diff options
author | Michel Selten <michel@mselten.demon.nl> | 2003-03-25 22:16:13 +0300 |
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committer | Michel Selten <michel@mselten.demon.nl> | 2003-03-25 22:16:13 +0300 |
commit | 92d292f8d39a255b3ca2cc57ce7cdf1388f898ed (patch) | |
tree | 1da667aebe78114698ec192d13347520bf872dd4 /source/blender | |
parent | 7c5d4a12d1f04b0d2e128878f8a2ea9905de02f2 (diff) |
* Added the Camera module.
This one has been implemented by Willian (IanWill).
Diffstat (limited to 'source/blender')
-rw-r--r-- | source/blender/python/api2_2x/Blender.c | 1 | ||||
-rw-r--r-- | source/blender/python/api2_2x/Camera.c | 289 | ||||
-rw-r--r-- | source/blender/python/api2_2x/modules.h | 2 |
3 files changed, 292 insertions, 0 deletions
diff --git a/source/blender/python/api2_2x/Blender.c b/source/blender/python/api2_2x/Blender.c index d099d9ba3f7..a258e31be2b 100644 --- a/source/blender/python/api2_2x/Blender.c +++ b/source/blender/python/api2_2x/Blender.c @@ -241,5 +241,6 @@ void initBlender (void) dict = PyModule_GetDict (module); g_blenderdict = dict; PyDict_SetItemString (dict, "Object", initObject()); + PyDict_SetItemString (dict, "Camera", initCamera()); } diff --git a/source/blender/python/api2_2x/Camera.c b/source/blender/python/api2_2x/Camera.c new file mode 100644 index 00000000000..20d74ea3c18 --- /dev/null +++ b/source/blender/python/api2_2x/Camera.c @@ -0,0 +1,289 @@ +/* TODO: 'print dir(CameraObject)' doesn't work, attribs are not recognized; + * how to assign methods to objects? PyMethod_New() ? Maybe separate + * CameraModule and Camera; found: check Extending ... section 2.2.3 + * correctly handle references; + * Make all functions but module init's static ? + * 'print Blender.Camera.__doc__' doesn't work (still gives 'None')*/ + +#include <Python.h> +#include <stdio.h> + +#include <BKE_main.h> +#include <BKE_global.h> +#include <BKE_object.h> +#include <DNA_camera_types.h> + +#include "gen_utils.h" +#include "modules.h" + +/*****************************************************************************/ +/* Python API function prototypes for the Camera module. */ +/******************************************************************************/ +PyObject *Camera_New (PyObject *self, PyObject *args, PyObject *keywords); +PyObject *Camera_Get (PyObject *self, PyObject *args); + +/*****************************************************************************/ +/* The following string definitions are used for documentation strings. */ +/* In Python these will be written to the console when doing a */ +/* Blender.Camera.__doc__ */ +/*****************************************************************************/ +char CameraModule_doc[] = +"The Blender Camera module\n\n\ +This module provides access to **Camera** objects in Blender\n\n\ +Example::\n\n\ + from Blender import Camera, Object, Scene\n\ + c = Camera.New('ortho') # create new ortho camera data\n\ + c.lens = 35.0 # set lens value\n\ + cur = Scene.getCurrent() # get current Scene\n\ + ob = Object.New('Camera') # make camera object\n\ + ob.link(c) # link camera data with this object\n\ + cur.link(ob) # link object into scene\n\ + cur.setCurrentCamera(ob) # make this camera the active\n"; + +char Camera_New_doc[] = +"(type) - returns a new Camera object of type 'type', \ +which can be 'persp' or 'ortho'.\n\ +() - returns a new Camera object of type 'persp'."; + +char Camera_Get_doc[] = +"(name) - return the camera with the name 'name', \ +returns None if not found.\n If 'name' is not specified, \ +it returns a list of all cameras in the\ncurrent scene."; + +/*****************************************************************************/ +/* Python BlenderCamera structure definition. */ +/*****************************************************************************/ +typedef struct { + PyObject_HEAD + struct Camera *camera; +} BlenCamera; + +/*****************************************************************************/ +/* PythonTypeCamera callback function prototypes */ +/*****************************************************************************/ +void CameraDeAlloc (BlenCamera *cam); +PyObject* CameraGetAttr (BlenCamera *cam, char *name); +int CameraSetAttr (BlenCamera *cam, char *name, PyObject *v); +PyObject* CameraRepr (BlenCamera *cam); + +/*****************************************************************************/ +/* Python TypeCamera structure definition. */ +/*****************************************************************************/ +static PyTypeObject camera_type = +{ + PyObject_HEAD_INIT(&PyType_Type) + 0, /* ob_size */ + "Camera", /* tp_name */ + sizeof (BlenCamera), /* tp_basicsize */ + 0, /* tp_itemsize */ + /* methods */ + (destructor)CameraDeAlloc, /* tp_dealloc */ + 0, /* tp_print */ + (getattrfunc)CameraGetAttr, /* tp_getattr */ + (setattrfunc)CameraSetAttr, /* tp_setattr */ + 0, /* tp_compare */ + (reprfunc)CameraRepr, /* tp_repr */ + 0, /* tp_as_number */ + 0, /* tp_as_sequence */ + 0, /* tp_as_mapping */ + 0, /* tp_as_hash */ + 0, + 0, + 0, + 0, + 0, + 0, + CameraModule_doc, /* tp_doc Isn't working for some reason */ + 0, +}; + +/*****************************************************************************/ +/* Python method structure definition. */ +/*****************************************************************************/ +struct PyMethodDef Camera_methods[] = { + {"New",(PyCFunction)Camera_New, METH_VARARGS|METH_KEYWORDS, Camera_New_doc}, + {"Get", Camera_Get, METH_VARARGS, Camera_Get_doc}, + {"get", Camera_Get, METH_VARARGS, Camera_Get_doc}, + {NULL, NULL, 0, NULL} +}; + +/*****************************************************************************/ +/* Function: Camera_New */ +/* Python equivalent: Blender.Camera.New */ +/*****************************************************************************/ +PyObject *Camera_New(PyObject *self, PyObject *args, PyObject *keywords) +{ + char *type_str = "persp"; /* "persp" is type 0, "ortho" is type 1 */ + static char *kwlist[] = {"type_str", NULL}; + Camera * cam; + BlenCamera * blen_camera; + + printf ("In Camera_New()\n"); + + if (!PyArg_ParseTupleAndKeywords(args, keywords, "|s", kwlist, &type_str)) + /* We expected a string (or nothing) as an argument, but we didn't get one. */ + return (PythonReturnErrorObject (PyExc_AttributeError, + "expected string (or empty) argument")); + + cam = add_camera(); + cam->id.us = 0; /* new camera: no user yet */ + + if (StringEqual (type_str, "persp")) + cam->type = 0; + else if (StringEqual (type_str, "ortho")) + cam->type = 1; + else + return (PythonReturnErrorObject (PyExc_AttributeError, + "unknown camera type")); + + blen_camera = (BlenCamera*)PyObject_NEW(BlenCamera, &camera_type); + blen_camera->camera = cam; + + return ((PyObject*)blen_camera); +} + +/*****************************************************************************/ +/* Function: Camera_Get */ +/* Python equivalent: Blender.Camera.Get */ +/*****************************************************************************/ +PyObject *Camera_Get(PyObject *self, PyObject *args) +{ + char * name; + struct Camera * cam_iter; + BlenCamera * blen_camera; + + printf ("In Camera_Get()\n"); + if (!PyArg_ParseTuple(args, "s", &name)) + { + return (PythonReturnErrorObject (PyExc_AttributeError, + "expected string argument")); + } + + /* Use the name to search for the camera requested. */ + blen_camera = NULL; + cam_iter = G.main->camera.first; + while ((cam_iter) && (blen_camera == NULL)) + { + if (StringEqual (name, GetIdName (&(cam_iter->id)))) + { + blen_camera = (BlenCamera*)PyObject_NEW(BlenCamera, &camera_type); + blen_camera->camera = cam_iter; + } + cam_iter = cam_iter->id.next; + } + + if (blen_camera == NULL) + { + /* No camera exists with the name specified in the argument name. */ + char error_msg[256]; + sprintf(error_msg, "camera \"%s\" not found", name); + return (PythonReturnErrorObject (PyExc_AttributeError, error_msg)); + } + + return ((PyObject*)blen_camera); +} + +/*****************************************************************************/ +/* Function: initCamera */ +/*****************************************************************************/ +PyObject *initCamera (void) +{ + PyObject * module; + + printf ("In initCamera()\n"); + + module = Py_InitModule("Camera", Camera_methods); + + return (module); +} + +/*****************************************************************************/ +/* Function: CameraCreatePyObject */ +/* Description: This function will create a new BlenCamera from an existing */ +/* Camera structure. */ +/*****************************************************************************/ +PyObject* CameraCreatePyObject (struct Camera *cam) +{ + BlenCamera * blen_camera; + + printf ("In CameraCreatePyObject\n"); + + blen_camera = (BlenCamera*)PyObject_NEW(BlenCamera, &camera_type); + + blen_camera->camera = cam; + return ((PyObject*)blen_camera); +} + +/*****************************************************************************/ +/* Function: CameraDeAlloc */ +/* Description: This is a callback function for the BlenCamera type. It is */ +/* the destructor function. */ +/*****************************************************************************/ +void CameraDeAlloc (BlenCamera *cam) +{ + PyObject_DEL (cam); +} + +/*****************************************************************************/ +/* Function: CameraGetAttr */ +/* Description: This is a callback function for the BlenCamera type. It is */ +/* the function that retrieves any value from Blender and */ +/* passes it to Python. */ +/*****************************************************************************/ +PyObject* CameraGetAttr (BlenCamera *cam, char *name) +{ + struct Camera * camera; + + camera = cam->camera; + if (StringEqual (name, "lens")) + return (PyFloat_FromDouble(camera->lens)); + if (StringEqual (name, "clipStart")) + return (PyFloat_FromDouble(camera->clipsta)); + if (StringEqual (name, "clipEnd")) + return (PyFloat_FromDouble(camera->clipend)); + if (StringEqual (name, "type")) + return (PyInt_FromLong(camera->type)); + if (StringEqual (name, "mode")) + return (PyInt_FromLong(camera->flag)); + + printf ("Unknown variable.\n"); + Py_INCREF (Py_None); + return (Py_None); +} + +/*****************************************************************************/ +/* Function: CameraSetAttr */ +/* Description: This is a callback function for the BlenCamera type. It is */ +/* the function that retrieves any value from Python and sets */ +/* it accordingly in Blender. */ +/*****************************************************************************/ +int CameraSetAttr (BlenCamera *cam, char *name, PyObject *value) +{ + struct Camera * camera; + + camera = cam->camera; + if (StringEqual (name, "lens")) + return (!PyArg_Parse (value, "f", &(camera->lens))); + if (StringEqual (name, "clipStart")) + return (!PyArg_Parse (value, "f", &(camera->clipsta))); + if (StringEqual (name, "clipEnd")) + return (!PyArg_Parse (value, "f", &(camera->clipend))); + if (StringEqual (name, "type")) + return (!PyArg_Parse (value, "i", &(camera->type))); + if (StringEqual (name, "mode")) + return (!PyArg_Parse (value, "i", &(camera->flag))); + + printf ("Unknown variable.\n"); + return (0); +} +/*****************************************************************************/ +/* Function: CameraRepr */ +/* Description: This is a callback function for the BlenCamera type. It */ +/* builds a meaninful string to represent camera objects. */ +/*****************************************************************************/ +PyObject* CameraRepr (BlenCamera *self) +{ + static char s[256]; + sprintf (s, "[Camera \"%s\"]", self->camera->id.name+2); + return Py_BuildValue("s", s); +} diff --git a/source/blender/python/api2_2x/modules.h b/source/blender/python/api2_2x/modules.h index 575a142a552..ce6c4be6bf3 100644 --- a/source/blender/python/api2_2x/modules.h +++ b/source/blender/python/api2_2x/modules.h @@ -40,3 +40,5 @@ PyObject *g_blenderdict; void initBlender (void); PyObject* initObject (void); PyObject* ObjectCreatePyObject (struct Object *obj); +PyObject* initCamera (void); +PyObject* CameraCreatePyObject (struct Camera *cam); |