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gtk2/gtk/gtkeditable.c
Owen Taylor 4851efe296 configure.in acheader.h gdk/gdkwindow.c Check for Shape extension both on 
Sun May  3 13:38:22 1998  Owen Taylor  <otaylor@gtk.org>

	* configure.in acheader.h gdk/gdkwindow.c
	Check for Shape extension both on the client and server
	side. (And, more importantly, check for the shape extension
	so we may include -lXext even when compiling with --disable-xshm)

	Don't set override_redirect on all shaped windows. It isn't
	necessary.

	* gdk/gdkwindow.c: Set ->colormap to NULL for root
	and foreign windows. Use this to check if we
	need to get the colormap from X.

Fri May  1 22:32:47 1998  Owen Taylor  <otaylor@gtk.org>

	* gtk/gtkbutton.c (gtk_button_paint): Draw the areas
	between the default and the button always in GTK_STATE_NORMAL.

	* gtk/gtkrange.c (gtk_range_style_set): Added a style_set
	callback.

Fri May  1 16:40:57 1998  Owen Taylor  <otaylor@gtk.org>

	* gdk/gdkpixmap.c (gdk_pixmap_colormap_create_from_xpmp[_d]):
	  Fix a buffer overflow on pixmaps that claim to have
	  more than 31 characters per pixel.

	  (gdk_pixmap_read_string): Don't wrap around strings longer
 	  than half of address space ;-)

	* gtk/gtk[vh]ruler.c gtk/gtkinputdialog.c: Expand some buffers
	that were used for printing integers.

	* */* (almost):

	Style: All
	  int foo () { ... }
	changed to
	  int foo (void) { ... }

^^^^^^^ This is why some many files changed

	Even where there were proper prototypes elsewhere.

	* gdk/gxid.c (handle_claim_device): Some extra checks.
	It isn't safe against being fed bad X id's, but at
	least it should be safe against deleting all your
	files.
1998-05-03 22:41:32 +00:00

576 lines
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/* GTK - The GIMP Toolkit
* Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#include <ctype.h>
#include <string.h>
#ifdef USE_XIM
#include "gdk/gdkx.h"
#endif
#include "gdk/gdkkeysyms.h"
#include "gdk/gdki18n.h"
#include "gtkeditable.h"
#include "gtkmain.h"
#include "gtkselection.h"
#include "gtksignal.h"
#define MIN_EDITABLE_WIDTH 150
#define DRAW_TIMEOUT 20
#define INNER_BORDER 2
enum {
ACTIVATE,
CHANGED,
LAST_SIGNAL
};
static void gtk_editable_class_init (GtkEditableClass *klass);
static void gtk_editable_init (GtkEditable *editable);
static void gtk_editable_finalize (GtkObject *object);
static gint gtk_editable_selection_clear (GtkWidget *widget,
GdkEventSelection *event);
static void gtk_editable_selection_handler (GtkWidget *widget,
GtkSelectionData *selection_data,
gpointer data);
static void gtk_editable_selection_received (GtkWidget *widget,
GtkSelectionData *selection_data);
static void gtk_editable_set_selection (GtkEditable *editable,
gint start,
gint end);
static GtkWidgetClass *parent_class = NULL;
static guint editable_signals[LAST_SIGNAL] = { 0 };
static GdkAtom ctext_atom = GDK_NONE;
static GdkAtom text_atom = GDK_NONE;
static GdkAtom clipboard_atom = GDK_NONE;
guint
gtk_editable_get_type (void)
{
static guint editable_type = 0;
if (!editable_type)
{
GtkTypeInfo editable_info =
{
"GtkEditable",
sizeof (GtkEditable),
sizeof (GtkEditableClass),
(GtkClassInitFunc) gtk_editable_class_init,
(GtkObjectInitFunc) gtk_editable_init,
(GtkArgSetFunc) NULL,
(GtkArgGetFunc) NULL,
};
editable_type = gtk_type_unique (gtk_widget_get_type (), &editable_info);
}
return editable_type;
}
static void
gtk_editable_class_init (GtkEditableClass *class)
{
GtkObjectClass *object_class;
GtkWidgetClass *widget_class;
object_class = (GtkObjectClass*) class;
widget_class = (GtkWidgetClass*) class;
parent_class = gtk_type_class (gtk_widget_get_type ());
editable_signals[ACTIVATE] =
gtk_signal_new ("activate",
GTK_RUN_LAST,
object_class->type,
GTK_SIGNAL_OFFSET (GtkEditableClass, activate),
gtk_signal_default_marshaller,
GTK_TYPE_NONE, 0);
editable_signals[CHANGED] =
gtk_signal_new ("changed",
GTK_RUN_LAST,
object_class->type,
GTK_SIGNAL_OFFSET (GtkEditableClass, changed),
gtk_signal_default_marshaller,
GTK_TYPE_NONE, 0);
gtk_object_class_add_signals (object_class, editable_signals, LAST_SIGNAL);
object_class->finalize = gtk_editable_finalize;
widget_class->selection_clear_event = gtk_editable_selection_clear;
widget_class->selection_received = gtk_editable_selection_received;
class->insert_text = NULL;
class->delete_text = NULL;
class->update_text = NULL;
class->get_chars = NULL;
class->set_selection = NULL;
class->changed = NULL;
}
static void
gtk_editable_init (GtkEditable *editable)
{
GTK_WIDGET_SET_FLAGS (editable, GTK_CAN_FOCUS);
editable->selection_start_pos = 0;
editable->selection_end_pos = 0;
editable->has_selection = FALSE;
editable->editable = 1;
editable->clipboard_text = NULL;
#ifdef USE_XIM
editable->ic = NULL;
#endif
if (!clipboard_atom)
clipboard_atom = gdk_atom_intern ("CLIPBOARD", FALSE);
gtk_selection_add_handler (GTK_WIDGET(editable), GDK_SELECTION_PRIMARY,
GDK_TARGET_STRING, gtk_editable_selection_handler,
NULL);
gtk_selection_add_handler (GTK_WIDGET(editable), clipboard_atom,
GDK_TARGET_STRING, gtk_editable_selection_handler,
NULL);
if (!text_atom)
text_atom = gdk_atom_intern ("TEXT", FALSE);
gtk_selection_add_handler (GTK_WIDGET(editable), GDK_SELECTION_PRIMARY,
text_atom,
gtk_editable_selection_handler,
NULL);
gtk_selection_add_handler (GTK_WIDGET(editable), clipboard_atom,
text_atom,
gtk_editable_selection_handler,
NULL);
if (!ctext_atom)
ctext_atom = gdk_atom_intern ("COMPOUND_TEXT", FALSE);
gtk_selection_add_handler (GTK_WIDGET(editable), GDK_SELECTION_PRIMARY,
ctext_atom,
gtk_editable_selection_handler,
NULL);
gtk_selection_add_handler (GTK_WIDGET(editable), clipboard_atom,
ctext_atom,
gtk_editable_selection_handler,
NULL);
}
static void
gtk_editable_finalize (GtkObject *object)
{
GtkEditable *editable;
g_return_if_fail (object != NULL);
g_return_if_fail (GTK_IS_EDITABLE (object));
editable = GTK_EDITABLE (object);
#ifdef USE_XIM
if (editable->ic)
{
gdk_ic_destroy (editable->ic);
editable->ic = NULL;
}
#endif
(* GTK_OBJECT_CLASS (parent_class)->finalize) (object);
}
void
gtk_editable_insert_text (GtkEditable *editable,
const gchar *new_text,
gint new_text_length,
gint *position)
{
GtkEditableClass *klass;
gchar buf[64];
gchar *text;
g_return_if_fail (editable != NULL);
g_return_if_fail (GTK_IS_EDITABLE (editable));
klass = GTK_EDITABLE_CLASS (GTK_OBJECT (editable)->klass);
if (new_text_length <= 64)
text = buf;
else
text = g_new (gchar, new_text_length);
strncpy (text, new_text, new_text_length);
klass->insert_text (editable, text, new_text_length, position);
gtk_signal_emit (GTK_OBJECT (editable), editable_signals[CHANGED]);
if (new_text_length > 64)
g_free (text);
}
void
gtk_editable_delete_text (GtkEditable *editable,
gint start_pos,
gint end_pos)
{
GtkEditableClass *klass;
g_return_if_fail (editable != NULL);
g_return_if_fail (GTK_IS_EDITABLE (editable));
klass = GTK_EDITABLE_CLASS (GTK_OBJECT (editable)->klass);
klass->delete_text (editable, start_pos, end_pos);
gtk_signal_emit (GTK_OBJECT (editable), editable_signals[CHANGED]);
}
static void
gtk_editable_update_text (GtkEditable *editable,
gint start_pos,
gint end_pos)
{
GtkEditableClass *klass;
g_return_if_fail (editable != NULL);
g_return_if_fail (GTK_IS_EDITABLE (editable));
klass = GTK_EDITABLE_CLASS (GTK_OBJECT (editable)->klass);
klass->update_text (editable, start_pos, end_pos);
}
gchar *
gtk_editable_get_chars (GtkEditable *editable,
gint start,
gint end)
{
GtkEditableClass *klass;
g_return_val_if_fail (editable != NULL, NULL);
g_return_val_if_fail (GTK_IS_EDITABLE (editable), NULL);
klass = GTK_EDITABLE_CLASS (GTK_OBJECT (editable)->klass);
return klass->get_chars (editable, start, end);
}
static void
gtk_editable_set_selection (GtkEditable *editable,
gint start_pos,
gint end_pos)
{
GtkEditableClass *klass;
g_return_if_fail (editable != NULL);
g_return_if_fail (GTK_IS_EDITABLE (editable));
klass = GTK_EDITABLE_CLASS (GTK_OBJECT (editable)->klass);
klass->set_selection (editable, start_pos, end_pos);
}
static gint
gtk_editable_selection_clear (GtkWidget *widget,
GdkEventSelection *event)
{
GtkEditable *editable;
g_return_val_if_fail (widget != NULL, FALSE);
g_return_val_if_fail (GTK_IS_EDITABLE (widget), FALSE);
g_return_val_if_fail (event != NULL, FALSE);
/* Let the selection handling code know that the selection
* has been changed, since we've overriden the default handler */
if (!gtk_selection_clear (widget, event))
return FALSE;
editable = GTK_EDITABLE (widget);
if (event->selection == GDK_SELECTION_PRIMARY)
{
if (editable->has_selection)
{
editable->has_selection = FALSE;
gtk_editable_update_text (editable, editable->selection_start_pos,
editable->selection_end_pos);
}
}
else if (event->selection == clipboard_atom)
{
g_free (editable->clipboard_text);
editable->clipboard_text = NULL;
}
return TRUE;
}
static void
gtk_editable_selection_handler (GtkWidget *widget,
GtkSelectionData *selection_data,
gpointer data)
{
GtkEditable *editable;
gint selection_start_pos;
gint selection_end_pos;
gchar *str;
gint length;
g_return_if_fail (widget != NULL);
g_return_if_fail (GTK_IS_EDITABLE (widget));
editable = GTK_EDITABLE (widget);
if (selection_data->selection == GDK_SELECTION_PRIMARY)
{
selection_start_pos = MIN (editable->selection_start_pos, editable->selection_end_pos);
selection_end_pos = MAX (editable->selection_start_pos, editable->selection_end_pos);
str = gtk_editable_get_chars(editable,
selection_start_pos,
selection_end_pos);
length = selection_end_pos - selection_start_pos;
}
else /* CLIPBOARD */
{
if (!editable->clipboard_text)
return; /* Refuse */
str = editable->clipboard_text;
length = strlen (editable->clipboard_text);
}
if (selection_data->target == GDK_SELECTION_TYPE_STRING)
{
gtk_selection_data_set (selection_data,
GDK_SELECTION_TYPE_STRING,
8*sizeof(gchar), (guchar *)str, length);
}
else if (selection_data->target == text_atom ||
selection_data->target == ctext_atom)
{
guchar *text;
gchar c;
GdkAtom encoding;
gint format;
gint new_length;
c = str[length];
str[length] = '\0';
gdk_string_to_compound_text (str, &encoding, &format, &text, &new_length);
gtk_selection_data_set (selection_data, encoding, format, text, new_length);
gdk_free_compound_text (text);
str[length] = c;
}
if (str != editable->clipboard_text)
g_free (str);
}
static void
gtk_editable_selection_received (GtkWidget *widget,
GtkSelectionData *selection_data)
{
GtkEditable *editable;
gint reselect;
gint old_pos;
gint tmp_pos;
enum {INVALID, STRING, CTEXT} type;
g_return_if_fail (widget != NULL);
g_return_if_fail (GTK_IS_EDITABLE (widget));
editable = GTK_EDITABLE (widget);
if (selection_data->type == GDK_TARGET_STRING)
type = STRING;
else if (selection_data->type == ctext_atom)
type = CTEXT;
else
type = INVALID;
if (type == INVALID || selection_data->length < 0)
{
/* avoid infinite loop */
if (selection_data->target != GDK_TARGET_STRING)
gtk_selection_convert (widget, selection_data->selection,
GDK_TARGET_STRING, GDK_CURRENT_TIME);
return;
}
reselect = FALSE;
if ((editable->selection_start_pos != editable->selection_end_pos) &&
(!editable->has_selection ||
(selection_data->selection == clipboard_atom)))
{
reselect = TRUE;
/* Don't want to call gtk_editable_delete_selection here if we are going
* to reclaim the selection to avoid extra server traffic */
if (editable->has_selection)
{
gtk_editable_delete_text (editable,
MIN (editable->selection_start_pos, editable->selection_end_pos),
MAX (editable->selection_start_pos, editable->selection_end_pos));
}
else
gtk_editable_delete_selection (editable);
}
tmp_pos = old_pos = editable->current_pos;
switch (type)
{
case STRING:
selection_data->data[selection_data->length] = 0;
gtk_editable_insert_text (editable, (gchar *)selection_data->data,
strlen ((gchar *)selection_data->data),
&tmp_pos);
editable->current_pos = tmp_pos;
break;
case CTEXT:
{
gchar **list;
gint count;
gint i;
count = gdk_text_property_to_text_list (selection_data->type,
selection_data->format,
selection_data->data,
selection_data->length,
&list);
for (i=0; i<count; i++)
{
gtk_editable_insert_text (editable, list[i], strlen (list[i]), &tmp_pos);
editable->current_pos = tmp_pos;
}
if (count > 0)
gdk_free_text_list (list);
}
break;
case INVALID: /* quiet compiler */
break;
}
if (reselect)
gtk_editable_set_selection (editable, old_pos, editable->current_pos);
}
void
gtk_editable_delete_selection (GtkEditable *editable)
{
guint start;
guint end;
if (!editable->editable)
return;
start = editable->selection_start_pos;
end = editable->selection_end_pos;
editable->selection_start_pos = 0;
editable->selection_end_pos = 0;
if (start != end)
gtk_editable_delete_text (editable, MIN (start, end), MAX (start,end));
if (editable->has_selection)
{
editable->has_selection = FALSE;
if (gdk_selection_owner_get (GDK_SELECTION_PRIMARY) == GTK_WIDGET (editable)->window)
gtk_selection_owner_set (NULL, GDK_SELECTION_PRIMARY, GDK_CURRENT_TIME);
}
}
void
gtk_editable_claim_selection (GtkEditable *editable,
gboolean claim,
guint32 time)
{
g_return_if_fail (GTK_WIDGET_REALIZED (editable));
editable->has_selection = FALSE;
if (claim)
{
if (gtk_selection_owner_set (GTK_WIDGET(editable), GDK_SELECTION_PRIMARY, time))
editable->has_selection = TRUE;
}
else
{
if (gdk_selection_owner_get (GDK_SELECTION_PRIMARY) ==
GTK_WIDGET(editable)->window)
gtk_selection_owner_set (NULL, GDK_SELECTION_PRIMARY, time);
}
}
void
gtk_editable_select_region (GtkEditable *editable,
gint start,
gint end)
{
if (GTK_WIDGET_REALIZED (editable))
gtk_editable_claim_selection (editable, start != end, GDK_CURRENT_TIME);
gtk_editable_set_selection (editable, start, end);
}
void
gtk_editable_cut_clipboard (GtkEditable *editable, guint32 time)
{
gtk_editable_copy_clipboard (editable, time);
gtk_editable_delete_selection (editable);
}
void
gtk_editable_copy_clipboard (GtkEditable *editable, guint32 time)
{
gint selection_start_pos;
gint selection_end_pos;
selection_start_pos = MIN (editable->selection_start_pos, editable->selection_end_pos);
selection_end_pos = MAX (editable->selection_start_pos, editable->selection_end_pos);
if (selection_start_pos != selection_end_pos)
{
if (gtk_selection_owner_set (GTK_WIDGET (editable),
clipboard_atom,
time))
editable->clipboard_text = gtk_editable_get_chars (editable,
selection_start_pos,
selection_end_pos);
}
}
void
gtk_editable_paste_clipboard (GtkEditable *editable, guint32 time)
{
if (editable->editable)
gtk_selection_convert (GTK_WIDGET(editable),
clipboard_atom, ctext_atom, time);
}
void
gtk_editable_changed (GtkEditable *editable)
{
gtk_signal_emit (GTK_OBJECT (editable), editable_signals[CHANGED]);
}
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