kicad/eeschema/tools/ee_selection_tool.h

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