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gimp/plug-ins/common/screenshot.c

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/* GIMP - The GNU Image Manipulation Program
* Copyright (C) 1995 Spencer Kimball and Peter Mattis
*
* 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 <http://www.gnu.org/licenses/>.
*/
/*
* Screenshot plug-in
* Copyright 1998-2007 Sven Neumann <sven@gimp.org>
* Copyright 2003 Henrik Brix Andersen <brix@gimp.org>
*
* Any suggestions, bug-reports or patches are very welcome.
*
*/
#include "config.h"
#include <string.h>
#include <libgimp/gimp.h>
#include <libgimp/gimpui.h>
#include <gdk/gdkkeysyms.h>
#if defined(GDK_WINDOWING_X11)
#include <gdk/gdkx.h>
#ifdef HAVE_X11_EXTENSIONS_SHAPE_H
#include <X11/extensions/shape.h>
#endif
#ifdef HAVE_X11_XMU_WINUTIL_H
#include <X11/Xmu/WinUtil.h>
#endif
#ifdef HAVE_XFIXES
#include <X11/extensions/Xfixes.h>
#endif
#elif defined(GDK_WINDOWING_WIN32)
#include <windows.h>
#endif
#include "libgimp/stdplugins-intl.h"
/* GdkPixbuf RGBA C-Source image dump 1-byte-run-length-encoded */
#ifdef __SUNPRO_C
#pragma align 4 (screenshot_icon)
#endif
#ifdef __GNUC__
static const guint8 screenshot_icon[] __attribute__ ((__aligned__ (4))) =
#else
static const guint8 screenshot_icon[] =
#endif
{ ""
/* Pixbuf magic (0x47646b50) */
"GdkP"
/* length: header (24) + pixel_data (1582) */
"\0\0\6F"
/* pixdata_type (0x2010002) */
"\2\1\0\2"
/* rowstride (88) */
"\0\0\0X"
/* width (22) */
"\0\0\0\26"
/* height (22) */
"\0\0\0\26"
/* pixel_data: */
"\213\0\0\0\0\1\242\242\242\5\203\242\242\242\31\221\0\0\0\0\2\27\27\26"
"D\40\40\40\372\203)))\375\2\32\32\32\362\26\26\25""0\217\0\0\0\0\2\2"
"\2\2\322\307\310\307\377\203\377\377\377\377\2\263\263\262\363\0\0\0"
"\314\217\0\0\0\0\2\6\6\6\334\206\207\205\377\202\252\253\251\377\3\252"
"\252\251\377ghe\376\1\1\1\320\217\0\0\0\0\2\11\11\11\346./-\345\202G"
"HE\25\3JKH\32""01/\364\5\5\5\333\212\0\0\0\0\17\26\26\25\31\26\26\25"
"0\26\26\25g\0\0\0\314+,+\331LMK\375EFD\362ffe\347iig\346lmk\346RSQ\362"
"\13\13\13\360\0\0\0\314\2\2\2\321\26\26\25V\203\0\0\0\0#\26\26\25\31"
"\26\26\25""0\26\26\25n\3\3\3\331\2\2\2\332JJI\355\215\215\215\372\246"
"\246\246\347\267\270\266\362\177\202~\377BC\77\377TUR\377\\]Y\377gid"
"\377[]X\377\204\206\204\374wxw\276\224\225\224\314LLK\343\26\26\25D\0"
"\0\0\0\26\26\25D\3\3\3\341\17\17\17\373ghg\377\237\240\236\377\273\274"
"\272\377\302\303\300\377\272\273\270\377\200\201\177\377zzz\377tws\377"
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"K\177\202}\377xyu\377\217\221\215\377\226\227\226\365\0\0\0\371\0\0\0"
"\0\2\2\2\330\257\261\257\377\275\276\273\377\262\263\260\377UWT\377Q"
"SP\377suq\377]^[\377\304\304\304\377\303\303\303\377kmi\377MNJ\377WZ"
"X\377[`_\377aeb\377gid\377}\200{\377SUQ\377FGE\377\200\201\200\377\12"
"\12\12\357\0\0\0\0\4\4\4\345xyv\377\241\242\236\377\210\212\205\377v"
"xt\377\220\222\217\377GIF\377+,)\377```\377jji\377UXV\377y\204\210\377"
"\203\215\220\377~\204\207\377flo\377PW\\\377SWU\377JLI\377452\377tut"
"\377\12\12\12\357\0\0\0\0\4\4\4\344opm\377\221\223\217\377}\177{\377"
"\215\217\213\377`b_\377()'\377*+)\377785\377VXV\377u~\202\377nsu\377"
"VYZ\377OST\377OQS\377JOP\377^cd\377698\377!\"!\377llk\377\12\12\12\357"
"\0\0\0\0\3\3\3\345npl\377\220\221\216\377\202UWS\377\24GIF\377\40!\37"
"\377*+)\3779:7\377^ce\377NRT\377UXY\377(,.\377\22\24\25\377!$&\377IL"
"M\3778=\77\377RVX\377''&\377klk\377\12\12\12\357\0\0\0\1\3\3\3\345no"
"l\377\220\221\216\377\202UWS\377\24GIF\377\40!\37\377*+)\3778:8\377T"
"XY\377289\377\23\25\26\377\16\16\16\377\1\1\1\377\2\2\2\377\24\25\25"
"\377.34\377289\377011\377aa`\377\11\11\11\360\0\0\0\3\3\3\3\345nol\377"
"\204\205\202\377\202UWS\377\24GIF\377\40!\37\377*+)\377\77BA\37728:\377"
"\34\40!\377\31\32\32\377\377\377\377\377hhh\377\40\40\40\377\22\22\22"
"\377.00\377.46\377:>\77\377`a`\377\11\11\10\361\0\0\0\7\3\3\3\345mok"
"\377z{x\377\202UWS\377\24GIF\377\40!\37\377*+)\377HJI\377.46\377\25\27"
"\30\377\40\40\40\377hhh\377\232\232\232\377}}}\377'''\3779;;\377/57\377"
"599\377``_\377\11\11\10\362\0\0\0\15\3\3\3\345lnk\377rsp\377\202UWS\377"
"\24GIF\377\40!\37\377,-*\377>@>\377.46\377\35\37\40\377\1\1\1\377888"
"\377\214\214\214\377\213\213\213\377AAA\377JKK\377/57\3776:;\377WXV\377"
"\6\6\6\364\0\0\0\21\0\0\0\371\201\202\177\377mok\377\202UWS\377iGIF\377"
"MNM\377RRR\372ghg\364[`b\377+/0\377\17\17\17\377\"\"\"\377'''\377HHH"
"\377\263\263\263\377SUU\377W\\^\377CFF\374<<<\376\20\20\17\317\0\0\0"
"\20\24\24\23]\4\4\4\353\177\177~\375|}z\373}~|\374hih\3769:9\371\0\0"
"\0\347\0\0\0\351\7\7\7\367.46\377256\377\40\40\40\377(((\377:::\377`"
"ab\3779>\77\377\11\13\13\376\0\0\0\353\0\0\0\300\14\14\13H\0\0\0\15\0"
"\0\0\4\23\23\22L\0\0\0\332\0\0\0\341\0\0\0\346\0\0\0\341\14\14\13{\0"
"\0\0V\0\0\0a\0\0\0l\10\11\11\371\\^_\377LOP\377ILL\377LOQ\377QUV\377"
"\16\17\17\377\34\37\40\244\0\0\0`\0\0\0""4\0\0\0\27\0\0\0\7\0\0\0\1\0"
"\0\0\3\0\0\0\10\0\0\0\21\0\0\0\34\0\0\0'\0\0\0""0\0\0\0""6\0\0\0=\0\0"
"\0A\0\0\0F\4\5\5\355\12\13\13\371\17\20\20\376\15\16\16\375\10\10\11"
"\365\7\10\11j\0\0\0G\0\0\0-\0\0\0\30\0\0\0\13\0\0\0\4\0\0\0\0\0\0\0\1"
"\0\0\0\2\0\0\0\4\0\0\0\11\0\0\0\16\0\0\0\23\0\0\0\31\0\0\0\35\0\0\0!"
"\0\0\0#\0\0\0$\0\0\0%\0\0\0$\0\0\0&\0\0\0%\0\0\0\36\0\0\0\27\0\0\0\20"
"\0\0\0\10\0\0\0\3\0\0\0\1\204\0\0\0\0\5\0\0\0\1\0\0\0\2\0\0\0\4\0\0\0"
"\5\0\0\0\6\202\0\0\0\10\11\0\0\0\11\0\0\0\7\0\0\0\10\0\0\0\5\0\0\0\7"
"\0\0\0\6\0\0\0\5\0\0\0\3\0\0\0\1\202\0\0\0\0"
};
/* Defines */
#define PLUG_IN_PROC "plug-in-screenshot"
#define PLUG_IN_BINARY "screenshot"
#ifdef __GNUC__
#ifdef GDK_NATIVE_WINDOW_POINTER
#if GLIB_SIZEOF_VOID_P != 4
#warning window_id does not fit in PDB_INT32
#endif
#endif
#endif
typedef enum
{
SHOOT_ROOT,
SHOOT_REGION,
SHOOT_WINDOW
} ShootType;
typedef struct
{
ShootType shoot_type;
gboolean decorate;
guint window_id;
guint select_delay;
gint x1;
gint y1;
gint x2;
gint y2;
gboolean show_cursor;
} ScreenshotValues;
static ScreenshotValues shootvals =
{
SHOOT_WINDOW, /* root window */
TRUE, /* include WM decorations */
0, /* window ID */
0, /* select delay */
0, /* coords of region dragged out by pointer */
0,
0,
0,
FALSE
};
static void query (void);
static void run (const gchar *name,
gint nparams,
const GimpParam *param,
gint *nreturn_vals,
GimpParam **return_vals);
static GdkNativeWindow select_window (GdkScreen *screen);
static gint32 create_image (GdkPixbuf *pixbuf,
GdkRegion *shape,
const gchar *name);
static gint32 shoot (GdkScreen *screen);
static gboolean shoot_dialog (GdkScreen **screen);
static void shoot_delay (gint32 delay);
static gboolean shoot_delay_callback (gpointer data);
static gboolean shoot_quit_timeout (gpointer data);
/* Global Variables */
const GimpPlugInInfo PLUG_IN_INFO =
{
NULL, /* init_proc */
NULL, /* quit_proc */
query, /* query_proc */
run /* run_proc */
};
/* Functions */
MAIN ()
static void
query (void)
{
static const GimpParamDef args[] =
{
{ GIMP_PDB_INT32, "run-mode", "The run mode { RUN-INTERACTIVE (0), RUN-NONINTERACTIVE (1) }" },
{ GIMP_PDB_INT32, "root", "Root window { TRUE, FALSE }" },
{ GIMP_PDB_INT32, "window-id", "Window id" },
{ GIMP_PDB_INT32, "x1", "(optional) Region left x coord" },
{ GIMP_PDB_INT32, "y1", "(optional) Region top y coord" },
{ GIMP_PDB_INT32, "x2", "(optional) Region right x coord" },
{ GIMP_PDB_INT32, "y2", "(optional) Region bottom y coord" }
};
static const GimpParamDef return_vals[] =
{
{ GIMP_PDB_IMAGE, "image", "Output image" }
};
gimp_install_procedure (PLUG_IN_PROC,
N_("Create an image from an area of the screen"),
"The plug-in allows to take screenshots of a an "
"interactively selected window or of the desktop, "
"either the whole desktop or an interactively "
"selected region. When called non-interactively, it "
"may grab the root window or use the window-id "
"passed as a parameter. The last four parameters "
"are optional and can be used to specify the corners "
"of the region to be grabbed.",
"Sven Neumann <sven@gimp.org>, "
"Henrik Brix Andersen <brix@gimp.org>",
"1998 - 2008",
"v1.1 (2008/04)",
N_("_Screenshot..."),
NULL,
GIMP_PLUGIN,
G_N_ELEMENTS (args),
G_N_ELEMENTS (return_vals),
args, return_vals);
gimp_plugin_menu_register (PLUG_IN_PROC, "<Image>/File/Create/Acquire");
gimp_plugin_icon_register (PLUG_IN_PROC, GIMP_ICON_TYPE_INLINE_PIXBUF,
screenshot_icon);
}
static void
run (const gchar *name,
gint nparams,
const GimpParam *param,
gint *nreturn_vals,
GimpParam **return_vals)
{
GimpRunMode run_mode = param[0].data.d_int32;
GimpPDBStatusType status = GIMP_PDB_SUCCESS;
GdkScreen *screen = NULL;
gint32 image_ID;
static GimpParam values[2];
/* initialize the return of the status */
values[0].type = GIMP_PDB_STATUS;
values[0].data.d_status = status;
*nreturn_vals = 1;
*return_vals = values;
INIT_I18N ();
/* how are we running today? */
switch (run_mode)
{
case GIMP_RUN_INTERACTIVE:
/* Possibly retrieve data from a previous run */
gimp_get_data (PLUG_IN_PROC, &shootvals);
shootvals.window_id = 0;
/* Get information from the dialog */
if (! shoot_dialog (&screen))
status = GIMP_PDB_CANCEL;
break;
case GIMP_RUN_NONINTERACTIVE:
if (nparams == 3)
{
gboolean do_root = param[1].data.d_int32;
shootvals.shoot_type = do_root ? SHOOT_ROOT : SHOOT_WINDOW;
shootvals.window_id = param[2].data.d_int32;
shootvals.select_delay = 0;
}
else if (nparams == 7)
{
shootvals.shoot_type = SHOOT_REGION;
shootvals.window_id = param[2].data.d_int32;
shootvals.select_delay = 0;
shootvals.x1 = param[3].data.d_int32;
shootvals.y1 = param[4].data.d_int32;
shootvals.x2 = param[5].data.d_int32;
shootvals.y2 = param[6].data.d_int32;
}
else
{
status = GIMP_PDB_CALLING_ERROR;
}
if (! gdk_init_check (NULL, NULL))
status = GIMP_PDB_CALLING_ERROR;
break;
case GIMP_RUN_WITH_LAST_VALS:
/* Possibly retrieve data from a previous run */
gimp_get_data (PLUG_IN_PROC, &shootvals);
break;
default:
break;
}
if (status == GIMP_PDB_SUCCESS)
{
if (shootvals.select_delay > 0)
shoot_delay (shootvals.select_delay);
if (shootvals.shoot_type != SHOOT_ROOT && ! shootvals.window_id)
{
shootvals.window_id = select_window (screen);
if (! shootvals.window_id)
status = GIMP_PDB_CANCEL;
}
}
if (status == GIMP_PDB_SUCCESS)
{
image_ID = shoot (screen);
if (image_ID == -1)
status = GIMP_PDB_EXECUTION_ERROR;
}
if (status == GIMP_PDB_SUCCESS)
{
if (run_mode == GIMP_RUN_INTERACTIVE)
{
/* Store variable states for next run */
gimp_set_data (PLUG_IN_PROC, &shootvals, sizeof (ScreenshotValues));
gimp_display_new (image_ID);
}
/* set return values */
*nreturn_vals = 2;
values[1].type = GIMP_PDB_IMAGE;
values[1].data.d_image = image_ID;
}
values[0].data.d_status = status;
}
/* Allow the user to select a window or a region with the mouse */
#ifdef GDK_WINDOWING_X11
static GdkNativeWindow
select_window_x11 (GdkScreen *screen)
{
Display *x_dpy = GDK_SCREEN_XDISPLAY (screen);
gint x_scr = GDK_SCREEN_XNUMBER (screen);
Window x_root = RootWindow (x_dpy, x_scr);
Window x_win = None;
GC x_gc = NULL;
Cursor x_cursor = XCreateFontCursor (x_dpy, GDK_CROSSHAIR);
GdkKeymapKey *keys = NULL;
gint status;
gint i, num_keys;
gint buttons = 0;
gint mask = ButtonPressMask | ButtonReleaseMask;
gboolean cancel = FALSE;
if (shootvals.shoot_type == SHOOT_REGION)
mask |= PointerMotionMask;
status = XGrabPointer (x_dpy, x_root, False,
mask, GrabModeSync, GrabModeAsync,
x_root, x_cursor, CurrentTime);
if (status != GrabSuccess)
{
gint x, y;
guint xmask;
/* if we can't grab the pointer, return the window under the pointer */
XQueryPointer (x_dpy, x_root, &x_root, &x_win, &x, &y, &x, &y, &xmask);
if (x_win == None || x_win == x_root)
g_message (_("Error selecting the window"));
}
if (shootvals.shoot_type == SHOOT_REGION)
{
XGCValues gc_values;
gc_values.function = GXxor;
gc_values.plane_mask = AllPlanes;
gc_values.foreground = WhitePixel (x_dpy, x_scr);
gc_values.background = BlackPixel (x_dpy, x_scr);
gc_values.line_width = 0;
gc_values.line_style = LineSolid;
gc_values.fill_style = FillSolid;
gc_values.cap_style = CapButt;
gc_values.join_style = JoinMiter;
gc_values.graphics_exposures = FALSE;
gc_values.clip_x_origin = 0;
gc_values.clip_y_origin = 0;
gc_values.clip_mask = None;
gc_values.subwindow_mode = IncludeInferiors;
x_gc = XCreateGC (x_dpy, x_root,
GCFunction | GCPlaneMask | GCForeground | GCLineWidth |
GCLineStyle | GCCapStyle | GCJoinStyle |
GCGraphicsExposures | GCBackground | GCFillStyle |
GCClipXOrigin | GCClipYOrigin | GCClipMask |
GCSubwindowMode,
&gc_values);
}
if (gdk_keymap_get_entries_for_keyval (NULL, GDK_Escape, &keys, &num_keys))
{
gdk_error_trap_push ();
#define X_GRAB_KEY(index, modifiers) \
XGrabKey (x_dpy, keys[index].keycode, modifiers, x_root, False, \
GrabModeAsync, GrabModeAsync)
for (i = 0; i < num_keys; i++)
{
X_GRAB_KEY (i, 0);
X_GRAB_KEY (i, LockMask); /* CapsLock */
X_GRAB_KEY (i, Mod2Mask); /* NumLock */
X_GRAB_KEY (i, Mod5Mask); /* ScrollLock */
X_GRAB_KEY (i, LockMask | Mod2Mask); /* CapsLock + NumLock */
X_GRAB_KEY (i, LockMask | Mod5Mask); /* CapsLock + ScrollLock */
X_GRAB_KEY (i, Mod2Mask | Mod5Mask); /* NumLock + ScrollLock */
X_GRAB_KEY (i, LockMask | Mod2Mask | Mod5Mask); /* all */
}
#undef X_GRAB_KEY
gdk_flush ();
gdk_error_trap_pop ();
}
while (! cancel && ((x_win == None) || (buttons != 0)))
{
XEvent x_event;
gint x, y, w, h;
XAllowEvents (x_dpy, SyncPointer, CurrentTime);
XWindowEvent (x_dpy, x_root, mask | KeyPressMask, &x_event);
switch (x_event.type)
{
case ButtonPress:
if (x_win == None)
{
x_win = x_event.xbutton.subwindow;
if (x_win == None)
x_win = x_root;
#ifdef HAVE_X11_XMU_WINUTIL_H
else if (! shootvals.decorate)
x_win = XmuClientWindow (x_dpy, x_win);
#endif
shootvals.x2 = shootvals.x1 = x_event.xbutton.x_root;
shootvals.y2 = shootvals.y1 = x_event.xbutton.y_root;
}
buttons++;
break;
case ButtonRelease:
if (buttons > 0)
buttons--;
if (! buttons && shootvals.shoot_type == SHOOT_REGION)
{
x = MIN (shootvals.x1, shootvals.x2);
y = MIN (shootvals.y1, shootvals.y2);
w = ABS (shootvals.x2 - shootvals.x1);
h = ABS (shootvals.y2 - shootvals.y1);
if (w > 0 && h > 0)
XDrawRectangle (x_dpy, x_root, x_gc, x, y, w, h);
shootvals.x2 = x_event.xbutton.x_root;
shootvals.y2 = x_event.xbutton.y_root;
}
break;
case MotionNotify:
if (buttons > 0)
{
x = MIN (shootvals.x1, shootvals.x2);
y = MIN (shootvals.y1, shootvals.y2);
w = ABS (shootvals.x2 - shootvals.x1);
h = ABS (shootvals.y2 - shootvals.y1);
if (w > 0 && h > 0)
XDrawRectangle (x_dpy, x_root, x_gc, x, y, w, h);
shootvals.x2 = x_event.xmotion.x_root;
shootvals.y2 = x_event.xmotion.y_root;
x = MIN (shootvals.x1, shootvals.x2);
y = MIN (shootvals.y1, shootvals.y2);
w = ABS (shootvals.x2 - shootvals.x1);
h = ABS (shootvals.y2 - shootvals.y1);
if (w > 0 && h > 0)
XDrawRectangle (x_dpy, x_root, x_gc, x, y, w, h);
}
break;
case KeyPress:
{
guint *keyvals;
gint n;
if (gdk_keymap_get_entries_for_keycode (NULL, x_event.xkey.keycode,
NULL, &keyvals, &n))
{
gint i;
for (i = 0; i < n && ! cancel; i++)
if (keyvals[i] == GDK_Escape)
cancel = TRUE;
g_free (keyvals);
}
}
break;
default:
break;
}
}
if (keys)
{
#define X_UNGRAB_KEY(index, modifiers) \
XUngrabKey (x_dpy, keys[index].keycode, modifiers, x_root)
for (i = 0; i < num_keys; i++)
{
X_UNGRAB_KEY (i, 0);
X_UNGRAB_KEY (i, LockMask); /* CapsLock */
X_UNGRAB_KEY (i, Mod2Mask); /* NumLock */
X_UNGRAB_KEY (i, Mod5Mask); /* ScrollLock */
X_UNGRAB_KEY (i, LockMask | Mod2Mask); /* CapsLock + NumLock */
X_UNGRAB_KEY (i, LockMask | Mod5Mask); /* CapsLock + ScrollLock */
X_UNGRAB_KEY (i, Mod2Mask | Mod5Mask); /* NumLock + ScrollLock */
X_UNGRAB_KEY (i, LockMask | Mod2Mask | Mod5Mask); /* all */
}
#undef X_UNGRAB_KEY
g_free (keys);
}
if (status == GrabSuccess)
XUngrabPointer (x_dpy, CurrentTime);
XFreeCursor (x_dpy, x_cursor);
if (x_gc != NULL)
XFreeGC (x_dpy, x_gc);
return x_win;
}
#endif
#ifdef GDK_WINDOWING_WIN32
static GdkNativeWindow
select_window_win32 (GdkScreen *screen)
{
/* MS Windows specific code goes here (yet to be written) */
/* basically the code should grab the pointer using a crosshair
* cursor, allow the user to click on a window and return the
* obtained HWND (as a GdkNativeWindow) - for more details consult
* the X11 specific code above
*/
/* note to self: take a look at the winsnap plug-in for example code */
#ifdef __GNUC__
#warning Win32 screenshot window chooser not implemented yet
#else
#pragma message("Win32 screenshot window chooser not implemented yet")
#endif
return 0;
}
#endif
static GdkNativeWindow
select_window (GdkScreen *screen)
{
#if defined(GDK_WINDOWING_X11)
return select_window_x11 (screen);
#elif defined(GDK_WINDOWING_WIN32)
return select_window_win32 (screen);
#else
#warning screenshot window chooser not implemented yet for this GDK backend
return 0;
#endif
}
static gchar *
window_get_utf8_property (GdkDisplay *display,
GdkNativeWindow window,
const gchar *name)
{
gchar *retval = NULL;
#if defined(GDK_WINDOWING_X11)
Atom utf8_string;
Atom type = None;
guchar *val = NULL;
gulong nitems = 0;
gulong after = 0;
gint format = 0;
utf8_string = gdk_x11_get_xatom_by_name_for_display (display, "UTF8_STRING");
XGetWindowProperty (GDK_DISPLAY_XDISPLAY (display), window,
gdk_x11_get_xatom_by_name_for_display (display, name),
0, G_MAXLONG, False, utf8_string,
&type, &format, &nitems, &after, &val);
if (type != utf8_string || format != 8 || nitems == 0)
{
if (val)
XFree (val);
return NULL;
}
if (g_utf8_validate ((const gchar *) val, nitems, NULL))
retval = g_strndup ((const gchar *) val, nitems);
XFree (val);
#endif
return retval;
}
static gchar *
window_get_title (GdkDisplay *display,
GdkNativeWindow window)
{
#if defined(GDK_WINDOWING_X11)
#ifdef HAVE_X11_XMU_WINUTIL_H
window = XmuClientWindow (GDK_DISPLAY_XDISPLAY (display), window);
#endif
return window_get_utf8_property (display, window, "_NET_WM_NAME");
#else
return NULL;
#endif
}
static GdkRegion *
window_get_shape (GdkScreen *screen,
GdkNativeWindow window)
{
GdkRegion *shape = NULL;
#if defined(GDK_WINDOWING_X11) && defined(HAVE_X11_EXTENSIONS_SHAPE_H)
XRectangle *rects;
gint rect_count;
gint rect_order;
rects = XShapeGetRectangles (GDK_SCREEN_XDISPLAY (screen), window,
ShapeBounding,
&rect_count, &rect_order);
if (rects)
{
if (rect_count > 1)
{
gint i;
shape = gdk_region_new ();
for (i = 0; i < rect_count; i++)
{
GdkRectangle rect = { rects[i].x,
rects[i].y,
rects[i].width,
rects[i].height };
gdk_region_union_with_rect (shape, &rect);
}
}
XFree (rects);
}
#endif
return shape;
}
static void
image_select_shape (gint32 image,
GdkRegion *shape)
{
GdkRectangle *rects;
gint num_rects;
gint i;
gimp_selection_none (image);
gdk_region_get_rectangles (shape, &rects, &num_rects);
for (i = 0; i < num_rects; i++)
{
gimp_rect_select (image,
rects[i].x, rects[i].y, rects[i].width, rects[i].height,
GIMP_CHANNEL_OP_ADD, FALSE, 0);
}
g_free (rects);
gimp_selection_invert (image);
}
/* Create a GimpImage from a GdkPixbuf */
static gint32
create_image (GdkPixbuf *pixbuf,
GdkRegion *shape,
const gchar *name)
{
gint32 image;
gint32 layer;
gdouble xres, yres;
gchar *comment;
gint width, height;
gboolean status;
status = gimp_progress_init (_("Importing screenshot"));
width = gdk_pixbuf_get_width (pixbuf);
height = gdk_pixbuf_get_height (pixbuf);
image = gimp_image_new (width, height, GIMP_RGB);
gimp_image_undo_disable (image);
gimp_get_monitor_resolution (&xres, &yres);
gimp_image_set_resolution (image, xres, yres);
comment = gimp_get_default_comment ();
if (comment)
{
GimpParasite *parasite;
parasite = gimp_parasite_new ("gimp-comment", GIMP_PARASITE_PERSISTENT,
strlen (comment) + 1, comment);
gimp_image_parasite_attach (image, parasite);
gimp_parasite_free (parasite);
g_free (comment);
}
layer = gimp_layer_new_from_pixbuf (image,
name ? name : _("Screenshot"),
pixbuf,
100, GIMP_NORMAL_MODE, 0.0, 1.0);
gimp_image_add_layer (image, layer, 0);
if (shape && ! gdk_region_empty (shape))
{
image_select_shape (image, shape);
if (! gimp_selection_is_empty (image))
{
gimp_layer_add_alpha (layer);
gimp_edit_clear (layer);
gimp_selection_none (image);
}
}
gimp_image_undo_enable (image);
return image;
}
static void
add_cursor_image (gint32 image,
GdkDisplay *display)
{
#ifdef HAVE_XFIXES
XFixesCursorImage *cursor;
GimpDrawable *drawable;
GimpPixelRgn rgn;
gpointer pr;
gint32 layer;
gint32 active;
cursor = XFixesGetCursorImage (GDK_DISPLAY_XDISPLAY (display));
if (!cursor)
return;
active = gimp_image_get_active_layer (image);
layer = gimp_layer_new (image, _("Mouse Pointer"),
cursor->width, cursor->height,
GIMP_RGBA_IMAGE, 100.0, GIMP_NORMAL_MODE);
drawable = gimp_drawable_get (layer);
gimp_pixel_rgn_init (&rgn, drawable,
0, 0, drawable->width, drawable->height, TRUE, FALSE);
for (pr = gimp_pixel_rgns_register (1, &rgn);
pr != NULL;
pr = gimp_pixel_rgns_process (pr))
{
const gulong *src = cursor->pixels + rgn.y * cursor->width + rgn.x;
guchar *dest = rgn.data;
gint x, y;
for (y = 0; y < rgn.h; y++)
{
const gulong *s = src;
guchar *d = dest;
for (x = 0; x < rgn.w; x++)
{
/* the cursor pixels are pre-multiplied ARGB */
guint a = (*s >> 24) & 0xff;
guint r = (*s >> 16) & 0xff;
guint g = (*s >> 8) & 0xff;
guint b = (*s >> 0) & 0xff;
d[0] = a ? (r * 255) / a : r;
d[1] = a ? (g * 255) / a : g;
d[2] = a ? (b * 255) / a : b;
d[3] = a;
s++;
d += 4;
}
src += cursor->width;
dest += rgn.rowstride;
}
}
gimp_drawable_detach (drawable);
gimp_image_add_layer (image, layer, -1);
gimp_layer_set_offsets (layer,
cursor->x - cursor->xhot, cursor->y - cursor->yhot);
gimp_image_set_active_layer (image, active);
#endif
}
/* The main Screenshot function */
static gint32
shoot (GdkScreen *screen)
{
GdkDisplay *display;
GdkWindow *window;
GdkPixbuf *screenshot;
GdkRegion *shape = NULL;
GdkRectangle rect;
GdkRectangle screen_rect;
gchar *name = NULL;
gint32 image;
gint screen_x;
gint screen_y;
gint x, y;
/* use default screen if we are running non-interactively */
if (screen == NULL)
screen = gdk_screen_get_default ();
display = gdk_screen_get_display (screen);
screen_rect.x = 0;
screen_rect.y = 0;
screen_rect.width = gdk_screen_get_width (screen);
screen_rect.height = gdk_screen_get_height (screen);
if (shootvals.shoot_type == SHOOT_REGION)
{
rect.x = MIN (shootvals.x1, shootvals.x2);
rect.y = MIN (shootvals.y1, shootvals.y2);
rect.width = ABS (shootvals.x2 - shootvals.x1);
rect.height = ABS (shootvals.y2 - shootvals.y1);
}
else
{
if (shootvals.shoot_type == SHOOT_ROOT)
{
window = gdk_screen_get_root_window (screen);
}
else
{
window = gdk_window_foreign_new_for_display (display,
shootvals.window_id);
}
if (! window)
{
g_message (_("Specified window not found"));
return -1;
}
gdk_drawable_get_size (GDK_DRAWABLE (window), &rect.width, &rect.height);
gdk_window_get_origin (window, &x, &y);
rect.x = x;
rect.y = y;
}
if (! gdk_rectangle_intersect (&rect, &screen_rect, &rect))
return -1;
window = gdk_screen_get_root_window (screen);
gdk_window_get_origin (window, &screen_x, &screen_y);
screenshot = gdk_pixbuf_get_from_drawable (NULL, window, NULL,
rect.x - screen_x,
rect.y - screen_y,
0, 0, rect.width, rect.height);
gdk_display_beep (display);
if (! screenshot)
{
g_message (_("There was an error taking the screenshot."));
return -1;
}
if (shootvals.shoot_type == SHOOT_WINDOW)
{
name = window_get_title (display, shootvals.window_id);
shape = window_get_shape (screen, shootvals.window_id);
if (shape)
gdk_region_offset (shape, x - rect.x, y - rect.y);
}
image = create_image (screenshot, shape, name);
g_object_unref (screenshot);
if (shape)
gdk_region_destroy (shape);
g_free (name);
/* FIXME: Some time might have passed until we get here.
* The cursor image should be grabbed together with the screenshot.
*/
if (shootvals.shoot_type == SHOOT_ROOT && shootvals.show_cursor)
add_cursor_image (image, display);
return image;
}
/* Screenshot dialog */
static void
shoot_dialog_add_hint (GtkNotebook *notebook,
ShootType type,
const gchar *hint)
{
GtkWidget *label;
label = g_object_new (GTK_TYPE_LABEL,
"label", hint,
"wrap", TRUE,
"justify", GTK_JUSTIFY_LEFT,
"xalign", 0.0,
"yalign", 0.0,
NULL);
gimp_label_set_attributes (GTK_LABEL (label),
PANGO_ATTR_STYLE, PANGO_STYLE_ITALIC,
-1);
gtk_notebook_insert_page (notebook, label, NULL, type);
gtk_widget_show (label);
}
static void
shoot_radio_button_toggled (GtkWidget *widget,
GtkWidget *notebook)
{
gimp_radio_button_update (widget, &shootvals.shoot_type);
gtk_notebook_set_current_page (GTK_NOTEBOOK (notebook), shootvals.shoot_type);
}
static gboolean
shoot_dialog (GdkScreen **screen)
{
GtkWidget *dialog;
GtkWidget *main_vbox;
GtkWidget *notebook;
GtkWidget *frame;
GtkWidget *vbox;
GtkWidget *hbox;
GtkWidget *label;
GtkWidget *button;
GtkWidget *toggle;
GtkWidget *spinner;
GdkPixbuf *pixbuf;
GSList *radio_group = NULL;
GtkObject *adj;
gboolean run;
gimp_ui_init (PLUG_IN_BINARY, FALSE);
dialog = gimp_dialog_new (_("Screenshot"), PLUG_IN_BINARY,
NULL, 0,
gimp_standard_help_func, PLUG_IN_PROC,
GTK_STOCK_CANCEL, GTK_RESPONSE_CANCEL,
NULL);
button = gtk_dialog_add_button (GTK_DIALOG (dialog),
_("S_nap"), GTK_RESPONSE_OK);
gtk_dialog_set_alternative_button_order (GTK_DIALOG (dialog),
GTK_RESPONSE_OK,
GTK_RESPONSE_CANCEL,
-1);
pixbuf = gdk_pixbuf_new_from_inline (-1, screenshot_icon, FALSE, NULL);
if (pixbuf)
{
gtk_button_set_image (GTK_BUTTON (button),
gtk_image_new_from_pixbuf (pixbuf));
g_object_unref (pixbuf);
}
main_vbox = gtk_vbox_new (FALSE, 12);
gtk_container_set_border_width (GTK_CONTAINER (main_vbox), 12);
gtk_box_pack_start (GTK_BOX (gtk_dialog_get_content_area (GTK_DIALOG (dialog))),
main_vbox, FALSE, FALSE, 0);
gtk_widget_show (main_vbox);
/* Hints */
notebook = g_object_new (GTK_TYPE_NOTEBOOK,
"show-border", FALSE,
"show-tabs", FALSE,
NULL);
gtk_box_pack_end (GTK_BOX (main_vbox), notebook, FALSE, FALSE, 0);
gtk_widget_show (notebook);
shoot_dialog_add_hint (GTK_NOTEBOOK (notebook), SHOOT_ROOT,
_("After the delay, the screenshot is taken."));
shoot_dialog_add_hint (GTK_NOTEBOOK (notebook), SHOOT_REGION,
_("After the delay, drag your mouse to select "
"the region for the screenshot."));
shoot_dialog_add_hint (GTK_NOTEBOOK (notebook), SHOOT_WINDOW,
_("At the end of the delay, click in a window "
"to snap it."));
gtk_notebook_set_current_page (GTK_NOTEBOOK (notebook), shootvals.shoot_type);
/* Area */
frame = gimp_frame_new (_("Area"));
gtk_box_pack_start (GTK_BOX (main_vbox), frame, FALSE, FALSE, 0);
gtk_widget_show (frame);
vbox = gtk_vbox_new (FALSE, 6);
gtk_container_add (GTK_CONTAINER (frame), vbox);
gtk_widget_show (vbox);
/* single window */
button = gtk_radio_button_new_with_mnemonic (radio_group,
_("Take a screenshot of "
"a single _window"));
radio_group = gtk_radio_button_get_group (GTK_RADIO_BUTTON (button));
gtk_box_pack_start (GTK_BOX (vbox), button, FALSE, FALSE, 0);
gtk_widget_show (button);
g_object_set_data (G_OBJECT (button), "gimp-item-data",
GINT_TO_POINTER (SHOOT_WINDOW));
g_signal_connect (button, "toggled",
G_CALLBACK (shoot_radio_button_toggled),
notebook);
#ifdef HAVE_X11_XMU_WINUTIL_H
/* window decorations */
hbox = gtk_hbox_new (FALSE, 12);
gtk_box_pack_start (GTK_BOX (vbox), hbox, FALSE, FALSE, 0);
gtk_widget_show (hbox);
toggle = gtk_check_button_new_with_mnemonic (_("Include window _decoration"));
gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (toggle), shootvals.decorate);
gtk_box_pack_start (GTK_BOX (hbox), toggle, TRUE, TRUE, 24);
gtk_widget_show (toggle);
g_object_set_data (G_OBJECT (button), "set_sensitive", toggle);
g_signal_connect (toggle, "toggled",
G_CALLBACK (gimp_toggle_button_update),
&shootvals.decorate);
#endif /* HAVE_X11_XMU_WINUTIL_H */
gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (button),
shootvals.shoot_type == SHOOT_WINDOW);
/* whole screen */
button = gtk_radio_button_new_with_mnemonic (radio_group,
_("Take a screenshot of "
"the entire _screen"));
radio_group = gtk_radio_button_get_group (GTK_RADIO_BUTTON (button));
gtk_box_pack_start (GTK_BOX (vbox), button, FALSE, FALSE, 0);
gtk_widget_show (button);
g_object_set_data (G_OBJECT (button), "gimp-item-data",
GINT_TO_POINTER (SHOOT_ROOT));
g_signal_connect (button, "toggled",
G_CALLBACK (shoot_radio_button_toggled),
notebook);
#ifdef HAVE_XFIXES
/* mouse pointer */
hbox = gtk_hbox_new (FALSE, 12);
gtk_box_pack_start (GTK_BOX (vbox), hbox, FALSE, FALSE, 0);
gtk_widget_show (hbox);
toggle = gtk_check_button_new_with_mnemonic (_("Include _mouse pointer"));
gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (toggle),
shootvals.show_cursor);
gtk_box_pack_start (GTK_BOX (hbox), toggle, TRUE, TRUE, 24);
gtk_widget_show (toggle);
gtk_widget_set_sensitive (toggle, FALSE);
g_object_set_data (G_OBJECT (button), "set_sensitive", toggle);
g_signal_connect (toggle, "toggled",
G_CALLBACK (gimp_toggle_button_update),
&shootvals.show_cursor);
#endif
gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (button),
shootvals.shoot_type == SHOOT_ROOT);
/* dragged region */
button = gtk_radio_button_new_with_mnemonic (radio_group,
_("Select a _region to grab"));
radio_group = gtk_radio_button_get_group (GTK_RADIO_BUTTON (button));
gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (button),
shootvals.shoot_type == SHOOT_REGION);
gtk_box_pack_start (GTK_BOX (vbox), button, FALSE, FALSE, 0);
gtk_widget_show (button);
g_object_set_data (G_OBJECT (button), "gimp-item-data",
GINT_TO_POINTER (SHOOT_REGION));
g_signal_connect (button, "toggled",
G_CALLBACK (shoot_radio_button_toggled),
notebook);
/* Delay */
frame = gimp_frame_new (_("Delay"));
gtk_box_pack_start (GTK_BOX (main_vbox), frame, FALSE, FALSE, 0);
gtk_widget_show (frame);
vbox = gtk_vbox_new (FALSE, 6);
gtk_container_add (GTK_CONTAINER (frame), vbox);
gtk_widget_show (vbox);
hbox = gtk_hbox_new (FALSE, 6);
gtk_box_pack_start (GTK_BOX (vbox), hbox, FALSE, FALSE, 0);
gtk_widget_show (hbox);
spinner = gimp_spin_button_new (&adj, shootvals.select_delay,
0.0, 100.0, 1.0, 5.0, 0.0, 0, 0);
gtk_box_pack_start (GTK_BOX (hbox), spinner, FALSE, FALSE, 0);
gtk_widget_show (spinner);
g_signal_connect (adj, "value-changed",
G_CALLBACK (gimp_int_adjustment_update),
&shootvals.select_delay);
/* this is the unit label of a spinbutton */
label = gtk_label_new (_("seconds"));
gtk_box_pack_start (GTK_BOX (hbox), label, FALSE, FALSE, 0);
gtk_widget_show (label);
gtk_widget_show (dialog);
run = (gimp_dialog_run (GIMP_DIALOG (dialog)) == GTK_RESPONSE_OK);
if (run)
{
/* get the screen on which we are running */
*screen = gtk_widget_get_screen (dialog);
}
gtk_widget_destroy (dialog);
if (run)
{
/* A short timeout to give the server a chance to
* redraw the area that was obscured by our dialog.
*/
g_timeout_add (100, shoot_quit_timeout, NULL);
gtk_main ();
}
return run;
}
/* delay functions */
static void
shoot_delay (gint delay)
{
g_timeout_add (1000, shoot_delay_callback, &delay);
gtk_main ();
}
static gboolean
shoot_delay_callback (gpointer data)
{
gint *seconds_left = data;
(*seconds_left)--;
if (!*seconds_left)
gtk_main_quit ();
return *seconds_left;
}
static gboolean
shoot_quit_timeout (gpointer data)
{
gtk_main_quit ();
return FALSE;
}
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