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chromium / chromiumos / third_party / coreboot / 796af17f18554380a49d69d7768ac18ee039d711 / . / payloads / libpayload / curses / PDCurses-3.4 / x11 / x11.c
blob: 69c3199b548b668e2e525e4b341bf8856287d240 [file] [log] [blame]
/* Public Domain Curses */
#include "pdcx11.h"
RCSID("$Id: x11.c,v 1.94 2008/07/14 04:33:26 wmcbrine Exp $")
#ifdef HAVE_DECKEYSYM_H
# include <DECkeysym.h>
#endif
#ifdef HAVE_SUNKEYSYM_H
# include <Sunkeysym.h>
#endif
#ifdef HAVE_XPM_H
# include <xpm.h>
#endif
#if defined PDC_XIM
# include <Xlocale.h>
#endif
#include <stdlib.h>
#include <string.h>
#ifndef XPOINTER_TYPEDEFED
typedef char * XPointer;
#endif
#ifndef MAX_PATH
# define MAX_PATH 256
#endif
XCursesAppData xc_app_data;
#if NeedWidePrototypes
# define PDC_SCROLLBAR_TYPE double
#else
# define PDC_SCROLLBAR_TYPE float
#endif
#define MAX_COLORS 16 /* maximum of "normal" colors */
#define COLOR_CURSOR MAX_COLORS /* color of cursor */
#define COLOR_BORDER MAX_COLORS + 1 /* color of border */
#define XCURSESDISPLAY (XtDisplay(drawing))
#define XCURSESWIN (XtWindow(drawing))
/* Default icons for XCurses applications. */
#include "big_icon.xbm"
#include "little_icon.xbm"
static void _selection_off(void);
static void _display_cursor(int, int, int, int);
static void _redraw_cursor(void);
static void _exit_process(int, int, char *);
static void _send_key_to_curses(unsigned long, MOUSE_STATUS *, bool);
static void XCursesButton(Widget, XEvent *, String *, Cardinal *);
static void XCursesHandleString(Widget, XEvent *, String *, Cardinal *);
static void XCursesKeyPress(Widget, XEvent *, String *, Cardinal *);
static void XCursesPasteSelection(Widget, XButtonEvent *);
static struct
{
KeySym keycode;
bool numkeypad;
unsigned short normal;
unsigned short shifted;
unsigned short control;
unsigned short alt;
} key_table[] =
{
/* keycode keypad normal shifted control alt*/
{XK_Left, FALSE, KEY_LEFT, KEY_SLEFT, CTL_LEFT, ALT_LEFT},
{XK_Right, FALSE, KEY_RIGHT, KEY_SRIGHT, CTL_RIGHT, ALT_RIGHT},
{XK_Up, FALSE, KEY_UP, KEY_SUP, CTL_UP, ALT_UP},
{XK_Down, FALSE, KEY_DOWN, KEY_SDOWN, CTL_DOWN, ALT_DOWN},
{XK_Home, FALSE, KEY_HOME, KEY_SHOME, CTL_HOME, ALT_HOME},
/* Sun Type 4 keyboard */
{XK_R7, FALSE, KEY_HOME, KEY_SHOME, CTL_HOME, ALT_HOME},
{XK_End, FALSE, KEY_END, KEY_SEND, CTL_END, ALT_END},
/* Sun Type 4 keyboard */
{XK_R13, FALSE, KEY_END, KEY_SEND, CTL_END, ALT_END},
{XK_Prior, FALSE, KEY_PPAGE, KEY_SPREVIOUS,CTL_PGUP, ALT_PGUP},
/* Sun Type 4 keyboard */
{XK_R9, FALSE, KEY_PPAGE, KEY_SPREVIOUS,CTL_PGUP, ALT_PGUP},
{XK_Next, FALSE, KEY_NPAGE, KEY_SNEXT, CTL_PGDN, ALT_PGDN},
/* Sun Type 4 keyboard */
{XK_R15, FALSE, KEY_NPAGE, KEY_SNEXT, CTL_PGDN, ALT_PGDN},
{XK_Insert, FALSE, KEY_IC, KEY_SIC, CTL_INS, ALT_INS},
{XK_Delete, FALSE, KEY_DC, KEY_SDC, CTL_DEL, ALT_DEL},
{XK_F1, FALSE, KEY_F(1), KEY_F(13), KEY_F(25), KEY_F(37)},
{XK_F2, FALSE, KEY_F(2), KEY_F(14), KEY_F(26), KEY_F(38)},
{XK_F3, FALSE, KEY_F(3), KEY_F(15), KEY_F(27), KEY_F(39)},
{XK_F4, FALSE, KEY_F(4), KEY_F(16), KEY_F(28), KEY_F(40)},
{XK_F5, FALSE, KEY_F(5), KEY_F(17), KEY_F(29), KEY_F(41)},
{XK_F6, FALSE, KEY_F(6), KEY_F(18), KEY_F(30), KEY_F(42)},
{XK_F7, FALSE, KEY_F(7), KEY_F(19), KEY_F(31), KEY_F(43)},
{XK_F8, FALSE, KEY_F(8), KEY_F(20), KEY_F(32), KEY_F(44)},
{XK_F9, FALSE, KEY_F(9), KEY_F(21), KEY_F(33), KEY_F(45)},
{XK_F10, FALSE, KEY_F(10), KEY_F(22), KEY_F(34), KEY_F(46)},
{XK_F11, FALSE, KEY_F(11), KEY_F(23), KEY_F(35), KEY_F(47)},
{XK_F12, FALSE, KEY_F(12), KEY_F(24), KEY_F(36), KEY_F(48)},
{XK_F13, FALSE, KEY_F(13), KEY_F(25), KEY_F(37), KEY_F(49)},
{XK_F14, FALSE, KEY_F(14), KEY_F(26), KEY_F(38), KEY_F(50)},
{XK_F15, FALSE, KEY_F(15), KEY_F(27), KEY_F(39), KEY_F(51)},
{XK_F16, FALSE, KEY_F(16), KEY_F(28), KEY_F(40), KEY_F(52)},
{XK_F17, FALSE, KEY_F(17), KEY_F(29), KEY_F(41), KEY_F(53)},
{XK_F18, FALSE, KEY_F(18), KEY_F(30), KEY_F(42), KEY_F(54)},
{XK_F19, FALSE, KEY_F(19), KEY_F(31), KEY_F(43), KEY_F(55)},
{XK_F20, FALSE, KEY_F(20), KEY_F(32), KEY_F(44), KEY_F(56)},
{XK_BackSpace, FALSE, 0x08, 0x08, CTL_BKSP, ALT_BKSP},
{XK_Tab, FALSE, 0x09, KEY_BTAB, CTL_TAB, ALT_TAB},
{XK_Select, FALSE, KEY_SELECT, KEY_SELECT, KEY_SELECT, KEY_SELECT},
{XK_Print, FALSE, KEY_PRINT, KEY_SPRINT, KEY_PRINT, KEY_PRINT},
{XK_Find, FALSE, KEY_FIND, KEY_SFIND, KEY_FIND, KEY_FIND},
{XK_Pause, FALSE, KEY_SUSPEND, KEY_SSUSPEND, KEY_SUSPEND, KEY_SUSPEND},
{XK_Clear, FALSE, KEY_CLEAR, KEY_CLEAR, KEY_CLEAR, KEY_CLEAR},
{XK_Cancel, FALSE, KEY_CANCEL, KEY_SCANCEL, KEY_CANCEL, KEY_CANCEL},
{XK_Break, FALSE, KEY_BREAK, KEY_BREAK, KEY_BREAK, KEY_BREAK},
{XK_Help, FALSE, KEY_HELP, KEY_SHELP, KEY_LHELP, KEY_HELP},
{XK_L4, FALSE, KEY_UNDO, KEY_SUNDO, KEY_UNDO, KEY_UNDO},
{XK_L6, FALSE, KEY_COPY, KEY_SCOPY, KEY_COPY, KEY_COPY},
{XK_L9, FALSE, KEY_FIND, KEY_SFIND, KEY_FIND, KEY_FIND},
{XK_Menu, FALSE, KEY_OPTIONS, KEY_SOPTIONS, KEY_OPTIONS, KEY_OPTIONS},
#ifdef HAVE_SUNKEYSYM_H
{SunXK_F36, FALSE, KEY_F(41), KEY_F(43), KEY_F(45), KEY_F(47)},
{SunXK_F37, FALSE, KEY_F(42), KEY_F(44), KEY_F(46), KEY_F(48)},
#endif
#ifdef HAVE_DECKEYSYM_H
{DXK_Remove, FALSE, KEY_DC, KEY_SDC, CTL_DEL, ALT_DEL},
#endif
{XK_Escape, FALSE, 0x1B, 0x1B, 0x1B, ALT_ESC},
{XK_KP_Enter, TRUE, PADENTER, PADENTER, CTL_PADENTER,ALT_PADENTER},
{XK_KP_Add, TRUE, PADPLUS, '+', CTL_PADPLUS, ALT_PADPLUS},
{XK_KP_Subtract,TRUE, PADMINUS, '-', CTL_PADMINUS,ALT_PADMINUS},
{XK_KP_Multiply,TRUE, PADSTAR, '*', CTL_PADSTAR, ALT_PADSTAR},
/* Sun Type 4 keyboard */
{XK_R6, TRUE, PADSTAR, '*', CTL_PADSTAR, ALT_PADSTAR},
{XK_KP_Divide, TRUE, PADSLASH, '/', CTL_PADSLASH,ALT_PADSLASH},
/* Sun Type 4 keyboard */
{XK_R5, TRUE, PADSLASH, '/', CTL_PADSLASH,ALT_PADSLASH},
{XK_KP_Decimal,TRUE, PADSTOP, '.', CTL_PADSTOP, ALT_PADSTOP},
{XK_KP_0, TRUE, PAD0, '0', CTL_PAD0, ALT_PAD0},
{XK_KP_1, TRUE, KEY_C1, '1', CTL_PAD1, ALT_PAD1},
{XK_KP_2, TRUE, KEY_C2, '2', CTL_PAD2, ALT_PAD2},
{XK_KP_3, TRUE, KEY_C3, '3', CTL_PAD3, ALT_PAD3},
{XK_KP_4, TRUE, KEY_B1, '4', CTL_PAD4, ALT_PAD4},
{XK_KP_5, TRUE, KEY_B2, '5', CTL_PAD5, ALT_PAD5},
/* Sun Type 4 keyboard */
{XK_R11, TRUE, KEY_B2, '5', CTL_PAD5, ALT_PAD5},
{XK_KP_6, TRUE, KEY_B3, '6', CTL_PAD6, ALT_PAD6},
{XK_KP_7, TRUE, KEY_A1, '7', CTL_PAD7, ALT_PAD7},
{XK_KP_8, TRUE, KEY_A2, '8', CTL_PAD8, ALT_PAD8},
{XK_KP_9, TRUE, KEY_A3, '9', CTL_PAD9, ALT_PAD9},
/* the following added to support Sun Type 5 keyboards */
{XK_F21, FALSE, KEY_SUSPEND, KEY_SSUSPEND, KEY_SUSPEND, KEY_SUSPEND},
{XK_F22, FALSE, KEY_PRINT, KEY_SPRINT, KEY_PRINT, KEY_PRINT},
{XK_F24, TRUE, PADMINUS, '-', CTL_PADMINUS,ALT_PADMINUS},
/* Sun Type 4 keyboard */
{XK_F25, TRUE, PADSLASH, '/', CTL_PADSLASH,ALT_PADSLASH},
/* Sun Type 4 keyboard */
{XK_F26, TRUE, PADSTAR, '*', CTL_PADSTAR, ALT_PADSTAR},
{XK_F27, TRUE, KEY_A1, '7', CTL_PAD7, ALT_PAD7},
{XK_F29, TRUE, KEY_A3, '9', CTL_PAD9, ALT_PAD9},
{XK_F31, TRUE, KEY_B2, '5', CTL_PAD5, ALT_PAD5},
{XK_F35, TRUE, KEY_C3, '3', CTL_PAD3, ALT_PAD3},
#ifdef HAVE_XK_KP_DELETE
{XK_KP_Delete, TRUE, PADSTOP, '.', CTL_PADSTOP, ALT_PADSTOP},
#endif
#ifdef HAVE_XK_KP_INSERT
{XK_KP_Insert, TRUE, PAD0, '0', CTL_PAD0, ALT_PAD0},
#endif
#ifdef HAVE_XK_KP_END
{XK_KP_End, TRUE, KEY_C1, '1', CTL_PAD1, ALT_PAD1},
#endif
#ifdef HAVE_XK_KP_DOWN
{XK_KP_Down, TRUE, KEY_C2, '2', CTL_PAD2, ALT_PAD2},
#endif
#ifdef HAVE_XK_KP_NEXT
{XK_KP_Next, TRUE, KEY_C3, '3', CTL_PAD3, ALT_PAD3},
#endif
#ifdef HAVE_XK_KP_LEFT
{XK_KP_Left, TRUE, KEY_B1, '4', CTL_PAD4, ALT_PAD4},
#endif
#ifdef HAVE_XK_KP_BEGIN
{XK_KP_Begin, TRUE, KEY_B2, '5', CTL_PAD5, ALT_PAD5},
#endif
#ifdef HAVE_XK_KP_RIGHT
{XK_KP_Right, TRUE, KEY_B3, '6', CTL_PAD6, ALT_PAD6},
#endif
#ifdef HAVE_XK_KP_HOME
{XK_KP_Home, TRUE, KEY_A1, '7', CTL_PAD7, ALT_PAD7},
#endif
#ifdef HAVE_XK_KP_UP
{XK_KP_Up, TRUE, KEY_A2, '8', CTL_PAD8, ALT_PAD8},
#endif
#ifdef HAVE_XK_KP_PRIOR
{XK_KP_Prior, TRUE, KEY_A3, '9', CTL_PAD9, ALT_PAD9},
#endif
{0, 0, 0, 0, 0, 0}
};
#ifndef PDC_XIM
# include "compose.h"
#endif
#define BITMAPDEPTH 1
unsigned long pdc_key_modifiers = 0L;
static GC normal_gc, block_cursor_gc, rect_cursor_gc, italic_gc, border_gc;
static int font_height, font_width, font_ascent, font_descent,
window_width, window_height;
static int resize_window_width = 0, resize_window_height = 0;
static char *bitmap_file = NULL;
#ifdef HAVE_XPM_H
static char *pixmap_file = NULL;
#endif
static KeySym keysym = 0;
static int state_mask[8] =
{
ShiftMask,
LockMask,
ControlMask,
Mod1Mask,
Mod2Mask,
Mod3Mask,
Mod4Mask,
Mod5Mask
};
static Atom wm_atom[2];
static String class_name = "XCurses";
static XtAppContext app_context;
static Widget topLevel, drawing, scrollBox, scrollVert, scrollHoriz;
static int received_map_notify = 0;
static bool mouse_selection = FALSE;
static chtype *tmpsel = NULL;
static unsigned long tmpsel_length = 0;
static int selection_start_x = 0, selection_start_y = 0,
selection_end_x = 0, selection_end_y = 0;
static Pixmap icon_bitmap;
#ifdef HAVE_XPM_H
static Pixmap icon_pixmap;
static Pixmap icon_pixmap_mask;
#endif
static bool visible_cursor = FALSE;
static bool window_entered = TRUE;
static char *program_name;
/* Macros just for app_resources */
#ifdef PDC_WIDE
# define DEFFONT "-misc-fixed-medium-r-normal--20-200-75-75-c-100-iso10646-1"
#else
# define DEFFONT "7x13"
#endif
#define APPDATAOFF(n) XtOffsetOf(XCursesAppData, n)
#define RINT(name1, name2, value) { \
#name1, #name2, XtRInt, \
sizeof(int), APPDATAOFF(name1), XtRImmediate, \
(XtPointer)value \
}
#define RPIXEL(name1, name2, value) { \
#name1, #name2, XtRPixel, \
sizeof(Pixel), APPDATAOFF(name1), XtRString, \
(XtPointer)#value \
}
#define RCOLOR(name, value) RPIXEL(color##name, Color##name, value)
#define RSTRINGP(name1, name2, param) { \
#name1, #name2, XtRString, \
MAX_PATH, APPDATAOFF(name1), XtRString, (XtPointer)param \
}
#define RSTRING(name1, name2) RSTRINGP(name1, name2, "")
#define RFONT(name1, name2, value) { \
#name1, #name2, XtRFontStruct, \
sizeof(XFontStruct), APPDATAOFF(name1), XtRString, \
(XtPointer)value \
}
#define RCURSOR(name1, name2, value) { \
#name1, #name2, XtRCursor, \
sizeof(Cursor), APPDATAOFF(name1), XtRString, \
(XtPointer)#value \
}
static XtResource app_resources[] =
{
RINT(lines, Lines, 24),
RINT(cols, Cols, 80),
RPIXEL(cursorColor, CursorColor, Red),
RCOLOR(Black, Black),
RCOLOR(Red, red3),
RCOLOR(Green, green3),
RCOLOR(Yellow, yellow3),
RCOLOR(Blue, blue3),
RCOLOR(Magenta, magenta3),
RCOLOR(Cyan, cyan3),
RCOLOR(White, Grey),
RCOLOR(BoldBlack, grey40),
RCOLOR(BoldRed, red1),
RCOLOR(BoldGreen, green1),
RCOLOR(BoldYellow, yellow1),
RCOLOR(BoldBlue, blue1),
RCOLOR(BoldMagenta, magenta1),
RCOLOR(BoldCyan, cyan1),
RCOLOR(BoldWhite, White),
RFONT(normalFont, NormalFont, DEFFONT),
RFONT(italicFont, ItalicFont, DEFFONT),
RSTRING(bitmap, Bitmap),
#ifdef HAVE_XPM_H
RSTRING(pixmap, Pixmap),
#endif
RSTRINGP(composeKey, ComposeKey, "Multi_key"),
RCURSOR(pointer, Pointer, xterm),
RPIXEL(pointerForeColor, PointerForeColor, Black),
RPIXEL(pointerBackColor, PointerBackColor, White),
RINT(shmmin, Shmmin, 0),
RINT(borderWidth, BorderWidth, 0),
RPIXEL(borderColor, BorderColor, Black),
RINT(doubleClickPeriod, DoubleClickPeriod, (PDC_CLICK_PERIOD * 2)),
RINT(clickPeriod, ClickPeriod, PDC_CLICK_PERIOD),
RINT(scrollbarWidth, ScrollbarWidth, 15),
RINT(cursorBlinkRate, CursorBlinkRate, 0),
RSTRING(textCursor, TextCursor)
};
#undef RCURSOR
#undef RFONT
#undef RSTRING
#undef RCOLOR
#undef RPIXEL
#undef RINT
#undef APPDATAOFF
#undef DEFFONT
/* Macros for options */
#define COPT(name) {"-" #name, "*" #name, XrmoptionSepArg, NULL}
#define CCOLOR(name) COPT(color##name)
static XrmOptionDescRec options[] =
{
COPT(lines), COPT(cols), COPT(normalFont), COPT(italicFont),
COPT(bitmap),
#ifdef HAVE_XPM_H
COPT(pixmap),
#endif
COPT(pointer), COPT(shmmin), COPT(composeKey), COPT(clickPeriod),
COPT(doubleClickPeriod), COPT(scrollbarWidth),
COPT(pointerForeColor), COPT(pointerBackColor),
COPT(cursorBlinkRate), COPT(cursorColor), COPT(textCursor),
CCOLOR(Black), CCOLOR(Red), CCOLOR(Green), CCOLOR(Yellow),
CCOLOR(Blue), CCOLOR(Magenta), CCOLOR(Cyan), CCOLOR(White),
CCOLOR(BoldBlack), CCOLOR(BoldRed), CCOLOR(BoldGreen),
CCOLOR(BoldYellow), CCOLOR(BoldBlue), CCOLOR(BoldMagenta),
CCOLOR(BoldCyan), CCOLOR(BoldWhite)
};
#undef CCOLOR
#undef COPT
static XtActionsRec action_table[] =
{
{"XCursesButton", (XtActionProc)XCursesButton},
{"XCursesKeyPress", (XtActionProc)XCursesKeyPress},
{"XCursesPasteSelection", (XtActionProc)XCursesPasteSelection},
{"string", (XtActionProc)XCursesHandleString}
};
static bool after_first_curses_request = FALSE;
static Pixel colors[MAX_COLORS + 2];
static bool vertical_cursor = FALSE;
#ifdef PDC_XIM
static XIM Xim = NULL;
static XIC Xic = NULL;
#endif
static const char *default_translations =
{
"<Key>: XCursesKeyPress() \n" \
"<KeyUp>: XCursesKeyPress() \n" \
"<BtnDown>: XCursesButton() \n" \
"<BtnUp>: XCursesButton() \n" \
"<BtnMotion>: XCursesButton()"
};
static int _to_utf8(char *outcode, chtype code)
{
#ifdef PDC_WIDE
if (code & A_ALTCHARSET && !(code & 0xff80))
code = acs_map[code & 0x7f];
#endif
code &= A_CHARTEXT;
if (code < 0x80)
{
outcode[0] = code;
return 1;
}
else
if (code < 0x800)
{
outcode[0] = ((code & 0x07c0) >> 6) | 0xc0;
outcode[1] = (code & 0x003f) | 0x80;
return 2;
}
else
{
outcode[0] = ((code & 0xf000) >> 12) | 0xe0;
outcode[1] = ((code & 0x0fc0) >> 6) | 0x80;
outcode[2] = (code & 0x003f) | 0x80;
return 3;
}
}
static int _from_utf8(wchar_t *pwc, const char *s, size_t n)
{
wchar_t key;
int i = -1;
const unsigned char *string;
if (!s || (n < 1))
return -1;
if (!*s)
return 0;
string = (const unsigned char *)s;
key = string[0];
/* Simplistic UTF-8 decoder -- only does the BMP, minimal validation */
if (key & 0x80)
{
if ((key & 0xe0) == 0xc0)
{
if (1 < n)
{
key = ((key & 0x1f) << 6) | (string[1] & 0x3f);
i = 2;
}
}
else if ((key & 0xe0) == 0xe0)
{
if (2 < n)
{
key = ((key & 0x0f) << 12) |
((string[1] & 0x3f) << 6) | (string[2] & 0x3f);
i = 3;
}
}
}
else
i = 1;
if (i)
*pwc = key;
return i;
}
#ifndef X_HAVE_UTF8_STRING
static Atom XA_UTF8_STRING(Display *dpy)
{
static AtomPtr p = NULL;
if (!p)
p = XmuMakeAtom("UTF8_STRING");
return XmuInternAtom(dpy, p);
}
#endif
signal_handler XCursesSetSignal(int signo, signal_handler action)
{
#if defined(SA_INTERRUPT) || defined(SA_RESTART)
struct sigaction sigact, osigact;
sigact.sa_handler = action;
sigact.sa_flags =
# ifdef SA_INTERRUPT
# ifdef SA_RESTART
SA_INTERRUPT | SA_RESTART;
# else
SA_INTERRUPT;
# endif
# else /* must be SA_RESTART */
SA_RESTART;
# endif
sigemptyset(&sigact.sa_mask);
if (sigaction(signo, &sigact, &osigact))
return SIG_ERR;
return osigact.sa_handler;
#else /* not SA_INTERRUPT or SA_RESTART, use plain signal */
return signal(signo, action);
#endif
}
RETSIGTYPE XCursesSigwinchHandler(int signo)
{
PDC_LOG(("%s:XCursesSigwinchHandler() - called: SIGNO: %d\n",
XCLOGMSG, signo));
/* Patch by: Georg Fuchs, georg.fuchs@rz.uni-regensburg.de
02-Feb-1999 */
SP->resized += 1;
/* Always trap SIGWINCH if the C library supports SIGWINCH */
#ifdef SIGWINCH
XCursesSetSignal(SIGWINCH, XCursesSigwinchHandler);
#endif
}
/* Convert character positions x and y to pixel positions, stored in
xpos and ypos */
static void _make_xy(int x, int y, int *xpos, int *ypos)
{
*xpos = (x * font_width) + xc_app_data.borderWidth;
*ypos = xc_app_data.normalFont->ascent + (y * font_height) +
xc_app_data.borderWidth;
}
/* Output a block of characters with common attributes */
static int _new_packet(chtype attr, bool rev, int len, int col, int row,
#ifdef PDC_WIDE
XChar2b *text)
#else
char *text)
#endif
{
GC gc;
int xpos, ypos;
short fore, back;
PDC_pair_content(PAIR_NUMBER(attr), &fore, &back);
#ifdef PDC_WIDE
text[len].byte1 = text[len].byte2 = 0;
#else
text[len] = '\0';
#endif
/* Specify the color table offsets */
fore |= (attr & A_BOLD) ? 8 : 0;
back |= (attr & A_BLINK) ? 8 : 0;
/* Reverse flag = highlighted selection XOR A_REVERSE set */
rev ^= !!(attr & A_REVERSE);
/* Determine which GC to use - normal or italic */
gc = (attr & A_ITALIC) ? italic_gc : normal_gc;
/* Draw it */
XSetForeground(XCURSESDISPLAY, gc, colors[rev ? back : fore]);
XSetBackground(XCURSESDISPLAY, gc, colors[rev ? fore : back]);
_make_xy(col, row, &xpos, &ypos);
#ifdef PDC_WIDE
XDrawImageString16(
#else
XDrawImageString(
#endif
XCURSESDISPLAY, XCURSESWIN, gc, xpos, ypos, text, len);
/* Underline, etc. */
if (attr & (A_LEFTLINE|A_RIGHTLINE|A_UNDERLINE))
{
int k;
if (SP->line_color != -1)
XSetForeground(XCURSESDISPLAY, gc, colors[SP->line_color]);
if (attr & A_UNDERLINE) /* UNDER */
XDrawLine(XCURSESDISPLAY, XCURSESWIN, gc,
xpos, ypos + 1, xpos + font_width * len, ypos + 1);
if (attr & A_LEFTLINE) /* LEFT */
for (k = 0; k < len; k++)
{
int x = xpos + font_width * k - 1;
XDrawLine(XCURSESDISPLAY, XCURSESWIN, gc,
x, ypos - font_ascent, x, ypos + font_descent);
}
if (attr & A_RIGHTLINE) /* RIGHT */
for (k = 0; k < len; k++)
{
int x = xpos + font_width * (k + 1) - 1;
XDrawLine(XCURSESDISPLAY, XCURSESWIN, gc,
x, ypos - font_ascent, x, ypos + font_descent);
}
}
PDC_LOG(("%s:_new_packet() - row: %d col: %d "
"num_cols: %d fore: %d back: %d text:<%s>\n",
XCLOGMSG, row, col, len, fore, back, text));
return OK;
}
/* The core display routine -- update one line of text */
static int _display_text(const chtype *ch, int row, int col,
int num_cols, bool highlight)
{
#ifdef PDC_WIDE
XChar2b text[513];
#else
char text[513];
#endif
chtype old_attr, attr;
int i, j;
PDC_LOG(("%s:_display_text() - called: row: %d col: %d "
"num_cols: %d\n", XCLOGMSG, row, col, num_cols));
if (!num_cols)
return OK;
old_attr = *ch & A_ATTRIBUTES;
for (i = 0, j = 0; j < num_cols; j++)
{
chtype curr = ch[j];
attr = curr & A_ATTRIBUTES;
#ifdef CHTYPE_LONG
if (attr & A_ALTCHARSET && !(curr & 0xff80))
{
attr ^= A_ALTCHARSET;
curr = acs_map[curr & 0x7f];
}
#endif
#ifndef PDC_WIDE
/* Special handling for ACS_BLOCK */
if (!(curr & A_CHARTEXT))
{
curr |= ' ';
attr ^= A_REVERSE;
}
#endif
if (attr != old_attr)
{
if (_new_packet(old_attr, highlight, i, col, row, text) == ERR)
return ERR;
old_attr = attr;
col += i;
i = 0;
}
#ifdef PDC_WIDE
text[i].byte1 = (curr & 0xff00) >> 8;
text[i++].byte2 = curr & 0x00ff;
#else
text[i++] = curr & 0xff;
#endif
}
return _new_packet(old_attr, highlight, i, col, row, text);
}
static void _get_gc(GC *gc, XFontStruct *font_info, int fore, int back)
{
XGCValues values;
/* Create default Graphics Context */
*gc = XCreateGC(XCURSESDISPLAY, XCURSESWIN, 0L, &values);
/* specify font */
XSetFont(XCURSESDISPLAY, *gc, font_info->fid);
XSetForeground(XCURSESDISPLAY, *gc, colors[fore]);
XSetBackground(XCURSESDISPLAY, *gc, colors[back]);
}
static void _initialize_colors(void)
{
colors[COLOR_BLACK] = xc_app_data.colorBlack;
colors[COLOR_RED] = xc_app_data.colorRed;
colors[COLOR_GREEN] = xc_app_data.colorGreen;
colors[COLOR_YELLOW] = xc_app_data.colorYellow;
colors[COLOR_BLUE] = xc_app_data.colorBlue;
colors[COLOR_MAGENTA] = xc_app_data.colorMagenta;
colors[COLOR_CYAN] = xc_app_data.colorCyan;
colors[COLOR_WHITE] = xc_app_data.colorWhite;
colors[COLOR_BLACK + 8] = xc_app_data.colorBoldBlack;
colors[COLOR_RED + 8] = xc_app_data.colorBoldRed;
colors[COLOR_GREEN + 8] = xc_app_data.colorBoldGreen;
colors[COLOR_YELLOW + 8] = xc_app_data.colorBoldYellow;
colors[COLOR_BLUE + 8] = xc_app_data.colorBoldBlue;
colors[COLOR_MAGENTA + 8] = xc_app_data.colorBoldMagenta;
colors[COLOR_CYAN + 8] = xc_app_data.colorBoldCyan;
colors[COLOR_WHITE + 8] = xc_app_data.colorBoldWhite;
colors[COLOR_CURSOR] = xc_app_data.cursorColor;
colors[COLOR_BORDER] = xc_app_data.borderColor;
}
static void _refresh_scrollbar(void)
{
XC_LOG(("_refresh_scrollbar() - called\n"));
if (SP->sb_on)
{
PDC_SCROLLBAR_TYPE total_y = SP->sb_total_y;
PDC_SCROLLBAR_TYPE total_x = SP->sb_total_x;
if (total_y)
XawScrollbarSetThumb(scrollVert,
(PDC_SCROLLBAR_TYPE)(SP->sb_cur_y) / total_y,
(PDC_SCROLLBAR_TYPE)(SP->sb_viewport_y) / total_y);
if (total_x)
XawScrollbarSetThumb(scrollHoriz,
(PDC_SCROLLBAR_TYPE)(SP->sb_cur_x) / total_x,
(PDC_SCROLLBAR_TYPE)(SP->sb_viewport_x) / total_x);
}
}
static void _set_cursor_color(chtype *ch, short *fore, short *back)
{
int attr;
short f, b;
attr = PAIR_NUMBER(*ch);
if (attr)
{
PDC_pair_content(attr, &f, &b);
*fore = 7 - (f % 8);
*back = 7 - (b % 8);
}
else
{
if (*ch & A_REVERSE)
{
*back = COLOR_BLACK;
*fore = COLOR_WHITE;
}
else
{
*back = COLOR_WHITE;
*fore = COLOR_BLACK;
}
}
}
static void _get_icon(void)
{
XIconSize *icon_size;
int size_count = 0;
Status rc;
unsigned char *bitmap_bits = NULL;
unsigned icon_bitmap_width = 0, icon_bitmap_height = 0,
file_bitmap_width = 0, file_bitmap_height = 0;
XC_LOG(("_get_icon() - called\n"));
icon_size = XAllocIconSize();
rc = XGetIconSizes(XtDisplay(topLevel),
RootWindowOfScreen(XtScreen(topLevel)),
&icon_size, &size_count);
/* if the WM can advise on icon sizes... */
if (rc && size_count)
{
int i, max_height = 0, max_width = 0;
PDC_LOG(("%s:size_count: %d rc: %d\n", XCLOGMSG, size_count, rc));
for (i = 0; i < size_count; i++)
{
if (icon_size[i].max_width > max_width)
max_width = icon_size[i].max_width;
if (icon_size[i].max_height > max_height)
max_height = icon_size[i].max_height;
PDC_LOG(("%s:min: %d %d\n", XCLOGMSG,
icon_size[i].min_width, icon_size[i].min_height));
PDC_LOG(("%s:max: %d %d\n", XCLOGMSG,
icon_size[i].max_width, icon_size[i].max_height));
PDC_LOG(("%s:inc: %d %d\n", XCLOGMSG,
icon_size[i].width_inc, icon_size[i].height_inc));
}
if (max_width >= big_icon_width && max_height >= big_icon_height)
{
icon_bitmap_width = big_icon_width;
icon_bitmap_height = big_icon_height;
bitmap_bits = (unsigned char *)big_icon_bits;
}
else
{
icon_bitmap_width = little_icon_width;
icon_bitmap_height = little_icon_height;
bitmap_bits = (unsigned char *)little_icon_bits;
}
}
else /* use small icon */
{
icon_bitmap_width = little_icon_width;
icon_bitmap_height = little_icon_height;
bitmap_bits = (unsigned char *)little_icon_bits;
}
XFree(icon_size);
#ifdef HAVE_XPM_H
if (xc_app_data.pixmap && xc_app_data.pixmap[0]) /* supplied pixmap */
{
XpmReadFileToPixmap(XtDisplay(topLevel),
RootWindowOfScreen(XtScreen(topLevel)),
(char *)xc_app_data.pixmap,
&icon_pixmap, &icon_pixmap_mask, NULL);
return;
}
#endif
if (xc_app_data.bitmap && xc_app_data.bitmap[0]) /* supplied bitmap */
{
int x_hot = 0, y_hot = 0;
rc = XReadBitmapFile(XtDisplay(topLevel),
RootWindowOfScreen(XtScreen(topLevel)),
(char *)xc_app_data.bitmap,
&file_bitmap_width, &file_bitmap_height,
&icon_bitmap, &x_hot, &y_hot);
switch(rc)
{
case BitmapOpenFailed:
fprintf(stderr, "bitmap file %s: not found\n",
xc_app_data.bitmap);
break;
case BitmapFileInvalid:
fprintf(stderr, "bitmap file %s: contents invalid\n",
xc_app_data.bitmap);
break;
default:
return;
}
}
icon_bitmap = XCreateBitmapFromData(XtDisplay(topLevel),
RootWindowOfScreen(XtScreen(topLevel)),
(char *)bitmap_bits, icon_bitmap_width, icon_bitmap_height);
}
static void _draw_border(void)
{
/* Draw the border if required */
if (xc_app_data.borderWidth)
XDrawRectangle(XCURSESDISPLAY, XCURSESWIN, border_gc,
xc_app_data.borderWidth / 2,
xc_app_data.borderWidth / 2,
window_width - xc_app_data.borderWidth,
window_height - xc_app_data.borderWidth);
}
/* Redraw the entire screen */
static void _display_screen(void)
{
int row;
XC_LOG(("_display_screen() - called\n"));
for (row = 0; row < XCursesLINES; row++)
{
XC_get_line_lock(row);
_display_text((const chtype *)(Xcurscr + XCURSCR_Y_OFF(row)),
row, 0, COLS, FALSE);
XC_release_line_lock(row);
}
_redraw_cursor();
_draw_border();
}
/* Draw changed portions of the screen */
static void _refresh_screen(void)
{
int row, start_col, num_cols;
XC_LOG(("_refresh_screen() - called\n"));
for (row = 0; row < XCursesLINES; row++)
{
num_cols = (int)*(Xcurscr + XCURSCR_LENGTH_OFF + row);
if (num_cols)
{
XC_get_line_lock(row);
start_col = (int)*(Xcurscr + XCURSCR_START_OFF + row);
_display_text((const chtype *)(Xcurscr + XCURSCR_Y_OFF(row) +
(start_col * sizeof(chtype))), row, start_col,
num_cols, FALSE);
*(Xcurscr + XCURSCR_LENGTH_OFF + row) = 0;
XC_release_line_lock(row);
}
}
if (mouse_selection)
_selection_off();
}
static void _handle_expose(Widget w, XtPointer client_data, XEvent *event,
Boolean *unused)
{
XC_LOG(("_handle_expose() - called\n"));
/* ignore all Exposes except last */
if (event->xexpose.count)
return;
if (after_first_curses_request && received_map_notify)
_display_screen();
}
static void _handle_nonmaskable(Widget w, XtPointer client_data, XEvent *event,
Boolean *unused)
{
XClientMessageEvent *client_event = (XClientMessageEvent *)event;
PDC_LOG(("%s:_handle_nonmaskable called: xc_otherpid %d event %d\n",
XCLOGMSG, xc_otherpid, event->type));
if (event->type == ClientMessage)
{
XC_LOG(("ClientMessage received\n"));
/* This code used to include handling of WM_SAVE_YOURSELF, but
it resulted in continual failure of THE on my Toshiba laptop.
Removed on 3-3-2001. Now only exits on WM_DELETE_WINDOW. */
if ((Atom)client_event->data.s[0] == wm_atom[0])
_exit_process(0, SIGKILL, "");
}
}
static void XCursesKeyPress(Widget w, XEvent *event, String *params,
Cardinal *nparams)
{
enum { STATE_NORMAL, STATE_COMPOSE, STATE_CHAR };
#ifdef PDC_XIM
Status status;
wchar_t buffer[120];
#else
unsigned char buffer[120];
XComposeStatus compose;
static int compose_state = STATE_NORMAL;
static int compose_index = 0;
int char_idx = 0;
#endif
unsigned long key = 0;
int buflen = 40;
int i, count;
unsigned long modifier = 0;
bool key_code = FALSE;
XC_LOG(("XCursesKeyPress() - called\n"));
/* Handle modifier keys first; ignore other KeyReleases */
if (event->type == KeyRelease)
{
/* The keysym value was set by a previous call to this function
with a KeyPress event (or reset by the mouse event handler) */
if (SP->return_key_modifiers &&
#ifndef PDC_XIM
keysym != compose_key &&
#endif
IsModifierKey(keysym))
{
switch (keysym) {
case XK_Shift_L:
key = KEY_SHIFT_L;
break;
case XK_Shift_R:
key = KEY_SHIFT_R;
break;
case XK_Control_L:
key = KEY_CONTROL_L;
break;
case XK_Control_R:
key = KEY_CONTROL_R;
break;
case XK_Alt_L:
key = KEY_ALT_L;
break;
case XK_Alt_R:
key = KEY_ALT_R;
}
if (key)
_send_key_to_curses(key, NULL, TRUE);
}
return;
}
buffer[0] = '\0';
#ifdef PDC_XIM
count = XwcLookupString(Xic, &(event->xkey), buffer, buflen,
&keysym, &status);
#else
count = XLookupString(&(event->xkey), (char *)buffer, buflen,
&keysym, &compose);
#endif
/* translate keysym into curses key code */
PDC_LOG(("%s:Key mask: %x\n", XCLOGMSG, event->xkey.state));
#ifdef PDCDEBUG
for (i = 0; i < 4; i++)
PDC_debug("%s:Keysym %x %d\n", XCLOGMSG,
XKeycodeToKeysym(XCURSESDISPLAY, event->xkey.keycode, i), i);
#endif
#ifndef PDC_XIM
/* Check if the key just pressed is the user-specified compose
key; if it is, set the compose state and exit. */
if (keysym == compose_key)
{
chtype *ch;
int xpos, ypos, save_visibility = SP->visibility;
short fore = 0, back = 0;
/* Change the shape of the cursor to an outline rectangle to
indicate we are in "compose" status */
SP->visibility = 0;
_redraw_cursor();
SP->visibility = save_visibility;
_make_xy(SP->curscol, SP->cursrow, &xpos, &ypos);
ch = (chtype *)(Xcurscr + XCURSCR_Y_OFF(SP->cursrow) +
(SP->curscol * sizeof(chtype)));
_set_cursor_color(ch, &fore, &back);
XSetForeground(XCURSESDISPLAY, rect_cursor_gc, colors[back]);
XDrawRectangle(XCURSESDISPLAY, XCURSESWIN, rect_cursor_gc,
xpos + 1, ypos - font_height +
xc_app_data.normalFont->descent + 1,
font_width - 2, font_height - 2);
compose_state = STATE_COMPOSE;
return;
}
switch (compose_state)
{
case STATE_COMPOSE:
if (IsModifierKey(keysym))
return;
if (event->xkey.state & compose_mask)
{
compose_state = STATE_NORMAL;
_redraw_cursor();
break;
}
if (buffer[0] && count == 1)
key = buffer[0];
compose_index = -1;
for (i = 0; i < (int)strlen(compose_chars); i++)
if (compose_chars[i] == key)
{
compose_index = i;
break;
}
if (compose_index == -1)
{
compose_state = STATE_NORMAL;
compose_index = 0;
_redraw_cursor();
break;
}
compose_state = STATE_CHAR;
return;
case STATE_CHAR:
if (IsModifierKey(keysym))
return;
if (event->xkey.state & compose_mask)
{
compose_state = STATE_NORMAL;
_redraw_cursor();
break;
}
if (buffer[0] && count == 1)
key = buffer[0];
char_idx = -1;
for (i = 0; i < MAX_COMPOSE_CHARS; i++)
if (compose_lookups[compose_index][i] == key)
{
char_idx = i;
break;
}
if (char_idx == -1)
{
compose_state = STATE_NORMAL;
compose_index = 0;
_redraw_cursor();
break;
}
_send_key_to_curses(compose_keys[compose_index][char_idx],
NULL, FALSE);
compose_state = STATE_NORMAL;
compose_index = 0;
_redraw_cursor();
return;
}
#endif /* PDC_XIM */
/* To get here we are procesing "normal" keys */
PDC_LOG(("%s:Keysym %x %d\n", XCLOGMSG,
XKeycodeToKeysym(XCURSESDISPLAY, event->xkey.keycode, key), key));
if (SP->save_key_modifiers)
{
/* 0x10: usually, numlock modifier */
if (event->xkey.state & Mod2Mask)
modifier |= PDC_KEY_MODIFIER_NUMLOCK;
/* 0x01: shift modifier */
if (event->xkey.state & ShiftMask)
modifier |= PDC_KEY_MODIFIER_SHIFT;
/* 0x04: control modifier */
if (event->xkey.state & ControlMask)
modifier |= PDC_KEY_MODIFIER_CONTROL;
/* 0x08: usually, alt modifier */
if (event->xkey.state & Mod1Mask)
modifier |= PDC_KEY_MODIFIER_ALT;
}
for (i = 0; key_table[i].keycode; i++)
{
if (key_table[i].keycode == keysym)
{
PDC_LOG(("%s:State %x\n", XCLOGMSG, event->xkey.state));
/* ControlMask: 0x04: control modifier
Mod1Mask: 0x08: usually, alt modifier
Mod2Mask: 0x10: usually, numlock modifier
ShiftMask: 0x01: shift modifier */
if ((event->xkey.state & ShiftMask) ||
(key_table[i].numkeypad &&
(event->xkey.state & Mod2Mask)))
{
key = key_table[i].shifted;
}
else if (event->xkey.state & ControlMask)
{
key = key_table[i].control;
}
else if (event->xkey.state & Mod1Mask)
{
key = key_table[i].alt;
}
/* To get here, we ignore all other modifiers */
else
key = key_table[i].normal;
key_code = (key > 0x100);
break;
}
}
if (!key && buffer[0] && count == 1)
key = buffer[0];
PDC_LOG(("%s:Key: %s pressed - %x Mod: %x\n", XCLOGMSG,
XKeysymToString(keysym), key, event->xkey.state));
/* Handle ALT letters and numbers */
if (event->xkey.state == Mod1Mask)
{
if (key >= 'A' && key <= 'Z')
{
key += ALT_A - 'A';
key_code = TRUE;
}
if (key >= 'a' && key <= 'z')
{
key += ALT_A - 'a';
key_code = TRUE;
}
if (key >= '0' && key <= '9')
{
key += ALT_0 - '0';
key_code = TRUE;
}
}
/* After all that, send the key back to the application if is
NOT zero. */
if (key)
{
key |= (modifier << 24);
_send_key_to_curses(key, NULL, key_code);
}
}
static void XCursesHandleString(Widget w, XEvent *event, String *params,
Cardinal *nparams)
{
unsigned char *ptr;
if (*nparams != 1)
return;
ptr = (unsigned char *)*params;
if (ptr[0] == '0' && ptr[1] == 'x' && ptr[2] != '\0')
{
unsigned char c;
unsigned long total = 0;
for (ptr += 2; (c = tolower(*ptr)); ptr++)
{
total <<= 4;
if (c >= '0' && c <= '9')
total += c - '0';
else
if (c >= 'a' && c <= 'f')
total += c - ('a' - 10);
else
break;
}
if (c == '\0')
_send_key_to_curses(total, NULL, FALSE);
}
else
for (; *ptr; ptr++)
_send_key_to_curses((unsigned long)*ptr, NULL, FALSE);
}
static void _paste_string(Widget w, XtPointer data, Atom *selection, Atom *type,
XtPointer value, unsigned long *length, int *format)
{
unsigned long i, key;
unsigned char *string = value;
XC_LOG(("_paste_string() - called\n"));
if (!*type || !*length || !string)
return;
for (i = 0; string[i] && (i < (*length)); i++)
{
key = string[i];
if (key == 10) /* new line - convert to ^M */
key = 13;
_send_key_to_curses(key, NULL, FALSE);
}
XtFree(value);
}
static void _paste_utf8(Widget w, XtPointer event, Atom *selection, Atom *type,
XtPointer value, unsigned long *length, int *format)
{
wchar_t key;
size_t i = 0, len;
char *string = value;
XC_LOG(("_paste_utf8() - called\n"));
if (!*type || !*length)
{
XtGetSelectionValue(w, XA_PRIMARY, XA_STRING, _paste_string,
event, ((XButtonEvent *)event)->time);
return;
}
len = *length;
if (!string)
return;
while (string[i] && (i < len))
{
int retval = _from_utf8(&key, string + i, len - i);
if (retval < 1)
return;
if (key == 10) /* new line - convert to ^M */
key = 13;
_send_key_to_curses(key, NULL, FALSE);
i += retval;
}
XtFree(value);
}
static void XCursesPasteSelection(Widget w, XButtonEvent *button_event)
{
XC_LOG(("XCursesPasteSelection() - called\n"));
XtGetSelectionValue(w, XA_PRIMARY, XA_UTF8_STRING(XtDisplay(w)),
_paste_utf8, (XtPointer)button_event,
button_event->time);
}
static Boolean _convert_proc(Widget w, Atom *selection, Atom *target,
Atom *type_return, XtPointer *value_return,
unsigned long *length_return, int *format_return)
{
XC_LOG(("_convert_proc() - called\n"));
if (*target == XA_TARGETS(XtDisplay(topLevel)))
{
XSelectionRequestEvent *req = XtGetSelectionRequest(w,
*selection, (XtRequestId)NULL);
Atom *targetP;
XPointer std_targets;
unsigned long std_length;
XmuConvertStandardSelection(topLevel, req->time, selection,
target, type_return, &std_targets,
&std_length, format_return);
*length_return = std_length + 2;
*value_return = XtMalloc(sizeof(Atom) * (*length_return));
targetP = *(Atom**)value_return;
*targetP++ = XA_STRING;
*targetP++ = XA_UTF8_STRING(XtDisplay(topLevel));
memmove((void *)targetP, (const void *)std_targets,
sizeof(Atom) * std_length);
XtFree((char *)std_targets);
*type_return = XA_ATOM;
*format_return = sizeof(Atom) * 8;
return True;
}
else if (*target == XA_UTF8_STRING(XtDisplay(topLevel)) ||
*target == XA_STRING)
{
bool utf8 = !(*target == XA_STRING);
char *data = XtMalloc(tmpsel_length * 3 + 1);
chtype *tmp = tmpsel;
int ret_length = 0;
if (utf8)
{
while (*tmp)
ret_length += _to_utf8(data + ret_length, *tmp++);
}
else
while (*tmp)
data[ret_length++] = *tmp++ & 0xff;
data[ret_length++] = '\0';
*value_return = data;
*length_return = ret_length;
*format_return = 8;
*type_return = *target;
return True;
}
else
return XmuConvertStandardSelection(topLevel, CurrentTime,
selection, target, type_return, (XPointer*)value_return,
length_return, format_return);
}
static void _lose_ownership(Widget w, Atom *type)
{
XC_LOG(("_lose_ownership() - called\n"));
if (tmpsel)
free(tmpsel);
tmpsel = NULL;
tmpsel_length = 0;
_selection_off();
}
static void _show_selection(int start_x, int start_y, int end_x, int end_y,
bool highlight)
{
int i, num_cols, start_col, row;
PDC_LOG(("%s:_show_selection() - called StartX: %d StartY: %d "
"EndX: %d EndY: %d Highlight: %d\n", XCLOGMSG,
start_x, start_y, end_x, end_y, highlight));
for (i = 0; i < end_y - start_y + 1; i++)
{
if (start_y == end_y) /* only one line */
{
start_col = start_x;
num_cols = end_x - start_x + 1;
row = start_y;
}
else if (!i) /* first line */
{
start_col = start_x;
num_cols = COLS - start_x;
row = start_y;
}
else if (start_y + i == end_y) /* last line */
{
start_col = 0;
num_cols = end_x + 1;
row = end_y;
}
else /* full line */
{
start_col = 0;
num_cols = COLS;
row = start_y + i;
}
XC_get_line_lock(row);
_display_text((const chtype *)(Xcurscr + XCURSCR_Y_OFF(row) +
(start_col * sizeof(chtype))), row, start_col,
num_cols, highlight);
XC_release_line_lock(row);
}
}
static void _selection_off(void)
{
XC_LOG(("_selection_off() - called\n"));
_display_screen();
selection_start_x = selection_start_y = selection_end_x =
selection_end_y = 0;
mouse_selection = FALSE;
}
static void _selection_on(int x, int y)
{
XC_LOG(("_selection_on() - called\n"));
selection_start_x = selection_end_x = x;
selection_start_y = selection_end_y = y;
}
static void _selection_extend(int x, int y)
{
int temp, current_start, current_end, current_start_x,
current_end_x, current_start_y, current_end_y, new_start,
new_end, new_start_x, new_end_x, new_start_y, new_end_y;
XC_LOG(("_selection_extend() - called\n"));
mouse_selection = TRUE;
/* convert x/y coordinates into start/stop */
current_start = (selection_start_y * COLS) + selection_start_x;
current_end = (selection_end_y * COLS) + selection_end_x;
if (current_start > current_end)
{
current_start_x = selection_end_x;
current_start_y = selection_end_y;
current_end_x = selection_start_x;
current_end_y = selection_start_y;
temp = current_start;
current_start = current_end;
current_end = temp;
}
else
{
current_end_x = selection_end_x;
current_end_y = selection_end_y;
current_start_x = selection_start_x;
current_start_y = selection_start_y;
}
/* Now we have the current selection as a linear expression.
Convert the new position to a linear expression. */
selection_end_x = x;
selection_end_y = y;
/* convert x/y coordinates into start/stop */
new_start = (selection_start_y * COLS) + selection_start_x;
new_end = (selection_end_y * COLS) + selection_end_x;
if (new_start > new_end)
{
new_start_x = selection_end_x;
new_start_y = selection_end_y;
new_end_x = selection_start_x;
new_end_y = selection_start_y;
temp = new_start;
new_start = new_end;
new_end = temp;
}
else
{
new_end_x = selection_end_x;
new_end_y = selection_end_y;
new_start_x = selection_start_x;
new_start_y = selection_start_y;
}
if (new_end > current_end)
_show_selection(current_end_x, current_end_y, new_end_x,
new_end_y, TRUE);
else if (new_end < current_end)
_show_selection(new_end_x, new_end_y, current_end_x,
current_end_y, FALSE);
else if (new_start < current_start)
_show_selection(new_start_x, new_start_y, current_start_x,
current_start_y, TRUE);
else if (new_start > current_start)
_show_selection(current_start_x, current_start_y,
new_start_x, new_start_y, FALSE);
else
_show_selection(current_start_x, current_start_y,
new_start_x, new_start_y, TRUE);
}
static void _selection_set(void)
{
int i, j, start, end, start_x, end_x, start_y, end_y, num_cols,
start_col, row, num_chars, ch, last_nonblank, length, newlen;
chtype *ptr = NULL;
XC_LOG(("_selection_set() - called\n"));
/* convert x/y coordinates into start/stop */
start = (selection_start_y * COLS) + selection_start_x;
end = (selection_end_y * COLS) + selection_end_x;
if (start == end)
{
if (tmpsel)
free(tmpsel);
tmpsel = NULL;
tmpsel_length = 0;
return;
}
if (start > end)
{
start_x = selection_end_x;
start_y = selection_end_y;
end_x = selection_start_x;
end_y = selection_start_y;
length = start - end + 1;
}
else
{
end_x = selection_end_x;
end_y = selection_end_y;
start_x = selection_start_x;
start_y = selection_start_y;
length = end - start + 1;
}
newlen = length + end_y - start_y + 2;
if (length > (int)tmpsel_length)
{
if (!tmpsel_length)
tmpsel = malloc(newlen * sizeof(chtype));
else
tmpsel = realloc(tmpsel, newlen * sizeof(chtype));
}
if (!tmpsel)
{
tmpsel_length = 0;
return;
}
tmpsel_length = length;
num_chars = 0;
for (i = 0; i < end_y - start_y + 1; i++)
{
if (start_y == end_y) /* only one line */
{
start_col = start_x;
num_cols = end_x - start_x + 1;
row = start_y;
}
else if (!i) /* first line */
{
start_col = start_x;
num_cols = COLS - start_x;
row = start_y;
}
else if (start_y + i == end_y) /* last line */
{
start_col = 0;
num_cols = end_x + 1;
row = end_y;
}
else /* full line */
{
start_col = 0;
num_cols = COLS;
row = start_y + i;
}
XC_get_line_lock(row);
ptr = (chtype *)(Xcurscr + XCURSCR_Y_OFF(row) +
start_col * sizeof(chtype));
if (i < end_y - start_y)
{
last_nonblank = 0;
for (j = 0; j < num_cols; j++)
{
ch = (int)(ptr[j] & A_CHARTEXT);
if (ch != (int)' ')
last_nonblank = j;
}
}
else
last_nonblank = num_cols - 1;
for (j = 0; j <= last_nonblank; j++)
tmpsel[num_chars++] = ptr[j];
XC_release_line_lock(row);
if (i < end_y - start_y)
tmpsel[num_chars++] = '\n';
}
tmpsel[num_chars] = '\0';
tmpsel_length = num_chars;
}
static void _display_cursor(int old_row, int old_x, int new_row, int new_x)
{
int xpos, ypos, i;
chtype *ch;
short fore = 0, back = 0;
PDC_LOG(("%s:_display_cursor() - draw char at row: %d col %d\n",
XCLOGMSG, old_row, old_x));
/* if the cursor position is outside the boundary of the screen,
ignore the request */
if (old_row >= XCursesLINES || old_x >= COLS ||
new_row >= XCursesLINES || new_x >= COLS)
return;
/* display the character at the current cursor position */
PDC_LOG(("%s:_display_cursor() - draw char at row: %d col %d\n",
XCLOGMSG, old_row, old_x));
_display_text((const chtype *)(Xcurscr + (XCURSCR_Y_OFF(old_row) +
(old_x * sizeof(chtype)))), old_row, old_x, 1, FALSE);
/* display the cursor at the new cursor position */
if (!SP->visibility)
return; /* cursor not displayed, no more to do */
_make_xy(new_x, new_row, &xpos, &ypos);
ch = (chtype *)(Xcurscr + XCURSCR_Y_OFF(new_row) + new_x * sizeof(chtype));
_set_cursor_color(ch, &fore, &back);
if (vertical_cursor)
{
XSetForeground(XCURSESDISPLAY, rect_cursor_gc, colors[back]);
for (i = 1; i <= SP->visibility; i++)
XDrawLine(XCURSESDISPLAY, XCURSESWIN, rect_cursor_gc,
xpos + i, ypos - xc_app_data.normalFont->ascent,
xpos + i, ypos - xc_app_data.normalFont->ascent +
font_height - 1);
}
else
{
if (SP->visibility == 1)
{
/* cursor visibility normal */
XSetForeground(XCURSESDISPLAY, rect_cursor_gc, colors[back]);
for (i = 0; i < xc_app_data.normalFont->descent + 2; i++)
XDrawLine(XCURSESDISPLAY, XCURSESWIN, rect_cursor_gc,
xpos, ypos - 2 + i, xpos + font_width, ypos - 2 + i);
}
else
{
/* cursor visibility high */
#ifdef PDC_WIDE
XChar2b buf[2];
buf[0].byte1 = (*ch & 0xff00) >> 8;
buf[0].byte2 = *ch & 0x00ff;
buf[1].byte1 = buf[1].byte2 = 0;
#else
char buf[2];
buf[0] = *ch & 0xff;
buf[1] = '\0';
#endif
XSetForeground(XCURSESDISPLAY, block_cursor_gc, colors[fore]);
XSetBackground(XCURSESDISPLAY, block_cursor_gc, colors[back]);
#ifdef PDC_WIDE
XDrawImageString16(
#else
XDrawImageString(
#endif
XCURSESDISPLAY, XCURSESWIN, block_cursor_gc,
xpos, ypos, buf, 1);
}
}
PDC_LOG(("%s:_display_cursor() - draw cursor at row %d col %d\n",
XCLOGMSG, new_row, new_x));
}
static void _redraw_cursor(void)
{
_display_cursor(SP->cursrow, SP->curscol, SP->cursrow, SP->curscol);
}
static void _handle_enter_leave(Widget w, XtPointer client_data,
XEvent *event, Boolean *unused)
{
XC_LOG(("_handle_enter_leave called\n"));
switch(event->type)
{
case EnterNotify:
XC_LOG(("EnterNotify received\n"));
window_entered = TRUE;
break;
case LeaveNotify:
XC_LOG(("LeaveNotify received\n"));
window_entered = FALSE;
/* Display the cursor so it stays on while the window is
not current */
_redraw_cursor();
break;
default:
PDC_LOG(("%s:_handle_enter_leave - unknown event %d\n",
XCLOGMSG, event->type));
}
}
static void _send_key_to_curses(unsigned long key, MOUSE_STATUS *ms,
bool key_code)
{
PDC_LOG(("%s:_send_key_to_curses() - called: sending %d\n",
XCLOGMSG, key));
SP->key_code = key_code;
if (XC_write_socket(xc_key_sock, &key, sizeof(unsigned long)) < 0)
_exit_process(1, SIGKILL, "exiting from _send_key_to_curses");
if (ms)
{
MOUSE_LOG(("%s:writing mouse stuff\n", XCLOGMSG));
if (XC_write_socket(xc_key_sock, ms, sizeof(MOUSE_STATUS)) < 0)
_exit_process(1, SIGKILL, "exiting from _send_key_to_curses");
}
}
static void _blink_cursor(XtPointer unused, XtIntervalId *id)
{
XC_LOG(("_blink_cursor() - called:\n"));
if (window_entered)
{
if (visible_cursor)
{
/* Cursor currently ON, turn it off */
int save_visibility = SP->visibility;
SP->visibility = 0;
_redraw_cursor();
SP->visibility = save_visibility;
visible_cursor = FALSE;
}
else
{
/* Cursor currently OFF, turn it on */
_redraw_cursor();
visible_cursor = TRUE;
}
}
XtAppAddTimeOut(app_context, xc_app_data.cursorBlinkRate,
_blink_cursor, NULL);
}
static void XCursesButton(Widget w, XEvent *event, String *params,
Cardinal *nparams)
{
int button_no;
static int last_button_no = 0;
static Time last_button_press_time = 0;
MOUSE_STATUS save_mouse_status;
bool send_key = TRUE;
static bool remove_release;
static bool handle_real_release;
XC_LOG(("XCursesButton() - called\n"));
keysym = 0; /* suppress any modifier key return */
save_mouse_status = Mouse_status;
button_no = event->xbutton.button;
/* It appears that under X11R6 (at least on Linux), that an
event_type of ButtonMotion does not include the mouse button in
the event. The following code is designed to cater for this
situation. */
if (!button_no)
button_no = last_button_no;
last_button_no = button_no;
Mouse_status.changes = 0;
switch(event->type)
{
case ButtonPress:
/* Handle button 4 and 5, which are normally mapped to the wheel
mouse scroll up and down */
if (button_no == 4 || button_no == 5)
{
/* Send the KEY_MOUSE to curses program */
memset(&Mouse_status, 0, sizeof(Mouse_status));
Mouse_status.changes = (button_no == 5) ?
PDC_MOUSE_WHEEL_DOWN : PDC_MOUSE_WHEEL_UP;
MOUSE_X_POS = MOUSE_Y_POS = -1;
_send_key_to_curses(KEY_MOUSE, &Mouse_status, TRUE);
remove_release = TRUE;
return;
}
if (button_no == 2 &&
(!SP->_trap_mbe || (event->xbutton.state & ShiftMask)))
{
XCursesPasteSelection(drawing, (XButtonEvent *)event);
remove_release = TRUE;
return;
}
remove_release = False;
handle_real_release = False;
MOUSE_LOG(("\nButtonPress\n"));
if ((event->xbutton.time - last_button_press_time) <
xc_app_data.doubleClickPeriod)
{
MOUSE_X_POS = save_mouse_status.x;
MOUSE_Y_POS = save_mouse_status.y;
BUTTON_STATUS(button_no) = BUTTON_DOUBLE_CLICKED;
_selection_off();
remove_release = True;
}
else
{
napms(SP->mouse_wait);
event->type = ButtonRelease;
XSendEvent(event->xbutton.display, event->xbutton.window,
True, 0, event);
last_button_press_time = event->xbutton.time;
return;
}
last_button_press_time = event->xbutton.time;
break;
case MotionNotify:
MOUSE_LOG(("\nMotionNotify: y: %d x: %d Width: %d "
"Height: %d\n", event->xbutton.y, event->xbutton.x,
font_width, font_height));
MOUSE_X_POS = (event->xbutton.x - xc_app_data.borderWidth) /
font_width;
MOUSE_Y_POS = (event->xbutton.y - xc_app_data.borderWidth) /
font_height;
if (button_no == 1 &&
(!SP->_trap_mbe || (event->xbutton.state & ShiftMask)))
{
_selection_extend(MOUSE_X_POS, MOUSE_Y_POS);
send_key = FALSE;
}
else
_selection_off();
/* Throw away mouse movements if they are in the same character
position as the last mouse event, or if we are currently in
the middle of a double click event. */
if ((MOUSE_X_POS == save_mouse_status.x &&
MOUSE_Y_POS == save_mouse_status.y) ||
save_mouse_status.button[button_no - 1] == BUTTON_DOUBLE_CLICKED)
{
send_key = FALSE;
break;
}
Mouse_status.changes |= PDC_MOUSE_MOVED;
break;
case ButtonRelease:
if (remove_release)
{
MOUSE_LOG(("Release at: %ld - removed\n", event->xbutton.time));
return;
}
else
{
MOUSE_X_POS = (event->xbutton.x - xc_app_data.borderWidth) /
font_width;
MOUSE_Y_POS = (event->xbutton.y - xc_app_data.borderWidth) /
font_height;
if (!handle_real_release)
{
if ((event->xbutton.time - last_button_press_time) <
SP->mouse_wait &&
(event->xbutton.time != last_button_press_time))
{
/* The "real" release was shorter than usleep() time;
therefore generate a click event */
MOUSE_LOG(("Release at: %ld - click\n",
event->xbutton.time));
BUTTON_STATUS(button_no) = BUTTON_CLICKED;
if (button_no == 1 && mouse_selection &&
(!SP->_trap_mbe || (event->xbutton.state & ShiftMask)))
{
send_key = FALSE;
if (XtOwnSelection(topLevel, XA_PRIMARY,
event->xbutton.time, _convert_proc,
_lose_ownership, NULL) == False)
_selection_off();
}
else
_selection_off();
/* Ensure the "pseudo" release event is ignored */
remove_release = True;
handle_real_release = False;
break;
}
else
{
/* Button release longer than usleep() time;
therefore generate a press and wait for the real
release to occur later. */
MOUSE_LOG(("Generated Release at: %ld - "
"press & release\n", event->xbutton.time));
BUTTON_STATUS(button_no) = BUTTON_PRESSED;
if (button_no == 1 &&
(!SP->_trap_mbe || (event->xbutton.state & ShiftMask)))
{
_selection_off();
_selection_on(MOUSE_X_POS, MOUSE_Y_POS);
}
handle_real_release = True;
break;
}
}
else
{
MOUSE_LOG(("Release at: %ld - released\n",
event->xbutton.time));
}
}
MOUSE_LOG(("\nButtonRelease\n"));
BUTTON_STATUS(button_no) = BUTTON_RELEASED;
if (button_no == 1 && mouse_selection &&
(!SP->_trap_mbe || (event->xbutton.state & ShiftMask)))
{
send_key = FALSE;
if (XtOwnSelection(topLevel, XA_PRIMARY,
event->xbutton.time, _convert_proc,
_lose_ownership, NULL) == False)
_selection_off();
_selection_set();
}
else
_selection_off();
break;
}
/* Set up the mouse status fields in preparation for sending */
Mouse_status.changes |= 1 << (button_no - 1);
if (Mouse_status.changes & PDC_MOUSE_MOVED &&
BUTTON_STATUS(button_no) == BUTTON_PRESSED)
BUTTON_STATUS(button_no) = BUTTON_MOVED;
if (event->xbutton.state & ShiftMask)
BUTTON_STATUS(button_no) |= BUTTON_SHIFT;
if (event->xbutton.state & ControlMask)
BUTTON_STATUS(button_no) |= BUTTON_CONTROL;
if (event->xbutton.state & Mod1Mask)
BUTTON_STATUS(button_no) |= BUTTON_ALT;
/* If we are ignoring the event, or the mouse position is outside
the bounds of the screen (because of the border), return here */
MOUSE_LOG(("Button: %d x: %d y: %d Button status: %x "
"Mouse status: %x\n", button_no, MOUSE_X_POS, MOUSE_Y_POS,
BUTTON_STATUS(button_no), Mouse_status.changes));
MOUSE_LOG(("Send: %d Button1: %x Button2: %x Button3: %x %d %d\n",
send_key, BUTTON_STATUS(1), BUTTON_STATUS(2),
BUTTON_STATUS(3), XCursesLINES, XCursesCOLS));
if (!send_key || MOUSE_X_POS < 0 || MOUSE_X_POS >= XCursesCOLS ||
MOUSE_Y_POS < 0 || MOUSE_Y_POS >= XCursesLINES)
return;
/* Send the KEY_MOUSE to curses program */
_send_key_to_curses(KEY_MOUSE, &Mouse_status, TRUE);
}
static void _scroll_up_down(Widget w, XtPointer client_data,
XtPointer call_data)
{
int pixels = (long) call_data;
int total_y = SP->sb_total_y * font_height;
int viewport_y = SP->sb_viewport_y * font_height;
int cur_y = SP->sb_cur_y * font_height;
/* When pixels is negative, right button pressed, move data down,
thumb moves up. Otherwise, left button pressed, pixels positive,
move data up, thumb down. */
cur_y += pixels;
/* limit panning to size of overall */
if (cur_y < 0)
cur_y = 0;
else
if (cur_y > (total_y - viewport_y))
cur_y = total_y - viewport_y;
SP->sb_cur_y = cur_y / font_height;
XawScrollbarSetThumb(w, (double)((double)cur_y / (double)total_y),
(double)((double)viewport_y / (double)total_y));
/* Send a key: if pixels negative, send KEY_SCROLL_DOWN */
_send_key_to_curses(KEY_SF, NULL, TRUE);
}
static void _scroll_left_right(Widget w, XtPointer client_data,
XtPointer call_data)
{
int pixels = (long) call_data;
int total_x = SP->sb_total_x * font_width;
int viewport_x = SP->sb_viewport_x * font_width;
int cur_x = SP->sb_cur_x * font_width;
cur_x += pixels;
/* limit panning to size of overall */
if (cur_x < 0)
cur_x = 0;
else
if (cur_x > (total_x - viewport_x))
cur_x = total_x - viewport_x;
SP->sb_cur_x = cur_x / font_width;
XawScrollbarSetThumb(w, (double)((double)cur_x / (double)total_x),
(double)((double)viewport_x / (double)total_x));
_send_key_to_curses(KEY_SR, NULL, TRUE);
}
static void _thumb_up_down(Widget w, XtPointer client_data,
XtPointer call_data)
{
double percent = *(double *) call_data;
double total_y = (double)SP->sb_total_y;
double viewport_y = (double)SP->sb_viewport_y;
int cur_y = SP->sb_cur_y;
/* If the size of the viewport is > overall area simply return,
as no scrolling is permitted. */
if (SP->sb_viewport_y >= SP->sb_total_y)
return;
if ((SP->sb_cur_y = (int)((double)total_y * percent)) >=
(total_y - viewport_y))
SP->sb_cur_y = total_y - viewport_y;
XawScrollbarSetThumb(w, (double)(cur_y / total_y),
(double)(viewport_y / total_y));
_send_key_to_curses(KEY_SF, NULL, TRUE);
}
static void _thumb_left_right(Widget w, XtPointer client_data,
XtPointer call_data)
{
double percent = *(double *) call_data;
double total_x = (double)SP->sb_total_x;
double viewport_x = (double)SP->sb_viewport_x;
int cur_x = SP->sb_cur_x;
if (SP->sb_viewport_x >= SP->sb_total_x)
return;
if ((SP->sb_cur_x = (int)((float)total_x * percent)) >=
(total_x - viewport_x))
SP->sb_cur_x = total_x - viewport_x;
XawScrollbarSetThumb(w, (double)(cur_x / total_x),
(double)(viewport_x / total_x));
_send_key_to_curses(KEY_SR, NULL, TRUE);
}
static void _exit_process(int rc, int sig, char *msg)
{
if (rc || sig)
fprintf(stderr, "%s:_exit_process() - called: rc:%d sig:%d <%s>\n",
XCLOGMSG, rc, sig, msg);
shmdt((char *)SP);
shmdt((char *)Xcurscr);
shmctl(shmidSP, IPC_RMID, 0);
shmctl(shmid_Xcurscr, IPC_RMID, 0);
if (bitmap_file)
{
XFreePixmap(XCURSESDISPLAY, icon_bitmap);
free(bitmap_file);
}
#ifdef HAVE_XPM_H
if (pixmap_file)
{
XFreePixmap(XCURSESDISPLAY, icon_pixmap);
XFreePixmap(XCURSESDISPLAY, icon_pixmap_mask);
free(pixmap_file);
}
#endif
XFreeGC(XCURSESDISPLAY, normal_gc);
XFreeGC(XCURSESDISPLAY, italic_gc);
XFreeGC(XCURSESDISPLAY, block_cursor_gc);
XFreeGC(XCURSESDISPLAY, rect_cursor_gc);
XFreeGC(XCURSESDISPLAY, border_gc);
#ifdef PDC_XIM
XDestroyIC(Xic);
#endif
shutdown(xc_display_sock, 2);
close(xc_display_sock);
shutdown(xc_exit_sock, 2);
close(xc_exit_sock);
shutdown(xc_key_sock, 2);
close(xc_key_sock);
if (sig)
kill(xc_otherpid, sig); /* to kill parent process */
_exit(rc);
}
static void _resize(void)
{
short save_atrtab[PDC_COLOR_PAIRS * 2];
after_first_curses_request = FALSE;
SP->lines = XCursesLINES = ((resize_window_height -
(2 * xc_app_data.borderWidth)) / font_height);
LINES = XCursesLINES - SP->linesrippedoff - SP->slklines;
SP->cols = COLS = XCursesCOLS = ((resize_window_width -
(2 * xc_app_data.borderWidth)) / font_width);
window_width = resize_window_width;
window_height = resize_window_height;
visible_cursor = TRUE;
_draw_border();
/* Detach and drop the current shared memory segment and create and
attach to a new segment */
memcpy(save_atrtab, xc_atrtab, sizeof(save_atrtab));
SP->XcurscrSize = XCURSCR_SIZE;
shmdt((char *)Xcurscr);
shmctl(shmid_Xcurscr, IPC_RMID, 0);
if ((shmid_Xcurscr = shmget(shmkey_Xcurscr,
SP->XcurscrSize + XCURSESSHMMIN, 0700 | IPC_CREAT)) < 0)
{
perror("Cannot allocate shared memory for curscr");
_exit_process(4, SIGKILL, "exiting from _process_curses_requests");
}
Xcurscr = (unsigned char*)shmat(shmid_Xcurscr, 0, 0);
memset(Xcurscr, 0, SP->XcurscrSize);
xc_atrtab = (short *)(Xcurscr + XCURSCR_ATRTAB_OFF);
memcpy(xc_atrtab, save_atrtab, sizeof(save_atrtab));
}
/* For PDC_set_title() */
static void _set_title(void)
{
char title[1024]; /* big enough for window title */
int pos;
if ((XC_read_socket(xc_display_sock, &pos, sizeof(int)) < 0) ||
(XC_read_socket(xc_display_sock, title, pos) < 0))
{
_exit_process(5, SIGKILL, "exiting from _set_title");
}
XtVaSetValues(topLevel, XtNtitle, title, NULL);
}
/* For color_content() */
static void _get_color(void)
{
XColor *tmp = (XColor *)(Xcurscr + XCURSCR_XCOLOR_OFF);
int index = tmp->pixel;
Colormap cmap = DefaultColormap(XCURSESDISPLAY,
DefaultScreen(XCURSESDISPLAY));
if (index < 0 || index >= MAX_COLORS)
_exit_process(4, SIGKILL, "exiting from _get_color");
tmp->pixel = colors[index];
XQueryColor(XCURSESDISPLAY, cmap, tmp);
}
/* For init_color() */
static void _set_color(void)
{
XColor *tmp = (XColor *)(Xcurscr + XCURSCR_XCOLOR_OFF);
int index = tmp->pixel;
Colormap cmap = DefaultColormap(XCURSESDISPLAY,
DefaultScreen(XCURSESDISPLAY));
if (index < 0 || index >= MAX_COLORS)
_exit_process(4, SIGKILL, "exiting from _set_color");
if (XAllocColor(XCURSESDISPLAY, cmap, tmp))
{
XFreeColors(XCURSESDISPLAY, cmap, colors + index, 1, 0);
colors[index] = tmp->pixel;
_display_screen();
}
}
/* For PDC_getclipboard() */
static void _get_selection(Widget w, XtPointer data, Atom *selection,
Atom *type, XtPointer value,
unsigned long *length, int *format)
{
unsigned char *src = value;
int pos, len = *length;
XC_LOG(("_get_selection() - called\n"));
if (!value && !len)
{
if (XC_write_display_socket_int(PDC_CLIP_EMPTY) < 0)
_exit_process(4, SIGKILL, "exiting from _get_selection");
}
else
{
/* Here all is OK, send PDC_CLIP_SUCCESS, then length, then
contents */
if (XC_write_display_socket_int(PDC_CLIP_SUCCESS) < 0)
_exit_process(4, SIGKILL, "exiting from _get_selection");
if (XC_write_display_socket_int(len) < 0)
_exit_process(4, SIGKILL, "exiting from _get_selection");
for (pos = 0; pos < len; pos++)
{
#ifdef PDC_WIDE
wchar_t c;
#else
unsigned char c;
#endif
c = *src++;
if (XC_write_socket(xc_display_sock, &c, sizeof(c)) < 0)
_exit_process(4, SIGKILL, "exiting from _get_selection");
}
}
}
#ifdef PDC_WIDE
static void _get_selection_utf8(Widget w, XtPointer data, Atom *selection,
Atom *type, XtPointer value,
unsigned long *length, int *format)
{
int len = *length;
XC_LOG(("_get_selection_utf8() - called\n"));
if (!*type || !*length)
{
XtGetSelectionValue(w, XA_PRIMARY, XA_STRING, _get_selection,
(XtPointer)NULL, 0);
return;
}
if (!value && !len)
{
if (XC_write_display_socket_int(PDC_CLIP_EMPTY) >= 0)
return;
}
else
{
wchar_t *wcontents = malloc((len + 1) * sizeof(wchar_t));
char *src = value;
int i = 0;
while (*src && i < (*length))
{
int retval = _from_utf8(wcontents + i, src, len);
src += retval;
len -= retval;
i++;
}
wcontents[i] = 0;
len = i;
/* Here all is OK, send PDC_CLIP_SUCCESS, then length, then
contents */
if (XC_write_display_socket_int(PDC_CLIP_SUCCESS) >= 0)
if (XC_write_display_socket_int(len) >= 0)
if (XC_write_socket(xc_display_sock,
wcontents, len * sizeof(wchar_t)) >= 0)
{
free(wcontents);
return;
}
}
_exit_process(4, SIGKILL, "exiting from _get_selection_utf8");
}
#endif
/* For PDC_setclipboard() */
static void _set_selection(void)
{
long length, pos;
int status;
if (XC_read_socket(xc_display_sock, &length, sizeof(long)) < 0)
_exit_process(5, SIGKILL, "exiting from _set_selection");
if (length > (long)tmpsel_length)
{
if (!tmpsel_length)
tmpsel = malloc((length + 1) * sizeof(chtype));
else
tmpsel = realloc(tmpsel, (length + 1) * sizeof(chtype));
}
if (!tmpsel)
if (XC_write_display_socket_int(PDC_CLIP_MEMORY_ERROR) < 0)
_exit_process(4, SIGKILL, "exiting from _set_selection");
for (pos = 0; pos < length; pos++)
{
#ifdef PDC_WIDE
wchar_t c;
#else
unsigned char c;
#endif
if (XC_read_socket(xc_display_sock, &c, sizeof(c)) < 0)
_exit_process(5, SIGKILL, "exiting from _set_selection");
tmpsel[pos] = c;
}
tmpsel_length = length;
tmpsel[length] = 0;
if (XtOwnSelection(topLevel, XA_PRIMARY, CurrentTime,
_convert_proc, _lose_ownership, NULL) == False)
{
status = PDC_CLIP_ACCESS_ERROR;
free(tmpsel);
tmpsel = NULL;
tmpsel_length = 0;
}
else
status = PDC_CLIP_SUCCESS;
_selection_off();
if (XC_write_display_socket_int(status) < 0)
_exit_process(4, SIGKILL, "exiting from _set_selection");
}
/* The curses process is waiting; tell it to continue */
static void _resume_curses(void)
{
if (XC_write_display_socket_int(CURSES_CONTINUE) < 0)
_exit_process(4, SIGKILL, "exiting from _process_curses_requests");
}
/* The curses process sent us a message */
static void _process_curses_requests(XtPointer client_data, int *fid,
XtInputId *id)
{
struct timeval socket_timeout = {0};
int s;
int old_row, new_row;
int old_x, new_x;
int pos, num_cols;
char buf[12]; /* big enough for 2 integers */
XC_LOG(("_process_curses_requests() - called\n"));
if (!received_map_notify)
return;
FD_ZERO(&xc_readfds);
FD_SET(xc_display_sock, &xc_readfds);
if ((s = select(FD_SETSIZE, (FD_SET_CAST)&xc_readfds, NULL,
NULL, &socket_timeout)) < 0)
_exit_process(2, SIGKILL, "exiting from _process_curses_requests"
" - select failed");
if (!s) /* no requests pending - should never happen! */
return;
if (FD_ISSET(xc_display_sock, &xc_readfds))
{
/* read first integer to determine total message has been
received */
XC_LOG(("_process_curses_requests() - before XC_read_socket()\n"));
if (XC_read_socket(xc_display_sock, &num_cols, sizeof(int)) < 0)
_exit_process(3, SIGKILL, "exiting from _process_curses_requests"
" - first read");
XC_LOG(("_process_curses_requests() - after XC_read_socket()\n"));
after_first_curses_request = TRUE;
switch(num_cols)
{
case CURSES_EXIT: /* request from curses to stop */
XC_LOG(("CURSES_EXIT received from child\n"));
_exit_process(0, 0, "XCursesProcess requested to exit by child");
break;
case CURSES_BELL:
XC_LOG(("CURSES_BELL received from child\n"));
XBell(XCURSESDISPLAY, 50);
break;
/* request from curses to confirm completion of display */
case CURSES_REFRESH:
XC_LOG(("CURSES_REFRESH received from child\n"));
_refresh_screen();
_resume_curses();
break;
case CURSES_REFRESH_SCROLLBAR:
_refresh_scrollbar();
break;
case CURSES_CURSOR:
XC_LOG(("CURSES_CURSOR received from child\n"));
if (XC_read_socket(xc_display_sock, buf, sizeof(int) * 2) < 0)
_exit_process(5, SIGKILL, "exiting from CURSES_CURSOR "
"_process_curses_requests");
memcpy(&pos, buf, sizeof(int));
old_row = pos & 0xFF;
old_x = pos >> 8;
memcpy(&pos, buf + sizeof(int), sizeof(int));
new_row = pos & 0xFF;
new_x = pos >> 8;
visible_cursor = TRUE;
_display_cursor(old_row, old_x, new_row, new_x);
break;
case CURSES_DISPLAY_CURSOR:
XC_LOG(("CURSES_DISPLAY_CURSOR received from child. Vis now: "));
XC_LOG((visible_cursor ? "1\n" : "0\n"));
/* If the window is not active, ignore this command. The
cursor will stay solid. */
if (window_entered)
{
if (visible_cursor)
{
/* Cursor currently ON, turn it off */
int save_visibility = SP->visibility;
SP->visibility = 0;
_redraw_cursor();
SP->visibility = save_visibility;
visible_cursor = FALSE;
}
else
{
/* Cursor currently OFF, turn it on */
_redraw_cursor();
visible_cursor = TRUE;
}
}
break;
case CURSES_TITLE:
XC_LOG(("CURSES_TITLE received from child\n"));
_set_title();
break;
case CURSES_RESIZE:
XC_LOG(("CURSES_RESIZE received from child\n"));
_resize();
_resume_curses();
break;
case CURSES_GET_SELECTION:
XC_LOG(("CURSES_GET_SELECTION received from child\n"));
_resume_curses();
XtGetSelectionValue(topLevel, XA_PRIMARY,
#ifdef PDC_WIDE
XA_UTF8_STRING(XtDisplay(topLevel)),
_get_selection_utf8,
#else
XA_STRING, _get_selection,
#endif
(XtPointer)NULL, 0);
break;
case CURSES_SET_SELECTION:
XC_LOG(("CURSES_SET_SELECTION received from child\n"));
_set_selection();
break;
case CURSES_CLEAR_SELECTION:
XC_LOG(("CURSES_CLEAR_SELECTION received from child\n"));
_resume_curses();
_selection_off();
break;
case CURSES_GET_COLOR:
XC_LOG(("CURSES_GET_COLOR recieved from child\n"));
_get_color();
_resume_curses();
break;
case CURSES_SET_COLOR:
XC_LOG(("CURSES_SET_COLOR recieved from child\n"));
_set_color();
_resume_curses();
break;
default:
PDC_LOG(("%s:Unknown request %d\n", XCLOGMSG, num_cols));
}
}
}
static void _handle_structure_notify(Widget w, XtPointer client_data,
XEvent *event, Boolean *unused)
{
XC_LOG(("_handle_structure_notify() - called\n"));
switch(event->type)
{
case ConfigureNotify:
XC_LOG(("ConfigureNotify received\n"));
/* Window has been resized, change width and height to send to
place_text and place_graphics in next Expose. Also will need
to kill (SIGWINCH) curses process if screen size changes. */
resize_window_width = event->xconfigure.width;
resize_window_height = event->xconfigure.height;
after_first_curses_request = FALSE;
#ifdef SIGWINCH
SP->resized = 1;
kill(xc_otherpid, SIGWINCH);
#endif
_send_key_to_curses(KEY_RESIZE, NULL, TRUE);
break;
case MapNotify:
XC_LOG(("MapNotify received\n"));
received_map_notify = 1;
_draw_border();
break;
default:
PDC_LOG(("%s:_handle_structure_notify - unknown event %d\n",
XCLOGMSG, event->type));
}
}
static RETSIGTYPE _handle_signals(int signo)
{
int flag = CURSES_EXIT;
PDC_LOG(("%s:_handle_signals() - called: %d\n", XCLOGMSG, signo));
/* Patch by: Georg Fuchs */
XCursesSetSignal(signo, _handle_signals);
#ifdef SIGTSTP
if (signo == SIGTSTP)
{
pause();
return;
}
#endif
#ifdef SIGCONT
if (signo == SIGCONT)
return;
#endif
#ifdef SIGCLD
if (signo == SIGCLD)
return;
#endif
#ifdef SIGTTIN
if (signo == SIGTTIN)
return;
#endif
#ifdef SIGWINCH
if (signo == SIGWINCH)
return;
#endif
/* End of patch by: Georg Fuchs */
XCursesSetSignal(signo, SIG_IGN);
/* Send a CURSES_EXIT to myself */
if (XC_write_socket(xc_exit_sock, &flag, sizeof(int)) < 0)
_exit_process(7, signo, "exiting from _handle_signals");
}
#ifdef PDC_XIM
static void _dummy_handler(Widget w, XtPointer client_data,
XEvent *event, Boolean *unused)
{
}
#endif
int XCursesSetupX(int argc, char *argv[])
{
char *myargv[] = {"PDCurses", NULL};
extern bool sb_started;
int italic_font_valid;
XColor pointerforecolor, pointerbackcolor;
XrmValue rmfrom, rmto;
int i = 0;
int minwidth, minheight;
XC_LOG(("XCursesSetupX called\n"));
if (!argv)
{
argv = myargv;
argc = 1;
}
program_name = argv[0];
/* Keep open the 'write' end of the socket so the XCurses process
can send a CURSES_EXIT to itself from within the signal handler */
xc_exit_sock = xc_display_sockets[0];
xc_display_sock = xc_display_sockets[1];
close(xc_key_sockets[0]);
xc_key_sock = xc_key_sockets[1];
/* Trap all signals when XCurses is the child process, but only if
they haven't already been ignored by the application. */
for (i = 0; i < PDC_MAX_SIGNALS; i++)
if (XCursesSetSignal(i, _handle_signals) == SIG_IGN)
XCursesSetSignal(i, SIG_IGN);
/* Start defining X Toolkit things */
#if XtSpecificationRelease > 4
XtSetLanguageProc(NULL, (XtLanguageProc)NULL, NULL);
#endif
/* Exit if no DISPLAY variable set */
if (!getenv("DISPLAY"))
{
fprintf(stderr, "Error: no DISPLAY variable set\n");
kill(xc_otherpid, SIGKILL);
return ERR;
}
/* Initialise the top level widget */
topLevel = XtVaAppInitialize(&app_context, class_name, options,
XtNumber(options), &argc, argv, NULL, NULL);
XtVaGetApplicationResources(topLevel, &xc_app_data, app_resources,
XtNumber(app_resources), NULL);
/* Check application resource values here */
font_width = xc_app_data.normalFont->max_bounds.rbearing -
xc_app_data.normalFont->min_bounds.lbearing;
font_height = xc_app_data.normalFont->max_bounds.ascent +
xc_app_data.normalFont->max_bounds.descent;
font_ascent = xc_app_data.normalFont->max_bounds.ascent;
font_descent = xc_app_data.normalFont->max_bounds.descent;
/* Check that the italic font and normal fonts are the same size */
/* This appears backwards */
italic_font_valid = font_width !=
xc_app_data.italicFont->max_bounds.rbearing -
xc_app_data.italicFont->min_bounds.lbearing ||
font_height !=
xc_app_data.italicFont->max_bounds.ascent +
xc_app_data.italicFont->max_bounds.descent;
/* Calculate size of display window */
XCursesCOLS = xc_app_data.cols;
XCursesLINES = xc_app_data.lines;
window_width = font_width * XCursesCOLS +
2 * xc_app_data.borderWidth;
window_height = font_height * XCursesLINES +
2 * xc_app_data.borderWidth;
minwidth = font_width * 2 + xc_app_data.borderWidth * 2;
minheight = font_height * 2 + xc_app_data.borderWidth * 2;
/* Set up the icon for the application; the default is an internal
one for PDCurses. Then set various application level resources. */
_get_icon();
#ifdef HAVE_XPM_H
if (xc_app_data.pixmap && xc_app_data.pixmap[0])
XtVaSetValues(topLevel, XtNminWidth, minwidth, XtNminHeight,
minheight, XtNbaseWidth, xc_app_data.borderWidth * 2,
XtNbaseHeight, xc_app_data.borderWidth * 2,
XtNiconPixmap, icon_pixmap,
XtNiconMask, icon_pixmap_mask, NULL);
else
#endif
XtVaSetValues(topLevel, XtNminWidth, minwidth, XtNminHeight,
minheight, XtNbaseWidth, xc_app_data.borderWidth * 2,
XtNbaseHeight, xc_app_data.borderWidth * 2,
XtNiconPixmap, icon_bitmap, NULL);
/* Create a BOX widget in which to draw */
if (xc_app_data.scrollbarWidth && sb_started)
{
scrollBox = XtVaCreateManagedWidget(program_name,
scrollBoxWidgetClass, topLevel, XtNwidth,
window_width + xc_app_data.scrollbarWidth,
XtNheight, window_height + xc_app_data.scrollbarWidth,
XtNwidthInc, font_width, XtNheightInc, font_height, NULL);
drawing = XtVaCreateManagedWidget(program_name,
boxWidgetClass, scrollBox, XtNwidth,
window_width, XtNheight, window_height, XtNwidthInc,
font_width, XtNheightInc, font_height, NULL);
scrollVert = XtVaCreateManagedWidget("scrollVert",
scrollbarWidgetClass, scrollBox, XtNorientation,
XtorientVertical, XtNheight, window_height, XtNwidth,
xc_app_data.scrollbarWidth, NULL);
XtAddCallback(scrollVert, XtNscrollProc, _scroll_up_down, drawing);
XtAddCallback(scrollVert, XtNjumpProc, _thumb_up_down, drawing);
scrollHoriz = XtVaCreateManagedWidget("scrollHoriz",
scrollbarWidgetClass, scrollBox, XtNorientation,
XtorientHorizontal, XtNwidth, window_width, XtNheight,
xc_app_data.scrollbarWidth, NULL);
XtAddCallback(scrollHoriz, XtNscrollProc, _scroll_left_right, drawing);
XtAddCallback(scrollHoriz, XtNjumpProc, _thumb_left_right, drawing);
}
else
{
drawing = XtVaCreateManagedWidget(program_name, boxWidgetClass,
topLevel, XtNwidth, window_width, XtNheight, window_height,
XtNwidthInc, font_width, XtNheightInc, font_height, NULL);
XtVaSetValues(topLevel, XtNwidthInc, font_width, XtNheightInc,
font_height, NULL);
}
/* Process any default translations */
XtAugmentTranslations(drawing,
XtParseTranslationTable(default_translations));
XtAppAddActions(app_context, action_table, XtNumber(action_table));
/* Process the supplied colors */
_initialize_colors();
/* Determine text cursor alignment from resources */
if (!strcmp(xc_app_data.textCursor, "vertical"))
vertical_cursor = TRUE;
/* Now have LINES and COLS. Set these in the shared SP so the curses
program can find them. */
LINES = XCursesLINES;
COLS = XCursesCOLS;
if ((shmidSP = shmget(shmkeySP, sizeof(SCREEN) + XCURSESSHMMIN,
0700 | IPC_CREAT)) < 0)
{
perror("Cannot allocate shared memory for SCREEN");
kill(xc_otherpid, SIGKILL);
return ERR;
}
SP = (SCREEN*)shmat(shmidSP, 0, 0);
memset(SP, 0, sizeof(SCREEN));
SP->XcurscrSize = XCURSCR_SIZE;
SP->lines = XCursesLINES;
SP->cols = XCursesCOLS;
SP->mouse_wait = xc_app_data.clickPeriod;
SP->audible = TRUE;
PDC_LOG(("%s:SHM size for curscr %d\n", XCLOGMSG, SP->XcurscrSize));
if ((shmid_Xcurscr = shmget(shmkey_Xcurscr, SP->XcurscrSize +
XCURSESSHMMIN, 0700 | IPC_CREAT)) < 0)
{
perror("Cannot allocate shared memory for curscr");
kill(xc_otherpid, SIGKILL);
shmdt((char *)SP);
shmctl(shmidSP, IPC_RMID, 0);
return ERR;
}
Xcurscr = (unsigned char *)shmat(shmid_Xcurscr, 0, 0);
memset(Xcurscr, 0, SP->XcurscrSize);
xc_atrtab = (short *)(Xcurscr + XCURSCR_ATRTAB_OFF);
PDC_LOG(("%s:shmid_Xcurscr %d shmkey_Xcurscr %d LINES %d COLS %d\n",
XCLOGMSG, shmid_Xcurscr, shmkey_Xcurscr, LINES, COLS));
/* Add Event handlers to the drawing widget */
XtAddEventHandler(drawing, ExposureMask, False, _handle_expose, NULL);
XtAddEventHandler(drawing, StructureNotifyMask, False,
_handle_structure_notify, NULL);
XtAddEventHandler(drawing, EnterWindowMask | LeaveWindowMask, False,
_handle_enter_leave, NULL);
XtAddEventHandler(topLevel, 0, True, _handle_nonmaskable, NULL);
/* Add input handler from xc_display_sock (requests from curses
program) */
XtAppAddInput(app_context, xc_display_sock, (XtPointer)XtInputReadMask,
_process_curses_requests, NULL);
/* If there is a cursorBlink resource, start the Timeout event */
if (xc_app_data.cursorBlinkRate)
XtAppAddTimeOut(app_context, xc_app_data.cursorBlinkRate,
_blink_cursor, NULL);
/* Leave telling the curses process that it can start to here so
that when the curses process makes a request, the Xcurses
process can service the request. */
XC_write_display_socket_int(CURSES_CHILD);
XtRealizeWidget(topLevel);
/* Handle trapping of the WM_DELETE_WINDOW property */
wm_atom[0] = XInternAtom(XtDisplay(topLevel), "WM_DELETE_WINDOW", False);
XSetWMProtocols(XtDisplay(topLevel), XtWindow(topLevel), wm_atom, 1);
/* Create the Graphics Context for drawing. This MUST be done AFTER
the associated widget has been realized. */
XC_LOG(("before _get_gc\n"));
_get_gc(&normal_gc, xc_app_data.normalFont, COLOR_WHITE, COLOR_BLACK);
_get_gc(&italic_gc, italic_font_valid ? xc_app_data.italicFont :
xc_app_data.normalFont, COLOR_WHITE, COLOR_BLACK);
_get_gc(&block_cursor_gc, xc_app_data.normalFont,
COLOR_BLACK, COLOR_CURSOR);
_get_gc(&rect_cursor_gc, xc_app_data.normalFont,
COLOR_CURSOR, COLOR_BLACK);
_get_gc(&border_gc, xc_app_data.normalFont, COLOR_BORDER, COLOR_BLACK);
XSetLineAttributes(XCURSESDISPLAY, rect_cursor_gc, 2,
LineSolid, CapButt, JoinMiter);
XSetLineAttributes(XCURSESDISPLAY, border_gc, xc_app_data.borderWidth,
LineSolid, CapButt, JoinMiter);
/* Set the cursor for the application */
XDefineCursor(XCURSESDISPLAY, XCURSESWIN, xc_app_data.pointer);
rmfrom.size = sizeof(Pixel);
rmto.size = sizeof(XColor);
rmto.addr = (XPointer)&pointerforecolor;
rmfrom.addr = (XPointer)&(xc_app_data.pointerForeColor);
XtConvertAndStore(drawing, XtRPixel, &rmfrom, XtRColor, &rmto);
rmfrom.size = sizeof(Pixel);
rmto.size = sizeof(XColor);
rmfrom.addr = (XPointer)&(xc_app_data.pointerBackColor);
rmto.addr = (XPointer)&pointerbackcolor;
XtConvertAndStore(drawing, XtRPixel, &rmfrom, XtRColor, &rmto);
XRecolorCursor(XCURSESDISPLAY, xc_app_data.pointer,
&pointerforecolor, &pointerbackcolor);
#ifndef PDC_XIM
/* Convert the supplied compose key to a Keysym */
compose_key = XStringToKeysym(xc_app_data.composeKey);
if (compose_key && IsModifierKey(compose_key))
{
int i, j;
KeyCode *kcp;
XModifierKeymap *map;
KeyCode compose_keycode = XKeysymToKeycode(XCURSESDISPLAY, compose_key);
map = XGetModifierMapping(XCURSESDISPLAY);
kcp = map->modifiermap;
for (i = 0; i < 8; i++)
{
for (j = 0; j < map->max_keypermod; j++, kcp++)
{
if (!*kcp)
continue;
if (compose_keycode == *kcp)
{
compose_mask = state_mask[i];
break;
}
}
if (compose_mask)
break;
}
XFreeModifiermap(map);
}
#else
Xim = XOpenIM(XCURSESDISPLAY, NULL, NULL, NULL);
if (Xim)
{
Xic = XCreateIC(Xim, XNInputStyle,
XIMPreeditNothing | XIMStatusNothing,
XNClientWindow, XCURSESWIN, NULL);
}
if (Xic)
{
long im_event_mask;
XGetICValues(Xic, XNFilterEvents, &im_event_mask, NULL);
if (im_event_mask)
XtAddEventHandler(drawing, im_event_mask, False,
_dummy_handler, NULL);
XSetICFocus(Xic);
}
else
{
perror("ERROR: Cannot create input context");
kill(xc_otherpid, SIGKILL);
shmdt((char *)SP);
shmdt((char *)Xcurscr);
shmctl(shmidSP, IPC_RMID, 0);
shmctl(shmid_Xcurscr, IPC_RMID, 0);
return ERR;
}
#endif
/* Wait for events */
XtAppMainLoop(app_context);
return OK; /* won't get here */
}