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libdivecomputer integration: add a progress bar

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Instead of writing out the progress events, use them to update a real
progress bar.

Also, we need to handle gtk events while busy with the dive computer
reading.  That should *probably* be done with a threading model, because
libdivecomputer does seem to have some timing sensitivity - I'm getting
"failure to read memory block" if I make that loop do the standard

	while (gtk_events_pending())
		  gtk_main_iteration();

thing.  Besides, even if we did do that loop, it would still cause
problems when the libdivecomputer code is stuck reading a serial line
that doesn't respond or whatever.

But for now this ugly hack is "good enough" to get further.

Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Linus Torvalds 2011-09-12 11:41:26 -07:00
parent d5b7f7dc06
commit d45db9fac7
1 changed files with 44 additions and 21 deletions
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65
libdivecomputer.c
View file

@ -17,6 +17,18 @@
#include <atomics.h>
#include <utils.h>
/*
* I'd love to do a while-loop here for pending events, but
* that seems to screw up with the dive computer reading timing.
*
* I may need to spawn a new thread to do the computer
* reading stuff..
*/
static int run_gtk_mainloop(void)
{
return gtk_main_iteration_do(0);
}
static void error(const char *fmt, ...)
{
va_list args;
@ -33,7 +45,8 @@ static void error(const char *fmt, ...)
typedef struct device_data_t {
device_type_t type;
const char *name;
const char *name, *devname;
GtkWidget *progressbar;
device_devinfo_t devinfo;
device_clock_t clock;
} device_data_t;
@ -193,6 +206,9 @@ static int dive_cb(const unsigned char *data, unsigned int size,
device_data_t *devdata = userdata;
dc_datetime_t dt = {0};
/* Christ, this is hacky */
run_gtk_mainloop();
rc = create_parser(devdata, &parser);
if (rc != PARSER_STATUS_SUCCESS) {
error("Unable to create parser for %s", devdata->name);
@ -351,21 +367,23 @@ static device_status_t device_open(const char *devname,
}
static void
event_cb (device_t *device, device_event_t event, const void *data, void *userdata)
event_cb(device_t *device, device_event_t event, const void *data, void *userdata)
{
const device_progress_t *progress = (device_progress_t *) data;
const device_devinfo_t *devinfo = (device_devinfo_t *) data;
const device_clock_t *clock = (device_clock_t *) data;
device_data_t *devdata = (device_data_t *) userdata;
/* Christ, this is hacky */
run_gtk_mainloop();
switch (event) {
case DEVICE_EVENT_WAITING:
printf("Event: waiting for user action\n");
break;
case DEVICE_EVENT_PROGRESS:
printf("Event: progress %3.2f%% (%u/%u)\n",
100.0 * (double) progress->current / (double) progress->maximum,
progress->current, progress->maximum);
gtk_progress_bar_set_fraction(GTK_PROGRESS_BAR(devdata->progressbar),
(double) progress->current / (double) progress->maximum);
break;
case DEVICE_EVENT_DEVINFO:
devdata->devinfo = *devinfo;
@ -385,31 +403,27 @@ event_cb (device_t *device, device_event_t event, const void *data, void *userda
}
static int
cancel_cb (void *userdata)
cancel_cb(void *userdata)
{
return 0;
return run_gtk_mainloop();
}
static void do_import(const char *computer, device_type_t type)
static void do_import(device_data_t *data)
{
/* FIXME! Needs user input! */
const char *devname = "/dev/ttyUSB0";
device_t *device = NULL;
device_status_t rc;
device_data_t devicedata = {
.type = type,
.name = computer,
};
rc = device_open(devname, type, &device);
rc = device_open(devname, data->type, &device);
if (rc != DEVICE_STATUS_SUCCESS) {
error("Unable to open %s (%s)", computer, devname);
error("Unable to open %s (%s)", data->name, data->devname);
return;
}
// Register the event handler.
int events = DEVICE_EVENT_WAITING | DEVICE_EVENT_PROGRESS | DEVICE_EVENT_DEVINFO | DEVICE_EVENT_CLOCK;
rc = device_set_events(device, events, event_cb, &devicedata);
rc = device_set_events(device, events, event_cb, data);
if (rc != DEVICE_STATUS_SUCCESS) {
error("Error registering the event handler.");
device_close(device);
@ -417,14 +431,14 @@ static void do_import(const char *computer, device_type_t type)
}
// Register the cancellation handler.
rc = device_set_cancel(device, cancel_cb, &devicedata);
rc = device_set_cancel(device, cancel_cb, data);
if (rc != DEVICE_STATUS_SUCCESS) {
error("Error registering the cancellation handler.");
device_close(device);
return;
}
rc = import_device_data(device, &devicedata);
rc = import_device_data(device, data);
if (rc != DEVICE_STATUS_SUCCESS) {
error("Dive data import error");
device_close(device);
@ -490,7 +504,7 @@ static GtkComboBox *dive_computer_selector(GtkWidget *dialog)
GtkCellRenderer *renderer;
hbox = gtk_hbox_new(FALSE, 6);
gtk_container_add(GTK_CONTAINER(GTK_DIALOG(dialog)->vbox), hbox);
gtk_box_pack_start(GTK_BOX(GTK_DIALOG(dialog)->vbox), hbox, FALSE, FALSE, 3);
model = gtk_list_store_new(2, G_TYPE_STRING, G_TYPE_INT);
fill_computer_list(model);
@ -508,8 +522,11 @@ static GtkComboBox *dive_computer_selector(GtkWidget *dialog)
void import_dialog(GtkWidget *w, gpointer data)
{
int result;
GtkWidget *dialog;
GtkWidget *dialog, *hbox;
GtkComboBox *computer;
device_data_t devicedata = {
.devname = "/dev/ttyUSB0",
};
dialog = gtk_dialog_new_with_buttons("Import from dive computer",
GTK_WINDOW(main_window),
@ -520,6 +537,11 @@ void import_dialog(GtkWidget *w, gpointer data)
computer = dive_computer_selector(dialog);
hbox = gtk_hbox_new(FALSE, 6);
gtk_box_pack_start(GTK_BOX(GTK_DIALOG(dialog)->vbox), hbox, FALSE, TRUE, 3);
devicedata.progressbar = gtk_progress_bar_new();
gtk_container_add(GTK_CONTAINER(hbox), devicedata.progressbar);
gtk_widget_show_all(dialog);
result = gtk_dialog_run(GTK_DIALOG(dialog));
switch (result) {
@ -535,11 +557,12 @@ void import_dialog(GtkWidget *w, gpointer data)
0, &comp,
1, &type,
-1);
do_import(comp, type);
devicedata.type = type;
devicedata.name = comp;
do_import(&devicedata);
break;
default:
break;
}
gtk_widget_destroy(dialog);
}