488 lines
15 KiB
C
488 lines
15 KiB
C
/* SPDX-License-Identifier: GPL-2.0-or-later */
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/** \file
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* \ingroup pygen
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*
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* This file defines the 'bgl' module, used for drawing text in OpenGL.
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*/
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/* Future-proof, See https://docs.python.org/3/c-api/arg.html#strings-and-buffers */
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#define PY_SSIZE_T_CLEAN
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#include "blf_py_api.h"
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#include <Python.h>
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#include "../../blenfont/BLF_api.h"
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#include "BLI_utildefines.h"
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#include "python_utildefines.h"
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PyDoc_STRVAR(py_blf_position_doc,
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".. function:: position(fontid, x, y, z)\n"
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"\n"
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" Set the position for drawing text.\n"
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"\n"
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" :arg fontid: The id of the typeface as returned by :func:`blf.load`, for default "
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"font use 0.\n"
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" :type fontid: int\n"
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" :arg x: X axis position to draw the text.\n"
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" :type x: float\n"
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" :arg y: Y axis position to draw the text.\n"
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" :type y: float\n"
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" :arg z: Z axis position to draw the text.\n"
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" :type z: float\n");
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static PyObject *py_blf_position(PyObject *UNUSED(self), PyObject *args)
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{
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int fontid;
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float x, y, z;
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if (!PyArg_ParseTuple(args, "ifff:blf.position", &fontid, &x, &y, &z)) {
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return NULL;
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}
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BLF_position(fontid, x, y, z);
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Py_RETURN_NONE;
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}
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PyDoc_STRVAR(py_blf_size_doc,
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".. function:: size(fontid, size, dpi)\n"
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"\n"
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" Set the size and dpi for drawing text.\n"
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"\n"
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" :arg fontid: The id of the typeface as returned by :func:`blf.load`, for default "
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"font use 0.\n"
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" :type fontid: int\n"
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" :arg size: Point size of the font.\n"
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" :type size: float\n"
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" :arg dpi: dots per inch value to use for drawing.\n"
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" :type dpi: int\n");
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static PyObject *py_blf_size(PyObject *UNUSED(self), PyObject *args)
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{
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int fontid, dpi;
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float size;
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if (!PyArg_ParseTuple(args, "ifi:blf.size", &fontid, &size, &dpi)) {
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return NULL;
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}
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BLF_size(fontid, size, dpi);
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Py_RETURN_NONE;
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}
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PyDoc_STRVAR(py_blf_aspect_doc,
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".. function:: aspect(fontid, aspect)\n"
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"\n"
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" Set the aspect for drawing text.\n"
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"\n"
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" :arg fontid: The id of the typeface as returned by :func:`blf.load`, for default "
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"font use 0.\n"
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" :type fontid: int\n"
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" :arg aspect: The aspect ratio for text drawing to use.\n"
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" :type aspect: float\n");
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static PyObject *py_blf_aspect(PyObject *UNUSED(self), PyObject *args)
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{
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float aspect;
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int fontid;
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if (!PyArg_ParseTuple(args, "if:blf.aspect", &fontid, &aspect)) {
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return NULL;
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}
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BLF_aspect(fontid, aspect, aspect, 1.0);
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Py_RETURN_NONE;
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}
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PyDoc_STRVAR(py_blf_color_doc,
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".. function:: color(fontid, r, g, b, a)\n"
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"\n"
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" Set the color for drawing text.\n"
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"\n"
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" :arg fontid: The id of the typeface as returned by :func:`blf.load`, for default "
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"font use 0.\n"
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" :type fontid: int\n"
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" :arg r: red channel 0.0 - 1.0.\n"
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" :type r: float\n"
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" :arg g: green channel 0.0 - 1.0.\n"
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" :type g: float\n"
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" :arg b: blue channel 0.0 - 1.0.\n"
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" :type b: float\n"
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" :arg a: alpha channel 0.0 - 1.0.\n"
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" :type a: float\n");
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static PyObject *py_blf_color(PyObject *UNUSED(self), PyObject *args)
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{
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int fontid;
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float rgba[4];
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if (!PyArg_ParseTuple(
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args, "iffff:blf.color", &fontid, &rgba[0], &rgba[1], &rgba[2], &rgba[3])) {
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return NULL;
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}
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BLF_color4fv(fontid, rgba);
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Py_RETURN_NONE;
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}
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#if BLF_BLUR_ENABLE
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PyDoc_STRVAR(py_blf_blur_doc,
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".. function:: blur(fontid, radius)\n"
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"\n"
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" Set the blur radius for drawing text.\n"
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"\n"
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" :arg fontid: The id of the typeface as returned by :func:`blf.load`, for default "
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"font use 0.\n"
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" :type fontid: int\n"
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" :arg radius: The radius for blurring text (in pixels).\n"
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" :type radius: int\n");
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static PyObject *py_blf_blur(PyObject *UNUSED(self), PyObject *args)
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{
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int blur, fontid;
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if (!PyArg_ParseTuple(args, "ii:blf.blur", &fontid, &blur)) {
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return NULL;
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}
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BLF_blur(fontid, blur);
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Py_RETURN_NONE;
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}
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#endif
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PyDoc_STRVAR(py_blf_draw_doc,
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".. function:: draw(fontid, text)\n"
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"\n"
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" Draw text in the current context.\n"
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"\n"
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" :arg fontid: The id of the typeface as returned by :func:`blf.load`, for default "
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"font use 0.\n"
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" :type fontid: int\n"
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" :arg text: the text to draw.\n"
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" :type text: string\n");
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static PyObject *py_blf_draw(PyObject *UNUSED(self), PyObject *args)
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{
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const char *text;
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Py_ssize_t text_length;
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int fontid;
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if (!PyArg_ParseTuple(args, "is#:blf.draw", &fontid, &text, &text_length)) {
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return NULL;
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}
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BLF_draw(fontid, text, (uint)text_length);
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Py_RETURN_NONE;
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}
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PyDoc_STRVAR(py_blf_dimensions_doc,
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".. function:: dimensions(fontid, text)\n"
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"\n"
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" Return the width and height of the text.\n"
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"\n"
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" :arg fontid: The id of the typeface as returned by :func:`blf.load`, for default "
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"font use 0.\n"
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" :type fontid: int\n"
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" :arg text: the text to draw.\n"
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" :type text: string\n"
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" :return: the width and height of the text.\n"
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" :rtype: tuple of 2 floats\n");
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static PyObject *py_blf_dimensions(PyObject *UNUSED(self), PyObject *args)
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{
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const char *text;
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float r_width, r_height;
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PyObject *ret;
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int fontid;
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if (!PyArg_ParseTuple(args, "is:blf.dimensions", &fontid, &text)) {
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return NULL;
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}
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BLF_width_and_height(fontid, text, INT_MAX, &r_width, &r_height);
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ret = PyTuple_New(2);
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PyTuple_SET_ITEMS(ret, PyFloat_FromDouble(r_width), PyFloat_FromDouble(r_height));
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return ret;
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}
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PyDoc_STRVAR(py_blf_clipping_doc,
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".. function:: clipping(fontid, xmin, ymin, xmax, ymax)\n"
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"\n"
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" Set the clipping, enable/disable using CLIPPING.\n"
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"\n"
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" :arg fontid: The id of the typeface as returned by :func:`blf.load`, for default "
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"font use 0.\n"
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" :type fontid: int\n"
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" :arg xmin: Clip the drawing area by these bounds.\n"
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" :type xmin: float\n"
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" :arg ymin: Clip the drawing area by these bounds.\n"
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" :type ymin: float\n"
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" :arg xmax: Clip the drawing area by these bounds.\n"
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" :type xmax: float\n"
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" :arg ymax: Clip the drawing area by these bounds.\n"
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" :type ymax: float\n");
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static PyObject *py_blf_clipping(PyObject *UNUSED(self), PyObject *args)
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{
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float xmin, ymin, xmax, ymax;
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int fontid;
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if (!PyArg_ParseTuple(args, "iffff:blf.clipping", &fontid, &xmin, &ymin, &xmax, &ymax)) {
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return NULL;
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}
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BLF_clipping(fontid, xmin, ymin, xmax, ymax);
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Py_RETURN_NONE;
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}
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PyDoc_STRVAR(py_blf_word_wrap_doc,
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".. function:: word_wrap(fontid, wrap_width)\n"
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"\n"
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" Set the wrap width, enable/disable using WORD_WRAP.\n"
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"\n"
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" :arg fontid: The id of the typeface as returned by :func:`blf.load`, for default "
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"font use 0.\n"
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" :type fontid: int\n"
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" :arg wrap_width: The width (in pixels) to wrap words at.\n"
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" :type wrap_width: int\n");
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static PyObject *py_blf_word_wrap(PyObject *UNUSED(self), PyObject *args)
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{
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int wrap_width;
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int fontid;
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if (!PyArg_ParseTuple(args, "ii:blf.word_wrap", &fontid, &wrap_width)) {
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return NULL;
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}
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BLF_wordwrap(fontid, wrap_width);
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Py_RETURN_NONE;
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}
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PyDoc_STRVAR(py_blf_disable_doc,
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".. function:: disable(fontid, option)\n"
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"\n"
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" Disable option.\n"
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"\n"
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" :arg fontid: The id of the typeface as returned by :func:`blf.load`, for default "
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"font use 0.\n"
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" :type fontid: int\n"
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" :arg option: One of ROTATION, CLIPPING, SHADOW or KERNING_DEFAULT.\n"
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" :type option: int\n");
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static PyObject *py_blf_disable(PyObject *UNUSED(self), PyObject *args)
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{
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int option, fontid;
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if (!PyArg_ParseTuple(args, "ii:blf.disable", &fontid, &option)) {
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return NULL;
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}
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BLF_disable(fontid, option);
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Py_RETURN_NONE;
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}
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PyDoc_STRVAR(py_blf_enable_doc,
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".. function:: enable(fontid, option)\n"
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"\n"
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" Enable option.\n"
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"\n"
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" :arg fontid: The id of the typeface as returned by :func:`blf.load`, for default "
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"font use 0.\n"
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" :type fontid: int\n"
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" :arg option: One of ROTATION, CLIPPING, SHADOW or KERNING_DEFAULT.\n"
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" :type option: int\n");
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static PyObject *py_blf_enable(PyObject *UNUSED(self), PyObject *args)
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{
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int option, fontid;
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if (!PyArg_ParseTuple(args, "ii:blf.enable", &fontid, &option)) {
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return NULL;
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}
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BLF_enable(fontid, option);
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Py_RETURN_NONE;
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}
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PyDoc_STRVAR(py_blf_rotation_doc,
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".. function:: rotation(fontid, angle)\n"
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"\n"
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" Set the text rotation angle, enable/disable using ROTATION.\n"
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"\n"
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" :arg fontid: The id of the typeface as returned by :func:`blf.load`, for default "
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"font use 0.\n"
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" :type fontid: int\n"
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" :arg angle: The angle for text drawing to use.\n"
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" :type angle: float\n");
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static PyObject *py_blf_rotation(PyObject *UNUSED(self), PyObject *args)
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{
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float angle;
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int fontid;
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if (!PyArg_ParseTuple(args, "if:blf.rotation", &fontid, &angle)) {
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return NULL;
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}
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BLF_rotation(fontid, angle);
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Py_RETURN_NONE;
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}
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PyDoc_STRVAR(py_blf_shadow_doc,
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".. function:: shadow(fontid, level, r, g, b, a)\n"
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"\n"
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" Shadow options, enable/disable using SHADOW .\n"
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"\n"
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" :arg fontid: The id of the typeface as returned by :func:`blf.load`, for default "
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"font use 0.\n"
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" :type fontid: int\n"
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" :arg level: The blur level, can be 3, 5 or 0.\n"
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" :type level: int\n"
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" :arg r: Shadow color (red channel 0.0 - 1.0).\n"
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" :type r: float\n"
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" :arg g: Shadow color (green channel 0.0 - 1.0).\n"
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" :type g: float\n"
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" :arg b: Shadow color (blue channel 0.0 - 1.0).\n"
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" :type b: float\n"
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" :arg a: Shadow color (alpha channel 0.0 - 1.0).\n"
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" :type a: float\n");
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static PyObject *py_blf_shadow(PyObject *UNUSED(self), PyObject *args)
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{
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int level, fontid;
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float rgba[4];
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if (!PyArg_ParseTuple(
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args, "iiffff:blf.shadow", &fontid, &level, &rgba[0], &rgba[1], &rgba[2], &rgba[3])) {
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return NULL;
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}
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if (!ELEM(level, 0, 3, 5)) {
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PyErr_SetString(PyExc_TypeError, "blf.shadow expected arg to be in (0, 3, 5)");
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return NULL;
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}
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BLF_shadow(fontid, level, rgba);
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Py_RETURN_NONE;
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}
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PyDoc_STRVAR(py_blf_shadow_offset_doc,
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".. function:: shadow_offset(fontid, x, y)\n"
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"\n"
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" Set the offset for shadow text.\n"
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"\n"
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" :arg fontid: The id of the typeface as returned by :func:`blf.load`, for default "
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"font use 0.\n"
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" :type fontid: int\n"
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" :arg x: Vertical shadow offset value in pixels.\n"
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" :type x: float\n"
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" :arg y: Horizontal shadow offset value in pixels.\n"
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" :type y: float\n");
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static PyObject *py_blf_shadow_offset(PyObject *UNUSED(self), PyObject *args)
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{
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int x, y, fontid;
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if (!PyArg_ParseTuple(args, "iii:blf.shadow_offset", &fontid, &x, &y)) {
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return NULL;
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}
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BLF_shadow_offset(fontid, x, y);
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Py_RETURN_NONE;
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}
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PyDoc_STRVAR(py_blf_load_doc,
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".. function:: load(filepath)\n"
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"\n"
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" Load a new font.\n"
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"\n"
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" :arg filepath: the filepath of the font.\n"
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" :type filepath: string\n"
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" :return: the new font's fontid or -1 if there was an error.\n"
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" :rtype: integer\n");
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static PyObject *py_blf_load(PyObject *UNUSED(self), PyObject *args)
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{
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const char *filepath;
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if (!PyArg_ParseTuple(args, "s:blf.load", &filepath)) {
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return NULL;
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}
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return PyLong_FromLong(BLF_load(filepath));
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}
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PyDoc_STRVAR(py_blf_unload_doc,
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".. function:: unload(filepath)\n"
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"\n"
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" Unload an existing font.\n"
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"\n"
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" :arg filepath: the filepath of the font.\n"
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" :type filepath: string\n");
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static PyObject *py_blf_unload(PyObject *UNUSED(self), PyObject *args)
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{
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const char *filepath;
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if (!PyArg_ParseTuple(args, "s:blf.unload", &filepath)) {
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return NULL;
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}
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BLF_unload(filepath);
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Py_RETURN_NONE;
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}
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/*----------------------------MODULE INIT-------------------------*/
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static PyMethodDef BLF_methods[] = {
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{"aspect", (PyCFunction)py_blf_aspect, METH_VARARGS, py_blf_aspect_doc},
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#if BLF_BLUR_ENABLE
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{"blur", (PyCFunction)py_blf_blur, METH_VARARGS, py_blf_blur_doc},
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#endif
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{"clipping", (PyCFunction)py_blf_clipping, METH_VARARGS, py_blf_clipping_doc},
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{"word_wrap", (PyCFunction)py_blf_word_wrap, METH_VARARGS, py_blf_word_wrap_doc},
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{"disable", (PyCFunction)py_blf_disable, METH_VARARGS, py_blf_disable_doc},
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{"dimensions", (PyCFunction)py_blf_dimensions, METH_VARARGS, py_blf_dimensions_doc},
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{"draw", (PyCFunction)py_blf_draw, METH_VARARGS, py_blf_draw_doc},
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{"enable", (PyCFunction)py_blf_enable, METH_VARARGS, py_blf_enable_doc},
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{"position", (PyCFunction)py_blf_position, METH_VARARGS, py_blf_position_doc},
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{"rotation", (PyCFunction)py_blf_rotation, METH_VARARGS, py_blf_rotation_doc},
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{"shadow", (PyCFunction)py_blf_shadow, METH_VARARGS, py_blf_shadow_doc},
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{"shadow_offset", (PyCFunction)py_blf_shadow_offset, METH_VARARGS, py_blf_shadow_offset_doc},
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{"size", (PyCFunction)py_blf_size, METH_VARARGS, py_blf_size_doc},
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{"color", (PyCFunction)py_blf_color, METH_VARARGS, py_blf_color_doc},
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{"load", (PyCFunction)py_blf_load, METH_VARARGS, py_blf_load_doc},
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{"unload", (PyCFunction)py_blf_unload, METH_VARARGS, py_blf_unload_doc},
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{NULL, NULL, 0, NULL},
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};
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PyDoc_STRVAR(BLF_doc, "This module provides access to Blender's text drawing functions.");
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static struct PyModuleDef BLF_module_def = {
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PyModuleDef_HEAD_INIT,
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"blf", /* m_name */
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BLF_doc, /* m_doc */
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0, /* m_size */
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BLF_methods, /* m_methods */
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NULL, /* m_reload */
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NULL, /* m_traverse */
|
|
NULL, /* m_clear */
|
|
NULL, /* m_free */
|
|
};
|
|
|
|
PyObject *BPyInit_blf(void)
|
|
{
|
|
PyObject *submodule;
|
|
|
|
submodule = PyModule_Create(&BLF_module_def);
|
|
|
|
PyModule_AddIntConstant(submodule, "ROTATION", BLF_ROTATION);
|
|
PyModule_AddIntConstant(submodule, "CLIPPING", BLF_CLIPPING);
|
|
PyModule_AddIntConstant(submodule, "SHADOW", BLF_SHADOW);
|
|
PyModule_AddIntConstant(submodule, "WORD_WRAP", BLF_WORD_WRAP);
|
|
PyModule_AddIntConstant(submodule, "MONOCHROME", BLF_MONOCHROME);
|
|
|
|
return submodule;
|
|
}
|