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/*
 * e-attachment-icon-view.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; 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 <http://www.gnu.org/licenses/>  
 *
 *
 * Copyright (C) 1999-2008 Novell, Inc. (www.novell.com)
 *
 */

#include "e-attachment-icon-view.h"

#include <gdk/gdkkeysyms.h>

#include "e-attachment.h"
#include "e-attachment-store.h"
#include "e-attachment-view.h"

#define E_ATTACHMENT_ICON_VIEW_GET_PRIVATE(obj) \
    (G_TYPE_INSTANCE_GET_PRIVATE \
    ((obj), E_TYPE_ATTACHMENT_ICON_VIEW, EAttachmentIconViewPrivate))

struct _EAttachmentIconViewPrivate {
    EAttachmentViewPrivate view_priv;
};

enum {
    PROP_0,
    PROP_EDITABLE
};

static gpointer parent_class;

static void
attachment_icon_view_set_property (GObject *object,
                                   guint property_id,
                                   const GValue *value,
                                   GParamSpec *pspec)
{
    switch (property_id) {
        case PROP_EDITABLE:
            e_attachment_view_set_editable (
                E_ATTACHMENT_VIEW (object),
                g_value_get_boolean (value));
            return;
    }

    G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
}

static void
attachment_icon_view_get_property (GObject *object,
                                   guint property_id,
                                   GValue *value,
                                   GParamSpec *pspec)
{
    switch (property_id) {
        case PROP_EDITABLE:
            g_value_set_boolean (
                value, e_attachment_view_get_editable (
                E_ATTACHMENT_VIEW (object)));
            return;
    }

    G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
}

static void
attachment_icon_view_dispose (GObject *object)
{
    e_attachment_view_dispose (E_ATTACHMENT_VIEW (object));

    /* Chain up to parent's dispose() method. */
    G_OBJECT_CLASS (parent_class)->dispose (object);
}

static void
attachment_icon_view_finalize (GObject *object)
{
    e_attachment_view_finalize (E_ATTACHMENT_VIEW (object));

    /* Chain up to parent's finalize() method. */
    G_OBJECT_CLASS (parent_class)->finalize (object);
}

static gboolean
attachment_icon_view_button_press_event (GtkWidget *widget,
                                         GdkEventButton *event)
{
    EAttachmentView *view = E_ATTACHMENT_VIEW (widget);

    if (event->button == 3 && event->type == GDK_BUTTON_PRESS) {
        e_attachment_view_show_popup_menu (view, event);
        return TRUE;
    }

    /* Chain up to parent's button_press_event() method. */
    return GTK_WIDGET_CLASS (parent_class)->
        button_press_event (widget, event);
}

static gboolean
attachment_icon_view_key_press_event (GtkWidget *widget,
                                      GdkEventKey *event)
{
    EAttachmentView *view = E_ATTACHMENT_VIEW (widget);

    if (event->keyval == GDK_Delete) {
        e_attachment_view_remove_selected (view, TRUE);
        return TRUE;
    }

    /* Chain up to parent's key_press_event() method. */
    return GTK_WIDGET_CLASS (parent_class)->
        key_press_event (widget, event);
}

static gboolean
attachment_icon_view_drag_motion (GtkWidget *widget,
                                  GdkDragContext *context,
                                  gint x,
                                  gint y,
                                  guint time)
{
    EAttachmentView *view = E_ATTACHMENT_VIEW (widget);

    return e_attachment_view_drag_motion (view, context, x, y, time);
}

static void
attachment_icon_view_drag_data_received (GtkWidget *widget,
                                         GdkDragContext *context,
                                         gint x,
                                         gint y,
                                         GtkSelectionData *selection,
                                         guint info,
                                         guint time)
{
    EAttachmentView *view = E_ATTACHMENT_VIEW (widget);

    e_attachment_view_drag_data_received (
        view, context, x, y, selection, info, time);
}

static gboolean
attachment_icon_view_popup_menu (GtkWidget *widget)
{
    EAttachmentView *view = E_ATTACHMENT_VIEW (widget);

    e_attachment_view_show_popup_menu (view, NULL);

    return TRUE;
}

static EAttachmentViewPrivate *
attachment_icon_view_get_private (EAttachmentView *view)
{
    EAttachmentIconViewPrivate *priv;

    priv = E_ATTACHMENT_ICON_VIEW_GET_PRIVATE (view);

    return &priv->view_priv;
}

static EAttachmentStore *
attachment_icon_view_get_store (EAttachmentView *view)
{
    GtkIconView *icon_view;
    GtkTreeModel *model;

    icon_view = GTK_ICON_VIEW (view);
    model = gtk_icon_view_get_model (icon_view);

    return E_ATTACHMENT_STORE (model);
}

static GtkTreePath *
attachment_icon_view_get_path_at_pos (EAttachmentView *view,
                                      gint x,
                                      gint y)
{
    GtkIconView *icon_view;

    icon_view = GTK_ICON_VIEW (view);

    return gtk_icon_view_get_path_at_pos (icon_view, x, y);
}

static GList *
attachment_icon_view_get_selected_paths (EAttachmentView *view)
{
    GtkIconView *icon_view;

    icon_view = GTK_ICON_VIEW (view);

    return gtk_icon_view_get_selected_items (icon_view);
}

static gboolean
attachment_icon_view_path_is_selected (EAttachmentView *view,
                                       GtkTreePath *path)
{
    GtkIconView *icon_view;

    icon_view = GTK_ICON_VIEW (view);

    return gtk_icon_view_path_is_selected (icon_view, path);
}

static void
attachment_icon_view_select_path (EAttachmentView *view,
                                  GtkTreePath *path)
{
    GtkIconView *icon_view;

    icon_view = GTK_ICON_VIEW (view);

    gtk_icon_view_select_path (icon_view, path);
}

static void
attachment_icon_view_unselect_path (EAttachmentView *view,
                                    GtkTreePath *path)
{
    GtkIconView *icon_view;

    icon_view = GTK_ICON_VIEW (view);

    gtk_icon_view_unselect_path (icon_view, path);
}

static void
attachment_icon_view_select_all (EAttachmentView *view)
{
    GtkIconView *icon_view;

    icon_view = GTK_ICON_VIEW (view);

    gtk_icon_view_select_all (icon_view);
}

static void
attachment_icon_view_unselect_all (EAttachmentView *view)
{
    GtkIconView *icon_view;

    icon_view = GTK_ICON_VIEW (view);

    gtk_icon_view_unselect_all (icon_view);
}

static void
attachment_icon_view_class_init (EAttachmentIconViewClass *class)
{
    GObjectClass *object_class;
    GtkWidgetClass *widget_class;

    parent_class = g_type_class_peek_parent (class);
    g_type_class_add_private (class, sizeof (EAttachmentViewPrivate));

    object_class = G_OBJECT_CLASS (class);
    object_class->set_property = attachment_icon_view_set_property;
    object_class->get_property = attachment_icon_view_get_property;
    object_class->dispose = attachment_icon_view_dispose;
    object_class->finalize = attachment_icon_view_finalize;

    widget_class = GTK_WIDGET_CLASS (class);
    widget_class->button_press_event = attachment_icon_view_button_press_event;
    widget_class->key_press_event = attachment_icon_view_key_press_event;
    widget_class->drag_motion = attachment_icon_view_drag_motion;
    widget_class->drag_data_received = attachment_icon_view_drag_data_received;
    widget_class->popup_menu = attachment_icon_view_popup_menu;

    g_object_class_override_property (
        object_class, PROP_EDITABLE, "editable");
}

static void
attachment_icon_view_iface_init (EAttachmentViewIface *iface)
{
    iface->get_private = attachment_icon_view_get_private;
    iface->get_store = attachment_icon_view_get_store;

    iface->get_path_at_pos = attachment_icon_view_get_path_at_pos;
    iface->get_selected_paths = attachment_icon_view_get_selected_paths;
    iface->path_is_selected = attachment_icon_view_path_is_selected;
    iface->select_path = attachment_icon_view_select_path;
    iface->unselect_path = attachment_icon_view_unselect_path;
    iface->select_all = attachment_icon_view_select_all;
    iface->unselect_all = attachment_icon_view_unselect_all;
}

static void
attachment_icon_view_init (EAttachmentIconView *icon_view)
{
    GtkCellLayout *cell_layout;
    GtkCellRenderer *renderer;

    cell_layout = GTK_CELL_LAYOUT (icon_view);
    icon_view->priv = E_ATTACHMENT_ICON_VIEW_GET_PRIVATE (icon_view);

    e_attachment_view_init (E_ATTACHMENT_VIEW (icon_view));

    gtk_icon_view_set_selection_mode (
        GTK_ICON_VIEW (icon_view), GTK_SELECTION_MULTIPLE);

    renderer = gtk_cell_renderer_pixbuf_new ();
    g_object_set (renderer, "stock-size", GTK_ICON_SIZE_DIALOG, NULL);
    gtk_cell_layout_pack_start (cell_layout, renderer, FALSE);

    gtk_cell_layout_add_attribute (
        cell_layout, renderer, "gicon",
        E_ATTACHMENT_STORE_COLUMN_ICON);

    renderer = gtk_cell_renderer_text_new ();
    g_object_set (
        renderer, "alignment", PANGO_ALIGN_CENTER,
        "xalign", 0.5, NULL);
    gtk_cell_layout_pack_start (cell_layout, renderer, FALSE);

    gtk_cell_layout_add_attribute (
        cell_layout, renderer, "text",
        E_ATTACHMENT_STORE_COLUMN_CAPTION);
}

GType
e_attachment_icon_view_get_type (void)
{
    static GType type = 0;

    if (G_UNLIKELY (type == 0)) {
        static const GTypeInfo type_info = {
            sizeof (EAttachmentIconViewClass),
            (GBaseInitFunc) NULL,
            (GBaseFinalizeFunc) NULL,
            (GClassInitFunc) attachment_icon_view_class_init,
            (GClassFinalizeFunc) NULL,
            NULL,  /* class_data */
            sizeof (EAttachmentIconView),
            0,     /* n_preallocs */
            (GInstanceInitFunc) attachment_icon_view_init,
            NULL   /* value_table */
        };

        static const GInterfaceInfo iface_info = {
            (GInterfaceInitFunc) attachment_icon_view_iface_init,
            (GInterfaceFinalizeFunc) NULL,
            NULL   /* interface_data */
        };

        type = g_type_register_static (
            GTK_TYPE_ICON_VIEW, "EAttachmentIconView",
            &type_info, 0);

        g_type_add_interface_static (
            type, E_TYPE_ATTACHMENT_VIEW, &iface_info);
    }

    return type;
}

GtkWidget *
e_attachment_icon_view_new (void)
{
    return g_object_new (E_TYPE_ATTACHMENT_ICON_VIEW, NULL);
}