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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 /libgimp/gimppaletteselectbutton.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-- | libgimp/gimppaletteselectbutton.c | 488 |
1 files changed, 488 insertions, 0 deletions
diff --git a/libgimp/gimppaletteselectbutton.c b/libgimp/gimppaletteselectbutton.c new file mode 100644 index 0000000..ad4957f --- /dev/null +++ b/libgimp/gimppaletteselectbutton.c @@ -0,0 +1,488 @@ +/* LIBGIMP - The GIMP Library + * Copyright (C) 1995-1997 Peter Mattis and Spencer Kimball + * + * gimppaletteselectbutton.c + * Copyright (C) 2004 Michael Natterer <mitch@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 <gegl.h> +#include <gtk/gtk.h> + +#include "libgimpwidgets/gimpwidgets.h" + +#include "gimp.h" + +#include "gimpuitypes.h" +#include "gimppaletteselectbutton.h" +#include "gimpuimarshal.h" + +#include "libgimp-intl.h" + + +/** + * SECTION: gimppaletteselectbutton + * @title: GimpPaletteSelect + * @short_description: A button which pops up a palette select dialog. + * + * A button which pops up a palette select dialog. + **/ + + +#define GIMP_PALETTE_SELECT_BUTTON_GET_PRIVATE(obj) ((GimpPaletteSelectButtonPrivate *) gimp_palette_select_button_get_instance_private ((GimpPaletteSelectButton *) (obj))) + +typedef struct _GimpPaletteSelectButtonPrivate GimpPaletteSelectButtonPrivate; + +struct _GimpPaletteSelectButtonPrivate +{ + gchar *title; + + gchar *palette_name; /* Local copy */ + + GtkWidget *inside; + GtkWidget *label; +}; + +enum +{ + PALETTE_SET, + LAST_SIGNAL +}; + +enum +{ + PROP_0, + PROP_TITLE, + PROP_PALETTE_NAME +}; + + +/* local function prototypes */ + +static void gimp_palette_select_button_finalize (GObject *object); + +static void gimp_palette_select_button_set_property (GObject *object, + guint property_id, + const GValue *value, + GParamSpec *pspec); +static void gimp_palette_select_button_get_property (GObject *object, + guint property_id, + GValue *value, + GParamSpec *pspec); + +static void gimp_palette_select_button_clicked (GimpPaletteSelectButton *button); + +static void gimp_palette_select_button_callback (const gchar *palette_name, + gboolean dialog_closing, + gpointer user_data); + +static void gimp_palette_select_drag_data_received (GimpPaletteSelectButton *button, + GdkDragContext *context, + gint x, + gint y, + GtkSelectionData *selection, + guint info, + guint time); + +static GtkWidget * gimp_palette_select_button_create_inside (GimpPaletteSelectButton *palette_button); + + +static const GtkTargetEntry target = { "application/x-gimp-palette-name", 0 }; + +static guint palette_button_signals[LAST_SIGNAL] = { 0 }; + + +G_DEFINE_TYPE_WITH_PRIVATE (GimpPaletteSelectButton, gimp_palette_select_button, + GIMP_TYPE_SELECT_BUTTON) + + +static void +gimp_palette_select_button_class_init (GimpPaletteSelectButtonClass *klass) +{ + GObjectClass *object_class = G_OBJECT_CLASS (klass); + GimpSelectButtonClass *select_button_class = GIMP_SELECT_BUTTON_CLASS (klass); + + object_class->finalize = gimp_palette_select_button_finalize; + object_class->set_property = gimp_palette_select_button_set_property; + object_class->get_property = gimp_palette_select_button_get_property; + + select_button_class->select_destroy = gimp_palette_select_destroy; + + klass->palette_set = NULL; + + /** + * GimpPaletteSelectButton:title: + * + * The title to be used for the palette selection popup dialog. + * + * Since: 2.4 + */ + g_object_class_install_property (object_class, PROP_TITLE, + g_param_spec_string ("title", + "Title", + "The title to be used for the palette selection popup dialog", + _("Palette Selection"), + GIMP_PARAM_READWRITE | + G_PARAM_CONSTRUCT_ONLY)); + + /** + * GimpPaletteSelectButton:palette-name: + * + * The name of the currently selected palette. + * + * Since: 2.4 + */ + g_object_class_install_property (object_class, PROP_PALETTE_NAME, + g_param_spec_string ("palette-name", + "Palette name", + "The name of the currently selected palette", + NULL, + GIMP_PARAM_READWRITE)); + + /** + * GimpPaletteSelectButton::palette-set: + * @widget: the object which received the signal. + * @palette_name: the name of the currently selected palette. + * @dialog_closing: whether the dialog was closed or not. + * + * The ::palette-set signal is emitted when the user selects a palette. + * + * Since: 2.4 + */ + palette_button_signals[PALETTE_SET] = + g_signal_new ("palette-set", + G_TYPE_FROM_CLASS (klass), + G_SIGNAL_RUN_FIRST, + G_STRUCT_OFFSET (GimpPaletteSelectButtonClass, palette_set), + NULL, NULL, + _gimpui_marshal_VOID__STRING_BOOLEAN, + G_TYPE_NONE, 2, + G_TYPE_STRING, + G_TYPE_BOOLEAN); +} + +static void +gimp_palette_select_button_init (GimpPaletteSelectButton *button) +{ + GimpPaletteSelectButtonPrivate *priv; + + priv = GIMP_PALETTE_SELECT_BUTTON_GET_PRIVATE (button); + + priv->palette_name = NULL; + + priv->inside = gimp_palette_select_button_create_inside (button); + gtk_container_add (GTK_CONTAINER (button), priv->inside); +} + +/** + * gimp_palette_select_button_new: + * @title: Title of the dialog to use or %NULL to use the default title. + * @palette_name: Initial palette name. + * + * Creates a new #GtkWidget that completely controls the selection of + * a palette. This widget is suitable for placement in a table in a + * plug-in dialog. + * + * Returns: A #GtkWidget that you can use in your UI. + * + * Since: 2.4 + */ +GtkWidget * +gimp_palette_select_button_new (const gchar *title, + const gchar *palette_name) +{ + GtkWidget *button; + + if (title) + button = g_object_new (GIMP_TYPE_PALETTE_SELECT_BUTTON, + "title", title, + "palette-name", palette_name, + NULL); + else + button = g_object_new (GIMP_TYPE_PALETTE_SELECT_BUTTON, + "palette-name", palette_name, + NULL); + + return button; +} + +/** + * gimp_palette_select_button_get_palette: + * @button: A #GimpPaletteSelectButton + * + * Retrieves the name of currently selected palette. + * + * Returns: an internal copy of the palette name which must not be freed. + * + * Since: 2.4 + */ +const gchar * +gimp_palette_select_button_get_palette (GimpPaletteSelectButton *button) +{ + GimpPaletteSelectButtonPrivate *priv; + + g_return_val_if_fail (GIMP_IS_PALETTE_SELECT_BUTTON (button), NULL); + + priv = GIMP_PALETTE_SELECT_BUTTON_GET_PRIVATE (button); + return priv->palette_name; +} + +/** + * gimp_palette_select_button_set_palette: + * @button: A #GimpPaletteSelectButton + * @palette_name: Palette name to set; %NULL means no change. + * + * Sets the current palette for the palette select button. + * + * Since: 2.4 + */ +void +gimp_palette_select_button_set_palette (GimpPaletteSelectButton *button, + const gchar *palette_name) +{ + GimpSelectButton *select_button; + + g_return_if_fail (GIMP_IS_PALETTE_SELECT_BUTTON (button)); + + select_button = GIMP_SELECT_BUTTON (button); + + if (select_button->temp_callback) + { + gimp_palettes_set_popup (select_button->temp_callback, palette_name); + } + else + { + gchar *name; + gint num_colors; + + if (palette_name && *palette_name) + name = g_strdup (palette_name); + else + name = gimp_context_get_palette (); + + if (gimp_palette_get_info (name, &num_colors)) + gimp_palette_select_button_callback (name, FALSE, button); + + g_free (name); + } +} + + +/* private functions */ + +static void +gimp_palette_select_button_finalize (GObject *object) +{ + GimpPaletteSelectButtonPrivate *priv; + + priv = GIMP_PALETTE_SELECT_BUTTON_GET_PRIVATE (object); + + g_clear_pointer (&priv->palette_name, g_free); + g_clear_pointer (&priv->title, g_free); + + G_OBJECT_CLASS (gimp_palette_select_button_parent_class)->finalize (object); +} + +static void +gimp_palette_select_button_set_property (GObject *object, + guint property_id, + const GValue *value, + GParamSpec *pspec) +{ + GimpPaletteSelectButton *button; + GimpPaletteSelectButtonPrivate *priv; + + button = GIMP_PALETTE_SELECT_BUTTON (object); + priv = GIMP_PALETTE_SELECT_BUTTON_GET_PRIVATE (button); + + switch (property_id) + { + case PROP_TITLE: + priv->title = g_value_dup_string (value); + break; + case PROP_PALETTE_NAME: + gimp_palette_select_button_set_palette (button, + g_value_get_string (value)); + break; + default: + G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec); + break; + } +} + +static void +gimp_palette_select_button_get_property (GObject *object, + guint property_id, + GValue *value, + GParamSpec *pspec) +{ + GimpPaletteSelectButton *button; + GimpPaletteSelectButtonPrivate *priv; + + button = GIMP_PALETTE_SELECT_BUTTON (object); + priv = GIMP_PALETTE_SELECT_BUTTON_GET_PRIVATE (button); + + switch (property_id) + { + case PROP_TITLE: + g_value_set_string (value, priv->title); + break; + case PROP_PALETTE_NAME: + g_value_set_string (value, priv->palette_name); + break; + default: + G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec); + break; + } +} + +static void +gimp_palette_select_button_callback (const gchar *palette_name, + gboolean dialog_closing, + gpointer user_data) +{ + GimpPaletteSelectButton *button; + GimpPaletteSelectButtonPrivate *priv; + GimpSelectButton *select_button; + + button = GIMP_PALETTE_SELECT_BUTTON (user_data); + + priv = GIMP_PALETTE_SELECT_BUTTON_GET_PRIVATE (button); + select_button = GIMP_SELECT_BUTTON (button); + + g_free (priv->palette_name); + priv->palette_name = g_strdup (palette_name); + + gtk_label_set_text (GTK_LABEL (priv->label), palette_name); + + if (dialog_closing) + select_button->temp_callback = NULL; + + g_signal_emit (button, palette_button_signals[PALETTE_SET], 0, + palette_name, dialog_closing); + g_object_notify (G_OBJECT (button), "palette-name"); +} + +static void +gimp_palette_select_button_clicked (GimpPaletteSelectButton *button) +{ + GimpPaletteSelectButtonPrivate *priv; + GimpSelectButton *select_button; + + priv = GIMP_PALETTE_SELECT_BUTTON_GET_PRIVATE (button); + select_button = GIMP_SELECT_BUTTON (button); + + if (select_button->temp_callback) + { + /* calling gimp_palettes_set_popup() raises the dialog */ + gimp_palettes_set_popup (select_button->temp_callback, + priv->palette_name); + } + else + { + select_button->temp_callback = + gimp_palette_select_new (priv->title, priv->palette_name, + gimp_palette_select_button_callback, + button); + } +} + +static void +gimp_palette_select_drag_data_received (GimpPaletteSelectButton *button, + GdkDragContext *context, + gint x, + gint y, + GtkSelectionData *selection, + guint info, + guint time) +{ + gint length = gtk_selection_data_get_length (selection); + gchar *str; + + if (gtk_selection_data_get_format (selection) != 8 || length < 1) + { + g_warning ("%s: received invalid palette data", G_STRFUNC); + return; + } + + str = g_strndup ((const gchar *) gtk_selection_data_get_data (selection), + length); + + if (g_utf8_validate (str, -1, NULL)) + { + gint pid; + gpointer unused; + gint name_offset = 0; + + if (sscanf (str, "%i:%p:%n", &pid, &unused, &name_offset) >= 2 && + pid == gimp_getpid () && name_offset > 0) + { + gchar *name = str + name_offset; + + gimp_palette_select_button_set_palette (button, name); + } + } + + g_free (str); +} + +static GtkWidget * +gimp_palette_select_button_create_inside (GimpPaletteSelectButton *palette_button) +{ + GtkWidget *button; + GtkWidget *hbox; + GtkWidget *image; + GimpPaletteSelectButtonPrivate *priv; + + priv = GIMP_PALETTE_SELECT_BUTTON_GET_PRIVATE (palette_button); + + gtk_widget_push_composite_child (); + + button = gtk_button_new (); + + hbox = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 4); + gtk_container_add (GTK_CONTAINER (button), hbox); + + image = gtk_image_new_from_icon_name (GIMP_ICON_PALETTE, + GTK_ICON_SIZE_BUTTON); + gtk_box_pack_start (GTK_BOX (hbox), image, FALSE, FALSE, 0); + + priv->label = gtk_label_new (priv->palette_name); + gtk_box_pack_start (GTK_BOX (hbox), priv->label, TRUE, TRUE, 4); + + gtk_widget_show_all (button); + + g_signal_connect_swapped (button, "clicked", + G_CALLBACK (gimp_palette_select_button_clicked), + palette_button); + + gtk_drag_dest_set (GTK_WIDGET (button), + GTK_DEST_DEFAULT_HIGHLIGHT | + GTK_DEST_DEFAULT_MOTION | + GTK_DEST_DEFAULT_DROP, + &target, 1, + GDK_ACTION_COPY); + + g_signal_connect_swapped (button, "drag-data-received", + G_CALLBACK (gimp_palette_select_drag_data_received), + palette_button); + + gtk_widget_pop_composite_child (); + + return button; +} |