kicad/pcbnew/tools/selection_tool.h

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/*
* This program source code file is part of KiCad, a free EDA CAD application.
*
* Copyright (C) 2013-2017 CERN
* @author Tomasz Wlostowski <tomasz.wlostowski@cern.ch>
* @author Maciej Suminski <maciej.suminski@cern.ch>
* Copyright (C) 2017-2019 KiCad Developers, see CHANGELOG.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 __SELECTION_TOOL_H
#define __SELECTION_TOOL_H
#include <memory>
#include <math/vector2d.h>
#include <tools/pcb_tool_base.h>
#include <tool/action_menu.h>
#include <tools/pcbnew_selection.h>
#include <tools/pcb_selection_conditions.h>
#include <tool/tool_menu.h>
class PCB_BASE_FRAME;
class BOARD_ITEM;
class GENERAL_COLLECTOR;
namespace KIGFX
{
class GAL;
}
typedef void (*CLIENT_SELECTION_FILTER)( const VECTOR2I&, GENERAL_COLLECTOR& );
/**
* Class SELECTION_TOOL
*
* Our sample selection tool: currently supports:
* - pick single objects (click LMB)
* - add objects to existing selection (Shift+LMB)
* - draw selection box (drag LMB)
* - handles MODULEs properly (i.e. selects either MODULE or its PADs, TEXTs, etc.)
* - takes into account high-contrast & layer visibility settings
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* - invokes InteractiveEdit tool when user starts to drag selected items
*/
class SELECTION_TOOL : public PCB_TOOL_BASE
{
public:
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SELECTION_TOOL();
~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;
/**
* Function Main()
*
* The main loop.
*/
int Main( const TOOL_EVENT& aEvent );
/**
* Function GetSelection()
*
* Returns the set of currently selected items.
*/
PCBNEW_SELECTION& GetSelection();
/**
* Function RequestSelection()
*
* Returns the current selection set, filtered according to aFlags
* and aClientFilter.
* If the set is empty, performs the legacy-style hover selection.
* @param aFiltered is an optional vector, that is filled with items removed by the filter
*/
PCBNEW_SELECTION& RequestSelection( CLIENT_SELECTION_FILTER aClientFilter,
std::vector<BOARD_ITEM*>* aFiltered = nullptr, bool aConfirmLockedItems = false );
///> Checks if the user has agreed to modify locked items for the given selection.
SELECTION_LOCK_FLAGS CheckLock();
///> Select a single item under cursor event handler.
int CursorSelection( const TOOL_EVENT& aEvent );
///> Clear current selection event handler.
int ClearSelection( const TOOL_EVENT& aEvent );
void ClearSelection( bool aQuietMode = false );
///> Item selection event handler.
int SelectItem( const TOOL_EVENT& aEvent );
void AddItemToSel( BOARD_ITEM* aItem, bool aQuietMode = false );
///> Multiple item selection event handler
int SelectItems( const TOOL_EVENT& aEvent );
///> Item unselection event handler.
int UnselectItem( const TOOL_EVENT& aEvent );
void RemoveItemFromSel( BOARD_ITEM* aItem, bool aQuietMode = false );
///> Multiple item unselection event handler
int UnselectItems( const TOOL_EVENT& aEvent );
void BrightenItem( BOARD_ITEM* aItem );
void UnbrightenItem( BOARD_ITEM* aItem );
/**
* Function selectable()
* Checks conditions for an item to be selected.
*
* @return True if the item fulfills conditions to be selected.
*/
bool Selectable( const BOARD_ITEM* aItem, bool checkVisibilityOnly = false ) const;
/**
* Function guessSelectionCandidates()
* Tries to guess best selection candidates in case multiple items are clicked, by doing
* some brain-dead heuristics.
* @param aCollector is the collector that has a list of items to be queried.
* @param aWhere is the selection point to consider
*/
void GuessSelectionCandidates( GENERAL_COLLECTOR& aCollector, const VECTOR2I& aWhere ) const;
/**
* Function SelectionMenu()
* Shows 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 );
/**
* Rebuilds 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();
///> Sets up handlers for various events.
void setTransitions() override;
///> Zooms the screen to center and fit the current selection.
void zoomFitSelection();
private:
/**
* Function selectPoint()
* Selects an item pointed by the parameter aWhere. If there is more than one item at that
* place, there is a menu displayed that allows one to choose the item.
*
* @param aWhere is the place where the item should be selected.
* @param aOnDrag indicates whether a drag operation is being performed.
* @param aSelectionCancelledFlag allows the function to inform its caller that a selection
* was cancelled (for instance, by clicking outside of the disambiguation menu).
* @param aClientFilter allows the client to perform tool- or action-specific filtering.
* @return True if an item was selected, false otherwise.
*/
bool selectPoint( const VECTOR2I& aWhere, bool aOnDrag = false,
bool* aSelectionCancelledFlag = NULL,
CLIENT_SELECTION_FILTER aClientFilter = NULL );
/**
* Function selectCursor()
* Selects an item under the cursor unless there is something already selected or aSelectAlways
* is true.
* @param aForceSelect forces to select an item even if there is an item already selected.
* @param aClientFilter allows the client to perform tool- or action-specific filtering.
* @return true if eventually there is an item selected, false otherwise.
*/
bool selectCursor( bool aForceSelect = false,
CLIENT_SELECTION_FILTER aClientFilter = NULL );
/**
* Function selectMultiple()
* Handles drawing a selection box that allows one to select many items at
* the same time.
*
* @return true if the function was cancelled (i.e. CancelEvent was received).
*/
bool selectMultiple();
/**
* Allows 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.
* @param aTitle (optional) Allows the menu to be titled (ie: "Clarify Selection").
* @return true if an item was picked
*/
bool doSelectionMenu( GENERAL_COLLECTOR* aItems, const wxString& aTitle );
/**
* Expands the current track selection to the next boundary (junctions, pads, or all)
*/
int expandConnection( const TOOL_EVENT& aEvent );
/**
* Selects all copper connections belonging to the same net(s) as the
* items in the selection
*/
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int selectNet( const TOOL_EVENT& aEvent );
/**
* Selects connecteed tracks and vias.
*
* @param aStopCondition must be one of JUNCTION_T, PAD_T, or EOT.
*/
void selectConnectedTracks( BOARD_CONNECTED_ITEM& aSourceItem, KICAD_T aStopCondition );
/**
* Selects all items with the given net code
*/
void selectAllItemsOnNet( int aNetCode );
/**
* Selects all items with the given sheet timestamp name
* (the sheet path)
*/
void selectAllItemsOnSheet( wxString& aSheetpath );
///> Selects all modules belonging to same sheet, from Eeschema,
///> using crossprobing
int selectSheetContents( const TOOL_EVENT& aEvent );
///> Selects all modules belonging to same hierarchical sheet
///> as the selected footprint.
int selectSameSheet( const TOOL_EVENT& aEvent );
///> Find dialog callback.
void findCallback( BOARD_ITEM* aItem );
///> Find an item.
int find( const TOOL_EVENT& aEvent );
///> Invoke filter dialog and modify current selection
int filterSelection( const TOOL_EVENT& aEvent );
/**
* Function pickSmallestComponent()
* Allows one to find the smallest (in terms of bounding box area) item from the list.
*
* @param aCollector containes the list of items.
*/
BOARD_ITEM* pickSmallestComponent( GENERAL_COLLECTOR* aCollector );
/**
* Function select()
* Takes necessary action mark an item as selected.
*
* @param aItem is an item to be selected.
*/
void select( BOARD_ITEM* aItem );
/**
* Function unselect()
* Takes necessary action mark an item as unselected.
*
* @param aItem is an item to be unselected.
*/
void unselect( BOARD_ITEM* aItem );
/**
* Function highlight()
* Highlights 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( BOARD_ITEM* aItem, int aHighlightMode, PCBNEW_SELECTION* aGroup = nullptr );
/**
* Function unhighlight()
* Unhighlights 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( BOARD_ITEM* aItem, int aHighlightMode, PCBNEW_SELECTION* aGroup = nullptr );
/**
* Function selectionContains()
* @return True if the given point is contained in any of selected items' bounding box.
*/
bool selectionContains( const VECTOR2I& aPoint ) const;
/**
* Event handler to update the selection VIEW_ITEM.
*/
int updateSelection( const TOOL_EVENT& aEvent );
/**
* Pass the selection to a conditional menu for updating.
*/
int UpdateMenu( const TOOL_EVENT& aEvent );
const GENERAL_COLLECTORS_GUIDE getCollectorsGuide() const;
private:
PCB_BASE_FRAME* m_frame; // Pointer to the parent frame
PCBNEW_SELECTION m_selection; // Current state of selection
bool m_additive; // Items should be added to selection (instead of replacing)
bool m_subtractive; // Items should be removed from selection
bool m_exclusive_or; // Items' selection state should be toggled
bool m_multiple; // Multiple selection mode is active
bool m_skip_heuristics; // Heuristics are not allowed when choosing item under cursor
bool m_locked; // Other tools are not allowed to modify locked items
/// Private state (opaque pointer/compilation firewall)
class PRIV;
std::unique_ptr<PRIV> m_priv;
};
#endif