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dropdown.c
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#include
"main.h"
static
DROPDOWN
*
active
;
static
int
active_x
,
active_y
,
active_width
,
active_height
;
#define
index
(
b
,
i
) (i == 0 ? b->selected : ((i > b->selected) ? i : i - 1))
// Draw background rectangles for a dropdown
void
dropdown_drawactive
(
void
)
{
DROPDOWN
*
b
=
active
;
if
(!
b
) {
return
;
}
// load colors for this style
uint32_t
color_bg
,
color_border
,
color_aoptbg
,
color_aopttext
,
color_text
;
switch
(
b
->
style
) {
case
AUXILIARY_STYLE
:
color_bg
=
COLOR_AUX_BACKGROUND
;
color_border
=
COLOR_AUX_EDGE_ACTIVE
;
color_aoptbg
=
COLOR_AUX_ACTIVEOPTION_BACKGROUND
;
color_aopttext
=
COLOR_AUX_ACTIVEOPTION_TEXT
;
color_text
=
COLOR_AUX_TEXT
;
break
;
default
:
color_bg
=
COLOR_MAIN_BACKGROUND
;
color_border
=
COLOR_EDGE_ACTIVE
;
color_aoptbg
=
COLOR_ACTIVEOPTION_BACKGROUND
;
color_aopttext
=
COLOR_ACTIVEOPTION_TEXT
;
color_text
=
COLOR_MAIN_TEXT
;
break
;
}
int
x
=
active_x
,
y
=
active_y
,
w
=
active_width
,
h
=
active_height
;
int
i
,
sign
=
1
;
// Increase width if needed, so that all menu items fit.
for
(
i
=
0
;
i
!=
b
->
dropcount
;
i
++
) {
STRING
*
e
=
b
->
ondisplay
(
i
,
b
);
int
needed_w
=
textwidth
(
e
->
str
,
e
->
length
)
+
4
*
SCALE
;
if
(
w
<
needed_w
) {
w
=
needed_w
;
}
}
if
(
y
+
h
*
b
->
dropcount
>
utox_window_height
) {
y
-=
h
*
(
b
->
dropcount
-
1
);
sign
=
-1
;
}
drawrect
(
x
,
y
,
x
+
w
,
y
+
h
*
b
->
dropcount
,
color_bg
);
framerect
(
x
,
y
,
x
+
w
,
y
+
h
*
b
->
dropcount
,
color_border
);
if
(
sign
==
-1
) {
y
+=
h
*
(
b
->
dropcount
-
1
);
}
for
(
i
=
0
;
i
!=
b
->
dropcount
;
i
++
) {
int
j
=
index
(
b
,
i
);
STRING
*
e
=
b
->
ondisplay
(
j
,
b
);
if
(
j
==
b
->
over
) {
drawrectw
(
x
+
1
,
y
+
1
,
w
-
2
,
h
-
2
,
color_aoptbg
);
setcolor
(
color_aopttext
);
}
else
{
setcolor
(
color_text
);
}
setfont
(
FONT_TEXT
);
drawtext
(
x
+
2
*
SCALE
,
y
+
2
*
SCALE
,
e
->
str
,
e
->
length
);
y
+=
sign
*
h
;
}
}
// Draw collapsed dropdown
void
dropdown_draw
(
DROPDOWN
*
b
,
int
x
,
int
y
,
int
width
,
int
height
)
{
if
(!
b
->
open
) {
// load colors for this style
uint32_t
color_bg
,
color_border
,
color_border_h
,
color_text
;
switch
(
b
->
style
) {
case
AUXILIARY_STYLE
:
color_bg
=
COLOR_AUX_BACKGROUND
;
color_border
=
COLOR_AUX_EDGE_NORMAL
;
color_border_h
=
COLOR_AUX_EDGE_HOVER
;
color_text
=
COLOR_AUX_TEXT
;
break
;
default
:
color_bg
=
COLOR_MAIN_BACKGROUND
;
color_border
=
COLOR_EDGE_NORMAL
;
color_border_h
=
COLOR_EDGE_HOVER
;
color_text
=
COLOR_MAIN_TEXT
;
break
;
}
framerect
(
x
,
y
,
x
+
width
,
y
+
height
, (
b
->
mouseover
?
color_border_h
:
color_border
));
drawrect
(
x
+
1
,
y
+
1
,
x
+
width
-
1
,
y
+
height
-
1
,
color_bg
);
if
(
b
->
dropcount
) {
setfont
(
FONT_TEXT
);
setcolor
(
color_text
);
STRING
*
e
=
b
->
ondisplay
(
b
->
selected
,
b
);
drawtextwidth
(
x
+
2
*
SCALE
,
width
-
4
*
SCALE
,
y
+
2
*
SCALE
,
e
->
str
,
e
->
length
);
}
}
else
{
active_x
=
x
;
active_y
=
y
;
active_width
=
width
;
active_height
=
height
;
}
}
_Bool
dropdown_mmove
(
DROPDOWN
*
b
,
int
UNUSED
(
x
),
int
y
,
int
w
,
int
h
,
int
mx
,
int
my
,
int
UNUSED
(
dx
),
int
UNUSED
(
dy
))
{
if
(
b
->
open
) {
int
over
=
my
/
h
;
if
(
y
+
h
*
b
->
dropcount
>
utox_window_height
) {
over
=
my
>
0
?
0
: ((
-
my
) /
h
+
1
);
}
if
(
over
<
b
->
dropcount
) {
over
=
index
(
b
,
over
);
if
(
over
!=
b
->
over
) {
b
->
over
=
over
;
return
1
;
}
}
}
else
{
_Bool
mouseover
=
inrect
(
mx
,
my
,
0
,
0
,
w
,
h
);
if
(
mouseover
!=
b
->
mouseover
) {
b
->
mouseover
=
mouseover
;
return
1
;
}
}
return
0
;
}
_Bool
dropdown_mdown
(
DROPDOWN
*
b
)
{
if
(
b
->
mouseover
&&
b
->
dropcount
) {
b
->
open
=
1
;
active
=
b
;
return
1
;
}
return
0
;
}
_Bool
dropdown_mright
(
DROPDOWN
*
UNUSED
(
b
))
{
return
0
;
}
_Bool
dropdown_mwheel
(
DROPDOWN
*
UNUSED
(
b
),
int
UNUSED
(
height
),
double
UNUSED
(
d
))
{
return
0
;
}
_Bool
dropdown_mup
(
DROPDOWN
*
b
)
{
if
(
b
->
open
) {
b
->
open
=
0
;
active
=
NULL
;
if
(
b
->
over
<
b
->
dropcount
) {
b
->
selected
=
b
->
over
;
b
->
onselect
(
b
->
selected
,
b
);
}
return
1
;
}
return
0
;
}
_Bool
dropdown_mleave
(
DROPDOWN
*
b
)
{
if
(
b
->
mouseover
) {
b
->
mouseover
=
0
;
return
1
;
}
return
0
;
}
/***** list-based dropdown menu start *****/
// Appends localization-independent menu item.
void
list_dropdown_add_hardcoded
(
DROPDOWN
*
b
,
uint8_t
*
name
,
void
*
handle
)
{
void
*
p
=
realloc
(
b
->
userdata
, (
b
->
dropcount
+
1
)
*
sizeof
(
DROP_ELEMENT
));
if
(!
p
) {
return
;
}
b
->
userdata
=
p
;
DROP_ELEMENT
*
e
=
&
((
DROP_ELEMENT
*
)
b
->
userdata
)[
b
->
dropcount
++
];
maybe_i18nal_string_set_plain
(
&
e
->
name
,
name
,
strlen
((
char
*
)
name
));
e
->
handle
=
handle
;
}
// Appends localized menu item.
void
list_dropdown_add_localized
(
DROPDOWN
*
b
,
UI_STRING_ID
string_id
,
void
*
handle
)
{
void
*
p
=
realloc
(
b
->
userdata
, (
b
->
dropcount
+
1
)
*
sizeof
(
DROP_ELEMENT
));
if
(!
p
) {
return
;
}
b
->
userdata
=
p
;
DROP_ELEMENT
*
e
=
&
((
DROP_ELEMENT
*
)
b
->
userdata
)[
b
->
dropcount
++
];
maybe_i18nal_string_set_i18nal
(
&
e
->
name
,
string_id
);
e
->
handle
=
handle
;
}
// Clears menu (removes all menu items of a list-based dropdown).
void
list_dropdown_clear
(
DROPDOWN
*
b
)
{
free
(
b
->
userdata
);
b
->
userdata
=
NULL
;
b
->
dropcount
=
0
;
b
->
over
=
0
;
b
->
selected
=
0
;
}
// Generic display function for list-based dropdowns,
// userdata of which is an array of DROP_ELEMENTs.
STRING
*
list_dropdown_ondisplay
(
uint16_t
i
,
const
DROPDOWN
*
dm
)
{
DROP_ELEMENT
*
e
=
&
((
DROP_ELEMENT
*
)
dm
->
userdata
)[
i
];
return
maybe_i18nal_string_get
(
&
e
->
name
);
}
/***** list-based dropdown menu end *****/
/***** simple localized dropdown menu start *****/
// Generic display function for simple dropdowns,
// userdata of which is a simple array of UI_STRING_IDs.
STRING
*
simple_dropdown_ondisplay
(
uint16_t
i
,
const
DROPDOWN
*
dm
)
{
return
SPTRFORLANG
(
LANG
, ((
UI_STRING_ID
*
)
dm
->
userdata
)[
i
]);
}
/***** simple localized dropdown menu end *****/
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