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/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
/* 
 * e-minicard-view-widget.c
 * Copyright (C) 2000  Helix Code, Inc.
 * Author: Chris Lahey <clahey@helixcode.com>
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License as
 * published by the Free Software Foundation; either version 2 of the
 * License, or (at your option) any later version.
 *
 * 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 <gtk/gtksignal.h>
#include <libgnomeui/gnome-canvas-rect-ellipse.h>
#include <gal/widgets/e-canvas.h>

#include "e-minicard-view-widget.h"

static void e_minicard_view_widget_init      (EMinicardViewWidget        *widget);
static void e_minicard_view_widget_class_init    (EMinicardViewWidgetClass   *klass);
static void e_minicard_view_widget_set_arg       (GtkObject *o, GtkArg *arg, guint arg_id);
static void e_minicard_view_widget_get_arg       (GtkObject *object, GtkArg *arg, guint arg_id);
static void e_minicard_view_widget_destroy       (GtkObject *object);
static void e_minicard_view_widget_reflow        (ECanvas *canvas);
static void e_minicard_view_widget_size_allocate (GtkWidget *widget, GtkAllocation *allocation);
static void e_minicard_view_widget_realize       (GtkWidget *widget);

static void selection_change                     (ESelectionModel *esm, EMinicardViewWidget *widget);

static ECanvasClass *parent_class = NULL;

/* The arguments we take */
enum {
    ARG_0,
    ARG_BOOK,
    ARG_QUERY,
    ARG_EDITABLE
};

enum {
    SELECTION_CHANGE,
    LAST_SIGNAL
};

static guint e_minicard_view_widget_signals [LAST_SIGNAL] = {0, };

GtkType
e_minicard_view_widget_get_type (void)
{
  static GtkType type = 0;

  if (!type)
    {
      static const GtkTypeInfo info =
      {
        "EMinicardViewWidget",
        sizeof (EMinicardViewWidget),
        sizeof (EMinicardViewWidgetClass),
        (GtkClassInitFunc) e_minicard_view_widget_class_init,
        (GtkObjectInitFunc) e_minicard_view_widget_init,
        /* reserved_1 */ NULL,
        /* reserved_2 */ NULL,
        (GtkClassInitFunc) NULL,
      };

      type = gtk_type_unique (e_canvas_get_type (), &info);
    }

  return type;
}

static void
e_minicard_view_widget_class_init (EMinicardViewWidgetClass *klass)
{
    GtkObjectClass *object_class;
    GtkWidgetClass *widget_class;
    ECanvasClass *canvas_class;

    object_class = (GtkObjectClass*) klass;
    widget_class = GTK_WIDGET_CLASS (klass);
    canvas_class = E_CANVAS_CLASS (klass);

    parent_class = gtk_type_class (e_canvas_get_type ());

    gtk_object_add_arg_type ("EMinicardViewWidget::book", GTK_TYPE_OBJECT, 
                 GTK_ARG_READWRITE, ARG_BOOK);
    gtk_object_add_arg_type ("EMinicardViewWidget::query", GTK_TYPE_STRING,
                 GTK_ARG_READWRITE, ARG_QUERY);
    gtk_object_add_arg_type ("EMinicardViewWidget::editable", GTK_TYPE_BOOL,
                 GTK_ARG_READWRITE, ARG_EDITABLE);

    e_minicard_view_widget_signals [SELECTION_CHANGE] =
        gtk_signal_new ("selection_change",
                GTK_RUN_LAST,
                object_class->type,
                GTK_SIGNAL_OFFSET (EMinicardViewWidgetClass, selection_change),
                gtk_marshal_NONE__NONE,
                GTK_TYPE_NONE, 0);

    gtk_object_class_add_signals (object_class, e_minicard_view_widget_signals, LAST_SIGNAL);

    object_class->set_arg       = e_minicard_view_widget_set_arg;
    object_class->get_arg       = e_minicard_view_widget_get_arg;
    object_class->destroy       = e_minicard_view_widget_destroy;

    widget_class->realize       = e_minicard_view_widget_realize;
    widget_class->size_allocate = e_minicard_view_widget_size_allocate;

    canvas_class->reflow        = e_minicard_view_widget_reflow;
}

static void
e_minicard_view_widget_init (EMinicardViewWidget *view)
{
    view->emv = NULL;
    view->rect = NULL;

    view->book = NULL;
    view->query = NULL;
    view->editable = FALSE;
}

GtkWidget *
e_minicard_view_widget_new (EAddressbookReflowAdapter *adapter)
{
    EMinicardViewWidget *widget = E_MINICARD_VIEW_WIDGET (gtk_type_new (e_minicard_view_widget_get_type ()));

    widget->adapter = adapter;
    gtk_object_ref (GTK_OBJECT (widget->adapter));

    return GTK_WIDGET (widget);
}

static void
e_minicard_view_widget_set_arg (GtkObject *o, GtkArg *arg, guint arg_id)
{
    EMinicardViewWidget *emvw;

    emvw = E_MINICARD_VIEW_WIDGET (o);

    switch (arg_id){
    case ARG_BOOK:
        if (emvw->book)
            gtk_object_unref(GTK_OBJECT(emvw->book));
        if (GTK_VALUE_OBJECT (*arg)) {
            emvw->book = E_BOOK(GTK_VALUE_OBJECT (*arg));
            if (emvw->book)
                gtk_object_ref(GTK_OBJECT(emvw->book));
        } else
            emvw->book = NULL;
        if (emvw->emv)
            gtk_object_set(GTK_OBJECT(emvw->emv),
                       "book", emvw->book,
                       NULL);
        break;
    case ARG_QUERY:
        emvw->query = g_strdup(GTK_VALUE_STRING (*arg));
        if (emvw->emv)
            gtk_object_set(GTK_OBJECT(emvw->emv),
                       "query", emvw->query,
                       NULL);
        break;
    case ARG_EDITABLE:
        emvw->editable = GTK_VALUE_BOOL(*arg);
        if (emvw->emv)
        gtk_object_set (GTK_OBJECT(emvw->emv),
                "editable", emvw->editable,
                NULL);
        break;
    }
}

static void
e_minicard_view_widget_get_arg (GtkObject *object, GtkArg *arg, guint arg_id)
{
    EMinicardViewWidget *emvw;

    emvw = E_MINICARD_VIEW_WIDGET (object);

    switch (arg_id) {
    case ARG_BOOK:
        GTK_VALUE_OBJECT (*arg) = GTK_OBJECT(emvw->book);
        break;
    case ARG_QUERY:
        GTK_VALUE_STRING (*arg) = g_strdup(emvw->query);
        break;
    case ARG_EDITABLE:
        GTK_VALUE_BOOL (*arg) = emvw->editable;
        break;
    default:
        arg->type = GTK_TYPE_INVALID;
        break;
    }
}

static void
e_minicard_view_widget_destroy (GtkObject *object)
{
    EMinicardViewWidget *view = E_MINICARD_VIEW_WIDGET(object);

    if (view->book)
        gtk_object_unref(GTK_OBJECT(view->book));
    g_free(view->query);

    gtk_object_unref (GTK_OBJECT (view->adapter));

    GTK_OBJECT_CLASS(parent_class)->destroy (object);
}

static void
e_minicard_view_widget_realize (GtkWidget *widget)
{
    EMinicardViewWidget *view = E_MINICARD_VIEW_WIDGET(widget);

    view->rect = gnome_canvas_item_new(
        gnome_canvas_root( GNOME_CANVAS(view) ),
        gnome_canvas_rect_get_type(),
        "x1", (double) 0,
        "y1", (double) 0,
        "x2", (double) 100,
        "y2", (double) 100,
        "fill_color", "white",
        NULL );

    view->emv = gnome_canvas_item_new(
        gnome_canvas_root( GNOME_CANVAS(view) ),
        e_minicard_view_get_type(),
        "height", (double) 100,
        "minimum_width", (double) 100,
        NULL );

    gtk_object_set(GTK_OBJECT(view->emv),
               "adapter", view->adapter,
               NULL);

    gtk_signal_connect (GTK_OBJECT (E_REFLOW(view->emv)->selection),
                "selection_changed",
                selection_change, view);

    if (GTK_WIDGET_CLASS(parent_class)->realize)
        GTK_WIDGET_CLASS(parent_class)->realize (widget);
}

static void
e_minicard_view_widget_size_allocate(GtkWidget *widget, GtkAllocation *allocation)
{
    if (GTK_WIDGET_CLASS(parent_class)->size_allocate)
        GTK_WIDGET_CLASS(parent_class)->size_allocate (widget, allocation);
    
    if (GTK_WIDGET_REALIZED(widget)) {
        double width;
        EMinicardViewWidget *view = E_MINICARD_VIEW_WIDGET(widget);

        gnome_canvas_item_set( view->emv,
                       "height", (double) allocation->height,
                       NULL );
        gnome_canvas_item_set( view->emv,
                       "minimum_width", (double) allocation->width,
                       NULL );
        gtk_object_get(GTK_OBJECT(view->emv),
                   "width", &width,
                   NULL);
        width = MAX(width, allocation->width);
        gnome_canvas_set_scroll_region (GNOME_CANVAS (view), 0, 0, width - 1, allocation->height - 1);
        gnome_canvas_item_set( view->rect,
                       "x2", (double) width,
                       "y2", (double) allocation->height,
                       NULL );
    }
}

static void
e_minicard_view_widget_reflow(ECanvas *canvas)
{
    double width;
    EMinicardViewWidget *view = E_MINICARD_VIEW_WIDGET(canvas);

    if (E_CANVAS_CLASS(parent_class)->reflow)
        E_CANVAS_CLASS(parent_class)->reflow (canvas);

    gtk_object_get(GTK_OBJECT(view->emv),
               "width", &width,
               NULL);
    width = MAX(width, GTK_WIDGET(canvas)->allocation.width);
    gnome_canvas_set_scroll_region(GNOME_CANVAS(canvas), 0, 0, width - 1, GTK_WIDGET(canvas)->allocation.height - 1);
    gnome_canvas_item_set( view->rect,
                   "x2", (double) width,
                   "y2", (double) GTK_WIDGET(canvas)->allocation.height,
                   NULL );  
}

static void
selection_change (ESelectionModel *esm, EMinicardViewWidget *widget)
{
    gtk_signal_emit (GTK_OBJECT(widget),
             e_minicard_view_widget_signals [SELECTION_CHANGE], widget);
}

gint
e_minicard_view_widget_selected_count   (EMinicardViewWidget *view)
{
    if (!view->emv)
        return 0;
    else
        return e_selection_model_selected_count (E_REFLOW (view->emv)->selection);
}

void
e_minicard_view_widget_remove_selection(EMinicardViewWidget *view,
                    EBookCallback  cb,
                    gpointer       closure)
{
    if (view->emv)
        e_minicard_view_remove_selection(E_MINICARD_VIEW(view->emv), cb, closure);
}

void       e_minicard_view_widget_jump_to_letter   (EMinicardViewWidget *view,
                            char           letter)
{
    if (view->emv)
        e_minicard_view_jump_to_letter(E_MINICARD_VIEW(view->emv), letter);
}

ESelectionModel *
e_minicard_view_widget_get_selection_model (EMinicardViewWidget *view)
{
    if (view->emv)
        return E_SELECTION_MODEL (E_REFLOW (view->emv)->selection);
    else
        return NULL;
}