646 lines
19 KiB
C++
646 lines
19 KiB
C++
/*
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* This program source code file is part of KiCad, a free EDA CAD application.
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*
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* Copyright (C) 2004 Jean-Pierre Charras, jaen-pierre.charras@gipsa-lab.inpg.com
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* Copyright (C) 2008-2011 Wayne Stambaugh <stambaughw@verizon.net>
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* Copyright (C) 2004-2011 KiCad Developers, see change_log.txt for contributors.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, you may find one here:
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* http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
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* or you may search the http://www.gnu.org website for the version 2 license,
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* or you may write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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/**
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* @file bus-wire-junction.cpp
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* @brief Code for editing buses, wires, and junctions.
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*/
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#include "fctsys.h"
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#include "gr_basic.h"
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#include "class_drawpanel.h"
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#include "confirm.h"
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#include "wxEeschemaStruct.h"
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#include "lib_draw_item.h"
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#include "lib_pin.h"
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#include "general.h"
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#include "protos.h"
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#include "sch_bus_entry.h"
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#include "sch_junction.h"
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#include "sch_line.h"
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#include "sch_no_connect.h"
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#include "sch_polyline.h"
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#include "sch_text.h"
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#include "sch_component.h"
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#include "sch_sheet.h"
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static void AbortCreateNewLine( EDA_DRAW_PANEL* Panel, wxDC* DC );
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static void ComputeBreakPoint( SCH_LINE* segment, const wxPoint& new_pos );
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SCH_ITEM* s_OldWiresList;
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wxPoint s_ConnexionStartPoint;
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/**
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* Mouse capture callback for drawing line segments.
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*/
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static void DrawSegment( EDA_DRAW_PANEL* aPanel, wxDC* aDC, const wxPoint& aPosition,
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bool aErase )
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{
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SCH_LINE* CurrentLine = (SCH_LINE*) aPanel->GetScreen()->GetCurItem();
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SCH_LINE* segment;
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int color;
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if( CurrentLine == NULL )
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return;
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color = ReturnLayerColor( CurrentLine->GetLayer() ) ^ HIGHLIGHT_FLAG;
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if( aErase )
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{
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segment = CurrentLine;
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while( segment )
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{
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if( !segment->IsNull() ) // Redraw if segment length != 0
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segment->Draw( aPanel, aDC, wxPoint( 0, 0 ), g_XorMode, color );
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segment = segment->Next();
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}
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}
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wxPoint endpos = aPanel->GetScreen()->GetCrossHairPosition();
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if( g_HVLines ) /* Coerce the line to vertical or horizontal one: */
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ComputeBreakPoint( CurrentLine, endpos );
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else
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CurrentLine->m_End = endpos;
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segment = CurrentLine;
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while( segment )
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{
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if( !segment->IsNull() ) // Redraw if segment length != 0
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segment->Draw( aPanel, aDC, wxPoint( 0, 0 ), g_XorMode, color );
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segment = segment->Next();
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}
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}
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/* Creates a new segment ( WIRE, BUS ),
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* or terminates the current segment
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* If the end of the current segment is on an other segment, place a junction
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* if needed and terminates the command
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* If the end of the current segment is on a pin, terminates the command
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* In others cases starts a new segment
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*/
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void SCH_EDIT_FRAME::BeginSegment( wxDC* DC, int type )
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{
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SCH_LINE* oldsegment, * newsegment, * nextsegment;
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wxPoint cursorpos = GetScreen()->GetCrossHairPosition();
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if( GetScreen()->GetCurItem() && (GetScreen()->GetCurItem()->GetFlags() == 0) )
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GetScreen()->SetCurItem( NULL );
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if( GetScreen()->GetCurItem() )
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{
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switch( GetScreen()->GetCurItem()->Type() )
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{
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case SCH_LINE_T:
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case SCH_POLYLINE_T:
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break;
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default:
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return;
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}
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}
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oldsegment = newsegment = (SCH_LINE*) GetScreen()->GetCurItem();
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if( !newsegment ) /* first point : Create first wire or bus */
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{
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s_ConnexionStartPoint = cursorpos;
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s_OldWiresList = GetScreen()->ExtractWires( true );
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GetScreen()->SchematicCleanUp( DrawPanel );
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switch( type )
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{
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default:
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newsegment = new SCH_LINE( cursorpos, LAYER_NOTES );
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break;
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case LAYER_WIRE:
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newsegment = new SCH_LINE( cursorpos, LAYER_WIRE );
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/* A junction will be created later, when we'll know the
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* segment end position, and if the junction is really needed */
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break;
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case LAYER_BUS:
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newsegment = new SCH_LINE( cursorpos, LAYER_BUS );
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break;
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}
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newsegment->SetFlags( IS_NEW );
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if( g_HVLines ) // We need 2 segments to go from a given start pin to an end point
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{
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nextsegment = new SCH_LINE( *newsegment );
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nextsegment->SetFlags( IS_NEW );
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newsegment->SetNext( nextsegment );
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nextsegment->SetBack( newsegment );
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}
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GetScreen()->SetCurItem( newsegment );
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DrawPanel->SetMouseCapture( DrawSegment, AbortCreateNewLine );
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m_itemToRepeat = NULL;
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}
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else // A segment is in progress: terminates the current segment and add a new segment.
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{
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nextsegment = oldsegment->Next();
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if( !g_HVLines )
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{
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// if only one segment is needed and it has length = 0, do not create a new one.
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if( oldsegment->IsNull() )
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return;
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}
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else
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{
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/* if we want 2 segment and the last two have len = 0, do not
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* create a new one */
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if( oldsegment->IsNull() && nextsegment && nextsegment->IsNull() )
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return;
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}
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DrawPanel->m_mouseCaptureCallback( DrawPanel, DC, wxDefaultPosition, false );
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/* Creates the new segment, or terminates the command
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* if the end point is on a pin, junction or an other wire or bus */
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if( GetScreen()->IsTerminalPoint( cursorpos, oldsegment->GetLayer() ) )
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{
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EndSegment( DC );
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return;
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}
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oldsegment->SetNext( GetScreen()->GetDrawItems() );
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GetScreen()->SetDrawItems( oldsegment );
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DrawPanel->CrossHairOff( DC ); // Erase schematic cursor
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oldsegment->Draw( DrawPanel, DC, wxPoint( 0, 0 ), GR_DEFAULT_DRAWMODE );
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DrawPanel->CrossHairOn( DC ); // Display schematic cursor
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/* Create a new segment, and chain it after the current new segment */
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if( nextsegment )
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{
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newsegment = new SCH_LINE( *nextsegment );
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nextsegment->m_Start = newsegment->m_End;
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nextsegment->SetNext( NULL );
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nextsegment->SetBack( newsegment );
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newsegment->SetNext( nextsegment );
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newsegment->SetBack( NULL );
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}
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else
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{
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newsegment = new SCH_LINE( *oldsegment );
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newsegment->m_Start = oldsegment->m_End;
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}
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newsegment->m_End = cursorpos;
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oldsegment->ClearFlags( IS_NEW );
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oldsegment->SetFlags( SELECTED );
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newsegment->SetFlags( IS_NEW );
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GetScreen()->SetCurItem( newsegment );
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DrawPanel->m_mouseCaptureCallback( DrawPanel, DC, wxDefaultPosition, false );
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/* This is the first segment: Now we know the start segment position.
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* Create a junction if needed. Note: a junction can be needed later,
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* if the new segment is merged (after a cleanup) with an older one
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* (tested when the connection will be finished)*/
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if( oldsegment->m_Start == s_ConnexionStartPoint )
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{
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if( GetScreen()->IsJunctionNeeded( s_ConnexionStartPoint ) )
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AddJunction( DC, s_ConnexionStartPoint );
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}
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}
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}
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/* Called to terminate a bus, wire, or line creation
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*/
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void SCH_EDIT_FRAME::EndSegment( wxDC* DC )
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{
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SCH_LINE* firstsegment = (SCH_LINE*) GetScreen()->GetCurItem();
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SCH_LINE* lastsegment = firstsegment;
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SCH_LINE* segment;
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if( firstsegment == NULL )
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return;
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if( !firstsegment->IsNew() )
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return;
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/* Delete Null segments and Put line it in Drawlist */
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lastsegment = firstsegment;
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while( lastsegment )
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{
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SCH_LINE* nextsegment = lastsegment->Next();
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if( lastsegment->IsNull() )
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{
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SCH_LINE* previous_segment = lastsegment->Back();
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if( firstsegment == lastsegment )
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firstsegment = nextsegment;
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if( nextsegment )
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nextsegment->SetBack( NULL );
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if( previous_segment )
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previous_segment->SetNext( nextsegment );
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delete lastsegment;
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}
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lastsegment = nextsegment;
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}
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/* put the segment list to the main linked list */
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segment = lastsegment = firstsegment;
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while( segment )
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{
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lastsegment = segment;
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segment = segment->Next();
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lastsegment->SetNext( GetScreen()->GetDrawItems() );
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GetScreen()->SetDrawItems( lastsegment );
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}
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DrawPanel->SetMouseCapture( NULL, NULL );
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GetScreen()->SetCurItem( NULL );
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wxPoint end_point, alt_end_point;
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/* A junction can be needed to connect the last segment
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* usually to m_End coordinate.
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* But if the last segment is removed by a cleanup, because of redundancy,
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* a junction can be needed to connect the previous segment m_End
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* coordinate with is also the lastsegment->m_Start coordinate */
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if( lastsegment )
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{
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end_point = lastsegment->m_End;
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alt_end_point = lastsegment->m_Start;
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}
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GetScreen()->SchematicCleanUp( DrawPanel );
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/* clear flags and find last segment entered, for repeat function */
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segment = (SCH_LINE*) GetScreen()->GetDrawItems();
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while( segment )
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{
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if( segment->GetFlags() )
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{
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if( !m_itemToRepeat )
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m_itemToRepeat = segment;
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}
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segment->ClearFlags();
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segment = segment->Next();
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}
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// Automatic place of a junction on the end point, if needed
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if( lastsegment )
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{
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if( GetScreen()->IsJunctionNeeded( end_point ) )
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AddJunction( DC, end_point );
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else if( GetScreen()->IsJunctionNeeded( alt_end_point ) )
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AddJunction( DC, alt_end_point );
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}
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/* Automatic place of a junction on the start point if necessary because
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* the cleanup can suppress intermediate points by merging wire segments */
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if( GetScreen()->IsJunctionNeeded( s_ConnexionStartPoint ) )
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AddJunction( DC, s_ConnexionStartPoint );
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GetScreen()->TestDanglingEnds( DrawPanel, DC );
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/* Redraw wires and junctions which can be changed by TestDanglingEnds() */
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DrawPanel->CrossHairOff( DC ); // Erase schematic cursor
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EDA_ITEM* item = GetScreen()->GetDrawItems();
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while( item )
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{
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switch( item->Type() )
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{
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case SCH_JUNCTION_T:
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case SCH_LINE_T:
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DrawPanel->RefreshDrawingRect( item->GetBoundingBox() );
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break;
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default:
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break;
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}
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item = item->Next();
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}
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DrawPanel->CrossHairOn( DC ); // Display schematic cursor
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SaveCopyInUndoList( s_OldWiresList, UR_WIRE_IMAGE );
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s_OldWiresList = NULL;
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OnModify( );
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}
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/* compute the middle coordinate for 2 segments, from the start point to
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* new_pos
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* with the 2 segments kept H or V only
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*/
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static void ComputeBreakPoint( SCH_LINE* segment, const wxPoint& new_pos )
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{
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SCH_LINE* nextsegment = segment->Next();
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wxPoint middle_position = new_pos;
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if( nextsegment == NULL )
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return;
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#if 0
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if( ABS( middle_position.x - segment->m_Start.x ) <
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ABS( middle_position.y - segment->m_Start.y ) )
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middle_position.x = segment->m_Start.x;
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else
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middle_position.y = segment->m_Start.y;
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#else
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int iDx = segment->m_End.x - segment->m_Start.x;
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int iDy = segment->m_End.y - segment->m_Start.y;
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if( iDy != 0 ) // keep the first segment orientation (currently horizontal)
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{
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middle_position.x = segment->m_Start.x;
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}
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else if( iDx != 0 ) // keep the first segment orientation (currently vertical)
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{
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middle_position.y = segment->m_Start.y;
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}
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else
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{
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if( ABS( middle_position.x - segment->m_Start.x ) <
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ABS( middle_position.y - segment->m_Start.y ) )
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middle_position.x = segment->m_Start.x;
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else
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middle_position.y = segment->m_Start.y;
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}
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#endif
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segment->m_End = middle_position;
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nextsegment->m_Start = middle_position;
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nextsegment->m_End = new_pos;
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}
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/*
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* Erase the last trace or the element at the current mouse position.
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*/
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void SCH_EDIT_FRAME::DeleteCurrentSegment( wxDC* DC )
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{
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SCH_SCREEN* screen = GetScreen();
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m_itemToRepeat = NULL;
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if( ( screen->GetCurItem() == NULL ) || !screen->GetCurItem()->IsNew() )
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return;
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/* Cancel trace in progress */
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if( screen->GetCurItem()->Type() == SCH_POLYLINE_T )
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{
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SCH_POLYLINE* polyLine = (SCH_POLYLINE*) screen->GetCurItem();
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wxPoint endpos;
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endpos = screen->GetCrossHairPosition();
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int idx = polyLine->GetCornerCount() - 1;
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if( g_HVLines )
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{
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/* Coerce the line to vertical or horizontal one: */
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if( ABS( endpos.x - polyLine->m_PolyPoints[idx].x ) <
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ABS( endpos.y - polyLine->m_PolyPoints[idx].y ) )
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endpos.x = polyLine->m_PolyPoints[idx].x;
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else
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endpos.y = polyLine->m_PolyPoints[idx].y;
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}
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polyLine->m_PolyPoints[idx] = endpos;
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polyLine->Draw( DrawPanel, DC, wxPoint( 0, 0 ), g_XorMode );
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}
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else
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{
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DrawSegment( DrawPanel, DC, wxDefaultPosition, false );
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}
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screen->RemoveFromDrawList( screen->GetCurItem() );
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DrawPanel->m_mouseCaptureCallback = NULL;
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screen->SetCurItem( NULL );
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}
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static void moveItem( EDA_DRAW_PANEL* aPanel, wxDC* aDC, const wxPoint& aPosition, bool aErase )
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{
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SCH_SCREEN* screen = (SCH_SCREEN*) aPanel->GetScreen();
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SCH_ITEM* item = screen->GetCurItem();
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wxCHECK_RET( (item != NULL), wxT( "Cannot move invalid schematic item." ) );
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// Erase the current item at its current position.
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if( aErase )
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item->Draw( aPanel, aDC, wxPoint( 0, 0 ), g_XorMode );
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item->SetPosition( screen->GetCrossHairPosition() );
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// Draw the item item at it's new position.
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item->Draw( aPanel, aDC, wxPoint( 0, 0 ), g_XorMode );
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}
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static void abortMoveItem( EDA_DRAW_PANEL* aPanel, wxDC* aDC )
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{
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SCH_SCREEN* screen = (SCH_SCREEN*) aPanel->GetScreen();
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SCH_ITEM* item = screen->GetCurItem();
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SCH_EDIT_FRAME* parent = ( SCH_EDIT_FRAME* ) aPanel->GetParent();
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parent->SetRepeatItem( NULL );
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screen->SetCurItem( NULL );
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if( item == NULL ) /* no current item */
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return;
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if( item->IsNew() )
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{
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delete item;
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item = NULL;
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}
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else // Move command on an existing text item, restore the values of the original.
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{
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SCH_ITEM* olditem = parent->GetUndoItem();
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screen->SetCurItem( item );
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wxCHECK_RET( olditem != NULL && item->Type() == olditem->Type(),
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wxT( "Cannot restore undefined or bad last schematic item." ) );
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// Never delete existing item, because it can be referenced by an undo/redo command
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// Just restore its data
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item->SwapData( olditem );
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item->ClearFlags();
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}
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aPanel->Refresh();
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}
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/* Routine to create new connection struct.
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*/
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SCH_JUNCTION* SCH_EDIT_FRAME::AddJunction( wxDC* aDC, const wxPoint& aPosition,
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bool aPutInUndoList )
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{
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SCH_JUNCTION* junction = new SCH_JUNCTION( aPosition );
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m_itemToRepeat = junction;
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DrawPanel->CrossHairOff( aDC ); // Erase schematic cursor
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junction->Draw( DrawPanel, aDC, wxPoint( 0, 0 ), GR_DEFAULT_DRAWMODE );
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DrawPanel->CrossHairOn( aDC ); // Display schematic cursor
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junction->SetNext( GetScreen()->GetDrawItems() );
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GetScreen()->SetDrawItems( junction );
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OnModify();
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if( aPutInUndoList )
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SaveCopyInUndoList( junction, UR_NEW );
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return junction;
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}
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void SCH_EDIT_FRAME::MoveItem( SCH_ITEM* aItem, wxDC* aDC )
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{
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wxCHECK_RET( aItem != NULL, wxT( "Cannot move invalid schematic item" ) );
|
|
|
|
m_itemToRepeat = NULL;
|
|
|
|
if( !aItem->IsNew() )
|
|
SetUndoItem( aItem );
|
|
|
|
aItem->SetFlags( IS_MOVED );
|
|
|
|
DrawPanel->CrossHairOff( aDC );
|
|
GetScreen()->SetCrossHairPosition( aItem->GetPosition() );
|
|
DrawPanel->MoveCursorToCrossHair();
|
|
|
|
OnModify();
|
|
DrawPanel->SetMouseCapture( moveItem, abortMoveItem );
|
|
GetScreen()->SetCurItem( aItem );
|
|
moveItem( DrawPanel, aDC, wxDefaultPosition, true );
|
|
DrawPanel->CrossHairOn( aDC );
|
|
}
|
|
|
|
|
|
SCH_NO_CONNECT* SCH_EDIT_FRAME::AddNoConnect( wxDC* aDC, const wxPoint& aPosition )
|
|
{
|
|
SCH_NO_CONNECT* NewNoConnect;
|
|
|
|
NewNoConnect = new SCH_NO_CONNECT( aPosition );
|
|
m_itemToRepeat = NewNoConnect;
|
|
|
|
DrawPanel->CrossHairOff( aDC ); // Erase schematic cursor
|
|
NewNoConnect->Draw( DrawPanel, aDC, wxPoint( 0, 0 ), GR_DEFAULT_DRAWMODE );
|
|
DrawPanel->CrossHairOn( aDC ); // Display schematic cursor
|
|
|
|
NewNoConnect->SetNext( GetScreen()->GetDrawItems() );
|
|
GetScreen()->SetDrawItems( NewNoConnect );
|
|
OnModify();
|
|
SaveCopyInUndoList( NewNoConnect, UR_NEW );
|
|
return NewNoConnect;
|
|
}
|
|
|
|
|
|
/* Abort function for wire, bus or line creation
|
|
*/
|
|
static void AbortCreateNewLine( EDA_DRAW_PANEL* Panel, wxDC* DC )
|
|
{
|
|
SCH_SCREEN* screen = (SCH_SCREEN*) Panel->GetScreen();
|
|
|
|
if( screen->GetCurItem() )
|
|
{
|
|
screen->RemoveFromDrawList( (SCH_ITEM*) screen->GetCurItem() );
|
|
screen->SetCurItem( NULL );
|
|
screen->ReplaceWires( s_OldWiresList );
|
|
Panel->Refresh();
|
|
}
|
|
else
|
|
{
|
|
SCH_EDIT_FRAME* parent = ( SCH_EDIT_FRAME* ) Panel->GetParent();
|
|
parent->SetRepeatItem( NULL );
|
|
}
|
|
|
|
// Clear flags used in edit functions.
|
|
screen->ClearDrawingState();
|
|
}
|
|
|
|
|
|
/* Repeat the last item placement.
|
|
* Bus lines, text, labels
|
|
* Labels that end with a number will be incremented.
|
|
*/
|
|
void SCH_EDIT_FRAME::RepeatDrawItem( wxDC* DC )
|
|
{
|
|
if( m_itemToRepeat == NULL )
|
|
return;
|
|
|
|
m_itemToRepeat = m_itemToRepeat->Clone();
|
|
|
|
if( m_itemToRepeat->Type() == SCH_COMPONENT_T ) // If repeat component then put in move mode
|
|
{
|
|
wxPoint pos = GetScreen()->GetCrossHairPosition() -
|
|
( (SCH_COMPONENT*) m_itemToRepeat )->GetPosition();
|
|
m_itemToRepeat->SetFlags( IS_NEW );
|
|
( (SCH_COMPONENT*) m_itemToRepeat )->m_TimeStamp = GetTimeStamp();
|
|
m_itemToRepeat->Move( pos );
|
|
m_itemToRepeat->Draw( DrawPanel, DC, wxPoint( 0, 0 ), g_XorMode );
|
|
MoveItem( m_itemToRepeat, DC );
|
|
return;
|
|
}
|
|
|
|
m_itemToRepeat->Move( wxPoint( g_RepeatStep.GetWidth(), g_RepeatStep.GetHeight() ) );
|
|
|
|
if( m_itemToRepeat->CanIncrementLabel() )
|
|
( (SCH_TEXT*) m_itemToRepeat )->IncrementLabel();
|
|
|
|
if( m_itemToRepeat )
|
|
{
|
|
m_itemToRepeat->SetNext( GetScreen()->GetDrawItems() );
|
|
GetScreen()->SetDrawItems( m_itemToRepeat );
|
|
GetScreen()->TestDanglingEnds();
|
|
m_itemToRepeat->Draw( DrawPanel, DC, wxPoint( 0, 0 ), GR_DEFAULT_DRAWMODE );
|
|
SaveCopyInUndoList( m_itemToRepeat, UR_NEW );
|
|
m_itemToRepeat->ClearFlags();
|
|
}
|
|
}
|