static gboolean
gimp_curves_config_equal (GimpConfig *a,
GimpConfig *b)
{
GimpCurvesConfig *config_a = GIMP_CURVES_CONFIG (a);
GimpCurvesConfig *config_b = GIMP_CURVES_CONFIG (b);
GimpHistogramChannel channel;
for (channel = GIMP_HISTOGRAM_VALUE;
channel <= GIMP_HISTOGRAM_ALPHA;
channel++)
{
GimpCurve *curve_a = config_a->curve[channel];
GimpCurve *curve_b = config_b->curve[channel];
if (curve_a && curve_b)
{
if (! gimp_config_is_equal_to (GIMP_CONFIG (curve_a),
GIMP_CONFIG (curve_b)))
return FALSE;
}
else if (curve_a || curve_b)
{
return FALSE;
}
}
/* don't compare "channel" */
return TRUE;
}
static void
gimp_curves_tool_reset (GimpImageMapTool *im_tool)
{
GimpCurvesConfig *config = GIMP_CURVES_CONFIG (im_tool->config);
GimpCurvesConfig *default_config;
GimpHistogramChannel channel;
default_config = GIMP_CURVES_CONFIG (im_tool->default_config);
for (channel = GIMP_HISTOGRAM_VALUE;
channel <= GIMP_HISTOGRAM_ALPHA;
channel++)
{
if (default_config)
{
GimpCurveType curve_type = config->curve[channel]->curve_type;
g_object_freeze_notify (G_OBJECT (config->curve[channel]));
gimp_config_copy (GIMP_CONFIG (default_config->curve[channel]),
GIMP_CONFIG (config->curve[channel]),
0);
g_object_set (config->curve[channel],
"curve-type", curve_type,
NULL);
g_object_thaw_notify (G_OBJECT (config->curve[channel]));
}
else
{
gimp_curve_reset (config->curve[channel], FALSE);
}
}
}
static gboolean
gimp_curves_config_serialize (GimpConfig *config,
GimpConfigWriter *writer,
gpointer data)
{
GimpCurvesConfig *c_config = GIMP_CURVES_CONFIG (config);
GimpHistogramChannel channel;
GimpHistogramChannel old_channel;
gboolean success = TRUE;
old_channel = c_config->channel;
for (channel = GIMP_HISTOGRAM_VALUE;
channel <= GIMP_HISTOGRAM_ALPHA;
channel++)
{
c_config->channel = channel;
success = gimp_config_serialize_properties (config, writer);
if (! success)
break;
}
c_config->channel = old_channel;
return success;
}
static void
gimp_curves_config_set_property (GObject *object,
guint property_id,
const GValue *value,
GParamSpec *pspec)
{
GimpCurvesConfig *self = GIMP_CURVES_CONFIG (object);
switch (property_id)
{
case PROP_CHANNEL:
self->channel = g_value_get_enum (value);
g_object_notify (object, "curve");
break;
case PROP_CURVE:
{
GimpCurve *src_curve = g_value_get_object (value);
GimpCurve *dest_curve = self->curve[self->channel];
if (src_curve && dest_curve)
{
gimp_config_copy (GIMP_CONFIG (src_curve),
GIMP_CONFIG (dest_curve), 0);
}
}
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
break;
}
}
static gboolean
gimp_curves_tool_settings_import (GimpImageMapTool *im_tool,
GInputStream *input,
GError **error)
{
GimpCurvesConfig *config = GIMP_CURVES_CONFIG (im_tool->config);
gchar header[64];
gsize bytes_read;
if (! g_input_stream_read_all (input, header, sizeof (header),
&bytes_read, NULL, error) ||
bytes_read != sizeof (header))
{
g_prefix_error (error, _("Could not read header: "));
return FALSE;
}
g_seekable_seek (G_SEEKABLE (input), 0, G_SEEK_SET, NULL, NULL);
if (g_str_has_prefix (header, "# GIMP Curves File\n"))
return gimp_curves_config_load_cruft (config, input, error);
return GIMP_IMAGE_MAP_TOOL_CLASS (parent_class)->settings_import (im_tool,
input,
error);
}
static void
gimp_curves_tool_color_picked (GimpColorTool *color_tool,
GimpColorPickState pick_state,
gdouble x,
gdouble y,
const Babl *sample_format,
gpointer pixel,
const GimpRGB *color)
{
GimpCurvesTool *tool = GIMP_CURVES_TOOL (color_tool);
GimpImageMapTool *im_tool = GIMP_IMAGE_MAP_TOOL (color_tool);
GimpCurvesConfig *config = GIMP_CURVES_CONFIG (im_tool->config);
GimpDrawable *drawable;
drawable = GIMP_IMAGE_MAP_TOOL (tool)->drawable;
tool->picked_color[GIMP_HISTOGRAM_RED] = color->r;
tool->picked_color[GIMP_HISTOGRAM_GREEN] = color->g;
tool->picked_color[GIMP_HISTOGRAM_BLUE] = color->b;
if (gimp_drawable_has_alpha (drawable))
tool->picked_color[GIMP_HISTOGRAM_ALPHA] = color->a;
else
tool->picked_color[GIMP_HISTOGRAM_ALPHA] = -1;
tool->picked_color[GIMP_HISTOGRAM_VALUE] = MAX (MAX (color->r, color->g),
color->b);
gimp_curve_view_set_xpos (GIMP_CURVE_VIEW (tool->graph),
tool->picked_color[config->channel]);
}
static void
gimp_curves_tool_button_release (GimpTool *tool,
const GimpCoords *coords,
guint32 time,
GdkModifierType state,
GimpButtonReleaseType release_type,
GimpDisplay *display)
{
GimpCurvesTool *c_tool = GIMP_CURVES_TOOL (tool);
GimpImageMapTool *im_tool = GIMP_IMAGE_MAP_TOOL (tool);
GimpCurvesConfig *config = GIMP_CURVES_CONFIG (im_tool->config);
if (state & gimp_get_extend_selection_mask ())
{
GimpCurve *curve = config->curve[config->channel];
gdouble value = c_tool->picked_color[config->channel];
gint closest;
closest = gimp_curve_get_closest_point (curve, value);
gimp_curve_view_set_selected (GIMP_CURVE_VIEW (c_tool->graph),
closest);
gimp_curve_set_point (curve, closest,
value, gimp_curve_map_value (curve, value));
}
else if (state & gimp_get_toggle_behavior_mask ())
{
GimpHistogramChannel channel;
for (channel = GIMP_HISTOGRAM_VALUE;
channel <= GIMP_HISTOGRAM_ALPHA;
channel++)
{
GimpCurve *curve = config->curve[channel];
gdouble value = c_tool->picked_color[channel];
gint closest;
if (value != -1)
{
closest = gimp_curve_get_closest_point (curve, value);
gimp_curve_view_set_selected (GIMP_CURVE_VIEW (c_tool->graph),
closest);
gimp_curve_set_point (curve, closest,
value, gimp_curve_map_value (curve, value));
}
}
}
/* chain up to halt the tool */
GIMP_TOOL_CLASS (parent_class)->button_release (tool, coords, time, state,
release_type, display);
}
static gboolean
gimp_curves_config_copy (GimpConfig *src,
GimpConfig *dest,
GParamFlags flags)
{
GimpCurvesConfig *src_config = GIMP_CURVES_CONFIG (src);
GimpCurvesConfig *dest_config = GIMP_CURVES_CONFIG (dest);
GimpHistogramChannel channel;
for (channel = GIMP_HISTOGRAM_VALUE;
channel <= GIMP_HISTOGRAM_ALPHA;
channel++)
{
gimp_config_copy (GIMP_CONFIG (src_config->curve[channel]),
GIMP_CONFIG (dest_config->curve[channel]),
flags);
}
dest_config->channel = src_config->channel;
g_object_notify (G_OBJECT (dest), "channel");
return TRUE;
}
static gboolean
gimp_curves_tool_settings_export (GimpImageMapTool *im_tool,
GOutputStream *output,
GError **error)
{
GimpCurvesTool *tool = GIMP_CURVES_TOOL (im_tool);
GimpCurvesConfig *config = GIMP_CURVES_CONFIG (im_tool->config);
if (tool->export_old_format)
return gimp_curves_config_save_cruft (config, output, error);
return GIMP_IMAGE_MAP_TOOL_CLASS (parent_class)->settings_export (im_tool,
output,
error);
}
static void
gimp_curves_config_reset (GimpConfig *config)
{
GimpCurvesConfig *c_config = GIMP_CURVES_CONFIG (config);
GimpHistogramChannel channel;
for (channel = GIMP_HISTOGRAM_VALUE;
channel <= GIMP_HISTOGRAM_ALPHA;
channel++)
{
c_config->channel = channel;
gimp_curves_config_reset_channel (c_config);
}
gimp_config_reset_property (G_OBJECT (config), "channel");
}
static void
gimp_curves_config_finalize (GObject *object)
{
GimpCurvesConfig *self = GIMP_CURVES_CONFIG (object);
GimpHistogramChannel channel;
for (channel = GIMP_HISTOGRAM_VALUE;
channel <= GIMP_HISTOGRAM_ALPHA;
channel++)
{
g_object_unref (self->curve[channel]);
self->curve[channel] = NULL;
}
G_OBJECT_CLASS (parent_class)->finalize (object);
}
static gboolean
gimp_curves_config_deserialize (GimpConfig *config,
GScanner *scanner,
gint nest_level,
gpointer data)
{
GimpCurvesConfig *c_config = GIMP_CURVES_CONFIG (config);
GimpHistogramChannel old_channel;
gboolean success = TRUE;
old_channel = c_config->channel;
success = gimp_config_deserialize_properties (config, scanner, nest_level);
g_object_set (config, "channel", old_channel, NULL);
return success;
}
static gboolean
gimp_curves_config_serialize (GimpConfig *config,
GimpConfigWriter *writer,
gpointer data)
{
GimpCurvesConfig *c_config = GIMP_CURVES_CONFIG (config);
GimpHistogramChannel channel;
GimpHistogramChannel old_channel;
gboolean success = TRUE;
if (! gimp_config_serialize_property_by_name (config, "time", writer))
return FALSE;
old_channel = c_config->channel;
for (channel = GIMP_HISTOGRAM_VALUE;
channel <= GIMP_HISTOGRAM_ALPHA;
channel++)
{
c_config->channel = channel;
/* Serialize the channel properties manually (not using
* gimp_config_serialize_properties()), so the parent class'
* "time" property doesn't end up in the config file once per
* channel. See bug #700653.
*/
success =
(gimp_config_serialize_property_by_name (config, "channel", writer) &&
gimp_config_serialize_property_by_name (config, "curve", writer));
if (! success)
break;
}
c_config->channel = old_channel;
return success;
}
static void
gimp_curves_config_get_property (GObject *object,
guint property_id,
GValue *value,
GParamSpec *pspec)
{
GimpCurvesConfig *self = GIMP_CURVES_CONFIG (object);
switch (property_id)
{
case PROP_CHANNEL:
g_value_set_enum (value, self->channel);
break;
case PROP_CURVE:
g_value_set_object (value, self->curve[self->channel]);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
break;
}
}
static gboolean
gimp_operation_curves_process (GeglOperation *operation,
void *in_buf,
void *out_buf,
glong samples,
const GeglRectangle *roi)
{
GimpOperationPointFilter *point = GIMP_OPERATION_POINT_FILTER (operation);
GimpCurvesConfig *config = GIMP_CURVES_CONFIG (point->config);
gfloat *src = in_buf;
gfloat *dest = out_buf;
if (! config)
return FALSE;
gimp_curve_map_pixels (config->curve[0],
config->curve[1],
config->curve[2],
config->curve[3],
config->curve[4], src, dest, samples);
return TRUE;
}
static void
gimp_curves_tool_dialog (GimpImageMapTool *im_tool)
{
GimpCurvesTool *tool = GIMP_CURVES_TOOL (im_tool);
GimpToolOptions *tool_options = GIMP_TOOL_GET_OPTIONS (im_tool);
GimpCurvesConfig *config = GIMP_CURVES_CONFIG (im_tool->config);
GtkListStore *store;
GtkWidget *main_vbox;
GtkWidget *frame_vbox;
GtkWidget *vbox;
GtkWidget *hbox;
GtkWidget *hbox2;
GtkWidget *label;
GtkWidget *main_frame;
GtkWidget *frame;
GtkWidget *table;
GtkWidget *button;
GtkWidget *bar;
GtkWidget *combo;
g_signal_connect (im_tool->settings_box, "file-dialog-setup",
G_CALLBACK (gimp_curves_tool_export_setup),
im_tool);
main_vbox = gimp_image_map_tool_dialog_get_vbox (im_tool);
/* The combo box for selecting channels */
main_frame = gimp_frame_new (NULL);
gtk_box_pack_start (GTK_BOX (main_vbox), main_frame, TRUE, TRUE, 0);
gtk_widget_show (main_frame);
hbox = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 6);
gtk_frame_set_label_widget (GTK_FRAME (main_frame), hbox);
gtk_widget_show (hbox);
label = gtk_label_new_with_mnemonic (_("Cha_nnel:"));
gimp_label_set_attributes (GTK_LABEL (label),
PANGO_ATTR_WEIGHT, PANGO_WEIGHT_BOLD,
-1);
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);
tool->channel_menu =
gimp_enum_combo_box_new_with_model (GIMP_ENUM_STORE (store));
g_object_unref (store);
gimp_int_combo_box_set_active (GIMP_INT_COMBO_BOX (tool->channel_menu),
config->channel);
gimp_enum_combo_box_set_icon_prefix (GIMP_ENUM_COMBO_BOX (tool->channel_menu),
"gimp-channel");
gtk_box_pack_start (GTK_BOX (hbox), tool->channel_menu, FALSE, FALSE, 0);
gtk_widget_show (tool->channel_menu);
g_signal_connect (tool->channel_menu, "changed",
G_CALLBACK (curves_channel_callback),
tool);
gtk_label_set_mnemonic_widget (GTK_LABEL (label), tool->channel_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 (curves_channel_reset_callback),
tool);
/* The histogram scale radio buttons */
hbox2 = gimp_prop_enum_icon_box_new (G_OBJECT (tool_options),
"histogram-scale", "gimp-histogram",
0, 0);
gtk_box_pack_end (GTK_BOX (hbox), hbox2, FALSE, FALSE, 0);
gtk_widget_show (hbox2);
frame_vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 4);
gtk_container_add (GTK_CONTAINER (main_frame), frame_vbox);
gtk_widget_show (frame_vbox);
/* The table for the color bars and the graph */
table = gtk_table_new (2, 2, FALSE);
gtk_table_set_col_spacings (GTK_TABLE (table), 2);
gtk_table_set_row_spacings (GTK_TABLE (table), 2);
gtk_box_pack_start (GTK_BOX (frame_vbox), table, TRUE, TRUE, 0);
/* The left color bar */
vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 0);
gtk_table_attach (GTK_TABLE (table), vbox, 0, 1, 0, 1,
GTK_FILL, GTK_EXPAND | GTK_FILL, 0, 0);
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, RADIUS);
gtk_widget_show (frame);
tool->yrange = gimp_color_bar_new (GTK_ORIENTATION_VERTICAL);
gtk_widget_set_size_request (tool->yrange, BAR_SIZE, -1);
gtk_container_add (GTK_CONTAINER (frame), tool->yrange);
gtk_widget_show (tool->yrange);
/* The curves graph */
frame = gtk_frame_new (NULL);
gtk_frame_set_shadow_type (GTK_FRAME (frame), GTK_SHADOW_IN);
gtk_table_attach (GTK_TABLE (table), frame, 1, 2, 0, 1,
GTK_EXPAND | GTK_FILL, GTK_EXPAND | GTK_FILL, 0, 0);
gtk_widget_show (frame);
tool->graph = gimp_curve_view_new ();
gimp_curve_view_set_range_x (GIMP_CURVE_VIEW (tool->graph), 0, 255);
gimp_curve_view_set_range_y (GIMP_CURVE_VIEW (tool->graph), 0, 255);
gtk_widget_set_size_request (tool->graph,
GRAPH_SIZE + RADIUS * 2,
GRAPH_SIZE + RADIUS * 2);
g_object_set (tool->graph,
"border-width", RADIUS,
"subdivisions", 1,
NULL);
gtk_container_add (GTK_CONTAINER (frame), tool->graph);
gtk_widget_show (tool->graph);
gimp_histogram_options_connect_view (GIMP_HISTOGRAM_OPTIONS (tool_options),
GIMP_HISTOGRAM_VIEW (tool->graph));
/* The bottom color bar */
hbox2 = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 0);
gtk_table_attach (GTK_TABLE (table), hbox2, 1, 2, 1, 2,
GTK_EXPAND | GTK_FILL, GTK_FILL, 0, 0);
gtk_widget_show (hbox2);
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, TRUE, RADIUS);
gtk_widget_show (frame);
vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 0);
gtk_box_set_homogeneous (GTK_BOX (vbox), TRUE);
gtk_container_add (GTK_CONTAINER (frame), vbox);
gtk_widget_show (vbox);
tool->xrange = gimp_color_bar_new (GTK_ORIENTATION_HORIZONTAL);
gtk_widget_set_size_request (tool->xrange, -1, BAR_SIZE / 2);
gtk_box_pack_start (GTK_BOX (vbox), tool->xrange, TRUE, TRUE, 0);
gtk_widget_show (tool->xrange);
bar = gimp_color_bar_new (GTK_ORIENTATION_HORIZONTAL);
gtk_box_pack_start (GTK_BOX (vbox), bar, TRUE, TRUE, 0);
gtk_widget_show (bar);
gtk_widget_show (table);
hbox = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 6);
gtk_box_pack_end (GTK_BOX (frame_vbox), hbox, FALSE, FALSE, 0);
gtk_widget_show (hbox);
label = gtk_label_new_with_mnemonic (_("Curve _type:"));
gtk_box_pack_start (GTK_BOX (hbox), label, FALSE, FALSE, 0);
gtk_widget_show (label);
tool->curve_type = combo = gimp_enum_combo_box_new (GIMP_TYPE_CURVE_TYPE);
gimp_enum_combo_box_set_icon_prefix (GIMP_ENUM_COMBO_BOX (combo),
"gimp-curve");
gimp_int_combo_box_connect (GIMP_INT_COMBO_BOX (combo), 0,
G_CALLBACK (curves_curve_type_callback),
tool);
gtk_box_pack_start (GTK_BOX (hbox), combo, TRUE, TRUE, 0);
gtk_widget_show (combo);
gtk_label_set_mnemonic_widget (GTK_LABEL (label), combo);
gimp_curves_tool_update_channel (tool);
}