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ShellScreenshot: replace XFixes usage with MetaCursorTracker

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More X11 code going away from gnome-shell, and more wayland
compatibility.

https://bugzilla.gnome.org/show_bug.cgi?id=705911
This commit is contained in:
Giovanni Campagna 2013-08-14 10:48:45 +02:00
parent d52c95a15f
commit d272b0cbf3
1 changed files with 54 additions and 35 deletions
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85
src/shell-screenshot.c
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@ -3,14 +3,13 @@
#define COGL_ENABLE_EXPERIMENTAL_API
#define CLUTTER_ENABLE_EXPERIMENTAL_API
#include <X11/extensions/Xfixes.h>
#include <clutter/x11/clutter-x11.h>
#include <clutter/clutter.h>
#include <cogl/cogl.h>
#include <meta/display.h>
#include <meta/util.h>
#include <meta/meta-plugin.h>
#include <meta/meta-shaped-texture.h>
#include <meta/meta-cursor-tracker.h>
#include "shell-global.h"
#include "shell-screenshot.h"
@ -246,58 +245,70 @@ do_grab_screenshot (_screenshot_data *screenshot_data,
}
static void
_draw_cursor_image (cairo_surface_t *surface,
get_pointer_coords (int *x,
int *y)
{
ClutterDeviceManager *manager;
ClutterInputDevice *device;
ClutterPoint point;
manager = clutter_device_manager_get_default ();
device = clutter_device_manager_get_core_device (manager, CLUTTER_POINTER_DEVICE);
clutter_input_device_get_coords (device, NULL, &point);
*x = point.x;
*y = point.y;
}
static void
_draw_cursor_image (MetaCursorTracker *tracker,
cairo_surface_t *surface,
cairo_rectangle_int_t area)
{
XFixesCursorImage *cursor_image;
CoglTexture *texture;
int width, height;
int stride;
guint8 *data;
cairo_surface_t *cursor_surface;
cairo_region_t *screenshot_region;
cairo_t *cr;
guchar *data;
int stride;
int i, j;
cursor_image = XFixesGetCursorImage (clutter_x11_get_default_display ());
if (!cursor_image)
return;
int x, y;
int xhot, yhot;
screenshot_region = cairo_region_create_rectangle (&area);
get_pointer_coords (&x, &y);
if (!cairo_region_contains_point (screenshot_region, cursor_image->x, cursor_image->y))
if (!cairo_region_contains_point (screenshot_region, x, y))
{
XFree (cursor_image);
cairo_region_destroy (screenshot_region);
return;
}
cursor_surface = cairo_image_surface_create (CAIRO_FORMAT_ARGB32, cursor_image->width, cursor_image->height);
texture = meta_cursor_tracker_get_sprite (tracker);
meta_cursor_tracker_get_hot (tracker, &xhot, &yhot);
width = cogl_texture_get_width (texture);
height = cogl_texture_get_height (texture);
stride = 4 * width;
data = g_new (guint8, stride * height);
cogl_texture_get_data (texture, CLUTTER_CAIRO_FORMAT_ARGB32, stride, data);
/* The pixel data (in typical Xlib breakage) is longs even on
* 64-bit platforms, so we have to data-convert there. For simplicity,
* just do it always
*/
data = cairo_image_surface_get_data (cursor_surface);
stride = cairo_image_surface_get_stride (cursor_surface);
for (i = 0; i < cursor_image->height; i++)
for (j = 0; j < cursor_image->width; j++)
*(guint32 *)(data + i * stride + 4 * j) = cursor_image->pixels[i * cursor_image->width + j];
cairo_surface_mark_dirty (cursor_surface);
/* FIXME: cairo-gl? */
cursor_surface = cairo_image_surface_create_for_data (data,
CAIRO_FORMAT_ARGB32,
width, height,
stride);
cr = cairo_create (surface);
cairo_set_source_surface (cr,
cursor_surface,
cursor_image->x - cursor_image->xhot - area.x,
cursor_image->y - cursor_image->yhot - area.y);
x - xhot - area.x,
y - yhot - area.y);
cairo_paint (cr);
cairo_destroy (cr);
cairo_surface_destroy (cursor_surface);
cairo_region_destroy (screenshot_region);
XFree (cursor_image);
g_free (data);
}
static void
@ -305,6 +316,7 @@ grab_screenshot (ClutterActor *stage,
_screenshot_data *screenshot_data)
{
MetaScreen *screen = shell_global_get_screen (screenshot_data->screenshot->global);
MetaCursorTracker *tracker;
int width, height;
GSimpleAsyncResult *result;
GSettings *settings;
@ -359,7 +371,10 @@ grab_screenshot (ClutterActor *stage,
settings = g_settings_new (A11Y_APPS_SCHEMA);
if (screenshot_data->include_cursor &&
!g_settings_get_boolean (settings, MAGNIFIER_ACTIVE_KEY))
_draw_cursor_image (screenshot_data->image, screenshot_data->screenshot_area);
{
tracker = meta_cursor_tracker_get_for_screen (screen);
_draw_cursor_image (tracker, screenshot_data->image, screenshot_data->screenshot_area);
}
g_object_unref (settings);
g_signal_handlers_disconnect_by_func (stage, (void *)grab_screenshot, (gpointer)screenshot_data);
@ -488,6 +503,7 @@ shell_screenshot_screenshot_window (ShellScreenshot *screenshot,
_screenshot_data *screenshot_data = g_new0 (_screenshot_data, 1);
MetaScreen *screen = shell_global_get_screen (screenshot->global);
MetaCursorTracker *tracker;
MetaDisplay *display = meta_screen_get_display (screen);
MetaWindow *window = meta_display_get_focus_window (display);
ClutterActor *window_actor;
@ -543,7 +559,10 @@ shell_screenshot_screenshot_window (ShellScreenshot *screenshot,
settings = g_settings_new (A11Y_APPS_SCHEMA);
if (include_cursor && !g_settings_get_boolean (settings, MAGNIFIER_ACTIVE_KEY))
_draw_cursor_image (screenshot_data->image, screenshot_data->screenshot_area);
{
tracker = meta_cursor_tracker_get_for_screen (screen);
_draw_cursor_image (tracker, screenshot_data->image, screenshot_data->screenshot_area);
}
g_object_unref (settings);
result = g_simple_async_result_new (NULL, on_screenshot_written, (gpointer)screenshot_data, shell_screenshot_screenshot_window);