From e13eb8a5b52c0b95f5b235c61245277230d565dc Mon Sep 17 00:00:00 2001 From: Matthew Barnes Date: Sun, 8 Nov 2009 01:49:48 -0500 Subject: Add zooming and drag-and-drop to the plugin. A bunch of crusty old code in em-format-html-display.c falls out. --- mail/em-icon-stream.c | 347 -------------------------------------------------- 1 file changed, 347 deletions(-) delete mode 100644 mail/em-icon-stream.c (limited to 'mail/em-icon-stream.c') diff --git a/mail/em-icon-stream.c b/mail/em-icon-stream.c deleted file mode 100644 index 563853adcf..0000000000 --- a/mail/em-icon-stream.c +++ /dev/null @@ -1,347 +0,0 @@ -/* - * 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; either - * version 2 of the License, or (at your option) version 3. - * - * 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 - * Lesser General Public License for more details. - * - * You should have received a copy of the GNU Lesser General Public - * License along with the program; if not, see - * - * - * Authors: - * Jeffrey Stedfast - * Michael Zucchi - * - * Copyright (C) 1999-2008 Novell, Inc. (www.novell.com) - * - */ - -#ifdef HAVE_CONFIG_H -#include -#endif - -#include -#include - -#include -#include -#include "em-icon-stream.h" -#include "e-util/e-icon-factory.h" - -#include "libedataserver/e-msgport.h" - -#define d(x) - -/* fixed-point scale factor for scaled images in cache */ -#define EMIS_SCALE (1024) - -struct _emis_cache_node { - EMCacheNode node; - - GdkPixbuf *pixbuf; -}; - -static void em_icon_stream_class_init (EMIconStreamClass *klass); -static void em_icon_stream_init (CamelObject *object); -static void em_icon_stream_finalize (CamelObject *object); - -static gssize emis_sync_write(CamelStream *stream, const gchar *buffer, gsize n); -static gint emis_sync_close(CamelStream *stream); -static gint emis_sync_flush(CamelStream *stream); - -static EMSyncStreamClass *parent_class = NULL; -static EMCache *emis_cache; - -static void -emis_cache_free(gpointer data) -{ - struct _emis_cache_node *node = data; - - g_object_unref(node->pixbuf); -} - -CamelType -em_icon_stream_get_type (void) -{ - static CamelType type = CAMEL_INVALID_TYPE; - - if (type == CAMEL_INVALID_TYPE) { - parent_class = (EMSyncStreamClass *)em_sync_stream_get_type(); - type = camel_type_register (em_sync_stream_get_type(), - "EMIconStream", - sizeof (EMIconStream), - sizeof (EMIconStreamClass), - (CamelObjectClassInitFunc) em_icon_stream_class_init, - NULL, - (CamelObjectInitFunc) em_icon_stream_init, - (CamelObjectFinalizeFunc) em_icon_stream_finalize); - - emis_cache = em_cache_new(60, sizeof(struct _emis_cache_node), emis_cache_free); - } - - return type; -} - -static void -em_icon_stream_class_init (EMIconStreamClass *klass) -{ - ((EMSyncStreamClass *)klass)->sync_write = emis_sync_write; - ((EMSyncStreamClass *)klass)->sync_flush = emis_sync_flush; - ((EMSyncStreamClass *)klass)->sync_close = emis_sync_close; -} - -static void -em_icon_stream_init (CamelObject *object) -{ - EMIconStream *emis = (EMIconStream *)object; - - emis = emis; -} - -static void -emis_cleanup(EMIconStream *emis) -{ - if (emis->loader) { - gdk_pixbuf_loader_close(emis->loader, NULL); - g_object_unref(emis->loader); - emis->loader = NULL; - } - - if (emis->destroy_id) { - g_signal_handler_disconnect(emis->image, emis->destroy_id); - emis->destroy_id = 0; - } - - g_free(emis->key); - emis->key = NULL; - - emis->image = NULL; - emis->sync.cancel = TRUE; -} - -static void -em_icon_stream_finalize(CamelObject *object) -{ - EMIconStream *emis = (EMIconStream *)object; - - emis_cleanup(emis); -} - -static gssize -emis_sync_write(CamelStream *stream, const gchar *buffer, gsize n) -{ - EMIconStream *emis = EM_ICON_STREAM (stream); - - if (emis->loader == NULL) - return -1; - - if (!gdk_pixbuf_loader_write(emis->loader, (const guchar *)buffer, n, NULL)) { - emis_cleanup(emis); - return -1; - } - - return (gssize) n; -} - -static gint -emis_sync_flush(CamelStream *stream) -{ - return 0; -} - -static GdkPixbuf * -emis_fit(GdkPixbuf *pixbuf, gint maxwidth, gint maxheight, gint *scale) -{ - GdkPixbuf *mini = NULL; - gint width, height; - - width = gdk_pixbuf_get_width(pixbuf); - height = gdk_pixbuf_get_height(pixbuf); - - if ((maxwidth && width > maxwidth) - || (maxheight && height > maxheight)) { - if (width >= height || maxheight == 0) { - if (scale) - *scale = maxwidth * EMIS_SCALE / width; - height = height * maxwidth / width; - width = maxwidth; - } else { - if (scale) - *scale = maxheight * EMIS_SCALE / height; - width = width * maxheight / height; - height = maxheight; - } - - /* check if we don't want to scale down too much, if so, do 1 pixel width/height */ - if (width <= 0) - width = 1; - - if (height <= 0) - height = 1; - - mini = e_icon_factory_pixbuf_scale (pixbuf, width, height); - } - - return mini; -} - -static gint -emis_sync_close(CamelStream *stream) -{ - EMIconStream *emis = (EMIconStream *)stream; - GdkPixbuf *pixbuf, *mini; - struct _emis_cache_node *node; - gchar *scalekey; - gint scale; - - if (emis->loader == NULL) - return -1; - - gdk_pixbuf_loader_close(emis->loader, NULL); - - pixbuf = gdk_pixbuf_loader_get_pixbuf(emis->loader); - if (pixbuf == NULL) { - d(printf("couldn't get pixbuf from loader\n")); - emis_cleanup(emis); - return -1; - } - - mini = emis_fit(pixbuf, emis->width, emis->height, &scale); - gtk_image_set_from_pixbuf(emis->image, mini?mini:pixbuf); - - if (emis->keep) { - node = (struct _emis_cache_node *)em_cache_node_new(emis_cache, emis->key); - node->pixbuf = g_object_ref(pixbuf); - em_cache_add(emis_cache, (EMCacheNode *)node); - } - - if (!emis->keep || mini) { - scalekey = g_alloca(strlen(emis->key) + 20); - sprintf(scalekey, "%s.%x", emis->key, scale); - node = (struct _emis_cache_node *)em_cache_node_new(emis_cache, scalekey); - node->pixbuf = mini?mini:g_object_ref(pixbuf); - em_cache_add(emis_cache, (EMCacheNode *)node); - } - - g_object_unref(emis->loader); - emis->loader = NULL; - - g_signal_handler_disconnect(emis->image, emis->destroy_id); - emis->destroy_id = 0; - - return 0; -} - -static void -emis_image_destroy(GtkImage *image, EMIconStream *emis) -{ - emis_cleanup(emis); -} - -CamelStream * -em_icon_stream_new(GtkImage *image, const gchar *key, guint maxwidth, guint maxheight, gint keep) -{ - EMIconStream *new; - - new = EM_ICON_STREAM(camel_object_new(EM_ICON_STREAM_TYPE)); - new->width = maxwidth; - new->height = maxheight; - new->image = image; - new->keep = keep; - new->destroy_id = g_signal_connect(image, "destroy", G_CALLBACK(emis_image_destroy), new); - new->loader = gdk_pixbuf_loader_new(); - new->key = g_strdup(key); - - return (CamelStream *)new; -} - -GdkPixbuf * -em_icon_stream_get_image(const gchar *tkey, guint maxwidth, guint maxheight) -{ - struct _emis_cache_node *node; - GdkPixbuf *pb = NULL; - const gchar *key; - - key = tkey ? tkey : ""; - - /* forces the cache to be setup if not */ - em_icon_stream_get_type(); - - node = (struct _emis_cache_node *)em_cache_lookup(emis_cache, key); - if (node) { - gint width, height; - - pb = node->pixbuf; - g_object_ref(pb); - em_cache_node_unref(emis_cache, (EMCacheNode *)node); - - width = gdk_pixbuf_get_width(pb); - height = gdk_pixbuf_get_height(pb); - - if ((maxwidth && width > maxwidth) - || (maxheight && height > maxheight)) { - guint scale; - gchar *realkey; - - if (maxheight == 0 || width >= height) - scale = width * EMIS_SCALE / maxwidth; - else - scale = height * EMIS_SCALE / maxheight; - - realkey = g_alloca(strlen(key)+20); - sprintf(realkey, "%s.%x", key, scale); - node = (struct _emis_cache_node *)em_cache_lookup(emis_cache, realkey); - if (node) { - g_object_unref(pb); - pb = node->pixbuf; - g_object_ref(pb); - em_cache_node_unref(emis_cache, (EMCacheNode *)node); - } else { - GdkPixbuf *mini = emis_fit(pb, maxwidth, maxheight, NULL); - - g_object_unref(pb); - pb = mini; - node = (struct _emis_cache_node *)em_cache_node_new(emis_cache, realkey); - node->pixbuf = pb; - g_object_ref(pb); - em_cache_add(emis_cache, (EMCacheNode *)node); - } - } - } - - return pb; -} - -gint -em_icon_stream_is_resized(const gchar *tkey, guint maxwidth, guint maxheight) -{ - gint res = FALSE; - struct _emis_cache_node *node; - const gchar *key; - - key = tkey ? tkey : ""; - - /* forces the cache to be setup if not */ - em_icon_stream_get_type(); - - node = (struct _emis_cache_node *)em_cache_lookup(emis_cache, key); - if (node) { - res = (maxwidth && gdk_pixbuf_get_width(node->pixbuf) > maxwidth) - || (maxheight && gdk_pixbuf_get_width(node->pixbuf) > maxheight); - - em_cache_node_unref(emis_cache, (EMCacheNode *)node); - } - - return res; -} - -void -em_icon_stream_clear_cache(void) -{ - em_cache_clear(emis_cache); -} -- cgit v1.2.3