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gimp/app/resize.c
Michael Natterer 002aa905db app/Makefile.am app/gimphelp.[ch] new files 
1999-09-27  Michael Natterer  <mitch@gimp.org>

	* app/Makefile.am
	* app/gimphelp.[ch]
	* app/gimpui.[ch]: new files

	* app/interface.[ch]
	* app/preferences_dialog.[ch]

	The GIMP Help System part 1: Press "F1" in any dialog to pop up
	the help page for this dialog.

	Moved the widget constructors from preferences_dialog.[ch] and the
	query boxes from interface.[ch] to gimpui.[ch].

	The dialog constructors take a help_func and a help_data
	parameter and install the "F1" accelerator which emits the new
	"help" signal.

	The "help" signal callback calls help_func(help_data) which finally
	has to call gimp_help() which in turn invokes the help browser.

	Still have to find a proper way to (1) prevent "F1" being assigned
	to some menu item and (2) to catch "F1" while browsing the menu
	trees in order to pop up the help for the selected item.

	* app/menus.c: a <Toolbox>/File/Help... menu item.
	* app/commands.[ch]: a command callback for the "Help..." menu item.

	* app/gimprc.[ch]: new boolean gimprc variable "use_help".

	* app/info_dialog.[ch]: pass a help function and data to the info
	dialog constructor.

	* app/tools.[ch]: store the tools help page names in the tool info
	structure. Export a special tools_help_func() which shows the help
	page for the active tool.

	* app/[all files calling a dialog constructor]: pass the dialog's
	help page to the constructor.

	Most dialogs are now created by gimp_dialog_new() which also sets
	up the action_area and the WM delete event callback, so I removed
	the resp. code from these files.

	Fixed some minor bugs and did some other stuff but didn't change
	any logic except dialog creation.

	* plug-ins/helpbrowser/helpbrowser.c: don't try to call a running
	help browser and don't install any menu path (all done in
	app/gimphelp.[ch] now).
1999-09-27 17:58:10 +00:00

1193 lines
39 KiB
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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 <math.h>
#include "config.h"
#include "appenv.h"
#include "resize.h"
#include "gimprc.h"
#include "gimpui.h"
#include "libgimp/gimpchainbutton.h"
#include "libgimp/gimplimits.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;
GtkObject *object;
guint object_destroy_handler;
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);
Resize *
resize_widget_new (ResizeType type,
ResizeTarget target,
GtkObject *object,
gint width,
gint height,
gdouble resolution_x,
gdouble resolution_y,
GUnit unit,
gboolean dot_for_dot,
GtkSignalFunc ok_cb,
GtkSignalFunc cancel_cb,
gpointer user_data)
{
Resize *resize;
ResizePrivate *private;
GtkWidget *vbox;
GtkWidget *vbox2;
GtkWidget *table;
GtkWidget *table2;
GtkWidget *hbox;
GtkWidget *hbox2;
GtkWidget *label;
GtkWidget *frame;
GtkWidget *spinbutton;
GtkWidget *alignment;
GtkObject *adjustment;
alignment = NULL;
frame = NULL;
resize = g_new (Resize, 1);
private = g_new (ResizePrivate, 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;
private->old_width = width;
private->old_height = height;
private->old_res_x = resolution_x;
private->old_res_y = resolution_y;
private->object = NULL;
/* Get the image width and height variables, based on the gimage */
if (width > height)
private->ratio = (double) DRAWING_AREA_SIZE / (double) width;
else
private->ratio = (double) DRAWING_AREA_SIZE / (double) height;
private->area_width = (int) (private->ratio * width);
private->area_height = (int) (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 = "dialogs/scale_layer_dialog.html";
frame = gtk_frame_new (_("Size"));
break;
case ResizeImage:
wmclass = "image_scale";
window_title = _("Image Scale");
help_page = "dialogs/scale_image_dialog.html";
frame = gtk_frame_new (_("Pixel Dimensions"));
break;
}
break;
case ResizeWidget:
switch (target)
{
case ResizeLayer:
wmclass = "resize_layer";
window_title = _("Resize Layer");
help_page = "dialogs/resize_layer_dialog.html";
break;
case ResizeImage:
wmclass = "image_resize";
window_title = _("Image Resize");
help_page = "dialogs/resize_image_dialog.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, TRUE, FALSE,
_("Cancel"), cancel_cb,
user_data, NULL, FALSE, TRUE,
NULL);
}
/* handle the image disappearing under our feet */
if (object)
{
const gchar *signame;
signame = (target == ResizeLayer) ? "removed" : "destroy";
private->object = object;
private->object_destroy_handler =
gtk_signal_connect (GTK_OBJECT (object), signame, cancel_cb, user_data);
}
/* the main vbox */
vbox = gtk_vbox_new (FALSE, 4);
gtk_container_set_border_width (GTK_CONTAINER (vbox), 4);
gtk_container_add (GTK_CONTAINER (GTK_DIALOG (resize->resize_shell)->vbox),
vbox);
/* the pixel dimensions frame */
gtk_box_pack_start (GTK_BOX (vbox), frame, FALSE, FALSE, 0);
gtk_widget_show (frame);
vbox2 = gtk_vbox_new (FALSE, 2);
gtk_container_set_border_width (GTK_CONTAINER (vbox2), 2);
gtk_container_add (GTK_CONTAINER (frame), vbox2);
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 (vbox2), 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), 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 */
alignment = 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 (alignment), table2);
gtk_table_attach (GTK_TABLE (table), alignment, 1, 2, 4, 6,
GTK_SHRINK | GTK_FILL, GTK_SHRINK | GTK_FILL, 0, 0);
gtk_widget_show (alignment);
/* 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 (vbox2);
/* the offset frame */
if (type == ResizeWidget)
{
frame = gtk_frame_new (_("Offset"));
gtk_box_pack_start (GTK_BOX (vbox), frame, FALSE, FALSE, 0);
gtk_widget_show (frame);
hbox = gtk_hbox_new (FALSE, 0);
gtk_container_set_border_width (GTK_CONTAINER (hbox), 2);
gtk_container_add (GTK_CONTAINER (frame), hbox);
vbox2 = gtk_vbox_new (FALSE, 2);
gtk_container_set_border_width (GTK_CONTAINER (vbox2), 2);
gtk_box_pack_start (GTK_BOX (hbox), vbox2, TRUE, FALSE, 0);
table = gtk_table_new (2, 2, FALSE);
gtk_table_set_col_spacing (GTK_TABLE (table), 0, 4);
gtk_box_pack_start (GTK_BOX (vbox2), table, FALSE, FALSE, 0);
/* the x and y offset labels */
label = gtk_label_new (_("X:"));
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 (_("Y:"));
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 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_widget_show (spinbutton);
gtk_table_attach (GTK_TABLE (table), private->offset_se, 1, 2, 0, 2,
GTK_SHRINK | GTK_FILL, GTK_SHRINK | GTK_FILL, 0, 0);
gtk_widget_show (private->offset_se);
if (dot_for_dot)
gimp_size_entry_set_unit (GIMP_SIZE_ENTRY (private->offset_se),
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 (table);
/* frame to hold drawing area */
hbox2 = gtk_hbox_new (0, FALSE);
gtk_box_pack_start (GTK_BOX (vbox2), hbox2, FALSE, FALSE, 0);
frame = gtk_frame_new (NULL);
gtk_frame_set_shadow_type (GTK_FRAME (frame), GTK_SHADOW_IN);
gtk_box_pack_start (GTK_BOX (hbox2), frame, TRUE, FALSE, 0);
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 (hbox2);
gtk_widget_show (vbox2);
gtk_widget_show (hbox);
}
/* the resolution stuff */
if ((type == ScaleWidget) && (target == ResizeImage))
{
frame = gtk_frame_new (_("Print Size & Display Unit"));
gtk_box_pack_start (GTK_BOX (vbox), frame, FALSE, FALSE, 0);
gtk_widget_show (frame);
vbox2 = gtk_vbox_new (FALSE, 2);
gtk_container_set_border_width (GTK_CONTAINER (vbox2), 2);
gtk_container_add (GTK_CONTAINER (frame), vbox2);
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 (vbox2), 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 */
alignment = 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 (alignment), spinbutton);
gtk_widget_show (spinbutton);
gtk_table_attach (GTK_TABLE (table), alignment, 1, 2, 0, 1,
GTK_SHRINK | GTK_FILL, GTK_SHRINK | GTK_FILL, 0, 0);
gtk_widget_show (alignment);
alignment = 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 (alignment), private->printsize_se);
gtk_table_attach (GTK_TABLE (table), alignment, 1, 2, 1, 2,
GTK_SHRINK | GTK_FILL, GTK_SHRINK | GTK_FILL, 0, 0);
gtk_widget_show (private->printsize_se);
gtk_widget_show (alignment);
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 (vbox2);
}
gtk_widget_show (vbox);
/* finally, activate the first entry */
gimp_size_entry_grab_focus (GIMP_SIZE_ENTRY (private->size_se));
return resize;
}
void
resize_widget_free (Resize *resize)
{
ResizePrivate *private = resize->private_part;
if (private->object)
gtk_signal_disconnect (GTK_OBJECT (private->object),
private->object_destroy_handler);
gtk_widget_destroy (resize->resize_shell);
g_free (resize->private_part);
g_free (resize);
}
static void
resize_draw (Resize *resize)
{
GtkWidget *widget;
ResizePrivate *private;
int aw, ah;
int x, y;
int 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 = (double) DRAWING_AREA_SIZE / (double) w;
else
private->ratio = (double) DRAWING_AREA_SIZE / (double) h;
aw = (int) (private->ratio * w);
ah = (int) (private->ratio * h);
if (aw != private->area_width || ah != private->area_height)
{
private->area_width = aw;
private->area_height = ah;
gtk_widget_set_usize (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 = BOUNDS (off_x, 0, (resize->width - private->old_width));
else
off_x = BOUNDS (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 = BOUNDS (off_y, 0, (resize->height - private->old_height));
else
off_y = BOUNDS (off_y, (resize->height - private->old_height), 0);
return off_y;
}
static void
orig_labels_update (GtkWidget *widget,
gpointer data)
{
Resize *resize;
ResizePrivate *private;
GUnit unit;
gchar format_buf[16];
gchar buf[32];
static GUnit label_unit = UNIT_PIXEL;
resize = (Resize *) data;
private = (ResizePrivate *) resize->private_part;
unit = gimp_size_entry_get_unit (GIMP_SIZE_ENTRY (widget));
if (unit != UNIT_PERCENT)
label_unit = unit;
if (label_unit) /* unit != UNIT_PIXEL */
{
double 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 == 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 = BOUNDS (height, GIMP_MIN_IMAGE_SIZE, GIMP_MAX_IMAGE_SIZE);
}
else
{
ratio_x = ratio_y;
width = (double) private->old_width * ratio_x;
width = BOUNDS (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 = BOUNDS (private->old_width * ratio_x,
GIMP_MIN_IMAGE_SIZE, GIMP_MAX_IMAGE_SIZE);
height = BOUNDS (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 = BOUNDS (resize->resolution_x * width / print_width,
GIMP_MIN_RESOLUTION, GIMP_MAX_RESOLUTION);
res_y = BOUNDS (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;
}
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