X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/9406d962ccf50d63f163896a2dd94123a2a8664a..abd474ea63667f727940a009cc3e0b23ba9f418f:/src/gtk1/textctrl.cpp?ds=sidebyside diff --git a/src/gtk1/textctrl.cpp b/src/gtk1/textctrl.cpp index f5fb50f0fb..7ce0d35e3d 100644 --- a/src/gtk1/textctrl.cpp +++ b/src/gtk1/textctrl.cpp @@ -1,346 +1,1373 @@ ///////////////////////////////////////////////////////////////////////////// -// Name: textctrl.cpp +// Name: src/gtk1/textctrl.cpp // Purpose: // Author: Robert Roebling -// Created: 01/02/97 -// Id: -// Copyright: (c) 1998 Robert Roebling, Julian Smart and Markus Holzem -// Licence: wxWindows licence +// Id: $Id$ +// Copyright: (c) 1998 Robert Roebling, Vadim Zeitlin +// Licence: wxWindows licence ///////////////////////////////////////////////////////////////////////////// -#ifdef __GNUG__ -#pragma implementation "textctrl.h" -#endif +// For compilers that support precompilation, includes "wx.h". +#include "wx/wxprec.h" #include "wx/textctrl.h" -#include "wx/utils.h" + +#ifndef WX_PRECOMP + #include "wx/app.h" + #include "wx/intl.h" + #include "wx/log.h" + #include "wx/utils.h" + #include "wx/panel.h" + #include "wx/settings.h" + #include "wx/math.h" +#endif + +#include "wx/strconv.h" +#include "wx/fontutil.h" // for wxNativeFontInfo (GetNativeFontInfo()) +#include "wx/evtloop.h" + +#include +#include +#include + +#include "wx/gtk1/private.h" +#include //----------------------------------------------------------------------------- -// wxTextCtrl +// idle system +//----------------------------------------------------------------------------- + +extern void wxapp_install_idle_handler(); +extern bool g_isIdle; + +//----------------------------------------------------------------------------- +// data //----------------------------------------------------------------------------- -IMPLEMENT_DYNAMIC_CLASS(wxTextCtrl,wxControl) +extern wxCursor g_globalCursor; +extern wxWindowGTK *g_delayedFocus; + +// ---------------------------------------------------------------------------- +// helpers +// ---------------------------------------------------------------------------- + +extern "C" { +static void wxGtkTextInsert(GtkWidget *text, + const wxTextAttr& attr, + const char *txt, + size_t len) +{ + wxFont tmpFont; + GdkFont *font; + if (attr.HasFont()) + { + tmpFont = attr.GetFont(); + + // FIXME: if this crashes because tmpFont goes out of scope and the GdkFont is + // deleted, then we need to call gdk_font_ref on font. + // This is because attr.GetFont() now returns a temporary font since wxTextAttr + // no longer stores a wxFont object, for efficiency. + + font = tmpFont.GetInternalFont(); + } + else + font = NULL; + + GdkColor *colFg = attr.HasTextColour() ? attr.GetTextColour().GetColor() + : NULL; + + GdkColor *colBg = attr.HasBackgroundColour() + ? attr.GetBackgroundColour().GetColor() + : NULL; + + gtk_text_insert( GTK_TEXT(text), font, colFg, colBg, txt, len ); +} +} + +// ---------------------------------------------------------------------------- +// "insert_text" for GtkEntry +// ---------------------------------------------------------------------------- -void gtk_text_changed_callback( GtkWidget *WXUNUSED(widget), wxTextCtrl *win ) +extern "C" { +static void +gtk_insert_text_callback(GtkEditable *editable, + const gchar *WXUNUSED(new_text), + gint WXUNUSED(new_text_length), + gint *WXUNUSED(position), + wxTextCtrl *win) { - win->SetModified(); -}; + if (g_isIdle) + wxapp_install_idle_handler(); + // we should only be called if we have a max len limit at all + GtkEntry *entry = GTK_ENTRY (editable); -BEGIN_EVENT_TABLE(wxTextCtrl, wxControl) -// EVT_CHAR(wxTextCtrl::OnChar) + wxCHECK_RET( entry->text_max_length, wxT("shouldn't be called") ); + + // check that we don't overflow the max length limit + // + // FIXME: this doesn't work when we paste a string which is going to be + // truncated + if ( entry->text_length == entry->text_max_length ) + { + // we don't need to run the base class version at all + gtk_signal_emit_stop_by_name(GTK_OBJECT(editable), "insert_text"); + + // remember that the next changed signal is to be ignored to avoid + // generating a dummy wxEVT_COMMAND_TEXT_UPDATED event + win->IgnoreNextTextUpdate(); + + // and generate the correct one ourselves + wxCommandEvent event(wxEVT_COMMAND_TEXT_MAXLEN, win->GetId()); + event.SetEventObject(win); + event.SetString(win->GetValue()); + win->HandleWindowEvent( event ); + } +} +} + +//----------------------------------------------------------------------------- +// "changed" +//----------------------------------------------------------------------------- + +extern "C" { +static void +gtk_text_changed_callback( GtkWidget *WXUNUSED(widget), wxTextCtrl *win ) +{ + if ( win->IgnoreTextUpdate() ) + return; + + if (!win->m_hasVMT) return; + + if (g_isIdle) + wxapp_install_idle_handler(); + + win->SetModified(); + win->UpdateFontIfNeeded(); + + wxCommandEvent event( wxEVT_COMMAND_TEXT_UPDATED, win->GetId() ); + event.SetEventObject( win ); + win->HandleWindowEvent( event ); +} +} + +//----------------------------------------------------------------------------- +// "changed" from vertical scrollbar +//----------------------------------------------------------------------------- + +extern "C" { +static void +gtk_scrollbar_changed_callback( GtkWidget *WXUNUSED(widget), wxTextCtrl *win ) +{ + if (!win->m_hasVMT) return; + + if (g_isIdle) + wxapp_install_idle_handler(); + + win->CalculateScrollbar(); +} +} + +// ---------------------------------------------------------------------------- +// redraw callback for multiline text +// ---------------------------------------------------------------------------- + +// redrawing a GtkText from inside a wxYield() call results in crashes (the +// text sample shows it in its "Add lines" command which shows wxProgressDialog +// which implicitly calls wxYield()) so we override GtkText::draw() and simply +// don't do anything if we're inside wxYield() + +extern "C" { + typedef void (*GtkDrawCallback)(GtkWidget *widget, GdkRectangle *rect); +} + +static GtkDrawCallback gs_gtk_text_draw = NULL; + +extern "C" { +static void wxgtk_text_draw( GtkWidget *widget, GdkRectangle *rect) +{ + wxEventLoopBase* loop = wxEventLoopBase::GetActive(); + if ( loop && !loop->IsYielding() ) + { + wxCHECK_RET( gs_gtk_text_draw != wxgtk_text_draw, + wxT("infinite recursion in wxgtk_text_draw aborted") ); + + gs_gtk_text_draw(widget, rect); + } +} +} + +//----------------------------------------------------------------------------- +// wxTextCtrl +//----------------------------------------------------------------------------- + +BEGIN_EVENT_TABLE(wxTextCtrl, wxTextCtrlBase) + 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() -wxTextCtrl::wxTextCtrl(void) : streambuf() -{ - if( allocate() ) - setp(base(),ebuf()); - - m_modified = FALSE; -}; - -wxTextCtrl::wxTextCtrl( wxWindow *parent, wxWindowID id, const wxString &value, - const wxPoint &pos, const wxSize &size, - int style, const wxString &name ) : streambuf() -{ - if( allocate() ) - setp(base(),ebuf()); - - m_modified = FALSE; - Create( parent, id, value, pos, size, style, name ); -}; - -bool wxTextCtrl::Create( wxWindow *parent, wxWindowID id, const wxString &value, - const wxPoint &pos, const wxSize &size, - int style, const wxString &name ) -{ - m_needParent = TRUE; - - PreCreation( parent, id, pos, size, style, name ); - - if (style & wxTE_MULTILINE) - m_widget = gtk_text_new( NULL, NULL ); - else - m_widget = gtk_entry_new(); - - wxSize newSize = size; - if (newSize.x == -1) newSize.x = 80; - if (newSize.y == -1) newSize.y = 26; - SetSize( newSize.x, newSize.y ); - - PostCreation(); - - // we want to be notified about text changes - gtk_signal_connect(GTK_OBJECT(m_widget), "changed", - GTK_SIGNAL_FUNC(gtk_text_changed_callback), - (gpointer)this); - - if (!value.IsNull()) - { - gint tmp = 0; - gtk_editable_insert_text( GTK_EDITABLE(m_widget), value, value.Length(), &tmp ); - }; - - if (style & wxREADONLY) - { - } - else - { - if (style & wxTE_MULTILINE) gtk_text_set_editable( GTK_TEXT(m_widget), 1 ); - }; - - Show( TRUE ); - - return TRUE; -}; - -wxString wxTextCtrl::GetValue(void) const -{ - wxString tmp; - if (m_windowStyle & wxTE_MULTILINE) - { - gint len = gtk_text_get_length( GTK_TEXT(m_widget) ); - tmp = gtk_editable_get_chars( GTK_EDITABLE(m_widget), 0, len ); - } - else - { - tmp = gtk_entry_get_text( GTK_ENTRY(m_widget) ); - }; - return tmp; -}; - -void wxTextCtrl::SetValue( const wxString &value ) -{ - wxString tmp = ""; - if (!value.IsNull()) tmp = value; - if (m_windowStyle & wxTE_MULTILINE) - { - gint len = gtk_text_get_length( GTK_TEXT(m_widget) ); - gtk_editable_delete_text( GTK_EDITABLE(m_widget), 0, len ); - len = 0; - gtk_editable_insert_text( GTK_EDITABLE(m_widget), tmp, tmp.Length(), &len ); - } - else - { - gtk_entry_set_text( GTK_ENTRY(m_widget), tmp ); - }; -}; +void wxTextCtrl::Init() +{ + m_ignoreNextUpdate = + m_modified = false; + SetUpdateFont(false); + m_text = + m_vScrollbar = NULL; +} -void wxTextCtrl::WriteText( const wxString &text ) +wxTextCtrl::~wxTextCtrl() { - if (text.IsNull()) return; +} - if (m_windowStyle & wxTE_MULTILINE) - { - gint len = gtk_text_get_length( GTK_TEXT(m_widget) ); - gtk_editable_insert_text( GTK_EDITABLE(m_widget), text, text.Length(), &len ); - } - else - { - gtk_entry_append_text( GTK_ENTRY(m_widget), text ); - }; -}; +wxTextCtrl::wxTextCtrl( wxWindow *parent, + wxWindowID id, + const wxString &value, + const wxPoint &pos, + const wxSize &size, + long style, + const wxValidator& validator, + const wxString &name ) +{ + Init(); -bool wxTextCtrl::LoadFile( const wxString &WXUNUSED(file) ) + Create( parent, id, value, pos, size, style, validator, name ); +} + +bool wxTextCtrl::Create( wxWindow *parent, + wxWindowID id, + const wxString &value, + const wxPoint &pos, + const wxSize &size, + long style, + const wxValidator& validator, + const wxString &name ) { - wxFAIL_MSG("wxTextCtrl::LoadFile not implemented"); + m_needParent = true; + m_acceptsFocus = true; + + if (!PreCreation( parent, pos, size ) || + !CreateBase( parent, id, pos, size, style, validator, name )) + { + wxFAIL_MSG( wxT("wxTextCtrl creation failed") ); + return false; + } + + + m_vScrollbarVisible = false; + + bool multi_line = (style & wxTE_MULTILINE) != 0; + + if (multi_line) + { + // create our control ... + m_text = gtk_text_new( NULL, NULL ); + + // ... and put into the upper left hand corner of the table + bool bHasHScrollbar = false; + m_widget = gtk_table_new(bHasHScrollbar ? 2 : 1, 2, FALSE); + GTK_WIDGET_UNSET_FLAGS( m_widget, GTK_CAN_FOCUS ); + gtk_table_attach( GTK_TABLE(m_widget), m_text, 0, 1, 0, 1, + (GtkAttachOptions)(GTK_FILL | GTK_EXPAND | GTK_SHRINK), + (GtkAttachOptions)(GTK_FILL | GTK_EXPAND | GTK_SHRINK), + 0, 0); + + // always wrap words + gtk_text_set_word_wrap( GTK_TEXT(m_text), TRUE ); + + // finally, put the vertical scrollbar in the upper right corner + m_vScrollbar = gtk_vscrollbar_new( GTK_TEXT(m_text)->vadj ); + GTK_WIDGET_UNSET_FLAGS( m_vScrollbar, GTK_CAN_FOCUS ); + gtk_table_attach(GTK_TABLE(m_widget), m_vScrollbar, 1, 2, 0, 1, + GTK_FILL, + (GtkAttachOptions)(GTK_EXPAND | GTK_FILL | GTK_SHRINK), + 0, 0); + } + else + { + // a single-line text control: no need for scrollbars + m_widget = + m_text = gtk_entry_new(); + } + + m_parent->DoAddChild( this ); + + m_focusWidget = m_text; + + PostCreation(size); + + if (multi_line) + gtk_widget_show(m_text); + + if (multi_line) + { + gtk_signal_connect(GTK_OBJECT(GTK_TEXT(m_text)->vadj), "changed", + (GtkSignalFunc) gtk_scrollbar_changed_callback, (gpointer) this ); + + // only initialize gs_gtk_text_draw once, starting from the next the + // klass::draw will already be wxgtk_text_draw + if ( !gs_gtk_text_draw ) + { + GtkDrawCallback& + draw = GTK_WIDGET_CLASS(GTK_OBJECT(m_text)->klass)->draw; - return FALSE; -}; + gs_gtk_text_draw = draw; -bool wxTextCtrl::SaveFile( const wxString &WXUNUSED(file) ) + draw = wxgtk_text_draw; + } + } + + if (!value.empty()) + { +#if !GTK_CHECK_VERSION(1, 2, 0) + // if we don't realize it, GTK 1.0.6 dies with a SIGSEGV in + // gtk_editable_insert_text() + gtk_widget_realize(m_text); +#endif // GTK 1.0 + + gint tmp = 0; +#if wxUSE_UNICODE + wxWX2MBbuf val = value.mbc_str(); + gtk_editable_insert_text( GTK_EDITABLE(m_text), val, strlen(val), &tmp ); +#else + gtk_editable_insert_text( GTK_EDITABLE(m_text), value, value.length(), &tmp ); +#endif + + if (multi_line) + { + // Bring editable's cursor uptodate. Bug in GTK. + SET_EDITABLE_POS(m_text, gtk_text_get_point( GTK_TEXT(m_text) )); + } + } + + if (style & wxTE_PASSWORD) + { + if (!multi_line) + gtk_entry_set_visibility( GTK_ENTRY(m_text), FALSE ); + } + + if (style & wxTE_READONLY) + { + if (!multi_line) + gtk_entry_set_editable( GTK_ENTRY(m_text), FALSE ); + } + else + { + if (multi_line) + gtk_text_set_editable( GTK_TEXT(m_text), 1 ); + } + + // We want to be notified about text changes. + gtk_signal_connect( GTK_OBJECT(m_text), "changed", + GTK_SIGNAL_FUNC(gtk_text_changed_callback), (gpointer)this); + + m_cursor = wxCursor( wxCURSOR_IBEAM ); + + wxTextAttr attrDef(GetForegroundColour(), GetBackgroundColour(), GetFont()); + SetDefaultStyle( attrDef ); + + return true; +} + + +void wxTextCtrl::CalculateScrollbar() +{ + if ((m_windowStyle & wxTE_MULTILINE) == 0) return; + + GtkAdjustment *adj = GTK_TEXT(m_text)->vadj; + + if (adj->upper - adj->page_size < 0.8) + { + if (m_vScrollbarVisible) + { + gtk_widget_hide( m_vScrollbar ); + m_vScrollbarVisible = false; + } + } + else + { + if (!m_vScrollbarVisible) + { + gtk_widget_show( m_vScrollbar ); + m_vScrollbarVisible = true; + } + } +} + +wxString wxTextCtrl::DoGetValue() const +{ + wxCHECK_MSG( m_text != NULL, wxEmptyString, wxT("invalid text ctrl") ); + + wxString tmp; + if (m_windowStyle & wxTE_MULTILINE) + { + gint len = gtk_text_get_length( GTK_TEXT(m_text) ); + char *text = gtk_editable_get_chars( GTK_EDITABLE(m_text), 0, len ); + tmp = text; + g_free( text ); + } + else + { + tmp = wxGTK_CONV_BACK( gtk_entry_get_text( GTK_ENTRY(m_text) ) ); + } + + return tmp; +} + +void wxTextCtrl::DoSetValue( const wxString &value, int flags ) { - wxFAIL_MSG("wxTextCtrl::SaveFile not implemented"); + wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") ); + + if ( !(flags & SetValue_SendEvent) ) + { + // do not generate events + IgnoreNextTextUpdate(); + } + + if (m_windowStyle & wxTE_MULTILINE) + { + gint len = gtk_text_get_length( GTK_TEXT(m_text) ); + gtk_editable_delete_text( GTK_EDITABLE(m_text), 0, len ); + len = 0; + gtk_editable_insert_text( GTK_EDITABLE(m_text), value.mbc_str(), value.length(), &len ); + } + else + { + gtk_entry_set_text( GTK_ENTRY(m_text), wxGTK_CONV( value ) ); + } + + // GRG, Jun/2000: Changed this after a lot of discussion in + // the lists. wxWidgets 2.2 will have a set of flags to + // customize this behaviour. + SetInsertionPoint(0); + + m_modified = false; +} + +void wxTextCtrl::WriteText( const wxString &text ) +{ + wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") ); + + if ( text.empty() ) + return; + + // gtk_text_changed_callback() will set m_modified to true but m_modified + // shouldn't be changed by the program writing to the text control itself, + // so save the old value and restore when we're done + bool oldModified = m_modified; + + if ( m_windowStyle & wxTE_MULTILINE ) + { + // After cursor movements, gtk_text_get_point() is wrong by one. + gtk_text_set_point( GTK_TEXT(m_text), GET_EDITABLE_POS(m_text) ); + + // always use m_defaultStyle, even if it is empty as otherwise + // resetting the style and appending some more text wouldn't work: if + // we don't specify the style explicitly, the old style would be used + gtk_editable_delete_selection( GTK_EDITABLE(m_text) ); + wxGtkTextInsert(m_text, m_defaultStyle, text.c_str(), text.length()); + + // we called wxGtkTextInsert with correct font, no need to do anything + // in UpdateFontIfNeeded() any longer + if ( !text.empty() ) + { + SetUpdateFont(false); + } + + // Bring editable's cursor back uptodate. + SET_EDITABLE_POS(m_text, gtk_text_get_point( GTK_TEXT(m_text) )); + } + else // single line + { + // First remove the selection if there is one + gtk_editable_delete_selection( GTK_EDITABLE(m_text) ); + + // This moves the cursor pos to behind the inserted text. + gint len = GET_EDITABLE_POS(m_text); + + gtk_editable_insert_text( GTK_EDITABLE(m_text), text.c_str(), text.length(), &len ); + + // Bring entry's cursor uptodate. + gtk_entry_set_position( GTK_ENTRY(m_text), len ); + } + + m_modified = oldModified; +} - return FALSE; -}; +void wxTextCtrl::AppendText( const wxString &text ) +{ + SetInsertionPointEnd(); + WriteText( text ); +} -/* wxString wxTextCtrl::GetLineText( long lineNo ) const { -}; + if (m_windowStyle & wxTE_MULTILINE) + { + gint len = gtk_text_get_length( GTK_TEXT(m_text) ); + char *text = gtk_editable_get_chars( GTK_EDITABLE(m_text), 0, len ); + + if (text) + { + wxString buf; + long i; + int currentLine = 0; + for (i = 0; currentLine != lineNo && text[i]; i++ ) + if (text[i] == '\n') + currentLine++; + // Now get the text + int j; + for (j = 0; text[i] && text[i] != '\n'; i++, j++ ) + buf += text[i]; + g_free( text ); + return buf; + } + else + { + return wxEmptyString; + } + } + else + { + if (lineNo == 0) return GetValue(); + return wxEmptyString; + } +} -void wxTextCtrl::OnDropFiles( wxDropFilesEvent &event ) +void wxTextCtrl::OnDropFiles( wxDropFilesEvent &WXUNUSED(event) ) { -}; + /* If you implement this, don't forget to update the documentation! + * (file docs/latex/wx/text.tex) */ + wxFAIL_MSG( wxT("wxTextCtrl::OnDropFiles not implemented") ); +} -long wxTextCtrl::PositionToXY( long pos, long *x, long *y ) const +bool wxTextCtrl::PositionToXY(long pos, long *x, long *y ) const { -}; + if ( m_windowStyle & wxTE_MULTILINE ) + { + wxString text = GetValue(); + + // cast to prevent warning. But pos really should've been unsigned. + if( (unsigned long)pos > text.length() ) + return false; -long wxTextCtrl::XYToPosition( long x, long y ) + *x=0; // First Col + *y=0; // First Line + + const wxChar* stop = text.c_str() + pos; + for ( const wxChar *p = text.c_str(); p < stop; p++ ) + { + if (*p == wxT('\n')) + { + (*y)++; + *x=0; + } + else + (*x)++; + } + } + else // single line control + { + if ( pos <= GTK_ENTRY(m_text)->text_length ) + { + *y = 0; + *x = pos; + } + else + { + // index out of bounds + return false; + } + } + + return true; +} + +long wxTextCtrl::XYToPosition(long x, long y ) const { -}; + if (!(m_windowStyle & wxTE_MULTILINE)) return 0; + + long pos=0; + for( int i=0; itext_length; - SetInsertionPoint( pos-1 ); -}; + wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") ); + + if (m_windowStyle & wxTE_MULTILINE) + { + SetInsertionPoint(gtk_text_get_length(GTK_TEXT(m_text))); + } + else + { + gtk_entry_set_position( GTK_ENTRY(m_text), -1 ); + } +} void wxTextCtrl::SetEditable( bool editable ) { - if (m_windowStyle & wxTE_MULTILINE) - gtk_text_set_editable( GTK_TEXT(m_widget), editable ); - else - gtk_entry_set_editable( GTK_ENTRY(m_widget), editable ); -}; + wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") ); + + if (m_windowStyle & wxTE_MULTILINE) + { + gtk_text_set_editable( GTK_TEXT(m_text), editable ); + } + else + { + gtk_entry_set_editable( GTK_ENTRY(m_text), editable ); + } +} + +void wxTextCtrl::DoEnable( bool enable ) +{ + if (m_windowStyle & wxTE_MULTILINE) + { + gtk_text_set_editable( GTK_TEXT(m_text), enable ); + } + else + { + gtk_widget_set_sensitive( m_text, enable ); + } +} + +// wxGTK-specific: called recursively by Enable, +// to give widgets an oppprtunity to correct their colours after they +// have been changed by Enable +void wxTextCtrl::OnEnabled( bool WXUNUSED(enable) ) +{ + if ( IsSingleLine() ) + return; + + // If we have a custom background colour, we use this colour in both + // disabled and enabled mode, or we end up with a different colour under the + // text. + wxColour oldColour = GetBackgroundColour(); + if (oldColour.IsOk()) + { + // Need to set twice or it'll optimize the useful stuff out + if (oldColour == * wxWHITE) + SetBackgroundColour(*wxBLACK); + else + SetBackgroundColour(*wxWHITE); + SetBackgroundColour(oldColour); + } +} + +void wxTextCtrl::MarkDirty() +{ + m_modified = true; +} + +void wxTextCtrl::DiscardEdits() +{ + m_modified = false; +} + +// ---------------------------------------------------------------------------- +// max text length support +// ---------------------------------------------------------------------------- + +void wxTextCtrl::IgnoreNextTextUpdate() +{ + m_ignoreNextUpdate = true; +} + +bool wxTextCtrl::IgnoreTextUpdate() +{ + if ( m_ignoreNextUpdate ) + { + m_ignoreNextUpdate = false; + + return true; + } + + return false; +} + +void wxTextCtrl::SetMaxLength(unsigned long len) +{ + if ( !HasFlag(wxTE_MULTILINE) ) + { + gtk_entry_set_max_length(GTK_ENTRY(m_text), len); + + // there is a bug in GTK+ 1.2.x: "changed" signal is emitted even if + // we had tried to enter more text than allowed by max text length and + // the text wasn't really changed + // + // to detect this and generate TEXT_MAXLEN event instead of + // TEXT_CHANGED one in this case we also catch "insert_text" signal + // + // when max len is set to 0 we disconnect our handler as it means that + // we shouldn't check anything any more + if ( len ) + { + gtk_signal_connect( GTK_OBJECT(m_text), + "insert_text", + GTK_SIGNAL_FUNC(gtk_insert_text_callback), + (gpointer)this); + } + else // no checking + { + gtk_signal_disconnect_by_func + ( + GTK_OBJECT(m_text), + GTK_SIGNAL_FUNC(gtk_insert_text_callback), + (gpointer)this + ); + } + } +} void wxTextCtrl::SetSelection( long from, long to ) { - gtk_editable_select_region( GTK_EDITABLE(m_widget), (gint)from, (gint)to ); -}; + wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") ); -void wxTextCtrl::ShowPosition( long WXUNUSED(pos) ) + if (from == -1 && to == -1) + { + from = 0; + to = GetValue().length(); + } + + if ( (m_windowStyle & wxTE_MULTILINE) && + !GTK_TEXT(m_text)->line_start_cache ) + { + // tell the programmer that it didn't work + wxLogDebug(wxT("Can't call SetSelection() before realizing the control")); + return; + } + + if (m_windowStyle & wxTE_MULTILINE) + { + gtk_editable_select_region( GTK_EDITABLE(m_text), (gint)from, (gint)to ); + } + else + { + gtk_editable_select_region( GTK_EDITABLE(m_text), (gint)from, (gint)to ); + } +} + +void wxTextCtrl::ShowPosition( long pos ) { - wxFAIL_MSG("wxTextCtrl::ShowPosition not implemented"); -}; + if (m_windowStyle & wxTE_MULTILINE) + { + GtkAdjustment *vp = GTK_TEXT(m_text)->vadj; + float totalLines = (float) GetNumberOfLines(); + long posX; + long posY; + PositionToXY(pos, &posX, &posY); + float posLine = (float) posY; + float p = (posLine/totalLines)*(vp->upper - vp->lower) + vp->lower; + gtk_adjustment_set_value(GTK_TEXT(m_text)->vadj, p); + } +} -long wxTextCtrl::GetInsertionPoint(void) const +long wxTextCtrl::GetInsertionPoint() const { - return (long) GTK_EDITABLE(m_widget)->current_pos; -}; + wxCHECK_MSG( m_text != NULL, 0, wxT("invalid text ctrl") ); + return (long) GET_EDITABLE_POS(m_text); +} -long wxTextCtrl::GetLastPosition(void) const +wxTextPos wxTextCtrl::GetLastPosition() const { - int pos = 0; - if (m_windowStyle & wxTE_MULTILINE) - pos = gtk_text_get_length( GTK_TEXT(m_widget) ); - else - pos = GTK_ENTRY(m_widget)->text_length; - return (long)pos-1; -}; + wxCHECK_MSG( m_text != NULL, 0, wxT("invalid text ctrl") ); + + int pos = 0; + + if (m_windowStyle & wxTE_MULTILINE) + { + pos = gtk_text_get_length( GTK_TEXT(m_text) ); + } + else + { + pos = GTK_ENTRY(m_text)->text_length; + } + + return (long)pos; +} void wxTextCtrl::Remove( long from, long to ) { - gtk_editable_delete_text( GTK_EDITABLE(m_widget), (gint)from, (gint)to ); -}; + wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") ); + gtk_editable_delete_text( GTK_EDITABLE(m_text), (gint)from, (gint)to ); +} void wxTextCtrl::Replace( long from, long to, const wxString &value ) { - gtk_editable_delete_text( GTK_EDITABLE(m_widget), (gint)from, (gint)to ); - if (value.IsNull()) return; - gint pos = (gint)to; - gtk_editable_insert_text( GTK_EDITABLE(m_widget), value, value.Length(), &pos ); -}; + wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") ); + + Remove( from, to ); + + if (!value.empty()) + { + gint pos = (gint)from; +#if wxUSE_UNICODE + wxWX2MBbuf buf = value.mbc_str(); + gtk_editable_insert_text( GTK_EDITABLE(m_text), buf, strlen(buf), &pos ); +#else + gtk_editable_insert_text( GTK_EDITABLE(m_text), value, value.length(), &pos ); +#endif // wxUSE_UNICODE + } +} -void wxTextCtrl::Cut(void) +void wxTextCtrl::Cut() { - gtk_editable_cut_clipboard( GTK_EDITABLE(m_widget), 0 ); -}; + wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") ); + gtk_editable_cut_clipboard(GTK_EDITABLE(m_text) DUMMY_CLIPBOARD_ARG); +} -void wxTextCtrl::Copy(void) +void wxTextCtrl::Copy() { - gtk_editable_copy_clipboard( GTK_EDITABLE(m_widget), 0 ); -}; + wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") ); + gtk_editable_copy_clipboard(GTK_EDITABLE(m_text) DUMMY_CLIPBOARD_ARG); +} -void wxTextCtrl::Paste(void) +void wxTextCtrl::Paste() { - gtk_editable_paste_clipboard( GTK_EDITABLE(m_widget), 0 ); -}; + wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") ); + gtk_editable_paste_clipboard(GTK_EDITABLE(m_text) DUMMY_CLIPBOARD_ARG); +} -void wxTextCtrl::Delete(void) +// Undo/redo +void wxTextCtrl::Undo() { - SetValue( "" ); -}; + // TODO + wxFAIL_MSG( wxT("wxTextCtrl::Undo not implemented") ); +} -void wxTextCtrl::OnChar( wxKeyEvent &WXUNUSED(event) ) +void wxTextCtrl::Redo() { -}; + // TODO + wxFAIL_MSG( wxT("wxTextCtrl::Redo not implemented") ); +} -int wxTextCtrl::overflow(int c) +bool wxTextCtrl::CanUndo() const { - int len = pptr() - pbase(); - char *txt = new char[len+1]; - strncpy(txt, pbase(), len); - txt[len] = '\0'; - (*this) << txt; - setp(pbase(), epptr()); - delete[] txt; - return EOF; -}; + // TODO + //wxFAIL_MSG( wxT("wxTextCtrl::CanUndo not implemented") ); + return false; +} -int wxTextCtrl::sync(void) +bool wxTextCtrl::CanRedo() const { - int len = pptr() - pbase(); - char *txt = new char[len+1]; - strncpy(txt, pbase(), len); - txt[len] = '\0'; - (*this) << txt; - setp(pbase(), epptr()); - delete[] txt; - return 0; -}; + // TODO + //wxFAIL_MSG( wxT("wxTextCtrl::CanRedo not implemented") ); + return false; +} -int wxTextCtrl::underflow(void) +// If the return values from and to are the same, there is no +// selection. +void wxTextCtrl::GetSelection(long* fromOut, long* toOut) const { - return EOF; -}; + wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") ); + + gint from = -1; + gint to = -1; + bool haveSelection = false; + + if ( (GTK_EDITABLE(m_text)->has_selection) ) + { + haveSelection = true; + from = (long) GTK_EDITABLE(m_text)->selection_start_pos; + to = (long) GTK_EDITABLE(m_text)->selection_end_pos; + } + + if (! haveSelection ) + from = to = GetInsertionPoint(); -wxTextCtrl& wxTextCtrl::operator<<(const wxString& s) + if ( from > to ) + { + // exchange them to be compatible with wxMSW + gint tmp = from; + from = to; + to = tmp; + } + + if ( fromOut ) + *fromOut = from; + if ( toOut ) + *toOut = to; +} + + +bool wxTextCtrl::IsEditable() const { - WriteText(s); - return *this; + wxCHECK_MSG( m_text != NULL, false, wxT("invalid text ctrl") ); + return GTK_EDITABLE(m_text)->editable; } -wxTextCtrl& wxTextCtrl::operator<<(float f) +bool wxTextCtrl::IsModified() const { - static char buf[100]; - sprintf(buf, "%.2f", f); - WriteText(buf); - return *this; + return m_modified; } -wxTextCtrl& wxTextCtrl::operator<<(double d) +void wxTextCtrl::Clear() { - static char buf[100]; - sprintf(buf, "%.2f", d); - WriteText(buf); - return *this; + SetValue( wxEmptyString ); } -wxTextCtrl& wxTextCtrl::operator<<(int i) +void wxTextCtrl::OnChar( wxKeyEvent &key_event ) { - static char buf[100]; - sprintf(buf, "%i", i); - WriteText(buf); - return *this; + wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") ); + + if ((key_event.GetKeyCode() == WXK_RETURN) && (m_windowStyle & wxTE_PROCESS_ENTER)) + { + wxCommandEvent event(wxEVT_COMMAND_TEXT_ENTER, m_windowId); + event.SetEventObject(this); + event.SetString(GetValue()); + if (HandleWindowEvent(event)) return; + } + + if ((key_event.GetKeyCode() == WXK_RETURN) && !(m_windowStyle & wxTE_MULTILINE)) + { + // This will invoke the dialog default action, such + // as the clicking the default button. + + wxWindow *top_frame = m_parent; + while (top_frame->GetParent() && !(top_frame->IsTopLevel())) + top_frame = top_frame->GetParent(); + + if (top_frame && GTK_IS_WINDOW(top_frame->m_widget)) + { + GtkWindow *window = GTK_WINDOW(top_frame->m_widget); + + if (window->default_widget) + { + gtk_widget_activate (window->default_widget); + return; + } + } + } + + key_event.Skip(); +} + +GtkWidget* wxTextCtrl::GetConnectWidget() +{ + return GTK_WIDGET(m_text); +} + +bool wxTextCtrl::IsOwnGtkWindow( GdkWindow *window ) +{ + if (m_windowStyle & wxTE_MULTILINE) + { + return (window == GTK_TEXT(m_text)->text_area); + } + else + { + return (window == GTK_ENTRY(m_text)->text_area); + } +} + +// the font will change for subsequent text insertiongs +bool wxTextCtrl::SetFont( const wxFont &font ) +{ + wxCHECK_MSG( m_text != NULL, false, wxT("invalid text ctrl") ); + + if ( !wxTextCtrlBase::SetFont(font) ) + { + // font didn't change, nothing to do + return false; + } + + if ( m_windowStyle & wxTE_MULTILINE ) + { + SetUpdateFont(true); + + m_defaultStyle.SetFont(font); + + ChangeFontGlobally(); + } + + return true; +} + +void wxTextCtrl::ChangeFontGlobally() +{ + // this method is very inefficient and hence should be called as rarely as + // possible! + wxASSERT_MSG( (m_windowStyle & wxTE_MULTILINE) && m_updateFont, + + wxT("shouldn't be called for single line controls") ); + + wxString value = GetValue(); + if ( !value.empty() ) + { + SetUpdateFont(false); + + Clear(); + AppendText(value); + } } -wxTextCtrl& wxTextCtrl::operator<<(long i) +void wxTextCtrl::UpdateFontIfNeeded() { - static char buf[100]; - sprintf(buf, "%ld", i); - WriteText(buf); - return *this; + if ( m_updateFont ) + ChangeFontGlobally(); } -wxTextCtrl& wxTextCtrl::operator<<(const char c) +bool wxTextCtrl::SetForegroundColour(const wxColour& colour) { - char buf[2]; + if ( !wxControl::SetForegroundColour(colour) ) + return false; + + // update default fg colour too + m_defaultStyle.SetTextColour(colour); - buf[0] = c; - buf[1] = 0; - WriteText(buf); - return *this; + return true; } +bool wxTextCtrl::SetBackgroundColour( const wxColour &colour ) +{ + wxCHECK_MSG( m_text != NULL, false, wxT("invalid text ctrl") ); + + if ( !wxControl::SetBackgroundColour( colour ) ) + return false; + + if (!m_widget->window) + return false; + + if (!m_backgroundColour.IsOk()) + return false; + + if (m_windowStyle & wxTE_MULTILINE) + { + GdkWindow *window = GTK_TEXT(m_text)->text_area; + if (!window) + return false; + m_backgroundColour.CalcPixel( gdk_window_get_colormap( window ) ); + gdk_window_set_background( window, m_backgroundColour.GetColor() ); + gdk_window_clear( window ); + } + + // change active background color too + m_defaultStyle.SetBackgroundColour( colour ); + + return true; +} + +bool wxTextCtrl::SetStyle( long start, long end, const wxTextAttr& style ) +{ + if ( m_windowStyle & wxTE_MULTILINE ) + { + if ( style.IsDefault() ) + { + // nothing to do + return true; + } + + // VERY dirty way to do that - removes the required text and re-adds it + // with styling (FIXME) + + gint l = gtk_text_get_length( GTK_TEXT(m_text) ); + + wxCHECK_MSG( start >= 0 && end <= l, false, + wxT("invalid range in wxTextCtrl::SetStyle") ); + + gint old_pos = gtk_editable_get_position( GTK_EDITABLE(m_text) ); + char *text = gtk_editable_get_chars( GTK_EDITABLE(m_text), start, end ); + wxString tmp(text,*wxConvCurrent); + g_free( text ); + + gtk_editable_delete_text( GTK_EDITABLE(m_text), start, end ); + gtk_editable_set_position( GTK_EDITABLE(m_text), start ); + + #if wxUSE_UNICODE + wxWX2MBbuf buf = tmp.mbc_str(); + const char *txt = buf; + size_t txtlen = strlen(buf); + #else + const char *txt = tmp; + size_t txtlen = tmp.length(); + #endif + + // use the attributes from style which are set in it and fall back + // first to the default style and then to the text control default + // colours for the others + wxGtkTextInsert(m_text, + wxTextAttr::Combine(style, m_defaultStyle, this), + txt, + txtlen); + + /* does not seem to help under GTK+ 1.2 !!! + gtk_editable_set_position( GTK_EDITABLE(m_text), old_pos ); */ + SetInsertionPoint( old_pos ); + + return true; + } + + // else single line + // cannot do this for GTK+'s Entry widget + return false; +} + +void wxTextCtrl::DoApplyWidgetStyle(GtkRcStyle *style) +{ + gtk_widget_modify_style(m_text, style); +} + +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() ); +} + +void wxTextCtrl::OnInternalIdle() +{ + wxCursor cursor = m_cursor; + if (g_globalCursor.IsOk()) cursor = g_globalCursor; + + if (cursor.IsOk()) + { + GdkWindow *window = NULL; + if (HasFlag(wxTE_MULTILINE)) + window = GTK_TEXT(m_text)->text_area; + else + window = GTK_ENTRY(m_text)->text_area; + + if (window) + gdk_window_set_cursor( window, cursor.GetCursor() ); + + if (!g_globalCursor.IsOk()) + cursor = *wxSTANDARD_CURSOR; + + window = m_widget->window; + if ((window) && !(GTK_WIDGET_NO_WINDOW(m_widget))) + gdk_window_set_cursor( window, cursor.GetCursor() ); + } + + if (g_delayedFocus == this) + { + if (GTK_WIDGET_REALIZED(m_widget)) + { + gtk_widget_grab_focus( m_widget ); + g_delayedFocus = NULL; + } + } + + if (wxUpdateUIEvent::CanUpdate(this)) + UpdateWindowUI(wxUPDATE_UI_FROMIDLE); +} + +wxSize wxTextCtrl::DoGetBestSize() const +{ + // FIXME should be different for multi-line controls... + wxSize ret( wxControl::DoGetBestSize() ); + wxSize best(80, ret.y); + CacheBestSize(best); + return best; +} + +// ---------------------------------------------------------------------------- +// freeze/thaw +// ---------------------------------------------------------------------------- + +void wxTextCtrl::DoFreeze() +{ + if ( HasFlag(wxTE_MULTILINE) ) + { + gtk_text_freeze(GTK_TEXT(m_text)); + } +} + +void wxTextCtrl::DoThaw() +{ + if ( HasFlag(wxTE_MULTILINE) ) + { + GTK_TEXT(m_text)->vadj->value = 0.0; + + gtk_text_thaw(GTK_TEXT(m_text)); + } +} + +// ---------------------------------------------------------------------------- +// scrolling +// ---------------------------------------------------------------------------- + +GtkAdjustment *wxTextCtrl::GetVAdj() const +{ + if ( !IsMultiLine() ) + return NULL; + + return GTK_TEXT(m_text)->vadj; +} + +bool wxTextCtrl::DoScroll(GtkAdjustment *adj, int diff) +{ + float value = adj->value + diff; + + if ( value < 0 ) + value = 0; + + float upper = adj->upper - adj->page_size; + if ( value > upper ) + value = upper; + + // did we noticeably change the scroll position? + if ( fabs(adj->value - value) < 0.2 ) + { + // well, this is what Robert does in wxScrollBar, so it must be good... + return false; + } + + adj->value = value; + gtk_signal_emit_by_name(GTK_OBJECT(adj), "value_changed"); + + return true; +} + +bool wxTextCtrl::ScrollLines(int lines) +{ + GtkAdjustment *adj = GetVAdj(); + if ( !adj ) + return false; + + // this is hardcoded to 10 in GTK+ 1.2 (great idea) + int diff = 10*lines; + + return DoScroll(adj, diff); +} + +bool wxTextCtrl::ScrollPages(int pages) +{ + GtkAdjustment *adj = GetVAdj(); + if ( !adj ) + return false; + + return DoScroll(adj, (int)ceil(pages*adj->page_increment)); +} + + +// static +wxVisualAttributes +wxTextCtrl::GetClassDefaultAttributes(wxWindowVariant WXUNUSED(variant)) +{ + return GetDefaultAttributesFromGTKWidget(gtk_entry_new, true); +}