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Diffstat (limited to 'payloads/libpayload/curses/PDCurses-3.4/pdcurses/mouse.c')
| -rw-r--r-- | payloads/libpayload/curses/PDCurses-3.4/pdcurses/mouse.c | 429 |
1 files changed, 429 insertions, 0 deletions
diff --git a/payloads/libpayload/curses/PDCurses-3.4/pdcurses/mouse.c b/payloads/libpayload/curses/PDCurses-3.4/pdcurses/mouse.c new file mode 100644 index 0000000000..1f476dd4b9 --- /dev/null +++ b/payloads/libpayload/curses/PDCurses-3.4/pdcurses/mouse.c @@ -0,0 +1,429 @@ +/* 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 + 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 + 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 + 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 + PDCurses' BUTTON_MOVED events, mousemask() filters them out. + + 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 + getmouse()) is the classic equivalent. + + 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 + 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; + + /* The ncurses interface doesn't work with our move events, so + 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; + + if (bstate & ((BUTTON1_RELEASED | BUTTON1_PRESSED | + 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); +} |