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gtk2/gdk/win32/gdkproperty-win32.c
Chun-wei Fan 9e686d1fb5 gdkproperty-win32.c: Fix gtk-font-name handling 
...on Windows 8+ and when the system setting for non-Unicode programs do
not match the language version of Windows by falling back to using Pango.

This ensures that the correct font is used during these scenarios, so that
we minimize the risk of seeing garbled characters for texts that the system
code page does not support due to system peculiarties.  There might be a
way to support gtk-font-name handling using the native Windows APIs
directly on Windows 8+, but that needs to be investigated.

https://bugzilla.gnome.org/show_bug.cgi?id=726298
2014-03-28 21:06:14 +08:00

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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, see <http://www.gnu.org/licenses/>.
*/
/*
* 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"
#include "gdkwin32.h"
GdkAtom
_gdk_win32_display_manager_atom_intern (GdkDisplayManager *manager,
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;
}
gchar *
_gdk_win32_display_manager_get_atom_name (GdkDisplayManager *manager,
GdkAtom atom)
{
ATOM win32_atom;
gchar name[256];
if (GDK_NONE == atom) return g_strdup ("<none>");
else 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_win32_window_get_property (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_win32_window_change_property (GdkWindow *window,
GdkAtom property,
GdkAtom type,
gint format,
GdkPropMode mode,
const guchar *data,
gint nelements)
{
HGLOBAL hdata;
gint i, size;
guchar *ucptr;
wchar_t *wcptr, *p;
glong wclen;
GError *err = NULL;
g_return_if_fail (window != NULL);
g_return_if_fail (GDK_IS_WINDOW (window));
if (GDK_WINDOW_DESTROYED (window))
return;
GDK_NOTE (DND, {
gchar *prop_name = gdk_atom_name (property);
gchar *type_name = gdk_atom_name (type);
g_print ("gdk_property_change: %p %s %s %s %d*%d bits: %s\n",
GDK_WINDOW_HWND (window),
prop_name,
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 &&
format == 8 &&
mode == GDK_PROP_MODE_REPLACE)
{
if (type == _utf8_string)
{
if (!OpenClipboard (GDK_WINDOW_HWND (window)))
{
WIN32_API_FAILED ("OpenClipboard");
return;
}
wcptr = g_utf8_to_utf16 ((char *) data, nelements, NULL, &wclen, &err);
if (err != NULL)
{
g_warning ("Failed to convert utf8: %s", err->message);
g_clear_error (&err);
return;
}
wclen++; /* Terminating 0 */
size = wclen * 2;
for (i = 0; i < wclen; i++)
if (wcptr[i] == '\n' && (i == 0 || wcptr[i - 1] != '\r'))
size += 2;
if (!(hdata = GlobalAlloc (GMEM_MOVEABLE, size)))
{
WIN32_API_FAILED ("GlobalAlloc");
if (!CloseClipboard ())
WIN32_API_FAILED ("CloseClipboard");
g_free (wcptr);
return;
}
ucptr = GlobalLock (hdata);
p = (wchar_t *) ucptr;
for (i = 0; i < wclen; i++)
{
if (wcptr[i] == '\n' && (i == 0 || wcptr[i - 1] != '\r'))
*p++ = '\r';
*p++ = wcptr[i];
}
g_free (wcptr);
GlobalUnlock (hdata);
GDK_NOTE (DND, g_print ("... SetClipboardData(CF_UNICODETEXT,%p)\n",
hdata));
if (!SetClipboardData (CF_UNICODETEXT, hdata))
WIN32_API_FAILED ("SetClipboardData");
if (!CloseClipboard ())
WIN32_API_FAILED ("CloseClipboard");
}
else
{
/* We use delayed rendering for everything else than
* text. 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.
*/
GDK_NOTE (DND, g_print ("... delayed rendering\n"));
_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 if (property == _gdk_ole2_dnd)
{
/* Will happen only if gdkdnd-win32.c has OLE2 dnd support compiled in */
_gdk_win32_ole2_dnd_property_change (type, format, data, nelements);
}
else
g_warning ("gdk_property_change: General case not implemented");
}
void
_gdk_win32_window_delete_property (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 %s\n",
GDK_WINDOW_HWND (window),
prop_name);
g_free (prop_name);
});
if (property == _gdk_selection)
_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, from gdk/x11/gdksettings.c:
"Net/DoubleClickTime\0" "gtk-double-click-time\0"
"Net/DoubleClickDistance\0" "gtk-double-click-distance\0"
"Net/DndDragThreshold\0" "gtk-dnd-drag-threshold\0"
"Net/CursorBlink\0" "gtk-cursor-blink\0"
"Net/CursorBlinkTime\0" "gtk-cursor-blink-time\0"
"Net/ThemeName\0" "gtk-theme-name\0"
"Net/IconThemeName\0" "gtk-icon-theme-name\0"
"Gtk/ColorPalette\0" "gtk-color-palette\0"
"Gtk/FontName\0" "gtk-font-name\0"
"Gtk/KeyThemeName\0" "gtk-key-theme-name\0"
"Gtk/Modules\0" "gtk-modules\0"
"Gtk/CursorBlinkTimeout\0" "gtk-cursor-blink-timeout\0"
"Gtk/CursorThemeName\0" "gtk-cursor-theme-name\0"
"Gtk/CursorThemeSize\0" "gtk-cursor-theme-size\0"
"Gtk/ColorScheme\0" "gtk-color-scheme\0"
"Gtk/EnableAnimations\0" "gtk-enable-animations\0"
"Xft/Antialias\0" "gtk-xft-antialias\0"
"Xft/Hinting\0" "gtk-xft-hinting\0"
"Xft/HintStyle\0" "gtk-xft-hintstyle\0"
"Xft/RGBA\0" "gtk-xft-rgba\0"
"Xft/DPI\0" "gtk-xft-dpi\0"
"Gtk/EnableAccels\0" "gtk-enable-accels\0"
"Gtk/ScrolledWindowPlacement\0" "gtk-scrolled-window-placement\0"
"Gtk/IMModule\0" "gtk-im-module\0"
"Fontconfig/Timestamp\0" "gtk-fontconfig-timestamp\0"
"Net/SoundThemeName\0" "gtk-sound-theme-name\0"
"Net/EnableInputFeedbackSounds\0" "gtk-enable-input-feedback-sounds\0"
"Net/EnableEventSounds\0" "gtk-enable-event-sounds\0";
More, from various places in gtk sources:
gtk-entry-select-on-focus
gtk-split-cursor
*/
gboolean
_gdk_win32_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;
}
else if (strcmp ("gtk-shell-shows-desktop", 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-font-name", name) == 0)
{
NONCLIENTMETRICS ncm;
CPINFOEX cpinfoex_default, cpinfoex_curr_thread;
OSVERSIONINFO info;
BOOL result_default, result_curr_thread;
info.dwOSVersionInfoSize = sizeof (OSVERSIONINFO);
/* TODO: Fallback to using Pango on Windows 8 and later,
* as this method of handling gtk-font-name does not work
* well there, where garbled text will be displayed for texts
* that are not supported by the default menu font. Look for
* whether there is a better solution for this on Windows 8 and
* later
*/
if (!GetVersionEx (&info) ||
info.dwMajorVersion > 6 ||
info.dwMajorVersion == 6 && info.dwMinorVersion >= 2)
return FALSE;
/* check whether the system default ANSI codepage matches the
* ANSI code page of the running thread. If so, continue, otherwise
* fall back to using Pango to handle gtk-font-name
*/
result_default = GetCPInfoEx (CP_ACP, 0, &cpinfoex_default);
result_curr_thread = GetCPInfoEx (CP_THREAD_ACP, 0, &cpinfoex_curr_thread);
if (!result_default ||
!result_curr_thread ||
cpinfoex_default.CodePage != cpinfoex_curr_thread.CodePage)
return FALSE;
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;
}
}
}
return FALSE;
}
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