Added methods getdata() and putdata() to obtain the data in a bitmap.

jackjansen · jackjansen · commit 484be6152fc7 · 2000-03-03T16:01:11.000Z
diff --git a/Mac/Modules/qd/Qdmodule.c b/Mac/Modules/qd/Qdmodule.c
@@ -297,7 +297,45 @@ static void BMObj_dealloc(self)
 	PyMem_DEL(self);
 }
 
+static PyObject *BMObj_getdata(_self, _args)
+	BitMapObject *_self;
+	PyObject *_args;
+{
+	PyObject *_res = NULL;
+
+	int from, length;
+	char *cp;
+
+	if ( !PyArg_ParseTuple(_args, "ii", &from, &length) )
+		return NULL;
+	cp = _self->ob_itself->baseAddr+from;
+	return PyString_FromStringAndSize(cp, length);
+
+}
+
+static PyObject *BMObj_putdata(_self, _args)
+	BitMapObject *_self;
+	PyObject *_args;
+{
+	PyObject *_res = NULL;
+
+	int from, length;
+	char *cp, *icp;
+
+	if ( !PyArg_ParseTuple(_args, "is#", &from, &icp, &length) )
+		return NULL;
+	cp = _self->ob_itself->baseAddr+from;
+	memcpy(cp, icp, length);
+	Py_INCREF(Py_None);
+	return Py_None;
+
+}
+
 static PyMethodDef BMObj_methods[] = {
+	{"getdata", (PyCFunction)BMObj_getdata, 1,
+	 "(int start, int size) -> string. Return bytes from the bitmap"},
+	{"putdata", (PyCFunction)BMObj_putdata, 1,
+	 "(int start, string data). Store bytes into the bitmap"},
 	{NULL, NULL, 0}
 };
 
diff --git a/Mac/Modules/qd/qdsupport.py b/Mac/Modules/qd/qdsupport.py
@@ -310,6 +310,36 @@ def outputGetattrHook(self):
 ##for f in r_methods: r_object.add(f)
 ##for f in po_methods: po_object.add(f)
 
+# Manual generator: get data out of a bitmap
+getdata_body = """
+int from, length;
+char *cp;
+
+if ( !PyArg_ParseTuple(_args, "ii", &from, &length) )
+	return NULL;
+cp = _self->ob_itself->baseAddr+from;
+return PyString_FromStringAndSize(cp, length);
+"""
+f = ManualGenerator("getdata", getdata_body)
+f.docstring = lambda: """(int start, int size) -> string. Return bytes from the bitmap"""
+bm_object.add(f)
+
+# Manual generator: store data in a bitmap
+putdata_body = """
+int from, length;
+char *cp, *icp;
+
+if ( !PyArg_ParseTuple(_args, "is#", &from, &icp, &length) )
+	return NULL;
+cp = _self->ob_itself->baseAddr+from;
+memcpy(cp, icp, length);
+Py_INCREF(Py_None);
+return Py_None;
+"""
+f = ManualGenerator("putdata", putdata_body)
+f.docstring = lambda: """(int start, string data). Store bytes into the bitmap"""
+bm_object.add(f)
+
 #
 # We manually generate a routine to create a BitMap from python data.
 #
