/* 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 "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 *); static void unit_update (GtkWidget *, gpointer); static gint resize_bound_off_x (Resize *, gint); static gint resize_bound_off_y (Resize *, gint); static void orig_labels_update (GtkWidget *, gpointer); static void size_callback (GtkWidget *, gpointer); static void ratio_callback (GtkWidget *, gpointer); static void size_update (Resize *, gdouble, gdouble, gdouble, gdouble); static void offset_update (GtkWidget *, gpointer); static gint resize_events (GtkWidget *, GdkEvent *); static void printsize_update (GtkWidget *, gpointer); static void resolution_update (GtkWidget *, gpointer); static void resize_scale_warn_callback (GtkWidget *, gboolean, gpointer); 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_new (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/resize_layer.html"; break; case ResizeImage: wmclass = "resize_image"; window_title = _("Set Canvas Size"); help_page = "dialogs/resize_image.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, _("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", (GtkSignalFunc) size_callback, resize); gtk_signal_connect (GTK_OBJECT (private->size_se), "unit_changed", (GtkSignalFunc) 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", (GtkSignalFunc) 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", (GtkSignalFunc) 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", (GtkSignalFunc) printsize_update, resize); gtk_signal_connect (GTK_OBJECT (private->printsize_se), "unit_changed", (GtkSignalFunc) 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", (GtkSignalFunc) resolution_update, 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 = (gint) (gimp_size_entry_get_refval (GIMP_SIZE_ENTRY (private->offset_se), 0) + 0.5); offset_x = resize_bound_off_x (resize, offset_x); offset_y = (gint) (gimp_size_entry_get_refval (GIMP_SIZE_ENTRY (private->offset_se), 1) + 0.5); 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); } } static void size_callback (GtkWidget *widget, gpointer data) { Resize *resize; ResizePrivate *private; double width; double height; double ratio_x; double 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 / (double) private->old_width; ratio_y = height / (double) 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 = (double) private->old_height * ratio_y; height = CLAMP (height, GIMP_MIN_IMAGE_SIZE, GIMP_MAX_IMAGE_SIZE); } else { ratio_x = ratio_y; width = (double) 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; double width; double height; double ratio_x; double 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; double width; double height; double print_width; double print_height; double res_x; double 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); } static void resolution_update (GtkWidget *widget, gpointer data) { Resize *resize; ResizePrivate *private; double res_x; double 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; } } 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; int dx, dy; int 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 client_data) { ImageResize *image_scale = NULL; GImage *gimage = NULL; g_assert (client_data != NULL); image_scale = (ImageResize *) client_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; }