]> git.0d.be Git - empathy.git/blobdiff - libempathy-gtk/empathy-avatar-chooser.c
Add en_GB in gitignore
[empathy.git] / libempathy-gtk / empathy-avatar-chooser.c
index 0675f426a129abfa27b94d5d805a9fb5979ba766..5d1c90fcba2b3c10886b48582d39a0ab630fba5e 100644 (file)
 
 #include <string.h>
 
-#include <glib/gi18n.h>
+#include <glib/gi18n-lib.h>
 #include <gtk/gtk.h>
 #include <gio/gio.h>
 
 #include <libempathy/empathy-utils.h>
+#include <libempathy/empathy-contact-factory.h>
+
 #include "empathy-avatar-chooser.h"
 #include "empathy-conf.h"
 #include "empathy-ui-utils.h"
@@ -46,6 +48,7 @@ typedef struct {
        EmpathyContactFactory   *contact_factory;
        McAccount               *account;
        EmpathyTpContactFactory *tp_contact_factory;
+       GtkFileChooser          *chooser_dialog;
 
        gulong ready_handler_id;
 
@@ -56,8 +59,8 @@ static void       avatar_chooser_finalize              (GObject              *ob
 static void       avatar_chooser_set_account           (EmpathyAvatarChooser *self,
                                                        McAccount            *account);
 static void       avatar_chooser_set_image             (EmpathyAvatarChooser *chooser,
-                                                       gchar                *data,
-                                                       gsize                 size,
+                                                       EmpathyAvatar        *avatar,
+                                                       GdkPixbuf            *pixbuf,
                                                        gboolean              set_locally);
 static gboolean   avatar_chooser_drag_motion_cb        (GtkWidget            *widget,
                                                        GdkDragContext       *context,
@@ -211,7 +214,7 @@ empathy_avatar_chooser_init (EmpathyAvatarChooser *chooser)
                          G_CALLBACK (avatar_chooser_clicked_cb),
                          chooser);
 
-       priv->contact_factory = empathy_contact_factory_new ();
+       priv->contact_factory = empathy_contact_factory_dup_singleton ();
 
        empathy_avatar_chooser_set (chooser, NULL);
 }
@@ -224,7 +227,8 @@ avatar_chooser_finalize (GObject *object)
        priv = GET_PRIV (object);
 
        avatar_chooser_set_account (EMPATHY_AVATAR_CHOOSER (object), NULL);
-       g_assert (priv->account == NULL && priv->tp_contact_factory == NULL);
+       g_assert (priv->account == NULL);
+       g_assert (priv->tp_contact_factory == NULL);
 
        g_object_unref (priv->contact_factory);
 
@@ -284,8 +288,38 @@ avatar_chooser_set_account (EmpathyAvatarChooser *self,
        }
 }
 
+static void
+avatar_chooser_error_show (EmpathyAvatarChooser *chooser,
+                          const gchar          *primary_text,
+                          const gchar          *secondary_text)
+{
+       GtkWidget *parent;
+       GtkWidget *dialog;
+
+       parent = gtk_widget_get_toplevel (GTK_WIDGET (chooser));
+       if (!GTK_IS_WINDOW (parent)) {
+               parent = NULL;
+       }
+
+       dialog = gtk_message_dialog_new (parent ? GTK_WINDOW (parent) : NULL,
+                                        GTK_DIALOG_MODAL,
+                                        GTK_MESSAGE_WARNING,
+                                        GTK_BUTTONS_CLOSE,
+                                        "%s", primary_text);
+
+       if (secondary_text != NULL) {
+               gtk_message_dialog_format_secondary_text (GTK_MESSAGE_DIALOG (dialog),
+                                                         "%s", secondary_text);
+       }
+
+       g_signal_connect (dialog, "response",
+                         G_CALLBACK (gtk_widget_destroy), NULL);
+       gtk_widget_show (dialog);
+
+}
+
 static gboolean
-str_in_strv (gchar  *str,
+str_in_strv (const gchar  *str,
             gchar **strv)
 {
        if (strv == NULL) {
@@ -305,97 +339,71 @@ str_in_strv (gchar  *str,
  * satisfactory_mime_type.
  */
 static gboolean
-can_satisfy_mime_type_requirements (gchar **accepted_mime_types,
-                                   gchar **satisfactory_format_name,
-                                   gchar **satisfactory_mime_type)
+avatar_chooser_need_mime_type_conversion (const gchar *current_mime_type,
+                                         gchar      **accepted_mime_types,
+                                         gchar      **satisfactory_format_name,
+                                         gchar      **satisfactory_mime_type)
 {
-       GSList *formats;
-       GSList *i;
-       gchar **j;
-       gboolean done = FALSE;
+       gchar   *good_mime_types[] = {"image/jpeg", "image/png", NULL};
+       guint    i;
+       GSList  *formats, *l;
+       gboolean found = FALSE;
+
+       *satisfactory_format_name = NULL;
+       *satisfactory_mime_type = NULL;
 
+       /* If there is no accepted format there is nothing we can do */
        if (accepted_mime_types == NULL || *accepted_mime_types == NULL) {
+               return TRUE;
+       }
+
+       /* If the current mime type is good and accepted, don't change it!
+        * jpeg is compress better pictures, but png is better for logos and
+        * could have an alpha layer. */
+       if (str_in_strv (current_mime_type, good_mime_types) &&
+           str_in_strv (current_mime_type, accepted_mime_types)) {
+               *satisfactory_mime_type = g_strdup (current_mime_type);
+               *satisfactory_format_name = g_strdup (current_mime_type +
+                                                     strlen ("image/"));
                return FALSE;
        }
 
-       g_assert (satisfactory_format_name != NULL);
-       g_assert (satisfactory_mime_type != NULL);
+       /* The current mime type is either not accepted or not good to use.
+        * Check if one of the good format is supported... */
+       for (i = 0; good_mime_types[i] != NULL;  i++) {
+               if (str_in_strv (good_mime_types[i], accepted_mime_types)) {
+                       *satisfactory_mime_type = g_strdup (good_mime_types[i]);
+                       *satisfactory_format_name = g_strdup (good_mime_types[i] +
+                                                             strlen ("image/"));
+                       return TRUE;
+               }
+       }
 
+       /* Pick the first supported format we can write */
        formats = gdk_pixbuf_get_formats ();
-
-       for (i = formats; !done && i != NULL; i = i->next) {
-               GdkPixbufFormat *format = i->data;
+       for (l = formats; !found && l != NULL; l = l->next) {
+               GdkPixbufFormat *format = l->data;
                gchar **format_mime_types;
+               gchar **iter;
 
                if (!gdk_pixbuf_format_is_writable (format)) {
                        continue;
                }
 
                format_mime_types = gdk_pixbuf_format_get_mime_types (format);
-               for (j = accepted_mime_types; *j != NULL; j++) {
-                       if (str_in_strv (*j, format_mime_types)) {
+               for (iter = format_mime_types; *iter != NULL; iter++) {
+                       if (str_in_strv (*iter, accepted_mime_types)) {
                                *satisfactory_format_name = gdk_pixbuf_format_get_name (format);
-                               *satisfactory_mime_type = g_strdup (*j);
-                               done = TRUE;
+                               *satisfactory_mime_type = g_strdup (*iter);
+                               found = TRUE;
                                break;
                        }
                }
                g_strfreev (format_mime_types);
        }
-
        g_slist_free (formats);
 
-       return done;
-}
-
-static EmpathyAvatar *
-avatar_chooser_convert (EmpathyAvatarChooser *chooser,
-                       GdkPixbuf            *pixbuf_scaled,
-                       gchar               **mime_types,
-                       gsize                 max_size)
-{
-       gchar         *format_name = NULL, *new_mime_type = NULL;
-       gchar         *converted_image_data = NULL;
-       gsize          converted_image_size = 0;
-       EmpathyAvatar *converted_avatar = NULL;
-       gboolean       saved;
-       GError        *error = NULL;
-
-       if (!can_satisfy_mime_type_requirements (mime_types, &format_name,
-                                                &new_mime_type)) {
-               DEBUG ("Mon dieu! Can't convert to any acceptable format!");
-               return NULL;
-       }
-
-       saved = gdk_pixbuf_save_to_buffer (pixbuf_scaled, &converted_image_data,
-               &converted_image_size, format_name, &error, NULL);
-       g_free (format_name);
-
-       if (!saved) {
-               DEBUG ("Couldn't convert image: %s", error->message);
-               g_error_free (error);
-
-               g_free (new_mime_type);
-               return NULL;
-       }
-
-       /* Takes ownership of new_mime_type */
-       converted_avatar = empathy_avatar_new (converted_image_data,
-               converted_image_size, new_mime_type, NULL);
-
-       if (max_size > 0 && converted_avatar->len > max_size) {
-               /* FIXME: We could try converting to a different format; in
-                *        particular, try converting to jpeg with increasingly
-                *        high compression (if jpeg is supported). Not sure how
-                *        much we care.
-                */
-               DEBUG ("Converted the image, but the new filesize is too big");
-
-               empathy_avatar_unref (converted_avatar);
-               converted_avatar = NULL;
-       }
-
-       return converted_avatar;
+       return TRUE;
 }
 
 static EmpathyAvatar *
@@ -405,10 +413,16 @@ avatar_chooser_maybe_convert_and_scale (EmpathyAvatarChooser *chooser,
 {
        EmpathyAvatarChooserPriv *priv = GET_PRIV (chooser);
        EmpathyTpContactFactory  *tp_cf = priv->tp_contact_factory;
-       gint                      max_width = 0, max_height = 0, max_size = 0;
+       guint                     max_width = 0, max_height = 0, max_size = 0;
        gchar                   **mime_types = NULL;
        gboolean                  needs_conversion = FALSE;
-       GdkPixbuf                *pixbuf_scaled = NULL;
+       gint                      width, height;
+       gchar                    *new_format_name = NULL;
+       gchar                    *new_mime_type = NULL;
+       gdouble                   min_factor, max_factor;
+       gdouble                   factor;
+       gchar                    *converted_image_data = NULL;
+       gsize                     converted_image_size = 0;
 
        /* This should only be called if the user is setting a new avatar,
         * which should only be allowed once the avatar requirements have been
@@ -425,34 +439,136 @@ avatar_chooser_maybe_convert_and_scale (EmpathyAvatarChooser *chooser,
                "avatar-max-size", &max_size,
                NULL);
 
-       /* If the avatar's not already the right type, it needs converting. */
-       if (!str_in_strv (avatar->format, mime_types)) {
+       /* Smaller is the factor, smaller will be the image.
+        * 0 is an empty image, 1 is the full size. */
+       min_factor = 0;
+       max_factor = 1;
+       factor = 1;
+
+       /* Check if we need to convert to another image format */
+       if (avatar_chooser_need_mime_type_conversion (avatar->format,
+                                                     mime_types,
+                                                     &new_format_name,
+                                                     &new_mime_type)) {
+               DEBUG ("Format conversion needed, we'll use mime type '%s' "
+                      "and format name '%s'. Current mime type is '%s'",
+                      new_mime_type, new_format_name, avatar->format);
                needs_conversion = TRUE;
        }
+       g_strfreev (mime_types);
+
+       /* If there is no format we can use, report error to the user. */
+       if (new_mime_type == NULL || new_format_name == NULL) {
+               avatar_chooser_error_show (chooser, _("Couldn't convert image"),
+                               _("None of the accepted image formats is "
+                                 "supported on your system"));
+               return NULL;
+       }
+
+       /* If width or height are too big, it needs converting. */
+       width = gdk_pixbuf_get_width (pixbuf);
+       height = gdk_pixbuf_get_height (pixbuf);
+       if ((max_width > 0 && width > max_width) ||
+           (max_height > 0 && height > max_height)) {
+               gdouble h_factor, v_factor;
+
+               h_factor = (gdouble) max_width / width;
+               v_factor = (gdouble) max_height / height;
+               factor = max_factor = MIN (h_factor, v_factor);
+
+               DEBUG ("Image dimensions (%dx%d) are too big. Max is %dx%d.",
+                      width, height, max_width, max_height);
 
-       /* If scaling down the pixbuf to fit the dimensions yields a new
-        * pixbuf, then it needed scaling. if it's the same pixbuf, it did not.
-        */
-       pixbuf_scaled = empathy_pixbuf_scale_down_if_necessary (pixbuf,
-               MIN(max_width, max_height));
-       if (pixbuf_scaled != pixbuf) {
                needs_conversion = TRUE;
        }
 
-       if (max_size > 0 && avatar->len > max_size) {
+       /* If the data len is too big and no other conversion is needed,
+        * try with a lower factor. */
+       if (max_size > 0 && avatar->len > max_size && !needs_conversion) {
+               DEBUG ("Image data (%"G_GSIZE_FORMAT" bytes) is too big "
+                      "(max is %u bytes), conversion needed.",
+                      avatar->len, max_size);
+
+               factor = 0.5;
                needs_conversion = TRUE;
        }
 
-       if (needs_conversion) {
-               avatar = avatar_chooser_convert (chooser, pixbuf_scaled,
-                       mime_types, max_size);
-       } else {
-               /* Just return another reference to the avatar passed in. */
-               avatar = empathy_avatar_ref (avatar);
+       /* If no conversion is needed, return the avatar */
+       if (!needs_conversion) {
+               g_free (new_format_name);
+               g_free (new_mime_type);
+               return empathy_avatar_ref (avatar);
        }
 
-       g_object_unref (pixbuf_scaled);
-       g_strfreev (mime_types);
+       do {
+               GdkPixbuf *pixbuf_scaled = NULL;
+               gboolean   saved;
+               gint       new_width, new_height;
+               GError    *error = NULL;
+
+               g_free (converted_image_data);
+
+               if (factor != 1) {
+                       new_width = width * factor;
+                       new_height = height * factor;
+                       pixbuf_scaled = gdk_pixbuf_scale_simple (pixbuf,
+                                                                new_width,
+                                                                new_height,
+                                                                GDK_INTERP_HYPER);
+               } else {
+                       new_width = width;
+                       new_height = height;
+                       pixbuf_scaled = g_object_ref (pixbuf);
+               }
+
+               DEBUG ("Trying with factor %f (%dx%d) and format %s...", factor,
+                       new_width, new_height, new_format_name);
+
+               saved = gdk_pixbuf_save_to_buffer (pixbuf_scaled,
+                                                  &converted_image_data,
+                                                  &converted_image_size,
+                                                  new_format_name,
+                                                  &error, NULL);
+
+               if (!saved) {
+                       g_free (new_format_name);
+                       g_free (new_mime_type);
+                       avatar_chooser_error_show (chooser,
+                               _("Couldn't convert image"),
+                               error ? error->message : NULL);
+                       g_clear_error (&error);
+                       return NULL;
+               }
+
+               DEBUG ("Produced an image data of %"G_GSIZE_FORMAT" bytes.",
+                       converted_image_size);
+
+               if (max_size == 0)
+                       break;
+
+               /* Make a binary search for the bigest factor that produce
+                * an image data size less than max_size */
+               if (converted_image_size > max_size)
+                       max_factor = factor;
+               if (converted_image_size < max_size)
+                       min_factor = factor;
+               factor = (min_factor + max_factor)/2;
+
+               /* We are done if either:
+                * - min_factor == max_factor. That happens if we resized to
+                *   the max required dimension and the produced data size is
+                *   less than max_size.
+                * - The data size is close enough to max_size. Here we accept
+                *   a difference of 1k.
+                */
+       } while (min_factor != max_factor &&
+                ABS (max_size - converted_image_size) > 1024);
+       g_free (new_format_name);
+
+       /* Takes ownership of new_mime_type and converted_image_data */
+       avatar = empathy_avatar_new (converted_image_data,
+               converted_image_size, new_mime_type, NULL);
+
        return avatar;
 }
 
@@ -475,25 +591,21 @@ avatar_chooser_clear_image (EmpathyAvatarChooser *chooser)
 }
 
 static void
-avatar_chooser_set_image (EmpathyAvatarChooser *chooser,
-                         gchar                *data,
-                         gsize                 size,
-                         gboolean              set_locally)
+avatar_chooser_set_image_from_data (EmpathyAvatarChooser *chooser,
+                                   gchar                *data,
+                                   gsize                 size,
+                                   gboolean              set_locally)
 {
-       EmpathyAvatarChooserPriv *priv = GET_PRIV (chooser);
-
-       GdkPixbuf     *pixbuf, *pixbuf_view;
-       GtkWidget     *image;
+       GdkPixbuf     *pixbuf;
        EmpathyAvatar *avatar = NULL;
        gchar         *mime_type = NULL;
 
        if (data == NULL) {
                avatar_chooser_clear_image (chooser);
-               g_free (data);
                return;
        }
 
-       pixbuf = empathy_pixbuf_from_data (data, size, &mime_type);
+       pixbuf = empathy_pixbuf_from_data_and_mime (data, size, &mime_type);
        if (pixbuf == NULL) {
                g_free (data);
                return;
@@ -502,16 +614,68 @@ avatar_chooser_set_image (EmpathyAvatarChooser *chooser,
        /* avatar takes ownership of data and mime_type */
        avatar = empathy_avatar_new (data, size, mime_type, NULL);
 
+       avatar_chooser_set_image (chooser, avatar, pixbuf, set_locally);
+}
+
+static void
+avatar_chooser_set_image_from_avatar (EmpathyAvatarChooser *chooser,
+                                     EmpathyAvatar        *avatar,
+                                     gboolean              set_locally)
+{
+       GdkPixbuf *pixbuf;
+       gchar     *mime_type = NULL;
+
+       g_assert (avatar != NULL);
+
+       pixbuf = empathy_pixbuf_from_data_and_mime (avatar->data,
+                                                   avatar->len,
+                                                   &mime_type);
+       if (pixbuf == NULL) {
+               DEBUG ("couldn't make a pixbuf from avatar; giving up");
+               return;
+       }
+
+       if (avatar->format == NULL) {
+               avatar->format = mime_type;
+       } else {
+               if (strcmp (mime_type, avatar->format)) {
+                       DEBUG ("avatar->format is %s; gdkpixbuf yields %s!",
+                               avatar->format, mime_type);
+               }
+               g_free (mime_type);
+       }
+
+       empathy_avatar_ref (avatar);
+
+       avatar_chooser_set_image (chooser, avatar, pixbuf, set_locally);
+}
+
+static void
+avatar_chooser_set_image (EmpathyAvatarChooser *chooser,
+                         EmpathyAvatar        *avatar,
+                         GdkPixbuf            *pixbuf,
+                         gboolean              set_locally)
+{
+       EmpathyAvatarChooserPriv *priv = GET_PRIV (chooser);
+       GdkPixbuf                *pixbuf_view;
+       GtkWidget                *image;
+
+       g_assert (avatar != NULL);
+       g_assert (pixbuf != NULL);
+
        if (set_locally) {
-               EmpathyAvatar *conv = avatar_chooser_maybe_convert_and_scale (
-                       chooser, pixbuf, avatar);
+               EmpathyAvatar *conv;
+
+               conv = avatar_chooser_maybe_convert_and_scale (chooser,
+                       pixbuf, avatar);
                empathy_avatar_unref (avatar);
-               avatar = conv;
-       }
 
-       if (avatar == NULL) {
-               /* An error occured; don't change the avatar. */
-               return;
+               if (conv == NULL) {
+                       /* An error occured; don't change the avatar. */
+                       return;
+               }
+
+               avatar = conv;
        }
 
        if (priv->avatar != NULL) {
@@ -545,7 +709,7 @@ avatar_chooser_set_image_from_file (EmpathyAvatarChooser *chooser,
                return;
        }
 
-       avatar_chooser_set_image (chooser, image_data, image_size, TRUE);
+       avatar_chooser_set_image_from_data (chooser, image_data, image_size, TRUE);
 }
 
 static gboolean
@@ -675,10 +839,10 @@ avatar_chooser_drag_data_received_cb (GtkWidget          *widget,
                                                                  data, size,
                                                                  NULL, NULL);
                                if (bytes_read != -1) {
-                                       avatar_chooser_set_image (chooser,
-                                                                 data,
-                                                                 (gsize) bytes_read,
-                                                                 TRUE);
+                                       avatar_chooser_set_image_from_data (
+                                               chooser, data,
+                                               (gsize) bytes_read,
+                                               TRUE);
                                        handled = TRUE;
                                }
 
@@ -734,6 +898,8 @@ avatar_chooser_response_cb (GtkWidget            *widget,
 {
        EmpathyAvatarChooserPriv *priv = GET_PRIV (chooser);
 
+       priv->chooser_dialog = NULL;
+
        if (response == GTK_RESPONSE_CANCEL) {
                goto out;
        }
@@ -779,8 +945,14 @@ avatar_chooser_clicked_cb (GtkWidget            *button,
        const gchar    *default_dir = DEFAULT_DIR;
        const gchar    *pics_dir;
        GtkFileFilter  *filter;
+       EmpathyAvatarChooserPriv *priv = GET_PRIV (chooser);
+
+       if (priv->chooser_dialog) {
+               gtk_window_present (GTK_WINDOW (priv->chooser_dialog));
+               return;
+       }
 
-       chooser_dialog = GTK_FILE_CHOOSER (
+       priv->chooser_dialog = GTK_FILE_CHOOSER (
                gtk_file_chooser_dialog_new (_("Select Your Avatar Image"),
                                             empathy_get_toplevel_window (GTK_WIDGET (chooser)),
                                             GTK_FILE_CHOOSER_ACTION_OPEN,
@@ -791,6 +963,8 @@ avatar_chooser_clicked_cb (GtkWidget            *button,
                                             GTK_STOCK_OPEN,
                                             GTK_RESPONSE_OK,
                                             NULL));
+       chooser_dialog = priv->chooser_dialog;
+       gtk_window_set_destroy_with_parent (GTK_WINDOW (chooser_dialog), TRUE);
 
        /* Get special dirs */
        empathy_conf_get_string (empathy_conf_get (),
@@ -868,9 +1042,6 @@ empathy_avatar_chooser_new ()
        return g_object_new (EMPATHY_TYPE_AVATAR_CHOOSER, NULL);
 }
 
-/* FIXME: when the avatar passed to this function actually can be relied upon to
- * contain a mime type, we can probably just ref it and store it.
- */
 void
 empathy_avatar_chooser_set (EmpathyAvatarChooser *chooser,
                            EmpathyAvatar        *avatar)
@@ -878,8 +1049,7 @@ empathy_avatar_chooser_set (EmpathyAvatarChooser *chooser,
        g_return_if_fail (EMPATHY_IS_AVATAR_CHOOSER (chooser));
 
        if (avatar != NULL) {
-               gchar *data = g_memdup (avatar->data, avatar->len);
-               avatar_chooser_set_image (chooser, data, avatar->len, FALSE);
+               avatar_chooser_set_image_from_avatar (chooser, avatar, FALSE);
        } else {
                avatar_chooser_clear_image (chooser);
        }