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/*******************************************************************************
XIGetProperty/XIChangeProperty wrapper
Copyright © 2013 Alexandr Mezin <[email protected]>
Copyright © 2024 Mavridis Philippe <[email protected]>
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, see <https://www.gnu.org/licenses/>.
*******************************************************************************/
#ifndef __XI_PROPERTY_H__
#define __XI_PROPERTY_H__
// TQt
#include <tqobject.h> // tqt_xdisplay()
#include <tqvariant.h>
// X11
#include <X11/Xatom.h>
class XIProperty
{
public:
XIProperty()
: device(-1),
type(0),
format(0),
num_items(0),
data(0),
b(nullptr),
i(nullptr),
f(nullptr)
{}
XIProperty(int device, TQCString propertyName)
: device(device),
type(0),
format(0),
num_items(0),
data(0),
b(nullptr),
i(nullptr),
f(nullptr)
{
Display *disp = tqt_xdisplay();
property = XInternAtom(disp, propertyName, true);
unsigned char *ptr = nullptr;
unsigned long bytes_after;
XIGetProperty(disp, device, property, 0, 1000, False, AnyPropertyType,
&type, &format, &num_items, &bytes_after, &ptr);
data = ptr;
if (format == CHAR_BIT && type == XA_INTEGER)
{
b = reinterpret_cast<char *>(data);
}
if (format == sizeof(int) * CHAR_BIT
&& (type == XA_INTEGER || type == XA_CARDINAL))
{
i = reinterpret_cast<int *>(data);
}
Atom floatType = XInternAtom(disp, "FLOAT", true);
if (format == sizeof(float) * CHAR_BIT && floatType && type == floatType)
{
f = reinterpret_cast<float *>(data);
}
}
~XIProperty()
{
XFree(data);
}
TQVariant operator[](int offset)
{
if (offset >= num_items) return TQVariant();
if (b) return TQVariant(static_cast<int>(b[offset]));
if (i) return TQVariant(i[offset]);
if (f) return TQVariant(f[offset]);
return TQVariant();
}
void set()
{
XIChangeProperty(tqt_xdisplay(), device, property, type, format, XIPropModeReplace,
data, num_items);
}
int count() { return num_items; }
public:
char *b;
int *i;
float *f;
private:
Atom property, type;
int device, format;
unsigned long num_items;
unsigned char *data;
};
#endif // __XI_PROPERTY_H__
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