/* GIMP - The GNU Image Manipulation Program * Copyright (C) 1995 Spencer Kimball and Peter Mattis * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ #include "config.h" #include #include #include #include "libgimpconfig/gimpconfig.h" #include "libgimpwidgets/gimpwidgets.h" #include "tools-types.h" #include "base/gimplut.h" #include "base/lut-funcs.h" #include "gegl/gimpbrightnesscontrastconfig.h" #include "core/gimpdrawable.h" #include "core/gimperror.h" #include "core/gimpimage.h" #include "widgets/gimphelp-ids.h" #include "widgets/gimpwidgets-constructors.h" #include "display/gimpdisplay.h" #include "gimpbrightnesscontrasttool.h" #include "gimpimagemapoptions.h" #include "gimptoolcontrol.h" #include "gimp-intl.h" #define SLIDER_WIDTH 200 static void gimp_brightness_contrast_tool_finalize (GObject *object); static gboolean gimp_brightness_contrast_tool_initialize (GimpTool *tool, GimpDisplay *display, GError **error); static void gimp_brightness_contrast_tool_button_press (GimpTool *tool, const GimpCoords *coords, guint32 time, GdkModifierType state, GimpDisplay *display); static void gimp_brightness_contrast_tool_button_release (GimpTool *tool, const GimpCoords *coords, guint32 time, GdkModifierType state, GimpButtonReleaseType release_type, GimpDisplay *display); static void gimp_brightness_contrast_tool_motion (GimpTool *tool, const GimpCoords *coords, guint32 time, GdkModifierType state, GimpDisplay *display); static GeglNode * gimp_brightness_contrast_tool_get_operation (GimpImageMapTool *image_map_tool, GObject **config); static void gimp_brightness_contrast_tool_map (GimpImageMapTool *image_map_tool); static void gimp_brightness_contrast_tool_dialog (GimpImageMapTool *image_map_tool); static void brightness_contrast_config_notify (GObject *object, GParamSpec *pspec, GimpBrightnessContrastTool *bc_tool); static void brightness_contrast_brightness_changed (GtkAdjustment *adj, GimpBrightnessContrastTool *bc_tool); static void brightness_contrast_contrast_changed (GtkAdjustment *adj, GimpBrightnessContrastTool *bc_tool); static void brightness_contrast_to_levels_callback (GtkWidget *widget, GimpBrightnessContrastTool *bc_tool); G_DEFINE_TYPE (GimpBrightnessContrastTool, gimp_brightness_contrast_tool, GIMP_TYPE_IMAGE_MAP_TOOL) #define parent_class gimp_brightness_contrast_tool_parent_class void gimp_brightness_contrast_tool_register (GimpToolRegisterCallback callback, gpointer data) { (* callback) (GIMP_TYPE_BRIGHTNESS_CONTRAST_TOOL, GIMP_TYPE_IMAGE_MAP_OPTIONS, NULL, 0, "gimp-brightness-contrast-tool", _("Brightness-Contrast"), _("Brightness/Contrast Tool: Adjust brightness and contrast"), N_("B_rightness-Contrast..."), NULL, NULL, GIMP_HELP_TOOL_BRIGHTNESS_CONTRAST, GIMP_STOCK_TOOL_BRIGHTNESS_CONTRAST, data); } static void gimp_brightness_contrast_tool_class_init (GimpBrightnessContrastToolClass *klass) { GObjectClass *object_class = G_OBJECT_CLASS (klass); GimpToolClass *tool_class = GIMP_TOOL_CLASS (klass); GimpImageMapToolClass *im_tool_class = GIMP_IMAGE_MAP_TOOL_CLASS (klass); object_class->finalize = gimp_brightness_contrast_tool_finalize; tool_class->initialize = gimp_brightness_contrast_tool_initialize; tool_class->button_press = gimp_brightness_contrast_tool_button_press; tool_class->button_release = gimp_brightness_contrast_tool_button_release; tool_class->motion = gimp_brightness_contrast_tool_motion; im_tool_class->shell_desc = _("Adjust Brightness and Contrast"); im_tool_class->settings_name = "brightness-contrast"; im_tool_class->import_dialog_title = _("Import Brightness-Contrast settings"); im_tool_class->export_dialog_title = _("Export Brightness-Contrast settings"); im_tool_class->get_operation = gimp_brightness_contrast_tool_get_operation; im_tool_class->map = gimp_brightness_contrast_tool_map; im_tool_class->dialog = gimp_brightness_contrast_tool_dialog; } static void gimp_brightness_contrast_tool_init (GimpBrightnessContrastTool *bc_tool) { GimpImageMapTool *im_tool = GIMP_IMAGE_MAP_TOOL (bc_tool); bc_tool->lut = gimp_lut_new (); im_tool->apply_func = (GimpImageMapApplyFunc) gimp_lut_process; im_tool->apply_data = bc_tool->lut; } 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 gboolean gimp_brightness_contrast_tool_initialize (GimpTool *tool, GimpDisplay *display, GError **error) { GimpBrightnessContrastTool *bc_tool = GIMP_BRIGHTNESS_CONTRAST_TOOL (tool); GimpDrawable *drawable; drawable = gimp_image_get_active_drawable (display->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)); GIMP_TOOL_CLASS (parent_class)->initialize (tool, display, error); return TRUE; } static GeglNode * gimp_brightness_contrast_tool_get_operation (GimpImageMapTool *im_tool, GObject **config) { 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); g_signal_connect_object (bc_tool->config, "notify", G_CALLBACK (brightness_contrast_config_notify), G_OBJECT (bc_tool), 0); return g_object_new (GEGL_TYPE_NODE, "operation", "gegl:brightness-contrast", NULL); } static void gimp_brightness_contrast_tool_map (GimpImageMapTool *im_tool) { GimpBrightnessContrastTool *bc_tool = GIMP_BRIGHTNESS_CONTRAST_TOOL (im_tool); gimp_brightness_contrast_config_set_node (bc_tool->config, im_tool->operation); 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_button_press (GimpTool *tool, const GimpCoords *coords, guint32 time, GdkModifierType state, 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_motion (GimpTool *tool, const GimpCoords *coords, guint32 time, GdkModifierType state, GimpDisplay *display) { GimpBrightnessContrastTool *bc_tool = GIMP_BRIGHTNESS_CONTRAST_TOOL (tool); gimp_tool_control_pause (tool->control); 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); gimp_tool_control_resume (tool->control); } /********************************/ /* Brightness Contrast dialog */ /********************************/ static void gimp_brightness_contrast_tool_dialog (GimpImageMapTool *image_map_tool) { GimpBrightnessContrastTool *bc_tool; GimpBrightnessContrastConfig *config; GtkWidget *main_vbox; GtkWidget *table; GtkWidget *slider; 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); slider = GIMP_SCALE_ENTRY_SCALE (data); gtk_range_set_update_policy (GTK_RANGE (slider), GTK_UPDATE_CONTINUOUS); 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); slider = GIMP_SCALE_ENTRY_SCALE (data); gtk_range_set_update_policy (GTK_RANGE (slider), GTK_UPDATE_CONTINUOUS); 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 brightness_contrast_config_notify (GObject *object, GParamSpec *pspec, GimpBrightnessContrastTool *bc_tool) { GimpBrightnessContrastConfig *config; config = GIMP_BRIGHTNESS_CONTRAST_CONFIG (object); if (! bc_tool->brightness_data) return; if (! strcmp (pspec->name, "brightness")) { gtk_adjustment_set_value (bc_tool->brightness_data, config->brightness * 127.0); } else if (! strcmp (pspec->name, "contrast")) { gtk_adjustment_set_value (bc_tool->contrast_data, config->contrast * 127.0); } gimp_image_map_tool_preview (GIMP_IMAGE_MAP_TOOL (bc_tool)); } static void brightness_contrast_brightness_changed (GtkAdjustment *adjustment, GimpBrightnessContrastTool *bc_tool) { GimpBrightnessContrastConfig *config = bc_tool->config; gdouble value; value = gtk_adjustment_get_value (adjustment) / 127.0; if (config->brightness != value) { g_object_set (config, "brightness", value, NULL); } } static void brightness_contrast_contrast_changed (GtkAdjustment *adjustment, GimpBrightnessContrastTool *bc_tool) { GimpBrightnessContrastConfig *config = bc_tool->config; gdouble value; value = gtk_adjustment_get_value (adjustment) / 127.0; if (config->contrast != value) { g_object_set (config, "contrast", value, NULL); } } static void brightness_contrast_to_levels_callback (GtkWidget *widget, GimpBrightnessContrastTool *bc_tool) { GimpLevelsConfig *levels; levels = gimp_brightness_contrast_config_to_levels_config (bc_tool->config); gimp_image_map_tool_edit_as (GIMP_IMAGE_MAP_TOOL (bc_tool), "gimp-levels-tool", GIMP_CONFIG (levels)); g_object_unref (levels); }