wxWidgets/include/wx/palmos/textctrl.h
2005-09-23 12:56:45 +00:00

246 lines
8.1 KiB
C++

/////////////////////////////////////////////////////////////////////////////
// Name: wx/palmos/textctrl.h
// Purpose: wxTextCtrl class
// Author: William Osborne - minimal working wxPalmOS port
// Modified by:
// Created: 10/13/04
// RCS-ID: $Id$
// Copyright: (c) William Osborne
// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
#ifndef _WX_TEXTCTRL_H_
#define _WX_TEXTCTRL_H_
class WXDLLEXPORT wxTextCtrl : public wxTextCtrlBase
{
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);
}
~wxTextCtrl();
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);
// 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;
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);
// load the controls contents from the file
virtual bool LoadFile(const wxString& file);
// clears the dirty flag
virtual void MarkDirty();
virtual void DiscardEdits();
virtual void SetMaxLength(unsigned long len);
// 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);
#if wxUSE_RICHEDIT
// apply text attribute to the range of text (only works with richedit
// controls)
virtual bool SetStyle(long start, long end, const wxTextAttr& style);
virtual bool SetDefaultStyle(const wxTextAttr& style);
virtual bool GetStyle(long position, wxTextAttr& style);
#endif // wxUSE_RICHEDIT
// 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);
virtual wxTextCtrlHitTestResult HitTest(const wxPoint& pt,
wxTextCoord *col,
wxTextCoord *row) const;
// Clipboard operations
virtual void Copy();
virtual void Cut();
virtual void Paste();
virtual bool CanCopy() const;
virtual bool CanCut() const;
virtual bool CanPaste() const;
// 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 wxTextPos GetLastPosition() const;
virtual void SetSelection(long from, long to);
virtual void SetEditable(bool editable);
// Caret handling (Windows only)
bool ShowNativeCaret(bool show = true);
bool HideNativeCaret() { return ShowNativeCaret(false); }
// Implementation from now on
// --------------------------
virtual void Command(wxCommandEvent& event);
virtual bool MSWCommand(WXUINT param, WXWORD id);
#if wxUSE_RICHEDIT
virtual bool MSWOnNotify(int idCtrl, WXLPARAM lParam, WXLPARAM *result);
int GetRichVersion() const { return m_verRichEdit; }
bool IsRich() const { return m_verRichEdit != 0; }
// rich edit controls are not compatible with normal ones and wem ust set
// the colours for them otherwise
virtual bool SetBackgroundColour(const wxColour& colour);
virtual bool SetForegroundColour(const wxColour& colour);
#endif // wxUSE_RICHEDIT
virtual bool AcceptsFocus() const;
// callbacks
void OnDropFiles(wxDropFilesEvent& event);
void OnChar(wxKeyEvent& event); // Process 'enter' if required
void OnCut(wxCommandEvent& event);
void OnCopy(wxCommandEvent& event);
void OnPaste(wxCommandEvent& event);
void OnUndo(wxCommandEvent& event);
void OnRedo(wxCommandEvent& event);
void OnDelete(wxCommandEvent& event);
void OnSelectAll(wxCommandEvent& event);
void OnUpdateCut(wxUpdateUIEvent& event);
void OnUpdateCopy(wxUpdateUIEvent& event);
void OnUpdatePaste(wxUpdateUIEvent& event);
void OnUpdateUndo(wxUpdateUIEvent& event);
void OnUpdateRedo(wxUpdateUIEvent& event);
void OnUpdateDelete(wxUpdateUIEvent& event);
void OnUpdateSelectAll(wxUpdateUIEvent& event);
// Show a context menu for Rich Edit controls (the standard
// EDIT control has one already)
void OnRightClick(wxMouseEvent& event);
// be sure the caret remains invisible if the user
// called HideNativeCaret() before
void OnSetFocus(wxFocusEvent& event);
protected:
// common part of all ctors
void Init();
// intercept WM_GETDLGCODE
virtual WXLRESULT MSWWindowProc(WXUINT nMsg, WXWPARAM wParam, WXLPARAM lParam);
// call this to increase the size limit (will do nothing if the current
// limit is big enough)
//
// returns true if we increased the limit to allow entering more text,
// false if we hit the limit set by SetMaxLength() and so didn't change it
bool AdjustSpaceLimit();
#if wxUSE_RICHEDIT && (!wxUSE_UNICODE || wxUSE_UNICODE_MSLU)
// replace the selection or the entire control contents with the given text
// in the specified encoding
bool StreamIn(const wxString& value, wxFontEncoding encoding, bool selOnly);
// get the contents of the control out as text in the given encoding
wxString StreamOut(wxFontEncoding encoding, bool selOnly = false) const;
#endif // wxUSE_RICHEDIT
// replace the contents of the selection or of the entire control with the
// given text
void DoWriteText(const wxString& text, bool selectionOnly = true);
// set the selection possibly without scrolling the caret into view
void DoSetSelection(long from, long to, bool scrollCaret = true);
// return true if there is a non empty selection in the control
bool HasSelection() const;
// get the length of the line containing the character at the given
// position
long GetLengthOfLineContainingPos(long pos) const;
// send TEXT_UPDATED event, return true if it was handled, false otherwise
bool SendUpdateEvent();
// override some base class virtuals
virtual bool MSWShouldPreProcessMessage(WXMSG* pMsg);
virtual wxSize DoGetBestSize() const;
virtual WXDWORD MSWGetStyle(long style, WXDWORD *exstyle) const;
#if wxUSE_RICHEDIT
// we're using RICHEDIT (and not simple EDIT) control if this field is not
// 0, it also gives the version of the RICHEDIT control being used (1, 2 or
// 3 so far)
int m_verRichEdit;
#endif // wxUSE_RICHEDIT
// if true, SendUpdateEvent() will eat the next event (see comments in the
// code as to why this is needed)
bool m_suppressNextUpdate;
private:
DECLARE_EVENT_TABLE()
DECLARE_DYNAMIC_CLASS_NO_COPY(wxTextCtrl)
wxMenu* m_privateContextMenu;
bool m_isNativeCaretShown;
};
#endif
// _WX_TEXTCTRL_H_