602 lines
21 KiB
C++
602 lines
21 KiB
C++
///////////////////////////////////////////////////////////////////////////////
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// Name: wx/textctrl.h
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// Purpose: wxTextCtrlBase class - the interface of wxTextCtrl
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// Author: Vadim Zeitlin
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// Modified by:
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// Created: 13.07.99
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// RCS-ID: $Id: textctrl.h 53135 2008-04-12 02:31:04Z VZ $
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// Copyright: (c) Vadim Zeitlin
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// Licence: wxWindows licence
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///////////////////////////////////////////////////////////////////////////////
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#ifndef _WX_TEXTCTRL_H_BASE_
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#define _WX_TEXTCTRL_H_BASE_
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// ----------------------------------------------------------------------------
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// headers
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// ----------------------------------------------------------------------------
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#include "wx/defs.h"
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#if wxUSE_TEXTCTRL
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#include "wx/control.h" // the base class
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#include "wx/dynarray.h" // wxArrayInt
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#include "wx/gdicmn.h" // wxPoint
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// Open Watcom 1.3 does allow only ios::rdbuf() while
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// we want something with streambuf parameter
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// Also, can't use streambuf if making or using a DLL :-(
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#if defined(__WATCOMC__) || \
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defined(__MWERKS__) || \
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(defined(__WINDOWS__) && (defined(WXUSINGDLL) || defined(WXMAKINGDLL)))
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#define wxHAS_TEXT_WINDOW_STREAM 0
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#elif wxUSE_STD_IOSTREAM
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#include "wx/ioswrap.h"
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#define wxHAS_TEXT_WINDOW_STREAM 1
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#else
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#define wxHAS_TEXT_WINDOW_STREAM 0
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#endif
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#if WXWIN_COMPATIBILITY_2_4 && !wxHAS_TEXT_WINDOW_STREAM
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// define old flag if one could use it somewhere
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#define NO_TEXT_WINDOW_STREAM
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#endif
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class WXDLLIMPEXP_FWD_CORE wxTextCtrl;
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class WXDLLIMPEXP_FWD_CORE wxTextCtrlBase;
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// ----------------------------------------------------------------------------
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// wxTextCtrl types
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// ----------------------------------------------------------------------------
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// wxTextPos is the position in the text
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typedef long wxTextPos;
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// wxTextCoord is the line or row number (which should have been unsigned but
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// is long for backwards compatibility)
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typedef long wxTextCoord;
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// ----------------------------------------------------------------------------
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// constants
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// ----------------------------------------------------------------------------
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extern WXDLLEXPORT_DATA(const wxChar) wxTextCtrlNameStr[];
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// this is intentionally not enum to avoid warning fixes with
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// typecasting from enum type to wxTextCoord
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const wxTextCoord wxOutOfRangeTextCoord = -1;
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const wxTextCoord wxInvalidTextCoord = -2;
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// ----------------------------------------------------------------------------
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// wxTextCtrl style flags
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// ----------------------------------------------------------------------------
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#define wxTE_NO_VSCROLL 0x0002
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#define wxTE_AUTO_SCROLL 0x0008
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#define wxTE_READONLY 0x0010
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#define wxTE_MULTILINE 0x0020
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#define wxTE_PROCESS_TAB 0x0040
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// alignment flags
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#define wxTE_LEFT 0x0000 // 0x0000
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#define wxTE_CENTER wxALIGN_CENTER_HORIZONTAL // 0x0100
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#define wxTE_RIGHT wxALIGN_RIGHT // 0x0200
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#define wxTE_CENTRE wxTE_CENTER
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// this style means to use RICHEDIT control and does something only under wxMSW
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// and Win32 and is silently ignored under all other platforms
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#define wxTE_RICH 0x0080
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#define wxTE_PROCESS_ENTER 0x0400
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#define wxTE_PASSWORD 0x0800
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// automatically detect the URLs and generate the events when mouse is
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// moved/clicked over an URL
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//
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// this is for Win32 richedit and wxGTK2 multiline controls only so far
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#define wxTE_AUTO_URL 0x1000
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// by default, the Windows text control doesn't show the selection when it
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// doesn't have focus - use this style to force it to always show it
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#define wxTE_NOHIDESEL 0x2000
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// use wxHSCROLL to not wrap text at all, wxTE_CHARWRAP to wrap it at any
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// position and wxTE_WORDWRAP to wrap at words boundary
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//
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// if no wrapping style is given at all, the control wraps at word boundary
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#define wxTE_DONTWRAP wxHSCROLL
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#define wxTE_CHARWRAP 0x4000 // wrap at any position
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#define wxTE_WORDWRAP 0x0001 // wrap only at words boundaries
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#define wxTE_BESTWRAP 0x0000 // this is the default
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#if WXWIN_COMPATIBILITY_2_6
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// obsolete synonym
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#define wxTE_LINEWRAP wxTE_CHARWRAP
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#endif // WXWIN_COMPATIBILITY_2_6
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// force using RichEdit version 2.0 or 3.0 instead of 1.0 (default) for
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// wxTE_RICH controls - can be used together with or instead of wxTE_RICH
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#define wxTE_RICH2 0x8000
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// reuse wxTE_RICH2's value for CAPEDIT control on Windows CE
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#if defined(__SMARTPHONE__) || defined(__POCKETPC__)
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#define wxTE_CAPITALIZE wxTE_RICH2
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#else
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#define wxTE_CAPITALIZE 0
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#endif
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// ----------------------------------------------------------------------------
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// wxTextCtrl file types
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// ----------------------------------------------------------------------------
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#define wxTEXT_TYPE_ANY 0
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// ----------------------------------------------------------------------------
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// wxTextCtrl::HitTest return values
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// ----------------------------------------------------------------------------
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// the point asked is ...
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enum wxTextCtrlHitTestResult
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{
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wxTE_HT_UNKNOWN = -2, // this means HitTest() is simply not implemented
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wxTE_HT_BEFORE, // either to the left or upper
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wxTE_HT_ON_TEXT, // directly on
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wxTE_HT_BELOW, // below [the last line]
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wxTE_HT_BEYOND // after [the end of line]
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};
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// ... the character returned
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// ----------------------------------------------------------------------------
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// Types for wxTextAttr
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// ----------------------------------------------------------------------------
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// Alignment
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enum wxTextAttrAlignment
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{
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wxTEXT_ALIGNMENT_DEFAULT,
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wxTEXT_ALIGNMENT_LEFT,
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wxTEXT_ALIGNMENT_CENTRE,
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wxTEXT_ALIGNMENT_CENTER = wxTEXT_ALIGNMENT_CENTRE,
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wxTEXT_ALIGNMENT_RIGHT,
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wxTEXT_ALIGNMENT_JUSTIFIED
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};
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// Flags to indicate which attributes are being applied
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#define wxTEXT_ATTR_TEXT_COLOUR 0x0001
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#define wxTEXT_ATTR_BACKGROUND_COLOUR 0x0002
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#define wxTEXT_ATTR_FONT_FACE 0x0004
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#define wxTEXT_ATTR_FONT_SIZE 0x0008
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#define wxTEXT_ATTR_FONT_WEIGHT 0x0010
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#define wxTEXT_ATTR_FONT_ITALIC 0x0020
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#define wxTEXT_ATTR_FONT_UNDERLINE 0x0040
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#define wxTEXT_ATTR_FONT \
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( wxTEXT_ATTR_FONT_FACE | wxTEXT_ATTR_FONT_SIZE | wxTEXT_ATTR_FONT_WEIGHT | \
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wxTEXT_ATTR_FONT_ITALIC | wxTEXT_ATTR_FONT_UNDERLINE )
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#define wxTEXT_ATTR_ALIGNMENT 0x0080
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#define wxTEXT_ATTR_LEFT_INDENT 0x0100
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#define wxTEXT_ATTR_RIGHT_INDENT 0x0200
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#define wxTEXT_ATTR_TABS 0x0400
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// ----------------------------------------------------------------------------
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// wxTextAttr: a structure containing the visual attributes of a text
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// ----------------------------------------------------------------------------
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class WXDLLEXPORT wxTextAttr
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{
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public:
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// ctors
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wxTextAttr() { Init(); }
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wxTextAttr(const wxColour& colText,
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const wxColour& colBack = wxNullColour,
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const wxFont& font = wxNullFont,
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wxTextAttrAlignment alignment = wxTEXT_ALIGNMENT_DEFAULT);
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// operations
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void Init();
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// merges the attributes of the base and the overlay objects and returns
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// the result; the parameter attributes take precedence
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//
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// WARNING: the order of arguments is the opposite of Combine()
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static wxTextAttr Merge(const wxTextAttr& base, const wxTextAttr& overlay)
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{
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return Combine(overlay, base, NULL);
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}
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// merges the attributes of this object and overlay
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void Merge(const wxTextAttr& overlay)
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{
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*this = Merge(*this, overlay);
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}
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// operators
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void operator= (const wxTextAttr& attr);
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// setters
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void SetTextColour(const wxColour& colText) { m_colText = colText; m_flags |= wxTEXT_ATTR_TEXT_COLOUR; }
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void SetBackgroundColour(const wxColour& colBack) { m_colBack = colBack; m_flags |= wxTEXT_ATTR_BACKGROUND_COLOUR; }
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void SetFont(const wxFont& font, long flags = wxTEXT_ATTR_FONT) { m_font = font; m_flags |= flags; }
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void SetAlignment(wxTextAttrAlignment alignment) { m_textAlignment = alignment; m_flags |= wxTEXT_ATTR_ALIGNMENT; }
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void SetTabs(const wxArrayInt& tabs) { m_tabs = tabs; m_flags |= wxTEXT_ATTR_TABS; }
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void SetLeftIndent(int indent, int subIndent = 0) { m_leftIndent = indent; m_leftSubIndent = subIndent; m_flags |= wxTEXT_ATTR_LEFT_INDENT; }
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void SetRightIndent(int indent) { m_rightIndent = indent; m_flags |= wxTEXT_ATTR_RIGHT_INDENT; }
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void SetFlags(long flags) { m_flags = flags; }
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// accessors
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bool HasTextColour() const { return m_colText.Ok() && HasFlag(wxTEXT_ATTR_TEXT_COLOUR) ; }
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bool HasBackgroundColour() const { return m_colBack.Ok() && HasFlag(wxTEXT_ATTR_BACKGROUND_COLOUR) ; }
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bool HasFont() const { return m_font.Ok() && HasFlag(wxTEXT_ATTR_FONT) ; }
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bool HasAlignment() const { return (m_textAlignment != wxTEXT_ALIGNMENT_DEFAULT) && ((m_flags & wxTEXT_ATTR_ALIGNMENT) != 0) ; }
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bool HasTabs() const { return (m_flags & wxTEXT_ATTR_TABS) != 0 ; }
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bool HasLeftIndent() const { return (m_flags & wxTEXT_ATTR_LEFT_INDENT) != 0 ; }
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bool HasRightIndent() const { return (m_flags & wxTEXT_ATTR_RIGHT_INDENT) != 0 ; }
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bool HasFlag(long flag) const { return (m_flags & flag) != 0; }
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const wxColour& GetTextColour() const { return m_colText; }
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const wxColour& GetBackgroundColour() const { return m_colBack; }
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const wxFont& GetFont() const { return m_font; }
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wxTextAttrAlignment GetAlignment() const { return m_textAlignment; }
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const wxArrayInt& GetTabs() const { return m_tabs; }
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long GetLeftIndent() const { return m_leftIndent; }
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long GetLeftSubIndent() const { return m_leftSubIndent; }
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long GetRightIndent() const { return m_rightIndent; }
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long GetFlags() const { return m_flags; }
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// returns false if we have any attributes set, true otherwise
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bool IsDefault() const
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{
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return !HasTextColour() && !HasBackgroundColour() && !HasFont() && !HasAlignment() &&
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!HasTabs() && !HasLeftIndent() && !HasRightIndent() ;
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}
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// return the attribute having the valid font and colours: it uses the
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// attributes set in attr and falls back first to attrDefault and then to
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// the text control font/colours for those attributes which are not set
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static wxTextAttr Combine(const wxTextAttr& attr,
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const wxTextAttr& attrDef,
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const wxTextCtrlBase *text);
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private:
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long m_flags;
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wxColour m_colText,
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m_colBack;
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wxFont m_font;
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wxTextAttrAlignment m_textAlignment;
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wxArrayInt m_tabs; // array of int: tab stops in 1/10 mm
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int m_leftIndent; // left indent in 1/10 mm
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int m_leftSubIndent; // left indent for all but the first
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// line in a paragraph relative to the
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// first line, in 1/10 mm
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int m_rightIndent; // right indent in 1/10 mm
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};
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// ----------------------------------------------------------------------------
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// wxTextCtrl: a single or multiple line text zone where user can enter and
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// edit text
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// ----------------------------------------------------------------------------
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class WXDLLEXPORT wxTextCtrlBase : public wxControl
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#if wxHAS_TEXT_WINDOW_STREAM
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, public wxSTD streambuf
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#endif
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{
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public:
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// creation
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// --------
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wxTextCtrlBase(){}
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virtual ~wxTextCtrlBase(){}
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// accessors
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// ---------
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virtual wxString GetValue() const = 0;
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virtual bool IsEmpty() const { return GetValue().empty(); }
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virtual void SetValue(const wxString& value)
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{ DoSetValue(value, SetValue_SendEvent); }
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virtual void ChangeValue(const wxString& value)
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{ DoSetValue(value); }
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virtual wxString GetRange(long from, long to) const;
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virtual int GetLineLength(long lineNo) const = 0;
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virtual wxString GetLineText(long lineNo) const = 0;
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virtual int GetNumberOfLines() const = 0;
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virtual bool IsModified() const = 0;
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virtual bool IsEditable() const = 0;
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// more readable flag testing methods
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bool IsSingleLine() const { return !HasFlag(wxTE_MULTILINE); }
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bool IsMultiLine() const { return !IsSingleLine(); }
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// If the return values from and to are the same, there is no selection.
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virtual void GetSelection(long* from, long* to) const = 0;
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virtual wxString GetStringSelection() const;
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// operations
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// ----------
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// editing
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virtual void Clear() = 0;
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virtual void Replace(long from, long to, const wxString& value) = 0;
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virtual void Remove(long from, long to) = 0;
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// load/save the control's contents from/to a file
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bool LoadFile(const wxString& file, int fileType = wxTEXT_TYPE_ANY) { return DoLoadFile(file, fileType); }
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bool SaveFile(const wxString& file = wxEmptyString, int fileType = wxTEXT_TYPE_ANY);
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// implementation for loading/saving
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virtual bool DoLoadFile(const wxString& file, int fileType);
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virtual bool DoSaveFile(const wxString& file, int fileType);
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// sets/clears the dirty flag
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virtual void MarkDirty() = 0;
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virtual void DiscardEdits() = 0;
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void SetModified(bool modified)
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{
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if ( modified )
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MarkDirty();
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else
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DiscardEdits();
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}
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// set the max number of characters which may be entered in a single line
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// text control
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virtual void SetMaxLength(unsigned long WXUNUSED(len)) { }
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// writing text inserts it at the current position, appending always
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// inserts it at the end
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virtual void WriteText(const wxString& text) = 0;
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virtual void AppendText(const wxString& text) = 0;
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// insert the character which would have resulted from this key event,
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// return true if anything has been inserted
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virtual bool EmulateKeyPress(const wxKeyEvent& event);
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// text control under some platforms supports the text styles: these
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// methods allow to apply the given text style to the given selection or to
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// set/get the style which will be used for all appended text
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virtual bool SetStyle(long start, long end, const wxTextAttr& style);
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virtual bool GetStyle(long position, wxTextAttr& style);
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virtual bool SetDefaultStyle(const wxTextAttr& style);
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virtual const wxTextAttr& GetDefaultStyle() const;
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// translate between the position (which is just an index in the text ctrl
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// considering all its contents as a single strings) and (x, y) coordinates
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// which represent column and line.
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virtual long XYToPosition(long x, long y) const = 0;
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virtual bool PositionToXY(long pos, long *x, long *y) const = 0;
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virtual void ShowPosition(long pos) = 0;
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// find the character at position given in pixels
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//
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// NB: pt is in device coords (not adjusted for the client area origin nor
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// scrolling)
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virtual wxTextCtrlHitTestResult HitTest(const wxPoint& pt, long *pos) const;
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virtual wxTextCtrlHitTestResult HitTest(const wxPoint& pt,
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wxTextCoord *col,
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wxTextCoord *row) const;
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// Clipboard operations
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virtual void Copy() = 0;
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virtual void Cut() = 0;
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virtual void Paste() = 0;
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virtual bool CanCopy() const;
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virtual bool CanCut() const;
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virtual bool CanPaste() const;
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// Undo/redo
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virtual void Undo() = 0;
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virtual void Redo() = 0;
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virtual bool CanUndo() const = 0;
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virtual bool CanRedo() const = 0;
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// Insertion point
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virtual void SetInsertionPoint(long pos) = 0;
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virtual void SetInsertionPointEnd() = 0;
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virtual long GetInsertionPoint() const = 0;
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virtual wxTextPos GetLastPosition() const = 0;
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virtual void SetSelection(long from, long to) = 0;
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virtual void SelectAll();
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virtual void SetEditable(bool editable) = 0;
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// stream-like insertion operators: these are always available, whether we
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// were, or not, compiled with streambuf support
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wxTextCtrl& operator<<(const wxString& s);
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wxTextCtrl& operator<<(int i);
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wxTextCtrl& operator<<(long i);
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wxTextCtrl& operator<<(float f);
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wxTextCtrl& operator<<(double d);
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wxTextCtrl& operator<<(const wxChar c);
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// generate the wxEVT_COMMAND_TEXT_UPDATED event, like SetValue() does
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void SendTextUpdatedEvent();
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// do the window-specific processing after processing the update event
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virtual void DoUpdateWindowUI(wxUpdateUIEvent& event);
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virtual bool ShouldInheritColours() const { return false; }
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protected:
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// override streambuf method
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#if wxHAS_TEXT_WINDOW_STREAM
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int overflow(int i);
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#endif // wxHAS_TEXT_WINDOW_STREAM
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// flags for DoSetValue(): common part of SetValue() and ChangeValue() and
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// also used to implement WriteText() in wxMSW
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enum
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{
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SetValue_SendEvent = 1,
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SetValue_SelectionOnly = 2
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};
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virtual void DoSetValue(const wxString& value, int flags = 0) = 0;
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// the name of the last file loaded with LoadFile() which will be used by
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// SaveFile() by default
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wxString m_filename;
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// the text style which will be used for any new text added to the control
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wxTextAttr m_defaultStyle;
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DECLARE_NO_COPY_CLASS(wxTextCtrlBase)
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DECLARE_ABSTRACT_CLASS(wxTextCtrlBase)
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};
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// ----------------------------------------------------------------------------
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// include the platform-dependent class definition
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// ----------------------------------------------------------------------------
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#if defined(__WXX11__)
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#include "wx/x11/textctrl.h"
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#elif defined(__WXUNIVERSAL__)
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#include "wx/univ/textctrl.h"
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#elif defined(__SMARTPHONE__) && defined(__WXWINCE__)
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#include "wx/msw/wince/textctrlce.h"
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#elif defined(__WXMSW__)
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#include "wx/msw/textctrl.h"
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#elif defined(__WXMOTIF__)
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#include "wx/motif/textctrl.h"
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#elif defined(__WXGTK20__)
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#include "wx/gtk/textctrl.h"
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#elif defined(__WXGTK__)
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#include "wx/gtk1/textctrl.h"
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#elif defined(__WXMAC__)
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#include "wx/mac/textctrl.h"
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#elif defined(__WXCOCOA__)
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#include "wx/cocoa/textctrl.h"
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#elif defined(__WXPM__)
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#include "wx/os2/textctrl.h"
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#endif
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// ----------------------------------------------------------------------------
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// wxTextCtrl events
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// ----------------------------------------------------------------------------
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#if !WXWIN_COMPATIBILITY_EVENT_TYPES
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BEGIN_DECLARE_EVENT_TYPES()
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|
DECLARE_EVENT_TYPE(wxEVT_COMMAND_TEXT_UPDATED, 7)
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|
DECLARE_EVENT_TYPE(wxEVT_COMMAND_TEXT_ENTER, 8)
|
|
DECLARE_EVENT_TYPE(wxEVT_COMMAND_TEXT_URL, 13)
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|
DECLARE_EVENT_TYPE(wxEVT_COMMAND_TEXT_MAXLEN, 14)
|
|
END_DECLARE_EVENT_TYPES()
|
|
|
|
#endif // !WXWIN_COMPATIBILITY_EVENT_TYPES
|
|
|
|
class WXDLLEXPORT wxTextUrlEvent : public wxCommandEvent
|
|
{
|
|
public:
|
|
wxTextUrlEvent(int winid, const wxMouseEvent& evtMouse,
|
|
long start, long end)
|
|
: wxCommandEvent(wxEVT_COMMAND_TEXT_URL, winid)
|
|
, m_evtMouse(evtMouse), m_start(start), m_end(end)
|
|
{ }
|
|
|
|
// get the mouse event which happend over the URL
|
|
const wxMouseEvent& GetMouseEvent() const { return m_evtMouse; }
|
|
|
|
// get the start of the URL
|
|
long GetURLStart() const { return m_start; }
|
|
|
|
// get the end of the URL
|
|
long GetURLEnd() const { return m_end; }
|
|
|
|
protected:
|
|
// the corresponding mouse event
|
|
wxMouseEvent m_evtMouse;
|
|
|
|
// the start and end indices of the URL in the text control
|
|
long m_start,
|
|
m_end;
|
|
|
|
private:
|
|
DECLARE_DYNAMIC_CLASS_NO_COPY(wxTextUrlEvent)
|
|
|
|
public:
|
|
// for wxWin RTTI only, don't use
|
|
wxTextUrlEvent() : m_evtMouse(), m_start(0), m_end(0) { }
|
|
};
|
|
|
|
typedef void (wxEvtHandler::*wxTextUrlEventFunction)(wxTextUrlEvent&);
|
|
|
|
#define wxTextEventHandler(func) wxCommandEventHandler(func)
|
|
#define wxTextUrlEventHandler(func) \
|
|
(wxObjectEventFunction)(wxEventFunction)wxStaticCastEvent(wxTextUrlEventFunction, &func)
|
|
|
|
#define wx__DECLARE_TEXTEVT(evt, id, fn) \
|
|
wx__DECLARE_EVT1(wxEVT_COMMAND_TEXT_ ## evt, id, wxTextEventHandler(fn))
|
|
|
|
#define wx__DECLARE_TEXTURLEVT(evt, id, fn) \
|
|
wx__DECLARE_EVT1(wxEVT_COMMAND_TEXT_ ## evt, id, wxTextUrlEventHandler(fn))
|
|
|
|
#define EVT_TEXT(id, fn) wx__DECLARE_TEXTEVT(UPDATED, id, fn)
|
|
#define EVT_TEXT_ENTER(id, fn) wx__DECLARE_TEXTEVT(ENTER, id, fn)
|
|
#define EVT_TEXT_URL(id, fn) wx__DECLARE_TEXTURLEVT(URL, id, fn)
|
|
#define EVT_TEXT_MAXLEN(id, fn) wx__DECLARE_TEXTEVT(MAXLEN, id, fn)
|
|
|
|
#if wxHAS_TEXT_WINDOW_STREAM
|
|
|
|
// ----------------------------------------------------------------------------
|
|
// wxStreamToTextRedirector: this class redirects all data sent to the given
|
|
// C++ stream to the wxTextCtrl given to its ctor during its lifetime.
|
|
// ----------------------------------------------------------------------------
|
|
|
|
class WXDLLEXPORT wxStreamToTextRedirector
|
|
{
|
|
private:
|
|
void Init(wxTextCtrl *text)
|
|
{
|
|
m_sbufOld = m_ostr.rdbuf();
|
|
m_ostr.rdbuf(text);
|
|
}
|
|
|
|
public:
|
|
wxStreamToTextRedirector(wxTextCtrl *text)
|
|
: m_ostr(wxSTD cout)
|
|
{
|
|
Init(text);
|
|
}
|
|
|
|
wxStreamToTextRedirector(wxTextCtrl *text, wxSTD ostream *ostr)
|
|
: m_ostr(*ostr)
|
|
{
|
|
Init(text);
|
|
}
|
|
|
|
~wxStreamToTextRedirector()
|
|
{
|
|
m_ostr.rdbuf(m_sbufOld);
|
|
}
|
|
|
|
private:
|
|
// the stream we're redirecting
|
|
wxSTD ostream& m_ostr;
|
|
|
|
// the old streambuf (before we changed it)
|
|
wxSTD streambuf *m_sbufOld;
|
|
};
|
|
|
|
#endif // wxHAS_TEXT_WINDOW_STREAM
|
|
|
|
#endif // wxUSE_TEXTCTRL
|
|
|
|
#endif
|
|
// _WX_TEXTCTRL_H_BASE_
|