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sane-project-frontends/libgtk/gtk3gamma.c

433 wiersze
11 KiB
C
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/* GTK - The GIMP Toolkit
* Copyright (C) 1997 David Mosberger
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
/*
* Modified by the GTK+ Team and others 1997-2000. See the AUTHORS
* file for a list of people on the GTK+ Team. See the ChangeLog
* files for a list of changes. These files are distributed with
* GTK+ at ftp://ftp.gtk.org/pub/gtk/.
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <math.h>
#include <gtk/gtk.h>
#include <string.h>
#include <stdlib.h>
#include <stdio.h>
#include "gtk3gamma.h"
/* forward declarations: */
static void gtk3_gamma_curve_destroy (GtkWidget *object);
static void curve_type_changed_callback (GtkWidget *w, gpointer data);
static void button_realize_callback (GtkWidget *w);
static void button_toggled_callback (GtkWidget *w, gpointer data);
static void button_clicked_callback (GtkWidget *w, gpointer data);
/* XPM */
static const char * spline_xpm[] = {
"16 16 5 1",
" c None",
". c #000000",
"+ c #824141",
"@ c #FF0000",
"# c #7F7F7F",
" ..",
" +.",
" @ ",
" @ ",
" @ ",
" #.# @ ",
" ... @ ",
" +.+ @ ",
" @ @ @ ",
" @ @ @ ",
" @ @ @ ",
" @ @.+ ",
" @ ... ",
" @ #.# ",
".+ ",
".. "};
/* XPM */
static const char * lineart_xpm[] = {
"16 16 4 1",
" c None",
". c #000000",
"+ c #FF0000",
"@ c #BC2D2D",
" ..",
" ++++++.",
" ++ ",
" .@ ",
" ... ",
" @. ",
" + ",
" + ",
" + ",
" + ",
" + ",
" + ",
" + ",
" + ",
".@ ",
".. "};
/* XPM */
static const char * free_xpm[] = {
"16 16 2 1",
" c None",
". c #FF0000",
" ",
" ",
" . ",
" . ",
" . ",
" . ",
" . ",
" . ",
" . ",
" . ",
" . . .....",
" . . ",
" . . ",
" . . ",
" . . ",
". "};
/* XPM */
static const char * gamma_xpm[] = {
"16 16 10 1",
" c None",
". c #000000",
"+ c #5E5E5E",
"@ c #8C8C8C",
"# c #464646",
"$ c #171717",
"% c #BBBBBB",
"& c #757575",
"* c #A4A4A4",
"= c #2F2F2F",
" ",
" ",
" ",
" .+ @.@ ",
" #$% &$* ",
" &@ ## ",
" . .@ ",
" # # ",
" #$@ ",
" *. ",
" &+ ",
" =. ",
" .. ",
" .= ",
" ",
" "};
/* XPM */
static const char * reset_xpm[] = {
"16 16 4 1",
" c None",
". c #000000",
"+ c #824141",
"@ c #FF0000",
" ..",
" +.",
" @ ",
" @ ",
" @ ",
" @ ",
" @ ",
" @ ",
" @ ",
" @ ",
" @ ",
" @ ",
" @ ",
" @ ",
".+ ",
".. "};
static const gchar ** button_images[] = {
spline_xpm,
lineart_xpm,
free_xpm,
gamma_xpm,
reset_xpm
};
enum
{
LINEAR = 0,
SPLINE,
FREE,
GAMMA,
RESET,
NUM_XPMS
};
G_DEFINE_TYPE (Gtk3GammaCurve, gtk3_gamma_curve, GTK_TYPE_BOX)
static void
gtk3_gamma_curve_class_init (Gtk3GammaCurveClass *class)
{
GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (class);
widget_class->destroy = gtk3_gamma_curve_destroy;
}
static void
gtk3_gamma_curve_init (Gtk3GammaCurve *curve)
{
GtkWidget *image = NULL;
GdkPixbuf *pixbuf = NULL;
GtkWidget *vbox;
int i;
gtk_orientable_set_orientation (GTK_ORIENTABLE (curve), GTK_ORIENTATION_VERTICAL);
curve->gamma = 1.0;
curve->table = gtk_grid_new ();
gtk_grid_set_column_homogeneous (GTK_GRID (curve->table), FALSE);
gtk_grid_set_row_homogeneous (GTK_GRID (curve->table), FALSE);
gtk_container_add (GTK_CONTAINER (curve), curve->table);
curve->curve = gtk3_curve_new ();
g_signal_connect (curve->curve, "curve-type-changed",
G_CALLBACK (curve_type_changed_callback), curve);
gtk_grid_attach (GTK_GRID (curve->table), curve->curve, 0, 0 , 1, 1);
vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, /* spacing */ 3);
gtk_box_set_homogeneous (GTK_BOX (vbox), FALSE);
gtk_grid_attach (GTK_GRID (curve->table), vbox, 1, 0 , 1, 1);
/* toggle buttons: */
for (i = 0; i < 3; ++i)
{
curve->button[i] = gtk_toggle_button_new ();
pixbuf = gdk_pixbuf_new_from_xpm_data(button_images[i]);
image = gtk_image_new_from_pixbuf(pixbuf);
gtk_button_set_image (GTK_BUTTON (curve->button[i]), image);
g_object_set_data (G_OBJECT (curve->button[i]), "_Gtk3GammaCurveIndex",
GINT_TO_POINTER (i));
gtk_container_add (GTK_CONTAINER (vbox), curve->button[i]);
g_signal_connect (G_OBJECT (curve->button[i]), "toggled",
G_CALLBACK (button_toggled_callback), curve);
gtk_widget_show (curve->button[i]);
}
/* push buttons: */
for (i = 3; i < 5; ++i)
{
curve->button[i] = gtk_button_new ();
pixbuf = gdk_pixbuf_new_from_xpm_data(button_images[i]);
image = gtk_image_new_from_pixbuf(pixbuf);
gtk_button_set_image (GTK_BUTTON (curve->button[i]), image);
g_object_set_data (G_OBJECT (curve->button[i]), "_Gtk3GammaCurveIndex",
GINT_TO_POINTER (i));
gtk_container_add (GTK_CONTAINER (vbox), curve->button[i]);
g_signal_connect (G_OBJECT (curve->button[i]), "clicked",
G_CALLBACK (button_clicked_callback), curve);
gtk_widget_show (curve->button[i]);
}
gtk_widget_show (vbox);
gtk_widget_show (curve->table);
gtk_widget_show (curve->curve);
}
static void
button_toggled_callback (GtkWidget *w, gpointer data)
{
Gtk3GammaCurve *c = data;
Gtk3CurveType type;
int active, i;
if (!gtk_toggle_button_get_active (GTK_TOGGLE_BUTTON (w)))
return;
active = GPOINTER_TO_INT (g_object_get_data (G_OBJECT (w), "_Gtk3GammaCurveIndex"));
for (i = 0; i < 3; ++i)
if ((i != active) && gtk_toggle_button_get_active (GTK_TOGGLE_BUTTON (c->button[i])))
break;
if (i < 3)
gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (c->button[i]), FALSE);
switch (active)
{
case 0: type = GTK3_CURVE_TYPE_SPLINE; break;
case 1: type = GTK3_CURVE_TYPE_LINEAR; break;
default: type = GTK3_CURVE_TYPE_FREE; break;
}
gtk3_curve_set_curve_type (c->curve, type);
}
static void
gamma_cancel_callback (GtkWidget *w, gpointer data)
{
Gtk3GammaCurve *c = data;
gtk_widget_destroy (c->gamma_dialog);
c->gamma_dialog = NULL;
}
static void
gamma_response_callback (GtkWidget *w,
gint response_id,
gpointer data)
{
if (response_id == GTK_RESPONSE_OK)
{
Gtk3GammaCurve *c = data;
const gchar *start;
gchar *end;
gfloat v;
start = gtk_entry_get_text (GTK_ENTRY (c->gamma_text));
// GTK 4 => start = gtk_editable_get_text (GTK_EDITABLE (c->gamma_text));
if (start)
{
v = g_strtod (start, &end);
if (end > start && v > 0.0)
c->gamma = v;
}
gtk3_curve_set_gamma (c->curve, c->gamma);
}
gamma_cancel_callback (w, data);
}
static void
button_clicked_callback (GtkWidget *w, gpointer data)
{
Gtk3GammaCurve *c = data;
int active;
active = GPOINTER_TO_INT (g_object_get_data (G_OBJECT (w), "_Gtk3GammaCurveIndex"));
if (active == 3)
{
/* set gamma */
if (c->gamma_dialog)
return;
else
{
GtkWidget *vbox, *hbox, *label;
gchar buf[64];
c->gamma_dialog = gtk_dialog_new_with_buttons ("Gamma",
GTK_WINDOW (w),
GTK_DIALOG_DESTROY_WITH_PARENT,
"Ok", GTK_RESPONSE_OK,
"Cancel", GTK_RESPONSE_CANCEL,
NULL);
g_object_add_weak_pointer (G_OBJECT (c->gamma_dialog),
(gpointer *)&c->gamma_dialog);
vbox =gtk_dialog_get_content_area (GTK_DIALOG (c->gamma_dialog));
hbox = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, /* spacing */ 0);
gtk_box_set_homogeneous (GTK_BOX (hbox), FALSE);
gtk_box_pack_start (GTK_BOX (vbox), hbox, TRUE, TRUE, 2);
// GTK4 => gtk_box_append (GTK_BOX (vbox), hbox);
gtk_widget_show (hbox);
label = gtk_label_new_with_mnemonic ("_Gamma value");
gtk_box_pack_start (GTK_BOX (hbox), label, FALSE, FALSE, 2);
// GTK4 => gtk_box_append (GTK_BOX (hbox), label);
gtk_widget_show (label);
sprintf (buf, "%g", c->gamma);
c->gamma_text = gtk_entry_new ();
gtk_label_set_mnemonic_widget (GTK_LABEL (label), c->gamma_text);
gtk_entry_set_text (GTK_ENTRY (c->gamma_text), buf);
// GTK4 => gtk_editable_set_text (GTK_EDITABLE (c->gamma_text), buf);
gtk_box_pack_start (GTK_BOX (hbox), c->gamma_text, TRUE, TRUE, 2);
// GTK4 => gtk_box_append (GTK_BOX (hbox), c->gamma_text);
gtk_widget_show (c->gamma_text);
/* fill in action area: */
g_signal_connect (c->gamma_dialog,
"response",
G_CALLBACK (gamma_response_callback),
c);
gtk_widget_show (c->gamma_dialog);
}
}
else
{
/* reset */
gtk3_curve_reset (c->curve);
}
}
static void
curve_type_changed_callback (GtkWidget *w, gpointer data)
{
Gtk3GammaCurve *c = data;
Gtk3CurveType new_type;
int active;
new_type = gtk3_curve_get_curve_type (w);
switch (new_type)
{
case GTK3_CURVE_TYPE_SPLINE: active = 0; break;
case GTK3_CURVE_TYPE_LINEAR: active = 1; break;
default: active = 2; break;
}
if (!gtk_toggle_button_get_active (GTK_TOGGLE_BUTTON (c->button[active])))
gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (c->button[active]), TRUE);
}
GtkWidget*
gtk3_gamma_curve_new (void)
{
return g_object_new (GTK3_TYPE_GAMMA_CURVE, NULL);
}
static void
gtk3_gamma_curve_destroy (GtkWidget *object)
{
Gtk3GammaCurve *c = GTK3_GAMMA_CURVE (object);
if (c->gamma_dialog)
gtk_widget_destroy (c->gamma_dialog);
// G_OBJECT_CLASS (gtk3_gamma_curve_parent_class)->destroy (object);
}
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