ref: 07f70200d06d1cfa2e0d2841d8f91e21228bd05f
dir: /external/SDL2/src/hidapi/testgui/test.cpp/
/*******************************************************
Demo Program for HIDAPI
Alan Ott
Signal 11 Software
2010-07-20
Copyright 2010, All Rights Reserved
This contents of this file may be used by anyone
for any reason without any conditions and may be
used as a starting point for your own applications
which use HIDAPI.
********************************************************/
#include <fx.h>
#include "hidapi.h"
#include "mac_support.h"
#include <string.h>
#include <stdlib.h>
#include <limits.h>
#ifdef _WIN32
// Thanks Microsoft, but I know how to use strncpy().
#pragma warning(disable:4996)
#endif
class MainWindow : public FXMainWindow {
FXDECLARE(MainWindow)
public:
enum {
ID_FIRST = FXMainWindow::ID_LAST,
ID_CONNECT,
ID_DISCONNECT,
ID_RESCAN,
ID_SEND_OUTPUT_REPORT,
ID_SEND_FEATURE_REPORT,
ID_GET_FEATURE_REPORT,
ID_CLEAR,
ID_TIMER,
ID_MAC_TIMER,
ID_LAST,
};
private:
FXList *device_list;
FXButton *connect_button;
FXButton *disconnect_button;
FXButton *rescan_button;
FXButton *output_button;
FXLabel *connected_label;
FXTextField *output_text;
FXTextField *output_len;
FXButton *feature_button;
FXButton *get_feature_button;
FXTextField *feature_text;
FXTextField *feature_len;
FXTextField *get_feature_text;
FXText *input_text;
FXFont *title_font;
struct hid_device_info *devices;
hid_device *connected_device;
size_t getDataFromTextField(FXTextField *tf, char *buf, size_t len);
int getLengthFromTextField(FXTextField *tf);
protected:
MainWindow() {};
public:
MainWindow(FXApp *a);
~MainWindow();
virtual void create();
long onConnect(FXObject *sender, FXSelector sel, void *ptr);
long onDisconnect(FXObject *sender, FXSelector sel, void *ptr);
long onRescan(FXObject *sender, FXSelector sel, void *ptr);
long onSendOutputReport(FXObject *sender, FXSelector sel, void *ptr);
long onSendFeatureReport(FXObject *sender, FXSelector sel, void *ptr);
long onGetFeatureReport(FXObject *sender, FXSelector sel, void *ptr);
long onClear(FXObject *sender, FXSelector sel, void *ptr);
long onTimeout(FXObject *sender, FXSelector sel, void *ptr);
long onMacTimeout(FXObject *sender, FXSelector sel, void *ptr);
};
// FOX 1.7 changes the timeouts to all be nanoseconds.
// Fox 1.6 had all timeouts as milliseconds.
#if (FOX_MINOR >= 7)
const int timeout_scalar = 1000*1000;
#else
const int timeout_scalar = 1;
#endif
FXMainWindow *g_main_window;
FXDEFMAP(MainWindow) MainWindowMap [] = {
FXMAPFUNC(SEL_COMMAND, MainWindow::ID_CONNECT, MainWindow::onConnect ),
FXMAPFUNC(SEL_COMMAND, MainWindow::ID_DISCONNECT, MainWindow::onDisconnect ),
FXMAPFUNC(SEL_COMMAND, MainWindow::ID_RESCAN, MainWindow::onRescan ),
FXMAPFUNC(SEL_COMMAND, MainWindow::ID_SEND_OUTPUT_REPORT, MainWindow::onSendOutputReport ),
FXMAPFUNC(SEL_COMMAND, MainWindow::ID_SEND_FEATURE_REPORT, MainWindow::onSendFeatureReport ),
FXMAPFUNC(SEL_COMMAND, MainWindow::ID_GET_FEATURE_REPORT, MainWindow::onGetFeatureReport ),
FXMAPFUNC(SEL_COMMAND, MainWindow::ID_CLEAR, MainWindow::onClear ),
FXMAPFUNC(SEL_TIMEOUT, MainWindow::ID_TIMER, MainWindow::onTimeout ),
FXMAPFUNC(SEL_TIMEOUT, MainWindow::ID_MAC_TIMER, MainWindow::onMacTimeout ),
};
FXIMPLEMENT(MainWindow, FXMainWindow, MainWindowMap, ARRAYNUMBER(MainWindowMap));
MainWindow::MainWindow(FXApp *app)
: FXMainWindow(app, "HIDAPI Test Application", NULL, NULL, DECOR_ALL, 200,100, 425,700)
{
devices = NULL;
connected_device = NULL;
FXVerticalFrame *vf = new FXVerticalFrame(this, LAYOUT_FILL_Y|LAYOUT_FILL_X);
FXLabel *label = new FXLabel(vf, "HIDAPI Test Tool");
title_font = new FXFont(getApp(), "Arial", 14, FXFont::Bold);
label->setFont(title_font);
new FXLabel(vf,
"Select a device and press Connect.", NULL, JUSTIFY_LEFT);
new FXLabel(vf,
"Output data bytes can be entered in the Output section, \n"
"separated by space, comma or brackets. Data starting with 0x\n"
"is treated as hex. Data beginning with a 0 is treated as \n"
"octal. All other data is treated as decimal.", NULL, JUSTIFY_LEFT);
new FXLabel(vf,
"Data received from the device appears in the Input section.",
NULL, JUSTIFY_LEFT);
new FXLabel(vf,
"Optionally, a report length may be specified. Extra bytes are\n"
"padded with zeros. If no length is specified, the length is \n"
"inferred from the data.",
NULL, JUSTIFY_LEFT);
new FXLabel(vf, "");
// Device List and Connect/Disconnect buttons
FXHorizontalFrame *hf = new FXHorizontalFrame(vf, LAYOUT_FILL_X);
//device_list = new FXList(new FXHorizontalFrame(hf,FRAME_SUNKEN|FRAME_THICK, 0,0,0,0, 0,0,0,0), NULL, 0, LISTBOX_NORMAL|LAYOUT_FILL_X|LAYOUT_FILL_Y|LAYOUT_FIX_WIDTH|LAYOUT_FIX_HEIGHT, 0,0,300,200);
device_list = new FXList(new FXHorizontalFrame(hf,FRAME_SUNKEN|FRAME_THICK|LAYOUT_FILL_X|LAYOUT_FILL_Y, 0,0,0,0, 0,0,0,0), NULL, 0, LISTBOX_NORMAL|LAYOUT_FILL_X|LAYOUT_FILL_Y, 0,0,300,200);
FXVerticalFrame *buttonVF = new FXVerticalFrame(hf);
connect_button = new FXButton(buttonVF, "Connect", NULL, this, ID_CONNECT, BUTTON_NORMAL|LAYOUT_FILL_X);
disconnect_button = new FXButton(buttonVF, "Disconnect", NULL, this, ID_DISCONNECT, BUTTON_NORMAL|LAYOUT_FILL_X);
disconnect_button->disable();
rescan_button = new FXButton(buttonVF, "Re-Scan devices", NULL, this, ID_RESCAN, BUTTON_NORMAL|LAYOUT_FILL_X);
new FXHorizontalFrame(buttonVF, 0, 0,0,0,0, 0,0,50,0);
connected_label = new FXLabel(vf, "Disconnected");
new FXHorizontalFrame(vf);
// Output Group Box
FXGroupBox *gb = new FXGroupBox(vf, "Output", FRAME_GROOVE|LAYOUT_FILL_X);
FXMatrix *matrix = new FXMatrix(gb, 3, MATRIX_BY_COLUMNS|LAYOUT_FILL_X);
new FXLabel(matrix, "Data");
new FXLabel(matrix, "Length");
new FXLabel(matrix, "");
//hf = new FXHorizontalFrame(gb, LAYOUT_FILL_X);
output_text = new FXTextField(matrix, 30, NULL, 0, TEXTFIELD_NORMAL|LAYOUT_FILL_X|LAYOUT_FILL_COLUMN);
output_text->setText("1 0x81 0");
output_len = new FXTextField(matrix, 5, NULL, 0, TEXTFIELD_NORMAL|LAYOUT_FILL_X|LAYOUT_FILL_COLUMN);
output_button = new FXButton(matrix, "Send Output Report", NULL, this, ID_SEND_OUTPUT_REPORT, BUTTON_NORMAL|LAYOUT_FILL_X);
output_button->disable();
//new FXHorizontalFrame(matrix, LAYOUT_FILL_X);
//hf = new FXHorizontalFrame(gb, LAYOUT_FILL_X);
feature_text = new FXTextField(matrix, 30, NULL, 0, TEXTFIELD_NORMAL|LAYOUT_FILL_X|LAYOUT_FILL_COLUMN);
feature_len = new FXTextField(matrix, 5, NULL, 0, TEXTFIELD_NORMAL|LAYOUT_FILL_X|LAYOUT_FILL_COLUMN);
feature_button = new FXButton(matrix, "Send Feature Report", NULL, this, ID_SEND_FEATURE_REPORT, BUTTON_NORMAL|LAYOUT_FILL_X);
feature_button->disable();
get_feature_text = new FXTextField(matrix, 30, NULL, 0, TEXTFIELD_NORMAL|LAYOUT_FILL_X|LAYOUT_FILL_COLUMN);
new FXWindow(matrix);
get_feature_button = new FXButton(matrix, "Get Feature Report", NULL, this, ID_GET_FEATURE_REPORT, BUTTON_NORMAL|LAYOUT_FILL_X);
get_feature_button->disable();
// Input Group Box
gb = new FXGroupBox(vf, "Input", FRAME_GROOVE|LAYOUT_FILL_X|LAYOUT_FILL_Y);
FXVerticalFrame *innerVF = new FXVerticalFrame(gb, LAYOUT_FILL_X|LAYOUT_FILL_Y);
input_text = new FXText(new FXHorizontalFrame(innerVF,LAYOUT_FILL_X|LAYOUT_FILL_Y|FRAME_SUNKEN|FRAME_THICK, 0,0,0,0, 0,0,0,0), NULL, 0, LAYOUT_FILL_X|LAYOUT_FILL_Y);
input_text->setEditable(false);
new FXButton(innerVF, "Clear", NULL, this, ID_CLEAR, BUTTON_NORMAL|LAYOUT_RIGHT);
}
MainWindow::~MainWindow()
{
if (connected_device)
hid_close(connected_device);
hid_exit();
delete title_font;
}
void
MainWindow::create()
{
FXMainWindow::create();
show();
onRescan(NULL, 0, NULL);
#ifdef __APPLE__
init_apple_message_system();
#endif
getApp()->addTimeout(this, ID_MAC_TIMER,
50 * timeout_scalar /*50ms*/);
}
long
MainWindow::onConnect(FXObject *sender, FXSelector sel, void *ptr)
{
if (connected_device != NULL)
return 1;
FXint cur_item = device_list->getCurrentItem();
if (cur_item < 0)
return -1;
FXListItem *item = device_list->getItem(cur_item);
if (!item)
return -1;
struct hid_device_info *device_info = (struct hid_device_info*) item->getData();
if (!device_info)
return -1;
connected_device = hid_open_path(device_info->path);
if (!connected_device) {
FXMessageBox::error(this, MBOX_OK, "Device Error", "Unable To Connect to Device");
return -1;
}
hid_set_nonblocking(connected_device, 1);
getApp()->addTimeout(this, ID_TIMER,
5 * timeout_scalar /*5ms*/);
FXString s;
s.format("Connected to: %04hx:%04hx -", device_info->vendor_id, device_info->product_id);
s += FXString(" ") + device_info->manufacturer_string;
s += FXString(" ") + device_info->product_string;
connected_label->setText(s);
output_button->enable();
feature_button->enable();
get_feature_button->enable();
connect_button->disable();
disconnect_button->enable();
input_text->setText("");
return 1;
}
long
MainWindow::onDisconnect(FXObject *sender, FXSelector sel, void *ptr)
{
hid_close(connected_device);
connected_device = NULL;
connected_label->setText("Disconnected");
output_button->disable();
feature_button->disable();
get_feature_button->disable();
connect_button->enable();
disconnect_button->disable();
getApp()->removeTimeout(this, ID_TIMER);
return 1;
}
long
MainWindow::onRescan(FXObject *sender, FXSelector sel, void *ptr)
{
struct hid_device_info *cur_dev;
device_list->clearItems();
// List the Devices
hid_free_enumeration(devices);
devices = hid_enumerate(0x0, 0x0);
cur_dev = devices;
while (cur_dev) {
// Add it to the List Box.
FXString s;
FXString usage_str;
s.format("%04hx:%04hx -", cur_dev->vendor_id, cur_dev->product_id);
s += FXString(" ") + cur_dev->manufacturer_string;
s += FXString(" ") + cur_dev->product_string;
usage_str.format(" (usage: %04hx:%04hx) ", cur_dev->usage_page, cur_dev->usage);
s += usage_str;
FXListItem *li = new FXListItem(s, NULL, cur_dev);
device_list->appendItem(li);
cur_dev = cur_dev->next;
}
if (device_list->getNumItems() == 0)
device_list->appendItem("*** No Devices Connected ***");
else {
device_list->selectItem(0);
}
return 1;
}
size_t
MainWindow::getDataFromTextField(FXTextField *tf, char *buf, size_t len)
{
const char *delim = " ,{}\t\r\n";
FXString data = tf->getText();
const FXchar *d = data.text();
size_t i = 0;
// Copy the string from the GUI.
size_t sz = strlen(d);
char *str = (char*) malloc(sz+1);
strcpy(str, d);
// For each token in the string, parse and store in buf[].
char *token = strtok(str, delim);
while (token) {
char *endptr;
long int val = strtol(token, &endptr, 0);
buf[i++] = val;
token = strtok(NULL, delim);
}
free(str);
return i;
}
/* getLengthFromTextField()
Returns length:
0: empty text field
>0: valid length
-1: invalid length */
int
MainWindow::getLengthFromTextField(FXTextField *tf)
{
long int len;
FXString str = tf->getText();
size_t sz = str.length();
if (sz > 0) {
char *endptr;
len = strtol(str.text(), &endptr, 0);
if (endptr != str.text() && *endptr == '\0') {
if (len <= 0) {
FXMessageBox::error(this, MBOX_OK, "Invalid length", "Enter a length greater than zero.");
return -1;
}
return len;
}
else
return -1;
}
return 0;
}
long
MainWindow::onSendOutputReport(FXObject *sender, FXSelector sel, void *ptr)
{
char buf[256];
size_t data_len, len;
int textfield_len;
memset(buf, 0x0, sizeof(buf));
textfield_len = getLengthFromTextField(output_len);
data_len = getDataFromTextField(output_text, buf, sizeof(buf));
if (textfield_len < 0) {
FXMessageBox::error(this, MBOX_OK, "Invalid length", "Length field is invalid. Please enter a number in hex, octal, or decimal.");
return 1;
}
if (textfield_len > sizeof(buf)) {
FXMessageBox::error(this, MBOX_OK, "Invalid length", "Length field is too long.");
return 1;
}
len = (textfield_len)? textfield_len: data_len;
int res = hid_write(connected_device, (const unsigned char*)buf, len);
if (res < 0) {
FXMessageBox::error(this, MBOX_OK, "Error Writing", "Could not write to device. Error reported was: %ls", hid_error(connected_device));
}
return 1;
}
long
MainWindow::onSendFeatureReport(FXObject *sender, FXSelector sel, void *ptr)
{
char buf[256];
size_t data_len, len;
int textfield_len;
memset(buf, 0x0, sizeof(buf));
textfield_len = getLengthFromTextField(feature_len);
data_len = getDataFromTextField(feature_text, buf, sizeof(buf));
if (textfield_len < 0) {
FXMessageBox::error(this, MBOX_OK, "Invalid length", "Length field is invalid. Please enter a number in hex, octal, or decimal.");
return 1;
}
if (textfield_len > sizeof(buf)) {
FXMessageBox::error(this, MBOX_OK, "Invalid length", "Length field is too long.");
return 1;
}
len = (textfield_len)? textfield_len: data_len;
int res = hid_send_feature_report(connected_device, (const unsigned char*)buf, len);
if (res < 0) {
FXMessageBox::error(this, MBOX_OK, "Error Writing", "Could not send feature report to device. Error reported was: %ls", hid_error(connected_device));
}
return 1;
}
long
MainWindow::onGetFeatureReport(FXObject *sender, FXSelector sel, void *ptr)
{
char buf[256];
size_t len;
memset(buf, 0x0, sizeof(buf));
len = getDataFromTextField(get_feature_text, buf, sizeof(buf));
if (len != 1) {
FXMessageBox::error(this, MBOX_OK, "Too many numbers", "Enter only a single report number in the text field");
}
int res = hid_get_feature_report(connected_device, (unsigned char*)buf, sizeof(buf));
if (res < 0) {
FXMessageBox::error(this, MBOX_OK, "Error Getting Report", "Could not get feature report from device. Error reported was: %ls", hid_error(connected_device));
}
if (res > 0) {
FXString s;
s.format("Returned Feature Report. %d bytes:\n", res);
for (int i = 0; i < res; i++) {
FXString t;
t.format("%02hhx ", buf[i]);
s += t;
if ((i+1) % 4 == 0)
s += " ";
if ((i+1) % 16 == 0)
s += "\n";
}
s += "\n";
input_text->appendText(s);
input_text->setBottomLine(INT_MAX);
}
return 1;
}
long
MainWindow::onClear(FXObject *sender, FXSelector sel, void *ptr)
{
input_text->setText("");
return 1;
}
long
MainWindow::onTimeout(FXObject *sender, FXSelector sel, void *ptr)
{
unsigned char buf[256];
int res = hid_read(connected_device, buf, sizeof(buf));
if (res > 0) {
FXString s;
s.format("Received %d bytes:\n", res);
for (int i = 0; i < res; i++) {
FXString t;
t.format("%02hhx ", buf[i]);
s += t;
if ((i+1) % 4 == 0)
s += " ";
if ((i+1) % 16 == 0)
s += "\n";
}
s += "\n";
input_text->appendText(s);
input_text->setBottomLine(INT_MAX);
}
if (res < 0) {
input_text->appendText("hid_read() returned error\n");
input_text->setBottomLine(INT_MAX);
}
getApp()->addTimeout(this, ID_TIMER,
5 * timeout_scalar /*5ms*/);
return 1;
}
long
MainWindow::onMacTimeout(FXObject *sender, FXSelector sel, void *ptr)
{
#ifdef __APPLE__
check_apple_events();
getApp()->addTimeout(this, ID_MAC_TIMER,
50 * timeout_scalar /*50ms*/);
#endif
return 1;
}
int main(int argc, char **argv)
{
FXApp app("HIDAPI Test Application", "Signal 11 Software");
app.init(argc, argv);
g_main_window = new MainWindow(&app);
app.create();
app.run();
return 0;
}