75 lines
2.1 KiB
C++
75 lines
2.1 KiB
C++
/******************************************************/
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/* Routines for locating an element of a schematic. */
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/******************************************************/
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#include "fctsys.h"
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#include "common.h"
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#include "trigo.h"
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#include "macros.h"
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#include "class_sch_screen.h"
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#include "general.h"
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#include "protos.h"
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#include "class_library.h"
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#include "sch_bus_entry.h"
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#include "sch_marker.h"
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#include "sch_junction.h"
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#include "sch_component.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_sheet.h"
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#include "lib_pin.h"
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#include "template_fieldnames.h"
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/**
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* Search the smaller (considering its area) component under the mouse
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* cursor or the pcb cursor
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*
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* If more than 1 component is found, a pointer to the smaller component is
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* returned
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*/
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SCH_COMPONENT* LocateSmallestComponent( SCH_SCREEN* Screen )
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{
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double area = 0.0; // Quiet compiler
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EDA_Rect rect;
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PICKED_ITEMS_LIST itemList;
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SCH_COMPONENT* component = NULL;
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SCH_COMPONENT* lastcomponent = NULL;
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if( Screen->GetItems( Screen->RefPos( true ), itemList, COMPONENT_T ) == 0 )
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{
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if( Screen->GetItems( Screen->GetCrossHairPosition(), itemList, COMPONENT_T ) == 0 )
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return NULL;
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}
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if( itemList.GetCount() == 1 )
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return (SCH_COMPONENT*) itemList.GetPickedItem( 0 );
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for( size_t i = 0; i < itemList.GetCount(); i++ )
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{
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component = (SCH_COMPONENT*) itemList.GetPickedItem( i );
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if( lastcomponent == NULL ) // First component
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{
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lastcomponent = component;
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rect = lastcomponent->GetBoundingBox();
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area = ABS( (double) rect.GetWidth() * (double) rect.GetHeight() );
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}
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else
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{
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rect = component->GetBoundingBox();
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double tmp = ABS( (double) rect.GetWidth() * (double) rect.GetHeight() );
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if( area > tmp ) // a smaller component is found
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{
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area = tmp;
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lastcomponent = component;
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}
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}
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}
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return lastcomponent;
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}
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