290 lines
11 KiB
C++
290 lines
11 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) 2019 CERN
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* Copyright (C) 2019-2022 KiCad Developers, see AUTHORS.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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#ifndef KICAD_SCH_SELECTION_TOOL_H
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#define KICAD_SCH_SELECTION_TOOL_H
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#include <tool/selection_tool.h>
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#include <tool/action_menu.h>
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#include <tool/tool_menu.h>
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#include <tools/ee_selection.h>
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#include <ee_collectors.h>
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#include <sch_symbol.h>
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#include <gal/cursors.h>
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class SCH_BASE_FRAME;
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class SCH_ITEM;
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class EE_GRID_HELPER;
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namespace KIGFX
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{
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class GAL;
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}
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class EE_CONDITIONS : public SELECTION_CONDITIONS
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{
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public:
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static SELECTION_CONDITION SingleSymbol;
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static SELECTION_CONDITION SingleSymbolOrPower;
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static SELECTION_CONDITION SingleDeMorganSymbol;
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static SELECTION_CONDITION SingleMultiUnitSymbol;
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static SELECTION_CONDITION SingleNonExcludedMarker;
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static SELECTION_CONDITION MultipleSymbolsOrPower;
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};
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class EE_SELECTION_TOOL : public SELECTION_TOOL
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{
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public:
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EE_SELECTION_TOOL();
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~EE_SELECTION_TOOL();
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/// @copydoc TOOL_BASE::Init()
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bool Init() override;
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/// @copydoc TOOL_BASE::Reset()
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void Reset( RESET_REASON aReason ) override;
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/**
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* The main loop.
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*/
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int Main( const TOOL_EVENT& aEvent );
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void OnIdle( wxIdleEvent& aEvent );
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///< Zoom the screen to fit the bounding box for cross probing/selection sync.
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void ZoomFitCrossProbeBBox( const BOX2I& aBBox );
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/**
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* @return the set of currently selected items.
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*/
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EE_SELECTION& GetSelection();
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/**
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* Return either an existing selection (filtered), or the selection at the current cursor
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* position if the existing selection is empty.
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*
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* @param aScanTypes [optional] List of item types that are acceptable for selection.
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* @return either the current selection or, if empty, the selection at the cursor.
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*/
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EE_SELECTION& RequestSelection( const std::vector<KICAD_T>& aScanTypes = { SCH_LOCATE_ANY_T } );
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/**
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* Perform a click-type selection at a point (usually the cursor position).
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*
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* @param aWhere Point from which the selection should be made.
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* @param aScanTypes [optional] List of item types that are acceptable for selection.
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* @param aItem [out, optional] The newly selected item if only one was selected, otherwise
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* unchanged.
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* @param aSelectionCancelledFlag [out] Allows the function to inform its caller that a
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* selection was canceled (for instance, by clicking outside of
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* the disambiguation menu).
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* @param aCheckLocked Indicates if locked items should be excluded.
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* @param aAdd Indicates if found item(s) should be added to the selection.
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* @param aSubtract Indicates if found item(s) should be subtracted from the selection.
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* @param aExclusiveOr Indicates if found item(s) should be toggle in the selection.
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* @return true if the selection was modified.
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*/
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bool SelectPoint( const VECTOR2I& aWhere,
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const std::vector<KICAD_T>& aScanTypes = { SCH_LOCATE_ANY_T },
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EDA_ITEM** aItem = nullptr, bool* aSelectionCancelledFlag = nullptr,
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bool aCheckLocked = false, bool aAdd = false, bool aSubtract = false,
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bool aExclusiveOr = false );
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/**
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* Finds a connected item at a point (usually the cursor position). Iterative process with a
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* decreasing slop factor.
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* @param aPosition Cursor position from which the search should be made.
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* @return a connected item or nullptr.
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*/
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EDA_ITEM* GetNode( const VECTOR2I& aPosition );
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/**
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* Selects the connected item at the current cursor position. Iterative process with a
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* decreasing slop factor.
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*/
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int SelectNode( const TOOL_EVENT& aEvent );
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/**
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* If a connected item is selected then expand the selection to the entire connection,
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* otherwise select connection under the current cursor position.
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*/
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int SelectConnection( const TOOL_EVENT& aEvent );
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///< Clear current selection event handler.
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int ClearSelection( const TOOL_EVENT& aEvent );
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///< Select all visible items in sheet
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int SelectAll( const TOOL_EVENT& aEvent );
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void ClearSelection( bool aQuietMode = false );
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/**
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* Check conditions for an item to be selected.
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*
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* @return True if the item fulfills conditions to be selected.
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*/
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bool Selectable( const EDA_ITEM* aItem, const VECTOR2I* aPos = nullptr,
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bool checkVisibilityOnly = false ) const;
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/**
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* Apply heuristics to try and determine a single object when multiple are found under the
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* cursor.
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*/
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void GuessSelectionCandidates( EE_COLLECTOR& collector, const VECTOR2I& aPos );
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/**
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* Rebuild the selection from the EDA_ITEMs' selection flags.
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*
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* Commonly called after rolling back an undo state to make sure there aren't any stale
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* pointers.
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*/
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void RebuildSelection();
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/**
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* Collect one or more items at a given point. This method does not attempt to disambiguate
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* multiple items and is simply "collecting".
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*
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* @param aCollector [in, out] Provides collection conditions and stores collected items.
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* @param aWhere Point from which the collection should be made.
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* @param aScanTypes [optional] A list of item types that are acceptable for collection.
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*/
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bool CollectHits( EE_COLLECTOR& aCollector, const VECTOR2I& aWhere,
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const std::vector<KICAD_T>& aScanTypes = { SCH_LOCATE_ANY_T } );
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///< Set selection to items passed by parameter.
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///< Zooms to fit, if enabled.
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void SyncSelection( const std::optional<SCH_SHEET_PATH>& targetSheetPath, SCH_ITEM* focusItem,
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const std::vector<SCH_ITEM*>& items );
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protected:
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SELECTION& selection() override { return m_selection; }
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private:
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OPT_TOOL_EVENT autostartEvent( TOOL_EVENT* aEvent, EE_GRID_HELPER& aGrid, SCH_ITEM* aItem );
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/**
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* Apply rules to narrow the collection down to selectable objects, and then heuristics
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* to try and narrow it to a single object.
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*
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* @param aCollector [in, out] Provides collection conditions and stores collected items.
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* @param aWhere point where we should narrow (if relevant)
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* @param aCheckLocked If false, remove locked elements from #collector
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* @param aSelectedOnly If true, remove non-selected items from #collector
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*/
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void narrowSelection( EE_COLLECTOR& collector, const VECTOR2I& aWhere, bool aCheckLocked,
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bool aSelectedOnly = false );
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/**
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* Perform a click-type selection at a point (usually the cursor position).
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*
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* @param aCollector [in, out] Provides collection conditions and stores collected items.
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* @param aWhere Point from which the selection should be made.
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* @param aItem [out, optional] The newly selected item if only one was selected, otherwise
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* unchanged.
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* @param aSelectionCancelledFlag [out] Allows the function to inform its caller that a
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* selection was canceled (for instance, by clicking outside of
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* the disambiguation menu).
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* @param aAdd Indicates if found item(s) should be added to the selection.
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* @param aSubtract Indicates if found item(s) should be subtracted from the selection.
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* @param aExclusiveOr Indicates if found item(s) should be toggle in the selection.
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* @return true if the selection was modified.
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*/
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bool selectPoint( EE_COLLECTOR& aCollector, const VECTOR2I& aWhere, EDA_ITEM** aItem = nullptr,
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bool* aSelectionCancelledFlag = nullptr, bool aAdd = false,
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bool aSubtract = false, bool aExclusiveOr = false );
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/**
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* Handle drawing a selection box that allows one to select many items at the same time.
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*
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* @return true if the function was canceled (i.e. CancelEvent was received).
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*/
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bool selectMultiple();
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/**
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* Handle disambiguation actions including displaying the menu.
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*/
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int disambiguateCursor( const TOOL_EVENT& aEvent );
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/**
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* Take necessary action to mark an item as selected.
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*
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* @param aItem The item to be selected.
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*/
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void select( EDA_ITEM* aItem ) override;
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/**
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* Take necessary action to mark an item as unselected.
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*
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* @param aItem The item to be unselected.
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*/
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void unselect( EDA_ITEM* aItem ) override;
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/**
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* Highlight the item visually.
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*
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* @param aItem The item to be highlighted.
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* @param aHighlightMode Either SELECTED or BRIGHTENED
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* @param aGroup [otpional] A group to add the item to.
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*/
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void highlight( EDA_ITEM* aItem, int aHighlightMode, SELECTION* aGroup = nullptr ) override;
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/**
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* Unhighlight the item visually.
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*
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* @param aItem is an item to be highlighted.
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* @param aHighlightMode should be either SELECTED or BRIGHTENED
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* @param aGroup [optional] A group to remove the item from.
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*/
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void unhighlight( EDA_ITEM* aItem, int aHighlightMode, SELECTION* aGroup = nullptr ) override;
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/**
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* Set the reference point to the anchor of the top-left item.
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*/
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void updateReferencePoint();
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/**
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* @return true if the given point is contained in any of selected items' bounding boxes.
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*/
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bool selectionContains( const VECTOR2I& aPoint ) const;
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///< Set up handlers for various events.
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void setTransitions() override;
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private:
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SCH_BASE_FRAME* m_frame; // Pointer to the parent frame
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EE_SELECTION m_selection; // Current state of selection
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KICURSOR m_nonModifiedCursor; // Cursor in the absence of shift/ctrl/alt
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bool m_isSymbolEditor; // True when the symbol editor is the parent frame
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bool m_isSymbolViewer; // True when the symbol browser is the parent frame
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int m_unit; // Fixed unit filter (for symbol editor)
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int m_convert; // Fixed DeMorgan filter (for symbol editor)
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};
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#endif //KICAD_SCH_SELECTION_TOOL_H
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