoints ) && ( aCanvas ) && ( aDC ) )
{
item->Draw( aCanvas, aDC, wxPoint( 0, 0 ), g_XorMode );
item->Draw( aCanvas, aDC, wxPoint( 0, 0 ), GR_DEFAULT_DRAWMODE );
}
if( item->IsDangling() )
hasDanglingEnds = true;
}
return hasDanglingEnds;
}
bool SCH_SCREEN::BreakSegment( const wxPoint& aPoint )
{
SCH_LINE* segment;
SCH_LINE* newSegment;
bool brokenSegments = false;
for( SCH_ITEM* item = m_drawList.begin(); item; item = item->Next() )
{
if( (item->Type() != SCH_LINE_T) || (item->GetLayer() == LAYER_NOTES) )
continue;
segment = (SCH_LINE*) item;
if( !segment->HitTest( aPoint, 0 ) || segment->IsEndPoint( aPoint ) )
continue;
// Break the segment at aPoint and create a new segment.
newSegment = new SCH_LINE( *segment );
newSegment->SetStartPoint( aPoint );
segment->SetEndPoint( aPoint );
m_drawList.Insert( newSegment, segment->Next() );
item = newSegment;
brokenSegments = true;
}
return brokenSegments;
}
bool SCH_SCREEN::BreakSegmentsOnJunctions()
{
bool brokenSegments = false;
for( SCH_ITEM* item = m_drawList.begin(); item; item = item->Next() )
{
if( item->Type() == SCH_JUNCTION_T )
{
SCH_JUNCTION* junction = ( SCH_JUNCTION* ) item;
if( BreakSegment( junction->GetPosition() ) )
brokenSegments = true;
}
else
{
SCH_BUS_ENTRY_BASE* busEntry = dynamic_cast<SCH_BUS_ENTRY_BASE*>( item );
if( busEntry )
{
if( BreakSegment( busEntry->GetPosition() )
|| BreakSegment( busEntry->m_End() ) )
brokenSegments = true;
}
}
}
return brokenSegments;
}
int SCH_SCREEN::GetNode( const wxPoint& aPosition, EDA_ITEMS& aList )
{
for( SCH_ITEM* item = m_drawList.begin(); item; item = item->Next() )
{
if( item->Type() == SCH_LINE_T && item->HitTest( aPosition )
&& (item->GetLayer() == LAYER_BUS || item->GetLayer() == LAYER_WIRE) )
{
aList.push_back( item );
}
else if( item->Type() == SCH_JUNCTION_T && item->HitTest( aPosition ) )
{
aList.push_back( item );
}
}
return (int) aList.size();
}
SCH_LINE* SCH_SCREEN::GetWireOrBus( const wxPoint& aPosition )
{
for( SCH_ITEM* item = m_drawList.begin(); item; item = item->Next() )
{
if( (item->Type() == SCH_LINE_T) && item->HitTest( aPosition )
&& (item->GetLayer() == LAYER_BUS || item->GetLayer() == LAYER_WIRE) )
{
return (SCH_LINE*) item;
}
}
return NULL;
}
SCH_LINE* SCH_SCREEN::GetLine( const wxPoint& aPosition, int aAccuracy, int aLayer,
SCH_LINE_TEST_T aSearchType )
{
for( SCH_ITEM* item = m_drawList.begin(); item; item = item->Next() )
{
if( item->Type() != SCH_LINE_T )
continue;
if( item->GetLayer() != aLayer )
continue;
if( !item->HitTest( aPosition, aAccuracy ) )
continue;
switch( aSearchType )
{
case ENTIRE_LENGTH_T:
return (SCH_LINE*) item;
case EXCLUDE_END_POINTS_T:
if( !( (SCH_LINE*) item )->IsEndPoint( aPosition ) )
return (SCH_LINE*) item;
break;
case END_POINTS_ONLY_T:
if( ( (SCH_LINE*) item )->IsEndPoint( aPosition ) )
return (SCH_LINE*) item;
}
}
return NULL;
}
SCH_TEXT* SCH_SCREEN::GetLabel( const wxPoint& aPosition, int aAccuracy )
{
for( SCH_ITEM* item = m_drawList.begin(); item; item = item->Next() )
{
switch( item->Type() )
{
case SCH_LABEL_T:
case SCH_GLOBAL_LABEL_T:
case SCH_HIERARCHICAL_LABEL_T:
if( item->HitTest( aPosition, aAccuracy ) )
return (SCH_TEXT*) item;
default:
;
}
}
return NULL;
}
bool SCH_SCREEN::SetComponentFootprint( SCH_SHEET_PATH* aSheetPath, const wxString& aReference,
const wxString& aFootPrint, bool aSetVisible )
{
SCH_COMPONENT* component;
bool found = false;
for( SCH_ITEM* item = m_drawList.begin(); item; item = item->Next() )
{
if( item->Type() != SCH_COMPONENT_T )
continue;
component = (SCH_COMPONENT*) item;
if( aReference.CmpNoCase( component->GetRef( aSheetPath ) ) == 0 )
{
// Found: Init Footprint Field
/* Give a reasonable value to the field position and
* orientation, if the text is empty at position 0, because
* it is probably not yet initialized
*/
SCH_FIELD * fpfield = component->GetField( FOOTPRINT );
if( fpfield->GetText().IsEmpty()
&& ( fpfield->GetTextPosition() == component->GetPosition() ) )
{
fpfield->SetOrientation( component->GetField( VALUE )->GetOrientation() );
fpfield->SetTextPosition( component->GetField( VALUE )->GetTextPosition() );
fpfield->SetSize( component->GetField( VALUE )->GetSize() );
if( fpfield->GetOrientation() == 0 )
fpfield->Offset( wxPoint( 0, 100 ) );
else
fpfield->Offset( wxPoint( 100, 0 ) );
}
fpfield->SetText( aFootPrint );
fpfield->SetVisible( aSetVisible );
found = true;
}
}
return found;
}
int SCH_SCREEN::GetConnection( const wxPoint& aPosition, PICKED_ITEMS_LIST& aList,
bool aFullConnection )
{
SCH_ITEM* item;
EDA_ITEM* tmp;
EDA_ITEMS list;
// Clear flags member for all items.
ClearDrawingState();
BreakSegmentsOnJunctions();
if( GetNode( aPosition, list ) == 0 )
return 0;
for( size_t i = 0; i < list.size(); i++ )
{
item = (SCH_ITEM*) list[ i ];
item->SetFlags( SELECTEDNODE | STRUCT_DELETED );
/* Put this structure in the picked list: */
ITEM_PICKER picker( item, UR_DELETED );
aList.PushItem( picker );
}
// Mark all wires, junctions, .. connected to the item(s) found.
if( aFullConnection )
{
SCH_LINE* segment;
for( item = m_drawList.begin(); item; item = item->Next() )
{
if( !(item->GetFlags() & SELECTEDNODE) )
continue;
if( item->Type() != SCH_LINE_T )
continue;
MarkConnections( (SCH_LINE*) item );
}
// Search all attached wires (i.e wire with one new dangling end )
for( item = m_drawList.begin(); item; item = item->Next() )
{
bool noconnect = false;
if( item->GetFlags() & STRUCT_DELETED )
continue; // Already seen
if( !(item->GetFlags() & CANDIDATE) )
continue; // not a candidate
if( item->Type() != SCH_LINE_T )
continue;
item->SetFlags( SKIP_STRUCT );
segment = (SCH_LINE*) item;
/* If the wire start point is connected to a wire that was already found
* and now is not connected, add the wire to the list. */
for( tmp = m_drawList.begin(); tmp; tmp = tmp->Next() )
{
// Ensure tmp is a previously deleted segment:
if( ( tmp->GetFlags() & STRUCT_DELETED ) == 0 )
continue;
if( tmp->Type() != SCH_LINE_T )
continue;
SCH_LINE* testSegment = (SCH_LINE*) tmp;
// Test for segment connected to the previously deleted segment:
if( testSegment->IsEndPoint( segment->GetStartPoint() ) )
break;
}
// when tmp != NULL, segment is a new candidate:
// put it in deleted list if
// the start point is not connected to an other item (like pin)
if( tmp && !CountConnectedItems( segment->GetStartPoint(), true ) )
noconnect = true;
/* If the wire end point is connected to a wire that has already been found
* and now is not connected, add the wire to the list. */
for( tmp = m_drawList.begin(); tmp; tmp = tmp->Next() )
{
// Ensure tmp is a previously deleted segment:
if( ( tmp->GetFlags() & STRUCT_DELETED ) == 0 )
continue;
if( tmp->Type() != SCH_LINE_T )
continue;
SCH_LINE* testSegment = (SCH_LINE*) tmp;
// Test for segment connected to the previously deleted segment:
if( testSegment->IsEndPoint( segment->GetEndPoint() ) )
break;
}
// when tmp != NULL, segment is a new candidate:
// put it in deleted list if
// the end point is not connected to an other item (like pin)
if( tmp && !CountConnectedItems( segment->GetEndPoint(), true ) )
noconnect = true;
item->ClearFlags( SKIP_STRUCT );
if( noconnect )
{
item->SetFlags( STRUCT_DELETED );
ITEM_PICKER picker( item, UR_DELETED );
aList.PushItem( picker );
item = m_drawList.begin();
}
}
// Get redundant junctions (junctions which connect < 3 end wires
// and no pin)
for( item = m_drawList.begin(); item; item = item->Next() )
{
if( item->GetFlags() & STRUCT_DELETED )
continue;
if( !(item->GetFlags() & CANDIDATE) )
continue;
if( item->Type() != SCH_JUNCTION_T )
continue;
SCH_JUNCTION* junction = (SCH_JUNCTION*) item;
if( CountConnectedItems( junction->GetPosition(), false ) <= 2 )
{
item->SetFlags( STRUCT_DELETED );
ITEM_PICKER picker( item, UR_DELETED );
aList.PushItem( picker );
}
}
for( item = m_drawList.begin(); item; item = item->Next() )
{
if( item->GetFlags() & STRUCT_DELETED )
continue;
if( item->Type() != SCH_LABEL_T )
continue;
tmp = GetWireOrBus( ( (SCH_TEXT*) item )->GetPosition() );
if( tmp && tmp->GetFlags() & STRUCT_DELETED )
{
item->SetFlags( STRUCT_DELETED );
ITEM_PICKER picker( item, UR_DELETED );
aList.PushItem( picker );
}
}
}
ClearDrawingState();
return aList.GetCount();
}
/******************************************************************/
/* Class SCH_SCREENS to handle the list of screens in a hierarchy */
/******************************************************************/
/**
* Function SortByTimeStamp
* sorts a list of schematic items by time stamp and type.
*/
static bool SortByTimeStamp( const EDA_ITEM* item1, const EDA_ITEM* item2 )
{
int ii = item1->GetTimeStamp() - item2->GetTimeStamp();
/* If the time stamps are the same, compare type in order to have component objects
* before sheet object. This is done because changing the sheet time stamp
* before the component time stamp could cause the current annotation to be lost.
*/
if( ( ii == 0 && ( item1->Type() != item2->Type() ) ) && ( item1->Type() == SCH_SHEET_T ) )
ii = -1;
return ii < 0;
}
SCH_SCREENS::SCH_SCREENS()
{
m_index = 0;
BuildScreenList( g_RootSheet );
}
SCH_SCREENS::~SCH_SCREENS()
{
}
SCH_SCREEN* SCH_SCREENS::GetFirst()
{
m_index = 0;
if( m_screens.size() > 0 )
return m_screens[0];
return NULL;
}
SCH_SCREEN* SCH_SCREENS::GetNext()
{
if( m_index < m_screens.size() )
m_index++;
return GetScreen( m_index );
}
SCH_SCREEN* SCH_SCREENS::GetScreen( unsigned int aIndex ) const
{
if( aIndex < m_screens.size() )
return m_screens[ aIndex ];
return NULL;
}
void SCH_SCREENS::AddScreenToList( SCH_SCREEN* aScreen )
{
if( aScreen == NULL )
return;
for( unsigned int i = 0; i < m_screens.size(); i++ )
{
if( m_screens[i] == aScreen )
return;
}
m_screens.push_back( aScreen );
}
void SCH_SCREENS::BuildScreenList( EDA_ITEM* aItem )
{
if( aItem && aItem->Type() == SCH_SHEET_T )
{
SCH_SHEET* ds = (SCH_SHEET*) aItem;
aItem = ds->GetScreen();
}
if( aItem && aItem->Type() == SCH_SCREEN_T )
{
SCH_SCREEN* screen = (SCH_SCREEN*) aItem;
// Ensure each component has its pointer to its part lib LIB_PART
// up to date (the cost is low if this is the case)
// We do this update here, because most of time this function is called
// to create a netlist, or an ERC, which need this update
screen->BuildSchCmpLinksToLibCmp();
AddScreenToList( screen );
EDA_ITEM* strct = screen->GetDrawItems();
while( strct )
{
if( strct->Type() == SCH_SHEET_T )
{
BuildScreenList( strct );
}
strct = strct->Next();
}
}
}
void SCH_SCREENS::ClearAnnotation()
{
for( size_t i = 0; i < m_screens.size(); i++ )
m_screens[i]->ClearAnnotation( NULL );
}
void SCH_SCREENS::SchematicCleanUp()
{
for( size_t i = 0; i < m_screens.size(); i++ )
{
// if wire list has changed, delete the undo/redo list to avoid
// pointer problems with deleted data.
if( m_screens[i]->SchematicCleanUp() )
m_screens[i]->ClearUndoRedoList();
}
}
int SCH_SCREENS::ReplaceDuplicateTimeStamps()
{
EDA_ITEMS items;
SCH_ITEM* item;
for( size_t i = 0; i < m_screens.size(); i++ )
m_screens[i]->GetHierarchicalItems( items );
if( items.size() < 2 )
return 0;
sort( items.begin(), items.end(), SortByTimeStamp );
int count = 0;
for( size_t ii = 0; ii < items.size() - 1; ii++ )
{
item = (SCH_ITEM*)items[ii];
SCH_ITEM* nextItem = (SCH_ITEM*)items[ii + 1];
if( item->GetTimeStamp() == nextItem->GetTimeStamp() )
{
count++;
// for a component, update its Time stamp and its paths
// (m_PathsAndReferences field)
if( item->Type() == SCH_COMPONENT_T )
( (SCH_COMPONENT*) item )->SetTimeStamp( GetNewTimeStamp() );
// for a sheet, update only its time stamp (annotation of its
// components will be lost)
// @todo: see how to change sheet paths for its cmp list (can
// be possible in most cases)
else
item->SetTimeStamp( GetNewTimeStamp() );
}
}
return count;
}
void SCH_SCREENS::DeleteAllMarkers( int aMarkerType )
{
SCH_ITEM* item;
SCH_ITEM* nextItem;
SCH_MARKER* marker;
SCH_SCREEN* screen;
for( screen = GetFirst(); screen; screen = GetNext() )
{
for( item = screen->GetDrawItems(); item; item = nextItem )
{
nextItem = item->Next();
if( item->Type() != SCH_MARKER_T )
continue;
marker = (SCH_MARKER*) item;
if( marker->GetMarkerType() != aMarkerType )
continue;
screen->DeleteItem( marker );
}
}
}
int SCH_SCREENS::GetMarkerCount( int aMarkerType )
{
SCH_ITEM* item;
SCH_ITEM* nextItem;
SCH_MARKER* marker;
SCH_SCREEN* screen;
int count = 0;
for( screen = GetFirst(); screen; screen = GetNext() )
{
for( item = screen->GetDrawItems(); item; item = nextItem )
{
nextItem = item->Next();
if( item->Type() != SCH_MARKER_T )
continue;
marker = (SCH_MARKER*) item;
if( (aMarkerType != -1) && (marker->GetMarkerType() != aMarkerType) )
continue;
count++;
}
}
return count;
}
#if defined(DEBUG)
void SCH_SCREEN::Show( int nestLevel, std::ostream& os ) const
{
// for now, make it look like XML, expand on this later.
NestedSpace( nestLevel, os ) << '<' << GetClass().Lower().mb_str() << ">\n";
for( EDA_ITEM* item = m_drawList.begin(); item; item = item->Next() )
{
item->Show( nestLevel+1, os );
}
NestedSpace( nestLevel, os ) << "</" << GetClass().Lower().mb_str() << ">\n";
}
#endif
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