#include <sys/types.h>
#include <sys/stat.h>
#include <ctype.h>
+#include <math.h> // for fabs
#include "gdk/gdk.h"
#include "gtk/gtk.h"
extern bool g_blockEventsOnDrag;
extern wxCursor g_globalCursor;
+// ----------------------------------------------------------------------------
+// "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") );
+
+ // 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 *WXUNUSED(widget), wxTextCtrl *win )
{
+ if ( win->IgnoreTextUpdate() )
+ return;
+
if (!win->m_hasVMT) return;
if (g_isIdle)
win->UpdateFontIfNeeded();
wxCommandEvent event( wxEVT_COMMAND_TEXT_UPDATED, win->GetId() );
- event.SetString( win->GetValue() );
event.SetEventObject( win );
+ event.SetString( win->GetValue() );
win->GetEventHandler()->ProcessEvent( event );
}
win->CalculateScrollbar();
}
-//-----------------------------------------------------------------------------
-// "focus_in_event"
-//-----------------------------------------------------------------------------
-
-extern wxWindow *g_focusWindow;
-extern bool g_blockEventsOnDrag;
-// extern bool g_isIdle;
-
-static gint gtk_text_focus_in_callback( GtkWidget *widget, GdkEvent *WXUNUSED(event), wxWindow *win )
-{
- // Necessary?
-#if 0
- if (g_isIdle)
- wxapp_install_idle_handler();
-#endif
- if (!win->m_hasVMT) return FALSE;
- if (g_blockEventsOnDrag) return FALSE;
-
- g_focusWindow = win;
-
- wxPanel *panel = wxDynamicCast(win->GetParent(), wxPanel);
- if (panel)
- {
- panel->SetLastFocus(win);
- }
-
-#ifdef HAVE_XIM
- if (win->m_ic)
- gdk_im_begin(win->m_ic, win->m_wxwindow->window);
-#endif
-
-#if 0
-#ifdef wxUSE_CARET
- // caret needs to be informed about focus change
- wxCaret *caret = win->GetCaret();
- if ( caret )
- {
- caret->OnSetFocus();
- }
-#endif // wxUSE_CARET
-#endif
-
- wxFocusEvent event( wxEVT_SET_FOCUS, win->GetId() );
- event.SetEventObject( win );
-
- if (win->GetEventHandler()->ProcessEvent( event ))
- {
- gtk_signal_emit_stop_by_name( GTK_OBJECT(widget), "focus_in_event" );
- return TRUE;
- }
-
- return FALSE;
-}
-
-//-----------------------------------------------------------------------------
-// "focus_out_event"
-//-----------------------------------------------------------------------------
-
-static gint gtk_text_focus_out_callback( GtkWidget *widget, GdkEvent *WXUNUSED(event), wxWindow *win )
-{
-#if 0
- if (g_isIdle)
- wxapp_install_idle_handler();
-#endif
-
- if (!win->m_hasVMT) return FALSE;
- if (g_blockEventsOnDrag) return FALSE;
-
-#if 0
- // if the focus goes out of our app alltogether, OnIdle() will send
- // wxActivateEvent, otherwise gtk_window_focus_in_callback() will reset
- // g_sendActivateEvent to -1
- g_sendActivateEvent = 0;
-#endif
-
- wxWindow *winFocus = wxFindFocusedChild(win);
- if ( winFocus )
- win = winFocus;
-
- g_focusWindow = (wxWindow *)NULL;
-
-#ifdef HAVE_XIM
- if (win->m_ic)
- gdk_im_end();
-#endif
-
-#if 0
-#ifdef wxUSE_CARET
- // caret needs to be informed about focus change
- wxCaret *caret = win->GetCaret();
- if ( caret )
- {
- caret->OnKillFocus();
- }
-#endif // wxUSE_CARET
-#endif
-
- wxFocusEvent event( wxEVT_KILL_FOCUS, win->GetId() );
- event.SetEventObject( win );
-
- if (win->GetEventHandler()->ProcessEvent( event ))
- {
- gtk_signal_emit_stop_by_name( GTK_OBJECT(widget), "focus_out_event" );
- return TRUE;
- }
-
- return FALSE;
-}
-
//-----------------------------------------------------------------------------
// wxTextCtrl
//-----------------------------------------------------------------------------
void wxTextCtrl::Init()
{
+ m_ignoreNextUpdate =
m_modified = FALSE;
m_updateFont = FALSE;
m_text =
}
m_parent->DoAddChild( this );
+
+ m_focusWidget = m_text;
PostCreation();
{
gtk_signal_connect(GTK_OBJECT(GTK_TEXT(m_text)->vadj), "changed",
(GtkSignalFunc) gtk_scrollbar_changed_callback, (gpointer) this );
-
- gtk_signal_connect( GTK_OBJECT(GTK_TEXT(m_text)), "focus_in_event",
- GTK_SIGNAL_FUNC(gtk_text_focus_in_callback), (gpointer)this );
-
- gtk_signal_connect( GTK_OBJECT(GTK_TEXT(m_text)), "focus_out_event",
- GTK_SIGNAL_FUNC(gtk_text_focus_out_callback), (gpointer)this );
- }
- else
- {
- gtk_signal_connect( GTK_OBJECT(m_text), "focus_in_event",
- GTK_SIGNAL_FUNC(gtk_text_focus_in_callback), (gpointer)this );
-
- gtk_signal_connect( GTK_OBJECT(m_text), "focus_out_event",
- GTK_SIGNAL_FUNC(gtk_text_focus_out_callback), (gpointer)this );
}
if (!value.IsEmpty())
m_cursor = wxCursor( wxCURSOR_IBEAM );
- // FIXME: is the bg colour correct here?
- wxTextAttr attrDef( colFg,
- wxSystemSettings::GetSystemColour(wxSYS_COLOUR_WINDOW),
- parent->GetFont() );
+ wxTextAttr attrDef( colFg, m_backgroundColour, parent->GetFont() );
SetDefaultStyle( attrDef );
Show( TRUE );
{
if ( !m_defaultStyle.IsDefault() )
{
- GdkFont *font = m_defaultStyle.HasFont()
- ? m_defaultStyle.GetFont().GetInternalFont()
- : NULL;
+ wxFont font = m_defaultStyle.HasFont() ? m_defaultStyle.GetFont()
+ : m_font;
+ GdkFont *fnt = font.Ok() ? font.GetInternalFont() : NULL;
- GdkColor *colFg = m_defaultStyle.HasTextColour()
- ? m_defaultStyle.GetTextColour().GetColor()
- : NULL;
+ wxColour col = m_defaultStyle.HasTextColour()
+ ? m_defaultStyle.GetTextColour()
+ : m_foregroundColour;
+ GdkColor *colFg = col.Ok() ? col.GetColor() : NULL;
- GdkColor *colBg = m_defaultStyle.HasBackgroundColour()
- ? m_defaultStyle.GetBackgroundColour().GetColor()
- : NULL;
+ col = m_defaultStyle.HasBackgroundColour()
+ ? m_defaultStyle.GetBackgroundColour()
+ : m_backgroundColour;
+ GdkColor *colBg = col.Ok() ? col.GetColor() : NULL;
- gtk_text_insert( GTK_TEXT(m_text), font, colFg, colBg, txt, txtlen );
+ gtk_text_insert( GTK_TEXT(m_text), fnt, colFg, colBg, txt, txtlen );
}
else // no style
{
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 )
{
wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
{
m_updateFont = TRUE;
+ m_defaultStyle.SetFont(font);
+
ChangeFontGlobally();
}
wxString value = GetValue();
if ( !value.IsEmpty() )
{
+ m_updateFont = FALSE;
+
Clear();
AppendText(value);
-
- m_updateFont = FALSE;
}
}
{
wxCHECK_MSG( m_text != NULL, FALSE, wxT("invalid text ctrl") );
- wxControl::SetBackgroundColour( colour );
+ if ( !wxControl::SetBackgroundColour( colour ) )
+ return FALSE;
if (!m_widget->window)
return FALSE;
return wxSize(80, ret.y);
}
+// ----------------------------------------------------------------------------
+// freeze/thaw
+// ----------------------------------------------------------------------------
+
void wxTextCtrl::Freeze()
{
if ( HasFlag(wxTE_MULTILINE) )
{
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);
+}
+
+bool wxTextCtrl::ScrollPages(int pages)
+{
+ GtkAdjustment *adj = GetVAdj();
+ if ( !adj )
+ return FALSE;
+
+ return DoScroll(adj, (int)ceil(pages*adj->page_increment));
+}
+
projects / wxWidgets.git / blobdiff