a5aa80862c
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@13475 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
387 lines
13 KiB
C++
387 lines
13 KiB
C++
///////////////////////////////////////////////////////////////////////////////
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// Name: 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: $Id$
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// Copyright: (c) wxWindows team
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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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#ifdef __GNUG__
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#pragma interface "textctrlbase.h"
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#endif
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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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// 16-bit Borland 4.0 doesn't seem to allow multiple inheritance with wxWindow
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// and streambuf: it complains about deriving a huge class from the huge class
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// streambuf. !! Also, can't use streambuf if making or using a DLL :-(
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#if (defined(__BORLANDC__)) || defined(__MWERKS__) || \
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defined(WXUSINGDLL) || defined(WXMAKINGDLL)
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#define NO_TEXT_WINDOW_STREAM
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#endif
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#ifndef NO_TEXT_WINDOW_STREAM
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#if wxUSE_STD_IOSTREAM
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#include "wx/ioswrap.h" // for iostream classes if we need them
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#else // !wxUSE_STD_IOSTREAM
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// can't compile this feature in if we don't use streams at all
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#define NO_TEXT_WINDOW_STREAM
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#endif // wxUSE_STD_IOSTREAM/!wxUSE_STD_IOSTREAM
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#endif
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class WXDLLEXPORT wxTextCtrl;
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class WXDLLEXPORT wxTextCtrlBase;
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// ----------------------------------------------------------------------------
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// constants
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// ----------------------------------------------------------------------------
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WXDLLEXPORT_DATA(extern const wxChar*) wxTextCtrlNameStr;
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WXDLLEXPORT_DATA(extern const wxChar*) wxEmptyString;
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// ----------------------------------------------------------------------------
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// wxTextCtrl style flags
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// ----------------------------------------------------------------------------
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// the flag bits 0x0001, 2, 4 and 8 are free but should be used only for the
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// things which don't make sense for a text control used by wxTextEntryDialog
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// because they would otherwise conflict with wxOK, wxCANCEL, wxCENTRE
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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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// 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_NO_VSCROLL 0x0100
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#define wxTE_AUTO_SCROLL 0x0200
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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 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_LINEWRAP to wrap it at any
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// position and wxTE_WORDWRAP to wrap at words boundary
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#define wxTE_DONTWRAP wxHSCROLL
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#define wxTE_LINEWRAP 0x4000
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#define wxTE_WORDWRAP 0x0000 // it's just == !wxHSCROLL
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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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// ----------------------------------------------------------------------------
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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() { }
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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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: m_colText(colText), m_colBack(colBack), m_font(font) { }
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// setters
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void SetTextColour(const wxColour& colText) { m_colText = colText; }
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void SetBackgroundColour(const wxColour& colBack) { m_colBack = colBack; }
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void SetFont(const wxFont& font) { m_font = font; }
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// accessors
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bool HasTextColour() const { return m_colText.Ok(); }
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bool HasBackgroundColour() const { return m_colBack.Ok(); }
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bool HasFont() const { return m_font.Ok(); }
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// setters
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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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// 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();
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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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wxColour m_colText,
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m_colBack;
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wxFont m_font;
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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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#ifndef NO_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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~wxTextCtrlBase();
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// accessors
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// ---------
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virtual wxString GetValue() const = 0;
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virtual void SetValue(const wxString& value) = 0;
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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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// 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 controls contents from/to the file
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virtual bool LoadFile(const wxString& file);
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virtual bool SaveFile(const wxString& file = wxEmptyString);
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// clears the dirty flag
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virtual void DiscardEdits() = 0;
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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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// 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 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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// 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 long 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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// override streambuf method
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#ifndef NO_TEXT_WINDOW_STREAM
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int overflow(int i);
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#endif // NO_TEXT_WINDOW_STREAM
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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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// obsolete functions
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#if WXWIN_COMPATIBILITY
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bool Modified() const { return IsModified(); }
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#endif
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protected:
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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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};
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// ----------------------------------------------------------------------------
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// include the platform-dependent class definition
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// ----------------------------------------------------------------------------
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#if defined(__WXUNIVERSAL__)
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#include "wx/univ/textctrl.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(__WXGTK__)
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#include "wx/gtk/textctrl.h"
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#elif defined(__WXMAC__)
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#include "wx/mac/textctrl.h"
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#elif defined(__WXPM__)
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#include "wx/os2/textctrl.h"
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#elif defined(__WXSTUBS__)
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#include "wx/stubs/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)
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DECLARE_EVENT_TYPE(wxEVT_COMMAND_TEXT_URL, 13)
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DECLARE_EVENT_TYPE(wxEVT_COMMAND_TEXT_MAXLEN, 14)
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END_DECLARE_EVENT_TYPES()
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#endif // !WXWIN_COMPATIBILITY_EVENT_TYPES
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class WXDLLEXPORT wxTextUrlEvent : public wxCommandEvent
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{
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public:
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wxTextUrlEvent(int id, const wxMouseEvent& evtMouse,
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long start, long end)
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: wxCommandEvent(wxEVT_COMMAND_TEXT_URL, id),
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m_evtMouse(evtMouse)
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{ m_start = start; m_end = end; }
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// get the mouse event which happend over the URL
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const wxMouseEvent& GetMouseEvent() const { return m_evtMouse; }
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// get the start of the URL
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long GetURLStart() const { return m_start; }
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// get the end of the URL
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long GetURLEnd() const { return m_end; }
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protected:
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// the corresponding mouse event
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wxMouseEvent m_evtMouse;
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// the start and end indices of the URL in the text control
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long m_start,
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m_end;
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private:
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DECLARE_DYNAMIC_CLASS(wxTextUrlEvent)
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public:
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// for wxWin RTTI only, don't use
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wxTextUrlEvent() { }
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};
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typedef void (wxEvtHandler::*wxTextUrlEventFunction)(wxTextUrlEvent&);
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#define EVT_TEXT(id, fn) DECLARE_EVENT_TABLE_ENTRY( wxEVT_COMMAND_TEXT_UPDATED, id, -1, (wxObjectEventFunction) (wxEventFunction) (wxCommandEventFunction) & fn, (wxObject *) NULL ),
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#define EVT_TEXT_ENTER(id, fn) DECLARE_EVENT_TABLE_ENTRY( wxEVT_COMMAND_TEXT_ENTER, id, -1, (wxObjectEventFunction) (wxEventFunction) (wxCommandEventFunction) & fn, (wxObject *) NULL ),
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#define EVT_TEXT_URL(id, fn) DECLARE_EVENT_TABLE_ENTRY( wxEVT_COMMAND_TEXT_URL, id, -1, (wxObjectEventFunction) (wxEventFunction) (wxCommandEventFunction) (wxTextUrlEventFunction) & fn, (wxObject *) NULL ),
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#define EVT_TEXT_MAXLEN(id, fn) DECLARE_EVENT_TABLE_ENTRY( wxEVT_COMMAND_TEXT_MAXLEN, id, -1, (wxObjectEventFunction) (wxEventFunction) (wxCommandEventFunction) & fn, (wxObject *) NULL ),
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#ifndef NO_TEXT_WINDOW_STREAM
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// ----------------------------------------------------------------------------
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// wxStreamToTextRedirector: this class redirects all data sent to the given
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// C++ stream to the wxTextCtrl given to its ctor during its lifetime.
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// ----------------------------------------------------------------------------
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class WXDLLEXPORT wxStreamToTextRedirector
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{
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public:
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wxStreamToTextRedirector(wxTextCtrl *text, wxSTD ostream *ostr = NULL)
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: m_ostr(ostr ? *ostr : wxSTD cout)
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{
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m_sbufOld = m_ostr.rdbuf();
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m_ostr.rdbuf(text);
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}
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~wxStreamToTextRedirector()
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{
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m_ostr.rdbuf(m_sbufOld);
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}
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private:
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// the stream we're redirecting
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wxSTD ostream& m_ostr;
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// the old streambuf (before we changed it)
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wxSTD streambuf *m_sbufOld;
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};
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#endif // !NO_TEXT_WINDOW_STREAM
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#endif // wxUSE_TEXTCTRL
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#endif
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// _WX_TEXTCTRL_H_BASE_
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