237 lines
8.1 KiB
C++
237 lines
8.1 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) 2015 Jean-Pierre Charras, jaen-pierre.charras@gipsa-lab.inpg.com
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* Copyright (C) 2011 Wayne Stambaugh <stambaughw@verizon.net>
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* Copyright (C) 1992-2020 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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/**
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* @file base_screen.h
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* @brief BASE_SCREEN class implementation.
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*/
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#ifndef BASE_SCREEN_H
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#define BASE_SCREEN_H
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#include <eda_draw_frame.h>
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#include <base_struct.h>
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#include <undo_redo_container.h>
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#include <common.h>
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/**
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* BASE_SCREEN
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* handles how to draw a screen (a board, a schematic ...)
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*/
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class BASE_SCREEN : public EDA_ITEM
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{
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private:
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bool m_FlagModified; ///< Indicates current drawing has been modified.
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bool m_FlagSave; ///< Indicates automatic file save.
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int m_UndoRedoCountMax; ///< undo/Redo command Max depth
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/**
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* The cross hair position in logical (drawing) units. The cross hair is not the cursor
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* position. It is an addition indicator typically drawn on grid to indicate to the
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* user where the current action will be performed.
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*/
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wxPoint m_crossHairPosition;
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double m_Zoom; ///< Current zoom coefficient.
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public:
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static wxString m_PageLayoutDescrFileName; ///< the name of the page layout descr file,
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///< or emty to used the default pagelayout
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wxPoint m_DrawOrg; ///< offsets for drawing the circuit on the screen
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VECTOR2D m_LocalOrigin; ///< Relative Screen cursor coordinate (on grid)
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///< in user units. (coordinates from last reset position)
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wxPoint m_StartVisu; /**< Coordinates in drawing units of the current
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* view position (upper left corner of device)
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*/
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bool m_Center; /**< Center on screen. If true (0.0) is centered
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* on screen coordinates can be < 0 and
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* > 0 except for schematics.
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* false: when coordinates can only be >= 0
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* Schematic */
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VECTOR2D m_ScrollCenter; ///< Current scroll center point in logical units.
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bool m_Initialized;
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// Undo/redo list of commands
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UNDO_REDO_CONTAINER m_UndoList; ///< Objects list for the undo command (old data)
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UNDO_REDO_CONTAINER m_RedoList; ///< Objects list for the redo command (old data)
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int m_ScreenNumber;
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int m_NumberOfScreens;
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std::vector<double> m_ZoomList; ///< standard zoom (i.e. scale) coefficients.
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public:
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BASE_SCREEN( EDA_ITEM* aParent, KICAD_T aType = SCREEN_T );
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BASE_SCREEN( KICAD_T aType = SCREEN_T ) :
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BASE_SCREEN( nullptr, aType )
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{}
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~BASE_SCREEN() override { }
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void InitDataPoints( const wxSize& aPageSizeInternalUnits );
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/* general Undo/Redo command control */
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/**
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* Function ClearUndoORRedoList (virtual).
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* this function must remove the aItemCount old commands from aList
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* and delete commands, pickers and picked items if needed
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* Because picked items must be deleted only if they are not in use, this
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* is a virtual pure function that must be created for SCH_SCREEN and
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* PCB_SCREEN
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* @param aList = the UNDO_REDO_CONTAINER of commands
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* @param aItemCount = number of old commands to delete. -1 to remove all
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* old commands this will empty the list of commands.
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* Commands are deleted from the older to the last.
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*/
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virtual void ClearUndoORRedoList( UNDO_REDO_CONTAINER& aList, int aItemCount = -1 ) = 0;
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/**
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* Function ClearUndoRedoList
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* clear undo and redo list, using ClearUndoORRedoList()
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* picked items are deleted by ClearUndoORRedoList() according to their
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* status
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*/
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virtual void ClearUndoRedoList();
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/**
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* Function PushCommandToUndoList
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* add a command to undo in undo list
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* delete the very old commands when the max count of undo commands is
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* reached
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* ( using ClearUndoORRedoList)
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*/
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virtual void PushCommandToUndoList( PICKED_ITEMS_LIST* aItem );
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/**
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* Function PushCommandToRedoList
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* add a command to redo in redo list
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* delete the very old commands when the max count of redo commands is
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* reached
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* ( using ClearUndoORRedoList)
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*/
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virtual void PushCommandToRedoList( PICKED_ITEMS_LIST* aItem );
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/** PopCommandFromUndoList
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* return the last command to undo and remove it from list
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* nothing is deleted.
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*/
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virtual PICKED_ITEMS_LIST* PopCommandFromUndoList();
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/** PopCommandFromRedoList
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* return the last command to undo and remove it from list
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* nothing is deleted.
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*/
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virtual PICKED_ITEMS_LIST* PopCommandFromRedoList();
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int GetUndoCommandCount() const
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{
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return m_UndoList.m_CommandsList.size();
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}
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int GetRedoCommandCount() const
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{
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return m_RedoList.m_CommandsList.size();
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}
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int GetMaxUndoItems() const { return m_UndoRedoCountMax; }
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void SetMaxUndoItems( int aMax )
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{
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if( aMax >= 0 && aMax < ABS_MAX_UNDO_ITEMS )
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m_UndoRedoCountMax = aMax;
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else
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{
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wxFAIL_MSG( "Maximum undo items not within limits" );
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m_UndoRedoCountMax = DEFAULT_MAX_UNDO_ITEMS;
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}
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}
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void SetModify() { m_FlagModified = true; }
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void ClrModify() { m_FlagModified = false; }
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void SetSave() { m_FlagSave = true; }
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void ClrSave() { m_FlagSave = false; }
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bool IsModify() const { return m_FlagModified; }
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bool IsSave() const { return m_FlagSave; }
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//----<zoom stuff>---------------------------------------------------------
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/**
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* Function GetZoom
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* returns the current "zoom factor", which is a measure of
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* "internal units per device unit", or "world units per device unit".
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* A device unit is typically a pixel.
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*/
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double GetZoom() const { return m_Zoom; }
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/**
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* Function SetZoom
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* adjusts the current zoom factor.
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*
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* @param iu_per_du is the number of internal units (world units) per
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* device units (pixels typically).
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*/
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virtual bool SetZoom( double iu_per_du );
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/**
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* Function GetMaxAllowedZoom
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* returns the maximum allowed zoom factor, which was established as the last entry
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* in m_ZoomList.
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*/
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double GetMaxAllowedZoom() const { return m_ZoomList.size() ? *m_ZoomList.rbegin() : 1.0; }
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/**
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* Function GetMinAllowedZoom
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* returns the minimum allowed zoom factor, which was established as the first entry
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* in m_ZoomList.
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*/
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double GetMinAllowedZoom() const { return m_ZoomList.size() ? *m_ZoomList.begin() : 1.0; }
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/**
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* Function GetClass
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* returns the class name.
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* @return wxString
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*/
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virtual wxString GetClass() const override
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{
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return wxT( "BASE_SCREEN" );
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}
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#if defined(DEBUG)
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void Show( int nestLevel, std::ostream& os ) const override;
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#endif
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};
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#endif // BASE_SCREEN_H
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