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c1c876a963
2005-07-25 Michael Natterer <mitch@gimp.org> Some DND fixes / cleanup: * app/widgets/widgets-enums.h: renamed GIMP_DND_TYPE_TOOL to GIMP_DND_TYPE_TOOL_INFO. * app/widgets/gimpselectiondata.[ch]: s/tool/tool_info/g. Moved private functions to the end of the file. Include GIMP's PID in all GtkSelectionData strings which are used to pass around stuff by reference. For things which are referenced by name, also encode the object's address in the GtkSelectionData so having a brush called "Standard" or a named buffer called "Global Buffer" will work together with DND. * app/widgets/gimpdnd.[ch]: s/tool/tool_info/g. Renamed gimp_dnd_get_data_data() to gimp_dnd_get_object_data() since it's not limited to GimpData objects. Follow above selection data API changes. Cleanup. * libgimp/gimpbrushmenu.c * libgimp/gimpdrawablecombobox.c * libgimp/gimpfontselectbutton.c * libgimp/gimpgradientmenu.c * libgimp/gimpimagecombobox.c * libgimp/gimppalettemenu.c * libgimp/gimppatternmenu.c: follow GtkSelectionData format change and check the dropped things' PID against the return value of gimp_getpid().
294 lines
9.1 KiB
C
294 lines
9.1 KiB
C
/* LIBGIMP - The GIMP Library
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* Copyright (C) 1995-1997 Peter Mattis and Spencer Kimball
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*
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* gimppalettemenu.c
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* Copyright (C) 2004 Michael Natterer <mitch@gimp.org>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#include "config.h"
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#include "gimp.h"
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#include "gimpui.h"
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#include "libgimp-intl.h"
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#define PALETTE_SELECT_DATA_KEY "gimp-palette-selct-data"
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typedef struct _PaletteSelect PaletteSelect;
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struct _PaletteSelect
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{
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gchar *title;
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GimpRunPaletteCallback callback;
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gpointer data;
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GtkWidget *button;
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GtkWidget *label;
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gchar *palette_name; /* Local copy */
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const gchar *temp_palette_callback;
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};
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/* local function prototypes */
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static void gimp_palette_select_widget_callback (const gchar *name,
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gboolean closing,
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gpointer data);
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static void gimp_palette_select_widget_clicked (GtkWidget *widget,
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PaletteSelect *palette_sel);
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static void gimp_palette_select_widget_destroy (GtkWidget *widget,
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PaletteSelect *palette_sel);
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static void gimp_palette_select_drag_data_received (GtkWidget *widget,
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GdkDragContext *context,
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gint x,
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gint y,
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GtkSelectionData *selection,
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guint info,
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guint time);
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static const GtkTargetEntry target = { "application/x-gimp-palette-name", 0 };
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/**
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* gimp_palette_select_widget_new:
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* @title: Title of the dialog to use or %NULL means to use the default
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* title.
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* @palette_name: Initial palette name.
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* @callback: A function to call when the selected palette changes.
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* @data: A pointer to arbitary data to be used in the call to @callback.
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*
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* Creates a new #GtkWidget that completely controls the selection of
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* a palette. This widget is suitable for placement in a table in a
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* plug-in dialog.
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*
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* Returns: A #GtkWidget that you can use in your UI.
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*
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* Since: GIMP 2.2
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*/
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GtkWidget *
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gimp_palette_select_widget_new (const gchar *title,
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const gchar *palette_name,
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GimpRunPaletteCallback callback,
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gpointer data)
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{
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PaletteSelect *palette_sel;
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GtkWidget *hbox;
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GtkWidget *image;
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g_return_val_if_fail (callback != NULL, NULL);
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if (! title)
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title = _("Palette Selection");
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palette_sel = g_new0 (PaletteSelect, 1);
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palette_sel->title = g_strdup (title);
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palette_sel->callback = callback;
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palette_sel->data = data;
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palette_sel->palette_name = g_strdup (palette_name);
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palette_sel->button = gtk_button_new ();
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g_signal_connect (palette_sel->button, "clicked",
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G_CALLBACK (gimp_palette_select_widget_clicked),
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palette_sel);
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g_signal_connect (palette_sel->button, "destroy",
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G_CALLBACK (gimp_palette_select_widget_destroy),
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palette_sel);
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gtk_drag_dest_set (GTK_WIDGET (palette_sel->button),
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GTK_DEST_DEFAULT_HIGHLIGHT |
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GTK_DEST_DEFAULT_MOTION |
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GTK_DEST_DEFAULT_DROP,
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&target, 1,
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GDK_ACTION_COPY);
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g_signal_connect (palette_sel->button, "drag-data-received",
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G_CALLBACK (gimp_palette_select_drag_data_received),
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NULL);
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hbox = gtk_hbox_new (FALSE, 4);
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gtk_container_add (GTK_CONTAINER (palette_sel->button), hbox);
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gtk_widget_show (hbox);
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image = gtk_image_new_from_stock (GIMP_STOCK_PALETTE, GTK_ICON_SIZE_BUTTON);
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gtk_box_pack_start (GTK_BOX (hbox), image, FALSE, FALSE, 0);
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gtk_widget_show (image);
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palette_sel->label = gtk_label_new (palette_name);
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gtk_box_pack_start (GTK_BOX (hbox), palette_sel->label, TRUE, TRUE, 4);
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gtk_widget_show (palette_sel->label);
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g_object_set_data (G_OBJECT (palette_sel->button),
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PALETTE_SELECT_DATA_KEY, palette_sel);
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return palette_sel->button;
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}
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/**
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* gimp_palette_select_widget_close:
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* @widget: A palette select widget.
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*
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* Closes the popup window associated with @widget.
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*
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* Since: GIMP 2.2
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*/
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void
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gimp_palette_select_widget_close (GtkWidget *widget)
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{
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PaletteSelect *palette_sel;
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palette_sel = g_object_get_data (G_OBJECT (widget), PALETTE_SELECT_DATA_KEY);
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g_return_if_fail (palette_sel != NULL);
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if (palette_sel->temp_palette_callback)
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{
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gimp_palette_select_destroy (palette_sel->temp_palette_callback);
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palette_sel->temp_palette_callback = NULL;
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}
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}
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/**
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* gimp_palette_select_widget_set;
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* @widget: A palette select widget.
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* @palette_name: Palette name to set; %NULL means no change.
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*
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* Sets the current palette for the palette select widget. Calls the
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* callback function if one was supplied in the call to
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* gimp_palette_select_widget_new().
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*
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* Since: GIMP 2.2
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*/
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void
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gimp_palette_select_widget_set (GtkWidget *widget,
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const gchar *palette_name)
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{
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PaletteSelect *palette_sel;
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palette_sel = g_object_get_data (G_OBJECT (widget), PALETTE_SELECT_DATA_KEY);
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g_return_if_fail (palette_sel != NULL);
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if (palette_sel->temp_palette_callback)
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gimp_palettes_set_popup (palette_sel->temp_palette_callback, palette_name);
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else
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gimp_palette_select_widget_callback (palette_name, FALSE, palette_sel);
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}
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/* private functions */
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static void
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gimp_palette_select_widget_callback (const gchar *name,
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gboolean closing,
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gpointer data)
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{
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PaletteSelect *palette_sel = (PaletteSelect *) data;
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g_free (palette_sel->palette_name);
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palette_sel->palette_name = g_strdup (name);
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gtk_label_set_text (GTK_LABEL (palette_sel->label), name);
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if (palette_sel->callback)
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palette_sel->callback (name, closing, palette_sel->data);
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if (closing)
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palette_sel->temp_palette_callback = NULL;
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}
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static void
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gimp_palette_select_widget_clicked (GtkWidget *widget,
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PaletteSelect *palette_sel)
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{
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if (palette_sel->temp_palette_callback)
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{
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/* calling gimp_palettes_set_popup() raises the dialog */
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gimp_palettes_set_popup (palette_sel->temp_palette_callback,
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palette_sel->palette_name);
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}
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else
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{
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palette_sel->temp_palette_callback =
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gimp_palette_select_new (palette_sel->title,
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palette_sel->palette_name,
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gimp_palette_select_widget_callback,
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palette_sel);
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}
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}
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static void
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gimp_palette_select_widget_destroy (GtkWidget *widget,
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PaletteSelect *palette_sel)
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{
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if (palette_sel->temp_palette_callback)
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{
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gimp_palette_select_destroy (palette_sel->temp_palette_callback);
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palette_sel->temp_palette_callback = NULL;
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}
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g_free (palette_sel->title);
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g_free (palette_sel->palette_name);
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g_free (palette_sel);
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}
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static void
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gimp_palette_select_drag_data_received (GtkWidget *widget,
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GdkDragContext *context,
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gint x,
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gint y,
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GtkSelectionData *selection,
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guint info,
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guint time)
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{
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gchar *str;
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if ((selection->format != 8) || (selection->length < 1))
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{
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g_warning ("Received invalid palette data!");
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return;
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}
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str = g_strndup (selection->data, selection->length);
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if (g_utf8_validate (str, -1, NULL))
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{
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gint pid;
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gpointer unused;
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gint name_offset = 0;
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if (sscanf (str, "%i:%p:%n", &pid, &unused, &name_offset) >= 2 &&
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pid == gimp_getpid () && name_offset > 0)
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{
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gchar *name = str + name_offset;
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gimp_palette_select_widget_set (widget, name);
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}
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}
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g_free (str);
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}
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