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gtk/gdk/win32/gdkproperty-win32.c
Matthias Clasen 82ce59cd0f Remove unnecessary NULL checks before g_free(). (#369666, Morten Welinder, 
2007-03-09  Matthias Clasen <mclasen@redhat.com>

        * Everywhere: Remove unnecessary NULL checks before
        g_free().  (#369666, Morten Welinder, Djihed Afifi)

        * configure.in: Check for ftw.h



svn path=/trunk/; revision=17444
2007-03-09 21:57:37 +00:00

468 lines
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/* GDK - The GIMP Drawing Kit
* Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
* Copyright (C) 1998-2002 Tor Lillqvist
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser 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 1997-2000. 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 <stdlib.h>
#include <glib/gprintf.h>
#include "gdkscreen.h"
#include "gdkproperty.h"
#include "gdkselection.h"
#include "gdkprivate-win32.h"
GdkAtom
gdk_atom_intern (const gchar *atom_name,
gint only_if_exists)
{
ATOM win32_atom;
GdkAtom retval;
static GHashTable *atom_hash = NULL;
if (!atom_hash)
atom_hash = g_hash_table_new (g_str_hash, g_str_equal);
retval = g_hash_table_lookup (atom_hash, atom_name);
if (!retval)
{
if (strcmp (atom_name, "PRIMARY") == 0)
retval = GDK_SELECTION_PRIMARY;
else if (strcmp (atom_name, "SECONDARY") == 0)
retval = GDK_SELECTION_SECONDARY;
else if (strcmp (atom_name, "CLIPBOARD") == 0)
retval = GDK_SELECTION_CLIPBOARD;
else if (strcmp (atom_name, "ATOM") == 0)
retval = GDK_SELECTION_TYPE_ATOM;
else if (strcmp (atom_name, "BITMAP") == 0)
retval = GDK_SELECTION_TYPE_BITMAP;
else if (strcmp (atom_name, "COLORMAP") == 0)
retval = GDK_SELECTION_TYPE_COLORMAP;
else if (strcmp (atom_name, "DRAWABLE") == 0)
retval = GDK_SELECTION_TYPE_DRAWABLE;
else if (strcmp (atom_name, "INTEGER") == 0)
retval = GDK_SELECTION_TYPE_INTEGER;
else if (strcmp (atom_name, "PIXMAP") == 0)
retval = GDK_SELECTION_TYPE_PIXMAP;
else if (strcmp (atom_name, "WINDOW") == 0)
retval = GDK_SELECTION_TYPE_WINDOW;
else if (strcmp (atom_name, "STRING") == 0)
retval = GDK_SELECTION_TYPE_STRING;
else
{
win32_atom = GlobalAddAtom (atom_name);
retval = GUINT_TO_POINTER ((guint) win32_atom);
}
g_hash_table_insert (atom_hash,
g_strdup (atom_name),
retval);
}
return retval;
}
GdkAtom
gdk_atom_intern_static_string (const gchar *atom_name)
{
/* on X11 this is supposed to save memory. On win32 there seems to be
* no way to make a difference ?
*/
return gdk_atom_intern (atom_name, FALSE);
}
gchar *
gdk_atom_name (GdkAtom atom)
{
ATOM win32_atom;
gchar name[256];
if (GDK_SELECTION_PRIMARY == atom) return g_strdup ("PRIMARY");
else if (GDK_SELECTION_SECONDARY == atom) return g_strdup ("SECONDARY");
else if (GDK_SELECTION_CLIPBOARD == atom) return g_strdup ("CLIPBOARD");
else if (GDK_SELECTION_TYPE_ATOM == atom) return g_strdup ("ATOM");
else if (GDK_SELECTION_TYPE_BITMAP == atom) return g_strdup ("BITMAP");
else if (GDK_SELECTION_TYPE_COLORMAP == atom) return g_strdup ("COLORMAP");
else if (GDK_SELECTION_TYPE_DRAWABLE == atom) return g_strdup ("DRAWABLE");
else if (GDK_SELECTION_TYPE_INTEGER == atom) return g_strdup ("INTEGER");
else if (GDK_SELECTION_TYPE_PIXMAP == atom) return g_strdup ("PIXMAP");
else if (GDK_SELECTION_TYPE_WINDOW == atom) return g_strdup ("WINDOW");
else if (GDK_SELECTION_TYPE_STRING == atom) return g_strdup ("STRING");
win32_atom = GPOINTER_TO_UINT (atom);
if (win32_atom < 0xC000)
return g_strdup_printf ("#%p", atom);
else if (GlobalGetAtomName (win32_atom, name, sizeof (name)) == 0)
return NULL;
return g_strdup (name);
}
gint
gdk_property_get (GdkWindow *window,
GdkAtom property,
GdkAtom type,
gulong offset,
gulong length,
gint pdelete,
GdkAtom *actual_property_type,
gint *actual_format_type,
gint *actual_length,
guchar **data)
{
g_return_val_if_fail (window != NULL, FALSE);
g_return_val_if_fail (GDK_IS_WINDOW (window), FALSE);
if (GDK_WINDOW_DESTROYED (window))
return FALSE;
g_warning ("gdk_property_get: Not implemented");
return FALSE;
}
void
gdk_property_change (GdkWindow *window,
GdkAtom property,
GdkAtom type,
gint format,
GdkPropMode mode,
const guchar *data,
gint nelements)
{
HGLOBAL hdata;
UINT cf = 0;
gint i, size, nchars;
gchar *prop_name, *type_name;
guchar *ucptr, *buf = NULL;
wchar_t *wcptr;
glong wclen;
enum { SYSTEM_CODEPAGE, UNICODE_TEXT } method;
gboolean ok = TRUE;
g_return_if_fail (window != NULL);
g_return_if_fail (GDK_IS_WINDOW (window));
if (GDK_WINDOW_DESTROYED (window))
return;
GDK_NOTE (DND,
(prop_name = gdk_atom_name (property),
type_name = gdk_atom_name (type),
g_print ("gdk_property_change: %p %#x (%s) %#x (%s) %s %d*%d bytes: %s\n",
GDK_WINDOW_HWND (window),
(guint) property, prop_name,
(guint) type, type_name,
(mode == GDK_PROP_MODE_REPLACE ? "REPLACE" :
(mode == GDK_PROP_MODE_PREPEND ? "PREPEND" :
(mode == GDK_PROP_MODE_APPEND ? "APPEND" :
"???"))),
format, nelements,
_gdk_win32_data_to_string (data, MIN (10, format*nelements/8))),
g_free (prop_name),
g_free (type_name)));
/* We should never come here for these types */
g_return_if_fail (type != GDK_TARGET_STRING);
g_return_if_fail (type != _text);
g_return_if_fail (type != _compound_text);
g_return_if_fail (type != _save_targets);
if (property == _gdk_selection_property
&& format == 8
&& mode == GDK_PROP_MODE_REPLACE)
{
if (type == _utf8_string)
{
if (!OpenClipboard (GDK_WINDOW_HWND (window)))
{
WIN32_API_FAILED ("OpenClipboard");
return;
}
nchars = g_utf8_strlen (data, nelements);
/* Check if only ASCII */
for (i = 0; i < nelements; i++)
if (data[i] >= 0200)
break;
if (i == nelements)
{
/* If only ASCII, use CF_TEXT and the data as such */
method = SYSTEM_CODEPAGE;
size = nelements;
for (i = 0; i < nelements; i++)
if (data[i] == '\n')
size++;
size++;
GDK_NOTE (DND, g_print ("... as text: %.40s\n", data));
}
else
{
/* Use CF_UNICODETEXT */
method = UNICODE_TEXT;
wcptr = g_utf8_to_utf16 (data, nelements, NULL, &wclen, NULL);
wclen++; /* Terminating 0 */
size = wclen * 2;
for (i = 0; i < wclen; i++)
if (wcptr[i] == '\n')
size += 2;
GDK_NOTE (DND, g_print ("... as Unicode\n"));
}
if (!(hdata = GlobalAlloc (GMEM_MOVEABLE, size)))
{
WIN32_API_FAILED ("GlobalAlloc");
if (!CloseClipboard ())
WIN32_API_FAILED ("CloseClipboard");
g_free (buf);
return;
}
ucptr = GlobalLock (hdata);
switch (method)
{
case SYSTEM_CODEPAGE:
cf = CF_TEXT;
for (i = 0; i < nelements; i++)
{
if (data[i] == '\n')
*ucptr++ = '\r';
*ucptr++ = data[i];
}
*ucptr++ = '\0';
break;
case UNICODE_TEXT:
{
wchar_t *p = (wchar_t *) ucptr;
cf = CF_UNICODETEXT;
for (i = 0; i < wclen; i++)
{
if (wcptr[i] == '\n')
*p++ = '\r';
*p++ = wcptr[i];
}
g_free (wcptr);
}
break;
default:
g_assert_not_reached ();
}
GlobalUnlock (hdata);
GDK_NOTE (DND, g_print ("... SetClipboardData(%s,%p)\n",
_gdk_win32_cf_to_string (cf), hdata));
if (ok && !SetClipboardData (cf, hdata))
WIN32_API_FAILED ("SetClipboardData"), ok = FALSE;
if (!CloseClipboard ())
WIN32_API_FAILED ("CloseClipboard");
}
else
{
GDK_NOTE (DND, g_print ("... delayed rendering\n"));
/* Delayed Rendering. We can't assign hdata to the clipboard
* here as type may be "image/png", "image/jpg", etc. In
* this case there's a further conversion afterwards.
*/
_delayed_rendering_data = NULL;
if (!(hdata = GlobalAlloc (GMEM_MOVEABLE, nelements > 0 ? nelements : 1)))
{
WIN32_API_FAILED ("GlobalAlloc");
return;
}
ucptr = GlobalLock (hdata);
memcpy (ucptr, data, nelements);
GlobalUnlock (hdata);
_delayed_rendering_data = hdata;
}
}
else
g_warning ("gdk_property_change: General case not implemented");
}
void
gdk_property_delete (GdkWindow *window,
GdkAtom property)
{
gchar *prop_name;
g_return_if_fail (window != NULL);
g_return_if_fail (GDK_IS_WINDOW (window));
GDK_NOTE (DND,
(prop_name = gdk_atom_name (property),
g_print ("gdk_property_delete: %p %#x (%s)\n",
GDK_WINDOW_HWND (window),
(guint) property, prop_name),
g_free (prop_name)));
if (property == _gdk_selection_property)
_gdk_selection_property_delete (window);
else if (property == _wm_transient_for)
gdk_window_set_transient_for (window, _gdk_root);
else
{
prop_name = gdk_atom_name (property);
g_warning ("gdk_property_delete: General case (%s) not implemented",
prop_name);
g_free (prop_name);
}
}
/*
for reference copied from gdk/x11/gdkevents-x11.c
{ "Net/DoubleClickTime", "gtk-double-click-time" },
{ "Net/DoubleClickDistance", "gtk-double-click-distance" },
{ "Net/DndDragThreshold", "gtk-dnd-drag-threshold" },
{ "Gtk/CanChangeAccels", "gtk-can-change-accels" },
{ "Gtk/ColorPalette", "gtk-color-palette" },
{ "Gtk/FontName", "gtk-font-name" },
{ "Gtk/IconSizes", "gtk-icon-sizes" },
{ "Gtk/KeyThemeName", "gtk-key-theme-name" },
{ "Gtk/ToolbarStyle", "gtk-toolbar-style" },
{ "Gtk/ToolbarIconSize", "gtk-toolbar-icon-size" },
{ "Gtk/IMPreeditStyle", "gtk-im-preedit-style" },
{ "Gtk/IMStatusStyle", "gtk-im-status-style" },
{ "Net/CursorBlink", "gtk-cursor-blink" },
{ "Net/CursorBlinkTime", "gtk-cursor-blink-time" },
{ "Net/ThemeName", "gtk-theme-name" },
{ "Net/IconThemeName", "gtk-icon-theme-name" },
{ "Gtk/ButtonImages", "gtk-button-images" },
{ "Gtk/MenuImages", "gtk-menu-images" },
{ "Xft/Antialias", "gtk-xft-antialias" },
{ "Xft/Hinting", "gtk-xft-hinting" },
{ "Xft/HintStyle", "gtk-xft-hintstyle" },
{ "Xft/RGBA", "gtk-xft-rgba" },
{ "Xft/DPI", "gtk-xft-dpi" },
// more spread in gtk sources
gtk-entry-select-on-focus
gtk-cursor-blink
gtk-cursor-blink-time
gtk-split-cursor
*/
gboolean
gdk_screen_get_setting (GdkScreen *screen,
const gchar *name,
GValue *value)
{
g_return_val_if_fail (GDK_IS_SCREEN (screen), FALSE);
/*
* XXX : if these values get changed through the Windoze UI the
* respective gdk_events are not generated yet.
*/
if (strcmp ("gtk-theme-name", name) == 0)
{
g_value_set_string (value, "ms-windows");
}
else if (strcmp ("gtk-double-click-time", name) == 0)
{
gint i = GetDoubleClickTime ();
GDK_NOTE(MISC, g_print("gdk_screen_get_setting(\"%s\") : %d\n", name, i));
g_value_set_int (value, i);
return TRUE;
}
else if (strcmp ("gtk-double-click-distance", name) == 0)
{
gint i = MAX(GetSystemMetrics (SM_CXDOUBLECLK), GetSystemMetrics (SM_CYDOUBLECLK));
GDK_NOTE(MISC, g_print("gdk_screen_get_setting(\"%s\") : %d\n", name, i));
g_value_set_int (value, i);
return TRUE;
}
else if (strcmp ("gtk-dnd-drag-threshold", name) == 0)
{
gint i = MAX(GetSystemMetrics (SM_CXDRAG), GetSystemMetrics (SM_CYDRAG));
GDK_NOTE(MISC, g_print("gdk_screen_get_setting(\"%s\") : %d\n", name, i));
g_value_set_int (value, i);
return TRUE;
}
else if (strcmp ("gtk-split-cursor", name) == 0)
{
GDK_NOTE(MISC, g_print("gdk_screen_get_setting(\"%s\") : FALSE\n", name));
g_value_set_boolean (value, FALSE);
return TRUE;
}
else if (strcmp ("gtk-alternative-button-order", name) == 0)
{
GDK_NOTE(MISC, g_print("gdk_screen_get_setting(\"%s\") : TRUE\n", name));
g_value_set_boolean (value, TRUE);
return TRUE;
}
else if (strcmp ("gtk-alternative-sort-arrows", name) == 0)
{
GDK_NOTE(MISC, g_print("gdk_screen_get_setting(\"%s\") : TRUE\n", name));
g_value_set_boolean (value, TRUE);
return TRUE;
}
#if 0
/*
* With 'MS Sans Serif' as windows menu font (default on win98se) you'll get a
* bunch of :
* WARNING **: Couldn't load font "MS Sans Serif 8" falling back to "Sans 8"
* at least with testfilechooser (regardless of the bitmap check below)
* so just disabling this code seems to be the best we can do --hb
*/
else if (strcmp ("gtk-font-name", name) == 0)
{
NONCLIENTMETRICS ncm;
ncm.cbSize = sizeof(NONCLIENTMETRICS);
if (SystemParametersInfo (SPI_GETNONCLIENTMETRICS, ncm.cbSize, &ncm, FALSE))
{
/* Pango finally uses GetDeviceCaps to scale, we use simple
* approximation here.
*/
int nHeight = (0 > ncm.lfMenuFont.lfHeight ? -3*ncm.lfMenuFont.lfHeight/4 : 10);
if (OUT_STRING_PRECIS == ncm.lfMenuFont.lfOutPrecision)
GDK_NOTE(MISC, g_print("gdk_screen_get_setting(%s) : ignoring bitmap font '%s'\n",
name, ncm.lfMenuFont.lfFaceName));
else if (ncm.lfMenuFont.lfFaceName && strlen(ncm.lfMenuFont.lfFaceName) > 0 &&
/* Avoid issues like those described in bug #135098 */
g_utf8_validate (ncm.lfMenuFont.lfFaceName, -1, NULL))
{
char* s = g_strdup_printf ("%s %d", ncm.lfMenuFont.lfFaceName, nHeight);
GDK_NOTE(MISC, g_print("gdk_screen_get_setting(%s) : %s\n", name, s));
g_value_set_string (value, s);
g_free(s);
return TRUE;
}
}
}
#endif
GDK_NOTE(MISC, g_print("gdk_screen_get_setting(%s) not handled\n", name));
return FALSE;
}
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