// Created: 17/09/98
// RCS-ID: $Id$
// Copyright: (c) Julian Smart
-// Licence: wxWindows licence
+// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
#ifndef _WX_TEXTCTRL_H_
#define _WX_TEXTCTRL_H_
#ifdef __GNUG__
-#pragma interface "textctrl.h"
+ #pragma interface "textctrl.h"
#endif
+#include "wx/ioswrap.h"
#include "wx/control.h"
-#if wxUSE_IOSTREAMH
-#include <iostream.h>
-#else
-#include <iostream>
+// TODO Some platforms/compilers don't like inheritance from streambuf.
+#if (defined(__BORLANDC__) && !defined(__WIN32__)) || defined(__MWERKS__)
+ #define NO_TEXT_WINDOW_STREAM
#endif
WXDLLEXPORT_DATA(extern const char*) wxTextCtrlNameStr;
// Single-line text item
class WXDLLEXPORT wxTextCtrl: public wxControl
-
-// TODO Some platforms/compilers don't like inheritance from streambuf.
-
-#if (defined(__BORLANDC__) && !defined(__WIN32__)) || defined(__MWERKS__)
-#define NO_TEXT_WINDOW_STREAM
-#endif
-
#ifndef NO_TEXT_WINDOW_STREAM
-, public streambuf
+ , public streambuf
#endif
-
{
- DECLARE_DYNAMIC_CLASS(wxTextCtrl)
-
+ DECLARE_DYNAMIC_CLASS(wxTextCtrl)
+
public:
- // creation
- // --------
- wxTextCtrl();
- inline 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)
+ // creation
+ // --------
+ wxTextCtrl();
+ 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)
#ifndef NO_TEXT_WINDOW_STREAM
- :streambuf()
+ : streambuf()
#endif
- {
- Create(parent, id, value, pos, size, style, validator, name);
- }
-
- bool Create(wxWindow *parent, wxWindowID id,
- const wxString& value = wxEmptyString,
- const wxPoint& pos = wxDefaultPosition,
- const wxSize& size = wxDefaultSize, long style = 0,
- const wxValidator& validator = wxDefaultValidator,
- const wxString& name = wxTextCtrlNameStr);
-
- // accessors
- // ---------
- 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;
-
- // operations
- // ----------
-
- // Clipboard operations
- virtual void Copy();
- virtual void Cut();
- virtual void Paste();
-
- virtual void SetInsertionPoint(long pos);
- virtual void SetInsertionPointEnd();
- virtual long GetInsertionPoint() const ;
- virtual long GetLastPosition() const ;
- virtual void Replace(long from, long to, const wxString& value);
- virtual void Remove(long from, long to);
- virtual void SetSelection(long from, long to);
- virtual void SetEditable(bool editable);
-
- // streambuf implementation
+ {
+ Create(parent, id, value, pos, size, style, validator, name);
+ }
+
+ bool Create(wxWindow *parent, wxWindowID id,
+ const wxString& value = wxEmptyString,
+ const wxPoint& pos = wxDefaultPosition,
+ const wxSize& size = wxDefaultSize, long style = 0,
+ const wxValidator& validator = wxDefaultValidator,
+ const wxString& name = wxTextCtrlNameStr);
+
+ // accessors
+ // ---------
+ 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;
+
+ // operations
+ // ----------
+
+ // Clipboard operations
+ virtual void Copy();
+ virtual void Cut();
+ virtual void Paste();
+
+ virtual void SetInsertionPoint(long pos);
+ virtual void SetInsertionPointEnd();
+ virtual long GetInsertionPoint() const;
+ virtual long GetLastPosition() const;
+ virtual void Replace(long from, long to, const wxString& value);
+ virtual void Remove(long from, long to);
+ virtual void SetSelection(long from, long to);
+ virtual void SetEditable(bool editable);
+
+ // streambuf implementation
#ifndef NO_TEXT_WINDOW_STREAM
- int overflow(int i);
- int sync();
- int underflow();
+ int overflow(int i);
+ int sync();
+ int underflow();
#endif
-
- wxTextCtrl& operator<<(const wxString& s);
- wxTextCtrl& operator<<(int i);
- wxTextCtrl& operator<<(long i);
- wxTextCtrl& operator<<(float f);
- wxTextCtrl& operator<<(double d);
- wxTextCtrl& operator<<(const char c);
-
- virtual bool LoadFile(const wxString& file);
- virtual bool SaveFile(const wxString& file);
- virtual void WriteText(const wxString& text);
- virtual void AppendText(const wxString& text);
- virtual void DiscardEdits();
- virtual bool IsModified() const;
-
- virtual long XYToPosition(long x, long y) const ;
- virtual void PositionToXY(long pos, long *x, long *y) const ;
- virtual void ShowPosition(long pos);
- virtual void Clear();
-
- // callbacks
- // ---------
- void OnDropFiles(wxDropFilesEvent& event);
- void OnChar(wxKeyEvent& event);
-// void OnEraseBackground(wxEraseEvent& event);
-
- virtual void Command(wxCommandEvent& event);
-
-// Implementation
- virtual void ChangeFont(bool keepOriginalSize = TRUE);
- virtual void ChangeBackgroundColour();
- virtual void ChangeForegroundColour();
- inline void SetModified(bool mod) { m_modified = mod; }
- virtual WXWidget GetTopWidget() const;
+
+ wxTextCtrl& operator<<(const wxString& s);
+ wxTextCtrl& operator<<(int i);
+ wxTextCtrl& operator<<(long i);
+ wxTextCtrl& operator<<(float f);
+ wxTextCtrl& operator<<(double d);
+ wxTextCtrl& operator<<(const char c);
+
+ virtual bool LoadFile(const wxString& file);
+ virtual bool SaveFile(const wxString& file);
+ virtual void WriteText(const wxString& text);
+ virtual void AppendText(const wxString& text);
+ virtual void DiscardEdits();
+ virtual bool IsModified() const;
+
+ virtual long XYToPosition(long x, long y) const;
+ virtual void PositionToXY(long pos, long *x, long *y) const;
+ virtual void ShowPosition(long pos);
+ virtual void Clear();
+
+ // callbacks
+ // ---------
+ void OnDropFiles(wxDropFilesEvent& event);
+ void OnChar(wxKeyEvent& event);
+ // void OnEraseBackground(wxEraseEvent& event);
+
+ virtual void Command(wxCommandEvent& event);
+
+ // implementation from here to the end
+ // -----------------------------------
+ virtual void ChangeFont(bool keepOriginalSize = TRUE);
+ virtual void ChangeBackgroundColour();
+ virtual void ChangeForegroundColour();
+ void SetModified(bool mod) { m_modified = mod; }
+ virtual WXWidget GetTopWidget() const;
+
+ // send the CHAR and TEXT_UPDATED events
+ void DoSendEvents(void /* XmTextVerifyCallbackStruct */ *cbs,
+ long keycode);
protected:
- wxString m_fileName;
+ wxString m_fileName;
+
public:
- // Motif-specific
- void* m_tempCallbackStruct;
- bool m_modified;
- wxString m_value; // Required for password text controls
- bool m_processedDefault; // Did we call wxTextCtrl::OnChar?
- // If so, generate a command event.
- DECLARE_EVENT_TABLE()
+ // Motif-specific
+ void* m_tempCallbackStruct;
+ bool m_modified;
+ wxString m_value; // Required for password text controls
+
+ // Did we call wxTextCtrl::OnChar? If so, generate a command event.
+ bool m_processedDefault;
+
+private:
+ DECLARE_EVENT_TABLE()
};
#endif
// private functions
// ----------------------------------------------------------------------------
+// helper: inserts the new text in the value of the text ctrl and returns the
+// result in place
+static void MergeChangesIntoString(wxString& value,
+ XmTextVerifyCallbackStruct *textStruct);
+
// callbacks
static void wxTextWindowChangedProc(Widget w, XtPointer clientData, XtPointer ptr);
static void wxTextWindowModifyProc(Widget w, XtPointer clientData, XmTextVerifyCallbackStruct *cbs);
wxString wxTextCtrl::GetValue() const
{
+ wxString str; // result
+
if (m_windowStyle & wxTE_PASSWORD)
- return m_value;
+ {
+ // the value is stored always in m_value because it can't be retrieved
+ // from the text control
+ str = m_value;
+ }
else
{
+ // just get the string from Motif
char *s = XmTextGetString ((Widget) m_mainWidget);
- if (s)
+ if ( s )
{
- wxString str(s);
+ str = s;
XtFree (s);
- return str;
}
- else
+ //else: return empty string
+
+ if ( m_tempCallbackStruct )
{
- return wxEmptyString;
+ // the string in the control isn't yet updated, can't use it as is
+ MergeChangesIntoString(str, (XmTextVerifyCallbackStruct *)
+ m_tempCallbackStruct);
}
}
+
+ return str;
}
void wxTextCtrl::SetValue(const wxString& value)
}
}
-static void wxTextWindowChangedProc (Widget w, XtPointer clientData, XtPointer ptr)
+void wxTextCtrl::DoSendEvents(void *wxcbs, long keycode)
+{
+ // we're in process of updating the text control
+ m_tempCallbackStruct = wxcbs;
+
+ XmTextVerifyCallbackStruct *cbs = (XmTextVerifyCallbackStruct *)wxcbs;
+
+ wxKeyEvent event (wxEVT_CHAR);
+ event.SetId(GetId());
+ event.m_keyCode = keycode;
+ event.SetEventObject(this);
+
+ // Only if wxTextCtrl::OnChar is called will this be set to True (and
+ // the character passed through)
+ cbs->doit = False;
+
+ GetEventHandler()->ProcessEvent(event);
+
+ if ( !InSetValue() && m_processedDefault )
+ {
+ // Can generate a command
+ wxCommandEvent commandEvent(wxEVT_COMMAND_TEXT_UPDATED, GetId());
+ commandEvent.SetEventObject(this);
+ ProcessCommand(commandEvent);
+ }
+
+ // do it after the (user) event handlers processed the events because
+ // otherwise GetValue() would return incorrect (not yet updated value)
+ m_tempCallbackStruct = NULL;
+}
+
+// ----------------------------------------------------------------------------
+// helpers and Motif callbacks
+// ----------------------------------------------------------------------------
+
+static void MergeChangesIntoString(wxString& value,
+ XmTextVerifyCallbackStruct *cbs)
+{
+ /* _sm_
+ * At least on my system (SunOS 4.1.3 + Motif 1.2), you need to think of
+ * every event as a replace event. cbs->text->ptr gives the replacement
+ * text, cbs->startPos gives the index of the first char affected by the
+ * replace, and cbs->endPos gives the index one more than the last char
+ * affected by the replace (startPos == endPos implies an empty range).
+ * Hence, a deletion is represented by replacing all input text with a
+ * blank string ("", *not* NULL!). A simple insertion that does not
+ * overwrite any text has startPos == endPos.
+ */
+
+ if ( !value )
+ {
+ // easy case: the ol value was empty
+ value = cbs->text->ptr;
+ }
+ else
+ {
+ // merge the changes into the value
+ const char * const passwd = value;
+ int len = value.length();
+
+ len += strlen(cbs->text->ptr) + 1; // + new text (if any) + NUL
+ len -= cbs->endPos - cbs->startPos; // - text from affected region.
+
+ char * newS = new char [len];
+ char * dest = newS,
+ * insert = cbs->text->ptr;
+
+ // Copy (old) text from passwd, up to the start posn of the change.
+ int i;
+ const char * p = passwd;
+ for (i = 0; i < cbs->startPos; ++i)
+ *dest++ = *p++;
+
+ // Copy the text to be inserted).
+ while (*insert)
+ *dest++ = *insert++;
+
+ // Finally, copy into newS any remaining text from passwd[endPos] on.
+ for (p = passwd + cbs->endPos; *p; )
+ *dest++ = *p++;
+ *dest = 0;
+
+ value = newS;
+
+ delete[] newS;
+ }
+}
+
+static void
+wxTextWindowChangedProc (Widget w, XtPointer clientData, XtPointer ptr)
{
if (!wxGetWindowFromTable(w))
// Widget has been deleted!
wxTextCtrl *tw = (wxTextCtrl *) clientData;
tw->m_processedDefault = FALSE;
- // First, do some stuff if it's a password control.
- // (What does this do exactly?)
+ // First, do some stuff if it's a password control: in this case, we need
+ // to store the string inside the class because GetValue() can't retrieve
+ // it from the text ctrl. We do *not* do it in other circumstances because
+ // it would double the amount of memory needed.
- if (tw->GetWindowStyleFlag() & wxTE_PASSWORD)
+ if ( tw->GetWindowStyleFlag() & wxTE_PASSWORD )
{
- /* _sm_
- * At least on my system (SunOS 4.1.3 + Motif 1.2), you need to think of
- * every event as a replace event. cbs->text->ptr gives the replacement
- * text, cbs->startPos gives the index of the first char affected by the
- * replace, and cbs->endPos gives the index one more than the last char
- * affected by the replace (startPos == endPos implies an empty range).
- * Hence, a deletion is represented by replacing all input text with a
- * blank string ("", *not* NULL!). A simple insertion that does not
- * overwrite any text has startPos == endPos.
- */
+ MergeChangesIntoString(tw->m_value, cbs);
- if (tw->m_value.IsNull())
- {
- tw->m_value = cbs->text->ptr;
- }
- else
- {
- char * passwd = (char*) (const char*) tw->m_value; // Set up a more convenient alias.
-
- int len = passwd ? strlen(passwd) : 0; // Enough room for old text
- len += strlen(cbs->text->ptr) + 1; // + new text (if any) + NUL
- len -= cbs->endPos - cbs->startPos; // - text from affected region.
-
- char * newS = new char [len];
- char * p = passwd, * dest = newS, * insert = cbs->text->ptr;
-
- // Copy (old) text from passwd, up to the start posn of the change.
- int i;
- for (i = 0; i < cbs->startPos; ++i)
- *dest++ = *p++;
-
- // Copy the text to be inserted).
- while (*insert)
- *dest++ = *insert++;
-
- // Finally, copy into newS any remaining text from passwd[endPos] on.
- for (p = passwd + cbs->endPos; *p; )
- *dest++ = *p++;
- *dest = 0;
-
- tw->m_value = newS;
-
- delete[] newS;
- }
-
- if (cbs->text->length>0)
+ if ( cbs->text->length > 0 )
{
int i;
for (i = 0; i < cbs->text->length; ++i)
cbs->text->ptr[i] = '*';
- cbs->text->ptr[i] = 0;
+ cbs->text->ptr[i] = '\0';
}
}
- // If we're already within an OnChar, return: probably
- // a programmatic insertion.
+ // If we're already within an OnChar, return: probably a programmatic
+ // insertion.
if (tw->m_tempCallbackStruct)
return;
// Check for a backspace
if (cbs->startPos == (cbs->currInsert - 1))
{
- tw->m_tempCallbackStruct = (void*) cbs;
-
- wxKeyEvent event (wxEVT_CHAR);
- event.SetId(tw->GetId());
- event.m_keyCode = WXK_DELETE;
- event.SetEventObject(tw);
-
- // Only if wxTextCtrl::OnChar is called
- // will this be set to True (and the character
- // passed through)
- cbs->doit = False;
-
- tw->GetEventHandler()->ProcessEvent(event);
-
- tw->m_tempCallbackStruct = NULL;
-
- if (tw->InSetValue())
- return;
-
- if (tw->m_processedDefault)
- {
- // Can generate a command
- wxCommandEvent commandEvent(wxEVT_COMMAND_TEXT_UPDATED, tw->GetId());
- commandEvent.SetEventObject(tw);
- tw->ProcessCommand(commandEvent);
- }
+ tw->DoSendEvents((void *)cbs, WXK_DELETE);
return;
}
- // Pasting operation: let it through without
- // calling OnChar
+ // Pasting operation: let it through without calling OnChar
if (cbs->text->length > 1)
return;
if (cbs->text->ptr == NULL)
return;
- tw->m_tempCallbackStruct = (void*) cbs;
-
- wxKeyEvent event (wxEVT_CHAR);
- event.SetId(tw->GetId());
- event.SetEventObject(tw);
- event.m_keyCode = (cbs->text->ptr[0] == 10 ? 13 : cbs->text->ptr[0]);
-
- // Only if wxTextCtrl::OnChar is called
- // will this be set to True (and the character
- // passed through)
- cbs->doit = False;
-
- tw->GetEventHandler()->ProcessEvent(event);
-
- tw->m_tempCallbackStruct = NULL;
-
- if (tw->InSetValue())
- return;
-
- if (tw->m_processedDefault)
- {
- // Can generate a command
- wxCommandEvent commandEvent(wxEVT_COMMAND_TEXT_UPDATED, tw->GetId());
- commandEvent.SetEventObject(tw);
- tw->ProcessCommand(commandEvent);
- }
+ // normal key press
+ char ch = cbs->text->ptr[0];
+ tw->DoSendEvents((void *)cbs, ch == '\n' ? '\r' : ch);
}
-// ----------------------------------------------------------------------------
-// callbacks
-// ----------------------------------------------------------------------------
-
static void
wxTextWindowGainFocusProc (Widget w, XtPointer clientData, XmAnyCallbackStruct *cbs)
{
event.SetEventObject(tw);
tw->ProcessCommand(event);
}
+
projects / wxWidgets.git / commitdiff
