pcbnew: better code to read/modify/delete footprints in module libraries.

Documentation/wxWidgets_patch_notes.txt

@@ -45,11 +45,6 @@ parameter is a double)
 Workaround:
 Use a version > 2.9.1
 
-Currently ( 2011, april 12 ) the 2.9.2 is not yet finalized
-(and can be found only on the wxWidgets snv server)
-can be fixed by replacing the file <wxWidgets-2.9.1>/src/common/xlocale.cpp
-by the corresponding file from the 2.9.2 version (from wxWidgets svn server)
-
 
 *************************************************************************************
 wxGTK version: All

common/confirm.cpp

-/************************/
-/* Menu "CONFIRMATION"  */
-/* Function get_Message */
-/* Test requires ESC    */
-/************************/
+/*
+* confirm.cpp
+* utilities to display some error, warning and info short messges
+*/
 
 #include "fctsys.h"
 #include "common.h"
 
-enum id_dialog {
-    ID_TIMOUT = 1500
-};
-
-
-/* Class for displaying messages, similar to wxMessageDialog,
- * but can be erased after a time out expires.
- *
- * @note - Do not use the time feature.  It is broken by design because
- *         the dialog is shown as modal and wxWidgets will assert when
- *         compiled in the debug mode.  This is because the dialog steals
- *         the event queue when dialog is modal so the timer event never
- *         gets to the dialog event handle.  Using dialogs to display
- *         transient is brain dead anyway.  Use the message panel or some
- *         other method.
- */
-class WinEDA_MessageDialog : public wxMessageDialog
-{
-private:
-    int     m_LifeTime;
-    wxTimer m_Timer;
-
-public:
-    WinEDA_MessageDialog( wxWindow * parent, const wxString &msg,
-                          const wxString &title, int style, int lifetime );
-    ~WinEDA_MessageDialog() { };
-
-    void OnTimeOut( wxTimerEvent& event );
-
-    DECLARE_EVENT_TABLE()
-};
-
-BEGIN_EVENT_TABLE( WinEDA_MessageDialog, wxMessageDialog )
-    EVT_TIMER( ID_TIMOUT, WinEDA_MessageDialog::OnTimeOut )
-END_EVENT_TABLE()
-
-
-WinEDA_MessageDialog::WinEDA_MessageDialog( wxWindow*       parent,
-                                            const wxString& msg,
-                                            const wxString& title,
-                                            int             style,
-                                            int             lifetime ) :
-    wxMessageDialog( parent, msg, title, style )
-{
-    m_LifeTime = lifetime;
-    m_Timer.SetOwner( this, ID_TIMOUT );
-    if( m_LifeTime > 0 )
-        m_Timer.Start( 100 * m_LifeTime, wxTIMER_ONE_SHOT );
-}
-
-
-void WinEDA_MessageDialog::OnTimeOut( wxTimerEvent& event )
-{
-    m_Timer.Stop();
-    EndModal( wxID_YES );   /* Does not work, I do not know why (this
-                             * function is correctly called after time out).
-                             * See not above as to why this doesn't work. */
-}
-
 
 /* Display an error or warning message.
- * If display time > 0 the dialog disappears after displayTime 0.1 seconds
+ * TODO:
+ *  If display time > 0 the dialog disappears after displayTime ( in 0.1 second )
  *
  */
 void DisplayError( wxWindow* parent, const wxString& text, int displaytime )
@@ -76,12 +17,11 @@ void DisplayError( wxWindow* parent, const wxString& text, int displaytime )
     wxMessageDialog* dialog;
 
     if( displaytime > 0 )
-        dialog = new WinEDA_MessageDialog( parent, text, _( "Warning" ),
-                                           wxOK | wxICON_INFORMATION,
-                                           displaytime );
+        dialog = new wxMessageDialog( parent, text, _( "Warning" ),
+                                           wxOK | wxCENTRE | wxICON_INFORMATION );
     else
-        dialog = new WinEDA_MessageDialog( parent, text, _( "Error" ),
-                                           wxOK | wxICON_ERROR, 0 );
+        dialog = new wxMessageDialog( parent, text, _( "Error" ),
+                                           wxOK | wxCENTRE | wxICON_ERROR );
 
     dialog->ShowModal();
     dialog->Destroy();
@@ -89,14 +29,16 @@ void DisplayError( wxWindow* parent, const wxString& text, int displaytime )
 
 
 /* Display an informational message.
+ * TODO:
+ *  If display time > 0 the message disappears after displayTime (in 0.1 second )
  */
 void DisplayInfoMessage( wxWindow* parent, const wxString& text,
                          int displaytime )
 {
     wxMessageDialog* dialog;
 
-    dialog = new WinEDA_MessageDialog( parent, text, _( "Info:" ),
-                                       wxOK | wxICON_INFORMATION, displaytime );
+    dialog = new wxMessageDialog( parent, text, _( "Info:" ),
+                                       wxOK | wxCENTRE | wxICON_INFORMATION );
 
     dialog->ShowModal();
     dialog->Destroy();

pcbnew/CMakeLists.txt

@@ -93,6 +93,7 @@ set(PCBNEW_SRCS
     block.cpp
     block_module_editor.cpp
     build_BOM_from_board.cpp
+    class_footprint_library.cpp
     class_pcb_layer_widget.cpp
     clean.cpp
     connect.cpp

pcbnew/class_footprint_library.cpp

+/**
+ * @file class_footprint_library.cpp
+ * Helper class to read/write footprint libraries.
+ */
+
+#include "fctsys.h"
+#include "kicad_string.h"
+#include "pcbnew.h"
+#include "wxPcbStruct.h"
+#include "richio.h"
+#include "filter_reader.h"
+
+#include "class_footprint_library.h"
+
+/*
+ * Module library header format:
+ * LIBRARY HEADER-datetime
+ * $INDEX
+ * List of modules names (1 name per line)
+ * $EndIndex
+ * List of descriptions of Modules
+ * $EndLIBRARY
+ */
+
+FOOTPRINT_LIBRARY::FOOTPRINT_LIBRARY( FILE * aFile, FILTER_READER * aReader )
+{
+    wxASSERT( m_reader || m_file );
+
+    m_file = aFile;
+    m_reader = aReader;
+    m_LineNum = 0;
+}
+
+/* function IsLibrary
+ * Read the library file Header
+ * return > 0 if this file is a footprint lib
+ * (currentlu return 1 but could be a value > 1 for future file formats
+ */
+int FOOTPRINT_LIBRARY::IsLibrary( )
+{
+    char *line;
+    char buffer[1024];
+    if( m_reader )
+    {
+        m_reader->ReadLine();
+        line = m_reader->Line();
+    }
+    else
+    {
+        line = buffer;
+        GetLine( m_file, line, &m_LineNum );
+    }
+
+    StrPurge( line );
+    if( strnicmp( line, ENTETE_LIBRAIRIE, L_ENTETE_LIB ) == 0 )
+        return 1;
+
+    return 0;
+}
+
+
+/*
+ * function RebuildIndex
+ * Read the full library file and build the list od footprints found
+ * and do not use the $INDEX ... $EndINDEX section
+ */
+bool FOOTPRINT_LIBRARY::RebuildIndex()
+{
+    m_List.Clear();
+
+    char  name[1024];
+
+    if( m_reader )
+    {
+        while( m_reader->ReadLine() )
+        {
+            char * line = m_reader->Line();
+            StrPurge( line );
+            if( strnicmp( line, "$MODULE", 7 ) == 0 )
+            {
+                sscanf( line + 7, " %s", name );
+                m_List.Add( FROM_UTF8( name ) );
+            }
+        }
+    }
+    else
+    {
+        char line[1024];
+        while( GetLine( m_file, line, &m_LineNum ) )
+        {
+            if( strnicmp( line, "$MODULE", 7 ) == 0 )
+            {
+                sscanf( line + 7, " %s", name );
+                m_List.Add( FROM_UTF8( name ) );
+            }
+        }
+    }
+
+    return true;
+}
+
+/* function ReadSectionIndex
+ * Read the $INDEX ... $EndINDEX section
+ * list of footprints is stored in m_List
+ */
+bool FOOTPRINT_LIBRARY::ReadSectionIndex()
+{
+    // Some broken INDEX sections have more than one section
+    // So we must read the next line after $EndINDEX tag,
+    // to see if this is not a new $INDEX tag.
+    bool exit = false;
+    if( m_reader )
+    {
+        while( m_reader->ReadLine() )
+        {
+            char * line = m_reader->Line();
+            StrPurge( line );
+            if( strnicmp( line, "$INDEX", 6 ) == 0 )
+            {
+                exit = false;
+                while( m_reader->ReadLine() )
+                {
+                    StrPurge( line );
+                    m_List.Add( FROM_UTF8( line ) );
+                    if( strnicmp( line, "$EndINDEX", 9 ) == 0 )
+                    {
+                        exit = true;
+                        break;
+                    }
+                }
+            }
+            else if( exit )
+                break;
+        }
+    }
+    else
+    {
+        char line[1024];
+        while( GetLine( m_file, line, &m_LineNum ) )
+        {
+            if( strnicmp( line, "$INDEX", 6 ) == 0 )
+            {
+                exit = false;
+                while( GetLine( m_file, line, &m_LineNum ) )
+                {
+                    StrPurge( line );
+                    m_List.Add( FROM_UTF8( line ) );
+                    if( strnicmp( line, "$EndINDEX", 9 ) == 0 )
+                    {
+                        exit = true;
+                        break;
+                    }
+                }
+            }
+            else if( exit )
+                break;
+        }
+    }
+
+    return true;
+}
+
+/* Function WriteHeader
+ * Write the library header
+ */
+bool FOOTPRINT_LIBRARY::WriteHeader()
+{
+    char line[256];
+    fprintf( m_file, "%s  %s\n", ENTETE_LIBRAIRIE, DateAndTime( line ) );
+    fprintf( m_file, "# encoding utf-8\n");
+    return true;
+}
+
+/* Function WriteSectionIndex
+ * Write the $INDEX ... $EndINDEX section.
+ * This section is filled by names in m_List
+ */
+bool FOOTPRINT_LIBRARY::WriteSectionIndex()
+{
+    fputs( "$INDEX\n", m_file );
+    for( unsigned ii = 0; ii < m_List.GetCount(); ii++ )
+    {
+        fprintf( m_file, "%s\n", TO_UTF8( m_List[ii] ) );
+    }
+    fputs( "$EndINDEX\n", m_file );
+    return true;
+}
+
+/* Function WriteEndOfFile
+ * Write the last line section.
+ */
+bool FOOTPRINT_LIBRARY::WriteEndOfFile()
+{
+    fputs( "$EndLIBRARY\n", m_file );
+    return true;
+}
+
+/*
+ * Function FindInList
+ * Search for aName int m_List and return true if found
+ */
+bool FOOTPRINT_LIBRARY::FindInList( const wxString & aName )
+{
+    for( unsigned ii = 0; ii < m_List.GetCount(); ii++ )
+    {
+        if( m_List[ii].CmpNoCase( aName ) == 0 )
+            return true;
+    }
+
+    return false;
+}
+
+/**
+ * Function RemoveFromList
+ * Search for aName int m_List and remove it
+ * @return true if found and removed
+ */
+bool FOOTPRINT_LIBRARY::RemoveFromList( const wxString & aName )
+{
+    for( unsigned ii = 0; ii < m_List.GetCount(); ii++ )
+    {
+        if( m_List[ii].CmpNoCase( aName ) == 0 )
+        {
+            m_List.RemoveAt(ii);
+            return true;
+        }
+    }
+
+    return false;
+}
+
+/**
+ * Function SortList
+ * Sort m_List in alphabetic order
+ */
+void FOOTPRINT_LIBRARY::SortList()
+{
+    m_List.Sort();
+}

pcbnew/class_footprint_library.h

+/* Helper class to read/write footprints libraries
+*/
+
+#ifndef _FOOTPRINT_LIBRARY_H_
+#define _FOOTPRINT_LIBRARY_H_
+
+#include "filter_reader.h"
+
+class FOOTPRINT_LIBRARY
+{
+public:
+    wxArrayString m_List;       // list of footprints, used to read/write INDEX section
+    wxString m_LibraryName;     // the full library name
+    int m_LineNum;              // the line count
+
+private:
+    FILTER_READER * m_reader;   // FILTER_READER to read file. id NULL, use m_file
+    FILE * m_file;              // footprint file to read/write.
+
+public:
+    /**
+     * ctor
+     * @param aFile = a FILE * pointer used for write operations,
+     * and read operations when aReader = NULL
+     * @param aReader = a FILTER_READER pointer used for read operations
+     * If NULL, a direct aFILE read is used
+     */
+    FOOTPRINT_LIBRARY( FILE * aFile, FILTER_READER * aReader = NULL );
+
+    ~FOOTPRINT_LIBRARY() { }
+
+    /**
+     * function IsLibrary
+     * Read the library file Header
+     * return > 0 if this file is a footprint lib
+     * (currentlu return 1 but could be a value > 1 for future file formats
+     */
+    int IsLibrary( );
+
+    /**
+     * function RebuildIndex
+     * Read the full library file and build the list od footprints found
+     * Do not use the $INDEX ... $EndINDEX section
+     */
+    bool RebuildIndex();
+
+    /**
+     * function ReadSectionIndex
+     * Read the $INDEX ... $EndINDEX section
+     * list of footprints is stored in m_List
+     */
+    bool ReadSectionIndex();
+
+    /**
+     * Function WriteHeader
+     * Write the library header
+     */
+    bool WriteHeader();
+
+    /**
+     * Function WriteSectionIndex
+     * Write the $INDEX ... $EndINDEX section.
+     * This section is filled by names in m_List
+     */
+    bool WriteSectionIndex();
+
+    /**
+     * Function WriteEndOfFile
+     * Write the last line section.
+     */
+    bool WriteEndOfFile();
+
+    /**
+     * Function FindInList
+     * Search for aName int m_List
+     * @return true if found
+     */
+    bool FindInList( const wxString & aName );
+
+    /**
+     * Function RemoveFromList
+     * Search for aName int m_List and remove it
+     * @return true if found and removed
+     */
+    bool RemoveFromList( const wxString & aName );
+
+    /**
+     * Function SortList
+     * Sort m_List in alphabetic order
+     */
+    void SortList();
+};
+
+#endif

pcbnew/loadcmp.cpp

@@ -17,6 +17,7 @@
 #include "dialog_helpers.h"
 #include "filter_reader.h"
 #include "footprint_info.h"
+#include "class_footprint_library.h"
 
 
 static void DisplayCmpDoc( wxString& Name );
@@ -194,9 +195,7 @@ MODULE* PCB_BASE_FRAME::Get_Librairie_Module( const wxString& aLibraryFullFilena
                                               const wxString& aModuleName,
                                               bool            aDisplayMessageError )
 {
-    int        found = 0;
     wxFileName fn;
-    char*      Line;
     wxString   Name;
     wxString   msg, tmp;
     MODULE*    NewModule;
@@ -244,11 +243,9 @@ MODULE* PCB_BASE_FRAME::Get_Librairie_Module( const wxString& aLibraryFullFilena
         msg.Printf( _( "Scan Lib: %s" ), GetChars( tmp ) );
         SetStatusText( msg );
 
-        /* Reading header ENTETE_LIBRAIRIE */
-        reader.ReadLine();
-        Line = reader.Line();
-        StrPurge( Line );
-        if( strnicmp( Line, ENTETE_LIBRAIRIE, L_ENTETE_LIB ) != 0 )
+        FOOTPRINT_LIBRARY curr_lib( file, &reader );
+
+        if( !curr_lib.IsLibrary() )
         {
             msg.Printf( _( "<%s> is not a valid Kicad PCB footprint library file." ),
                         GetChars( tmp ) );
@@ -258,47 +255,23 @@ MODULE* PCB_BASE_FRAME::Get_Librairie_Module( const wxString& aLibraryFullFilena
         }
 
         /* Reading the list of modules in the library. */
-        found = 0;
-        while( !found && reader.ReadLine() )
-        {
-            Line = reader.Line();
-            if( strnicmp( Line, "$MODULE", 6 ) == 0 )
-                break;
-            if( strnicmp( Line, "$INDEX", 6 ) == 0 )
-            {
-                while( reader.ReadLine() )
-                {
-                    Line = reader.Line();
-                    if( strnicmp( Line, "$EndINDEX", 9 ) == 0 )
-                        break;
-                    StrPurge( Line );
-                    msg = FROM_UTF8( Line );
-                    if( msg.CmpNoCase( aModuleName ) == 0 )
-                    {
-                        found = 1;
-                        break; /* found! */
-                    }
-                }
-            }
-        }
+        curr_lib.ReadSectionIndex();
+        bool found = curr_lib.FindInList( aModuleName );
 
         /* Read library. */
-        while( found && reader.ReadLine() )
+        if( found  )
         {
-            Line = reader.Line();
-            if( Line[0] != '$' )
-                continue;
-
-            if( Line[1] != 'M' )
-                continue;
+            fileReader.Rewind();
+            while( reader.ReadLine() )
+            {
+                char * line = reader.Line();
+                StrPurge( line + 8 );
 
-            if( strnicmp( Line, "$MODULE", 7 ) != 0 )
+                if( strnicmp( line, "$MODULE", 7 ) != 0 )
                     continue;
 
-            StrPurge( Line + 8 );
-
                 // Read module name.
-            Name = FROM_UTF8( Line + 8 );
+                Name = FROM_UTF8( line + 8 );
 
                 if( Name.CmpNoCase( aModuleName ) == 0 )
                 {
@@ -314,6 +287,7 @@ MODULE* PCB_BASE_FRAME::Get_Librairie_Module( const wxString& aLibraryFullFilena
                     return NewModule;
                 }
             }
+        }
 
         if( one_lib )
             break;
@@ -384,6 +358,8 @@ wxString PCB_BASE_FRAME::Select_1_Module_From_List( EDA_DRAW_FRAME* aWindow,
         for( unsigned ii = 0; ii < MList.GetCount(); ii++ )
             footprint_names_list.Add( MList.GetItem(ii).m_Module );
 
+    if( footprint_names_list.GetCount() )
+    {
         msg.Printf( _( "Modules [%d items]" ), footprint_names_list.GetCount() );
         WinEDAListBox dlg( aWindow, msg, footprint_names_list, OldName,
                            DisplayCmpDoc, GetComponentDialogPosition() );
@@ -392,6 +368,12 @@ wxString PCB_BASE_FRAME::Select_1_Module_From_List( EDA_DRAW_FRAME* aWindow,
             CmpName = dlg.GetTextSelection();
         else
             CmpName.Empty();
+    }
+    else
+    {
+        DisplayError( aWindow, _("No footprint found") );
+        CmpName.Empty();
+    }
 
     if( CmpName != wxEmptyString )
         OldName = CmpName;