main()
{
Window w2;
Display *dpy = XOpenDisplay(NIL);
assert(dpy);
Screen *scr = DefaultScreenOfDisplay(dpy);
// CreateWindow
Window w = XCreateWindow(dpy, RootWindowOfScreen(scr), 10, 100, 200, 300, 0, CopyFromParent,
CopyFromParent, CopyFromParent,
0, NIL);
XDestroyWindow(dpy, w);
// CreateWindow with arguments
XSetWindowAttributes swa;
swa.background_pixel = WhitePixelOfScreen(scr);
swa.bit_gravity = NorthWestGravity;
swa.border_pixel = BlackPixelOfScreen(scr);
swa.colormap = DefaultColormapOfScreen(scr);
swa.cursor = None;
swa.win_gravity = NorthGravity;
w = XCreateWindow(dpy, RootWindowOfScreen(scr), 10, 100, 200, 300, 0, CopyFromParent,
CopyFromParent, CopyFromParent,
CWBackPixel | CWBitGravity | CWBorderPixel | CWColormap | CWCursor | CWWinGravity,
&swa);
// CreateWindow with other arguments
XDestroyWindow(dpy, w);
Pixmap pixmap = XCreatePixmap(dpy, RootWindowOfScreen(scr), 45, 25, DefaultDepthOfScreen(scr));
assert(pixmap);
swa.background_pixmap = pixmap;
swa.border_pixmap = pixmap;
w = XCreateWindow(dpy, RootWindowOfScreen(scr), 10, 100, 200, 300, 0, CopyFromParent,
CopyFromParent, CopyFromParent,
CWBackPixmap | CWBorderPixmap,
&swa);
// ChangeWindowAttributes
swa.backing_planes = 0x1;
swa.backing_pixel = WhitePixelOfScreen(scr);
swa.save_under = True;
swa.event_mask = KeyPressMask | KeyReleaseMask;
swa.do_not_propagate_mask = ButtonPressMask | Button4MotionMask;
swa.override_redirect = False;
XChangeWindowAttributes(dpy, w, CWBackingPlanes | CWBackingPixel | CWSaveUnder | CWEventMask
| CWDontPropagate | CWOverrideRedirect, &swa);
// GetWindowAttributes
XWindowAttributes wa;
Status success = XGetWindowAttributes(dpy, w, &wa);
// DestroyWindow (done)
// DestroySubwindows
w2 = XCreateWindow(dpy, w, 20, 30, 40, 50, 3, CopyFromParent, CopyFromParent, CopyFromParent, 0, NIL);
XDestroySubwindows(dpy, w);
// ChangeSaveSet
// Display *dpy2 = XOpenDisplay(NIL);
// assert(dpy2);
// XAddToSaveSet(dpy2, w);
// XCloseDisplay(dpy2);
// ReparentWindow
w2 = XCreateWindow(dpy, RootWindowOfScreen(scr), 20, 30, 40, 50, 3,
CopyFromParent, CopyFromParent, CopyFromParent, 0, NIL);
XReparentWindow(dpy, w2, w, 10, 5);
// MapWindow
XMapWindow(dpy, w);
// MapSubwindows
XMapSubwindows(dpy, w);
// UnmapWindow
XUnmapWindow(dpy, w);
// UnmapSubwindows
XMapWindow(dpy, w);
XUnmapSubwindows(dpy, w2);
XMapSubwindows(dpy, w);
// ConfigureWindow
Window w3 = XCreateWindow(dpy, w, 10, 50, 100, 10, 2,
CopyFromParent, CopyFromParent, CopyFromParent, 0, NIL);
XMapWindow(dpy, w3);
XWindowChanges wc;
wc.x = -5;
wc.y = -10;
wc.width = 50;
wc.height = 40;
wc.border_width = 7;
wc.sibling = w2;
wc.stack_mode = Opposite;
XConfigureWindow(dpy, w3,
CWX | CWY | CWWidth | CWHeight | CWBorderWidth | CWSibling | CWStackMode,
&wc);
// CirculateWindow
XCirculateSubwindows(dpy, w, RaiseLowest);
// GetGeometry
Window root;
int x, y;
unsigned width, height, border_width, depth;
XGetGeometry(dpy, w, &root, &x, &y, &width, &height, &border_width, &depth);
// QueryTree
Window parent;
Window *children;
unsigned nchildren;
success = XQueryTree(dpy, w, &root, &parent, &children, &nchildren);
XFree(children);
// InternAtom
Atom a = XInternAtom(dpy, "WM_PROTOCOLS", True);
// GetAtomName
char *string = XGetAtomName(dpy, XA_PRIMARY);
XFree(string);
// ChangeProperty
XStoreName(dpy, w, "test window");
// DeleteProperty
XDeleteProperty(dpy, w, XA_WM_NAME);
// GetProperty
// TODO
// ListProperties
int num_prop;
Atom *list = XListProperties(dpy, w, &num_prop);
XFree(list);
// SetSelectionOwner
XSetSelectionOwner(dpy, XA_PRIMARY, w, 12000);
XSetSelectionOwner(dpy, XA_SECONDARY, w, CurrentTime);
// GetSelectionOwner
Window wx = XGetSelectionOwner(dpy, XA_PRIMARY);
// ConvertSelection
XConvertSelection(dpy, XA_SECONDARY, XA_CURSOR, XA_POINT, w, CurrentTime);
// SendEvent
// GrabPointer
std::cerr << "Grabbing" << std::endl;
int res = XGrabPointer(dpy, w, False, Button5MotionMask | PointerMotionHintMask,
GrabModeSync, GrabModeAsync, w, None, CurrentTime);
XSync(dpy, False);
// sleep(5);
// UngrabPointer
std::cerr << "Ungrabbing" << std::endl;
XUngrabPointer(dpy, CurrentTime);
// GrabButton
XGrabButton(dpy, 3, ShiftMask | ControlMask, w, False, PointerMotionHintMask | Button2MotionMask,
GrabModeAsync, GrabModeSync, None, None);
XGrabButton(dpy, 2, AnyModifier, w, False, PointerMotionHintMask | Button2MotionMask,
GrabModeAsync, GrabModeSync, None, None);
// UngrabButton
XUngrabButton(dpy, 2, LockMask, w);
// ChangeActivePointerGrab
XChangeActivePointerGrab(dpy, ButtonPressMask, None, CurrentTime);
// GrabKeyboard
XGrabKeyboard(dpy, w, True, GrabModeSync, GrabModeSync, 12000);
// UngrabKeyboard
XUngrabKeyboard(dpy, 13000);
// GrabKey
XGrabKey(dpy, XKeysymToKeycode(dpy, XK_Tab), ShiftMask | Mod3Mask, w, True, GrabModeSync,
GrabModeSync);
// UngrabKey
XUngrabKey(dpy, AnyKey, AnyModifier, w);
// AllowEvents
XAllowEvents(dpy, AsyncPointer, 14000);
// GrabServer
XGrabServer(dpy);
// UngrabServer
XUngrabServer(dpy);
// QueryPointer
Window child;
int root_x, root_y, win_x, win_y;
unsigned mask;
Bool bres = XQueryPointer(dpy, w, &root, &child, &root_x, &root_y, &win_x, &win_y, &mask);
// GetMotionEvents
int nevents;
XGetMotionEvents(dpy, w, 15000, 16000, &nevents);
// TranslateCoordinates
int dest_x, dest_y;
XTranslateCoordinates(dpy, w, w2, 10, 20, &dest_x, &dest_y, &child);
// WarpPointer
XWarpPointer(dpy, w, w2, 0, 0, 100, 100, 20, 30);
// SetInputFocus
XSetInputFocus(dpy,w, RevertToPointerRoot, 17000);
XSetInputFocus(dpy, PointerRoot, RevertToPointerRoot, 17000);
// GetInputFocus
Window focus;
int revert_to;
XGetInputFocus(dpy, &focus, &revert_to);
// QueryKeymap
char keys_return[32];
XQueryKeymap(dpy, keys_return);
// OpenFont
Font fid = XLoadFont(dpy, "cursor");
// CloseFont
XUnloadFont(dpy, fid);
// QueryFont
XFontStruct *fs = XLoadQueryFont(dpy, "cursor");
assert(fs);
// QueryTextExtents
int direction, font_ascent, font_descent;
XCharStruct overall;
XQueryTextExtents(dpy, fs -> fid, "toto", 4, &direction, &font_ascent, &font_descent, &overall);
XQueryTextExtents(dpy, fs -> fid, "odd__length", 11, &direction, &font_ascent, &font_descent, &overall);
XChar2b c2bs;
c2bs.byte1 = '$';
c2bs.byte2 = 'B';
XQueryTextExtents16(dpy, fs -> fid, &c2bs, 1, &direction, &font_ascent, &font_descent, &overall);
XQueryTextExtents(dpy, fs -> fid, longString, strlen(longString), &direction, &font_ascent,
&font_descent, &overall);
// ListFonts
int actual_count;
char **fontList = XListFonts(dpy, "*", 100, &actual_count);
XFree((char *)fontList);
// ListFontsWithInfo
int count;
XFontStruct *info;
char **names = XListFontsWithInfo(dpy, "*", 100, &count, &info);
XFreeFontInfo(names, info, count);
// SetFontPath
// GetFontPath
int npaths;
char **charList = XGetFontPath(dpy, &npaths);
char **charList2 = new char *[npaths + 1];
memcpy(charList2, charList, npaths * sizeof(char *));
charList2[npaths] = charList2[0];
XSetFontPath(dpy, charList2, npaths + 1);
XSetFontPath(dpy, charList, npaths); // Reset to some reasonnable value
XFreeFontPath(charList);
delete [] charList2;
// CreatePixmap
Pixmap pix2 = XCreatePixmap(dpy, w, 100, 200, DefaultDepthOfScreen(scr));
// FreePixmap
XFreePixmap(dpy, pix2);
// CreateGC
Pixmap bitmap = XCreateBitmapFromData(dpy, RootWindowOfScreen(scr),
"\000\000\001\000\000\001\000\000\001\377\377\377", 3, 4);
XGCValues gcv;
gcv.function = GXand;
gcv.plane_mask = 0x1;
gcv.foreground = WhitePixelOfScreen(scr);
gcv.background = BlackPixelOfScreen(scr);
gcv.line_width = 2;
gcv.line_style = LineDoubleDash;
gcv.cap_style = CapProjecting;
gcv.join_style = JoinRound;
gcv.fill_style = FillStippled;
gcv.fill_rule = EvenOddRule;
gcv.arc_mode = ArcPieSlice;
gcv.tile = pixmap;
gcv.stipple = bitmap;
gcv.ts_x_origin = 3;
gcv.ts_y_origin = 4;
gcv.font = fs -> fid;
gcv.subwindow_mode = ClipByChildren;
gcv.graphics_exposures = True;
gcv.clip_x_origin = 5;
gcv.clip_y_origin = 6;
gcv.clip_mask = bitmap;
gcv.dash_offset = 1;
gcv.dashes = 0xc2;
GC gc = XCreateGC(dpy, w,
GCFunction | GCPlaneMask | GCForeground | GCBackground | GCLineWidth
| GCLineStyle | GCCapStyle | GCJoinStyle | GCFillStyle | GCFillRule | GCTile
| GCStipple | GCTileStipXOrigin | GCTileStipYOrigin | GCFont | GCSubwindowMode
| GCGraphicsExposures | GCClipXOrigin | GCClipYOrigin | GCClipMask | GCDashOffset
| GCDashList | GCArcMode,
&gcv);
// ChangeGC
gcv.function = GXandReverse;
// Only a few of these should appear, since the values are cached on the client side by the Xlib.
XChangeGC(dpy, gc, GCFunction | GCLineStyle | GCStipple | GCGraphicsExposures | GCDashList, &gcv);
// CopyGC
GC gc2 = XCreateGC(dpy, w, 0, NIL);
XCopyGC(dpy, gc, GCFunction | GCLineStyle | GCStipple | GCGraphicsExposures | GCDashList, gc2);
// SetDashes
XSetDashes(dpy, gc, 3, "\001\377\001", 3);
// SetClipRectangles
XRectangle rectangles[] = { { 10, 20, 30, 40 }, { 100, 200, 5, 3 }, { -5, 1, 12, 24 } };
XSetClipRectangles(dpy, gc, 12, 9, rectangles, SIZEOF(rectangles), Unsorted);
// FreeGC
// done already
// ClearArea
XClearArea(dpy, w, 30, 10, 10, 100, False);
// CopyArea
XCopyArea(dpy, w, pixmap, gc, 0, 0, 100, 100, 10, 10);
// CopyPlane
// This won't work if the Screen doesn't have at least 3 planes
XCopyPlane(dpy, pixmap, w, gc, 20, 10, 40, 30, 0, 0, 0x4);
// PolyPoint
XDrawPoint(dpy, w, gc, 1, 2);
XPoint points[] = { { 3, 4 }, { 5, 6 } };
XDrawPoints(dpy, w, gc, points, SIZEOF(points), CoordModeOrigin);
// PolyLine
XDrawLines(dpy, w, gc, points, SIZEOF(points), CoordModePrevious);
// PolySegment
XSegment segments[] = { { 7, 8, 9, 10 }, { 11, 12, 13, 14 }, { 15, 16, 17, 18 } };
XDrawSegments(dpy, w, gc, segments, SIZEOF(segments));
// PolyRectangle
XDrawRectangles(dpy, w, gc, rectangles, SIZEOF(rectangles));
// PolyArc
XArc arcs[] = { { 10, 20, 30, 40, 50, 60 }, { -70, 80, 90, 100, 110, 120 },
{ 10, 20, 30, 40, 50, -30 } };
XDrawArcs(dpy, w, gc, arcs, SIZEOF(arcs));
// FillPoly
XFillPolygon(dpy, w, gc, points, SIZEOF(points), Convex, CoordModePrevious);
// PolyFillRectangle
XFillRectangles(dpy, w, gc, rectangles, SIZEOF(rectangles));
// PolyFillArc
XFillArcs(dpy, w, gc, arcs, SIZEOF(arcs));
// PutImage
// GetImage
XImage *image = XGetImage(dpy, w, 10, 20, 40, 30, AllPlanes, ZPixmap);
XPutImage(dpy, w, gc, image, 0, 0, 50, 60, 40, 30);
XSync(dpy, False); // Make the next request starts at the beginning of a packet
// PolyText8
XTextItem textItems[3];
textItems[0].chars = "toto";
textItems[0].nchars = strlen(textItems[0].chars);
textItems[0].delta = -3;
textItems[0].font = fs->fid;
textItems[1].chars = "titi";
textItems[1].nchars = strlen(textItems[1].chars);
textItems[1].delta = 3;
textItems[1].font = None;
textItems[2].chars = "tutu";
textItems[2].nchars = strlen(textItems[2].chars);
textItems[2].delta = 0;
textItems[2].font = fs->fid;
XDrawText(dpy, w, gc, 10, 10, textItems, 3);
XTextItem textItems2[3];
textItems2[0].chars = "totox";
textItems2[0].nchars = strlen(textItems2[0].chars);
textItems2[0].delta = -3;
textItems2[0].font = fs->fid;
textItems2[1].chars = "titi";
textItems2[1].nchars = strlen(textItems2[1].chars);
textItems2[1].delta = 3;
textItems2[1].font = None;
textItems2[2].chars = "tutu";
textItems2[2].nchars = strlen(textItems2[2].chars);
textItems2[2].delta = 0;
textItems2[2].font = fs->fid;
XDrawText(dpy, w, gc, 10, 10, textItems2, 3);
// PolyText16
XChar2b c2b2[] = { 0, 't', 0, 'x' };
XTextItem16 items16[] = { { &c2bs, 1, -5, None }, { NULL, 0, 0, None }, { c2b2, 2, 0, fs -> fid } };
XDrawText16(dpy, w, gc, 10, 0, items16, SIZEOF(items16));
// ImageText8
XDrawImageString(dpy, w, gc, 10, 10, "toto", 4);
// ImageText16
XDrawImageString16(dpy, w, gc, 10, 10, &c2bs, 1);
XDrawImageString16(dpy, w, gc, 10, 20, c2b2, 2);
// CreateColormap
// Don't forget to tell the kids how it was when we had only 8 bits per pixel.
Colormap colormap = XCreateColormap(dpy, w, DefaultVisualOfScreen(scr), None);
// FreeColormap
XFreeColormap(dpy, colormap);
colormap = XCreateColormap(dpy, w, DefaultVisualOfScreen(scr), None);
// CopyColormapAndFree
Colormap colormap2 = XCopyColormapAndFree(dpy, colormap);
// InstallColormap
XInstallColormap(dpy, colormap2);
// UninstallColormap
XUninstallColormap(dpy, colormap2);
// ListInstalledColormaps
int num;
Colormap *colormapList = XListInstalledColormaps(dpy, w, &num);
// AllocColor
XColor screen;
screen.red = 0;
screen.green = 32767;
screen.blue = 65535;
screen.flags = DoRed | DoGreen | DoBlue;
success = XAllocColor(dpy, colormap, &screen);
// AllocNamedColor
XColor screen2, exact;
success = XAllocNamedColor(dpy, colormap, "Wheat", &screen2, &exact);
// AllocColorCells
unsigned long plane_masks, pixels;
success = XAllocColorCells(dpy, colormap, False, &plane_masks, 1, &pixels, 1);
// AllocColorPlanes
unsigned long rmask, gmask, bmask;
success = XAllocColorPlanes(dpy, colormap, False, &pixels, 1, 0, 0, 0, &rmask, &gmask, &bmask);
// FreeColors
unsigned long pixels2[2] = { screen.pixel, screen2.pixel };
XFreeColors(dpy, colormap, pixels2, 2, 0);
// StoreColors
success = XAllocColorCells(dpy, colormap, False, NIL, 0, pixels2, 2);
// On many contemporary (that is, year 2000) video cards, you can't allocate read / write cells
// I want my requests to be sent, however.
if (!success) {
XSetErrorHandler(errorHandler);
}
XColor colors[2];
colors[0] = screen; colors[0].pixel = pixels2[0];
colors[1] = screen2; colors[1].pixel = pixels2[1];
XStoreColors(dpy, colormap, colors, 2);
// StoreNamedColor
XStoreNamedColor(dpy, colormap, "Wheat", colors[0].pixel, DoBlue);
XSync(dpy, False);
XSetErrorHandler(NIL); // Restore the default handler
// QueryColors
screen2.pixel = WhitePixelOfScreen(scr);
XQueryColor(dpy, colormap, &screen2);
// LookupColor
success = XLookupColor(dpy, colormap, "DarkCyan", &exact, &screen);
// CreateCursor
Cursor cursor = XCreatePixmapCursor(dpy, pixmap, None, &exact, colors, 10, 10);
// CreateGlyphCursor
Cursor cursor2 = XCreateGlyphCursor(dpy, fs -> fid, fs -> fid, 'X', 0, &exact, colors);
// FreeCursor
XFreeCursor(dpy, cursor2);
// RecolorCursor
XRecolorCursor(dpy, cursor, colors, &exact);
// QueryBestSize
success = XQueryBestSize(dpy, CursorShape, RootWindowOfScreen(scr), 100, 20, &width, &height);
// QueryExtension
int major_opcode, first_event, first_error;
XQueryExtension(dpy, "toto", &major_opcode, &first_event, &first_error);
// ListExtensions
int nextensions;
char **extensionList = XListExtensions(dpy, &nextensions);
for(char **p = extensionList; nextensions; nextensions--, p++) std::cout << *p << std::endl;
XFree(extensionList);
// ChangeKeyboardMapping
// GetKeyboardMapping
int min_keycodes, max_keycodes;
XDisplayKeycodes(dpy, &min_keycodes, &max_keycodes);
int keysyms_per_keycode;
KeySym *keysyms = XGetKeyboardMapping(dpy, min_keycodes, max_keycodes - min_keycodes + 1,
&keysyms_per_keycode);
XChangeKeyboardMapping(dpy, min_keycodes, keysyms_per_keycode, keysyms,
max_keycodes - min_keycodes + 1);
// ChangeKeyboardControl
// GetKeyboardControl
XKeyboardState keyboardState;
XGetKeyboardControl(dpy, &keyboardState);
XKeyboardControl keyboardValues;
keyboardValues.key_click_percent = keyboardState.key_click_percent;
keyboardValues.bell_percent = keyboardState.bell_percent;
keyboardValues.bell_pitch = keyboardState.bell_pitch;
keyboardValues.bell_duration = keyboardState.bell_duration;
keyboardValues.led = 1;
keyboardValues.led_mode = LedModeOn;
keyboardValues.key = min_keycodes;
keyboardValues.auto_repeat_mode = AutoRepeatModeDefault;
XChangeKeyboardControl(dpy,
KBKeyClickPercent | KBBellPercent | KBBellPitch | KBBellDuration
| KBLed | KBLedMode | KBKey | KBAutoRepeatMode,
&keyboardValues);
// Bell
XBell(dpy, 90);
// ChangePointerControl
// GetPointerControl
int accel_numerator, accel_denominator, threshold;
XGetPointerControl(dpy, &accel_numerator, &accel_denominator, &threshold);
XChangePointerControl(dpy, True, True, accel_numerator, accel_denominator, threshold);
// SetScreenSaver
// GetScreenSaver
int timeout, interval, prefer_blanking, allow_exposures;
XGetScreenSaver(dpy, &timeout, &interval, &prefer_blanking, &allow_exposures);
XSetScreenSaver(dpy, timeout, interval, prefer_blanking, allow_exposures);
// ChangeHosts
// ListHosts
int nhosts;
Bool state;
XHostAddress *hostList = XListHosts(dpy, &nhosts, &state);
XHostAddress host;
host.family = FamilyInternet;
host.length = 4;
host.address = "\001\002\003\004";
XAddHost(dpy, &host);
// SetAccessControl
XSetAccessControl(dpy, EnableAccess);
// SetCloseDownMode
XSetCloseDownMode(dpy, RetainTemporary);
// KillClient
XKillClient(dpy, AllTemporary);
// RotateProperties
Atom properties[] = { XInternAtom(dpy, "CUT_BUFFER0", False),
XInternAtom(dpy, "CUT_BUFFER1", False),
XInternAtom(dpy, "CUT_BUFFER2", False) };
XRotateWindowProperties(dpy, RootWindowOfScreen(scr), properties, SIZEOF(properties), -1);
// ForceScreenSaver
XForceScreenSaver(dpy, ScreenSaverReset);
// SetPointerMapping
// GetPointerMapping
unsigned char map[64];
int map_length = XGetPointerMapping(dpy, map, 64);
XSetPointerMapping(dpy, map, map_length);
// SetModifierMapping
// GetModifierMapping
XModifierKeymap *modmap = XGetModifierMapping(dpy);
XSetModifierMapping(dpy, modmap);
// NoOperation
XNoOp(dpy);
for(;;) {
XEvent e;
XNextEvent(dpy, &e);
std::cout << "Got an event of type " << e.type << std::endl;
}
}
int main(int argc, char *argv[])
{
/* default values for -f, -i, -r, -c, -b, -g */
char *fontname = "*";
char *filename = "font.pcx";
int start_char = 32, end_char = 255;
int ccolor = 000000000;
int bcolor = 255255255;
int gcolor = 255000255;
/* X11 variables */
Display *display;
int screen_number;
int default_depth;
Window window;
Font font;
GC gc, gc2;
Pixmap pixmap;
XImage *image;
XCharStruct overall;
/* misc variables */
int bitmap_width, bitmap_height;
int max_ascent, max_descent;
int max_width, max_height;
int i, opt, x, y, cx, cy, sx, sy, lines;
unsigned long black, white;
BITMAP *bitmap;
RGB palette[256];
/* show usage if no options */
if (argc == 1) {
usage(argv[0]);
exit(EXIT_SUCCESS);
}
/* only to access bitmap operations */
install_allegro(SYSTEM_NONE, &errno, atexit);
/* parse options */
opterr = 0;
while ((opt = getopt(argc, argv, "f:o:z:c:b:g:r:h")) != EOF) {
switch (opt) {
case 'f':
fontname = optarg;
break;
case 'o':
filename = optarg;
break;
case 'c':
ccolor = atol(optarg);
break;
case 'b':
bcolor = atol(optarg);
break;
case 'g':
gcolor = atol(optarg);
break;
case 'r':
{
char *str;
start_char = strtol(optarg, &str, 0);
end_char = strtol(str + 1, NULL, 0);
break;
}
case 'h':
usage(argv[0]);
exit(EXIT_SUCCESS);
default:
fprintf(stderr, "%s: unrecognized option -- '%c'\n", argv[0],
optopt);
fprintf(stderr, "%s: try '%s -h' for more information\n",
argv[0], argv[0]);
exit(EXIT_FAILURE);
}
}
/* open display */
display = XOpenDisplay(0);
if (display == 0) {
fprintf(stderr, "%s: XOpenDisplay failed\n", argv[0]);
exit(EXIT_FAILURE);
}
/* default screen number and window */
screen_number = XDefaultScreen(display);
default_depth = XDefaultDepth(display, screen_number);
window = XDefaultRootWindow(display);
/* load font */
font = XLoadFont(display, fontname);
/* create gcs */
{
unsigned long val_mask;
XGCValues val_bits;
val_mask = GCForeground | GCBackground | GCFont | GCFunction;
val_bits.function = GXcopy;
val_bits.foreground = white = WhitePixel(display, screen_number);
val_bits.background = black = BlackPixel(display, screen_number);
val_bits.font = font;
gc = XCreateGC(display, window, val_mask, &val_bits);
val_mask = GCForeground;
val_bits.foreground = black;
gc2 = XCreateGC(display, window, val_mask, &val_bits);
}
/* query font ascent and descent */
{
XFontStruct *xfs;
int min, max;
xfs = XQueryFont(display, font);
max_ascent = xfs->ascent;
max_descent = xfs->descent;
if (xfs->min_byte1 == 0 && xfs->max_byte1 == 0) {
min = xfs->min_char_or_byte2;
max = xfs->max_char_or_byte2;
}
else {
min = (xfs->min_byte1 << 8) + xfs->min_char_or_byte2;
max = (xfs->max_byte1 << 8) + xfs->max_char_or_byte2;
}
if (start_char < min || end_char > max)
fprintf(stderr,
"You specified characters %04x-%04x, but this font "
"only has the range %04x-%04x\n", start_char, end_char,
min, max);
XFreeFontInfo(NULL, xfs, 0);
}
/* calculate bitmap width and maximum ascent and descent of characters
* (can exceed the font ascent/descent queried above!) */
max_width = 0;
lines = 1 + (end_char - start_char) / 16;
for (cy = 0; cy < lines; cy++) {
for (cx = 0; cx < 16 && start_char + cy * 16 + cx <= end_char; cx++) {
int dir, ascent, descent;
int width;
XChar2b string[2] = { {0, 0}, {0, 0} };
/* query character size */
string[0].byte1 = (start_char + cy * 16 + cx) >> 8;
string[0].byte2 = (start_char + cy * 16 + cx) & 255;
XQueryTextExtents16(display, font, string, 1, &dir, &ascent,
&descent, &overall);
width = overall.width;
if (width < 1)
width = 1;
if (width > max_width)
max_width = width;
if (max_ascent < overall.ascent)
max_ascent = overall.ascent;
if (max_descent < overall.descent)
max_descent = overall.descent;
}
}
max_height = max_ascent + max_descent;
bitmap_width = (max_width + 1) * 16 + 1;
bitmap_height = (max_height + 1) * lines + 1;
/* create bitmap */
bitmap = create_bitmap(bitmap_width, bitmap_height);
if (bitmap == 0) {
fprintf(stderr, "%s: can not create bitmap\n", argv[0]);
exit(EXIT_FAILURE);
}
/* fill with filler color */
clear_to_color(bitmap, 255);
/* process all characters */
sy = 1;
for (cy = 0; cy < lines; cy++) {
sx = 1;
for (cx = 0; cx < 16 && start_char + cy * 16 + cx <= end_char; cx++) {
int dir, ascent, descent;
XChar2b string[2] = { {0, 0}, {0, 0} };
/* query character size */
string[0].byte1 = (start_char + cy * 16 + cx) >> 8;
string[0].byte2 = (start_char + cy * 16 + cx) & 255;
XQueryTextExtents16(display, font, string, 1, &dir, &ascent,
&descent, &overall);
if (overall.width < 1)
overall.width = 1;
/* create pixmap and draw character there */
pixmap =
XCreatePixmap(display, window, overall.width, max_height,
default_depth);
/* some fonts draw outside their ascent/descent, so we need to clear
* the pixmap before drawing the glyph */
XFillRectangle(display, pixmap, gc2, 0, 0, overall.width,
max_height);
XDrawImageString16(display, pixmap, gc, 0, max_ascent, string, 1);
/* create image with pixmap contents */
image =
XGetImage(display, pixmap, 0, 0, overall.width, max_height,
AllPlanes, ZPixmap);
if (image == 0) {
fprintf(stderr, "%s: can not get image\n", argv[0]);
exit(EXIT_FAILURE);
}
/* copy image to bitmap */
for (y = 0; y < max_height; y++)
for (x = 0; x < overall.width; x++) {
if (XGetPixel(image, x, y) == white)
putpixel(bitmap, sx + x, sy + y, 1);
else
putpixel(bitmap, sx + x, sy + y, 0);
}
XDestroyImage(image);
XFreePixmap(display, pixmap);
sx += max_width + 1;
}
sy += max_height + 1;
}
/* initialize palette */
for (i = 0; i < 256; i++)
palette[i].r = palette[i].g = palette[i].b = 0;
#define CLAMP_COL(v) (((v / 4) > 63) ? 63 : (v / 4))
palette[0].r = CLAMP_COL(bcolor / 1000000);
palette[0].g = CLAMP_COL((bcolor % 1000000) / 1000);
palette[0].b = CLAMP_COL(bcolor % 1000);
palette[1].r = CLAMP_COL(ccolor / 1000000);
palette[1].g = CLAMP_COL((ccolor % 1000000) / 1000);
palette[1].b = CLAMP_COL(ccolor % 1000);
palette[255].r = CLAMP_COL(gcolor / 1000000);
palette[255].g = CLAMP_COL((gcolor % 1000000) / 1000);
palette[255].b = CLAMP_COL(gcolor % 1000);
#undef CLAMP_COL
save_pcx(filename, bitmap, palette);
/* clean up */
destroy_bitmap(bitmap);
XFreeGC(display, gc);
XFreeGC(display, gc2);
XUnloadFont(display, font);
XCloseDisplay(display);
exit(EXIT_SUCCESS);
}
