/*!
* \brief Draw polyline
*
* Optional on the PyDia side. If not implemented fallback to base class member.
*
* \memberof _DiaPyRenderer
*/
static void
draw_polyline(DiaRenderer *renderer,
Point *points, int num_points,
Color *line_colour)
{
PyObject *func, *res, *arg, *self = PYDIA_RENDERER (renderer);
func = PyObject_GetAttrString (self, "draw_polyline");
if (func && PyCallable_Check(func)) {
PyObject *optt = PyDiaPointTuple_New (points, num_points);
PyObject *ocolor = PyDiaColor_New (line_colour);
Py_INCREF(self);
Py_INCREF(func);
arg = Py_BuildValue ("(OO)", optt, ocolor);
if (arg) {
res = PyEval_CallObject (func, arg);
ON_RES(res, FALSE);
}
Py_XDECREF (arg);
Py_XDECREF (optt);
Py_XDECREF (ocolor);
Py_DECREF(func);
Py_DECREF(self);
}
else { /* member optional */
PyErr_Clear();
/* XXX: implementing the same fallback as DiaRenderer */
DIA_RENDERER_CLASS (parent_class)->draw_polyline (renderer, points, num_points, line_colour);
}
}
/* kept for backward compatibility, not any longer in the renderer interface */
static void
fill_bezier(DiaRenderer *renderer,
BezPoint *points, /* Last point must be same as first point */
int num_points,
Color *colour)
{
PyObject *func, *res, *arg, *self = PYDIA_RENDERER (renderer);
func = PyObject_GetAttrString (self, "fill_bezier");
if (func && PyCallable_Check(func)) {
PyObject *obt = PyDiaBezPointTuple_New (points, num_points);
PyObject *ocolor = PyDiaColor_New (colour);
Py_INCREF(self);
Py_INCREF(func);
arg = Py_BuildValue ("(OO)", obt, ocolor);
if (arg) {
res = PyEval_CallObject (func, arg);
ON_RES(res, FALSE);
}
Py_XDECREF (arg);
Py_XDECREF (obt);
Py_XDECREF (ocolor);
Py_DECREF(func);
Py_DECREF(self);
}
else { /* member optional */
PyErr_Clear();
/* XXX: implementing the same fallback as DiaRenderer would do */
DIA_RENDERER_CLASS (parent_class)->draw_beziergon (renderer, points, num_points, colour, NULL);
}
}
/*!
* \brief Draw line
*
* Not optional on the PyDia side. If not implemented a runtime warning
* will be generated when called.
*
* \memberof _DiaPyRenderer
*/
static void
draw_line(DiaRenderer *renderer,
Point *start, Point *end,
Color *line_colour)
{
PyObject *func, *res, *arg, *self = PYDIA_RENDERER (renderer);
func = PyObject_GetAttrString (self, "draw_line");
if (func && PyCallable_Check(func)) {
PyObject *ostart = PyDiaPoint_New (start);
PyObject *oend = PyDiaPoint_New (end);
PyObject *ocolor = PyDiaColor_New (line_colour);
Py_INCREF(self);
Py_INCREF(func);
arg = Py_BuildValue ("(OOO)", ostart, oend, ocolor);
if (arg) {
res = PyEval_CallObject (func, arg);
ON_RES(res, FALSE);
}
Py_XDECREF (arg);
Py_XDECREF (ostart);
Py_XDECREF (oend);
Py_XDECREF (ocolor);
Py_DECREF(func);
Py_DECREF(self);
}
else { /* member not optional */
gchar *msg = g_strdup_printf ("%s.draw_line() implmentation missing.",
G_OBJECT_CLASS_NAME (G_OBJECT_GET_CLASS (renderer)));
PyErr_Clear();
PyErr_Warn (PyExc_RuntimeWarning, msg);
g_free (msg);
}
}
/*!
* \brief Fill and/or stroke a closed path
* \memberof _DiaPyRenderer
*/
static void
draw_beziergon (DiaRenderer *renderer,
BezPoint *points,
int num_points,
Color *fill,
Color *stroke)
{
PyObject *func, *res, *arg, *self = PYDIA_RENDERER (renderer);
func = PyObject_GetAttrString (self, "draw_beziergon");
if (func && PyCallable_Check(func)) {
PyObject *obt = PyDiaBezPointTuple_New (points, num_points);
PyObject *fill_po;
PyObject *stroke_po;
Py_INCREF(self);
Py_INCREF(func);
/* we have to provide a Python object even if there is no color */
if (fill)
fill_po = PyDiaColor_New (fill);
else
Py_INCREF(Py_None), fill_po = Py_None;
if (stroke)
stroke_po = PyDiaColor_New (stroke);
else
Py_INCREF(Py_None), stroke_po = Py_None;
arg = Py_BuildValue ("(OOO)", obt, fill_po, stroke_po);
if (arg) {
res = PyEval_CallObject (func, arg);
ON_RES(res, FALSE);
}
Py_XDECREF (arg);
Py_XDECREF (obt);
Py_XDECREF (fill_po);
Py_XDECREF (stroke_po);
Py_DECREF(func);
Py_DECREF(self);
} else { /* member optional */
PyErr_Clear();
/* PyDia only backward compatibility */
if (fill)
fill_bezier (renderer, points, num_points, fill);
if (stroke) /* XXX: still not closing */
draw_bezier (renderer, points, num_points, stroke);
}
}
/*!
* \brief Draw ellipse
*
* Not optional on the PyDia side. If not implemented a runtime warning
* will be generated when called.
*
* \memberof _DiaPyRenderer
*/
static void
draw_ellipse(DiaRenderer *renderer,
Point *center,
real width, real height,
Color *fill, Color *stroke)
{
PyObject *func, *res, *arg, *self = PYDIA_RENDERER (renderer);
func = PyObject_GetAttrString (self, "draw_ellipse");
if (func && PyCallable_Check(func)) {
PyObject *opoint = PyDiaPoint_New (center);
PyObject *fill_po;
PyObject *stroke_po;
Py_INCREF(self);
Py_INCREF(func);
/* we have to provide a Python object even if there is no color */
if (fill)
fill_po = PyDiaColor_New (fill);
else
Py_INCREF(Py_None), fill_po = Py_None;
if (stroke)
stroke_po = PyDiaColor_New (stroke);
else
Py_INCREF(Py_None), stroke_po = Py_None;
arg = Py_BuildValue ("(OddOO)", opoint, width, height, fill_po, stroke_po);
if (arg) {
res = PyEval_CallObject (func, arg);
ON_RES(res, FALSE);
}
Py_XDECREF (arg);
Py_XDECREF (opoint);
Py_XDECREF (fill_po);
Py_XDECREF (stroke_po);
Py_DECREF(func);
Py_DECREF(self);
} else { /* member not optional */
gchar *msg = g_strdup_printf ("%s.draw_ellipse() implementation missing.",
G_OBJECT_CLASS_NAME (G_OBJECT_GET_CLASS (renderer)));
PyErr_Clear();
PyErr_Warn (PyExc_RuntimeWarning, msg);
g_free (msg);
}
}
static void
draw_rounded_rect(DiaRenderer *renderer,
Point *ul_corner, Point *lr_corner,
Color *fill, Color *stroke, real rounding)
{
PyObject *func, *res, *arg, *self = PYDIA_RENDERER (renderer);
func = PyObject_GetAttrString (self, "draw_rounded_rect");
if (func && PyCallable_Check(func)) {
PyObject *orect = PyDiaRectangle_New_FromPoints (ul_corner, lr_corner);
PyObject *fill_po, *stroke_po;
Py_INCREF(self);
Py_INCREF(func);
if (fill)
fill_po = PyDiaColor_New (fill);
else
Py_INCREF(Py_None), fill_po = Py_None;
if (stroke)
stroke_po = PyDiaColor_New (stroke);
else
Py_INCREF(Py_None), stroke_po = Py_None;
arg = Py_BuildValue ("(OOOd)", orect, fill_po, stroke_po, rounding);
if (arg) {
res = PyEval_CallObject (func, arg);
ON_RES(res, FALSE);
}
Py_XDECREF (arg);
Py_XDECREF (fill_po);
Py_XDECREF (stroke_po);
Py_XDECREF (orect);
Py_DECREF(func);
Py_DECREF(self);
}
else { /* member optional */
PyErr_Clear();
/* implementing the same fallback as DiaRenderer would do */
DIA_RENDERER_CLASS (parent_class)->draw_rounded_rect (renderer, ul_corner, lr_corner,
fill, stroke, rounding);
}
}
/*!
* \brief Draw polygon
*
* Optional on the PyDia side. If not implemented fallback to base class member.
*
* \memberof _DiaPyRenderer
*/
static void
draw_polygon(DiaRenderer *renderer,
Point *points, int num_points,
Color *fill, Color *stroke)
{
PyObject *func, *res, *arg, *self = PYDIA_RENDERER (renderer);
func = PyObject_GetAttrString (self, "draw_polygon");
if (func && PyCallable_Check(func)) {
PyObject *optt = PyDiaPointTuple_New (points, num_points);
PyObject *fill_po, *stroke_po;
if (fill)
fill_po = PyDiaColor_New (fill);
else
Py_INCREF(Py_None), fill_po = Py_None;
if (stroke)
stroke_po = PyDiaColor_New (stroke);
else
Py_INCREF(Py_None), stroke_po = Py_None;
Py_INCREF(self);
Py_INCREF(func);
arg = Py_BuildValue ("(OOO)", optt, fill_po, stroke_po);
if (arg) {
res = PyEval_CallObject (func, arg);
ON_RES(res, FALSE);
}
Py_XDECREF (arg);
Py_XDECREF (optt);
Py_XDECREF (fill_po);
Py_XDECREF (stroke_po);
Py_DECREF(func);
Py_DECREF(self);
} else { /* fill_polygon was not an optional member */
PyErr_Warn (PyExc_RuntimeWarning, "DiaPyRenderer : draw_polygon() method missing!\n");
}
}
/*!
* \brief Draw string
*
* Not optional on the PyDia side. If not implemented a runtime warning
* will be generated when called.
*
* \memberof _DiaPyRenderer
*/
static void
draw_string(DiaRenderer *renderer,
const char *text,
Point *pos, Alignment alignment,
Color *colour)
{
PyObject *func, *res, *arg, *self = PYDIA_RENDERER (renderer);
switch (alignment) {
case ALIGN_LEFT:
break;
case ALIGN_CENTER:
break;
case ALIGN_RIGHT:
break;
}
func = PyObject_GetAttrString (self, "draw_string");
if (func && PyCallable_Check(func)) {
PyObject *opoint = PyDiaPoint_New (pos);
PyObject *ocolor = PyDiaColor_New (colour);
Py_INCREF(self);
Py_INCREF(func);
arg = Py_BuildValue ("(sOiO)", text, opoint, alignment, ocolor);
if (arg) {
res = PyEval_CallObject (func, arg);
ON_RES(res, FALSE);
}
Py_XDECREF (arg);
Py_XDECREF (opoint);
Py_XDECREF (ocolor);
Py_DECREF(func);
Py_DECREF(self);
} else { /* member not optional */
gchar *msg = g_strdup_printf ("%s.draw_string() implmentation missing.",
G_OBJECT_CLASS_NAME (G_OBJECT_GET_CLASS (renderer)));
PyErr_Clear();
PyErr_Warn (PyExc_RuntimeWarning, msg);
g_free (msg);
}
}
/*!
* \brief Fill arc
*
* Not optional on the PyDia side. If not implemented a runtime warning
* will be generated when called.
*
* \memberof _DiaPyRenderer
*/
static void
fill_arc(DiaRenderer *renderer,
Point *center,
real width, real height,
real angle1, real angle2,
Color *colour)
{
PyObject *func, *res, *arg, *self = PYDIA_RENDERER (renderer);
func = PyObject_GetAttrString (self, "fill_arc");
if (func && PyCallable_Check(func)) {
PyObject *opoint = PyDiaPoint_New (center);
PyObject *ocolor = PyDiaColor_New (colour);
Py_INCREF(self);
Py_INCREF(func);
arg = Py_BuildValue ("(OddddO)", opoint,
width, height, angle1, angle2,
ocolor);
if (arg) {
res = PyEval_CallObject (func, arg);
ON_RES(res, FALSE);
}
Py_XDECREF (arg);
Py_XDECREF (opoint);
Py_XDECREF (ocolor);
Py_DECREF(func);
Py_DECREF(self);
}
else { /* member not optional */
gchar *msg = g_strdup_printf ("%s.fill_arc() implmentation missing.",
G_OBJECT_CLASS_NAME (G_OBJECT_GET_CLASS (renderer)));
PyErr_Clear();
PyErr_Warn (PyExc_RuntimeWarning, msg);
g_free (msg);
}
}
static PyObject *
PyDiaDiagramData_GetAttr(PyDiaDiagramData *self, gchar *attr)
{
Diagram *diagram = DIA_DIAGRAM(self->data);
if (!strcmp(attr, "__members__"))
return Py_BuildValue("[ssssssssssss]",
"extents", "bg_color", "paper",
"layers", "active_layer",
"grid_width", "grid_visible",
"hguides", "vguides",
"layers", "active_layer",
"selected" );
else if (!strcmp(attr, "extents"))
return PyDiaRectangle_New(&self->data->extents, NULL);
else if (!strcmp(attr, "bg_color")) {
return PyDiaColor_New (&(self->data->bg_color));
}
else if (!strcmp(attr, "layers")) {
guint i, len = self->data->layers->len;
PyObject *ret = PyTuple_New(len);
for (i = 0; i < len; i++)
PyTuple_SetItem(ret, i, PyDiaLayer_New(
g_ptr_array_index(self->data->layers, i)));
return ret;
} else if (!strcmp(attr, "active_layer")) {
return PyDiaLayer_New(self->data->active_layer);
} else if (!strcmp(attr, "paper")) {
return PyDiaPaperinfo_New (&self->data->paper);
}
else if (diagram && !strcmp(attr, "grid_width"))
return Py_BuildValue("(dd)", diagram->grid.width_x, diagram->grid.width_y);
else if (diagram && !strcmp(attr, "grid_visible"))
return Py_BuildValue("(ii)", diagram->grid.visible_x, diagram->grid.visible_y);
else if (diagram && !strcmp(attr, "hguides")) {
int len = diagram->guides.nhguides;
PyObject *ret = PyTuple_New(len);
int i;
for (i = 0; i < len; i++)
PyTuple_SetItem(ret, i, PyFloat_FromDouble(diagram->guides.hguides[i]));
return ret;
}
else if (diagram && !strcmp(attr, "vguides")) {
int len = diagram->guides.nvguides;
PyObject *ret = PyTuple_New(len);
int i;
for (i = 0; i < len; i++)
PyTuple_SetItem(ret, i, PyFloat_FromDouble(diagram->guides.vguides[i]));
return ret;
}
else if (!strcmp(attr, "layers")) {
guint i, len = self->data->layers->len;
PyObject *ret = PyTuple_New(len);
for (i = 0; i < len; i++)
PyTuple_SetItem(ret, i, PyDiaLayer_New(
g_ptr_array_index(self->data->layers, i)));
return ret;
}
else if (!strcmp(attr, "active_layer")) {
return PyDiaLayer_New(self->data->active_layer);
}
else if (!strcmp(attr, "selected")) {
PyObject *ret;
GList *tmp;
gint i;
ret = PyTuple_New(g_list_length(self->data->selected));
for (i = 0, tmp = self->data->selected; tmp; i++, tmp = tmp->next)
PyTuple_SetItem(ret, i, PyDiaObject_New((DiaObject *)tmp->data));
return ret;
}
return Py_FindMethod(PyDiaDiagramData_Methods, (PyObject *)self, attr);
}
