static gboolean
gimp_brightness_contrast_tool_initialize (GimpTool *tool,
GimpDisplay *display,
GError **error)
{
GimpBrightnessContrastTool *bc_tool = GIMP_BRIGHTNESS_CONTRAST_TOOL (tool);
GimpImage *image = gimp_display_get_image (display);
GimpDrawable *drawable = gimp_image_get_active_drawable (image);
if (! GIMP_TOOL_CLASS (parent_class)->initialize (tool, display, error))
{
return FALSE;
}
if (gimp_drawable_get_precision (drawable) == GIMP_PRECISION_U8)
{
gimp_prop_widget_set_factor (bc_tool->brightness_scale, 127.0, 0);
gimp_prop_widget_set_factor (bc_tool->contrast_scale, 127.0, 0);
}
else
{
gimp_prop_widget_set_factor (bc_tool->brightness_scale, 0.5, 3);
gimp_prop_widget_set_factor (bc_tool->contrast_scale, 0.5, 3);
}
return TRUE;
}
static GeglNode *
gimp_brightness_contrast_tool_get_operation (GimpImageMapTool *im_tool,
GObject **config)
{
GimpBrightnessContrastTool *bc_tool = GIMP_BRIGHTNESS_CONTRAST_TOOL (im_tool);
GeglNode *node;
node = g_object_new (GEGL_TYPE_NODE,
"operation", "gimp:brightness-contrast",
NULL);
bc_tool->config = g_object_new (GIMP_TYPE_BRIGHTNESS_CONTRAST_CONFIG, NULL);
*config = G_OBJECT (bc_tool->config);
g_signal_connect_object (bc_tool->config, "notify",
G_CALLBACK (brightness_contrast_config_notify),
G_OBJECT (bc_tool), 0);
gegl_node_set (node,
"config", bc_tool->config,
NULL);
return node;
}
static void
gimp_brightness_contrast_tool_dialog (GimpImageMapTool *image_map_tool)
{
GimpBrightnessContrastTool *bc_tool;
GimpBrightnessContrastConfig *config;
GtkWidget *main_vbox;
GtkWidget *table;
GtkWidget *button;
GtkObject *data;
bc_tool = GIMP_BRIGHTNESS_CONTRAST_TOOL (image_map_tool);
config = bc_tool->config;
main_vbox = gimp_image_map_tool_dialog_get_vbox (image_map_tool);
/* The table containing sliders */
table = gtk_table_new (2, 3, FALSE);
gtk_table_set_col_spacings (GTK_TABLE (table), 4);
gtk_table_set_row_spacings (GTK_TABLE (table), 2);
gtk_box_pack_start (GTK_BOX (main_vbox), table, FALSE, FALSE, 0);
gtk_widget_show (table);
/* Create the brightness scale widget */
data = gimp_scale_entry_new (GTK_TABLE (table), 0, 0,
_("_Brightness:"), SLIDER_WIDTH, -1,
config->brightness * 127.0,
-127.0, 127.0, 1.0, 10.0, 0,
TRUE, 0.0, 0.0,
NULL, NULL);
bc_tool->brightness_data = GTK_ADJUSTMENT (data);
g_signal_connect (data, "value-changed",
G_CALLBACK (brightness_contrast_brightness_changed),
bc_tool);
/* Create the contrast scale widget */
data = gimp_scale_entry_new (GTK_TABLE (table), 0, 1,
_("Con_trast:"), SLIDER_WIDTH, -1,
config->contrast * 127.0,
-127.0, 127.0, 1.0, 10.0, 0,
TRUE, 0.0, 0.0,
NULL, NULL);
bc_tool->contrast_data = GTK_ADJUSTMENT (data);
g_signal_connect (data, "value-changed",
G_CALLBACK (brightness_contrast_contrast_changed),
bc_tool);
button = gimp_stock_button_new (GIMP_STOCK_TOOL_LEVELS,
_("Edit these Settings as Levels"));
gtk_box_pack_start (GTK_BOX (main_vbox), button, FALSE, FALSE, 0);
gtk_widget_show (button);
g_signal_connect (button, "clicked",
G_CALLBACK (brightness_contrast_to_levels_callback),
bc_tool);
}
static void
gimp_brightness_contrast_tool_map (GimpImageMapTool *im_tool)
{
GimpBrightnessContrastTool *bc_tool = GIMP_BRIGHTNESS_CONTRAST_TOOL (im_tool);
brightness_contrast_lut_setup (bc_tool->lut,
bc_tool->config->brightness / 2.0,
bc_tool->config->contrast,
gimp_drawable_bytes (im_tool->drawable));
}
static void
gimp_brightness_contrast_tool_finalize (GObject *object)
{
GimpBrightnessContrastTool *bc_tool = GIMP_BRIGHTNESS_CONTRAST_TOOL (object);
if (bc_tool->lut)
{
gimp_lut_free (bc_tool->lut);
bc_tool->lut = NULL;
}
G_OBJECT_CLASS (parent_class)->finalize (object);
}
static GeglNode *
gimp_brightness_contrast_tool_get_operation (GimpImageMapTool *im_tool,
GObject **config,
gchar **undo_desc)
{
GimpBrightnessContrastTool *bc_tool = GIMP_BRIGHTNESS_CONTRAST_TOOL (im_tool);
bc_tool->config = g_object_new (GIMP_TYPE_BRIGHTNESS_CONTRAST_CONFIG, NULL);
*config = G_OBJECT (bc_tool->config);
return gegl_node_new_child (NULL,
"operation", "gimp:brightness-contrast",
"config", bc_tool->config,
NULL);
}
static void
gimp_brightness_contrast_tool_motion (GimpTool *tool,
const GimpCoords *coords,
guint32 time,
GdkModifierType state,
GimpDisplay *display)
{
GimpBrightnessContrastTool *bc_tool = GIMP_BRIGHTNESS_CONTRAST_TOOL (tool);
bc_tool->dx = (coords->x - bc_tool->x);
bc_tool->dy = - (coords->y - bc_tool->y);
g_object_set (bc_tool->config,
"brightness", CLAMP (bc_tool->dy, -127.0, 127.0) / 127.0,
"contrast", CLAMP (bc_tool->dx, -127.0, 127.0) / 127.0,
NULL);
}
static void
gimp_brightness_contrast_tool_button_press (GimpTool *tool,
const GimpCoords *coords,
guint32 time,
GdkModifierType state,
GimpButtonPressType press_type,
GimpDisplay *display)
{
GimpBrightnessContrastTool *bc_tool = GIMP_BRIGHTNESS_CONTRAST_TOOL (tool);
bc_tool->x = coords->x - bc_tool->config->contrast * 127.0;
bc_tool->y = coords->y + bc_tool->config->brightness * 127.0;
bc_tool->dx = bc_tool->config->contrast * 127.0;
bc_tool->dy = - bc_tool->config->brightness * 127.0;
gimp_tool_control_activate (tool->control);
tool->display = display;
}
static void
gimp_brightness_contrast_tool_button_release (GimpTool *tool,
const GimpCoords *coords,
guint32 time,
GdkModifierType state,
GimpButtonReleaseType release_type,
GimpDisplay *display)
{
GimpBrightnessContrastTool *bc_tool = GIMP_BRIGHTNESS_CONTRAST_TOOL (tool);
GimpImageMapTool *im_tool = GIMP_IMAGE_MAP_TOOL (tool);
gimp_tool_control_halt (tool->control);
if (bc_tool->dx == 0 && bc_tool->dy == 0)
return;
if (release_type == GIMP_BUTTON_RELEASE_CANCEL)
gimp_config_reset (GIMP_CONFIG (bc_tool->config));
gimp_image_map_tool_preview (im_tool);
}
static void
gimp_brightness_contrast_tool_dialog (GimpImageMapTool *image_map_tool)
{
GimpBrightnessContrastTool *bc_tool = GIMP_BRIGHTNESS_CONTRAST_TOOL (image_map_tool);
GtkWidget *main_vbox;
GtkWidget *scale;
GtkWidget *button;
main_vbox = gimp_image_map_tool_dialog_get_vbox (image_map_tool);
/* Create the brightness scale widget */
scale = gimp_prop_spin_scale_new (image_map_tool->config, "brightness",
_("_Brightness"), 1.0 / 127.0, 10.0 / 127.0,
0);
gtk_box_pack_start (GTK_BOX (main_vbox), scale, FALSE, FALSE, 0);
gtk_widget_show (scale);
bc_tool->brightness_scale = scale;
/* Create the contrast scale widget */
scale = gimp_prop_spin_scale_new (image_map_tool->config, "contrast",
_("_Contrast"), 1.0 / 127.0, 10.0 / 127.0,
0);
gtk_box_pack_start (GTK_BOX (main_vbox), scale, FALSE, FALSE, 0);
gtk_widget_show (scale);
bc_tool->contrast_scale = scale;
button = gimp_stock_button_new (GIMP_STOCK_TOOL_LEVELS,
_("Edit these Settings as Levels"));
gtk_box_pack_start (GTK_BOX (main_vbox), button, FALSE, FALSE, 0);
gtk_widget_show (button);
g_signal_connect (button, "clicked",
G_CALLBACK (brightness_contrast_to_levels_callback),
image_map_tool);
}
static gboolean
gimp_brightness_contrast_tool_initialize (GimpTool *tool,
GimpDisplay *display,
GError **error)
{
GimpBrightnessContrastTool *bc_tool = GIMP_BRIGHTNESS_CONTRAST_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,
_("Brightness-Contrast does not operate "
"on indexed layers."));
return FALSE;
}
gimp_config_reset (GIMP_CONFIG (bc_tool->config));
return GIMP_TOOL_CLASS (parent_class)->initialize (tool, display, error);
}