Adding upstream version 2.10.36.upstream/2.10.36

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

1 files changed, 305 insertions, 0 deletions

diff --git a/app/display/gimpdisplayshell-layer-select.c b/app/display/gimpdisplayshell-layer-select.c
new file mode 100644
index 0000000..0618eea
--- /dev/null
+++ b/app/display/gimpdisplayshell-layer-select.c
@@ -0,0 +1,305 @@
+/* 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 <https://www.gnu.org/licenses/>.
+ */
+
+#include "config.h"
+
+#include <gegl.h>
+#include <gtk/gtk.h>
+#include <gdk/gdkkeysyms.h>
+
+#include "libgimpwidgets/gimpwidgets.h"
+
+#include "display-types.h"
+
+#include "config/gimpcoreconfig.h"
+
+#include "core/gimp.h"
+#include "core/gimpcontainer.h"
+#include "core/gimpimage.h"
+#include "core/gimplayer.h"
+
+#include "widgets/gimpview.h"
+#include "widgets/gimpviewrenderer.h"
+
+#include "gimpdisplay.h"
+#include "gimpdisplayshell.h"
+#include "gimpdisplayshell-layer-select.h"
+
+#include "gimp-intl.h"
+
+
+typedef struct
+{
+  GtkWidget *window;
+  GtkWidget *view;
+  GtkWidget *label;
+
+  GimpImage *image;
+  GimpLayer *orig_layer;
+} LayerSelect;
+
+
+/*  local function prototypes  */
+
+static LayerSelect * layer_select_new       (GimpDisplayShell *shell,
+                                             GimpImage        *image,
+                                             GimpLayer        *layer,
+                                             gint              view_size);
+static void          layer_select_destroy   (LayerSelect      *layer_select,
+                                             guint32           time);
+static void          layer_select_advance   (LayerSelect      *layer_select,
+                                             gint              move);
+static gboolean      layer_select_events    (GtkWidget        *widget,
+                                             GdkEvent         *event,
+                                             LayerSelect      *layer_select);
+
+
+/*  public functions  */
+
+void
+gimp_display_shell_layer_select_init (GimpDisplayShell *shell,
+                                      gint              move,
+                                      guint32           time)
+{
+  LayerSelect   *layer_select;
+  GimpImage     *image;
+  GimpLayer     *layer;
+  GdkGrabStatus  status;
+
+  g_return_if_fail (GIMP_IS_DISPLAY_SHELL (shell));
+
+  image = gimp_display_get_image (shell->display);
+
+  layer = gimp_image_get_active_layer (image);
+
+  if (! layer)
+    return;
+
+  layer_select = layer_select_new (shell, image, layer,
+                                   image->gimp->config->layer_preview_size);
+  layer_select_advance (layer_select, move);
+
+  gtk_window_set_screen (GTK_WINDOW (layer_select->window),
+                         gtk_widget_get_screen (GTK_WIDGET (shell)));
+
+  gtk_widget_show (layer_select->window);
+
+  status = gdk_keyboard_grab (gtk_widget_get_window (layer_select->window), FALSE, time);
+  if (status != GDK_GRAB_SUCCESS)
+    g_printerr ("gdk_keyboard_grab failed with status %d\n", status);
+}
+
+
+/*  private functions  */
+
+static LayerSelect *
+layer_select_new (GimpDisplayShell *shell,
+                  GimpImage        *image,
+                  GimpLayer        *layer,
+                  gint              view_size)
+{
+  LayerSelect *layer_select;
+  GtkWidget   *frame1;
+  GtkWidget   *frame2;
+  GtkWidget   *hbox;
+  GtkWidget   *alignment;
+
+  layer_select = g_slice_new0 (LayerSelect);
+
+  layer_select->image      = image;
+  layer_select->orig_layer = layer;
+
+  layer_select->window = gtk_window_new (GTK_WINDOW_POPUP);
+  gtk_window_set_role (GTK_WINDOW (layer_select->window), "gimp-layer-select");
+  gtk_window_set_title (GTK_WINDOW (layer_select->window), _("Layer Select"));
+  gtk_window_set_position (GTK_WINDOW (layer_select->window), GTK_WIN_POS_MOUSE);
+  gtk_widget_set_events (layer_select->window,
+                         GDK_KEY_PRESS_MASK   |
+                         GDK_KEY_RELEASE_MASK |
+                         GDK_BUTTON_PRESS_MASK);
+
+  g_signal_connect (layer_select->window, "event",
+                    G_CALLBACK (layer_select_events),
+                    layer_select);
+
+  frame1 = gtk_frame_new (NULL);
+  gtk_frame_set_shadow_type (GTK_FRAME (frame1), GTK_SHADOW_OUT);
+  gtk_container_add (GTK_CONTAINER (layer_select->window), frame1);
+  gtk_widget_show (frame1);
+
+  frame2 = gtk_frame_new (NULL);
+  gtk_frame_set_shadow_type (GTK_FRAME (frame2), GTK_SHADOW_IN);
+  gtk_container_add (GTK_CONTAINER (frame1), frame2);
+  gtk_widget_show (frame2);
+
+  hbox = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 6);
+  gtk_container_set_border_width (GTK_CONTAINER (hbox), 6);
+  gtk_container_add (GTK_CONTAINER (frame2), hbox);
+  gtk_widget_show (hbox);
+
+  /*  The view  */
+  alignment = gtk_alignment_new (0.5, 0.5, 0.0, 0.0);
+  gtk_box_pack_start (GTK_BOX (hbox), alignment, FALSE, FALSE, 0);
+  gtk_widget_show (alignment);
+
+  layer_select->view =
+    gimp_view_new_by_types (gimp_get_user_context (image->gimp),
+                            GIMP_TYPE_VIEW,
+                            GIMP_TYPE_LAYER,
+                            view_size, 1, FALSE);
+  gimp_view_renderer_set_color_config (GIMP_VIEW (layer_select->view)->renderer,
+                                       gimp_display_shell_get_color_config (shell));
+  gimp_view_set_viewable (GIMP_VIEW (layer_select->view),
+                          GIMP_VIEWABLE (layer));
+  gtk_container_add (GTK_CONTAINER (alignment), layer_select->view);
+  gtk_widget_show (layer_select->view);
+  gtk_widget_show (alignment);
+
+  /*  the layer name label */
+  layer_select->label = gtk_label_new (gimp_object_get_name (layer));
+  gtk_box_pack_start (GTK_BOX (hbox), layer_select->label, FALSE, FALSE, 0);
+  gtk_widget_show (layer_select->label);
+
+  return layer_select;
+}
+
+static void
+layer_select_destroy (LayerSelect *layer_select,
+                      guint32      time)
+{
+  gdk_display_keyboard_ungrab (gtk_widget_get_display (layer_select->window),
+                                                       time);
+
+  gtk_widget_destroy (layer_select->window);
+
+  if (layer_select->orig_layer !=
+      gimp_image_get_active_layer (layer_select->image))
+    {
+      gimp_image_flush (layer_select->image);
+    }
+
+  g_slice_free (LayerSelect, layer_select);
+}
+
+static void
+layer_select_advance (LayerSelect *layer_select,
+                      gint         move)
+{
+  GimpLayer *active_layer;
+  GimpLayer *next_layer;
+  GList     *layers;
+  gint       n_layers;
+  gint       index;
+
+  if (move == 0)
+    return;
+
+  /*  If there is a floating selection, allow no advancement  */
+  if (gimp_image_get_floating_selection (layer_select->image))
+    return;
+
+  active_layer = gimp_image_get_active_layer (layer_select->image);
+
+  layers   = gimp_image_get_layer_list (layer_select->image);
+  n_layers = g_list_length (layers);
+
+  index = g_list_index (layers, active_layer);
+  index += move;
+
+  if (index < 0)
+    index = n_layers - 1;
+  else if (index >= n_layers)
+    index = 0;
+
+  next_layer = g_list_nth_data (layers, index);
+
+  g_list_free (layers);
+
+  if (next_layer && next_layer != active_layer)
+    {
+      active_layer = gimp_image_set_active_layer (layer_select->image,
+                                                  next_layer);
+
+      if (active_layer)
+        {
+          gimp_view_set_viewable (GIMP_VIEW (layer_select->view),
+                                  GIMP_VIEWABLE (active_layer));
+          gtk_label_set_text (GTK_LABEL (layer_select->label),
+                              gimp_object_get_name (active_layer));
+        }
+    }
+}
+
+static gboolean
+layer_select_events (GtkWidget   *widget,
+                     GdkEvent    *event,
+                     LayerSelect *layer_select)
+{
+  GdkEventKey    *kevent;
+  GdkEventButton *bevent;
+
+  switch (event->type)
+    {
+    case GDK_BUTTON_PRESS:
+      bevent = (GdkEventButton *) event;
+
+      layer_select_destroy (layer_select, bevent->time);
+      break;
+
+    case GDK_KEY_PRESS:
+      kevent = (GdkEventKey *) event;
+
+      switch (kevent->keyval)
+        {
+        case GDK_KEY_Tab:
+          layer_select_advance (layer_select, 1);
+          break;
+        case GDK_KEY_ISO_Left_Tab:
+          layer_select_advance (layer_select, -1);
+          break;
+        }
+      return TRUE;
+      break;
+
+    case GDK_KEY_RELEASE:
+      kevent = (GdkEventKey *) event;
+
+      switch (kevent->keyval)
+        {
+        case GDK_KEY_Alt_L: case GDK_KEY_Alt_R:
+          kevent->state &= ~GDK_MOD1_MASK;
+          break;
+        case GDK_KEY_Control_L: case GDK_KEY_Control_R:
+          kevent->state &= ~GDK_CONTROL_MASK;
+          break;
+        case GDK_KEY_Shift_L: case GDK_KEY_Shift_R:
+          kevent->state &= ~GDK_SHIFT_MASK;
+          break;
+        }
+
+      if (! (kevent->state & GDK_CONTROL_MASK))
+        layer_select_destroy (layer_select, kevent->time);
+
+      return TRUE;
+      break;
+
+    default:
+      break;
+    }
+
+  return FALSE;
+}