X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/66a007fbcb7b73de4d433a2ba3201b1faa41363e..7e2c43b8551c394d790e416ae52a4476c759683e:/src/motif/textctrl.cpp diff --git a/src/motif/textctrl.cpp b/src/motif/textctrl.cpp index d5a0d021b1..5a8950d25d 100644 --- a/src/motif/textctrl.cpp +++ b/src/motif/textctrl.cpp @@ -39,6 +39,11 @@ // 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); @@ -52,6 +57,19 @@ static void wxTextWindowActivateProc(Widget w, XtPointer clientData, XmAnyCallba BEGIN_EVENT_TABLE(wxTextCtrl, wxControl) EVT_DROP_FILES(wxTextCtrl::OnDropFiles) EVT_CHAR(wxTextCtrl::OnChar) + + EVT_MENU(wxID_CUT, wxTextCtrl::OnCut) + EVT_MENU(wxID_COPY, wxTextCtrl::OnCopy) + EVT_MENU(wxID_PASTE, wxTextCtrl::OnPaste) + EVT_MENU(wxID_UNDO, wxTextCtrl::OnUndo) + EVT_MENU(wxID_REDO, wxTextCtrl::OnRedo) + + EVT_UPDATE_UI(wxID_CUT, wxTextCtrl::OnUpdateCut) + EVT_UPDATE_UI(wxID_COPY, wxTextCtrl::OnUpdateCopy) + EVT_UPDATE_UI(wxID_PASTE, wxTextCtrl::OnUpdatePaste) + EVT_UPDATE_UI(wxID_UNDO, wxTextCtrl::OnUpdateUndo) + EVT_UPDATE_UI(wxID_REDO, wxTextCtrl::OnUpdateRedo) + END_EVENT_TABLE() #endif @@ -185,22 +203,34 @@ WXWidget wxTextCtrl::GetTopWidget() const 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) @@ -228,6 +258,67 @@ void wxTextCtrl::Paste() XmTextPaste((Widget) m_mainWidget); } +bool wxTextCtrl::CanCopy() const +{ + // Can copy if there's a selection + long from, to; + GetSelection(& from, & to); + return (from != to) ; +} + +bool wxTextCtrl::CanCut() const +{ + // Can cut if there's a selection + long from, to; + GetSelection(& from, & to); + return (from != to) ; +} + +bool wxTextCtrl::CanPaste() const +{ + return IsEditable() ; +} + +// Undo/redo +void wxTextCtrl::Undo() +{ + // Not possible in Motif +} + +void wxTextCtrl::Redo() +{ + // Not possible in Motif +} + +bool wxTextCtrl::CanUndo() const +{ + // No Undo in Motif + return FALSE; +} + +bool wxTextCtrl::CanRedo() const +{ + // No Redo in Motif + return FALSE; +} + +// If the return values from and to are the same, there is no +// selection. +void wxTextCtrl::GetSelection(long* from, long* to) const +{ + XmTextPosition left, right; + + XmTextGetSelectionPosition((Widget) m_mainWidget, & left, & right); + + *from = (long) left; + *to = (long) right; +} + +bool wxTextCtrl::IsEditable() const +{ + return (XmTextGetEditable((Widget) m_mainWidget) != 0); +} + void wxTextCtrl::SetEditable(bool editable) { XmTextSetEditable((Widget) m_mainWidget, (Boolean) editable); @@ -386,7 +477,6 @@ bool wxTextCtrl::IsModified() const // Makes 'unmodified' void wxTextCtrl::DiscardEdits() { - XmTextSetString ((Widget) m_mainWidget, ""); m_modified = FALSE; } @@ -727,7 +817,96 @@ void wxTextCtrl::ChangeForegroundColour() } } -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! @@ -743,105 +922,38 @@ wxTextWindowModifyProc (Widget w, XtPointer clientData, XmTextVerifyCallbackStru 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. - */ - - 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++; + MergeChangesIntoString(tw->m_value, cbs); - // 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; @@ -849,38 +961,11 @@ wxTextWindowModifyProc (Widget w, XtPointer clientData, XmTextVerifyCallbackStru 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) { @@ -921,3 +1006,53 @@ static void wxTextWindowActivateProc(Widget w, XtPointer clientData, event.SetEventObject(tw); tw->ProcessCommand(event); } + +void wxTextCtrl::OnCut(wxCommandEvent& WXUNUSED(event)) +{ + Cut(); +} + +void wxTextCtrl::OnCopy(wxCommandEvent& WXUNUSED(event)) +{ + Copy(); +} + +void wxTextCtrl::OnPaste(wxCommandEvent& WXUNUSED(event)) +{ + Paste(); +} + +void wxTextCtrl::OnUndo(wxCommandEvent& WXUNUSED(event)) +{ + Undo(); +} + +void wxTextCtrl::OnRedo(wxCommandEvent& WXUNUSED(event)) +{ + Redo(); +} + +void wxTextCtrl::OnUpdateCut(wxUpdateUIEvent& event) +{ + event.Enable( CanCut() ); +} + +void wxTextCtrl::OnUpdateCopy(wxUpdateUIEvent& event) +{ + event.Enable( CanCopy() ); +} + +void wxTextCtrl::OnUpdatePaste(wxUpdateUIEvent& event) +{ + event.Enable( CanPaste() ); +} + +void wxTextCtrl::OnUpdateUndo(wxUpdateUIEvent& event) +{ + event.Enable( CanUndo() ); +} + +void wxTextCtrl::OnUpdateRedo(wxUpdateUIEvent& event) +{ + event.Enable( CanRedo() ); +}