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-rw-r--r--app/dialogs/resolution-calibrate-dialog.c204
1 files changed, 204 insertions, 0 deletions
diff --git a/app/dialogs/resolution-calibrate-dialog.c b/app/dialogs/resolution-calibrate-dialog.c
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+++ b/app/dialogs/resolution-calibrate-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 <gegl.h>
+#include <gtk/gtk.h>
+
+#include "libgimpmath/gimpmath.h"
+#include "libgimpbase/gimpbase.h"
+#include "libgimpwidgets/gimpwidgets.h"
+
+#include "resolution-calibrate-dialog.h"
+
+#include "gimp-intl.h"
+
+
+static GtkWidget *calibrate_entry = NULL;
+static gdouble calibrate_xres = 1.0;
+static gdouble calibrate_yres = 1.0;
+static gint ruler_width = 1;
+static gint ruler_height = 1;
+
+
+/**
+ * resolution_calibrate_dialog:
+ * @resolution_entry: a #GimpSizeEntry to connect the dialog to
+ * @icon_name: an optional icon-name for the upper left corner
+ *
+ * Displays a dialog that allows the user to interactively determine
+ * her monitor resolution. This dialog runs it's own GTK main loop and
+ * is connected to a #GimpSizeEntry handling the resolution to be set.
+ **/
+void
+resolution_calibrate_dialog (GtkWidget *resolution_entry,
+ const gchar *icon_name)
+{
+ GtkWidget *dialog;
+ GtkWidget *table;
+ GtkWidget *vbox;
+ GtkWidget *hbox;
+ GtkWidget *ruler;
+ GtkWidget *label;
+ GdkScreen *screen;
+ GdkRectangle rect;
+ gint monitor;
+
+ g_return_if_fail (GIMP_IS_SIZE_ENTRY (resolution_entry));
+ g_return_if_fail (gtk_widget_get_realized (resolution_entry));
+
+ /* this dialog can only exist once */
+ if (calibrate_entry)
+ return;
+
+ dialog = gimp_dialog_new (_("Calibrate Monitor Resolution"),
+ "gimp-resolution-calibration",
+ gtk_widget_get_toplevel (resolution_entry),
+ GTK_DIALOG_DESTROY_WITH_PARENT,
+ NULL, NULL,
+
+ _("_Cancel"), GTK_RESPONSE_CANCEL,
+ _("_OK"), GTK_RESPONSE_OK,
+
+ NULL);
+
+ gtk_dialog_set_alternative_button_order (GTK_DIALOG (dialog),
+ GTK_RESPONSE_OK,
+ GTK_RESPONSE_CANCEL,
+ -1);
+
+ screen = gtk_widget_get_screen (dialog);
+ monitor = gdk_screen_get_monitor_at_window (screen,
+ gtk_widget_get_window (resolution_entry));
+ gdk_screen_get_monitor_workarea (screen, monitor, &rect);
+
+ ruler_width = rect.width - 300 - (rect.width % 100);
+ ruler_height = rect.height - 300 - (rect.height % 100);
+
+ table = gtk_table_new (4, 4, FALSE);
+ gtk_container_set_border_width (GTK_CONTAINER (table), 12);
+ gtk_box_pack_start (GTK_BOX (gtk_dialog_get_content_area (GTK_DIALOG (dialog))),
+ table, TRUE, TRUE, 0);
+ gtk_widget_show (table);
+
+ if (icon_name)
+ {
+ GtkWidget *image = gtk_image_new_from_icon_name (icon_name,
+ GTK_ICON_SIZE_DIALOG);
+
+ gtk_table_attach (GTK_TABLE (table), image, 0, 1, 0, 1,
+ GTK_SHRINK, GTK_SHRINK, 4, 4);
+ gtk_widget_show (image);
+ }
+
+ ruler = gimp_ruler_new (GTK_ORIENTATION_HORIZONTAL);
+ gtk_widget_set_size_request (ruler, ruler_width, 32);
+ gimp_ruler_set_range (GIMP_RULER (ruler), 0, ruler_width, ruler_width);
+ gtk_table_attach (GTK_TABLE (table), ruler, 1, 3, 0, 1,
+ GTK_SHRINK, GTK_SHRINK, 0, 0);
+ gtk_widget_show (ruler);
+
+ ruler = gimp_ruler_new (GTK_ORIENTATION_VERTICAL);
+ gtk_widget_set_size_request (ruler, 32, ruler_height);
+ gimp_ruler_set_range (GIMP_RULER (ruler), 0, ruler_height, ruler_height);
+ gtk_table_attach (GTK_TABLE (table), ruler, 0, 1, 1, 3,
+ GTK_SHRINK, GTK_SHRINK, 0, 0);
+ gtk_widget_show (ruler);
+
+ vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 12);
+ gtk_table_attach (GTK_TABLE (table), vbox, 1, 2, 1, 2,
+ GTK_SHRINK, GTK_SHRINK, 0, 0);
+ gtk_widget_show (vbox);
+
+ label =
+ gtk_label_new (_("Measure the rulers and enter their lengths:"));
+ gtk_label_set_justify (GTK_LABEL (label), GTK_JUSTIFY_LEFT);
+ gtk_label_set_xalign (GTK_LABEL (label), 0.0);
+ gimp_label_set_attributes (GTK_LABEL (label),
+ PANGO_ATTR_SCALE, PANGO_SCALE_LARGE,
+ PANGO_ATTR_WEIGHT, PANGO_WEIGHT_BOLD,
+ -1);
+ gtk_box_pack_start (GTK_BOX (vbox), label, FALSE, FALSE, 0);
+ gtk_widget_show (label);
+
+ hbox = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 0);
+ gtk_box_pack_start (GTK_BOX (vbox), hbox, FALSE, FALSE, 0);
+ gtk_widget_show (hbox);
+
+ calibrate_xres =
+ gimp_size_entry_get_refval (GIMP_SIZE_ENTRY (resolution_entry), 0);
+ calibrate_yres =
+ gimp_size_entry_get_refval (GIMP_SIZE_ENTRY (resolution_entry), 1);
+
+ calibrate_entry =
+ gimp_coordinates_new (GIMP_UNIT_INCH, "%p",
+ FALSE, FALSE, 10,
+ GIMP_SIZE_ENTRY_UPDATE_SIZE,
+ FALSE,
+ FALSE,
+ _("_Horizontal:"),
+ ruler_width,
+ calibrate_xres,
+ 1, GIMP_MAX_IMAGE_SIZE,
+ 0, 0,
+ _("_Vertical:"),
+ ruler_height,
+ calibrate_yres,
+ 1, GIMP_MAX_IMAGE_SIZE,
+ 0, 0);
+ gtk_widget_hide (GTK_WIDGET (GIMP_COORDINATES_CHAINBUTTON (calibrate_entry)));
+ g_signal_connect (dialog, "destroy",
+ G_CALLBACK (gtk_widget_destroyed),
+ &calibrate_entry);
+
+ gtk_box_pack_end (GTK_BOX (hbox), calibrate_entry, FALSE, FALSE, 0);
+ gtk_widget_show (calibrate_entry);
+
+ gtk_widget_show (dialog);
+
+ switch (gimp_dialog_run (GIMP_DIALOG (dialog)))
+ {
+ case GTK_RESPONSE_OK:
+ {
+ GtkWidget *chain_button;
+ gdouble x, y;
+
+ x = gimp_size_entry_get_refval (GIMP_SIZE_ENTRY (calibrate_entry), 0);
+ y = gimp_size_entry_get_refval (GIMP_SIZE_ENTRY (calibrate_entry), 1);
+
+ calibrate_xres = (gdouble) ruler_width * calibrate_xres / x;
+ calibrate_yres = (gdouble) ruler_height * calibrate_yres / y;
+
+ chain_button = GIMP_COORDINATES_CHAINBUTTON (resolution_entry);
+
+ if (ABS (x - y) > GIMP_MIN_RESOLUTION)
+ gimp_chain_button_set_active (GIMP_CHAIN_BUTTON (chain_button),
+ FALSE);
+
+ gimp_size_entry_set_refval (GIMP_SIZE_ENTRY (resolution_entry),
+ 0, calibrate_xres);
+ gimp_size_entry_set_refval (GIMP_SIZE_ENTRY (resolution_entry),
+ 1, calibrate_yres);
+ }
+
+ default:
+ break;
+ }
+
+ gtk_widget_destroy (dialog);
+}