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471efee769
In GimpHistogramEditor, when the drawable preview is frozen, don't duplicate the main histogram as the bg histogram if calculation is still ongoing, since this will block until histogram calculation is complete. In particular, this creates a noticeable stall when beginning a paint stroke while the histogram is being calculated. Instead, defer the creation of the bg histogram to the completion of the calculation of the main histogram.
68 lines
2.3 KiB
C
68 lines
2.3 KiB
C
/* GIMP - The GNU Image Manipulation Program
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* Copyright (C) 1995 Spencer Kimball and Peter Mattis
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <https://www.gnu.org/licenses/>.
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*/
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#ifndef __GIMP_HISTOGRAM_EDITOR_H__
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#define __GIMP_HISTOGRAM_EDITOR_H__
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#include "gimpimageeditor.h"
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#define GIMP_TYPE_HISTOGRAM_EDITOR (gimp_histogram_editor_get_type ())
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#define GIMP_HISTOGRAM_EDITOR(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GIMP_TYPE_HISTOGRAM_EDITOR, GimpHistogramEditor))
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#define GIMP_HISTOGRAM_EDITOR_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GIMP_TYPE_HISTOGRAM_EDITOR, GimpHistogramEditorClass))
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#define GIMP_IS_HISTOGRAM_EDITOR(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GIMP_TYPE_HISTOGRAM_EDITOR))
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#define GIMP_IS_HISTOGRAM_EDITOR_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GIMP_TYPE_HISTOGRAM_EDITOR))
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#define GIMP_HISTOGRAM_EDITOR_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GIMP_TYPE_HISTOGRAM_EDITOR, GimpHistogramEditorClass))
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typedef struct _GimpHistogramEditorClass GimpHistogramEditorClass;
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struct _GimpHistogramEditor
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{
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GimpImageEditor parent_instance;
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GimpTRCType trc;
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GimpDrawable *drawable;
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GimpHistogram *histogram;
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GimpHistogram *bg_histogram;
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guint idle_id;
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gboolean recompute;
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GimpAsync *calculate_async;
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gboolean bg_pending;
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gboolean update_pending;
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GtkWidget *menu;
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GtkWidget *box;
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GtkWidget *labels[6];
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};
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struct _GimpHistogramEditorClass
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{
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GimpImageEditorClass parent_class;
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};
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GType gimp_histogram_editor_get_type (void) G_GNUC_CONST;
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GtkWidget * gimp_histogram_editor_new (void);
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#endif /* __GIMP_HISTOGRAM_EDITOR_H__ */
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