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kicad/include/class_base_screen.h

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/*
* This program source code file is part of KiCad, a free EDA CAD application.
*
* Copyright (C) 2009 Jean-Pierre Charras, jaen-pierre.charras@gipsa-lab.inpg.com
* Copyright (C) 2011 Wayne Stambaugh <stambaughw@verizon.net>
* Copyright (C) 1992-2011 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
*/
/**
* @file class_base_screen.h
* @brief BASE_SCREEN class implementation.
*/
#ifndef __CLASS_BASE_SCREEN_H__
#define __CLASS_BASE_SCREEN_H__
#include "base_struct.h"
#include "class_undoredo_container.h"
#include "block_commande.h"
#include "common.h"
// Forward declarations:
class Ki_PageDescr;
/* Simple class for handling grid arrays. */
class GRID_TYPE
{
public:
int m_Id;
wxRealPoint m_Size;
GRID_TYPE& operator=( const GRID_TYPE& item )
{
if( this != &item )
{
m_Id = item.m_Id;
m_Size = item.m_Size;
}
return *this;
}
const bool operator==( const GRID_TYPE& item ) const
{
return m_Size == item.m_Size && m_Id == item.m_Id;
}
};
typedef std::vector< GRID_TYPE > GRIDS;
/**
* Class BASE_SCREEN
* handle how to draw a screen (a board, a schematic ...)
*/
class BASE_SCREEN : public EDA_ITEM
{
EDA_ITEMS m_items; ///< The drawing items associated with this screen.
GRIDS m_grids; ///< List of valid grid sizes.
EDA_ITEM* m_drawList; ///< Object list for the screen.
wxString m_fileName; ///< File used to load the screen.
char m_FlagRefreshReq; ///< Indicates that the screen should be redrawn.
bool m_FlagModified; ///< Indicates current drawing has been modified.
bool m_FlagSave; ///< Indicates automatic file save.
EDA_ITEM* m_CurrentItem; ///< Currently selected object
GRID_TYPE m_Grid; ///< Current grid selection.
wxPoint m_scrollCenter; ///< Current scroll center point in logical units.
wxPoint m_MousePosition; ///< Mouse cursor coordinate in logical units.
/**
* 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;
public:
wxPoint m_DrawOrg; /* offsets for drawing the circuit on the screen */
wxPoint m_O_Curseur; /* Relative Screen cursor coordinate (on grid)
* in user units. (coordinates from last reset position)*/
// Scrollbars management:
int m_ScrollPixelsPerUnitX; /* Pixels per scroll unit in the horizontal direction. */
int m_ScrollPixelsPerUnitY; /* Pixels per scroll unit in the vertical direction. */
wxSize m_ScrollbarNumber; /* Current virtual draw area size in scroll units.
* m_ScrollbarNumber * m_ScrollPixelsPerUnit =
* virtual draw area size in pixels */
wxPoint m_ScrollbarPos; /* Current scroll bar position in scroll units. */
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 */
bool m_FirstRedraw;
// 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) */
unsigned m_UndoRedoCountMax; // undo/Redo command Max depth
/* block control */
BLOCK_SELECTOR m_BlockLocate; /* Block description for block commands */
/* Page description */
Ki_PageDescr* m_CurrentSheetDesc;
int m_ScreenNumber;
int m_NumberOfScreen;
wxString m_Title;
wxString m_Date;
wxString m_Revision;
wxString m_Company;
wxString m_Commentaire1;
wxString m_Commentaire2;
wxString m_Commentaire3;
wxString m_Commentaire4;
/* Grid and zoom values. */
wxPoint m_GridOrigin;
wxArrayDouble m_ZoomList; /* Array of standard zoom (i.e. scale) coefficients. */
double m_Zoom; /* Current zoom coefficient. */
bool m_IsPrinting;
public:
BASE_SCREEN( KICAD_T aType = SCREEN_T );
~BASE_SCREEN();
/**
* Function SetCurItem
* sets the currently selected object, m_CurrentItem.
* @param aItem Any object derived from EDA_ITEM
*/
void SetCurItem( EDA_ITEM* aItem ) { m_CurrentItem = aItem; }
EDA_ITEM* GetCurItem() const { return m_CurrentItem; }
/**
* Function GetDrawItems().
*
* @return - A pointer to the first item in the linked list of draw items.
*/
virtual EDA_ITEM* GetDrawItems() const { return m_drawList; }
virtual void SetDrawItems( EDA_ITEM* aItem ) { m_drawList = aItem; }
void InitDatas();
void SetFileName( const wxString& aFileName ) { m_fileName = aFileName; }
wxString GetFileName() const { return m_fileName; }
void SetPageSize( wxSize& aPageSize );
wxSize ReturnPageSize( void );
/**
* Function GetInternalUnits
* @return the screen units scalar.
*
* Default implementation returns scalar used for schematic screen. The
* internal units used by the schematic screen is 1 mil (0.001"). Override
* this in derived classes that require internal units other than 1 mil.
*/
virtual int GetInternalUnits( void );
/**
* Function GetCrossHairPosition
* return the current cross hair position in logical (drawing) coordinates.
* @param aInvertY Inverts the Y axis position.
* @return The cross hair position in drawing coordinates.
*/
wxPoint GetCrossHairPosition( bool aInvertY = false ) const
{
if( aInvertY )
return wxPoint( m_crossHairPosition.x, -m_crossHairPosition.y );
return wxPoint( m_crossHairPosition.x, m_crossHairPosition.y );
}
/**
* Function SetCrossHairPosition
* sets the screen cross hair position to \a aPosition in logical (drawing) units.
* @param aPosition The new cross hair position.
* @param aSnapToGrid Sets the cross hair position to the nearest grid position to
* \a aPosition.
*
*/
void SetCrossHairPosition( const wxPoint& aPosition, bool aSnapToGrid = true );
/* general Undo/Redo command control */
/**
* Function ClearUndoORRedoList (virtual).
* this function must remove the aItemCount old commands from aList
* and delete commands, pickers and picked items if needed
* 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
* @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 ) = 0;
/**
* Function ClearUndoRedoList
* clear undo and redo list, using ClearUndoORRedoList()
* picked items are deleted by ClearUndoORRedoList() according to their
* status
*/
virtual void ClearUndoRedoList();
/**
* Function PushCommandToUndoList
* add a command to undo in undo list
* delete the very old commands when the max count of undo commands is
* reached
* ( using ClearUndoORRedoList)
*/
virtual void PushCommandToUndoList( PICKED_ITEMS_LIST* aItem );
/**
* Function PushCommandToRedoList
* add a command to redo in redo list
* 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.
*/
virtual PICKED_ITEMS_LIST* PopCommandFromUndoList();
/** PopCommandFromRedoList
* return the last command to undo and remove it from list
* nothing is deleted.
*/
virtual PICKED_ITEMS_LIST* PopCommandFromRedoList();
int GetUndoCommandCount()
{
return m_UndoList.m_CommandsList.size();
}
int GetRedoCommandCount()
{
return m_RedoList.m_CommandsList.size();
}
void SetModify() { m_FlagModified = true; }
void ClrModify() { m_FlagModified = false;; }
void SetSave() { m_FlagSave = true; }
void ClrSave() { m_FlagSave = false; }
int IsModify() { return m_FlagModified; }
int IsSave() { return m_FlagSave; }
//----<zoom stuff>---------------------------------------------------------
/**
* Function GetScalingFactor
* @return the the current scale used to draw items on screen
* draw coordinates are user coordinates * GetScalingFactor()
*/
double GetScalingFactor() const;
/**
* Function SetScalingFactor
* @param aScale = the the current scale used to draw items on screen
* draw coordinates are user coordinates * GetScalingFactor()
*/
void SetScalingFactor( double aScale );
/**
* Function GetZoom
* @return the current zoom factor
* Note: the zoom factor is NOT the scaling factor
* the scaling factor is m_ZoomScalar * GetZoom()
*/
double GetZoom() const;
/**
* Function SetZoom
* adjusts the current zoom factor
* @param coeff - Zoom coefficient.
*/
bool SetZoom( double coeff );
/**
* Function SetZoomList
* sets the list of zoom factors.
* @param aZoomList An array of zoom factors in ascending order, zero terminated
*/
void SetZoomList( const wxArrayDouble& aZoomList );
bool SetNextZoom();
bool SetPreviousZoom();
bool SetFirstZoom();
bool SetLastZoom();
//----<grid stuff>----------------------------------------------------------
/**
* Return the command ID of the currently selected grid.
*
* @return int - Currently selected grid command ID.
*/
int GetGridId();
/**
* Return the grid size of the currently selected grid.
*
* @return wxRealPoint - The currently selected grid size.
*/
wxRealPoint GetGridSize();
/**
* Return the grid object of the currently selected grid.
*
* @return GRID_TYPE - The currently selected grid.
*/
GRID_TYPE GetGrid();
const wxPoint& GetGridOrigin();
void SetGrid( const wxRealPoint& size );
/**
* Function SetGrid
* sets the grid size from command ID.
*/
void SetGrid( int id );
void SetGridList( GRIDS& sizelist );
void AddGrid( const GRID_TYPE& grid );
void AddGrid( const wxRealPoint& size, int id );
void AddGrid( const wxRealPoint& size, EDA_UNITS_T aUnit, int id );
/**
* Function GetGridCount().
* Return the size of the grid list.
*
* @returns - The size of the grid list.
*/
size_t GetGridCount() const { return m_grids.size(); }
/**
* Function GetGrid()
* Returns the grid object at \a aIndex.
*
* @param aIndex - The grid list index.
* @return - The grid object at \a aIndex or the current grid if the grid list is empty.
*/
GRID_TYPE& GetGrid( size_t aIndex );
/**
* Function GetGrids().
* Copy the grid list to \a aList.
*
* @param aList - List to copy to.
*/
void GetGrids( GRIDS& aList );
void SetMousePosition( const wxPoint& aPosition ) { m_MousePosition = aPosition; }
/**
* Function RefPos
* Return the reference position, coming from either the mouse position
* or the cursor position.
*
* @param useMouse If true, return mouse position, else cursor's.
*
* @return wxPoint - The reference point, either the mouse position or
* the cursor position.
*/
wxPoint RefPos( bool useMouse )
{
return useMouse ? m_MousePosition : m_crossHairPosition;
}
/**
* Function GetCursorPosition
* returns the current cursor position in logical (drawing) units.
* @param aOnGrid Returns the nearest grid position at the current cursor position.
* @param aGridSize Custom grid size instead of the current grid size. Only valid
* if \a aOnGrid is true.
* @return The current cursor position.
*/
wxPoint GetCursorPosition( bool aOnGrid, wxRealPoint* aGridSize = NULL );
/**
* Function GetCursorScreenPosition
* returns the cross hair position in device (display) units.b
* @return The current cross hair position.
*/
wxPoint GetCrossHairScreenPosition() const;
/**
* Function GetNearestGridPosition
* returns the nearest \a aGridSize location to \a aPosition.
* @param aPosition The position to check.
* @param aGridSize The grid size to locate to if provided. If NULL then the current
* grid size is used.
* @return The nearst grid position.
*/
wxPoint GetNearestGridPosition( const wxPoint& aPosition, wxRealPoint* aGridSize = NULL );
/**
* Function GetClass
* returns the class name.
* @return wxString
*/
virtual wxString GetClass() const
{
return wxT( "BASE_SCREEN" );
}
/**
* Helpers for accessing the draw item list.
*/
EDA_ITEMS::iterator Begin() { return m_items.begin(); }
EDA_ITEMS::iterator End() { return m_items.end(); }
virtual void AddItem( EDA_ITEM* aItem );
virtual void InsertItem( EDA_ITEMS::iterator aIter, EDA_ITEM* aItem );
/**
* Function IsBlockActive
* returns true if a block command is in progress.
*/
inline bool IsBlockActive() const { return !m_BlockLocate.IsIdle(); }
void ClearBlockCommand() { m_BlockLocate.Clear(); }
wxPoint GetScrollCenterPosition() const { return m_scrollCenter; }
void SetScrollCenterPosition( const wxPoint& aCenterPosition )
{
m_scrollCenter = aCenterPosition;
}
#if defined(DEBUG)
/**
* Function Show
* is used to output the object tree, currently for debugging only.
* @param nestLevel An aid to prettier tree indenting, and is the level
* of nesting of this object within the overall tree.
* @param os The ostream& to output to.
*/
void Show( int nestLevel, std::ostream& os );
#endif
};
#endif /* #ifndef __CLASS_BASE_SCREEN_H__ */
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