static GeglNode *
gimp_levels_tool_get_operation (GimpImageMapTool *im_tool,
GObject **config)
{
GimpLevelsTool *tool = GIMP_LEVELS_TOOL (im_tool);
GeglNode *node;
node = g_object_new (GEGL_TYPE_NODE,
"operation", "gimp:levels",
NULL);
tool->config = g_object_new (GIMP_TYPE_LEVELS_CONFIG, NULL);
*config = G_OBJECT (tool->config);
g_signal_connect_object (tool->config, "notify",
G_CALLBACK (gimp_levels_tool_config_notify),
G_OBJECT (tool), 0);
gegl_node_set (node,
"config", tool->config,
NULL);
return node;
}
static gboolean
levels_menu_sensitivity (gint value,
gpointer data)
{
GimpLevelsTool *tool = GIMP_LEVELS_TOOL (data);
GimpHistogramChannel channel = value;
switch (channel)
{
case GIMP_HISTOGRAM_VALUE:
return TRUE;
case GIMP_HISTOGRAM_RED:
case GIMP_HISTOGRAM_GREEN:
case GIMP_HISTOGRAM_BLUE:
return tool->color;
case GIMP_HISTOGRAM_ALPHA:
return tool->alpha;
case GIMP_HISTOGRAM_RGB:
return FALSE;
}
return FALSE;
}
static gboolean
gimp_levels_tool_settings_export (GimpImageMapTool *image_map_tool,
const gchar *filename,
GError **error)
{
GimpLevelsTool *tool = GIMP_LEVELS_TOOL (image_map_tool);
if (tool->export_old_format)
{
FILE *file;
gboolean success;
file = g_fopen (filename, "wt");
if (! file)
{
g_set_error (error, G_FILE_ERROR, g_file_error_from_errno (errno),
_("Could not open '%s' for writing: %s"),
gimp_filename_to_utf8 (filename),
g_strerror (errno));
return FALSE;
}
success = gimp_levels_config_save_cruft (tool->config, file, error);
fclose (file);
return success;
}
return GIMP_IMAGE_MAP_TOOL_CLASS (parent_class)->settings_export (image_map_tool,
filename,
error);
}
static gboolean
gimp_levels_tool_settings_save (GimpImageMapTool *image_map_tool,
gpointer fp)
{
GimpLevelsTool *tool = GIMP_LEVELS_TOOL (image_map_tool);
FILE *file = fp;
gint i;
fprintf (file, "# GIMP Levels File\n");
for (i = 0; i < 5; i++)
{
gchar buf[G_ASCII_DTOSTR_BUF_SIZE];
fprintf (file, "%d %d %d %d %s\n",
tool->levels->low_input[i],
tool->levels->high_input[i],
tool->levels->low_output[i],
tool->levels->high_output[i],
g_ascii_formatd (buf, G_ASCII_DTOSTR_BUF_SIZE, "%f",
tool->levels->gamma[i]));
}
return TRUE;
}
static void
gimp_levels_tool_reset (GimpImageMapTool *image_map_tool)
{
GimpLevelsTool *tool = GIMP_LEVELS_TOOL (image_map_tool);
GimpHistogramChannel channel = tool->config->channel;
g_object_freeze_notify (image_map_tool->config);
if (image_map_tool->default_config)
{
gimp_config_copy (GIMP_CONFIG (image_map_tool->default_config),
GIMP_CONFIG (image_map_tool->config),
0);
}
else
{
gimp_config_reset (GIMP_CONFIG (image_map_tool->config));
}
g_object_set (tool->config,
"channel", channel,
NULL);
g_object_thaw_notify (image_map_tool->config);
}
static gboolean
gimp_levels_tool_initialize (GimpTool *tool,
GimpDisplay *display,
GError **error)
{
GimpLevelsTool *l_tool = GIMP_LEVELS_TOOL (tool);
GimpImage *image = gimp_display_get_image (display);
GimpDrawable *drawable = gimp_image_get_active_drawable (image);
gdouble scale_factor;
gdouble step_increment;
gdouble page_increment;
gint digits;
if (! GIMP_TOOL_CLASS (parent_class)->initialize (tool, display, error))
{
return FALSE;
}
gimp_int_combo_box_set_sensitivity (GIMP_INT_COMBO_BOX (l_tool->channel_menu),
levels_menu_sensitivity, drawable, NULL);
gimp_drawable_calculate_histogram (drawable, l_tool->histogram);
gimp_histogram_view_set_histogram (GIMP_HISTOGRAM_VIEW (l_tool->histogram_view),
l_tool->histogram);
if (gimp_drawable_get_component_type (drawable) == GIMP_COMPONENT_TYPE_U8)
{
scale_factor = 255.0;
step_increment = 1.0;
page_increment = 8.0;
digits = 0;
}
else
{
scale_factor = 100;
step_increment = 0.01;
page_increment = 1.0;
digits = 2;
}
gimp_prop_widget_set_factor (l_tool->low_input_spinbutton,
scale_factor, step_increment, page_increment,
digits);
gimp_prop_widget_set_factor (l_tool->high_input_spinbutton,
scale_factor, step_increment, page_increment,
digits);
gimp_prop_widget_set_factor (l_tool->low_output_spinbutton,
scale_factor, step_increment, page_increment,
digits);
gimp_prop_widget_set_factor (l_tool->high_output_spinbutton,
scale_factor, step_increment, page_increment,
digits);
gtk_adjustment_configure (l_tool->gamma_linear,
scale_factor / 2.0,
0, scale_factor, 0.1, 1.0, 0);
return TRUE;
}
static void
gimp_levels_tool_color_picked (GimpColorTool *color_tool,
GimpColorPickState pick_state,
GimpImageType sample_type,
GimpRGB *color,
gint color_index)
{
GimpLevelsTool *tool = GIMP_LEVELS_TOOL (color_tool);
guchar col[5];
guint value;
gimp_rgba_get_uchar (color,
col + RED_PIX,
col + GREEN_PIX,
col + BLUE_PIX,
col + ALPHA_PIX);
value = GPOINTER_TO_UINT (g_object_get_data (G_OBJECT (tool->active_picker),
"pick_value"));
if (value & ALL_CHANNELS && GIMP_IMAGE_TYPE_IS_RGB (sample_type))
{
GimpHistogramChannel channel;
/* first reset the value channel */
switch (value & 0xF)
{
case LOW_INPUT:
tool->levels->low_input[GIMP_HISTOGRAM_VALUE] = 0;
break;
case GAMMA:
tool->levels->gamma[GIMP_HISTOGRAM_VALUE] = 1.0;
break;
case HIGH_INPUT:
tool->levels->high_input[GIMP_HISTOGRAM_VALUE] = 255;
break;
default:
break;
}
/* then adjust all color channels */
for (channel = GIMP_HISTOGRAM_RED;
channel <= GIMP_HISTOGRAM_BLUE;
channel++)
{
levels_input_adjust_by_color (tool->levels,
value, channel, col);
}
}
else
{
levels_input_adjust_by_color (tool->levels,
value, tool->channel, col);
}
levels_update (tool, ALL);
gimp_image_map_tool_preview (GIMP_IMAGE_MAP_TOOL (tool));
}
static void
gimp_levels_tool_reset (GimpImageMapTool *image_map_tool)
{
GimpLevelsTool *tool = GIMP_LEVELS_TOOL (image_map_tool);
levels_init (tool->levels);
levels_update (tool, ALL);
}
static void
gimp_levels_tool_map (GimpImageMapTool *image_map_tool)
{
GimpLevelsTool *tool = GIMP_LEVELS_TOOL (image_map_tool);
gimp_image_map_apply (image_map_tool->image_map,
(GimpImageMapApplyFunc) gimp_lut_process,
tool->lut);
}
static void
gimp_levels_tool_finalize (GObject *object)
{
GimpLevelsTool *tool = GIMP_LEVELS_TOOL (object);
if (tool->histogram)
{
g_object_unref (tool->histogram);
tool->histogram = NULL;
}
G_OBJECT_CLASS (parent_class)->finalize (object);
}
static gboolean
gimp_levels_tool_initialize (GimpTool *tool,
GimpDisplay *display,
GError **error)
{
GimpLevelsTool *l_tool = GIMP_LEVELS_TOOL (tool);
GimpDrawable *drawable = gimp_image_get_active_drawable (display->image);
if (! drawable)
return FALSE;
if (gimp_drawable_is_indexed (drawable))
{
g_set_error (error, 0, 0,
_("Levels does not operate on indexed layers."));
return FALSE;
}
if (! l_tool->hist)
l_tool->hist = gimp_histogram_new ();
levels_init (l_tool->levels);
l_tool->channel = GIMP_HISTOGRAM_VALUE;
l_tool->color = gimp_drawable_is_rgb (drawable);
l_tool->alpha = gimp_drawable_has_alpha (drawable);
if (l_tool->active_picker)
gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (l_tool->active_picker),
FALSE);
GIMP_TOOL_CLASS (parent_class)->initialize (tool, display, error);
gimp_int_combo_box_set_sensitivity (GIMP_INT_COMBO_BOX (l_tool->channel_menu),
levels_menu_sensitivity, l_tool, NULL);
gimp_int_combo_box_set_active (GIMP_INT_COMBO_BOX (l_tool->channel_menu),
l_tool->channel);
/* FIXME: hack */
if (! l_tool->color)
l_tool->channel = (l_tool->channel == GIMP_HISTOGRAM_ALPHA) ? 1 : 0;
levels_update (l_tool, ALL);
gimp_drawable_calculate_histogram (drawable, l_tool->hist);
gimp_histogram_view_set_histogram (GIMP_HISTOGRAM_VIEW (l_tool->hist_view),
l_tool->hist);
return TRUE;
}
static gboolean
gimp_levels_tool_settings_import (GimpImageMapTool *image_map_tool,
const gchar *filename,
GError **error)
{
GimpLevelsTool *tool = GIMP_LEVELS_TOOL (image_map_tool);
FILE *file;
gchar header[64];
file = g_fopen (filename, "rt");
if (! file)
{
g_set_error (error, G_FILE_ERROR, g_file_error_from_errno (errno),
_("Could not open '%s' for reading: %s"),
gimp_filename_to_utf8 (filename),
g_strerror (errno));
return FALSE;
}
if (! fgets (header, sizeof (header), file))
{
g_set_error (error, G_FILE_ERROR, g_file_error_from_errno (errno),
_("Could not read header from '%s': %s"),
gimp_filename_to_utf8 (filename),
g_strerror (errno));
fclose (file);
return FALSE;
}
if (g_str_has_prefix (header, "# GIMP Levels File\n"))
{
gboolean success;
rewind (file);
success = gimp_levels_config_load_cruft (tool->config, file, error);
fclose (file);
return success;
}
fclose (file);
return GIMP_IMAGE_MAP_TOOL_CLASS (parent_class)->settings_import (image_map_tool,
filename,
error);
}
static void
gimp_levels_tool_map (GimpImageMapTool *image_map_tool)
{
GimpLevelsTool *tool = GIMP_LEVELS_TOOL (image_map_tool);
GimpDrawable *drawable = image_map_tool->drawable;
Levels levels;
gimp_levels_config_to_cruft (tool->config, &levels,
gimp_drawable_is_rgb (drawable));
gimp_lut_setup (tool->lut,
(GimpLutFunc) levels_lut_func,
&levels,
gimp_drawable_bytes (drawable));
}
static gboolean
gimp_levels_tool_settings_export (GimpImageMapTool *im_tool,
GOutputStream *output,
GError **error)
{
GimpLevelsTool *tool = GIMP_LEVELS_TOOL (im_tool);
GimpLevelsConfig *config = GIMP_LEVELS_CONFIG (im_tool->config);
if (tool->export_old_format)
return gimp_levels_config_save_cruft (config, output, error);
return GIMP_IMAGE_MAP_TOOL_CLASS (parent_class)->settings_export (im_tool,
output,
error);
}
static void
gimp_levels_tool_finalize (GObject *object)
{
GimpLevelsTool *tool = GIMP_LEVELS_TOOL (object);
gimp_lut_free (tool->lut);
g_slice_free (Levels, tool->levels);
if (tool->hist)
{
gimp_histogram_free (tool->hist);
tool->hist = NULL;
}
G_OBJECT_CLASS (parent_class)->finalize (object);
}
static void
gimp_levels_tool_color_picked (GimpImageMapTool *color_tool,
gpointer identifier,
gdouble x,
gdouble y,
const Babl *sample_format,
const GimpRGB *color)
{
GimpLevelsTool *tool = GIMP_LEVELS_TOOL (color_tool);
guint value = GPOINTER_TO_UINT (identifier);
if (value & PICK_ALL_CHANNELS &&
gimp_babl_format_get_base_type (sample_format) == GIMP_RGB)
{
GimpHistogramChannel channel;
/* first reset the value channel */
switch (value & 0xF)
{
case PICK_LOW_INPUT:
tool->config->low_input[GIMP_HISTOGRAM_VALUE] = 0.0;
break;
case PICK_GAMMA:
tool->config->gamma[GIMP_HISTOGRAM_VALUE] = 1.0;
break;
case PICK_HIGH_INPUT:
tool->config->high_input[GIMP_HISTOGRAM_VALUE] = 1.0;
break;
default:
break;
}
/* then adjust all color channels */
for (channel = GIMP_HISTOGRAM_RED;
channel <= GIMP_HISTOGRAM_BLUE;
channel++)
{
levels_input_adjust_by_color (tool->config,
value, channel, color);
}
}
else
{
levels_input_adjust_by_color (tool->config,
value, tool->config->channel, color);
}
}
static GeglNode *
gimp_levels_tool_get_operation (GimpImageMapTool *im_tool,
GObject **config,
gchar **undo_desc)
{
GimpLevelsTool *tool = GIMP_LEVELS_TOOL (im_tool);
tool->config = g_object_new (GIMP_TYPE_LEVELS_CONFIG, NULL);
g_signal_connect_object (tool->config, "notify",
G_CALLBACK (gimp_levels_tool_config_notify),
G_OBJECT (tool), 0);
*config = G_OBJECT (tool->config);
return gegl_node_new_child (NULL,
"operation", "gimp:levels",
"config", tool->config,
NULL);
}
static gboolean
gimp_levels_tool_initialize (GimpTool *tool,
GimpDisplay *display,
GError **error)
{
GimpLevelsTool *l_tool = GIMP_LEVELS_TOOL (tool);
GimpImage *image = gimp_display_get_image (display);
GimpDrawable *drawable = gimp_image_get_active_drawable (image);
if (! drawable)
return FALSE;
if (gimp_drawable_is_indexed (drawable))
{
g_set_error_literal (error, GIMP_ERROR, GIMP_FAILED,
_("Levels does not operate on indexed layers."));
return FALSE;
}
gimp_config_reset (GIMP_CONFIG (l_tool->config));
if (l_tool->active_picker)
gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (l_tool->active_picker),
FALSE);
if (! GIMP_TOOL_CLASS (parent_class)->initialize (tool, display, error))
{
return FALSE;
}
gimp_int_combo_box_set_sensitivity (GIMP_INT_COMBO_BOX (l_tool->channel_menu),
levels_menu_sensitivity, drawable, NULL);
gimp_drawable_calculate_histogram (drawable, l_tool->histogram);
gimp_histogram_view_set_histogram (GIMP_HISTOGRAM_VIEW (l_tool->histogram_view),
l_tool->histogram);
return TRUE;
}
static void
gimp_levels_tool_dialog (GimpImageMapTool *image_map_tool)
{
GimpLevelsTool *tool = GIMP_LEVELS_TOOL (image_map_tool);
GimpToolOptions *tool_options = GIMP_TOOL_GET_OPTIONS (image_map_tool);
GtkListStore *store;
GtkWidget *vbox;
GtkWidget *vbox2;
GtkWidget *vbox3;
GtkWidget *hbox;
GtkWidget *hbox2;
GtkWidget *label;
GtkWidget *menu;
GtkWidget *frame;
GtkWidget *hbbox;
GtkWidget *button;
GtkWidget *spinbutton;
GtkWidget *bar;
GtkObject *data;
gint border;
vbox = image_map_tool->main_vbox;
/* The option menu for selecting channels */
hbox = gtk_hbox_new (FALSE, 6);
gtk_box_pack_start (GTK_BOX (vbox), hbox, FALSE, FALSE, 0);
gtk_widget_show (hbox);
label = gtk_label_new_with_mnemonic (_("Cha_nnel:"));
gtk_box_pack_start (GTK_BOX (hbox), label, FALSE, FALSE, 0);
gtk_widget_show (label);
store = gimp_enum_store_new_with_range (GIMP_TYPE_HISTOGRAM_CHANNEL,
GIMP_HISTOGRAM_VALUE,
GIMP_HISTOGRAM_ALPHA);
menu = gimp_enum_combo_box_new_with_model (GIMP_ENUM_STORE (store));
g_object_unref (store);
g_signal_connect (menu, "changed",
G_CALLBACK (levels_channel_callback),
tool);
gimp_enum_combo_box_set_stock_prefix (GIMP_ENUM_COMBO_BOX (menu),
"gimp-channel");
gtk_box_pack_start (GTK_BOX (hbox), menu, FALSE, FALSE, 0);
gtk_widget_show (menu);
tool->channel_menu = menu;
gtk_label_set_mnemonic_widget (GTK_LABEL (label), menu);
button = gtk_button_new_with_mnemonic (_("R_eset Channel"));
gtk_box_pack_start (GTK_BOX (hbox), button, FALSE, FALSE, 0);
gtk_widget_show (button);
g_signal_connect (button, "clicked",
G_CALLBACK (levels_channel_reset_callback),
tool);
menu = gimp_prop_enum_stock_box_new (G_OBJECT (tool_options),
"histogram-scale", "gimp-histogram",
0, 0);
gtk_box_pack_end (GTK_BOX (hbox), menu, FALSE, FALSE, 0);
gtk_widget_show (menu);
/* Input levels frame */
frame = gimp_frame_new (_("Input Levels"));
gtk_box_pack_start (GTK_BOX (vbox), frame, TRUE, TRUE, 0);
gtk_widget_show (frame);
vbox2 = gtk_vbox_new (FALSE, 2);
gtk_container_add (GTK_CONTAINER (frame), vbox2);
gtk_widget_show (vbox2);
frame = gtk_frame_new (NULL);
gtk_frame_set_shadow_type (GTK_FRAME (frame), GTK_SHADOW_IN);
gtk_box_pack_start (GTK_BOX (vbox2), frame, TRUE, TRUE, 0);
gtk_widget_show (frame);
tool->hist_view = gimp_histogram_view_new (FALSE);
gtk_container_add (GTK_CONTAINER (frame), tool->hist_view);
gtk_widget_show (GTK_WIDGET (tool->hist_view));
gimp_histogram_options_connect_view (GIMP_HISTOGRAM_OPTIONS (tool_options),
GIMP_HISTOGRAM_VIEW (tool->hist_view));
g_object_get (tool->hist_view, "border-width", &border, NULL);
frame = gtk_frame_new (NULL);
gtk_frame_set_shadow_type (GTK_FRAME (frame), GTK_SHADOW_IN);
gtk_box_pack_start (GTK_BOX (vbox2), frame, FALSE, FALSE, 0);
gtk_widget_show (frame);
tool->input_area = gtk_event_box_new ();
gtk_widget_set_size_request (tool->input_area, -1,
GRADIENT_HEIGHT + CONTROL_HEIGHT);
gtk_widget_add_events (tool->input_area, LEVELS_EVENT_MASK);
gtk_container_add (GTK_CONTAINER (frame), tool->input_area);
gtk_widget_show (tool->input_area);
g_signal_connect (tool->input_area, "event",
G_CALLBACK (levels_input_area_event),
tool);
g_signal_connect_after (tool->input_area, "expose-event",
G_CALLBACK (levels_input_area_expose),
tool);
vbox3 = gtk_vbox_new (FALSE, 0);
gtk_container_add (GTK_CONTAINER (tool->input_area), vbox3);
gtk_widget_show (vbox3);
tool->input_bar = g_object_new (GIMP_TYPE_COLOR_BAR,
"xpad", border,
"ypad", 0,
NULL);
gtk_widget_set_size_request (tool->input_bar, -1, GRADIENT_HEIGHT / 2);
gtk_box_pack_start (GTK_BOX (vbox3), tool->input_bar, FALSE, FALSE, 0);
gtk_widget_show (tool->input_bar);
bar = g_object_new (GIMP_TYPE_COLOR_BAR,
"xpad", border,
"ypad", 0,
NULL);
gtk_widget_set_size_request (bar, -1, GRADIENT_HEIGHT / 2);
gtk_box_pack_start (GTK_BOX (vbox3), bar, FALSE, FALSE, 0);
gtk_widget_show (bar);
/* Horizontal box for input levels spinbuttons */
hbox = gtk_hbox_new (FALSE, 6);
gtk_box_pack_start (GTK_BOX (vbox2), hbox, FALSE, FALSE, 0);
gtk_widget_show (hbox);
/* low input spin */
hbox2 = gtk_hbox_new (FALSE, 2);
gtk_box_pack_start (GTK_BOX (hbox), hbox2, FALSE, FALSE, 0);
gtk_widget_show (hbox2);
button = gimp_levels_tool_color_picker_new (tool, LOW_INPUT);
gtk_box_pack_start (GTK_BOX (hbox2), button, FALSE, FALSE, 0);
gtk_widget_show (button);
spinbutton = gimp_spin_button_new (&data, 0, 0, 255, 1, 10, 10, 0.5, 0);
gtk_box_pack_start (GTK_BOX (hbox2), spinbutton, FALSE, FALSE, 0);
gtk_widget_show (spinbutton);
tool->low_input = GTK_ADJUSTMENT (data);
g_signal_connect (tool->low_input, "value-changed",
G_CALLBACK (levels_low_input_adjustment_update),
tool);
/* input gamma spin */
spinbutton = gimp_spin_button_new (&data, 1, 0.1, 10, 0.01, 0.1, 1, 0.5, 2);
gtk_box_pack_start (GTK_BOX (hbox), spinbutton, TRUE, FALSE, 0);
gimp_help_set_help_data (spinbutton, _("Gamma"), NULL);
gtk_widget_show (spinbutton);
tool->gamma = GTK_ADJUSTMENT (data);
g_signal_connect (tool->gamma, "value-changed",
G_CALLBACK (levels_gamma_adjustment_update),
tool);
/* high input spin */
hbox2 = gtk_hbox_new (FALSE, 2);
gtk_box_pack_end (GTK_BOX (hbox), hbox2, FALSE, FALSE, 0);
gtk_widget_show (hbox2);
button = gimp_levels_tool_color_picker_new (tool, HIGH_INPUT);
gtk_box_pack_start (GTK_BOX (hbox2), button, FALSE, FALSE, 0);
gtk_widget_show (button);
spinbutton = gimp_spin_button_new (&data, 255, 0, 255, 1, 10, 10, 0.5, 0);
gtk_box_pack_start (GTK_BOX (hbox2), spinbutton, FALSE, FALSE, 0);
gtk_widget_show (spinbutton);
tool->high_input = GTK_ADJUSTMENT (data);
g_signal_connect (tool->high_input, "value-changed",
G_CALLBACK (levels_high_input_adjustment_update),
tool);
/* Output levels frame */
frame = gimp_frame_new (_("Output Levels"));
gtk_box_pack_start (GTK_BOX (vbox), frame, FALSE, FALSE, 0);
gtk_widget_show (frame);
vbox2 = gtk_vbox_new (FALSE, 4);
gtk_container_add (GTK_CONTAINER (frame), vbox2);
gtk_widget_show (vbox2);
frame = gtk_frame_new (NULL);
gtk_frame_set_shadow_type (GTK_FRAME (frame), GTK_SHADOW_IN);
gtk_box_pack_start (GTK_BOX (vbox2), frame, FALSE, FALSE, 0);
gtk_widget_show (frame);
tool->output_area = gtk_event_box_new ();
gtk_widget_set_size_request (tool->output_area, -1,
GRADIENT_HEIGHT + CONTROL_HEIGHT);
gtk_widget_add_events (bar, LEVELS_EVENT_MASK);
gtk_container_add (GTK_CONTAINER (frame), tool->output_area);
gtk_widget_show (tool->output_area);
g_signal_connect (tool->output_area, "event",
G_CALLBACK (levels_output_area_event),
tool);
g_signal_connect_after (tool->output_area, "expose-event",
G_CALLBACK (levels_output_area_expose),
tool);
vbox3 = gtk_vbox_new (FALSE, 0);
gtk_container_add (GTK_CONTAINER (tool->output_area), vbox3);
gtk_widget_show (vbox3);
tool->output_bar = g_object_new (GIMP_TYPE_COLOR_BAR,
"xpad", border,
"ypad", 0,
NULL);
gtk_widget_set_size_request (tool->output_bar, -1, GRADIENT_HEIGHT);
gtk_box_pack_start (GTK_BOX (vbox3), tool->output_bar, FALSE, FALSE, 0);
gtk_widget_show (tool->output_bar);
/* Horizontal box for levels spin widgets */
hbox = gtk_hbox_new (FALSE, 6);
gtk_box_pack_start (GTK_BOX (vbox2), hbox, FALSE, FALSE, 0);
gtk_widget_show (hbox);
/* low output spin */
spinbutton = gimp_spin_button_new (&data, 0, 0, 255, 1, 10, 10, 0.5, 0);
gtk_box_pack_start (GTK_BOX (hbox), spinbutton, FALSE, FALSE, 0);
gtk_widget_show (spinbutton);
tool->low_output = GTK_ADJUSTMENT (data);
g_signal_connect (tool->low_output, "value-changed",
G_CALLBACK (levels_low_output_adjustment_update),
tool);
/* high output spin */
spinbutton = gimp_spin_button_new (&data, 255, 0, 255, 1, 10, 10, 0.5, 0);
gtk_box_pack_end (GTK_BOX (hbox), spinbutton, FALSE, FALSE, 0);
gtk_widget_show (spinbutton);
tool->high_output = GTK_ADJUSTMENT (data);
g_signal_connect (tool->high_output, "value-changed",
G_CALLBACK (levels_high_output_adjustment_update),
tool);
frame = gimp_frame_new (_("All Channels"));
gtk_box_pack_end (GTK_BOX (vbox), frame, FALSE, FALSE, 0);
gtk_widget_show (frame);
hbox = gtk_hbox_new (FALSE, 0);
gtk_container_add (GTK_CONTAINER (frame), hbox);
gtk_widget_show (hbox);
hbbox = gtk_hbutton_box_new ();
gtk_box_set_spacing (GTK_BOX (hbbox), 4);
gtk_box_pack_start (GTK_BOX (hbox), hbbox, FALSE, FALSE, 0);
gtk_widget_show (hbbox);
gtk_box_pack_start (GTK_BOX (hbbox), image_map_tool->load_button,
FALSE, FALSE, 0);
gtk_widget_show (image_map_tool->load_button);
gtk_box_pack_start (GTK_BOX (hbbox), image_map_tool->save_button,
FALSE, FALSE, 0);
gtk_widget_show (image_map_tool->save_button);
hbbox = gtk_hbox_new (FALSE, 6);
gtk_box_pack_end (GTK_BOX (hbox), hbbox, FALSE, FALSE, 0);
gtk_widget_show (hbbox);
button = gtk_button_new_with_mnemonic (_("_Auto"));
gtk_box_pack_start (GTK_BOX (hbbox), button, FALSE, FALSE, 0);
gimp_help_set_help_data (button, _("Adjust levels automatically"), NULL);
gtk_widget_show (button);
g_signal_connect (button, "clicked",
G_CALLBACK (levels_stretch_callback),
tool);
button = gimp_levels_tool_color_picker_new (tool,
LOW_INPUT | ALL_CHANNELS);
gtk_box_pack_start (GTK_BOX (hbbox), button, FALSE, FALSE, 0);
gtk_widget_show (button);
button = gimp_levels_tool_color_picker_new (tool, GAMMA | ALL_CHANNELS);
gtk_box_pack_start (GTK_BOX (hbbox), button, FALSE, FALSE, 0);
gtk_widget_show (button);
button = gimp_levels_tool_color_picker_new (tool,
HIGH_INPUT | ALL_CHANNELS);
gtk_box_pack_start (GTK_BOX (hbbox), button, FALSE, FALSE, 0);
gtk_widget_show (button);
g_signal_connect (image_map_tool->shell, "unmap",
G_CALLBACK (gimp_levels_tool_dialog_unmap),
tool);
}
static gboolean
gimp_levels_tool_settings_load (GimpImageMapTool *image_map_tool,
gpointer fp,
GError **error)
{
GimpLevelsTool *tool = GIMP_LEVELS_TOOL (image_map_tool);
FILE *file = fp;
gint low_input[5];
gint high_input[5];
gint low_output[5];
gint high_output[5];
gdouble gamma[5];
gint i, fields;
gchar buf[50];
gchar *nptr;
if (! fgets (buf, sizeof (buf), file) ||
strcmp (buf, "# GIMP Levels File\n") != 0)
{
g_set_error (error, GIMP_CONFIG_ERROR, GIMP_CONFIG_ERROR_PARSE,
_("not a GIMP Levels file"));
return FALSE;
}
for (i = 0; i < 5; i++)
{
fields = fscanf (file, "%d %d %d %d ",
&low_input[i],
&high_input[i],
&low_output[i],
&high_output[i]);
if (fields != 4)
goto error;
if (! fgets (buf, 50, file))
goto error;
gamma[i] = g_ascii_strtod (buf, &nptr);
if (buf == nptr || errno == ERANGE)
goto error;
}
for (i = 0; i < 5; i++)
{
tool->levels->low_input[i] = low_input[i];
tool->levels->high_input[i] = high_input[i];
tool->levels->low_output[i] = low_output[i];
tool->levels->high_output[i] = high_output[i];
tool->levels->gamma[i] = gamma[i];
}
levels_update (tool, ALL);
return TRUE;
error:
g_set_error (error, GIMP_CONFIG_ERROR, GIMP_CONFIG_ERROR_PARSE,
_("parse error"));
return FALSE;
}
static void
gimp_levels_tool_dialog (GimpImageMapTool *image_map_tool)
{
GimpLevelsTool *tool = GIMP_LEVELS_TOOL (image_map_tool);
GimpToolOptions *tool_options = GIMP_TOOL_GET_OPTIONS (image_map_tool);
GimpLevelsConfig *config = tool->config;
GtkListStore *store;
GtkSizeGroup *label_group;
GtkWidget *main_vbox;
GtkWidget *vbox;
GtkWidget *vbox2;
GtkWidget *vbox3;
GtkWidget *hbox;
GtkWidget *hbox2;
GtkWidget *label;
GtkWidget *menu;
GtkWidget *frame;
GtkWidget *hbbox;
GtkWidget *button;
GtkWidget *spinbutton;
GtkAdjustment *adjustment;
GtkWidget *bar;
GtkWidget *handle_bar;
gint border;
g_signal_connect (image_map_tool->settings_box, "file-dialog-setup",
G_CALLBACK (gimp_levels_tool_export_setup),
image_map_tool);
main_vbox = gimp_image_map_tool_dialog_get_vbox (image_map_tool);
label_group = gimp_image_map_tool_dialog_get_label_group (image_map_tool);
/* The option menu for selecting channels */
hbox = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 6);
gtk_box_pack_start (GTK_BOX (main_vbox), hbox, FALSE, FALSE, 0);
gtk_widget_show (hbox);
label = gtk_label_new_with_mnemonic (_("Cha_nnel:"));
gtk_box_pack_start (GTK_BOX (hbox), label, FALSE, FALSE, 0);
gtk_widget_show (label);
gtk_size_group_add_widget (label_group, label);
store = gimp_enum_store_new_with_range (GIMP_TYPE_HISTOGRAM_CHANNEL,
GIMP_HISTOGRAM_VALUE,
GIMP_HISTOGRAM_ALPHA);
menu = gimp_enum_combo_box_new_with_model (GIMP_ENUM_STORE (store));
g_object_unref (store);
g_signal_connect (menu, "changed",
G_CALLBACK (levels_channel_callback),
tool);
gimp_enum_combo_box_set_stock_prefix (GIMP_ENUM_COMBO_BOX (menu),
"gimp-channel");
gtk_box_pack_start (GTK_BOX (hbox), menu, FALSE, FALSE, 0);
gtk_widget_show (menu);
tool->channel_menu = menu;
gtk_label_set_mnemonic_widget (GTK_LABEL (label), menu);
button = gtk_button_new_with_mnemonic (_("R_eset Channel"));
gtk_box_pack_start (GTK_BOX (hbox), button, FALSE, FALSE, 0);
gtk_widget_show (button);
g_signal_connect (button, "clicked",
G_CALLBACK (levels_channel_reset_callback),
tool);
menu = gimp_prop_enum_stock_box_new (G_OBJECT (tool_options),
"histogram-scale", "gimp-histogram",
0, 0);
gtk_box_pack_end (GTK_BOX (hbox), menu, FALSE, FALSE, 0);
gtk_widget_show (menu);
/* Input levels frame */
frame = gimp_frame_new (_("Input Levels"));
gtk_box_pack_start (GTK_BOX (main_vbox), frame, TRUE, TRUE, 0);
gtk_widget_show (frame);
vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 2);
gtk_container_add (GTK_CONTAINER (frame), vbox);
gtk_widget_show (vbox);
frame = gtk_frame_new (NULL);
gtk_frame_set_shadow_type (GTK_FRAME (frame), GTK_SHADOW_IN);
gtk_box_pack_start (GTK_BOX (vbox), frame, TRUE, TRUE, 0);
gtk_widget_show (frame);
vbox2 = gtk_box_new (GTK_ORIENTATION_VERTICAL, 0);
gtk_container_add (GTK_CONTAINER (frame), vbox2);
gtk_widget_show (vbox2);
tool->histogram_view = gimp_histogram_view_new (FALSE);
gtk_box_pack_start (GTK_BOX (vbox2), tool->histogram_view, TRUE, TRUE, 0);
gtk_widget_show (GTK_WIDGET (tool->histogram_view));
gimp_histogram_options_connect_view (GIMP_HISTOGRAM_OPTIONS (tool_options),
GIMP_HISTOGRAM_VIEW (tool->histogram_view));
g_object_get (tool->histogram_view, "border-width", &border, NULL);
vbox3 = gtk_box_new (GTK_ORIENTATION_VERTICAL, 0);
gtk_container_set_border_width (GTK_CONTAINER (vbox3), border);
gtk_box_pack_start (GTK_BOX (vbox2), vbox3, FALSE, FALSE, 0);
gtk_widget_show (vbox3);
tool->input_bar = g_object_new (GIMP_TYPE_COLOR_BAR, NULL);
gtk_widget_set_size_request (tool->input_bar, -1, GRADIENT_HEIGHT / 2);
gtk_box_pack_start (GTK_BOX (vbox3), tool->input_bar, FALSE, FALSE, 0);
gtk_widget_show (tool->input_bar);
bar = g_object_new (GIMP_TYPE_COLOR_BAR, NULL);
gtk_widget_set_size_request (bar, -1, GRADIENT_HEIGHT / 2);
gtk_box_pack_start (GTK_BOX (vbox3), bar, FALSE, FALSE, 0);
gtk_widget_show (bar);
handle_bar = g_object_new (GIMP_TYPE_HANDLE_BAR, NULL);
gtk_widget_set_size_request (handle_bar, -1, CONTROL_HEIGHT);
gtk_box_pack_start (GTK_BOX (vbox3), handle_bar, FALSE, FALSE, 0);
gtk_widget_show (handle_bar);
gimp_handle_bar_connect_events (GIMP_HANDLE_BAR (handle_bar),
tool->input_bar);
gimp_handle_bar_connect_events (GIMP_HANDLE_BAR (handle_bar),
bar);
/* Horizontal box for input levels spinbuttons */
hbox = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 6);
gtk_box_pack_start (GTK_BOX (vbox), hbox, FALSE, FALSE, 0);
gtk_widget_show (hbox);
/* low input spin */
hbox2 = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 2);
gtk_box_pack_start (GTK_BOX (hbox), hbox2, FALSE, FALSE, 0);
gtk_widget_show (hbox2);
button = gimp_levels_tool_color_picker_new (tool, PICK_LOW_INPUT);
gtk_box_pack_start (GTK_BOX (hbox2), button, FALSE, FALSE, 0);
gtk_widget_show (button);
tool->low_input_spinbutton = spinbutton =
gimp_prop_spin_button_new (image_map_tool->config, "low-input",
0.01, 0.1, 1);
gtk_box_pack_start (GTK_BOX (hbox2), spinbutton, FALSE, FALSE, 0);
gtk_widget_show (spinbutton);
tool->low_input = gtk_spin_button_get_adjustment (GTK_SPIN_BUTTON (spinbutton));
gimp_handle_bar_set_adjustment (GIMP_HANDLE_BAR (handle_bar), 0,
tool->low_input);
/* input gamma spin */
spinbutton = gimp_prop_spin_button_new (image_map_tool->config, "gamma",
0.01, 0.1, 2);
gtk_box_pack_start (GTK_BOX (hbox), spinbutton, TRUE, FALSE, 0);
gimp_help_set_help_data (spinbutton, _("Gamma"), NULL);
gtk_widget_show (spinbutton);
tool->gamma = gtk_spin_button_get_adjustment (GTK_SPIN_BUTTON (spinbutton));
tool->gamma_linear = GTK_ADJUSTMENT (gtk_adjustment_new (127, 0, 255,
0.1, 1.0, 0.0));
g_signal_connect (tool->gamma_linear, "value-changed",
G_CALLBACK (levels_linear_gamma_changed),
tool);
gimp_handle_bar_set_adjustment (GIMP_HANDLE_BAR (handle_bar), 1,
tool->gamma_linear);
g_object_unref (tool->gamma_linear);
/* high input spin */
hbox2 = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 2);
gtk_box_pack_end (GTK_BOX (hbox), hbox2, FALSE, FALSE, 0);
gtk_widget_show (hbox2);
button = gimp_levels_tool_color_picker_new (tool, PICK_HIGH_INPUT);
gtk_box_pack_start (GTK_BOX (hbox2), button, FALSE, FALSE, 0);
gtk_widget_show (button);
spinbutton = gimp_prop_spin_button_new (image_map_tool->config, "high-input",
0.01, 0.1, 1);
gtk_box_pack_start (GTK_BOX (hbox2), spinbutton, FALSE, FALSE, 0);
gtk_widget_show (spinbutton);
tool->high_input_spinbutton = spinbutton;
tool->high_input = gtk_spin_button_get_adjustment (GTK_SPIN_BUTTON (spinbutton));
gimp_handle_bar_set_adjustment (GIMP_HANDLE_BAR (handle_bar), 2,
tool->high_input);
/* Output levels frame */
frame = gimp_frame_new (_("Output Levels"));
gtk_box_pack_start (GTK_BOX (main_vbox), frame, FALSE, FALSE, 0);
gtk_widget_show (frame);
vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 4);
gtk_container_add (GTK_CONTAINER (frame), vbox);
gtk_widget_show (vbox);
frame = gtk_frame_new (NULL);
gtk_frame_set_shadow_type (GTK_FRAME (frame), GTK_SHADOW_IN);
gtk_box_pack_start (GTK_BOX (vbox), frame, FALSE, FALSE, 0);
gtk_widget_show (frame);
vbox2 = gtk_box_new (GTK_ORIENTATION_VERTICAL, 0);
gtk_container_set_border_width (GTK_CONTAINER (vbox2), border);
gtk_container_add (GTK_CONTAINER (frame), vbox2);
gtk_widget_show (vbox2);
tool->output_bar = g_object_new (GIMP_TYPE_COLOR_BAR, NULL);
gtk_widget_set_size_request (tool->output_bar, -1, GRADIENT_HEIGHT);
gtk_box_pack_start (GTK_BOX (vbox2), tool->output_bar, FALSE, FALSE, 0);
gtk_widget_show (tool->output_bar);
handle_bar = g_object_new (GIMP_TYPE_HANDLE_BAR, NULL);
gtk_widget_set_size_request (handle_bar, -1, CONTROL_HEIGHT);
gtk_box_pack_start (GTK_BOX (vbox2), handle_bar, FALSE, FALSE, 0);
gtk_widget_show (handle_bar);
gimp_handle_bar_connect_events (GIMP_HANDLE_BAR (handle_bar),
tool->output_bar);
/* Horizontal box for levels spin widgets */
hbox = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 6);
gtk_box_pack_start (GTK_BOX (vbox), hbox, FALSE, FALSE, 0);
gtk_widget_show (hbox);
/* low output spin */
tool->low_output_spinbutton = spinbutton =
gimp_prop_spin_button_new (image_map_tool->config, "low-output",
0.01, 0.1, 1);
gtk_box_pack_start (GTK_BOX (hbox), spinbutton, FALSE, FALSE, 0);
gtk_widget_show (spinbutton);
adjustment = gtk_spin_button_get_adjustment (GTK_SPIN_BUTTON (spinbutton));
gimp_handle_bar_set_adjustment (GIMP_HANDLE_BAR (handle_bar), 0, adjustment);
/* high output spin */
tool->high_output_spinbutton = spinbutton =
gimp_prop_spin_button_new (image_map_tool->config, "high-output",
0.01, 0.1, 1);
gtk_box_pack_end (GTK_BOX (hbox), spinbutton, FALSE, FALSE, 0);
gtk_widget_show (spinbutton);
adjustment = gtk_spin_button_get_adjustment (GTK_SPIN_BUTTON (spinbutton));
gimp_handle_bar_set_adjustment (GIMP_HANDLE_BAR (handle_bar), 2, adjustment);
/* all channels frame */
frame = gimp_frame_new (_("All Channels"));
gtk_box_pack_start (GTK_BOX (main_vbox), frame, FALSE, FALSE, 0);
gtk_widget_show (frame);
hbox = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 6);
gtk_container_add (GTK_CONTAINER (frame), hbox);
gtk_widget_show (hbox);
hbbox = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 6);
gtk_box_pack_end (GTK_BOX (hbox), hbbox, FALSE, FALSE, 0);
gtk_widget_show (hbbox);
button = gtk_button_new_with_mnemonic (_("_Auto"));
gtk_box_pack_start (GTK_BOX (hbbox), button, FALSE, FALSE, 0);
gimp_help_set_help_data (button, _("Adjust levels automatically"), NULL);
gtk_widget_show (button);
g_signal_connect (button, "clicked",
G_CALLBACK (levels_stretch_callback),
tool);
button = gimp_levels_tool_color_picker_new (tool,
PICK_LOW_INPUT | PICK_ALL_CHANNELS);
gtk_box_pack_start (GTK_BOX (hbbox), button, FALSE, FALSE, 0);
gtk_widget_show (button);
button = gimp_levels_tool_color_picker_new (tool,
PICK_GAMMA | PICK_ALL_CHANNELS);
gtk_box_pack_start (GTK_BOX (hbbox), button, FALSE, FALSE, 0);
gtk_widget_show (button);
button = gimp_levels_tool_color_picker_new (tool,
PICK_HIGH_INPUT | PICK_ALL_CHANNELS);
gtk_box_pack_start (GTK_BOX (hbbox), button, FALSE, FALSE, 0);
gtk_widget_show (button);
button = gimp_stock_button_new (GIMP_STOCK_TOOL_CURVES,
_("Edit these Settings as Curves"));
gtk_box_pack_start (GTK_BOX (main_vbox), button, FALSE, FALSE, 0);
gtk_widget_show (button);
g_signal_connect (button, "clicked",
G_CALLBACK (levels_to_curves_callback),
tool);
gimp_int_combo_box_set_active (GIMP_INT_COMBO_BOX (tool->channel_menu),
config->channel);
}
