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magic/graphics/grTk1.c

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/* grTk1.c
*
* Copyright 2003 Open Circuit Design, Inc., for MultiGiG Ltd.
*
* This file contains primitive functions to manipulate an X window system
* Included here are initialization and closing
* functions, and several utility routines used by the other X
* modules.
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <signal.h>
#include <fcntl.h>
#include <X11/Xlib.h>
#include <X11/Xutil.h>
#include <X11/keysym.h>
#include "tcltk/tclmagic.h"
#include "utils/main.h"
#include "utils/magic.h"
#include "utils/malloc.h"
#include "utils/magsgtty.h"
#include "utils/geometry.h"
#include "windows/windows.h"
#include "graphics/graphics.h"
#include "graphics/graphicsInt.h"
#include "textio/textio.h"
#include "textio/txcommands.h"
#include "utils/signals.h"
#include "tiles/tile.h"
#include "utils/utils.h"
#include "utils/hash.h"
#include "database/database.h"
#include "drc/drc.h"
#include "utils/macros.h"
#include "grTkInt.h"
#include "utils/paths.h"
#include "graphics/grTkCommon.h"
GR_CURRENT grCurrent = {
(Tk_Font)0, 0, 0, 0, 0, 0,
(MagWindow *)NULL
};
GR_DISPLAY grDisplay;
GC grGCFill, grGCText, grGCDraw, grGCCopy, grGCGlyph, grGCStipple;
Visual *grVisual;
int grClass;
Colormap grXcmap;
extern char *DBWStyleType;
unsigned long grPixels[256];
unsigned long grPlanes[256];
XColor colors[256*3]; /* Unique colors used by Magic */
Pixmap *grTkStipples;
HashTable grTkWindowTable;
/* locals */
typedef struct {
char dashlist[8];
int dlen;
} LineStyle;
static LineStyle LineStyleTab[256];
#define grMagicToXs(n) (DisplayHeight(grXdpy,grXscrn)-(n))
#define grXsToMagic(n) (DisplayHeight(grXdpy,grXscrn)-(n))
extern bool GrTkInstalledCMap;
/* machine-dependent constants - see below */
#ifdef __APPLE__
#define X_COLORMAP_BASE 128
#define X_COLORMAP_RESERVED 4
#else
#if defined(CYGWIN)
#define X_COLORMAP_BASE 128
#define X_COLORMAP_RESERVED 0
#else
#define X_COLORMAP_BASE 0
#define X_COLORMAP_RESERVED 2
#endif
#endif
/* This is kind of a long story, and very kludgy, but the following
* things need to be defined as externals because of the way lint
* libraries are made by taking this module and changing all procedures
* names "Xxxx" to "Grxxx". The change is only done at the declaration
* of the procedure, so we need these declarations to handle uses
* of those names, which don't get modified. Check out the Makefile
* for details on this.
*/
extern void GrTkClose(), GrTkFlush();
extern void GrTkDelete(),GrTkConfigure(),GrTkRaise(),GrTkLower();
extern void GrTkLock(),GrTkUnlock(),GrTkIconUpdate();
extern bool GrTkInit();
extern bool GrTkEventPending(), GrTkCreate(), grtkGetCursorPos();
extern int GrTkWindowId();
extern char *GrTkWindowName();
/*---------------------------------------------------------
* grtkSetWMandC:
* This is a local routine that resets the value of the current
* write mask and color, if necessary.
*
* Results: None.
*
* Side Effects: None.
*
* Errors: None.
*---------------------------------------------------------
*/
void
grtkSetWMandC (mask, c)
long mask; /* New value for write mask */
int c; /* New value for current color */
{
static int oldC = -1;
static int oldM = -1;
c = grPixels[c];
if(grDisplay.depth <= 8) {
mask = grPlanes[mask];
if (mask == -65) mask = AllPlanes;
}
else {
mask = AllPlanes;
}
if (oldC == c && oldM == mask) return;
GR_TK_FLUSH_BATCH();
XSetPlaneMask(grXdpy,grGCFill,mask);
XSetPlaneMask(grXdpy,grGCDraw,mask);
XSetPlaneMask(grXdpy,grGCText,mask);
XSetForeground(grXdpy,grGCFill,c);
XSetForeground(grXdpy,grGCDraw,c);
XSetForeground(grXdpy,grGCText,c);
oldC = c;
oldM = mask;
}
/*---------------------------------------------------------
* grtkSetLineStyle:
* This local routine sets the current line style.
*
* Results: None.
*
* Side Effects:
* A new line style is output to the display.
*
*---------------------------------------------------------
*/
void
grtkSetLineStyle (style)
int style; /* New stipple pattern for lines. */
{
static int oldStyle = -1;
LineStyle *linestyle;
int xstyle;
style &= 0xFF;
if (style == oldStyle) return;
oldStyle = style;
GR_TK_FLUSH_BATCH();
switch (style) {
case 0xFF:
case 0x00:
xstyle = LineSolid;
break;
default:
xstyle = LineOnOffDash;
linestyle = &LineStyleTab[style];
if (linestyle->dlen == 0) {
/* translate style to an X11 dashlist */
char *e;
int cnt,offset,cur,new,curnew,i,match;
e = linestyle->dashlist;
cnt = 0;
offset = 1;
cur = 0;
for (i = 7; i >= 0; i--) {
new = (style >> i) & 1;
curnew = (cur << 1) | new;
switch (curnew) {
case 0:
case 3:
cnt++;
break;
case 1:
if (cnt > 0) *e++ = cnt; else offset = 0;
cnt = 1;
break;
case 2:
*e++ = cnt;
cnt = 1;
break;
}
cur = new;
}
*e++ = cnt;
cnt = e - linestyle->dashlist;
if (offset) {
cur = e[0];
for (i = 0; i < cnt-1; i++) e[i] = e[i+1];
e[cnt-1] = cur;
}
match = 1;
do {
if (cnt % 2) break;
for (i = 0; i < cnt/2; i++) {
if (e[i] != e[cnt/2 + i]) match = 0;
}
if (match == 0) break;
cnt = cnt/2;
} while (match);
linestyle->dlen = cnt;
}
XSetDashes(grXdpy, grGCDraw, 0,
linestyle->dashlist, linestyle->dlen);
}
#ifdef OLD_XFREE
/* Bypass bug in XFree-2.x server */
XSetLineAttributes(grXdpy, grGCDraw, 1,
xstyle, CapNotLast, JoinMiter);
#else
XSetLineAttributes(grXdpy, grGCDraw, 0,
xstyle, CapNotLast, JoinMiter);
#endif
}
/*---------------------------------------------------------
* grtkSetSPattern:
* xSetSPattern associates a stipple pattern with a given
* stipple number. This is a local routine called from
* grStyle.c .
*
* Results: None.
*
* Side Effects: None.
*---------------------------------------------------------
*/
void
grtkSetSPattern (sttable, numstipples)
int **sttable; /* The table of patterns */
int numstipples; /* Number of stipples */
{
Tk_Window tkwind;
Window xwid;
Pixmap p;
int i, x, y, pat;
tkwind = Tk_MainWindow(magicinterp);
/* This routine may be executed before Tk tells X11 to create the */
/* main window. So if no X11 window ID is registered, force the */
/* window creation and update. */
if (tkwind == 0 || Tk_WindowId(tkwind) == 0)
Tk_MakeWindowExist(tkwind);
xwid = Tk_WindowId(tkwind);
grTkStipples = (Pixmap *)mallocMagic(numstipples * sizeof(Pixmap));
for (i = 0; i < numstipples; i++)
{
p = Tk_GetPixmap(grXdpy, xwid, 8, 8, 1);
if (grGCStipple == NULL) {
/* grGCStipple = Tk_GetGC(tkwind, 0, 0); */
grGCStipple = XCreateGC(grXdpy, p, 0, 0);
}
for (y = 0; y < 8; y++) {
pat = sttable[i][y];
for (x = 0; x < 8; x++) {
XSetForeground(grXdpy, grGCStipple, pat & 1);
XDrawPoint(grXdpy, p, grGCStipple, x, y);
pat >>= 1;
}
}
grTkStipples[i] = p;
}
}
/*---------------------------------------------------------
* grtkSetStipple:
* This routine sets the Xs current stipple number.
*
* Results: None.
*
* Side Effects:
* The current clipmask in the X is set to stipple,
* if it wasn't that already.
*---------------------------------------------------------
*/
void
grtkSetStipple (stipple)
int stipple; /* The stipple number to be used. */
{
static int oldStip = -1;
if (stipple == oldStip) return;
oldStip = stipple;
GR_TK_FLUSH_BATCH();
if (stipple == 0 || stipple > grNumStipples) {
XSetFillStyle(grXdpy, grGCFill, FillSolid);
} else {
if (grTkStipples[stipple] == 0) MainExit(1);
XSetStipple(grXdpy, grGCFill, grTkStipples[stipple]);
XSetFillStyle(grXdpy, grGCFill, FillStippled);
}
}
/*---------------------------------------------------------
* GrTkInit:
*
* GrTkInit initializes the graphics display. The depth
* of the display is queried from the server, and the
* "best" visual selected. The environment variable
* "MAGIC_COLOR" can override this choice. A colormap
* is selected based on the visual type, but will be
* filled in later.
*
* Results: TRUE if successful.
*---------------------------------------------------------
*/
#define visual_table_len 7
bool
GrTkInit(dispType)
char *dispType;
{
int i,j;
XVisualInfo grvisual_info, *grvisual_get, grtemplate;
VisualID defpsvid;
int defpsindex = -1;
int gritems, gritems_list, grcolorCount;
bool rstatus;
Window xwind;
const char *visual_type[] = {
"StaticGrey",
"GreyScale",
"StaticColor",
"PseudoColor",
"TrueColor",
"DirectColor",
"UNKNOWN"
};
int visual_table[visual_table_len];
char *log_color, *env_str;
int color_base, color_reserved;
int status;
if (Tk_InitStubs(magicinterp, "8.5", 0) == NULL) return FALSE;
grCurrent.window = Tk_MainWindow(magicinterp);
if (grCurrent.window == NULL)
{
TxError("No Top-Level Tk window available. . . is Tk running?\n");
return FALSE;
}
grXdpy = Tk_Display(grCurrent.window);
grDisplay.depth = Tk_Depth(grCurrent.window);
grCurrent.windowid = Tk_WindowId(grCurrent.window);
grXscrn = Tk_ScreenNumber(grCurrent.window);
/* The idea here is to first try allocating the required
* planes out of the default colormap. This is the kindest,
* gentlest thing to do because it doesn't cause all the other
* windows to go technicolor when the cursor is in a magic window.
* If this fails, we go ahead and allocate a colormap specifically
* for magic. The problem now is using this colormap in such
* a way that the other windows' colors get mangled the least.
* Unfortunately, doing this is X-server dependent. This is where
* the constants above come in. X_COLORMAP_BASE indicates
* which part of the colormap (assuming the number of planes
* required is less than the number of planes in the display)
* to fill in the colors magic requires. X_COLORMAP_RESERVED
* tells how many high-end colors the server won't let us touch;
* if we even try to query these colors, we get an X error.
* If, starting at X_COLORMAP_BASE, the number of colors required
* would push us into the top X_COLORMAP_RESERVED colors, then
* we won't be able to set all the colors the user wanted us
* to set. The top colors will remain identical to those
* in the default colormap.
*/
grXcmap = XDefaultColormap(grXdpy,grXscrn);
/* Discover properties of Server. */
grVisual = XDefaultVisual(grXdpy, grXscrn);
defpsvid = XVisualIDFromVisual(grVisual);
grtemplate.screen = grXscrn;
grtemplate.depth = 0;
grvisual_get = XGetVisualInfo(grXdpy, VisualScreenMask, &grtemplate, &gritems);
if (grvisual_get == NULL)
{
TxPrintf("Could not obtain Visual Info from Server %s. Will attempt default.\n",
getenv("DISPLAY"));
grDisplay.depth = 8;
grDisplay.colorCount = 1 << grDisplay.depth;
}
else
{
gritems_list = gritems;
for (gritems = 0; gritems < gritems_list; gritems++)
{
j = grvisual_get[gritems].class;
if ( j < 0 || j > 5)
{
TxPrintf("Unknown visual class index: %d\n", j);
j = 6;
}
if ((grvisual_get[gritems].class == 3) &&
(grvisual_get[gritems].visualid == defpsvid))
defpsindex = gritems;
}
/* Unfortunately, the list returned by Xservers has classes in
* random order. Therefore, a search is needed to find a good
* choice. The only currently supported classes are PseudoColor
* at depth 8 and TrueColor at depth 15, 16, and 24. It is likely
* that TrueColor depths 8 through 32 will work, but these have
* not been tested. In addition, it has been discovered that some
* SUN systems "offer" more than one Pseudocolor at depth 8, but
* with differing colormap sizes. There is nothing about how to
* handle this in the X11 documentation, so the search below chooses
* the "first" class. The class with 256 colors seems preferable and
* works at present. The second Pseudocolor in the list gives a
* BatMatch reject from the server, so it is useless. Basing the
* selection on 256 colors might be effective, but might conflict in
* other cases... As usual X11 is just guesswork. At present the
* preferred order is: PseudoColor at 8, then TrueColor at 24,
* then TrueColor at 16, ... Unless this is overridden by the
* MAGIC_COLOR environment variable, which can be: bw, 8, 16, 24
*/
for (j = 0; j < visual_table_len; j++)
visual_table[j] = -1;
for (j = 0; j < gritems_list; j++)
{
if ((grvisual_get[j].class == 0) && (grvisual_get[j].depth == 8)
&& (visual_table[1] == -1))
visual_table[1] = j; /* StaticGrey */
if ((grvisual_get[j].class == 1) && (grvisual_get[j].depth == 8)
&& (visual_table[2] == -1))
visual_table[2] = j; /* GreyScale */
if ((grvisual_get[j].class == 3) && (grvisual_get[j].depth == 8)
&& (visual_table[3] == -1))
visual_table[3] = j; /* Pseudocolor */
if ((grvisual_get[j].class == 4) && (grvisual_get[j].depth == 15)
&& (visual_table[4] == -1))
visual_table[4] = j; /* TrueColor */
if ((grvisual_get[j].class == 4) && (grvisual_get[j].depth == 16)
&& (visual_table[5] == -1))
visual_table[5] = j; /* TrueColor */
if ((grvisual_get[j].class == 4) && (grvisual_get[j].depth == 24)
&& (visual_table[6] == -1))
visual_table[6] = j; /* TrueColor */
}
if (defpsindex != -1)
visual_table[3] = defpsindex;
log_color = getenv("MAGIC_COLOR");
if ((log_color == NULL) && (dispType != NULL) && (dispType[0] != 'X'))
log_color = dispType;
/* Allow environment variables to override the colormap base and */
/* number of reserved colors, as these depend on the terminal X */
/* server, NOT on the machine running magic. */
/* Note: ought to use strtod() in place of atoi(). */
env_str = getenv("X_COLORMAP_BASE");
if (env_str != NULL)
color_base = (int)atoi(env_str);
else
color_base = X_COLORMAP_BASE;
env_str = getenv("X_COLORMAP_RESERVED");
if (env_str != NULL)
color_reserved = (int)atoi(env_str);
else
color_reserved = X_COLORMAP_RESERVED;
gritems = -1;
if (log_color != NULL)
{
if (strncmp(log_color, "8", 1) == 0) gritems = visual_table[3];
if (strncmp(log_color, "15", 2) == 0) gritems = visual_table[4];
if (strncmp(log_color, "16", 2) == 0) gritems = visual_table[5];
if (strncmp(log_color, "24", 2) == 0) gritems = visual_table[6];
if (gritems == -1)
{
printf("The visual mode %s is not available. Sorry.\n", log_color);
XFree(grvisual_get);
MainExit(1);
}
}
else
{
if (visual_table[3] != -1) gritems = visual_table[3];
else if (visual_table[6] != -1) gritems = visual_table[6];
else if (visual_table[5] != -1) gritems = visual_table[5];
else if (visual_table[4] != -1) gritems = visual_table[4];
}
if (gritems == -1) {
TxPrintf("None of TrueColor 15, 16 or 24, or PseudoColor 8 found. "
"Cannot initialize DISPLAY %s\n", getenv("DISPLAY"));
XFree(grvisual_get);
MainExit(1);
}
else
{
TxPrintf("Using %s, VisualID 0x%x depth %d\n",
visual_type[grvisual_get[gritems].class],
grvisual_get[gritems].visualid,
grvisual_get[gritems].depth);
}
grClass = grvisual_get[gritems].class;
grVisual = grvisual_get[gritems].visual;
grcolorCount = grvisual_get[gritems].colormap_size;
grDisplay.depth = grvisual_get[gritems].depth;
grDisplay.red_mask = grvisual_get[gritems].red_mask;
grDisplay.green_mask = grvisual_get[gritems].green_mask;
grDisplay.blue_mask = grvisual_get[gritems].blue_mask;
grDisplay.colorCount = grcolorCount;
}
XFree(grvisual_get);
grDisplay.planeCount = grDisplay.depth;
grDisplay.realColors = grDisplay.colorCount;
if (grDisplay.planeCount == 8)
{
grDisplay.depth = 7;
grDisplay.planeCount = 7; /* This resets to old 7-plane mode */
grDisplay.colorCount = 1 << (grDisplay.planeCount);
grDisplay.realColors = grDisplay.colorCount;
}
if (grDisplay.depth)
{
status = 0;
if (grClass != 4)
status= XAllocColorCells(grXdpy, grXcmap, TRUE, grDisplay.planes,
grDisplay.planeCount, &grDisplay.basepixel, 1);
if (status == 0)
{
/*
* Ok, we tried to be nice; now lets whack the default colormap
* and put in one of our own.
*/
int actualColors = grcolorCount;
int usableColors = actualColors - color_reserved;
/* Need the window ID. If grCurrent.window is not a valid window, */
/* Use the default Tk main window. */
xwind = grCurrent.windowid;
if (xwind == 0)
{
xwind = Tk_WindowId(Tk_MainWindow(magicinterp));
if (xwind == 0)
xwind = DefaultRootWindow(grXdpy);
}
if (usableColors > 256) usableColors = 256;
if (grClass != 4)
TxPrintf("Unable to allocate %d planes in default colormap; "
"making a new one.\n", grDisplay.planeCount);
#ifdef MAGIC_WRAPPER
if (grClass == 3) GrTkInstalledCMap = TRUE;
#endif
if (grDisplay.planeCount <= 8)
{
grDisplay.basepixel = color_base;
grXcmap = XCreateColormap(grXdpy, xwind, grVisual, AllocAll);
}
else {
grDisplay.basepixel = 0;
grXcmap = XCreateColormap(grXdpy, xwind, grVisual, AllocNone);
}
for (j = 0; j < grDisplay.planeCount; j++) grDisplay.planes[j] = 1 << j;
status = 1;
for (i = 0; i < usableColors; i++) colors[i].pixel = i;
XQueryColors(grXdpy, XDefaultColormap(grXdpy, grXscrn),
colors, usableColors);
if (grDisplay.planeCount <= 8)
XStoreColors(grXdpy, grXcmap, colors, usableColors);
grDisplay.realColors = (grDisplay.basepixel +
grDisplay.colorCount > usableColors) ?
usableColors - grDisplay.basepixel: grDisplay.colorCount;
if ((grDisplay.realColors != grDisplay.colorCount)
&& (grDisplay.planeCount <= 8))
{
TxPrintf("Only %d contiguous colors were available.\n",
grDisplay.realColors);
grDisplay.colorCount = grDisplay.realColors;
}
}
if (grXcmap == 0 || status ==0)
{
TxError( "Tk/X11 setup: Unable to allocate %d planes\n",
grDisplay.planeCount);
MainExit(1);
}
}
/* There is a non-obvious mapping between plane depth and the names */
/* of the corresponding style and cmap filenames to load for each */
/* display type. */
switch(grDisplay.depth) {
case 0: case 1:
grDStyleType = "bw";
grCMapType = NULL;
/* This must be called here; because in B/W the colormap */
/* is useless, it will not be called by the style file */
/* load procedure. */
GrTkSetCMap();
break;
case 7: case 8:
grDStyleType = "7bit";
grCMapType = "7bit";
break;
default:
grDStyleType = "24bit";
grCMapType = "24bit";
break;
}
/* Globally-accessed variables */
grNumBitPlanes = grDisplay.depth;
grBitPlaneMask = (1 << grDisplay.depth) - 1;
HashInit(&grTkWindowTable,8,HT_WORDKEYS);
rstatus = grTkLoadFont();
return rstatus;
}
/*---------------------------------------------------------
* GrTkClose:
*
* Results:
* None.
*
* Side Effects:
* Frees fonts from the Tk font cache.
*---------------------------------------------------------
*/
void
GrTkClose ()
{
int i;
if (grXdpy == NULL) return;
XFreeGC(grXdpy, grGCStipple);
grGCStipple = NULL;
/* Free Tk fonts from the font cache */
grTkFreeFonts();
/* XCloseDisplay(grXdpy); */ /* Pop down Tk window but let Tcl/Tk */
/* do XCloseDisplay() */
}
/*---------------------------------------------------------
* GrTkFlush:
* Flush output to display.
*
* Flushing is done automatically the next time input is read,
* so this procedure should not be used very often.
*
* Results: None.
*
* Side Effects: None.
*---------------------------------------------------------
*/
void
GrTkFlush ()
{
GR_TK_FLUSH_BATCH();
}
/*
* ---------------------------------------------------------------------------
*
* MagicEventProc ---
*
* Tk Event Handler
*
* Results:
* None.
*
* Side Effects:
* Calls functions in response to Tk events.
*
* ---------------------------------------------------------------------------
*/
void
MagicEventProc(clientData, xevent)
ClientData clientData;
XEvent *xevent;
{
HashEntry *entry;
Tk_Window wind = (Tk_Window)clientData;
MagWindow *mw;
unsigned char LocRedirect = TxInputRedirect;
XKeyPressedEvent *KeyPressedEvent = (XKeyPressedEvent *) xevent;
KeySym keysym;
int nbytes;
/* Keys and Buttons: Determine expansion of macros or redirect
* keys to the terminal/console.
*/
switch (xevent->type)
{
case ButtonPress:
{
XButtonEvent *ButtonEvent = (XButtonEvent *) xevent;
int txbutton;
switch (ButtonEvent->button) {
case Button1:
txbutton = TX_LEFT_BUTTON;
keysym = XK_Pointer_Button1;
break;
case Button2:
txbutton = TX_MIDDLE_BUTTON;
keysym = XK_Pointer_Button2;
break;
case Button3:
txbutton = TX_RIGHT_BUTTON;
keysym = XK_Pointer_Button3;
break;
case Button4:
txbutton = TX_BUTTON_4;
keysym = XK_Pointer_Button4;
break;
case Button5:
txbutton = TX_BUTTON_5;
keysym = XK_Pointer_Button5;
break;
}
nbytes = 0;
entry = HashLookOnly(&grTkWindowTable, (char *)wind);
mw = (entry)?(MagWindow *)HashGetValue(entry):0;
/* Hack---non-wrapper versions of magic have */
/* fixed handlers for the frame. */
if (mw && (mw->w_flags & WIND_SCROLLBARS))
if (WindButtonInFrame(mw, ButtonEvent->x,
grXToMagic(ButtonEvent->y),
txbutton))
break;
goto keys_and_buttons;
}
break;
case KeyPress:
{
int keywstate, keymod, idx, idxmax;
char inChar[10];
Tcl_Channel outChannel = Tcl_GetStdChannel(TCL_STDOUT);
nbytes = XLookupString(KeyPressedEvent, inChar, sizeof(inChar),
&keysym, NULL);
if (IsModifierKey(keysym)) break; /* Don't handle modifiers */
entry = HashLookOnly(&grTkWindowTable, (char *)wind);
mw = (entry)?(MagWindow *)HashGetValue(entry):0;
keys_and_buttons:
grCurrent.window = wind;
grCurrent.windowid = Tk_WindowId(wind);
grCurrent.mw = mw;
keymod = (LockMask | ControlMask | ShiftMask)
& KeyPressedEvent->state;
#ifdef __APPLE__
if (KeyPressedEvent->state & (Mod1Mask | Mod2Mask |
Mod3Mask | Mod4Mask | Mod5Mask))
keymod |= Mod1Mask;
#else
keymod |= (Mod1Mask & KeyPressedEvent->state);
#endif
if (nbytes == 0)
{
/* No ASCII equivalent */
keywstate = (keymod << 16) | (keysym & 0xffff);
}
else if (!strncmp(XKeysymToString(keysym), "KP_", 3))
{
/* keypad key (special case---would like to */
/* differentiate between shift-KP-# and # itself) */
keymod &= ~ShiftMask;
keywstate = (keymod << 16) | (keysym & 0xffff);
nbytes = 0;
}
else /* ASCII-valued character */
{
if (!(keymod & (LockMask | Mod1Mask))) {
if (!(keymod & ControlMask))
keymod &= ~ShiftMask;
else if (!(keymod & ShiftMask))
keymod &= ~ControlMask;
}
}
idxmax = (nbytes == 0) ? 1 : nbytes;
for (idx = 0; idx < idxmax; idx++)
{
if (xevent->type == KeyPress && inChar[idx] == 3)
{
/* Ctrl-C interrupt */
if (SigInterruptPending)
MainExit(0); /* double Ctrl-C */
else
sigOnInterrupt(0); /* Set InterruptPending */
TxError("Tk Caught Ctrl-C Interrupt\n");
TxFlush();
/* MainExit(0); */
break;
}
else if (nbytes > 0)
{
if ((keymod & ControlMask) && (inChar[idx] < 32))
inChar[idx] += 'A' - 1;
keywstate = (keymod << 16) | ((int)inChar[idx] & 0xff);
}
/* Allow buttons to bypass the console and be */
/* treated as macros. */
if (LocRedirect == TX_INPUT_REDIRECTED)
{
switch (keysym)
{
case XK_Pointer_Button1:
case XK_Pointer_Button2:
case XK_Pointer_Button3:
case XK_Pointer_Button4:
case XK_Pointer_Button5:
LocRedirect = TX_INPUT_NORMAL;;
break;
}
}
if ((LocRedirect == TX_INPUT_REDIRECTED) && TxTkConsole)
{
Tcl_SavedResult state;
static char outstr[] = "::tkcon::Insert .text \"x\" ";
/* Translate Control-H to BackSpace */
if ((keymod & ControlMask) && (keysym == XK_h))
keysym = XK_BackSpace;
switch (keysym)
{
case XK_Return:
TxSetPoint(KeyPressedEvent->x,
grXToMagic(KeyPressedEvent->y),
grCurrent.mw->w_wid);
TxInputRedirect = TX_INPUT_PROCESSING;
Tcl_EvalEx(consoleinterp, "::tkcon::Eval .text",
19, 0);
TxInputRedirect = TX_INPUT_NORMAL;
TxSetPrompt('%');
Tcl_SaveResult(magicinterp, &state);
Tcl_EvalEx(magicinterp, "history event 0", 15,
0);
MacroDefine(mw->w_client, (int)'.',
Tcl_GetStringResult(magicinterp), NULL,
FALSE);
Tcl_RestoreResult(magicinterp, &state);
break;
case XK_Up:
Tcl_EvalEx(consoleinterp, "::tckon::Event -1",
17, 0);
break;
case XK_Down:
Tcl_EvalEx(consoleinterp, "::tckon::Event 1",
16, 0);
break;
case XK_Left:
Tcl_EvalEx(consoleinterp, ".text mark set insert "
"insert-1c ; .text see insert", 50, 0);
break;
case XK_Right:
Tcl_EvalEx(consoleinterp, ".text mark set insert "
"insert+1c ; .text see insert", 50, 0);
break;
case XK_BackSpace: case XK_Delete:
Tcl_EvalEx(consoleinterp, ".text delete insert-1c ; "
".text see insert", 41, 0);
break;
case XK_quotedbl: case XK_backslash: case XK_bracketleft:
outstr[23] = '\\';
outstr[24] = inChar[idx];
outstr[25] = '\"';
Tcl_EvalEx(consoleinterp, outstr, 26, 0);
outstr[24] = '\"';
outstr[25] = '\0';
default:
outstr[23] = inChar[idx];
Tcl_EvalEx(consoleinterp, outstr, 25, 0);
break;
}
}
else if (LocRedirect == TX_INPUT_REDIRECTED)
{
int tl;
if (TxBuffer == NULL)
{
TxBuffer = Tcl_Alloc(2);
*TxBuffer = '\0';
tl = 0;
}
else
{
tl = strlen(TxBuffer);
TxBuffer = Tcl_Realloc(TxBuffer, tl + 2);
}
if (keysym == XK_BackSpace || keysym == XK_Delete)
{
if (tl >= 0)
{
if (tl > 0)
{
*(TxBuffer + tl - 1) = '\0';
TxPrintf("\b");
}
TxPrintf(" \b");
TxFlushOut();
}
}
else if (keysym == XK_Return)
{
*(TxBuffer + tl) = '\n';
*(TxBuffer + tl + 1) = '\0';
if (tl != 0) MacroDefine(mw->w_client, (int)'.',
TxBuffer, NULL, FALSE);
TxInputRedirect = TX_INPUT_NORMAL;
TxSetPoint(KeyPressedEvent->x,
grXToMagic(KeyPressedEvent->y),
grCurrent.mw->w_wid);
TxPrintf("\n");
TxFlushOut();
Tcl_NotifyChannel(Tcl_GetStdChannel(TCL_STDIN),
TCL_READABLE);
}
else
{
*(TxBuffer + tl) = *(inChar + idx);
*(TxBuffer + tl + 1) = '\0';
TxPrintf("%c", *(inChar + idx));
TxFlushOut();
}
}
else
{
bool iMacro;
char *macroDef;
macroDef = MacroRetrieve(mw->w_client, keywstate, &iMacro);
/* Special handling: An imacro beginning with ':' */
/* sets the prompt to ':' and moves to the next char. */
if (macroDef != NULL && *macroDef == ':' && iMacro)
{
if (TxTkConsole)
TxSetPrompt(':');
else
{
TxPrintf("\b\b: ");
TxFlushOut();
}
memmove(macroDef, macroDef + 1, strlen(macroDef + 1) + 1);
}
macroDef = MacroSubstitute(macroDef, "%W", Tk_PathName(wind));
if (macroDef == NULL)
{
if (keysym != XK_Return)
{
char *vis = MacroName(keywstate);
TxError("Unknown macro or short command: '%s'\n", vis);
freeMagic(vis);
}
/* Print Carriage Return & Put back Tcl/Tk prompt */
TxParseString("", NULL, NULL);
}
else
{
int sl = strlen(macroDef);
if (iMacro)
{
/* Echo macro to interpreter, then redirect keys */
if (TxTkConsole)
{
char *outstring = Tcl_Alloc(sl + 20);
sprintf(outstring, ".text insert end \"%s\"",
macroDef);
Tcl_EvalEx(consoleinterp, outstring, -1, 0);
Tcl_Free(outstring);
}
else
{
TxBuffer = Tcl_Alloc(sl + 1);
strcpy(TxBuffer, macroDef);
TxPrintf("%s", macroDef);
TxFlushOut();
}
TxInputRedirect = TX_INPUT_REDIRECTED;
}
else
{
/* TxParseString is defined by tcltk/tclmagic.c
* and calls Tcl_Eval().
*/
TxSetPoint(KeyPressedEvent->x,
grXToMagic(KeyPressedEvent->y),
grCurrent.mw->w_wid);
TxParseString(macroDef, NULL, NULL);
}
freeMagic(macroDef);
}
}
}
}
break;
case VisibilityNotify:
{
XVisibilityEvent *VisEvent = (XVisibilityEvent*) xevent;
entry = HashLookOnly(&grTkWindowTable, (char *)wind);
mw = (entry)?(MagWindow *)HashGetValue(entry):0;
switch(VisEvent->state)
{
case VisibilityUnobscured:
mw->w_flags &= ~WIND_OBSCURED;
if (mw->w_backingStore == (ClientData)NULL)
{
grtkCreateBackingStore(mw);
if (mw->w_backingStore != (ClientData)NULL)
{
WindAreaChanged(mw, &mw->w_allArea);
WindUpdate();
}
}
break;
case VisibilityPartiallyObscured:
case VisibilityFullyObscured:
mw->w_flags |= WIND_OBSCURED;
break;
}
}
break;
case Expose:
{
XExposeEvent *ExposeEvent = (XExposeEvent*) xevent;
Rect screenRect;
entry = HashLookOnly(&grTkWindowTable, (char *)wind);
mw = (entry)?(MagWindow *)HashGetValue(entry):0;
grCurrent.window = wind;
grCurrent.windowid = Tk_WindowId(wind);
grCurrent.mw = mw;
screenRect.r_xbot = ExposeEvent->x;
screenRect.r_xtop = ExposeEvent->x+ExposeEvent->width;
screenRect.r_ytop = mw->w_allArea.r_ytop-ExposeEvent->y;
screenRect.r_ybot = mw->w_allArea.r_ytop -
(ExposeEvent->y + ExposeEvent->height);
if (mw->w_backingStore != (ClientData)NULL)
{
Rect surface;
(*GrLockPtr)(mw, FALSE);
(*GrGetBackingStorePtr)(mw, &screenRect);
(*GrUnlockPtr)(mw);
WindScreenToSurface(mw, &screenRect, &surface);
DBWHLRedrawPrepWindow(mw, &surface);
WindDrawBorder(mw, &screenRect);
}
else
WindAreaChanged(mw, &screenRect);
WindUpdate();
}
break;
case ConfigureNotify:
{
XConfigureEvent *ConfigureEvent = (XConfigureEvent*) xevent;
Rect screenRect;
bool need_resize;
entry = HashLookOnly(&grTkWindowTable, (char *)wind);
mw = (entry)?(MagWindow *)HashGetValue(entry):0;
grCurrent.window = wind;
grCurrent.windowid = Tk_WindowId(wind);
grCurrent.mw = mw;
screenRect.r_xbot = ConfigureEvent->x;
screenRect.r_xtop = ConfigureEvent->x + ConfigureEvent->width;
screenRect.r_ytop = grXsToMagic(ConfigureEvent->y);
screenRect.r_ybot = grXsToMagic(ConfigureEvent->y+
ConfigureEvent->height);
need_resize = (screenRect.r_xbot != mw->w_screenArea.r_xbot ||
screenRect.r_xtop != mw->w_screenArea.r_xtop ||
screenRect.r_ybot != mw->w_screenArea.r_ybot ||
screenRect.r_ytop != mw->w_screenArea.r_ytop);
WindReframe(mw, &screenRect, FALSE, FALSE);
WindRedisplay(mw);
if (need_resize) grtkCreateBackingStore(mw);
}
break;
case MapNotify:
case UnmapNotify:
case DestroyNotify: /* Do nothing */
break;
default:
TxError("Tk Event: Unknown (%d)\n", xevent->type);
TxFlush();
break;
}
}
/*---------------------------------------------------------
* x11SetDisplay:
* This routine sets the appropriate parameters so that
* Magic will work with the X display under Tcl/Tk.
*
* Under Xlib, all input events (mouse and keyboard) are
* sent to one queue which has to be polled to discover
* whether there is any input or not. To fit the Magic
* interrupt-driven input model, a helper process is
* spawned which reads and blocks on the event queue,
* sending SIGIO's to Magic when it detects input. The
* input read in the helper process is then sent to Magic
* via a communication pipe.
*
* Results: success / fail
*
* Side Effects:
*---------------------------------------------------------
*/
bool
x11SetDisplay (dispType, outFileName, mouseFileName)
char *dispType;
char *outFileName;
char *mouseFileName;
{
char *planecount;
char *fullname;
FILE* f;
bool execFailed = FALSE;
int x, y, width, height;
WindPackageType = WIND_X_WINDOWS;
TxInputRedirect = TX_INPUT_NORMAL;
grCursorType = "color";
WindScrollBarWidth = 14;
/* Set up the procedure values in the indirection table. */
GrLockPtr = GrTkLock;
GrUnlockPtr = GrTkUnlock;
GrInitPtr = GrTkInit;
GrClosePtr = GrTkClose;
GrSetCMapPtr = GrTkSetCMap;
GrEnableTabletPtr = GrTkEnableTablet;
GrDisableTabletPtr = GrTkDisableTablet;
GrSetCursorPtr = GrTkSetCursor;
GrTextSizePtr = GrTkTextSize;
GrDrawGlyphPtr = GrTkDrawGlyph;
GrReadPixelPtr = GrTkReadPixel;
GrFlushPtr = GrTkFlush;
GrCreateWindowPtr = GrTkCreate;
GrDeleteWindowPtr = GrTkDelete;
GrConfigureWindowPtr = GrTkConfigure;
GrOverWindowPtr = GrTkRaise;
GrUnderWindowPtr = GrTkLower;
GrUpdateIconPtr = GrTkIconUpdate;
GrEventPendingPtr = GrTkEventPending;
GrWindowIdPtr = GrTkWindowId;
GrWindowNamePtr = GrTkWindowName;
GrGetCursorPosPtr = grtkGetCursorPos;
GrGetCursorRootPosPtr = grtkGetCursorRootPos;
/* local indirections */
grSetSPatternPtr = grtkSetSPattern;
grPutTextPtr = grtkPutText;
grFontTextPtr = grtkFontText;
grDefineCursorPtr = grTkDefineCursor;
grFreeCursorPtr = grTkFreeCursors;
GrBitBltPtr = GrTkBitBlt;
grDrawGridPtr = grtkDrawGrid;
grDrawLinePtr = grtkDrawLine;
grSetWMandCPtr = grtkSetWMandC;
grFillRectPtr = grtkFillRect;
grSetStipplePtr = grtkSetStipple;
grSetLineStylePtr = grtkSetLineStyle;
grSetCharSizePtr = grtkSetCharSize;
grFillPolygonPtr = grtkFillPolygon;
GrFreeBackingStorePtr = grtkFreeBackingStore;
GrCreateBackingStorePtr = grtkCreateBackingStore;
GrGetBackingStorePtr = grtkGetBackingStore;
GrPutBackingStorePtr = grtkPutBackingStore;
GrScrollBackingStorePtr = grtkScrollBackingStore;
if (execFailed) {
TxError("Execution failed!\n");
return FALSE;
}
if (!GrTkInit(dispType)) {
return FALSE;
};
Tk_GetVRootGeometry(Tk_MainWindow(magicinterp), &x, &y, &width, &height);
GrScreenRect.r_xbot = x;
GrScreenRect.r_ybot = y;
GrScreenRect.r_xtop = x + width;
GrScreenRect.r_ytop = y + height;
return Tk_MainWindow(magicinterp) ? TRUE : FALSE;
}
extern void MakeWindowCommand();
/*
* ----------------------------------------------------------------------------
*
* GrTkCreate --
* Create a new window under Tk.
* Bind Tk window to Magic Window w.
*
* Results:
* Success/Failure
*
* Side Effects:
* Window created and mapped.
*
* ----------------------------------------------------------------------------
*/
bool
GrTkCreate(w, name)
MagWindow *w;
char *name;
{
Tk_Window tkwind, tktop;
Window wind;
static int WindowNumber = 0;
HashEntry *entry;
char *windowplace;
char windowname[10];
int x = w->w_frameArea.r_xbot;
int y = grMagicToXs(w->w_frameArea.r_ytop);
int width = w->w_frameArea.r_xtop - w->w_frameArea.r_xbot;
int height = w->w_frameArea.r_ytop - w->w_frameArea.r_ybot;
unsigned long attribmask = CWBackPixel | CWBorderPixel;
XSetWindowAttributes grAttributes;
int grDepth;
GrTkFlush();
WindSeparateRedisplay(w);
sprintf(windowname, ".magic%d", WindowNumber + 1);
if (windowplace = XGetDefault(grXdpy, "magic", windowname))
{
XParseGeometry(windowplace,&x,&y,
(unsigned int *)&width,(unsigned int *)&height);
w->w_frameArea.r_xbot = x;
w->w_frameArea.r_xtop = x+width;
w->w_frameArea.r_ytop = grXsToMagic(y);
w->w_frameArea.r_ybot = grXsToMagic(y+height);
WindReframe(w,&(w->w_frameArea),FALSE,FALSE);
}
grAttributes.background_pixel = WhitePixel(grXdpy,grXscrn);
grAttributes.border_pixel = BlackPixel(grXdpy,grXscrn);
grDepth = grDisplay.depth;
if(grClass == 3) grDepth = 8; /* Needed since grDisplay.depth is reset
to 7 if Pseudocolor */
if (tktop = Tk_MainWindow(magicinterp))
{
if (!WindowNumber)
{
/* To do: deal with grVisual---destroy and recreate */
/* top frame if necessary */
if (Tk_WindowId(tktop) == 0)
{
Tk_SetWindowVisual(tktop, grVisual, grDepth, grXcmap);
}
else
{
/* The Top-level window has already been mapped. We can't mess */
/* with it's visual. If the title is "wish", we'll assume that */
/* nobody else is claiming it, and unmap it. */
if (!strcmp(Tk_Name(tktop), "wish")) Tk_UnmapWindow(tktop);
}
}
}
else
return 0; /* Failure condition */
/* Last parameter "" indicates a top-level window in the space of */
/* the parent. */
if (name == NULL)
tkwind = Tk_CreateWindowFromPath(magicinterp, tktop, windowname, "");
else
tkwind = Tk_CreateWindowFromPath(magicinterp, tktop, name, NULL);
/* TxError("Created window named \"%s\", tkwind = 0x%x\n",
windowname, tkwind); */
if (tkwind != 0)
{
grCurrent.window = tkwind;
grCurrent.mw = w;
w->w_grdata = (ClientData) tkwind;
entry = HashFind(&grTkWindowTable, (char *)tkwind);
HashSetValue(entry,w);
/* set the window attributes, since Tk doesn't do this in the */
/* Tk_CreateWindowFromPath() function. */
Tk_ChangeWindowAttributes(tkwind, attribmask, &grAttributes);
/* ensure that the visual is what we wanted, if possible to change */
Tk_SetWindowVisual(tkwind, grVisual, grDepth, grXcmap);
/* map the window, if necessary */
Tk_MapWindow(tkwind);
/* use x, y, width, height to size and position the window */
Tk_GeometryRequest(tkwind, width, height);
/* Tk_MoveResizeWindow(tkwind, x, y, width, height); */
wind = Tk_WindowId(tkwind);
grCurrent.windowid = wind;
if (!WindowNumber)
{
grGCFill = XCreateGC(grXdpy, wind, 0, 0);
grGCDraw = XCreateGC(grXdpy, wind, 0, 0);
grGCText = XCreateGC(grXdpy, wind, 0, 0);
grGCCopy = XCreateGC(grXdpy, wind, 0, 0);
grGCGlyph = XCreateGC(grXdpy, wind, 0, 0);
}
XSetPlaneMask(grXdpy, grGCGlyph, AllPlanes);
Tk_DefineCursor(tkwind, grCurrent.cursor);
GrTkIconUpdate(w, w->w_caption);
/*----------------------------------------------------------------------*/
/* If we're using TkCon in a PseudoColor visual, we need to set the */
/* console's colormap to match the magic window. TkCon need know */
/* nothing about this action (i.e., don't call Tk_SetWindowColormap()). */
/* Make a call to a routine to reassign colors to match magic's solid */
/* colors. */
/*----------------------------------------------------------------------*/
if (TxTkConsole && !WindowNumber)
{
Window parent, rret, *clist;
unsigned int iret;
if (Tk_Visual(tktop) == Tk_Visual(tkwind))
{
XQueryTree(grXdpy, Tk_WindowId(tktop), &rret, &parent, &clist, &iret);
/* Overlay plane windows won't have the same visual in both the */
/* console and the layout windows; in such case, there should */
/* be no need to set the colormap. */
XSetWindowColormap(grXdpy, parent, grXcmap);
if (clist != NULL) XFree(clist);
}
else
GrTkInstalledCMap = FALSE;
Tcl_EvalEx(consoleinterp, "catch repaintconsole", 20, 0);
}
WindowNumber++;
/* set up Tk event handler to start processing */
Tk_CreateEventHandler(tkwind, ExposureMask | StructureNotifyMask
| ButtonPressMask | KeyPressMask | VisibilityChangeMask,
(Tk_EventProc *)MagicEventProc, (ClientData) tkwind);
/* set up commands to be passed expressly to this window */
MakeWindowCommand((name == NULL) ? windowname : name, w);
/*--------------------------------------------------------------*/
/* In a PseudoColor visual + GUI wrapper environment, we need */
/* to make sure that the GUI window (layout's parent) has the */
/* same colormap as the layout. Tk need know nothing about */
/* this sleight-of-hand. */
/*--------------------------------------------------------------*/
if ((grClass == 3) && !Tk_IsTopLevel(tkwind))
{
Tk_Window tklayout = tkwind;
Window parent, rret, *clist;
unsigned int iret;
while (!Tk_IsTopLevel(tklayout)) tklayout = Tk_Parent(tklayout);
XQueryTree(grXdpy, Tk_WindowId(tklayout), &rret, &parent, &clist, &iret);
/* Avoid trying to set the colormap of a window with an */
/* incompatible visual (see above). */
if (Tk_Visual(tklayout) == Tk_Visual(tkwind))
{
XSetWindowColormap(grXdpy, parent, grXcmap);
Tk_SetWindowColormap(tklayout, grXcmap);
}
else
{
GrTkInstalledCMap = FALSE;
TxError("Warning: Cannot match colormap of wrapper to layout.\n");
}
if (clist != NULL) XFree(clist);
}
/* Install the colormap in all associated windows, for pseudocolor */
/* visuals, if required */
if (grClass == 3) XInstallColormap(grXdpy, grXcmap);
return 1;
}
else
{
TxError("Could not open new Tk window\n");
}
return 0;
}
/*
* ----------------------------------------------------------------------------
*
* GrTkDelete --
* Destroy an X window.
*
* Results:
* None.
*
* Side effects:
* Window destroyed.
*
* ----------------------------------------------------------------------------
*/
void
GrTkDelete(w)
MagWindow *w;
{
Tk_Window xw;
HashEntry *entry;
xw = (Tk_Window) w->w_grdata;
entry = HashLookOnly(&grTkWindowTable, (char *)xw);
HashSetValue(entry,NULL);
Tcl_DeleteCommand(magicinterp, Tk_PathName(xw));
Tk_DestroyWindow(xw);
}
/*
* ----------------------------------------------------------------------------
*
* GrTkConfigure --
* Resize/ Move an existing X window.
*
* Results:
* None.
*
* Side Effects:
* Window reconfigured to w->w_frameArea.
*
* ----------------------------------------------------------------------------
*/
void
GrTkConfigure(w)
MagWindow *w;
{
if (w->w_flags & WIND_OFFSCREEN) return;
Tk_MoveResizeWindow((Tk_Window)w->w_grdata,
w->w_frameArea.r_xbot, grMagicToXs(w->w_frameArea.r_ytop),
w->w_frameArea.r_xtop - w->w_frameArea.r_xbot,
w->w_frameArea.r_ytop - w->w_frameArea.r_ybot);
}
/*
* ----------------------------------------------------------------------------
*
* GrTkRaise --
* Raise a window to the top of the screen such that nothing
* obscures it.
*
* Results:
* None.
*
* Side Effects:
* Window raised.
*
* ----------------------------------------------------------------------------
*/
void
GrTkRaise(w)
MagWindow *w;
{
Tk_Window tkwind;
if (w->w_flags & WIND_OFFSCREEN) return;
tkwind = (Tk_Window)w->w_grdata;
Tk_RestackWindow(tkwind, Above, NULL);
}
/*
* ----------------------------------------------------------------------------
*
* GrTkLower --
* Lower a window below all other X windows.
* obscures it.
*
* Results:
* None.
*
* Side Effects:
* Window lowered.
*
* ----------------------------------------------------------------------------
*/
void
GrTkLower(w)
MagWindow *w;
{
Tk_Window tkwind;
if (w->w_flags & WIND_OFFSCREEN) return;
tkwind = (Tk_Window)w->w_grdata;
Tk_RestackWindow(tkwind, Below, NULL);
}
/*
* ----------------------------------------------------------------------------
*
* GrTkLock --
* Lock a window and set global variables "grCurrent.window"
* and "grCurrent.mw" to reference the locked window.
*
* Results:
* None.
*
* Side Effects:
* Window locked.
*
* ----------------------------------------------------------------------------
*/
void
GrTkLock(w, flag)
MagWindow *w;
bool flag;
{
grSimpleLock(w, flag);
if ( w != GR_LOCK_SCREEN )
{
grCurrent.mw = w;
if (w->w_flags & WIND_OFFSCREEN)
{
grCurrent.window = NULL;
grCurrent.windowid = (Pixmap) w->w_grdata;
}
else
{
grCurrent.window = (Tk_Window) w->w_grdata;
grCurrent.windowid = Tk_WindowId(grCurrent.window);
}
}
}
/*
* ----------------------------------------------------------------------------
*
* GrTkUnlock --
* Unlock a window, flushing stuff out to the display.
*
* Results:
* None.
*
* Side Effects:
* Window unlocked.
* Display update.
*
* ----------------------------------------------------------------------------
*/
void
GrTkUnlock(w)
MagWindow *w;
{
GR_TK_FLUSH_BATCH();
grSimpleUnlock(w);
}
/*
*-------------------------------------------------------------------------
* GrTkEventPending -- check for pending graphics events.
* Here we use the X11 check for window events, because Tcl/Tk doesn't
* allows peeking into its event queue without executing whatever is
* in the queue.
*
* Results:
* TRUE if an event is in the event queue.
*
* Side effects:
* Hopefully none (put back the event!)
*
*-------------------------------------------------------------------------
*/
bool
GrTkEventPending()
{
Tk_Window tkwind = grCurrent.window;
Window wind = grCurrent.windowid;
XEvent genEvent;
bool retval;
if (wind == 0) return FALSE;
retval = XCheckWindowEvent(grXdpy, wind, ExposureMask
| StructureNotifyMask | ButtonPressMask
| KeyPressMask, &genEvent);
if (retval) XPutBackEvent(grXdpy, &genEvent);
return retval;
}
/*
*-------------------------------------------------------------------------
*
* GrTkIconUpdate -- updates the icon text with the window script
*
* Results: none
*
* Side Effects: changes the icon text
*
*-------------------------------------------------------------------------
*/
void
GrTkIconUpdate(w, text) /* See Blt code */
MagWindow *w;
char *text;
{
Tk_Window tkwind;
Window wind;
XClassHint class;
char *brack;
if (w->w_flags & WIND_OFFSCREEN) return;
tkwind = (Tk_Window)(w->w_grdata);
if (tkwind == NULL) {
tkwind = Tk_MainWindow(magicinterp);
if (tkwind == NULL) return;
}
wind = Tk_WindowId(tkwind);
if (wind == 0) return;
class.res_name = "magic";
class.res_class = "magic";
XSetClassHint( grXdpy, wind, &class);
if (brack = strchr(text,'['))
{
brack--;
*brack = 0;
XSetIconName(grXdpy,wind,text);
XStoreName(grXdpy,wind,text);
*brack = ' ';
return;
}
if (brack = strrchr(text,' ')) text = brack+1;
XSetIconName(grXdpy,wind,text);
XStoreName(grXdpy,wind,text);
}
/*
*-------------------------------------------------------------------------
* GrTkWindowId --
* Get magic's ID number from the indicated MagWindow structure
*
* Results:
* The window ID number
*
* Side effects:
* None.
*-------------------------------------------------------------------------
*/
int
GrTkWindowId(tkname)
char *tkname;
{
Tk_Window tkwind;
MagWindow *mw;
HashEntry *entry;
int id = 0;
tkwind = Tk_NameToWindow(magicinterp, tkname, Tk_MainWindow(magicinterp));
if (tkwind != NULL)
{
entry = HashLookOnly(&grTkWindowTable, (char *)tkwind);
mw = (entry) ? (MagWindow *)HashGetValue(entry) : 0;
if (mw) id = mw->w_wid;
}
return id;
}
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