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gtk2/gtk/testselection.c
PDT 1998 Shawn T. Amundson 92006c8e78 Changed LGPL address for FSF in all .h and .c files 
Sun Apr 12 18:54:29 PDT 1998 Shawn T. Amundson <amundson@gtk.org>

        * Changed LGPL address for FSF in all .h and .c files
1998-04-13 02:02:47 +00:00

470 lines
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C
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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 <string.h>
#include "gtk.h"
typedef enum {
SEL_TYPE_NONE,
APPLE_PICT,
ATOM,
ATOM_PAIR,
BITMAP,
C_STRING,
COLORMAP,
COMPOUND_TEXT,
DRAWABLE,
INTEGER,
PIXEL,
PIXMAP,
SPAN,
STRING,
TEXT,
WINDOW,
LAST_SEL_TYPE
} SelType;
GdkAtom seltypes[LAST_SEL_TYPE];
typedef struct _Target {
gchar *target_name;
SelType type;
GdkAtom target;
gint format;
GtkSelectionFunction *handler;
} Target;
/* The following is a list of all the selection targets defined
in the ICCCM */
static Target targets[] = {
{ "ADOBE_PORTABLE_DOCUMENT_FORMAT", STRING, 0, 8, NULL },
{ "APPLE_PICT", APPLE_PICT, 0, 8, NULL },
{ "BACKGROUND", PIXEL, 0, 32, NULL },
{ "BITMAP", BITMAP, 0, 32, NULL },
{ "CHARACTER_POSITION", SPAN, 0, 32, NULL },
{ "CLASS", TEXT, 0, 8, NULL },
{ "CLIENT_WINDOW", WINDOW, 0, 32, NULL },
{ "COLORMAP", COLORMAP, 0, 32, NULL },
{ "COLUMN_NUMBER", SPAN, 0, 32, NULL },
{ "COMPOUND_TEXT", COMPOUND_TEXT, 0, 8, NULL },
/* { "DELETE", "NULL", 0, ?, NULL }, */
{ "DRAWABLE", DRAWABLE, 0, 32, NULL },
{ "ENCAPSULATED_POSTSCRIPT", STRING, 0, 8, NULL },
{ "ENCAPSULATED_POSTSCRIPT_INTERCHANGE", STRING, 0, 8, NULL },
{ "FILE_NAME", TEXT, 0, 8, NULL },
{ "FOREGROUND", PIXEL, 0, 32, NULL },
{ "HOST_NAME", TEXT, 0, 8, NULL },
/* { "INSERT_PROPERTY", "NULL", 0, ? NULL }, */
/* { "INSERT_SELECTION", "NULL", 0, ? NULL }, */
{ "LENGTH", INTEGER, 0, 32, NULL },
{ "LINE_NUMBER", SPAN, 0, 32, NULL },
{ "LIST_LENGTH", INTEGER, 0, 32, NULL },
{ "MODULE", TEXT, 0, 8, NULL },
/* { "MULTIPLE", "ATOM_PAIR", 0, 32, NULL }, */
{ "NAME", TEXT, 0, 8, NULL },
{ "ODIF", TEXT, 0, 8, NULL },
{ "OWNER_OS", TEXT, 0, 8, NULL },
{ "PIXMAP", PIXMAP, 0, 32, NULL },
{ "POSTSCRIPT", STRING, 0, 8, NULL },
{ "PROCEDURE", TEXT, 0, 8, NULL },
{ "PROCESS", INTEGER, 0, 32, NULL },
{ "STRING", STRING, 0, 8, NULL },
{ "TARGETS", ATOM, 0, 32, NULL },
{ "TASK", INTEGER, 0, 32, NULL },
{ "TEXT", TEXT, 0, 8 , NULL },
{ "TIMESTAMP", INTEGER, 0, 32, NULL },
{ "USER", TEXT, 0, 8, NULL },
};
static int num_targets = sizeof(targets)/sizeof(Target);
static int have_selection = FALSE;
GtkWidget *selection_text;
GtkWidget *selection_button;
GString *selection_string = NULL;
static void
init_atoms ()
{
int i;
seltypes[SEL_TYPE_NONE] = GDK_NONE;
seltypes[APPLE_PICT] = gdk_atom_intern ("APPLE_PICT",FALSE);
seltypes[ATOM] = gdk_atom_intern ("ATOM",FALSE);
seltypes[ATOM_PAIR] = gdk_atom_intern ("ATOM_PAIR",FALSE);
seltypes[BITMAP] = gdk_atom_intern ("BITMAP",FALSE);
seltypes[C_STRING] = gdk_atom_intern ("C_STRING",FALSE);
seltypes[COLORMAP] = gdk_atom_intern ("COLORMAP",FALSE);
seltypes[COMPOUND_TEXT] = gdk_atom_intern ("COMPOUND_TEXT",FALSE);
seltypes[DRAWABLE] = gdk_atom_intern ("DRAWABLE",FALSE);
seltypes[INTEGER] = gdk_atom_intern ("INTEGER",FALSE);
seltypes[PIXEL] = gdk_atom_intern ("PIXEL",FALSE);
seltypes[PIXMAP] = gdk_atom_intern ("PIXMAP",FALSE);
seltypes[SPAN] = gdk_atom_intern ("SPAN",FALSE);
seltypes[STRING] = gdk_atom_intern ("STRING",FALSE);
seltypes[TEXT] = gdk_atom_intern ("TEXT",FALSE);
seltypes[WINDOW] = gdk_atom_intern ("WINDOW",FALSE);
for (i=0; i<num_targets; i++)
targets[i].target = gdk_atom_intern (targets[i].target_name, FALSE);
}
void
selection_toggled (GtkWidget *widget)
{
if (GTK_TOGGLE_BUTTON(widget)->active)
{
have_selection = gtk_selection_owner_set (widget,
GDK_SELECTION_PRIMARY,
GDK_CURRENT_TIME);
if (!have_selection)
gtk_toggle_button_set_state (GTK_TOGGLE_BUTTON(widget), FALSE);
}
else
{
if (have_selection)
{
if (gdk_selection_owner_get (GDK_SELECTION_PRIMARY) == widget->window)
gtk_selection_owner_set (NULL, GDK_SELECTION_PRIMARY,
GDK_CURRENT_TIME);
have_selection = FALSE;
}
}
}
void
selection_handle (GtkWidget *widget,
GtkSelectionData *selection_data, gpointer data)
{
guchar *buffer;
gint len;
if (!selection_string)
{
buffer = NULL;
len = 0;
}
else
{
buffer = (guchar *)selection_string->str;
len = selection_string->len;
}
gtk_selection_data_set (selection_data,
selection_data->target == seltypes[COMPOUND_TEXT] ?
seltypes[COMPOUND_TEXT] : seltypes[STRING],
8, buffer, len);
}
gint
selection_clear (GtkWidget *widget, GdkEventSelection *event)
{
have_selection = FALSE;
gtk_toggle_button_set_state (GTK_TOGGLE_BUTTON(widget), FALSE);
return TRUE;
}
gchar *
stringify_atom (guchar *data, gint *position)
{
gchar *str = gdk_atom_name (*(GdkAtom *)(data+*position));
*position += sizeof(GdkAtom);
return str;
}
gchar *
stringify_text (guchar *data, gint *position)
{
gchar *str = g_strdup ((gchar *)(data+*position));
*position += strlen (str) + 1;
return str;
}
gchar *
stringify_xid (guchar *data, gint *position)
{
gchar buffer[20];
gchar *str;
sprintf(buffer,"0x%x",*(guint32 *)(data+*position));
str = g_strdup (buffer);
*position += sizeof(guint32);
return str;
}
gchar *
stringify_integer (guchar *data, gint *position)
{
gchar buffer[20];
gchar *str;
sprintf(buffer,"%d",*(int *)(data+*position));
str = g_strdup (buffer);
*position += sizeof(int);
return str;
}
gchar *
stringify_span (guchar *data, gint *position)
{
gchar buffer[42];
gchar *str;
sprintf(buffer,"%d - %d",((int *)(data+*position))[0],
((int *)(data+*position))[1]);
str = g_strdup (buffer);
*position += 2*sizeof(int);
return str;
}
void
selection_received (GtkWidget *widget, GtkSelectionData *data)
{
int position;
int i;
SelType seltype;
char *str;
if (data->length < 0)
{
g_print("Error retrieving selection\n");
return;
}
seltype = SEL_TYPE_NONE;
for (i=0; i<LAST_SEL_TYPE; i++)
{
if (seltypes[i] == data->type)
{
seltype = i;
break;
}
}
if (seltype == SEL_TYPE_NONE)
{
char *name = gdk_atom_name (data->type);
g_print("Don't know how to handle type: %s (%ld)\n",
name?name:"<unknown>",
data->type);
return;
}
if (selection_string != NULL)
g_string_free (selection_string, TRUE);
selection_string = g_string_new (NULL);
gtk_text_freeze (GTK_TEXT (selection_text));
gtk_text_set_point (GTK_TEXT (selection_text), 0);
gtk_text_forward_delete (GTK_TEXT (selection_text),
gtk_text_get_length (GTK_TEXT (selection_text)));
position = 0;
while (position < data->length)
{
switch (seltype)
{
case ATOM:
str = stringify_atom (data->data, &position);
break;
case COMPOUND_TEXT:
case STRING:
case TEXT:
str = stringify_text (data->data, &position);
break;
case BITMAP:
case DRAWABLE:
case PIXMAP:
case WINDOW:
case COLORMAP:
str = stringify_xid (data->data, &position);
break;
case INTEGER:
case PIXEL:
str = stringify_integer (data->data, &position);
break;
case SPAN:
str = stringify_span (data->data, &position);
break;
default:
{
char *name = gdk_atom_name (data->type);
g_print("Can't convert type %s (%ld) to string\n",
name?name:"<unknown>",
data->type);
position = data->length;
continue;
}
}
gtk_text_insert (GTK_TEXT (selection_text), NULL,
&selection_text->style->black,
NULL, str, -1);
gtk_text_insert (GTK_TEXT (selection_text), NULL,
&selection_text->style->black,
NULL, "\n", -1);
g_string_append (selection_string, str);
g_free (str);
}
gtk_text_thaw (GTK_TEXT (selection_text));
}
void
paste (GtkWidget *widget, GtkWidget *entry)
{
char *name;
GdkAtom atom;
name = gtk_entry_get_text (GTK_ENTRY(entry));
atom = gdk_atom_intern (name, FALSE);
if (atom == GDK_NONE)
{
g_print("Could not create atom: \"%s\"\n",name);
return;
}
gtk_selection_convert (selection_button, GDK_SELECTION_PRIMARY, atom,
GDK_CURRENT_TIME);
}
void
quit ()
{
gtk_exit (0);
}
int
main (int argc, char *argv[])
{
GtkWidget *dialog;
GtkWidget *button;
GtkWidget *table;
GtkWidget *label;
GtkWidget *entry;
GtkWidget *hscrollbar;
GtkWidget *vscrollbar;
GtkWidget *hbox;
gtk_init (&argc, &argv);
init_atoms();
dialog = gtk_dialog_new ();
gtk_widget_set_name (dialog, "Test Input");
gtk_container_border_width (GTK_CONTAINER(dialog), 0);
gtk_signal_connect (GTK_OBJECT (dialog), "destroy",
GTK_SIGNAL_FUNC (quit), NULL);
table = gtk_table_new (4, 2, FALSE);
gtk_container_border_width (GTK_CONTAINER(table), 10);
gtk_table_set_row_spacing (GTK_TABLE (table), 0, 5);
gtk_table_set_row_spacing (GTK_TABLE (table), 1, 2);
gtk_table_set_row_spacing (GTK_TABLE (table), 2, 2);
gtk_table_set_col_spacing (GTK_TABLE (table), 0, 2);
gtk_box_pack_start (GTK_BOX (GTK_DIALOG(dialog)->vbox),
table, TRUE, TRUE, 0);
gtk_widget_show (table);
selection_button = gtk_toggle_button_new_with_label ("Claim Selection");
gtk_table_attach (GTK_TABLE (table), selection_button, 0, 2, 0, 1,
GTK_EXPAND | GTK_FILL, 0, 0, 0);
gtk_widget_show (selection_button);
gtk_signal_connect (GTK_OBJECT(selection_button), "toggled",
GTK_SIGNAL_FUNC (selection_toggled), NULL);
gtk_signal_connect (GTK_OBJECT(selection_button), "selection_clear_event",
GTK_SIGNAL_FUNC (selection_clear), NULL);
gtk_signal_connect (GTK_OBJECT(selection_button), "selection_received",
GTK_SIGNAL_FUNC (selection_received), NULL);
gtk_selection_add_handler (selection_button, GDK_SELECTION_PRIMARY,
seltypes[STRING], selection_handle, NULL);
gtk_selection_add_handler (selection_button, GDK_SELECTION_PRIMARY,
seltypes[TEXT], selection_handle, NULL);
gtk_selection_add_handler (selection_button, GDK_SELECTION_PRIMARY,
seltypes[COMPOUND_TEXT],
selection_handle, NULL);
selection_text = gtk_text_new (NULL, NULL);
gtk_table_attach_defaults (GTK_TABLE (table), selection_text, 0, 1, 1, 2);
gtk_widget_show (selection_text);
hscrollbar = gtk_hscrollbar_new (GTK_TEXT (selection_text)->hadj);
gtk_table_attach (GTK_TABLE (table), hscrollbar, 0, 1, 2, 3,
GTK_EXPAND | GTK_FILL, GTK_FILL, 0, 0);
gtk_widget_show (hscrollbar);
vscrollbar = gtk_vscrollbar_new (GTK_TEXT (selection_text)->vadj);
gtk_table_attach (GTK_TABLE (table), vscrollbar, 1, 2, 1, 2,
GTK_FILL, GTK_EXPAND | GTK_FILL, 0, 0);
gtk_widget_show (vscrollbar);
hbox = gtk_hbox_new (FALSE, 2);
gtk_table_attach (GTK_TABLE (table), hbox, 0, 2, 3, 4,
GTK_EXPAND | GTK_FILL, 0, 0, 0);
gtk_widget_show (hbox);
label = gtk_label_new ("Target:");
gtk_box_pack_start (GTK_BOX(hbox), label, FALSE, FALSE, 0);
gtk_widget_show (label);
entry = gtk_entry_new ();
gtk_box_pack_start (GTK_BOX(hbox), entry, TRUE, TRUE, 0);
gtk_widget_show (entry);
/* .. And create some buttons */
button = gtk_button_new_with_label ("Paste");
gtk_box_pack_start (GTK_BOX (GTK_DIALOG(dialog)->action_area),
button, TRUE, TRUE, 0);
gtk_signal_connect (GTK_OBJECT (button), "clicked",
GTK_SIGNAL_FUNC (paste), entry);
gtk_widget_show (button);
button = gtk_button_new_with_label ("Quit");
gtk_box_pack_start (GTK_BOX (GTK_DIALOG(dialog)->action_area),
button, TRUE, TRUE, 0);
gtk_signal_connect_object (GTK_OBJECT (button), "clicked",
GTK_SIGNAL_FUNC (gtk_widget_destroy),
GTK_OBJECT (dialog));
gtk_widget_show (button);
gtk_widget_show (dialog);
gtk_main ();
return 0;
}
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