kicad/include/base_screen.h

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/*
* This program source code file is part of KiCad, a free EDA CAD application.
*
* Copyright (C) 2015 Jean-Pierre Charras, jaen-pierre.charras@gipsa-lab.inpg.com
* Copyright (C) 2011 Wayne Stambaugh <stambaughw@verizon.net>
* Copyright (C) 1992-2020 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
*/
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/**
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* @file base_screen.h
* @brief BASE_SCREEN class implementation.
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*/
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#ifndef BASE_SCREEN_H
#define BASE_SCREEN_H
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#include <eda_draw_frame.h>
#include <base_struct.h>
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#include <undo_redo_container.h>
#include <common.h>
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/**
* BASE_SCREEN
* handles how to draw a screen (a board, a schematic ...)
*/
class BASE_SCREEN : public EDA_ITEM
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{
private:
bool m_FlagModified; ///< Indicates current drawing has been modified.
bool m_FlagSave; ///< Indicates automatic file save.
int m_UndoRedoCountMax; ///< undo/Redo command Max depth
/**
* The cross hair position in logical (drawing) units. The cross hair is not the cursor
* position. It is an addition indicator typically drawn on grid to indicate to the
* user where the current action will be performed.
*/
wxPoint m_crossHairPosition;
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public:
static wxString m_PageLayoutDescrFileName; ///< the name of the page layout descr file,
///< or emty to used the default pagelayout
wxPoint m_DrawOrg; ///< offsets for drawing the circuit on the screen
VECTOR2D m_LocalOrigin; ///< Relative Screen cursor coordinate (on grid)
///< in user units. (coordinates from last reset position)
wxPoint m_StartVisu; /**< Coordinates in drawing units of the current
* view position (upper left corner of device)
*/
bool m_Center; /**< Center on screen. If true (0.0) is centered
* on screen coordinates can be < 0 and
* > 0 except for schematics.
* false: when coordinates can only be >= 0
* Schematic */
VECTOR2D m_ScrollCenter; ///< Current scroll center point in logical units.
bool m_Initialized;
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// Undo/redo list of commands
UNDO_REDO_CONTAINER m_UndoList; ///< Objects list for the undo command (old data)
UNDO_REDO_CONTAINER m_RedoList; ///< Objects list for the redo command (old data)
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int m_ScreenNumber;
int m_NumberOfScreens;
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public:
BASE_SCREEN( EDA_ITEM* aParent, KICAD_T aType = SCREEN_T );
BASE_SCREEN( const wxSize& aPageSizeIU, KICAD_T aType = SCREEN_T ) :
BASE_SCREEN( nullptr, aType )
{
InitDataPoints( aPageSizeIU );
}
BASE_SCREEN( KICAD_T aType = SCREEN_T ) :
BASE_SCREEN( nullptr, aType )
{}
~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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/**
* Function ClearUndoORRedoList (virtual).
* this function must remove the aItemCount old commands from aList
* 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
* is a virtual pure function that must be created for SCH_SCREEN and
* PCB_SCREEN
* @param aList = the UNDO_REDO_CONTAINER of commands
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* @param aItemCount = number of old commands to delete. -1 to remove all
* old commands this will empty the list of commands.
* Commands are deleted from the older to the last.
*/
virtual void ClearUndoORRedoList( UNDO_REDO_CONTAINER& aList, int aItemCount = -1 )
{ }
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/**
* Function ClearUndoRedoList
* clear undo and redo list, using ClearUndoORRedoList()
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* picked items are deleted by ClearUndoORRedoList() according to their
* status
*/
virtual void ClearUndoRedoList();
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/**
* Function PushCommandToUndoList
* 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
* reached
* ( using ClearUndoORRedoList)
*/
virtual void PushCommandToUndoList( PICKED_ITEMS_LIST* aItem );
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/**
* Function PushCommandToRedoList
* 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
* reached
* ( using ClearUndoORRedoList)
*/
virtual void PushCommandToRedoList( PICKED_ITEMS_LIST* aItem );
/** PopCommandFromUndoList
* return the last command to undo and remove it from list
* nothing is deleted.
*/
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virtual PICKED_ITEMS_LIST* PopCommandFromUndoList();
/** PopCommandFromRedoList
* return the last command to undo and remove it from list
* nothing is deleted.
*/
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virtual PICKED_ITEMS_LIST* PopCommandFromRedoList();
int GetUndoCommandCount() const
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{
return m_UndoList.m_CommandsList.size();
}
int GetRedoCommandCount() const
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{
return m_RedoList.m_CommandsList.size();
}
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int GetMaxUndoItems() const { return m_UndoRedoCountMax; }
void SetMaxUndoItems( int aMax )
{
if( aMax >= 0 && aMax < ABS_MAX_UNDO_ITEMS )
m_UndoRedoCountMax = aMax;
else
{
wxFAIL_MSG( "Maximum undo items not within limits" );
m_UndoRedoCountMax = DEFAULT_MAX_UNDO_ITEMS;
}
}
void SetModify() { m_FlagModified = true; }
void ClrModify() { m_FlagModified = false; }
void SetSave() { m_FlagSave = true; }
void ClrSave() { m_FlagSave = false; }
bool IsModify() const { return m_FlagModified; }
bool IsSave() const { return m_FlagSave; }
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/**
* Function GetClass
* returns the class name.
* @return wxString
*/
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virtual wxString GetClass() const override
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{
return wxT( "BASE_SCREEN" );
}
#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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#endif // BASE_SCREEN_H