Fix wide glyphs - diff file.
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783f503e61
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204
_suckless/st/patches/10-fix-wide-glyphs.diff
Normal file
204
_suckless/st/patches/10-fix-wide-glyphs.diff
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@ -0,0 +1,204 @@
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diff --git a/st.h b/st.h
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index a25605c..96b285c 100644
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--- a/st.h
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+++ b/st.h
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@@ -36,6 +36,12 @@ enum glyph_attribute {
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ATTR_BOLD_FAINT = ATTR_BOLD | ATTR_FAINT,
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};
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+enum drawing_mode {
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+ DRAW_NONE = 0,
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+ DRAW_BG = 1 << 0,
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+ DRAW_FG = 1 << 1,
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+};
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+
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enum selection_mode {
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SEL_IDLE = 0,
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SEL_EMPTY = 1,
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diff --git a/x.c b/x.c
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index 12008ef..b668c83 100644
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--- a/x.c
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+++ b/x.c
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@@ -142,7 +142,7 @@ typedef struct {
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static inline ushort sixd_to_16bit(int);
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static int xmakeglyphfontspecs(XftGlyphFontSpec *, const Glyph *, int, int, int);
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-static void xdrawglyphfontspecs(const XftGlyphFontSpec *, Glyph, int, int, int);
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+static void xdrawglyphfontspecs(const XftGlyphFontSpec *, Glyph, int, int, int, int);
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static void xdrawglyph(Glyph, int, int);
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static void xclear(int, int, int, int);
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static int xgeommasktogravity(int);
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@@ -1457,14 +1457,13 @@ xmakeglyphfontspecs(XftGlyphFontSpec *specs, const Glyph *glyphs, int len, int x
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}
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void
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-xdrawglyphfontspecs(const XftGlyphFontSpec *specs, Glyph base, int len, int x, int y)
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+xdrawglyphfontspecs(const XftGlyphFontSpec *specs, Glyph base, int len, int x, int y, int dmode)
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{
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int charlen = len * ((base.mode & ATTR_WIDE) ? 2 : 1);
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int winx = borderpx + x * win.cw, winy = borderpx + y * win.ch,
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width = charlen * win.cw;
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Color *fg, *bg, *temp, revfg, revbg, truefg, truebg;
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XRenderColor colfg, colbg;
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- XRectangle r;
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/* Fallback on color display for attributes not supported by the font */
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if (base.mode & ATTR_ITALIC && base.mode & ATTR_BOLD) {
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@@ -1548,47 +1547,47 @@ xdrawglyphfontspecs(const XftGlyphFontSpec *specs, Glyph base, int len, int x, i
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if (base.mode & ATTR_INVISIBLE)
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fg = bg;
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- /* Intelligent cleaning up of the borders. */
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- if (x == 0) {
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- xclear(0, (y == 0)? 0 : winy, borderpx,
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- winy + win.ch +
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- ((winy + win.ch >= borderpx + win.th)? win.h : 0));
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- }
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- if (winx + width >= borderpx + win.tw) {
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- xclear(winx + width, (y == 0)? 0 : winy, win.w,
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- ((winy + win.ch >= borderpx + win.th)? win.h : (winy + win.ch)));
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- }
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- if (y == 0)
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- xclear(winx, 0, winx + width, borderpx);
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- if (winy + win.ch >= borderpx + win.th)
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- xclear(winx, winy + win.ch, winx + width, win.h);
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-
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- /* Clean up the region we want to draw to. */
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- XftDrawRect(xw.draw, bg, winx, winy, width, win.ch);
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-
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- /* Set the clip region because Xft is sometimes dirty. */
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- r.x = 0;
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- r.y = 0;
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- r.height = win.ch;
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- r.width = width;
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- XftDrawSetClipRectangles(xw.draw, winx, winy, &r, 1);
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-
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- /* Render the glyphs. */
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- XftDrawGlyphFontSpec(xw.draw, fg, specs, len);
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-
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- /* Render underline and strikethrough. */
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- if (base.mode & ATTR_UNDERLINE) {
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- XftDrawRect(xw.draw, fg, winx, winy + dc.font.ascent + 1,
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- width, 1);
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- }
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+ if (dmode & DRAW_BG) {
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+ /* Intelligent cleaning up of the borders. */
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+ if (x == 0) {
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+ xclear(0, (y == 0)? 0 : winy, borderpx,
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+ winy + win.ch +
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+ ((winy + win.ch >= borderpx + win.th)? win.h : 0));
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+ }
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+ if (winx + width >= borderpx + win.tw) {
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+ xclear(winx + width, (y == 0)? 0 : winy, win.w,
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+ ((winy + win.ch >= borderpx + win.th)? win.h : (winy + win.ch)));
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+ }
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+ if (y == 0)
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+ xclear(winx, 0, winx + width, borderpx);
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+ if (winy + win.ch >= borderpx + win.th)
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+ xclear(winx, winy + win.ch, winx + width, win.h);
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- if (base.mode & ATTR_STRUCK) {
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- XftDrawRect(xw.draw, fg, winx, winy + 2 * dc.font.ascent / 3,
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- width, 1);
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+ /* Fill the background */
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+ XftDrawRect(xw.draw, bg, winx, winy, width, win.ch);
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}
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- /* Reset clip to none. */
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- XftDrawSetClip(xw.draw, 0);
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+ if (dmode & DRAW_FG) {
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+/*
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+ if (base.mode & ATTR_BOXDRAW) {
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+ drawboxes(winx, winy, width / len, win.ch, fg, bg, specs, len);
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+ } else {
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+*/
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+ /* Render the glyphs. */
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+ XftDrawGlyphFontSpec(xw.draw, fg, specs, len);
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+// }
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+
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+ /* Render underline and strikethrough. */
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+ if (base.mode & ATTR_UNDERLINE) {
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+ XftDrawRect(xw.draw, fg, winx, winy + dc.font.ascent + 1,
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+ width, 1);
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+ }
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+
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+ if (base.mode & ATTR_STRUCK) {
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+ XftDrawRect(xw.draw, fg, winx, winy + 2 * dc.font.ascent / 3,
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+ width, 1);
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+ }
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+ }
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}
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void
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@@ -1598,7 +1597,7 @@ xdrawglyph(Glyph g, int x, int y)
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XftGlyphFontSpec spec;
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numspecs = xmakeglyphfontspecs(&spec, &g, 1, x, y);
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- xdrawglyphfontspecs(&spec, g, numspecs, x, y);
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+ xdrawglyphfontspecs(&spec, g, numspecs, x, y, DRAW_BG | DRAW_FG);
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}
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void
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@@ -1735,32 +1734,39 @@ xstartdraw(void)
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void
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xdrawline(Line line, int x1, int y1, int x2)
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{
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- int i, x, ox, numspecs;
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+ int i, x, ox, numspecs, numspecs_cached;
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Glyph base, new;
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- XftGlyphFontSpec *specs = xw.specbuf;
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-
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- numspecs = xmakeglyphfontspecs(specs, &line[x1], x2 - x1, x1, y1);
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- i = ox = 0;
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- for (x = x1; x < x2 && i < numspecs; x++) {
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- new = line[x];
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- if (new.mode == ATTR_WDUMMY)
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- continue;
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- if (selected(x, y1))
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- new.mode ^= ATTR_REVERSE;
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- if (i > 0 && ATTRCMP(base, new)) {
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- xdrawglyphfontspecs(specs, base, i, ox, y1);
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- specs += i;
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- numspecs -= i;
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- i = 0;
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- }
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- if (i == 0) {
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- ox = x;
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- base = new;
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+ XftGlyphFontSpec *specs;
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+
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+ numspecs_cached = xmakeglyphfontspecs(xw.specbuf, &line[x1], x2 - x1, x1, y1);
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+
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+ /* Draw line in 2 passes: background and foreground. This way wide glyphs
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+ won't get truncated (#223) */
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+ for (int dmode = DRAW_BG; dmode <= DRAW_FG; dmode <<= 1) {
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+ specs = xw.specbuf;
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+ numspecs = numspecs_cached;
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+ i = ox = 0;
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+ for (x = x1; x < x2 && i < numspecs; x++) {
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+ new = line[x];
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+ if (new.mode == ATTR_WDUMMY)
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+ continue;
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+ if (selected(x, y1))
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+ new.mode ^= ATTR_REVERSE;
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+ if (i > 0 && ATTRCMP(base, new)) {
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+ xdrawglyphfontspecs(specs, base, i, ox, y1, dmode);
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+ specs += i;
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+ numspecs -= i;
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+ i = 0;
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+ }
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+ if (i == 0) {
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+ ox = x;
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+ base = new;
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+ }
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+ i++;
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}
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- i++;
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+ if (i > 0)
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+ xdrawglyphfontspecs(specs, base, i, ox, y1, dmode);
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}
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- if (i > 0)
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- xdrawglyphfontspecs(specs, base, i, ox, y1);
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}
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void
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