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gtk2/gdk/directfb/gdkevents-directfb.c
Michael David Emmel f94921838e Added new directfb backend
2006-02-05 04:04:29 +00:00

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/* GDK - The GIMP Drawing Kit
* Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
*
* 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.
*/
/*
* GTK+ DirectFB backend
* Copyright (C) 2001-2002 convergence integrated media GmbH
* Copyright (C) 2002-2004 convergence GmbH
* Written by Denis Oliver Kropp <dok@convergence.de> and
* Sven Neumann <sven@convergence.de>
*/
#include "config.h"
#include "gdk.h"
#include "gdkdirectfb.h"
#include "gdkprivate-directfb.h"
#include "gdkinternals.h"
#include "gdkkeysyms.h"
#include "gdkinput-directfb.h"
#include <string.h>
#ifndef __GDK_X_H__
#define __GDK_X_H__
gboolean gdk_net_wm_supports (GdkAtom property);
#endif
#include "gdkalias.h"
#define EventBuffer _gdk_display->buffer
#define DirectFB _gdk_display->directfb
#include "gdkaliasdef.c"
/*********************************************
* Functions for maintaining the event queue *
*********************************************/
static GdkEvent * gdk_event_translate (DFBWindowEvent *dfbevent,
GdkWindow *window);
/*
* Private variable declarations
*/
static GList *client_filters; /* Filters for client messages */
static void
dfb_events_process_window_event (DFBWindowEvent *event)
{
GdkWindow *window = gdk_directfb_window_id_table_lookup (event->window_id);
if (! window)
return;
gdk_event_translate (event, window);
}
static gboolean
gdk_event_send_client_message_by_window (GdkEvent *event,
GdkWindow *window)
{
GdkEvent *new_event;
g_return_val_if_fail(event != NULL, FALSE);
g_return_val_if_fail(GDK_IS_WINDOW(window), FALSE);
new_event = gdk_directfb_event_make (window, GDK_CLIENT_EVENT);
new_event->client.message_type = event->client.message_type;
new_event->client.data_format = event->client.data_format;
memcpy(&new_event->client.data,
&event->client.data,
sizeof(event->client.data));
return TRUE;
}
static void
dfb_events_dispatch (void)
{
GdkDisplay *display = gdk_display_get_default ();
GdkEvent *event;
while ((event = _gdk_event_unqueue (display)) != NULL)
{
if (_gdk_event_func)
(*_gdk_event_func) (event, _gdk_event_data);
gdk_event_free (event);
}
}
static gboolean
dfb_events_io_func (GIOChannel *channel,
GIOCondition condition,
gpointer data)
{
gsize i;
gsize read;
GIOStatus result;
DFBEvent buf[23];
DFBEvent *event;
result = g_io_channel_read_chars (channel,
(gchar *) buf, sizeof (buf), &read, NULL);
if (result == G_IO_STATUS_ERROR)
{
g_warning ("%s: GIOError occured", __FUNCTION__);
return TRUE;
}
read /= sizeof (DFBEvent);
for (i = 0, event = buf; i < read; i++, event++)
{
switch (event->clazz)
{
case DFEC_WINDOW:
dfb_events_process_window_event (&event->window);
break;
default:
break;
}
}
EventBuffer->Reset (EventBuffer);
dfb_events_dispatch ();
return TRUE;
}
void
_gdk_events_init (void)
{
GIOChannel *channel;
GSource *source;
DFBResult ret;
gint fd;
ret = DirectFB->CreateEventBuffer (DirectFB, &EventBuffer);
if (ret)
{
DirectFBError ("_gdk_events_init: "
"IDirectFB::CreateEventBuffer() failed", ret);
return;
}
ret = EventBuffer->CreateFileDescriptor (EventBuffer, &fd);
if (ret)
{
DirectFBError ("_gdk_events_init: "
"IDirectFBEventBuffer::CreateFileDescriptor() failed",
ret);
return;
}
channel = g_io_channel_unix_new (fd);
g_io_channel_set_encoding (channel, NULL, NULL);
g_io_channel_set_buffered (channel, FALSE);
source = g_io_create_watch (channel, G_IO_IN);
g_source_set_priority (source, G_PRIORITY_DEFAULT);
g_source_set_can_recurse (source, TRUE);
g_source_set_callback (source, (GSourceFunc) dfb_events_io_func, NULL, NULL);
g_source_attach (source, NULL);
g_source_unref (source);
}
gboolean
gdk_events_pending (void)
{
GdkDisplay *display = gdk_display_get_default ();
return _gdk_event_queue_find_first (display) ? TRUE : FALSE;
}
GdkEvent *
gdk_event_get_graphics_expose (GdkWindow *window)
{
GdkDisplay *display;
GList *list;
g_return_val_if_fail (GDK_IS_WINDOW (window), NULL);
display = gdk_drawable_get_display (GDK_DRAWABLE (window));
for (list = _gdk_event_queue_find_first (display); list; list = list->next)
{
GdkEvent *event = list->data;
if (event->type == GDK_EXPOSE && event->expose.window == window)
break;
}
if (list)
{
GdkEvent *retval = list->data;
_gdk_event_queue_remove_link (display, list);
g_list_free_1 (list);
return retval;
}
return NULL;
}
void
_gdk_events_queue (GdkDisplay *display)
{
}
void
gdk_flush (void)
{
gdk_display_flush ( GDK_DISPLAY_OBJECT(_gdk_display));
}
/* Sends a ClientMessage to all toplevel client windows */
gboolean
gdk_event_send_client_message_for_display (GdkDisplay *display,
GdkEvent *event,
guint32 xid)
{
GdkWindow *win = NULL;
gboolean ret = TRUE;
g_return_val_if_fail(event != NULL, FALSE);
win = gdk_window_lookup_for_display (display, (GdkNativeWindow) xid);
g_return_val_if_fail(win != NULL, FALSE);
if ((GDK_WINDOW_OBJECT(win)->window_type != GDK_WINDOW_CHILD) &&
(g_object_get_data (G_OBJECT (win), "gdk-window-child-handler")))
{
/* Managed window, check children */
GList *ltmp = NULL;
for (ltmp = GDK_WINDOW_OBJECT(win)->children; ltmp; ltmp = ltmp->next)
{
ret &= gdk_event_send_client_message_by_window (event,
GDK_WINDOW(ltmp->data));
}
}
else
{
ret &= gdk_event_send_client_message_by_window (event, win);
}
return ret;
}
/*****/
guint32
gdk_directfb_get_time (void)
{
GTimeVal tv;
g_get_current_time (&tv);
return (guint32) tv.tv_sec * 1000 + tv.tv_usec / 1000;
}
void
gdk_directfb_event_windows_add (GdkWindow *window)
{
GdkWindowImplDirectFB *impl;
g_return_if_fail (GDK_IS_WINDOW (window));
impl = GDK_WINDOW_IMPL_DIRECTFB (GDK_WINDOW_OBJECT (window)->impl);
if (!impl->window)
return;
if (EventBuffer)
impl->window->AttachEventBuffer (impl->window, EventBuffer);
else
impl->window->CreateEventBuffer (impl->window, &EventBuffer);
}
GdkWindow *
gdk_directfb_child_at (GdkWindow *window,
gint *winx,
gint *winy)
{
GdkWindowObject *private;
GList *list;
g_return_val_if_fail (GDK_IS_WINDOW (window), NULL);
private = GDK_WINDOW_OBJECT (window);
for (list = private->children; list; list = list->next)
{
GdkWindowObject *win = list->data;
if (GDK_WINDOW_IS_MAPPED (win) &&
*winx >= win->x &&
*winx < win->x + GDK_DRAWABLE_IMPL_DIRECTFB (win->impl)->width &&
*winy >= win->y &&
*winy < win->y + GDK_DRAWABLE_IMPL_DIRECTFB (win->impl)->height)
{
*winx -= win->x;
*winy -= win->y;
return gdk_directfb_child_at (GDK_WINDOW (win), winx, winy );
}
}
return window;
}
static GdkEvent *
gdk_event_translate (DFBWindowEvent *dfbevent,
GdkWindow *window)
{
GdkWindowObject *private;
GdkDisplay *display;
GdkEvent *event = NULL;
g_return_val_if_fail (dfbevent != NULL, NULL);
g_return_val_if_fail (GDK_IS_WINDOW (window), NULL);
private = GDK_WINDOW_OBJECT (window);
g_object_ref (G_OBJECT (window));
display = gdk_drawable_get_display (GDK_DRAWABLE (window));
switch (dfbevent->type)
{
case DWET_BUTTONDOWN:
case DWET_BUTTONUP:
{
static gboolean click_grab = FALSE;
GdkWindow *child;
gint wx, wy;
guint mask;
guint button;
_gdk_directfb_mouse_x = wx = dfbevent->cx;
_gdk_directfb_mouse_y = wy = dfbevent->cy;
switch (dfbevent->button)
{
case DIBI_LEFT:
button = 1;
mask = GDK_BUTTON1_MASK;
break;
case DIBI_MIDDLE:
button = 2;
mask = GDK_BUTTON2_MASK;
break;
case DIBI_RIGHT:
button = 3;
mask = GDK_BUTTON3_MASK;
break;
default:
button = dfbevent->button + 1;
mask = 0;
break;
}
child = gdk_directfb_child_at (_gdk_parent_root, &wx, &wy);
if (_gdk_directfb_pointer_grab_window &&
(_gdk_directfb_pointer_grab_events & (dfbevent->type ==
DWET_BUTTONDOWN ?
GDK_BUTTON_PRESS_MASK :
GDK_BUTTON_RELEASE_MASK)) &&
(_gdk_directfb_pointer_grab_owner_events == FALSE ||
child == _gdk_parent_root) )
{
GdkDrawableImplDirectFB *impl;
child = _gdk_directfb_pointer_grab_window;
impl = GDK_DRAWABLE_IMPL_DIRECTFB (GDK_WINDOW_OBJECT (child)->impl);
dfbevent->x = dfbevent->cx - impl->abs_x;
dfbevent->y = dfbevent->cy - impl->abs_y;
}
else if (!_gdk_directfb_pointer_grab_window ||
(_gdk_directfb_pointer_grab_owner_events == TRUE))
{
dfbevent->x = wx;
dfbevent->y = wy;
}
else
{
child = NULL;
}
if (dfbevent->type == DWET_BUTTONDOWN)
_gdk_directfb_modifiers |= mask;
else
_gdk_directfb_modifiers &= ~mask;
if (child)
{
event =
gdk_directfb_event_make (child,
dfbevent->type == DWET_BUTTONDOWN ?
GDK_BUTTON_PRESS : GDK_BUTTON_RELEASE);
event->button.x_root = _gdk_directfb_mouse_x;
event->button.y_root = _gdk_directfb_mouse_y;
event->button.x = dfbevent->x;
event->button.y = dfbevent->y;
event->button.state = _gdk_directfb_modifiers;
event->button.button = button;
event->button.device = display->core_pointer;
GDK_NOTE (EVENTS,
g_message ("button: %d at %d,%d %s with state 0x%08x",
event->button.button,
(int)event->button.x, (int)event->button.y,
dfbevent->type == DWET_BUTTONDOWN ?
"pressed" : "released",
_gdk_directfb_modifiers));
if (dfbevent->type == DWET_BUTTONDOWN)
_gdk_event_button_generate (display, event);
}
/* Handle implicit button grabs: */
if (dfbevent->type == DWET_BUTTONDOWN && !click_grab && child)
{
if (gdk_directfb_pointer_grab (child, FALSE,
gdk_window_get_events (child),
NULL, NULL,
GDK_CURRENT_TIME,
TRUE) == GDK_GRAB_SUCCESS)
click_grab = TRUE;
}
else if (dfbevent->type == DWET_BUTTONUP &&
!(_gdk_directfb_modifiers & (GDK_BUTTON1_MASK |
GDK_BUTTON2_MASK |
GDK_BUTTON3_MASK)) && click_grab)
{
gdk_directfb_pointer_ungrab (GDK_CURRENT_TIME, TRUE);
click_grab = FALSE;
}
}
break;
case DWET_MOTION:
{
GdkWindow *event_win=NULL;
GdkWindow *child;
_gdk_directfb_mouse_x = dfbevent->cx;
_gdk_directfb_mouse_y = dfbevent->cy;
//child = gdk_directfb_child_at (window, &dfbevent->x, &dfbevent->y);
/* Go all the way to root to catch popup menus */
int wx=_gdk_directfb_mouse_x;
int wy=_gdk_directfb_mouse_y;
child = gdk_directfb_child_at (_gdk_parent_root, &wx, &wy);
event_win = gdk_directfb_pointer_event_window (child, GDK_MOTION_NOTIFY);
if (event_win)
{
if (event_win == _gdk_directfb_pointer_grab_window) {
GdkDrawableImplDirectFB *impl;
child = _gdk_directfb_pointer_grab_window;
impl = GDK_DRAWABLE_IMPL_DIRECTFB (GDK_WINDOW_OBJECT (child)->impl);
dfbevent->x = _gdk_directfb_mouse_x - impl->abs_x;
dfbevent->y = _gdk_directfb_mouse_y - impl->abs_y;
}
event = gdk_directfb_event_make (child, GDK_MOTION_NOTIFY);
event->motion.x_root = _gdk_directfb_mouse_x;
event->motion.y_root = _gdk_directfb_mouse_y;
//event->motion.x = dfbevent->x;
//event->motion.y = dfbevent->y;
event->motion.x = wx;
event->motion.y = wy;
event->motion.state = _gdk_directfb_modifiers;
event->motion.is_hint = FALSE;
event->motion.device = display->core_pointer;
if (GDK_WINDOW_OBJECT (event_win)->event_mask &
GDK_POINTER_MOTION_HINT_MASK)
{
while (EventBuffer->PeekEvent (EventBuffer,
DFB_EVENT (dfbevent)) == DFB_OK
&& dfbevent->type == DWET_MOTION)
{
EventBuffer->GetEvent (EventBuffer, DFB_EVENT (dfbevent));
event->motion.is_hint = TRUE;
}
}
}
/* make sure crossing events go to the event window found */
GdkWindow *ev_win = ( event_win == NULL ) ? gdk_window_at_pointer (NULL,NULL) :event_win;
gdk_directfb_window_send_crossing_events (NULL,ev_win,GDK_CROSSING_NORMAL);
}
break;
case DWET_GOTFOCUS:
gdk_directfb_change_focus (window);
break;
case DWET_LOSTFOCUS:
gdk_directfb_change_focus (_gdk_parent_root);
break;
case DWET_POSITION:
{
GdkWindow *event_win;
private->x = dfbevent->x;
private->y = dfbevent->y;
event_win = gdk_directfb_other_event_window (window, GDK_CONFIGURE);
if (event_win)
{
event = gdk_directfb_event_make (event_win, GDK_CONFIGURE);
event->configure.x = dfbevent->x;
event->configure.y = dfbevent->y;
event->configure.width =
GDK_DRAWABLE_IMPL_DIRECTFB (private->impl)->width;
event->configure.height =
GDK_DRAWABLE_IMPL_DIRECTFB (private->impl)->height;
}
_gdk_directfb_calc_abs (window);
}
break;
case DWET_POSITION_SIZE:
private->x = dfbevent->x;
private->y = dfbevent->y;
/* fallthru */
case DWET_SIZE:
{
GdkDrawableImplDirectFB *impl;
GdkWindow *event_win;
GList *list;
impl = GDK_DRAWABLE_IMPL_DIRECTFB (private->impl);
event_win = gdk_directfb_other_event_window (window, GDK_CONFIGURE);
if (event_win)
{
event = gdk_directfb_event_make (event_win, GDK_CONFIGURE);
event->configure.x = private->x;
event->configure.y = private->y;
event->configure.width = dfbevent->w;
event->configure.height = dfbevent->h;
}
impl->width = dfbevent->w;
impl->height = dfbevent->h;
for (list = private->children; list; list = list->next)
{
GdkWindowObject *win;
GdkDrawableImplDirectFB *impl;
win = GDK_WINDOW_OBJECT (list->data);
impl = GDK_DRAWABLE_IMPL_DIRECTFB (win->impl);
_gdk_directfb_move_resize_child (GDK_WINDOW (win),
win->x, win->y,
impl->width, impl->height);
}
_gdk_directfb_calc_abs (window);
gdk_window_clear (window);
gdk_window_invalidate_rect (window, NULL, TRUE);
}
break;
case DWET_KEYDOWN:
case DWET_KEYUP:
{
GdkEventType type = (dfbevent->type == DWET_KEYUP ?
GDK_KEY_RELEASE : GDK_KEY_PRESS);
GdkWindow *event_win =
gdk_directfb_keyboard_event_window (gdk_directfb_window_find_focus (),
type);
if (event_win)
{
event = gdk_directfb_event_make (event_win, type);
gdk_directfb_translate_key_event (dfbevent, &event->key);
}
}
break;
case DWET_LEAVE:
_gdk_directfb_mouse_x = dfbevent->cx;
_gdk_directfb_mouse_y = dfbevent->cy;
gdk_directfb_window_send_crossing_events (NULL, _gdk_parent_root,
GDK_CROSSING_NORMAL);
if (gdk_directfb_apply_focus_opacity)
{
if (GDK_WINDOW_IS_MAPPED (window))
GDK_WINDOW_IMPL_DIRECTFB (private->impl)->window->SetOpacity
(GDK_WINDOW_IMPL_DIRECTFB (private->impl)->window,
(GDK_WINDOW_IMPL_DIRECTFB (private->impl)->opacity >> 1) +
(GDK_WINDOW_IMPL_DIRECTFB (private->impl)->opacity >> 2));
}
break;
case DWET_ENTER:
{
GdkWindow *child;
_gdk_directfb_mouse_x = dfbevent->cx;
_gdk_directfb_mouse_y = dfbevent->cy;
child = gdk_directfb_child_at (window, &dfbevent->x, &dfbevent->y);
gdk_directfb_window_send_crossing_events (NULL, child,
GDK_CROSSING_NORMAL);
if (gdk_directfb_apply_focus_opacity)
{
GDK_WINDOW_IMPL_DIRECTFB (private->impl)->window->SetOpacity
(GDK_WINDOW_IMPL_DIRECTFB (private->impl)->window,
GDK_WINDOW_IMPL_DIRECTFB (private->impl)->opacity);
}
}
break;
case DWET_CLOSE:
{
GdkWindow *event_win;
event_win = gdk_directfb_other_event_window (window, GDK_DELETE);
if (event_win)
event = gdk_directfb_event_make (event_win, GDK_DELETE);
}
break;
case DWET_DESTROYED:
{
GdkWindow *event_win;
event_win = gdk_directfb_other_event_window (window, GDK_DESTROY);
if (event_win)
event = gdk_directfb_event_make (event_win, GDK_DESTROY);
gdk_window_destroy_notify (window);
}
break;
case DWET_WHEEL:
{
GdkWindow *event_win;
_gdk_directfb_mouse_x = dfbevent->cx;
_gdk_directfb_mouse_y = dfbevent->cy;
if (_gdk_directfb_pointer_grab_window)
{
GdkDrawableImplDirectFB *impl;
event_win = _gdk_directfb_pointer_grab_window;
impl =
GDK_DRAWABLE_IMPL_DIRECTFB (GDK_WINDOW_OBJECT (event_win)->impl);
dfbevent->x = dfbevent->cx - impl->abs_x;
dfbevent->y = dfbevent->cy - impl->abs_y;
}
else
{
event_win = gdk_directfb_child_at (window,
&dfbevent->x, &dfbevent->y);
}
if (event_win)
{
event = gdk_directfb_event_make (event_win, GDK_SCROLL);
event->scroll.direction = (dfbevent->step < 0 ?
GDK_SCROLL_DOWN : GDK_SCROLL_UP);
event->scroll.x_root = _gdk_directfb_mouse_x;
event->scroll.y_root = _gdk_directfb_mouse_y;
event->scroll.x = dfbevent->x;
event->scroll.y = dfbevent->y;
event->scroll.state = _gdk_directfb_modifiers;
event->scroll.device = display->core_pointer;
}
}
break;
default:
g_message ("unhandled DirectFB windowing event 0x%08x", dfbevent->type);
}
g_object_unref (G_OBJECT (window));
return event;
}
gboolean
gdk_screen_get_setting (GdkScreen *screen,
const gchar *name,
GValue *value)
{
return FALSE;
}
void
gdk_display_add_client_message_filter (GdkDisplay *display,
GdkAtom message_type,
GdkFilterFunc func,
gpointer data)
{
/* XXX: display should be used */
GdkClientFilter *filter = g_new (GdkClientFilter, 1);
filter->type = message_type;
filter->function = func;
filter->data = data;
client_filters = g_list_append (client_filters, filter);
}
void
gdk_add_client_message_filter (GdkAtom message_type,
GdkFilterFunc func,
gpointer data)
{
gdk_display_add_client_message_filter (gdk_display_get_default (),
message_type, func, data);
}
void
gdk_screen_broadcast_client_message (GdkScreen *screen,
GdkEvent *sev)
{
GdkWindow *root_window;
GdkWindowObject *private;
GList *top_level = NULL;
g_return_if_fail (GDK_IS_SCREEN (screen));
g_return_if_fail(sev != NULL);
root_window = gdk_screen_get_root_window (screen);
g_return_if_fail(GDK_IS_WINDOW(root_window));
private = GDK_WINDOW_OBJECT (root_window);
for (top_level = private->children; top_level; top_level = top_level->next)
{
gdk_event_send_client_message_for_display (gdk_drawable_get_display(GDK_DRAWABLE(root_window)),
sev,
(guint32)(GDK_WINDOW_DFB_ID(GDK_WINDOW(top_level->data))));
}
}
/**
* gdk_net_wm_supports:
* @property: a property atom.
*
* This function is specific to the X11 backend of GDK, and indicates
* whether the window manager for the default screen supports a certain
* hint from the Extended Window Manager Hints Specification. See
* gdk_x11_screen_supports_net_wm_hint() for complete details.
*
* Return value: %TRUE if the window manager supports @property
**/
gboolean
gdk_net_wm_supports (GdkAtom property)
{
return FALSE;
}
#define __GDK_EVENTS_X11_C__
#include "gdkaliasdef.c"
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