forked from AuroraMiddleware/gtk
c11ea42644
Right now we only support system DPI awareness in GTK4. In that case it makes sense to scale text with the DPI of the primary monitor, like done in GTK3. We plan to land support for proper fractional scaling in Gdk/Win32, so in the future the "gtk-xft-dpi" setting will be gathered as intended, i.e. for text magnification, as an a11y feature.
259 lines
8.9 KiB
C
259 lines
8.9 KiB
C
/* GDK - The GIMP Drawing Kit
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* Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
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* Copyright (C) 1998-2002 Tor Lillqvist
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library. If not, see <http://www.gnu.org/licenses/>.
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*/
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/*
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* Modified by the GTK+ Team and others 1997-2000. See the AUTHORS
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* file for a list of people on the GTK+ Team. See the ChangeLog
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* files for a list of changes. These files are distributed with
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* GTK+ at ftp://ftp.gtk.org/pub/gtk/.
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*/
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#include "config.h"
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#include <string.h>
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#include <stdlib.h>
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#include <glib/gprintf.h>
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#include <pango/pangowin32.h>
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#include "gdkdisplayprivate.h"
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#include "gdkprivate-win32.h"
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#include "gdkdisplay-win32.h"
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#include "gdkwin32.h"
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static char *
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_get_system_font_name (HDC hdc)
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{
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NONCLIENTMETRICSW ncm;
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PangoFontDescription *font_desc;
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char *result, *font_desc_string;
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int logpixelsy;
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int font_size;
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ncm.cbSize = sizeof(NONCLIENTMETRICSW);
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if (!SystemParametersInfoW (SPI_GETNONCLIENTMETRICS, ncm.cbSize, &ncm, 0))
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return NULL;
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logpixelsy = GetDeviceCaps (hdc, LOGPIXELSY);
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font_desc = pango_win32_font_description_from_logfontw (&ncm.lfMessageFont);
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font_desc_string = pango_font_description_to_string (font_desc);
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pango_font_description_free (font_desc);
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/* https://docs.microsoft.com/en-us/windows/desktop/api/wingdi/ns-wingdi-taglogfonta */
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font_size = -MulDiv (ncm.lfMessageFont.lfHeight, 72, logpixelsy);
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result = g_strdup_printf ("%s %d", font_desc_string, font_size);
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g_free (font_desc_string);
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return result;
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}
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/*
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For reference, from gdk/x11/gdksettings.c:
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"Net/DoubleClickTime\0" "gtk-double-click-time\0"
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"Net/DoubleClickDistance\0" "gtk-double-click-distance\0"
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"Net/DndDragThreshold\0" "gtk-dnd-drag-threshold\0"
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"Net/CursorBlink\0" "gtk-cursor-blink\0"
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"Net/CursorBlinkTime\0" "gtk-cursor-blink-time\0"
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"Net/ThemeName\0" "gtk-theme-name\0"
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"Net/IconThemeName\0" "gtk-icon-theme-name\0"
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"Gtk/ColorPalette\0" "gtk-color-palette\0"
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"Gtk/FontName\0" "gtk-font-name\0"
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"Gtk/KeyThemeName\0" "gtk-key-theme-name\0"
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"Gtk/Modules\0" "gtk-modules\0"
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"Gtk/CursorBlinkTimeout\0" "gtk-cursor-blink-timeout\0"
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"Gtk/CursorThemeName\0" "gtk-cursor-theme-name\0"
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"Gtk/CursorThemeSize\0" "gtk-cursor-theme-size\0"
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"Gtk/ColorScheme\0" "gtk-color-scheme\0"
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"Gtk/EnableAnimations\0" "gtk-enable-animations\0"
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"Xft/Antialias\0" "gtk-xft-antialias\0"
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"Xft/Hinting\0" "gtk-xft-hinting\0"
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"Xft/HintStyle\0" "gtk-xft-hintstyle\0"
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"Xft/RGBA\0" "gtk-xft-rgba\0"
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"Xft/DPI\0" "gtk-xft-dpi\0"
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"Gtk/EnableAccels\0" "gtk-enable-accels\0"
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"Gtk/ScrolledWindowPlacement\0" "gtk-scrolled-window-placement\0"
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"Gtk/IMModule\0" "gtk-im-module\0"
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"Fontconfig/Timestamp\0" "gtk-fontconfig-timestamp\0"
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"Net/SoundThemeName\0" "gtk-sound-theme-name\0"
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"Net/EnableInputFeedbackSounds\0" "gtk-enable-input-feedback-sounds\0"
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"Net/EnableEventSounds\0" "gtk-enable-event-sounds\0";
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More, from various places in gtk sources:
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gtk-entry-select-on-focus
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gtk-split-cursor
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*/
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gboolean
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_gdk_win32_get_setting (const char *name,
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GValue *value)
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{
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/*
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* XXX : if these values get changed through the Windoze UI the
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* respective gdk_events are not generated yet.
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*/
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if (strcmp ("gtk-double-click-time", name) == 0)
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{
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int i = GetDoubleClickTime ();
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GDK_NOTE(MISC, g_print("gdk_display_get_setting(\"%s\") : %d\n", name, i));
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g_value_set_int (value, i);
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return TRUE;
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}
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else if (strcmp ("gtk-double-click-distance", name) == 0)
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{
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int i = MAX(GetSystemMetrics (SM_CXDOUBLECLK), GetSystemMetrics (SM_CYDOUBLECLK));
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GDK_NOTE(MISC, g_print("gdk_display_get_setting(\"%s\") : %d\n", name, i));
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g_value_set_int (value, i);
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return TRUE;
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}
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else if (strcmp ("gtk-dnd-drag-threshold", name) == 0)
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{
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int i = MAX(GetSystemMetrics (SM_CXDRAG), GetSystemMetrics (SM_CYDRAG));
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GDK_NOTE(MISC, g_print("gdk_display_get_setting(\"%s\") : %d\n", name, i));
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g_value_set_int (value, i);
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return TRUE;
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}
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else if (strcmp ("gtk-split-cursor", name) == 0)
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{
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GDK_NOTE(MISC, g_print("gdk_display_get_setting(\"%s\") : FALSE\n", name));
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g_value_set_boolean (value, FALSE);
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return TRUE;
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}
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else if (strcmp ("gtk-alternative-button-order", name) == 0)
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{
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GDK_NOTE(MISC, g_print("gdk_display_get_setting(\"%s\") : TRUE\n", name));
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g_value_set_boolean (value, TRUE);
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return TRUE;
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}
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else if (strcmp ("gtk-alternative-sort-arrows", name) == 0)
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{
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GDK_NOTE(MISC, g_print("gdk_display_get_setting(\"%s\") : TRUE\n", name));
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g_value_set_boolean (value, TRUE);
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return TRUE;
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}
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else if (strcmp ("gtk-shell-shows-desktop", name) == 0)
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{
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GDK_NOTE(MISC, g_print("gdk_display_get_setting(\"%s\") : TRUE\n", name));
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g_value_set_boolean (value, TRUE);
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return TRUE;
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}
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else if (strcmp ("gtk-xft-hinting", name) == 0)
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{
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GDK_NOTE(MISC, g_print ("gdk_screen_get_setting(\"%s\") : 1\n", name));
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g_value_set_int (value, 1);
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return TRUE;
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}
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else if (strcmp ("gtk-xft-antialias", name) == 0)
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{
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GDK_NOTE(MISC, g_print ("gdk_screen_get_setting(\"%s\") : 1\n", name));
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g_value_set_int (value, 1);
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return TRUE;
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}
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else if (strcmp ("gtk-xft-dpi", name) == 0)
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{
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GdkWin32Display *display = GDK_WIN32_DISPLAY (_gdk_display);
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if (display->dpi_aware_type == PROCESS_SYSTEM_DPI_AWARE &&
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!display->has_fixed_scale)
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{
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int dpi = GetDeviceCaps (GetDC (NULL), LOGPIXELSX);
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if (dpi >= 96)
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{
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int xft_dpi = 1024 * dpi / display->surface_scale;
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g_value_set_int (value, xft_dpi);
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GDK_NOTE(MISC, g_print ("gdk_screen_get_setting(\"%s\") : %d\n", name, xft_dpi));
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return TRUE;
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}
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}
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return FALSE;
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}
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else if (strcmp ("gtk-xft-hintstyle", name) == 0)
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{
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g_value_set_static_string (value, "hintfull");
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GDK_NOTE(MISC, g_print ("gdk_screen_get_setting(\"%s\") : %s\n", name, g_value_get_string (value)));
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return TRUE;
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}
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else if (strcmp ("gtk-xft-rgba", name) == 0)
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{
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unsigned int orientation = 0;
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if (SystemParametersInfoW (SPI_GETFONTSMOOTHINGORIENTATION, 0, &orientation, 0))
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{
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if (orientation == FE_FONTSMOOTHINGORIENTATIONRGB)
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g_value_set_static_string (value, "rgb");
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else if (orientation == FE_FONTSMOOTHINGORIENTATIONBGR)
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g_value_set_static_string (value, "bgr");
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else
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g_value_set_static_string (value, "none");
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}
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else
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g_value_set_static_string (value, "none");
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GDK_NOTE(MISC, g_print ("gdk_screen_get_setting(\"%s\") : %s\n", name, g_value_get_string (value)));
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return TRUE;
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}
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else if (strcmp ("gtk-font-name", name) == 0)
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{
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char *font_name = _get_system_font_name (_gdk_display_hdc);
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if (font_name)
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{
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/* The pango font fallback list got fixed during 1.43, before that
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* using anything but "Segoe UI" would lead to a poor glyph coverage */
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if (pango_version_check (1, 43, 0) != NULL &&
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g_ascii_strncasecmp (font_name, "Segoe UI", strlen ("Segoe UI")) != 0)
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{
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g_free (font_name);
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return FALSE;
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}
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GDK_NOTE(MISC, g_print("gdk_screen_get_setting(\"%s\") : %s\n", name, font_name));
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g_value_take_string (value, font_name);
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return TRUE;
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}
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else
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{
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g_warning ("gdk_screen_get_setting: Detecting the system font failed");
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return FALSE;
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}
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}
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else if (strcmp ("gtk-im-module", name) == 0)
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{
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if (_gdk_input_locale_is_ime)
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g_value_set_static_string (value, "ime");
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else
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g_value_set_static_string (value, "");
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return TRUE;
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}
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else if (strcmp ("gtk-overlay-scrolling", name) == 0)
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{
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DWORD val = 0;
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DWORD sz = sizeof (val);
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LSTATUS ret = 0;
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ret = RegGetValueW (HKEY_CURRENT_USER, L"Control Panel\\Accessibility", L"DynamicScrollbars", RRF_RT_DWORD, NULL, &val, &sz);
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if (ret == ERROR_SUCCESS)
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{
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g_value_set_boolean (value, val != 0);
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return TRUE;
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}
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}
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return FALSE;
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}
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