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* Added function Blender.Draw.GetStringWidth().

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* Added doc and small test for Blender.Test
* trying changes to make Blender.Test.unlink() safer.
This commit is contained in:
Willian Padovani Germano
2003-06-26 02:03:51 +00:00
parent dd8f216691
commit 72f0cdace4
8 changed files with 408 additions and 174 deletions
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333
source/blender/python/api2_2x/Text.c
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@@ -32,16 +32,16 @@
#include "Text.h"
/*****************************************************************************/
/* Function: M_Text_New */
/* Python equivalent: Blender.Text.New */
/* Function: M_Text_New */
/* Python equivalent: Blender.Text.New */
/*****************************************************************************/
static PyObject *M_Text_New(PyObject *self, PyObject *args, PyObject *keywords)
{
char *name = NULL;
char buf[21];
int follow = 0;
Text *bl_text; /* blender text object */
C_Text *py_text; /* python wrapper */
Text *bl_text; /* blender text object */
PyObject *py_text; /* python wrapper */
if (!PyArg_ParseTuple(args, "|si", &name, &follow))
return EXPP_ReturnPyObjError (PyExc_AttributeError,
@@ -50,7 +50,7 @@ static PyObject *M_Text_New(PyObject *self, PyObject *args, PyObject *keywords)
bl_text = add_empty_text();
if (bl_text)
py_text = (C_Text *)PyObject_NEW(C_Text, &Text_Type);
py_text = Text_CreatePyObject (bl_text);
else
return EXPP_ReturnPyObjError (PyExc_RuntimeError,
"couldn't create Text Object in Blender");
@@ -58,8 +58,6 @@ static PyObject *M_Text_New(PyObject *self, PyObject *args, PyObject *keywords)
return EXPP_ReturnPyObjError (PyExc_MemoryError,
"couldn't create Text Object wrapper");
py_text->text = bl_text;
if (follow) bl_text->flags |= EXPP_TEXT_MODE_FOLLOW;
if (name) {
@@ -67,7 +65,7 @@ static PyObject *M_Text_New(PyObject *self, PyObject *args, PyObject *keywords)
rename_id(&bl_text->id, buf);
}
return (PyObject *)py_text;
return py_text;
}
/*****************************************************************************/
@@ -83,21 +81,22 @@ static PyObject *M_Text_Get(PyObject *self, PyObject *args)
char *name = NULL;
Text *txt_iter;
if (!PyArg_ParseTuple(args, "|s", &name))
if (!PyArg_ParseTuple(args, "|s", &name))
return (EXPP_ReturnPyObjError (PyExc_TypeError,
"expected string argument (or nothing)"));
txt_iter = G.main->text.first;
if (name) { /* (name) - Search text by name */
if (name) { /* (name) - Search text by name */
C_Text *wanted_txt = NULL;
PyObject *wanted_txt = NULL;
while ((txt_iter) && (wanted_txt == NULL)) {
if (strcmp (name, txt_iter->id.name+2) == 0) {
wanted_txt = (C_Text *)PyObject_NEW(C_Text, &Text_Type);
if (wanted_txt) wanted_txt->text = txt_iter;
wanted_txt = Text_CreatePyObject (txt_iter);
}
txt_iter = txt_iter->id.next;
}
@@ -108,38 +107,38 @@ static PyObject *M_Text_Get(PyObject *self, PyObject *args)
return (EXPP_ReturnPyObjError (PyExc_NameError, error_msg));
}
return (PyObject *)wanted_txt;
}
return wanted_txt;
}
else { /* () - return a list of all texts in the scene */
else { /* () - return a list of all texts in the scene */
int index = 0;
PyObject *txtlist, *pystr;
PyObject *txtlist, *pyobj;
txtlist = PyList_New (BLI_countlist (&(G.main->text)));
if (txtlist == NULL)
return (PythonReturnErrorObject (PyExc_MemoryError,
return (EXPP_ReturnPyObjError (PyExc_MemoryError,
"couldn't create PyList"));
while (txt_iter) {
pystr = PyString_FromString (txt_iter->id.name+2);
while (txt_iter) {
pyobj = Text_CreatePyObject(txt_iter);
if (!pystr)
return (PythonReturnErrorObject (PyExc_MemoryError,
"couldn't create PyString"));
if (!pyobj)
return (EXPP_ReturnPyObjError (PyExc_MemoryError,
"couldn't create PyString"));
PyList_SET_ITEM (txtlist, index, pystr);
PyList_SET_ITEM (txtlist, index, pyobj);
txt_iter = txt_iter->id.next;
index++;
}
}
return (txtlist);
}
return (txtlist);
}
}
/*****************************************************************************/
/* Function: M_Text_Get */
/* Function: M_Text_Load */
/* Python equivalent: Blender.Text.Load */
/* Description: Receives a filename and returns the text object */
/* created from the corresponding file. */
@@ -148,13 +147,13 @@ static PyObject *M_Text_Load(PyObject *self, PyObject *args)
{
char *fname;
Text *txt_ptr;
C_Text *txt;
BPy_Text *txt;
if (!PyArg_ParseTuple(args, "s", &fname))
return (EXPP_ReturnPyObjError (PyExc_TypeError,
"expected string argument"));
txt = (C_Text *)PyObject_NEW(C_Text, &Text_Type);
txt = (BPy_Text *)PyObject_NEW(BPy_Text, &Text_Type);
if (!txt)
return EXPP_ReturnPyObjError (PyExc_MemoryError,
@@ -170,34 +169,36 @@ static PyObject *M_Text_Load(PyObject *self, PyObject *args)
return (PyObject *)txt;
}
/*@This function removes the text entry from the text editor.
* The text is not freed here, but inside the garbage collector. */
/* This function actually makes Blender dump core if the script is repeatedly
* executed, gotta investigate better */
/*****************************************************************************/
/* Function: M_Text_unlink */
/* Python equivalent: Blender.Text.unlink */
/* Description: Removes the given Text object from Blender */
/*****************************************************************************/
static PyObject *M_Text_unlink(PyObject *self, PyObject *args)
{
C_Text *textobj;
BPy_Text *textobj;
Text *text;
if (!PyArg_ParseTuple(args, "O!", &Text_Type, &textobj))
if (!PyArg_ParseTuple(args, "O!", &Text_Type, &textobj))
return EXPP_ReturnPyObjError (PyExc_TypeError,
"expected a Text object as argument");
"expected a Text object as argument");
BPY_clear_bad_scriptlinks(textobj->text);
free_text_controllers(textobj->text);
unlink_text(textobj->text);
/*@We actually should not free the text object here, but let the
* __del__ method of the wrapper do the job. This would require some
* changes in the GUI code though..
* So we mark the wrapper as invalid by setting wrapper->data = 0 */
free_libblock(&G.main->text, textobj->text);
text = ((BPy_Text *)textobj)->text;
textobj->text = NULL; /* XXX */
Py_XDECREF(textobj); /* XXX just a guess -- works ? */
if (!text)
return EXPP_ReturnPyObjError (PyExc_RuntimeError,
"this text was already unlinked!");
Py_INCREF(Py_None);
return Py_None;
BPY_clear_bad_scriptlinks(text);
free_text_controllers(text);
unlink_text(text);
free_libblock(&G.main->text, text);
((BPy_Text *)textobj)->text = NULL;
Py_INCREF(Py_None);
return Py_None;
}
/*****************************************************************************/
@@ -215,9 +216,27 @@ PyObject *Text_Init (void)
}
/*****************************************************************************/
/* Python C_Text methods: */
/* Function: Text_CreatePyObject */
/*****************************************************************************/
static PyObject *Text_getName(C_Text *self)
PyObject *Text_CreatePyObject (Text *txt)
{
BPy_Text *pytxt;
pytxt = (BPy_Text *)PyObject_NEW (BPy_Text, &Text_Type);
if (!pytxt)
return EXPP_ReturnPyObjError (PyExc_MemoryError,
"couldn't create BPy_Text PyObject");
pytxt->text = txt;
return (PyObject *)pytxt;
}
/*****************************************************************************/
/* Python BPy_Text methods: */
/*****************************************************************************/
static PyObject *Text_getName(BPy_Text *self)
{
PyObject *attr = PyString_FromString(self->text->id.name+2);
@@ -227,7 +246,7 @@ static PyObject *Text_getName(C_Text *self)
"couldn't get Text.name attribute");
}
static PyObject *Text_getFilename(C_Text *self)
static PyObject *Text_getFilename(BPy_Text *self)
{
PyObject *attr = PyString_FromString(self->text->name);
@@ -237,13 +256,13 @@ static PyObject *Text_getFilename(C_Text *self)
"couldn't get Text.filename attribute");
}
static PyObject *Text_getNLines(C_Text *self)
static PyObject *Text_getNLines(BPy_Text *self)
{ /* text->nlines isn't updated in Blender (?) */
int nlines = 0;
TextLine *line;
PyObject *attr;
line = self->text->lines.first;
line = self->text->lines.first;
while (line) { /* so we have to count them ourselves */
line = line->next;
@@ -260,7 +279,7 @@ static PyObject *Text_getNLines(C_Text *self)
"couldn't get Text.nlines attribute");
}
static PyObject *Text_setName(C_Text *self, PyObject *args)
static PyObject *Text_setName(BPy_Text *self, PyObject *args)
{
char *name;
char buf[21];
@@ -277,110 +296,115 @@ static PyObject *Text_setName(C_Text *self, PyObject *args)
return Py_None;
}
static PyObject *Text_clear(C_Text *self, PyObject *args)
static PyObject *Text_clear(BPy_Text *self, PyObject *args)
{
int oldstate;
int oldstate;
if (!self->text)
return EXPP_ReturnPyObjError (PyExc_RuntimeError,
"This object isn't linked to a Blender Text Object");
if (!self->text)
return EXPP_ReturnPyObjError (PyExc_RuntimeError,
"This object isn't linked to a Blender Text Object");
oldstate = txt_get_undostate();
txt_set_undostate(1);
txt_sel_all(self->text);
txt_cut_sel(self->text);
txt_set_undostate(oldstate);
Py_INCREF(Py_None);
return Py_None;
oldstate = txt_get_undostate();
txt_set_undostate(1);
txt_sel_all(self->text);
txt_cut_sel(self->text);
txt_set_undostate(oldstate);
Py_INCREF(Py_None);
return Py_None;
}
static PyObject *Text_set(C_Text *self, PyObject *args)
static PyObject *Text_set(BPy_Text *self, PyObject *args)
{
int ival;
char *attr;
int ival;
char *attr;
if (!PyArg_ParseTuple(args, "si", &attr, &ival))
return EXPP_ReturnPyObjError (PyExc_TypeError,
"expected a string and an int as arguments");
if (!PyArg_ParseTuple(args, "si", &attr, &ival))
return EXPP_ReturnPyObjError (PyExc_TypeError,
"expected a string and an int as arguments");
if (strcmp("follow_cursor", attr) == 0) {
if (ival)
self->text->flags |= EXPP_TEXT_MODE_FOLLOW;
else
self->text->flags &= EXPP_TEXT_MODE_FOLLOW;
}
if (strcmp("follow_cursor", attr) == 0) {
if (ival)
self->text->flags |= EXPP_TEXT_MODE_FOLLOW;
else
self->text->flags &= EXPP_TEXT_MODE_FOLLOW;
}
Py_INCREF(Py_None);
return Py_None;
Py_INCREF(Py_None);
return Py_None;
}
static PyObject *Text_write(C_Text *self, PyObject *args)
static PyObject *Text_write(BPy_Text *self, PyObject *args)
{
char *str;
int oldstate;
char *str;
int oldstate;
if (!self->text)
return EXPP_ReturnPyObjError (PyExc_RuntimeError,
"This object isn't linked to a Blender Text Object");
if (!self->text)
return EXPP_ReturnPyObjError (PyExc_RuntimeError,
"This object isn't linked to a Blender Text Object");
if (!PyArg_ParseTuple(args, "s", &str))
return EXPP_ReturnPyObjError (PyExc_TypeError,
if (!PyArg_ParseTuple(args, "s", &str))
return EXPP_ReturnPyObjError (PyExc_TypeError,
"expected string argument");
oldstate = txt_get_undostate();
txt_insert_buf(self->text, str);
txt_move_eof(self->text, 0);
txt_set_undostate(oldstate);
oldstate = txt_get_undostate();
txt_insert_buf(self->text, str);
txt_move_eof(self->text, 0);
txt_set_undostate(oldstate);
Py_INCREF(Py_None);
return Py_None;
Py_INCREF(Py_None);
return Py_None;
}
static PyObject *Text_asLines(C_Text *self, PyObject *args)
static PyObject *Text_asLines(BPy_Text *self, PyObject *args)
{
TextLine *line;
PyObject *list, *ob;
TextLine *line;
PyObject *list, *ob;
if (!self->text)
return EXPP_ReturnPyObjError (PyExc_RuntimeError,
if (!self->text)
return EXPP_ReturnPyObjError (PyExc_RuntimeError,
"This object isn't linked to a Blender Text Object");
line = self->text->lines.first;
list= PyList_New(0);
line = self->text->lines.first;
list= PyList_New(0);
if (!list)
return EXPP_ReturnPyObjError (PyExc_MemoryError,
if (!list)
return EXPP_ReturnPyObjError (PyExc_MemoryError,
"couldn't create PyList");
while (line) {
ob = Py_BuildValue("s", line->line);
PyList_Append(list, ob);
line = line->next;
}
while (line) {
ob = Py_BuildValue("s", line->line);
PyList_Append(list, ob);
line = line->next;
}
return list;
}
/*****************************************************************************/
/* Function: TextDeAlloc */
/* Description: This is a callback function for the C_Text type. It is */
/* Function: Text_dealloc */
/* Description: This is a callback function for the BPy_Text type. It is */
/* the destructor function. */
/*****************************************************************************/
static void TextDeAlloc (C_Text *self)
static void Text_dealloc (BPy_Text *self)
{
PyObject_DEL (self);
}
/*****************************************************************************/
/* Function: TextGetAttr */
/* Description: This is a callback function for the C_Text type. It is */
/* the function that accesses C_Text member variables and */
/* Function: Text_getAttr */
/* Description: This is a callback function for the BPy_Text type. It is */
/* the function that accesses BPy_Text member variables and */
/* methods. */
/*****************************************************************************/
static PyObject* TextGetAttr (C_Text *self, char *name)
static PyObject *Text_getAttr (BPy_Text *self, char *name)
{
PyObject *attr = Py_None;
Text *text = self->text;
if (!text || !Text_IsLinked(text))
return EXPP_ReturnPyObjError (PyExc_RuntimeError,
"Text was already deleted!");
if (strcmp(name, "name") == 0)
attr = PyString_FromString(self->text->id.name+2);
@@ -402,26 +426,31 @@ static PyObject* TextGetAttr (C_Text *self, char *name)
if (attr != Py_None) return attr; /* attribute found, return its value */
/* not an attribute, search the methods table */
return Py_FindMethod(C_Text_methods, (PyObject *)self, name);
return Py_FindMethod(BPy_Text_methods, (PyObject *)self, name);
}
/*****************************************************************************/
/* Function: TextSetAttr */
/* Description: This is a callback function for the C_Text type. It is the */
/* function that changes Text Data members values. If this */
/* data is linked to a Blender Text, it also gets updated. */
/* Function: Text_setAttr */
/* Description: This is a callback function for the BPy_Text type. It is the */
/* function that changes Text Data members values. If this */
/* data is linked to a Blender Text, it also gets updated. */
/*****************************************************************************/
static int TextSetAttr (C_Text *self, char *name, PyObject *value)
static int Text_setAttr (BPy_Text *self, char *name, PyObject *value)
{
PyObject *valtuple;
PyObject *error = NULL;
Text *text = self->text;
if (!text || !Text_IsLinked(text))
return EXPP_ReturnIntError (PyExc_RuntimeError,
"Text was already deleted!");
/* We're playing a trick on the Python API users here. Even if they use
* Text.member = val instead of Text.setMember(value), we end up using the
* function anyway, since it already has error checking, clamps to the right
* interval and updates the Blender Text structure when necessary. */
valtuple = Py_BuildValue("(O)", value); /* the set* functions expect a tuple */
valtuple = Py_BuildValue("(O)", value);/* the set* functions expect a tuple */
if (!valtuple)
return EXPP_ReturnIntError(PyExc_MemoryError,
@@ -445,36 +474,58 @@ static int TextSetAttr (C_Text *self, char *name, PyObject *value)
}
/*****************************************************************************/
/* Function: TextCompare */
/* Description: This is a callback function for the C_Text type. It */
/* Function: Text_compare */
/* Description: This is a callback function for the BPy_Text type. It */
/* compares two Text_Type objects. Only the "==" and "!=" */
/* comparisons are meaninful. Returns 0 for equality and -1 if */
/* they don't point to the same Blender Text struct. */
/* In Python it becomes 1 if they are equal, 0 otherwise. */
/*****************************************************************************/
static int TextCompare (C_Text *a, C_Text *b)
static int Text_compare (BPy_Text *a, BPy_Text *b)
{
Text *pa = a->text, *pb = b->text;
return (pa == pb) ? 0:-1;
Text *pa = a->text, *pb = b->text;
return (pa == pb) ? 0:-1;
}
/*****************************************************************************/
/* Function: TextPrint */
/* Description: This is a callback function for the C_Text type. It */
/* builds a meaninful string to 'print' text objects. */
/* Function: Text_print */
/* Description: This is a callback function for the BPy_Text type. It */
/* builds a meaninful string to 'print' text objects. */
/*****************************************************************************/
static int TextPrint(C_Text *self, FILE *fp, int flags)
static int Text_print(BPy_Text *self, FILE *fp, int flags)
{
fprintf(fp, "[Text \"%s\"]", self->text->id.name+2);
if (self->text && Text_IsLinked(self->text))
fprintf(fp, "[Text \"%s\"]", self->text->id.name+2);
else
fprintf(fp, "[Text <deleted>]");
return 0;
}
/*****************************************************************************/
/* Function: TextRepr */
/* Description: This is a callback function for the C_Text type. It */
/* builds a meaninful string to represent text objects. */
/* Function: Text_repr */
/* Description: This is a callback function for the BPy_Text type. It */
/* builds a meaninful string to represent text objects. */
/*****************************************************************************/
static PyObject *TextRepr (C_Text *self)
static PyObject *Text_repr (BPy_Text *self)
{
return PyString_FromString(self->text->id.name+2);
if (self->text && Text_IsLinked(self->text))
return PyString_FromString(self->text->id.name+2);
else
return PyString_FromString("<deleted>");
}
/* internal function to confirm if a Text wasn't unlinked */
static int Text_IsLinked(Text *text)
{
Text *txt_iter = G.main->text.first;
while (txt_iter) {
if (text == txt_iter) return 1;
txt_iter = txt_iter->id.next;
}
return 0;
}