user/wxLayout/wxlwindow.h

   1 /*-*- c++ -*-********************************************************
   2  * wxLwindow.h : a scrolled Window for displaying/entering rich text*
   3  *                                                                  *
   4  * (C) 1998 by Karsten Ballüder (Ballueder@usa.net)                 *
   5  *                                                                  *
   6  * $Id$
   7  *******************************************************************/
   8 #ifndef WXLWINDOW_H
   9 #define WXLWINDOW_H
  10
  11 #ifdef __GNUG__
  12 #   pragma interface "wxlwindow.h"
  13 #endif
  14
  15 #ifndef USE_PCH
  16 #  include   <wx/wx.h>
  17 #endif
  18
  19 #include   "wxllist.h"
  20
  21 enum
  22 {
  23    WXLOWIN_MENU_LARGER = 12000,
  24    WXLOWIN_MENU_SMALLER,
  25    WXLOWIN_MENU_UNDERLINE,
  26    WXLOWIN_MENU_BOLD,
  27    WXLOWIN_MENU_ITALICS,
  28    WXLOWIN_MENU_ROMAN,
  29    WXLOWIN_MENU_TYPEWRITER,
  30    WXLOWIN_MENU_SANSSERIF,
  31    WXLOWIN_MENU_RCLICK,
  32    WXLOWIN_MENU_LCLICK,
  33    WXLOWIN_MENU_DBLCLICK
  34
  35 };
  36
  37 class wxLayoutWindow : public wxScrolledWindow
  38 {
  39 public:
  40    /** Constructor.
  41        @param parent parent window to display this panel in
  42    */
  43    wxLayoutWindow(wxWindow *parent);
  44
  45    /// Destructor.
  46    virtual ~wxLayoutWindow();
  47
  48    /* Returns a reference to the wxLayoutList object.
  49       @return the list
  50    */
  51    wxLayoutList & GetLayoutList(void) { return m_llist; }
  52
  53    // clears the window and sets default parameters:
  54    void Clear(int family = wxROMAN, int size=12, int style=wxNORMAL, int weight=wxNORMAL,
  55               int underline=0, char const *fg="black", char const
  56               *bg="white")
  57       {
  58          GetLayoutList().Clear(family,size,style,weight,underline,fg,bg);
  59          SetBackgroundColour( *GetLayoutList().GetDefaults()->GetBGColour());
  60          Update();
  61          m_bDirty = FALSE;
  62       }
  63
  64    // callbacks
  65    // NB: these functions are used as event handlers and must not be virtual
  66    void OnPaint(wxPaintEvent &event);
  67    void OnLeftMouseClick(wxMouseEvent& event)
  68       { OnMouse(WXLOWIN_MENU_LCLICK, event); }
  69    void OnRightMouseClick(wxMouseEvent& event)
  70       { OnMouse(WXLOWIN_MENU_RCLICK, event); }
  71    void OnMouseDblClick(wxMouseEvent& event)
  72       { OnMouse(WXLOWIN_MENU_DBLCLICK, event); }
  73
  74    void OnChar(wxKeyEvent& event);
  75    void OnMenu(wxCommandEvent& event);
  76
  77    void EnablePopup(bool enable = true) { m_DoPopupMenu = enable; }
  78    /// gets called by either Update() or OnPaint()
  79    void DoPaint(bool cursoronly = false);
  80
  81 #ifdef __WXMSW__
  82    virtual long MSWGetDlgCode();
  83 #endif //MSW
  84
  85    /// if exact == false, assume 50% extra size for the future
  86    void UpdateScrollbars(bool exact = false);  // don't change this to true!
  87    void Print(wxDC &dc);
  88    wxMenu * MakeFormatMenu(void);
  89
  90    /// if the flag is true, we send events when user clicks on embedded objects
  91    inline void SetMouseTracking(bool doIt = true) { m_doSendEvents = doIt; }
  92
  93    // dirty flag access
  94    bool IsDirty() const { return m_llist.IsDirty(); }
  95    void ResetDirty()    { m_llist.ResetDirty();     }
  96
  97    void OnSetFocus(wxFocusEvent &ev);
  98    void OnKillFocus(wxFocusEvent &ev);
  99 protected:
 100    /// Deletes from cursor to end of line.
 101    void DeleteToEndOfLine(void);
 102    /// Deletes everything left of cursor.
 103    void DeleteToBeginOfLine(void);
 104    /// Goto end of line.
 105    void GotoEndOfLine(void);
 106    /// Goto begin of line.
 107    void GotoBeginOfLine(void);
 108    /// Delete Line
 109    void DeleteLine(void);
 110    /// generic function for mouse events processing
 111    void OnMouse(int eventId, wxMouseEvent& event);
 112    /// scroll to cursor
 113    void ScrollToCursor(void);
 114
 115    /// repaint if needed
 116    void Update(void);
 117
 118    /// for sending events
 119    wxWindow *m_Parent;
 120    bool m_doSendEvents;
 121
 122    /// the layout list to be displayed
 123    wxLayoutList m_llist;
 124
 125    /// Where does the current view start?
 126    int m_ViewStartX; int m_ViewStartY;
 127
 128    /// do we have unsaved data?
 129    bool m_bDirty;
 130
 131    /// do we handle clicks of the right mouse button?
 132    bool m_DoPopupMenu;
 133    /// the menu
 134    wxMenu * m_PopupMenu;
 135    /// for derived classes, set when mouse is clicked
 136    wxPoint m_ClickPosition;
 137    /// for scrollbar calculations:
 138    int m_maxx;
 139    int m_maxy;
 140    int m_lineHeight;
 141 private:
 142    wxMemoryDC  *m_memDC;
 143    wxBitmap    *m_bitmap;
 144    wxPoint      m_bitmapSize;
 145
 146    DECLARE_EVENT_TABLE()
 147 };
 148
 149 #endif