1 files changed, 455 insertions, 0 deletions
diff --git a/capplets/about-me/e-image-chooser.c b/capplets/about-me/e-image-chooser.c
new file mode 100644
index 00000000..31a189f1
--- /dev/null
+++ b/capplets/about-me/e-image-chooser.c
@@ -0,0 +1,455 @@
+/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
+/* e-image-chooser.c
+ * Copyright (C) 2004 Novell, Inc.
+ * Author: Chris Toshok <[email protected]>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of version 2 of the GNU General Public
+ * License as published by the Free Software Foundation.
+ *
+ * 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 library; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ */
+
+#include <config.h>
+
+#include <string.h>
+
+#include <glib-object.h>
+#include <glib/gi18n.h>
+#include <gio/gio.h>
+#include <gtk/gtk.h>
+
+#include "e-image-chooser.h"
+
+struct _EImageChooserPrivate {
+
+ GtkWidget *image;
+ GtkWidget *browse_button;
+
+ char *image_buf;
+ int image_buf_size;
+ int image_width;
+ int image_height;
+
+ gboolean editable;
+};
+
+enum {
+ CHANGED,
+ LAST_SIGNAL
+};
+
+
+static gint image_chooser_signals [LAST_SIGNAL] = { 0 };
+
+static void e_image_chooser_init (EImageChooser *chooser);
+static void e_image_chooser_class_init (EImageChooserClass *klass);
+static void e_image_chooser_dispose (GObject *object);
+
+static gboolean image_drag_motion_cb (GtkWidget *widget,
+ GdkDragContext *context,
+ gint x, gint y, guint time, EImageChooser *chooser);
+static gboolean image_drag_drop_cb (GtkWidget *widget,
+ GdkDragContext *context,
+ gint x, gint y, guint time, EImageChooser *chooser);
+static void image_drag_data_received_cb (GtkWidget *widget,
+ GdkDragContext *context,
+ gint x, gint y,
+ GtkSelectionData *selection_data,
+ guint info, guint time, EImageChooser *chooser);
+
+static GtkObjectClass *parent_class = NULL;
+#define PARENT_TYPE GTK_TYPE_VBOX
+
+enum DndTargetType {
+ DND_TARGET_TYPE_URI_LIST
+};
+#define URI_LIST_TYPE "text/uri-list"
+
+static GtkTargetEntry image_drag_types[] = {
+ { URI_LIST_TYPE, 0, DND_TARGET_TYPE_URI_LIST },
+};
+static const int num_image_drag_types = sizeof (image_drag_types) / sizeof (image_drag_types[0]);
+
+GtkWidget *
+e_image_chooser_new (void)
+{
+ return g_object_new (E_TYPE_IMAGE_CHOOSER, NULL);
+}
+
+GType
+e_image_chooser_get_type (void)
+{
+ static GType eic_type = 0;
+
+ if (!eic_type) {
+ static const GTypeInfo eic_info = {
+ sizeof (EImageChooserClass),
+ NULL, /* base_init */
+ NULL, /* base_finalize */
+ (GClassInitFunc) e_image_chooser_class_init,
+ NULL, /* class_finalize */
+ NULL, /* class_data */
+ sizeof (EImageChooser),
+ 0, /* n_preallocs */
+ (GInstanceInitFunc) e_image_chooser_init,
+ };
+
+ eic_type = g_type_register_static (PARENT_TYPE, "EImageChooser", &eic_info, 0);
+ }
+
+ return eic_type;
+}
+
+
+static void
+e_image_chooser_class_init (EImageChooserClass *klass)
+{
+ GObjectClass *object_class = G_OBJECT_CLASS (klass);
+
+ parent_class = g_type_class_ref (PARENT_TYPE);
+
+ image_chooser_signals [CHANGED] =
+ g_signal_new ("changed",
+ G_OBJECT_CLASS_TYPE (object_class),
+ G_SIGNAL_RUN_FIRST,
+ G_STRUCT_OFFSET (EImageChooserClass, changed),
+ NULL, NULL,
+ g_cclosure_marshal_VOID__VOID,
+ GTK_TYPE_NONE, 0);
+
+ object_class->dispose = e_image_chooser_dispose;
+}
+
+static void
+e_image_chooser_init (EImageChooser *chooser)
+{
+ EImageChooserPrivate *priv;
+
+ priv = chooser->priv = g_new0 (EImageChooserPrivate, 1);
+
+ priv->image = gtk_image_new ();
+
+ gtk_box_set_homogeneous (GTK_BOX (chooser), FALSE);
+ gtk_box_pack_start (GTK_BOX (chooser), priv->image, TRUE, TRUE, 0);
+
+ gtk_drag_dest_set (priv->image, 0, image_drag_types, num_image_drag_types, GDK_ACTION_COPY);
+ g_signal_connect (priv->image,
+ "drag_motion", G_CALLBACK (image_drag_motion_cb), chooser);
+ g_signal_connect (priv->image,
+ "drag_drop", G_CALLBACK (image_drag_drop_cb), chooser);
+ g_signal_connect (priv->image,
+ "drag_data_received", G_CALLBACK (image_drag_data_received_cb), chooser);
+
+ gtk_widget_show_all (priv->image);
+
+ /* we default to being editable */
+ priv->editable = TRUE;
+}
+
+static void
+e_image_chooser_dispose (GObject *object)
+{
+ EImageChooser *eic = E_IMAGE_CHOOSER (object);
+
+ if (eic->priv) {
+ EImageChooserPrivate *priv = eic->priv;
+
+ if (priv->image_buf) {
+ g_free (priv->image_buf);
+ priv->image_buf = NULL;
+ }
+
+ g_free (eic->priv);
+ eic->priv = NULL;
+ }
+
+ if (G_OBJECT_CLASS (parent_class)->dispose)
+ (* G_OBJECT_CLASS (parent_class)->dispose) (object);
+}
+
+
+static gboolean
+set_image_from_data (EImageChooser *chooser,
+ char *data, int length)
+{
+ gboolean rv = FALSE;
+ GdkPixbufLoader *loader = gdk_pixbuf_loader_new ();
+ GdkPixbuf *pixbuf;
+
+ gdk_pixbuf_loader_write (loader, data, length, NULL);
+ gdk_pixbuf_loader_close (loader, NULL);
+
+ pixbuf = gdk_pixbuf_loader_get_pixbuf (loader);
+ if (pixbuf)
+ g_object_ref (pixbuf);
+ g_object_unref (loader);
+
+ if (pixbuf) {
+ GdkPixbuf *scaled;
+ GtkRequisition chooser_size;
+
+ float scale;
+ int new_height, new_width;
+
+ gtk_widget_size_request (gtk_widget_get_parent (GTK_WIDGET (chooser)),
+ &chooser_size);
+ chooser_size.width -= 5;
+ chooser_size.height -= 5;
+
+ new_height = gdk_pixbuf_get_height (pixbuf);
+ new_width = gdk_pixbuf_get_width (pixbuf);
+
+ if (chooser->priv->image_height == 0
+ && chooser->priv->image_width == 0) {
+ scale = 1.0;
+ }
+ else if (chooser->priv->image_height < new_height
+ || chooser->priv->image_width < new_width) {
+ /* we need to scale down */
+ if (new_height > new_width)
+ scale = (float)chooser_size.height / new_height;
+ else
+ scale = (float)chooser_size.width / new_width;
+ }
+ else {
+ /* we need to scale up */
+ if (new_height > new_width)
+ scale = (float)new_height / chooser_size.height;
+ else
+ scale = (float)new_width / chooser_size.width;
+ }
+
+ if (scale == 1.0) {
+ gtk_image_set_from_pixbuf (GTK_IMAGE (chooser->priv->image), pixbuf);
+
+ chooser->priv->image_width = new_width;
+ chooser->priv->image_height = new_height;
+ }
+ else {
+ new_width *= scale;
+ new_height *= scale;
+ new_width = MIN (new_width, chooser_size.width);
+ new_height = MIN (new_height, chooser_size.height);
+
+ scaled = gdk_pixbuf_scale_simple (pixbuf,
+ new_width, new_height,
+ GDK_INTERP_BILINEAR);
+
+ gtk_image_set_from_pixbuf (GTK_IMAGE (chooser->priv->image), scaled);
+ g_object_unref (scaled);
+ }
+
+ g_object_unref (pixbuf);
+
+ g_free (chooser->priv->image_buf);
+ chooser->priv->image_buf = data;
+ chooser->priv->image_buf_size = length;
+
+ g_signal_emit (chooser,
+ image_chooser_signals [CHANGED], 0);
+
+ rv = TRUE;
+ }
+
+ return rv;
+}
+
+static gboolean
+image_drag_motion_cb (GtkWidget *widget,
+ GdkDragContext *context,
+ gint x, gint y, guint time, EImageChooser *chooser)
+{
+ GList *p;
+
+ if (!chooser->priv->editable)
+ return FALSE;
+
+ for (p = context->targets; p != NULL; p = p->next) {
+ char *possible_type;
+
+ possible_type = gdk_atom_name (GDK_POINTER_TO_ATOM (p->data));
+ if (!strcmp (possible_type, URI_LIST_TYPE)) {
+ g_free (possible_type);
+ gdk_drag_status (context, GDK_ACTION_COPY, time);
+ return TRUE;
+ }
+
+ g_free (possible_type);
+ }
+
+ return FALSE;
+}
+
+static gboolean
+image_drag_drop_cb (GtkWidget *widget,
+ GdkDragContext *context,
+ gint x, gint y, guint time, EImageChooser *chooser)
+{
+ GList *p;
+
+ if (!chooser->priv->editable)
+ return FALSE;
+
+ if (context->targets == NULL) {
+ return FALSE;
+ }
+
+ for (p = context->targets; p != NULL; p = p->next) {
+ char *possible_type;
+
+ possible_type = gdk_atom_name (GDK_POINTER_TO_ATOM (p->data));
+ if (!strcmp (possible_type, URI_LIST_TYPE)) {
+ g_free (possible_type);
+ gtk_drag_get_data (widget, context,
+ GDK_POINTER_TO_ATOM (p->data),
+ time);
+ return TRUE;
+ }
+
+ g_free (possible_type);
+ }
+
+ return FALSE;
+}
+
+static void
+image_drag_data_received_cb (GtkWidget *widget,
+ GdkDragContext *context,
+ gint x, gint y,
+ GtkSelectionData *selection_data,
+ guint info, guint time, EImageChooser *chooser)
+{
+ char *target_type;
+ gboolean handled = FALSE;
+
+ target_type = gdk_atom_name (gtk_selection_data_get_target (selection_data));
+
+ if (!strcmp (target_type, URI_LIST_TYPE)) {
+ const char *data = gtk_selection_data_get_data (selection_data);
+ char *uri;
+ GFile *file;
+ GInputStream *istream;
+ char *nl = strstr (data, "\r\n");
+
+ if (nl)
+ uri = g_strndup (data, nl - (char *) data);
+ else
+ uri = g_strdup (data);
+
+ file = g_file_new_for_uri (uri);
+ istream = G_INPUT_STREAM (g_file_read (file, NULL, NULL));
+
+ if (istream != NULL) {
+ GFileInfo *info;
+
+ info = g_file_query_info (file,
+ G_FILE_ATTRIBUTE_STANDARD_SIZE,
+ G_FILE_QUERY_INFO_NONE,
+ NULL, NULL);
+
+ if (info != NULL) {
+ gsize size;
+ gboolean success;
+ gchar *buf;
+
+ size = g_file_info_get_size (info);
+ g_object_unref (info);
+
+ buf = g_malloc (size);
+
+ success = g_input_stream_read_all (istream,
+ buf,
+ size,
+ &size,
+ NULL,
+ NULL);
+ g_input_stream_close (istream, NULL, NULL);
+
+ if (success &&
+ set_image_from_data (chooser, buf, size))
+ handled = TRUE;
+ else
+ g_free (buf);
+ }
+
+ g_object_unref (istream);
+ }
+
+ g_object_unref (file);
+ g_free (uri);
+ }
+
+ gtk_drag_finish (context, handled, FALSE, time);
+}
+
+gboolean
+e_image_chooser_set_from_file (EImageChooser *chooser, const char *filename)
+{
+ gchar *data;
+ gsize data_length;
+
+ g_return_val_if_fail (E_IS_IMAGE_CHOOSER (chooser), FALSE);
+ g_return_val_if_fail (filename, FALSE);
+
+ if (!g_file_get_contents (filename, &data, &data_length, NULL)) {
+ return FALSE;
+ }
+
+ if (!set_image_from_data (chooser, data, data_length))
+ g_free (data);
+
+ return TRUE;
+}
+
+void
+e_image_chooser_set_editable (EImageChooser *chooser, gboolean editable)
+{
+ g_return_if_fail (E_IS_IMAGE_CHOOSER (chooser));
+
+ chooser->priv->editable = editable;
+
+ gtk_widget_set_sensitive (chooser->priv->browse_button, editable);
+}
+
+gboolean
+e_image_chooser_get_image_data (EImageChooser *chooser, char **data, gsize *data_length)
+{
+ g_return_val_if_fail (E_IS_IMAGE_CHOOSER (chooser), FALSE);
+ g_return_val_if_fail (data != NULL, FALSE);
+ g_return_val_if_fail (data_length != NULL, FALSE);
+
+ *data_length = chooser->priv->image_buf_size;
+ *data = g_malloc (*data_length);
+ memcpy (*data, chooser->priv->image_buf, *data_length);
+
+ return TRUE;
+}
+
+gboolean
+e_image_chooser_set_image_data (EImageChooser *chooser, char *data, gsize data_length)
+{
+ char *buf;
+
+ g_return_val_if_fail (E_IS_IMAGE_CHOOSER (chooser), FALSE);
+ g_return_val_if_fail (data != NULL, FALSE);
+
+ /* yuck, a copy... */
+ buf = g_malloc (data_length);
+ memcpy (buf, data, data_length);
+
+ if (!set_image_from_data (chooser, buf, data_length)) {
+ g_free (buf);
+ return FALSE;
+ }
+
+ return TRUE;
+}