mirror of https://github.com/GNOME/gimp.git
147 lines
4.4 KiB
C
147 lines
4.4 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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#include "config.h"
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#include <string.h>
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#include <gegl.h>
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#include <gtk/gtk.h>
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#include "display-types.h"
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#include "core/gimp.h"
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#include "core/gimpimage.h"
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#include "widgets/gimpwidgets-utils.h"
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#include "gimpdisplay.h"
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#include "gimpdisplayshell.h"
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#include "gimpdisplayshell-icon.h"
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#define GIMP_DISPLAY_UPDATE_ICON_TIMEOUT 1000
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static gboolean gimp_display_shell_icon_update_idle (gpointer data);
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/* public functions */
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void
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gimp_display_shell_icon_update (GimpDisplayShell *shell)
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{
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g_return_if_fail (GIMP_IS_DISPLAY_SHELL (shell));
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gimp_display_shell_icon_update_stop (shell);
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if (gimp_display_get_image (shell->display))
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shell->icon_idle_id = g_timeout_add_full (G_PRIORITY_LOW,
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GIMP_DISPLAY_UPDATE_ICON_TIMEOUT,
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gimp_display_shell_icon_update_idle,
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shell,
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NULL);
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else
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gimp_display_shell_icon_update_idle (shell);
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}
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void
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gimp_display_shell_icon_update_stop (GimpDisplayShell *shell)
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{
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g_return_if_fail (GIMP_IS_DISPLAY_SHELL (shell));
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if (shell->icon_idle_id)
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{
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g_source_remove (shell->icon_idle_id);
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shell->icon_idle_id = 0;
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}
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}
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/* private functions */
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static gboolean
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gimp_display_shell_icon_update_idle (gpointer data)
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{
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GimpDisplayShell *shell = GIMP_DISPLAY_SHELL (data);
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GimpImage *image = gimp_display_get_image (shell->display);
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GdkPixbuf *icon = NULL;
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shell->icon_idle_id = 0;
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if (image)
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{
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Gimp *gimp = gimp_display_get_gimp (shell->display);
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GdkPixbuf *pixbuf;
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gint width;
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gint height;
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gint scale_factor;
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gdouble factor = ((gdouble) gimp_image_get_height (image) /
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(gdouble) gimp_image_get_width (image));
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if (factor >= 1)
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{
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height = MAX (shell->icon_size, 1);
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width = MAX (((gdouble) shell->icon_size) / factor, 1);
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}
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else
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{
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height = MAX (((gdouble) shell->icon_size) * factor, 1);
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width = MAX (shell->icon_size, 1);
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}
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scale_factor = gtk_widget_get_scale_factor (GTK_WIDGET (shell));
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width *= scale_factor;
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height *= scale_factor;
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pixbuf = gimp_viewable_get_pixbuf (GIMP_VIEWABLE (image),
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gimp_get_user_context (gimp),
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width, height);
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icon = gdk_pixbuf_new (GDK_COLORSPACE_RGB, TRUE, 8,
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shell->icon_size * scale_factor,
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shell->icon_size * scale_factor);
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memset (gdk_pixbuf_get_pixels (icon), 0,
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gdk_pixbuf_get_height (icon) *
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gdk_pixbuf_get_rowstride (icon));
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gdk_pixbuf_copy_area (pixbuf, 0, 0, width, height,
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icon,
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0, shell->icon_size * scale_factor - height);
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pixbuf = gimp_widget_load_icon (GTK_WIDGET (shell), "gimp-wilber-outline",
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shell->icon_size_small);
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width = gdk_pixbuf_get_width (pixbuf);
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height = gdk_pixbuf_get_height (pixbuf);
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gdk_pixbuf_composite (pixbuf, icon,
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shell->icon_size * scale_factor - width,
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0, width, height,
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shell->icon_size * scale_factor - width,
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0.0, 1.0, 1.0,
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GDK_INTERP_NEAREST, 255);
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g_object_unref (pixbuf);
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}
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g_object_set (shell, "icon", icon, NULL);
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if (icon)
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g_object_unref (icon);
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return FALSE;
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}
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