533 lines
18 KiB
C++
533 lines
18 KiB
C++
/////////////////////////////////////////////////////////////////////////////
|
|
// Name: wx/univ/textctrl.h
|
|
// Purpose: wxTextCtrl class
|
|
// Author: Vadim Zeitlin
|
|
// Modified by:
|
|
// Created: 15.09.00
|
|
// Copyright: (c) 2000 SciTech Software, Inc. (www.scitechsoft.com)
|
|
// Licence: wxWindows licence
|
|
/////////////////////////////////////////////////////////////////////////////
|
|
|
|
#ifndef _WX_UNIV_TEXTCTRL_H_
|
|
#define _WX_UNIV_TEXTCTRL_H_
|
|
|
|
class WXDLLIMPEXP_FWD_CORE wxCaret;
|
|
class WXDLLIMPEXP_FWD_CORE wxTextCtrlCommandProcessor;
|
|
|
|
#include "wx/scrolwin.h" // for wxScrollHelper
|
|
|
|
#include "wx/univ/inphand.h"
|
|
|
|
// ----------------------------------------------------------------------------
|
|
// wxTextCtrl actions
|
|
// ----------------------------------------------------------------------------
|
|
|
|
// cursor movement and also selection and delete operations
|
|
#define wxACTION_TEXT_GOTO wxT("goto") // to pos in numArg
|
|
#define wxACTION_TEXT_FIRST wxT("first") // go to pos 0
|
|
#define wxACTION_TEXT_LAST wxT("last") // go to last pos
|
|
#define wxACTION_TEXT_HOME wxT("home")
|
|
#define wxACTION_TEXT_END wxT("end")
|
|
#define wxACTION_TEXT_LEFT wxT("left")
|
|
#define wxACTION_TEXT_RIGHT wxT("right")
|
|
#define wxACTION_TEXT_UP wxT("up")
|
|
#define wxACTION_TEXT_DOWN wxT("down")
|
|
#define wxACTION_TEXT_WORD_LEFT wxT("wordleft")
|
|
#define wxACTION_TEXT_WORD_RIGHT wxT("wordright")
|
|
#define wxACTION_TEXT_PAGE_UP wxT("pageup")
|
|
#define wxACTION_TEXT_PAGE_DOWN wxT("pagedown")
|
|
|
|
// clipboard operations
|
|
#define wxACTION_TEXT_COPY wxT("copy")
|
|
#define wxACTION_TEXT_CUT wxT("cut")
|
|
#define wxACTION_TEXT_PASTE wxT("paste")
|
|
|
|
// insert text at the cursor position: the text is in strArg of PerformAction
|
|
#define wxACTION_TEXT_INSERT wxT("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 wxT("sel")
|
|
#define wxACTION_TEXT_PREFIX_DEL wxT("del")
|
|
|
|
// mouse selection
|
|
#define wxACTION_TEXT_ANCHOR_SEL wxT("anchorsel")
|
|
#define wxACTION_TEXT_EXTEND_SEL wxT("extendsel")
|
|
#define wxACTION_TEXT_SEL_WORD wxT("wordsel")
|
|
#define wxACTION_TEXT_SEL_LINE wxT("linesel")
|
|
|
|
// undo or redo
|
|
#define wxACTION_TEXT_UNDO wxT("undo")
|
|
#define wxACTION_TEXT_REDO wxT("redo")
|
|
|
|
// ----------------------------------------------------------------------------
|
|
// wxTextCtrl
|
|
// ----------------------------------------------------------------------------
|
|
|
|
class WXDLLIMPEXP_CORE wxTextCtrl : public wxTextCtrlBase,
|
|
public wxScrollHelper
|
|
{
|
|
public:
|
|
// creation
|
|
// --------
|
|
|
|
wxTextCtrl() : wxScrollHelper(this) { 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)
|
|
: wxScrollHelper(this)
|
|
{
|
|
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 int GetLineLength(wxTextCoord lineNo) const;
|
|
virtual wxString GetLineText(wxTextCoord 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(wxTextPos* from, wxTextPos* to) const;
|
|
|
|
// operations
|
|
// ----------
|
|
|
|
// editing
|
|
virtual void Clear();
|
|
virtual void Replace(wxTextPos from, wxTextPos to, const wxString& value);
|
|
virtual void Remove(wxTextPos from, wxTextPos to);
|
|
|
|
// sets/clears the dirty flag
|
|
virtual void MarkDirty();
|
|
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 (logical, i.e. unwrapped) column and line.
|
|
virtual wxTextPos XYToPosition(wxTextCoord x, wxTextCoord y) const;
|
|
virtual bool PositionToXY(wxTextPos pos,
|
|
wxTextCoord *x, wxTextCoord *y) const;
|
|
|
|
// wxUniv-specific: find a screen position (in client coordinates) of the
|
|
// given text position or of the caret
|
|
bool PositionToLogicalXY(wxTextPos pos, wxCoord *x, wxCoord *y) const;
|
|
bool PositionToDeviceXY(wxTextPos pos, wxCoord *x, wxCoord *y) const;
|
|
wxPoint GetCaretPosition() const;
|
|
|
|
virtual void ShowPosition(wxTextPos 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(wxTextPos pos);
|
|
virtual void SetInsertionPointEnd();
|
|
virtual wxTextPos GetInsertionPoint() const;
|
|
virtual wxTextPos GetLastPosition() const;
|
|
|
|
virtual void SetSelection(wxTextPos from, wxTextPos 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
|
|
|
|
// helpers for cursor movement
|
|
wxTextPos GetWordStart() const;
|
|
wxTextPos GetWordEnd() const;
|
|
|
|
// selection helpers
|
|
bool HasSelection() const
|
|
{ return m_selStart != -1 && m_selEnd > m_selStart; }
|
|
void ClearSelection();
|
|
void RemoveSelection();
|
|
wxString GetSelectionText() const;
|
|
|
|
virtual wxTextCtrlHitTestResult HitTest(const wxPoint& pt, long *pos) const;
|
|
virtual wxTextCtrlHitTestResult HitTest(const wxPoint& pt,
|
|
wxTextCoord *col,
|
|
wxTextCoord *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,
|
|
wxTextCoord *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(wxTextCoord 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;
|
|
virtual void CalcScrolledPosition(int x, int y, int *xx, int *yy) const;
|
|
|
|
// perform an action
|
|
virtual bool PerformAction(const wxControlAction& action,
|
|
long numArg = -1,
|
|
const wxString& strArg = wxEmptyString);
|
|
|
|
static wxInputHandler *GetStdInputHandler(wxInputHandler *handlerDef);
|
|
virtual wxInputHandler *DoGetStdInputHandler(wxInputHandler *handlerDef)
|
|
{
|
|
return GetStdInputHandler(handlerDef);
|
|
}
|
|
|
|
// override these methods to handle the caret
|
|
virtual bool SetFont(const wxFont &font);
|
|
virtual bool Enable(bool enable = true);
|
|
|
|
// more readable flag testing methods
|
|
bool IsPassword() const { return HasFlag(wxTE_PASSWORD); }
|
|
bool WrapLines() const { return m_wrapLines; }
|
|
|
|
// only for wxStdTextCtrlInputHandler
|
|
void RefreshSelection();
|
|
|
|
// override wxScrollHelper method to prevent (auto)scrolling beyond the end
|
|
// of line
|
|
virtual bool SendAutoScrollEvents(wxScrollWinEvent& event) const;
|
|
|
|
// idle processing
|
|
virtual void OnInternalIdle();
|
|
|
|
protected:
|
|
// ensure we have correct default border
|
|
virtual wxBorder GetDefaultBorder() const { return wxBORDER_SUNKEN; }
|
|
|
|
// override base class methods
|
|
virtual void DoDrawBorder(wxDC& dc, const wxRect& rect);
|
|
virtual void DoDraw(wxControlRenderer *renderer);
|
|
|
|
// calc the size from the text extent
|
|
virtual wxSize DoGetBestClientSize() const;
|
|
|
|
// implements Set/ChangeValue()
|
|
virtual void DoSetValue(const wxString& value, int flags = 0);
|
|
virtual wxString DoGetValue() const;
|
|
|
|
// common part of all ctors
|
|
void Init();
|
|
|
|
// drawing
|
|
// -------
|
|
|
|
// draw the text in the given rectangle
|
|
void DoDrawTextInRect(wxDC& dc, const wxRect& rectUpdate);
|
|
|
|
// draw the line wrap marks in this rect
|
|
void DoDrawLineWrapMarks(wxDC& dc, const wxRect& rectUpdate);
|
|
|
|
// line/row geometry calculations
|
|
// ------------------------------
|
|
|
|
// get the extent (width) of the text
|
|
wxCoord GetTextWidth(const wxString& text) const;
|
|
|
|
// get the logical text width (accounting for scrolling)
|
|
wxCoord GetTotalWidth() const;
|
|
|
|
// get total number of rows (different from number of lines if the lines
|
|
// can be wrapped)
|
|
wxTextCoord GetRowCount() const;
|
|
|
|
// find the number of rows in this line (only if WrapLines())
|
|
wxTextCoord GetRowsPerLine(wxTextCoord line) const;
|
|
|
|
// get the starting row of the given line
|
|
wxTextCoord GetFirstRowOfLine(wxTextCoord line) const;
|
|
|
|
// get the row following this line
|
|
wxTextCoord GetRowAfterLine(wxTextCoord line) const;
|
|
|
|
// refresh functions
|
|
// -----------------
|
|
|
|
// 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(const wxRect& rect, bool textOnly = true);
|
|
|
|
// refresh the line wrap marks for the given range of lines (inclusive)
|
|
void RefreshLineWrapMarks(wxTextCoord rowFirst, wxTextCoord rowLast);
|
|
|
|
// 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(wxTextCoord line, wxCoord start, wxCoord width);
|
|
|
|
// refresh the text in the given range (in text coords) in this line
|
|
void RefreshColRange(wxTextCoord line, wxTextPos start, size_t count);
|
|
|
|
// refresh the text from in the given line range (inclusive)
|
|
void RefreshLineRange(wxTextCoord lineFirst, wxTextCoord lineLast);
|
|
|
|
// refresh the text in the given range which can span multiple lines
|
|
// (this method accepts arguments in any order)
|
|
void RefreshTextRange(wxTextPos start, wxTextPos 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;
|
|
|
|
// find the row in this line where the given position (counted from the
|
|
// start of line) is
|
|
wxTextCoord GetRowInLine(wxTextCoord line,
|
|
wxTextCoord col,
|
|
wxTextCoord *colRowStart = NULL) const;
|
|
|
|
// find the number of characters of a line before it wraps
|
|
// (and optionally also the real width of the line)
|
|
size_t GetPartOfWrappedLine(const wxChar* text,
|
|
wxCoord *widthReal = NULL) 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(wxTextCoord line,
|
|
wxTextPos *start, wxTextPos *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(wxTextPos pos);
|
|
|
|
// move caret to the new position without updating the display (for
|
|
// internal use only)
|
|
void MoveInsertionPoint(wxTextPos 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();
|
|
|
|
// update the max width after the given line was modified
|
|
void UpdateMaxWidth(wxTextCoord line);
|
|
|
|
// hit testing
|
|
// -----------
|
|
|
|
// HitTest2() is more efficient than 2 consecutive HitTest()s with the same
|
|
// line (i.e. y) and it also returns the offset of the starting position in
|
|
// pixels
|
|
//
|
|
// as the last hack, this function accepts either logical or device (by
|
|
// default) coords depending on devCoords flag
|
|
wxTextCtrlHitTestResult HitTest2(wxCoord y,
|
|
wxCoord x1,
|
|
wxCoord x2,
|
|
wxTextCoord *row,
|
|
wxTextCoord *colStart,
|
|
wxTextCoord *colEnd,
|
|
wxTextCoord *colRowStart,
|
|
bool devCoords = true) const;
|
|
|
|
// HitTest() version which takes the logical text coordinates and not the
|
|
// device ones
|
|
wxTextCtrlHitTestResult HitTestLogical(const wxPoint& pos,
|
|
wxTextCoord *col,
|
|
wxTextCoord *row) const;
|
|
|
|
// get the line and the row in this line corresponding to the given row,
|
|
// return true if ok and false if row is out of range
|
|
//
|
|
// NB: this function can only be called for controls which wrap lines
|
|
bool GetLineAndRow(wxTextCoord row,
|
|
wxTextCoord *line,
|
|
wxTextCoord *rowInLine) const;
|
|
|
|
// get the height of one line (the same for all lines)
|
|
wxCoord GetLineHeight() const
|
|
{
|
|
// this one should be already precalculated
|
|
wxASSERT_MSG( m_heightLine != -1, wxT("should have line height") );
|
|
|
|
return m_heightLine;
|
|
}
|
|
|
|
// get the average char width
|
|
wxCoord GetAverageWidth() const { return m_widthAvg; }
|
|
|
|
// recalc the line height and char width (to call when the font changes)
|
|
void RecalcFontMetrics();
|
|
|
|
// vertical scrolling helpers
|
|
// --------------------------
|
|
|
|
// all these functions are for multi line controls only
|
|
|
|
// get the number of visible lines
|
|
size_t GetLinesPerPage() const;
|
|
|
|
// return the position above the cursor or INVALID_POS_VALUE
|
|
wxTextPos GetPositionAbove();
|
|
|
|
// return the position below the cursor or INVALID_POS_VALUE
|
|
wxTextPos GetPositionBelow();
|
|
|
|
// event handlers
|
|
// --------------
|
|
void OnChar(wxKeyEvent& event);
|
|
void OnSize(wxSizeEvent& event);
|
|
|
|
// return the struct containing control-type dependent data
|
|
struct wxTextSingleLineData& SData() { return *m_data.sdata; }
|
|
struct wxTextMultiLineData& MData() { return *m_data.mdata; }
|
|
struct wxTextWrappedData& WData() { return *m_data.wdata; }
|
|
const wxTextSingleLineData& SData() const { return *m_data.sdata; }
|
|
const wxTextMultiLineData& MData() const { return *m_data.mdata; }
|
|
const wxTextWrappedData& WData() const { return *m_data.wdata; }
|
|
|
|
// clipboard operations (unlike the versions without Do prefix, they have a
|
|
// return code)
|
|
bool DoCut();
|
|
bool DoPaste();
|
|
|
|
private:
|
|
// all these methods are for multiline text controls only
|
|
|
|
// update the scrollbars (only called from OnIdle)
|
|
void UpdateScrollbars();
|
|
|
|
// get read only access to the lines of multiline control
|
|
inline const wxArrayString& GetLines() const;
|
|
inline size_t GetLineCount() const;
|
|
|
|
// replace a line (returns true if the number of rows in thel ine changed)
|
|
bool ReplaceLine(wxTextCoord line, const wxString& text);
|
|
|
|
// remove a line
|
|
void RemoveLine(wxTextCoord line);
|
|
|
|
// insert a line at this position
|
|
void InsertLine(wxTextCoord line, const wxString& text);
|
|
|
|
// calculate geometry of this line
|
|
void LayoutLine(wxTextCoord line, class wxWrappedLineData& lineData) const;
|
|
|
|
// calculate geometry of all lines until the given one
|
|
void LayoutLines(wxTextCoord lineLast) const;
|
|
|
|
// the initially specified control size
|
|
wxSize m_sizeInitial;
|
|
|
|
// the global control text
|
|
wxString m_value;
|
|
|
|
// current position
|
|
wxTextPos m_curPos;
|
|
wxTextCoord m_curCol,
|
|
m_curRow;
|
|
|
|
// last position (only used by GetLastPosition())
|
|
wxTextPos m_posLast;
|
|
|
|
// selection
|
|
wxTextPos m_selAnchor,
|
|
m_selStart,
|
|
m_selEnd;
|
|
|
|
// flags
|
|
bool m_isModified:1,
|
|
m_isEditable:1,
|
|
m_hasCaret:1,
|
|
m_wrapLines:1; // can't be changed after creation
|
|
|
|
// the rectangle (in client coordinates) to draw text inside
|
|
wxRect m_rectText;
|
|
|
|
// the height of one line (cached value of GetCharHeight)
|
|
wxCoord m_heightLine;
|
|
|
|
// and the average char width (cached value of GetCharWidth)
|
|
wxCoord m_widthAvg;
|
|
|
|
// we have some data which depends on the kind of control (single or multi
|
|
// line)
|
|
union
|
|
{
|
|
wxTextSingleLineData *sdata;
|
|
wxTextMultiLineData *mdata;
|
|
wxTextWrappedData *wdata;
|
|
void *data;
|
|
} m_data;
|
|
|
|
// the object to which we delegate our undo/redo implementation
|
|
wxTextCtrlCommandProcessor *m_cmdProcessor;
|
|
|
|
DECLARE_EVENT_TABLE()
|
|
DECLARE_DYNAMIC_CLASS(wxTextCtrl)
|
|
|
|
friend class wxWrappedLineData;
|
|
};
|
|
|
|
#endif // _WX_UNIV_TEXTCTRL_H_
|
|
|