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-rw-r--r--app/dialogs/image-scale-dialog.c291
1 files changed, 291 insertions, 0 deletions
diff --git a/app/dialogs/image-scale-dialog.c b/app/dialogs/image-scale-dialog.c
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+/* GIMP - The GNU Image Manipulation Program
+ * Copyright (C) 1995 Spencer Kimball and Peter Mattis
+ *
+ * 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 <string.h>
+
+#include <gegl.h>
+#include <gtk/gtk.h>
+
+#include "libgimpbase/gimpbase.h"
+#include "libgimpwidgets/gimpwidgets.h"
+
+#include "dialogs-types.h"
+
+#include "config/gimpguiconfig.h"
+
+#include "core/gimp.h"
+#include "core/gimpcontext.h"
+#include "core/gimpimage.h"
+#include "core/gimpimage-scale.h"
+
+#include "widgets/gimphelp-ids.h"
+#include "widgets/gimpmessagebox.h"
+#include "widgets/gimpmessagedialog.h"
+
+#include "scale-dialog.h"
+
+#include "image-scale-dialog.h"
+
+#include "gimp-intl.h"
+
+
+typedef struct
+{
+ GtkWidget *dialog;
+
+ GimpImage *image;
+
+ gint width;
+ gint height;
+ GimpUnit unit;
+ GimpInterpolationType interpolation;
+ gdouble xresolution;
+ gdouble yresolution;
+ GimpUnit resolution_unit;
+
+ GimpScaleCallback callback;
+ gpointer user_data;
+} ImageScaleDialog;
+
+
+/* local function prototypes */
+
+static void image_scale_dialog_free (ImageScaleDialog *private);
+static void image_scale_callback (GtkWidget *widget,
+ GimpViewable *viewable,
+ gint width,
+ gint height,
+ GimpUnit unit,
+ GimpInterpolationType interpolation,
+ gdouble xresolution,
+ gdouble yresolution,
+ GimpUnit resolution_unit,
+ gpointer data);
+
+static GtkWidget * image_scale_confirm_dialog (ImageScaleDialog *private);
+static void image_scale_confirm_large (ImageScaleDialog *private,
+ gint64 new_memsize,
+ gint64 max_memsize);
+static void image_scale_confirm_small (ImageScaleDialog *private);
+static void image_scale_confirm_response (GtkWidget *widget,
+ gint response_id,
+ ImageScaleDialog *private);
+
+
+/* public functions */
+
+GtkWidget *
+image_scale_dialog_new (GimpImage *image,
+ GimpContext *context,
+ GtkWidget *parent,
+ GimpUnit unit,
+ GimpInterpolationType interpolation,
+ GimpScaleCallback callback,
+ gpointer user_data)
+{
+ ImageScaleDialog *private;
+
+ g_return_val_if_fail (GIMP_IS_IMAGE (image), NULL);
+ g_return_val_if_fail (GIMP_IS_CONTEXT (context), NULL);
+ g_return_val_if_fail (callback != NULL, NULL);
+
+ private = g_slice_new0 (ImageScaleDialog);
+
+ private->image = image;
+ private->callback = callback;
+ private->user_data = user_data;
+
+ private->dialog = scale_dialog_new (GIMP_VIEWABLE (image), context,
+ C_("dialog-title", "Scale Image"),
+ "gimp-image-scale",
+ parent,
+ gimp_standard_help_func,
+ GIMP_HELP_IMAGE_SCALE,
+ unit,
+ interpolation,
+ image_scale_callback,
+ private);
+
+ g_object_weak_ref (G_OBJECT (private->dialog),
+ (GWeakNotify) image_scale_dialog_free, private);
+
+ return private->dialog;
+}
+
+
+/* private functions */
+
+static void
+image_scale_dialog_free (ImageScaleDialog *private)
+{
+ g_slice_free (ImageScaleDialog, private);
+}
+
+static void
+image_scale_callback (GtkWidget *widget,
+ GimpViewable *viewable,
+ gint width,
+ gint height,
+ GimpUnit unit,
+ GimpInterpolationType interpolation,
+ gdouble xresolution,
+ gdouble yresolution,
+ GimpUnit resolution_unit,
+ gpointer data)
+{
+ ImageScaleDialog *private = data;
+ GimpImage *image = GIMP_IMAGE (viewable);
+ GimpImageScaleCheckType scale_check;
+ gint64 max_memsize;
+ gint64 new_memsize;
+
+ private->width = width;
+ private->height = height;
+ private->unit = unit;
+ private->interpolation = interpolation;
+ private->xresolution = xresolution;
+ private->yresolution = yresolution;
+ private->resolution_unit = resolution_unit;
+
+ gtk_widget_set_sensitive (widget, FALSE);
+
+ max_memsize = GIMP_GUI_CONFIG (image->gimp->config)->max_new_image_size;
+
+ scale_check = gimp_image_scale_check (image,
+ width, height, max_memsize,
+ &new_memsize);
+ switch (scale_check)
+ {
+ case GIMP_IMAGE_SCALE_TOO_BIG:
+ image_scale_confirm_large (private, new_memsize, max_memsize);
+ break;
+
+ case GIMP_IMAGE_SCALE_TOO_SMALL:
+ image_scale_confirm_small (private);
+ break;
+
+ case GIMP_IMAGE_SCALE_OK:
+ private->callback (private->dialog,
+ GIMP_VIEWABLE (private->image),
+ private->width,
+ private->height,
+ private->unit,
+ private->interpolation,
+ private->xresolution,
+ private->yresolution,
+ private->resolution_unit,
+ private->user_data);
+ break;
+ }
+}
+
+static GtkWidget *
+image_scale_confirm_dialog (ImageScaleDialog *private)
+{
+ GtkWidget *widget;
+
+ widget = gimp_message_dialog_new (_("Confirm Scaling"),
+ GIMP_ICON_DIALOG_WARNING,
+ private->dialog,
+ GTK_DIALOG_DESTROY_WITH_PARENT,
+ gimp_standard_help_func,
+ GIMP_HELP_IMAGE_SCALE_WARNING,
+
+ _("_Cancel"), GTK_RESPONSE_CANCEL,
+ _("_Scale"), GTK_RESPONSE_OK,
+
+ NULL);
+
+ gtk_dialog_set_alternative_button_order (GTK_DIALOG (widget),
+ GTK_RESPONSE_OK,
+ GTK_RESPONSE_CANCEL,
+ -1);
+
+ g_signal_connect (widget, "response",
+ G_CALLBACK (image_scale_confirm_response),
+ private);
+
+ return widget;
+}
+
+static void
+image_scale_confirm_large (ImageScaleDialog *private,
+ gint64 new_memsize,
+ gint64 max_memsize)
+{
+ GtkWidget *widget = image_scale_confirm_dialog (private);
+ gchar *size;
+
+ size = g_format_size (new_memsize);
+ gimp_message_box_set_primary_text (GIMP_MESSAGE_DIALOG (widget)->box,
+ _("You are trying to create an image "
+ "with a size of %s."), size);
+ g_free (size);
+
+ size = g_format_size (max_memsize);
+ gimp_message_box_set_text (GIMP_MESSAGE_DIALOG (widget)->box,
+ _("Scaling the image to the chosen size will "
+ "make it use more memory than what is "
+ "configured as \"Maximum Image Size\" in the "
+ "Preferences dialog (currently %s)."), size);
+ g_free (size);
+
+ gtk_widget_show (widget);
+}
+
+static void
+image_scale_confirm_small (ImageScaleDialog *private)
+{
+ GtkWidget *widget = image_scale_confirm_dialog (private);
+
+ gimp_message_box_set_primary_text (GIMP_MESSAGE_DIALOG (widget)->box,
+ _("Scaling the image to the chosen size "
+ "will shrink some layers completely "
+ "away."));
+ gimp_message_box_set_text (GIMP_MESSAGE_DIALOG (widget)->box,
+ _("Is this what you want to do?"));
+
+ gtk_widget_show (widget);
+}
+
+static void
+image_scale_confirm_response (GtkWidget *widget,
+ gint response_id,
+ ImageScaleDialog *private)
+{
+ gtk_widget_destroy (widget);
+
+ if (response_id == GTK_RESPONSE_OK)
+ {
+ private->callback (private->dialog,
+ GIMP_VIEWABLE (private->image),
+ private->width,
+ private->height,
+ private->unit,
+ private->interpolation,
+ private->xresolution,
+ private->yresolution,
+ private->resolution_unit,
+ private->user_data);
+ }
+ else
+ {
+ gtk_widget_set_sensitive (private->dialog, TRUE);
+ }
+}
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