X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/e2414cbe8c21931afbb590132232553514da824c..88594d02eb59a55ac85d3210a49d02918124617b:/src/gtk/textctrl.cpp diff --git a/src/gtk/textctrl.cpp b/src/gtk/textctrl.cpp index 568d0babb5..0441064567 100644 --- a/src/gtk/textctrl.cpp +++ b/src/gtk/textctrl.cpp @@ -2,10 +2,9 @@ // Name: 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__ @@ -14,343 +13,1304 @@ #include "wx/textctrl.h" #include "wx/utils.h" +#include "wx/intl.h" +#include "wx/log.h" +#include "wx/settings.h" +#include "wx/panel.h" + +#include +#include +#include +#include // for fabs + +#include "gdk/gdk.h" +#include "gtk/gtk.h" +#include "gdk/gdkkeysyms.h" //----------------------------------------------------------------------------- -// wxTextCtrl +// idle system //----------------------------------------------------------------------------- -IMPLEMENT_DYNAMIC_CLASS(wxTextCtrl,wxControl) +extern void wxapp_install_idle_handler(); +extern bool g_isIdle; + +//----------------------------------------------------------------------------- +// data +//----------------------------------------------------------------------------- + +extern bool g_blockEventsOnDrag; +extern wxCursor g_globalCursor; + +// ---------------------------------------------------------------------------- +// helpers +// ---------------------------------------------------------------------------- + +static void wxGtkTextInsert(GtkWidget *text, + const wxTextAttr& attr, + const char *txt, + size_t len) +{ + GdkFont *font = attr.HasFont() ? attr.GetFont().GetInternalFont() + : 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 +// ---------------------------------------------------------------------------- + +static void +gtk_insert_text_callback(GtkEditable *editable, + const gchar *new_text, + gint new_text_length, + gint *position, + wxTextCtrl *win) +{ + 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); + + wxCHECK_RET( entry->text_max_length, _T("shouldn't be called") ); -void gtk_text_changed_callback( GtkWidget *WXUNUSED(widget), wxTextCtrl *win ) + // 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->GetEventHandler()->ProcessEvent( event ); + } +} + +//----------------------------------------------------------------------------- +// "changed" +//----------------------------------------------------------------------------- + +static void +gtk_text_changed_callback( GtkWidget *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 ); + event.SetString( win->GetValue() ); + win->GetEventHandler()->ProcessEvent( event ); +} + +//----------------------------------------------------------------------------- +// "changed" from vertical scrollbar +//----------------------------------------------------------------------------- + +static void +gtk_scrollbar_changed_callback( GtkWidget *WXUNUSED(widget), wxTextCtrl *win ) { - win->m_modified = TRUE; -}; + if (!win->m_hasVMT) return; + + if (g_isIdle) + wxapp_install_idle_handler(); + + win->CalculateScrollbar(); +} +//----------------------------------------------------------------------------- +// wxTextCtrl +//----------------------------------------------------------------------------- + +IMPLEMENT_DYNAMIC_CLASS(wxTextCtrl,wxControl) BEGIN_EVENT_TABLE(wxTextCtrl, wxControl) -// EVT_CHAR(wxTextCtrl::OnChar) + 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::Init() +{ + m_ignoreNextUpdate = + m_modified = FALSE; + m_updateFont = FALSE; + m_text = + m_vScrollbar = (GtkWidget *)NULL; +} -void wxTextCtrl::SetValue( const wxString &value ) +wxTextCtrl::wxTextCtrl( wxWindow *parent, + wxWindowID id, + const wxString &value, + const wxPoint &pos, + const wxSize &size, + long style, + const wxValidator& validator, + const wxString &name ) { - 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 ); - }; -}; + Init(); -void wxTextCtrl::WriteText( const wxString &text ) + 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 ) { - if (text.IsNull()) return; + 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) + { +#if (GTK_MINOR_VERSION > 2) + /* a multi-line edit control: create a vertical scrollbar by default and + horizontal if requested */ + bool bHasHScrollbar = (style & wxHSCROLL) != 0; +#else + bool bHasHScrollbar = FALSE; +#endif + + /* create our control ... */ + m_text = gtk_text_new( (GtkAdjustment *) NULL, (GtkAdjustment *) NULL ); + + /* ... and put into the upper left hand corner of the table */ + 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 ); + +#if (GTK_MINOR_VERSION > 2) + /* put the horizontal scrollbar in the lower left hand corner */ + if (bHasHScrollbar) + { + GtkWidget *hscrollbar = gtk_hscrollbar_new(GTK_TEXT(m_text)->hadj); + GTK_WIDGET_UNSET_FLAGS( hscrollbar, GTK_CAN_FOCUS ); + gtk_table_attach(GTK_TABLE(m_widget), hscrollbar, 0, 1, 1, 2, + (GtkAttachOptions)(GTK_EXPAND | GTK_FILL | GTK_SHRINK), + GTK_FILL, + 0, 0); + gtk_widget_show(hscrollbar); + + /* don't wrap lines, otherwise we wouldn't need the scrollbar */ + gtk_text_set_line_wrap( GTK_TEXT(m_text), FALSE ); + } +#endif + + /* 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(); + + SetFont( parent->GetFont() ); + + wxSize size_best( DoGetBestSize() ); + wxSize new_size( size ); + if (new_size.x == -1) + new_size.x = size_best.x; + if (new_size.y == -1) + new_size.y = size_best.y; + if ((new_size.x != size.x) || (new_size.y != size.y)) + SetSize( new_size.x, new_size.y ); + + 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 ); + } + + if (!value.IsEmpty()) + { + gint tmp = 0; + +#if GTK_MINOR_VERSION == 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 + +#if wxUSE_UNICODE + wxWX2MBbuf val = value.mbc_str(); + gtk_editable_insert_text( GTK_EDITABLE(m_text), val, strlen(val), &tmp ); +#else // !Unicode + gtk_editable_insert_text( GTK_EDITABLE(m_text), value, value.Length(), &tmp ); +#endif // Unicode/!Unicode + + if (multi_line) + { + /* bring editable's cursor uptodate. bug in GTK. */ + + GTK_EDITABLE(m_text)->current_pos = 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); - 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 ); - }; -}; + /* we don't set a valid background colour, because the window + manager should use a default one */ + m_backgroundColour = wxColour(); -bool wxTextCtrl::LoadFile( const wxString &WXUNUSED(file) ) + wxColour colFg = parent->GetForegroundColour(); + SetForegroundColour( colFg ); + + m_cursor = wxCursor( wxCURSOR_IBEAM ); + + wxTextAttr attrDef( colFg, m_backgroundColour, parent->GetFont() ); + SetDefaultStyle( attrDef ); + + Show( TRUE ); + + 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::GetValue() const { - wxFAIL_MSG("wxTextCtrl::LoadFile not implemented"); + wxCHECK_MSG( m_text != NULL, wxT(""), wxT("invalid text ctrl") ); - return FALSE; -}; + 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 = wxString(text,*wxConvCurrent); + g_free( text ); + } + else + { + tmp = wxString(gtk_entry_get_text( GTK_ENTRY(m_text) ),*wxConvCurrent); + } + return tmp; +} -bool wxTextCtrl::SaveFile( const wxString &WXUNUSED(file) ) +void wxTextCtrl::SetValue( const wxString &value ) { - wxFAIL_MSG("wxTextCtrl::SaveFile not implemented"); + wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") ); + + 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; +#if wxUSE_UNICODE + wxWX2MBbuf tmpbuf = value.mbc_str(); + gtk_editable_insert_text( GTK_EDITABLE(m_text), tmpbuf, strlen(tmpbuf), &len ); +#else + gtk_editable_insert_text( GTK_EDITABLE(m_text), value.mbc_str(), value.Length(), &len ); +#endif + } + else + { + gtk_entry_set_text( GTK_ENTRY(m_text), value.mbc_str() ); + } - return FALSE; -}; + // GRG, Jun/2000: Changed this after a lot of discussion in + // the lists. wxWindows 2.2 will have a set of flags to + // customize this behaviour. + SetInsertionPoint(0); -bool wxTextCtrl::IsModified(void) + m_modified = FALSE; +} + +void wxTextCtrl::WriteText( const wxString &text ) { - return m_modified; -}; + wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") ); + + if ( text.empty() ) + return; + +#if wxUSE_UNICODE + wxWX2MBbuf buf = text.mbc_str(); + const char *txt = buf; + size_t txtlen = strlen(buf); +#else + const char *txt = text; + size_t txtlen = text.length(); +#endif + + if ( m_windowStyle & wxTE_MULTILINE ) + { + // After cursor movements, gtk_text_get_point() is wrong by one. + gtk_text_set_point( GTK_TEXT(m_text), GTK_EDITABLE(m_text)->current_pos ); + + // if we have any special style, use it + if ( !m_defaultStyle.IsDefault() ) + { + GetInsertionPoint(); + + wxGtkTextInsert(m_text, m_defaultStyle, txt, txtlen); + } + else // no style + { + gint len = GTK_EDITABLE(m_text)->current_pos; + gtk_editable_insert_text( GTK_EDITABLE(m_text), txt, txtlen, &len ); + } + + // Bring editable's cursor back uptodate. + GTK_EDITABLE(m_text)->current_pos = gtk_text_get_point( GTK_TEXT(m_text) ); + } + else // single line + { + // This moves the cursor pos to behind the inserted text. + gint len = GTK_EDITABLE(m_text)->current_pos; + gtk_editable_insert_text( GTK_EDITABLE(m_text), txt, txtlen, &len ); -void wxTextCtrl::DiscardEdits(void) + // Bring editable's cursor uptodate. + GTK_EDITABLE(m_text)->current_pos += text.Len(); + + // Bring entry's cursor uptodate. + gtk_entry_set_position( GTK_ENTRY(m_text), GTK_EDITABLE(m_text)->current_pos ); + } + + m_modified = TRUE; +} + +void wxTextCtrl::AppendText( const wxString &text ) { - m_modified = FALSE; -}; + 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(wxT("")); + 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]; -void wxTextCtrl::OnDropFiles( wxDropFilesEvent &event ) + g_free( text ); + return buf; + } + else + { + return wxEmptyString; + } + } + else + { + if (lineNo == 0) return GetValue(); + return wxEmptyString; + } +} + +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.Len() ) + return FALSE; + + *x=0; // First Col + *y=0; // First Line -long wxTextCtrl::XYToPosition( long x, long y ) + 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; -int wxTextCtrl::GetNumberOfLines(void) + long pos=0; + for( int i=0; icurrent_pos = gtk_text_get_point( GTK_TEXT(m_text) ); + } + else + { + gtk_entry_set_position( GTK_ENTRY(m_text), (int)pos ); + + /* bring editable's cursor uptodate. bug in GTK. */ + + GTK_EDITABLE(m_text)->current_pos = (guint32)pos; + } +} + +void wxTextCtrl::SetInsertionPointEnd() { - 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; - 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 ); +} + +bool wxTextCtrl::Enable( bool enable ) +{ + if (!wxWindowBase::Enable(enable)) + { + // nothing to do + return FALSE; + } + + if (m_windowStyle & wxTE_MULTILINE) + { + gtk_text_set_editable( GTK_TEXT(m_text), enable ); + OnParentEnable(enable); + } + else + { + gtk_widget_set_sensitive( m_text, enable ); + } + + return TRUE; +} + +// wxGTK-specific: called recursively by Enable, +// to give widgets an oppprtunity to correct their colours after they +// have been changed by Enable +void wxTextCtrl::OnParentEnable( bool enable ) +{ + // 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.Ok()) + { + // Need to set twice or it'll optimize the useful stuff out + if (oldColour == * wxWHITE) + SetBackgroundColour(*wxBLACK); + else + SetBackgroundColour(*wxWHITE); + SetBackgroundColour(oldColour); + } +} + +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") ); + + if ( (m_windowStyle & wxTE_MULTILINE) && + !GTK_TEXT(m_text)->line_start_cache ) + { + // tell the programmer that it didn't work + wxLogDebug(_T("Can't call SetSelection() before realizing the control")); + return; + } + + gtk_editable_select_region( GTK_EDITABLE(m_text), (gint)from, (gint)to ); +} void wxTextCtrl::ShowPosition( long WXUNUSED(pos) ) { - wxFAIL_MSG("wxTextCtrl::ShowPosition not implemented"); -}; +// SetInsertionPoint( pos ); +} -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") ); -long wxTextCtrl::GetLastPosition(void) const + return (long) GTK_EDITABLE(m_text)->current_pos; +} + +long 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") ); + + gtk_editable_delete_text( GTK_EDITABLE(m_text), (gint)from, (gint)to ); + + if (!value.IsEmpty()) + { + 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 + } +} + +void wxTextCtrl::Cut() +{ + wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") ); + +#if (GTK_MINOR_VERSION > 0) + gtk_editable_cut_clipboard( GTK_EDITABLE(m_text) ); +#else + gtk_editable_cut_clipboard( GTK_EDITABLE(m_text), 0 ); +#endif +} + +void wxTextCtrl::Copy() +{ + wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") ); + +#if (GTK_MINOR_VERSION > 0) + gtk_editable_copy_clipboard( GTK_EDITABLE(m_text) ); +#else + gtk_editable_copy_clipboard( GTK_EDITABLE(m_text), 0 ); +#endif +} + +void wxTextCtrl::Paste() +{ + wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") ); + +#if (GTK_MINOR_VERSION > 0) + gtk_editable_paste_clipboard( GTK_EDITABLE(m_text) ); +#else + gtk_editable_paste_clipboard( GTK_EDITABLE(m_text), 0 ); +#endif +} + +// Undo/redo +void wxTextCtrl::Undo() +{ + // TODO + wxFAIL_MSG( wxT("wxTextCtrl::Undo not implemented") ); +} + +void wxTextCtrl::Redo() +{ + // TODO + wxFAIL_MSG( wxT("wxTextCtrl::Redo not implemented") ); +} + +bool wxTextCtrl::CanUndo() const +{ + // TODO + wxFAIL_MSG( wxT("wxTextCtrl::CanUndo not implemented") ); + return FALSE; +} + +bool wxTextCtrl::CanRedo() const +{ + // TODO + wxFAIL_MSG( wxT("wxTextCtrl::CanRedo not implemented") ); + return FALSE; +} + +// If the return values from and to are the same, there is no +// selection. +void wxTextCtrl::GetSelection(long* fromOut, long* toOut) const +{ + wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") ); + + long from, to; + if ( !(GTK_EDITABLE(m_text)->has_selection) ) + { + from = + to = GetInsertionPoint(); + } + else // got selection + { + from = (long) GTK_EDITABLE(m_text)->selection_start_pos; + to = (long) GTK_EDITABLE(m_text)->selection_end_pos; + + if ( from > to ) + { + // exchange them to be compatible with wxMSW + long tmp = from; + from = to; + to = tmp; + } + } + + if ( fromOut ) + *fromOut = from; + if ( toOut ) + *toOut = to; +} + +bool wxTextCtrl::IsEditable() const +{ + wxCHECK_MSG( m_text != NULL, FALSE, wxT("invalid text ctrl") ); + + return GTK_EDITABLE(m_text)->editable; +} + +bool wxTextCtrl::IsModified() const +{ + return m_modified; +} + +void wxTextCtrl::Clear() +{ + SetValue( wxT("") ); +} + +void wxTextCtrl::OnChar( wxKeyEvent &key_event ) +{ + wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") ); + + if ((key_event.KeyCode() == WXK_RETURN) && (m_windowStyle & wxPROCESS_ENTER)) + { + wxCommandEvent event(wxEVT_COMMAND_TEXT_ENTER, m_windowId); + event.SetEventObject(this); + event.SetString(GetValue()); + if (GetEventHandler()->ProcessEvent(event)) return; + } + + if ((key_event.KeyCode() == WXK_RETURN) && !(m_windowStyle & wxTE_MULTILINE)) + { + wxWindow *top_frame = m_parent; + while (top_frame->GetParent() && !(top_frame->IsTopLevel())) + top_frame = top_frame->GetParent(); + 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") ); -void wxTextCtrl::Cut(void) + if ( !wxWindowBase::SetFont(font) ) + { + // font didn't change, nothing to do + return FALSE; + } + + if ( m_windowStyle & wxTE_MULTILINE ) + { + m_updateFont = 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, + _T("shouldn't be called for single line controls") ); + + wxString value = GetValue(); + if ( !value.IsEmpty() ) + { + m_updateFont = FALSE; + + Clear(); + AppendText(value); + } +} + +void wxTextCtrl::UpdateFontIfNeeded() { - gtk_editable_cut_clipboard( GTK_EDITABLE(m_widget), 0 ); -}; + if ( m_updateFont ) + ChangeFontGlobally(); +} + +bool wxTextCtrl::SetForegroundColour(const wxColour& colour) +{ + if ( !wxControl::SetForegroundColour(colour) ) + return FALSE; + + // update default fg colour too + m_defaultStyle.SetTextColour(colour); -void wxTextCtrl::Copy(void) + return TRUE; +} + +bool wxTextCtrl::SetBackgroundColour( const wxColour &colour ) { - gtk_editable_copy_clipboard( GTK_EDITABLE(m_widget), 0 ); -}; + wxCHECK_MSG( m_text != NULL, FALSE, wxT("invalid text ctrl") ); + + if ( !wxControl::SetBackgroundColour( colour ) ) + return FALSE; + + if (!m_widget->window) + return FALSE; + + wxColour sysbg = wxSystemSettings::GetSystemColour( wxSYS_COLOUR_BTNFACE ); + if (sysbg.Red() == colour.Red() && + sysbg.Green() == colour.Green() && + sysbg.Blue() == colour.Blue()) + { + return FALSE; // FIXME or TRUE? + } -void wxTextCtrl::Paste(void) + if (!m_backgroundColour.Ok()) + 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 ) { - gtk_editable_paste_clipboard( GTK_EDITABLE(m_widget), 0 ); -}; + /* VERY dirty way to do that - removes the required text and re-adds it + with styling (FIXME) */ + if ( m_windowStyle & wxTE_MULTILINE ) + { + if ( style.IsDefault() ) + { + // nothing to do + return TRUE; + } + + gint l = gtk_text_get_length( GTK_TEXT(m_text) ); + + wxCHECK_MSG( start >= 0 && end <= l, FALSE, + _T("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); -void wxTextCtrl::Delete(void) + /* 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 // singe line + { + // cannot do this for GTK+'s Entry widget + return FALSE; + } +} + +void wxTextCtrl::ApplyWidgetStyle() { - SetValue( "" ); -}; + if (m_windowStyle & wxTE_MULTILINE) + { + // how ? + } + else + { + SetWidgetStyle(); + gtk_widget_set_style( m_text, m_widgetStyle ); + } +} -void wxTextCtrl::OnChar( wxKeyEvent &WXUNUSED(event) ) +void wxTextCtrl::OnCut(wxCommandEvent& WXUNUSED(event)) { -}; + Cut(); +} -int wxTextCtrl::overflow(int c) +void wxTextCtrl::OnCopy(wxCommandEvent& WXUNUSED(event)) { - 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; -}; + Copy(); +} -int wxTextCtrl::sync(void) +void wxTextCtrl::OnPaste(wxCommandEvent& WXUNUSED(event)) { - 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; -}; + Paste(); +} -int wxTextCtrl::underflow(void) +void wxTextCtrl::OnUndo(wxCommandEvent& WXUNUSED(event)) { - return EOF; -}; + Undo(); +} -wxTextCtrl& wxTextCtrl::operator<<(const wxString& s) +void wxTextCtrl::OnRedo(wxCommandEvent& WXUNUSED(event)) { - WriteText(s); - return *this; + Redo(); } -wxTextCtrl& wxTextCtrl::operator<<(float f) +void wxTextCtrl::OnUpdateCut(wxUpdateUIEvent& event) { - static char buf[100]; - sprintf(buf, "%.2f", f); - WriteText(buf); - return *this; + event.Enable( CanCut() ); } -wxTextCtrl& wxTextCtrl::operator<<(double d) +void wxTextCtrl::OnUpdateCopy(wxUpdateUIEvent& event) { - static char buf[100]; - sprintf(buf, "%.2f", d); - WriteText(buf); - return *this; + event.Enable( CanCopy() ); } -wxTextCtrl& wxTextCtrl::operator<<(int i) +void wxTextCtrl::OnUpdatePaste(wxUpdateUIEvent& event) { - static char buf[100]; - sprintf(buf, "%i", i); - WriteText(buf); - return *this; + event.Enable( CanPaste() ); } -wxTextCtrl& wxTextCtrl::operator<<(long i) +void wxTextCtrl::OnUpdateUndo(wxUpdateUIEvent& event) { - static char buf[100]; - sprintf(buf, "%ld", i); - WriteText(buf); - return *this; + event.Enable( CanUndo() ); +} + +void wxTextCtrl::OnUpdateRedo(wxUpdateUIEvent& event) +{ + event.Enable( CanRedo() ); +} + +void wxTextCtrl::OnInternalIdle() +{ + wxCursor cursor = m_cursor; + if (g_globalCursor.Ok()) cursor = g_globalCursor; + + if (cursor.Ok()) + { + GdkWindow *window = (GdkWindow*) 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.Ok()) + cursor = *wxSTANDARD_CURSOR; + + window = m_widget->window; + if ((window) && !(GTK_WIDGET_NO_WINDOW(m_widget))) + gdk_window_set_cursor( window, cursor.GetCursor() ); + } + + UpdateWindowUI(); +} + +wxSize wxTextCtrl::DoGetBestSize() const +{ + // FIXME should be different for multi-line controls... + wxSize ret( wxControl::DoGetBestSize() ); + return wxSize(80, ret.y); +} + +// ---------------------------------------------------------------------------- +// freeze/thaw +// ---------------------------------------------------------------------------- + +void wxTextCtrl::Freeze() +{ + if ( HasFlag(wxTE_MULTILINE) ) + { + gtk_text_freeze(GTK_TEXT(m_text)); + } +} + +void wxTextCtrl::Thaw() +{ + if ( HasFlag(wxTE_MULTILINE) ) + { + GTK_TEXT(m_text)->vadj->value = 0.0; + + gtk_text_thaw(GTK_TEXT(m_text)); + } +} + +// ---------------------------------------------------------------------------- +// scrolling +// ---------------------------------------------------------------------------- + +GtkAdjustment *wxTextCtrl::GetVAdj() const +{ + return HasFlag(wxTE_MULTILINE) ? GTK_TEXT(m_text)->vadj : NULL; +} + +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) + static const int KEY_SCROLL_PIXELS = 10; + + return DoScroll(adj, lines*KEY_SCROLL_PIXELS); } -wxTextCtrl& wxTextCtrl::operator<<(const char c) +bool wxTextCtrl::ScrollPages(int pages) { - char buf[2]; + GtkAdjustment *adj = GetVAdj(); + if ( !adj ) + return FALSE; - buf[0] = c; - buf[1] = 0; - WriteText(buf); - return *this; + return DoScroll(adj, (int)ceil(pages*adj->page_increment)); }