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Diffstat (limited to 'libgimpwidgets/gimpcolorscales.c')
| -rw-r--r-- | libgimpwidgets/gimpcolorscales.c | 884 |
1 files changed, 884 insertions, 0 deletions
diff --git a/libgimpwidgets/gimpcolorscales.c b/libgimpwidgets/gimpcolorscales.c new file mode 100644 index 0000000..fbd6946 --- /dev/null +++ b/libgimpwidgets/gimpcolorscales.c @@ -0,0 +1,884 @@ +/* LIBGIMP - The GIMP Library + * Copyright (C) 1995-1997 Peter Mattis and Spencer Kimball + * + * gimpcolorscales.c + * Copyright (C) 2002 Michael Natterer <mitch@gimp.org> + * + * based on color_notebook module + * Copyright (C) 1998 Austin Donnelly <austin@greenend.org.uk> + * + * This library is free software: you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 3 of the License, or (at your option) any later version. + * + * This library 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 + * Library General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library. If not, see + * <https://www.gnu.org/licenses/>. + */ + +#include "config.h" + +#include <string.h> + +#include <gegl.h> +#include <gtk/gtk.h> + +#include "libgimpbase/gimpbase.h" +#include "libgimpcolor/gimpcolor.h" +#include "libgimpmath/gimpmath.h" + +#include "gimpwidgetstypes.h" + +#include "gimpcolorscale.h" +#include "gimpcolorscales.h" +#include "gimpwidgets.h" + +#include "libgimp/libgimp-intl.h" + + +/** + * SECTION: gimpcolorscales + * @title: GimpColorScales + * @short_description: A #GimpColorSelector implementation. + * + * The #GimpColorScales widget is an implementation of a + * #GimpColorSelector. It shows a group of #GimpColorScale widgets + * that allow to adjust the HSV, LCH, and RGB color channels. + **/ + + +enum +{ + PROP_0, + PROP_SHOW_RGB_U8 +}; + +enum +{ + GIMP_COLOR_SELECTOR_RED_U8 = GIMP_COLOR_SELECTOR_LCH_HUE + 1, + GIMP_COLOR_SELECTOR_GREEN_U8, + GIMP_COLOR_SELECTOR_BLUE_U8, + GIMP_COLOR_SELECTOR_ALPHA_U8 +}; + + +typedef struct _GimpLCH GimpLCH; + +struct _GimpLCH +{ + gdouble l, c, h, a; +}; + + +typedef struct _ColorScale ColorScale; + +struct _ColorScale +{ + GimpColorSelectorChannel channel; + + gdouble default_value; + gdouble scale_min_value; + gdouble scale_max_value; + gdouble scale_inc; + gdouble spin_min_value; + gdouble spin_max_value; +}; + + +#define GIMP_COLOR_SCALES_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GIMP_TYPE_COLOR_SCALES, GimpColorScalesClass)) +#define GIMP_IS_COLOR_SCALES_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GIMP_TYPE_COLOR_SCALES)) +#define GIMP_COLOR_SCALES_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GIMP_TYPE_COLOR_SCALES, GimpColorScalesClass)) + + +typedef struct _GimpColorScalesClass GimpColorScalesClass; + +struct _GimpColorScales +{ + GimpColorSelector parent_instance; + + gboolean show_rgb_u8; + + GtkWidget *lch_group; + GtkWidget *hsv_group; + GtkWidget *rgb_percent_group; + GtkWidget *rgb_u8_group; + GtkWidget *alpha_percent_group; + GtkWidget *alpha_u8_group; + + GtkWidget *dummy_u8_toggle; + GtkWidget *toggles[14]; + GtkAdjustment *adjustments[14]; + GtkWidget *scales[14]; +}; + +struct _GimpColorScalesClass +{ + GimpColorSelectorClass parent_class; +}; + + +static void gimp_color_scales_dispose (GObject *object); +static void gimp_color_scales_get_property (GObject *object, + guint property_id, + GValue *value, + GParamSpec *pspec); +static void gimp_color_scales_set_property (GObject *object, + guint property_id, + const GValue *value, + GParamSpec *pspec); + +static void gimp_color_scales_togg_sensitive (GimpColorSelector *selector, + gboolean sensitive); +static void gimp_color_scales_togg_visible (GimpColorSelector *selector, + gboolean visible); + +static void gimp_color_scales_set_show_alpha (GimpColorSelector *selector, + gboolean show_alpha); +static void gimp_color_scales_set_color (GimpColorSelector *selector, + const GimpRGB *rgb, + const GimpHSV *hsv); +static void gimp_color_scales_set_channel (GimpColorSelector *selector, + GimpColorSelectorChannel channel); +static void gimp_color_scales_set_model_visible + (GimpColorSelector *selector, + GimpColorSelectorModel model, + gboolean visible); +static void gimp_color_scales_set_config (GimpColorSelector *selector, + GimpColorConfig *config); + +static void gimp_color_scales_update_visible (GimpColorScales *scales); +static void gimp_color_scales_update_scales (GimpColorScales *scales, + gint skip); +static void gimp_color_scales_toggle_changed (GtkWidget *widget, + GimpColorScales *scales); +static void gimp_color_scales_scale_changed (GtkAdjustment *adjustment, + GimpColorScales *scales); +static void gimp_color_scales_toggle_lch_hsv (GtkToggleButton *toggle, + GimpColorScales *scales); + + +G_DEFINE_TYPE (GimpColorScales, gimp_color_scales, GIMP_TYPE_COLOR_SELECTOR) + +#define parent_class gimp_color_scales_parent_class + +static const Babl *fish_rgb_to_lch = NULL; +static const Babl *fish_lch_to_rgb = NULL; + +static const ColorScale scale_defs[] = +{ + { GIMP_COLOR_SELECTOR_HUE, 0, 0, 360, 30, 0, 360 }, + { GIMP_COLOR_SELECTOR_SATURATION, 0, 0, 100, 10, 0, 500 }, + { GIMP_COLOR_SELECTOR_VALUE, 0, 0, 100, 10, 0, 500 }, + + { GIMP_COLOR_SELECTOR_RED, 0, 0, 100, 10, -500, 500 }, + { GIMP_COLOR_SELECTOR_GREEN, 0, 0, 100, 10, -500, 500 }, + { GIMP_COLOR_SELECTOR_BLUE, 0, 0, 100, 10, -500, 500 }, + { GIMP_COLOR_SELECTOR_ALPHA, 0, 0, 100, 10, 0, 100 }, + + { GIMP_COLOR_SELECTOR_LCH_LIGHTNESS, 0, 0, 100, 10, 0, 300 }, + { GIMP_COLOR_SELECTOR_LCH_CHROMA, 0, 0, 200, 10, 0, 300 }, + { GIMP_COLOR_SELECTOR_LCH_HUE, 0, 0, 360, 30, 0, 360 }, + + { GIMP_COLOR_SELECTOR_RED_U8, 0, 0, 255, 16, -1275, 1275 }, + { GIMP_COLOR_SELECTOR_GREEN_U8, 0, 0, 255, 16, -1275, 1275 }, + { GIMP_COLOR_SELECTOR_BLUE_U8, 0, 0, 255, 16, -1275, 1275 }, + { GIMP_COLOR_SELECTOR_ALPHA_U8, 0, 0, 255, 16, 0, 255 } +}; + + +static void +gimp_color_scales_class_init (GimpColorScalesClass *klass) +{ + GObjectClass *object_class = G_OBJECT_CLASS (klass); + GimpColorSelectorClass *selector_class = GIMP_COLOR_SELECTOR_CLASS (klass); + + object_class->dispose = gimp_color_scales_dispose; + object_class->get_property = gimp_color_scales_get_property; + object_class->set_property = gimp_color_scales_set_property; + + selector_class->name = _("Scales"); + selector_class->help_id = "gimp-colorselector-scales"; + selector_class->icon_name = GIMP_ICON_DIALOG_TOOL_OPTIONS; + selector_class->set_toggles_visible = gimp_color_scales_togg_visible; + selector_class->set_toggles_sensitive = gimp_color_scales_togg_sensitive; + selector_class->set_show_alpha = gimp_color_scales_set_show_alpha; + selector_class->set_color = gimp_color_scales_set_color; + selector_class->set_channel = gimp_color_scales_set_channel; + selector_class->set_model_visible = gimp_color_scales_set_model_visible; + selector_class->set_config = gimp_color_scales_set_config; + + g_object_class_install_property (object_class, PROP_SHOW_RGB_U8, + g_param_spec_boolean ("show-rgb-u8", + "Show RGB 0..255", + "Show RGB 0..255 scales", + FALSE, + GIMP_PARAM_READWRITE | + G_PARAM_CONSTRUCT)); + + fish_rgb_to_lch = babl_fish (babl_format ("R'G'B'A double"), + babl_format ("CIE LCH(ab) alpha double")); + fish_lch_to_rgb = babl_fish (babl_format ("CIE LCH(ab) alpha double"), + babl_format ("R'G'B'A double")); +} + +static GtkWidget * +create_group (GimpColorScales *scales, + GSList **radio_group, + GtkSizeGroup *size_group0, + GtkSizeGroup *size_group1, + GtkSizeGroup *size_group2, + GimpColorSelectorChannel first_channel, + GimpColorSelectorChannel last_channel) +{ + GimpColorSelector *selector = GIMP_COLOR_SELECTOR (scales); + GtkWidget *table; + GEnumClass *enum_class; + gint row; + gint i; + + table = gtk_table_new (last_channel - first_channel + 1, 4, FALSE); + gtk_table_set_row_spacings (GTK_TABLE (table), 1); + gtk_table_set_col_spacing (GTK_TABLE (table), 0, 0); + + enum_class = g_type_class_ref (GIMP_TYPE_COLOR_SELECTOR_CHANNEL); + + for (i = first_channel, row = 0; i <= last_channel; i++, row++) + { + GimpEnumDesc *enum_desc; + gint enum_value = i; + gboolean is_u8 = FALSE; + + if (enum_value >= GIMP_COLOR_SELECTOR_RED_U8 && + enum_value <= GIMP_COLOR_SELECTOR_ALPHA_U8) + { + enum_value -= 7; + is_u8 = TRUE; + } + + enum_desc = gimp_enum_get_desc (enum_class, enum_value); + + if (i == GIMP_COLOR_SELECTOR_ALPHA || + i == GIMP_COLOR_SELECTOR_ALPHA_U8) + { + /* just to allocate the space via the size group */ + scales->toggles[i] = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 0); + } + else + { + scales->toggles[i] = gtk_radio_button_new (*radio_group); + *radio_group = + gtk_radio_button_get_group (GTK_RADIO_BUTTON (scales->toggles[i])); + + if (enum_value == gimp_color_selector_get_channel (selector)) + gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (scales->toggles[i]), + TRUE); + + if (is_u8) + { + /* bind the RGB U8 toggles to the RGB percent toggles */ + g_object_bind_property (scales->toggles[i - 7], "active", + scales->toggles[i], "active", + G_BINDING_SYNC_CREATE | + G_BINDING_BIDIRECTIONAL); + } + else + { + g_signal_connect (scales->toggles[i], "toggled", + G_CALLBACK (gimp_color_scales_toggle_changed), + scales); + } + } + + gtk_table_attach (GTK_TABLE (table), scales->toggles[i], + 0, 1, row, row + 1, + GTK_SHRINK, GTK_EXPAND, 0, 0); + + if (gimp_color_selector_get_toggles_visible (selector)) + gtk_widget_show (scales->toggles[i]); + + gimp_help_set_help_data (scales->toggles[i], + gettext (enum_desc->value_help), NULL); + + gtk_size_group_add_widget (size_group0, scales->toggles[i]); + + scales->adjustments[i] = (GtkAdjustment *) + gimp_color_scale_entry_new (GTK_TABLE (table), 1, row, + gettext (enum_desc->value_desc), + -1, -1, + scale_defs[i].default_value, + scale_defs[i].scale_min_value, + scale_defs[i].scale_max_value, + 1.0, + scale_defs[i].scale_inc, + 1, + gettext (enum_desc->value_help), + NULL); + + gtk_adjustment_configure (scales->adjustments[i], + scale_defs[i].default_value, + scale_defs[i].spin_min_value, + scale_defs[i].spin_max_value, + 1.0, + scale_defs[i].scale_inc, + 0); + + scales->scales[i] = GIMP_SCALE_ENTRY_SCALE (scales->adjustments[i]); + g_object_add_weak_pointer (G_OBJECT (scales->scales[i]), + (gpointer) &scales->scales[i]); + + gimp_color_scale_set_channel (GIMP_COLOR_SCALE (scales->scales[i]), + enum_value); + gtk_size_group_add_widget (size_group1, scales->scales[i]); + + gtk_size_group_add_widget (size_group2, + GIMP_SCALE_ENTRY_SPINBUTTON (scales->adjustments[i])); + + g_signal_connect (scales->adjustments[i], "value-changed", + G_CALLBACK (gimp_color_scales_scale_changed), + scales); + } + + g_type_class_unref (enum_class); + + return table; +} + +static void +gimp_color_scales_init (GimpColorScales *scales) +{ + GimpColorSelector *selector = GIMP_COLOR_SELECTOR (scales); + GtkSizeGroup *size_group0; + GtkSizeGroup *size_group1; + GtkSizeGroup *size_group2; + GtkWidget *hbox; + GtkWidget *radio1; + GtkWidget *radio2; + GtkWidget *table; + GSList *main_group; + GSList *u8_group; + GSList *radio_group; + + gtk_box_set_spacing (GTK_BOX (scales), 5); + + /* don't need the toggles for our own operation */ + selector->toggles_visible = FALSE; + + hbox = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 4); + gtk_box_pack_start (GTK_BOX (scales), hbox, 0, 0, FALSE); + gtk_widget_show (hbox); + + main_group = NULL; + u8_group = NULL; + + scales->dummy_u8_toggle = gtk_radio_button_new (NULL); + g_object_ref_sink (scales->dummy_u8_toggle); + u8_group = gtk_radio_button_get_group (GTK_RADIO_BUTTON (scales->dummy_u8_toggle)); + + size_group0 = gtk_size_group_new (GTK_SIZE_GROUP_HORIZONTAL); + size_group1 = gtk_size_group_new (GTK_SIZE_GROUP_HORIZONTAL); + size_group2 = gtk_size_group_new (GTK_SIZE_GROUP_HORIZONTAL); + + scales->rgb_percent_group = + table = create_group (scales, &main_group, + size_group0, size_group1, size_group2, + GIMP_COLOR_SELECTOR_RED, + GIMP_COLOR_SELECTOR_BLUE); + gtk_box_pack_start (GTK_BOX (scales), table, FALSE, FALSE, 0); + + scales->rgb_u8_group = + table = create_group (scales, &u8_group, + size_group0, size_group1, size_group2, + GIMP_COLOR_SELECTOR_RED_U8, + GIMP_COLOR_SELECTOR_BLUE_U8); + gtk_box_pack_start (GTK_BOX (scales), table, FALSE, FALSE, 0); + + scales->lch_group = + table = create_group (scales, &main_group, + size_group0, size_group1, size_group2, + GIMP_COLOR_SELECTOR_LCH_LIGHTNESS, + GIMP_COLOR_SELECTOR_LCH_HUE); + gtk_box_pack_start (GTK_BOX (scales), table, FALSE, FALSE, 0); + + scales->hsv_group = + table = create_group (scales, &main_group, + size_group0, size_group1, size_group2, + GIMP_COLOR_SELECTOR_HUE, + GIMP_COLOR_SELECTOR_VALUE); + gtk_box_pack_start (GTK_BOX (scales), table, FALSE, FALSE, 0); + + scales->alpha_percent_group = + table = create_group (scales, &main_group, + size_group0, size_group1, size_group2, + GIMP_COLOR_SELECTOR_ALPHA, + GIMP_COLOR_SELECTOR_ALPHA); + gtk_box_pack_start (GTK_BOX (scales), table, FALSE, FALSE, 0); + + scales->alpha_u8_group = + table = create_group (scales, &u8_group, + size_group0, size_group1, size_group2, + GIMP_COLOR_SELECTOR_ALPHA_U8, + GIMP_COLOR_SELECTOR_ALPHA_U8); + gtk_box_pack_start (GTK_BOX (scales), table, FALSE, FALSE, 0); + + g_object_unref (size_group0); + g_object_unref (size_group1); + g_object_unref (size_group2); + + gimp_color_scales_update_visible (scales); + + radio_group = NULL; + + radio1 = gtk_radio_button_new_with_label (NULL, _("0..100")); + radio_group = gtk_radio_button_get_group (GTK_RADIO_BUTTON (radio1)); + radio2 = gtk_radio_button_new_with_label (radio_group, _("0..255")); + + gtk_toggle_button_set_mode (GTK_TOGGLE_BUTTON (radio1), FALSE); + gtk_toggle_button_set_mode (GTK_TOGGLE_BUTTON (radio2), FALSE); + + gtk_box_pack_start (GTK_BOX (hbox), radio1, FALSE, FALSE, 0); + gtk_box_pack_start (GTK_BOX (hbox), radio2, FALSE, FALSE, 0); + + gtk_widget_show (radio1); + gtk_widget_show (radio2); + + if (scales->show_rgb_u8) + gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (radio2), TRUE); + + g_object_bind_property (G_OBJECT (radio2), "active", + G_OBJECT (scales), "show-rgb-u8", + G_BINDING_SYNC_CREATE | + G_BINDING_BIDIRECTIONAL); + + radio_group = NULL; + + radio1 = gtk_radio_button_new_with_label (NULL, _("LCh")); + radio_group = gtk_radio_button_get_group (GTK_RADIO_BUTTON (radio1)); + radio2 = gtk_radio_button_new_with_label (radio_group, _("HSV")); + + gtk_toggle_button_set_mode (GTK_TOGGLE_BUTTON (radio1), FALSE); + gtk_toggle_button_set_mode (GTK_TOGGLE_BUTTON (radio2), FALSE); + + gtk_box_pack_end (GTK_BOX (hbox), radio2, FALSE, FALSE, 0); + gtk_box_pack_end (GTK_BOX (hbox), radio1, FALSE, FALSE, 0); + + gtk_widget_show (radio1); + gtk_widget_show (radio2); + + if (gimp_color_selector_get_model_visible (selector, + GIMP_COLOR_SELECTOR_MODEL_HSV)) + gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (radio2), TRUE); + + g_signal_connect (radio1, "toggled", + G_CALLBACK (gimp_color_scales_toggle_lch_hsv), + scales); +} + +static void +gimp_color_scales_dispose (GObject *object) +{ + GimpColorScales *scales = GIMP_COLOR_SCALES (object); + + g_clear_object (&scales->dummy_u8_toggle); + + G_OBJECT_CLASS (parent_class)->dispose (object); +} + +static void +gimp_color_scales_get_property (GObject *object, + guint property_id, + GValue *value, + GParamSpec *pspec) +{ + GimpColorScales *scales = GIMP_COLOR_SCALES (object); + + switch (property_id) + { + case PROP_SHOW_RGB_U8: + g_value_set_boolean (value, scales->show_rgb_u8); + break; + + default: + G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec); + break; + } +} + +static void +gimp_color_scales_set_property (GObject *object, + guint property_id, + const GValue *value, + GParamSpec *pspec) +{ + GimpColorScales *scales = GIMP_COLOR_SCALES (object); + + switch (property_id) + { + case PROP_SHOW_RGB_U8: + gimp_color_scales_set_show_rgb_u8 (scales, g_value_get_boolean (value)); + break; + + default: + G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec); + break; + } +} + +static void +gimp_color_scales_togg_sensitive (GimpColorSelector *selector, + gboolean sensitive) +{ + GimpColorScales *scales = GIMP_COLOR_SCALES (selector); + gint i; + + for (i = 0; i < G_N_ELEMENTS (scale_defs); i++) + if (scales->toggles[i]) + gtk_widget_set_sensitive (scales->toggles[i], sensitive); +} + +static void +gimp_color_scales_togg_visible (GimpColorSelector *selector, + gboolean visible) +{ + GimpColorScales *scales = GIMP_COLOR_SCALES (selector); + gint i; + + for (i = 0; i < G_N_ELEMENTS (scale_defs); i++) + if (scales->toggles[i]) + gtk_widget_set_visible (scales->toggles[i], visible); +} + +static void +gimp_color_scales_set_show_alpha (GimpColorSelector *selector, + gboolean show_alpha) +{ + gimp_color_scales_update_visible (GIMP_COLOR_SCALES (selector)); +} + +static void +gimp_color_scales_set_color (GimpColorSelector *selector, + const GimpRGB *rgb, + const GimpHSV *hsv) +{ + GimpColorScales *scales = GIMP_COLOR_SCALES (selector); + + gimp_color_scales_update_scales (scales, -1); +} + +static void +gimp_color_scales_set_channel (GimpColorSelector *selector, + GimpColorSelectorChannel channel) +{ + GimpColorScales *scales = GIMP_COLOR_SCALES (selector); + + if (GTK_IS_RADIO_BUTTON (scales->toggles[channel])) + { + g_signal_handlers_block_by_func (scales->toggles[channel], + gimp_color_scales_toggle_changed, + scales); + + gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (scales->toggles[channel]), + TRUE); + + g_signal_handlers_unblock_by_func (scales->toggles[channel], + gimp_color_scales_toggle_changed, + scales); + } +} + +static void +gimp_color_scales_set_model_visible (GimpColorSelector *selector, + GimpColorSelectorModel model, + gboolean visible) +{ + gimp_color_scales_update_visible (GIMP_COLOR_SCALES (selector)); +} + +static void +gimp_color_scales_set_config (GimpColorSelector *selector, + GimpColorConfig *config) +{ + GimpColorScales *scales = GIMP_COLOR_SCALES (selector); + gint i; + + for (i = 0; i < G_N_ELEMENTS (scale_defs); i++) + { + if (scales->scales[i]) + gimp_color_scale_set_color_config (GIMP_COLOR_SCALE (scales->scales[i]), + config); + } +} + + +/* public functions */ + +void +gimp_color_scales_set_show_rgb_u8 (GimpColorScales *scales, + gboolean show_rgb_u8) +{ + g_return_if_fail (GIMP_IS_COLOR_SCALES (scales)); + + show_rgb_u8 = show_rgb_u8 ? TRUE : FALSE; + + if (show_rgb_u8 != scales->show_rgb_u8) + { + scales->show_rgb_u8 = show_rgb_u8; + + g_object_notify (G_OBJECT (scales), "show-rgb-u8"); + + gimp_color_scales_update_visible (scales); + } +} + +gboolean +gimp_color_scales_get_show_rgb_u8 (GimpColorScales *scales) +{ + g_return_val_if_fail (GIMP_IS_COLOR_SCALES (scales), FALSE); + + return scales->show_rgb_u8; +} + + +/* private functions */ + +static void +gimp_color_scales_update_visible (GimpColorScales *scales) +{ + GimpColorSelector *selector = GIMP_COLOR_SELECTOR (scales); + gboolean show_alpha; + gboolean rgb_visible; + gboolean lch_visible; + gboolean hsv_visible; + + show_alpha = gimp_color_selector_get_show_alpha (selector); + rgb_visible = gimp_color_selector_get_model_visible (selector, + GIMP_COLOR_SELECTOR_MODEL_RGB); + lch_visible = gimp_color_selector_get_model_visible (selector, + GIMP_COLOR_SELECTOR_MODEL_LCH); + hsv_visible = gimp_color_selector_get_model_visible (selector, + GIMP_COLOR_SELECTOR_MODEL_HSV); + + gtk_widget_set_visible (scales->rgb_percent_group, + rgb_visible && ! scales->show_rgb_u8); + gtk_widget_set_visible (scales->rgb_u8_group, + rgb_visible && scales->show_rgb_u8); + + gtk_widget_set_visible (scales->lch_group, lch_visible); + gtk_widget_set_visible (scales->hsv_group, hsv_visible); + + gtk_widget_set_visible (scales->alpha_percent_group, + show_alpha && ! scales->show_rgb_u8); + gtk_widget_set_visible (scales->alpha_u8_group, + show_alpha && scales->show_rgb_u8); +} + +static void +gimp_color_scales_update_scales (GimpColorScales *scales, + gint skip) +{ + GimpColorSelector *selector = GIMP_COLOR_SELECTOR (scales); + GimpLCH lch; + gdouble values[G_N_ELEMENTS (scale_defs)]; + gint i; + + babl_process (fish_rgb_to_lch, &selector->rgb, &lch, 1); + + values[GIMP_COLOR_SELECTOR_HUE] = selector->hsv.h * 360.0; + values[GIMP_COLOR_SELECTOR_SATURATION] = selector->hsv.s * 100.0; + values[GIMP_COLOR_SELECTOR_VALUE] = selector->hsv.v * 100.0; + + values[GIMP_COLOR_SELECTOR_RED] = selector->rgb.r * 100.0; + values[GIMP_COLOR_SELECTOR_GREEN] = selector->rgb.g * 100.0; + values[GIMP_COLOR_SELECTOR_BLUE] = selector->rgb.b * 100.0; + values[GIMP_COLOR_SELECTOR_ALPHA] = selector->rgb.a * 100.0; + + values[GIMP_COLOR_SELECTOR_LCH_LIGHTNESS] = lch.l; + values[GIMP_COLOR_SELECTOR_LCH_CHROMA] = lch.c; + values[GIMP_COLOR_SELECTOR_LCH_HUE] = lch.h; + + values[GIMP_COLOR_SELECTOR_RED_U8] = selector->rgb.r * 255.0; + values[GIMP_COLOR_SELECTOR_GREEN_U8] = selector->rgb.g * 255.0; + values[GIMP_COLOR_SELECTOR_BLUE_U8] = selector->rgb.b * 255.0; + values[GIMP_COLOR_SELECTOR_ALPHA_U8] = selector->rgb.a * 255.0; + + for (i = 0; i < G_N_ELEMENTS (scale_defs); i++) + { + if (i != skip) + { + g_signal_handlers_block_by_func (scales->adjustments[i], + gimp_color_scales_scale_changed, + scales); + + gtk_adjustment_set_value (scales->adjustments[i], values[i]); + + g_signal_handlers_unblock_by_func (scales->adjustments[i], + gimp_color_scales_scale_changed, + scales); + } + + gimp_color_scale_set_color (GIMP_COLOR_SCALE (scales->scales[i]), + &selector->rgb, &selector->hsv); + } +} + +static void +gimp_color_scales_toggle_changed (GtkWidget *widget, + GimpColorScales *scales) +{ + GimpColorSelector *selector = GIMP_COLOR_SELECTOR (scales); + + if (gtk_toggle_button_get_active (GTK_TOGGLE_BUTTON (widget))) + { + gint i; + + for (i = 0; i < G_N_ELEMENTS (scale_defs); i++) + { + if (widget == scales->toggles[i]) + { + gimp_color_selector_set_channel (selector, i); + + if (i < GIMP_COLOR_SELECTOR_RED || + i > GIMP_COLOR_SELECTOR_BLUE) + { + gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (scales->dummy_u8_toggle), + TRUE); + } + + break; + } + } + } +} + +static void +gimp_color_scales_scale_changed (GtkAdjustment *adjustment, + GimpColorScales *scales) +{ + GimpColorSelector *selector = GIMP_COLOR_SELECTOR (scales); + gdouble value = gtk_adjustment_get_value (adjustment); + GimpLCH lch; + gint i; + + for (i = 0; i < G_N_ELEMENTS (scale_defs); i++) + if (scales->adjustments[i] == adjustment) + break; + + switch (i) + { + case GIMP_COLOR_SELECTOR_HUE: + selector->hsv.h = value / 360.0; + break; + + case GIMP_COLOR_SELECTOR_SATURATION: + selector->hsv.s = value / 100.0; + break; + + case GIMP_COLOR_SELECTOR_VALUE: + selector->hsv.v = value / 100.0; + break; + + case GIMP_COLOR_SELECTOR_RED: + selector->rgb.r = value / 100.0; + break; + + case GIMP_COLOR_SELECTOR_GREEN: + selector->rgb.g = value / 100.0; + break; + + case GIMP_COLOR_SELECTOR_BLUE: + selector->rgb.b = value / 100.0; + break; + + case GIMP_COLOR_SELECTOR_ALPHA: + selector->hsv.a = selector->rgb.a = value / 100.0; + break; + + case GIMP_COLOR_SELECTOR_LCH_LIGHTNESS: + babl_process (fish_rgb_to_lch, &selector->rgb, &lch, 1); + lch.l = value; + break; + + case GIMP_COLOR_SELECTOR_LCH_CHROMA: + babl_process (fish_rgb_to_lch, &selector->rgb, &lch, 1); + lch.c = value; + break; + + case GIMP_COLOR_SELECTOR_LCH_HUE: + babl_process (fish_rgb_to_lch, &selector->rgb, &lch, 1); + lch.h = value; + break; + + case GIMP_COLOR_SELECTOR_RED_U8: + selector->rgb.r = value / 255.0; + break; + + case GIMP_COLOR_SELECTOR_GREEN_U8: + selector->rgb.g = value / 255.0; + break; + + case GIMP_COLOR_SELECTOR_BLUE_U8: + selector->rgb.b = value / 255.0; + break; + + case GIMP_COLOR_SELECTOR_ALPHA_U8: + selector->hsv.a = selector->rgb.a = value / 255.0; + break; + } + + if ((i >= GIMP_COLOR_SELECTOR_HUE) && + (i <= GIMP_COLOR_SELECTOR_VALUE)) + { + gimp_hsv_to_rgb (&selector->hsv, &selector->rgb); + } + else if ((i >= GIMP_COLOR_SELECTOR_LCH_LIGHTNESS) && + (i <= GIMP_COLOR_SELECTOR_LCH_HUE)) + { + babl_process (fish_lch_to_rgb, &lch, &selector->rgb, 1); + gimp_rgb_to_hsv (&selector->rgb, &selector->hsv); + } + else if ((i >= GIMP_COLOR_SELECTOR_RED) && + (i <= GIMP_COLOR_SELECTOR_BLUE)) + { + gimp_rgb_to_hsv (&selector->rgb, &selector->hsv); + } + else if ((i >= GIMP_COLOR_SELECTOR_RED_U8) && + (i <= GIMP_COLOR_SELECTOR_BLUE_U8)) + { + gimp_rgb_to_hsv (&selector->rgb, &selector->hsv); + } + + gimp_color_scales_update_scales (scales, i); + + gimp_color_selector_color_changed (selector); +} + +static void +gimp_color_scales_toggle_lch_hsv (GtkToggleButton *toggle, + GimpColorScales *scales) +{ + GimpColorSelector *selector = GIMP_COLOR_SELECTOR (scales); + + if (gtk_toggle_button_get_active (toggle)) + { + gimp_color_selector_set_model_visible (selector, + GIMP_COLOR_SELECTOR_MODEL_LCH, + TRUE); + gimp_color_selector_set_model_visible (selector, + GIMP_COLOR_SELECTOR_MODEL_HSV, + FALSE); + } + else + { + gimp_color_selector_set_model_visible (selector, + GIMP_COLOR_SELECTOR_MODEL_LCH, + FALSE); + gimp_color_selector_set_model_visible (selector, + GIMP_COLOR_SELECTOR_MODEL_HSV, + TRUE); + } +} |