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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:30:19 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:30:19 +0000 |
commit | 5c1676dfe6d2f3c837a5e074117b45613fd29a72 (patch) | |
tree | cbffb45144febf451e54061db2b21395faf94bfe /libgimpwidgets/gimpcolorhexentry.c | |
parent | Initial commit. (diff) | |
download | gimp-5c1676dfe6d2f3c837a5e074117b45613fd29a72.tar.xz gimp-5c1676dfe6d2f3c837a5e074117b45613fd29a72.zip |
Adding upstream version 2.10.34.upstream/2.10.34upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | libgimpwidgets/gimpcolorhexentry.c | 324 |
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; +} |