[gimp] app: new "context-dynamics-toggle" action.

[Jehan <jehanp src gnome org>]

commit 849bd0ac473897cca7762f64e294ccf10402023b
Author: Jehan <jehan girinstud io>
Date:   Fri Feb 4 14:50:49 2022 +0100

    app: new "context-dynamics-toggle" action.
    
    As the name implies, this is an action to toggle the paint dynamics ON
    and OFF which can be a huge time saver when painting and needing to
    switch between dynamics and non-dynamics painting.
    
    I have not been adding this action in the "dynamics-action" group
    because these are only used for the dynamics dockable menu. Also it
    looks like the context actions are not visible in the action search (I
    can't recall why, but I think there was a reason), yet you can still set
    a shortcut.
    Should we create a new "paint-action" group maybe?

 app/actions/context-actions.c  | 14 ++++++++++++++
 app/actions/context-commands.c | 34 ++++++++++++++++++++++++++++++++++
 app/actions/context-commands.h |  4 ++++
 3 files changed, 52 insertions(+)
---
diff --git a/app/actions/context-actions.c b/app/actions/context-actions.c
index aef16abe4b..5c11ae3d66 100644
--- a/app/actions/context-actions.c
+++ b/app/actions/context-actions.c
@@ -1087,6 +1087,16 @@ static const GimpEnumActionEntry context_brush_angle_actions[] =
     NULL }
 };
 
+static const GimpToggleActionEntry context_toggle_actions[] =
+{
+  { "context-dynamics-toggle", NULL,
+    NC_("context-action", "_Enable/Disable Dynamics"), NULL,
+    NC_("context-action", "Apply or ignore the dynamics when painting"),
+    context_toggle_dynamics_cmd_callback,
+    FALSE,
+    NULL },
+};
+
 
 void
 context_actions_setup (GimpActionGroup *group)
@@ -1237,6 +1247,10 @@ context_actions_setup (GimpActionGroup *group)
                                       context_brush_angle_actions,
                                       G_N_ELEMENTS (context_brush_angle_actions),
                                       context_brush_angle_cmd_callback);
+
+  gimp_action_group_add_toggle_actions (group, "context-action",
+                                        context_toggle_actions,
+                                        G_N_ELEMENTS (context_toggle_actions));
 }
 
 void
diff --git a/app/actions/context-commands.c b/app/actions/context-commands.c
index 61d9e90e87..e6c20049b9 100644
--- a/app/actions/context-commands.c
+++ b/app/actions/context-commands.c
@@ -35,6 +35,7 @@
 #include "core/gimpcontext.h"
 #include "core/gimpdatafactory.h"
 #include "core/gimplist.h"
+#include "core/gimppaintinfo.h"
 #include "core/gimptoolinfo.h"
 
 #include "paint/gimppaintoptions.h"
@@ -797,6 +798,39 @@ context_brush_angle_cmd_callback (GimpAction *action,
     }
 }
 
+void
+context_toggle_dynamics_cmd_callback (GimpAction *action,
+                                      GVariant   *value,
+                                      gpointer    data)
+{
+  GimpContext   *context;
+  GimpPaintInfo *paint_info;
+  gboolean       enabled;
+
+  return_if_no_context (context, data);
+
+  paint_info = gimp_context_get_paint_info (context);
+  if (paint_info)
+    {
+      GimpPaintOptions *paint_options;
+      GimpDisplay      *display;
+
+      paint_options = paint_info->paint_options;
+      enabled = gimp_paint_options_are_dynamics_enabled (paint_options);
+
+      gimp_paint_options_enable_dynamics (paint_options, ! enabled);
+
+      display = action_data_get_display (data);
+
+      if (enabled)
+        action_message (display, G_OBJECT (paint_options),
+                        _("Dynamics disabled"));
+      else
+        action_message (display, G_OBJECT (paint_options),
+                        _("Dynamics enabled"));
+    }
+}
+
 
 /*  private functions  */
 
diff --git a/app/actions/context-commands.h b/app/actions/context-commands.h
index 76fe716190..0e486d534b 100644
--- a/app/actions/context-commands.h
+++ b/app/actions/context-commands.h
@@ -136,5 +136,9 @@ void   context_brush_angle_cmd_callback           (GimpAction *action,
                                                    GVariant   *value,
                                                    gpointer    data);
 
+void   context_toggle_dynamics_cmd_callback       (GimpAction *action,
+                                                   GVariant   *value,
+                                                   gpointer    data);
+
 
 #endif /* __CONTEXT_COMMANDS_H__ */