This commit was manufactured by cvs2svn to create tag

'BEFORE_LINE_WRAP'.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/tags/BEFORE_LINE_WRAP@8716 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/univ/textctrl.h

@@ -0,0 +1,427 @@
+/////////////////////////////////////////////////////////////////////////////
+// Name:        wx/univ/textctrl.h
+// Purpose:     wxTextCtrl class
+// Author:      Vadim Zeitlin
+// Modified by:
+// Created:     15.09.00
+// RCS-ID:      $Id$
+// Copyright:   (c) 2000 Vadim Zeitlin
+// Licence:     wxWindows licence
+/////////////////////////////////////////////////////////////////////////////
+
+#ifndef _WX_UNIV_TEXTCTRL_H_
+#define _WX_UNIV_TEXTCTRL_H_
+
+#ifdef __GNUG__
+    #pragma interface "univtextctrl.h"
+#endif
+
+class WXDLLEXPORT wxCaret;
+class WXDLLEXPORT wxTextCtrlCommandProcessor;
+
+#include "wx/scrolwin.h"    // for wxScrollHelper
+
+// ----------------------------------------------------------------------------
+// wxTextCtrl actions
+// ----------------------------------------------------------------------------
+
+// cursor movement and also selection and delete operations
+#define wxACTION_TEXT_GOTO          _T("goto")  // to pos in numArg
+#define wxACTION_TEXT_FIRST         _T("first") // go to pos 0
+#define wxACTION_TEXT_LAST          _T("last")  // go to last pos
+#define wxACTION_TEXT_HOME          _T("home")
+#define wxACTION_TEXT_END           _T("end")
+#define wxACTION_TEXT_LEFT          _T("left")
+#define wxACTION_TEXT_RIGHT         _T("right")
+#define wxACTION_TEXT_UP            _T("up")
+#define wxACTION_TEXT_DOWN          _T("down")
+#define wxACTION_TEXT_WORD_LEFT     _T("wordleft")
+#define wxACTION_TEXT_WORD_RIGHT    _T("wordright")
+#define wxACTION_TEXT_PAGE_UP       _T("pageup")
+#define wxACTION_TEXT_PAGE_DOWN     _T("pagedown")
+
+// clipboard operations
+#define wxACTION_TEXT_COPY          _T("copy")
+#define wxACTION_TEXT_CUT           _T("cut")
+#define wxACTION_TEXT_PASTE         _T("paste")
+
+// insert text at the cursor position: the text is in strArg of PerformAction
+#define wxACTION_TEXT_INSERT        _T("insert")
+
+// if the action starts with either of these prefixes and the rest of the
+// string is one of the movement commands, it means to select/delete text from
+// the current cursor position to the new one
+#define wxACTION_TEXT_PREFIX_SEL    _T("sel")
+#define wxACTION_TEXT_PREFIX_DEL    _T("del")
+
+// mouse selection
+#define wxACTION_TEXT_ANCHOR_SEL    _T("anchorsel")
+#define wxACTION_TEXT_EXTEND_SEL    _T("extendsel")
+#define wxACTION_TEXT_SEL_WORD      _T("wordsel")
+#define wxACTION_TEXT_SEL_LINE      _T("linesel")
+
+// undo or redo
+#define wxACTION_TEXT_UNDO          _T("undo")
+#define wxACTION_TEXT_REDO          _T("redo")
+
+// ----------------------------------------------------------------------------
+// wxTextCtrl::HitTest return values
+// ----------------------------------------------------------------------------
+
+enum wxTextCtrlHitTestResult
+{
+    wxTE_HT_BEFORE = -1,
+    wxTE_HT_ON_TEXT,
+    wxTE_HT_AFTER
+};
+
+// ----------------------------------------------------------------------------
+// wxTextCtrl
+// ----------------------------------------------------------------------------
+
+class WXDLLEXPORT wxTextCtrl : public wxTextCtrlBase, public wxScrollHelper
+{
+public:
+    // creation
+    // --------
+
+    wxTextCtrl() { Init(); }
+
+    wxTextCtrl(wxWindow *parent,
+               wxWindowID id,
+               const wxString& value = wxEmptyString,
+               const wxPoint& pos = wxDefaultPosition,
+               const wxSize& size = wxDefaultSize,
+               long style = 0,
+               const wxValidator& validator = wxDefaultValidator,
+               const wxString& name = wxTextCtrlNameStr)
+    {
+        Init();
+
+        Create(parent, id, value, pos, size, style, validator, name);
+    }
+
+    bool Create(wxWindow *parent,
+                wxWindowID id,
+                const wxString& value = wxEmptyString,
+                const wxPoint& pos = wxDefaultPosition,
+                const wxSize& size = wxDefaultSize,
+                long style = 0,
+                const wxValidator& validator = wxDefaultValidator,
+                const wxString& name = wxTextCtrlNameStr);
+
+    virtual ~wxTextCtrl();
+
+    // implement base class pure virtuals
+    // ----------------------------------
+
+    virtual wxString GetValue() const;
+    virtual void SetValue(const wxString& value);
+
+    virtual int GetLineLength(long lineNo) const;
+    virtual wxString GetLineText(long lineNo) const;
+    virtual int GetNumberOfLines() const;
+
+    virtual bool IsModified() const;
+    virtual bool IsEditable() const;
+
+    // If the return values from and to are the same, there is no selection.
+    virtual void GetSelection(long* from, long* to) const;
+
+    // operations
+    // ----------
+
+    // editing
+    virtual void Clear();
+    virtual void Replace(long from, long to, const wxString& value);
+    virtual void Remove(long from, long to);
+
+    // clears the dirty flag
+    virtual void DiscardEdits();
+
+    // writing text inserts it at the current position, appending always
+    // inserts it at the end
+    virtual void WriteText(const wxString& text);
+    virtual void AppendText(const wxString& text);
+
+    // translate between the position (which is just an index in the text ctrl
+    // considering all its contents as a single strings) and (x, y) coordinates
+    // which represent column and line.
+    virtual long XYToPosition(long x, long y) const;
+    virtual bool PositionToXY(long pos, long *x, long *y) const;
+
+    virtual void ShowPosition(long pos);
+
+    // Clipboard operations
+    virtual void Copy();
+    virtual void Cut();
+    virtual void Paste();
+
+    // Undo/redo
+    virtual void Undo();
+    virtual void Redo();
+
+    virtual bool CanUndo() const;
+    virtual bool CanRedo() const;
+
+    // Insertion point
+    virtual void SetInsertionPoint(long pos);
+    virtual void SetInsertionPointEnd();
+    virtual long GetInsertionPoint() const;
+    virtual long GetLastPosition() const;
+
+    virtual void SetSelection(long from, long to);
+    virtual void SetEditable(bool editable);
+
+    // wxUniv-specific methods
+    // -----------------------
+
+    // caret stuff
+    virtual void ShowCaret(bool show = TRUE);
+    void HideCaret() { ShowCaret(FALSE); }
+    void CreateCaret(); // for the current font size
+    wxCoord GetCaretPosition(long pos = -1) const; // in pixels, def => current
+
+    // helpers for cursor movement
+    long GetWordStart() const;
+    long GetWordEnd() const;
+
+    // selection helpers
+    bool HasSelection() const
+        { return m_selStart != -1 && m_selEnd > m_selStart; }
+    void ClearSelection();
+    void RemoveSelection();
+    wxString GetSelectionText() const;
+
+    // find the character at this position, return 0 if the character is
+    // really there, -1 if the point is before the beginning of the text/line
+    // and the returned character is the first one to follow it or +1 if it the
+    // position is beyond the end of line/text and the returned character is
+    // the last one
+    //
+    // NB: pt is in device coords (not adjusted for the client area origin nor
+    //     for the scrolling)
+    wxTextCtrlHitTestResult HitTest(const wxPoint& pt,
+                                    long *col, long *row) const;
+
+    // find the character at this position in the given line, return value as
+    // for HitTest()
+    //
+    // NB: x is the logical coord (client and unscrolled)
+    wxTextCtrlHitTestResult HitTestLine(const wxString& line,
+                                        wxCoord x,
+                                        long *colOut) const;
+
+    // bring the given position into view
+    void ShowHorzPosition(wxCoord pos);
+
+    // scroll the window horizontally so that the first character shown is in
+    // position pos
+    void ScrollText(long col);
+
+    // adjust the DC for horz text control scrolling too
+    virtual void DoPrepareDC(wxDC& dc);
+
+    // implementation only from now on
+    // -------------------------------
+
+    // override this to take into account our scrollbar-less scrolling
+    virtual void CalcUnscrolledPosition(int x, int y, int *xx, int *yy) const;
+
+    // set the right colours
+    virtual bool IsContainerWindow() const { return TRUE; }
+    virtual wxBorder GetDefaultBorder() const { return wxBORDER_SUNKEN; }
+
+    // perform an action
+    virtual bool PerformAction(const wxControlAction& action,
+                               long numArg = -1,
+                               const wxString& strArg = wxEmptyString);
+
+    // override these methods to handle the caret
+    virtual bool SetFont(const wxFont &font);
+    virtual bool Enable(bool enable = TRUE);
+
+protected:
+    // draw the text
+    void DrawTextLine(wxDC& dc, const wxRect& rect,
+                      const wxString& text,
+                      long selStart, long selEnd);
+
+    void DoDrawTextInRect(wxDC& dc, const wxRect& rectUpdate);
+
+    virtual void DoDraw(wxControlRenderer *renderer);
+
+    // calc the size from the text extent
+    virtual wxSize DoGetBestClientSize() const;
+
+    // input support
+    virtual wxString GetInputHandlerType() const;
+
+    // common part of all ctors
+    void Init();
+
+    // more readable flag testing methods
+    bool IsSingleLine() const { return !(GetWindowStyle() & wxTE_MULTILINE); }
+    bool IsPassword() const { return (GetWindowStyle() & wxTE_PASSWORD) != 0; }
+    bool WrapLines() const { return !(GetWindowStyle() & wxHSCROLL); }
+
+    // get the extent (width) of the text
+    wxCoord GetTextWidth(const wxString& text) const;
+
+    // get the logical text width (accounting for scrolling)
+    wxCoord GetTotalWidth() const;
+
+    // the text area is the part of the window in which the text can be
+    // displayed, i.e. part of it inside the margins and the real text area is
+    // the area in which the text *is* currently displayed: for example, in the
+    // multiline control case the text area can have extra space at the bottom
+    // which is not tall enough for another line and which is then not included
+    // into the real text area
+    wxRect GetRealTextArea() const;
+
+    // refresh the text in the given (in logical coords) rect
+    void RefreshTextRect(wxRect& rect);
+
+    // refresh the text in the given range (in logical coords) of this line, if
+    // width is 0, refresh to the end of line
+    void RefreshPixelRange(long line, wxCoord start, wxCoord width);
+
+    // refresh the text in the given range (in text coords) in this line
+    void RefreshColRange(long line, long start, long count);
+
+    // refresh the text from in the given line range (inclusive)
+    void RefreshLineRange(long lineFirst, long lineLast);
+
+    // refresh the text in the given range which can span multiple lines
+    // (this method accepts arguments in any order)
+    void RefreshTextRange(long start, long end);
+
+    // get the text to show: either the text itself or the text replaced with
+    // starts for wxTE_PASSWORD control
+    wxString GetTextToShow(const wxString& text) const;
+
+    // get the start and end of the selection for this line: if the line is
+    // outside the selection, both will be -1 and FALSE will be returned
+    bool GetSelectedPartOfLine(long line, int *start, int *end) const;
+
+    // update the text rect: the zone inside our client rect (its coords are
+    // client coords) which contains the text
+    void UpdateTextRect();
+
+    // calculate the last visible position
+    void UpdateLastVisible();
+
+    // move caret to the given position unconditionally
+    // (SetInsertionPoint() does nothing if the position didn't change)
+    void DoSetInsertionPoint(long pos);
+
+    // set the caret to its initial (default) position
+    void InitInsertionPoint();
+
+    // get the width of the longest line in pixels
+    wxCoord GetMaxWidth() const;
+
+    // force recalculation of the max line width
+    void RecalcMaxWidth()
+    {
+        m_widthMax = -1;
+        (void)GetMaxWidth();
+    }
+
+    // update the max width after the given line was modified
+    void UpdateMaxWidth(long line);
+
+    // event handlers
+    void OnIdle(wxIdleEvent& event);
+    void OnChar(wxKeyEvent& event);
+    void OnSize(wxSizeEvent& event);
+
+    // accessors for derived classes (SL stands for single line)
+    const wxString& GetSLValue() const
+    {
+        wxASSERT_MSG( IsSingleLine(), _T("only for single line controls") );
+
+        return m_value;
+    }
+
+    void SetSLValue(const wxString& value)
+    {
+        wxASSERT_MSG( IsSingleLine(), _T("only for single line controls") );
+        m_value = value;
+    }
+
+    // clipboard operations (unlike the versions without Do prefix, they have a
+    // return code)
+    bool DoCut();
+    bool DoPaste();
+
+private:
+    // update the scrollbars (only called from OnIdle)
+    void UpdateScrollbars();
+
+    // the initially specified control size
+    wxSize m_sizeInitial;
+
+    // the control text (only used for single line controls)
+    wxString m_value;
+
+    // the lines of text (only used for multiline controls)
+    wxArrayString m_lines;
+
+    // current position
+    long m_curPos,
+         m_curCol,
+         m_curRow;
+
+    // last position (only used by GetLastPosition())
+    long m_posLast;
+
+    // selection
+    long m_selAnchor,
+         m_selStart,
+         m_selEnd;
+
+    // flags
+    bool m_isModified:1,
+         m_isEditable:1,
+         m_hasCaret:1;
+
+    // the rectangle (in client coordinates) to draw text inside
+    wxRect m_rectText;
+
+    // this section is for the controls without horz scrollbar only
+
+    // the position of the first visible pixel and the first visible column
+    wxCoord m_ofsHorz;
+    long m_colStart;
+
+    // and the last ones (m_posLastVisible is the width but m_colLastVisible
+    // is an absolute value)
+    wxCoord m_posLastVisible;
+    long m_colLastVisible;
+
+    // this section is for the controls with scrollbar(s)
+
+    // the current ranges of the scrollbars
+    int m_scrollRangeX,
+        m_scrollRangeY;
+
+    // should we adjust the horz/vert scrollbar?
+    bool m_updateScrollbarX,
+         m_updateScrollbarY;
+
+    // the max line length in pixels
+    wxCoord m_widthMax;
+
+    // the index of the line which has the length of m_widthMax
+    long m_lineLongest;
+
+    // the object to which we delegate our undo/redo implementation
+    wxTextCtrlCommandProcessor *m_cmdProcessor;
+
+    DECLARE_EVENT_TABLE()
+    DECLARE_DYNAMIC_CLASS(wxTextCtrl)
+};
+
+#endif // _WX_UNIV_TEXTCTRL_H_
+