/* [ GPL ] Code by JaeHyuk Cho <mailto:minzkn@infoeq.com> http://minzkn.pe.ky */ #include <sys/types.h> #include <sys/select.h> #include <stdio.h> #include <stdlib.h> #include <unistd.h> #include <fcntl.h> #include <malloc.h> /* Mouse하나를 처리하기 위해서 다음과 같은 구조가 필요합니다. */ typedef struct ts_MZ_Mouse { int Handle; int GridX, GridY, PreButton, Button; int PrePositionX, PrePositionY, PositionX, PositionY; int Window[ 4 ]; }t_MZ_Mouse; t_MZ_Mouse *MZ_OpenMouse(const char *s_DeviceName) { const char *c_DeviceTable[] = { /* 마우스 장치를 여기에 지원할수 있는 경우 열거합니다. */ "/dev/mouse", "/dev/psaux", (char *)0 }; int s_Handle, s_Index; t_MZ_Mouse *s_Return; if(s_DeviceName)s_Handle = open(s_DeviceName, O_RDONLY); else s_Handle = (-1); s_Index = 0; while(s_Handle == (-1) && c_DeviceTable[s_Index])s_Handle = open(c_DeviceTable[s_Index++], O_RDONLY); if(s_Handle != (-1)) { s_Return = (t_MZ_Mouse *)malloc(sizeof(t_MZ_Mouse)); if(s_Return) { s_Return->Handle = s_Handle; s_Return->GridX = s_Return->GridY = 0; s_Return->PreButton = s_Return->Button = 0; s_Return->PrePositionX = s_Return->PrePositionY = s_Return->PositionX = s_Return->PositionY = 0; s_Return->Window[0] = s_Return->Window[1] = s_Return->Window[2] = s_Return->Window[3] = (-1); } else close(s_Handle); } else s_Return = (t_MZ_Mouse *)0; return(s_Return); } t_MZ_Mouse *MZ_CloseMouse(t_MZ_Mouse *s_Handle) { if(s_Handle) { if(s_Handle->Handle != (-1))close(s_Handle->Handle); free(s_Handle); s_Handle = (t_MZ_Mouse *)0; } return(s_Handle); } void MZ_SetupMouse(t_MZ_Mouse *s_Handle, int s_Left, int s_Top, int s_Right, int s_Bottom) { if(s_Handle) { /* 마우스의 행동범위를 제한하기 위한 영역 변수입니다. */ s_Handle->Window[0] = s_Left , s_Handle->Window[1] = s_Top; s_Handle->Window[2] = s_Right, s_Handle->Window[3] = s_Bottom; } } int MZ_DoMouse(t_MZ_Mouse *s_Handle) { int s_Return = 0, s_Check, s_ReadBytes; fd_set s_FD_Read; struct timeval s_LocalTimeVal; char s_Buffer[ 3 ]; /* 마우스 데이터 버퍼 */ if(s_Handle) { if(s_Handle->Handle != (-1)) { s_ReadBytes = 0; /* 처음 한번은 Non-blocking수준으로 select를 걸도록 합니다. */ s_LocalTimeVal.tv_sec = 0, s_LocalTimeVal.tv_usec = 1; do { /* 마우스는 3바이트 단위의 데이터를 수신하게 됩니다. 하지만 모든 마우스가 그러한 것이 아니므로 해당 마우스의 spec를 참조하세요. */ FD_ZERO(&s_FD_Read); FD_SET(s_Handle->Handle, &s_FD_Read); s_Check = select(s_Handle->Handle + 1, (fd_set *)(&s_FD_Read), (fd_set *)0, (fd_set *)0, (struct timeval *)(&s_LocalTimeVal)); /* 이 값을 조절하면 마우스가 미칠지도 모릅니다. ^^ */ s_LocalTimeVal.tv_sec = 0, s_LocalTimeVal.tv_usec = 100 * 1000; if(s_Check > 0) { s_Check = read(s_Handle->Handle, &s_Buffer[s_ReadBytes], sizeof(s_Buffer) - s_ReadBytes); if(s_Check > 0)s_ReadBytes += s_Check; } }while(s_ReadBytes < sizeof(s_Buffer) && s_Check > 0); if(s_ReadBytes >= sizeof(s_Buffer)) { s_Handle->PreButton = s_Handle->Button; s_Handle->Button = ((int)s_Buffer[ 0 ]); /* 버튼 정보 */ s_Handle->GridX = ((int)s_Buffer[ 1 ]); /* X축 */ s_Handle->GridY = -((int)s_Buffer[ 2 ]); /* Y축 역방향수 (그래픽 좌표계의 Y) */ /* 마우스 가속처리 : 4픽셀 이상 움직이면 그에 2배수를 곱한 이동좌표계로 바꿉니다. 이 작업이 없으면 마우스 움직이는게 답답합니다. 즉, 저 같은 터치패드 사용자들에게는 더욱 속터지는 일이 될겁니다. */ if(s_Handle->GridX > 4 || s_Handle->GridX < (-4))s_Handle->GridX *= 2; if(s_Handle->GridY > 4 || s_Handle->GridY < (-4))s_Handle->GridY *= 2; s_Handle->PrePositionX = s_Handle->PositionX; s_Handle->PositionX += s_Handle->GridX; s_Handle->PrePositionY = s_Handle->PositionY; s_Handle->PositionY += s_Handle->GridY; if(s_Handle->Window[0] >= 0 && s_Handle->PositionX < s_Handle->Window[0])s_Handle->PositionX = s_Handle->Window[0]; if(s_Handle->Window[1] >= 0 && s_Handle->PositionY < s_Handle->Window[1])s_Handle->PositionY = s_Handle->Window[1]; if(s_Handle->Window[2] >= 0 && s_Handle->PositionX > s_Handle->Window[2])s_Handle->PositionX = s_Handle->Window[2]; if(s_Handle->Window[3] >= 0 && s_Handle->PositionY > s_Handle->Window[3])s_Handle->PositionY = s_Handle->Window[3]; s_Return = 1; } } } return(s_Return); } int main(void) { int s_Return = 0, s_KeepData = 0; t_MZ_Mouse *s_Mouse; s_Mouse = MZ_OpenMouse((char *)0); if(s_Mouse) { MZ_SetupMouse(s_Mouse, 0, 0, 640, 480); fprintf(stdout, "Left + Right button on exit.\n"); do { if(MZ_DoMouse(s_Mouse) > 0) { s_KeepData = 1; fprintf(stdout, "\rx=%3d, y=%3d, gridx=%3d, gridy=%3d, button=0x%02x", s_Mouse->PositionX, s_Mouse->PositionY, s_Mouse->GridX, s_Mouse->GridY, s_Mouse->Button); fflush(stdout); } else { if(s_KeepData == 1) { s_KeepData = 0; fprintf(stdout, "\n"); } fprintf(stdout, "\rWait mouse%20s", ""); fflush(stdout); } }while((s_Mouse->Button & 0x03) != 0x03); fprintf(stdout, "\nEnd of mouse\n"); s_Mouse = MZ_CloseMouse(s_Mouse); } else fprintf(stdout, "Can not open mouse !\n"); return(s_Return); } /* End of source */