void DrawCharacters(Page *page)
{
size_t start = page->start;
size_t i;
for (i = start; i < page->end; i++) {
short x = character_positions[i].x;
short y = character_positions[i].y;
if (IsPrint(text[i])) {
draw:
;
XChar2b font_code;
XFontStruct *font = SelectFont(text[i], &font_code);
GC gc = XCreateGC(disp, back_buffer, 0, NULL);
XCopyGC(disp, default_gc, GCForeground | GCBackground, gc);
XSetFont(disp, gc, font->fid);
XDrawString16(disp, back_buffer, gc,
x, y + (font->ascent - default_font->ascent), &font_code, 1);
XFreeGC(disp, gc);
} else {
if (EqAscii2b(text[i], '\n')) {
// DOWNWARDS ARROW WITH TIP LEFTWARDS
XChar2b symbol = { .byte1 = 0x21, .byte2 = 0xb2 };
XDrawString16(disp, back_buffer, control_gc,
x, y,
&symbol, 1);
} else if (EqAscii2b(text[i], '\t')) {
;
} else {
goto draw;
}
}
}
void Fl_Device::transformed_draw(const char *str, int n, float x, float y)
{
if (font_gc != fl_gc) {
font_gc = fl_gc;
XSetFont(fl_display, fl_gc, current_font->fid);
}
int X = int(floor(x+.5f));
int Y = int(floor(y+.5f));
#if HAVE_XUTF8
char glyph[2]; // byte1 and byte2 value of the UTF-8 char
XChar2b buf[128]; // drawing buffer
int pos = 0; // position in buffer
int ulen; // byte length of the UTF-8 char
unsigned int ucs; // Unicode value of the UTF-8 char
unsigned int no_spc; // Spacing char equivalent of a non-spacing char
while(n > 0) {
if(pos>120) {
XDrawString16(fl_display, fl_window, fl_gc, X, Y, buf, pos);
X += XTextWidth16(current_font, buf, pos);
pos = 0;
}
ulen = fl_fast_utf2ucs((unsigned char*)str, n, &ucs);
if (ulen < 1) ulen = 1;
no_spc = fl_nonspacing(ucs);
if(no_spc) ucs = no_spc;
if(fl_ucs2fontmap(glyph, ucs, fl_fontsize->encoding_num) < 0) {
// the char is not valid in this encoding
fl_ucs2fontmap(glyph, '?', fl_fontsize->encoding_num);
}
if(no_spc) {
XDrawString16(fl_display, fl_window, fl_gc, X, Y, buf, pos);
X += XTextWidth16(current_font, buf, pos);
pos = 0;
(*buf).byte1 = glyph[1];
(*buf).byte2 = glyph[0];
X -= XTextWidth16(current_font, buf, 1);
} else {
(*(buf + pos)).byte1 = glyph[1];
(*(buf + pos)).byte2 = glyph[0];
}
pos++;
str += ulen;
n-=ulen;
}
if(pos>0)
XDrawString16(fl_display, fl_window, fl_gc, X, Y, buf, pos);
#else
XDrawString(fl_display, fl_window, fl_gc, X, Y, str, n);
#endif
}
void MCOldFontlist::ctxt_drawtext(MCX11Context *ctxt, int2 x, int2 y, const char *s, uint2 l, MCFontStruct *of, Boolean image, bool p_unicode_override)
{
MCOldFontStruct *f;
f = static_cast<MCOldFontStruct *>(of);
bool useUnicode = (f->max_byte1 > 0 || f->unicode) || p_unicode_override;
if ( useUnicode )
{
uint2 x_l ;
XChar2b x_s[l / 2];
x_l = (l + 1) / 2;
for(int i = 0; i < x_l; ++i)
x_s[i] . byte1 = s[i * 2 + 1], x_s[i] . byte2 = s[i * 2];
if (image)
{
XDrawImageString16(ctxt -> m_display, ctxt -> m_layers -> surface, ctxt -> m_gc, x - ctxt -> m_layers -> origin . x , y - ctxt -> m_layers -> origin . y , (const XChar2b *)x_s,
x_l);
XDrawImageString16(ctxt -> m_display, ctxt -> m_mask, ctxt -> m_gc1, x - ctxt -> m_layers -> origin . x , y - ctxt -> m_layers -> origin . y , (const XChar2b *)x_s,
x_l);
}
else
{
XDrawString16(ctxt -> m_display, ctxt -> m_layers -> surface, ctxt -> m_gc, x - ctxt -> m_layers -> origin . x , y - ctxt -> m_layers -> origin . y , (const XChar2b *)x_s,
x_l);
XDrawString16(ctxt -> m_display, ctxt -> m_mask, ctxt -> m_gc1, x - ctxt -> m_layers -> origin . x , y - ctxt -> m_layers -> origin . y , (const XChar2b *)x_s,
x_l);
}
}
else
{
if (image)
{
XDrawImageString(ctxt -> m_display, ctxt -> m_layers -> surface, ctxt -> m_gc, x - ctxt -> m_layers -> origin . x , y - ctxt -> m_layers -> origin . y , s, l);
XDrawImageString(ctxt -> m_display, ctxt -> m_mask, ctxt -> m_gc1, x - ctxt -> m_layers -> origin . x , y - ctxt -> m_layers -> origin . y , s, l);
}
else
{
XDrawString(ctxt -> m_display, ctxt -> m_layers -> surface, ctxt -> m_gc, x - ctxt -> m_layers -> origin . x , y - ctxt -> m_layers -> origin . y , s, l);
XDrawString(ctxt -> m_display, ctxt -> m_mask, ctxt -> m_gc1, x - ctxt -> m_layers -> origin . x , y - ctxt -> m_layers -> origin . y , s, l);
}
}
ctxt -> update_mask ( 0,
( y - ctxt -> m_layers -> origin . y ) - f -> ascent,
ctxt -> m_layers -> clip . width,
f -> ascent + f -> descent ) ;
}
void
polytext16_test(void)
{
int num_strings = 50;
int i;
long totaltime;
char buf[80];
num_strings *= X.percent;
GC_change_font(unicode_font,FALSE);
XSync(X.dpy,0);
start_timer();
for (i=0;i<num_strings;++i) {
XDrawString16(X.dpy,X.win,X.gc,(i%2 ? i : num_strings - i),10*i,
string16,sizeof(string16)/sizeof(XChar2b));
}
XSync(X.dpy,0);
totaltime = end_timer();
GC_change_font(X.fontname,FALSE);
snprintf(buf,sizeof buf,"%d strings in %.2f seconds.",num_strings,
(double) totaltime/1000000.);
show_result(buf);
}
/** Render string of 16-bit \a chars (foreground only) in \a pDrawable
* on the back-end server associated with \a pDrawable's screen. If
* the offscreen optimization is enabled, only draw when \a pDrawable
* is at least partially visible. */
int dmxPolyText16(DrawablePtr pDrawable, GCPtr pGC,
int x, int y, int count, unsigned short *chars)
{
DMXScreenInfo *dmxScreen = &dmxScreens[pDrawable->pScreen->myNum];
dmxGCPrivPtr pGCPriv = DMX_GET_GC_PRIV(pGC);
unsigned long n, i;
int w;
CharInfoPtr charinfo[255];
Drawable draw;
GetGlyphs(pGC->font, (unsigned long)count, (unsigned char *)chars,
(FONTLASTROW(pGC->font) == 0) ? Linear16Bit : TwoD16Bit,
&n, charinfo);
/* Calculate text width */
w = 0;
for (i = 0; i < n; i++) w += charinfo[i]->metrics.characterWidth;
if (n != 0 && !DMX_GCOPS_OFFSCREEN(pDrawable)) {
DMX_GCOPS_SET_DRAWABLE(pDrawable, draw);
XDrawString16(dmxScreen->beDisplay, draw, pGCPriv->gc,
x, y, (XChar2b *)chars, count);
dmxSync(dmxScreen, FALSE);
}
return x+w;
}
void
XftDrawStringUtf8 (XftDraw *draw,
XftColor *color,
XftFont *font,
int x,
int y,
XftChar8 *string,
int len)
{
if (font->core)
{
XChar2b *xc;
XChar2b xcloc[XFT_CORE_N16LOCAL];
int n;
XftDrawCorePrepare (draw, color, font);
xc = XftCoreConvertUtf8 (string, len, xcloc, &n);
if (xc)
{
XDrawString16 (draw->dpy, draw->drawable, draw->core.draw_gc, x, y,
xc, n);
}
if (xc != xcloc)
free (xc);
}
#ifdef FREETYPE2
else if (XftDrawRenderPrepare (draw, color, font, XFT_DRAW_SRC_TEXT))
{
XftRenderStringUtf8 (draw->dpy,
draw->render.src[XFT_DRAW_SRC_TEXT].pict,
font->u.ft.font,
draw->render.pict, 0, 0, x, y, string, len);
}
#endif
}
/*
* Generate OpenGL-compatible bitmap.
*/
static void
fill_bitmap(Display * dpy, Window win, GC gc,
unsigned int width, unsigned int height,
int x0, int y0, unsigned int c, GLubyte * bitmap)
{
XImage *image;
unsigned int x, y;
Pixmap pixmap;
XChar2b char2b;
pixmap = XCreatePixmap(dpy, win, 8 * width, height, 1);
XSetForeground(dpy, gc, 0);
XFillRectangle(dpy, pixmap, gc, 0, 0, 8 * width, height);
XSetForeground(dpy, gc, 1);
char2b.byte1 = (c >> 8) & 0xff;
char2b.byte2 = (c & 0xff);
XDrawString16(dpy, pixmap, gc, x0, y0, &char2b, 1);
image = XGetImage(dpy, pixmap, 0, 0, 8 * width, height, 1, XYPixmap);
if (image) {
/* Fill the bitmap (X11 and OpenGL are upside down wrt each other). */
for (y = 0; y < height; y++)
for (x = 0; x < 8 * width; x++)
if (XGetPixel(image, x, y))
bitmap[width * (height - y - 1) + x / 8] |=
(1 << (7 - (x % 8)));
XDestroyImage(image);
}
XFreePixmap(dpy, pixmap);
}
void debrush_do_draw_string_default_bmf(
DEBrush *brush,
int x, int y, const char *str,
int len, bool needfill,
DEColourGroup *colours)
{
GC gc=brush->d->normal_gc;
if(brush->d->font==NULL)
return;
XSetForeground(ioncore_g.dpy, gc, PIXEL(colours->fg));
if(!needfill){
if(brush->d->font->fontset!=NULL){
#ifdef CF_DE_USE_XUTF8
if(ioncore_g.enc_utf8)
Xutf8DrawString(ioncore_g.dpy, brush->win,
brush->d->font->fontset,
gc, x, y, str, len);
else
#endif
XmbDrawString(ioncore_g.dpy, brush->win,
brush->d->font->fontset,
gc, x, y, str, len);
}else if(brush->d->font->fontstruct!=NULL){
if(ioncore_g.enc_utf8){
XChar2b *str16; int len16=0;
toucs(str, len, &str16, &len16);
XDrawString16(ioncore_g.dpy, brush->win, gc, x, y, str16, len16);
free(str16);
}else{
XDrawString(ioncore_g.dpy, brush->win, gc, x, y, str, len);
}
}
}else{
XSetBackground(ioncore_g.dpy, gc, PIXEL(colours->bg));
if(brush->d->font->fontset!=NULL){
#ifdef CF_DE_USE_XUTF8
if(ioncore_g.enc_utf8)
Xutf8DrawImageString(ioncore_g.dpy, brush->win,
brush->d->font->fontset,
gc, x, y, str, len);
else
#endif
XmbDrawImageString(ioncore_g.dpy, brush->win,
brush->d->font->fontset,
gc, x, y, str, len);
}else if(brush->d->font->fontstruct!=NULL){
if(ioncore_g.enc_utf8){
XChar2b *str16; int len16=0;
toucs(str, len, &str16, &len16);
XDrawImageString16(ioncore_g.dpy, brush->win, gc, x, y, str16, len16);
free(str16);
}else{
XDrawImageString(ioncore_g.dpy, brush->win, gc, x, y, str, len);
}
}
}
}
int
main(int argc, char *argv[])
{
Display *display;
int screen;
GC gc;
Window window;
XWMHints hints;
Atom protocols;
XEvent event;
unsigned long mask;
Font xfont1, xfont2;
display = XOpenDisplay("");
screen = DefaultScreen(display);
gc = DefaultGC(display, screen);
/*
* Font names are hard-coded.
*/
xfont1 = XLoadFont(display, "a14");
xfont2 = XLoadFont(display, "k14");
window = XCreateSimpleWindow(display, RootWindow(display, screen),
0, 0, W_WIDTH, W_HEIGHT, 2,
BlackPixel(display, screen), WhitePixel(display, screen));
XStoreName(display, window, "XFontStruct demo");
hints.flags = InputHint;
hints.input = True;
XSetWMHints(display, window, &hints);
protocols = XInternAtom(display, "WM_DELETE_WINDOW", True);
XSetWMProtocols(display, window, &protocols, 1);
mask = ExposureMask;
XSelectInput(display, window, mask);
XMapWindow(display, window);
for (;;) {
XNextEvent(display, &event);
if (XFilterEvent(&event, window) == True)
continue;
switch (event.type) {
case Expose: {
XSetFont(display, gc, xfont1);
XDrawString(display, window, gc, 10, 50, "abcdef", 6);
XSetFont(display, gc, xfont2);
/* JIS */
XDrawString16(display, window, gc, 10, 80,
(XChar2b *) "\x24\x22\x24\x24", 4);
break;
}
default: {
break;
}
}
}
}
static void X11DRV_DrawString_normal( fontObject* pfo, Display* pdisp,
Drawable d, GC gc, int x, int y,
XChar2b* pstr, int count )
{
wine_tsx11_lock();
XDrawString16( pdisp, d, gc, x, y, pstr, count );
wine_tsx11_unlock();
}
static void
_XawLabelDraw16(Display *dpy, Drawable d, GC gc, int x, int y,
char *str, int n)
{
int i;
XChar2b *ptr;
if (n > buf2blen) {
buf2b = (XChar2b *)XtRealloc((char *)buf2b, n * sizeof(XChar2b));
buf2blen = n;
}
for (ptr = buf2b, i = n; --i >= 0; ptr++) {
ptr->byte1 = *str++;
ptr->byte2 = *str++;
}
XDrawString16(dpy, d, gc, x, y, buf2b, n);
}
/* gdk_x11_draw_text
*
* Modified by Li-Da Lho to draw 16 bits and Multibyte strings
*
* Interface changed: add "GdkFont *font" to specify font or fontset explicitely
*/
static void
gdk_x11_draw_text (GdkDrawable *drawable,
GdkFont *font,
GdkGC *gc,
gint x,
gint y,
const gchar *text,
gint text_length)
{
GdkDrawableImplX11 *impl;
Display *xdisplay;
impl = GDK_DRAWABLE_IMPL_X11 (drawable);
xdisplay = GDK_SCREEN_XDISPLAY (impl->screen);
if (font->type == GDK_FONT_FONT)
{
XFontStruct *xfont = (XFontStruct *) GDK_FONT_XFONT (font);
XSetFont(xdisplay, GDK_GC_GET_XGC (gc), xfont->fid);
if ((xfont->min_byte1 == 0) && (xfont->max_byte1 == 0))
{
XDrawString (xdisplay, impl->xid,
GDK_GC_GET_XGC (gc), x, y, text, text_length);
}
else
{
XDrawString16 (xdisplay, impl->xid,
GDK_GC_GET_XGC (gc), x, y, (XChar2b *) text, text_length / 2);
}
}
else if (font->type == GDK_FONT_FONTSET)
{
XFontSet fontset = (XFontSet) GDK_FONT_XFONT (font);
XmbDrawString (xdisplay, impl->xid,
fontset, GDK_GC_GET_XGC (gc), x, y, text, text_length);
}
else
g_error("undefined font type\n");
}
/*ARGSUSED*/
static void
XawLabelRedisplay(Widget gw, XEvent *event, Region region)
{
LabelWidget w = (LabelWidget)gw;
GC gc;
if (*Superclass->core_class.expose != NULL)
(*Superclass->core_class.expose)(gw, event, region);
gc = XtIsSensitive(gw) ? w->label.normal_GC : w->label.gray_GC;
#ifdef notdef
if (region != NULL)
XSetRegion(XtDisplay(gw), gc, region);
#endif /*notdef*/
if (w->label.pixmap == None) {
int len = w->label.label_len;
char *label = w->label.label;
Position y = w->label.label_y + w->label.font->max_bounds.ascent;
Position ksy = w->label.label_y;
/* display left bitmap */
if (w->label.left_bitmap && w->label.lbm_width != 0)
XCopyPlane (XtDisplay(gw), w->label.left_bitmap, XtWindow(gw), gc,
0, 0, w->label.lbm_width, w->label.lbm_height,
w->label.internal_width,
w->label.internal_height + w->label.lbm_y, 1L);
if (w->simple.international == True) {
XFontSetExtents *ext = XExtentsOfFontSet(w->label.fontset);
ksy += XawAbs(ext->max_ink_extent.y);
if (len == MULTI_LINE_LABEL) {
char *nl;
while ((nl = index(label, '\n')) != NULL) {
XmbDrawString(XtDisplay(w), XtWindow(w), w->label.fontset,
gc, w->label.label_x, ksy, label,
(int)(nl - label));
ksy += ext->max_ink_extent.height;
label = nl + 1;
}
len = strlen(label);
}
if (len)
XmbDrawString(XtDisplay(w), XtWindow(w), w->label.fontset, gc,
w->label.label_x, ksy, label, len);
}
else {
if (len == MULTI_LINE_LABEL) {
char *nl;
while ((nl = index(label, '\n')) != NULL) {
if (w->label.encoding)
XDrawString16(XtDisplay(gw), XtWindow(gw), gc,
w->label.label_x, y,
(XChar2b *)label, (int)(nl - label) / 2);
else
XDrawString(XtDisplay(gw), XtWindow(gw), gc,
w->label.label_x, y, label, (int)(nl - label));
y += w->label.font->max_bounds.ascent +
w->label.font->max_bounds.descent;
label = nl + 1;
}
len = strlen(label);
}
if (len) {
if (w->label.encoding)
XDrawString16(XtDisplay(gw), XtWindow(gw), gc,
w->label.label_x, y, (XChar2b *)label, len / 2);
else
XDrawString(XtDisplay(gw), XtWindow(gw), gc,
w->label.label_x, y, label, len);
}
}
}
else if (w->label.label_len == 1)
XCopyPlane(XtDisplay(gw), w->label.pixmap, XtWindow(gw), gc,
0, 0, w->label.label_width, w->label.label_height,
w->label.label_x, w->label.label_y, 1L);
else
XCopyArea(XtDisplay(gw), w->label.pixmap, XtWindow(gw), gc,
0, 0, w->label.label_width, w->label.label_height,
w->label.label_x, w->label.label_y);
#ifdef notdef
if (region != NULL)
XSetClipMask(XtDisplay(gw), gc, (Pixmap)None);
#endif /* notdef */
}
void
my_gdk_draw_text(GdkDrawable *drawable,
GdkFont *font,
GdkGC *gc,
gint x,
gint y,
const gchar *text,
gint text_length)
{
#ifdef MOZ_WIDGET_GTK
GdkWindowPrivate *drawable_private;
GdkFontPrivate *font_private;
GdkGCPrivate *gc_private;
#endif /* MOZ_WIDGET_GTK */
g_return_if_fail (drawable != NULL);
g_return_if_fail (font != NULL);
g_return_if_fail (gc != NULL);
g_return_if_fail (text != NULL);
#ifdef MOZ_WIDGET_GTK
drawable_private = (GdkWindowPrivate*) drawable;
if (drawable_private->destroyed)
return;
gc_private = (GdkGCPrivate*) gc;
font_private = (GdkFontPrivate*) font;
#endif /* MOZ_WIDGET_GTK */
#ifdef MOZ_WIDGET_GTK2
if (GDK_IS_WINDOW(drawable) && GDK_WINDOW_OBJECT(drawable)->destroyed)
return;
#endif /* MOZ_WIDGET_GTK2 */
if (font->type == GDK_FONT_FONT)
{
#ifdef MOZ_WIDGET_GTK
XFontStruct *xfont = (XFontStruct *) font_private->xfont;
#endif /* MOZ_WIDGET_GTK */
#ifdef MOZ_WIDGET_GTK2
XFontStruct *xfont = (XFontStruct *) GDK_FONT_XFONT(font);
#endif /* MOZ_WIDGET_GTK2 */
// gdk does this... we don't need it..
// XSetFont(drawable_private->xdisplay, gc_private->xgc, xfont->fid);
// We clamp the sizes down to 32768 which is the maximum width of
// a window. Even if a font was 1 pixel high and started at the
// left, the maximum size of a draw request could only be 32k.
if ((xfont->min_byte1 == 0) && (xfont->max_byte1 == 0))
{
#ifdef MOZ_WIDGET_GTK
XDrawString (drawable_private->xdisplay, drawable_private->xwindow,
gc_private->xgc, x, y, text, MIN(text_length, 32768));
#endif /* MOZ_WIDGET_GTK */
#ifdef MOZ_WIDGET_GTK2
XDrawString (GDK_WINDOW_XDISPLAY(drawable), GDK_DRAWABLE_XID(drawable),
GDK_GC_XGC(gc), x, y, text, MIN(text_length, 32768));
#endif /* MOZ_WIDGET_GTK2 */
}
else
{
#ifdef MOZ_WIDGET_GTK
XDrawString16 (drawable_private->xdisplay, drawable_private->xwindow,
gc_private->xgc, x, y, (XChar2b *) text,
MIN((text_length / 2), 32768));
#endif /* MOZ_WIDGET_GTK */
#ifdef MOZ_WIDGET_GTK2
XDrawString16 (GDK_WINDOW_XDISPLAY(drawable), GDK_DRAWABLE_XID(drawable),
GDK_GC_XGC(gc), x, y, (XChar2b *) text,
MIN((text_length / 2), 32768));
#endif /* MOZ_WIDGET_GTK2 */
}
}
else if (font->type == GDK_FONT_FONTSET)
{
#ifdef MOZ_WIDGET_GTK
XFontSet fontset = (XFontSet) font_private->xfont;
XmbDrawString (drawable_private->xdisplay, drawable_private->xwindow,
fontset, gc_private->xgc, x, y, text, text_length);
#endif /* MOZ_WIDGET_GTK */
#ifdef MOZ_WIDGET_GTK2
XFontSet fontset = (XFontSet) GDK_FONT_XFONT(font);
XmbDrawString (GDK_WINDOW_XDISPLAY(drawable), GDK_DRAWABLE_XID(drawable),
fontset, GDK_GC_XGC(gc), x, y, text, text_length);
#endif /* MOZ_WIDGET_GTK2 */
}
else
g_error("undefined font type\n");
}
void
captureXFont(Display * dpy, Font font, char *xfont, char *name)
{
int first, last, count;
int cnt, len;
Pixmap offscreen;
Window drawable;
XFontStruct *fontinfo;
XImage *image;
GC xgc;
XGCValues values;
int width, height;
int i, j, k;
XCharStruct *charinfo;
XChar2b character;
GLubyte *bitmapData;
int x, y;
int spanLength;
int charWidth, charHeight, maxSpanLength, pixwidth;
int grabList[MAX_GLYPHS_PER_GRAB];
int glyphsPerGrab = MAX_GLYPHS_PER_GRAB;
int numToGrab;
int rows, pages, byte1, byte2, index;
int nullBitmap;
drawable = RootWindow(dpy, DefaultScreen(dpy));
fontinfo = XQueryFont(dpy, font);
pages = fontinfo->max_char_or_byte2 - fontinfo->min_char_or_byte2 + 1;
first = (fontinfo->min_byte1 << 8) + fontinfo->min_char_or_byte2;
last = (fontinfo->max_byte1 << 8) + fontinfo->max_char_or_byte2;
count = last - first + 1;
width = fontinfo->max_bounds.rbearing -
fontinfo->min_bounds.lbearing;
height = fontinfo->max_bounds.ascent +
fontinfo->max_bounds.descent;
/* 16-bit fonts have more than one row; indexing into
per_char is trickier. */
rows = fontinfo->max_byte1 - fontinfo->min_byte1 + 1;
maxSpanLength = (width + 7) / 8;
/* For portability reasons we don't use alloca for
bitmapData, but we could. */
bitmapData = malloc(height * maxSpanLength);
/* Be careful determining the width of the pixmap; the X
protocol allows pixmaps of width 2^16-1 (unsigned short
size) but drawing coordinates max out at 2^15-1 (signed
short size). If the width is too large, we need to limit
the glyphs per grab. */
if ((glyphsPerGrab * 8 * maxSpanLength) >= (1 << 15)) {
glyphsPerGrab = (1 << 15) / (8 * maxSpanLength);
}
pixwidth = glyphsPerGrab * 8 * maxSpanLength;
offscreen = XCreatePixmap(dpy, drawable, pixwidth, height, 1);
values.font = font;
values.background = 0;
values.foreground = 0;
xgc = XCreateGC(dpy, offscreen,
GCFont | GCBackground | GCForeground, &values);
XFillRectangle(dpy, offscreen, xgc, 0, 0,
8 * maxSpanLength * glyphsPerGrab, height);
XSetForeground(dpy, xgc, 1);
numToGrab = 0;
if (fontinfo->per_char == NULL) {
charinfo = &(fontinfo->min_bounds);
charWidth = charinfo->rbearing - charinfo->lbearing;
charHeight = charinfo->ascent + charinfo->descent;
spanLength = (charWidth + 7) / 8;
}
printf("\n/* GENERATED FILE -- DO NOT MODIFY */\n\n");
printf("#include \"glutbitmap.h\"\n\n");
for (i = first; count; i++, count--) {
int undefined;
if (rows == 1) {
undefined = (fontinfo->min_char_or_byte2 > i ||
fontinfo->max_char_or_byte2 < i);
} else {
byte2 = i & 0xff;
byte1 = i >> 8;
undefined = (fontinfo->min_char_or_byte2 > byte2 ||
fontinfo->max_char_or_byte2 < byte2 ||
fontinfo->min_byte1 > byte1 ||
fontinfo->max_byte1 < byte1);
}
if (undefined) {
goto PossiblyDoGrab;
}
if (fontinfo->per_char != NULL) {
if (rows == 1) {
index = i - fontinfo->min_char_or_byte2;
} else {
byte2 = i & 0xff;
byte1 = i >> 8;
index =
(byte1 - fontinfo->min_byte1) * pages +
(byte2 - fontinfo->min_char_or_byte2);
}
charinfo = &(fontinfo->per_char[index]);
charWidth = charinfo->rbearing - charinfo->lbearing;
charHeight = charinfo->ascent + charinfo->descent;
if (charWidth == 0 || charHeight == 0) {
if (charinfo->width != 0) {
/* Still must move raster pos even if empty character
*/
outputChar(i, 0, 0, 0, 0, charinfo->width, 0);
}
goto PossiblyDoGrab;
}
}
grabList[numToGrab] = i;
character.byte2 = i & 255;
character.byte1 = i >> 8;
/* XXX We could use XDrawImageString16 which would also
paint the backing rectangle but X server bugs in some
scalable font rasterizers makes it more effective to do
XFillRectangles to clear the pixmap and then
XDrawImage16 for the text. */
XDrawString16(dpy, offscreen, xgc,
-charinfo->lbearing + 8 * maxSpanLength * numToGrab,
charinfo->ascent, &character, 1);
numToGrab++;
PossiblyDoGrab:
if (numToGrab >= glyphsPerGrab || count == 1) {
image = XGetImage(dpy, offscreen,
0, 0, pixwidth, height, 1, XYPixmap);
for (j = numToGrab - 1; j >= 0; j--) {
if (fontinfo->per_char != NULL) {
byte2 = grabList[j] & 0xff;
byte1 = grabList[j] >> 8;
index =
(byte1 - fontinfo->min_byte1) * pages +
(byte2 - fontinfo->min_char_or_byte2);
charinfo = &(fontinfo->per_char[index]);
charWidth = charinfo->rbearing - charinfo->lbearing;
charHeight = charinfo->ascent + charinfo->descent;
spanLength = (charWidth + 7) / 8;
}
memset(bitmapData, 0, height * spanLength);
for (y = 0; y < charHeight; y++) {
for (x = 0; x < charWidth; x++) {
if (XGetPixel(image, j * maxSpanLength * 8 + x,
charHeight - 1 - y)) {
/* Little endian machines (such as DEC Alpha)
could benefit from reversing the bit order
here and changing the GL_UNPACK_LSB_FIRST
parameter in glutBitmapCharacter to GL_TRUE. */
bitmapData[y * spanLength + x / 8] |=
(1 << (7 - (x & 7)));
}
}
}
if (PRINTABLE(grabList[j])) {
printf("/* char: 0x%x '%c' */\n\n",
grabList[j], grabList[j]);
} else {
printf("/* char: 0x%x */\n\n", grabList[j]);
}
/* Determine if the bitmap is null. */
nullBitmap = 1;
len = (charinfo->ascent + charinfo->descent) *
((charinfo->rbearing - charinfo->lbearing + 7) / 8);
cnt = 0;
while (cnt < len) {
for (k = 0; k < 16 && cnt < len; k++, cnt++) {
if (bitmapData[cnt] != 0) {
nullBitmap = 0;
}
}
}
if (!nullBitmap) {
printf("static const GLubyte ch%ddata[] = {\n", grabList[j]);
len = (charinfo->ascent + charinfo->descent) *
((charinfo->rbearing - charinfo->lbearing + 7) / 8);
cnt = 0;
while (cnt < len) {
for (k = 0; k < 16 && cnt < len; k++, cnt++) {
printf("0x%x,", bitmapData[cnt]);
}
printf("\n");
}
printf("};\n\n");
} else {
charWidth = 0;
charHeight = 0;
}
outputChar(grabList[j], charWidth, charHeight,
-charinfo->lbearing, charinfo->descent,
charinfo->width, !nullBitmap);
}
XDestroyImage(image);
numToGrab = 0;
if (count > 0) {
XSetForeground(dpy, xgc, 0);
XFillRectangle(dpy, offscreen, xgc, 0, 0,
8 * maxSpanLength * glyphsPerGrab, height);
XSetForeground(dpy, xgc, 1);
}
}
// 次のページの開始位置、あるいは文書の終端 (== text_length) を返す。
size_t FillPage(size_t start, Page *page, bool draw)
{
XWindowAttributes attrs;
XGetWindowAttributes(disp, win, &attrs);
// ページのサイズ。
const int LEFT_MARGIN = 50;
const int RIGHT_MARGIN = attrs.width - LEFT_MARGIN;
const int TOP_MARGIN = 50;
const int BOTTOM_MARGIN = attrs.height - TOP_MARGIN;
const XChar2b sp = { 0x00, 0x21 };
const int EM = GetCharWidth(sp);
// 行の高さ。
const int LINE_HEIGHT = 22;
// 現在の文字の描画位置。
int x = LEFT_MARGIN, y = TOP_MARGIN + font->ascent;
size_t i;
for (i = start; i < text_length; i++) {
// カーソルの描画
if (draw && i == cursor_position) {
XFillRectangle(disp, win, cursor_gc,
x, y - font->ascent,
CURSOR_WIDTH, font->ascent + font->descent);
}
if (IsPrint(text[i])) {
// 印字可能文字の場合。
int width = GetCharWidth(text[i]);
// この文字を描画すると右マージンにかかるようなら改行する。
// ただし、行頭に居る場合は改行しない。
if ( x + width > RIGHT_MARGIN &&
!ForbiddenAtStart(text[i]) && // 行頭禁止文字ならばぶらさげる
x != LEFT_MARGIN ) {
y += LINE_HEIGHT;
x = LEFT_MARGIN;
// ページにも収まらない場合、この位置で終了する。
if (y + font->descent > BOTTOM_MARGIN) {
page->start = start;
page->end = i;
return i;
}
}
if (draw) XDrawString16(disp, win, gc,
x, y,
&text[i], 1);
x += width;
} else {
// ラインフィードで改行する。
if (EqAscii2b(text[i], '\n')) {
if (draw) {
// DOWNWARDS ARROW WITH TIP LEFTWARDS
XChar2b symbol = { .byte1 = 0x21, .byte2 = 0xb2 };
XDrawString16(disp, win, control_gc,
x, y,
&symbol, 1);
}
y += LINE_HEIGHT;
x = LEFT_MARGIN;
// ページにも収まらない場合、次の位置で終了する。
// ページ区切り位置での改行は持ち越さない。
if (y + font->descent > BOTTOM_MARGIN) {
page->start = start;
page->end = i + 1;
return i + 1;
}
} else if (EqAscii2b(text[i], '\t')) {
int tab = EM * 8;
x = LEFT_MARGIN + (((x - LEFT_MARGIN) / tab) + 1) * tab;
}
}
}
if (draw && i == cursor_position) {
XFillRectangle(disp, win, cursor_gc,
x, y - font->ascent,
CURSOR_WIDTH, font->ascent + font->descent);
}
if (draw) XDrawString(disp, win, control_gc,
x, y,
"[EOF]", 5);
// 全てのテキストを配置した。
page->start = start;
page->end = text_length;
return text_length;
}
/**
* Generate OpenGL-compatible bitmap by drawing an X character glyph
* to an off-screen pixmap, then getting the image and testing pixels.
* \param width bitmap width in pixels
* \param height bitmap height in pixels
*/
static void
fill_bitmap(Display *dpy, Pixmap pixmap, GC gc,
unsigned int bitmapWidth, unsigned int bitmapHeight,
unsigned int charWidth, unsigned int charHeight,
int xPos, int yPos, unsigned int c, GLubyte * bitmap,
int rotation)
{
const int bytesPerRow = (bitmapWidth + 7) / 8;
XImage *image;
XChar2b char2b;
/* clear pixmap to 0 */
XSetForeground(dpy, gc, 0);
XFillRectangle(dpy, pixmap, gc, 0, 0, charWidth, charHeight);
/* The glyph is drawn snug up against the left/top edges of the pixmap */
XSetForeground(dpy, gc, 1);
char2b.byte1 = (c >> 8) & 0xff;
char2b.byte2 = (c & 0xff);
XDrawString16(dpy, pixmap, gc, xPos, yPos, &char2b, 1);
/* initialize GL bitmap */
memset(bitmap, 0, bytesPerRow * bitmapHeight);
image = XGetImage(dpy, pixmap, 0, 0, charWidth, charHeight, 1, XYPixmap);
if (image) {
/* Set appropriate bits in the GL bitmap.
* Note: X11 and OpenGL are upside down wrt each other).
*/
unsigned int x, y;
if (rotation == 0) {
for (y = 0; y < charHeight; y++) {
for (x = 0; x < charWidth; x++) {
if (XGetPixel(image, x, y)) {
int y2 = bitmapHeight - y - 1;
bitmap[bytesPerRow * y2 + x / 8] |= (1 << (7 - (x % 8)));
}
}
}
}
else if (rotation == 90) {
for (y = 0; y < charHeight; y++) {
for (x = 0; x < charWidth; x++) {
if (XGetPixel(image, x, y)) {
int x2 = y;
int y2 = x;
bitmap[bytesPerRow * y2 + x2 / 8] |= (1 << (7 - (x2 % 8)));
}
}
}
}
else if (rotation == 180) {
for (y = 0; y < charHeight; y++) {
for (x = 0; x < charWidth; x++) {
if (XGetPixel(image, x, y)) {
int x2 = charWidth - x - 1;
bitmap[bytesPerRow * y + x2 / 8] |= (1 << (7 - (x2 % 8)));
}
}
}
}
else {
for (y = 0; y < charHeight; y++) {
for (x = 0; x < charWidth; x++) {
if (XGetPixel(image, x, y)) {
int x2 = charHeight - y - 1;
int y2 = charWidth - x - 1;
bitmap[bytesPerRow * y2 + x2 / 8] |= (1 << (7 - (x2 % 8)));
}
}
}
}
XDestroyImage(image);
}
}
FontInfoPtr
SuckGlyphsFromServer(Display * dpy, Font font)
{
Pixmap offscreen;
XFontStruct *fontinfo;
XImage *image;
GC xgc;
XGCValues values;
int numchars;
int width, height, pixwidth;
int i, j;
XCharStruct *charinfo;
XChar2b character;
char *bitmapData;
int x, y;
int spanLength;
int charWidth, charHeight, maxSpanLength;
int grabList[MAX_GLYPHS_PER_GRAB];
int glyphsPerGrab = MAX_GLYPHS_PER_GRAB;
int numToGrab, thisglyph;
FontInfoPtr myfontinfo;
fontinfo = XQueryFont(dpy, font);
if (!fontinfo)
return NULL;
numchars = fontinfo->max_char_or_byte2 - fontinfo->min_char_or_byte2 + 1;
if (numchars < 1)
return NULL;
myfontinfo = (FontInfoPtr) malloc(sizeof(FontInfo) + (numchars - 1) * sizeof(PerCharInfo));
if (!myfontinfo)
return NULL;
myfontinfo->min_char = fontinfo->min_char_or_byte2;
myfontinfo->max_char = fontinfo->max_char_or_byte2;
myfontinfo->max_ascent = fontinfo->max_bounds.ascent;
myfontinfo->max_descent = fontinfo->max_bounds.descent;
myfontinfo->dlist_base = 0;
width = fontinfo->max_bounds.rbearing - fontinfo->min_bounds.lbearing;
height = fontinfo->max_bounds.ascent + fontinfo->max_bounds.descent;
maxSpanLength = (width + 7) / 8;
/*
* Be careful determining the width of the pixmap; the X protocol allows
* pixmaps of width 2^16-1 (unsigned short size) but drawing coordinates
* max out at 2^15-1 (signed short size). If the width is too large,
* we need to limit the glyphs per grab.
*/
if ((glyphsPerGrab * 8 * maxSpanLength) >= (1 << 15)) {
glyphsPerGrab = (1 << 15) / (8 * maxSpanLength);
}
pixwidth = glyphsPerGrab * 8 * maxSpanLength;
offscreen = XCreatePixmap(dpy, RootWindow(dpy, DefaultScreen(dpy)),
pixwidth, height, 1);
values.font = font;
values.background = 0;
values.foreground = 0;
xgc = XCreateGC(dpy, offscreen, GCFont | GCBackground | GCForeground, &values);
XFillRectangle(dpy, offscreen, xgc, 0, 0, 8 * maxSpanLength * glyphsPerGrab, height);
XSetForeground(dpy, xgc, 1);
numToGrab = 0;
if (fontinfo->per_char == NULL) {
charinfo = &(fontinfo->min_bounds);
charWidth = charinfo->rbearing - charinfo->lbearing;
charHeight = charinfo->ascent + charinfo->descent;
spanLength = (charWidth + 7) / 8;
}
for (i = 0; i < numchars; i++) {
if (fontinfo->per_char != NULL) {
charinfo = &(fontinfo->per_char[i]);
charWidth = charinfo->rbearing - charinfo->lbearing;
charHeight = charinfo->ascent + charinfo->descent;
if (charWidth == 0 || charHeight == 0) {
/* Still must move raster pos even if empty character */
myfontinfo->glyph[i].width = 0;
myfontinfo->glyph[i].height = 0;
myfontinfo->glyph[i].xoffset = 0;
myfontinfo->glyph[i].yoffset = 0;
myfontinfo->glyph[i].advance = charinfo->width;
myfontinfo->glyph[i].bitmap = NULL;
goto PossiblyDoGrab;
}
}
grabList[numToGrab] = i;
/* XXX is this right for large fonts? */
character.byte2 = (i + fontinfo->min_char_or_byte2) & 255;
character.byte1 = (i + fontinfo->min_char_or_byte2) >> 8;
/*
* XXX we could use XDrawImageString16 which would also paint the
* backing rectangle but X server bugs in some scalable font
* rasterizers makes it more effective to do XFillRectangles to clear
* the pixmap and XDrawImage16 for the text.
*/
XDrawString16(dpy, offscreen, xgc,
-charinfo->lbearing + 8 * maxSpanLength * numToGrab,
charinfo->ascent, &character, 1);
numToGrab++;
PossiblyDoGrab:
if (numToGrab >= glyphsPerGrab || i == numchars - 1) {
image = XGetImage(dpy, offscreen,
0, 0, pixwidth, height, 1, XYPixmap);
for (j = 0; j < numToGrab; j++) {
thisglyph = grabList[j];
if (fontinfo->per_char != NULL) {
charinfo = &(fontinfo->per_char[thisglyph]);
charWidth = charinfo->rbearing - charinfo->lbearing;
charHeight = charinfo->ascent + charinfo->descent;
spanLength = (charWidth + 7) / 8;
}
bitmapData = calloc(height * spanLength, sizeof(char));
if (!bitmapData)
goto FreeFontAndReturn;
DEBUG_GLYPH4("index %d, glyph %d (%d by %d)\n",
j, thisglyph + fontinfo->min_char_or_byte2, charWidth, charHeight);
for (y = 0; y < charHeight; y++) {
for (x = 0; x < charWidth; x++) {
/*
* XXX The algorithm used to suck across the font ensures
* that each glyph begins on a byte boundary. In theory
* this would make it convienent to copy the glyph into
* a byte oriented bitmap. We actually use the XGetPixel
* function to extract each pixel from the image which is
* not that efficient. We could either do tighter packing
* in the pixmap or more efficient extraction from the
* image. Oh well.
*/
if (XGetPixel(image, j * maxSpanLength * 8 + x, charHeight - 1 - y)) {
DEBUG_GLYPH("x");
bitmapData[y * spanLength + x / 8] |= (1 << (x & 7));
} else {
DEBUG_GLYPH(" ");
}
}
DEBUG_GLYPH("\n");
}
myfontinfo->glyph[thisglyph].width = charWidth;
myfontinfo->glyph[thisglyph].height = charHeight;
myfontinfo->glyph[thisglyph].xoffset = -charinfo->lbearing;
myfontinfo->glyph[thisglyph].yoffset = charinfo->descent;
myfontinfo->glyph[thisglyph].advance = charinfo->width;
myfontinfo->glyph[thisglyph].bitmap = bitmapData;
}
XDestroyImage(image);
numToGrab = 0;
/* do we need to clear the offscreen pixmap to get more? */
if (i < numchars - 1) {
XSetForeground(dpy, xgc, 0);
XFillRectangle(dpy, offscreen, xgc, 0, 0, 8 * maxSpanLength * glyphsPerGrab, height);
XSetForeground(dpy, xgc, 1);
}
}
}
XFreeGC(dpy, xgc);
XFreePixmap(dpy, offscreen);
return myfontinfo;
FreeFontAndReturn:
XDestroyImage(image);
XFreeGC(dpy, xgc);
XFreePixmap(dpy, offscreen);
for (j = i - 1; j >= 0; j--) {
if (myfontinfo->glyph[j].bitmap)
free(myfontinfo->glyph[j].bitmap);
}
free(myfontinfo);
return NULL;
}
void
XUtf8DrawString(
Display *display,
Drawable d,
XUtf8FontStruct *font_set,
GC gc,
int x,
int y,
const char *string,
int num_bytes)
{
int *encodings; /* encodings array */
XFontStruct **fonts; /* fonts array */
XChar2b buf[128]; /* drawing buffer */
int fnum; /* index of the current font in the fonts array*/
int i; /* current byte in the XChar2b buffer */
int first; /* first valid font index */
int last_fnum; /* font index of the previous char */
int nb_font; /* quantity of fonts in the font array */
char glyph[2]; /* byte1 and byte1 value of the UTF-8 char */
int *ranges; /* sub range of iso10646 */
nb_font = font_set->nb_font;
if (nb_font < 1) {
/* there is no font in the font_set :-( */
return;
}
ranges = font_set->ranges;
fonts = font_set->fonts;
encodings = font_set->encodings;
i = 0;
fnum = 0;
while(fnum < nb_font && !fonts[fnum]) fnum++;
if (fnum >= nb_font) {
/* there is no valid font for the X server */
return;
}
first = fnum;
last_fnum = fnum;
while (num_bytes > 0) {
int ulen; /* byte length of the UTF-8 char */
unsigned int ucs; /* Unicode value of the UTF-8 char */
unsigned int no_spc; /* Spacing char equivalent of a
non-spacing char */
if (i > 120) {
/*** draw the buffer **/
XSetFont(display, gc, fonts[fnum]->fid);
XDrawString16(display, d, gc, x, y, buf, i);
x += XTextWidth16(fonts[fnum], buf, i);
i = 0;
}
ulen = XFastConvertUtf8ToUcs((unsigned char*)string,
num_bytes, &ucs);
if (ulen < 1) ulen = 1;
no_spc = XUtf8IsNonSpacing(ucs);
if (no_spc) ucs = no_spc;
/*
* find the first encoding which can be used to
* draw the glyph
*/
fnum = first;
while (fnum < nb_font) {
if (fonts[fnum] &&
ucs2fontmap(glyph, ucs, encodings[fnum]) >= 0)
{
if (encodings[fnum] != 0 ||
(ucs >= ranges[fnum * 2] &&
ucs <= ranges[fnum * 2 + 1]))
{
break;
}
}
fnum++;
}
if (fnum == nb_font) {
/** the char is not valid in all encodings ->
* draw it using the first font :-( **/
fnum = first;
ucs2fontmap(glyph, '?', encodings[fnum]);
}
if (last_fnum != fnum || no_spc) {
XSetFont(display, gc, fonts[last_fnum]->fid);
XDrawString16(display, d, gc, x, y, buf, i);
x += XTextWidth16(fonts[last_fnum], buf, i);
i = 0;
(*buf).byte1 = glyph[0];
(*buf).byte2 = glyph[1];
if (no_spc) {
x -= XTextWidth16(fonts[fnum], buf, 1);
}
} else {
(*(buf + i)).byte1 = glyph[0];
(*(buf + i)).byte2 = glyph[1];
}
last_fnum = fnum;
i++;
string += ulen;
num_bytes -= ulen;
}
XSetFont(display, gc, fonts[fnum]->fid);
XDrawString16(display, d, gc, x, y, buf, i);
}