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David Cazier
CGoGN
Commits
89cdae80
Commit
89cdae80
authored
Oct 10, 2012
by
Sylvain Thery
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enhancement of text rendering (updating & change color)
parent
2433e28a
Changes
2
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2 changed files
with
70 additions
and
0 deletions
+70
-0
include/Utils/text3d.h
include/Utils/text3d.h
+14
-0
src/Utils/text3d.cpp
src/Utils/text3d.cpp
+56
-0
No files found.
include/Utils/text3d.h
View file @
89cdae80
...
...
@@ -134,6 +134,12 @@ public:
*/
void
predraw
(
const
Geom
::
Vec3f
&
color
);
/**
* call just before a draw
* @param color the color of text
*/
void
changeColor
(
const
Geom
::
Vec3f
&
color
);
/**
* call once after several draw(id,pos)
*/
...
...
@@ -150,6 +156,14 @@ public:
*/
void
setPlane
(
const
Geom
::
Vec3f
&
ox
,
const
Geom
::
Vec3f
&
oy
);
/**
* Update string content
* @warning size can not be changed
* @param idSt string id
* @param str new string content
*/
void
updateString
(
unsigned
int
idSt
,
const
std
::
string
&
str
);
void
toSVG
(
Utils
::
SVG
::
SVGOut
&
svg
);
};
...
...
src/Utils/text3d.cpp
View file @
89cdae80
...
...
@@ -236,6 +236,12 @@ void Strings3D::predraw(const Geom::Vec3f& color)
enableVertexAttribs
();
}
void
Strings3D
::
changeColor
(
const
Geom
::
Vec3f
&
color
)
{
bind
();
glUniform3fv
(
*
m_uniform_color
,
1
,
color
.
data
());
}
void
Strings3D
::
postdraw
()
{
disableVertexAttribs
();
...
...
@@ -266,6 +272,56 @@ void Strings3D::drawAll(const Geom::Vec3f& color)
postdraw
();
}
void
Strings3D
::
updateString
(
unsigned
int
idSt
,
const
std
::
string
&
str
)
{
unsigned
int
firstIndex
=
m_strpos
[
idSt
].
first
;
unsigned
int
nbIndices
=
m_strpos
[
idSt
].
second
;
unsigned
int
nbc
=
std
::
min
((
unsigned
int
)(
str
.
length
()),
nbIndices
/
4
);
m_vbo1
->
bind
();
float
*
buffer
=
reinterpret_cast
<
float
*>
(
glMapBuffer
(
GL_ARRAY_BUFFER
,
GL_READ_WRITE
));
buffer
+=
firstIndex
*
4
;
float
x
=
0.0
f
;
for
(
unsigned
int
j
=
0
;
j
<
nbc
;
++
j
)
{
unsigned
int
ci
=
str
[
j
]
-
32
;
float
u
=
float
(
ci
%
CHARSPERLINE
)
/
float
(
CHARSPERLINE
);
float
v
=
float
(
ci
/
CHARSPERLINE
)
/
float
(
CHARSPERCOL
)
+
1.0
f
/
HEIGHTTEXTURE
;
float
u2
=
u
+
float
(
REALWIDTHFONT
)
/
float
(
WIDTHTEXTURE
);
float
v2
=
v
+
float
(
WIDTHFONT
-
1
)
/
float
(
HEIGHTTEXTURE
);
*
buffer
++
=
x
;
*
buffer
++
=
0
;
*
buffer
++
=
u
;
*
buffer
++
=
v2
;
float
xf
=
x
+
float
(
REALWIDTHFONT
)
/
25.
f
;
*
buffer
++
=
xf
;
*
buffer
++
=
0
;
*
buffer
++
=
u2
;
*
buffer
++
=
v2
;
*
buffer
++
=
xf
;
*
buffer
++
=
float
(
WIDTHFONT
)
/
25.
f
;
*
buffer
++
=
u2
;
*
buffer
++
=
v
;
*
buffer
++
=
x
;
*
buffer
++
=
float
(
WIDTHFONT
)
/
25.
f
;
*
buffer
++
=
u
;
*
buffer
++
=
v
;
x
=
xf
;
// + space ?
}
glUnmapBuffer
(
GL_ARRAY_BUFFER
);
}
void
Strings3D
::
toSVG
(
Utils
::
SVG
::
SVGOut
&
svg
)
{
svg
.
beginStrings
(
m_scale
);
...
...
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