gtk/gdk/win32/gdkdisplay-win32.c
Руслан Ижбулатов a23c29c0fb W32: Implement rudimentary WM_NCHITTEST handling
Use (cairo) input shape of the window to check whether a point is inside or not
inside the window.
If it is, let the default window procedure do its thing (which seems to be
working all right in all known cases).
If it isn't, override the default window procedure and tell WM what we think.

Don't do any of the above if the window has CSD-incompatible styles (WS_BORDER
or WS_THICKFRAME).

This is a crude kind of substitute for window input shape support (which W32
does not seem to have). Still probably enough to be positive about input shapes
support.

https://bugzilla.gnome.org/show_bug.cgi?id=733679
2014-07-29 01:31:49 +00:00

685 lines
19 KiB
C

/* GDK - The GIMP Drawing Kit
* Copyright (C) 2002,2005 Hans Breuer
* Copyright (C) 2003 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/>.
*/
#include "config.h"
#include "gdk.h"
#include "gdkprivate-win32.h"
#include "gdkdisplayprivate.h"
#include "gdkwin32display.h"
#include "gdkwin32screen.h"
#include "gdkwin32window.h"
#include "gdkwin32.h"
#define HAVE_MONITOR_INFO
#if defined(_MSC_VER) && (WINVER < 0x500) && (WINVER > 0x0400)
#include <multimon.h>
#elif defined(_MSC_VER) && (WINVER <= 0x0400)
#undef HAVE_MONITOR_INFO
#endif
static gulong
gdk_win32_display_get_next_serial (GdkDisplay *display)
{
return 0;
}
#ifdef HAVE_MONITOR_INFO
static BOOL CALLBACK
count_monitor (HMONITOR hmonitor,
HDC hdc,
LPRECT rect,
LPARAM data)
{
gint *n = (gint *) data;
(*n)++;
return TRUE;
}
static BOOL CALLBACK
enum_monitor (HMONITOR hmonitor,
HDC hdc,
LPRECT rect,
LPARAM data)
{
/* The struct MONITORINFOEX definition is for some reason different
* in the winuser.h bundled with mingw64 from that in MSDN and the
* official 32-bit mingw (the MONITORINFO part is in a separate "mi"
* member). So to keep this easily compileable with either, repeat
* the MSDN definition it here.
*/
typedef struct tagMONITORINFOEXA2 {
DWORD cbSize;
RECT rcMonitor;
RECT rcWork;
DWORD dwFlags;
CHAR szDevice[CCHDEVICENAME];
} MONITORINFOEXA2;
MONITORINFOEXA2 monitor_info;
HDC hDC;
gint *index = (gint *) data;
GdkWin32Monitor *monitor;
g_assert (*index < _gdk_num_monitors);
monitor = _gdk_monitors + *index;
monitor_info.cbSize = sizeof (MONITORINFOEX);
GetMonitorInfoA (hmonitor, (MONITORINFO *) &monitor_info);
#ifndef MONITORINFOF_PRIMARY
#define MONITORINFOF_PRIMARY 1
#endif
monitor->name = g_strdup (monitor_info.szDevice);
hDC = CreateDCA ("DISPLAY", monitor_info.szDevice, NULL, NULL);
monitor->width_mm = GetDeviceCaps (hDC, HORZSIZE);
monitor->height_mm = GetDeviceCaps (hDC, VERTSIZE);
DeleteDC (hDC);
monitor->rect.x = monitor_info.rcMonitor.left;
monitor->rect.y = monitor_info.rcMonitor.top;
monitor->rect.width = monitor_info.rcMonitor.right - monitor_info.rcMonitor.left;
monitor->rect.height = monitor_info.rcMonitor.bottom - monitor_info.rcMonitor.top;
if (monitor_info.dwFlags & MONITORINFOF_PRIMARY &&
*index != 0)
{
/* Put primary monitor at index 0, just in case somebody needs
* to know which one is the primary.
*/
GdkWin32Monitor temp = *monitor;
*monitor = _gdk_monitors[0];
_gdk_monitors[0] = temp;
}
(*index)++;
return TRUE;
}
#endif /* HAVE_MONITOR_INFO */
void
_gdk_monitor_init (void)
{
#ifdef HAVE_MONITOR_INFO
gint i, index;
_gdk_num_monitors = 0;
EnumDisplayMonitors (NULL, NULL, count_monitor, (LPARAM) &_gdk_num_monitors);
_gdk_monitors = g_renew (GdkWin32Monitor, _gdk_monitors, _gdk_num_monitors);
index = 0;
EnumDisplayMonitors (NULL, NULL, enum_monitor, (LPARAM) &index);
_gdk_offset_x = G_MININT;
_gdk_offset_y = G_MININT;
/* Calculate offset */
for (i = 0; i < _gdk_num_monitors; i++)
{
_gdk_offset_x = MAX (_gdk_offset_x, -_gdk_monitors[i].rect.x);
_gdk_offset_y = MAX (_gdk_offset_y, -_gdk_monitors[i].rect.y);
}
GDK_NOTE (MISC, g_print ("Multi-monitor offset: (%d,%d)\n",
_gdk_offset_x, _gdk_offset_y));
/* Translate monitor coords into GDK coordinate space */
for (i = 0; i < _gdk_num_monitors; i++)
{
_gdk_monitors[i].rect.x += _gdk_offset_x;
_gdk_monitors[i].rect.y += _gdk_offset_y;
GDK_NOTE (MISC, g_print ("Monitor %d: %dx%d@%+d%+d\n",
i, _gdk_monitors[i].rect.width,
_gdk_monitors[i].rect.height,
_gdk_monitors[i].rect.x,
_gdk_monitors[i].rect.y));
}
#else
HDC hDC;
_gdk_num_monitors = 1;
_gdk_monitors = g_renew (GdkWin32Monitor, _gdk_monitors, 1);
_gdk_monitors[0].name = g_strdup ("DISPLAY");
hDC = GetDC (NULL);
_gdk_monitors[0].width_mm = GetDeviceCaps (hDC, HORZSIZE);
_gdk_monitors[0].height_mm = GetDeviceCaps (hDC, VERTSIZE);
ReleaseDC (NULL, hDC);
_gdk_monitors[0].rect.x = 0;
_gdk_monitors[0].rect.y = 0;
_gdk_monitors[0].rect.width = GetSystemMetrics (SM_CXSCREEN);
_gdk_monitors[0].rect.height = GetSystemMetrics (SM_CYSCREEN);
_gdk_offset_x = 0;
_gdk_offset_y = 0;
#endif
}
GdkDisplay *
_gdk_win32_display_open (const gchar *display_name)
{
GDK_NOTE (MISC, g_print ("gdk_display_open: %s\n", (display_name ? display_name : "NULL")));
if (display_name == NULL ||
g_ascii_strcasecmp (display_name,
gdk_display_get_name (_gdk_display)) == 0)
{
if (_gdk_display != NULL)
{
GDK_NOTE (MISC, g_print ("... return _gdk_display\n"));
return _gdk_display;
}
}
else
{
GDK_NOTE (MISC, g_print ("... return NULL\n"));
return NULL;
}
_gdk_display = g_object_new (GDK_TYPE_WIN32_DISPLAY, NULL);
_gdk_screen = g_object_new (GDK_TYPE_WIN32_SCREEN, NULL);
_gdk_monitor_init ();
_gdk_visual_init (_gdk_screen);
_gdk_windowing_window_init (_gdk_screen);
_gdk_events_init ();
_gdk_input_init (_gdk_display);
_gdk_dnd_init ();
/* Precalculate display name */
(void) gdk_display_get_name (_gdk_display);
g_signal_emit_by_name (_gdk_display, "opened");
GDK_NOTE (MISC, g_print ("... _gdk_display now set up\n"));
return _gdk_display;
}
struct _GdkWin32Display
{
GdkDisplay display;
};
struct _GdkWin32DisplayClass
{
GdkDisplayClass display_class;
};
G_DEFINE_TYPE (GdkWin32Display, gdk_win32_display, GDK_TYPE_DISPLAY)
static const gchar *
gdk_win32_display_get_name (GdkDisplay *display)
{
HDESK hdesk = GetThreadDesktop (GetCurrentThreadId ());
char dummy;
char *desktop_name;
HWINSTA hwinsta = GetProcessWindowStation ();
char *window_station_name;
DWORD n;
DWORD session_id;
char *display_name;
static const char *display_name_cache = NULL;
typedef BOOL (WINAPI *PFN_ProcessIdToSessionId) (DWORD, DWORD *);
PFN_ProcessIdToSessionId processIdToSessionId;
g_return_val_if_fail (GDK_IS_DISPLAY (display), NULL);
if (display_name_cache != NULL)
return display_name_cache;
n = 0;
GetUserObjectInformation (hdesk, UOI_NAME, &dummy, 0, &n);
if (n == 0)
desktop_name = "Default";
else
{
n++;
desktop_name = g_alloca (n + 1);
memset (desktop_name, 0, n + 1);
if (!GetUserObjectInformation (hdesk, UOI_NAME, desktop_name, n, &n))
desktop_name = "Default";
}
n = 0;
GetUserObjectInformation (hwinsta, UOI_NAME, &dummy, 0, &n);
if (n == 0)
window_station_name = "WinSta0";
else
{
n++;
window_station_name = g_alloca (n + 1);
memset (window_station_name, 0, n + 1);
if (!GetUserObjectInformation (hwinsta, UOI_NAME, window_station_name, n, &n))
window_station_name = "WinSta0";
}
processIdToSessionId = (PFN_ProcessIdToSessionId) GetProcAddress (GetModuleHandle ("kernel32.dll"), "ProcessIdToSessionId");
if (!processIdToSessionId || !processIdToSessionId (GetCurrentProcessId (), &session_id))
session_id = 0;
display_name = g_strdup_printf ("%ld\\%s\\%s",
session_id,
window_station_name,
desktop_name);
GDK_NOTE (MISC, g_print ("gdk_win32_display_get_name: %s\n", display_name));
display_name_cache = display_name;
return display_name_cache;
}
static GdkScreen *
gdk_win32_display_get_default_screen (GdkDisplay *display)
{
g_return_val_if_fail (GDK_IS_DISPLAY (display), NULL);
return _gdk_screen;
}
static GdkWindow *
gdk_win32_display_get_default_group (GdkDisplay *display)
{
g_return_val_if_fail (GDK_IS_DISPLAY (display), NULL);
g_warning ("gdk_display_get_default_group not yet implemented");
return NULL;
}
static gboolean
gdk_win32_display_supports_selection_notification (GdkDisplay *display)
{
g_return_val_if_fail (GDK_IS_DISPLAY (display), FALSE);
return TRUE;
}
static HWND _hwnd_next_viewer = NULL;
static int debug_indent = 0;
/*
* maybe this should be integrated with the default message loop - or maybe not ;-)
*/
static LRESULT CALLBACK
inner_clipboard_window_procedure (HWND hwnd,
UINT message,
WPARAM wparam,
LPARAM lparam)
{
switch (message)
{
case WM_DESTROY: /* remove us from chain */
{
ChangeClipboardChain (hwnd, _hwnd_next_viewer);
PostQuitMessage (0);
return 0;
}
case WM_CHANGECBCHAIN:
{
HWND hwndRemove = (HWND) wparam; /* handle of window being removed */
HWND hwndNext = (HWND) lparam; /* handle of next window in chain */
if (hwndRemove == _hwnd_next_viewer)
_hwnd_next_viewer = hwndNext == hwnd ? NULL : hwndNext;
else if (_hwnd_next_viewer != NULL)
return SendMessage (_hwnd_next_viewer, message, wparam, lparam);
return 0;
}
#ifdef WM_CLIPBOARDUPDATE
case WM_CLIPBOARDUPDATE:
#endif
case WM_DRAWCLIPBOARD:
{
int success;
HWND hwndOwner;
#ifdef G_ENABLE_DEBUG
UINT nFormat = 0;
#endif
GdkEvent *event;
GdkWindow *owner;
success = OpenClipboard (hwnd);
g_return_val_if_fail (success, 0);
hwndOwner = GetClipboardOwner ();
owner = gdk_win32_window_lookup_for_display (_gdk_display, hwndOwner);
if (owner == NULL)
owner = gdk_win32_window_foreign_new_for_display (_gdk_display, hwndOwner);
GDK_NOTE (DND, g_print (" drawclipboard owner: %p", hwndOwner));
#ifdef G_ENABLE_DEBUG
if (_gdk_debug_flags & GDK_DEBUG_DND)
{
while ((nFormat = EnumClipboardFormats (nFormat)) != 0)
g_print ("%s ", _gdk_win32_cf_to_string (nFormat));
}
#endif
GDK_NOTE (DND, g_print (" \n"));
event = gdk_event_new (GDK_OWNER_CHANGE);
event->owner_change.window = _gdk_root;
event->owner_change.owner = owner;
event->owner_change.reason = GDK_OWNER_CHANGE_NEW_OWNER;
event->owner_change.selection = GDK_SELECTION_CLIPBOARD;
event->owner_change.time = _gdk_win32_get_next_tick (0);
event->owner_change.selection_time = GDK_CURRENT_TIME;
_gdk_win32_append_event (event);
CloseClipboard ();
if (_hwnd_next_viewer != NULL)
return SendMessage (_hwnd_next_viewer, message, wparam, lparam);
/* clear error to avoid confusing SetClipboardViewer() return */
SetLastError (0);
return 0;
}
default:
/* Otherwise call DefWindowProcW(). */
GDK_NOTE (EVENTS, g_print (" DefWindowProcW"));
return DefWindowProc (hwnd, message, wparam, lparam);
}
}
static LRESULT CALLBACK
_clipboard_window_procedure (HWND hwnd,
UINT message,
WPARAM wparam,
LPARAM lparam)
{
LRESULT retval;
GDK_NOTE (EVENTS, g_print ("%s%*s%s %p",
(debug_indent > 0 ? "\n" : ""),
debug_indent, "",
_gdk_win32_message_to_string (message), hwnd));
debug_indent += 2;
retval = inner_clipboard_window_procedure (hwnd, message, wparam, lparam);
debug_indent -= 2;
GDK_NOTE (EVENTS, g_print (" => %I64d%s", (gint64) retval, (debug_indent == 0 ? "\n" : "")));
return retval;
}
/*
* Creates a hidden window and adds it to the clipboard chain
*/
static HWND
_gdk_win32_register_clipboard_notification (void)
{
WNDCLASS wclass = { 0, };
HWND hwnd;
ATOM klass;
wclass.lpszClassName = "GdkClipboardNotification";
wclass.lpfnWndProc = _clipboard_window_procedure;
wclass.hInstance = _gdk_app_hmodule;
klass = RegisterClass (&wclass);
if (!klass)
return NULL;
hwnd = CreateWindow (MAKEINTRESOURCE (klass),
NULL, WS_POPUP,
0, 0, 0, 0, NULL, NULL,
_gdk_app_hmodule, NULL);
if (!hwnd)
goto failed;
SetLastError (0);
_hwnd_next_viewer = SetClipboardViewer (hwnd);
if (_hwnd_next_viewer == NULL && GetLastError() != 0)
goto failed;
/* FIXME: http://msdn.microsoft.com/en-us/library/ms649033(v=VS.85).aspx */
/* This is only supported by Vista, and not yet by mingw64 */
/* if (AddClipboardFormatListener (hwnd) == FALSE) */
/* goto failed; */
return hwnd;
failed:
g_critical ("Failed to install clipboard viewer");
UnregisterClass (MAKEINTRESOURCE (klass), _gdk_app_hmodule);
return NULL;
}
static gboolean
gdk_win32_display_request_selection_notification (GdkDisplay *display,
GdkAtom selection)
{
static HWND hwndViewer = NULL;
gboolean ret = FALSE;
GDK_NOTE (DND,
g_print ("gdk_display_request_selection_notification (..., %s)",
gdk_atom_name (selection)));
if (selection == GDK_SELECTION_CLIPBOARD ||
selection == GDK_SELECTION_PRIMARY)
{
if (!hwndViewer)
{
hwndViewer = _gdk_win32_register_clipboard_notification ();
GDK_NOTE (DND, g_print (" registered"));
}
ret = (hwndViewer != NULL);
}
else
{
GDK_NOTE (DND, g_print (" unsupported"));
ret = FALSE;
}
GDK_NOTE (DND, g_print (" -> %s\n", ret ? "TRUE" : "FALSE"));
return ret;
}
static gboolean
gdk_win32_display_supports_clipboard_persistence (GdkDisplay *display)
{
return FALSE;
}
static void
gdk_win32_display_store_clipboard (GdkDisplay *display,
GdkWindow *clipboard_window,
guint32 time_,
const GdkAtom *targets,
gint n_targets)
{
}
static gboolean
gdk_win32_display_supports_shapes (GdkDisplay *display)
{
g_return_val_if_fail (GDK_IS_DISPLAY (display), FALSE);
return TRUE;
}
static gboolean
gdk_win32_display_supports_input_shapes (GdkDisplay *display)
{
g_return_val_if_fail (GDK_IS_DISPLAY (display), FALSE);
/* Partially supported, see WM_NCHITTEST handler. */
return TRUE;
}
static gboolean
gdk_win32_display_supports_composite (GdkDisplay *display)
{
return FALSE;
}
static void
gdk_win32_display_beep (GdkDisplay *display)
{
g_return_if_fail (display == gdk_display_get_default());
if (!MessageBeep (-1))
Beep(1000, 50);
}
static void
gdk_win32_display_flush (GdkDisplay * display)
{
g_return_if_fail (display == _gdk_display);
GdiFlush ();
}
static void
gdk_win32_display_sync (GdkDisplay * display)
{
g_return_if_fail (display == _gdk_display);
GdiFlush ();
}
static void
gdk_win32_display_dispose (GObject *object)
{
}
static void
gdk_win32_display_finalize (GObject *object)
{
}
static void
gdk_win32_display_init(GdkWin32Display *display)
{
}
static void
gdk_win32_display_before_process_all_updates (GdkDisplay *display)
{
/* nothing */
}
static void
gdk_win32_display_after_process_all_updates (GdkDisplay *display)
{
/* nothing */
}
static void
gdk_win32_display_notify_startup_complete (GdkDisplay *display,
const gchar *startup_id)
{
/* nothing */
}
static void
gdk_win32_display_event_data_copy (GdkDisplay *display,
const GdkEvent *src,
GdkEvent *dst)
{
/* nothing */
}
static void
gdk_win32_display_event_data_free (GdkDisplay *display,
GdkEvent *event)
{
/* nothing */
}
static void
gdk_win32_display_push_error_trap (GdkDisplay *display)
{
/* nothing */
}
static gint
gdk_win32_display_pop_error_trap (GdkDisplay *display,
gboolean ignored)
{
return 0;
}
static void
gdk_win32_display_class_init (GdkWin32DisplayClass *klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
GdkDisplayClass *display_class = GDK_DISPLAY_CLASS (klass);
object_class->dispose = gdk_win32_display_dispose;
object_class->finalize = gdk_win32_display_finalize;
display_class->window_type = GDK_TYPE_WIN32_WINDOW;
display_class->get_name = gdk_win32_display_get_name;
display_class->get_default_screen = gdk_win32_display_get_default_screen;
display_class->beep = gdk_win32_display_beep;
display_class->sync = gdk_win32_display_sync;
display_class->flush = gdk_win32_display_flush;
display_class->has_pending = _gdk_win32_display_has_pending;
display_class->queue_events = _gdk_win32_display_queue_events;
display_class->get_default_group = gdk_win32_display_get_default_group;
display_class->supports_selection_notification = gdk_win32_display_supports_selection_notification;
display_class->request_selection_notification = gdk_win32_display_request_selection_notification;
display_class->supports_clipboard_persistence = gdk_win32_display_supports_clipboard_persistence;
display_class->store_clipboard = gdk_win32_display_store_clipboard;
display_class->supports_shapes = gdk_win32_display_supports_shapes;
display_class->supports_input_shapes = gdk_win32_display_supports_input_shapes;
display_class->supports_composite = gdk_win32_display_supports_composite;
display_class->list_devices = _gdk_win32_display_list_devices;
//? display_class->get_app_launch_context = _gdk_win32_display_get_app_launch_context;
display_class->get_cursor_for_type = _gdk_win32_display_get_cursor_for_type;
display_class->get_cursor_for_name = _gdk_win32_display_get_cursor_for_name;
display_class->get_cursor_for_surface = _gdk_win32_display_get_cursor_for_surface;
display_class->get_default_cursor_size = _gdk_win32_display_get_default_cursor_size;
display_class->get_maximal_cursor_size = _gdk_win32_display_get_maximal_cursor_size;
display_class->supports_cursor_alpha = _gdk_win32_display_supports_cursor_alpha;
display_class->supports_cursor_color = _gdk_win32_display_supports_cursor_color;
display_class->before_process_all_updates = gdk_win32_display_before_process_all_updates;
display_class->after_process_all_updates = gdk_win32_display_after_process_all_updates;
display_class->get_next_serial = gdk_win32_display_get_next_serial;
display_class->notify_startup_complete = gdk_win32_display_notify_startup_complete;
display_class->event_data_copy = gdk_win32_display_event_data_copy;
display_class->event_data_free = gdk_win32_display_event_data_free;
display_class->create_window_impl = _gdk_win32_display_create_window_impl;
display_class->get_keymap = _gdk_win32_display_get_keymap;
display_class->push_error_trap = gdk_win32_display_push_error_trap;
display_class->pop_error_trap = gdk_win32_display_pop_error_trap;
display_class->get_selection_owner = _gdk_win32_display_get_selection_owner;
display_class->set_selection_owner = _gdk_win32_display_set_selection_owner;
display_class->send_selection_notify = _gdk_win32_display_send_selection_notify;
display_class->get_selection_property = _gdk_win32_display_get_selection_property;
display_class->convert_selection = _gdk_win32_display_convert_selection;
display_class->text_property_to_utf8_list = _gdk_win32_display_text_property_to_utf8_list;
display_class->utf8_to_string_target = _gdk_win32_display_utf8_to_string_target;
_gdk_win32_windowing_init ();
}