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- /* The GIMP -- an 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 2 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, write to the Free Software
- * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
- */
-
- #include "config.h"
-
- #include <gtk/gtk.h>
-
- #include "apptypes.h"
-
- #include "appenv.h"
- #include "gdisplay.h"
- #include "resize.h"
- #include "undo.h"
- #include "gimprc.h"
- #include "gimpui.h"
-
- #include "libgimp/gimpchainbutton.h"
- #include "libgimp/gimplimits.h"
- #include "libgimp/gimpmath.h"
- #include "libgimp/gimpsizeentry.h"
-
- #include "libgimp/gimpintl.h"
-
- #define EVENT_MASK GDK_EXPOSURE_MASK | GDK_BUTTON_PRESS_MASK
- #define DRAWING_AREA_SIZE 200
- #define TEXT_WIDTH 35
-
- typedef struct _ResizePrivate ResizePrivate;
-
- struct _ResizePrivate
- {
- /* size frame */
- GtkWidget *orig_width_label;
- GtkWidget *orig_height_label;
-
- GtkWidget *size_se;
-
- GtkObject *ratio_x_adj;
- GtkObject *ratio_y_adj;
- GtkWidget *constrain;
-
- /* offset frame */
- GtkWidget *offset_se;
- GtkWidget *drawing_area;
-
- /* resolution frame */
- GtkWidget *printsize_se;
- GtkWidget *resolution_se;
- GtkWidget *equal_res;
-
- gdouble ratio;
- gint old_width, old_height;
- gdouble old_res_x, old_res_y;
- gint area_width, area_height;
- gint start_x, start_y;
- gint orig_x, orig_y;
- };
-
- static void resize_draw (Resize *resize);
- static void unit_update (GtkWidget *widget,
- gpointer data);
- static gint resize_bound_off_x (Resize *resize,
- gint off_x);
- static gint resize_bound_off_y (Resize *resize,
- gint off_y);
- static void orig_labels_update (GtkWidget *widget,
- gpointer data);
- static void reset_callback (GtkWidget *widget,
- gpointer data);
- static void size_callback (GtkWidget *widget,
- gpointer data);
- static void ratio_callback (GtkWidget *widget,
- gpointer data);
- static void size_update (Resize *widget,
- gdouble width,
- gdouble height,
- gdouble ratio_x,
- gdouble ratio_y);
- static void offset_update (GtkWidget *widget,
- gpointer data);
- static gint resize_events (GtkWidget *widget,
- GdkEvent *event);
- static void printsize_update (GtkWidget *widget,
- gpointer data);
- static void resolution_callback (GtkWidget *widget,
- gpointer data);
- static void resolution_update (Resize *resize,
- gdouble res_x,
- gdouble res_y);
- static void resize_scale_warn_callback (GtkWidget *widget,
- gboolean do_scale,
- gpointer data);
-
-
- Resize *
- resize_widget_new (ResizeType type,
- ResizeTarget target,
- GtkObject *object,
- gchar *signal,
- gint width,
- gint height,
- gdouble resolution_x,
- gdouble resolution_y,
- GimpUnit unit,
- gboolean dot_for_dot,
- GtkSignalFunc ok_cb,
- GtkSignalFunc cancel_cb,
- gpointer user_data)
- {
- Resize *resize;
- ResizePrivate *private;
- GtkWidget *main_vbox;
- GtkWidget *vbox;
- GtkWidget *table;
- GtkWidget *table2;
- GtkWidget *label;
- GtkWidget *frame;
- GtkWidget *spinbutton;
- GtkWidget *abox;
- GtkObject *adjustment;
-
- abox = NULL;
- frame = NULL;
-
- private = g_new0 (ResizePrivate, 1);
- private->old_width = width;
- private->old_height = height;
- private->old_res_x = resolution_x;
- private->old_res_y = resolution_y;
-
- resize = g_new (Resize, 1);
- resize->type = type;
- resize->target = target;
- resize->private_part = private;
- resize->width = width;
- resize->height = height;
- resize->resolution_x = resolution_x;
- resize->resolution_y = resolution_y;
- resize->unit = unit;
- resize->ratio_x = 1.0;
- resize->ratio_y = 1.0;
- resize->offset_x = 0;
- resize->offset_y = 0;
-
- /* Get the image width and height variables, based on the gimage */
- if (width > height)
- private->ratio = (gdouble) DRAWING_AREA_SIZE / (gdouble) width;
- else
- private->ratio = (gdouble) DRAWING_AREA_SIZE / (gdouble) height;
-
- private->area_width = (gint) (private->ratio * width);
- private->area_height = (gint) (private->ratio * height);
-
- /* dialog box */
- {
- const gchar *wmclass = NULL;
- const gchar *window_title = NULL;
- gchar *help_page = NULL;
-
- switch (type)
- {
- case ScaleWidget:
- switch (target)
- {
- case ResizeLayer:
- wmclass = "scale_layer";
- window_title = _("Scale Layer");
- help_page = "layers/dialogs/scale_layer.html";
- frame = gtk_frame_new (_("Size"));
- break;
- case ResizeImage:
- wmclass = "scale_image";
- window_title = _("Scale Image");
- help_page = "dialogs/scale_image.html";
- frame = gtk_frame_new (_("Pixel Dimensions"));
- break;
- }
- break;
-
- case ResizeWidget:
- switch (target)
- {
- case ResizeLayer:
- wmclass = "resize_layer";
- window_title = _("Set Layer Boundary Size");
- help_page = "layers/dialogs/layer_boundary_size.html";
- break;
- case ResizeImage:
- wmclass = "resize_image";
- window_title = _("Set Canvas Size");
- help_page = "dialogs/set_canvas_size.html";
- break;
- }
- frame = gtk_frame_new (_("Size"));
- break;
- }
-
- resize->resize_shell =
- gimp_dialog_new (window_title, wmclass,
- gimp_standard_help_func, help_page,
- GTK_WIN_POS_MOUSE,
- FALSE, FALSE, TRUE,
-
- _("OK"), ok_cb,
- user_data, NULL, NULL, TRUE, FALSE,
-
- _("Reset"), reset_callback,
- resize, NULL, NULL, FALSE, FALSE,
-
- _("Cancel"), cancel_cb ? cancel_cb : gtk_widget_destroy,
- cancel_cb ? user_data : NULL,
- cancel_cb ? NULL : (gpointer) 1,
- NULL, FALSE, TRUE,
-
- NULL);
-
- gtk_signal_connect_object (GTK_OBJECT (resize->resize_shell), "destroy",
- GTK_SIGNAL_FUNC (g_free),
- (GtkObject *) private);
- gtk_signal_connect_object (GTK_OBJECT (resize->resize_shell), "destroy",
- GTK_SIGNAL_FUNC (g_free),
- (GtkObject *) resize);
- }
-
- /* handle the image disappearing under our feet */
- if (object && signal)
- {
- if (cancel_cb)
- gtk_signal_connect (GTK_OBJECT (object), signal,
- cancel_cb,
- user_data);
- else
- gtk_signal_connect_object_while_alive
- (GTK_OBJECT (object), signal,
- GTK_SIGNAL_FUNC (gtk_widget_destroy),
- GTK_OBJECT (resize->resize_shell));
- }
-
- /* the main vbox */
- main_vbox = gtk_vbox_new (FALSE, 4);
- gtk_container_set_border_width (GTK_CONTAINER (main_vbox), 4);
- gtk_container_add (GTK_CONTAINER (GTK_DIALOG (resize->resize_shell)->vbox),
- main_vbox);
-
- /* the pixel dimensions frame */
- gtk_box_pack_start (GTK_BOX (main_vbox), frame, FALSE, FALSE, 0);
- gtk_widget_show (frame);
-
- vbox = gtk_vbox_new (FALSE, 2);
- gtk_container_set_border_width (GTK_CONTAINER (vbox), 2);
- gtk_container_add (GTK_CONTAINER (frame), vbox);
-
- table = gtk_table_new (6, 2, FALSE);
- gtk_container_set_border_width (GTK_CONTAINER (table), 2);
- gtk_table_set_col_spacing (GTK_TABLE (table), 0, 4);
- gtk_table_set_row_spacing (GTK_TABLE (table), 0, 4);
- gtk_table_set_row_spacing (GTK_TABLE (table), 1, 4);
- gtk_table_set_row_spacing (GTK_TABLE (table), 3, 4);
- gtk_table_set_row_spacing (GTK_TABLE (table), 4, 2);
- gtk_box_pack_start (GTK_BOX (vbox), table, FALSE, FALSE, 0);
-
- /* the original width & height labels */
- label = gtk_label_new (_("Original Width:"));
- gtk_misc_set_alignment (GTK_MISC (label), 1.0, 0.5);
- gtk_table_attach (GTK_TABLE (table), label, 0, 1, 0, 1,
- GTK_SHRINK | GTK_FILL, GTK_SHRINK | GTK_FILL, 0, 0);
- gtk_widget_show (label);
-
- label = gtk_label_new (_("Height:"));
- gtk_misc_set_alignment (GTK_MISC (label), 1.0, 0.5);
- gtk_table_attach (GTK_TABLE (table), label, 0, 1, 1, 2,
- GTK_SHRINK | GTK_FILL, GTK_SHRINK | GTK_FILL, 0, 0);
- gtk_widget_show (label);
-
- private->orig_width_label = gtk_label_new ("");
- gtk_misc_set_alignment (GTK_MISC ( private->orig_width_label), 0.0, 0.5);
- gtk_table_attach (GTK_TABLE (table), private->orig_width_label, 1, 2, 0, 1,
- GTK_SHRINK | GTK_FILL, GTK_SHRINK | GTK_FILL, 0, 0);
- gtk_widget_show ( private->orig_width_label);
-
- private->orig_height_label = gtk_label_new ("");
- gtk_misc_set_alignment (GTK_MISC (private->orig_height_label), 0.0, 0.5);
- gtk_table_attach (GTK_TABLE (table), private->orig_height_label, 1, 2, 1, 2,
- GTK_SHRINK | GTK_FILL, GTK_SHRINK | GTK_FILL, 0, 0);
- gtk_widget_show (private->orig_height_label);
-
- /* the new size labels */
- label = gtk_label_new (_("New Width:"));
- gtk_misc_set_alignment (GTK_MISC (label), 1.0, 0.5);
- gtk_table_attach (GTK_TABLE (table), label, 0, 1, 2, 3,
- GTK_SHRINK | GTK_FILL, GTK_SHRINK | GTK_FILL, 0, 0);
- gtk_widget_show (label);
-
- label = gtk_label_new (_("Height:"));
- gtk_misc_set_alignment (GTK_MISC (label), 1.0, 0.5);
- gtk_table_attach (GTK_TABLE (table), label, 0, 1, 3, 4,
- GTK_SHRINK | GTK_FILL, GTK_SHRINK | GTK_FILL, 0, 0);
- gtk_widget_show (label);
-
- /* the new size sizeentry */
- adjustment = gtk_adjustment_new (1, 1, 1, 1, 10, 1);
- spinbutton = gtk_spin_button_new (GTK_ADJUSTMENT (adjustment), 1, 2);
- gtk_spin_button_set_shadow_type (GTK_SPIN_BUTTON (spinbutton),
- GTK_SHADOW_NONE);
- gtk_spin_button_set_numeric (GTK_SPIN_BUTTON (spinbutton), TRUE);
- gtk_widget_set_usize (spinbutton, 75, 0);
-
- private->size_se =
- gimp_size_entry_new (1, unit, "%a", TRUE, TRUE, FALSE, 75,
- GIMP_SIZE_ENTRY_UPDATE_SIZE);
- gimp_size_entry_add_field (GIMP_SIZE_ENTRY (private->size_se),
- GTK_SPIN_BUTTON (spinbutton), NULL);
- gtk_table_attach_defaults (GTK_TABLE (private->size_se), spinbutton,
- 1, 2, 0, 1);
- gtk_widget_show (spinbutton);
- gtk_table_attach (GTK_TABLE (table), private->size_se, 1, 2, 2, 4,
- GTK_SHRINK | GTK_FILL, GTK_SHRINK | GTK_FILL, 0, 0);
- gtk_widget_show (private->size_se);
-
- if (dot_for_dot)
- gimp_size_entry_set_unit (GIMP_SIZE_ENTRY (private->size_se),
- GIMP_UNIT_PIXEL);
-
- gimp_size_entry_set_resolution (GIMP_SIZE_ENTRY (private->size_se), 0,
- resolution_x, FALSE);
- gimp_size_entry_set_resolution (GIMP_SIZE_ENTRY (private->size_se), 1,
- resolution_y, FALSE);
-
- gimp_size_entry_set_refval_boundaries (GIMP_SIZE_ENTRY (private->size_se), 0,
- GIMP_MIN_IMAGE_SIZE,
- GIMP_MAX_IMAGE_SIZE);
- gimp_size_entry_set_refval_boundaries (GIMP_SIZE_ENTRY (private->size_se), 1,
- GIMP_MIN_IMAGE_SIZE,
- GIMP_MAX_IMAGE_SIZE);
-
- gimp_size_entry_set_size (GIMP_SIZE_ENTRY (private->size_se), 0, 0, width);
- gimp_size_entry_set_size (GIMP_SIZE_ENTRY (private->size_se), 1, 0, height);
-
- gimp_size_entry_set_refval (GIMP_SIZE_ENTRY (private->size_se), 0, width);
- gimp_size_entry_set_refval (GIMP_SIZE_ENTRY (private->size_se), 1, height);
-
- gtk_signal_connect (GTK_OBJECT (private->size_se), "value_changed",
- GTK_SIGNAL_FUNC (size_callback),
- resize);
- gtk_signal_connect (GTK_OBJECT (private->size_se), "unit_changed",
- GTK_SIGNAL_FUNC (orig_labels_update),
- resize);
-
- /* initialize the original width & height labels */
- orig_labels_update (private->size_se, resize);
-
- /* the scale ratio labels */
- label = gtk_label_new (_("Ratio X:"));
- gtk_misc_set_alignment (GTK_MISC (label), 1.0, 0.5);
- gtk_table_attach (GTK_TABLE (table), label, 0, 1, 4, 5,
- GTK_SHRINK | GTK_FILL, GTK_SHRINK | GTK_FILL, 0, 0);
- gtk_widget_show (label);
-
- label = gtk_label_new (_("Y:"));
- gtk_misc_set_alignment (GTK_MISC (label), 1.0, 0.5);
- gtk_table_attach (GTK_TABLE (table), label, 0, 1, 5, 6,
- GTK_SHRINK | GTK_FILL, GTK_SHRINK | GTK_FILL, 0, 0);
- gtk_widget_show (label);
-
- /* a table for the spinbuttons and the chainbutton */
- abox = gtk_alignment_new (0.0, 0.5, 0.0, 1.0);
- table2 = gtk_table_new (2, 2, FALSE);
- gtk_table_set_col_spacing (GTK_TABLE (table2), 0, 2);
- gtk_table_set_row_spacing (GTK_TABLE (table2), 0, 2);
- gtk_container_add (GTK_CONTAINER (abox), table2);
- gtk_table_attach (GTK_TABLE (table), abox, 1, 2, 4, 6,
- GTK_SHRINK | GTK_FILL, GTK_SHRINK | GTK_FILL, 0, 0);
- gtk_widget_show (abox);
-
- /* the scale ratio spinbuttons */
- private->ratio_x_adj =
- gtk_adjustment_new (resize->ratio_x,
- (double) GIMP_MIN_IMAGE_SIZE / (double) resize->width,
- (double) GIMP_MAX_IMAGE_SIZE / (double) resize->width,
- 0.01, 0.1, 1);
- spinbutton = gtk_spin_button_new (GTK_ADJUSTMENT (private->ratio_x_adj), 1, 4);
- gtk_spin_button_set_shadow_type (GTK_SPIN_BUTTON (spinbutton),
- GTK_SHADOW_NONE);
- gtk_spin_button_set_numeric (GTK_SPIN_BUTTON (spinbutton), TRUE);
- gtk_widget_set_usize (spinbutton, 75, 0);
- gtk_table_attach_defaults (GTK_TABLE (table2), spinbutton, 0, 1, 0, 1);
- gtk_signal_connect (GTK_OBJECT ( private->ratio_x_adj), "value_changed",
- (GtkSignalFunc) ratio_callback,
- resize);
- gtk_widget_show (spinbutton);
-
- private->ratio_y_adj =
- gtk_adjustment_new (resize->ratio_y,
- (double) GIMP_MIN_IMAGE_SIZE / (double) resize->height,
- (double) GIMP_MAX_IMAGE_SIZE / (double) resize->height,
- 0.01, 0.1, 1);
- spinbutton = gtk_spin_button_new (GTK_ADJUSTMENT (private->ratio_y_adj), 1, 4);
- gtk_spin_button_set_shadow_type (GTK_SPIN_BUTTON (spinbutton),
- GTK_SHADOW_NONE);
- gtk_spin_button_set_numeric (GTK_SPIN_BUTTON (spinbutton), TRUE);
- gtk_widget_set_usize (spinbutton, 75, 0);
- gtk_table_attach_defaults (GTK_TABLE (table2), spinbutton, 0, 1, 1, 2);
- gtk_signal_connect (GTK_OBJECT ( private->ratio_y_adj), "value_changed",
- (GtkSignalFunc) ratio_callback,
- resize);
- gtk_widget_show (spinbutton);
-
- /* the constrain ratio chainbutton */
- private->constrain = gimp_chain_button_new (GIMP_CHAIN_RIGHT);
- gimp_chain_button_set_active (GIMP_CHAIN_BUTTON (private->constrain), TRUE);
- gtk_table_attach_defaults (GTK_TABLE (table2), private->constrain, 1, 2, 0, 2);
- gtk_widget_show (private->constrain);
-
- gtk_widget_show (table2);
- gtk_widget_show (table);
- gtk_widget_show (vbox);
-
- /* the offset frame */
- if (type == ResizeWidget)
- {
- frame = gtk_frame_new (_("Offset"));
- gtk_box_pack_start (GTK_BOX (main_vbox), frame, FALSE, FALSE, 0);
- gtk_widget_show (frame);
-
- vbox = gtk_vbox_new (FALSE, 4);
- gtk_container_set_border_width (GTK_CONTAINER (vbox), 2);
- gtk_container_add (GTK_CONTAINER (frame), vbox);
-
- abox = gtk_alignment_new (0.5, 0.5, 0.0, 0.0);
- gtk_box_pack_start (GTK_BOX (vbox), abox, FALSE, FALSE, 0);
-
- /* the offset sizeentry */
- adjustment = gtk_adjustment_new (1, 1, 1, 1, 10, 1);
- spinbutton = gtk_spin_button_new (GTK_ADJUSTMENT (adjustment), 1, 2);
- gtk_spin_button_set_shadow_type (GTK_SPIN_BUTTON (spinbutton),
- GTK_SHADOW_NONE);
- gtk_spin_button_set_numeric (GTK_SPIN_BUTTON (spinbutton), TRUE);
- gtk_widget_set_usize (spinbutton, 75, 0);
-
- private->offset_se =
- gimp_size_entry_new (1, unit, "%a", TRUE, FALSE, FALSE, 75,
- GIMP_SIZE_ENTRY_UPDATE_SIZE);
- gimp_size_entry_add_field (GIMP_SIZE_ENTRY (private->offset_se),
- GTK_SPIN_BUTTON (spinbutton), NULL);
- gtk_table_attach_defaults (GTK_TABLE (private->offset_se), spinbutton,
- 1, 2, 0, 1);
- gtk_table_set_col_spacing (GTK_TABLE (private->offset_se), 0, 4);
- gimp_size_entry_attach_label (GIMP_SIZE_ENTRY (private->offset_se),
- _("X:"), 0, 0, 1.0);
- gimp_size_entry_attach_label (GIMP_SIZE_ENTRY (private->offset_se),
- _("Y:"), 1, 0, 1.0);
- gtk_widget_show (spinbutton);
- gtk_container_add (GTK_CONTAINER (abox), private->offset_se);
- gtk_widget_show (private->offset_se);
-
- if (dot_for_dot)
- gimp_size_entry_set_unit (GIMP_SIZE_ENTRY (private->offset_se),
- GIMP_UNIT_PIXEL);
-
- gimp_size_entry_set_resolution (GIMP_SIZE_ENTRY (private->offset_se), 0,
- resolution_x, FALSE);
- gimp_size_entry_set_resolution (GIMP_SIZE_ENTRY (private->offset_se), 1,
- resolution_y, FALSE);
-
- gimp_size_entry_set_refval_boundaries
- (GIMP_SIZE_ENTRY (private->offset_se), 0, 0, 0);
- gimp_size_entry_set_refval_boundaries
- (GIMP_SIZE_ENTRY (private->offset_se), 1, 0, 0);
-
- gimp_size_entry_set_refval (GIMP_SIZE_ENTRY (private->offset_se), 0, 0);
- gimp_size_entry_set_refval (GIMP_SIZE_ENTRY (private->offset_se), 1, 0);
-
- gtk_signal_connect (GTK_OBJECT (private->offset_se), "value_changed",
- GTK_SIGNAL_FUNC (offset_update),
- resize);
-
- gtk_widget_show (abox);
-
- /* frame to hold drawing area */
- abox = gtk_alignment_new (0.5, 0.5, 0.0, 0.0);
- gtk_box_pack_start (GTK_BOX (vbox), abox, FALSE, FALSE, 0);
-
- frame = gtk_frame_new (NULL);
- gtk_frame_set_shadow_type (GTK_FRAME (frame), GTK_SHADOW_IN);
- gtk_container_add (GTK_CONTAINER (abox), frame);
-
- private->drawing_area = gtk_drawing_area_new ();
- gtk_drawing_area_size (GTK_DRAWING_AREA (private->drawing_area),
- private->area_width, private->area_height);
- gtk_widget_set_events (private->drawing_area, EVENT_MASK);
- gtk_signal_connect (GTK_OBJECT (private->drawing_area), "event",
- GTK_SIGNAL_FUNC (resize_events),
- NULL);
- gtk_object_set_user_data (GTK_OBJECT (private->drawing_area), resize);
- gtk_container_add (GTK_CONTAINER (frame), private->drawing_area);
- gtk_widget_show (private->drawing_area);
- gtk_widget_show (frame);
-
- gtk_widget_show (abox);
- gtk_widget_show (vbox);
- }
-
- /* the resolution stuff */
- if ((type == ScaleWidget) && (target == ResizeImage))
- {
- frame = gtk_frame_new (_("Print Size & Display Unit"));
- gtk_box_pack_start (GTK_BOX (main_vbox), frame, FALSE, FALSE, 0);
- gtk_widget_show (frame);
-
- vbox = gtk_vbox_new (FALSE, 2);
- gtk_container_set_border_width (GTK_CONTAINER (vbox), 2);
- gtk_container_add (GTK_CONTAINER (frame), vbox);
-
- table = gtk_table_new (4, 2, FALSE);
- gtk_table_set_col_spacing (GTK_TABLE (table), 0, 4);
- gtk_table_set_row_spacing (GTK_TABLE (table), 1, 4);
- gtk_box_pack_start (GTK_BOX (vbox), table, FALSE, FALSE, 0);
-
- /* the print size labels */
- label = gtk_label_new (_("New Width:"));
- gtk_misc_set_alignment (GTK_MISC (label), 1.0, 0.5);
- gtk_table_attach (GTK_TABLE (table), label, 0, 1, 0, 1,
- GTK_SHRINK | GTK_FILL, GTK_SHRINK | GTK_FILL, 0, 0);
- gtk_widget_show (label);
-
- label = gtk_label_new (_("Height:"));
- gtk_misc_set_alignment (GTK_MISC (label), 1.0, 0.5);
- gtk_table_attach (GTK_TABLE (table), label, 0, 1, 1, 2,
- GTK_SHRINK | GTK_FILL, GTK_SHRINK | GTK_FILL, 0, 0);
- gtk_widget_show (label);
-
- /* the print size sizeentry */
- abox = gtk_alignment_new (0.0, 0.5, 0.0, 1.0);
- adjustment = gtk_adjustment_new (1, 1, 1, 1, 10, 1);
- spinbutton = gtk_spin_button_new (GTK_ADJUSTMENT (adjustment), 1, 2);
- gtk_spin_button_set_shadow_type (GTK_SPIN_BUTTON (spinbutton),
- GTK_SHADOW_NONE);
- gtk_spin_button_set_numeric (GTK_SPIN_BUTTON (spinbutton), TRUE);
- gtk_widget_set_usize (spinbutton, 75, 0);
- gtk_container_add (GTK_CONTAINER (abox), spinbutton);
- gtk_widget_show (spinbutton);
- gtk_table_attach (GTK_TABLE (table), abox, 1, 2, 0, 1,
- GTK_SHRINK | GTK_FILL, GTK_SHRINK | GTK_FILL, 0, 0);
- gtk_widget_show (abox);
-
- abox = gtk_alignment_new (0.0, 0.5, 0.0, 1.0);
- private->printsize_se =
- gimp_size_entry_new (1, unit, "%a", FALSE, FALSE, FALSE, 75,
- GIMP_SIZE_ENTRY_UPDATE_SIZE);
- gimp_size_entry_add_field (GIMP_SIZE_ENTRY (private->printsize_se),
- GTK_SPIN_BUTTON (spinbutton), NULL);
- gtk_container_add (GTK_CONTAINER (abox), private->printsize_se);
- gtk_table_attach (GTK_TABLE (table), abox, 1, 2, 1, 2,
- GTK_SHRINK | GTK_FILL, GTK_SHRINK | GTK_FILL, 0, 0);
- gtk_widget_show (private->printsize_se);
- gtk_widget_show (abox);
-
- gimp_size_entry_set_resolution (GIMP_SIZE_ENTRY (private->printsize_se),
- 0, resolution_x, FALSE);
- gimp_size_entry_set_resolution (GIMP_SIZE_ENTRY (private->printsize_se),
- 1, resolution_y, FALSE);
-
- gimp_size_entry_set_refval_boundaries
- (GIMP_SIZE_ENTRY (private->printsize_se),
- 0, GIMP_MIN_IMAGE_SIZE, GIMP_MAX_IMAGE_SIZE);
- gimp_size_entry_set_refval_boundaries
- (GIMP_SIZE_ENTRY (private->printsize_se),
- 1, GIMP_MIN_IMAGE_SIZE, GIMP_MAX_IMAGE_SIZE);
-
- gimp_size_entry_set_refval (GIMP_SIZE_ENTRY (private->printsize_se),
- 0, resize->width);
- gimp_size_entry_set_refval (GIMP_SIZE_ENTRY (private->printsize_se),
- 1, resize->height);
-
- gtk_signal_connect (GTK_OBJECT (private->printsize_se), "value_changed",
- GTK_SIGNAL_FUNC (printsize_update),
- resize);
- gtk_signal_connect (GTK_OBJECT (private->printsize_se), "unit_changed",
- GTK_SIGNAL_FUNC (unit_update),
- resize);
-
- /* the resolution labels */
- label = gtk_label_new (_("Resolution X:"));
- gtk_misc_set_alignment (GTK_MISC (label), 1.0, 0.5);
- gtk_table_attach (GTK_TABLE (table), label, 0, 1, 2, 3,
- GTK_SHRINK | GTK_FILL, GTK_SHRINK | GTK_FILL, 0, 0);
- gtk_widget_show (label);
-
- label = gtk_label_new (_("Y:"));
- gtk_misc_set_alignment (GTK_MISC (label), 1.0, 0.5);
- gtk_table_attach (GTK_TABLE (table), label, 0, 1, 3, 4,
- GTK_SHRINK | GTK_FILL, GTK_SHRINK | GTK_FILL, 0, 0);
- gtk_widget_show (label);
-
- /* the resolution sizeentry */
- adjustment = gtk_adjustment_new (1, 1, 1, 1, 10, 1);
- spinbutton = gtk_spin_button_new (GTK_ADJUSTMENT (adjustment), 1, 2);
- gtk_spin_button_set_shadow_type (GTK_SPIN_BUTTON (spinbutton),
- GTK_SHADOW_NONE);
- gtk_spin_button_set_numeric (GTK_SPIN_BUTTON (spinbutton), TRUE);
- gtk_widget_set_usize (spinbutton, 75, 0);
-
- private->resolution_se =
- gimp_size_entry_new (1, default_resolution_units, _("pixels/%a"),
- FALSE, FALSE, FALSE, 75,
- GIMP_SIZE_ENTRY_UPDATE_RESOLUTION);
- gtk_table_set_col_spacing (GTK_TABLE (private->resolution_se), 1, 2);
- gtk_table_set_col_spacing (GTK_TABLE (private->resolution_se), 2, 2);
- gimp_size_entry_add_field (GIMP_SIZE_ENTRY (private->resolution_se),
- GTK_SPIN_BUTTON (spinbutton), NULL);
- gtk_table_attach_defaults (GTK_TABLE (private->resolution_se), spinbutton,
- 1, 2, 0, 1);
- gtk_widget_show (spinbutton);
- gtk_table_attach (GTK_TABLE (table), private->resolution_se, 1, 2, 2, 4,
- GTK_SHRINK | GTK_FILL, GTK_SHRINK | GTK_FILL, 0, 0);
- gtk_widget_show (private->resolution_se);
-
- gimp_size_entry_set_refval_boundaries
- (GIMP_SIZE_ENTRY (private->resolution_se),
- 0, GIMP_MIN_RESOLUTION, GIMP_MAX_RESOLUTION);
- gimp_size_entry_set_refval_boundaries
- (GIMP_SIZE_ENTRY (private->resolution_se),
- 1, GIMP_MIN_RESOLUTION, GIMP_MAX_RESOLUTION);
-
- gimp_size_entry_set_refval (GIMP_SIZE_ENTRY (private->resolution_se),
- 0, resize->resolution_x);
- gimp_size_entry_set_refval (GIMP_SIZE_ENTRY (private->resolution_se),
- 1, resize->resolution_y);
-
- gtk_signal_connect (GTK_OBJECT (private->resolution_se), "value_changed",
- GTK_SIGNAL_FUNC (resolution_callback),
- resize);
-
- /* the resolution chainbutton */
- private->equal_res = gimp_chain_button_new (GIMP_CHAIN_RIGHT);
- gimp_chain_button_set_active
- (GIMP_CHAIN_BUTTON (private->equal_res),
- ABS (resize->resolution_x - resize->resolution_y) < 1e-5);
- gtk_table_attach_defaults (GTK_TABLE (private->resolution_se),
- private->equal_res, 2, 3, 0, 2);
- gtk_widget_show (private->equal_res);
-
- gtk_widget_show (table);
- gtk_widget_show (vbox);
- }
-
- gtk_widget_show (main_vbox);
-
- /* finally, activate the first entry */
- gimp_size_entry_grab_focus (GIMP_SIZE_ENTRY (private->size_se));
-
- return resize;
- }
-
- static void
- resize_draw (Resize *resize)
- {
- GtkWidget *widget;
- ResizePrivate *private;
- gint aw, ah;
- gint x, y;
- gint w, h;
-
- /* Only need to draw if it's a resize widget */
- if (resize->type != ResizeWidget)
- return;
-
- private = (ResizePrivate *) resize->private_part;
- widget = private->drawing_area;
-
- /* If we're making the size larger */
- if (private->old_width <= resize->width)
- w = resize->width;
- /* otherwise, if we're making the size smaller */
- else
- w = private->old_width * 2 - resize->width;
- /* If we're making the size larger */
- if (private->old_height <= resize->height)
- h = resize->height;
- /* otherwise, if we're making the size smaller */
- else
- h = private->old_height * 2 - resize->height;
-
- if (w > h)
- private->ratio = (gdouble) DRAWING_AREA_SIZE / (gdouble) w;
- else
- private->ratio = (gdouble) DRAWING_AREA_SIZE / (gdouble) h;
-
- aw = (gint) (private->ratio * w);
- ah = (gint) (private->ratio * h);
-
- if (aw != private->area_width || ah != private->area_height)
- {
- private->area_width = aw;
- private->area_height = ah;
- gtk_drawing_area_size (GTK_DRAWING_AREA (private->drawing_area), aw, ah);
- }
-
- if (private->old_width <= resize->width)
- x = private->ratio * resize->offset_x;
- else
- x = private->ratio * (resize->offset_x + private->old_width - resize->width);
- if (private->old_height <= resize->height)
- y = private->ratio * resize->offset_y;
- else
- y = private->ratio * (resize->offset_y + private->old_height - resize->height);
-
- w = private->ratio * private->old_width;
- h = private->ratio * private->old_height;
-
- gdk_window_clear (private->drawing_area->window);
- gtk_draw_shadow (widget->style, widget->window,
- GTK_STATE_NORMAL, GTK_SHADOW_OUT,
- x, y, w, h);
-
- /* If we're making the size smaller */
- if (private->old_width > resize->width ||
- private->old_height > resize->height)
- {
- if (private->old_width > resize->width)
- {
- x = private->ratio * (private->old_width - resize->width);
- w = private->ratio * resize->width;
- }
- else
- {
- x = -1;
- w = aw + 2;
- }
- if (private->old_height > resize->height)
- {
- y = private->ratio * (private->old_height - resize->height);
- h = private->ratio * resize->height;
- }
- else
- {
- y = -1;
- h = ah + 2;
- }
-
- gdk_draw_rectangle (private->drawing_area->window,
- widget->style->black_gc, 0,
- x, y, w, h);
- }
- }
-
- static gint
- resize_bound_off_x (Resize *resize,
- gint off_x)
- {
- ResizePrivate *private;
-
- private = (ResizePrivate *) resize->private_part;
-
- if (private->old_width <= resize->width)
- off_x = CLAMP (off_x, 0, (resize->width - private->old_width));
- else
- off_x = CLAMP (off_x, (resize->width - private->old_width), 0);
-
- return off_x;
- }
-
- static gint
- resize_bound_off_y (Resize *resize,
- gint off_y)
- {
- ResizePrivate *private;
-
- private = (ResizePrivate *) resize->private_part;
-
- if (private->old_height <= resize->height)
- off_y = CLAMP (off_y, 0, (resize->height - private->old_height));
- else
- off_y = CLAMP (off_y, (resize->height - private->old_height), 0);
-
- return off_y;
- }
-
- static void
- orig_labels_update (GtkWidget *widget,
- gpointer data)
- {
- Resize *resize;
- ResizePrivate *private;
- GimpUnit unit;
- gchar format_buf[16];
- gchar buf[32];
-
- static GimpUnit label_unit = GIMP_UNIT_PIXEL;
-
- resize = (Resize *) data;
- private = (ResizePrivate *) resize->private_part;
-
- unit = gimp_size_entry_get_unit (GIMP_SIZE_ENTRY (widget));
-
- if (unit != GIMP_UNIT_PERCENT)
- label_unit = unit;
-
- if (label_unit) /* unit != GIMP_UNIT_PIXEL */
- {
- gdouble unit_factor = gimp_unit_get_factor (label_unit);
-
- g_snprintf (format_buf, sizeof (format_buf), "%%.%df %s",
- gimp_unit_get_digits (label_unit) + 1,
- gimp_unit_get_symbol (label_unit));
- g_snprintf (buf, sizeof (buf), format_buf,
- private->old_width * unit_factor / private->old_res_x);
- gtk_label_set_text (GTK_LABEL (private->orig_width_label), buf);
- g_snprintf (buf, sizeof (buf), format_buf,
- private->old_height * unit_factor / private->old_res_y);
- gtk_label_set_text (GTK_LABEL (private->orig_height_label), buf);
- }
- else /* unit == GIMP_UNIT_PIXEL */
- {
- g_snprintf (buf, sizeof (buf), "%d", private->old_width);
- gtk_label_set_text (GTK_LABEL (private->orig_width_label), buf);
- g_snprintf (buf, sizeof (buf), "%d", private->old_height);
- gtk_label_set_text (GTK_LABEL (private->orig_height_label), buf);
- }
- }
-
- static void
- unit_update (GtkWidget *widget,
- gpointer data)
- {
- Resize *resize;
-
- resize = (Resize *) data;
- resize->unit = gimp_size_entry_get_unit (GIMP_SIZE_ENTRY (widget));
- }
-
- static void
- offset_update (GtkWidget *widget,
- gpointer data)
- {
- Resize *resize;
- ResizePrivate *private;
- gint offset_x;
- gint offset_y;
-
- resize = (Resize *) data;
- private = (ResizePrivate *) resize->private_part;
-
- offset_x =
- RINT (gimp_size_entry_get_refval (GIMP_SIZE_ENTRY (private->offset_se), 0));
- offset_x = resize_bound_off_x (resize, offset_x);
-
- offset_y =
- RINT (gimp_size_entry_get_refval (GIMP_SIZE_ENTRY (private->offset_se), 1));
- offset_y = resize_bound_off_y (resize, offset_y);
-
- if ((offset_x != resize->offset_x) ||
- (offset_y != resize->offset_y))
- {
- resize->offset_x = offset_x;
- resize->offset_y = offset_y;
- resize_draw (resize);
- }
- }
-
- /*
- * Callback function for "Reset" button.
- * Data must be a pointer pointer to a Resize structure.
- */
- static void
- reset_callback (GtkWidget *widget,
- gpointer data)
- {
- Resize *resize;
- ResizePrivate *private;
-
- resize = (Resize *)data;
- private = (ResizePrivate *)resize->private_part;
-
- /* restore size and ratio settings */
- size_update (resize, private->old_width, private->old_height, 1.0, 1.0);
-
- if ((resize->type == ScaleWidget) && (resize->target == ResizeImage))
- {
- /* restore resolution settings */
- resolution_update (resize, private->old_res_x, private->old_res_y);
- }
-
- }
-
- static void
- size_callback (GtkWidget *widget,
- gpointer data)
- {
- Resize *resize;
- ResizePrivate *private;
- gdouble width;
- gdouble height;
- gdouble ratio_x;
- gdouble ratio_y;
-
- resize = (Resize *) data;
- private = (ResizePrivate *) resize->private_part;
-
- width = gimp_size_entry_get_refval (GIMP_SIZE_ENTRY (private->size_se), 0);
- height = gimp_size_entry_get_refval (GIMP_SIZE_ENTRY (private->size_se), 1);
-
- ratio_x = width / (gdouble) private->old_width;
- ratio_y = height / (gdouble) private->old_height;
-
- if (gimp_chain_button_get_active (GIMP_CHAIN_BUTTON (private->constrain)))
- {
- if (ratio_x != resize->ratio_x)
- {
- ratio_y = ratio_x;
- height = (gdouble) private->old_height * ratio_y;
- height = CLAMP (height, GIMP_MIN_IMAGE_SIZE, GIMP_MAX_IMAGE_SIZE);
- }
- else
- {
- ratio_x = ratio_y;
- width = (gdouble) private->old_width * ratio_x;
- width = CLAMP (width, GIMP_MIN_IMAGE_SIZE, GIMP_MAX_IMAGE_SIZE);
- }
- }
-
- size_update (resize, width, height, ratio_x, ratio_y);
- }
-
- static void
- ratio_callback (GtkWidget *widget,
- gpointer data)
- {
- Resize *resize;
- ResizePrivate *private;
- gdouble width;
- gdouble height;
- gdouble ratio_x;
- gdouble ratio_y;
-
- resize = (Resize *) data;
- private = (ResizePrivate *) resize->private_part;
-
- width = gimp_size_entry_get_refval (GIMP_SIZE_ENTRY (private->size_se), 0);
- height = gimp_size_entry_get_refval (GIMP_SIZE_ENTRY (private->size_se), 1);
-
- ratio_x = GTK_ADJUSTMENT (private->ratio_x_adj)->value;
- ratio_y = GTK_ADJUSTMENT (private->ratio_y_adj)->value;
-
- if (gimp_chain_button_get_active (GIMP_CHAIN_BUTTON (private->constrain)))
- {
- if (ratio_x != resize->ratio_x)
- {
- ratio_y = ratio_x;
- }
- else
- {
- ratio_x = ratio_y;
- }
- }
-
- width = CLAMP (private->old_width * ratio_x,
- GIMP_MIN_IMAGE_SIZE, GIMP_MAX_IMAGE_SIZE);
- height = CLAMP (private->old_height * ratio_y,
- GIMP_MIN_IMAGE_SIZE, GIMP_MAX_IMAGE_SIZE);
-
- size_update (resize, width, height, ratio_x, ratio_y);
- }
-
- static void
- size_update (Resize *resize,
- double width,
- double height,
- double ratio_x,
- double ratio_y)
- {
- ResizePrivate *private;
-
- private = (ResizePrivate *) resize->private_part;
-
- resize->width = (gint) (width + 0.5);
- resize->height = (gint) (height + 0.5);
-
- resize->ratio_x = ratio_x;
- resize->ratio_y = ratio_y;
-
- gtk_signal_handler_block_by_data (GTK_OBJECT (private->size_se), resize);
- gimp_size_entry_set_refval (GIMP_SIZE_ENTRY (private->size_se),
- 0, width);
- gimp_size_entry_set_refval (GIMP_SIZE_ENTRY (private->size_se),
- 1, height);
- gtk_signal_handler_unblock_by_data (GTK_OBJECT (private->size_se), resize);
-
- gtk_signal_handler_block_by_data (GTK_OBJECT (private->ratio_x_adj), resize);
- gtk_signal_handler_block_by_data (GTK_OBJECT (private->ratio_y_adj), resize);
- gtk_adjustment_set_value (GTK_ADJUSTMENT (private->ratio_x_adj), ratio_x);
- gtk_adjustment_set_value (GTK_ADJUSTMENT (private->ratio_y_adj), ratio_y);
- gtk_signal_handler_unblock_by_data (GTK_OBJECT (private->ratio_x_adj), resize);
- gtk_signal_handler_unblock_by_data (GTK_OBJECT (private->ratio_y_adj), resize);
-
- if (resize->type == ResizeWidget)
- {
- resize->offset_x = resize_bound_off_x (resize, resize->offset_x);
- resize->offset_y = resize_bound_off_y (resize, resize->offset_y);
-
- gimp_size_entry_set_refval_boundaries
- (GIMP_SIZE_ENTRY (private->offset_se), 0,
- MIN (0, resize->width - private->old_width),
- MAX (0, resize->width - private->old_width));
- gimp_size_entry_set_refval_boundaries
- (GIMP_SIZE_ENTRY (private->offset_se), 1,
- MIN (0, resize->height - private->old_height),
- MAX (0, resize->height - private->old_height));
-
- gimp_size_entry_set_refval (GIMP_SIZE_ENTRY (private->offset_se),
- 0, resize->offset_x);
- gimp_size_entry_set_refval (GIMP_SIZE_ENTRY (private->offset_se),
- 1, resize->offset_y);
- }
-
- if ((resize->type == ScaleWidget) && (resize->target == ResizeImage))
- {
- gtk_signal_handler_block_by_data (GTK_OBJECT (private->printsize_se),
- resize);
- gimp_size_entry_set_refval (GIMP_SIZE_ENTRY (private->printsize_se),
- 0, width);
- gimp_size_entry_set_refval (GIMP_SIZE_ENTRY (private->printsize_se),
- 1, height);
- gtk_signal_handler_unblock_by_data (GTK_OBJECT (private->printsize_se),
- resize);
- }
-
- resize_draw (resize);
- }
-
- static void
- printsize_update (GtkWidget *widget,
- gpointer data)
- {
- Resize *resize;
- ResizePrivate *private;
- gdouble width;
- gdouble height;
- gdouble print_width;
- gdouble print_height;
- gdouble res_x;
- gdouble res_y;
-
- resize = (Resize *) data;
- private = (ResizePrivate *) resize->private_part;
-
- width = gimp_size_entry_get_refval (GIMP_SIZE_ENTRY (private->size_se), 0);
- height = gimp_size_entry_get_refval (GIMP_SIZE_ENTRY (private->size_se), 1);
-
- print_width =
- gimp_size_entry_get_refval (GIMP_SIZE_ENTRY (private->printsize_se), 0);
- print_height =
- gimp_size_entry_get_refval (GIMP_SIZE_ENTRY (private->printsize_se), 1);
-
- /* this is tricky: we use the sizes in pixels (which is otherwise
- * meaningless for the "print size" widgets) to calculate the new
- * resolution.
- */
- res_x = CLAMP (resize->resolution_x * width / print_width,
- GIMP_MIN_RESOLUTION, GIMP_MAX_RESOLUTION);
- res_y = CLAMP (resize->resolution_y * height / print_height,
- GIMP_MIN_RESOLUTION, GIMP_MAX_RESOLUTION);
-
- if (gimp_chain_button_get_active (GIMP_CHAIN_BUTTON (private->equal_res)))
- {
- if (res_x != resize->resolution_x)
- {
- res_y = res_x;
- }
- else
- {
- res_x = res_y;
- }
- }
-
- resize->resolution_x = res_x;
- resize->resolution_y = res_y;
-
- gtk_signal_handler_block_by_data (GTK_OBJECT (private->resolution_se), resize);
- gimp_size_entry_set_refval (GIMP_SIZE_ENTRY (private->resolution_se),
- 0, res_x);
- gimp_size_entry_set_refval (GIMP_SIZE_ENTRY (private->resolution_se),
- 1, res_y);
- gtk_signal_handler_unblock_by_data (GTK_OBJECT (private->resolution_se),
- resize);
-
- gtk_signal_handler_block_by_data (GTK_OBJECT (private->size_se), resize);
- gimp_size_entry_set_resolution (GIMP_SIZE_ENTRY (private->size_se),
- 0, res_x, TRUE);
- gimp_size_entry_set_resolution (GIMP_SIZE_ENTRY (private->size_se),
- 1, res_y, TRUE);
- gimp_size_entry_set_refval (GIMP_SIZE_ENTRY (private->size_se),
- 0, width);
- gimp_size_entry_set_refval (GIMP_SIZE_ENTRY (private->size_se),
- 1, height);
- gtk_signal_handler_unblock_by_data (GTK_OBJECT (private->size_se), resize);
-
- gtk_signal_handler_block_by_data (GTK_OBJECT (private->printsize_se), resize);
- gimp_size_entry_set_resolution (GIMP_SIZE_ENTRY (private->printsize_se),
- 0, res_x, TRUE);
- gimp_size_entry_set_resolution (GIMP_SIZE_ENTRY (private->printsize_se),
- 1, res_y, TRUE);
- gimp_size_entry_set_refval (GIMP_SIZE_ENTRY (private->printsize_se),
- 0, width);
- gimp_size_entry_set_refval (GIMP_SIZE_ENTRY (private->printsize_se),
- 1, height);
- gtk_signal_handler_unblock_by_data (GTK_OBJECT (private->printsize_se),
- resize);
- }
-
- /* Callback for resolution change. */
- static void
- resolution_callback (GtkWidget *widget,
- gpointer data)
- {
- Resize *resize;
- ResizePrivate *private;
- gdouble res_x;
- gdouble res_y;
-
- resize = (Resize *) data;
- private = (ResizePrivate *) resize->private_part;
-
- res_x =
- gimp_size_entry_get_refval (GIMP_SIZE_ENTRY (private->resolution_se), 0);
- res_y =
- gimp_size_entry_get_refval (GIMP_SIZE_ENTRY (private->resolution_se), 1);
-
- if (gimp_chain_button_get_active (GIMP_CHAIN_BUTTON (private->equal_res)))
- {
- if (res_x != resize->resolution_x)
- {
- res_y = res_x;
- }
- else
- {
- res_x = res_y;
- }
- }
-
- resolution_update (resize, res_x, res_y);
- }
-
- /* Update widgets with resolution settings found in given Resize struct. */
- static void
- resolution_update (Resize *resize,
- gdouble res_x,
- gdouble res_y)
- {
- ResizePrivate *private;
-
- private = (ResizePrivate *) resize->private_part;
-
- resize->resolution_x = res_x;
- resize->resolution_y = res_y;
-
- gtk_signal_handler_block_by_data (GTK_OBJECT (private->resolution_se), resize);
- gimp_size_entry_set_refval (GIMP_SIZE_ENTRY (private->resolution_se),
- 0, res_x);
- gimp_size_entry_set_refval (GIMP_SIZE_ENTRY (private->resolution_se),
- 1, res_y);
- gtk_signal_handler_unblock_by_data (GTK_OBJECT (private->resolution_se),
- resize);
-
- gtk_signal_handler_block_by_data (GTK_OBJECT (private->size_se), resize);
- gimp_size_entry_set_resolution (GIMP_SIZE_ENTRY (private->size_se),
- 0, res_x, TRUE);
- gimp_size_entry_set_resolution (GIMP_SIZE_ENTRY (private->size_se),
- 1, res_y, TRUE);
- gtk_signal_handler_unblock_by_data (GTK_OBJECT (private->size_se), resize);
-
- gtk_signal_handler_block_by_data (GTK_OBJECT (private->printsize_se), resize);
- gimp_size_entry_set_resolution (GIMP_SIZE_ENTRY (private->printsize_se),
- 0, res_x, TRUE);
- gimp_size_entry_set_resolution (GIMP_SIZE_ENTRY (private->printsize_se),
- 1, res_y, TRUE);
- gtk_signal_handler_unblock_by_data (GTK_OBJECT (private->printsize_se),
- resize);
- }
-
- static gint
- resize_events (GtkWidget *widget,
- GdkEvent *event)
- {
- Resize *resize;
- ResizePrivate *private;
- gint dx, dy;
- gint off_x, off_y;
-
- resize = (Resize *) gtk_object_get_user_data (GTK_OBJECT (widget));
- private = (ResizePrivate *) resize->private_part;
-
- switch (event->type)
- {
- case GDK_EXPOSE:
- resize_draw (resize);
- break;
- case GDK_BUTTON_PRESS:
- gdk_pointer_grab (private->drawing_area->window, FALSE,
- (GDK_BUTTON1_MOTION_MASK |
- GDK_BUTTON_RELEASE_MASK),
- NULL, NULL, event->button.time);
- private->orig_x = resize->offset_x;
- private->orig_y = resize->offset_y;
- private->start_x = event->button.x;
- private->start_y = event->button.y;
- break;
- case GDK_MOTION_NOTIFY:
- /* X offset */
- dx = event->motion.x - private->start_x;
- off_x = private->orig_x + dx / private->ratio;
- off_x = resize_bound_off_x (resize, off_x);
- gimp_size_entry_set_refval (GIMP_SIZE_ENTRY (private->offset_se),
- 0, off_x);
-
- /* Y offset */
- dy = event->motion.y - private->start_y;
- off_y = private->orig_y + dy / private->ratio;
- off_y = resize_bound_off_y (resize, off_y);
- gimp_size_entry_set_refval (GIMP_SIZE_ENTRY (private->offset_se),
- 1, off_y);
-
- gtk_signal_emit_by_name (GTK_OBJECT (private->offset_se), "value_changed",
- resize);
- break;
- case GDK_BUTTON_RELEASE:
- gdk_pointer_ungrab (event->button.time);
- break;
- default:
- break;
- }
-
- return FALSE;
- }
-
- /*** Resize sanity checks ***/
-
- void
- resize_scale_implement (ImageResize *image_scale)
- {
- GImage *gimage = NULL;
- gboolean rulers_flush = FALSE;
- gboolean display_flush = FALSE; /* this is a bit ugly:
- we hijack the flush variable
- to check if an undo_group was
- already started */
-
- g_assert (image_scale != NULL);
- gimage = image_scale->gimage;
- g_assert (gimage != NULL);
-
- if (image_scale->resize->resolution_x != gimage->xresolution ||
- image_scale->resize->resolution_y != gimage->yresolution)
- {
- undo_push_group_start (gimage, IMAGE_SCALE_UNDO);
-
- gimage_set_resolution (gimage,
- image_scale->resize->resolution_x,
- image_scale->resize->resolution_y);
-
- rulers_flush = TRUE;
- display_flush = TRUE;
- }
-
- if (image_scale->resize->unit != gimage->unit)
- {
- if (!display_flush)
- undo_push_group_start (gimage, IMAGE_SCALE_UNDO);
-
- gimage_set_unit (gimage, image_scale->resize->unit);
- gdisplays_setup_scale (gimage);
- gdisplays_resize_cursor_label (gimage);
-
- rulers_flush = TRUE;
- display_flush = TRUE;
- }
-
- if (image_scale->resize->width != gimage->width ||
- image_scale->resize->height != gimage->height)
- {
- if (image_scale->resize->width > 0 &&
- image_scale->resize->height > 0)
- {
- if (!display_flush)
- undo_push_group_start (gimage, IMAGE_SCALE_UNDO);
-
- gimage_scale (gimage,
- image_scale->resize->width,
- image_scale->resize->height);
-
- display_flush = TRUE;
- }
- else
- {
- g_message (_("Scale Error: Both width and height must be "
- "greater than zero."));
- return;
- }
- }
-
- if (rulers_flush)
- {
- gdisplays_setup_scale (gimage);
- gdisplays_resize_cursor_label (gimage);
- }
-
- if (display_flush)
- {
- undo_push_group_end (gimage);
- gdisplays_flush ();
- }
- }
-
- static void
- resize_scale_warn_callback (GtkWidget *widget,
- gboolean do_scale,
- gpointer data)
- {
- ImageResize *image_scale = NULL;
- GImage *gimage = NULL;
-
- g_assert (data != NULL);
- image_scale = (ImageResize *) data;
- gimage = image_scale->gimage;
- g_assert (gimage != NULL);
-
- if (do_scale == TRUE) /* User doesn't mind losing layers... */
- {
- resize_scale_implement (image_scale);
- gtk_widget_destroy (image_scale->resize->resize_shell);
- }
- else
- {
- gtk_widget_set_sensitive (image_scale->resize->resize_shell, TRUE);
- }
- }
-
- gboolean
- resize_check_layer_scaling (ImageResize *image_scale)
- {
- /* Inventory the layer list in gimage and return TRUE if, after
- * scaling, they all retain positive x and y pixel dimensions.
- * Otherwise, put up a modal boolean dialog box and ask the user if
- * she wishes to proceed. Return FALSE in the dialog case; the dialog box
- * callback will complete the job if the user really wants to
- * proceed. <02/22/2000 gosgood@idt.net>
- */
-
- gboolean success = FALSE;
- GImage *gimage = NULL;
- GSList *list = NULL;
- Layer *layer = NULL;
- GtkWidget *dialog = NULL;
-
- g_assert (image_scale != NULL);
-
- if (NULL != (gimage = image_scale->gimage))
- {
- /* Step through layers; test scaled dimensions. */
-
- success = TRUE;
- list = gimage->layers;
- while (list && success == TRUE)
- {
- layer = (Layer *)list->data;
- success = layer_check_scaling (layer,
- image_scale->resize->width,
- image_scale->resize->height);
- list = g_slist_next (list);
-
- }
- /* Warn user on failure */
- if (success == FALSE)
- {
- dialog =
- gimp_query_boolean_box (_("Layer Too Small"),
- gimp_standard_help_func,
- "dialogs/scale_layer_warn.html",
- FALSE,
- _("The chosen image size will shrink\n"
- "some layers completely away.\n"
- "Is this what you want?"),
- _("OK"), _("Cancel"),
- GTK_OBJECT (image_scale->resize->resize_shell),
- "destroy",
- resize_scale_warn_callback,
- image_scale);
- gtk_widget_show (dialog);
- }
- }
- return success;
- }
-