Prevent seg fault for older GTK+

[wxWidgets.git] / include / wx / html / htmlcell.h

diff --git a/include/wx/html/htmlcell.h b/include/wx/html/htmlcell.h
index 09e3cd29b060f95af62fd5fc270d2538438d1709..6e50289cc99a10be4319670d19b497d2f2ef44eb 100644 (file)
--- a/include/wx/html/htmlcell.h
+++ b/include/wx/html/htmlcell.h
@@ -8,14 +8,9 @@
 // Licence:     wxWindows licence
 /////////////////////////////////////////////////////////////////////////////
 
 // Licence:     wxWindows licence
 /////////////////////////////////////////////////////////////////////////////
 

-

 #ifndef _WX_HTMLCELL_H_
 #define _WX_HTMLCELL_H_
 
 #ifndef _WX_HTMLCELL_H_
 #define _WX_HTMLCELL_H_
 

-#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
-#pragma interface "htmlcell.h"
-#endif
-

 #include "wx/defs.h"
 
 #if wxUSE_HTML
 #include "wx/defs.h"
 
 #if wxUSE_HTML


@@ -25,6 +20,7 @@
 #include "wx/window.h"
 
 
 #include "wx/window.h"
 
 

+class WXDLLIMPEXP_HTML wxHtmlWindowInterface;

 class WXDLLIMPEXP_HTML wxHtmlLinkInfo;
 class WXDLLIMPEXP_HTML wxHtmlCell;
 class WXDLLIMPEXP_HTML wxHtmlContainerCell;
 class WXDLLIMPEXP_HTML wxHtmlLinkInfo;
 class WXDLLIMPEXP_HTML wxHtmlCell;
 class WXDLLIMPEXP_HTML wxHtmlContainerCell;


@@ -150,6 +146,13 @@ enum
 };
 
 
 };
 
 

+// Superscript/subscript/normal script mode of a cell
+enum wxHtmlScriptMode
+{
+    wxHTML_SCRIPT_NORMAL,
+    wxHTML_SCRIPT_SUB,
+    wxHTML_SCRIPT_SUP
+};

 
 
 // ---------------------------------------------------------------------------
 
 
 // ---------------------------------------------------------------------------


@@ -181,6 +184,10 @@ public:
     int GetHeight() const {return m_Height;}
     int GetDescent() const {return m_Descent;}
 
     int GetHeight() const {return m_Height;}
     int GetDescent() const {return m_Descent;}
 

+    void SetScriptMode(wxHtmlScriptMode mode, long previousBase);
+    wxHtmlScriptMode GetScriptMode() const { return m_ScriptMode; }
+    long GetScriptBaseline() { return m_ScriptBaseline; }
+

     // Formatting cells are not visible on the screen, they only alter
     // renderer's state.
     bool IsFormattingCell() const { return m_Width == 0 && m_Height == 0; }
     // Formatting cells are not visible on the screen, they only alter
     // renderer's state.
     bool IsFormattingCell() const { return m_Width == 0 && m_Height == 0; }


@@ -195,7 +202,12 @@ public:
         { return m_Link; }
 
     // Returns cursor to be used when mouse is over the cell:
         { return m_Link; }
 
     // Returns cursor to be used when mouse is over the cell:

+    virtual wxCursor GetMouseCursor(wxHtmlWindowInterface *window) const;
+
+#if WXWIN_COMPATIBILITY_2_6
+    // this was replaced by GetMouseCursor, don't use in new code!

     virtual wxCursor GetCursor() const;
     virtual wxCursor GetCursor() const;

+#endif

 
     // return next cell among parent's cells
     wxHtmlCell *GetNext() const {return m_Next;}
 
     // return next cell among parent's cells
     wxHtmlCell *GetNext() const {return m_Next;}


@@ -238,12 +250,23 @@ public:
     //   returns pointer to anchor news
     virtual const wxHtmlCell* Find(int condition, const void* param) const;
 
     //   returns pointer to anchor news
     virtual const wxHtmlCell* Find(int condition, const void* param) const;
 

+

     // This function is called when mouse button is clicked over the cell.
     // This function is called when mouse button is clicked over the cell.

+    // Returns true if a link is clicked, false otherwise.

     //
     //

-    // Parent is pointer to wxHtmlWindow that generated the event
+    // 'window' is pointer to wxHtmlWindowInterface of the window which
+    // generated the event.

     // HINT: if this handling is not enough for you you should use
     //       wxHtmlWidgetCell
     // HINT: if this handling is not enough for you you should use
     //       wxHtmlWidgetCell

-    virtual void OnMouseClick(wxWindow *parent, int x, int y, const wxMouseEvent& event);
+    virtual bool ProcessMouseClick(wxHtmlWindowInterface *window,
+                                   const wxPoint& pos,
+                                   const wxMouseEvent& event);
+
+#if WXWIN_COMPATIBILITY_2_6
+    // this was replaced by ProcessMouseClick, don't use in new code!
+    virtual void OnMouseClick(wxWindow *window,
+                              int x, int y, const wxMouseEvent& event);
+#endif

 
     // This method used to adjust pagebreak position. The parameter is variable
     // that contains y-coordinate of page break (= horizontal line that should
 
     // This method used to adjust pagebreak position. The parameter is variable
     // that contains y-coordinate of page break (= horizontal line that should


@@ -254,8 +277,7 @@ public:
     // Returned value : true if pagebreak was modified, false otherwise
     // Usage : while (container->AdjustPagebreak(&p)) {}
     virtual bool AdjustPagebreak(int *pagebreak,
     // Returned value : true if pagebreak was modified, false otherwise
     // Usage : while (container->AdjustPagebreak(&p)) {}
     virtual bool AdjustPagebreak(int *pagebreak,

-                                 int *known_pagebreaks = NULL,
-                                 int number_of_pages = 0) const;
+                                 wxArrayInt& known_pagebreaks) const;

 
     // Sets cell's behaviour on pagebreaks (see AdjustPagebreak). Default
     // is true - the cell can be split on two pages
 
     // Sets cell's behaviour on pagebreaks (see AdjustPagebreak). Default
     // is true - the cell can be split on two pages


@@ -277,8 +299,14 @@ public:
     virtual wxHtmlCell *FindCellByPos(wxCoord x, wxCoord y,
                                   unsigned flags = wxHTML_FIND_EXACT) const;
 
     virtual wxHtmlCell *FindCellByPos(wxCoord x, wxCoord y,
                                   unsigned flags = wxHTML_FIND_EXACT) const;
 

-    // Returns absolute position of the cell on HTML canvas
-    wxPoint GetAbsPos() const;
+    // Returns absolute position of the cell on HTML canvas.
+    // If rootCell is provided, then it's considered to be the root of the
+    // hierarchy and the returned value is relative to it.
+    wxPoint GetAbsPos(wxHtmlCell *rootCell = NULL) const;
+
+    // Returns root cell of the hierarchy (i.e. grand-grand-...-parent that
+    // doesn't have a parent itself)
+    wxHtmlCell *GetRootCell() const;

 
     // Returns first (last) terminal cell inside this cell. It may return NULL,
     // but it is rare -- only if there are no terminals in the tree.
 
     // Returns first (last) terminal cell inside this cell. It may return NULL,
     // but it is rare -- only if there are no terminals in the tree.


@@ -302,21 +330,26 @@ public:
         { return wxEmptyString; }
 
 protected:
         { return wxEmptyString; }
 
 protected:

+    // pointer to the next cell

     wxHtmlCell *m_Next;
     wxHtmlCell *m_Next;

-            // pointer to the next cell
+    // pointer to parent cell

     wxHtmlContainerCell *m_Parent;
     wxHtmlContainerCell *m_Parent;

-            // pointer to parent cell
+
+    // dimensions of fragment (m_Descent is used to position text & images)

     long m_Width, m_Height, m_Descent;
     long m_Width, m_Height, m_Descent;

-            // dimensions of fragment
-            // m_Descent is used to position text&images..
+    // position where the fragment is drawn:

     long m_PosX, m_PosY;
     long m_PosX, m_PosY;

-            // position where the fragment is drawn
+
+    // superscript/subscript/normal:
+    wxHtmlScriptMode m_ScriptMode;
+    long m_ScriptBaseline;
+
+    // destination address if this fragment is hypertext link, NULL otherwise

     wxHtmlLinkInfo *m_Link;
     wxHtmlLinkInfo *m_Link;

-            // destination address if this fragment is hypertext link, NULL otherwise
+    // true if this cell can be placed on pagebreak, false otherwise

     bool m_CanLiveOnPagebreak;
     bool m_CanLiveOnPagebreak;

-            // true if this cell can be placed on pagebreak, false otherwise
+    // unique identifier of the cell, generated from "id" property of tags

     wxString m_id;
     wxString m_id;

-            // unique identifier of the cell, generated from "id" property of tags

 
     DECLARE_ABSTRACT_CLASS(wxHtmlCell)
     DECLARE_NO_COPY_CLASS(wxHtmlCell)
 
     DECLARE_ABSTRACT_CLASS(wxHtmlCell)
     DECLARE_NO_COPY_CLASS(wxHtmlCell)


@@ -338,18 +371,18 @@ protected:
 class WXDLLIMPEXP_HTML wxHtmlWordCell : public wxHtmlCell
 {
 public:
 class WXDLLIMPEXP_HTML wxHtmlWordCell : public wxHtmlCell
 {
 public:

-    wxHtmlWordCell(const wxString& word, wxDC& dc);
+    wxHtmlWordCell(const wxString& word, const wxDC& dc);

     void Draw(wxDC& dc, int x, int y, int view_y1, int view_y2,
               wxHtmlRenderingInfo& info);
     void Draw(wxDC& dc, int x, int y, int view_y1, int view_y2,
               wxHtmlRenderingInfo& info);

-    wxCursor GetCursor() const;
+    virtual wxCursor GetMouseCursor(wxHtmlWindowInterface *window) const;

     wxString ConvertToText(wxHtmlSelection *sel) const;
     bool IsLinebreakAllowed() const { return m_allowLinebreak; }
 
     void SetPreviousWord(wxHtmlWordCell *cell);
 
 protected:
     wxString ConvertToText(wxHtmlSelection *sel) const;
     bool IsLinebreakAllowed() const { return m_allowLinebreak; }
 
     void SetPreviousWord(wxHtmlWordCell *cell);
 
 protected:

-    void SetSelectionPrivPos(wxDC& dc, wxHtmlSelection *s) const;
-    void Split(wxDC& dc,
+    void SetSelectionPrivPos(const wxDC& dc, wxHtmlSelection *s) const;
+    void Split(const wxDC& dc,

                const wxPoint& selFrom, const wxPoint& selTo,
                unsigned& pos1, unsigned& pos2) const;
 
                const wxPoint& selFrom, const wxPoint& selTo,
                unsigned& pos1, unsigned& pos2) const;
 


@@ -370,14 +403,15 @@ class WXDLLIMPEXP_HTML wxHtmlContainerCell : public wxHtmlCell
 {
 public:
     wxHtmlContainerCell(wxHtmlContainerCell *parent);
 {
 public:
     wxHtmlContainerCell(wxHtmlContainerCell *parent);

-    ~wxHtmlContainerCell();
+    virtual ~wxHtmlContainerCell();

 
     virtual void Layout(int w);
     virtual void Draw(wxDC& dc, int x, int y, int view_y1, int view_y2,
                       wxHtmlRenderingInfo& info);
     virtual void DrawInvisible(wxDC& dc, int x, int y,
                                wxHtmlRenderingInfo& info);
 
     virtual void Layout(int w);
     virtual void Draw(wxDC& dc, int x, int y, int view_y1, int view_y2,
                       wxHtmlRenderingInfo& info);
     virtual void DrawInvisible(wxDC& dc, int x, int y,
                                wxHtmlRenderingInfo& info);

-    virtual bool AdjustPagebreak(int *pagebreak, int *known_pagebreaks = NULL, int number_of_pages = 0) const;
+/*    virtual bool AdjustPagebreak(int *pagebreak, int *known_pagebreaks = NULL, int number_of_pages = 0) const;*/
+    virtual bool AdjustPagebreak(int *pagebreak, wxArrayInt& known_pagebreaks) const;

 
     // insert cell at the end of m_Cells list
     void InsertCell(wxHtmlCell *cell);
 
     // insert cell at the end of m_Cells list
     void InsertCell(wxHtmlCell *cell);


@@ -413,12 +447,20 @@ public:
     void SetBorder(const wxColour& clr1, const wxColour& clr2) {m_UseBorder = true; m_BorderColour1 = clr1, m_BorderColour2 = clr2;}
     virtual wxHtmlLinkInfo* GetLink(int x = 0, int y = 0) const;
     virtual const wxHtmlCell* Find(int condition, const void* param) const;
     void SetBorder(const wxColour& clr1, const wxColour& clr2) {m_UseBorder = true; m_BorderColour1 = clr1, m_BorderColour2 = clr2;}
     virtual wxHtmlLinkInfo* GetLink(int x = 0, int y = 0) const;
     virtual const wxHtmlCell* Find(int condition, const void* param) const;

-    virtual void OnMouseClick(wxWindow *parent, int x, int y, const wxMouseEvent& event);

 
 

-    virtual wxHtmlCell* GetFirstChild() const { return m_Cells; }
-#if WXWIN_COMPATIBILITY_2_4
-    wxDEPRECATED( wxHtmlCell* GetFirstCell() const );
+#if WXWIN_COMPATIBILITY_2_6
+    // this was replaced by ProcessMouseClick, don't use in new code!
+    virtual void OnMouseClick(wxWindow *window,
+                              int x, int y, const wxMouseEvent& event);

 #endif
 #endif

+    virtual bool ProcessMouseClick(wxHtmlWindowInterface *window,
+                                   const wxPoint& pos,
+                                   const wxMouseEvent& event);
+
+    virtual wxHtmlCell* GetFirstChild() const { return m_Cells; }
+
+    // returns last child cell:
+    wxHtmlCell* GetLastChild() const { return m_LastCell; }

 
     // see comment in wxHtmlCell about this method
     virtual bool IsTerminalCell() const { return false; }
 
     // see comment in wxHtmlCell about this method
     virtual bool IsTerminalCell() const { return false; }


@@ -432,7 +474,7 @@ public:
 
     // Removes indentation on top or bottom of the container (i.e. above or
     // below first/last terminal cell). For internal use only.
 
     // Removes indentation on top or bottom of the container (i.e. above or
     // below first/last terminal cell). For internal use only.

-    void RemoveExtraSpacing(bool top, bool bottom);
+    virtual void RemoveExtraSpacing(bool top, bool bottom);

 
     // Returns the maximum possible length of the container.
     // Call Layout at least once before using GetMaxTotalWidth()
 
     // Returns the maximum possible length of the container.
     // Call Layout at least once before using GetMaxTotalWidth()


@@ -475,12 +517,6 @@ protected:
     DECLARE_NO_COPY_CLASS(wxHtmlContainerCell)
 };
 
     DECLARE_NO_COPY_CLASS(wxHtmlContainerCell)
 };
 

-#if WXWIN_COMPATIBILITY_2_4
-inline wxHtmlCell* wxHtmlContainerCell::GetFirstCell() const
-    { return GetFirstChild(); }
-#endif
-
-

 
 
 // ---------------------------------------------------------------------------
 
 
 // ---------------------------------------------------------------------------


@@ -549,7 +585,7 @@ public:
     // it's width according to parent container's width
     // (w is percent of parent's width)
     wxHtmlWidgetCell(wxWindow *wnd, int w = 0);
     // it's width according to parent container's width
     // (w is percent of parent's width)
     wxHtmlWidgetCell(wxWindow *wnd, int w = 0);

-    ~wxHtmlWidgetCell() { m_Wnd->Destroy(); }
+    virtual ~wxHtmlWidgetCell() { m_Wnd->Destroy(); }

     virtual void Draw(wxDC& dc, int x, int y, int view_y1, int view_y2,
                       wxHtmlRenderingInfo& info);
     virtual void DrawInvisible(wxDC& dc, int x, int y,
     virtual void Draw(wxDC& dc, int x, int y, int view_y1, int view_y2,
                       wxHtmlRenderingInfo& info);
     virtual void DrawInvisible(wxDC& dc, int x, int y,