diff options
Diffstat (limited to 'plug-ins/screenshot/screenshot-kwin.c')
| -rw-r--r-- | plug-ins/screenshot/screenshot-kwin.c | 207 |
1 files changed, 207 insertions, 0 deletions
diff --git a/plug-ins/screenshot/screenshot-kwin.c b/plug-ins/screenshot/screenshot-kwin.c new file mode 100644 index 0000000..21db1f3 --- /dev/null +++ b/plug-ins/screenshot/screenshot-kwin.c @@ -0,0 +1,207 @@ +/* GIMP - The GNU Image Manipulation Program + * Copyright (C) 1995 Spencer Kimball and Peter Mattis + * + * Screenshot plug-in + * Copyright 1998-2007 Sven Neumann <sven@gimp.org> + * Copyright 2003 Henrik Brix Andersen <brix@gimp.org> + * Copyright 2016 Michael Natterer <mitch@gimp.org> + * Copyright 2017 Jehan <jehan@gimp.org> + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 3 of the License, or + * (at your option) any later version. + * + * This program 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 General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see <https://www.gnu.org/licenses/>. + */ + +#include "config.h" + +#include <glib.h> +#include <glib/gstdio.h> /* g_unlink() */ + +#include <libgimp/gimp.h> +#include <libgimp/gimpui.h> + +#include "screenshot.h" +#include "screenshot-kwin.h" + + +static GDBusProxy *proxy = NULL; + + +gboolean +screenshot_kwin_available (void) +{ + proxy = g_dbus_proxy_new_for_bus_sync (G_BUS_TYPE_SESSION, + G_DBUS_PROXY_FLAGS_DO_NOT_AUTO_START, + NULL, + "org.kde.KWin", + "/Screenshot", + "org.kde.kwin.Screenshot", + NULL, NULL); + + if (proxy) + { + GError *error = NULL; + + g_dbus_proxy_call_sync (proxy, "org.freedesktop.DBus.Peer.Ping", + NULL, + G_DBUS_CALL_FLAGS_NONE, + -1, NULL, &error); + if (! error) + return TRUE; + + g_clear_error (&error); + + g_object_unref (proxy); + proxy = NULL; + } + + return FALSE; +} + +ScreenshotCapabilities +screenshot_kwin_get_capabilities (void) +{ + return (SCREENSHOT_CAN_SHOOT_DECORATIONS | + SCREENSHOT_CAN_SHOOT_POINTER | + SCREENSHOT_CAN_SHOOT_WINDOW | + SCREENSHOT_CAN_PICK_WINDOW); + /* TODO: SCREENSHOT_CAN_SHOOT_REGION. + * The KDE API has "screenshotArea" method but no method to get + * coordinates could be found. See below. + */ +} + +GimpPDBStatusType +screenshot_kwin_shoot (ScreenshotValues *shootvals, + GdkScreen *screen, + gint32 *image_ID, + GError **error) +{ + gchar *filename = NULL; + const gchar *method = NULL; + GVariant *args = NULL; + GVariant *retval; + gint monitor = shootvals->monitor; + gint32 mask; + + switch (shootvals->shoot_type) + { + case SHOOT_ROOT: + if (shootvals->screenshot_delay > 0) + screenshot_delay (shootvals->screenshot_delay); + else + { + /* As an exception, I force a delay of at least 0.5 seconds + * for KWin. Because of windows effect slowly fading out, the + * screenshot plug-in GUI was constantly visible (with + * transparency as it is fading out) in 0s-delay screenshots. + */ + g_usleep (500000); + } + + method = "screenshotFullscreen"; + args = g_variant_new ("(b)", shootvals->show_cursor); + + /* FIXME: figure profile */ + break; + + case SHOOT_REGION: + break; + /* FIXME: GNOME-shell has a "SelectArea" returning coordinates + * which can be fed to "ScreenshotArea". KDE has the equivalent + * "screenshotArea", but no "SelectArea" equivalent that I could + * find. + * Also at first, I expected "interactive" method to take care of + * the whole selecting-are-then-screenshotting workflow, but this + * is apparently only made to select interactively a specific + * window, not an area. + */ + method = "screenshotArea"; + args = g_variant_new ("(iiii)", + shootvals->x1, + shootvals->y1, + shootvals->x2 - shootvals->x1, + shootvals->y2 - shootvals->y1); + args = NULL; + + break; + + case SHOOT_WINDOW: + if (shootvals->select_delay > 0) + screenshot_delay (shootvals->select_delay); + + /* XXX I expected "screenshotWindowUnderCursor" method to be the + * right one, but it returns nothing, nor is there a file + * descriptor in argument. So I don't understand how to grab the + * screenshot. Also "interactive" changes the cursor to a + * crosshair, waiting for click, which is more helpful than + * immediate screenshot under cursor. + */ + method = "interactive"; + mask = (shootvals->decorate ? 1 : 0) | + (shootvals->show_cursor ? 1 << 1 : 0); + args = g_variant_new ("(i)", mask); + + /* FIXME: figure monitor */ + break; + } + + retval = g_dbus_proxy_call_sync (proxy, method, args, + G_DBUS_CALL_FLAGS_NONE, + -1, NULL, error); + if (! retval) + goto failure; + + g_variant_get (retval, "(s)", + &filename); + g_variant_unref (retval); + + if (filename) + { + GimpColorProfile *profile; + + *image_ID = gimp_file_load (GIMP_RUN_NONINTERACTIVE, + filename, filename); + gimp_image_set_filename (*image_ID, "screenshot.png"); + + /* This is very wrong in multi-display setups since we have no + * idea which profile is to be used. Let's keep it anyway and + * assume always the monitor 0, which will still work in common + * cases. + */ + profile = gimp_screen_get_color_profile (screen, monitor); + + if (profile) + { + gimp_image_set_color_profile (*image_ID, profile); + g_object_unref (profile); + } + + g_unlink (filename); + g_free (filename); + + g_object_unref (proxy); + proxy = NULL; + + return GIMP_PDB_SUCCESS; + } + + failure: + + if (filename) + g_free (filename); + + g_object_unref (proxy); + proxy = NULL; + + return GIMP_PDB_EXECUTION_ERROR; +} |