/* -*- Mode: C; indent-tabs-mode: t; c-basic-offset: 8; tab-width: 8 -*- */
/* e-summary-title-buttons.c
*
* Authors: Iain Holmes <iain@helixcode.com>
*
* Copyright (C) 2000 Helix Code, Inc.
*
* This program 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 program; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <libgnomeui/gnome-canvas-rect-ellipse.h>
#include <gal/util/e-util.h>
#include <gdk-pixbuf/gdk-pixbuf.h>
#include "e-summary-title-button.h"
#define PARENT_TYPE (gnome_canvas_rect_get_type ())
enum {
ARG_0,
ARG_PIXBUF,
ARG_X,
ARG_Y
};
enum {
CLICKED,
LAST_SIGNAL
};
static void e_summary_title_button_destroy (GtkObject *object);
static void e_summary_title_button_set_arg (GtkObject *object,
GtkArg *arg,
guint arg_id);
static void e_summary_title_button_get_arg (GtkObject *object,
GtkArg *arg,
guint arg_id);
static void e_summary_title_button_class_init (ESummaryTitleButtonClass *estb_class);
static void e_summary_title_button_init (ESummaryTitleButton *estb);
static double e_summary_title_button_point (GnomeCanvasItem *item,
double x,
double y,
int cx,
int cy,
GnomeCanvasItem **actual_item);
static void e_summary_title_button_update (GnomeCanvasItem *item,
double affine[6],
ArtSVP *clip_path,
gint flags);
static void e_summary_title_button_draw (GnomeCanvasItem *item,
GdkDrawable *drawable,
int x, int y,
int width, int height);
static gint e_summary_title_button_event (GnomeCanvasItem *item,
GdkEvent *event);
static GnomeCanvasRectClass *parent_class;
static guint estb_signals[LAST_SIGNAL] = { 0 };
struct _ESummaryTitleButtonPrivate {
GdkPixbuf *pixbuf;
double x, y;
int width, height;
int in_button : 1;
int button_down : 1;
};
static void
e_summary_title_button_destroy (GtkObject *object)
{
ESummaryTitleButton *estb;
ESummaryTitleButtonPrivate *priv;
estb = E_SUMMARY_TITLE_BUTTON (object);
priv = estb->private;
if (priv == NULL)
return;
gdk_pixbuf_unref (priv->pixbuf);
g_free (priv);
estb->private = NULL;
if (GTK_OBJECT_CLASS (parent_class)->destroy)
(* GTK_OBJECT_CLASS (parent_class)->destroy) (object);
}
static void
e_summary_title_button_set_arg (GtkObject *object,
GtkArg *arg,
guint arg_id)
{
ESummaryTitleButton *estb;
ESummaryTitleButtonPrivate *priv;
gboolean update = FALSE;
estb = E_SUMMARY_TITLE_BUTTON (object);
priv = estb->private;
switch (arg_id) {
case ARG_PIXBUF:
if (priv->pixbuf)
gdk_pixbuf_unref (priv->pixbuf);
priv->pixbuf = GTK_VALUE_POINTER (*arg);
gdk_pixbuf_ref (priv->pixbuf);
priv->width = gdk_pixbuf_get_width (priv->pixbuf);
priv->height = gdk_pixbuf_get_height (priv->pixbuf);
update = TRUE;
break;
case ARG_X:
priv->x = GTK_VALUE_DOUBLE (*arg);
break;
case ARG_Y:
priv->y = GTK_VALUE_DOUBLE (*arg);
break;
default:
break;
}
if (update)
gnome_canvas_item_request_update (GNOME_CANVAS_ITEM (estb));
}
static void
e_summary_title_button_get_arg (GtkObject *object,
GtkArg *arg,
guint arg_id)
{
ESummaryTitleButton *estb;
ESummaryTitleButtonPrivate *priv;
estb = E_SUMMARY_TITLE_BUTTON (object);
priv = estb->private;
switch (arg_id) {
case ARG_PIXBUF:
GTK_VALUE_POINTER (*arg) = priv->pixbuf;
break;
case ARG_X:
GTK_VALUE_DOUBLE (*arg) = priv->x;
break;
case ARG_Y:
GTK_VALUE_DOUBLE (*arg) = priv->y;
break;
default:
arg->type = GTK_TYPE_INVALID;
break;
}
}
static void
e_summary_title_button_init (ESummaryTitleButton *estb)
{
estb->private = g_new0 (ESummaryTitleButtonPrivate, 1);
}
static void
e_summary_title_button_class_init (ESummaryTitleButtonClass *estb_class)
{
GtkObjectClass *object_class;
GnomeCanvasItemClass *item_class;
object_class = (GtkObjectClass *) estb_class;
item_class = (GnomeCanvasItemClass *) estb_class;
object_class->destroy = e_summary_title_button_destroy;
object_class->set_arg = e_summary_title_button_set_arg;
object_class->get_arg = e_summary_title_button_get_arg;
item_class->draw = e_summary_title_button_draw;
item_class->point = e_summary_title_button_point;
item_class->update = e_summary_title_button_update;
item_class->event = e_summary_title_button_event;
gtk_object_add_arg_type ("ESummaryTitleButton::pixbuf",
GTK_TYPE_POINTER,
GTK_ARG_READWRITE,
ARG_PIXBUF);
gtk_object_add_arg_type ("ESummaryTitleButton::x",
GTK_TYPE_DOUBLE,
GTK_ARG_READWRITE,
ARG_X);
gtk_object_add_arg_type ("ESummaryTitleButton::y",
GTK_TYPE_DOUBLE,
GTK_ARG_READWRITE,
ARG_Y);
estb_signals[CLICKED] = gtk_signal_new ("clicked", GTK_RUN_LAST,
object_class->type,
GTK_SIGNAL_OFFSET (ESummaryTitleButtonClass,
clicked),
gtk_marshal_NONE__NONE,
GTK_TYPE_NONE, 0);
gtk_object_class_add_signals (object_class, estb_signals, LAST_SIGNAL);
parent_class = gtk_type_class (PARENT_TYPE);
}
E_MAKE_TYPE (e_summary_title_button, "ESummaryTitleButton",
ESummaryTitleButton, e_summary_title_button_class_init,
e_summary_title_button_init, PARENT_TYPE);
static double
e_summary_title_button_point (GnomeCanvasItem *item,
double x,
double y,
int cx,
int cy,
GnomeCanvasItem **actual_item)
{
ESummaryTitleButton *estb;
ESummaryTitleButtonPrivate *priv;
double d = 1.0;
estb = E_SUMMARY_TITLE_BUTTON (item);
priv = estb->private;
if (x >= priv->x && x <= priv->x + gdk_pixbuf_get_width (priv->pixbuf)
&& y >= priv->y && y <= priv->y + gdk_pixbuf_get_height (priv->pixbuf)) {
d = 0.0;
*actual_item = item;
}
return d;
}
static void
get_bounds (ESummaryTitleButton *estb,
double *px1, double *py1,
double *px2, double *py2)
{
GnomeCanvasItem *item;
ESummaryTitleButtonPrivate *priv;
double x1, y1, x2, y2;
int cx1, cy1, cx2, cy2;
item = GNOME_CANVAS_ITEM (estb);
priv = estb->private;
x1 = priv->x;
y1 = priv->y;
x2 = x1 + priv->width;
y2 = y1 + priv->height;
gnome_canvas_item_i2w (item, &x1, &y1);
gnome_canvas_item_i2w (item, &x2, &x2);
gnome_canvas_w2c (item->canvas, x1, y1, &cx1, &cy1);
gnome_canvas_w2c (item->canvas, x2, y2, &cx2, &cy2);
*px1 = cx1;
*py1 = cy1;
*px2 = cx2;
*py2 = cy2;
}
static void
e_summary_title_button_update (GnomeCanvasItem *item,
double affine[6],
ArtSVP *clip_path,
gint flags)
{
ESummaryTitleButton *estb;
ESummaryTitleButtonPrivate *priv;
double x1, y1, x2, y2;
estb = E_SUMMARY_TITLE_BUTTON (item);
priv = estb->private;
get_bounds (estb, &x1, &y1, &x2, &y2);
gnome_canvas_update_bbox (item, (int) x1, (int) y1, (int) x2, (int) y2);
}
static void
e_summary_title_button_draw (GnomeCanvasItem *item,
GdkDrawable *drawable,
int x, int y,
int width, int height)
{
ESummaryTitleButton *estb;
ESummaryTitleButtonPrivate *priv;
double i2w[6], w2c[6], i2c[6];
int x1, x2, y1, y2;
ArtPoint i1, i2;
ArtPoint c1, c2;
GdkGC *gc;
estb = E_SUMMARY_TITLE_BUTTON (item);
priv = estb->private;
if (GNOME_CANVAS_ITEM_CLASS (parent_class)->draw)
(* GNOME_CANVAS_ITEM_CLASS (parent_class)->draw) (item, drawable, x, y, width, height);
gnome_canvas_item_i2w_affine (item, i2w);
gnome_canvas_w2c_affine (item->canvas, w2c);
art_affine_multiply (i2c, i2w, w2c);
i1.x = priv->x;
i1.y = priv->y;
i2.x = i1.x + priv->width + 4;
i2.y = i1.y + priv->height + 4;
art_affine_point (&c1, &i1, i2c);
art_affine_point (&c2, &i2, i2c);
x1 = c1.x;
y1 = c1.y;
x2 = c2.x;
y2 = c2.y;
gc = gdk_gc_new (item->canvas->layout.bin_window);
gdk_draw_rectangle (drawable, gc,
FALSE, x1 - x,
y1 - y,
x2 - x1,
y2 - y1);
gdk_gc_unref (gc);
gdk_pixbuf_render_to_drawable_alpha (priv->pixbuf,
drawable,
0, 0,
x1 + 2, y1 + 2,
priv->width, priv->height,
GDK_PIXBUF_ALPHA_BILEVEL,
127,
GDK_RGB_DITHER_NORMAL,
0, 0);
}
static gint
e_summary_title_button_event (GnomeCanvasItem *item,
GdkEvent *event)
{
ESummaryTitleButton *estb;
ESummaryTitleButtonPrivate *priv;
estb = E_SUMMARY_TITLE_BUTTON (item);
priv = estb->private;
switch (event->type) {
case GDK_ENTER_NOTIFY:
priv->in_button = TRUE;
break;
case GDK_LEAVE_NOTIFY:
priv->in_button = FALSE;
break;
case GDK_BUTTON_PRESS:
if (priv->in_button) {
priv->button_down = TRUE;
gnome_canvas_item_grab (item,
GDK_LEAVE_NOTIFY_MASK |
GDK_ENTER_NOTIFY_MASK |
GDK_POINTER_MOTION_MASK |
GDK_BUTTON_RELEASE_MASK,
NULL, event->button.time);
}
break;
case GDK_BUTTON_RELEASE:
priv->button_down = FALSE;
gnome_canvas_item_ungrab (item, event->button.time);
if (priv->in_button) {
gtk_signal_emit (GTK_OBJECT (estb), estb_signals[CLICKED]);
}
break;
default:
return TRUE;
}
return FALSE;
}
