Adding upstream version 2.10.22.upstream/2.10.22upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 165 insertions, 0 deletions

diff --git a/libgimpwidgets/gimpbutton.c b/libgimpwidgets/gimpbutton.c
new file mode 100644
index 0000000..67039ac
--- /dev/null
+++ b/libgimpwidgets/gimpbutton.c
@@ -0,0 +1,165 @@
+/* LIBGIMP - The GIMP Library
+ * Copyright (C) 1995-1997 Peter Mattis and Spencer Kimball
+ *
+ * gimpbutton.c
+ * Copyright (C) 2000-2008 Michael Natterer <mitch@gimp.org>
+ *
+ * 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/>.
+ */
+
+#include "config.h"
+
+#include <gtk/gtk.h>
+
+#include "gimpwidgetstypes.h"
+
+#include "gimpbutton.h"
+#include "gimp3migration.h"
+
+
+/**
+ * SECTION: gimpbutton
+ * @title: GimpButton
+ * @short_description: A #GtkButton with a little extra functionality.
+ *
+ * #GimpButton adds an extra signal to the #GtkButton widget that
+ * allows the callback to distinguish a normal click from a click that
+ * was performed with modifier keys pressed.
+ **/
+
+
+enum
+{
+  EXTENDED_CLICKED,
+  LAST_SIGNAL
+};
+
+
+static gboolean   gimp_button_button_press (GtkWidget      *widget,
+                                            GdkEventButton *event);
+static void       gimp_button_clicked      (GtkButton      *button);
+
+
+G_DEFINE_TYPE (GimpButton, gimp_button, GTK_TYPE_BUTTON)
+
+#define parent_class gimp_button_parent_class
+
+static guint button_signals[LAST_SIGNAL] = { 0 };
+
+
+static void
+gimp_button_class_init (GimpButtonClass *klass)
+{
+  GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass);
+  GtkButtonClass *button_class = GTK_BUTTON_CLASS (klass);
+
+  /**
+   * GimpButton::extended-clicked:
+   * @gimpbutton: the object that received the signal.
+   * @arg1: the state of modifier keys when the button was clicked
+   *
+   * This signal is emitted when the button is clicked with a modifier
+   * key pressed.
+   **/
+  button_signals[EXTENDED_CLICKED] =
+    g_signal_new ("extended-clicked",
+                  G_TYPE_FROM_CLASS (klass),
+                  G_SIGNAL_RUN_FIRST,
+                  G_STRUCT_OFFSET (GimpButtonClass, extended_clicked),
+                  NULL, NULL,
+                  g_cclosure_marshal_VOID__FLAGS,
+                  G_TYPE_NONE, 1,
+                  GDK_TYPE_MODIFIER_TYPE);
+
+  widget_class->button_press_event = gimp_button_button_press;
+
+  button_class->clicked            = gimp_button_clicked;
+}
+
+static void
+gimp_button_init (GimpButton *button)
+{
+  button->press_state = 0;
+}
+
+/**
+ * gimp_button_new:
+ *
+ * Creates a new #GimpButton widget.
+ *
+ * Returns: A pointer to the new #GimpButton widget.
+ **/
+GtkWidget *
+gimp_button_new (void)
+{
+  return g_object_new (GIMP_TYPE_BUTTON, NULL);
+}
+
+/**
+ * gimp_button_extended_clicked:
+ * @button: a #GimpButton.
+ * @state:  a state as found in #GdkEventButton->state, e.g. #GDK_SHIFT_MASK.
+ *
+ * Emits the button's "extended_clicked" signal.
+ **/
+void
+gimp_button_extended_clicked (GimpButton      *button,
+                              GdkModifierType  state)
+{
+  g_return_if_fail (GIMP_IS_BUTTON (button));
+
+  g_signal_emit (button, button_signals[EXTENDED_CLICKED], 0, state);
+}
+
+static gboolean
+gimp_button_button_press (GtkWidget      *widget,
+                          GdkEventButton *bevent)
+{
+  GimpButton *button = GIMP_BUTTON (widget);
+
+  if (bevent->button == 1)
+    {
+      button->press_state = bevent->state;
+    }
+  else
+    {
+      button->press_state = 0;
+    }
+
+  return GTK_WIDGET_CLASS (parent_class)->button_press_event (widget, bevent);
+}
+
+static void
+gimp_button_clicked (GtkButton *button)
+{
+  if (GIMP_BUTTON (button)->press_state &
+      (GDK_SHIFT_MASK | GDK_CONTROL_MASK | GDK_MOD1_MASK |
+       gtk_widget_get_modifier_mask (GTK_WIDGET (button),
+                                     GDK_MODIFIER_INTENT_PRIMARY_ACCELERATOR) |
+       gtk_widget_get_modifier_mask (GTK_WIDGET (button),
+                                     GDK_MODIFIER_INTENT_EXTEND_SELECTION) |
+       gtk_widget_get_modifier_mask (GTK_WIDGET (button),
+                                     GDK_MODIFIER_INTENT_MODIFY_SELECTION)))
+    {
+      g_signal_stop_emission_by_name (button, "clicked");
+
+      gimp_button_extended_clicked (GIMP_BUTTON (button),
+                                    GIMP_BUTTON (button)->press_state);
+    }
+  else if (GTK_BUTTON_CLASS (parent_class)->clicked)
+    {
+      GTK_BUTTON_CLASS (parent_class)->clicked (button);
+    }
+}