Eugenio Parodi
1 year ago
2 changed files with 229 additions and 0 deletions
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#!/usr/bin/env python3 |
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# MIT License |
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# |
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# Copyright (c) 2021 Eugenio Parodi <ceccopierangiolieugenio AT googlemail DOT com> |
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# |
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# Permission is hereby granted, free of charge, to any person obtaining a copy |
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# of this software and associated documentation files (the "Software"), to deal |
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# in the Software without restriction, including without limitation the rights |
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# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
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# copies of the Software, and to permit persons to whom the Software is |
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# furnished to do so, subject to the following conditions: |
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# |
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# The above copyright notice and this permission notice shall be included in all |
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# copies or substantial portions of the Software. |
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# |
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# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
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# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
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# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
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# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
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# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
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# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE |
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# SOFTWARE. |
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|
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# Example from: |
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# https://www.linuxjournal.com/article/4600 |
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# https://stackoverflow.com/questions/3794309/python-ctypes-python-file-object-c-file |
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import sys |
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from ctypes import CDLL, c_void_p, cdll, CFUNCTYPE |
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from ctypes import Structure, Union, pointer, POINTER, cast |
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from ctypes import c_short, c_int, c_char, c_ushort, c_ubyte, c_void_p |
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libgpm = CDLL('libgpm.so.2') |
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libc = cdll.LoadLibrary('libc.so.6') |
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cstdout = c_void_p.in_dll(libc, 'stdout') |
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cstdin = c_void_p.in_dll(libc, 'stdin') |
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gpm_handler = c_void_p.in_dll(libgpm, 'gpm_handler') |
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''' |
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#define GPM_MAGIC 0x47706D4C /* "GpmL" */ |
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typedef struct Gpm_Connect { |
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unsigned short eventMask, defaultMask; |
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unsigned short minMod, maxMod; |
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int pid; |
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int vc; |
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} Gpm_Connect; |
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''' |
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class Gpm_Connect(Structure): |
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_fields_ = [ |
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("eventMask", c_ushort), |
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("defaultMask", c_ushort), |
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("minMod", c_ushort), |
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("maxMod", c_ushort), |
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("pid", c_int), |
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("vc", c_int)] |
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''' |
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enum Gpm_Etype { |
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GPM_MOVE=1, |
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GPM_DRAG=2, /* exactly one of the bare ones is active at a time */ |
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GPM_DOWN=4, |
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GPM_UP= 8, |
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#define GPM_BARE_EVENTS(type) ((type)&(0x0f|GPM_ENTER|GPM_LEAVE)) |
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GPM_SINGLE=16, /* at most one in three is set */ |
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GPM_DOUBLE=32, |
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GPM_TRIPLE=64, /* WARNING: I depend on the values */ |
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GPM_MFLAG=128, /* motion during click? */ |
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GPM_HARD=256, /* if set in the defaultMask, force an already |
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used event to pass over to another handler */ |
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GPM_ENTER=512, /* enter event, user in Roi's */ |
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GPM_LEAVE=1024 /* leave event, used in Roi's */ |
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}; |
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enum Gpm_Margin {GPM_TOP=1, GPM_BOT=2, GPM_LFT=4, GPM_RGT=8}; |
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typedef struct Gpm_Event { |
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unsigned char buttons, modifiers; /* try to be a multiple of 4 */ |
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unsigned short vc; |
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short dx, dy, x, y; /* displacement x,y for this event, and absolute x,y */ |
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enum Gpm_Etype type; |
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/* clicks e.g. double click are determined by time-based processing */ |
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int clicks; |
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enum Gpm_Margin margin; |
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/* wdx/y: displacement of wheels in this event. Absolute values are not |
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* required, because wheel movement is typically used for scrolling |
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* or selecting fields, not for cursor positioning. The application |
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* can determine when the end of file or form is reached, and not |
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* go any further. |
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* A single mouse will use wdy, "vertical scroll" wheel. */ |
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short wdx, wdy; |
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} Gpm_Event; |
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''' |
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class Gpm_Event(Structure): |
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_fields_ = [ |
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("buttons", c_ubyte), |
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("modifiers", c_ubyte), |
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("vc", c_short), |
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("dx", c_short), |
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("dy", c_short), |
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("x", c_short), |
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("y", c_short), |
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("type", c_int), |
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("clicks", c_int), |
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("margin", c_int), |
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("wdx", c_short), |
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("wdy", c_short)] |
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''' |
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int my_handler(Gpm_Event *event, void *data) |
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{ |
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printf("Event Type : %d at x=%d y=%d\n", event->type, event->x, event->y); |
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return 0; |
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} |
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''' |
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# CFUNCTYPE(c_int, POINTER(Gpm_Event), c_void_p) |
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HANDLER_FUNC = CFUNCTYPE(c_int, POINTER(Gpm_Event), POINTER(c_void_p)) |
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# gpm_handler = POINTER(HANDLER_FUNC).in_dll(libgpm, 'gpm_handler') |
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def my_handler(event:Gpm_Event, data): |
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# print(f"{event=} {data=} {dir(event)=} {event.contents=}") |
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ec = event.contents |
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buttons = ec.buttons |
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modifiers = ec.modifiers |
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vc = ec.vc |
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dx = ec.dx |
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dy = ec.dy |
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x = ec.x |
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y = ec.y |
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type = ec.type |
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clicks = ec.clicks |
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margin = ec.margin |
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wdx = ec.wdx |
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wdy = ec.wdy |
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print(f"{buttons=}, {modifiers=}, {vc=}, {dx=}, {dy=}, {x=}, {y=}, {type=}, {clicks=}, {margin=}, {wdx=}, {wdy=}") |
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return 0 |
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''' |
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int main() |
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{ Gpm_Connect conn; |
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int c; |
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conn.eventMask = ~0; /* Want to know about all the events */ |
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conn.defaultMask = 0; /* don't handle anything by default */ |
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conn.minMod = 0; /* want everything */ |
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conn.maxMod = ~0; /* all modifiers included */ |
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if(Gpm_Open(&conn, 0) == -1) |
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printf("Cannot connect to mouse server\n"); |
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gpm_handler = my_handler; |
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while((c = Gpm_Getc(stdin)) != EOF) |
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printf("%c", c); |
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Gpm_Close(); |
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return 0; |
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} |
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''' |
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def main(): |
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conn = Gpm_Connect() |
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c = 0 |
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conn.eventMask = ~0 # Want to know about all the events |
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conn.defaultMask = 0 # don't handle anything by default |
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conn.minMod = 0 # want everything |
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conn.maxMod = ~0 # all modifiers included |
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print("Open Connection") |
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print(f"{libgpm.gpm_handler=} {gpm_handler=} {gpm_handler.value=} {HANDLER_FUNC(my_handler)=}") |
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# RDFM; |
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# This is one of the rare cases where "Readuing the Fucking Manual" was the only way to solve this issue |
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# Not just that but a basic knowledge of c casting annd function pointers |
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# https://docs.python.org/3/library/ctypes.html#type-conversions |
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gpm_handler.value = cast(HANDLER_FUNC(my_handler),c_void_p).value |
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print(f"{libgpm.gpm_handler=} {gpm_handler=}") |
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if (gpm_fd := libgpm.Gpm_Open(pointer(conn), 0)) == -1: |
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print("Cannot connect to mouse server\n") |
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print("Starting Loop") |
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while c := libgpm.Gpm_Getc(cstdin): |
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print(f"Key: {c=:04X} ") |
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# event = Gpm_Event() |
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# while libgpm.Gpm_GetEvent(pointer(event)) > 0: |
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# print(event) |
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# print(event) |
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libgpm.Gpm_Close() |
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if __name__ == "__main__": |
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main() |
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@ -0,0 +1,27 @@
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import curses |
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def main(stdscr): |
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curses.curs_set(0) |
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curses.mousemask(curses.ALL_MOUSE_EVENTS | curses.REPORT_MOUSE_POSITION) |
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print("\033[?1003h\n") # allows capturing mouse movement |
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while True: |
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c = stdscr.getch() |
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if c == curses.KEY_MOUSE: |
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try: |
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event = curses.getmouse() |
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x = event[2] |
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y = event[1] |
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dims = stdscr.getmaxyx() |
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stdscr.addstr(0,0,"="*dims[1]) |
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stdscr.addstr(0,dims[1]-len(str(dims)),str(dims)) |
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stdscr.addstr(0,0,str(event)) |
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if event[4] == 4: |
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stdscr.addstr(x,y,"X") |
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else: |
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stdscr.addstr(x,y,"*") |
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except: |
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pass |
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stdscr.refresh() |
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curses.wrapper(main) |
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