finishing up repo migration
git-svn-id: svn://svn.code.sf.net/p/qjoypad/code/trunk@80 c05e91a0-76c8-4ec0-b377-ef19ce7cc080
This commit is contained in:
John Toman
virtuoussin13
270
src/joypad.cpp
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270
src/joypad.cpp
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#include "unistd.h"
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#include "joypad.h"
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#include <stdio.h>
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#include <fcntl.h>
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#include <poll.h>
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#include <QApplication>
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JoyPad::JoyPad( int i, int dev ) {
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//remember the index,
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index = i;
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//load data from the joystick device, if available.
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joydevFileHandle = NULL;
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if(dev > 0) {
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resetToDev(dev);
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joydevFileHandle = new QSocketNotifier(dev, QSocketNotifier::Read, this);
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connect(joydevFileHandle, SIGNAL(activated(int)), this, SLOT(handleJoyEvents(int)));
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}
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//there is no JoyPadWidget yet.
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jpw = NULL;
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}
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void JoyPad::resetToDev(int dev ) {
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//remember the device file descriptor
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joydev = dev;
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//read in the number of axes / buttons
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axes = 0;
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ioctl (joydev, JSIOCGAXES, &axes);
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buttons = 0;
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ioctl (joydev, JSIOCGBUTTONS, &buttons);
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//make sure that we have the axes we need.
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//if one that we need doesn't yet exist, add it in.
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//Note: if the current layout has a key assigned to an axis that did not
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//have a real joystick axis mapped to it, and this function suddenly brings
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//that axis into use, the key assignment will not be lost because the axis
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//will already exist and no new axis will be created.
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for (int i = 0; i < axes; i++) {
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if (Axes[i] == 0) Axes.insert(i, new Axis( i ));
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}
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for (int i = 0; i < buttons; i++) {
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if (Buttons[i] == 0) Buttons.insert(i, new Button( i ));
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}
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struct pollfd read_struct;
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read_struct.fd = joydev;
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read_struct.events = POLLIN;
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char buf[10];
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while(poll(&read_struct, 1, 2)!=0) {
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printf("reading junk data\n");
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read(joydev, buf, 10);
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}
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setupJoyDeviceListener(dev);
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}
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void JoyPad::setupJoyDeviceListener(int dev) {
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if(joydevFileHandle != NULL) {
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delete joydevFileHandle;
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}
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joydevFileHandle = new QSocketNotifier(dev, QSocketNotifier::Read, this);
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connect(joydevFileHandle, SIGNAL(activated(int)), this, SLOT(handleJoyEvents(int)));
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}
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void JoyPad::toDefault() {
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//to reset the whole, reset all the parts.
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do
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{
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QHashIterator<int, Axis*> it( Axes );
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while (it.hasNext())
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{
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it.next();
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it.value()->toDefault();
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}
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} while (0);
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do
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{
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QHashIterator<int, Button*> it( Buttons );
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while (it.hasNext())
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{
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it.next();
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it.value()->toDefault();
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}
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} while (0);
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}
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bool JoyPad::isDefault() {
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//if any of the parts are not at default, then the whole isn't either.
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do {
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QHashIterator<int, Axis*> it( Axes );
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while (it.hasNext())
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{
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it.next();
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if (!it.value()->isDefault()) return false;
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}
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} while (0);
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do {
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QHashIterator<int, Button*> it( Buttons );
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while (it.hasNext())
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{
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it.next();
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if (!it.value()->isDefault()) return false;
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}
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} while (0);
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return true;
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}
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bool JoyPad::readConfig( QTextStream* stream ) {
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toDefault();
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QString word;
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QChar dump;
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int num;
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*stream >> word;
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while (word != NULL && word != "}") {
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word = word.toLower();
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if (word == "button") {
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*stream >> num;
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if (num > 0) {
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*stream >> dump;
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if (dump != ':') {
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error("Layout file error", "Expected ':', found '" + QString(dump) + "'.");
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return false;
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}
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if (Buttons[num-1] == 0) {
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Buttons.insert(num-1,new Button(num-1));
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}
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if (!Buttons[num-1]->read( stream )) {
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error("Layout file error", "Error reading Button " + QString::number(num));
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return false;
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}
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}
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else {
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stream->readLine();
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}
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}
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else if (word == "axis") {
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*stream >> num;
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if (num > 0) {
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*stream >> dump;
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if (dump != ':') {
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error("Layout file error", "Expected ':', found '" + QString(dump) + "'.");
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return false;
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}
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if (Axes[num-1] == 0) {
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Axes.insert(num-1,new Axis(num-1));
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}
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if (!Axes[num-1]->read(stream)) {
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error("Layout file error", "Error reading Axis " + QString::number(num));
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return false;
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}
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}
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}
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else {
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error( "Layout file error", "Error while reading layout. Unrecognized word: " + word );
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return false;
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}
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*stream >> word;
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}
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return true;
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}
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//only actually writes something if this JoyPad is NON DEFAULT.
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void JoyPad::write( QTextStream* stream ) {
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int i = 0; //use to test if this is default or not.
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QString result;
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QTextStream* s = new QTextStream(&result, QIODevice::WriteOnly);
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*s << getName() << " {\n";
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do {
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QHashIterator<int, Axis*> it( Axes );
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while (it.hasNext()) {
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it.next();
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if (!it.value()->isDefault()) {
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it.value()->write( s );
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++i;
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}
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}
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} while (0);
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QHashIterator<int, Button*> it( Buttons );
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while (it.hasNext()) {
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it.next();
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if (!it.value()->isDefault()) {
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it.value()->write( s );
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++i;
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}
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}
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if (i > 0) {
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*stream << result << "}\n\n";
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}
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}
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void JoyPad::release() {
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do {
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QHashIterator<int, Axis*> it( Axes );
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while (it.hasNext()) {
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it.next();
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it.value()->release();
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}
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} while (0);
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do {
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QHashIterator<int, Button*> it( Buttons );
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while (it.hasNext()) {
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it.next();
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it.value()->release();
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}
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} while (0);
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}
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void JoyPad::jsevent( js_event msg ) {
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//if there is a JoyPadWidget around, ie, if the joypad is being edited
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if (jpw != NULL) {
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//tell the dialog there was an event. It will use this to flash
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//the appropriate button, if necesary.
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jpw->jsevent(msg);
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return;
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}
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//if the dialog is open, stop here. We don't want to signal ourselves with
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//the input we generate.
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if (qApp->activeWindow() != 0 && qApp->activeModalWidget() != 0) return;
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//otherwise, lets create us a fake event! Pass on the event to whichever
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//Button or Axis was pressed and let them decide what to do with it.
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if (msg.type & JS_EVENT_AXIS) {
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printf("passing on an axis event\n");
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printf("DEBUG: %d %d\n", msg.number, msg.value);
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Axes[msg.number]->jsevent(msg.value);
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}
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else {
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printf("passing on a button event\n");
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printf("DEBUG: %d %d\n", msg.number, msg.value);
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Buttons[msg.number]->jsevent(msg.value);
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}
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}
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JoyPadWidget* JoyPad::widget( QWidget* parent, int i) {
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//create the widget and remember it.
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jpw = new JoyPadWidget(this, i, parent);
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return jpw;
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}
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void JoyPad::handleJoyEvents(int fd) {
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js_event msg;
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int len;
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len = read( joydev, &msg, sizeof(js_event));
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//if there was a real event waiting,
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if (len == (int) sizeof(js_event)) {
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//pass that event on to the joypad!
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jsevent(msg);
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} else {
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printf("NOOOOOOO\n");
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}
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//sleep for a moment. This is just to keep us from throwing all the
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//available processer power into madly checking for new events.
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//usleep(10000);
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}
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void JoyPad::releaseWidget() {
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//this is how we know that there is no longer a JoyPadWidget around.
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jpw = NULL;
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}
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void JoyPad::unsetDev() {
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close(joydev);
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joydev = -1;
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if(joydevFileHandle != NULL) {
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delete joydevFileHandle;
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}
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}
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