FazBrowse GitHub Viewer
|
Trending
|
URL:
|
Home
Tools:
[Download Repo ZIP]
[View Raw Code]
[Original HTTPS Page]
matplotlib/src/_tkagg.cpp at 9fbfaf1aa9de95cd9db690e407445b91b479b0a6 · pelson/matplotlib · GitHub
pelson
matplotlib
Repository navigation
Code
Pull requests
Actions
Projects
Wiki
Security and quality
Insights
Expand file tree
Breadcrumbs
matplotlib
/
src
/
_tkagg.cpp
Copy path
More file actions
More file actions
Latest commit
History
History
History
209 lines (174 loc) · 5.01 KB
Breadcrumbs
matplotlib
/
src
/
_tkagg.cpp
Copy path
File metadata and controls
209 lines (174 loc) · 5.01 KB
Raw
Copy raw file
Download raw file
Open symbols panel
Edit and raw actions
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
/*
* The Python Imaging Library.
* $Id$
*
*/
/*
This is needed for (at least) Tk 8.4.1, otherwise the signature of
** Tk_PhotoPutBlock changes.
*/
#
define
USE_COMPOSITELESS_PHOTO_PUT_BLOCK
#
include
<
Python.h
>
#
include
<
stdlib.h
>
#
include
"
agg_basics.h
"
#
include
"
_backend_agg.h
"
#
include
"
_transforms.h
"
extern
"
C
"
{
#
ifdef
__APPLE__
#
ifdef
TK_FRAMEWORK
#
include
<
Tcl/tcl.h
>
#
include
<
Tk/tk.h
>
#
else
#
include
<
tk.h
>
#
endif
#
else
#
include
<
tk.h
>
#
endif
};
typedef
struct
{
PyObject_HEAD
Tcl_Interp* interp;
} TkappObject;
static
int
PyAggImagePhoto
(ClientData clientdata, Tcl_Interp* interp,
int
argc,
char
**argv)
{
Tk_PhotoHandle photo;
Tk_PhotoImageBlock block;
PyObject* aggo;
//
vars for blitting
PyObject* bboxo;
Bbox* bbox;
agg::int8u *destbuffer;
double
l,b,r,t;
int
destx, desty, destwidth, destheight, deststride;
long
mode;
long
nval;
if
(argc !=
5
) {
Tcl_AppendResult
(interp,
"
usage:
"
, argv[
0
],
"
destPhoto srcImage
"
, (
char
*)
NULL
);
return
TCL_ERROR
;
}
/*
get Tcl PhotoImage handle
*/
photo =
Tk_FindPhoto
(interp, argv[
1
]);
if
(photo ==
NULL
) {
Tcl_AppendResult
(interp,
"
destination photo must exist
"
, (
char
*)
NULL
);
return
TCL_ERROR
;
}
/*
get array (or object that can be converted to array) pointer
*/
aggo = (PyObject*)
atol
(argv[
2
]);
RendererAgg *aggRenderer = (RendererAgg *)aggo;
/*
XXX insert aggRenderer type check
*/
/*
get array mode (0=mono, 1=rgb, 2=rgba)
*/
mode =
atol
(argv[
3
]);
if
((mode !=
0
) && (mode !=
1
) && (mode !=
2
)) {
Tcl_AppendResult
(interp,
"
illegal image mode
"
, (
char
*)
NULL
);
return
TCL_ERROR
;
}
/*
check for bbox/blitting
*/
bboxo = (PyObject*)
atol
(argv[
4
]);
if
(bboxo != Py_None) {
bbox = (Bbox*)bboxo;
l = bbox->
ll_api
()->
x_api
()->
val
();
b = bbox->
ll_api
()->
y_api
()->
val
();
r = bbox->
ur_api
()->
x_api
()->
val
();
t = bbox->
ur_api
()->
y_api
()->
val
();
destx = (
int
)l;
desty = (
int
)b;
destwidth = (
int
)(r-l);
destheight = (
int
)(t-b);
deststride =
4
*destwidth;
destbuffer =
new
agg::int8u[deststride*destheight];
if
(destbuffer ==
NULL
) {
throw
Py::MemoryError
(
"
_tkagg could not allocate memory for destbuffer
"
);
}
agg::rendering_buffer destrbuf;
destrbuf.
attach
(destbuffer, destwidth, destheight, deststride);
pixfmt
destpf
(destrbuf);
renderer_base
destrb
(destpf);
agg::rect_base<
int
>
region
(destx, desty, (
int
)r, (
int
)t);
destrb.
copy_from
(*aggRenderer->
renderingBuffer
, ®ion,
-destx, -desty);
}
else
{
bbox =
NULL
;
}
/*
setup tkblock
*/
block.
pixelSize
=
1
;
if
(mode ==
0
) {
block.
offset
[
0
]= block.
offset
[
1
] = block.
offset
[
2
] =
0
;
nval =
1
;
}
else
{
block.
offset
[
0
] =
0
;
block.
offset
[
1
] =
1
;
block.
offset
[
2
] =
2
;
if
(mode ==
1
) {
block.
offset
[
3
] =
0
;
block.
pixelSize
=
3
;
nval =
3
;
}
else
{
block.
offset
[
3
] =
3
;
block.
pixelSize
=
4
;
nval =
4
;
}
}
if
(bbox) {
block.
width
= destwidth;
block.
height
= destheight;
block.
pitch
= deststride;
block.
pixelPtr
= destbuffer;
Tk_PhotoPutBlock
(photo, &block, destx, desty, destwidth, destheight);
delete []
destbuffer;
}
else
{
block.
width
= aggRenderer->
get_width
();
block.
height
= aggRenderer->
get_height
();
block.
pitch
= block.
width
* nval;
block.
pixelPtr
= aggRenderer->
pixBuffer
;
/*
Clear current contents
*/
Tk_PhotoBlank
(photo);
/*
Copy opaque block to photo image, and leave the rest to TK
*/
Tk_PhotoPutBlock
(photo, &block,
0
,
0
, block.
width
, block.
height
);
}
return
TCL_OK
;
}
static
PyObject *
_pyobj_addr
(PyObject* self, PyObject* args)
{
PyObject *pyobj;
if
(!
PyArg_ParseTuple
(args,
"
O
"
, &pyobj))
return
NULL
;
return
Py_BuildValue
(
"
l
"
, (
long
) pyobj);
}
static
PyObject*
_tkinit
(PyObject* self, PyObject* args)
{
Tcl_Interp* interp;
TkappObject* app;
long
arg;
int
is_interp;
if
(!
PyArg_ParseTuple
(args,
"
li
"
, &arg, &is_interp))
return
NULL
;
if
(is_interp) {
interp = (Tcl_Interp*) arg;
}
else
{
/*
Do it the hard way. This will break if the TkappObject
layout changes
*/
app = (TkappObject*) arg;
interp = app->
interp
;
}
/*
This will bomb if interp is invalid...
*/
Tcl_CreateCommand
(interp,
"
PyAggImagePhoto
"
,
(Tcl_CmdProc *) PyAggImagePhoto,
(ClientData)
0
, (Tcl_CmdDeleteProc*)
NULL
);
Py_INCREF
(Py_None);
return
Py_None;
}
static
PyMethodDef functions[] = {
/*
Tkinter interface stuff
*/
{
"
_pyobj_addr
"
, (PyCFunction)_pyobj_addr,
1
},
{
"
tkinit
"
, (PyCFunction)_tkinit,
1
},
{
NULL
,
NULL
}
/*
sentinel
*/
};
extern
"
C
"
DL_EXPORT
(
void
) init_tkagg(
void
)
{
Py_InitModule
(
"
_tkagg
"
, functions);
}
Back
|
FazBrowse Home
|
New Git URL