mirror of
https://gitlab.gnome.org/GNOME/gtk.git
synced 2024-11-14 04:31:09 +00:00
384 lines
9.8 KiB
C
384 lines
9.8 KiB
C
/* 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. 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"
|
|
|
|
#define GDK_PIXBUF_ENABLE_BACKEND
|
|
|
|
#include <string.h>
|
|
|
|
#include "gdkprivate-wayland.h"
|
|
#include "gdkcursorprivate.h"
|
|
#include "gdkdisplay-wayland.h"
|
|
#include "gdkwayland.h"
|
|
#include <gdk-pixbuf/gdk-pixbuf.h>
|
|
|
|
#include <sys/mman.h>
|
|
|
|
#define GDK_TYPE_WAYLAND_CURSOR (_gdk_wayland_cursor_get_type ())
|
|
#define GDK_WAYLAND_CURSOR(object) (G_TYPE_CHECK_INSTANCE_CAST ((object), GDK_TYPE_WAYLAND_CURSOR, GdkWaylandCursor))
|
|
#define GDK_WAYLAND_CURSOR_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GDK_TYPE_WAYLAND_CURSOR, GdkWaylandCursorClass))
|
|
#define GDK_IS_WAYLAND_CURSOR(object) (G_TYPE_CHECK_INSTANCE_TYPE ((object), GDK_TYPE_WAYLAND_CURSOR))
|
|
#define GDK_IS_WAYLAND_CURSOR_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GDK_TYPE_WAYLAND_CURSOR))
|
|
#define GDK_WAYLAND_CURSOR_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GDK_TYPE_WAYLAND_CURSOR, GdkWaylandCursorClass))
|
|
|
|
typedef struct _GdkWaylandCursor GdkWaylandCursor;
|
|
typedef struct _GdkWaylandCursorClass GdkWaylandCursorClass;
|
|
|
|
struct _GdkWaylandCursor
|
|
{
|
|
GdkCursor cursor;
|
|
gchar *name;
|
|
guint serial;
|
|
int x, y, width, height, size;
|
|
void *map;
|
|
struct wl_buffer *buffer;
|
|
};
|
|
|
|
struct _GdkWaylandCursorClass
|
|
{
|
|
GdkCursorClass cursor_class;
|
|
};
|
|
|
|
G_DEFINE_TYPE (GdkWaylandCursor, _gdk_wayland_cursor, GDK_TYPE_CURSOR)
|
|
|
|
static guint theme_serial = 0;
|
|
|
|
static void
|
|
gdk_wayland_cursor_finalize (GObject *object)
|
|
{
|
|
GdkWaylandCursor *cursor = GDK_WAYLAND_CURSOR (object);
|
|
|
|
g_free (cursor->name);
|
|
|
|
G_OBJECT_CLASS (_gdk_wayland_cursor_parent_class)->finalize (object);
|
|
}
|
|
|
|
static GdkPixbuf*
|
|
gdk_wayland_cursor_get_image (GdkCursor *cursor)
|
|
{
|
|
return NULL;
|
|
}
|
|
|
|
struct wl_buffer *
|
|
_gdk_wayland_cursor_get_buffer (GdkCursor *cursor, int *x, int *y)
|
|
{
|
|
GdkWaylandCursor *wayland_cursor = GDK_WAYLAND_CURSOR (cursor);
|
|
|
|
*x = wayland_cursor->x;
|
|
*y = wayland_cursor->y;
|
|
|
|
return wayland_cursor->buffer;
|
|
}
|
|
|
|
static void
|
|
_gdk_wayland_cursor_class_init (GdkWaylandCursorClass *wayland_cursor_class)
|
|
{
|
|
GdkCursorClass *cursor_class = GDK_CURSOR_CLASS (wayland_cursor_class);
|
|
GObjectClass *object_class = G_OBJECT_CLASS (wayland_cursor_class);
|
|
|
|
object_class->finalize = gdk_wayland_cursor_finalize;
|
|
|
|
cursor_class->get_image = gdk_wayland_cursor_get_image;
|
|
}
|
|
|
|
static void
|
|
_gdk_wayland_cursor_init (GdkWaylandCursor *cursor)
|
|
{
|
|
}
|
|
|
|
static void
|
|
set_pixbuf (GdkWaylandCursor *cursor, GdkPixbuf *pixbuf)
|
|
{
|
|
int stride, i, n_channels;
|
|
unsigned char *pixels, *end, *argb_pixels, *s, *d;
|
|
|
|
stride = gdk_pixbuf_get_rowstride(pixbuf);
|
|
pixels = gdk_pixbuf_get_pixels(pixbuf);
|
|
n_channels = gdk_pixbuf_get_n_channels(pixbuf);
|
|
argb_pixels = cursor->map;
|
|
|
|
#define MULT(_d,c,a,t) \
|
|
do { t = c * a + 0x7f; _d = ((t >> 8) + t) >> 8; } while (0)
|
|
|
|
if (n_channels == 4)
|
|
{
|
|
for (i = 0; i < cursor->height; i++)
|
|
{
|
|
s = pixels + i * stride;
|
|
end = s + cursor->width * 4;
|
|
d = argb_pixels + i * cursor->width * 4;
|
|
while (s < end)
|
|
{
|
|
unsigned int t;
|
|
|
|
MULT(d[0], s[2], s[3], t);
|
|
MULT(d[1], s[1], s[3], t);
|
|
MULT(d[2], s[0], s[3], t);
|
|
d[3] = s[3];
|
|
s += 4;
|
|
d += 4;
|
|
}
|
|
}
|
|
}
|
|
else if (n_channels == 3)
|
|
{
|
|
for (i = 0; i < cursor->height; i++)
|
|
{
|
|
s = pixels + i * stride;
|
|
end = s + cursor->width * 3;
|
|
d = argb_pixels + i * cursor->width * 4;
|
|
while (s < end)
|
|
{
|
|
d[0] = s[2];
|
|
d[1] = s[1];
|
|
d[2] = s[0];
|
|
d[3] = 0xff;
|
|
s += 3;
|
|
d += 4;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
static GdkCursor *
|
|
create_cursor(GdkDisplayWayland *display, GdkPixbuf *pixbuf, int x, int y)
|
|
{
|
|
GdkWaylandCursor *cursor;
|
|
struct wl_visual *visual;
|
|
int stride, fd;
|
|
char *filename;
|
|
GError *error = NULL;
|
|
|
|
cursor = g_object_new (GDK_TYPE_WAYLAND_CURSOR,
|
|
"cursor-type", GDK_CURSOR_IS_PIXMAP,
|
|
"display", display,
|
|
NULL);
|
|
cursor->name = NULL;
|
|
cursor->serial = theme_serial;
|
|
cursor->x = x;
|
|
cursor->y = y;
|
|
if (pixbuf)
|
|
{
|
|
cursor->width = gdk_pixbuf_get_width (pixbuf);
|
|
cursor->height = gdk_pixbuf_get_height (pixbuf);
|
|
}
|
|
else
|
|
{
|
|
cursor->width = 1;
|
|
cursor->height = 1;
|
|
}
|
|
|
|
stride = cursor->width * 4;
|
|
cursor->size = stride * cursor->height;
|
|
|
|
fd = g_file_open_tmp("wayland-shm-XXXXXX", &filename, &error);
|
|
if (fd < 0) {
|
|
fprintf(stderr, "g_file_open_tmp failed: %s\n", error->message);
|
|
g_error_free (error);
|
|
return NULL;
|
|
}
|
|
|
|
unlink (filename);
|
|
g_free (filename);
|
|
|
|
if (ftruncate(fd, cursor->size) < 0) {
|
|
fprintf(stderr, "ftruncate failed: %m\n");
|
|
close(fd);
|
|
return NULL;
|
|
}
|
|
|
|
cursor->map = mmap(NULL, cursor->size,
|
|
PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0);
|
|
if (cursor->map == MAP_FAILED) {
|
|
fprintf(stderr, "mmap failed: %m\n");
|
|
close(fd);
|
|
return NULL;
|
|
}
|
|
|
|
if (pixbuf)
|
|
set_pixbuf (cursor, pixbuf);
|
|
else
|
|
memset (cursor->map, 0, 4);
|
|
|
|
visual = display->premultiplied_argb_visual;
|
|
cursor->buffer = wl_shm_create_buffer(display->shm,
|
|
fd,
|
|
cursor->width,
|
|
cursor->height,
|
|
stride, visual);
|
|
|
|
close(fd);
|
|
|
|
return GDK_CURSOR (cursor);
|
|
}
|
|
|
|
#define DATADIR "/usr/share/wayland"
|
|
|
|
static const struct {
|
|
GdkCursorType type;
|
|
const char *filename;
|
|
int hotspot_x, hotspot_y;
|
|
} cursor_definitions[] = {
|
|
{ GDK_BLANK_CURSOR, NULL, 0, 0 },
|
|
{ GDK_HAND1, DATADIR "/hand1.png", 18, 11 },
|
|
{ GDK_HAND2, DATADIR "/hand2.png", 14, 8 },
|
|
{ GDK_LEFT_PTR, DATADIR "/left_ptr.png", 10, 5 },
|
|
{ GDK_SB_H_DOUBLE_ARROW, DATADIR "/sb_h_double_arrow.png", 15, 15 },
|
|
{ GDK_SB_V_DOUBLE_ARROW, DATADIR "/sb_v_double_arrow.png", 15, 15 },
|
|
{ GDK_XTERM, DATADIR "/xterm.png", 15, 15 },
|
|
{ GDK_BOTTOM_RIGHT_CORNER, DATADIR "/bottom_right_corner.png", 28, 28 }
|
|
};
|
|
|
|
GdkCursor *
|
|
_gdk_wayland_display_get_cursor_for_type (GdkDisplay *display,
|
|
GdkCursorType cursor_type)
|
|
{
|
|
GdkDisplayWayland *wayland_display;
|
|
GdkPixbuf *pixbuf;
|
|
GError *error = NULL;
|
|
int i;
|
|
|
|
for (i = 0; i < G_N_ELEMENTS (cursor_definitions); i++)
|
|
{
|
|
if (cursor_definitions[i].type == cursor_type)
|
|
break;
|
|
}
|
|
|
|
if (i == G_N_ELEMENTS (cursor_definitions))
|
|
{
|
|
g_warning("unhandled cursor type %d, falling back to blank\n",
|
|
cursor_type);
|
|
i = 0;
|
|
}
|
|
|
|
wayland_display = GDK_DISPLAY_WAYLAND (display);
|
|
if (!wayland_display->cursors)
|
|
wayland_display->cursors =
|
|
g_new0 (GdkCursor *, G_N_ELEMENTS(cursor_definitions));
|
|
if (wayland_display->cursors[i])
|
|
return g_object_ref (wayland_display->cursors[i]);
|
|
|
|
GDK_NOTE (CURSOR,
|
|
g_message ("creating new cursor for type %d, filename %s",
|
|
cursor_type, cursor_definitions[i].filename));
|
|
|
|
if (cursor_type != GDK_BLANK_CURSOR)
|
|
pixbuf = gdk_pixbuf_new_from_file(cursor_definitions[i].filename, &error);
|
|
else
|
|
pixbuf = NULL;
|
|
if (error != NULL)
|
|
{
|
|
GDK_NOTE (CURSOR,
|
|
g_message ("failed to load %s: %s",
|
|
cursor_definitions[i].filename, error->message));
|
|
g_error_free(error);
|
|
return NULL;
|
|
}
|
|
|
|
wayland_display->cursors[i] =
|
|
create_cursor(wayland_display, pixbuf,
|
|
cursor_definitions[i].hotspot_x,
|
|
cursor_definitions[i].hotspot_y);
|
|
if (pixbuf)
|
|
g_object_unref (pixbuf);
|
|
|
|
return g_object_ref (wayland_display->cursors[i]);
|
|
}
|
|
|
|
GdkCursor*
|
|
_gdk_wayland_display_get_cursor_for_name (GdkDisplay *display,
|
|
const gchar *name)
|
|
{
|
|
GdkWaylandCursor *private;
|
|
|
|
g_return_val_if_fail (GDK_IS_DISPLAY (display), NULL);
|
|
|
|
private = g_object_new (GDK_TYPE_WAYLAND_CURSOR,
|
|
"cursor-type", GDK_CURSOR_IS_PIXMAP,
|
|
"display", display,
|
|
NULL);
|
|
private->name = g_strdup (name);
|
|
private->serial = theme_serial;
|
|
|
|
return GDK_CURSOR (private);
|
|
}
|
|
|
|
GdkCursor *
|
|
_gdk_wayland_display_get_cursor_for_pixbuf (GdkDisplay *display,
|
|
GdkPixbuf *pixbuf,
|
|
gint x,
|
|
gint y)
|
|
{
|
|
GdkWaylandCursor *private;
|
|
|
|
g_return_val_if_fail (GDK_IS_DISPLAY (display), NULL);
|
|
g_return_val_if_fail (GDK_IS_PIXBUF (pixbuf), NULL);
|
|
g_return_val_if_fail (0 <= x && x < gdk_pixbuf_get_width (pixbuf), NULL);
|
|
g_return_val_if_fail (0 <= y && y < gdk_pixbuf_get_height (pixbuf), NULL);
|
|
|
|
private = g_object_new (GDK_TYPE_WAYLAND_CURSOR,
|
|
"cursor-type", GDK_CURSOR_IS_PIXMAP,
|
|
"display", display,
|
|
NULL);
|
|
|
|
private->name = NULL;
|
|
private->serial = theme_serial;
|
|
|
|
return GDK_CURSOR (private);
|
|
}
|
|
|
|
void
|
|
_gdk_wayland_display_get_default_cursor_size (GdkDisplay *display,
|
|
guint *width,
|
|
guint *height)
|
|
{
|
|
/* FIXME: wayland settings? */
|
|
*width = 64;
|
|
*height = 64;
|
|
}
|
|
|
|
void
|
|
_gdk_wayland_display_get_maximal_cursor_size (GdkDisplay *display,
|
|
guint *width,
|
|
guint *height)
|
|
{
|
|
*width = 256;
|
|
*height = 256;
|
|
}
|
|
|
|
gboolean
|
|
_gdk_wayland_display_supports_cursor_alpha (GdkDisplay *display)
|
|
{
|
|
return TRUE;
|
|
}
|
|
|
|
gboolean
|
|
_gdk_wayland_display_supports_cursor_color (GdkDisplay *display)
|
|
{
|
|
return TRUE;
|
|
}
|