SCA_PythonMouse.cpp

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/*
 * $Id: SCA_PythonMouse.cpp 35169 2011-02-25 13:32:11Z jesterking $
 *
 * ***** BEGIN GPL LICENSE BLOCK *****
 *
 * 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, write to the Free Software Foundation,
 * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
 *
 * Contributor(s): none yet.
 *
 * ***** END GPL LICENSE BLOCK *****
 */

#include "SCA_PythonMouse.h"
#include "SCA_IInputDevice.h"
#include "RAS_ICanvas.h"

/* ------------------------------------------------------------------------- */
/* Native functions                                                          */
/* ------------------------------------------------------------------------- */

SCA_PythonMouse::SCA_PythonMouse(SCA_IInputDevice* mouse, RAS_ICanvas* canvas)
: PyObjectPlus(),
m_mouse(mouse),
m_canvas(canvas)
{
#ifdef WITH_PYTHON
        m_event_dict = PyDict_New();
#endif
}

SCA_PythonMouse::~SCA_PythonMouse()
{
#ifdef WITH_PYTHON
        PyDict_Clear(m_event_dict);
        Py_DECREF(m_event_dict);
#endif
}

#ifdef WITH_PYTHON

/* ------------------------------------------------------------------------- */
/* Python functions                                                          */
/* ------------------------------------------------------------------------- */

/* Integration hooks ------------------------------------------------------- */
PyTypeObject SCA_PythonMouse::Type = {
        PyVarObject_HEAD_INIT(NULL, 0)
        "SCA_PythonMouse",
        sizeof(PyObjectPlus_Proxy),
        0,
        py_base_dealloc,
        0,
        0,
        0,
        0,
        py_base_repr,
        0,0,0,0,0,0,0,0,0,
        Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE,
        0,0,0,0,0,0,0,
        Methods,
        0,
        0,
        &PyObjectPlus::Type,
        0,0,0,0,0,0,
        py_base_new
};

PyMethodDef SCA_PythonMouse::Methods[] = {
        {NULL,NULL} //Sentinel
};

PyAttributeDef SCA_PythonMouse::Attributes[] = {
        KX_PYATTRIBUTE_RO_FUNCTION("events", SCA_PythonMouse, pyattr_get_events),
        KX_PYATTRIBUTE_RW_FUNCTION("position", SCA_PythonMouse, pyattr_get_position, pyattr_set_position),
        KX_PYATTRIBUTE_RW_FUNCTION("visible", SCA_PythonMouse, pyattr_get_visible, pyattr_set_visible),
        { NULL }        //Sentinel
};      

PyObject* SCA_PythonMouse::pyattr_get_events(void *self_v, const KX_PYATTRIBUTE_DEF *attrdef)
{
        SCA_PythonMouse* self = static_cast<SCA_PythonMouse*>(self_v);
        
        for (int i=SCA_IInputDevice::KX_BEGINMOUSE; i<=SCA_IInputDevice::KX_ENDMOUSE; i++)
        {
                const SCA_InputEvent & inevent = self->m_mouse->GetEventValue((SCA_IInputDevice::KX_EnumInputs)i);
                
                PyDict_SetItem(self->m_event_dict, PyLong_FromSsize_t(i), PyLong_FromSsize_t(inevent.m_status));
        }
        Py_INCREF(self->m_event_dict);
        return self->m_event_dict;
}


PyObject* SCA_PythonMouse::pyattr_get_position(void *self_v, const KX_PYATTRIBUTE_DEF *attrdef)
{
        SCA_PythonMouse* self = static_cast<SCA_PythonMouse*>(self_v);
        const SCA_InputEvent & xevent = self->m_mouse->GetEventValue(SCA_IInputDevice::KX_MOUSEX);
        const SCA_InputEvent & yevent = self->m_mouse->GetEventValue(SCA_IInputDevice::KX_MOUSEY);

        float x_coord, y_coord;

        x_coord = self->m_canvas->GetMouseNormalizedX(xevent.m_eventval);
        y_coord = self->m_canvas->GetMouseNormalizedY(yevent.m_eventval);

        PyObject* ret = PyTuple_New(2);

        PyTuple_SET_ITEM(ret, 0, PyFloat_FromDouble(x_coord));
        PyTuple_SET_ITEM(ret, 1, PyFloat_FromDouble(y_coord));

        return ret;
}

int SCA_PythonMouse::pyattr_set_position(void *self_v, const KX_PYATTRIBUTE_DEF *attrdef, PyObject *value)
{
        SCA_PythonMouse* self = static_cast<SCA_PythonMouse*>(self_v);
        int x, y;
        float pyx, pyy;
        if (!PyArg_ParseTuple(value, "ff:position", &pyx, &pyy))
                return PY_SET_ATTR_FAIL;

        x = (int)(pyx*self->m_canvas->GetWidth());
        y = (int)(pyy*self->m_canvas->GetHeight());

        self->m_canvas->SetMousePosition(x, y);

        return PY_SET_ATTR_SUCCESS;
}

PyObject* SCA_PythonMouse::pyattr_get_visible(void *self_v, const KX_PYATTRIBUTE_DEF *attrdef)
{
        SCA_PythonMouse* self = static_cast<SCA_PythonMouse*>(self_v);

        int visible;

        if (self->m_canvas->GetMouseState() == RAS_ICanvas::MOUSE_INVISIBLE)
                visible = 0;
        else
                visible = 1;

        return PyBool_FromLong(visible);
}

int SCA_PythonMouse::pyattr_set_visible(void *self_v, const KX_PYATTRIBUTE_DEF *attrdef, PyObject *value)
{
        SCA_PythonMouse* self = static_cast<SCA_PythonMouse*>(self_v);

        int visible = PyObject_IsTrue(value);

        if (visible == -1)
        {
                PyErr_SetString(PyExc_AttributeError, "SCA_PythonMouse.visible = bool: SCA_PythonMouse, expected True or False");
                return PY_SET_ATTR_FAIL;
        }

        if (visible)
                self->m_canvas->SetMouseState(RAS_ICanvas::MOUSE_NORMAL);
        else
                self->m_canvas->SetMouseState(RAS_ICanvas::MOUSE_INVISIBLE);

        return PY_SET_ATTR_SUCCESS;
}

#endif