X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/2049ba38adafa0ec146880de29f26e32dd69a125..448f8f12b9db091bafd27ed8a13829dd850d7bb7:/include/wx/textctrl.h diff --git a/include/wx/textctrl.h b/include/wx/textctrl.h index 40508446ac..fd6ad89317 100644 --- a/include/wx/textctrl.h +++ b/include/wx/textctrl.h @@ -1,13 +1,601 @@ -#ifndef __TEXTCTRLH_BASE__ -#define __TEXTCTRLH_BASE__ +/////////////////////////////////////////////////////////////////////////////// +// Name: wx/textctrl.h +// Purpose: wxTextCtrlBase class - the interface of wxTextCtrl +// Author: Vadim Zeitlin +// Modified by: +// Created: 13.07.99 +// RCS-ID: $Id$ +// Copyright: (c) Vadim Zeitlin +// Licence: wxWindows licence +/////////////////////////////////////////////////////////////////////////////// -#if defined(__WXMSW__) -#include "wx/msw/textctrl.h" +#ifndef _WX_TEXTCTRL_H_BASE_ +#define _WX_TEXTCTRL_H_BASE_ + +// ---------------------------------------------------------------------------- +// headers +// ---------------------------------------------------------------------------- + +#include "wx/defs.h" + +#if wxUSE_TEXTCTRL + +#include "wx/control.h" // the base class +#include "wx/dynarray.h" // wxArrayInt +#include "wx/gdicmn.h" // wxPoint + +// Open Watcom 1.3 does allow only ios::rdbuf() while +// we want something with streambuf parameter +// Also, can't use streambuf if making or using a DLL :-( + +#if defined(__WATCOMC__) || \ + defined(__MWERKS__) || \ + (defined(__WINDOWS__) && (defined(WXUSINGDLL) || defined(WXMAKINGDLL))) + #define wxHAS_TEXT_WINDOW_STREAM 0 +#elif wxUSE_STD_IOSTREAM + #include "wx/ioswrap.h" + #define wxHAS_TEXT_WINDOW_STREAM 1 +#else + #define wxHAS_TEXT_WINDOW_STREAM 0 +#endif + +#if WXWIN_COMPATIBILITY_2_4 && !wxHAS_TEXT_WINDOW_STREAM + // define old flag if one could use it somewhere + #define NO_TEXT_WINDOW_STREAM +#endif + +class WXDLLEXPORT wxTextCtrl; +class WXDLLEXPORT wxTextCtrlBase; + +// ---------------------------------------------------------------------------- +// wxTextCtrl types +// ---------------------------------------------------------------------------- + +// wxTextPos is the position in the text +typedef long wxTextPos; + +// wxTextCoord is the line or row number (which should have been unsigned but +// is long for backwards compatibility) +typedef long wxTextCoord; + +// ---------------------------------------------------------------------------- +// constants +// ---------------------------------------------------------------------------- + +extern WXDLLEXPORT_DATA(const wxChar) wxTextCtrlNameStr[]; + +// this is intentionally not enum to avoid warning fixes with +// typecasting from enum type to wxTextCoord +const wxTextCoord wxOutOfRangeTextCoord = -1; +const wxTextCoord wxInvalidTextCoord = -2; + +// ---------------------------------------------------------------------------- +// wxTextCtrl style flags +// ---------------------------------------------------------------------------- + +#define wxTE_NO_VSCROLL 0x0002 +#define wxTE_AUTO_SCROLL 0x0008 + +#define wxTE_READONLY 0x0010 +#define wxTE_MULTILINE 0x0020 +#define wxTE_PROCESS_TAB 0x0040 + +// alignment flags +#define wxTE_LEFT 0x0000 // 0x0000 +#define wxTE_CENTER wxALIGN_CENTER_HORIZONTAL // 0x0100 +#define wxTE_RIGHT wxALIGN_RIGHT // 0x0200 +#define wxTE_CENTRE wxTE_CENTER + +// this style means to use RICHEDIT control and does something only under wxMSW +// and Win32 and is silently ignored under all other platforms +#define wxTE_RICH 0x0080 + +#define wxTE_PROCESS_ENTER 0x0400 +#define wxTE_PASSWORD 0x0800 + +// automatically detect the URLs and generate the events when mouse is +// moved/clicked over an URL +// +// this is for Win32 richedit and wxGTK2 multiline controls only so far +#define wxTE_AUTO_URL 0x1000 + +// by default, the Windows text control doesn't show the selection when it +// doesn't have focus - use this style to force it to always show it +#define wxTE_NOHIDESEL 0x2000 + +// use wxHSCROLL to not wrap text at all, wxTE_CHARWRAP to wrap it at any +// position and wxTE_WORDWRAP to wrap at words boundary +// +// if no wrapping style is given at all, the control wraps at word boundary +#define wxTE_DONTWRAP wxHSCROLL +#define wxTE_CHARWRAP 0x4000 // wrap at any position +#define wxTE_WORDWRAP 0x0001 // wrap only at words boundaries +#define wxTE_BESTWRAP 0x0000 // this is the default + +#if WXWIN_COMPATIBILITY_2_6 + // obsolete synonym + #define wxTE_LINEWRAP wxTE_CHARWRAP +#endif // WXWIN_COMPATIBILITY_2_6 + +// force using RichEdit version 2.0 or 3.0 instead of 1.0 (default) for +// wxTE_RICH controls - can be used together with or instead of wxTE_RICH +#define wxTE_RICH2 0x8000 + +// reuse wxTE_RICH2's value for CAPEDIT control on Windows CE +#if defined(__SMARTPHONE__) || defined(__POCKETPC__) +#define wxTE_CAPITALIZE wxTE_RICH2 +#else +#define wxTE_CAPITALIZE 0 +#endif + +// ---------------------------------------------------------------------------- +// wxTextCtrl file types +// ---------------------------------------------------------------------------- + +#define wxTEXT_TYPE_ANY 0 + +// ---------------------------------------------------------------------------- +// wxTextCtrl::HitTest return values +// ---------------------------------------------------------------------------- + +// the point asked is ... +enum wxTextCtrlHitTestResult +{ + wxTE_HT_UNKNOWN = -2, // this means HitTest() is simply not implemented + wxTE_HT_BEFORE, // either to the left or upper + wxTE_HT_ON_TEXT, // directly on + wxTE_HT_BELOW, // below [the last line] + wxTE_HT_BEYOND // after [the end of line] +}; +// ... the character returned + +// ---------------------------------------------------------------------------- +// Types for wxTextAttr +// ---------------------------------------------------------------------------- + +// Alignment + +enum wxTextAttrAlignment +{ + wxTEXT_ALIGNMENT_DEFAULT, + wxTEXT_ALIGNMENT_LEFT, + wxTEXT_ALIGNMENT_CENTRE, + wxTEXT_ALIGNMENT_CENTER = wxTEXT_ALIGNMENT_CENTRE, + wxTEXT_ALIGNMENT_RIGHT, + wxTEXT_ALIGNMENT_JUSTIFIED +}; + +// Flags to indicate which attributes are being applied + +#define wxTEXT_ATTR_TEXT_COLOUR 0x0001 +#define wxTEXT_ATTR_BACKGROUND_COLOUR 0x0002 +#define wxTEXT_ATTR_FONT_FACE 0x0004 +#define wxTEXT_ATTR_FONT_SIZE 0x0008 +#define wxTEXT_ATTR_FONT_WEIGHT 0x0010 +#define wxTEXT_ATTR_FONT_ITALIC 0x0020 +#define wxTEXT_ATTR_FONT_UNDERLINE 0x0040 +#define wxTEXT_ATTR_FONT \ + ( wxTEXT_ATTR_FONT_FACE | wxTEXT_ATTR_FONT_SIZE | wxTEXT_ATTR_FONT_WEIGHT | \ + wxTEXT_ATTR_FONT_ITALIC | wxTEXT_ATTR_FONT_UNDERLINE ) +#define wxTEXT_ATTR_ALIGNMENT 0x0080 +#define wxTEXT_ATTR_LEFT_INDENT 0x0100 +#define wxTEXT_ATTR_RIGHT_INDENT 0x0200 +#define wxTEXT_ATTR_TABS 0x0400 + +// ---------------------------------------------------------------------------- +// wxTextAttr: a structure containing the visual attributes of a text +// ---------------------------------------------------------------------------- + +class WXDLLEXPORT wxTextAttr +{ +public: + // ctors + wxTextAttr() { Init(); } + wxTextAttr(const wxColour& colText, + const wxColour& colBack = wxNullColour, + const wxFont& font = wxNullFont, + wxTextAttrAlignment alignment = wxTEXT_ALIGNMENT_DEFAULT); + + // operations + void Init(); + + // merges the attributes of the base and the overlay objects and returns + // the result; the parameter attributes take precedence + // + // WARNING: the order of arguments is the opposite of Combine() + static wxTextAttr Merge(const wxTextAttr& base, const wxTextAttr& overlay) + { + return Combine(overlay, base, NULL); + } + + // merges the attributes of this object and overlay + void Merge(const wxTextAttr& overlay) + { + *this = Merge(*this, overlay); + } + + + // operators + void operator= (const wxTextAttr& attr); + + // setters + void SetTextColour(const wxColour& colText) { m_colText = colText; m_flags |= wxTEXT_ATTR_TEXT_COLOUR; } + void SetBackgroundColour(const wxColour& colBack) { m_colBack = colBack; m_flags |= wxTEXT_ATTR_BACKGROUND_COLOUR; } + void SetFont(const wxFont& font, long flags = wxTEXT_ATTR_FONT) { m_font = font; m_flags |= flags; } + void SetAlignment(wxTextAttrAlignment alignment) { m_textAlignment = alignment; m_flags |= wxTEXT_ATTR_ALIGNMENT; } + void SetTabs(const wxArrayInt& tabs) { m_tabs = tabs; m_flags |= wxTEXT_ATTR_TABS; } + void SetLeftIndent(int indent, int subIndent = 0) { m_leftIndent = indent; m_leftSubIndent = subIndent; m_flags |= wxTEXT_ATTR_LEFT_INDENT; } + void SetRightIndent(int indent) { m_rightIndent = indent; m_flags |= wxTEXT_ATTR_RIGHT_INDENT; } + void SetFlags(long flags) { m_flags = flags; } + + // accessors + bool HasTextColour() const { return m_colText.Ok() && HasFlag(wxTEXT_ATTR_TEXT_COLOUR) ; } + bool HasBackgroundColour() const { return m_colBack.Ok() && HasFlag(wxTEXT_ATTR_BACKGROUND_COLOUR) ; } + bool HasFont() const { return m_font.Ok() && HasFlag(wxTEXT_ATTR_FONT) ; } + bool HasAlignment() const { return (m_textAlignment != wxTEXT_ALIGNMENT_DEFAULT) || ((m_flags & wxTEXT_ATTR_ALIGNMENT) != 0) ; } + bool HasTabs() const { return (m_flags & wxTEXT_ATTR_TABS) != 0 ; } + bool HasLeftIndent() const { return (m_flags & wxTEXT_ATTR_LEFT_INDENT) != 0 ; } + bool HasRightIndent() const { return (m_flags & wxTEXT_ATTR_RIGHT_INDENT) != 0 ; } + bool HasFlag(long flag) const { return (m_flags & flag) != 0; } + + const wxColour& GetTextColour() const { return m_colText; } + const wxColour& GetBackgroundColour() const { return m_colBack; } + const wxFont& GetFont() const { return m_font; } + wxTextAttrAlignment GetAlignment() const { return m_textAlignment; } + const wxArrayInt& GetTabs() const { return m_tabs; } + long GetLeftIndent() const { return m_leftIndent; } + long GetLeftSubIndent() const { return m_leftSubIndent; } + long GetRightIndent() const { return m_rightIndent; } + long GetFlags() const { return m_flags; } + + // returns false if we have any attributes set, true otherwise + bool IsDefault() const + { + return !HasTextColour() && !HasBackgroundColour() && !HasFont() && !HasAlignment() && + !HasTabs() && !HasLeftIndent() && !HasRightIndent() ; + } + + // return the attribute having the valid font and colours: it uses the + // attributes set in attr and falls back first to attrDefault and then to + // the text control font/colours for those attributes which are not set + static wxTextAttr Combine(const wxTextAttr& attr, + const wxTextAttr& attrDef, + const wxTextCtrlBase *text); + +private: + long m_flags; + wxColour m_colText, + m_colBack; + wxFont m_font; + wxTextAttrAlignment m_textAlignment; + wxArrayInt m_tabs; // array of int: tab stops in 1/10 mm + int m_leftIndent; // left indent in 1/10 mm + int m_leftSubIndent; // left indent for all but the first + // line in a paragraph relative to the + // first line, in 1/10 mm + int m_rightIndent; // right indent in 1/10 mm +}; + +// ---------------------------------------------------------------------------- +// wxTextCtrl: a single or multiple line text zone where user can enter and +// edit text +// ---------------------------------------------------------------------------- + +class WXDLLEXPORT wxTextCtrlBase : public wxControl +#if wxHAS_TEXT_WINDOW_STREAM + , public wxSTD streambuf +#endif + +{ +public: + // creation + // -------- + + wxTextCtrlBase(){} + virtual ~wxTextCtrlBase(){} + + // accessors + // --------- + + virtual wxString GetValue() const = 0; + virtual bool IsEmpty() const { return GetValue().empty(); } + + virtual void SetValue(const wxString& value) + { DoSetValue(value, SetValue_SendEvent); } + virtual void ChangeValue(const wxString& value) + { DoSetValue(value); } + + virtual wxString GetRange(long from, long to) const; + + virtual int GetLineLength(long lineNo) const = 0; + virtual wxString GetLineText(long lineNo) const = 0; + virtual int GetNumberOfLines() const = 0; + + virtual bool IsModified() const = 0; + virtual bool IsEditable() const = 0; + + // more readable flag testing methods + bool IsSingleLine() const { return !HasFlag(wxTE_MULTILINE); } + bool IsMultiLine() const { return !IsSingleLine(); } + + // If the return values from and to are the same, there is no selection. + virtual void GetSelection(long* from, long* to) const = 0; + + virtual wxString GetStringSelection() const; + + // operations + // ---------- + + // editing + virtual void Clear() = 0; + virtual void Replace(long from, long to, const wxString& value) = 0; + virtual void Remove(long from, long to) = 0; + + // load/save the control's contents from/to a file + bool LoadFile(const wxString& file, int fileType = wxTEXT_TYPE_ANY) { return DoLoadFile(file, fileType); } + bool SaveFile(const wxString& file = wxEmptyString, int fileType = wxTEXT_TYPE_ANY); + + // implementation for loading/saving + virtual bool DoLoadFile(const wxString& file, int fileType); + virtual bool DoSaveFile(const wxString& file, int fileType); + + // sets/clears the dirty flag + virtual void MarkDirty() = 0; + virtual void DiscardEdits() = 0; + void SetModified(bool modified) + { + if ( modified ) + MarkDirty(); + else + DiscardEdits(); + } + + // set the max number of characters which may be entered in a single line + // text control + virtual void SetMaxLength(unsigned long WXUNUSED(len)) { } + + // writing text inserts it at the current position, appending always + // inserts it at the end + virtual void WriteText(const wxString& text) = 0; + virtual void AppendText(const wxString& text) = 0; + + // insert the character which would have resulted from this key event, + // return true if anything has been inserted + virtual bool EmulateKeyPress(const wxKeyEvent& event); + + // text control under some platforms supports the text styles: these + // methods allow to apply the given text style to the given selection or to + // set/get the style which will be used for all appended text + virtual bool SetStyle(long start, long end, const wxTextAttr& style); + virtual bool GetStyle(long position, wxTextAttr& style); + virtual bool SetDefaultStyle(const wxTextAttr& style); + virtual const wxTextAttr& GetDefaultStyle() const; + + // 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 = 0; + virtual bool PositionToXY(long pos, long *x, long *y) const = 0; + + virtual void ShowPosition(long pos) = 0; + + // find the character at position given in pixels + // + // NB: pt is in device coords (not adjusted for the client area origin nor + // scrolling) + virtual wxTextCtrlHitTestResult HitTest(const wxPoint& pt, long *pos) const; + virtual wxTextCtrlHitTestResult HitTest(const wxPoint& pt, + wxTextCoord *col, + wxTextCoord *row) const; + + // Clipboard operations + virtual void Copy() = 0; + virtual void Cut() = 0; + virtual void Paste() = 0; + + virtual bool CanCopy() const; + virtual bool CanCut() const; + virtual bool CanPaste() const; + + // Undo/redo + virtual void Undo() = 0; + virtual void Redo() = 0; + + virtual bool CanUndo() const = 0; + virtual bool CanRedo() const = 0; + + // Insertion point + virtual void SetInsertionPoint(long pos) = 0; + virtual void SetInsertionPointEnd() = 0; + virtual long GetInsertionPoint() const = 0; + virtual wxTextPos GetLastPosition() const = 0; + + virtual void SetSelection(long from, long to) = 0; + virtual void SelectAll(); + virtual void SetEditable(bool editable) = 0; + + // stream-like insertion operators: these are always available, whether we + // were, or not, compiled with streambuf support + wxTextCtrl& operator<<(const wxString& s); + wxTextCtrl& operator<<(int i); + wxTextCtrl& operator<<(long i); + wxTextCtrl& operator<<(float f); + wxTextCtrl& operator<<(double d); + wxTextCtrl& operator<<(const wxChar c); + + // generate the wxEVT_COMMAND_TEXT_UPDATED event, like SetValue() does + void SendTextUpdatedEvent(); + + // do the window-specific processing after processing the update event + virtual void DoUpdateWindowUI(wxUpdateUIEvent& event); + + virtual bool ShouldInheritColours() const { return false; } + +protected: + // override streambuf method +#if wxHAS_TEXT_WINDOW_STREAM + int overflow(int i); +#endif // wxHAS_TEXT_WINDOW_STREAM + + // flags for DoSetValue(): common part of SetValue() and ChangeValue() and + // also used to implement WriteText() in wxMSW + enum + { + SetValue_SendEvent = 1, + SetValue_SelectionOnly = 2 + }; + + virtual void DoSetValue(const wxString& value, int flags = 0) = 0; + + + // the name of the last file loaded with LoadFile() which will be used by + // SaveFile() by default + wxString m_filename; + + // the text style which will be used for any new text added to the control + wxTextAttr m_defaultStyle; + + DECLARE_NO_COPY_CLASS(wxTextCtrlBase) + DECLARE_ABSTRACT_CLASS(wxTextCtrlBase) +}; + +// ---------------------------------------------------------------------------- +// include the platform-dependent class definition +// ---------------------------------------------------------------------------- + +#if defined(__WXX11__) + #include "wx/x11/textctrl.h" +#elif defined(__WXUNIVERSAL__) + #include "wx/univ/textctrl.h" +#elif defined(__SMARTPHONE__) && defined(__WXWINCE__) + #include "wx/msw/wince/textctrlce.h" +#elif defined(__WXMSW__) + #include "wx/msw/textctrl.h" #elif defined(__WXMOTIF__) -#include "wx/xt/textctrl.h" + #include "wx/motif/textctrl.h" +#elif defined(__WXGTK20__) + #include "wx/gtk/textctrl.h" #elif defined(__WXGTK__) -#include "wx/gtk/textctrl.h" + #include "wx/gtk1/textctrl.h" +#elif defined(__WXMAC__) + #include "wx/mac/textctrl.h" +#elif defined(__WXCOCOA__) + #include "wx/cocoa/textctrl.h" +#elif defined(__WXPM__) + #include "wx/os2/textctrl.h" #endif +// ---------------------------------------------------------------------------- +// wxTextCtrl events +// ---------------------------------------------------------------------------- + +#if !WXWIN_COMPATIBILITY_EVENT_TYPES + +BEGIN_DECLARE_EVENT_TYPES() + DECLARE_EVENT_TYPE(wxEVT_COMMAND_TEXT_UPDATED, 7) + DECLARE_EVENT_TYPE(wxEVT_COMMAND_TEXT_ENTER, 8) + DECLARE_EVENT_TYPE(wxEVT_COMMAND_TEXT_URL, 13) + 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 - // __TEXTCTRLH_BASE__ + // _WX_TEXTCTRL_H_BASE_