gtk/gdk/win32/gdkselection.c
Tor Lillqvist c9b2958b6c Don't draw anything if width or height is zero. Don't print a warning if
* gdk/win32/gdkdraw.c (gdk_draw_arc): Don't draw anything if width
 	or height is zero. Don't print a warning if Pie or Arc fails, they
	always fail (?) for very narrow ellipses.

	* gdk/win32/gdkdraw.c (gdk_draw_pixmap): Call InvalidateRgn for
 	the part or the destination window corresponding to source area
 	outside of the source drawable's boundary.

	* gdk/win32/gdkdraw.c (gdk_draw_lines, gdk_draw_polygon): Don't do
 	anything if less than two points.

	* gdk/win32/gdkselection.c (gdk_selection_owner_get): Always
 	return NULL. Gtk cut-and-paste inside a single program works
 	better this way. (It always gets the clipboard contents from
 	Windows, not from its own copy, which is cleared anyway. I can't
 	say I fully understand what happens... Emulating the X selection
 	and property stuff is a bit of a mess.)

	* gdk/win32/gdkevents.c
	* gdk/win32/gdkproperty.c: A bít more verbose logging.

	* gdk/win32/gdkregion.c: Fix some memory leaks (temporary regions
 	that never got deleted). Revamp gdk_region_shrink.

	* gdk/win32/gdkregion.c: Fix memory leak, delete temporary regions
 	after use.

	* gtk/gtk.def: Add some missing entry points.

	* gtk/gtkrc.c: Strip trailing directory separator from pixmap path
 	component.
1999-07-10 00:26:54 +00:00

413 lines
10 KiB
C

/* GDK - The GIMP Drawing Kit
* 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.
*/
/*
* Modified by the GTK+ Team and others 1997-1999. See the AUTHORS
* file for a list of people on the GTK+ Team. See the ChangeLog
* files for a list of changes. These files are distributed with
* GTK+ at ftp://ftp.gtk.org/pub/gtk/.
*/
#include "config.h"
#include <string.h>
#include <gdk/gdk.h>
#include "gdkx.h"
/* We emulate the GDK_SELECTION window properties by storing
* it's data in a per-window hashtable.
*/
typedef struct {
guchar *data;
gint length;
gint format;
GdkAtom type;
} GdkSelProp;
static GHashTable *sel_prop_table = NULL;
void
gdk_selection_init (void)
{
if (sel_prop_table == NULL)
sel_prop_table = g_hash_table_new (g_int_hash, g_int_equal);
}
void
gdk_sel_prop_store (GdkWindow *owner,
GdkAtom type,
gint format,
guchar *data,
gint length)
{
GdkWindowPrivate *private = (GdkWindowPrivate *) owner;
GdkSelProp *prop;
prop = g_hash_table_lookup (sel_prop_table, &private->xwindow);
if (prop != NULL)
{
g_free (prop->data);
g_hash_table_remove (sel_prop_table, &private->xwindow);
}
prop = g_new (GdkSelProp, 1);
prop->data = data;
prop->length = length;
prop->format = format;
prop->type = type;
g_hash_table_insert (sel_prop_table, &private->xwindow, prop);
}
gint
gdk_selection_owner_set (GdkWindow *owner,
GdkAtom selection,
guint32 time,
gint send_event)
{
GdkWindowPrivate *private;
gchar *sel_name;
HWND xwindow;
private = (GdkWindowPrivate *) owner;
GDK_NOTE (SELECTION,
(sel_name = gdk_atom_name (selection),
g_print ("gdk_selection_owner_set: %#x %#x (%s)\n",
(private ? private->xwindow : 0),
selection, sel_name),
g_free (sel_name)));
if (selection != gdk_clipboard_atom)
return FALSE;
if (owner != NULL)
xwindow = private->xwindow;
else
xwindow = NULL;
GDK_NOTE (SELECTION, g_print ("...OpenClipboard(%#x)\n", xwindow));
if (!OpenClipboard (xwindow))
{
g_warning ("gdk_selection_owner_set: OpenClipboard failed");
return FALSE;
}
GDK_NOTE (SELECTION, g_print ("...EmptyClipboard()\n"));
if (!EmptyClipboard ())
{
g_warning ("gdk_selection_owner_set: EmptyClipboard failed");
CloseClipboard ();
return FALSE;
}
#if 0
/* No delayed rendering */
if (xwindow != NULL)
SetClipboardData (CF_TEXT, NULL);
#endif
GDK_NOTE (SELECTION, g_print ("...CloseClipboard()\n"));
if (!CloseClipboard ())
{
g_warning ("gdk_selection_owner_set: CloseClipboard failed");
return FALSE;
}
if (owner != NULL)
{
/* Send ourselves an ersatz selection request message so that
* gdk_property_change will be called to store the clipboard data.
*/
SendMessage (private->xwindow, gdk_selection_request_msg,
selection, 0);
}
return TRUE;
}
GdkWindow*
gdk_selection_owner_get (GdkAtom selection)
{
GdkWindow *window;
GdkWindowPrivate *private;
gchar *sel_name;
#if 1
/* XXX Hmm, gtk selections seem to work best with this. This causes
* gtk to always get the clipboard contents from Windows, and not
* from the editable's own stashed-away copy.
*/
return NULL;
#else
if (selection != gdk_clipboard_atom)
window = NULL;
else
window = gdk_window_lookup (GetClipboardOwner ());
private = (GdkWindowPrivate *) window;
#endif
GDK_NOTE (SELECTION,
(sel_name = gdk_atom_name (selection),
g_print ("gdk_selection_owner_get: %#x (%s) = %#x\n",
selection, sel_name,
(private ? private->xwindow : 0)),
g_free (sel_name)));
return window;
}
void
gdk_selection_convert (GdkWindow *requestor,
GdkAtom selection,
GdkAtom target,
guint32 time)
{
GdkWindowPrivate *private;
HGLOBAL hdata;
GdkSelProp *prop;
guchar *ptr, *data, *datap, *p;
guint i, length, slength;
gchar *sel_name, *tgt_name;
g_return_if_fail (requestor != NULL);
private = (GdkWindowPrivate*) requestor;
GDK_NOTE (SELECTION,
(sel_name = gdk_atom_name (selection),
tgt_name = gdk_atom_name (target),
g_print ("gdk_selection_convert: %#x %#x (%s) %#x (%s)\n",
private->xwindow, selection, sel_name, target, tgt_name),
g_free (sel_name),
g_free (tgt_name)));
if (selection == gdk_clipboard_atom)
{
/* Converting the CLIPBOARD selection means he wants the
* contents of the clipboard. Get the clipboard data,
* and store it for later.
*/
GDK_NOTE (SELECTION, g_print ("...OpenClipboard(%#x)\n",
private->xwindow));
if (!OpenClipboard (private->xwindow))
{
g_warning ("gdk_selection_convert: OpenClipboard failed");
return;
}
GDK_NOTE (SELECTION, g_print ("...GetClipboardData(CF_TEXT)\n"));
if ((hdata = GetClipboardData (CF_TEXT)) != NULL)
{
if ((ptr = GlobalLock (hdata)) != NULL)
{
length = GlobalSize (hdata);
GDK_NOTE (SELECTION, g_print ("...got data: %d bytes: %.10s\n",
length, ptr));
slength = 0;
p = ptr;
for (i = 0; i < length; i++)
{
if (*p == '\0')
break;
else if (*p != '\r')
slength++;
p++;
}
data = datap = g_malloc (slength + 1);
p = ptr;
for (i = 0; i < length; i++)
{
if (*p == '\0')
break;
else if (*p != '\r')
*datap++ = *p;
p++;
}
*datap++ = '\0';
gdk_sel_prop_store (requestor, GDK_TARGET_STRING, 8,
data, strlen (data) + 1);
GlobalUnlock (hdata);
}
}
GDK_NOTE (SELECTION, g_print ("...CloseClipboard()\n"));
CloseClipboard ();
/* Send ourselves an ersatz selection notify message so that we actually
* fetch the data.
*/
SendMessage (private->xwindow, gdk_selection_notify_msg, selection, target);
}
else if (selection == gdk_win32_dropfiles_atom)
{
/* This means he wants the names of the dropped files.
* gdk_dropfiles_filter already has stored the text/uri-list
* data, tempoarily on gdk_root_parent's selection "property".
*/
GdkSelProp *prop;
prop = g_hash_table_lookup (sel_prop_table, &gdk_root_parent.xwindow);
if (prop != NULL)
{
g_hash_table_remove (sel_prop_table, &gdk_root_parent.xwindow);
gdk_sel_prop_store (requestor, prop->type, prop->format,
prop->data, prop->length);
g_free (prop);
SendMessage (private->xwindow, gdk_selection_notify_msg, selection, target);
}
}
else
{
g_warning ("gdk_selection_convert: General case not implemented");
}
}
gint
gdk_selection_property_get (GdkWindow *requestor,
guchar **data,
GdkAtom *ret_type,
gint *ret_format)
{
GdkWindowPrivate *private;
GdkSelProp *prop;
g_return_val_if_fail (requestor != NULL, 0);
private = (GdkWindowPrivate*) requestor;
if (private->destroyed)
return 0;
GDK_NOTE (SELECTION, g_print ("gdk_selection_property_get: %#x\n",
private->xwindow));
prop = g_hash_table_lookup (sel_prop_table, &private->xwindow);
if (prop == NULL)
{
*data = NULL;
return 0;
}
*data = g_malloc (prop->length);
if (prop->length > 0)
memmove (*data, prop->data, prop->length);
if (ret_type)
*ret_type = prop->type;
if (ret_format)
*ret_format = prop->format;
return prop->length;
}
void
gdk_selection_property_delete (GdkWindowPrivate *private)
{
GdkSelProp *prop;
prop = g_hash_table_lookup (sel_prop_table, &private->xwindow);
if (prop != NULL)
{
g_free (prop->data);
g_hash_table_remove (sel_prop_table, &private->xwindow);
}
else
g_warning ("huh?");
}
void
gdk_selection_send_notify (guint32 requestor,
GdkAtom selection,
GdkAtom target,
GdkAtom property,
guint32 time)
{
gchar *sel_name, *tgt_name, *prop_name;
GDK_NOTE (SELECTION,
(sel_name = gdk_atom_name (selection),
tgt_name = gdk_atom_name (target),
prop_name = gdk_atom_name (property),
g_print ("gdk_selection_send_notify: %#x %#x (%s) %#x (%s) %#x (%s)\n",
requestor,
selection, sel_name,
target, tgt_name,
property, prop_name),
g_free (sel_name),
g_free (tgt_name),
g_free (prop_name)));
/* Send ourselves a selection clear message so that gtk thinks we don't
* have the selection, and will claim it anew when needed, and
* we thus get a chance to store data in the Windows clipboard.
* Otherwise, if a gtkeditable does a copy to clipboard several times
* only the first one actually gets copied to the Windows clipboard,
* as only he first one causes a call to gdk_property_change.
*
* Hmm, there is something fishy with this. Cut and paste inside the
* same app didn't work, the gtkeditable immediately forgot the
* clipboard contents in gtk_editable_selection_clear as a result of
* this message. OTOH, when I changed gdk_selection_owner_get to
* always return NULL, it works. Sigh.
*/
SendMessage ((HWND) requestor, gdk_selection_clear_msg, selection, 0);
}
gint
gdk_text_property_to_text_list (GdkAtom encoding,
gint format,
guchar *text,
gint length,
gchar ***list)
{
GDK_NOTE (SELECTION,
g_print ("gdk_text_property_to_text_list not implemented\n"));
return 0;
}
void
gdk_free_text_list (gchar **list)
{
g_return_if_fail (list != NULL);
/* ??? */
}
gint
gdk_string_to_compound_text (gchar *str,
GdkAtom *encoding,
gint *format,
guchar **ctext,
gint *length)
{
g_warning ("gdk_string_to_compound_text: Not implemented");
return 0;
}
void
gdk_free_compound_text (guchar *ctext)
{
g_warning ("gdk_free_compound_text: Not implemented");
}