// as a basic visual element of HTML page
// Author: Vaclav Slavik
// RCS-ID: $Id$
-// Copyright: (c) 1999 Vaclav Slavik
+// Copyright: (c) 1999-2003 Vaclav Slavik
// Licence: wxWindows Licence
/////////////////////////////////////////////////////////////////////////////
public:
wxHtmlSelection()
: m_fromPos(wxDefaultPosition), m_toPos(wxDefaultPosition),
+ m_fromPrivPos(wxDefaultPosition), m_toPrivPos(wxDefaultPosition),
m_fromCell(NULL), m_toCell(NULL) {}
- void Set(const wxPoint& fromPos, wxHtmlCell *fromCell,
- const wxPoint& toPos, wxHtmlCell *toCell)
- {
- m_fromCell = fromCell;
- m_toCell = toCell;
- m_fromPos = fromPos;
- m_toPos = toPos;
- }
+ void Set(const wxPoint& fromPos, const wxHtmlCell *fromCell,
+ const wxPoint& toPos, const wxHtmlCell *toCell);
+ void Set(const wxHtmlCell *fromCell, const wxHtmlCell *toCell);
- wxHtmlCell *GetFromCell() const { return m_fromCell; }
- wxHtmlCell *GetToCell() const { return m_toCell; }
+ const wxHtmlCell *GetFromCell() const { return m_fromCell; }
+ const wxHtmlCell *GetToCell() const { return m_toCell; }
- // these values are *relative* to From/To cell's origin:
+ // these values are in absolute coordinates:
const wxPoint& GetFromPos() const { return m_fromPos; }
const wxPoint& GetToPos() const { return m_toPos; }
+
+ // these are From/ToCell's private data
+ const wxPoint& GetFromPrivPos() const { return m_fromPrivPos; }
+ const wxPoint& GetToPrivPos() const { return m_toPrivPos; }
+ void SetFromPrivPos(const wxPoint& pos) { m_fromPrivPos = pos; }
+ void SetToPrivPos(const wxPoint& pos) { m_toPrivPos = pos; }
+ void ClearPrivPos() { m_toPrivPos = m_fromPrivPos = wxDefaultPosition; }
const bool IsEmpty() const
{ return m_fromPos == wxDefaultPosition &&
m_toPos == wxDefaultPosition; }
private:
- wxPoint m_fromPos, m_toPos;
- wxHtmlCell *m_fromCell, *m_toCell;
+ wxPoint m_fromPos, m_toPos;
+ wxPoint m_fromPrivPos, m_toPrivPos;
+ const wxHtmlCell *m_fromCell, *m_toCell;
};
class WXDLLEXPORT wxHtmlRenderingState
{
public:
- wxHtmlRenderingState(wxHtmlSelection *s)
- : m_selection(s), m_selState(wxHTML_SEL_OUT) {}
- wxHtmlSelection *GetSelection() const { return m_selection; }
+ wxHtmlRenderingState() : m_selState(wxHTML_SEL_OUT) {}
void SetSelectionState(wxHtmlSelectionState s) { m_selState = s; }
wxHtmlSelectionState GetSelectionState() const { return m_selState; }
const wxColour& GetBgColour() const { return m_bgColour; }
private:
- wxHtmlSelection *m_selection;
wxHtmlSelectionState m_selState;
wxColour m_fgColour, m_bgColour;
};
+
+// HTML rendering customization. This class is used when rendering wxHtmlCells
+// as a callback:
+class WXDLLEXPORT wxHtmlRenderingStyle
+{
+public:
+ virtual wxColour GetSelectedTextColour(const wxColour& clr) = 0;
+ virtual wxColour GetSelectedTextBgColour(const wxColour& clr) = 0;
+};
+
+// Standard style:
+class WXDLLEXPORT wxDefaultHtmlRenderingStyle : public wxHtmlRenderingStyle
+{
+public:
+ virtual wxColour GetSelectedTextColour(const wxColour& clr);
+ virtual wxColour GetSelectedTextBgColour(const wxColour& clr);
+};
+
+
+// Information given to cells when drawing them. Contains rendering state,
+// selection information and rendering style object that can be used to
+// customize the output.
+class WXDLLEXPORT wxHtmlRenderingInfo
+{
+public:
+ wxHtmlRenderingInfo() : m_selection(NULL), m_style(NULL) {}
+
+ void SetSelection(wxHtmlSelection *s) { m_selection = s; }
+ wxHtmlSelection *GetSelection() const { return m_selection; }
+
+ void SetStyle(wxHtmlRenderingStyle *style) { m_style = style; }
+ wxHtmlRenderingStyle& GetStyle() { return *m_style; }
+
+ wxHtmlRenderingState& GetState() { return m_state; }
+
+protected:
+ wxHtmlSelection *m_selection;
+ wxHtmlRenderingStyle *m_style;
+ wxHtmlRenderingState m_state;
+};
+
+
// Flags for wxHtmlCell::FindCellByPos
enum
{
- wxHTML_FIND_TERMINAL = 0x0001,
- wxHTML_FIND_NONTERMINAL = 0x0002
+ wxHTML_FIND_EXACT = 1,
+ wxHTML_FIND_NEAREST_BEFORE = 2,
+ wxHTML_FIND_NEAREST_AFTER = 4
};
+
+
// ---------------------------------------------------------------------------
// wxHtmlCell
// Internal data structure. It represents fragments of parsed
// returns the link associated with this cell. The position is position
// within the cell so it varies from 0 to m_Width, from 0 to m_Height
- virtual wxHtmlLinkInfo* GetLink(int WXUNUSED(x) = 0, int WXUNUSED(y) = 0) const
+ virtual wxHtmlLinkInfo* GetLink(int WXUNUSED(x) = 0,
+ int WXUNUSED(y) = 0) const
{ return m_Link; }
- // members access methods
+ // Returns cursor to be used when mouse is over the cell:
+ virtual wxCursor GetCursor() const;
+
+ // return next cell among parent's cells
wxHtmlCell *GetNext() const {return m_Next;}
+ // returns first child cell (if there are any, i.e. if this is container):
+ virtual wxHtmlCell* GetFirstChild() const { return NULL; }
// members writing methods
virtual void SetPos(int x, int y) {m_PosX = x, m_PosY = y;}
virtual void Draw(wxDC& WXUNUSED(dc),
int WXUNUSED(x), int WXUNUSED(y),
int WXUNUSED(view_y1), int WXUNUSED(view_y2),
- wxHtmlRenderingState& WXUNUSED(state)) {}
+ wxHtmlRenderingInfo& WXUNUSED(info)) {}
// proceed drawing actions in case the cell is not visible (scrolled out of
// screen). This is needed to change fonts, colors and so on.
virtual void DrawInvisible(wxDC& WXUNUSED(dc),
int WXUNUSED(x), int WXUNUSED(y),
- wxHtmlRenderingState& WXUNUSED(state)) {}
+ wxHtmlRenderingInfo& WXUNUSED(info)) {}
// This method returns pointer to the FIRST cell for that
// the condition
// nonterminal cells or both. In either case, returned cell is deepest
// cell in cells tree that contains [x,y].
virtual wxHtmlCell *FindCellByPos(wxCoord x, wxCoord y,
- unsigned flags = wxHTML_FIND_TERMINAL) const;
+ unsigned flags = wxHTML_FIND_EXACT) const;
+
+ // Returns absolute position of the cell on HTML canvas
+ wxPoint GetAbsPos() 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.
+ virtual wxHtmlCell *GetFirstTerminal() const
+ { return wxConstCast(this, wxHtmlCell); }
+ virtual wxHtmlCell *GetLastTerminal() const
+ { return wxConstCast(this, wxHtmlCell); }
+
+ // Returns cell's depth, i.e. how far under the root cell it is
+ // (if it is the root, depth is 0)
+ unsigned GetDepth() const;
+
+ // Returns true if the cell appears before 'cell' in natural order of
+ // cells (= as they are read). If cell A is (grand)parent of cell B,
+ // then both A.IsBefore(B) and B.IsBefore(A) always return true.
+ bool IsBefore(wxHtmlCell *cell) const;
+
+ // Converts the cell into text representation. If sel != NULL then
+ // only part of the cell inside the selection is converted.
+ virtual wxString ConvertToText(wxHtmlSelection *WXUNUSED(sel)) const
+ { return wxEmptyString; }
protected:
wxHtmlCell *m_Next;
-//--------------------------------------------------------------------------------
+// ----------------------------------------------------------------------------
// Inherited cells:
-//--------------------------------------------------------------------------------
+// ----------------------------------------------------------------------------
-//--------------------------------------------------------------------------------
+// ----------------------------------------------------------------------------
// wxHtmlWordCell
// Single word in input stream.
-//--------------------------------------------------------------------------------
+// ----------------------------------------------------------------------------
class WXDLLEXPORT wxHtmlWordCell : public wxHtmlCell
{
public:
wxHtmlWordCell(const wxString& word, wxDC& dc);
void Draw(wxDC& dc, int x, int y, int view_y1, int view_y2,
- wxHtmlRenderingState& state);
+ wxHtmlRenderingInfo& info);
+ wxCursor GetCursor() const;
+ wxString ConvertToText(wxHtmlSelection *sel) const;
protected:
+ void SetSelectionPrivPos(wxDC& dc, wxHtmlSelection *s) const;
+ void Split(wxDC& dc,
+ const wxPoint& selFrom, const wxPoint& selTo,
+ unsigned& pos1, unsigned& pos2) const;
+
wxString m_Word;
};
virtual void Layout(int w);
virtual void Draw(wxDC& dc, int x, int y, int view_y1, int view_y2,
- wxHtmlRenderingState& state);
+ wxHtmlRenderingInfo& info);
virtual void DrawInvisible(wxDC& dc, int x, int y,
- wxHtmlRenderingState& state);
+ wxHtmlRenderingInfo& info);
virtual bool AdjustPagebreak(int *pagebreak, int *known_pagebreaks = NULL, int number_of_pages = 0) const;
// insert cell at the end of m_Cells list
virtual void OnMouseClick(wxWindow *parent, int x, int y, const wxMouseEvent& event);
virtual void GetHorizontalConstraints(int *left, int *right) const;
- // returns pointer to the first cell in container or NULL
- wxHtmlCell* GetFirstCell() const {return m_Cells;}
+ virtual wxHtmlCell* GetFirstChild() const { return m_Cells; }
+#if WXWIN_COMPATIBILITY_2_4
+ wxDEPRECATED( wxHtmlCell* GetFirstCell() const );
+#endif
// see comment in wxHtmlCell about this method
virtual bool IsTerminalCell() const { return FALSE; }
virtual wxHtmlCell *FindCellByPos(wxCoord x, wxCoord y,
- unsigned flags = wxHTML_FIND_TERMINAL) const;
+ unsigned flags = wxHTML_FIND_EXACT) const;
+
+ virtual wxHtmlCell *GetFirstTerminal() const;
+ virtual wxHtmlCell *GetLastTerminal() const;
protected:
- void UpdateRenderingStatePre(wxHtmlRenderingState& state,
+ void UpdateRenderingStatePre(wxHtmlRenderingInfo& info,
wxHtmlCell *cell) const;
- void UpdateRenderingStatePost(wxHtmlRenderingState& state,
+ void UpdateRenderingStatePost(wxHtmlRenderingInfo& info,
wxHtmlCell *cell) const;
protected:
DECLARE_NO_COPY_CLASS(wxHtmlContainerCell)
};
+#if WXWIN_COMPATIBILITY_2_4
+inline wxHtmlCell* wxHtmlContainerCell::GetFirstCell() const
+ { return GetFirstChild(); }
+#endif
-//--------------------------------------------------------------------------------
+// ---------------------------------------------------------------------------
// wxHtmlColourCell
// Color changer.
-//--------------------------------------------------------------------------------
+// ---------------------------------------------------------------------------
class WXDLLEXPORT wxHtmlColourCell : public wxHtmlCell
{
public:
wxHtmlColourCell(const wxColour& clr, int flags = wxHTML_CLR_FOREGROUND) : wxHtmlCell() {m_Colour = clr; m_Flags = flags;}
virtual void Draw(wxDC& dc, int x, int y, int view_y1, int view_y2,
- wxHtmlRenderingState& state);
+ wxHtmlRenderingInfo& info);
virtual void DrawInvisible(wxDC& dc, int x, int y,
- wxHtmlRenderingState& state);
+ wxHtmlRenderingInfo& info);
protected:
wxColour m_Colour;
public:
wxHtmlFontCell(wxFont *font) : wxHtmlCell() { m_Font = (*font); }
virtual void Draw(wxDC& dc, int x, int y, int view_y1, int view_y2,
- wxHtmlRenderingState& state);
+ wxHtmlRenderingInfo& info);
virtual void DrawInvisible(wxDC& dc, int x, int y,
- wxHtmlRenderingState& state);
+ wxHtmlRenderingInfo& info);
protected:
wxFont m_Font;
wxHtmlWidgetCell(wxWindow *wnd, int w = 0);
~wxHtmlWidgetCell() { m_Wnd->Destroy(); }
virtual void Draw(wxDC& dc, int x, int y, int view_y1, int view_y2,
- wxHtmlRenderingState& state);
+ wxHtmlRenderingInfo& info);
virtual void DrawInvisible(wxDC& dc, int x, int y,
- wxHtmlRenderingState& state);
+ wxHtmlRenderingInfo& info);
virtual void Layout(int w);
protected:
+// ----------------------------------------------------------------------------
+// wxHtmlTerminalCellsInterator
+// ----------------------------------------------------------------------------
+
+class WXDLLEXPORT wxHtmlTerminalCellsInterator
+{
+public:
+ wxHtmlTerminalCellsInterator(const wxHtmlCell *from, const wxHtmlCell *to)
+ : m_to(to), m_pos(from) {}
+
+ operator bool() const { return m_pos != NULL; }
+ const wxHtmlCell* operator++();
+ const wxHtmlCell* operator->() const { return m_pos; }
+ const wxHtmlCell* operator*() const { return m_pos; }
+
+private:
+ const wxHtmlCell *m_to, *m_pos;
+};
+
+
#endif // wxUSE_HTML
projects / wxWidgets.git / blobdiff