2011-07-07 15:41:53 +02:00
|
|
|
/* Public Domain Curses */
|
|
|
|
|
|
|
|
#include <curspriv.h>
|
|
|
|
|
|
|
|
RCSID("$Id: mouse.c,v 1.45 2008/07/13 16:08:18 wmcbrine Exp $")
|
|
|
|
|
|
|
|
/*man-start**************************************************************
|
|
|
|
|
|
|
|
Name: mouse
|
|
|
|
|
|
|
|
Synopsis:
|
|
|
|
int mouse_set(unsigned long mbe);
|
|
|
|
int mouse_on(unsigned long mbe);
|
|
|
|
int mouse_off(unsigned long mbe);
|
|
|
|
int request_mouse_pos(void);
|
|
|
|
int map_button(unsigned long button);
|
|
|
|
void wmouse_position(WINDOW *win, int *y, int *x);
|
|
|
|
unsigned long getmouse(void);
|
|
|
|
unsigned long getbmap(void);
|
|
|
|
|
|
|
|
int mouseinterval(int wait);
|
|
|
|
bool wenclose(const WINDOW *win, int y, int x);
|
|
|
|
bool wmouse_trafo(const WINDOW *win, int *y, int *x, bool to_screen);
|
|
|
|
bool mouse_trafo(int *y, int *x, bool to_screen);
|
|
|
|
mmask_t mousemask(mmask_t mask, mmask_t *oldmask);
|
|
|
|
int nc_getmouse(MEVENT *event);
|
|
|
|
int ungetmouse(MEVENT *event);
|
|
|
|
|
|
|
|
Description:
|
|
|
|
As of PDCurses 3.0, there are two separate mouse interfaces: the
|
|
|
|
classic interface, which is based on the undocumented Sys V
|
|
|
|
mouse functions; and an ncurses-compatible interface. Both are
|
|
|
|
active at all times, and you can mix and match functions from
|
|
|
|
each, though it's not recommended. The ncurses interface is
|
|
|
|
essentially an emulation layer built on top of the classic
|
|
|
|
interface; it's here to allow easier porting of ncurses apps.
|
|
|
|
|
|
|
|
The classic interface: mouse_set(), mouse_on(), mouse_off(),
|
|
|
|
request_mouse_pos(), map_button(), wmouse_position(),
|
|
|
|
getmouse(), and getbmap(). An application using this interface
|
|
|
|
would start by calling mouse_set() or mouse_on() with a non-zero
|
|
|
|
value, often ALL_MOUSE_EVENTS. Then it would check for a
|
|
|
|
KEY_MOUSE return from getch(). If found, it would call
|
|
|
|
request_mouse_pos() to get the current mouse status.
|
|
|
|
|
|
|
|
mouse_set(), mouse_on() and mouse_off() are analagous to
|
|
|
|
attrset(), attron() and attroff(). These functions set the
|
|
|
|
mouse button events to trap. The button masks used in these
|
|
|
|
functions are defined in curses.h and can be or'ed together.
|
|
|
|
They are the group of masks starting with BUTTON1_RELEASED.
|
|
|
|
|
|
|
|
request_mouse_pos() requests curses to fill in the Mouse_status
|
|
|
|
structure with the current state of the mouse.
|
|
|
|
|
|
|
|
map_button() enables the specified mouse action to activate the
|
|
|
|
Soft Label Keys if the action occurs over the area of the screen
|
|
|
|
where the Soft Label Keys are displayed. The mouse actions are
|
|
|
|
defined in curses.h in the group that starts with BUTTON_RELEASED.
|
|
|
|
|
|
|
|
wmouse_position() determines if the current mouse position is
|
|
|
|
within the window passed as an argument. If the mouse is
|
|
|
|
outside the current window, -1 is returned in the y and x
|
|
|
|
arguments; otherwise the y and x coordinates of the mouse
|
|
|
|
(relative to the top left corner of the window) are returned in
|
|
|
|
y and x.
|
|
|
|
|
|
|
|
getmouse() returns the current status of the trapped mouse
|
|
|
|
buttons as set by mouse_set() or mouse_on().
|
|
|
|
|
|
|
|
getbmap() returns the current status of the button action used
|
|
|
|
to map a mouse action to the Soft Label Keys as set by the
|
|
|
|
map_button() function.
|
|
|
|
|
|
|
|
The ncurses interface: mouseinterval(), wenclose(),
|
|
|
|
wmouse_trafo(), mouse_trafo(), mousemask(), nc_getmouse(), and
|
|
|
|
ungetmouse(). A typical application using this interface would
|
|
|
|
start by calling mousemask() with a non-zero value, often
|
|
|
|
ALL_MOUSE_EVENTS. Then it would check for a KEY_MOUSE return
|
|
|
|
from getch(). If found, it would call nc_getmouse() to get the
|
|
|
|
current mouse status.
|
|
|
|
|
|
|
|
mouseinterval() sets the timeout for a mouse click. On all
|
|
|
|
current platforms, PDCurses receives mouse button press and
|
|
|
|
release events, but must synthesize click events. It does this
|
|
|
|
by checking whether a release event is queued up after a press
|
|
|
|
event. If it gets a press event, and there are no more events
|
|
|
|
waiting, it will wait for the timeout interval, then check again
|
|
|
|
for a release. A press followed by a release is reported as
|
|
|
|
BUTTON_CLICKED; otherwise it's passed through as BUTTON_PRESSED.
|
|
|
|
The default timeout is 150ms; valid values are 0 (no clicks
|
|
|
|
reported) through 1000ms. In x11, the timeout can also be set
|
|
|
|
via the clickPeriod resource. The return value from
|
|
|
|
mouseinterval() is the old timeout. To check the old value
|
2011-10-31 20:54:00 +01:00
|
|
|
without setting a new one, call it with a parameter of -1. Note
|
|
|
|
that although there's no classic equivalent for this function
|
|
|
|
(apart from the clickPeriod resource), the value set applies in
|
2011-07-07 15:41:53 +02:00
|
|
|
both interfaces.
|
|
|
|
|
|
|
|
wenclose() reports whether the given screen-relative y, x
|
|
|
|
coordinates fall within the given window.
|
|
|
|
|
|
|
|
wmouse_trafo() converts between screen-relative and window-
|
|
|
|
relative coordinates. A to_screen parameter of TRUE means to
|
|
|
|
convert from window to screen; otherwise the reverse. The
|
|
|
|
function returns FALSE if the coordinates aren't within the
|
|
|
|
window, or if any of the parameters are NULL. The coordinates
|
|
|
|
have been converted when the function returns TRUE.
|
|
|
|
|
|
|
|
mouse_trafo() is the stdscr version of wmouse_trafo().
|
|
|
|
|
|
|
|
mousemask() is nearly equivalent to mouse_set(), but instead of
|
|
|
|
OK/ERR, it returns the value of the mask after setting it. (This
|
|
|
|
isn't necessarily the same value passed in, since the mask could
|
2011-10-31 20:54:00 +01:00
|
|
|
be altered on some platforms.) And if the second parameter is a
|
|
|
|
non-null pointer, mousemask() stores the previous mask value
|
|
|
|
there. Also, since the ncurses interface doesn't work with
|
2011-07-07 15:41:53 +02:00
|
|
|
PDCurses' BUTTON_MOVED events, mousemask() filters them out.
|
|
|
|
|
2011-10-31 20:54:00 +01:00
|
|
|
nc_getmouse() returns the current mouse status in an MEVENT
|
|
|
|
struct. This is equivalent to ncurses' getmouse(), renamed to
|
|
|
|
avoid conflict with PDCurses' getmouse(). But if you define
|
|
|
|
NCURSES_MOUSE_VERSION (preferably as 2) before including
|
|
|
|
curses.h, it defines getmouse() to nc_getmouse(), along with a
|
|
|
|
few other redefintions needed for compatibility with ncurses
|
|
|
|
code. nc_getmouse() calls request_mouse_pos(), which (not
|
2011-07-07 15:41:53 +02:00
|
|
|
getmouse()) is the classic equivalent.
|
|
|
|
|
2011-10-31 20:54:00 +01:00
|
|
|
ungetmouse() is the mouse equivalent of ungetch(). However,
|
|
|
|
PDCurses doesn't maintain a queue of mouse events; only one can
|
|
|
|
be pushed back, and it can overwrite or be overwritten by real
|
2011-07-07 15:41:53 +02:00
|
|
|
mouse events.
|
|
|
|
|
|
|
|
Portability X/Open BSD SYS V
|
|
|
|
mouse_set - - 4.0
|
|
|
|
mouse_on - - 4.0
|
|
|
|
mouse_off - - 4.0
|
|
|
|
request_mouse_pos - - 4.0
|
|
|
|
map_button - - 4.0
|
|
|
|
wmouse_position - - 4.0
|
|
|
|
getmouse - - 4.0
|
|
|
|
getbmap - - 4.0
|
|
|
|
mouseinterval - - -
|
|
|
|
wenclose - - -
|
|
|
|
wmouse_trafo - - -
|
|
|
|
mouse_trafo - - -
|
|
|
|
mousemask - - -
|
|
|
|
nc_getmouse - - -
|
|
|
|
ungetmouse - - -
|
|
|
|
|
|
|
|
**man-end****************************************************************/
|
|
|
|
|
|
|
|
#include <string.h>
|
|
|
|
|
|
|
|
static bool ungot = FALSE;
|
|
|
|
|
|
|
|
int mouse_set(unsigned long mbe)
|
|
|
|
{
|
|
|
|
PDC_LOG(("mouse_set() - called: event %x\n", mbe));
|
|
|
|
|
|
|
|
SP->_trap_mbe = mbe;
|
|
|
|
return PDC_mouse_set();
|
|
|
|
}
|
|
|
|
|
|
|
|
int mouse_on(unsigned long mbe)
|
|
|
|
{
|
|
|
|
PDC_LOG(("mouse_on() - called: event %x\n", mbe));
|
|
|
|
|
|
|
|
SP->_trap_mbe |= mbe;
|
|
|
|
return PDC_mouse_set();
|
|
|
|
}
|
|
|
|
|
|
|
|
int mouse_off(unsigned long mbe)
|
|
|
|
{
|
|
|
|
PDC_LOG(("mouse_off() - called: event %x\n", mbe));
|
|
|
|
|
|
|
|
SP->_trap_mbe &= ~mbe;
|
|
|
|
return PDC_mouse_set();
|
|
|
|
}
|
|
|
|
|
|
|
|
int map_button(unsigned long button)
|
|
|
|
{
|
|
|
|
PDC_LOG(("map_button() - called: button %x\n", button));
|
|
|
|
|
|
|
|
/****************** this does nothing at the moment ***************/
|
|
|
|
SP->_map_mbe_to_key = button;
|
|
|
|
|
|
|
|
return OK;
|
|
|
|
}
|
|
|
|
|
|
|
|
int request_mouse_pos(void)
|
|
|
|
{
|
|
|
|
PDC_LOG(("request_mouse_pos() - called\n"));
|
|
|
|
|
|
|
|
Mouse_status = pdc_mouse_status;
|
|
|
|
|
|
|
|
return OK;
|
|
|
|
}
|
|
|
|
|
|
|
|
void wmouse_position(WINDOW *win, int *y, int *x)
|
|
|
|
{
|
|
|
|
PDC_LOG(("wmouse_position() - called\n"));
|
|
|
|
|
|
|
|
if (win && wenclose(win, MOUSE_Y_POS, MOUSE_X_POS))
|
|
|
|
{
|
|
|
|
if (y)
|
|
|
|
*y = MOUSE_Y_POS - win->_begy;
|
|
|
|
if (x)
|
|
|
|
*x = MOUSE_X_POS - win->_begx;
|
|
|
|
}
|
|
|
|
else
|
|
|
|
{
|
|
|
|
if (y)
|
|
|
|
*y = -1;
|
|
|
|
if (x)
|
|
|
|
*x = -1;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
unsigned long getmouse(void)
|
|
|
|
{
|
|
|
|
PDC_LOG(("getmouse() - called\n"));
|
|
|
|
|
|
|
|
return SP->_trap_mbe;
|
|
|
|
}
|
|
|
|
|
|
|
|
unsigned long getbmap(void)
|
|
|
|
{
|
|
|
|
PDC_LOG(("getbmap() - called\n"));
|
|
|
|
|
|
|
|
return SP->_map_mbe_to_key;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* ncurses mouse interface */
|
|
|
|
|
|
|
|
int mouseinterval(int wait)
|
|
|
|
{
|
|
|
|
int old_wait;
|
|
|
|
|
|
|
|
PDC_LOG(("mouseinterval() - called: %d\n", wait));
|
|
|
|
|
|
|
|
old_wait = SP->mouse_wait;
|
|
|
|
|
|
|
|
if (wait >= 0 && wait <= 1000)
|
|
|
|
SP->mouse_wait = wait;
|
|
|
|
|
|
|
|
return old_wait;
|
|
|
|
}
|
|
|
|
|
|
|
|
bool wenclose(const WINDOW *win, int y, int x)
|
|
|
|
{
|
|
|
|
PDC_LOG(("wenclose() - called: %p %d %d\n", win, y, x));
|
|
|
|
|
|
|
|
return (win && y >= win->_begy && y < win->_begy + win->_maxy
|
|
|
|
&& x >= win->_begx && x < win->_begx + win->_maxx);
|
|
|
|
}
|
|
|
|
|
|
|
|
bool wmouse_trafo(const WINDOW *win, int *y, int *x, bool to_screen)
|
|
|
|
{
|
|
|
|
int newy, newx;
|
|
|
|
|
|
|
|
PDC_LOG(("wmouse_trafo() - called\n"));
|
|
|
|
|
|
|
|
if (!win || !y || !x)
|
|
|
|
return FALSE;
|
|
|
|
|
|
|
|
newy = *y;
|
|
|
|
newx = *x;
|
|
|
|
|
|
|
|
if (to_screen)
|
|
|
|
{
|
|
|
|
newy += win->_begy;
|
|
|
|
newx += win->_begx;
|
|
|
|
|
|
|
|
if (!wenclose(win, newy, newx))
|
|
|
|
return FALSE;
|
|
|
|
}
|
|
|
|
else
|
|
|
|
{
|
|
|
|
if (wenclose(win, newy, newx))
|
|
|
|
{
|
|
|
|
newy -= win->_begy;
|
|
|
|
newx -= win->_begx;
|
|
|
|
}
|
|
|
|
else
|
|
|
|
return FALSE;
|
|
|
|
}
|
|
|
|
|
|
|
|
*y = newy;
|
|
|
|
*x = newx;
|
|
|
|
|
|
|
|
return TRUE;
|
|
|
|
}
|
|
|
|
|
|
|
|
bool mouse_trafo(int *y, int *x, bool to_screen)
|
|
|
|
{
|
|
|
|
PDC_LOG(("mouse_trafo() - called\n"));
|
|
|
|
|
|
|
|
return wmouse_trafo(stdscr, y, x, to_screen);
|
|
|
|
}
|
|
|
|
|
|
|
|
mmask_t mousemask(mmask_t mask, mmask_t *oldmask)
|
|
|
|
{
|
|
|
|
PDC_LOG(("mousemask() - called\n"));
|
|
|
|
|
|
|
|
if (oldmask)
|
|
|
|
*oldmask = SP->_trap_mbe;
|
|
|
|
|
2011-10-31 20:54:00 +01:00
|
|
|
/* The ncurses interface doesn't work with our move events, so
|
2011-07-07 15:41:53 +02:00
|
|
|
filter them here */
|
|
|
|
|
|
|
|
mask &= ~(BUTTON1_MOVED | BUTTON2_MOVED | BUTTON3_MOVED);
|
|
|
|
|
|
|
|
mouse_set(mask);
|
|
|
|
|
|
|
|
return SP->_trap_mbe;
|
|
|
|
}
|
|
|
|
|
|
|
|
int nc_getmouse(MEVENT *event)
|
|
|
|
{
|
|
|
|
int i;
|
|
|
|
mmask_t bstate = 0;
|
|
|
|
|
|
|
|
PDC_LOG(("nc_getmouse() - called\n"));
|
|
|
|
|
|
|
|
if (!event)
|
|
|
|
return ERR;
|
|
|
|
|
|
|
|
ungot = FALSE;
|
|
|
|
|
|
|
|
request_mouse_pos();
|
|
|
|
|
|
|
|
event->id = 0;
|
|
|
|
|
|
|
|
event->x = Mouse_status.x;
|
|
|
|
event->y = Mouse_status.y;
|
|
|
|
event->z = 0;
|
|
|
|
|
|
|
|
for (i = 0; i < 3; i++)
|
|
|
|
{
|
|
|
|
if (Mouse_status.changes & (1 << i))
|
|
|
|
{
|
|
|
|
int shf = i * 5;
|
|
|
|
short button = Mouse_status.button[i] & BUTTON_ACTION_MASK;
|
|
|
|
|
|
|
|
if (button == BUTTON_RELEASED)
|
|
|
|
bstate |= (BUTTON1_RELEASED << shf);
|
|
|
|
else if (button == BUTTON_PRESSED)
|
|
|
|
bstate |= (BUTTON1_PRESSED << shf);
|
|
|
|
else if (button == BUTTON_CLICKED)
|
|
|
|
bstate |= (BUTTON1_CLICKED << shf);
|
|
|
|
else if (button == BUTTON_DOUBLE_CLICKED)
|
|
|
|
bstate |= (BUTTON1_DOUBLE_CLICKED << shf);
|
|
|
|
|
|
|
|
button = Mouse_status.button[i] & BUTTON_MODIFIER_MASK;
|
|
|
|
|
|
|
|
if (button & PDC_BUTTON_SHIFT)
|
|
|
|
bstate |= BUTTON_MODIFIER_SHIFT;
|
|
|
|
if (button & PDC_BUTTON_CONTROL)
|
|
|
|
bstate |= BUTTON_MODIFIER_CONTROL;
|
|
|
|
if (button & PDC_BUTTON_ALT)
|
|
|
|
bstate |= BUTTON_MODIFIER_ALT;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
if (MOUSE_WHEEL_UP)
|
|
|
|
bstate |= BUTTON4_PRESSED;
|
|
|
|
else if (MOUSE_WHEEL_DOWN)
|
|
|
|
bstate |= BUTTON5_PRESSED;
|
|
|
|
|
|
|
|
/* extra filter pass -- mainly for button modifiers */
|
|
|
|
|
|
|
|
event->bstate = bstate & SP->_trap_mbe;
|
|
|
|
|
|
|
|
return OK;
|
|
|
|
}
|
|
|
|
|
|
|
|
int ungetmouse(MEVENT *event)
|
|
|
|
{
|
|
|
|
int i;
|
|
|
|
unsigned long bstate;
|
|
|
|
|
|
|
|
PDC_LOG(("ungetmouse() - called\n"));
|
|
|
|
|
|
|
|
if (!event || ungot)
|
|
|
|
return ERR;
|
|
|
|
|
|
|
|
ungot = TRUE;
|
|
|
|
|
|
|
|
pdc_mouse_status.x = event->x;
|
|
|
|
pdc_mouse_status.y = event->y;
|
|
|
|
|
|
|
|
pdc_mouse_status.changes = 0;
|
|
|
|
bstate = event->bstate;
|
|
|
|
|
|
|
|
for (i = 0; i < 3; i++)
|
|
|
|
{
|
|
|
|
int shf = i * 5;
|
|
|
|
short button = 0;
|
|
|
|
|
2011-10-31 20:54:00 +01:00
|
|
|
if (bstate & ((BUTTON1_RELEASED | BUTTON1_PRESSED |
|
2011-07-07 15:41:53 +02:00
|
|
|
BUTTON1_CLICKED | BUTTON1_DOUBLE_CLICKED) << shf))
|
|
|
|
{
|
|
|
|
pdc_mouse_status.changes |= 1 << i;
|
|
|
|
|
|
|
|
if (bstate & (BUTTON1_PRESSED << shf))
|
|
|
|
button = BUTTON_PRESSED;
|
|
|
|
if (bstate & (BUTTON1_CLICKED << shf))
|
|
|
|
button = BUTTON_CLICKED;
|
|
|
|
if (bstate & (BUTTON1_DOUBLE_CLICKED << shf))
|
|
|
|
button = BUTTON_DOUBLE_CLICKED;
|
|
|
|
|
|
|
|
if (bstate & BUTTON_MODIFIER_SHIFT)
|
|
|
|
button |= PDC_BUTTON_SHIFT;
|
|
|
|
if (bstate & BUTTON_MODIFIER_CONTROL)
|
|
|
|
button |= PDC_BUTTON_CONTROL;
|
|
|
|
if (bstate & BUTTON_MODIFIER_ALT)
|
|
|
|
button |= PDC_BUTTON_ALT;
|
|
|
|
}
|
|
|
|
|
|
|
|
pdc_mouse_status.button[i] = button;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (bstate & BUTTON4_PRESSED)
|
|
|
|
pdc_mouse_status.changes |= PDC_MOUSE_WHEEL_UP;
|
|
|
|
else if (bstate & BUTTON5_PRESSED)
|
|
|
|
pdc_mouse_status.changes |= PDC_MOUSE_WHEEL_DOWN;
|
|
|
|
|
|
|
|
return ungetch(KEY_MOUSE);
|
|
|
|
}
|