gimp/libgimpwidgets/gimpwidgetsutils.h

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/* LIBGIMP - The GIMP Library
* Copyright (C) 1995-1997 Peter Mattis and Spencer Kimball
*
* gimpwidgetsutils.h
*
* 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 3 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, see
* <https://www.gnu.org/licenses/>.
*/
#if !defined (__GIMP_WIDGETS_H_INSIDE__) && !defined (GIMP_WIDGETS_COMPILATION)
#error "Only <libgimpwidgets/gimpwidgets.h> can be included directly."
#endif
#ifndef __GIMP_WIDGETS_UTILS_H__
#define __GIMP_WIDGETS_UTILS_H__
G_BEGIN_DECLS
/* For information look into the C source or the html documentation */
gboolean gimp_event_triggers_context_menu (const GdkEvent *event,
gboolean on_release);
GtkWidget * gimp_grid_attach_aligned (GtkGrid *grid,
gint left,
gint top,
const gchar *label_text,
gfloat label_xalign,
gfloat label_yalign,
GtkWidget *widget,
gint widget_columns);
void gimp_label_set_attributes (GtkLabel *label,
...);
GdkMonitor * gimp_widget_get_monitor (GtkWidget *widget);
GdkMonitor * gimp_get_monitor_at_pointer (void);
void gimp_widget_track_monitor (GtkWidget *widget,
GCallback monitor_changed_callback,
gpointer user_data,
GDestroyNotify user_data_destroy);
GimpColorProfile * gimp_monitor_get_color_profile (GdkMonitor *monitor);
GimpColorProfile * gimp_widget_get_color_profile (GtkWidget *widget);
GimpColorTransform * gimp_widget_get_color_transform (GtkWidget *widget,
GimpColorConfig *config,
GimpColorProfile *src_profile,
const Babl *src_format,
const Babl *dest_format,
GimpColorProfile *softproof_profile,
GimpColorRenderingIntent proof_intent,
gboolean proof_bpc);
app, libgimp*, pdb, plug-ins: reimplement generic inter-process transient window. Having windows ID as guint32 is a mistake. Different systems have different protocols. In Wayland in particular, Windows handles are exchanged as strings. What this commit does is the following: In core: - get_window_id() virtual function in core GimpProgress is changed to return a GBytes, as a generic "data" to represent a window differently on different systems. - All implementations of get_window_id() in various classes implementing this interface are updated accordingly: * GimpSubProgress * GimpDisplay returns the handle of its shell. * GimpDisplayShell now creates its window handle at construction with libgimpwidget's gimp_widget_set_native_handle() and simply return this handle every time it's requested. * GimpFileDialog also creates its window handle at construction with gimp_widget_set_native_handle(). - gimp_window_set_transient_for() in core is changed to take a GimpProgress as argument (instead of a guint32 ID), requests and process the ID itself, according to the running platform. In particular, the following were improved: * Unlike old code, it will work even if the window is not visible yet. In such a case, the function simply adds a signal handler to set transient at mapping. It makes it easier to use it at construction in a reliable way. * It now works for Wayland too, additionally to X11. - GimpPdbProgress now exchanges a GBytes too with the command GIMP_PROGRESS_COMMAND_GET_WINDOW. - display_get_window_id() in gimp-gui.h also returns a GBytes now. PDB/libgimp: - gimp_display_get_window_handle() and gimp_progress_get_window_handle() now return a GBytes to represent a window handle in an opaque way (depending on the running platform). In libgimp: - GimpProgress's get_window() virtual function changed to return a GBytes and renamed get_window_handle(). - In particular GimpProgressBar is the only implementation of get_window_handle(). It creates its handle at object construction with libgimpwidget's gimp_widget_set_native_handle() and the virtual method's implementation simply returns the GBytes. In libgimpUi: - gimp_ui_get_display_window() and gimp_ui_get_progress_window() were removed. We should not assume anymore that it is possible to create a GdkWindow to be used. For instance this is not possible with Wayland which has its own way to set a window transient with a string handle. - gimp_window_set_transient_for_display() and gimp_window_set_transient() now use an internal implementation similar to core gimp_window_set_transient_for(), with the same improvements (works even at construction when the window is not visible yet + works for Wayland too). In libgimpwidgets: - New gimp_widget_set_native_handle() is a helper function used both in core and libgimp* libraries for widgets which we want to be usable as possible parents. It takes care of getting the relevant window handle (depending on the running platform) and stores it in a given pointer, either immediately or after a callback once the widget is mapped. So it can be used at construction. Also it sets a handle for X11 or Wayland. In plug-ins: - Screenshot uses the new gimp_progress_get_window_handle() directly now in its X11 code path and creates out of it a GdkWindows itself with gdk_x11_window_foreign_new_for_display(). Our inter-process transient implementation only worked for X11, and with this commit, it works for Wayland too. There is code for Windows but it is currently disabled as it apparently hangs (there is a comment in-code which links to this old report: https://bugzilla.gnome.org/show_bug.cgi?id=359538). NikcDC tested yesterday with re-enabling the code and said they experienced a freeze. ;-( Finally there is no infrastructure yet to make this work on macOS and apparently there is no implementation of window handle in GDK for macOS that I could find. I'm not sure if macOS doesn't have this concept of setting transient on another processus's window or GDK is simply lacking the implementation.
2023-08-14 20:23:06 +08:00
void gimp_widget_set_native_handle (GtkWidget *widget,
GBytes **handle);
G_END_DECLS
#endif /* __GIMP_WIDGETS_UTILS_H__ */