kicad/pcbnew/dragsegm.cpp

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/*********************************/
/* functions used to drag tracks */
/*********************************/
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/* Fichier dragsegm.cpp */
#include <fctsys.h>
#include <common.h>
#include <gr_basic.h>
#include <class_drawpanel.h>
#include <wxBasePcbFrame.h>
#include <drag.h>
#include <pcbnew.h>
#include <class_module.h>
#include <class_board.h>
/* a list of DRAG_SEGM items used to move or drag tracks */
std::vector<DRAG_SEGM> g_DragSegmentList;
/* helper class to handle a list of track segments to drag or move
*/
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DRAG_SEGM::DRAG_SEGM( TRACK* segm )
{
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m_Segm = segm;
m_StartInitialValue = m_Segm->m_Start;
m_EndInitialValue = m_Segm->m_End;
m_Pad_Start = m_Pad_End = NULL;
m_Flag = 0;
}
/* Redraw the list of segments starting in g_DragSegmentList, while moving a footprint */
void DrawSegmentWhileMovingFootprint( EDA_DRAW_PANEL* panel, wxDC* DC )
{
if( g_DragSegmentList.size() == 0 )
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return;
for( unsigned ii = 0; ii < g_DragSegmentList.size(); ii++ )
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{
wxPoint pos;
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TRACK* track = g_DragSegmentList[ii].m_Segm;
#ifndef USE_WX_OVERLAY
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track->Draw( panel, DC, GR_XOR ); // erase from screen at old position
#endif
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D_PAD* pad = g_DragSegmentList[ii].m_Pad_Start;
if( pad )
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{
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pos = pad->GetPosition() - g_Offset_Module;
track->m_Start = pos;
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}
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pad = g_DragSegmentList[ii].m_Pad_End;
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if( pad )
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{
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pos = pad->GetPosition() - g_Offset_Module;
track->m_End = pos;
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}
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track->Draw( panel, DC, GR_XOR );
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}
}
/** Build the list of track segments connected to pads of a given module
* by populate the std::vector<DRAG_SEGM> g_DragSegmentList
* For each selected track segment set the EDIT flag
* and redraw them in EDIT mode (sketch mode)
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*/
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void Build_Drag_Liste( EDA_DRAW_PANEL* panel, wxDC* DC, MODULE* aModule )
{
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for( D_PAD* pad = aModule->m_Pads; pad; pad = pad->Next() )
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{
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Build_1_Pad_SegmentsToDrag( panel, DC, pad );
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}
return;
}
/** Build the list of track segments connected to a given pad
* by populate the std::vector<DRAG_SEGM> g_DragSegmentList
* For each selected track segment set the EDIT flag
* and redraw them in EDIT mode (sketch mode)
* Net codes must be OK.
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*/
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void Build_1_Pad_SegmentsToDrag( EDA_DRAW_PANEL* panel, wxDC* DC, D_PAD* aPad )
{
BOARD* pcb = ( (PCB_BASE_FRAME*)( panel->GetParent() ) )->GetBoard();
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int net_code = aPad->GetNet();
TRACK* track = pcb->m_Track->GetStartNetCode( net_code );
wxPoint pos = aPad->GetPosition();
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int layerMask = aPad->GetLayerMask();
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for( ; track; track = track->Next() )
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{
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if( track->GetNet() != net_code )
break;
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if( ( layerMask & track->ReturnMaskLayer() ) == 0 )
continue;
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if( pos == track->m_Start )
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{
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AddSegmentToDragList( panel, DC, STARTPOINT, track );
g_DragSegmentList.back().m_Pad_Start = aPad;
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}
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if( pos == track->m_End )
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{
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AddSegmentToDragList( panel, DC, ENDPOINT, track );
g_DragSegmentList.back().m_Pad_End = aPad;
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}
}
}
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/* Add the segment"Track" to the drag list, and erase it from screen
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* flag = STARTPOINT (if the point to drag is the start point of Track) or ENDPOINT
*/
void AddSegmentToDragList( EDA_DRAW_PANEL* panel, wxDC* DC, int flag, TRACK* Track )
{
DRAG_SEGM wrapper( Track );
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if( (flag & STARTPOINT) )
wrapper.m_Flag |= 1;
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if( (flag & ENDPOINT) )
wrapper.m_Flag |= 2;
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Track->Draw( panel, DC, GR_XOR );
Track->SetState( IN_EDIT, ON );
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if( (flag & STARTPOINT) )
Track->SetFlags( STARTPOINT );
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if( (flag & ENDPOINT) )
Track->SetFlags( ENDPOINT );
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Track->Draw( panel, DC, GR_XOR );
g_DragSegmentList.push_back( wrapper );
}
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/* Build the list of tracks connected to the ref point
* Net codes must be up to date, because only tracks having the right net code are tested.
* @param aRefPos = reference point of connection
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*/
void Collect_TrackSegmentsToDrag( EDA_DRAW_PANEL* panel, wxDC* DC,
wxPoint& aRefPos, int LayerMask, int net_code )
{
BOARD* pcb = ( (PCB_BASE_FRAME*)( panel->GetParent() ) )->GetBoard();
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TRACK* track = pcb->m_Track->GetStartNetCode( net_code );
for( ; track; track = track->Next() )
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{
if( track->GetNet() != net_code ) // not the same netcodenet code: all candidates tested
break;
if( ( LayerMask & track->ReturnMaskLayer() ) == 0 )
continue; // Cannot be connected, not on the same layer
if( track->IsDragging() )
continue; // already put in list
int flag = 0;
if( (track->m_Start == aRefPos) && ((track->GetFlags() & STARTPOINT) == 0) )
flag |= STARTPOINT;
if( track->m_End == aRefPos && ((track->GetFlags() & ENDPOINT) == 0) )
flag |= ENDPOINT;
// Note: vias will be flagged with both STARTPOINT and ENDPOINT
// and must not be entered twice.
if( flag )
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{
AddSegmentToDragList( panel, DC, flag, track );
// If a connected via is found at location aRefPos,
// collect also tracks connected by this via.
if( track->Type() == PCB_VIA_T )
Collect_TrackSegmentsToDrag( panel, DC, aRefPos, track->ReturnMaskLayer(),
net_code );
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}
}
}
/**
* Function EraseDragList
* clear the .m_Flags of all track segments found in g_DragSegmentList
* and clear the list.
* the memory is not freed and will be reused when creating a new list
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*/
void EraseDragList()
{
for( unsigned ii = 0; ii < g_DragSegmentList.size(); ii++ )
g_DragSegmentList[ii].m_Segm->ClearFlags();
g_DragSegmentList.clear();
}