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-rw-r--r--app/widgets/gimpprogressbox.c245
1 files changed, 245 insertions, 0 deletions
diff --git a/app/widgets/gimpprogressbox.c b/app/widgets/gimpprogressbox.c
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+++ b/app/widgets/gimpprogressbox.c
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+/* GIMP - The GNU Image Manipulation Program
+ * Copyright (C) 1995 Spencer Kimball and Peter Mattis
+ *
+ * gimpprogressbox.c
+ * Copyright (C) 2004 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 <gegl.h>
+#include <gtk/gtk.h>
+
+#include "libgimpmath/gimpmath.h"
+#include "libgimpwidgets/gimpwidgets.h"
+
+#include "widgets-types.h"
+
+#include "core/gimpprogress.h"
+
+#include "gimpprogressbox.h"
+#include "gimpwidgets-utils.h"
+
+#include "gimp-intl.h"
+
+
+static void gimp_progress_box_progress_iface_init (GimpProgressInterface *iface);
+
+static void gimp_progress_box_dispose (GObject *object);
+
+static GimpProgress *
+ gimp_progress_box_progress_start (GimpProgress *progress,
+ gboolean cancellable,
+ const gchar *message);
+static void gimp_progress_box_progress_end (GimpProgress *progress);
+static gboolean gimp_progress_box_progress_is_active (GimpProgress *progress);
+static void gimp_progress_box_progress_set_text (GimpProgress *progress,
+ const gchar *message);
+static void gimp_progress_box_progress_set_value (GimpProgress *progress,
+ gdouble percentage);
+static gdouble gimp_progress_box_progress_get_value (GimpProgress *progress);
+static void gimp_progress_box_progress_pulse (GimpProgress *progress);
+
+
+G_DEFINE_TYPE_WITH_CODE (GimpProgressBox, gimp_progress_box, GTK_TYPE_BOX,
+ G_IMPLEMENT_INTERFACE (GIMP_TYPE_PROGRESS,
+ gimp_progress_box_progress_iface_init))
+
+#define parent_class gimp_progress_box_parent_class
+
+
+static void
+gimp_progress_box_class_init (GimpProgressBoxClass *klass)
+{
+ GObjectClass *object_class = G_OBJECT_CLASS (klass);
+
+ object_class->dispose = gimp_progress_box_dispose;
+}
+
+static void
+gimp_progress_box_init (GimpProgressBox *box)
+{
+ gtk_orientable_set_orientation (GTK_ORIENTABLE (box),
+ GTK_ORIENTATION_VERTICAL);
+
+ gtk_box_set_spacing (GTK_BOX (box), 6);
+
+ box->progress = gtk_progress_bar_new ();
+ gtk_widget_set_size_request (box->progress, 250, 20);
+ gtk_box_pack_start (GTK_BOX (box), box->progress, FALSE, FALSE, 0);
+ gtk_widget_show (box->progress);
+
+ box->label = gtk_label_new ("");
+ gtk_label_set_ellipsize (GTK_LABEL (box->label), PANGO_ELLIPSIZE_MIDDLE);
+ gtk_label_set_xalign (GTK_LABEL (box->label), 0.0);
+ gimp_label_set_attributes (GTK_LABEL (box->label),
+ PANGO_ATTR_STYLE, PANGO_STYLE_ITALIC,
+ -1);
+ gtk_box_pack_start (GTK_BOX (box), box->label, FALSE, FALSE, 0);
+ gtk_widget_show (box->label);
+}
+
+static void
+gimp_progress_box_progress_iface_init (GimpProgressInterface *iface)
+{
+ iface->start = gimp_progress_box_progress_start;
+ iface->end = gimp_progress_box_progress_end;
+ iface->is_active = gimp_progress_box_progress_is_active;
+ iface->set_text = gimp_progress_box_progress_set_text;
+ iface->set_value = gimp_progress_box_progress_set_value;
+ iface->get_value = gimp_progress_box_progress_get_value;
+ iface->pulse = gimp_progress_box_progress_pulse;
+}
+
+static void
+gimp_progress_box_dispose (GObject *object)
+{
+ GimpProgressBox *box = GIMP_PROGRESS_BOX (object);
+
+ G_OBJECT_CLASS (parent_class)->dispose (object);
+
+ box->progress = NULL;
+}
+
+static GimpProgress *
+gimp_progress_box_progress_start (GimpProgress *progress,
+ gboolean cancellable,
+ const gchar *message)
+{
+ GimpProgressBox *box = GIMP_PROGRESS_BOX (progress);
+
+ if (! box->progress)
+ return NULL;
+
+ if (! box->active)
+ {
+ GtkProgressBar *bar = GTK_PROGRESS_BAR (box->progress);
+
+ gtk_label_set_text (GTK_LABEL (box->label), message);
+ gtk_progress_bar_set_fraction (bar, 0.0);
+
+ box->active = TRUE;
+ box->cancellable = cancellable;
+ box->value = 0.0;
+
+ if (gtk_widget_is_drawable (box->progress))
+ gdk_window_process_updates (gtk_widget_get_window (box->progress),
+ TRUE);
+
+ return progress;
+ }
+
+ return NULL;
+}
+
+static void
+gimp_progress_box_progress_end (GimpProgress *progress)
+{
+ if (gimp_progress_box_progress_is_active (progress))
+ {
+ GimpProgressBox *box = GIMP_PROGRESS_BOX (progress);
+ GtkProgressBar *bar = GTK_PROGRESS_BAR (box->progress);
+
+ gtk_label_set_text (GTK_LABEL (box->label), "");
+ gtk_progress_bar_set_fraction (bar, 0.0);
+
+ box->active = FALSE;
+ box->cancellable = FALSE;
+ box->value = 0.0;
+ }
+}
+
+static gboolean
+gimp_progress_box_progress_is_active (GimpProgress *progress)
+{
+ GimpProgressBox *box = GIMP_PROGRESS_BOX (progress);
+
+ return (box->progress && box->active);
+}
+
+static void
+gimp_progress_box_progress_set_text (GimpProgress *progress,
+ const gchar *message)
+{
+ if (gimp_progress_box_progress_is_active (progress))
+ {
+ GimpProgressBox *box = GIMP_PROGRESS_BOX (progress);
+
+ gtk_label_set_text (GTK_LABEL (box->label), message);
+
+ if (gtk_widget_is_drawable (box->progress))
+ gdk_window_process_updates (gtk_widget_get_window (box->progress),
+ TRUE);
+ }
+}
+
+static void
+gimp_progress_box_progress_set_value (GimpProgress *progress,
+ gdouble percentage)
+{
+ if (gimp_progress_box_progress_is_active (progress))
+ {
+ GimpProgressBox *box = GIMP_PROGRESS_BOX (progress);
+ GtkProgressBar *bar = GTK_PROGRESS_BAR (box->progress);
+ GtkAllocation allocation;
+
+ gtk_widget_get_allocation (GTK_WIDGET (bar), &allocation);
+
+ box->value = percentage;
+
+ /* only update the progress bar if this causes a visible change */
+ if (fabs (allocation.width *
+ (percentage - gtk_progress_bar_get_fraction (bar))) > 1.0)
+ {
+ gtk_progress_bar_set_fraction (bar, box->value);
+
+ gimp_widget_flush_expose (box->progress);
+ }
+ }
+}
+
+static gdouble
+gimp_progress_box_progress_get_value (GimpProgress *progress)
+{
+ if (gimp_progress_box_progress_is_active (progress))
+ {
+ return GIMP_PROGRESS_BOX (progress)->value;
+ }
+
+ return 0.0;
+}
+
+static void
+gimp_progress_box_progress_pulse (GimpProgress *progress)
+{
+ if (gimp_progress_box_progress_is_active (progress))
+ {
+ GimpProgressBox *box = GIMP_PROGRESS_BOX (progress);
+ GtkProgressBar *bar = GTK_PROGRESS_BAR (box->progress);
+
+ gtk_progress_bar_pulse (bar);
+
+ if (gtk_widget_is_drawable (box->progress))
+ gdk_window_process_updates (gtk_widget_get_window (box->progress),
+ TRUE);
+ }
+}
+
+GtkWidget *
+gimp_progress_box_new (void)
+{
+ return g_object_new (GIMP_TYPE_PROGRESS_BOX, NULL);
+}
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