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gtk2/gdk/win32/gdkproperty-win32.c
Christoph Reiter 9e7cc89f4a GDK W32: Always set gtk-font-name to the active UI font. Fixes #1484 
This makes apps use "Segoe UI 9" by default instead of whatever matches "Sans 10".
It also cleans up the code and uses some new pango API while at it.

This was previously disabled in 9e686d1fb5 because it led to a poor glyph coverage
on certain versions of Windows which don't default to "Segoe UI 9" (Chinese, Korean, ..)
because the font fallback list was missing in pango.

This is about to get fixed in https://gitlab.gnome.org/GNOME/pango/merge_requests/34
so enable it again when we detect a new enough pango version.
2018-12-07 09:32:14 +01:00

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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 <pango/pangowin32.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)
{
GdkWin32Selection *win32_sel = _gdk_win32_selection_get ();
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);
gchar *datastring = _gdk_win32_data_to_string (data, MIN (10, format*nelements/8));
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,
datastring);
g_free (datastring);
g_free (prop_name);
g_free (type_name);
});
#ifndef G_DISABLE_CHECKS
/* We should never come here for these types */
if (G_UNLIKELY (type == _gdk_win32_selection_atom (GDK_WIN32_ATOM_INDEX_COMPOUND_TEXT) ||
type == _gdk_win32_selection_atom (GDK_WIN32_ATOM_INDEX_SAVE_TARGETS)))
{
g_return_if_fail_warning (G_LOG_DOMAIN,
G_STRFUNC,
"change_property called with a bad type");
return;
}
#endif
if (property == _gdk_win32_selection_atom (GDK_WIN32_ATOM_INDEX_GDK_SELECTION) ||
property == _gdk_win32_selection_atom (GDK_WIN32_ATOM_INDEX_OLE2_DND) ||
property == _gdk_win32_selection_atom (GDK_WIN32_ATOM_INDEX_LOCAL_DND_SELECTION))
{
_gdk_win32_selection_property_change (win32_sel,
window,
property,
type,
format,
mode,
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_win32_selection_atom (GDK_WIN32_ATOM_INDEX_GDK_SELECTION) ||
property == _gdk_win32_selection_atom (GDK_WIN32_ATOM_INDEX_OLE2_DND))
_gdk_selection_property_delete (window);
else if (property == _gdk_win32_selection_atom (GDK_WIN32_ATOM_INDEX_WM_TRANSIENT_FOR))
{
GdkScreen *screen;
screen = gdk_window_get_screen (window);
gdk_window_set_transient_for (window, gdk_screen_get_root_window (screen));
}
else
{
prop_name = gdk_atom_name (property);
g_warning ("gdk_property_delete: General case (%s) not implemented",
prop_name);
g_free (prop_name);
}
}
static gchar*
_get_system_font_name (HDC hdc)
{
NONCLIENTMETRICSW ncm;
PangoFontDescription *font_desc;
gchar *result, *font_desc_string;
int logpixelsy;
gint font_size;
ncm.cbSize = sizeof(NONCLIENTMETRICSW);
if (!SystemParametersInfoW (SPI_GETNONCLIENTMETRICS, ncm.cbSize, &ncm, 0))
return NULL;
logpixelsy = GetDeviceCaps (hdc, LOGPIXELSY);
font_desc = pango_win32_font_description_from_logfontw (&ncm.lfMessageFont);
font_desc_string = pango_font_description_to_string (font_desc);
pango_font_description_free (font_desc);
/* https://docs.microsoft.com/en-us/windows/desktop/api/wingdi/ns-wingdi-taglogfonta */
font_size = -MulDiv (ncm.lfMessageFont.lfHeight, 72, logpixelsy);
result = g_strdup_printf ("%s %d", font_desc_string, font_size);
g_free (font_desc_string);
return result;
}
/*
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-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-xft-hinting", name) == 0)
{
GDK_NOTE(MISC, g_print ("gdk_screen_get_setting(\"%s\") : 1\n", name));
g_value_set_int (value, 1);
return TRUE;
}
else if (strcmp ("gtk-xft-antialias", name) == 0)
{
GDK_NOTE(MISC, g_print ("gdk_screen_get_setting(\"%s\") : 1\n", name));
g_value_set_int (value, 1);
return TRUE;
}
else if (strcmp ("gtk-xft-hintstyle", name) == 0)
{
g_value_set_static_string (value, "hintfull");
GDK_NOTE(MISC, g_print ("gdk_screen_get_setting(\"%s\") : %s\n", name, g_value_get_string (value)));
return TRUE;
}
else if (strcmp ("gtk-xft-rgba", name) == 0)
{
unsigned int orientation = 0;
if (SystemParametersInfoW (SPI_GETFONTSMOOTHINGORIENTATION, 0, &orientation, 0))
{
if (orientation == FE_FONTSMOOTHINGORIENTATIONRGB)
g_value_set_static_string (value, "rgb");
else if (orientation == FE_FONTSMOOTHINGORIENTATIONBGR)
g_value_set_static_string (value, "bgr");
else
g_value_set_static_string (value, "none");
}
else
g_value_set_static_string (value, "none");
GDK_NOTE(MISC, g_print ("gdk_screen_get_setting(\"%s\") : %s\n", name, g_value_get_string (value)));
return TRUE;
}
else if (strcmp ("gtk-font-name", name) == 0)
{
gchar *font_name = _get_system_font_name (_gdk_display_hdc);
if (font_name)
{
/* The pango font fallback list got fixed during 1.43, before that
* using anything but "Segoe UI" would lead to a poor glyph coverage */
if (pango_version_check (1, 43, 0) != NULL &&
g_ascii_strncasecmp (font_name, "Segoe UI", strlen ("Segoe UI")) != 0)
{
g_free (font_name);
return FALSE;
}
GDK_NOTE(MISC, g_print("gdk_screen_get_setting(\"%s\") : %s\n", name, font_name));
g_value_take_string (value, font_name);
return TRUE;
}
else
{
g_warning ("gdk_screen_get_setting: Detecting the system font failed");
return FALSE;
}
}
else if (strcmp ("gtk-im-module", name) == 0)
{
if (_gdk_input_locale_is_ime)
g_value_set_string (value, "ime");
else
g_value_set_string (value, "");
return TRUE;
}
return FALSE;
}
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