static void
gimp_histogram_view_set_property (GObject *object,
guint property_id,
const GValue *value,
GParamSpec *pspec)
{
GimpHistogramView *view = GIMP_HISTOGRAM_VIEW (object);
switch (property_id)
{
case PROP_CHANNEL:
view->channel = g_value_get_enum (value);
gtk_widget_queue_draw (GTK_WIDGET (view));
break;
case PROP_SCALE:
view->scale = g_value_get_enum (value);
gtk_widget_queue_draw (GTK_WIDGET (view));
break;
case PROP_BORDER_WIDTH:
view->border_width = g_value_get_int (value);
gtk_widget_queue_resize (GTK_WIDGET (view));
break;
case PROP_SUBDIVISIONS:
view->subdivisions = g_value_get_int (value);
gtk_widget_queue_draw (GTK_WIDGET (view));
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
break;
}
}
static gboolean
gimp_histogram_view_button_press (GtkWidget *widget,
GdkEventButton *bevent)
{
GimpHistogramView *view = GIMP_HISTOGRAM_VIEW (widget);
if (bevent->type == GDK_BUTTON_PRESS && bevent->button == 1)
{
gint width;
gdk_pointer_grab (widget->window, FALSE,
GDK_BUTTON_RELEASE_MASK | GDK_BUTTON1_MOTION_MASK,
NULL, NULL, bevent->time);
width = widget->allocation.width - 2 * view->border_width;
view->start = CLAMP ((((bevent->x - view->border_width) * 256) / width),
0, 255);
view->end = view->start;
gtk_widget_queue_draw (widget);
}
return TRUE;
}
static gboolean
gimp_histogram_view_button_release (GtkWidget *widget,
GdkEventButton *bevent)
{
GimpHistogramView *view = GIMP_HISTOGRAM_VIEW (widget);
if (bevent->button == 1)
{
gint start, end;
gdk_display_pointer_ungrab (gtk_widget_get_display (GTK_WIDGET (view)),
bevent->time);
start = view->start;
end = view->end;
view->start = MIN (start, end);
view->end = MAX (start, end);
g_signal_emit (view, histogram_view_signals[RANGE_CHANGED], 0,
view->start, view->end);
}
return TRUE;
}
static void
gimp_histogram_view_get_property (GObject *object,
guint property_id,
GValue *value,
GParamSpec *pspec)
{
GimpHistogramView *view = GIMP_HISTOGRAM_VIEW (object);
switch (property_id)
{
case PROP_CHANNEL:
g_value_set_enum (value, view->channel);
break;
case PROP_SCALE:
g_value_set_enum (value, view->scale);
break;
case PROP_BORDER_WIDTH:
g_value_set_int (value, view->border_width);
break;
case PROP_SUBDIVISIONS:
g_value_set_int (value, view->subdivisions);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
break;
}
}
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_histogram_view_size_request (GtkWidget *widget,
GtkRequisition *requisition)
{
GimpHistogramView *view = GIMP_HISTOGRAM_VIEW (widget);
requisition->width = MIN_WIDTH + 2 * view->border_width;
requisition->height = MIN_HEIGHT + 2 * view->border_width;
}
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_histogram_view_motion_notify (GtkWidget *widget,
GdkEventMotion *mevent)
{
GimpHistogramView *view = GIMP_HISTOGRAM_VIEW (widget);
gint width;
width = widget->allocation.width - 2 * view->border_width;
view->start = CLAMP ((((mevent->x - view->border_width) * 256) / width),
0, 255);
gtk_widget_queue_draw (widget);
return TRUE;
}
static void
levels_channel_callback (GtkWidget *widget,
GimpLevelsTool *tool)
{
gint value;
if (gimp_int_combo_box_get_active (GIMP_INT_COMBO_BOX (widget), &value))
{
tool->channel = value;
gimp_histogram_view_set_channel (GIMP_HISTOGRAM_VIEW (tool->hist_view),
tool->channel);
/* FIXME: hack */
if (! tool->color)
tool->channel = (tool->channel == GIMP_HISTOGRAM_ALPHA) ? 1 : 0;
levels_update (tool, ALL);
}
}
static void
gimp_histogram_view_finalize (GObject *object)
{
GimpHistogramView *view = GIMP_HISTOGRAM_VIEW (object);
if (view->histogram)
{
gimp_histogram_unref (view->histogram);
view->histogram = NULL;
}
if (view->bg_histogram)
{
gimp_histogram_unref (view->bg_histogram);
view->bg_histogram = NULL;
}
G_OBJECT_CLASS (parent_class)->finalize (object);
}
static gboolean
gimp_curves_tool_initialize (GimpTool *tool,
GimpDisplay *display,
GError **error)
{
GimpCurvesTool *c_tool = GIMP_CURVES_TOOL (tool);
GimpImage *image = gimp_display_get_image (display);
GimpDrawable *drawable = gimp_image_get_active_drawable (image);
GimpHistogram *histogram;
if (! GIMP_TOOL_CLASS (parent_class)->initialize (tool, display, error))
{
return FALSE;
}
/* always pick colors */
gimp_color_tool_enable (GIMP_COLOR_TOOL (tool),
GIMP_COLOR_TOOL_GET_OPTIONS (tool));
gimp_int_combo_box_set_sensitivity (GIMP_INT_COMBO_BOX (c_tool->channel_menu),
curves_menu_sensitivity, drawable, NULL);
histogram = gimp_histogram_new (TRUE);
gimp_drawable_calculate_histogram (drawable, histogram);
gimp_histogram_view_set_background (GIMP_HISTOGRAM_VIEW (c_tool->graph),
histogram);
g_object_unref (histogram);
if (gimp_drawable_get_precision (drawable) == GIMP_PRECISION_U8)
{
gimp_curve_view_set_range_x (GIMP_CURVE_VIEW (c_tool->graph), 0, 255);
gimp_curve_view_set_range_y (GIMP_CURVE_VIEW (c_tool->graph), 0, 255);
}
else
{
gimp_curve_view_set_range_x (GIMP_CURVE_VIEW (c_tool->graph), 0.0, 1.0);
gimp_curve_view_set_range_y (GIMP_CURVE_VIEW (c_tool->graph), 0.0, 1.0);
}
return TRUE;
}
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 gboolean
gimp_curves_tool_initialize (GimpTool *tool,
GimpDisplay *display,
GError **error)
{
GimpCurvesTool *c_tool = GIMP_CURVES_TOOL (tool);
GimpDrawable *drawable = gimp_image_get_active_drawable (display->image);
GimpHistogram *histogram;
if (! drawable)
return FALSE;
if (gimp_drawable_is_indexed (drawable))
{
g_set_error (error, 0, 0,
_("Curves does not operate on indexed layers."));
return FALSE;
}
gimp_config_reset (GIMP_CONFIG (c_tool->config));
GIMP_TOOL_CLASS (parent_class)->initialize (tool, display, error);
/* always pick colors */
gimp_color_tool_enable (GIMP_COLOR_TOOL (tool),
GIMP_COLOR_TOOL_GET_OPTIONS (tool));
gimp_int_combo_box_set_sensitivity (GIMP_INT_COMBO_BOX (c_tool->channel_menu),
curves_menu_sensitivity, drawable, NULL);
histogram = gimp_histogram_new ();
gimp_drawable_calculate_histogram (drawable, histogram);
gimp_histogram_view_set_background (GIMP_HISTOGRAM_VIEW (c_tool->graph),
histogram);
gimp_histogram_unref (histogram);
return TRUE;
}
static void
gimp_histogram_box_init (GimpHistogramBox *box)
{
GtkWidget *hbox;
GtkWidget *vbox;
GtkWidget *spinbutton;
GtkObject *adjustment;
GtkWidget *frame;
GtkWidget *view;
GtkWidget *bar;
GtkWidget *slider_area;
gtk_box_set_spacing (GTK_BOX (box), 2);
/* The histogram */
frame = gtk_frame_new (NULL);
gtk_frame_set_shadow_type (GTK_FRAME (frame), GTK_SHADOW_IN);
gtk_box_pack_start (GTK_BOX (box), frame, TRUE, TRUE, 0);
gtk_widget_show (frame);
view = gimp_histogram_view_new (TRUE);
gtk_container_add (GTK_CONTAINER (frame), view);
gtk_widget_show (view);
g_signal_connect (view, "range-changed",
G_CALLBACK (gimp_histogram_box_histogram_range),
box);
box->view = GIMP_HISTOGRAM_VIEW (view);
/* The gradient below the histogram */
frame = gtk_frame_new (NULL);
gtk_frame_set_shadow_type (GTK_FRAME (frame), GTK_SHADOW_IN);
gtk_box_pack_start (GTK_BOX (box), frame, FALSE, FALSE, 0);
gtk_widget_show (frame);
box->slider_area = slider_area = gtk_event_box_new ();
gtk_widget_set_size_request (slider_area, -1,
GRADIENT_HEIGHT + CONTROL_HEIGHT);
gtk_widget_add_events (slider_area, HISTOGRAM_EVENT_MASK);
gtk_container_add (GTK_CONTAINER (frame), slider_area);
gtk_widget_show (slider_area);
g_signal_connect (slider_area, "event",
G_CALLBACK (gimp_histogram_slider_area_event),
box);
g_signal_connect_after (slider_area, "expose-event",
G_CALLBACK (gimp_histogram_slider_area_expose),
box);
vbox = gtk_vbox_new (FALSE, 0);
gtk_container_add (GTK_CONTAINER (slider_area), vbox);
gtk_widget_show (vbox);
bar = g_object_new (GIMP_TYPE_COLOR_BAR,
"histogram-channel", box->view->channel,
"xpad", box->view->border_width,
"ypad", box->view->border_width,
NULL);
gtk_widget_set_size_request (bar,
-1,
GRADIENT_HEIGHT + 2 * box->view->border_width);
gtk_box_pack_start (GTK_BOX (vbox), bar, FALSE, FALSE, 0);
gtk_widget_show (bar);
g_signal_connect (view, "notify::histogram-channel",
G_CALLBACK (gimp_histogram_box_channel_notify),
bar);
g_signal_connect (view, "notify::border-width",
G_CALLBACK (gimp_histogram_box_border_notify),
bar);
/* The range selection */
hbox = gtk_hbox_new (FALSE, 6);
gtk_box_pack_start (GTK_BOX (box), hbox, FALSE, FALSE, 0);
gtk_widget_show (hbox);
/* low spinbutton */
spinbutton = gimp_spin_button_new (&adjustment,
0.0, 0.0, 255.0, 1.0, 16.0, 0.0,
1.0, 0);
box->low_adj = GTK_ADJUSTMENT (adjustment);
gtk_box_pack_start (GTK_BOX (hbox), spinbutton, FALSE, FALSE, 0);
gtk_widget_show (spinbutton);
g_signal_connect (adjustment, "value-changed",
G_CALLBACK (gimp_histogram_box_low_adj_update),
box);
/* high spinbutton */
spinbutton = gimp_spin_button_new (&adjustment,
255.0, 0.0, 255.0, 1.0, 16.0, 0.0,
1.0, 0);
box->high_adj = GTK_ADJUSTMENT (adjustment);
gtk_box_pack_end (GTK_BOX (hbox), spinbutton, FALSE, FALSE, 0);
gtk_widget_show (spinbutton);
g_signal_connect (adjustment, "value-changed",
G_CALLBACK (gimp_histogram_box_high_adj_update),
box);
#ifdef DEBUG_VIEW
spinbutton = gimp_prop_spin_button_new (G_OBJECT (box->view), "border-width",
1, 5, 0);
gtk_box_pack_start (GTK_BOX (hbox), spinbutton, FALSE, FALSE, 0);
gtk_widget_show (spinbutton);
spinbutton = gimp_prop_spin_button_new (G_OBJECT (box->view), "subdivisions",
1, 5, 0);
gtk_box_pack_start (GTK_BOX (hbox), spinbutton, FALSE, FALSE, 0);
gtk_widget_show (spinbutton);
#endif
}
static void
gimp_curves_tool_dialog (GimpImageMapTool *image_map_tool)
{
GimpCurvesTool *tool = GIMP_CURVES_TOOL (image_map_tool);
GimpToolOptions *tool_options = GIMP_TOOL_GET_OPTIONS (image_map_tool);
GimpCurvesConfig *config = tool->config;
GtkListStore *store;
GtkSizeGroup *label_group;
GtkWidget *main_vbox;
GtkWidget *vbox;
GtkWidget *hbox;
GtkWidget *hbox2;
GtkWidget *label;
GtkWidget *frame;
GtkWidget *table;
GtkWidget *button;
GtkWidget *bar;
GtkWidget *combo;
g_signal_connect (image_map_tool->settings_box, "file-dialog-setup",
G_CALLBACK (gimp_curves_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 combo box for selecting channels */
hbox = gtk_hbox_new (FALSE, 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);
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_stock_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_stock_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);
/* 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 (main_vbox), table, TRUE, TRUE, 0);
/* The left color bar */
vbox = gtk_vbox_new (FALSE, 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 ();
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);
gimp_curve_view_set_curve (GIMP_CURVE_VIEW (tool->graph),
config->curve[config->channel]);
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_hbox_new (FALSE, 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_vbox_new (TRUE, 0);
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_hbox_new (FALSE, 6);
gtk_box_pack_end (GTK_BOX (main_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_stock_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);
}
static gboolean
gimp_histogram_view_expose (GtkWidget *widget,
GdkEventExpose *event)
{
GimpHistogramView *view = GIMP_HISTOGRAM_VIEW (widget);
GtkStyle *style = gtk_widget_get_style (widget);
gint x;
gint x1, x2;
gint border;
gint width, height;
gdouble max = 0.0;
gdouble bg_max = 0.0;
gint xstop;
GdkGC *gc_in;
GdkGC *gc_out;
GdkGC *bg_gc_in;
GdkGC *bg_gc_out;
GdkGC *rgb_gc[3] = { NULL, NULL, NULL };
if (! view->histogram && ! view->bg_histogram)
return FALSE;
border = view->border_width;
width = widget->allocation.width - 2 * border;
height = widget->allocation.height - 2 * border;
x1 = CLAMP (MIN (view->start, view->end), 0, 255);
x2 = CLAMP (MAX (view->start, view->end), 0, 255);
gdk_draw_rectangle (widget->window,
style->base_gc[GTK_STATE_NORMAL], TRUE,
0, 0,
widget->allocation.width,
widget->allocation.height);
/* Draw the outer border */
gdk_draw_rectangle (widget->window,
style->dark_gc[GTK_STATE_NORMAL], FALSE,
border, border,
width - 1, height - 1);
if (view->histogram)
max = gimp_histogram_view_get_maximum (view, view->histogram,
view->channel);
if (view->bg_histogram)
bg_max = gimp_histogram_view_get_maximum (view, view->bg_histogram,
view->channel);
gc_in = style->text_gc[GTK_STATE_SELECTED];
gc_out = style->text_gc[GTK_STATE_NORMAL];
bg_gc_in = style->mid_gc[GTK_STATE_SELECTED];
bg_gc_out = style->mid_gc[GTK_STATE_NORMAL];
if (view->channel == GIMP_HISTOGRAM_RGB)
{
GdkGCValues values;
GdkColor color;
values.function = GDK_OR;
for (x = 0; x < 3; x++)
{
rgb_gc[x] = gdk_gc_new_with_values (widget->window,
&values, GDK_GC_FUNCTION);
color.red = (x == 0 ? 0xFFFF : 0x0);
color.green = (x == 1 ? 0xFFFF : 0x0);
color.blue = (x == 2 ? 0xFFFF : 0x0);
gdk_gc_set_rgb_fg_color (rgb_gc[x], &color);
}
}
xstop = 1;
for (x = 0; x < width; x++)
{
gboolean in_selection = FALSE;
gint i = (x * 256) / width;
gint j = ((x + 1) * 256) / width;
if (! (x1 == 0 && x2 == 255))
{
gint k = i;
do
in_selection |= (x1 <= k && k <= x2);
while (++k < j);
}
if (view->subdivisions > 1 && x >= (xstop * width / view->subdivisions))
{
gdk_draw_line (widget->window,
style->dark_gc[GTK_STATE_NORMAL],
x + border, border,
x + border, border + height - 1);
xstop++;
}
else if (in_selection)
{
gdk_draw_line (widget->window,
style->base_gc[GTK_STATE_SELECTED],
x + border, border,
x + border, border + height - 1);
}
if (view->channel == GIMP_HISTOGRAM_RGB)
{
gint c;
for (c = 0; c < 3; c++)
gimp_histogram_view_draw_spike (view, GIMP_HISTOGRAM_RED + c,
style->black_gc,
NULL,
x, i, j, max, bg_max, height, border);
for (c = 0; c < 3; c++)
gimp_histogram_view_draw_spike (view, GIMP_HISTOGRAM_RED + c,
rgb_gc[c],
NULL,
x, i, j, max, bg_max, height, border);
gimp_histogram_view_draw_spike (view, view->channel,
in_selection ? gc_in : gc_out,
NULL,
x, i, j, max, bg_max, height, border);
}
else
{
gimp_histogram_view_draw_spike (view, view->channel,
in_selection ? gc_in : gc_out,
in_selection ? bg_gc_in : bg_gc_out,
x, i, j, max, bg_max, height, border);
}
}
if (view->channel == GIMP_HISTOGRAM_RGB)
{
for (x = 0; x < 3; x++)
g_object_unref (rgb_gc[x]);
}
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);
}
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);
}