win32ss/user/consrv/conio.h

   1 /*
   2  * COPYRIGHT:       See COPYING in the top level directory
   3  * PROJECT:         ReactOS Console Server DLL
   4  * FILE:            win32ss/user/consrv/conio.h
   5  * PURPOSE:         Internal console I/O interface
   6  * PROGRAMMERS:
   7  */
   8
   9 #pragma once
  10
  11 #define CSR_DEFAULT_CURSOR_SIZE 25
  12
  13 /* Object type magic numbers */
  14
  15 #define CONIO_CONSOLE_MAGIC         0x00000001
  16 #define CONIO_SCREEN_BUFFER_MAGIC   0x00000002
  17
  18 /************************************************************************
  19  * Screen buffer structure represents the win32 screen buffer object.   *
  20  * Internally, the portion of the buffer being shown CAN loop past the  *
  21  * bottom of the virtual buffer and wrap around to the top.  Win32 does *
  22  * not do this.  I decided to do this because it eliminates the need to *
  23  * do a massive memcpy() to scroll the contents of the buffer up to     *
  24  * scroll the screen on output, instead I just shift down the position  *
  25  * to be displayed, and let it wrap around to the top again.            *
  26  * The VirtualY member keeps track of the top Y coord that win32        *
  27  * clients THINK is currently being displayed, because they think that  *
  28  * when the display reaches the bottom of the buffer and another line   *
  29  * being printed causes another line to scroll down, that the buffer IS *
  30  * memcpy()'s up, and the bottom of the buffer is still displayed, but  *
  31  * internally, I just wrap back to the top of the buffer.               *
  32  ***********************************************************************/
  33
  34 typedef struct tagCSRSS_SCREEN_BUFFER
  35 {
  36     Object_t Header;                 /* Object header */
  37     BYTE *Buffer;                    /* pointer to screen buffer */
  38     USHORT MaxX, MaxY;               /* size of the entire scrollback buffer */
  39     USHORT ShowX, ShowY;             /* beginning offset for the actual display area */
  40     ULONG CurrentX;                  /* Current X cursor position */
  41     ULONG CurrentY;                  /* Current Y cursor position */
  42     WORD DefaultAttrib;              /* default char attribute */
  43     USHORT VirtualY;                 /* top row of buffer being displayed, reported to callers */
  44     CONSOLE_CURSOR_INFO CursorInfo;
  45     USHORT Mode;
  46     LIST_ENTRY ListEntry;            /* entry in console's list of buffers */
  47 } CSRSS_SCREEN_BUFFER, *PCSRSS_SCREEN_BUFFER;
  48
  49 typedef struct tagCSRSS_CONSOLE
  50 {
  51     Object_t Header;                      /* Object header */
  52     LONG ReferenceCount;
  53     CRITICAL_SECTION Lock;
  54     struct tagCSRSS_CONSOLE *Prev, *Next; /* Next and Prev consoles in console wheel */
  55     HANDLE ActiveEvent;
  56
  57     LIST_ENTRY ReadWaitQueue;             /* List head for the queue of read wait blocks */
  58
  59     LIST_ENTRY InputEvents;               /* List head for input event queue */
  60     PWCHAR LineBuffer;                    /* current line being input, in line buffered mode */
  61     WORD LineMaxSize;                     /* maximum size of line in characters (including CR+LF) */
  62     WORD LineSize;                        /* current size of line */
  63     WORD LinePos;                         /* current position within line */
  64     BOOLEAN LineComplete;                 /* user pressed enter, ready to send back to client */
  65     BOOLEAN LineUpPressed;
  66     BOOLEAN LineInsertToggle;             /* replace character over cursor instead of inserting */
  67     ULONG LineWakeupMask;                 /* bitmap of which control characters will end line input */
  68     LIST_ENTRY HistoryBuffers;
  69     UINT HistoryBufferSize;               /* size for newly created history buffers */
  70     UINT NumberOfHistoryBuffers;          /* maximum number of history buffers allowed */
  71     BOOLEAN HistoryNoDup;                 /* remove old duplicate history entries */
  72     LIST_ENTRY BufferList;                /* List of all screen buffers for this console */
  73     PCSRSS_SCREEN_BUFFER ActiveBuffer;    /* Pointer to currently active screen buffer */
  74     WORD Mode;                            /* Console mode flags */
  75     UNICODE_STRING Title;                 /* Title of console */
  76     DWORD HardwareState;                  /* _GDI_MANAGED, _DIRECT */
  77     HWND hWindow;
  78     COORD Size;
  79     PVOID PrivateData;
  80     UINT CodePage;
  81     UINT OutputCodePage;
  82     struct tagCSRSS_CONSOLE_VTBL *Vtbl;
  83     LIST_ENTRY ProcessList;
  84     struct tagALIAS_HEADER *Aliases;
  85     CONSOLE_SELECTION_INFO Selection;
  86     BYTE PauseFlags;
  87     HANDLE UnpauseEvent;
  88 } CSRSS_CONSOLE, *PCSRSS_CONSOLE;
  89
  90 typedef struct tagCSRSS_CONSOLE_VTBL
  91 {
  92     VOID (WINAPI *InitScreenBuffer)(PCSRSS_CONSOLE Console, PCSRSS_SCREEN_BUFFER ScreenBuffer);
  93     VOID (WINAPI *WriteStream)(PCSRSS_CONSOLE Console, SMALL_RECT *Block, LONG CursorStartX, LONG CursorStartY,
  94                                UINT ScrolledLines, CHAR *Buffer, UINT Length);
  95     VOID (WINAPI *DrawRegion)(PCSRSS_CONSOLE Console, SMALL_RECT *Region);
  96     BOOL (WINAPI *SetCursorInfo)(PCSRSS_CONSOLE Console, PCSRSS_SCREEN_BUFFER ScreenBuffer);
  97     BOOL (WINAPI *SetScreenInfo)(PCSRSS_CONSOLE Console, PCSRSS_SCREEN_BUFFER ScreenBuffer,
  98                                  UINT OldCursorX, UINT OldCursorY);
  99     BOOL (WINAPI *UpdateScreenInfo)(PCSRSS_CONSOLE Console, PCSRSS_SCREEN_BUFFER ScreenBuffer);
 100     BOOL (WINAPI *ChangeTitle)(PCSRSS_CONSOLE Console);
 101     VOID (WINAPI *CleanupConsole)(PCSRSS_CONSOLE Console);
 102     BOOL (WINAPI *ChangeIcon)(PCSRSS_CONSOLE Console, HICON hWindowIcon);
 103     NTSTATUS (WINAPI *ResizeBuffer)(PCSRSS_CONSOLE Console, PCSRSS_SCREEN_BUFFER ScreenBuffer, COORD Size);
 104 } CSRSS_CONSOLE_VTBL, *PCSRSS_CONSOLE_VTBL;
 105
 106 typedef struct ConsoleInput_t
 107 {
 108     LIST_ENTRY ListEntry;
 109     INPUT_RECORD InputEvent;
 110 } ConsoleInput;
 111
 112 /* CONSOLE_SELECTION_INFO dwFlags values */
 113 #define CONSOLE_NO_SELECTION          0x0
 114 #define CONSOLE_SELECTION_IN_PROGRESS 0x1
 115 #define CONSOLE_SELECTION_NOT_EMPTY   0x2
 116 #define CONSOLE_MOUSE_SELECTION       0x4
 117 #define CONSOLE_MOUSE_DOWN            0x8
 118 /* HistoryFlags values */
 119 #define HISTORY_NO_DUP_FLAG           0x1
 120
 121 /* PauseFlags values (internal only) */
 122 #define PAUSED_FROM_KEYBOARD  0x1
 123 #define PAUSED_FROM_SCROLLBAR 0x2
 124 #define PAUSED_FROM_SELECTION 0x4
 125
 126 #define ConioInitScreenBuffer(Console, Buff) (Console)->Vtbl->InitScreenBuffer((Console), (Buff))
 127 #define ConioDrawRegion(Console, Region) (Console)->Vtbl->DrawRegion((Console), (Region))
 128 #define ConioWriteStream(Console, Block, CurStartX, CurStartY, ScrolledLines, Buffer, Length) \
 129           (Console)->Vtbl->WriteStream((Console), (Block), (CurStartX), (CurStartY), \
 130                                        (ScrolledLines), (Buffer), (Length))
 131 #define ConioSetCursorInfo(Console, Buff) (Console)->Vtbl->SetCursorInfo((Console), (Buff))
 132 #define ConioSetScreenInfo(Console, Buff, OldCursorX, OldCursorY) \
 133           (Console)->Vtbl->SetScreenInfo((Console), (Buff), (OldCursorX), (OldCursorY))
 134 #define ConioUpdateScreenInfo(Console, Buff) \
 135           (Console)->Vtbl->UpdateScreenInfo(Console, Buff)
 136 #define ConioChangeTitle(Console) (Console)->Vtbl->ChangeTitle(Console)
 137 #define ConioCleanupConsole(Console) (Console)->Vtbl->CleanupConsole(Console)
 138 #define ConioChangeIcon(Console, hWindowIcon) (Console)->Vtbl->ChangeIcon(Console, hWindowIcon)
 139 #define ConioResizeBuffer(Console, Buff, Size) (Console)->Vtbl->ResizeBuffer(Console, Buff, Size)
 140
 141 /* console.c */
 142 NTSTATUS FASTCALL ConioConsoleFromProcessData(PCONSOLE_PROCESS_DATA ProcessData,
 143                                               PCSRSS_CONSOLE *Console);
 144 VOID WINAPI ConioDeleteConsole(Object_t *Object);
 145 VOID WINAPI CsrInitConsoleSupport(VOID);
 146 VOID FASTCALL ConioPause(PCSRSS_CONSOLE Console, UINT Flags);
 147 VOID FASTCALL ConioUnpause(PCSRSS_CONSOLE Console, UINT Flags);
 148 VOID FASTCALL ConioConsoleCtrlEvent(DWORD Event, PCONSOLE_PROCESS_DATA ProcessData);
 149 VOID FASTCALL ConioConsoleCtrlEventTimeout(DWORD Event,
 150                                            PCONSOLE_PROCESS_DATA ProcessData,
 151                                            DWORD Timeout);
 152
 153 /* coninput.c */
 154 #define ConioLockConsole(ProcessData, Handle, Ptr, Access) \
 155     Win32CsrLockObject((ProcessData), (Handle), (Object_t **)(Ptr), Access, CONIO_CONSOLE_MAGIC)
 156 #define ConioUnlockConsole(Console) \
 157     Win32CsrUnlockObject((Object_t *) Console)
 158 void WINAPI ConioProcessKey(MSG *msg, PCSRSS_CONSOLE Console, BOOL TextMode);
 159
 160 /* conoutput.c */
 161 #define ConioRectHeight(Rect) \
 162     (((Rect)->Top) > ((Rect)->Bottom) ? 0 : ((Rect)->Bottom) - ((Rect)->Top) + 1)
 163 #define ConioRectWidth(Rect) \
 164     (((Rect)->Left) > ((Rect)->Right) ? 0 : ((Rect)->Right) - ((Rect)->Left) + 1)
 165 #define ConioLockScreenBuffer(ProcessData, Handle, Ptr, Access) \
 166     Win32CsrLockObject((ProcessData), (Handle), (Object_t **)(Ptr), Access, CONIO_SCREEN_BUFFER_MAGIC)
 167 #define ConioUnlockScreenBuffer(Buff) \
 168     Win32CsrUnlockObject((Object_t *) Buff)
 169 PBYTE FASTCALL ConioCoordToPointer(PCSRSS_SCREEN_BUFFER Buf, ULONG X, ULONG Y);
 170 VOID FASTCALL ConioDrawConsole(PCSRSS_CONSOLE Console);
 171 NTSTATUS FASTCALL ConioWriteConsole(PCSRSS_CONSOLE Console, PCSRSS_SCREEN_BUFFER Buff,
 172                                     CHAR *Buffer, DWORD Length, BOOL Attrib);
 173 NTSTATUS FASTCALL CsrInitConsoleScreenBuffer(PCSRSS_CONSOLE Console, PCSRSS_SCREEN_BUFFER Buffer);
 174 VOID WINAPI ConioDeleteScreenBuffer(PCSRSS_SCREEN_BUFFER Buffer);
 175 DWORD FASTCALL ConioEffectiveCursorSize(PCSRSS_CONSOLE Console, DWORD Scale);
 176
 177 /* alias.c */
 178 VOID IntDeleteAllAliases(struct tagALIAS_HEADER *RootHeader);
 179
 180 /* lineinput.c */
 181 struct tagHISTORY_BUFFER;
 182 VOID FASTCALL HistoryDeleteBuffer(struct tagHISTORY_BUFFER *Hist);
 183 VOID FASTCALL LineInputKeyDown(PCSRSS_CONSOLE Console, KEY_EVENT_RECORD *KeyEvent);
 184
 185 /* EOF */