/* File: crcanvas_demo.c
* Author: Roy Storey (rds@sanger.ac.uk)
* Copyright (c) 2006-2010: Genome Research Ltd.
*-------------------------------------------------------------------
* ZMap 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.
* or see the on-line version at http://www.gnu.org/copyleft/gpl.txt
*-------------------------------------------------------------------
* This file is part of the ZMap genome database package
* originally written by:
*
* Ed Griffiths (Sanger Institute, UK) edgrif@sanger.ac.uk,
* Roy Storey (Sanger Institute, UK) rds@sanger.ac.uk
*
* Description:
*
* Exported functions: See XXXXXXXXXXXXX.h
* HISTORY:
* Last edited: Jun 10 12:12 2009 (rds)
* Created: Wed Mar 14 21:39:04 2007 (rds)
* CVS info: $Id: goocanvas_demo.c,v 1.3 2010-03-04 14:49:02 mh17 Exp $
*-------------------------------------------------------------------
*/
#include <goocanvas_demo.h>
typedef struct
{
demoGUI gui;
demoContainer container;
GooCanvas *canvas;
GTimer *timer;
}GooCanvasTestSuiteDataStruct, *GooCanvasTestSuiteData;
static int zmapGooCanvasTestSuite(int argc, char *argv[]);
static GtkWidget *create_canvas_cb(GtkWidget *container, gpointer user_data);
static void random_items_cb(GtkWidget *button, gpointer user_data);
static void zoom_in_cb(GtkWidget *button, gpointer user_data);
static void zoom_out_cb(GtkWidget *button, gpointer user_data);
static void suite_destroy_notify_cb(gpointer user_data);
static gpointer create_item_cb(gpointer parent_item_data, gpointer user_data);
static gpointer create_group_cb(gpointer parent_item_data, double leftmost, gpointer user_data);
static gpointer get_item_bounds(gpointer parent_item_data, double *x1, double *y1, double *x2, double *y2, gpointer user_data);
static gpointer hide_item_cb(gpointer parent_item_data, gpointer user_data);
static gpointer move_item_cb(gpointer parent_item_data, gpointer user_data);
static demoGUICallbackSetStruct gui_funcs_G = {
create_canvas_cb,
G_CALLBACK(random_items_cb),
G_CALLBACK(zoom_in_cb),
G_CALLBACK(zoom_out_cb),
NULL, NULL, suite_destroy_notify_cb
};
static demoContainerCallbackSetStruct container_funcs_G = {
create_item_cb, create_group_cb,
get_item_bounds,
hide_item_cb, move_item_cb, NULL
};
/* main */
int main(int argc, char *argv[])
{
int main_rc;
main_rc = zmapGooCanvasTestSuite(argc, argv);
return main_rc;
}
/* INTERNALS */
/* setup... */
static int zmapGooCanvasTestSuite(int argc, char *argv[])
{
GooCanvasTestSuiteData suite;
gtk_init(&argc, &argv);
if((suite = g_new0(GooCanvasTestSuiteDataStruct, 1)))
{
suite->gui = demoGUICreate("GooCanvas Demo", &gui_funcs_G, suite);
suite->container = demoContainerCreate(NULL, &container_funcs_G, suite);
gtk_main();
demoUtilsExit(EXIT_SUCCESS);
return EXIT_FAILURE;
}
return EXIT_FAILURE;
}
/* The real code... */
/* to create our canvas! */
static GtkWidget *create_canvas_cb(GtkWidget *container, gpointer user_data)
{
GooCanvasTestSuiteData suite = (GooCanvasTestSuiteData)user_data;
GtkWidget *canvas = NULL;
canvas = goo_canvas_new();
suite->canvas = GOO_CANVAS(canvas);
return canvas;
}
static void random_items_cb(GtkWidget *button, gpointer user_data)
{
GooCanvasTestSuiteData suite = (GooCanvasTestSuiteData)user_data;
printf("Drawing ...\n");
srand(time(NULL));
demoContainerExercise(suite->container);
return ;
}
static void multiply_zoom(GooCanvasTestSuiteData suite, double factor)
{
double current;
current = goo_canvas_get_scale(suite->canvas);
goo_canvas_set_scale(suite->canvas, current * factor);
return ;
}
/* called when zoom_in button is pressed */
static void zoom_in_cb(GtkWidget *button, gpointer user_data)
{
GooCanvasTestSuiteData suite = (GooCanvasTestSuiteData)user_data;
printf("Zoom In CB\n");
multiply_zoom(suite, 2.0);
return ;
}
/* called when zoom out button is pressed */
static void zoom_out_cb(GtkWidget *button, gpointer user_data)
{
GooCanvasTestSuiteData suite = (GooCanvasTestSuiteData)user_data;
printf("Zoom Out CB\n");
multiply_zoom(suite, 0.5);
return ;
}
/* called by the toplevel destroy... */
static void suite_destroy_notify_cb(gpointer user_data)
{
GooCanvasTestSuiteData suite = (GooCanvasTestSuiteData)user_data;
printf("Suite DestroyNotify CB\n");
g_free(suite);
return ;
}
static gboolean goocanvas_item_debug_G = FALSE;
/* canvas stuff */
static gpointer create_item_cb(gpointer parent_item_data, gpointer user_data)
{
GooCanvasItem *item = NULL;
double x, y, width, height;
if(goocanvas_item_debug_G)
printf("%s\n", __PRETTY_FUNCTION__);
x = (double)(rand() % (int)COLUMN_WIDTH);
y = (double)(rand() % (int)CANVAS_HEIGHT);
width = COLUMN_WIDTH;
height = (double)(rand() % (int)ITEM_MAX_HEIGHT);
item = goo_canvas_rect_new(parent_item_data,
x, y, width, height,
"fill-color", "red",
NULL);
return item;
}
static gpointer create_group_cb(gpointer parent_item_data, double leftmost, gpointer user_data)
{
GooCanvasItem *parent = parent_item_data;
GooCanvasGroup *group = NULL;
if(goocanvas_item_debug_G)
printf("%s\n", __PRETTY_FUNCTION__);
if(!parent)
{
GooCanvasTestSuiteData suite = (GooCanvasTestSuiteData)user_data;
parent = goo_canvas_get_root_item(suite->canvas);
}
if(parent)
{
group = (GooCanvasGroup *) goo_canvas_group_new(parent, NULL);
}
return group;
}
static gpointer get_item_bounds(gpointer parent_item_data, double *x1, double *y1, double *x2, double *y2, gpointer user_data)
{
GooCanvasBounds bounds = {0.0};
goo_canvas_item_get_bounds(parent_item_data, &bounds);
if(x1)
*x1 = bounds.x1;
if(x2)
*x2 = bounds.x2;
if(y1)
*y1 = bounds.y1;
if(y2)
*y2 = bounds.y2;
return NULL;
}
static gpointer hide_item_cb(gpointer parent_item_data, gpointer user_data)
{
if(goocanvas_item_debug_G)
printf("%s\n", __PRETTY_FUNCTION__);
return NULL;
}
static gpointer move_item_cb(gpointer parent_item_data, gpointer user_data)
{
if(goocanvas_item_debug_G)
printf("%s\n", __PRETTY_FUNCTION__);
return NULL;
}