diff options
Diffstat (limited to 'plugins/image-inline/image-inline.c')
| -rw-r--r-- | plugins/image-inline/image-inline.c | 475 |
1 files changed, 0 insertions, 475 deletions
diff --git a/plugins/image-inline/image-inline.c b/plugins/image-inline/image-inline.c deleted file mode 100644 index 0b9cfac41b..0000000000 --- a/plugins/image-inline/image-inline.c +++ /dev/null @@ -1,475 +0,0 @@ -/* - * image-inline.c - * - * This program 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. - * - * 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 Lesser General Public License - * along with this program; if not, see <http://www.gnu.org/licenses/>. - * - * - * Copyright (C) 1999-2008 Novell, Inc. (www.novell.com) - * - */ - -#ifdef HAVE_CONFIG_H -#include <config.h> -#endif - -#include <stdlib.h> -#include <gtk/gtk.h> -#include <glib/gi18n-lib.h> -#include <gtkhtml/gtkhtml-embedded.h> -#include <gtkimageview/gtkimagescrollwin.h> - -#include <mail/em-format-hook.h> -#include <mail/em-format-html-display.h> - -static gint org_gnome_image_inline_classid; - -/* Forward Declarations */ -void org_gnome_image_inline_format (gpointer ep, EMFormatHookTarget *target); - -typedef struct _ImageInlinePObject ImageInlinePObject; - -struct _ImageInlinePObject { - EMFormatHTMLPObject object; - - CamelMimePart *mime_part; - GdkPixbuf *pixbuf; - GtkWidget *widget; -}; - -static void -auto_rotate (ImageInlinePObject *image_object) -{ - GdkPixbuf *pixbuf; - GdkPixbufRotation rotation; - const gchar *orientation; - gboolean flip; - - /* Check for an "orientation" pixbuf option and honor it. */ - - pixbuf = image_object->pixbuf; - orientation = gdk_pixbuf_get_option (pixbuf, "orientation"); - - if (orientation == NULL) - return; - - switch (strtol (orientation, NULL, 10)) { - case 1: /* top - left */ - rotation = GDK_PIXBUF_ROTATE_NONE; - flip = FALSE; - break; - - case 2: /* top - right */ - rotation = GDK_PIXBUF_ROTATE_NONE; - flip = TRUE; - break; - - case 3: /* bottom - right */ - rotation = GDK_PIXBUF_ROTATE_UPSIDEDOWN; - flip = FALSE; - break; - - case 4: /* bottom - left */ - rotation = GDK_PIXBUF_ROTATE_UPSIDEDOWN; - flip = TRUE; - break; - - case 5: /* left/top */ - rotation = GDK_PIXBUF_ROTATE_CLOCKWISE; - flip = TRUE; - break; - - case 6: /* right/top */ - rotation = GDK_PIXBUF_ROTATE_CLOCKWISE; - flip = FALSE; - break; - - case 7: /* right/bottom */ - rotation = GDK_PIXBUF_ROTATE_COUNTERCLOCKWISE; - flip = TRUE; - break; - - case 8: /* left/bottom */ - rotation = GDK_PIXBUF_ROTATE_COUNTERCLOCKWISE; - flip = FALSE; - break; - - default: - g_return_if_reached (); - } - - if (rotation != GDK_PIXBUF_ROTATE_NONE) { - pixbuf = gdk_pixbuf_rotate_simple (pixbuf, rotation); - g_return_if_fail (pixbuf != NULL); - g_object_unref (image_object->pixbuf); - image_object->pixbuf = pixbuf; - } - - if (flip) { - pixbuf = gdk_pixbuf_flip (pixbuf, TRUE); - g_return_if_fail (pixbuf != NULL); - g_object_unref (image_object->pixbuf); - image_object->pixbuf = pixbuf; - } -} - -static void -set_drag_source (GtkImageView *image_view) -{ - GtkTargetEntry *targets; - GtkTargetList *list; - gint n_targets; - - list = gtk_target_list_new (NULL, 0); - gtk_target_list_add_uri_targets (list, 0); - targets = gtk_target_table_new_from_list (list, &n_targets); - - gtk_drag_source_set ( - GTK_WIDGET (image_view), GDK_BUTTON1_MASK, - targets, n_targets, GDK_ACTION_COPY); - - gtk_target_table_free (targets, n_targets); - gtk_target_list_unref (list); -} - -static gboolean -button_press_press_cb (GtkImageView *image_view, - GdkEvent *button_event, - ImageInlinePObject *image_object) -{ - if (event->type != GDK_2BUTTON_PRESS) - return FALSE; - - if (gtk_image_view_get_zoom (image_view) < 1.0) { - gtk_image_view_set_zoom (image_view, 1.0); - gtk_drag_source_unset (GTK_WIDGET (image_view)); - } else { - gtk_image_view_set_fitting (image_view, TRUE); - set_drag_source (image_view); - } - - return TRUE; -} - -static void -drag_data_get_cb (GtkImageView *image_view, - GdkDragContext *context, - GtkSelectionData *selection, - guint info, - guint time, - ImageInlinePObject *image_object) -{ - EMFormatHTMLDisplay *html_display; - EAttachmentStore *store; - EAttachmentView *view; - EAttachment *attachment = NULL; - GtkTreeRowReference *reference; - GtkTreePath *path; - GList *list, *iter; - - /* XXX This illustrates the lack of integration between EMFormat - * and EAttachment, in that we now have to search through the - * attachment store to find an attachment whose CamelMimePart - * matches ours. This allows us to defer to EAttachmentView - * for the drag-data-get implementation. */ - - html_display = EM_FORMAT_HTML_DISPLAY (image_object->object.format); - view = em_format_html_display_get_attachment_view (html_display); - - store = e_attachment_view_get_store (view); - list = e_attachment_store_get_attachments (store); - - for (iter = list; iter != NULL; iter = iter->next) { - CamelMimePart *mime_part; - - attachment = E_ATTACHMENT (iter->data); - mime_part = e_attachment_get_mime_part (attachment); - - if (mime_part == image_object->mime_part) { - g_object_ref (attachment); - break; - } - - attachment = NULL; - } - - g_list_foreach (list, (GFunc) g_object_unref, NULL); - g_list_free (list); - - /* Make sure we found an EAttachment to select. */ - g_return_if_fail (E_IS_ATTACHMENT (attachment)); - - /* Now select its path in the attachment store. */ - - reference = e_attachment_get_reference (attachment); - g_return_if_fail (gtk_tree_row_reference_valid (reference)); - - path = gtk_tree_row_reference_get_path (reference); - - e_attachment_view_unselect_all (view); - e_attachment_view_select_path (view, path); - - gtk_tree_path_free (path); - - /* Let EAttachmentView handle the rest. */ - - e_attachment_view_drag_data_get ( - view, context, selection, info, time); -} - -static void -size_allocate_cb (GtkHTMLEmbedded *embedded, - GtkAllocation *allocation, - ImageInlinePObject *image_object) -{ - GtkAllocation image_allocation; - EWebView *web_view; - gint pixbuf_width; - gint pixbuf_height; - gint widget_width; - gint widget_height; - gdouble zoom = 1.0; - - web_view = em_format_html_get_web_view (image_object->object.format); - gtk_widget_get_allocation (GTK_WIDGET (web_view), &image_allocation); - widget_width = image_allocation.width - 12; - - pixbuf_width = gdk_pixbuf_get_width (image_object->pixbuf); - pixbuf_height = gdk_pixbuf_get_height (image_object->pixbuf); - - if (pixbuf_width > widget_width) - zoom = (gdouble) widget_width / pixbuf_width; - - widget_width = MIN (widget_width, pixbuf_width); - widget_height = (gint) (zoom * pixbuf_height); - - gtk_widget_set_size_request ( - image_object->widget, widget_width, widget_height); -} - -static void -mouse_wheel_scroll_cb (GtkWidget *image_view, - GdkScrollDirection direction, - ImageInlinePObject *image_object) -{ - GtkOrientation orientation; - GtkScrollType scroll_type; - EWebView *web_view; - gint steps = 2; - - web_view = em_format_html_get_web_view (image_object->object.format); - - switch (direction) { - case GDK_SCROLL_UP: - orientation = GTK_ORIENTATION_VERTICAL; - scroll_type = GTK_SCROLL_STEP_BACKWARD; - break; - - case GDK_SCROLL_DOWN: - orientation = GTK_ORIENTATION_VERTICAL; - scroll_type = GTK_SCROLL_STEP_FORWARD; - break; - - case GDK_SCROLL_LEFT: - orientation = GTK_ORIENTATION_HORIZONTAL; - scroll_type = GTK_SCROLL_STEP_BACKWARD; - break; - - case GDK_SCROLL_RIGHT: - orientation = GTK_ORIENTATION_HORIZONTAL; - scroll_type = GTK_SCROLL_STEP_FORWARD; - break; - - default: - g_return_if_reached (); - } - - while (steps > 0) { - g_signal_emit_by_name ( - web_view, "scroll", - orientation, scroll_type, 2.0, NULL); - steps--; - } -} - -static void -org_gnome_image_inline_pobject_free (EMFormatHTMLPObject *object) -{ - ImageInlinePObject *image_object; - - image_object = (ImageInlinePObject *) object; - - if (image_object->mime_part != NULL) { - g_object_unref (image_object->mime_part); - image_object->mime_part = NULL; - } - - if (image_object->pixbuf != NULL) { - g_object_unref (image_object->pixbuf); - image_object->pixbuf = NULL; - } - - if (image_object->widget != NULL) { - GtkWidget *parent; - - g_signal_handlers_disconnect_by_func ( - image_object->widget, - button_press_press_cb, image_object); - g_signal_handlers_disconnect_by_func ( - image_object->widget, - drag_data_get_cb, image_object); - g_signal_handlers_disconnect_by_func ( - image_object->widget, - mouse_wheel_scroll_cb, image_object); - - parent = gtk_widget_get_parent (image_object->widget); - if (parent != NULL) - g_signal_handlers_disconnect_by_func ( - parent, size_allocate_cb, image_object); - - g_object_unref (image_object->widget); - image_object->widget = NULL; - } -} - -static void -org_gnome_image_inline_decode (ImageInlinePObject *image_object) -{ - GdkPixbuf *pixbuf; - GdkPixbufLoader *loader; - CamelDataWrapper *data_wrapper; - CamelMimePart *mime_part; - CamelMedium *medium; - CamelStream *stream; - GByteArray *array; - GError *error = NULL; - - array = g_byte_array_new (); - mime_part = image_object->mime_part; - medium = CAMEL_MEDIUM (mime_part); - - /* Stream takes ownership of the byte array. */ - stream = camel_stream_mem_new_with_byte_array (array); - data_wrapper = camel_medium_get_content (medium); - camel_data_wrapper_decode_to_stream_sync ( - data_wrapper, stream, NULL, NULL); - - /* Don't trust the content type in the MIME part. It could - * be lying or it could be "application/octet-stream". Let - * the GtkPixbufLoader figure it out. */ - loader = gdk_pixbuf_loader_new (); - gdk_pixbuf_loader_write (loader, array->data, array->len, &error); - - if (error != NULL) { - g_warning ("%s", error->message); - g_error_free (error); - goto exit; - } - - pixbuf = gdk_pixbuf_loader_get_pixbuf (loader); - if (pixbuf != NULL) { - image_object->pixbuf = g_object_ref (pixbuf); - auto_rotate (image_object); - } - - gdk_pixbuf_loader_close (loader, &error); - - if (error != NULL) { - g_warning ("%s", error->message); - g_error_free (error); - goto exit; - } - -exit: - g_object_unref (stream); - g_object_unref (loader); -} - -static gboolean -org_gnome_image_inline_embed (EMFormatHTML *format, - GtkHTMLEmbedded *embedded, - EMFormatHTMLPObject *object) -{ - ImageInlinePObject *image_object; - GtkImageView *image_view; - GtkWidget *container; - GtkWidget *widget; - - image_object = (ImageInlinePObject *) object; - - if (image_object->pixbuf == NULL) - return FALSE; - - container = GTK_WIDGET (embedded); - - widget = gtk_image_view_new (); - gtk_container_add (GTK_CONTAINER (container), widget); - image_object->widget = g_object_ref (widget); - gtk_widget_show (widget); - - image_view = GTK_IMAGE_VIEW (widget); - - gtk_image_view_set_pixbuf ( - image_view, image_object->pixbuf, TRUE); - - set_drag_source (image_view); - - g_signal_connect ( - image_view, "button-press-event", - G_CALLBACK (button_press_press_cb), image_object); - - g_signal_connect ( - image_view, "drag-data-get", - G_CALLBACK (drag_data_get_cb), image_object); - - g_signal_connect ( - embedded, "size-allocate", - G_CALLBACK (size_allocate_cb), image_object); - - g_signal_connect ( - image_view, "mouse-wheel-scroll", - G_CALLBACK (mouse_wheel_scroll_cb), image_object); - - return TRUE; -} - -void -org_gnome_image_inline_format (gpointer ep, - EMFormatHookTarget *target) -{ - ImageInlinePObject *image_object; - gchar *classid; - gchar *content; - - classid = g_strdup_printf ( - "org-gnome-image-inline-display-%d", - org_gnome_image_inline_classid++); - - image_object = (ImageInlinePObject *) - em_format_html_add_pobject ( - EM_FORMAT_HTML (target->format), - sizeof (ImageInlinePObject), - classid, target->part, - org_gnome_image_inline_embed); - - g_object_ref (target->part); - image_object->mime_part = target->part; - - image_object->object.free = org_gnome_image_inline_pobject_free; - org_gnome_image_inline_decode (image_object); - - content = g_strdup_printf ("<object classid=%s></object>", classid); - camel_stream_write_string (target->stream, content, NULL, NULL); - g_free (content); - - g_free (classid); -} |