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-rw-r--r--app/widgets/gimpcolorhistory.c325
1 files changed, 325 insertions, 0 deletions
diff --git a/app/widgets/gimpcolorhistory.c b/app/widgets/gimpcolorhistory.c
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+++ b/app/widgets/gimpcolorhistory.c
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+/* GIMP - The GNU Image Manipulation Program
+ * Copyright (C) 1995 Spencer Kimball and Peter Mattis
+ *
+ * gimpcolorhistory.c
+ * Copyright (C) 2015 Jehan <jehan@girinstud.io>
+ *
+ * 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 3 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, see <https://www.gnu.org/licenses/>.
+ */
+
+#include "config.h"
+
+#include <gegl.h>
+#include <gtk/gtk.h>
+
+#include "libgimpwidgets/gimpwidgets.h"
+
+#include "widgets-types.h"
+
+#include "config/gimpcoreconfig.h"
+
+#include "core/gimp.h"
+#include "core/gimp-palettes.h"
+#include "core/gimpcontext.h"
+#include "core/gimpmarshal.h"
+#include "core/gimppalettemru.h"
+
+#include "gimpcolorhistory.h"
+
+#include "gimp-intl.h"
+
+enum
+{
+ COLOR_SELECTED,
+ LAST_SIGNAL
+};
+
+enum
+{
+ PROP_0,
+ PROP_CONTEXT,
+ PROP_HISTORY_SIZE,
+};
+
+
+#define DEFAULT_HISTORY_SIZE 12
+#define COLOR_AREA_SIZE 20
+
+static void gimp_color_history_constructed (GObject *object);
+static void gimp_color_history_finalize (GObject *object);
+static void gimp_color_history_set_property (GObject *object,
+ guint property_id,
+ const GValue *value,
+ GParamSpec *pspec);
+static void gimp_color_history_get_property (GObject *object,
+ guint property_id,
+ GValue *value,
+ GParamSpec *pspec);
+
+static void gimp_color_history_color_clicked (GtkWidget *widget,
+ GimpColorHistory *history);
+
+static void gimp_color_history_palette_dirty (GimpPalette *palette,
+ GimpColorHistory *history);
+
+static void gimp_color_history_color_changed (GtkWidget *widget,
+ gpointer data);
+
+
+G_DEFINE_TYPE (GimpColorHistory, gimp_color_history, GTK_TYPE_TABLE)
+
+#define parent_class gimp_color_history_parent_class
+
+static guint history_signals[LAST_SIGNAL] = { 0 };
+
+static void
+gimp_color_history_class_init (GimpColorHistoryClass *klass)
+{
+ GObjectClass *object_class = G_OBJECT_CLASS (klass);
+
+ object_class->constructed = gimp_color_history_constructed;
+ object_class->set_property = gimp_color_history_set_property;
+ object_class->get_property = gimp_color_history_get_property;
+ object_class->finalize = gimp_color_history_finalize;
+
+ history_signals[COLOR_SELECTED] =
+ g_signal_new ("color-selected",
+ G_TYPE_FROM_CLASS (klass),
+ G_SIGNAL_RUN_FIRST,
+ G_STRUCT_OFFSET (GimpColorHistoryClass, color_selected),
+ NULL, NULL,
+ gimp_marshal_VOID__POINTER,
+ G_TYPE_NONE, 1,
+ G_TYPE_POINTER);
+
+ g_object_class_install_property (object_class, PROP_CONTEXT,
+ g_param_spec_object ("context", NULL, NULL,
+ GIMP_TYPE_CONTEXT,
+ GIMP_PARAM_READWRITE |
+ G_PARAM_CONSTRUCT));
+ g_object_class_install_property (object_class, PROP_HISTORY_SIZE,
+ g_param_spec_int ("history-size",
+ NULL, NULL,
+ 2, G_MAXINT,
+ DEFAULT_HISTORY_SIZE,
+ GIMP_PARAM_READWRITE |
+ G_PARAM_CONSTRUCT));
+
+ klass->color_selected = NULL;
+}
+
+static void
+gimp_color_history_init (GimpColorHistory *history)
+{
+ history->color_areas = NULL;
+}
+
+static void
+gimp_color_history_constructed (GObject *object)
+{
+ GimpColorHistory *history = GIMP_COLOR_HISTORY (object);
+ GimpPalette *palette;
+
+ G_OBJECT_CLASS (parent_class)->constructed (object);
+
+ palette = gimp_palettes_get_color_history (history->context->gimp);
+
+ g_signal_connect_object (palette, "dirty",
+ G_CALLBACK (gimp_color_history_palette_dirty),
+ G_OBJECT (history), 0);
+
+ gimp_color_history_palette_dirty (palette, history);
+}
+
+static void
+gimp_color_history_finalize (GObject *object)
+{
+ GimpColorHistory *history = GIMP_COLOR_HISTORY (object);
+
+ g_clear_pointer (&history->color_areas, g_free);
+
+ G_OBJECT_CLASS (parent_class)->finalize (object);
+}
+
+static void
+gimp_color_history_set_property (GObject *object,
+ guint property_id,
+ const GValue *value,
+ GParamSpec *pspec)
+{
+ GimpColorHistory *history = GIMP_COLOR_HISTORY (object);
+
+ switch (property_id)
+ {
+ case PROP_CONTEXT:
+ history->context = g_value_get_object (value);
+ break;
+ case PROP_HISTORY_SIZE:
+ {
+ GtkWidget *button;
+ gint i;
+
+ /* Destroy previous color buttons. */
+ gtk_container_foreach (GTK_CONTAINER (history),
+ (GtkCallback) gtk_widget_destroy, NULL);
+ history->history_size = g_value_get_int (value);
+ gtk_table_resize (GTK_TABLE (history),
+ 2, (history->history_size + 1)/ 2);
+ gtk_table_set_row_spacings (GTK_TABLE (history), 2);
+ gtk_table_set_col_spacings (GTK_TABLE (history), 2);
+ history->color_areas = g_realloc_n (history->color_areas,
+ history->history_size,
+ sizeof (GtkWidget*));
+ for (i = 0; i < history->history_size; i++)
+ {
+ GimpRGB black = { 0.0, 0.0, 0.0, 1.0 };
+ gint row, column;
+
+ column = i % (history->history_size / 2);
+ row = i / (history->history_size / 2);
+
+ button = gtk_button_new ();
+ gtk_widget_set_size_request (button, COLOR_AREA_SIZE, COLOR_AREA_SIZE);
+ gtk_table_attach_defaults (GTK_TABLE (history), button,
+ column, column + 1, row, row + 1);
+ gtk_widget_show (button);
+
+ history->color_areas[i] = gimp_color_area_new (&black,
+ GIMP_COLOR_AREA_SMALL_CHECKS,
+ GDK_BUTTON2_MASK);
+ gimp_color_area_set_color_config (GIMP_COLOR_AREA (history->color_areas[i]),
+ history->context->gimp->config->color_management);
+ gtk_container_add (GTK_CONTAINER (button), history->color_areas[i]);
+ gtk_widget_show (history->color_areas[i]);
+
+ g_signal_connect (button, "clicked",
+ G_CALLBACK (gimp_color_history_color_clicked),
+ history);
+
+ g_signal_connect (history->color_areas[i], "color-changed",
+ G_CALLBACK (gimp_color_history_color_changed),
+ GINT_TO_POINTER (i));
+ }
+ }
+ break;
+
+ default:
+ G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
+ break;
+ }
+}
+
+static void
+gimp_color_history_get_property (GObject *object,
+ guint property_id,
+ GValue *value,
+ GParamSpec *pspec)
+{
+ GimpColorHistory *history = GIMP_COLOR_HISTORY (object);
+
+ switch (property_id)
+ {
+ case PROP_CONTEXT:
+ g_value_set_object (value, history->context);
+ break;
+ case PROP_HISTORY_SIZE:
+ g_value_set_int (value, history->history_size);
+ break;
+
+ default:
+ G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
+ break;
+ }
+}
+
+/* Public Functions */
+
+GtkWidget *
+gimp_color_history_new (GimpContext *context,
+ gint history_size)
+{
+ GimpColorHistory *history;
+
+ g_return_val_if_fail (GIMP_IS_CONTEXT (context), NULL);
+
+ history = g_object_new (GIMP_TYPE_COLOR_HISTORY,
+ "context", context,
+ "history-size", history_size,
+ NULL);
+
+ return GTK_WIDGET (history);
+}
+
+/* Color history callback. */
+
+static void
+gimp_color_history_color_clicked (GtkWidget *widget,
+ GimpColorHistory *history)
+{
+ GimpColorArea *color_area;
+ GimpRGB color;
+
+ color_area = GIMP_COLOR_AREA (gtk_bin_get_child (GTK_BIN (widget)));
+
+ gimp_color_area_get_color (color_area, &color);
+
+ g_signal_emit (history, history_signals[COLOR_SELECTED], 0,
+ &color);
+}
+
+/* Color history palette callback. */
+
+static void
+gimp_color_history_palette_dirty (GimpPalette *palette,
+ GimpColorHistory *history)
+{
+ gint i;
+
+ for (i = 0; i < history->history_size; i++)
+ {
+ GimpPaletteEntry *entry = gimp_palette_get_entry (palette, i);
+ GimpRGB black = { 0.0, 0.0, 0.0, 1.0 };
+
+ g_signal_handlers_block_by_func (history->color_areas[i],
+ gimp_color_history_color_changed,
+ GINT_TO_POINTER (i));
+
+ gimp_color_area_set_color (GIMP_COLOR_AREA (history->color_areas[i]),
+ entry ? &entry->color : &black);
+
+ g_signal_handlers_unblock_by_func (history->color_areas[i],
+ gimp_color_history_color_changed,
+ GINT_TO_POINTER (i));
+ }
+}
+
+/* Color area callbacks. */
+
+static void
+gimp_color_history_color_changed (GtkWidget *widget,
+ gpointer data)
+{
+ GimpColorHistory *history;
+ GimpPalette *palette;
+ GimpRGB color;
+
+ history = GIMP_COLOR_HISTORY (gtk_widget_get_ancestor (widget,
+ GIMP_TYPE_COLOR_HISTORY));
+
+ palette = gimp_palettes_get_color_history (history->context->gimp);
+
+ gimp_color_area_get_color (GIMP_COLOR_AREA (widget), &color);
+
+ gimp_palette_set_entry_color (palette, GPOINTER_TO_INT (data), &color);
+}
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