Merge pull request #1 from saurabhb17/develop

Added main functions

1 files changed, 600 insertions, 0 deletions

diff --git a/eeschema/sch_sheet.h b/eeschema/sch_sheet.h
new file mode 100644
index 0000000..3304a0d
--- /dev/null
+++ b/eeschema/sch_sheet.h
@@ -0,0 +1,600 @@
+/*
+ * This program source code file is part of KiCad, a free EDA CAD application.
+ *
+ * Copyright (C) 2015 Jean-Pierre Charras, jp.charras at wanadoo.fr
+ * Copyright (C) 1992-2015 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 sch_sheet.h
+ * @brief Definition of the SCH_SHEET class for Eeschema.
+ */
+
+#ifndef SCH_SHEEET_H
+#define SCH_SHEEET_H
+
+#include <boost/ptr_container/ptr_vector.hpp>
+#include <boost/foreach.hpp>
+#include <sch_text.h>
+
+
+class LINE_READER;
+class SCH_SCREEN;
+class SCH_SHEET;
+class SCH_SHEET_PIN;
+class SCH_SHEET_PATH;
+class DANGLING_END_ITEM;
+class SCH_EDIT_FRAME;
+class NETLIST_OBJECT_LIST;
+
+
+#define MIN_SHEET_WIDTH  500
+#define MIN_SHEET_HEIGHT 150
+
+
+/**
+ * Class SCH_SHEET_PIN
+ * defines a sheet pin (label) used in sheets to create hierarchical schematics.
+ *
+ * A SCH_SHEET_PIN is used to create a hierarchical sheet in the same way a
+ * pin is used in a component.  It connects the objects in the sheet object
+ * to the objects in the schematic page to the objects in the page that is
+ * represented by the sheet.  In a sheet object, a SCH_SHEET_PIN must be
+ * connected to a wire, bus, or label.  In the schematic page represented by
+ * the sheet, it corresponds to a hierarchical label.
+ */
+class SCH_SHEET_PIN : public SCH_HIERLABEL
+{
+private:
+    int m_number;       ///< Label number use for saving sheet label to file.
+                        ///< Sheet label numbering begins at 2.
+                        ///< 0 is reserved for the sheet name.
+                        ///< 1 is reserve for the sheet file name.
+
+    /**
+     * Defines the edge of the sheet that the sheet pin is positioned
+     * SHEET_LEFT_SIDE = 0: pin on left side
+     * SHEET_RIGHT_SIDE = 1: pin on right side
+     * SHEET_TOP_SIDE = 2: pin on top side
+     * SHEET_BOTTOM_SIDE =3: pin on bottom side
+     *
+     * For compatibility reasons, this does not follow same values as text orientation.
+     */
+    enum SHEET_SIDE
+    {
+        SHEET_LEFT_SIDE = 0,
+        SHEET_RIGHT_SIDE,
+        SHEET_TOP_SIDE,
+        SHEET_BOTTOM_SIDE,
+        SHEET_UNDEFINED_SIDE
+    };
+    SHEET_SIDE m_edge;
+
+public:
+    SCH_SHEET_PIN( SCH_SHEET* parent,
+                   const wxPoint& pos = wxPoint( 0, 0 ),
+                   const wxString& text = wxEmptyString );
+
+    // Do not create a copy constructor.  The one generated by the compiler is adequate.
+
+    ~SCH_SHEET_PIN() { }
+
+    wxString GetClass() const
+    {
+        return wxT( "SCH_SHEET_PIN" );
+    }
+
+    bool operator ==( const SCH_SHEET_PIN* aPin ) const;
+
+    /**
+     * Virtual function IsMovableFromAnchorPoint
+     * Return true for items which are moved with the anchor point at mouse cursor
+     * and false for items moved with no reference to anchor (usually large items)
+     * @return true for a hierarchical sheet pin
+     */
+    bool IsMovableFromAnchorPoint() { return true; }
+
+    void Draw( EDA_DRAW_PANEL* aPanel, wxDC* aDC, const wxPoint& aOffset,
+               GR_DRAWMODE aDrawMode, EDA_COLOR_T aColor = UNSPECIFIED_COLOR );
+
+    /**
+     * Function CreateGraphicShape (virtual)
+     * Calculates the graphic shape (a polygon) associated to the text
+     * @param aPoints = a buffer to fill with polygon corners coordinates
+     * @param aPos = Position of the shape
+     */
+    void CreateGraphicShape( std::vector <wxPoint>& aPoints, const wxPoint& aPos );
+
+    void SwapData( SCH_ITEM* aItem );
+
+    int GetPenSize() const;
+
+    /**
+     * Get the sheet label number.
+     *
+     * @return Number of the sheet label.
+     */
+    int GetNumber() const { return m_number; }
+
+    /**
+     * Set the sheet label number.
+     *
+     * @param aNumber - New sheet number label.
+     */
+    void SetNumber( int aNumber );
+
+    void SetEdge( SHEET_SIDE aEdge );
+
+    SHEET_SIDE GetEdge() const;
+
+    /**
+     * Function ConstrainOnEdge
+     * is used to adjust label position to edge based on proximity to vertical / horizontal edge
+     * of the parent sheet.
+     */
+    void ConstrainOnEdge( wxPoint Pos );
+
+    /**
+     * Get the parent sheet object of this sheet pin.
+     *
+     * @return The sheet that is the parent of this sheet pin or NULL if it does
+     *         not have a parent.
+     */
+    SCH_SHEET* GetParent() const { return (SCH_SHEET*) m_Parent; }
+
+    bool Save( FILE* aFile ) const;
+
+    bool Load( LINE_READER& aLine, wxString& aErrorMsg );
+
+#if defined(DEBUG)
+    void Show( int nestLevel, std::ostream& os ) const;     // override
+#endif
+
+    // Geometric transforms (used in block operations):
+
+    void Move( const wxPoint& aMoveVector )
+    {
+        m_Pos += aMoveVector;
+    }
+
+    void MirrorY( int aYaxis_position );
+
+    void Rotate( wxPoint aPosition );
+
+    void MirrorX( int aXaxis_position );
+
+    bool Matches( wxFindReplaceData& aSearchData, void* aAuxData, wxPoint* aFindLocation );
+
+    bool Replace( wxFindReplaceData& aSearchData, void* aAuxData = NULL )
+    {
+        return EDA_ITEM::Replace( aSearchData, m_Text );
+    }
+
+    bool IsReplaceable() const { return true; }
+
+    void GetEndPoints( std::vector< DANGLING_END_ITEM >& aItemList );
+
+    bool IsConnectable() const { return true; }
+
+    wxString GetSelectMenuText() const;
+
+    BITMAP_DEF GetMenuImage() const { return  add_hierar_pin_xpm; }
+
+    void SetPosition( const wxPoint& aPosition ) { ConstrainOnEdge( aPosition ); }
+
+    bool HitTest( const wxPoint& aPosition, int aAccuracy ) const;
+
+    EDA_ITEM* Clone() const;
+};
+
+
+typedef boost::ptr_vector<SCH_SHEET_PIN> SCH_SHEET_PINS;
+
+
+/**
+ * Class SCH_SHEET
+ * is the sheet symbol placed in a schematic, and is the entry point for a sub schematic.
+ */
+class SCH_SHEET : public SCH_ITEM
+{
+    friend class SCH_SHEET_PIN;
+
+    /// Screen that contains the physical data for the sheet.  In complex hierarchies
+    /// multiple sheets can share a common screen.
+    SCH_SCREEN* m_screen;
+
+    /// The list of sheet connection points.
+    SCH_SHEET_PINS m_pins;
+
+    /// The file name is also in the #SCH_SCREEN object associated with the sheet.  It is
+    /// also needed here for loading after reading the sheet description from file.
+    wxString m_fileName;
+
+    /// This is equivalent to the reference designator for components and is stored in F0
+    /// sheet pin in the schematic file.
+    wxString m_name;
+
+    /// The height of the text used to draw the sheet name.
+    int m_sheetNameSize;
+
+    /// The height of the text used to draw the file name.
+    int m_fileNameSize;
+
+    /// The position of the sheet.
+    wxPoint m_pos;
+
+    /// The size of the sheet.
+    wxSize m_size;
+
+public:
+    SCH_SHEET( const wxPoint& pos = wxPoint( 0, 0 ) );
+
+    /**
+     * Copy Constructor
+     * clones \a aSheet into a new object.  All sheet pins are copied as is except and
+     * the SCH_SHEET_PIN's #m_Parent pointers are set to the new copied parent object.
+     */
+    SCH_SHEET( const SCH_SHEET& aSheet );
+
+    ~SCH_SHEET();
+
+    wxString GetClass() const
+    {
+        return wxT( "SCH_SHEET" );
+    }
+
+    /**
+     * Virtual function IsMovableFromAnchorPoint
+     * Return true for items which are moved with the anchor point at mouse cursor
+     *  and false for items moved with no reference to anchor
+     * Usually return true for small items (labels, junctions) and false for
+     * items which can be large (hierarchical sheets, compoments)
+     * @return false for a hierarchical sheet
+     */
+    bool IsMovableFromAnchorPoint() { return false; }
+
+    wxString GetName() const { return m_name; }
+
+    void SetName( const wxString& aName ) { m_name = aName; }
+
+    int GetSheetNameSize() const { return m_sheetNameSize; }
+
+    void SetSheetNameSize( int aSize ) { m_sheetNameSize = aSize; }
+
+    int GetFileNameSize() const { return m_fileNameSize; }
+
+    void SetFileNameSize( int aSize ) { m_fileNameSize = aSize; }
+
+    SCH_SCREEN* GetScreen() { return m_screen; }
+
+    wxSize GetSize() { return m_size; }
+
+    void SetSize( const wxSize& aSize ) { m_size = aSize; }
+
+    /**
+     * Function SetScreen
+     * sets the screen associated with this sheet to \a aScreen.
+     * <p>
+     * The screen reference counting is performed by SetScreen.  If \a aScreen is not
+     * the same as the current screen, the current screen reference count is decremented
+     * and \a aScreen becomes the screen for the sheet.  If the current screen reference
+     * count reaches zero, the current screen is deleted.  NULL is a valid value for
+     * \a aScreen.
+     * </p>
+     * @param aScreen The new screen to associate with the sheet.
+     */
+    void SetScreen( SCH_SCREEN* aScreen );
+
+    /**
+     * Function GetScreenCount
+     * returns the number of times the associated screen for the sheet is being used.  If
+     * no screen is associated with the sheet, then zero is returned.
+     */
+    int GetScreenCount() const;
+
+    bool Save( FILE* aFile ) const;
+
+    bool Load( LINE_READER& aLine, wxString& aErrorMsg );
+
+    void GetMsgPanelInfo( std::vector< MSG_PANEL_ITEM >& aList );
+
+    /* there is no member for orientation in sch_sheet, to preserve file
+     * format, we detect orientation based on pin edges
+     */
+    bool IsVerticalOrientation() const;
+
+    /**
+     * Add aSheetPin to the sheet.
+     *
+     * Note: Once a sheet pin is added to the sheet, it is owned by the sheet.
+     *       Do not delete the sheet pin object or you will likely get a segfault
+     *       when the sheet is destroyed.
+     *
+     * @param aSheetPin The sheet pin item to add to the sheet.
+     */
+    void AddPin( SCH_SHEET_PIN* aSheetPin );
+
+    SCH_SHEET_PINS& GetPins() { return m_pins; }
+
+    SCH_SHEET_PINS& GetPins() const
+    {
+        return const_cast< SCH_SHEET_PINS& >( m_pins );
+    }
+
+    /**
+     * Remove \a aSheetPin from the sheet.
+     *
+     * @param aSheetPin The sheet pin item to remove from the sheet.
+     */
+    void RemovePin( SCH_SHEET_PIN* aSheetPin );
+
+    /**
+     * Delete sheet label which do not have a corresponding hierarchical label.
+     *
+     * Note: Make sure you save a copy of the sheet in the undo list before calling
+     *       CleanupSheet() otherwise any unreferenced sheet labels will be lost.
+     */
+    void CleanupSheet();
+
+    /**
+     * Return the sheet pin item found at \a aPosition in the sheet.
+     *
+     * @param aPosition The position to check for a sheet pin.
+     *
+     * @return The sheet pin found at \a aPosition or NULL if no sheet pin is found.
+     */
+    SCH_SHEET_PIN* GetPin( const wxPoint& aPosition );
+
+    /**
+     * Checks if the sheet already has a sheet pin named \a aName.
+     *
+     * @param aName Name of the sheet pin to search for.
+     *
+     * @return  True if sheet pin with \a aName is found, otherwise false.
+     */
+    bool HasPin( const wxString& aName );
+
+    bool HasPins() { return !m_pins.empty(); }
+
+    /**
+     * Check all sheet labels against schematic for undefined hierarchical labels.
+     *
+     * @return True if there are any undefined labels.
+     */
+    bool HasUndefinedPins();
+
+    /**
+     * Function GetMinWidth
+     * returns the minimum width of the sheet based on the widths of the sheet pin text.
+     *
+     * <p>
+     * The minimum sheet width is determined by the width of the bounding box of each
+     * hierarchical sheet pin.  If two pins are horizontally adjacent ( same Y position )
+     * to each other, the sum of the bounding box widths is used.  If at some point in
+     * the future sheet objects can be rotated or pins can be placed in the vertical
+     * orientation, this function will need to be changed.
+     * </p>
+     *
+     * @return The minimum width the sheet can be resized.
+     */
+    int GetMinWidth() const;
+
+    /**
+     * Function GetMinHeight
+     * returns the minimum height that the sheet can be resized based on the sheet pin
+     * positions.
+     *
+     * <p>
+     * The minimum width of a sheet is determined by the Y axis location of the bottom
+     * most sheet pin.  If at some point in the future sheet objects can be rotated or
+     * pins can be placed in the vertical orientation, this function will need to be
+     * changed.
+     * </p>
+     *
+     * @return The minimum height the sheet can be resized.
+     */
+    int GetMinHeight() const;
+
+    int GetPenSize() const;
+
+    void Draw( EDA_DRAW_PANEL* aPanel, wxDC* aDC, const wxPoint& aOffset,
+               GR_DRAWMODE aDrawMode, EDA_COLOR_T aColor = UNSPECIFIED_COLOR );
+
+    EDA_RECT const GetBoundingBox() const;
+
+    /**
+     * Function GetResizePos
+     * returns the position of the lower right corner of the sheet in drawing units.
+     *
+     * @return A wxPoint containing lower right corner of the sheet in drawing units.
+     */
+    wxPoint GetResizePosition() const;
+
+    void SwapData( SCH_ITEM* aItem );
+
+    /**
+     * Function ComponentCount
+     *  count our own components, without the power components.
+     *  @return the component count.
+     */
+    int ComponentCount();
+
+    /**
+     * Function Load.
+     *  for the sheet: load the file m_fileName
+     *  if a screen already exists, the file is already read.
+     *  m_screen point on the screen, and its m_RefCount is
+     * incremented
+     *  else creates a new associated screen and load the data file.
+     *  @param aFrame = a SCH_EDIT_FRAME pointer to the maim schematic frame
+     *  @return true if OK
+     */
+    bool Load( SCH_EDIT_FRAME* aFrame );
+
+    /**
+     * Function SearchHierarchy
+     *  search the existing hierarchy for an instance of screen "FileName".
+     *  @param aFilename = the filename to find
+     *  @param aScreen = a location to return a pointer to the screen (if found)
+     *  @return bool if found, and a pointer to the screen
+     */
+    bool SearchHierarchy( const wxString& aFilename, SCH_SCREEN** aScreen );
+
+    /**
+     * Function LocatePathOfScreen
+     * search the existing hierarchy for an instance of screen "FileName".
+     * don't bother looking at the root sheet - it must be unique,
+     * no other references to its m_screen otherwise there would be
+     * loops in the hierarchy.
+     *
+     * @param aScreen = the SCH_SCREEN* screen that we search for
+     * @param aList = the SCH_SHEET_PATH*  that must be used
+     * @return true if found
+     */
+    bool LocatePathOfScreen( SCH_SCREEN* aScreen, SCH_SHEET_PATH* aList );
+
+    /**
+     * Function CountSheets
+     * calculates the number of sheets found in "this"
+     * this number includes the full subsheets count
+     * @return the full count of sheets+subsheets contained by "this"
+     */
+    int CountSheets();
+
+    /**
+     * Function GetFileName
+     * return the filename corresponding to this sheet
+     * @return a wxString containing the filename
+     */
+    wxString GetFileName( void ) const;
+
+    // Set a new filename without changing anything else
+    void SetFileName( const wxString& aFilename )
+    {
+        m_fileName = aFilename;
+        // Filenames are stored using unix notation
+        m_fileName.Replace( wxT("\\"), wxT("/") );
+    }
+
+    bool ChangeFileName( SCH_EDIT_FRAME* aFrame, const wxString& aFileName );
+
+    //void      RemoveSheet(SCH_SHEET* sheet);
+    //to remove a sheet, just delete it
+    //-- the destructor should take care of everything else.
+
+    // Geometric transforms (used in block operations):
+
+    void Move( const wxPoint& aMoveVector )
+    {
+        m_pos += aMoveVector;
+
+        BOOST_FOREACH( SCH_SHEET_PIN& pin, m_pins )
+        {
+            pin.Move( aMoveVector );
+        }
+    }
+
+    void MirrorY( int aYaxis_position );
+
+    void MirrorX( int aXaxis_position );
+
+    void Rotate( wxPoint aPosition );
+
+    bool Matches( wxFindReplaceData& aSearchData, void* aAuxData, wxPoint* aFindLocation );
+
+    bool Replace( wxFindReplaceData& aSearchData, void* aAuxData = NULL );
+
+    bool IsReplaceable() const { return true; }
+
+    /**
+     * Resize this sheet to aSize and adjust all of the labels accordingly.
+     *
+     * @param aSize - The new size for this sheet.
+     */
+    void Resize( const wxSize& aSize );
+
+    /**
+     * Function GetSheetNamePosition
+     * @return the position of the anchor of sheet name text
+     */
+    wxPoint GetSheetNamePosition();
+
+    /**
+     * Function GetFileNamePosition
+     * @return the position of the anchor of filename text
+     */
+    wxPoint GetFileNamePosition();
+
+    void GetEndPoints( std::vector <DANGLING_END_ITEM>& aItemList );
+
+    bool IsDanglingStateChanged( std::vector< DANGLING_END_ITEM >& aItemList );
+
+    bool IsDangling() const;
+
+    bool IsSelectStateChanged( const wxRect& aRect );
+
+    bool IsConnectable() const { return true; }
+
+    void GetConnectionPoints( std::vector< wxPoint >& aPoints ) const;
+
+    SEARCH_RESULT Visit( INSPECTOR* inspector, const void* testData,
+                                 const KICAD_T scanTypes[] );
+
+    wxString GetSelectMenuText() const;
+
+    BITMAP_DEF GetMenuImage() const { return add_hierarchical_subsheet_xpm; }
+
+    void GetNetListItem( NETLIST_OBJECT_LIST& aNetListItems,
+                         SCH_SHEET_PATH*      aSheetPath );
+
+    SCH_ITEM& operator=( const SCH_ITEM& aSheet );
+
+    wxPoint GetPosition() const { return m_pos; }
+
+    void SetPosition( const wxPoint& aPosition );
+
+    bool HitTest( const wxPoint& aPosition, int aAccuracy ) const;
+
+    bool HitTest( const EDA_RECT& aRect, bool aContained = false, int aAccuracy = 0 ) const;
+
+    void Plot( PLOTTER* aPlotter );
+
+    EDA_ITEM* Clone() const;
+
+#if defined(DEBUG)
+    void Show( int nestLevel, std::ostream& os ) const;     // override
+#endif
+
+protected:
+
+    /**
+     * Renumber the sheet pins in the sheet.
+     *
+     * This method is used internally by SCH_SHEET to update the pin numbering
+     * when the pin list changes.  Make sure you call this method any time a
+     * sheet pin is added or removed.
+     */
+    void renumberPins();
+};
+
+
+typedef std::vector< SCH_SHEET* > SCH_SHEETS;
+
+#endif /* SCH_SHEEET_H */