path: root/addressbook/gui/widgets/e-minicard-label.c

/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
/* 
 * e-minicard-label.c
 * Copyright (C) 2000  Ximian, Inc.
 * Author: Chris Lahey <clahey@ximian.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/util/e-util.h>
#include <gal/e-text/e-text.h>
#include <gal/widgets/e-canvas.h>
#include <gal/widgets/e-canvas-utils.h>
#include "e-minicard-label.h"

static void e_minicard_label_init       (EMinicardLabel      *card);
static void e_minicard_label_class_init (EMinicardLabelClass     *klass);
static void e_minicard_label_set_arg (GtkObject *o, GtkArg *arg, guint arg_id);
static void e_minicard_label_get_arg (GtkObject *object, GtkArg *arg, guint arg_id);
static gboolean e_minicard_label_event (GnomeCanvasItem *item, GdkEvent *event);
static void e_minicard_label_realize (GnomeCanvasItem *item);
static void e_minicard_label_unrealize (GnomeCanvasItem *item);
static void e_minicard_label_reflow(GnomeCanvasItem *item, int flags);

static void e_minicard_label_resize_children( EMinicardLabel *e_minicard_label );

static GnomeCanvasGroupClass *parent_class = NULL;

/* The arguments we take */
enum {
    ARG_0,
    ARG_WIDTH,
    ARG_HEIGHT,
    ARG_HAS_FOCUS,
    ARG_FIELD,
    ARG_FIELDNAME,
    ARG_TEXT_MODEL,
    ARG_MAX_FIELD_NAME_WIDTH,
    ARG_EDITABLE
};

GtkType
e_minicard_label_get_type (void)
{
  static GtkType minicard_label_type = 0;

  if (!minicard_label_type)
    {
      static const GtkTypeInfo minicard_label_info =
      {
        "EMinicardLabel",
        sizeof (EMinicardLabel),
        sizeof (EMinicardLabelClass),
        (GtkClassInitFunc) e_minicard_label_class_init,
        (GtkObjectInitFunc) e_minicard_label_init,
        /* reserved_1 */ NULL,
        /* reserved_2 */ NULL,
        (GtkClassInitFunc) NULL,
      };

      minicard_label_type = gtk_type_unique (gnome_canvas_group_get_type (), &minicard_label_info);
    }

  return minicard_label_type;
}

static void
e_minicard_label_class_init (EMinicardLabelClass *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 ());
  
  gtk_object_add_arg_type ("EMinicardLabel::width", GTK_TYPE_DOUBLE, 
               GTK_ARG_READWRITE, ARG_WIDTH); 
  gtk_object_add_arg_type ("EMinicardLabel::height", GTK_TYPE_DOUBLE, 
               GTK_ARG_READABLE, ARG_HEIGHT);
  gtk_object_add_arg_type ("EMinicardLabel::has_focus", GTK_TYPE_BOOL, 
               GTK_ARG_READWRITE, ARG_HAS_FOCUS);
  gtk_object_add_arg_type ("EMinicardLabel::field", GTK_TYPE_STRING, 
               GTK_ARG_READWRITE, ARG_FIELD);
  gtk_object_add_arg_type ("EMinicardLabel::fieldname", GTK_TYPE_STRING, 
               GTK_ARG_READWRITE, ARG_FIELDNAME);
  gtk_object_add_arg_type ("EMinicardLabel::text_model", GTK_TYPE_OBJECT,
               GTK_ARG_READWRITE, ARG_TEXT_MODEL);
  gtk_object_add_arg_type ("EMinicardLabel::max_field_name_length", GTK_TYPE_DOUBLE,
               GTK_ARG_READWRITE, ARG_MAX_FIELD_NAME_WIDTH);
  gtk_object_add_arg_type ("EMinicardLabel::editable", GTK_TYPE_BOOL, 
               GTK_ARG_READWRITE, ARG_EDITABLE);
 
  object_class->set_arg = e_minicard_label_set_arg;
  object_class->get_arg = e_minicard_label_get_arg;
  /*  object_class->destroy = e_minicard_label_destroy; */
  
  /* GnomeCanvasItem method overrides */
  item_class->realize     = e_minicard_label_realize;
  item_class->unrealize   = e_minicard_label_unrealize;
  item_class->event       = e_minicard_label_event;
}

static void
e_minicard_label_init (EMinicardLabel *minicard_label)
{
  minicard_label->width = 10;
  minicard_label->height = 10;
  minicard_label->rect = NULL;
  minicard_label->fieldname = NULL;
  minicard_label->field = NULL;

  minicard_label->max_field_name_length = -1;

  e_canvas_item_set_reflow_callback(GNOME_CANVAS_ITEM(minicard_label), e_minicard_label_reflow);
}

static void
e_minicard_label_set_arg (GtkObject *o, GtkArg *arg, guint arg_id)
{
    GnomeCanvasItem *item;
    EMinicardLabel *e_minicard_label;

    item = GNOME_CANVAS_ITEM (o);
    e_minicard_label = E_MINICARD_LABEL (o);
    
    switch (arg_id){
    case ARG_WIDTH:
        e_minicard_label->width = GTK_VALUE_DOUBLE (*arg);
        e_minicard_label_resize_children(e_minicard_label);
        e_canvas_item_request_reflow (item);
        break;
    case ARG_HAS_FOCUS:
        if (e_minicard_label->field && (GTK_VALUE_ENUM(*arg) != E_FOCUS_NONE))
            e_canvas_item_grab_focus(e_minicard_label->field, FALSE);
        break;
    case ARG_FIELD:
        gnome_canvas_item_set( e_minicard_label->field, "text", GTK_VALUE_STRING (*arg), NULL );
        break;
    case ARG_FIELDNAME:
        gnome_canvas_item_set( e_minicard_label->fieldname, "text", GTK_VALUE_STRING (*arg), NULL );
        break;
    case ARG_TEXT_MODEL:
        gnome_canvas_item_set( e_minicard_label->field, "model", GTK_VALUE_OBJECT (*arg), NULL);
        break;
    case ARG_MAX_FIELD_NAME_WIDTH:
        e_minicard_label->max_field_name_length = GTK_VALUE_DOUBLE (*arg);
        break;
    case ARG_EDITABLE:
        e_minicard_label->editable = GTK_VALUE_BOOL (*arg);
        gtk_object_set (GTK_OBJECT (e_minicard_label->field), "editable", e_minicard_label->editable, NULL);
        break;
    }
}

static void
e_minicard_label_get_arg (GtkObject *object, GtkArg *arg, guint arg_id)
{
    EMinicardLabel *e_minicard_label;
    char *temp;
    ETextModel *tempmodel;

    e_minicard_label = E_MINICARD_LABEL (object);

    switch (arg_id) {
    case ARG_WIDTH:
        GTK_VALUE_DOUBLE (*arg) = e_minicard_label->width;
        break;
    case ARG_HEIGHT:
        GTK_VALUE_DOUBLE (*arg) = e_minicard_label->height;
        break;
    case ARG_HAS_FOCUS:
        GTK_VALUE_ENUM (*arg) = e_minicard_label->has_focus ? E_FOCUS_CURRENT : E_FOCUS_NONE;
        break;
    case ARG_FIELD:
        gtk_object_get( GTK_OBJECT( e_minicard_label->field ), "text", &temp, NULL );
        GTK_VALUE_STRING (*arg) = temp;
        break;
    case ARG_FIELDNAME:
        gtk_object_get( GTK_OBJECT( e_minicard_label->fieldname ), "text", &temp, NULL );
        GTK_VALUE_STRING (*arg) = temp;
        break;
    case ARG_TEXT_MODEL:
        gtk_object_get( GTK_OBJECT( e_minicard_label->field ), "model", &tempmodel, NULL );
        GTK_VALUE_OBJECT (*arg) = GTK_OBJECT(tempmodel);
        break;
    case ARG_MAX_FIELD_NAME_WIDTH:
        GTK_VALUE_DOUBLE (*arg) = e_minicard_label->max_field_name_length;
        break;
    case ARG_EDITABLE:
        GTK_VALUE_BOOL (*arg) = e_minicard_label->editable;
        break;
    default:
        arg->type = GTK_TYPE_INVALID;
        break;
    }
}

static void
e_minicard_label_realize (GnomeCanvasItem *item)
{
    if (GNOME_CANVAS_ITEM_CLASS( parent_class )->realize)
      (* GNOME_CANVAS_ITEM_CLASS( parent_class )->realize) (item);

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

void
e_minicard_label_construct (GnomeCanvasItem *item)
{
    EMinicardLabel *e_minicard_label;
    GnomeCanvasGroup *group;
    GdkFont *font;

    font = ((GtkWidget *) item->canvas)->style->font;

    e_minicard_label = E_MINICARD_LABEL (item);
    group = GNOME_CANVAS_GROUP( item );

    e_minicard_label->rect =
      gnome_canvas_item_new( group,
                 gnome_canvas_rect_get_type(),
                 "x1", (double) 0,
                 "y1", (double) 0,
                 "x2", (double) e_minicard_label->width - 1,
                 "y2", (double) e_minicard_label->height - 1,
                 "outline_color", NULL,
                 NULL );
    e_minicard_label->fieldname =
      gnome_canvas_item_new( group,
                 e_text_get_type(),
                 "anchor", GTK_ANCHOR_NW,
                 "clip_width", (double) ( e_minicard_label->width / 2 - 4 ),
                 "clip", TRUE,
                 "use_ellipsis", TRUE,
                 "font_gdk", font,
                 "fill_color", "black",
                 "draw_background", FALSE,
                 NULL );
    e_canvas_item_move_absolute(e_minicard_label->fieldname, 2, 1);

    e_minicard_label->field =
      gnome_canvas_item_new( group,
                 e_text_get_type(),
                 "anchor", GTK_ANCHOR_NW,
                 "clip_width", (double) ( ( e_minicard_label->width + 1 ) / 2 - 4 ),
                 "clip", TRUE,
                 "use_ellipsis", TRUE,
                 "font_gdk", font,
                 "fill_color", "black",
                 "editable", e_minicard_label->editable,
                 "draw_background", FALSE,
                 NULL );
    e_canvas_item_move_absolute(e_minicard_label->field, ( e_minicard_label->width / 2 + 2), 1);

    e_canvas_item_request_reflow(item);
}

static void
e_minicard_label_unrealize (GnomeCanvasItem *item)
{
  EMinicardLabel *e_minicard_label;

  e_minicard_label = E_MINICARD_LABEL (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_label_event (GnomeCanvasItem *item, GdkEvent *event)
{
  EMinicardLabel *e_minicard_label;
 
  e_minicard_label = E_MINICARD_LABEL (item);

  switch( event->type )
    {
    case GDK_FOCUS_CHANGE:
      {
    GdkEventFocus *focus_event = (GdkEventFocus *) event;
    if ( focus_event->in )
      {
        gnome_canvas_item_set( e_minicard_label->rect, 
                   "outline_color", "grey50", 
                   "fill_color", "grey90",
                   NULL );
        e_minicard_label->has_focus = TRUE;
      }
    else
      {
        gnome_canvas_item_set( e_minicard_label->rect, 
                   "outline_color", NULL, 
                   "fill_color", NULL,
                   NULL );
        e_minicard_label->has_focus = FALSE;
      }
      }
      break;
    case GDK_BUTTON_PRESS:
    case GDK_BUTTON_RELEASE: 
    case GDK_MOTION_NOTIFY:
    case GDK_ENTER_NOTIFY:
    case GDK_LEAVE_NOTIFY: {
        gboolean return_val;
#if 0
        GnomeCanvasItem *field;
        ArtPoint p;
        double inv[6], affine[6];
        
        field = e_minicard_label->field;
        art_affine_identity (affine);
        
        if (field->xform != NULL) {
            if (field->object.flags & GNOME_CANVAS_ITEM_AFFINE_FULL) {
                art_affine_multiply (affine, affine, field->xform);
            } else {
                affine[4] += field->xform[0];
                affine[5] += field->xform[1];
            }
        }
        
        art_affine_invert (inv, affine);
        switch(event->type) {
        case GDK_MOTION_NOTIFY:
            p.x = event->motion.x;
            p.y = event->motion.y;
            art_affine_point (&p, &p, inv);
            event->motion.x = p.x;
            event->motion.y = p.y;
            break;
        case GDK_BUTTON_PRESS:
        case GDK_BUTTON_RELEASE:
            p.x = event->button.x;
            p.y = event->button.y;
            art_affine_point (&p, &p, inv);
            event->button.x = p.x;
            event->button.y = p.y;
            break;
        case GDK_ENTER_NOTIFY:
        case GDK_LEAVE_NOTIFY:
            p.x = event->crossing.x;
            p.y = event->crossing.y;
            art_affine_point (&p, &p, inv);
            event->crossing.x = p.x;
            event->crossing.y = p.y;
            break;
        default:
            break;
        }
#endif      
        gtk_signal_emit_by_name(GTK_OBJECT(e_minicard_label->field), "event", event, &return_val);
        return return_val;
        break;
    }
    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
e_minicard_label_resize_children(EMinicardLabel *e_minicard_label)
{
    double left_width;
    if (e_minicard_label->max_field_name_length != -1 && ((e_minicard_label->width / 2) - 4 > e_minicard_label->max_field_name_length))
        left_width = e_minicard_label->max_field_name_length;
    else
        left_width = e_minicard_label->width / 2 - 4;

    gnome_canvas_item_set( e_minicard_label->fieldname,
                   "clip_width", (double) ( left_width ),
                   NULL );
    gnome_canvas_item_set( e_minicard_label->field,
                   "clip_width", (double) ( e_minicard_label->width - 8 - left_width ),
                   NULL );
}

static void
e_minicard_label_reflow(GnomeCanvasItem *item, int flags)
{
    EMinicardLabel *e_minicard_label = E_MINICARD_LABEL(item);
    
    gint old_height;
    gdouble text_height;
    gdouble left_width;

    old_height = e_minicard_label->height;

    gtk_object_get(GTK_OBJECT(e_minicard_label->fieldname), 
               "text_height", &text_height,
               NULL);

    e_minicard_label->height = text_height;


    gtk_object_get(GTK_OBJECT(e_minicard_label->field), 
               "text_height", &text_height,
               NULL);

    if (e_minicard_label->height < text_height)
        e_minicard_label->height = text_height;
    e_minicard_label->height += 3;

    gnome_canvas_item_set( e_minicard_label->rect,
                   "x2", (double) e_minicard_label->width - 1,
                   "y2", (double) e_minicard_label->height - 1,
                   NULL );

    if (e_minicard_label->max_field_name_length != -1 && ((e_minicard_label->width / 2) - 4 > e_minicard_label->max_field_name_length))
        left_width = e_minicard_label->max_field_name_length;
    else
        left_width = e_minicard_label->width / 2 - 4;

    e_canvas_item_move_absolute(e_minicard_label->field, left_width + 6, 1);

    if (old_height != e_minicard_label->height)
        e_canvas_item_request_parent_reflow(item);
}

GnomeCanvasItem *
e_minicard_label_new(GnomeCanvasGroup *parent)
{
    GnomeCanvasItem *item = gnome_canvas_item_new(parent, e_minicard_label_get_type(), NULL);
    e_minicard_label_construct(item);
    return item;
}