Fixes and more functionality.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@1929 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

user/wxLayout/TODO

@@ -5,9 +5,14 @@ BUGS
 - dmalloc shows duplicate deletion after merging two lines and
   deleting the second half
 
+- printout page calculation still a bit wrong
+- word wrap for objects with lots of non-space needs to search in positive
+direction if begin of first object is reached
+
 TODO
 =====================================================================
-
+- replacement of llist in window
+- undo
 - Selections
 - More optimisations
 

user/wxLayout/wxLayout.cpp

@@ -33,7 +33,7 @@ IMPLEMENT_APP(MyApp)
    enum ids{ ID_ADD_SAMPLE = 1, ID_CLEAR, ID_PRINT,
              ID_PRINT_SETUP, ID_PAGE_SETUP, ID_PREVIEW, ID_PRINT_PS,
              ID_PRINT_SETUP_PS, ID_PAGE_SETUP_PS,ID_PREVIEW_PS,
-             ID_WRAP, ID_NOWRAP,
+             ID_WRAP, ID_NOWRAP, ID_PASTE,
              ID_WXLAYOUT_DEBUG, ID_QUIT, ID_CLICK, ID_HTML, ID_TEXT, ID_TEST };
 
 
@@ -63,10 +63,9 @@ MyFrame::MyFrame(void) :
   
    SetStatusText( "wxLayout by Karsten Ball<6C>der." );
 
+   wxMenuBar *menu_bar = new wxMenuBar();
+   
    wxMenu *file_menu = new wxMenu;
-   file_menu->Append( ID_CLEAR, "Clear");
-   file_menu->Append( ID_ADD_SAMPLE, "Example");
-
    file_menu->Append(ID_PRINT, "&Print...", "Print");
    file_menu->Append(ID_PRINT_SETUP, "Print &Setup...","Setup printer properties");
    file_menu->Append(ID_PAGE_SETUP, "Page Set&up...", "Page setup");
@@ -78,18 +77,22 @@ MyFrame::MyFrame(void) :
    file_menu->Append(ID_PAGE_SETUP_PS, "Page Setup PostScript...", "Page setup (PostScript)");
    file_menu->Append(ID_PREVIEW_PS, "Print Preview PostScript", "Preview (PostScript)");
 #endif
-   file_menu->AppendSeparator();
-   file_menu->Append(ID_WRAP, "Wrap mode", "Activate wrapping at pixel 200.");
-   file_menu->Append(ID_NOWRAP, "No-wrap mode", "Deactivate wrapping.");
-
    file_menu->AppendSeparator();
    file_menu->Append( ID_TEXT, "Export Text");
    file_menu->Append( ID_HTML, "Export HTML");
    file_menu->Append( ID_QUIT, "Exit");
-  
-   wxMenuBar *menu_bar = new wxMenuBar();
    menu_bar->Append(file_menu, "File" );
 
+   wxMenu *edit_menu = new wxMenu;
+   edit_menu->Append( ID_CLEAR, "Clear");
+   edit_menu->Append( ID_ADD_SAMPLE, "Example");
+   edit_menu->AppendSeparator();
+   edit_menu->Append(ID_WRAP, "Wrap mode", "Activate wrapping at pixel 200.");
+   edit_menu->Append(ID_NOWRAP, "No-wrap mode", "Deactivate wrapping.");
+   edit_menu->AppendSeparator();
+   edit_menu->Append(ID_PASTE, "Paste", "Paste text from clipboard.");
+   menu_bar->Append(edit_menu, "Edit" );
+
 #ifndef __WXMSW__
    menu_bar->Show( TRUE );
 #endif // MSW
@@ -222,6 +225,9 @@ void MyFrame::OnCommand( wxCommandEvent &event )
    case ID_CLICK:
       cerr << "Received click event." << endl;
       break;
+   case ID_PASTE:
+      m_lwin->Paste();
+      break;
    case ID_HTML:
    {
       wxLayoutExportObject *export;

user/wxLayout/wxllist.cpp

@@ -72,6 +72,7 @@ bool operator !=(wxPoint const &p1, wxPoint const &p2)
    return p1.x != p2.x || p1.y != p2.y;
 }
 
+
 /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * 
 
    wxLayoutObjectText
@@ -87,6 +88,17 @@ wxLayoutObjectText::wxLayoutObjectText(const wxString &txt)
    m_Bottom = 0;
 }
 
+wxLayoutObject *
+wxLayoutObjectText::Copy(void)
+{
+   wxLayoutObjectText *obj = new wxLayoutObjectText(m_Text);
+   obj->m_Width = m_Width;
+   obj->m_Height = m_Height;
+   obj->m_Top = m_Top;
+   obj->m_Bottom = m_Bottom;
+   obj->SetUserData(m_UserData);
+   return obj;
+}
 
 wxPoint
 wxLayoutObjectText::GetSize(CoordType *top, CoordType *bottom) const
@@ -157,6 +169,15 @@ wxLayoutObjectIcon::wxLayoutObjectIcon(wxBitmap const &icon)
    m_Icon = new wxBitmap(icon);
 }
 
+wxLayoutObject *
+wxLayoutObjectIcon::Copy(void)
+{
+   wxLayoutObjectIcon *obj = new wxLayoutObjectIcon(new
+                                                    wxBitmap(*m_Icon));
+   obj->SetUserData(m_UserData);
+   return obj;
+}
+
 wxLayoutObjectIcon::wxLayoutObjectIcon(wxBitmap *icon)
 {
    m_Icon = icon;
@@ -199,6 +220,20 @@ wxLayoutObjectCmd::wxLayoutObjectCmd(int size, int family, int style, int
    m_ColourBG = bg;
 }
 
+wxLayoutObject *
+wxLayoutObjectCmd::Copy(void)
+{
+   wxLayoutStyleInfo si;
+   GetStyle(&si);
+   
+   wxLayoutObjectCmd *obj = new wxLayoutObjectCmd(
+      si.size, si.family, si.style, si.weight, si.underline,
+      m_ColourFG, m_ColourBG);
+   obj->SetUserData(m_UserData);
+   return obj;
+}
+
+
 wxLayoutObjectCmd::~wxLayoutObjectCmd()
 {
    delete m_font;
@@ -787,15 +822,38 @@ wxLayoutLine::GetWrapPosition(CoordType column)
                column--;
             }
          }while(offset != -1);
+         i--;  // move on to previous object
       }
       else
+      {
          column -= (**i).GetLength();
-      // This is both "else" and what has to be done after checking
+         i--;
-      // all positions of the text object:
+      }
-      i--;
+      if( i != NULLIT)
-      offset = (**i).GetLength();
+         offset = (**i).GetLength();
    }while(i != NULLIT);
-   return -1;
+   /* If we reached the begin of the list and have more than one
+      object, that one is longer than the margin, so break behind
+      it. */
+   CoordType pos = 0;
+   i = m_ObjectList.begin();
+   while(i != NULLIT && (**i).GetType() != WXLO_TYPE_TEXT)
+   {
+      pos += (**i).GetLength();
+      i++;
+   }
+   if(i == NULLIT) return -1;  //why should this happen?
+   pos += (**i).GetLength();
+   i++;
+   while(i != NULLIT && (**i).GetType() != WXLO_TYPE_TEXT)
+   {
+            pos += (**i).GetLength();
+            i++;
+   }
+   if(i == NULLIT) return -1;  //this is possible, if there is only one text object
+   // now we are at the second text object:
+   pos -= (**i).GetLength();
+   return pos; // in front of it
 }
    
 
@@ -809,7 +867,7 @@ wxLayoutList::wxLayoutList()
 {
    m_DefaultSetting = NULL;
    m_FirstLine = NULL;
-   InternalClear();
+   Clear();
 }
 
 wxLayoutList::~wxLayoutList()
@@ -818,17 +876,11 @@ wxLayoutList::~wxLayoutList()
 }
 
 void
-wxLayoutList::InternalClear(void)
+wxLayoutList::Empty(void)
 {
    while(m_FirstLine)
       m_FirstLine = m_FirstLine->DeleteLine(false);
 
-   if(m_DefaultSetting)
-   {
-      delete m_DefaultSetting;
-      m_DefaultSetting = NULL;
-   }
-
    m_CursorPos = wxPoint(0,0);
    m_CursorScreenPos = wxPoint(0,0);
    m_CursorSize = wxPoint(0,0);
@@ -836,6 +888,18 @@ wxLayoutList::InternalClear(void)
    m_CursorLine = m_FirstLine;
 }
 
+
+void
+wxLayoutList::InternalClear(void)
+{
+   Empty();
+   if(m_DefaultSetting)
+   {
+      delete m_DefaultSetting;
+      m_DefaultSetting = NULL;
+   }
+}
+
 void
 wxLayoutList::SetFont(int family, int size, int style, int weight,
                       int underline, wxColour const *fg,
@@ -906,7 +970,7 @@ wxLayoutList::MoveCursorTo(wxPoint const &p)
 {
    wxLayoutLine *line = m_FirstLine;
    while(line && line->GetLineNumber() != p.y)
-      ;
+      line = line->GetNextLine();
    if(line && line->GetLineNumber() == p.y) // found it
    {
       m_CursorPos.y = p.y;

user/wxLayout/wxllist.h

@@ -83,10 +83,22 @@ class wxFont;
 class wxLayoutObject
 {
 public:
-   /// This structure can be used to contain data associated with the object.
+   /** This structure can be used to contain data associated with the
+       object.
+       It is refcounted, so the caller has to do a DecRef() on it
+       instead of a delete.
+   */
    struct UserData
    {
-      virtual ~UserData() { }
+      UserData() { m_refcount = 1; }
+      void IncRef(void) { m_refcount++; }
+      void DecRef(void) { m_refcount--; if(m_refcount == 0) delete this;}
+   private:
+      int m_refcount;
+   protected:
+      virtual ~UserData() { wxASSERT(m_refcount == 0); }
+      /// prevents gcc from generating stupid warnings
+      friend class dummy_UserData;
    };
 
    /// return the type of this object
@@ -125,7 +137,7 @@ public:
    /// constructor
    wxLayoutObject() { m_UserData = NULL; }
    /// delete the user data
-   virtual ~wxLayoutObject() { if(m_UserData) delete m_UserData; }
+   virtual ~wxLayoutObject() { if(m_UserData) m_UserData->DecRef(); }
 
 #ifdef WXLAYOUT_DEBUG
    virtual void Debug(void);
@@ -134,10 +146,20 @@ public:
    /** Tells the object about some user data. This data is associated
        with the object and will be deleted at destruction time.
    */
-   void   SetUserData(UserData *data) { m_UserData = data; }
+   void   SetUserData(UserData *data)
-   /** Return the user data. */
+      {
-   void * GetUserData(void) const { return m_UserData; }
+         if(m_UserData)
+            m_UserData->DecRef();
+         m_UserData = data;
+         m_UserData->IncRef();
+      }
    
+   /** Return the user data. */
+   void * GetUserData(void) const { if(m_UserData) m_UserData->IncRef(); return m_UserData; }
+
+   /** Makes a copy of this object.
+    */
+   virtual wxLayoutObject *Copy(void) = 0;
 private:
    /// optional data for application's use
    UserData *m_UserData;
@@ -192,7 +214,9 @@ public:
    // for editing:
    wxString & GetText(void) { return m_Text; }
    void SetText(wxString const &text) { m_Text = text; }
-
+   /** Makes a copy of this object.
+    */
+   virtual wxLayoutObject *Copy(void);
 private:
    wxString m_Text;
    /// size of the box containing text
@@ -230,7 +254,11 @@ public:
    virtual wxPoint GetSize(CoordType * top, CoordType *bottom) const;
    /// Return just the width of the object on the screen.
    virtual CoordType GetWidth(void) const { return m_Icon->GetWidth(); }
-
+   // return a pointer to the icon
+   wxBitmap *GetIcon(void) const { return m_Icon; }
+   /** Makes a copy of this object.
+    */
+   virtual wxLayoutObject *Copy(void);
 private:
    wxBitmap *m_Icon;
 };
@@ -269,6 +297,9 @@ public:
    void GetStyle(wxLayoutStyleInfo *si) const;
    /// return the background colour for setting colour of window
    wxColour const *GetBGColour(void) const { return m_ColourBG; }
+   /** Makes a copy of this object.
+    */
+   virtual wxLayoutObject *Copy(void);
 private:
    /// the font to use
    wxFont *m_font;
@@ -539,7 +570,9 @@ public:
               int underline=0,
               char const *fg="black",
               char const *bg="white");
-
+   /// Empty: clear the list but leave font settings.
+   void Empty(void);
+   
    /**@name Cursor Management */
    //@{
    /** Set new cursor position.

user/wxLayout/wxlparser.cpp

@@ -32,7 +32,7 @@ inline static bool IsEndOfLine(const char *p, int mode)
       (((*p == '\r') && (*(p + 1) == '\n'))||(*p == '\n'));
 }
 
-void wxLayoutImportText(wxLayoutList &list, wxString const &str, int withflag)
+void wxLayoutImportText(wxLayoutList *list, wxString const &str, int withflag)
 {
    char * cptr = (char *)str.c_str(); // string gets changed only temporarily
    const char * begin = cptr;
@@ -45,7 +45,7 @@ void wxLayoutImportText(wxLayoutList &list, wxString const &str, int withflag)
          cptr++;
       backup = *cptr;
       *cptr = '\0';
-      list.Insert(begin);
+      list->Insert(begin);
       *cptr = backup;
 
       // check if it's the end of this line
@@ -54,7 +54,7 @@ void wxLayoutImportText(wxLayoutList &list, wxString const &str, int withflag)
          // if it was "\r\n", skip the following '\n'
          if ( *cptr == '\r' )
             cptr++;
-         list.LineBreak();
+         list->LineBreak();
       }
       else if(backup == '\0') // reached end of string
          break;
@@ -158,7 +158,7 @@ wxLayoutExportObject *wxLayoutExport(wxLayoutExportStatus *status,
 {
    wxASSERT(status);
    wxLayoutExportObject * export;
-
+   
    if(status->m_iterator == NULLIT) // end of line
    {
       if(!status->m_line || status->m_line->GetNextLine() == NULL) // reached end of list
@@ -168,6 +168,14 @@ wxLayoutExportObject *wxLayoutExport(wxLayoutExportStatus *status,
          status->m_line = status->m_line->GetNextLine();
          status->m_iterator = status->m_line->GetFirstObject();
          export = new wxLayoutExportObject();;
+      if( (mode & WXLO_EXPORT_AS_MASK) == WXLO_EXPORT_AS_OBJECTS) // simple case
+         {
+            export->type = WXLO_EXPORT_OBJECT;
+            export->content.object = *status->m_iterator;
+            status->m_iterator++;
+            return export;
+         }
+         //else: text object:
          export->type = ((mode & WXLO_EXPORT_AS_MASK) == WXLO_EXPORT_AS_HTML)
             ?  WXLO_EXPORT_HTML : WXLO_EXPORT_TEXT;
          if((mode & WXLO_EXPORT_WITH_CRLF) == WXLO_EXPORT_WITH_CRLF)

user/wxLayout/wxlparser.h

@@ -68,14 +68,14 @@ struct wxLayoutExportStatus
 
 #ifdef OS_WIN
 /// import text into a wxLayoutList (including linefeeds):
-void wxLayoutImportText(wxLayoutList &list, wxString const &str,
+void wxLayoutImportText(wxLayoutList *list, wxString const &str,
                         int withflag = WXLO_EXPORT_WITH_CRLF);
 
 wxLayoutExportObject *wxLayoutExport(wxLayoutExportStatus *status,
                                int mode = WXLO_EXPORT_AS_TEXT|WXLO_EXPORT_WITH_CRLF); 
 #else
 /// import text into a wxLayoutList (including linefeeds):
-void wxLayoutImportText(wxLayoutList &list, wxString const &str,
+void wxLayoutImportText(wxLayoutList *list, wxString const &str,
                         int withflag = WXLO_EXPORT_WITH_LF_ONLY);
 
 /// export text in a given format FIXME-MT: not thread safe, uses static variable

user/wxLayout/wxlwindow.cpp

@@ -27,10 +27,11 @@
 #       undef StartDoc
 #   endif
 #   include "wxlwindow.h"
+#   include "wxlparser.h"
 #endif
 
 #include <ctype.h>
-
+#include <wx/clipbrd.h>
 
 #define WXLO_XOFFSET   4
 #define WXLO_YOFFSET   4
@@ -266,11 +267,23 @@ wxLayoutWindow::OnChar(wxKeyEvent& event)
 void
 wxLayoutWindow::OnPaint( wxPaintEvent &WXUNUSED(event))  // or: OnDraw(wxDC& dc)
 {
-   DoPaint();
+   m_ScrollToCursor = false;
+   InternalPaint();
 }
 
 void
 wxLayoutWindow::DoPaint(bool scrollToCursor)
+{
+   m_ScrollToCursor = scrollToCursor;
+#ifdef __WXGTK__
+   InternalPaint();
+#else
+   Refresh();
+#endif
+}
+
+void
+wxLayoutWindow::InternalPaint(void)
 {
    wxPaintDC dc( this );
    PrepareDC( dc );
@@ -301,7 +314,7 @@ wxLayoutWindow::DoPaint(bool scrollToCursor)
    /* Make sure that the scrollbars are at a position so that the
       cursor is visible if we are editing. */
       /** Scroll so that cursor is visible! */
-   if(IsEditable() && scrollToCursor)
+   if(IsEditable() && m_ScrollToCursor)
    {
       wxPoint cc = m_llist->GetCursorScreenPos();
       if(cc.x < x0 || cc.y < y0
@@ -366,6 +379,22 @@ wxLayoutWindow::ResizeScrollbars(bool exact)
    }
 }
 
+void
+wxLayoutWindow::Paste(void)
+{
+   // Read some text
+   if (wxTheClipboard->Open())
+   {
+      wxTextDataObject data;
+      if (wxTheClipboard->IsSupported(wxDF_TEXT))
+      {
+         wxTheClipboard->GetData(&data);
+         wxLayoutImportText( m_llist, data.GetText());
+      }  
+      wxTheClipboard->Close();
+   }
+}
+
 
 wxMenu *
 wxLayoutWindow::MakeFormatMenu()

user/wxLayout/wxlwindow.h

@@ -16,7 +16,7 @@
 #  include   <wx/wx.h>
 #endif
 
-#include   "wxllist.h"
+#include "wxllist.h"
 
 #ifndef WXLOWIN_MENU_FIRST
 #   define WXLOWIN_MENU_FIRST 12000
@@ -76,7 +76,9 @@ public:
    void SetEditable(bool toggle) { m_Editable = toggle; }
    /// Query whether list can be edited by user.
    bool IsEditable(void) const { return m_Editable; }
-
+   /// Pastes text from clipboard.
+   void Paste(void);
+   
    //@}
    
    void EnablePopup(bool enable = true) { m_DoPopupMenu = enable; }
@@ -87,6 +89,8 @@ public:
    void SetWrapMargin(CoordType margin) { m_WrapMargin = margin; }
    
    /** Redraws the window.
+       Internally, this stores the parameter and calls a refresh on
+       wxMSW, draws directly on wxGTK.
        @param scrollToCursor if true, scroll the window so that the
        cursor becomes visible
    */
@@ -121,16 +125,17 @@ public:
 
    /// Creates a wxMenu for use as a format popup.
    static wxMenu * MakeFormatMenu(void);
-   /// Set dirty flag.
-   void SetDirty(void) { m_Dirty = true; }
-protected:
    /**@name Dirty flag handling for optimisations. */
    //@{
+   /// Set dirty flag.
+   void SetDirty(void) { m_Dirty = true; }
    /// Query whether window needs redrawing.
    bool IsDirty(void) const { return m_Dirty; }
    /// Reset dirty flag.
    void ResetDirty(void) { m_Dirty = false; }
    //@}
+   /// Redraws the window, used by DoPaint() or OnPaint().
+   void InternalPaint(void);
 protected:   
    /// generic function for mouse events processing
    void OnMouse(int eventId, wxMouseEvent& event);
@@ -145,6 +150,8 @@ protected:
    bool m_HaveFocus;
    /// do we handle clicks of the right mouse button?
    bool m_DoPopupMenu;
+   /// Should InternalPaint() scroll to cursor.
+   bool m_ScrollToCursor;
    /// the menu
    wxMenu * m_PopupMenu;
    /// for derived classes, set when mouse is clicked