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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 18:30:19 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 18:30:19 +0000
commit5c1676dfe6d2f3c837a5e074117b45613fd29a72 (patch)
treecbffb45144febf451e54061db2b21395faf94bfe /app/widgets/gimpoverlaybox.c
parentInitial commit. (diff)
downloadgimp-5c1676dfe6d2f3c837a5e074117b45613fd29a72.tar.xz
gimp-5c1676dfe6d2f3c837a5e074117b45613fd29a72.zip
Adding upstream version 2.10.34.upstream/2.10.34upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'app/widgets/gimpoverlaybox.c')
-rw-r--r--app/widgets/gimpoverlaybox.c497
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
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+/* 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);
+}