qt-light/main.cpp

/* main.cpp */


#include <QtGui>
#include <QtUiTools>
#include <QGLWidget>
#include <QtMultimedia/QSound>
#include <chicken.h>
#include <assert.h>


#define ___safe
#define ___bool         int
#define ___out


static int qt_char_encoding = 1;	// 0=latin1, 1=utf8, 2=ascii


class SimpleReceiver: public QObject
{
  Q_OBJECT 

  void *thunk;

public:

  SimpleReceiver(char *name, C_word proc) { 
    setObjectName(name);
    thunk = CHICKEN_new_gc_root(); 
    CHICKEN_gc_root_set(thunk, proc);
  }

  ~SimpleReceiver() { CHICKEN_delete_gc_root(thunk); }

public slots:
  void slot() { C_callback(CHICKEN_gc_root_ref(thunk), 0); }
};


class GLWidget: public QGLWidget
{
  void *thunk;

public:
  GLWidget(char *name, QWidget *parent, C_word proc) : QGLWidget(parent) {
    setObjectName(name);
    thunk = CHICKEN_new_gc_root(); 
    CHICKEN_gc_root_set(thunk, proc);
  }

  ~GLWidget() { CHICKEN_delete_gc_root(thunk); }

protected:
  // Set up the rendering context, define display lists etc.:
  void initializeGL() { C_save(C_fix(0)); C_callback(CHICKEN_gc_root_ref(thunk), 1); }
  // setup viewport, projection etc.:
  void resizeGL(int w, int h) { C_save(C_fix(1)); C_save(C_fix(w)); C_save(C_fix(h)); C_callback(CHICKEN_gc_root_ref(thunk), 3); }
  // draw the scene:
  void paintGL() { C_save(C_fix(2)); C_callback(CHICKEN_gc_root_ref(thunk), 1); }
};


#define qtobject          QObject *
#define qtapplication     QApplication *
#define qtreceiver        SimpleReceiver *
#define qtwidget          QWidget *
#define qtpixmap           QPixmap *
#define qttimer           QTimer *
#define qtsound           QSound *
#define qttextedit        QTextEdit *
#define qtaction          QAction *

extern "C" {
#include "prototypes.h"
}


#include "main.moc"


QApplication *qt_init()
{
  QApplication *app = new QApplication(C_main_argc, C_main_argv);
  QObject::connect(app, SIGNAL(lastWindowClosed()), app, SLOT(quit()));
  return qApp;
}


QWidget *qt_create(char *string, QWidget *parent)
{
  QUiLoader loader;
  QBuffer buf;
  buf.open(QBuffer::ReadWrite);
  buf.write(string);
  buf.seek(0);
  QWidget *w = loader.load(&buf, parent);
  buf.close();
  return w;
}


___bool qt_run(___bool once)
{
  if(once) {
    qApp->processEvents();
    return 1;
  }
  else return qApp->exec();
}


void qt_show(QWidget *w) { w->show(); }
void qt_hide(QWidget *w) { w->show(); }
void qt_deleteobject(QObject *o) { delete o; }
void qt_deletepixmap(QPixmap *o) { delete o; }
___bool qt_connect(QWidget *w1, char *sig, QObject *w2, char *slot) { return bool(QObject::connect(w1, sig, w2, slot)); }
QObject *qt_find(QObject *parent, char *name) { return parent->findChild<QObject *>(QString(name)); }
QObject *qt_receiver(char *name, C_word proc) { return new SimpleReceiver(name, proc); }


char *qstrdata(const QString &str)
{
  static char *strbuf = NULL;
  static int strbuflen = 0;
  int len = str.size();

  if(strbuf == NULL || strbuflen < len) {
    strbuf = (char *)realloc(strbuf, strbuflen = len * 2);
    assert(strbuf != NULL);
  }

  char *ptr;

  switch(qt_char_encoding) {

  case 1: ptr = str.toLatin1().data(); break;
  case 2: ptr = str.toUtf8().data(); break;
  case 3: ptr = str.toLatin1().data(); break;
  }

  memcpy(strbuf, ptr, len + 1);
  return strbuf;
}


int qchrdata(const QChar chr)
{
  switch(qt_char_encoding) {

  case 1: return chr.toLatin1(); break;
  case 2: return chr.unicode(); break;
  default: return chr.toLatin1(); break;
  }
}


qtpixmap qt_pixmap(char *filename)
{
  QPixmap *px = new QPixmap(filename);
  
  if(px->isNull()) {
    delete px;
    return 0;
  }
  
  return px;
}


int qt_message(char *caption, char *text, QWidget *parent, char *b0, char *b1, char *b2)
{
  return QMessageBox::information(parent, caption, text, b0, b1, b2);
}


#define propsetter(name, type)					     \
___bool qt_set ## name ## property(QWidget *w, char *prop, type val) \
{ \
  const QMetaObject *mo = w->metaObject(); \
  int i = mo->indexOfProperty(prop); \
  if(i == -1) return 0; \
  else return mo->property(i).write(w, val); \
}


propsetter(string, char *)
propsetter(bool, ___bool)
propsetter(int, int)
propsetter(float, double)
propsetter(char, char)


___bool qt_setpixmapproperty(QWidget *w, char *prop, qtpixmap val)
{
  const QMetaObject *mo = w->metaObject();
  int i = mo->indexOfProperty(prop);
  if(i == -1) return 0;
  else return mo->property(i).write(w, *val);
}


___bool qt_setpointproperty(QWidget *w, char *prop, int *val)
{
  const QMetaObject *mo = w->metaObject();
  int i = mo->indexOfProperty(prop);
  if(i == -1) return 0;
  else {
    switch(mo->property(i).type()) {
    case QVariant::Point: return mo->property(i).write(w, QPoint(val[ 0 ], val[ 1 ]));
    case QVariant::Size: return mo->property(i).write(w, QSize(val[ 0 ], val[ 1 ]));
    default: return false;
    }
  }
}


___bool qt_setpointfproperty(QWidget *w, char *prop, double *val)
{
  const QMetaObject *mo = w->metaObject();
  int i = mo->indexOfProperty(prop);
  if(i == -1) return 0;
  else {
    switch(mo->property(i).type()) {
    case QVariant::PointF: return mo->property(i).write(w, QPointF(val[ 0 ], val[ 1 ]));
    case QVariant::SizeF: return mo->property(i).write(w, QSizeF(val[ 0 ], val[ 1 ]));
    default: return false;
    }
  }
}


___bool qt_setrectproperty(QWidget *w, char *prop, int *val)
{
  const QMetaObject *mo = w->metaObject();
  int i = mo->indexOfProperty(prop);
  if(i == -1) return 0;
  else return mo->property(i).write(w, QRect(val[ 0 ], val[ 1 ], val[ 2 ], val[ 3 ]));
}


___bool qt_setrectfproperty(QWidget *w, char *prop, double *val)
{
  const QMetaObject *mo = w->metaObject();
  int i = mo->indexOfProperty(prop);
  if(i == -1) return 0;
  else return mo->property(i).write(w, QRectF(val[ 0 ], val[ 1 ], val[ 2 ], val[ 3 ]));
}


char *qt_getstringproperty(QWidget *w, char *prop) 
{
  const QMetaObject *mo = w->metaObject();
  int i = mo->indexOfProperty(prop);	       
  return qstrdata(mo->property(i).read(w).toString());
}


int qt_getcharproperty(QWidget *w, char *prop) 
{
  const QMetaObject *mo = w->metaObject();
  int i = mo->indexOfProperty(prop);	       
  return qchrdata(mo->property(i).read(w).toChar());
}


int qt_getintproperty(QWidget *w, char *prop) 
{
  const QMetaObject *mo = w->metaObject();
  int i = mo->indexOfProperty(prop);	       
  return mo->property(i).read(w).toInt();
}


double qt_getfloatproperty(QWidget *w, char *prop) 
{
  const QMetaObject *mo = w->metaObject();
  int i = mo->indexOfProperty(prop);	       
  return mo->property(i).read(w).toDouble();
}


___bool qt_getboolproperty(QWidget *w, char *prop) 
{
  const QMetaObject *mo = w->metaObject();
  int i = mo->indexOfProperty(prop);	       
  return mo->property(i).read(w).toBool();
}


qtpixmap qt_getpixmapproperty(QWidget *w, char *prop) 
{
  const QMetaObject *mo = w->metaObject();
  int i = mo->indexOfProperty(prop);	       
  return new QPixmap(mo->property(i).read(w).value<QPixmap>());
}


C_word qt_getpointfproperty(QWidget *w, char *prop, C_word pt) 
{
  const QMetaObject *mo = w->metaObject();
  int i = mo->indexOfProperty(prop);	       
  QPointF qpt = mo->property(i).read(w).toPointF();
  *((double *)C_data_pointer(C_block_item(pt, 1))) = qpt.x();
  ((double *)C_data_pointer(C_block_item(pt, 1)))[ 1 ] = qpt.y();
  return pt;
}


C_word qt_getpointproperty(QWidget *w, char *prop, C_word pt) 
{
  const QMetaObject *mo = w->metaObject();
  int i = mo->indexOfProperty(prop);	       
  QPoint qpt = mo->property(i).read(w).toPoint();
  *((int *)C_data_pointer(C_block_item(pt, 1))) = qpt.x();
  ((int *)C_data_pointer(C_block_item(pt, 1)))[ 1 ] = qpt.y();
  return pt;
}


C_word qt_getrectfproperty(QWidget *w, char *prop, C_word pt) 
{
  const QMetaObject *mo = w->metaObject();
  int i = mo->indexOfProperty(prop);	       
  QRectF qpt = mo->property(i).read(w).toRectF();
  *((double *)C_data_pointer(C_block_item(pt, 1))) = qpt.x();
  ((double *)C_data_pointer(C_block_item(pt, 1)))[ 1 ] = qpt.y();
  ((double *)C_data_pointer(C_block_item(pt, 1)))[ 2 ] = qpt.width();
  ((double *)C_data_pointer(C_block_item(pt, 1)))[ 3 ] = qpt.height();
  return pt;
}


C_word qt_getrectproperty(QWidget *w, char *prop, C_word pt) 
{
  const QMetaObject *mo = w->metaObject();
  int i = mo->indexOfProperty(prop);	       
  QRect qpt = mo->property(i).read(w).toRect();
  *((int *)C_data_pointer(C_block_item(pt, 1))) = qpt.x();
  ((int *)C_data_pointer(C_block_item(pt, 1)))[ 1 ] = qpt.y();
  ((int *)C_data_pointer(C_block_item(pt, 1)))[ 2 ] = qpt.width();
  ((int *)C_data_pointer(C_block_item(pt, 1)))[ 3 ] = qpt.height();
  return pt;
}


C_word qt_getsizefproperty(QWidget *w, char *prop, C_word pt) 
{
  const QMetaObject *mo = w->metaObject();
  int i = mo->indexOfProperty(prop);	       
  QSizeF qpt = mo->property(i).read(w).toSizeF();
  *((double *)C_data_pointer(C_block_item(pt, 1))) = qpt.width();
  ((double *)C_data_pointer(C_block_item(pt, 1)))[ 1 ] = qpt.height();
  return pt;
}


C_word qt_getsizeproperty(QWidget *w, char *prop, C_word pt) 
{
  const QMetaObject *mo = w->metaObject();
  int i = mo->indexOfProperty(prop);	       
  QSize qpt = mo->property(i).read(w).toSize();
  *((int *)C_data_pointer(C_block_item(pt, 1))) = qpt.width();
  ((int *)C_data_pointer(C_block_item(pt, 1)))[ 1 ] = qpt.height();
  return pt;
}


int qt_propertytype(qtwidget w, char *prop)
{
  const QMetaObject *mo = w->metaObject();
  int i = mo->indexOfProperty(prop);

  if(i == -1) return 0;
  else {
    switch(mo->property(i).type()) {
    case QVariant::Bool: return 1;
    case QVariant::Char: return 2;
    case QVariant::Double: return 3;
    case QVariant::Int:
    case QVariant::UInt: return 4;
    case QVariant::LongLong:
    case QVariant::ULongLong: return 3;
    case QVariant::String: return 5;
    case QVariant::Pixmap: return 6;
    case QVariant::PointF: return 7;
    case QVariant::RectF: return 8;
    case QVariant::SizeF: return 9;
    case QVariant::Point: return 10;
    case QVariant::Size: return 11;
    case QVariant::Rect: return 12;
    default: return 0;
    }
  }
}


const char *qt_classname(qtobject w) { return w->metaObject()->className(); }
qtwidget qt_gl(char *name, qtwidget parent, C_word proc) { return new GLWidget(name, parent, proc); }
void qt_update(qtwidget w) { w->update(); }


qttimer qt_timer(double secs)
{
  QTimer *tm = new QTimer();
  tm->setInterval((int)(secs * 1000));
  return tm;
}


void qt_start(qttimer t) { t->start(); }
void qt_stoptimer(qttimer t) { t->stop(); }
void qt_stopsound(qtsound t) { t->stop(); }
void qt_clearlistwidget(qtwidget w) { ((QListWidget *)w)->clear(); }
void qt_addcomboboxitem(qtwidget w, char *s) { ((QComboBox *)w)->addItem(s); }
void qt_addlistwidgetitem(qtwidget w, char *s) { ((QListWidget *)w)->addItem(s); }

void qt_addtreewidgetitem(qtwidget w, char *s)
{ 
  QStringList lst = QString(s).split("|");
  ((QTreeWidget *)w)->addTopLevelItem(new QTreeWidgetItem(lst)); 
}

char *qt_listwidgetitem(qtwidget w, int i) { 
  return qstrdata(((QListWidget *)w)->item(i)->text());
}

qtsound qt_sound(char *filename) { return new QSound(filename); }
void qt_play(qtsound s) { s->play(); }


char *qt_getexistingdirectory(qtwidget p, char *cap, char *dir, int opts)
{
  return qstrdata(QFileDialog::getExistingDirectory(p, cap, dir, (QFileDialog::Option)opts)); 
}


char *qt_getopenfilename(qtwidget p, char *cap, char *dir, char *filter, int opts)
{
  return qstrdata(QFileDialog::getOpenFileName(p, cap, dir, filter, 0, (QFileDialog::Options)opts));
}


char *qt_getsavefilename(qtwidget p, char *cap, char *dir, char *filter, int opts)
{
  return qstrdata(QFileDialog::getSaveFileName(p, cap, dir, filter, 0, (QFileDialog::Options)opts));
}


void qt_setheaders(qtwidget w, char *s) { ((QTreeWidget *)w)->setHeaderLabels(QString(s).split("|")); }


char *qt_selection(qttextedit t) 
{ 
  QString txt = ((QTextEdit *)t)->textCursor().selectedText();
  txt.replace(QChar(QChar::ParagraphSeparator), '\n');
  return qstrdata(txt);
}


void qt_insert(qttextedit t, char *s)
{
  QTextEdit *te = (QTextEdit *)t;
  QTextCursor c = te->textCursor();
  c.insertText(s);
}


qtaction qt_shortcut(qtwidget w, char *key)
{
  QAction *a = new QAction(w);
  a->setShortcut(QKeySequence(key));
  return a;
}


void qt_addaction(qtwidget w, qtaction a) { ((QWidget *)w)->addAction((QAction *)a); }
void qt_removeaction(qtwidget w, qtaction a) { ((QWidget *)w)->removeAction((QAction *)a); }


int qt_charencoding(int mode)
{
  if(mode) return qt_char_encoding = mode;
  else return qt_char_encoding;
}