]> ncurses.scripts.mit.edu Git - ncurses.git/blobdiff - ncurses/win32con/win_driver.c
ncurses 5.9 - patch 20140222
[ncurses.git] / ncurses / win32con / win_driver.c
index 51e4d0f5d999fcb61b2659157610db6c22e6f7ee..c664d92387cc85a9608b7dd3dcbe37006c923cd3 100644 (file)
@@ -1,5 +1,5 @@
 /****************************************************************************
- * Copyright (c) 1998-2012,2013 Free Software Foundation, Inc.              *
+ * Copyright (c) 1998-2013,2014 Free Software Foundation, Inc.              *
  *                                                                          *
  * Permission is hereby granted, free of charge, to any person obtaining a  *
  * copy of this software and associated documentation files (the            *
 /*
  * TODO - GetMousePos(POINT * result) from ntconio.c
  * TODO - implement nodelay
+ * TODO - when $NCGDB is set, implement non-buffered output, like PDCurses
  */
 
 #include <curses.priv.h>
 #define CUR my_term.type.
 
-MODULE_ID("$Id: win_driver.c,v 1.18 2013/03/02 19:48:06 tom Exp $")
+MODULE_ID("$Id: win_driver.c,v 1.24 2014/02/23 01:23:29 tom Exp $")
 
 #define WINMAGIC NCDRV_MAGIC(NCDRV_WINCONSOLE)
 
@@ -51,6 +52,8 @@ MODULE_ID("$Id: win_driver.c,v 1.18 2013/03/02 19:48:06 tom Exp $")
 
 #define GenMap(vKey,key) MAKELONG(key, vKey)
 
+#define AdjustY(p) ((p)->buffered ? 0 : (int) (p)->SBI.srWindow.Top)
+
 static const LONG keylist[] =
 {
     GenMap(VK_PRIOR, KEY_PPAGE),
@@ -76,6 +79,9 @@ typedef struct props {
     DWORD map[MAPSIZE];
     DWORD rmap[MAPSIZE];
     WORD pairs[NUMPAIRS];
+    bool buffered;
+    COORD origin;
+    CHAR_INFO *save_screen;
 } Properties;
 
 #define PropOf(TCB) ((Properties*)TCB->prop)
@@ -157,6 +163,7 @@ con_write16(TERMINAL_CONTROL_BLOCK * TCB, int y, int x, cchar_t *str, int limit)
     int i;
     cchar_t ch;
     SCREEN *sp;
+    Properties *p = PropOf(TCB);
 
     AssertTCB();
 
@@ -191,7 +198,7 @@ con_write16(TERMINAL_CONTROL_BLOCK * TCB, int y, int x, cchar_t *str, int limit)
     siz.Y = 1;
 
     rec.Left = (short) x;
-    rec.Top = (short) y;
+    rec.Top = (SHORT) (y + AdjustY(p));
     rec.Right = (short) (x + limit - 1);
     rec.Bottom = rec.Top;
 
@@ -222,7 +229,7 @@ con_write8(TERMINAL_CONTROL_BLOCK * TCB, int y, int x, chtype *str, int n)
        if (ChAttrOf(ch) & A_ALTCHARSET) {
            if (sp->_acs_map)
                ci[i].Char.AsciiChar =
-                   ChCharOf(NCURSES_SP_NAME(_nc_acs_char) (sp, ChCharOf(ch)));
+               ChCharOf(NCURSES_SP_NAME(_nc_acs_char) (sp, ChCharOf(ch)));
        }
     }
 
@@ -368,7 +375,7 @@ drv_doupdate(TERMINAL_CONTROL_BLOCK * TCB)
                con_write(TCB, y, 0, empty, Width);
                memcpy(empty,
                       CurScreen(sp)->_line[y].text,
-                      Width * sizeof(empty[0]));
+                      (size_t) Width * sizeof(empty[0]));
            }
            CurScreen(sp)->_clear = FALSE;
            NewScreen(sp)->_clear = FALSE;
@@ -409,7 +416,7 @@ drv_doupdate(TERMINAL_CONTROL_BLOCK * TCB)
                if (n > 0) {
                    memcpy(&CurScreen(sp)->_line[y].text[x0],
                           &NewScreen(sp)->_line[y].text[x0],
-                          n * sizeof(CurScreen(sp)->_line[y].text[x0]));
+                          (size_t) n * sizeof(CurScreen(sp)->_line[y].text[x0]));
                    con_write(TCB,
                              y,
                              x0,
@@ -469,7 +476,7 @@ drv_CanHandle(TERMINAL_CONTROL_BLOCK * TCB,
        int status;
 
        code = FALSE;
-#if (USE_DATABASE || USE_TERMCAP)
+#if (NCURSES_USE_DATABASE || NCURSES_USE_TERMCAP)
        status = _nc_setup_tinfo(tname, &my_term.type);
 #else
        status = TGETENT_NO;
@@ -492,7 +499,7 @@ drv_CanHandle(TERMINAL_CONTROL_BLOCK * TCB,
 
     if (code) {
        if ((TCB->term.type.Booleans) == 0) {
-           _nc_init_entry(&(TCB->term.type));
+           _nc_init_termtype(&(TCB->term.type));
        }
     }
 
@@ -539,6 +546,41 @@ drv_defaultcolors(TERMINAL_CONTROL_BLOCK * TCB,
     return (code);
 }
 
+static bool
+get_SBI(TERMINAL_CONTROL_BLOCK * TCB)
+{
+    bool rc = FALSE;
+    Properties *p = PropOf(TCB);
+    if (GetConsoleScreenBufferInfo(TCB->hdl, &(p->SBI))) {
+       T(("GetConsoleScreenBufferInfo"));
+       T(("... buffer(X:%d Y:%d)",
+          p->SBI.dwSize.X,
+          p->SBI.dwSize.Y));
+       T(("... window(X:%d Y:%d)",
+          p->SBI.dwMaximumWindowSize.X,
+          p->SBI.dwMaximumWindowSize.Y));
+       T(("... cursor(X:%d Y:%d)",
+          p->SBI.dwCursorPosition.X,
+          p->SBI.dwCursorPosition.Y));
+       T(("... display(Top:%d Bottom:%d Left:%d Right:%d)",
+          p->SBI.srWindow.Top,
+          p->SBI.srWindow.Bottom,
+          p->SBI.srWindow.Left,
+          p->SBI.srWindow.Right));
+       if (p->buffered) {
+           p->origin.X = 0;
+           p->origin.Y = 0;
+       } else {
+           p->origin.X = p->SBI.srWindow.Left;
+           p->origin.Y = p->SBI.srWindow.Top;
+       }
+       rc = TRUE;
+    } else {
+       T(("GetConsoleScreenBufferInfo ERR"));
+    }
+    return rc;
+}
+
 static void
 drv_setcolor(TERMINAL_CONTROL_BLOCK * TCB,
             int fore,
@@ -547,11 +589,12 @@ drv_setcolor(TERMINAL_CONTROL_BLOCK * TCB,
 {
     AssertTCB();
 
-    if (okConsoleHandle(TCB)) {
+    if (okConsoleHandle(TCB) &&
+       PropOf(TCB) != 0) {
        WORD a = MapColor(fore, color);
-       a = ((PropOf(TCB)->SBI.wAttributes) & (fore ? 0xfff8 : 0xff8f)) | a;
+       a |= (WORD) ((PropOf(TCB)->SBI.wAttributes) & (fore ? 0xfff8 : 0xff8f));
        SetConsoleTextAttribute(TCB->hdl, a);
-       GetConsoleScreenBufferInfo(TCB->hdl, &(PropOf(TCB)->SBI));
+       get_SBI(TCB);
     }
 }
 
@@ -564,7 +607,7 @@ drv_rescol(TERMINAL_CONTROL_BLOCK * TCB)
     if (okConsoleHandle(TCB)) {
        WORD a = FOREGROUND_BLUE | FOREGROUND_RED | FOREGROUND_GREEN;
        SetConsoleTextAttribute(TCB->hdl, a);
-       GetConsoleScreenBufferInfo(TCB->hdl, &(PropOf(TCB)->SBI));
+       get_SBI(TCB);
        res = TRUE;
     }
     return res;
@@ -592,10 +635,18 @@ drv_size(TERMINAL_CONTROL_BLOCK * TCB, int *Lines, int *Cols)
     T((T_CALLED("win32con::drv_size(%p)"), TCB));
 
     if (okConsoleHandle(TCB) &&
+       PropOf(TCB) != 0 &&
        Lines != NULL &&
        Cols != NULL) {
-       *Lines = (int) (PropOf(TCB)->SBI.dwSize.Y);
-       *Cols = (int) (PropOf(TCB)->SBI.dwSize.X);
+       if (PropOf(TCB)->buffered) {
+           *Lines = (int) (PropOf(TCB)->SBI.dwSize.Y);
+           *Cols = (int) (PropOf(TCB)->SBI.dwSize.X);
+       } else {
+           *Lines = (int) (PropOf(TCB)->SBI.srWindow.Bottom + 1 -
+                           PropOf(TCB)->SBI.srWindow.Top);
+           *Cols = (int) (PropOf(TCB)->SBI.srWindow.Right + 1 -
+                          PropOf(TCB)->SBI.srWindow.Left);
+       }
        result = OK;
     }
     returnCode(result);
@@ -631,17 +682,17 @@ drv_sgmode(TERMINAL_CONTROL_BLOCK * TCB, int setFlag, TTY * buf)
        if (lflag & ICANON)
            dwFlag |= ENABLE_LINE_INPUT;
        else
-           dwFlag &= ~ENABLE_LINE_INPUT;
+           dwFlag &= (DWORD) (~ENABLE_LINE_INPUT);
 
        if (lflag & ECHO)
            dwFlag |= ENABLE_ECHO_INPUT;
        else
-           dwFlag &= ~ENABLE_ECHO_INPUT;
+           dwFlag &= (DWORD) (~ENABLE_ECHO_INPUT);
 
        if (iflag & BRKINT)
            dwFlag |= ENABLE_PROCESSED_INPUT;
        else
-           dwFlag &= ~ENABLE_PROCESSED_INPUT;
+           dwFlag &= (DWORD) (~ENABLE_PROCESSED_INPUT);
 
        dwFlag |= ENABLE_MOUSE_INPUT;
 
@@ -657,17 +708,17 @@ drv_sgmode(TERMINAL_CONTROL_BLOCK * TCB, int setFlag, TTY * buf)
        if (dwFlag & ENABLE_LINE_INPUT)
            lflag |= ICANON;
        else
-           lflag &= ~ICANON;
+           lflag &= (tcflag_t) (~ICANON);
 
        if (dwFlag & ENABLE_ECHO_INPUT)
            lflag |= ECHO;
        else
-           lflag &= ~ECHO;
+           lflag &= (tcflag_t) (~ECHO);
 
        if (dwFlag & ENABLE_PROCESSED_INPUT)
            iflag |= BRKINT;
        else
-           iflag &= ~BRKINT;
+           iflag &= (tcflag_t) (~BRKINT);
 
        TCB->term.Nttyb.c_iflag = iflag;
        TCB->term.Nttyb.c_lflag = lflag;
@@ -694,7 +745,7 @@ drv_mode(TERMINAL_CONTROL_BLOCK * TCB, int progFlag, int defFlag)
     if (progFlag) /* prog mode */  {
        if (defFlag) {
            if ((drv_sgmode(TCB, FALSE, &(_term->Nttyb)) == OK)) {
-               _term->Nttyb.c_oflag &= ~OFLAGS_TABS;
+               _term->Nttyb.c_oflag &= (tcflag_t) (~OFLAGS_TABS);
                code = OK;
            }
        } else {
@@ -793,6 +844,92 @@ drv_release(TERMINAL_CONTROL_BLOCK * TCB)
     returnVoid;
 }
 
+/*
+ * Attempt to save the screen contents.  PDCurses does this if
+ * PDC_RESTORE_SCREEN is set, giving the same visual appearance on restoration
+ * as if the library had allocated a console buffer.
+ */
+static bool
+save_original_screen(TERMINAL_CONTROL_BLOCK * TCB)
+{
+    bool result = FALSE;
+    Properties *p = PropOf(TCB);
+    COORD bufferSize;
+    COORD bufferCoord;
+    SMALL_RECT readRegion;
+    size_t want;
+
+    bufferSize.X = p->SBI.dwSize.X;
+    bufferSize.Y = p->SBI.dwSize.Y;
+    want = (size_t) (bufferSize.X * bufferSize.Y);
+
+    if ((p->save_screen = malloc(want * sizeof(CHAR_INFO))) != 0) {
+       bufferCoord.X = bufferCoord.Y = 0;
+
+       readRegion.Top = 0;
+       readRegion.Left = 0;
+       readRegion.Bottom = (SHORT) (bufferSize.Y - 1);
+       readRegion.Right = (SHORT) (bufferSize.X - 1);
+
+       T(("... reading console buffer %dx%d into %d,%d - %d,%d at %d,%d",
+          bufferSize.Y, bufferSize.X,
+          readRegion.Top,
+          readRegion.Left,
+          readRegion.Bottom,
+          readRegion.Right,
+          bufferCoord.Y,
+          bufferCoord.X));
+
+       if (ReadConsoleOutput(TCB->hdl,
+                             p->save_screen,
+                             bufferSize,
+                             bufferCoord,
+                             &readRegion)) {
+           result = TRUE;
+       } else {
+           T((" error %#lx", (unsigned long) GetLastError()));
+           FreeAndNull(p->save_screen);
+
+           bufferSize.X = (SHORT) (p->SBI.srWindow.Right
+                                   - p->SBI.srWindow.Left + 1);
+           bufferSize.Y = (SHORT) (p->SBI.srWindow.Bottom
+                                   - p->SBI.srWindow.Top + 1);
+           want = (size_t) (bufferSize.X * bufferSize.Y);
+
+           if ((p->save_screen = malloc(want * sizeof(CHAR_INFO))) != 0) {
+               bufferCoord.X = bufferCoord.Y = 0;
+
+               readRegion.Top = p->SBI.srWindow.Top;
+               readRegion.Left = p->SBI.srWindow.Left;
+               readRegion.Bottom = p->SBI.srWindow.Bottom;
+               readRegion.Right = p->SBI.srWindow.Right;
+
+               T(("... reading console window %dx%d into %d,%d - %d,%d at %d,%d",
+                  bufferSize.Y, bufferSize.X,
+                  readRegion.Top,
+                  readRegion.Left,
+                  readRegion.Bottom,
+                  readRegion.Right,
+                  bufferCoord.Y,
+                  bufferCoord.X));
+
+               if (ReadConsoleOutput(TCB->hdl,
+                                     p->save_screen,
+                                     bufferSize,
+                                     bufferCoord,
+                                     &readRegion)) {
+                   result = TRUE;
+               } else {
+                   T((" error %#lx", (unsigned long) GetLastError()));
+               }
+           }
+       }
+    }
+
+    T(("... save original screen contents %s", result ? "ok" : "err"));
+    return result;
+}
+
 static void
 drv_init(TERMINAL_CONTROL_BLOCK * TCB)
 {
@@ -806,6 +943,7 @@ drv_init(TERMINAL_CONTROL_BLOCK * TCB)
        BOOL b = AllocConsole();
        WORD a;
        int i;
+       bool buffered = TRUE;
 
        if (!b)
            b = AttachConsole(ATTACH_PARENT_PROCESS);
@@ -813,18 +951,31 @@ drv_init(TERMINAL_CONTROL_BLOCK * TCB)
        TCB->inp = GetStdHandle(STD_INPUT_HANDLE);
        TCB->out = GetStdHandle(STD_OUTPUT_HANDLE);
 
-       if (getenv("NCGDB"))
+       if (getenv("NCGDB")) {
            TCB->hdl = TCB->out;
-       else
+           buffered = FALSE;
+       } else {
            TCB->hdl = CreateConsoleScreenBuffer(GENERIC_READ | GENERIC_WRITE,
                                                 0,
                                                 NULL,
                                                 CONSOLE_TEXTMODE_BUFFER,
                                                 NULL);
+       }
 
-       if (!InvalidConsoleHandle(TCB->hdl)) {
-           TCB->prop = typeCalloc(Properties, 1);
-           GetConsoleScreenBufferInfo(TCB->hdl, &(PropOf(TCB)->SBI));
+       if (InvalidConsoleHandle(TCB->hdl)) {
+           returnVoid;
+       } else if ((TCB->prop = typeCalloc(Properties, 1)) != 0) {
+           PropOf(TCB)->buffered = buffered;
+           if (!get_SBI(TCB)) {
+               FreeAndNull(TCB->prop);         /* force error in drv_size */
+               returnVoid;
+           }
+           if (!buffered) {
+               if (!save_original_screen(TCB)) {
+                   FreeAndNull(TCB->prop);     /* force error in drv_size */
+                   returnVoid;
+               }
+           }
        }
 
        TCB->info.initcolor = TRUE;
@@ -842,7 +993,7 @@ drv_init(TERMINAL_CONTROL_BLOCK * TCB)
 
        if (GetNumberOfConsoleMouseButtons(&num_buttons)) {
            T(("mouse has %ld buttons", num_buttons));
-           TCB->info.numbuttons = num_buttons;
+           TCB->info.numbuttons = (int) num_buttons;
        } else {
            TCB->info.numbuttons = 1;
        }
@@ -851,7 +1002,7 @@ drv_init(TERMINAL_CONTROL_BLOCK * TCB)
 
        for (i = 0; i < (N_INI + FKEYS); i++) {
            if (i < N_INI)
-               PropOf(TCB)->rmap[i] = PropOf(TCB)->map[i] = keylist[i];
+               PropOf(TCB)->rmap[i] = PropOf(TCB)->map[i] = (DWORD) keylist[i];
            else
                PropOf(TCB)->rmap[i] = PropOf(TCB)->map[i] =
                    GenMap((VK_F1 + (i - N_INI)), (KEY_F(1) + (i - N_INI)));
@@ -956,9 +1107,10 @@ drv_mvcur(TERMINAL_CONTROL_BLOCK * TCB,
 {
     int ret = ERR;
     if (okConsoleHandle(TCB)) {
+       Properties *p = PropOf(TCB);
        COORD loc;
        loc.X = (short) x;
-       loc.Y = (short) y;
+       loc.Y = (short) (y + AdjustY(p));
        SetConsoleCursorPosition(TCB->hdl, loc);
        ret = OK;
     }
@@ -1044,7 +1196,7 @@ drv_initacs(TERMINAL_CONTROL_BLOCK * TCB,
     SetSP();
 
     for (n = 0; n < SIZEOF(table); ++n) {
-       real_map[table[n].acs_code] = table[n].use_code | A_ALTCHARSET;
+       real_map[table[n].acs_code] = (chtype) table[n].use_code | A_ALTCHARSET;
        if (sp != 0)
            sp->_screen_acs_map[table[n].acs_code] = TRUE;
     }
@@ -1131,7 +1283,7 @@ drv_twait(TERMINAL_CONTROL_BLOCK * TCB,
     SCREEN *sp;
     INPUT_RECORD inp_rec;
     BOOL b;
-    DWORD nRead = 0, rc = -1;
+    DWORD nRead = 0, rc = (DWORD) (-1);
     int code = 0;
     FILETIME fstart;
     FILETIME fend;
@@ -1153,7 +1305,7 @@ drv_twait(TERMINAL_CONTROL_BLOCK * TCB,
 
     while (true) {
        GetSystemTimeAsFileTime(&fstart);
-       rc = WaitForSingleObject(TCB->inp, milliseconds);
+       rc = WaitForSingleObject(TCB->inp, (DWORD) milliseconds);
        GetSystemTimeAsFileTime(&fend);
        diff = (int) tdiff(fstart, fend);
        milliseconds = Adjust(milliseconds, diff);
@@ -1245,23 +1397,26 @@ handle_mouse(TERMINAL_CONTROL_BLOCK * TCB, MOUSE_EVENT_RECORD mer)
      * FIXME: implement continuous event-tracking.
      */
     if (sp->_drv_mouse_new_buttons != sp->_drv_mouse_old_buttons) {
+       Properties *p = PropOf(TCB);
 
        memset(&work, 0, sizeof(work));
 
        if (sp->_drv_mouse_new_buttons) {
 
-           work.bstate |= decode_mouse(TCB, sp->_drv_mouse_new_buttons);
+           work.bstate |= (mmask_t) decode_mouse(TCB, sp->_drv_mouse_new_buttons);
 
        } else {
 
            /* cf: BUTTON_PRESSED, BUTTON_RELEASED */
-           work.bstate |= (decode_mouse(TCB, sp->_drv_mouse_old_buttons) >> 1);
+           work.bstate |= (mmask_t) (decode_mouse(TCB,
+                                                  sp->_drv_mouse_old_buttons)
+                                     >> 1);
 
            result = TRUE;
        }
 
        work.x = mer.dwMousePosition.X;
-       work.y = mer.dwMousePosition.Y;
+       work.y = mer.dwMousePosition.Y - AdjustY(p);
 
        sp->_drv_mouse_fifo[sp->_drv_mouse_tail] = work;
        sp->_drv_mouse_tail += 1;
@@ -1322,7 +1477,7 @@ static int
 drv_nap(TERMINAL_CONTROL_BLOCK * TCB GCC_UNUSED, int ms)
 {
     T((T_CALLED("win32con::drv_nap(%p, %d)"), TCB, ms));
-    Sleep(ms);
+    Sleep((DWORD) ms);
     returnCode(OK);
 }