static gboolean gimp_threshold_tool_initialize (GimpTool *tool, GimpDisplay *display, GError **error) { GimpThresholdTool *t_tool = GIMP_THRESHOLD_TOOL (tool); GimpImage *image = gimp_display_get_image (display); GimpDrawable *drawable = gimp_image_get_active_drawable (image); if (! drawable) return FALSE; gimp_config_reset (GIMP_CONFIG (t_tool->config)); if (! GIMP_TOOL_CLASS (parent_class)->initialize (tool, display, error)) { return FALSE; } gimp_drawable_calculate_histogram (drawable, t_tool->histogram); gimp_histogram_view_set_histogram (t_tool->histogram_box->view, t_tool->histogram); gimp_image_map_tool_preview (GIMP_IMAGE_MAP_TOOL (t_tool)); 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); 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 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_editor_validate (GimpHistogramEditor *editor) { if (! editor->valid && editor->histogram) { if (editor->drawable) gimp_drawable_calculate_histogram (editor->drawable, editor->histogram); else gimp_histogram_calculate (editor->histogram, NULL, NULL); gimp_histogram_editor_info_update (editor); editor->valid = TRUE; } return editor->valid; }
void gimp_drawable_equalize (GimpDrawable *drawable, gboolean mask_only) { GimpHistogram *hist; GimpLut *lut; g_return_if_fail (GIMP_IS_DRAWABLE (drawable)); g_return_if_fail (gimp_item_is_attached (GIMP_ITEM (drawable))); hist = gimp_histogram_new (); gimp_drawable_calculate_histogram (drawable, hist); lut = equalize_lut_new (hist, gimp_drawable_bytes (drawable)); gimp_histogram_unref (hist); gimp_drawable_process_lut (drawable, NULL, _("Equalize"), lut); gimp_lut_free (lut); }
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; }