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wxWidgets/src/gtk/textctrl.cpp

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/////////////////////////////////////////////////////////////////////////////
// Name: src/gtk/textctrl.cpp
// Purpose:
// Author: Robert Roebling
// Id: $Id$
// Copyright: (c) 1998 Robert Roebling, Vadim Zeitlin, 2005 Mart Raudsepp
// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
// For compilers that support precompilation, includes "wx.h".
#include "wx/wxprec.h"
#include "wx/textctrl.h"
#ifndef WX_PRECOMP
#include "wx/intl.h"
#include "wx/log.h"
#include "wx/utils.h"
#include "wx/settings.h"
#include "wx/math.h"
#endif
#include "wx/strconv.h"
#include "wx/fontutil.h" // for wxNativeFontInfo (GetNativeFontInfo())
#include <sys/types.h>
#include <sys/stat.h>
#include <ctype.h>
#include "wx/gtk/private.h"
// ----------------------------------------------------------------------------
// helpers
// ----------------------------------------------------------------------------
extern "C" {
static void wxGtkOnRemoveTag(GtkTextBuffer *buffer,
GtkTextTag *tag,
GtkTextIter *start,
GtkTextIter *end,
char *prefix)
{
gchar *name;
g_object_get (tag, "name", &name, NULL);
if (!name || strncmp(name, prefix, strlen(prefix)))
// anonymous tag or not starting with prefix - don't remove
g_signal_stop_emission_by_name (buffer, "remove_tag");
g_free(name);
}
}
static void wxGtkTextApplyTagsFromAttr(GtkWidget *text,
GtkTextBuffer *text_buffer,
const wxTextAttr& attr,
GtkTextIter *start,
GtkTextIter *end)
{
static gchar buf[1024];
GtkTextTag *tag;
gulong remove_handler_id = g_signal_connect (text_buffer, "remove_tag",
G_CALLBACK (wxGtkOnRemoveTag), gpointer("WX"));
gtk_text_buffer_remove_all_tags(text_buffer, start, end);
g_signal_handler_disconnect (text_buffer, remove_handler_id);
if (attr.HasFont())
{
PangoFontDescription *font_description = attr.GetFont().GetNativeFontInfo()->description;
wxGtkString font_string(pango_font_description_to_string(font_description));
g_snprintf(buf, sizeof(buf), "WXFONT %s", font_string.c_str());
tag = gtk_text_tag_table_lookup( gtk_text_buffer_get_tag_table( text_buffer ),
buf );
if (!tag)
tag = gtk_text_buffer_create_tag( text_buffer, buf,
"font-desc", font_description,
NULL );
gtk_text_buffer_apply_tag (text_buffer, tag, start, end);
if (attr.GetFont().GetUnderlined())
{
g_snprintf(buf, sizeof(buf), "WXFONTUNDERLINE");
tag = gtk_text_tag_table_lookup( gtk_text_buffer_get_tag_table( text_buffer ),
buf );
if (!tag)
tag = gtk_text_buffer_create_tag( text_buffer, buf,
"underline-set", TRUE,
"underline", PANGO_UNDERLINE_SINGLE,
NULL );
gtk_text_buffer_apply_tag (text_buffer, tag, start, end);
}
}
if (attr.HasTextColour())
{
const GdkColor *colFg = attr.GetTextColour().GetColor();
g_snprintf(buf, sizeof(buf), "WXFORECOLOR %d %d %d",
colFg->red, colFg->green, colFg->blue);
tag = gtk_text_tag_table_lookup( gtk_text_buffer_get_tag_table( text_buffer ),
buf );
if (!tag)
tag = gtk_text_buffer_create_tag( text_buffer, buf,
"foreground-gdk", colFg, NULL );
gtk_text_buffer_apply_tag (text_buffer, tag, start, end);
}
if (attr.HasBackgroundColour())
{
const GdkColor *colBg = attr.GetBackgroundColour().GetColor();
g_snprintf(buf, sizeof(buf), "WXBACKCOLOR %d %d %d",
colBg->red, colBg->green, colBg->blue);
tag = gtk_text_tag_table_lookup( gtk_text_buffer_get_tag_table( text_buffer ),
buf );
if (!tag)
tag = gtk_text_buffer_create_tag( text_buffer, buf,
"background-gdk", colBg, NULL );
gtk_text_buffer_apply_tag (text_buffer, tag, start, end);
}
if (attr.HasAlignment())
{
GtkTextIter para_start, para_end = *end;
gtk_text_buffer_get_iter_at_line( text_buffer,
&para_start,
gtk_text_iter_get_line(start) );
gtk_text_iter_forward_line(&para_end);
remove_handler_id = g_signal_connect (text_buffer, "remove_tag",
G_CALLBACK(wxGtkOnRemoveTag),
gpointer("WXALIGNMENT"));
gtk_text_buffer_remove_all_tags( text_buffer, &para_start, &para_end );
g_signal_handler_disconnect (text_buffer, remove_handler_id);
GtkJustification align;
switch (attr.GetAlignment())
{
default:
align = GTK_JUSTIFY_LEFT;
break;
case wxTEXT_ALIGNMENT_RIGHT:
align = GTK_JUSTIFY_RIGHT;
break;
case wxTEXT_ALIGNMENT_CENTER:
align = GTK_JUSTIFY_CENTER;
break;
// gtk+ doesn't support justify before gtk+-2.11.0 with pango-1.17 being available
// (but if new enough pango isn't available it's a mere gtk warning)
#if GTK_CHECK_VERSION(2,11,0)
case wxTEXT_ALIGNMENT_JUSTIFIED:
if (!gtk_check_version(2,11,0))
align = GTK_JUSTIFY_FILL;
else
align = GTK_JUSTIFY_LEFT;
break;
#endif
}
g_snprintf(buf, sizeof(buf), "WXALIGNMENT %d", align);
tag = gtk_text_tag_table_lookup( gtk_text_buffer_get_tag_table( text_buffer ),
buf );
if (!tag)
tag = gtk_text_buffer_create_tag( text_buffer, buf,
"justification", align, NULL );
gtk_text_buffer_apply_tag( text_buffer, tag, &para_start, &para_end );
}
if (attr.HasLeftIndent())
{
// Indentation attribute
// Clear old indentation tags
GtkTextIter para_start, para_end = *end;
gtk_text_buffer_get_iter_at_line( text_buffer,
&para_start,
gtk_text_iter_get_line(start) );
gtk_text_iter_forward_line(&para_end);
remove_handler_id = g_signal_connect (text_buffer, "remove_tag",
G_CALLBACK(wxGtkOnRemoveTag),
gpointer("WXINDENT"));
gtk_text_buffer_remove_all_tags( text_buffer, &para_start, &para_end );
g_signal_handler_disconnect (text_buffer, remove_handler_id);
// Convert indent from 1/10th of a mm into pixels
float factor;
#if GTK_CHECK_VERSION(2,2,0)
if (!gtk_check_version(2,2,0))
factor = (float)gdk_screen_get_width(gtk_widget_get_screen(text)) /
gdk_screen_get_width_mm(gtk_widget_get_screen(text)) / 10;
else
#endif
factor = (float)gdk_screen_width() / gdk_screen_width_mm() / 10;
const int indent = (int)(factor * attr.GetLeftIndent());
const int subIndent = (int)(factor * attr.GetLeftSubIndent());
gint gindent;
gint gsubindent;
if (subIndent >= 0)
{
gindent = indent;
gsubindent = -subIndent;
}
else
{
gindent = -subIndent;
gsubindent = indent;
}
g_snprintf(buf, sizeof(buf), "WXINDENT %d %d", gindent, gsubindent);
tag = gtk_text_tag_table_lookup( gtk_text_buffer_get_tag_table( text_buffer ),
buf );
if (!tag)
tag = gtk_text_buffer_create_tag( text_buffer, buf,
"left-margin", gindent, "indent", gsubindent, NULL );
gtk_text_buffer_apply_tag (text_buffer, tag, &para_start, &para_end);
}
if (attr.HasTabs())
{
// Set tab stops
// Clear old tabs
GtkTextIter para_start, para_end = *end;
gtk_text_buffer_get_iter_at_line( text_buffer,
&para_start,
gtk_text_iter_get_line(start) );
gtk_text_iter_forward_line(&para_end);
remove_handler_id = g_signal_connect (text_buffer, "remove_tag",
G_CALLBACK(wxGtkOnRemoveTag),
gpointer("WXTABS"));
gtk_text_buffer_remove_all_tags( text_buffer, &para_start, &para_end );
g_signal_handler_disconnect (text_buffer, remove_handler_id);
const wxArrayInt& tabs = attr.GetTabs();
wxString tagname = _T("WXTABS");
g_snprintf(buf, sizeof(buf), "WXTABS");
for (size_t i = 0; i < tabs.GetCount(); i++)
tagname += wxString::Format(_T(" %d"), tabs[i]);
const wxWX2MBbuf buf = tagname.mb_str(wxConvUTF8);
tag = gtk_text_tag_table_lookup( gtk_text_buffer_get_tag_table( text_buffer ),
buf );
if (!tag)
{
// Factor to convert from 1/10th of a mm into pixels
float factor;
#if GTK_CHECK_VERSION(2,2,0)
if (!gtk_check_version(2,2,0))
factor = (float)gdk_screen_get_width(gtk_widget_get_screen(text)) /
gdk_screen_get_width_mm(gtk_widget_get_screen(text)) / 10;
else
#endif
factor = (float)gdk_screen_width() / gdk_screen_width_mm() / 10;
PangoTabArray* tabArray = pango_tab_array_new(tabs.GetCount(), TRUE);
for (size_t i = 0; i < tabs.GetCount(); i++)
pango_tab_array_set_tab(tabArray, i, PANGO_TAB_LEFT, (gint)(tabs[i] * factor));
tag = gtk_text_buffer_create_tag( text_buffer, buf,
"tabs", tabArray, NULL );
pango_tab_array_free(tabArray);
}
gtk_text_buffer_apply_tag (text_buffer, tag, &para_start, &para_end);
}
}
static void wxGtkTextInsert(GtkWidget *text,
GtkTextBuffer *text_buffer,
const wxTextAttr& attr,
const wxCharBuffer& buffer)
{
gint start_offset;
GtkTextIter iter, start;
gtk_text_buffer_get_iter_at_mark( text_buffer, &iter,
gtk_text_buffer_get_insert (text_buffer) );
start_offset = gtk_text_iter_get_offset (&iter);
gtk_text_buffer_insert( text_buffer, &iter, buffer, strlen(buffer) );
gtk_text_buffer_get_iter_at_offset (text_buffer, &start, start_offset);
wxGtkTextApplyTagsFromAttr(text, text_buffer, attr, &start, &iter);
}
// ----------------------------------------------------------------------------
// "insert_text" for GtkEntry
// ----------------------------------------------------------------------------
extern "C" {
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") );
// 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
g_signal_stop_emission_by_name (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 );
}
}
}
// Implementation of wxTE_AUTO_URL for wxGTK2 by Mart Raudsepp,
extern "C" {
static void
au_apply_tag_callback(GtkTextBuffer *buffer,
GtkTextTag *tag,
GtkTextIter *start,
GtkTextIter *end,
gpointer textctrl)
{
if(tag == gtk_text_tag_table_lookup(gtk_text_buffer_get_tag_table(buffer), "wxUrl"))
g_signal_stop_emission_by_name (buffer, "apply_tag");
}
}
//-----------------------------------------------------------------------------
// GtkTextCharPredicates for gtk_text_iter_*_find_char
//-----------------------------------------------------------------------------
extern "C" {
static gboolean
pred_whitespace (gunichar ch, gpointer user_data)
{
return g_unichar_isspace(ch);
}
}
extern "C" {
static gboolean
pred_non_whitespace (gunichar ch, gpointer user_data)
{
return !g_unichar_isspace(ch);
}
}
extern "C" {
static gboolean
pred_nonpunct (gunichar ch, gpointer user_data)
{
return !g_unichar_ispunct(ch);
}
}
extern "C" {
static gboolean
pred_nonpunct_or_slash (gunichar ch, gpointer user_data)
{
return !g_unichar_ispunct(ch) || ch == '/';
}
}
//-----------------------------------------------------------------------------
// Check for links between s and e and correct tags as necessary
//-----------------------------------------------------------------------------
// This function should be made match better while being efficient at one point.
// Most probably with a row of regular expressions.
extern "C" {
static void
au_check_word( GtkTextIter *s, GtkTextIter *e )
{
static const char *URIPrefixes[] =
{
"http://",
"ftp://",
"www.",
"ftp.",
"mailto://",
"https://",
"file://",
"nntp://",
"news://",
"telnet://",
"mms://",
"gopher://",
"prospero://",
"wais://",
};
GtkTextIter start = *s, end = *e;
GtkTextBuffer *buffer = gtk_text_iter_get_buffer(s);
// Get our special link tag
GtkTextTag *tag = gtk_text_tag_table_lookup(gtk_text_buffer_get_tag_table(buffer), "wxUrl");
// Get rid of punctuation from beginning and end.
// Might want to move this to au_check_range if an improved link checking doesn't
// use some intelligent punctuation checking itself (beware of undesired iter modifications).
if(g_unichar_ispunct( gtk_text_iter_get_char( &start ) ) )
gtk_text_iter_forward_find_char( &start, pred_nonpunct, NULL, e );
gtk_text_iter_backward_find_char( &end, pred_nonpunct_or_slash, NULL, &start );
gtk_text_iter_forward_char(&end);
wxGtkString text(gtk_text_iter_get_text( &start, &end ));
size_t len = strlen(text), prefix_len;
size_t n;
for( n = 0; n < WXSIZEOF(URIPrefixes); ++n )
{
prefix_len = strlen(URIPrefixes[n]);
if((len > prefix_len) && !strncasecmp(text, URIPrefixes[n], prefix_len))
break;
}
if(n < WXSIZEOF(URIPrefixes))
{
gulong signal_id = g_signal_handler_find (buffer,
(GSignalMatchType) (G_SIGNAL_MATCH_FUNC),
0, 0, NULL,
(gpointer)au_apply_tag_callback, NULL);
g_signal_handler_block (buffer, signal_id);
gtk_text_buffer_apply_tag(buffer, tag, &start, &end);
g_signal_handler_unblock (buffer, signal_id);
}
}
}
extern "C" {
static void
au_check_range(GtkTextIter *s,
GtkTextIter *range_end)
{
GtkTextIter range_start = *s;
GtkTextIter word_end;
GtkTextBuffer *buffer = gtk_text_iter_get_buffer(s);
GtkTextTag *tag = gtk_text_tag_table_lookup(gtk_text_buffer_get_tag_table(buffer), "wxUrl");
gtk_text_buffer_remove_tag(buffer, tag, s, range_end);
if(g_unichar_isspace(gtk_text_iter_get_char(&range_start)))
gtk_text_iter_forward_find_char(&range_start, pred_non_whitespace, NULL, range_end);
while(!gtk_text_iter_equal(&range_start, range_end))
{
word_end = range_start;
gtk_text_iter_forward_find_char(&word_end, pred_whitespace, NULL, range_end);
// Now we should have a word delimited by range_start and word_end, correct link tags
au_check_word(&range_start, &word_end);
range_start = word_end;
gtk_text_iter_forward_find_char(&range_start, pred_non_whitespace, NULL, range_end);
}
}
}
//-----------------------------------------------------------------------------
// "insert-text" for GtkTextBuffer
//-----------------------------------------------------------------------------
extern "C" {
static void
au_insert_text_callback(GtkTextBuffer *buffer,
GtkTextIter *end,
gchar *text,
gint len,
wxTextCtrl *win)
{
if (!len || !(win->GetWindowStyleFlag() & wxTE_AUTO_URL) )
return;
GtkTextIter start = *end;
gtk_text_iter_backward_chars(&start, g_utf8_strlen(text, len));
GtkTextIter line_start = start;
GtkTextIter line_end = *end;
GtkTextIter words_start = start;
GtkTextIter words_end = *end;
gtk_text_iter_set_line(&line_start, gtk_text_iter_get_line(&start));
gtk_text_iter_forward_to_line_end(&line_end);
gtk_text_iter_backward_find_char(&words_start, pred_whitespace, NULL, &line_start);
gtk_text_iter_forward_find_char(&words_end, pred_whitespace, NULL, &line_end);
au_check_range(&words_start, &words_end);
}
}
//-----------------------------------------------------------------------------
// "delete-range" for GtkTextBuffer
//-----------------------------------------------------------------------------
extern "C" {
static void
au_delete_range_callback(GtkTextBuffer *buffer,
GtkTextIter *start,
GtkTextIter *end,
wxTextCtrl *win)
{
if( !(win->GetWindowStyleFlag() & wxTE_AUTO_URL) )
return;
GtkTextIter line_start = *start, line_end = *end;
gtk_text_iter_set_line(&line_start, gtk_text_iter_get_line(start));
gtk_text_iter_forward_to_line_end(&line_end);
gtk_text_iter_backward_find_char(start, pred_whitespace, NULL, &line_start);
gtk_text_iter_forward_find_char(end, pred_whitespace, NULL, &line_end);
au_check_range(start, end);
}
}
//-----------------------------------------------------------------------------
// "changed"
//-----------------------------------------------------------------------------
extern "C" {
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();
if ( win->MarkDirtyOnChange() )
win->MarkDirty();
win->SendTextUpdatedEvent();
}
}
//-----------------------------------------------------------------------------
// clipboard events: "copy-clipboard", "cut-clipboard", "paste-clipboard"
//-----------------------------------------------------------------------------
// common part of the event handlers below
static void
handle_text_clipboard_callback( GtkWidget *widget, wxTextCtrl *win,
wxEventType eventType, const gchar * signal_name)
{
wxClipboardTextEvent event( eventType, win->GetId() );
event.SetEventObject( win );
if ( win->GetEventHandler()->ProcessEvent( event ) )
{
// don't let the default processing to take place if we did something
// ourselves in the event handler
g_signal_stop_emission_by_name (widget, signal_name);
}
}
extern "C" {
static void
gtk_copy_clipboard_callback( GtkWidget *widget, wxTextCtrl *win )
{
handle_text_clipboard_callback(
widget, win, wxEVT_COMMAND_TEXT_COPY, "copy-clipboard" );
}
static void
gtk_cut_clipboard_callback( GtkWidget *widget, wxTextCtrl *win )
{
handle_text_clipboard_callback(
widget, win, wxEVT_COMMAND_TEXT_CUT, "cut-clipboard" );
}
static void
gtk_paste_clipboard_callback( GtkWidget *widget, wxTextCtrl *win )
{
handle_text_clipboard_callback(
widget, win, wxEVT_COMMAND_TEXT_PASTE, "paste-clipboard" );
}
}
//-----------------------------------------------------------------------------
// "expose_event" from scrolled window and textview
//-----------------------------------------------------------------------------
extern "C" {
static gboolean
gtk_text_exposed_callback( GtkWidget *widget, GdkEventExpose *event, wxTextCtrl *win )
{
return TRUE;
}
}
//-----------------------------------------------------------------------------
// wxTextCtrl
//-----------------------------------------------------------------------------
IMPLEMENT_DYNAMIC_CLASS(wxTextCtrl, wxTextCtrlBase)
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)
// wxTE_AUTO_URL wxTextUrl support. Currently only creates
// wxTextUrlEvent in the same cases as wxMSW, more can be added here.
EVT_MOTION (wxTextCtrl::OnUrlMouseEvent)
EVT_LEFT_DOWN (wxTextCtrl::OnUrlMouseEvent)
EVT_LEFT_UP (wxTextCtrl::OnUrlMouseEvent)
EVT_LEFT_DCLICK (wxTextCtrl::OnUrlMouseEvent)
EVT_RIGHT_DOWN (wxTextCtrl::OnUrlMouseEvent)
EVT_RIGHT_UP (wxTextCtrl::OnUrlMouseEvent)
EVT_RIGHT_DCLICK(wxTextCtrl::OnUrlMouseEvent)
END_EVENT_TABLE()
void wxTextCtrl::Init()
{
m_dontMarkDirty =
m_modified = false;
m_countUpdatesToIgnore = 0;
SetUpdateFont(false);
m_text = NULL;
m_freezeCount = 0;
m_showPositionOnThaw = NULL;
m_gdkHandCursor = NULL;
m_gdkXTermCursor = NULL;
}
wxTextCtrl::~wxTextCtrl()
{
if(m_gdkHandCursor)
gdk_cursor_unref(m_gdkHandCursor);
if(m_gdkXTermCursor)
gdk_cursor_unref(m_gdkXTermCursor);
}
wxTextCtrl::wxTextCtrl( wxWindow *parent,
wxWindowID id,
const wxString &value,
const wxPoint &pos,
const wxSize &size,
long style,
const wxValidator& validator,
const wxString &name )
{
Init();
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 )
{
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;
}
bool multi_line = (style & wxTE_MULTILINE) != 0;
if (multi_line)
{
// Create view
m_text = gtk_text_view_new();
m_buffer = gtk_text_view_get_buffer( GTK_TEXT_VIEW(m_text) );
// create "ShowPosition" marker
GtkTextIter iter;
gtk_text_buffer_get_start_iter(m_buffer, &iter);
gtk_text_buffer_create_mark(m_buffer, "ShowPosition", &iter, true);
// create scrolled window
m_widget = gtk_scrolled_window_new( NULL, NULL );
gtk_scrolled_window_set_policy( GTK_SCROLLED_WINDOW( m_widget ),
GTK_POLICY_AUTOMATIC, GTK_POLICY_AUTOMATIC );
// for ScrollLines/Pages
m_scrollBar[1] = (GtkRange*)((GtkScrolledWindow*)m_widget)->vscrollbar;
// Insert view into scrolled window
gtk_container_add( GTK_CONTAINER(m_widget), m_text );
GTKSetWrapMode();
GtkScrolledWindowSetBorder(m_widget, style);
gtk_widget_add_events( GTK_WIDGET(m_text), GDK_ENTER_NOTIFY_MASK | GDK_LEAVE_NOTIFY_MASK );
GTK_WIDGET_UNSET_FLAGS( m_widget, GTK_CAN_FOCUS );
}
else
{
// a single-line text control: no need for scrollbars
m_widget =
m_text = gtk_entry_new();
// work around probable bug in GTK+ 2.18 when calling WriteText on a
// new, empty control, see http://trac.wxwidgets.org/ticket/11409
gtk_entry_get_text((GtkEntry*)m_text);
if (style & wxNO_BORDER)
g_object_set (m_text, "has-frame", FALSE, NULL);
}
m_parent->DoAddChild( this );
m_focusWidget = m_text;
PostCreation(size);
if (multi_line)
{
gtk_widget_show(m_text);
}
if (multi_line)
{
g_signal_connect (m_buffer, "changed",
G_CALLBACK (gtk_text_changed_callback), this);
}
else
{
g_signal_connect (m_text, "changed",
G_CALLBACK (gtk_text_changed_callback), this);
}
if (!value.empty())
{
DoSetValue( value, 0 );
}
if (style & wxTE_PASSWORD)
GTKSetVisibility();
if (style & wxTE_READONLY)
GTKSetEditable();
// left justification (alignment) is the default anyhow
if ( style & (wxTE_RIGHT | wxTE_CENTRE) )
GTKSetJustification();
if (multi_line)
{
// Handle URLs on multi-line controls with wxTE_AUTO_URL style
if (style & wxTE_AUTO_URL)
{
GtkTextIter start, end;
m_gdkHandCursor = gdk_cursor_new(GDK_HAND2);
m_gdkXTermCursor = gdk_cursor_new(GDK_XTERM);
// We create our wxUrl tag here for slight efficiency gain - we
// don't have to check for the tag existance in callbacks,
// hereby it's guaranteed to exist.
gtk_text_buffer_create_tag(m_buffer, "wxUrl",
"foreground", "blue",
"underline", PANGO_UNDERLINE_SINGLE,
NULL);
// Check for URLs after each text change
g_signal_connect_after (m_buffer, "insert_text",
G_CALLBACK (au_insert_text_callback), this);
g_signal_connect_after (m_buffer, "delete_range",
G_CALLBACK (au_delete_range_callback), this);
// Block all wxUrl tag applying unless we do it ourselves, in which case we
// block this callback temporarily. This takes care of gtk+ internal
// gtk_text_buffer_insert_range* calls that would copy our URL tag otherwise,
// which is undesired because only a part of the URL might be copied.
// The insert-text signal emitted inside it will take care of newly formed
// or wholly copied URLs.
g_signal_connect (m_buffer, "apply_tag",
G_CALLBACK (au_apply_tag_callback), NULL);
// Check for URLs in the initial string passed to Create
gtk_text_buffer_get_start_iter(m_buffer, &start);
gtk_text_buffer_get_end_iter(m_buffer, &end);
au_check_range(&start, &end);
}
}
g_signal_connect (m_text, "copy-clipboard",
G_CALLBACK (gtk_copy_clipboard_callback), this);
g_signal_connect (m_text, "cut-clipboard",
G_CALLBACK (gtk_cut_clipboard_callback), this);
g_signal_connect (m_text, "paste-clipboard",
G_CALLBACK (gtk_paste_clipboard_callback), this);
m_cursor = wxCursor( wxCURSOR_IBEAM );
wxTextAttr attrDef(GetForegroundColour(), GetBackgroundColour(), GetFont());
SetDefaultStyle( attrDef );
return true;
}
// ----------------------------------------------------------------------------
// flags handling
// ----------------------------------------------------------------------------
void wxTextCtrl::GTKSetEditable()
{
gboolean editable = !HasFlag(wxTE_READONLY);
if ( IsSingleLine() )
gtk_editable_set_editable(GTK_EDITABLE(m_text), editable);
else
gtk_text_view_set_editable(GTK_TEXT_VIEW(m_text), editable);
}
void wxTextCtrl::GTKSetVisibility()
{
// VZ: shouldn't we assert if wxTE_PASSWORD is set for multiline control?
if ( IsSingleLine() )
gtk_entry_set_visibility(GTK_ENTRY(m_text), !HasFlag(wxTE_PASSWORD));
}
void wxTextCtrl::GTKSetWrapMode()
{
// no wrapping in single line controls
if ( !IsMultiLine() )
return;
// translate wx wrapping style to GTK+
GtkWrapMode wrap;
if ( HasFlag( wxTE_DONTWRAP ) )
wrap = GTK_WRAP_NONE;
else if ( HasFlag( wxTE_CHARWRAP ) )
wrap = GTK_WRAP_CHAR;
else if ( HasFlag( wxTE_WORDWRAP ) )
wrap = GTK_WRAP_WORD;
else // HasFlag(wxTE_BESTWRAP) always true as wxTE_BESTWRAP == 0
{
// GTK_WRAP_WORD_CHAR seems to be new in GTK+ 2.4
#ifdef __WXGTK24__
if ( !gtk_check_version(2,4,0) )
{
wrap = GTK_WRAP_WORD_CHAR;
}
else
#endif // __WXGTK24__
wrap = GTK_WRAP_WORD;
}
gtk_text_view_set_wrap_mode( GTK_TEXT_VIEW( m_text ), wrap );
}
void wxTextCtrl::GTKSetJustification()
{
if ( IsMultiLine() )
{
GtkJustification just;
if ( HasFlag(wxTE_RIGHT) )
just = GTK_JUSTIFY_RIGHT;
else if ( HasFlag(wxTE_CENTRE) )
just = GTK_JUSTIFY_CENTER;
else // wxTE_LEFT == 0
just = GTK_JUSTIFY_LEFT;
gtk_text_view_set_justification(GTK_TEXT_VIEW(m_text), just);
}
else // single line
{
#ifdef __WXGTK24__
// gtk_entry_set_alignment was introduced in gtk+-2.3.5
if (!gtk_check_version(2,4,0))
{
gfloat align;
if ( HasFlag(wxTE_RIGHT) )
align = 1.0;
else if ( HasFlag(wxTE_CENTRE) )
align = 0.5;
else // single line
align = 0.0;
gtk_entry_set_alignment(GTK_ENTRY(m_text), align);
}
#endif // __WXGTK24__
}
}
void wxTextCtrl::SetWindowStyleFlag(long style)
{
long styleOld = GetWindowStyleFlag();
wxTextCtrlBase::SetWindowStyleFlag(style);
if ( (style & wxTE_READONLY) != (styleOld & wxTE_READONLY) )
GTKSetEditable();
if ( (style & wxTE_PASSWORD) != (styleOld & wxTE_PASSWORD) )
GTKSetVisibility();
static const long flagsWrap = wxTE_WORDWRAP | wxTE_CHARWRAP | wxTE_DONTWRAP;
if ( (style & flagsWrap) != (styleOld & flagsWrap) )
GTKSetWrapMode();
static const long flagsAlign = wxTE_LEFT | wxTE_CENTRE | wxTE_RIGHT;
if ( (style & flagsAlign) != (styleOld & flagsAlign) )
GTKSetJustification();
}
// ----------------------------------------------------------------------------
// control value
// ----------------------------------------------------------------------------
wxString wxTextCtrl::GetValue() const
{
wxCHECK_MSG( m_text != NULL, wxEmptyString, wxT("invalid text ctrl") );
wxString tmp;
if ( IsMultiLine() )
{
GtkTextIter start;
gtk_text_buffer_get_start_iter( m_buffer, &start );
GtkTextIter end;
gtk_text_buffer_get_end_iter( m_buffer, &end );
wxGtkString text(gtk_text_buffer_get_text(m_buffer, &start, &end, true));
const wxWxCharBuffer buf = wxGTK_CONV_BACK(text);
if ( buf )
tmp = buf;
}
else
{
const gchar *text = gtk_entry_get_text( GTK_ENTRY(m_text) );
const wxWxCharBuffer buf = wxGTK_CONV_BACK( text );
if ( buf )
tmp = buf;
}
return tmp;
}
wxFontEncoding wxTextCtrl::GetTextEncoding() const
{
// GTK+ uses UTF-8 internally, we need to convert to it but from which
// encoding?
// first check the default text style (we intentionally don't check the
// style for the current position as it doesn't make sense for SetValue())
const wxTextAttr& style = GetDefaultStyle();
wxFontEncoding enc = style.HasFont() ? style.GetFont().GetEncoding()
: wxFONTENCODING_SYSTEM;
// fall back to the controls font if no style
if ( enc == wxFONTENCODING_SYSTEM && m_hasFont )
enc = GetFont().GetEncoding();
return enc;
}
bool wxTextCtrl::IsEmpty() const
{
if ( IsMultiLine() )
return gtk_text_buffer_get_char_count(m_buffer) == 0;
return wxTextCtrlBase::IsEmpty();
}
void wxTextCtrl::DoSetValue( const wxString &value, int flags )
{
wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
m_modified = false;
const wxCharBuffer buffer(wxGTK_CONV_ENC(value, GetTextEncoding()));
if ( !buffer )
{
// see comment in WriteText() as to why we must warn the user about
// this
wxLogWarning(_("Failed to set text in the text control."));
return;
}
if ( IsMultiLine() )
{
g_signal_handlers_disconnect_by_func (m_buffer,
(gpointer) gtk_text_changed_callback, this);
gtk_text_buffer_set_text( m_buffer, buffer, strlen(buffer) );
g_signal_connect (m_buffer, "changed",
G_CALLBACK (gtk_text_changed_callback), this);
}
else
{
g_signal_handlers_disconnect_by_func (m_text,
(gpointer) gtk_text_changed_callback, this);
gtk_entry_set_text( GTK_ENTRY(m_text), buffer );
g_signal_connect (m_text, "changed",
G_CALLBACK (gtk_text_changed_callback), this);
}
// This was added after discussion on the list
SetInsertionPoint(0);
if (flags & SetValue_SendEvent)
SendTextUpdatedEvent();
}
void wxTextCtrl::WriteText( const wxString &text )
{
wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
if ( text.empty() )
return;
// check if we have a specific style for the current position
wxFontEncoding enc = wxFONTENCODING_SYSTEM;
wxTextAttr style;
if ( GetStyle(GetInsertionPoint(), style) && style.HasFont() )
{
enc = style.GetFont().GetEncoding();
}
if ( enc == wxFONTENCODING_SYSTEM )
enc = GetTextEncoding();
const wxCharBuffer buffer(wxGTK_CONV_ENC(text, enc));
if ( !buffer )
{
// we must log an error here as losing the text like this can be a
// serious problem (e.g. imagine the document edited by user being
// empty instead of containing the correct text)
wxLogWarning(_("Failed to insert text in the control."));
return;
}
// we're changing the text programmatically
DontMarkDirtyOnNextChange();
if ( IsMultiLine() )
{
// First remove the selection if there is one
// TODO: Is there an easier GTK specific way to do this?
long from, to;
GetSelection(&from, &to);
if (from != to)
Remove(from, to);
// Insert the text
wxGtkTextInsert( m_text, m_buffer, m_defaultStyle, buffer );
GtkAdjustment *adj = gtk_scrolled_window_get_vadjustment( GTK_SCROLLED_WINDOW(m_widget) );
// Scroll to cursor, but only if scrollbar thumb is at the very bottom
// won't work when frozen, text view is not using m_buffer then
if (!IsFrozen() && wxIsSameDouble(adj->value, adj->upper - adj->page_size))
{
gtk_text_view_scroll_to_mark( GTK_TEXT_VIEW(m_text),
gtk_text_buffer_get_insert( m_buffer ), 0.0, FALSE, 0.0, 1.0 );
}
}
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 = gtk_editable_get_position(GTK_EDITABLE(m_text));
gtk_editable_insert_text( GTK_EDITABLE(m_text), buffer, strlen(buffer), &len );
// Bring entry's cursor uptodate.
gtk_editable_set_position( GTK_EDITABLE(m_text), len );
}
}
void wxTextCtrl::AppendText( const wxString &text )
{
SetInsertionPointEnd();
WriteText( text );
}
wxString wxTextCtrl::GetLineText( long lineNo ) const
{
wxString result;
if ( IsMultiLine() )
{
GtkTextIter line;
gtk_text_buffer_get_iter_at_line(m_buffer,&line,lineNo);
GtkTextIter end = line;
// avoid skipping to the next line end if this one is empty
if ( !gtk_text_iter_ends_line(&line) )
gtk_text_iter_forward_to_line_end(&end);
wxGtkString text(gtk_text_buffer_get_text(m_buffer, &line, &end, true));
result = wxGTK_CONV_BACK(text);
}
else
{
if (lineNo == 0)
result = GetValue();
}
return result;
}
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") );
}
bool wxTextCtrl::PositionToXY(long pos, long *x, long *y ) const
{
if ( IsMultiLine() )
{
GtkTextIter iter;
if (pos > GetLastPosition())
return false;
gtk_text_buffer_get_iter_at_offset(m_buffer, &iter, pos);
if ( y )
*y = gtk_text_iter_get_line(&iter);
if ( x )
*x = gtk_text_iter_get_line_offset(&iter);
}
else // single line control
{
if ( pos <= GTK_ENTRY(m_text)->text_length )
{
if ( y )
*y = 0;
if ( x )
*x = pos;
}
else
{
// index out of bounds
return false;
}
}
return true;
}
long wxTextCtrl::XYToPosition(long x, long y ) const
{
if ( IsSingleLine() )
return 0;
GtkTextIter iter;
if (y >= gtk_text_buffer_get_line_count (m_buffer))
return -1;
gtk_text_buffer_get_iter_at_line(m_buffer, &iter, y);
if (x >= gtk_text_iter_get_chars_in_line (&iter))
return -1;
return gtk_text_iter_get_offset(&iter) + x;
}
int wxTextCtrl::GetLineLength(long lineNo) const
{
if ( IsMultiLine() )
{
int last_line = gtk_text_buffer_get_line_count( m_buffer ) - 1;
if (lineNo > last_line)
return -1;
GtkTextIter iter;
gtk_text_buffer_get_iter_at_line(m_buffer, &iter, lineNo);
// get_chars_in_line return includes paragraph delimiters, so need to subtract 1 IF it is not the last line
return gtk_text_iter_get_chars_in_line(&iter) - ((lineNo == last_line) ? 0 : 1);
}
else
{
wxString str = GetLineText (lineNo);
return (int) str.length();
}
}
int wxTextCtrl::GetNumberOfLines() const
{
if ( IsMultiLine() )
{
return gtk_text_buffer_get_line_count( m_buffer );
}
else // single line
{
return 1;
}
}
void wxTextCtrl::SetInsertionPoint( long pos )
{
wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
if ( IsMultiLine() )
{
GtkTextIter iter;
gtk_text_buffer_get_iter_at_offset( m_buffer, &iter, pos );
gtk_text_buffer_place_cursor( m_buffer, &iter );
GtkTextMark* mark = gtk_text_buffer_get_insert(m_buffer);
if (IsFrozen())
// defer until Thaw, text view is not using m_buffer now
m_showPositionOnThaw = mark;
else
gtk_text_view_scroll_mark_onscreen(GTK_TEXT_VIEW(m_text), mark);
}
else
{
// FIXME: Is the editable's cursor really uptodate without double set_position in GTK2?
gtk_editable_set_position(GTK_EDITABLE(m_text), int(pos));
}
}
void wxTextCtrl::SetInsertionPointEnd()
{
SetInsertionPoint(-1);
}
void wxTextCtrl::SetEditable( bool editable )
{
wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
if ( IsMultiLine() )
{
gtk_text_view_set_editable( GTK_TEXT_VIEW(m_text), editable );
}
else
{
gtk_editable_set_editable( GTK_EDITABLE(m_text), editable );
}
}
bool wxTextCtrl::Enable( bool enable )
{
if (!wxWindowBase::Enable(enable))
{
// nothing to do
return false;
}
gtk_widget_set_sensitive( m_text, enable );
SetCursor(enable ? wxCursor(wxCURSOR_IBEAM) : wxCursor());
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::MarkDirty()
{
m_modified = true;
}
void wxTextCtrl::DiscardEdits()
{
m_modified = false;
}
// ----------------------------------------------------------------------------
// max text length support
// ----------------------------------------------------------------------------
bool wxTextCtrl::IgnoreTextUpdate()
{
if ( m_countUpdatesToIgnore > 0 )
{
m_countUpdatesToIgnore--;
return true;
}
return false;
}
bool wxTextCtrl::MarkDirtyOnChange()
{
if ( m_dontMarkDirty )
{
m_dontMarkDirty = false;
return false;
}
return true;
}
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 )
{
g_signal_connect (m_text, "insert_text",
G_CALLBACK (gtk_insert_text_callback), this);
}
else // no checking
{
g_signal_handlers_disconnect_by_func (m_text,
(gpointer) gtk_insert_text_callback, this);
}
}
}
void wxTextCtrl::SetSelection( long from, long to )
{
wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
if (from == -1 && to == -1)
{
from = 0;
to = GetValue().length();
}
if ( IsMultiLine() )
{
GtkTextIter fromi, toi;
gtk_text_buffer_get_iter_at_offset( m_buffer, &fromi, from );
gtk_text_buffer_get_iter_at_offset( m_buffer, &toi, to );
gtk_text_buffer_place_cursor( m_buffer, &toi );
gtk_text_buffer_move_mark_by_name( m_buffer, "selection_bound", &fromi );
}
else
{
gtk_editable_select_region( GTK_EDITABLE(m_text), (gint)from, (gint)to );
}
}
void wxTextCtrl::ShowPosition( long pos )
{
if (IsMultiLine())
{
GtkTextIter iter;
gtk_text_buffer_get_iter_at_offset(m_buffer, &iter, int(pos));
GtkTextMark* mark = gtk_text_buffer_get_mark(m_buffer, "ShowPosition");
gtk_text_buffer_move_mark(m_buffer, mark, &iter);
if (IsFrozen())
// defer until Thaw, text view is not using m_buffer now
m_showPositionOnThaw = mark;
else
gtk_text_view_scroll_mark_onscreen(GTK_TEXT_VIEW(m_text), mark);
}
}
wxTextCtrlHitTestResult
wxTextCtrl::HitTest(const wxPoint& pt, long *pos) const
{
if ( !IsMultiLine() )
{
// not supported
return wxTE_HT_UNKNOWN;
}
int x, y;
gtk_text_view_window_to_buffer_coords
(
GTK_TEXT_VIEW(m_text),
GTK_TEXT_WINDOW_TEXT,
pt.x, pt.y,
&x, &y
);
GtkTextIter iter;
gtk_text_view_get_iter_at_location(GTK_TEXT_VIEW(m_text), &iter, x, y);
if ( pos )
*pos = gtk_text_iter_get_offset(&iter);
return wxTE_HT_ON_TEXT;
}
long wxTextCtrl::GetInsertionPoint() const
{
wxCHECK_MSG( m_text != NULL, 0, wxT("invalid text ctrl") );
if ( IsMultiLine() )
{
// There is no direct accessor for the cursor, but
// internally, the cursor is the "mark" called
// "insert" in the text view's btree structure.
GtkTextMark *mark = gtk_text_buffer_get_insert( m_buffer );
GtkTextIter cursor;
gtk_text_buffer_get_iter_at_mark( m_buffer, &cursor, mark );
return gtk_text_iter_get_offset( &cursor );
}
else
{
return (long) gtk_editable_get_position(GTK_EDITABLE(m_text));
}
}
wxTextPos wxTextCtrl::GetLastPosition() const
{
wxCHECK_MSG( m_text != NULL, 0, wxT("invalid text ctrl") );
int pos = 0;
if ( IsMultiLine() )
{
GtkTextIter end;
gtk_text_buffer_get_end_iter( m_buffer, &end );
pos = gtk_text_iter_get_offset( &end );
}
else
{
pos = GTK_ENTRY(m_text)->text_length;
}
return (long)pos;
}
void wxTextCtrl::Remove( long from, long to )
{
wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
if ( IsMultiLine() )
{
GtkTextIter fromi, toi;
gtk_text_buffer_get_iter_at_offset( m_buffer, &fromi, from );
gtk_text_buffer_get_iter_at_offset( m_buffer, &toi, to );
gtk_text_buffer_delete( m_buffer, &fromi, &toi );
}
else // single line
gtk_editable_delete_text( GTK_EDITABLE(m_text), (gint)from, (gint)to );
}
void wxTextCtrl::Replace( long from, long to, const wxString &value )
{
wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
Remove( from, to );
if (!value.empty())
{
SetInsertionPoint( from );
WriteText( value );
}
}
void wxTextCtrl::Cut()
{
wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
if ( IsMultiLine() )
g_signal_emit_by_name (m_text, "cut-clipboard");
else
gtk_editable_cut_clipboard(GTK_EDITABLE(m_text));
}
void wxTextCtrl::Copy()
{
wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
if ( IsMultiLine() )
g_signal_emit_by_name (m_text, "copy-clipboard");
else
gtk_editable_copy_clipboard(GTK_EDITABLE(m_text));
}
void wxTextCtrl::Paste()
{
wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
if ( IsMultiLine() )
g_signal_emit_by_name (m_text, "paste-clipboard");
else
gtk_editable_paste_clipboard(GTK_EDITABLE(m_text));
}
// 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") );
gint from = -1;
gint to = -1;
bool haveSelection = false;
if ( IsMultiLine() )
{
GtkTextIter ifrom, ito;
if ( gtk_text_buffer_get_selection_bounds(m_buffer, &ifrom, &ito) )
{
haveSelection = true;
from = gtk_text_iter_get_offset(&ifrom);
to = gtk_text_iter_get_offset(&ito);
}
}
else // not multi-line
{
if ( gtk_editable_get_selection_bounds( GTK_EDITABLE(m_text),
&from, &to) )
{
haveSelection = true;
}
}
if (! haveSelection )
from = to = GetInsertionPoint();
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
{
wxCHECK_MSG( m_text != NULL, false, wxT("invalid text ctrl") );
if ( IsMultiLine() )
{
return gtk_text_view_get_editable(GTK_TEXT_VIEW(m_text));
}
else
{
return gtk_editable_get_editable(GTK_EDITABLE(m_text));
}
}
bool wxTextCtrl::IsModified() const
{
return m_modified;
}
void wxTextCtrl::Clear()
{
SetValue( wxEmptyString );
}
void wxTextCtrl::OnChar( wxKeyEvent &key_event )
{
wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
if ( key_event.GetKeyCode() == WXK_RETURN )
{
if ( HasFlag(wxTE_PROCESS_ENTER) )
{
wxCommandEvent event(wxEVT_COMMAND_TEXT_ENTER, m_windowId);
event.SetEventObject(this);
event.SetString(GetValue());
if ( GetEventHandler()->ProcessEvent(event) )
return;
}
// FIXME: this is not the right place to do it, wxDialog::OnCharHook()
// probably is
if ( IsSingleLine() )
{
// 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);
}
GdkWindow *wxTextCtrl::GTKGetWindow(wxArrayGdkWindows& WXUNUSED(windows)) const
{
if ( IsMultiLine() )
{
return gtk_text_view_get_window(GTK_TEXT_VIEW(m_text),
GTK_TEXT_WINDOW_TEXT );
}
else
{
return 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 ( IsMultiLine() )
{
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!
//
// TODO: it can be implemented much more efficiently for GTK2
wxASSERT_MSG( IsMultiLine(),
_T("shouldn't be called for single line controls") );
wxString value = GetValue();
if ( !value.empty() )
{
SetUpdateFont(false);
Clear();
AppendText(value);
}
}
bool wxTextCtrl::SetForegroundColour(const wxColour& colour)
{
if ( !wxControl::SetForegroundColour(colour) )
return false;
// update default fg colour too
m_defaultStyle.SetTextColour(colour);
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_backgroundColour.Ok())
return false;
// change active background color too
m_defaultStyle.SetBackgroundColour( colour );
return true;
}
bool wxTextCtrl::SetStyle( long start, long end, const wxTextAttr& style )
{
if ( IsMultiLine() )
{
if ( style.IsDefault() )
{
// nothing to do
return true;
}
gint l = gtk_text_buffer_get_char_count( m_buffer );
wxCHECK_MSG( start >= 0 && end <= l, false,
_T("invalid range in wxTextCtrl::SetStyle") );
GtkTextIter starti, endi;
gtk_text_buffer_get_iter_at_offset( m_buffer, &starti, start );
gtk_text_buffer_get_iter_at_offset( m_buffer, &endi, end );
// 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
wxTextAttr attr = wxTextAttr::Combine(style, m_defaultStyle, this);
wxGtkTextApplyTagsFromAttr( m_widget, m_buffer, attr, &starti, &endi );
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() );
}
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::Freeze()
{
wxCHECK_RET(m_text != NULL, wxT("invalid text ctrl"));
if ( HasFlag(wxTE_MULTILINE) )
{
if (m_freezeCount++ == 0)
{
// freeze textview updates and remove buffer
g_signal_connect (m_text, "expose_event",
G_CALLBACK (gtk_text_exposed_callback), this);
g_signal_connect (m_widget, "expose_event",
G_CALLBACK (gtk_text_exposed_callback), this);
gtk_widget_set_sensitive(m_widget, false);
g_object_ref(m_buffer);
GtkTextBuffer* buf_new = gtk_text_buffer_new(NULL);
GtkTextMark* mark = GTK_TEXT_VIEW(m_text)->first_para_mark;
gtk_text_view_set_buffer(GTK_TEXT_VIEW(m_text), buf_new);
// gtk_text_view_set_buffer adds its own reference
g_object_unref(buf_new);
// This mark should be deleted when the buffer is changed,
// but it's not (in GTK+ up to at least 2.10.6).
// Otherwise these anonymous marks start to build up in the buffer,
// and Freeze takes longer and longer each time it is called.
if (GTK_IS_TEXT_MARK(mark) && !gtk_text_mark_get_deleted(mark))
gtk_text_buffer_delete_mark(m_buffer, mark);
}
}
}
void wxTextCtrl::Thaw()
{
if ( HasFlag(wxTE_MULTILINE) )
{
wxCHECK_RET(m_freezeCount != 0, _T("Thaw() without matching Freeze()"));
if (--m_freezeCount == 0)
{
// Reattach buffer and thaw textview updates
gtk_text_view_set_buffer(GTK_TEXT_VIEW(m_text), m_buffer);
g_object_unref(m_buffer);
gtk_widget_set_sensitive(m_widget, true);
g_signal_handlers_disconnect_by_func (m_widget,
(gpointer) gtk_text_exposed_callback, this);
g_signal_handlers_disconnect_by_func (m_text,
(gpointer) gtk_text_exposed_callback, this);
if (m_showPositionOnThaw != NULL)
{
gtk_text_view_scroll_mark_onscreen(
GTK_TEXT_VIEW(m_text), m_showPositionOnThaw);
m_showPositionOnThaw = NULL;
}
}
}
}
// ----------------------------------------------------------------------------
// wxTextUrlEvent passing if style & wxTE_AUTO_URL
// ----------------------------------------------------------------------------
// FIXME: when dragging on a link the sample gets an "Unknown event".
// This might be an excessive event from us or a buggy wxMouseEvent::Moving() or
// a buggy sample, or something else
void wxTextCtrl::OnUrlMouseEvent(wxMouseEvent& event)
{
event.Skip();
if( !HasFlag(wxTE_AUTO_URL) )
return;
gint x, y;
GtkTextIter start, end;
GtkTextTag *tag = gtk_text_tag_table_lookup(gtk_text_buffer_get_tag_table(m_buffer),
"wxUrl");
gtk_text_view_window_to_buffer_coords(GTK_TEXT_VIEW(m_text), GTK_TEXT_WINDOW_WIDGET,
event.GetX(), event.GetY(), &x, &y);
gtk_text_view_get_iter_at_location(GTK_TEXT_VIEW(m_text), &end, x, y);
if (!gtk_text_iter_has_tag(&end, tag))
{
gdk_window_set_cursor(gtk_text_view_get_window(GTK_TEXT_VIEW(m_text),
GTK_TEXT_WINDOW_TEXT), m_gdkXTermCursor);
return;
}
gdk_window_set_cursor(gtk_text_view_get_window(GTK_TEXT_VIEW(m_text),
GTK_TEXT_WINDOW_TEXT), m_gdkHandCursor);
start = end;
if(!gtk_text_iter_begins_tag(&start, tag))
gtk_text_iter_backward_to_tag_toggle(&start, tag);
if(!gtk_text_iter_ends_tag(&end, tag))
gtk_text_iter_forward_to_tag_toggle(&end, tag);
// Native context menu is probably not desired on an URL.
// Consider making this dependant on ProcessEvent(wxTextUrlEvent) return value
if(event.GetEventType() == wxEVT_RIGHT_DOWN)
event.Skip(false);
wxTextUrlEvent url_event(m_windowId, event,
gtk_text_iter_get_offset(&start),
gtk_text_iter_get_offset(&end));
InitCommandEvent(url_event);
// Is that a good idea? Seems not (pleasure with gtk_text_view_start_selection_drag)
//event.Skip(!GetEventHandler()->ProcessEvent(url_event));
GetEventHandler()->ProcessEvent(url_event);
}
bool wxTextCtrl::GTKProcessEvent(wxEvent& event) const
{
bool rc = wxTextCtrlBase::GTKProcessEvent(event);
// GtkTextView starts a drag operation when left mouse button is pressed
// and ends it when it is released and if it doesn't get the release event
// the next click on a control results in an assertion failure inside
// gtk_text_view_start_selection_drag() which simply *kills* the program
// without anything we can do about it, so always let GTK+ have this event
return rc && (IsSingleLine() || event.GetEventType() != wxEVT_LEFT_UP);
}
// static
wxVisualAttributes
wxTextCtrl::GetClassDefaultAttributes(wxWindowVariant WXUNUSED(variant))
{
return GetDefaultAttributesFromGTKWidget(gtk_entry_new, true);
}
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