[andy/viking.git] / src / datasource_geojson.c

/* -*- Mode: C; indent-tabs-mode: t; c-basic-offset: 4; tab-width: 4 -*- */
/*
 * viking -- GPS Data and Topo Analyzer, Explorer, and Manager
 *
 * Copyright (C) 2014, Rob Norris <rw_norris@hotmail.com>
 *
 * 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
 *
 */
#include <glib/gi18n.h>
#include <glib/gstdio.h>
#include <gtk/gtk.h>

#include "viking.h"
#include "acquire.h"
#include "babel.h"
#include "geojson.h"

typedef struct {
	GtkWidget *files;
	GSList *filelist;  // Files selected
} datasource_geojson_user_data_t;

// The last used directory
static gchar *last_folder_uri = NULL;

static gpointer datasource_geojson_init ( acq_vik_t *avt );
static void datasource_geojson_add_setup_widgets ( GtkWidget *dialog, VikViewport *vvp, gpointer user_data );
static void datasource_geojson_get_cmd_string ( datasource_geojson_user_data_t *ud, gchar **cmd, gchar **input_file_type, DownloadMapOptions *options );
static gboolean datasource_geojson_process ( VikTrwLayer *vtl, const gchar *cmd, const gchar *extra, BabelStatusFunc status_cb, acq_dialog_widgets_t *adw, gpointer not_used );
static void datasource_geojson_cleanup ( gpointer data );

VikDataSourceInterface vik_datasource_geojson_interface = {
	N_("Acquire from GeoJSON"),
	N_("GeoJSON"),
	VIK_DATASOURCE_AUTO_LAYER_MANAGEMENT,
	VIK_DATASOURCE_INPUTTYPE_NONE,
	TRUE,
	FALSE, // We should be able to see the data on the screen so no point in keeping the dialog open
	FALSE, // Not thread method - open each file in the main loop
	(VikDataSourceInitFunc)               datasource_geojson_init,
	(VikDataSourceCheckExistenceFunc)     NULL,
	(VikDataSourceAddSetupWidgetsFunc)    datasource_geojson_add_setup_widgets,
	(VikDataSourceGetCmdStringFunc)       datasource_geojson_get_cmd_string,
	(VikDataSourceProcessFunc)            datasource_geojson_process,
	(VikDataSourceProgressFunc)           NULL,
	(VikDataSourceAddProgressWidgetsFunc) NULL,
	(VikDataSourceCleanupFunc)            datasource_geojson_cleanup,
	(VikDataSourceOffFunc)                NULL,
	NULL,
	0,
	NULL,
	NULL,
	0
};

static gpointer datasource_geojson_init ( acq_vik_t *avt )
{
	datasource_geojson_user_data_t *user_data = g_malloc(sizeof(datasource_geojson_user_data_t));
	user_data->filelist = NULL;
	return user_data;
}

static void datasource_geojson_add_setup_widgets ( GtkWidget *dialog, VikViewport *vvp, gpointer user_data )
{
	datasource_geojson_user_data_t *ud = (datasource_geojson_user_data_t *)user_data;

	ud->files = gtk_file_chooser_widget_new ( GTK_FILE_CHOOSER_ACTION_OPEN );

	// try to make it a nice size - otherwise seems to default to something impractically small
	gtk_window_set_default_size ( GTK_WINDOW (dialog) , 600, 300 );

	if ( last_folder_uri )
		gtk_file_chooser_set_current_folder_uri ( GTK_FILE_CHOOSER(ud->files), last_folder_uri );

	GtkFileChooser *chooser = GTK_FILE_CHOOSER ( ud->files );

	// Add filters
	GtkFileFilter *filter;
	filter = gtk_file_filter_new ();
	gtk_file_filter_set_name ( filter, _("All") );
	gtk_file_filter_add_pattern ( filter, "*" );
	gtk_file_chooser_add_filter ( chooser, filter );

	filter = gtk_file_filter_new ();
	gtk_file_filter_set_name ( filter, _("GeoJSON") );
	gtk_file_filter_add_pattern ( filter, "*.geojson" );
	gtk_file_chooser_add_filter ( chooser, filter );

	// Default to geojson
	gtk_file_chooser_set_filter ( chooser, filter );

	// Allow selecting more than one
	gtk_file_chooser_set_select_multiple ( chooser, TRUE );

	// Packing all widgets
	GtkBox *box = GTK_BOX(gtk_dialog_get_content_area(GTK_DIALOG(dialog)));
	gtk_box_pack_start ( box, ud->files, TRUE, TRUE, 0 );

	gtk_widget_show_all ( dialog );
}

static void datasource_geojson_get_cmd_string ( datasource_geojson_user_data_t *userdata, gchar **cmd, gchar **input_file_type, DownloadMapOptions *options )
{
	// Retrieve the files selected
	userdata->filelist = gtk_file_chooser_get_filenames ( GTK_FILE_CHOOSER(userdata->files) ); // Not reusable !!

	// Memorize the directory for later reuse
	g_free ( last_folder_uri );
	last_folder_uri = gtk_file_chooser_get_current_folder_uri ( GTK_FILE_CHOOSER(userdata->files) );
	last_folder_uri = g_strdup ( last_folder_uri );

	// TODO Memorize the file filter for later reuse?
	//GtkFileFilter *filter = gtk_file_chooser_get_filter ( GTK_FILE_CHOOSER(userdata->files) );

	// return some value so *thread* processing will continue
	*cmd = g_strdup ("fake command"); // Not really used, thus no translations
}

/**
 * Process selected files and try to generate waypoints storing them in the given vtl
 */
static gboolean datasource_geojson_process ( VikTrwLayer *vtl, const gchar *cmd, const gchar *extra, BabelStatusFunc status_cb, acq_dialog_widgets_t *adw, gpointer not_used )
{
	datasource_geojson_user_data_t *user_data = (datasource_geojson_user_data_t *)adw->user_data;

	// Process selected files
	GSList *cur_file = user_data->filelist;
	while ( cur_file ) {
		gchar *filename = cur_file->data;

		gchar *gpx_filename = a_geojson_import_to_gpx ( filename );
		if ( gpx_filename ) {
			// Important that this process is run in the main thread
			vik_window_open_file ( adw->vw, gpx_filename, FALSE );
			// Delete the temporary file
			g_remove (gpx_filename);
			g_free (gpx_filename);
		}
		else {
			gchar* msg = g_strdup_printf ( _("Unable to import from: %s"), filename );
			vik_window_statusbar_update ( adw->vw, msg, VIK_STATUSBAR_INFO );
			g_free (msg);
		}

		g_free ( filename );
		cur_file = g_slist_next ( cur_file );
	}

	// Free memory
	g_slist_free ( user_data->filelist );

	// No failure
	return TRUE;
}

static void datasource_geojson_cleanup ( gpointer data )
{
	g_free ( data );
}
Commit	Line	Data
c0c5893f RN	1	/* -- Mode: C; indent-tabs-mode: t; c-basic-offset: 4; tab-width: 4 -- */
	2	/*
	3	* viking -- GPS Data and Topo Analyzer, Explorer, and Manager
	4	*
	5	* Copyright (C) 2014, Rob Norris <rw_norris@hotmail.com>
	6	*
	7	* This program is free software; you can redistribute it and/or modify
	8	* it under the terms of the GNU General Public License as published by
	9	* the Free Software Foundation; either version 2 of the License, or
	10	* (at your option) any later version.
	11	*
	12	* This program is distributed in the hope that it will be useful,
	13	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	14	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	15	* GNU General Public License for more details.
	16	*
	17	* You should have received a copy of the GNU General Public License
	18	* along with this program; if not, write to the Free Software
	19	* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
	20	*
	21	*/
	22	#include <glib/gi18n.h>
	23	#include <glib/gstdio.h>
	24	#include <gtk/gtk.h>
	25
	26	#include "viking.h"
	27	#include "acquire.h"
	28	#include "babel.h"
	29	#include "geojson.h"
	30
	31	typedef struct {
	32	GtkWidget *files;
	33	GSList *filelist; // Files selected
	34	} datasource_geojson_user_data_t;
	35
	36	// The last used directory
	37	static gchar *last_folder_uri = NULL;
	38
	39	static gpointer datasource_geojson_init ( acq_vik_t *avt );
	40	static void datasource_geojson_add_setup_widgets ( GtkWidget dialog, VikViewport vvp, gpointer user_data );
	41	static void datasource_geojson_get_cmd_string ( datasource_geojson_user_data_t ud, gchar cmd, gchar input_file_type, DownloadMapOptions options );
	42	static gboolean datasource_geojson_process ( VikTrwLayer vtl, const gchar cmd, const gchar extra, BabelStatusFunc status_cb, acq_dialog_widgets_t adw, gpointer not_used );
	43	static void datasource_geojson_cleanup ( gpointer data );
	44
	45	VikDataSourceInterface vik_datasource_geojson_interface = {
	46	N_("Acquire from GeoJSON"),
	47	N_("GeoJSON"),
	48	VIK_DATASOURCE_AUTO_LAYER_MANAGEMENT,
	49	VIK_DATASOURCE_INPUTTYPE_NONE,
	50	TRUE,
	51	FALSE, // We should be able to see the data on the screen so no point in keeping the dialog open
	52	FALSE, // Not thread method - open each file in the main loop
	53	(VikDataSourceInitFunc) datasource_geojson_init,
	54	(VikDataSourceCheckExistenceFunc) NULL,
	55	(VikDataSourceAddSetupWidgetsFunc) datasource_geojson_add_setup_widgets,
	56	(VikDataSourceGetCmdStringFunc) datasource_geojson_get_cmd_string,
	57	(VikDataSourceProcessFunc) datasource_geojson_process,
	58	(VikDataSourceProgressFunc) NULL,
	59	(VikDataSourceAddProgressWidgetsFunc) NULL,
	60	(VikDataSourceCleanupFunc) datasource_geojson_cleanup,
	61	(VikDataSourceOffFunc) NULL,
	62	NULL,
	63	0,
	64	NULL,
65	NULL,
66	0
67	};
68
69	static gpointer datasource_geojson_init ( acq_vik_t *avt )
70	{
71	datasource_geojson_user_data_t *user_data = g_malloc(sizeof(datasource_geojson_user_data_t));
72	user_data->filelist = NULL;
73	return user_data;
74	}
75
76	static void datasource_geojson_add_setup_widgets ( GtkWidget dialog, VikViewport vvp, gpointer user_data )
77	{
78	datasource_geojson_user_data_t ud = (datasource_geojson_user_data_t )user_data;
79
80	ud->files = gtk_file_chooser_widget_new ( GTK_FILE_CHOOSER_ACTION_OPEN );
81
82	// try to make it a nice size - otherwise seems to default to something impractically small
83	gtk_window_set_default_size ( GTK_WINDOW (dialog) , 600, 300 );
84
85	if ( last_folder_uri )
86	gtk_file_chooser_set_current_folder_uri ( GTK_FILE_CHOOSER(ud->files), last_folder_uri );
87
88	GtkFileChooser *chooser = GTK_FILE_CHOOSER ( ud->files );
89
90	// Add filters
91	GtkFileFilter *filter;
92	filter = gtk_file_filter_new ();
93	gtk_file_filter_set_name ( filter, _("All") );
94	gtk_file_filter_add_pattern ( filter, "*" );
95	gtk_file_chooser_add_filter ( chooser, filter );
96
97	filter = gtk_file_filter_new ();
98	gtk_file_filter_set_name ( filter, _("GeoJSON") );
99	gtk_file_filter_add_pattern ( filter, "*.geojson" );
100	gtk_file_chooser_add_filter ( chooser, filter );
101
102	// Default to geojson
103	gtk_file_chooser_set_filter ( chooser, filter );
104
105	// Allow selecting more than one
106	gtk_file_chooser_set_select_multiple ( chooser, TRUE );
107
108	// Packing all widgets
109	GtkBox *box = GTK_BOX(gtk_dialog_get_content_area(GTK_DIALOG(dialog)));
110	gtk_box_pack_start ( box, ud->files, TRUE, TRUE, 0 );
111
112	gtk_widget_show_all ( dialog );
113	}
114
115	static void datasource_geojson_get_cmd_string ( datasource_geojson_user_data_t userdata, gchar cmd, gchar input_file_type, DownloadMapOptions options )
116	{
117	// Retrieve the files selected
118	userdata->filelist = gtk_file_chooser_get_filenames ( GTK_FILE_CHOOSER(userdata->files) ); // Not reusable !!
119
120	// Memorize the directory for later reuse
121	g_free ( last_folder_uri );
122	last_folder_uri = gtk_file_chooser_get_current_folder_uri ( GTK_FILE_CHOOSER(userdata->files) );
123	last_folder_uri = g_strdup ( last_folder_uri );
124
125	// TODO Memorize the file filter for later reuse?
126	//GtkFileFilter *filter = gtk_file_chooser_get_filter ( GTK_FILE_CHOOSER(userdata->files) );
127
128	// return some value so thread processing will continue
129	*cmd = g_strdup ("fake command"); // Not really used, thus no translations
130	}
131
132	/**
133	* Process selected files and try to generate waypoints storing them in the given vtl
134	*/
135	static gboolean datasource_geojson_process ( VikTrwLayer vtl, const gchar cmd, const gchar extra, BabelStatusFunc status_cb, acq_dialog_widgets_t adw, gpointer not_used )
136	{
137	datasource_geojson_user_data_t user_data = (datasource_geojson_user_data_t )adw->user_data;
138
139	// Process selected files
140	GSList *cur_file = user_data->filelist;
141	while ( cur_file ) {
142	gchar *filename = cur_file->data;
143
144	gchar *gpx_filename = a_geojson_import_to_gpx ( filename );
145	if ( gpx_filename ) {
146	// Important that this process is run in the main thread
147	vik_window_open_file ( adw->vw, gpx_filename, FALSE );
148	// Delete the temporary file
149	g_remove (gpx_filename);
150	g_free (gpx_filename);
151	}
152	else {
153	gchar* msg = g_strdup_printf ( _("Unable to import from: %s"), filename );
154	vik_window_statusbar_update ( adw->vw, msg, VIK_STATUSBAR_INFO );
155	g_free (msg);
156	}
157
158	g_free ( filename );
159	cur_file = g_slist_next ( cur_file );
160	}
161
162	// Free memory
163	g_slist_free ( user_data->filelist );
164
165	// No failure
166	return TRUE;
167	}
168
169	static void datasource_geojson_cleanup ( gpointer data )
170	{
171	g_free ( data );
172	}