diff options
Diffstat (limited to 'widgets/misc/e-image-chooser.c')
| -rw-r--r-- | widgets/misc/e-image-chooser.c | 532 |
1 files changed, 0 insertions, 532 deletions
diff --git a/widgets/misc/e-image-chooser.c b/widgets/misc/e-image-chooser.c deleted file mode 100644 index ac71a20d24..0000000000 --- a/widgets/misc/e-image-chooser.c +++ /dev/null @@ -1,532 +0,0 @@ -/* -*- 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 <toshok@ximian.com> - * - * 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 <stdio.h> -#include <string.h> - -#include <gtk/gtkalignment.h> -#include <gtk/gtkframe.h> -#include <gtk/gtkimage.h> -#include <gtk/gtkbutton.h> -#include <gtk/gtkdnd.h> - -#include <libgnomevfs/gnome-vfs-ops.h> -#include <libgnome/gnome-i18n.h> - -#include "e-image-chooser.h" -#include "e-util-marshal.h" - -struct _EImageChooserPrivate { - - GtkWidget *frame; - 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); -#if 0 -static void e_image_chooser_set_property (GObject *object, guint prop_id, const GValue *value, GParamSpec *pspec); -static void e_image_chooser_get_property (GObject *object, guint prop_id, GValue *value, GParamSpec *pspec); -#endif -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 void image_drag_leave_cb (GtkWidget *widget, - GdkDragContext *context, - 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, - e_util_marshal_NONE__NONE, - GTK_TYPE_NONE, 0); - - /* - object_class->set_property = e_image_chooser_set_property; - object_class->get_property = e_image_chooser_get_property; - */ - object_class->dispose = e_image_chooser_dispose; -} - -#if UI_CHANGE_OK -static void -browse_for_image_cb (GtkWidget *button, gpointer data) -{ -} -#endif - -static void -e_image_chooser_init (EImageChooser *chooser) -{ - EImageChooserPrivate *priv; - GtkWidget *alignment; - - priv = chooser->priv = g_new0 (EImageChooserPrivate, 1); - - alignment = gtk_alignment_new (0, 0, 0, 0); - priv->frame = gtk_frame_new (""); - priv->image = gtk_image_new (); - - gtk_container_add (GTK_CONTAINER (alignment), priv->image); - -#if UI_CHANGE_OK - priv->browse_button = gtk_button_new_with_label (_("Choose Image")); -#endif - - gtk_frame_set_shadow_type (GTK_FRAME (priv->frame), GTK_SHADOW_NONE); - - gtk_container_add (GTK_CONTAINER (priv->frame), alignment); - gtk_box_set_homogeneous (GTK_BOX (chooser), FALSE); - gtk_box_pack_start (GTK_BOX (chooser), priv->frame, TRUE, TRUE, 0); -#if UI_CHANGE_OK - gtk_box_pack_start (GTK_BOX (chooser), priv->browse_button, FALSE, FALSE, 0); - - g_signal_connect (priv->browse_button, "clicked", G_CALLBACK (browse_for_image_cb), NULL); -#endif - - 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_leave", G_CALLBACK (image_drag_leave_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->frame); -#if UI_CHANGE_OK - gtk_widget_show (priv->browse_button); -#endif - - /* 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); - - pixbuf = gdk_pixbuf_loader_get_pixbuf (loader); - if (pixbuf) - gdk_pixbuf_ref (pixbuf); - gdk_pixbuf_loader_close (loader, NULL); - g_object_unref (loader); - - if (pixbuf) { - GdkPixbuf *scaled; - GdkPixbuf *composite; - - float scale; - int new_height, new_width; - - new_height = gdk_pixbuf_get_height (pixbuf); - new_width = gdk_pixbuf_get_width (pixbuf); - - printf ("new dimensions = (%d,%d)\n", new_width, new_height); - - if (chooser->priv->image_height == 0 - && chooser->priv->image_width == 0) { - printf ("initial setting of an image. no scaling\n"); - scale = 1.0; - } - else if (chooser->priv->image_height < new_height - || chooser->priv->image_width < new_width) { - /* we need to scale down */ - printf ("we need to scale down\n"); - if (new_height > new_width) - scale = (float)chooser->priv->image_height / new_height; - else - scale = (float)chooser->priv->image_width / new_width; - } - else { - /* we need to scale up */ - printf ("we need to scale up\n"); - if (new_height > new_width) - scale = (float)new_height / chooser->priv->image_height; - else - scale = (float)new_width / chooser->priv->image_width; - } - - printf ("scale = %g\n", scale); - - 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->priv->image_width); - new_height = MIN (new_height, chooser->priv->image_height); - - printf ("new scaled dimensions = (%d,%d)\n", new_width, new_height); - - scaled = gdk_pixbuf_scale_simple (pixbuf, - new_width, new_height, - GDK_INTERP_BILINEAR); - - composite = gdk_pixbuf_new (GDK_COLORSPACE_RGB, TRUE, gdk_pixbuf_get_bits_per_sample (pixbuf), - chooser->priv->image_width, chooser->priv->image_height); - - gdk_pixbuf_fill (composite, 0x00000000); - - gdk_pixbuf_copy_area (scaled, 0, 0, new_width, new_height, - composite, - chooser->priv->image_width / 2 - new_width / 2, - chooser->priv->image_height / 2 - new_height / 2); - - gtk_image_set_from_pixbuf (GTK_IMAGE (chooser->priv->image), composite); - gdk_pixbuf_unref (scaled); - gdk_pixbuf_unref (composite); - } - - gdk_pixbuf_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); - gtk_frame_set_shadow_type (GTK_FRAME (chooser->priv->frame), GTK_SHADOW_IN); - return TRUE; - } - - g_free (possible_type); - } - - gtk_frame_set_shadow_type (GTK_FRAME (chooser->priv->frame), GTK_SHADOW_NONE); - return FALSE; -} - -static void -image_drag_leave_cb (GtkWidget *widget, - GdkDragContext *context, - guint time, EImageChooser *chooser) -{ - gtk_frame_set_shadow_type (GTK_FRAME (chooser->priv->frame), GTK_SHADOW_NONE); -} - -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) { - gtk_frame_set_shadow_type (GTK_FRAME (chooser->priv->frame), GTK_SHADOW_NONE); - 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); - gtk_frame_set_shadow_type (GTK_FRAME (chooser->priv->frame), GTK_SHADOW_NONE); - return TRUE; - } - - g_free (possible_type); - } - - gtk_frame_set_shadow_type (GTK_FRAME (chooser->priv->frame), GTK_SHADOW_NONE); - 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 (selection_data->target); - - printf ("target_type == %s\n", target_type); - - if (!strcmp (target_type, URI_LIST_TYPE)) { - GnomeVFSResult result; - GnomeVFSHandle *handle; - char *uri; - char *nl = strstr (selection_data->data, "\r\n"); - char *buf = NULL; - GnomeVFSFileInfo info; - - if (nl) - uri = g_strndup (selection_data->data, nl - (char*)selection_data->data); - else - uri = g_strdup (selection_data->data); - - printf ("uri == %s\n", uri); - - result = gnome_vfs_open (&handle, uri, GNOME_VFS_OPEN_READ); - if (result == GNOME_VFS_OK) { - result = gnome_vfs_get_file_info_from_handle (handle, &info, GNOME_VFS_FILE_INFO_DEFAULT); - if (result == GNOME_VFS_OK) { - GnomeVFSFileSize num_left; - GnomeVFSFileSize num_read; - GnomeVFSFileSize total_read; - - printf ("file size = %d\n", (int)info.size); - buf = g_malloc (info.size); - - num_left = info.size; - total_read = 0; - - while ((result = gnome_vfs_read (handle, buf + total_read, num_left, &num_read)) == GNOME_VFS_OK) { - num_left -= num_read; - total_read += num_read; - } - - printf ("read %d bytes\n", (int)total_read); - if (set_image_from_data (chooser, buf, total_read)) { - handled = TRUE; - } - else { - /* XXX we should pop up a warning dialog here */ - g_free (buf); - } - } - - gnome_vfs_close (handle); - } - else { - printf ("gnome_vfs_open failed (%s)\n", gnome_vfs_result_to_string (result)); - } - - 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; -} |