Adding upstream version 2.10.34.upstream/2.10.34upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 324 insertions, 0 deletions

diff --git a/libgimpwidgets/gimpcolorhexentry.c b/libgimpwidgets/gimpcolorhexentry.c
new file mode 100644
index 0000000..8c7474f
--- /dev/null
+++ b/libgimpwidgets/gimpcolorhexentry.c
@@ -0,0 +1,324 @@
+/* LIBGIMP - The GIMP Library
+ * Copyright (C) 1995-1997 Peter Mattis and Spencer Kimball
+ *
+ * gimpcolorhexentry.c
+ * Copyright (C) 2004  Sven Neumann <sven@gimp.org>
+ *
+ * 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 <gdk/gdkkeysyms.h>
+
+#include "libgimpcolor/gimpcolor.h"
+
+#include "gimpwidgetstypes.h"
+
+#include "gimpcellrenderercolor.h"
+#include "gimpcolorhexentry.h"
+#include "gimphelpui.h"
+
+#include "libgimp/libgimp-intl.h"
+
+
+/**
+ * SECTION: gimpcolorhexentry
+ * @title: GimpColorHexEntry
+ * @short_description: Widget for entering a color's hex triplet.
+ *
+ * Widget for entering a color's hex triplet.
+ **/
+
+
+enum
+{
+  COLOR_CHANGED,
+  LAST_SIGNAL
+};
+
+enum
+{
+  COLUMN_NAME,
+  COLUMN_COLOR,
+  NUM_COLUMNS
+};
+
+
+static void      gimp_color_hex_entry_constructed (GObject            *object);
+
+static gboolean  gimp_color_hex_entry_events      (GtkWidget          *widget,
+                                                   GdkEvent           *event);
+
+static gboolean  gimp_color_hex_entry_matched     (GtkEntryCompletion *completion,
+                                                   GtkTreeModel       *model,
+                                                   GtkTreeIter        *iter,
+                                                   GimpColorHexEntry  *entry);
+
+
+G_DEFINE_TYPE (GimpColorHexEntry, gimp_color_hex_entry, GTK_TYPE_ENTRY)
+
+#define parent_class gimp_color_hex_entry_parent_class
+
+static guint entry_signals[LAST_SIGNAL] = { 0 };
+
+
+static void
+gimp_color_hex_entry_class_init (GimpColorHexEntryClass *klass)
+{
+  GObjectClass *object_class = G_OBJECT_CLASS (klass);
+
+  entry_signals[COLOR_CHANGED] =
+    g_signal_new ("color-changed",
+                  G_TYPE_FROM_CLASS (klass),
+                  G_SIGNAL_RUN_FIRST,
+                  G_STRUCT_OFFSET (GimpColorHexEntryClass, color_changed),
+                  NULL, NULL,
+                  g_cclosure_marshal_VOID__VOID,
+                  G_TYPE_NONE, 0);
+
+  object_class->constructed = gimp_color_hex_entry_constructed;
+
+  klass->color_changed      = NULL;
+}
+
+static void
+gimp_color_hex_entry_init (GimpColorHexEntry *entry)
+{
+  GtkEntryCompletion  *completion;
+  GtkCellRenderer     *cell;
+  GtkListStore        *store;
+  GimpRGB             *colors;
+  const gchar        **names;
+  gint                 num_colors;
+  gint                 i;
+
+  /* GtkEntry's minimum size is way too large, set a reasonable one
+   * for our use case
+   */
+  gtk_entry_set_width_chars (GTK_ENTRY (entry), 8);
+
+  gimp_help_set_help_data (GTK_WIDGET (entry),
+                           _("Hexadecimal color notation as used in HTML and "
+                             "CSS.  This entry also accepts CSS color names."),
+                           NULL);
+
+  gimp_rgba_set (&entry->color, 0.0, 0.0, 0.0, 1.0);
+
+  store = gtk_list_store_new (NUM_COLUMNS, G_TYPE_STRING, GIMP_TYPE_RGB);
+
+  num_colors = gimp_rgb_list_names (&names, &colors);
+
+  for (i = 0; i < num_colors; i++)
+    {
+      GtkTreeIter  iter;
+
+      gtk_list_store_append (store, &iter);
+      gtk_list_store_set (store, &iter,
+                          COLUMN_NAME,  names[i],
+                          COLUMN_COLOR, colors + i,
+                          -1);
+    }
+
+  g_free (colors);
+  g_free (names);
+
+  completion = g_object_new (GTK_TYPE_ENTRY_COMPLETION,
+                             "model", store,
+                             NULL);
+  g_object_unref (store);
+
+  cell = gimp_cell_renderer_color_new ();
+  gtk_cell_layout_pack_start (GTK_CELL_LAYOUT (completion), cell, FALSE);
+  gtk_cell_layout_set_attributes (GTK_CELL_LAYOUT (completion), cell,
+                                  "color", COLUMN_COLOR,
+                                  NULL);
+
+  gtk_entry_completion_set_text_column (completion, COLUMN_NAME);
+
+  gtk_entry_set_completion (GTK_ENTRY (entry), completion);
+  g_object_unref (completion);
+
+  g_signal_connect (entry, "focus-out-event",
+                    G_CALLBACK (gimp_color_hex_entry_events),
+                    NULL);
+  g_signal_connect (entry, "key-press-event",
+                    G_CALLBACK (gimp_color_hex_entry_events),
+                    NULL);
+
+  g_signal_connect (completion, "match-selected",
+                    G_CALLBACK (gimp_color_hex_entry_matched),
+                    entry);
+}
+
+static void
+gimp_color_hex_entry_constructed (GObject *object)
+{
+  G_OBJECT_CLASS (parent_class)->constructed (object);
+
+  gtk_entry_set_text (GTK_ENTRY (object), "000000");
+}
+
+/**
+ * gimp_color_hex_entry_new:
+ *
+ * Return value: a new #GimpColorHexEntry widget
+ *
+ * Since: 2.2
+ **/
+GtkWidget *
+gimp_color_hex_entry_new (void)
+{
+  return g_object_new (GIMP_TYPE_COLOR_HEX_ENTRY, NULL);
+}
+
+/**
+ * gimp_color_hex_entry_set_color:
+ * @entry: a #GimpColorHexEntry widget
+ * @color: pointer to a #GimpRGB
+ *
+ * Sets the color displayed by a #GimpColorHexEntry. If the new color
+ * is different to the previously set color, the "color-changed"
+ * signal is emitted.
+ *
+ * Since: 2.2
+ **/
+void
+gimp_color_hex_entry_set_color (GimpColorHexEntry *entry,
+                                const GimpRGB     *color)
+{
+  g_return_if_fail (GIMP_IS_COLOR_HEX_ENTRY (entry));
+  g_return_if_fail (color != NULL);
+
+  if (gimp_rgb_distance (&entry->color, color) > 0.0)
+    {
+      gchar   buffer[8];
+      guchar  r, g, b;
+
+      gimp_rgb_set (&entry->color, color->r, color->g, color->b);
+      gimp_rgb_clamp (&entry->color);
+
+      gimp_rgb_get_uchar (&entry->color, &r, &g, &b);
+      g_snprintf (buffer, sizeof (buffer), "%.2x%.2x%.2x", r, g, b);
+
+      gtk_entry_set_text (GTK_ENTRY (entry), buffer);
+
+      /* move cursor to the end */
+      gtk_editable_set_position (GTK_EDITABLE (entry), -1);
+
+     g_signal_emit (entry, entry_signals[COLOR_CHANGED], 0);
+    }
+}
+
+/**
+ * gimp_color_hex_entry_get_color:
+ * @entry: a #GimpColorHexEntry widget
+ * @color: pointer to a #GimpRGB
+ *
+ * Retrieves the color value displayed by a #GimpColorHexEntry.
+ *
+ * Since: 2.2
+ **/
+void
+gimp_color_hex_entry_get_color (GimpColorHexEntry *entry,
+                                GimpRGB           *color)
+{
+  g_return_if_fail (GIMP_IS_COLOR_HEX_ENTRY (entry));
+  g_return_if_fail (color != NULL);
+
+  *color = entry->color;
+}
+
+static gboolean
+gimp_color_hex_entry_events (GtkWidget *widget,
+                             GdkEvent  *event)
+{
+  GimpColorHexEntry *entry = GIMP_COLOR_HEX_ENTRY (widget);
+
+  switch (event->type)
+    {
+    case GDK_KEY_PRESS:
+      {
+        GdkEventKey *kevent = (GdkEventKey *) event;
+
+        if (kevent->keyval != GDK_KEY_Return   &&
+            kevent->keyval != GDK_KEY_KP_Enter &&
+            kevent->keyval != GDK_KEY_ISO_Enter)
+          break;
+        /*  else fall through  */
+      }
+
+    case GDK_FOCUS_CHANGE:
+      {
+        const gchar *text;
+        gchar        buffer[8];
+        guchar       r, g, b;
+
+        text = gtk_entry_get_text (GTK_ENTRY (widget));
+
+        gimp_rgb_get_uchar (&entry->color, &r, &g, &b);
+        g_snprintf (buffer, sizeof (buffer), "%.2x%.2x%.2x", r, g, b);
+
+        if (g_ascii_strcasecmp (buffer, text) != 0)
+          {
+            GimpRGB  color;
+            gsize    len = strlen (text);
+
+            if (len > 0 &&
+                (gimp_rgb_parse_hex (&color, text, len) ||
+                 gimp_rgb_parse_name (&color, text, -1)))
+              {
+                gimp_color_hex_entry_set_color (entry, &color);
+              }
+            else
+              {
+                gtk_entry_set_text (GTK_ENTRY (entry), buffer);
+              }
+          }
+      }
+      break;
+
+    default:
+      /*  do nothing  */
+      break;
+    }
+
+  return FALSE;
+}
+
+static gboolean
+gimp_color_hex_entry_matched (GtkEntryCompletion *completion,
+                              GtkTreeModel       *model,
+                              GtkTreeIter        *iter,
+                              GimpColorHexEntry  *entry)
+{
+  gchar   *name;
+  GimpRGB  color;
+
+  gtk_tree_model_get (model, iter,
+                      COLUMN_NAME, &name,
+                      -1);
+
+  if (gimp_rgb_parse_name (&color, name, -1))
+    gimp_color_hex_entry_set_color (entry, &color);
+
+  g_free (name);
+
+  return TRUE;
+}