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) 2019-2021 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/tool_interactive.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;
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;
};
class EE_SELECTION_TOOL : public TOOL_INTERACTIVE
{
public:
EE_SELECTION_TOOL();
~EE_SELECTION_TOOL();
/// @copydoc TOOL_BASE::Init()
bool Init() override;
/// @copydoc TOOL_BASE::Reset()
void Reset( RESET_REASON aReason ) override;
int UpdateMenu( const TOOL_EVENT& aEvent );
/**
* The main loop.
*/
int Main( const TOOL_EVENT& aEvent );
void OnIdle( wxIdleEvent& aEvent );
/**
* Return the set of currently selected items.
*/
EE_SELECTION& GetSelection();
/**
* Return either an existing selection (filtered), or the selection at the current
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* cursor if the existing selection is empty.
*/
EE_SELECTION& RequestSelection( const KICAD_T* aFilterList = EE_COLLECTOR::AllItems );
/**
* This overload of SelectPoint will create an EE_COLLECTOR and collect hits at location aWhere
* before calling the primary SelectPoint method.
*
* @param aWhere is the location where the item(s) should be collected
* @param aItem is set to the newly selected item if only one was selected, otherwise is
* unchanged.
* @param aSelectionCancelledFlag 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
*/
bool SelectPoint( const VECTOR2I& aWhere, const KICAD_T* aFilterList = EE_COLLECTOR::AllItems,
EDA_ITEM** aItem = nullptr, bool* aSelectionCancelledFlag = nullptr,
bool aCheckLocked = false, bool aAdd = false, bool aSubtract = false,
bool aExclusiveOr = false );
int AddItemToSel( const TOOL_EVENT& aEvent );
void AddItemToSel( EDA_ITEM* aItem, bool aQuietMode = false );
int AddItemsToSel( const TOOL_EVENT& aEvent );
void AddItemsToSel( EDA_ITEMS* aList, bool aQuietMode = false );
int RemoveItemFromSel( const TOOL_EVENT& aEvent );
void RemoveItemFromSel( EDA_ITEM* aItem, bool aQuietMode = false );
int RemoveItemsFromSel( const TOOL_EVENT& aEvent );
void RemoveItemsFromSel( EDA_ITEMS* aList, bool aQuietMode = false );
/**
* A safer version of RemoveItemsFromSel( EDA_ITEMS ) which doesn't require the items to
* still exist.
*/
void RemoveItemsFromSel( std::vector<KIID>* aList, bool aQuietMode = false );
void BrightenItem( EDA_ITEM* aItem );
void UnbrightenItem( EDA_ITEM* aItem );
void SelectHighlightItem( EDA_ITEM* aItem ) { highlight( aItem, SELECTED ); }
///< Find (but don't select) node under cursor
EDA_ITEM* GetNode( VECTOR2I aPosition );
///< Select node under cursor
int SelectNode( const TOOL_EVENT& aEvent );
///< If node selected then expand to connection, otherwise select connection under cursor
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 );
void ClearSelection();
/**
* Check conditions for an item to be selected.
*
* @return True if the item fulfills conditions to be selected.
*/
bool Selectable( const EDA_ITEM* aItem, 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 );
/**
* Show a popup menu to trim the COLLECTOR passed as aEvent's parameter down to a single
* item.
*
* @note This routine **does not** modify the selection.
*/
int SelectionMenu( const TOOL_EVENT& aEvent );
/**
* 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();
/**
* Select one or more items at the location given by parameter aWhere.
*
* This method does not attempt to disambiguate multiple items and is simply "collecting"
*
* @param aCollector is the collector object that will store found item(s)
* @param aWhere is the place where the item should be selected.
* @param aFilterList is a list of items that are acceptable for collection
* @param aCheckLocked indicates if locked items should be excluded.
*/
bool CollectHits( EE_COLLECTOR& aCollector, const VECTOR2I& aWhere,
const KICAD_T* aFilterList = EE_COLLECTOR::AllItems );
private:
/**
* Apply rules to narrow the collection down to selectable objects, and then heuristics
* to try and narrow it to a single object.
*/
void narrowSelection( EE_COLLECTOR& collector, const VECTOR2I& aWhere, bool aCheckLocked );
/**
* This is the primary SelectPoint method that will prompt the user with a menu to disambiguate
* multiple selections and then finish by adding, subtracting or toggling the item(s) to the
* actual selection group.
*
* @param aCollector is an EE_COLLECTOR that already has collected items
* @param aItem is set to the newly selected item if only one was selected, otherwise is
* unchanged.
* @param aSelectionCancelledFlag 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
*/
bool selectPoint( EE_COLLECTOR& aCollector, 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();
/**
* Allow the selection of a single item from a list via pop-up menu. The items are
* highlighted on the canvas when hovered in the menu. The collector is trimmed to
* the picked item.
*
* @return true if an item was picked
*/
bool doSelectionMenu( EE_COLLECTOR* aItems );
/**
* Take necessary action mark an item as selected.
*
* @param aItem is an item to be selected.
*/
void select( EDA_ITEM* aItem );
/**
* Take necessary action mark an item as unselected.
*
* @param aItem is an item to be unselected.
*/
void unselect( EDA_ITEM* aItem );
/**
* Highlight the item visually.
*
* @param aItem is an item to be be highlighted.
* @param aHighlightMode should be either SELECTED or BRIGHTENED
* @param aGroup is the group to add the item to in the BRIGHTENED mode.
*/
void highlight( EDA_ITEM* aItem, int aHighlightMode, EE_SELECTION* aGroup = nullptr );
/**
* Unhighlight the item visually.
*
* @param aItem is an item to be be highlighted.
* @param aHighlightMode should be either SELECTED or BRIGHTENED
* @param aGroup is the group to remove the item from.
*/
void unhighlight( EDA_ITEM* aItem, int aHighlightMode, EE_SELECTION* aGroup = nullptr );
/**
* Set the reference point to the anchor of the top-left item.
*/
void updateReferencePoint();
/**
* @return True if the given point is contained in any of selected items' bounding box.
*/
bool selectionContains( const VECTOR2I& aPoint ) const;
///< Set up handlers for various events.
void setTransitions() override;
private:
/**
* Set the configuration of m_additive, m_subtractive, m_exclusive_or, m_skip_heuristics
* from the state of modifier keys SHIFT, CTRL, ALT and depending on the OS
*/
void setModifiersState( bool aShiftState, bool aCtrlState, bool aAltState );
SCH_BASE_FRAME* m_frame; // Pointer to the parent frame
EE_SELECTION m_selection; // Current state of selection
bool m_additive; // Items should be added to sel (instead of replacing)
bool m_subtractive; // Items should be removed from sel
bool m_exclusive_or; // Items' selection state should be toggled
bool m_multiple; // Multiple selection mode is active
bool m_skip_heuristics; // Show disambuguation menu for all items under the
// cursor rather than trying to narrow them down first
// using heuristics
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