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/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
/* 
 * e-minicard.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 <gnome.h>
#include "e-minicard.h"
#include "e-minicard-label.h"
#include "e-text.h"
#include "e-canvas.h"
#include "e-util.h"
static void e_minicard_init     (EMinicard       *card);
static void e_minicard_class_init   (EMinicardClass  *klass);
static void e_minicard_set_arg (GtkObject *o, GtkArg *arg, guint arg_id);
static void e_minicard_get_arg (GtkObject *object, GtkArg *arg, guint arg_id);
static gboolean e_minicard_event (GnomeCanvasItem *item, GdkEvent *event);
static void e_minicard_realize (GnomeCanvasItem *item);
static void e_minicard_unrealize (GnomeCanvasItem *item);

static void _update_card ( EMinicard *minicard );
static void _resize( GtkObject *object, gpointer data );

static GnomeCanvasGroupClass *parent_class = NULL;

enum {
    E_MINICARD_RESIZE,
    E_MINICARD_LAST_SIGNAL
};

static guint e_minicard_signals[E_MINICARD_LAST_SIGNAL] = { 0 };

/* The arguments we take */
enum {
    ARG_0,
    ARG_WIDTH,
    ARG_HEIGHT,
    ARG_HAS_FOCUS,
    ARG_CARD
};

GtkType
e_minicard_get_type (void)
{
  static GtkType minicard_type = 0;

  if (!minicard_type)
    {
      static const GtkTypeInfo minicard_info =
      {
        "EMinicard",
        sizeof (EMinicard),
        sizeof (EMinicardClass),
        (GtkClassInitFunc) e_minicard_class_init,
        (GtkObjectInitFunc) e_minicard_init,
        /* reserved_1 */ NULL,
        /* reserved_2 */ NULL,
        (GtkClassInitFunc) NULL,
      };

      minicard_type = gtk_type_unique (gnome_canvas_group_get_type (), &minicard_info);
    }

  return minicard_type;
}

static void
e_minicard_class_init (EMinicardClass *klass)
{
  GtkObjectClass *object_class;
  GnomeCanvasItemClass *item_class;

  object_class = (GtkObjectClass*) klass;
  item_class = (GnomeCanvasItemClass *) klass;

  parent_class = gtk_type_class (gnome_canvas_group_get_type ());
  
  e_minicard_signals[E_MINICARD_RESIZE] =
      gtk_signal_new ("resize",
              GTK_RUN_LAST,
              object_class->type,
              GTK_SIGNAL_OFFSET (EMinicardClass, resize),
              gtk_marshal_NONE__NONE,
              GTK_TYPE_NONE, 0);
  
  
  gtk_object_class_add_signals (object_class, e_minicard_signals, E_MINICARD_LAST_SIGNAL);
  
  gtk_object_add_arg_type ("EMinicard::width", GTK_TYPE_DOUBLE, 
               GTK_ARG_READWRITE, ARG_WIDTH); 
  gtk_object_add_arg_type ("EMinicard::height", GTK_TYPE_DOUBLE, 
               GTK_ARG_READABLE, ARG_HEIGHT);
  gtk_object_add_arg_type ("EMinicard::has_focus", GTK_TYPE_ENUM,
               GTK_ARG_READWRITE, ARG_HAS_FOCUS);
  gtk_object_add_arg_type ("EMinicard::card", GTK_TYPE_OBJECT, 
               GTK_ARG_READWRITE, ARG_CARD);
 
  object_class->set_arg = e_minicard_set_arg;
  object_class->get_arg = e_minicard_get_arg;
  /*  object_class->destroy = e_minicard_destroy; */
  
  /* GnomeCanvasItem method overrides */
  item_class->realize     = e_minicard_realize;
  item_class->unrealize   = e_minicard_unrealize;
  item_class->event       = e_minicard_event;
}

static void
e_minicard_init (EMinicard *minicard)
{
  /*   minicard->card = NULL;*/
  minicard->rect = NULL;
  minicard->fields = NULL;
  minicard->width = 10;
  minicard->height = 10;
  minicard->has_focus = FALSE;
}

static void
e_minicard_set_arg (GtkObject *o, GtkArg *arg, guint arg_id)
{
    GnomeCanvasItem *item;
    EMinicard *e_minicard;

    item = GNOME_CANVAS_ITEM (o);
    e_minicard = E_MINICARD (o);
    
    switch (arg_id){
    case ARG_WIDTH:
        if (e_minicard->width != GTK_VALUE_DOUBLE (*arg)) {
            e_minicard->width = GTK_VALUE_DOUBLE (*arg);
            _update_card(e_minicard);
            gnome_canvas_item_request_update (item);
        }
      break;
    case ARG_HAS_FOCUS:
        if (e_minicard->fields) {
            if ( GTK_VALUE_ENUM(*arg) == E_FOCUS_START ||
                 GTK_VALUE_ENUM(*arg) == E_FOCUS_CURRENT) {
                gnome_canvas_item_set(GNOME_CANVAS_ITEM(e_minicard->fields->data),
                              "has_focus", GTK_VALUE_ENUM(*arg),
                              NULL);
            } else if ( GTK_VALUE_ENUM(*arg) == E_FOCUS_END ) {
                gnome_canvas_item_set(GNOME_CANVAS_ITEM(g_list_last(e_minicard->fields)->data),
                              "has_focus", GTK_VALUE_ENUM(*arg),
                              NULL);
            }
        }
        else
            e_canvas_item_grab_focus(GNOME_CANVAS_ITEM(e_minicard));
        break;
    case ARG_CARD:
      /*      e_minicard->card = GTK_VALUE_POINTER (*arg);
      _update_card(e_minicard);
      gnome_canvas_item_request_update (item);*/
      break;
    }
}

static void
e_minicard_get_arg (GtkObject *object, GtkArg *arg, guint arg_id)
{
    EMinicard *e_minicard;

    e_minicard = E_MINICARD (object);

    switch (arg_id) {
    case ARG_WIDTH:
      GTK_VALUE_DOUBLE (*arg) = e_minicard->width;
      break;
    case ARG_HEIGHT:
      GTK_VALUE_DOUBLE (*arg) = e_minicard->height;
      break;
    case ARG_HAS_FOCUS:
        GTK_VALUE_ENUM (*arg) = e_minicard->has_focus ? E_FOCUS_CURRENT : E_FOCUS_NONE;
        break;
    case ARG_CARD:
      /* GTK_VALUE_POINTER (*arg) = e_minicard->card; */
      break;
    default:
      arg->type = GTK_TYPE_INVALID;
      break;
    }
}

static void
e_minicard_realize (GnomeCanvasItem *item)
{
    EMinicard *e_minicard;
    GnomeCanvasGroup *group;
    GnomeCanvasItem *new_item;

    e_minicard = E_MINICARD (item);
    group = GNOME_CANVAS_GROUP( item );

    if (GNOME_CANVAS_ITEM_CLASS(parent_class)->realize)
        (* GNOME_CANVAS_ITEM_CLASS(parent_class)->realize) (item);
    
    e_minicard->rect =
      gnome_canvas_item_new( group,
                 gnome_canvas_rect_get_type(),
                 "x1", (double) 0,
                 "y1", (double) 0,
                 "x2", (double) e_minicard->width - 1,
                 "y2", (double) e_minicard->height - 1,
                 "outline_color", NULL,
                 NULL );

    e_minicard->header_rect =
      gnome_canvas_item_new( group,
                 gnome_canvas_rect_get_type(),
                 "x1", (double) 2,
                 "y1", (double) 2,
                 "x2", (double) e_minicard->width - 3,
                 "y2", (double) e_minicard->height - 3,
                 "fill_color", "grey70",
                 NULL );

    e_minicard->header_text =
      gnome_canvas_item_new( group,
                 e_text_get_type(),
                 "x", (double) 6,
                 "y", (double) 6,
                 "anchor", GTK_ANCHOR_NW,
                 "clip_width", (double) ( e_minicard->width - 12 ),
                 "clip", TRUE,
                 "use_ellipsis", TRUE,
                 "font", "lucidasans-bold-10",
                 "fill_color", "black",
                 "text", "Chris Lahey",
                 NULL );
    
    gtk_signal_connect(GTK_OBJECT(e_minicard->header_text),
               "resize",
               GTK_SIGNAL_FUNC(_resize),
               (gpointer) e_minicard);
    if ( rand() % 2 ) {
        new_item = gnome_canvas_item_new( group,
                          e_minicard_label_get_type(),
                          "x", (double) 2,
                          "y", e_minicard->height,
                          "width", e_minicard->width - 4,
                          "fieldname", "Full Name:",
                          "field", "Christopher James Lahey",
                          NULL );
        e_minicard->fields = g_list_append( e_minicard->fields, new_item);
        
        gtk_signal_connect(GTK_OBJECT(new_item),
                   "resize",
                   GTK_SIGNAL_FUNC(_resize),
                   (gpointer) e_minicard);
    }
    
    if (rand() % 2) {
        new_item = gnome_canvas_item_new( group,
                          e_minicard_label_get_type(),
                          "x", (double) 2,
                          "y", e_minicard->height,
                          "width", e_minicard->width - 4,
                          "fieldname", "Address:",
                          "field", "100 Main St\nHome town, USA",
                          NULL );
        e_minicard->fields = g_list_append( e_minicard->fields, new_item);
        
        gtk_signal_connect(GTK_OBJECT(new_item),
                   "resize",
                   GTK_SIGNAL_FUNC(_resize),
                   (gpointer) e_minicard);
    }
       
    if (rand() % 2) {
        new_item = gnome_canvas_item_new( group,
                          e_minicard_label_get_type(),
                          "x", (double) 2,
                          "y", e_minicard->height,
                          "width", e_minicard->width - 4.0,
                          "fieldname", "Email:",
                          "field", "clahey@address.com",
                          NULL );
        e_minicard->fields = g_list_append( e_minicard->fields, new_item);
        
        gtk_signal_connect(GTK_OBJECT(new_item),
                   "resize",
                   GTK_SIGNAL_FUNC(_resize),
                   (gpointer) e_minicard);
    }
    _update_card( e_minicard );
    
    if (!item->canvas->aa) {
    }
}

static void
e_minicard_unrealize (GnomeCanvasItem *item)
{
  EMinicard *e_minicard;

  e_minicard = E_MINICARD (item);

  if (!item->canvas->aa)
    {
    }

  if (GNOME_CANVAS_ITEM_CLASS(parent_class)->unrealize)
    (* GNOME_CANVAS_ITEM_CLASS(parent_class)->unrealize) (item);
}

static gboolean
e_minicard_event (GnomeCanvasItem *item, GdkEvent *event)
{
  EMinicard *e_minicard;
 
  e_minicard = E_MINICARD (item);

  switch( event->type )
    {
    case GDK_FOCUS_CHANGE:
      {
    GdkEventFocus *focus_event = (GdkEventFocus *) event;
    if ( focus_event->in )
      {
        gnome_canvas_item_set( e_minicard->rect, 
                   "outline_color", "grey50", 
                   NULL );
        gnome_canvas_item_set( e_minicard->header_rect, 
                   "fill_color", "darkblue",
                   NULL );
        gnome_canvas_item_set( e_minicard->header_text, 
                   "fill_color", "white",
                   NULL );
        e_minicard->has_focus = TRUE;
      }
    else
      {
        gnome_canvas_item_set( e_minicard->rect, 
                   "outline_color", NULL, 
                   NULL );
        gnome_canvas_item_set( e_minicard->header_rect, 
                   "fill_color", "grey70",
                   NULL );
        gnome_canvas_item_set( e_minicard->header_text, 
                   "fill_color", "black",
                   NULL );
        e_minicard->has_focus = FALSE;
      }
      }
      break;
    case GDK_BUTTON_PRESS:
        if (event->button.button == 1) {
            e_canvas_item_grab_focus(item);
        }
        break;
    case GDK_KEY_PRESS:
        if (event->key.keyval == GDK_Tab || 
        event->key.keyval == GDK_KP_Tab || 
        event->key.keyval == GDK_ISO_Left_Tab) {
            GList *list;
            for (list = e_minicard->fields; list; list = list->next) {
                GnomeCanvasItem *item = GNOME_CANVAS_ITEM (list->data);
                EFocus has_focus;
                gtk_object_get(GTK_OBJECT(item),
                       "has_focus", &has_focus,
                       NULL);
                if (has_focus != E_FOCUS_NONE) {
                    if (event->key.state & GDK_SHIFT_MASK)
                        list = list->prev;
                    else
                        list = list->next;
                    if (list) {
                        item = GNOME_CANVAS_ITEM (list->data);
                        gnome_canvas_item_set(item,
                                  "has_focus", (event->key.state & GDK_SHIFT_MASK) ? E_FOCUS_END : E_FOCUS_START,
                                  NULL);
                        return 1;
                    } else {
                        return 0;
                    }
                }
            }
        }
    default:
      break;
    }
  
  if (GNOME_CANVAS_ITEM_CLASS( parent_class )->event)
      return (* GNOME_CANVAS_ITEM_CLASS( parent_class )->event) (item, event);
  else
      return 0;
}

static void
_update_card( EMinicard *e_minicard )
{
    if ( GTK_OBJECT_FLAGS( e_minicard ) & GNOME_CANVAS_ITEM_REALIZED ) {
        GList *list;
        gdouble text_height;
        gint old_height;

        old_height = e_minicard->height;

        gtk_object_get( GTK_OBJECT( e_minicard->header_text ),
                "text_height", &text_height,
                NULL );
        
        e_minicard->height = text_height + 10.0;
        
        gnome_canvas_item_set( e_minicard->header_rect,
                       "y2", text_height + 9.0,
                       NULL );
        
        gnome_canvas_item_set( e_minicard->header_text,
                       "clip_height", (double)text_height,
                       NULL );
        
        for(list = e_minicard->fields; list; list = g_list_next(list)) {
            gtk_object_get (GTK_OBJECT(list->data),
                    "height", &text_height,
                    NULL);
            gnome_canvas_item_set(GNOME_CANVAS_ITEM(list->data),
                          "y", (double) e_minicard->height,
                          NULL);
            e_minicard->height += text_height;
        }
        e_minicard->height += 2;
        
        gnome_canvas_item_set( e_minicard->rect,
                       "y2", (double) e_minicard->height - 1,
                       NULL );
        
        gnome_canvas_item_set( e_minicard->rect,
                       "x2", (double) e_minicard->width - 1.0,
                       "y2", (double) e_minicard->height - 1.0,
                       NULL );
        gnome_canvas_item_set( e_minicard->header_rect,
                       "x2", (double) e_minicard->width - 3.0,
                       NULL );
        gnome_canvas_item_set( e_minicard->header_text,
                       "clip_width", (double) e_minicard->width - 12,
                       NULL );
        for ( list = e_minicard->fields; list; list = g_list_next( list ) ) {
            gnome_canvas_item_set( GNOME_CANVAS_ITEM( list->data ),
                           "width", (double) e_minicard->width - 4.0,
                           NULL );

        if (old_height != e_minicard->height)
            gtk_signal_emit_by_name (GTK_OBJECT (e_minicard), "resize");
      }
    }
}

static void
_resize( GtkObject *object, gpointer data )
{
    _update_card(E_MINICARD(data));
}