Adding upstream version 2.10.34.upstream/2.10.34upstream

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

1 files changed, 497 insertions, 0 deletions

diff --git a/app/widgets/gimpoverlaybox.c b/app/widgets/gimpoverlaybox.c
new file mode 100644
index 0000000..a1bf47f
--- /dev/null
+++ b/app/widgets/gimpoverlaybox.c
@@ -0,0 +1,497 @@
+/* GIMP - The GNU Image Manipulation Program
+ * Copyright (C) 1995 Spencer Kimball and Peter Mattis
+ *
+ * GimpOverlayBox
+ * Copyright (C) 2009 Michael Natterer <mitch@gimp.org>
+ *
+ * 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 <gtk/gtk.h>
+
+#include "widgets-types.h"
+
+#include "gimpoverlaybox.h"
+#include "gimpoverlaychild.h"
+
+
+/*  local function prototypes  */
+
+static void        gimp_overlay_box_set_property        (GObject        *object,
+                                                         guint           property_id,
+                                                         const GValue   *value,
+                                                         GParamSpec     *pspec);
+static void        gimp_overlay_box_get_property        (GObject        *object,
+                                                         guint           property_id,
+                                                         GValue         *value,
+                                                         GParamSpec     *pspec);
+
+static void        gimp_overlay_box_realize             (GtkWidget      *widget);
+static void        gimp_overlay_box_unrealize           (GtkWidget      *widget);
+static void        gimp_overlay_box_size_request        (GtkWidget      *widget,
+                                                         GtkRequisition *requisition);
+static void        gimp_overlay_box_size_allocate       (GtkWidget      *widget,
+                                                         GtkAllocation  *allocation);
+static gboolean    gimp_overlay_box_expose              (GtkWidget      *widget,
+                                                         GdkEventExpose *event);
+static gboolean    gimp_overlay_box_damage              (GtkWidget      *widget,
+                                                         GdkEventExpose *event);
+
+static void        gimp_overlay_box_add                 (GtkContainer   *container,
+                                                         GtkWidget      *widget);
+static void        gimp_overlay_box_remove              (GtkContainer   *container,
+                                                         GtkWidget      *widget);
+static void        gimp_overlay_box_forall              (GtkContainer   *container,
+                                                         gboolean        include_internals,
+                                                         GtkCallback     callback,
+                                                         gpointer        callback_data);
+static GType       gimp_overlay_box_child_type          (GtkContainer   *container);
+
+static GdkWindow * gimp_overlay_box_pick_embedded_child (GdkWindow      *window,
+                                                         gdouble         x,
+                                                         gdouble         y,
+                                                         GimpOverlayBox *box);
+
+
+G_DEFINE_TYPE (GimpOverlayBox, gimp_overlay_box, GTK_TYPE_CONTAINER)
+
+#define parent_class gimp_overlay_box_parent_class
+
+
+static void
+gimp_overlay_box_class_init (GimpOverlayBoxClass *klass)
+{
+  GObjectClass      *object_class    = G_OBJECT_CLASS (klass);
+  GtkWidgetClass    *widget_class    = GTK_WIDGET_CLASS (klass);
+  GtkContainerClass *container_class = GTK_CONTAINER_CLASS (klass);
+
+  object_class->set_property  = gimp_overlay_box_set_property;
+  object_class->get_property  = gimp_overlay_box_get_property;
+
+  widget_class->realize       = gimp_overlay_box_realize;
+  widget_class->unrealize     = gimp_overlay_box_unrealize;
+  widget_class->size_request  = gimp_overlay_box_size_request;
+  widget_class->size_allocate = gimp_overlay_box_size_allocate;
+  widget_class->expose_event  = gimp_overlay_box_expose;
+
+  g_signal_override_class_handler ("damage-event",
+                                   GIMP_TYPE_OVERLAY_BOX,
+                                   G_CALLBACK (gimp_overlay_box_damage));
+
+  container_class->add        = gimp_overlay_box_add;
+  container_class->remove     = gimp_overlay_box_remove;
+  container_class->forall     = gimp_overlay_box_forall;
+  container_class->child_type = gimp_overlay_box_child_type;
+}
+
+static void
+gimp_overlay_box_init (GimpOverlayBox *box)
+{
+  gtk_widget_set_has_window (GTK_WIDGET (box), TRUE);
+}
+
+static void
+gimp_overlay_box_set_property (GObject      *object,
+                               guint         property_id,
+                               const GValue *value,
+                               GParamSpec   *pspec)
+{
+  switch (property_id)
+    {
+    default:
+      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
+      break;
+    }
+}
+
+static void
+gimp_overlay_box_get_property (GObject    *object,
+                               guint       property_id,
+                               GValue     *value,
+                               GParamSpec *pspec)
+{
+  switch (property_id)
+    {
+    default:
+      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
+      break;
+    }
+}
+
+static void
+gimp_overlay_box_realize (GtkWidget *widget)
+{
+  GimpOverlayBox *box = GIMP_OVERLAY_BOX (widget);
+  GtkAllocation   allocation;
+  GdkWindowAttr   attributes;
+  gint            attributes_mask;
+  GList          *list;
+
+  gtk_widget_set_realized (widget, TRUE);
+
+  gtk_widget_get_allocation (widget, &allocation);
+
+  attributes.x           = allocation.x;
+  attributes.y           = allocation.y;
+  attributes.width       = allocation.width;
+  attributes.height      = allocation.height;
+  attributes.window_type = GDK_WINDOW_CHILD;
+  attributes.wclass      = GDK_INPUT_OUTPUT;
+  attributes.visual      = gtk_widget_get_visual (widget);
+  attributes.colormap    = gtk_widget_get_colormap (widget);
+  attributes.event_mask  = gtk_widget_get_events (widget);
+
+  attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL | GDK_WA_COLORMAP;
+
+  gtk_widget_set_window (widget,
+                         gdk_window_new (gtk_widget_get_parent_window (widget),
+                                         &attributes, attributes_mask));
+  gdk_window_set_user_data (gtk_widget_get_window (widget), widget);
+
+  g_signal_connect (gtk_widget_get_window (widget), "pick-embedded-child",
+                    G_CALLBACK (gimp_overlay_box_pick_embedded_child),
+                    widget);
+
+  gtk_widget_style_attach (widget);
+  gtk_style_set_background (gtk_widget_get_style (widget),
+                            gtk_widget_get_window (widget),
+                            GTK_STATE_NORMAL);
+
+  for (list = box->children; list; list = g_list_next (list))
+    gimp_overlay_child_realize (box, list->data);
+}
+
+static void
+gimp_overlay_box_unrealize (GtkWidget *widget)
+{
+  GimpOverlayBox *box = GIMP_OVERLAY_BOX (widget);
+  GList          *list;
+
+  for (list = box->children; list; list = g_list_next (list))
+    gimp_overlay_child_unrealize (box, list->data);
+
+  GTK_WIDGET_CLASS (parent_class)->unrealize (widget);
+}
+
+static void
+gimp_overlay_box_size_request (GtkWidget      *widget,
+                               GtkRequisition *requisition)
+{
+  GimpOverlayBox *box = GIMP_OVERLAY_BOX (widget);
+  GList          *list;
+  gint            border_width;
+
+  border_width = gtk_container_get_border_width (GTK_CONTAINER (widget));
+
+  requisition->width  = 1 + 2 * border_width;
+  requisition->height = 1 + 2 * border_width;
+
+  for (list = box->children; list; list = g_list_next (list))
+    gimp_overlay_child_size_request (box, list->data);
+}
+
+static void
+gimp_overlay_box_size_allocate (GtkWidget     *widget,
+                                GtkAllocation *allocation)
+{
+  GimpOverlayBox *box = GIMP_OVERLAY_BOX (widget);
+  GList          *list;
+
+  GTK_WIDGET_CLASS (parent_class)->size_allocate (widget, allocation);
+
+  for (list = box->children; list; list = g_list_next (list))
+    gimp_overlay_child_size_allocate (box, list->data);
+}
+
+static gboolean
+gimp_overlay_box_expose (GtkWidget      *widget,
+                         GdkEventExpose *event)
+{
+  if (gtk_widget_is_drawable (widget))
+    {
+      GimpOverlayBox *box = GIMP_OVERLAY_BOX (widget);
+      GList          *list;
+
+      for (list = box->children; list; list = g_list_next (list))
+        {
+          if (gimp_overlay_child_expose (box, list->data, event))
+            return FALSE;
+        }
+    }
+
+  return FALSE;
+}
+
+static gboolean
+gimp_overlay_box_damage (GtkWidget      *widget,
+                         GdkEventExpose *event)
+{
+  GimpOverlayBox *box = GIMP_OVERLAY_BOX (widget);
+  GList          *list;
+
+  for (list = box->children; list; list = g_list_next (list))
+    {
+      if (gimp_overlay_child_damage (box, list->data, event))
+        return FALSE;
+    }
+
+  return FALSE;
+}
+
+static void
+gimp_overlay_box_add (GtkContainer *container,
+                      GtkWidget    *widget)
+{
+  gimp_overlay_box_add_child (GIMP_OVERLAY_BOX (container), widget, 0.5, 0.5);
+}
+
+static void
+gimp_overlay_box_remove (GtkContainer *container,
+                         GtkWidget    *widget)
+{
+  GimpOverlayBox   *box   = GIMP_OVERLAY_BOX (container);
+  GimpOverlayChild *child = gimp_overlay_child_find (box, widget);
+
+  if (child)
+    {
+      if (gtk_widget_get_visible (widget))
+        gimp_overlay_child_invalidate (box, child);
+
+      box->children = g_list_remove (box->children, child);
+
+      gimp_overlay_child_free (box, child);
+    }
+}
+
+static void
+gimp_overlay_box_forall (GtkContainer *container,
+                         gboolean      include_internals,
+                         GtkCallback   callback,
+                         gpointer      callback_data)
+{
+  GimpOverlayBox *box = GIMP_OVERLAY_BOX (container);
+  GList          *list;
+
+  list = box->children;
+  while (list)
+    {
+      GimpOverlayChild *child = list->data;
+
+      list = list->next;
+
+      (* callback) (child->widget, callback_data);
+    }
+}
+
+static GType
+gimp_overlay_box_child_type (GtkContainer *container)
+{
+  return GTK_TYPE_WIDGET;
+}
+
+static GdkWindow *
+gimp_overlay_box_pick_embedded_child (GdkWindow      *parent,
+                                      gdouble         parent_x,
+                                      gdouble         parent_y,
+                                      GimpOverlayBox *box)
+{
+  GList *list;
+
+  for (list = box->children; list; list = g_list_next (list))
+    {
+      GimpOverlayChild *child = list->data;
+
+      if (gimp_overlay_child_pick (box, child, parent_x, parent_y))
+        return child->window;
+    }
+
+  return NULL;
+}
+
+
+/*  public functions  */
+
+/**
+ * gimp_overlay_box_new:
+ *
+ * Creates a new #GimpOverlayBox widget.
+ *
+ * Return value: a new #GimpOverlayBox widget
+ **/
+GtkWidget *
+gimp_overlay_box_new (void)
+{
+  return g_object_new (GIMP_TYPE_OVERLAY_BOX, NULL);
+}
+
+void
+gimp_overlay_box_add_child (GimpOverlayBox *box,
+                            GtkWidget      *widget,
+                            gdouble         xalign,
+                            gdouble         yalign)
+{
+  GimpOverlayChild *child;
+
+  g_return_if_fail (GIMP_IS_OVERLAY_BOX (box));
+  g_return_if_fail (GTK_IS_WIDGET (widget));
+
+  child = gimp_overlay_child_new (box, widget, xalign, yalign, 0.0, 0.85);
+
+  box->children = g_list_append (box->children, child);
+}
+
+void
+gimp_overlay_box_set_child_alignment (GimpOverlayBox *box,
+                                      GtkWidget      *widget,
+                                      gdouble         xalign,
+                                      gdouble         yalign)
+{
+  GimpOverlayChild *child = gimp_overlay_child_find (box, widget);
+
+  if (child)
+    {
+      xalign = CLAMP (xalign, 0.0, 1.0);
+      yalign = CLAMP (yalign, 0.0, 1.0);
+
+      if (child->has_position     ||
+          child->xalign != xalign ||
+          child->yalign != yalign)
+        {
+          gimp_overlay_child_invalidate (box, child);
+
+          child->has_position = FALSE;
+          child->xalign       = xalign;
+          child->yalign       = yalign;
+
+          gtk_widget_queue_resize (widget);
+        }
+    }
+}
+
+void
+gimp_overlay_box_set_child_position (GimpOverlayBox *box,
+                                     GtkWidget      *widget,
+                                     gdouble         x,
+                                     gdouble         y)
+{
+  GimpOverlayChild *child = gimp_overlay_child_find (box, widget);
+
+  if (child)
+    {
+      if (! child->has_position ||
+          child->x != x         ||
+          child->y != y)
+        {
+          gimp_overlay_child_invalidate (box, child);
+
+          child->has_position = TRUE;
+          child->x            = x;
+          child->y            = y;
+
+          gtk_widget_queue_resize (widget);
+        }
+    }
+}
+
+void
+gimp_overlay_box_set_child_angle (GimpOverlayBox *box,
+                                  GtkWidget      *widget,
+                                  gdouble         angle)
+{
+  GimpOverlayChild *child = gimp_overlay_child_find (box, widget);
+
+  if (child)
+    {
+      if (child->angle != angle)
+        {
+          gimp_overlay_child_invalidate (box, child);
+
+          child->angle = angle;
+
+          gtk_widget_queue_draw (widget);
+        }
+    }
+}
+
+void
+gimp_overlay_box_set_child_opacity (GimpOverlayBox *box,
+                                    GtkWidget      *widget,
+                                    gdouble         opacity)
+{
+  GimpOverlayChild *child = gimp_overlay_child_find (box, widget);
+
+  if (child)
+    {
+      opacity = CLAMP (opacity, 0.0, 1.0);
+
+      if (child->opacity != opacity)
+        {
+          child->opacity = opacity;
+
+          gtk_widget_queue_draw (widget);
+        }
+    }
+}
+
+/**
+ * gimp_overlay_box_scroll:
+ * @box: the #GimpOverlayBox widget to scroll.
+ * @offset_x: the x scroll amount.
+ * @offset_y: the y scroll amount.
+ *
+ * Scrolls the box using gdk_window_scroll() and makes sure the result
+ * is displayed immediately by calling gdk_window_process_updates().
+ **/
+void
+gimp_overlay_box_scroll (GimpOverlayBox *box,
+                         gint            offset_x,
+                         gint            offset_y)
+{
+  GtkWidget *widget;
+  GdkWindow *window;
+  GList     *list;
+
+  g_return_if_fail (GIMP_IS_OVERLAY_BOX (box));
+
+  widget = GTK_WIDGET (box);
+
+  /* bug 761118 */
+  if (! gtk_widget_get_realized (widget))
+    return;
+
+  window = gtk_widget_get_window (widget);
+
+  /*  Undraw all overlays  */
+  for (list = box->children; list; list = g_list_next (list))
+    {
+      GimpOverlayChild *child = list->data;
+
+      gimp_overlay_child_invalidate (box, child);
+    }
+
+  gdk_window_scroll (window, offset_x, offset_y);
+
+  /*  Re-draw all overlays  */
+  for (list = box->children; list; list = g_list_next (list))
+    {
+      GimpOverlayChild *child = list->data;
+
+      gimp_overlay_child_invalidate (box, child);
+    }
+
+  /*  Make sure expose events are processed before scrolling again  */
+  gdk_window_process_updates (window, FALSE);
+}