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comparison src/redisplay.c @ 1708:a19b0eb5dfc1

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[xemacs-hg @ 2003-09-22 04:21:42 by james] Add new pos-visible-in-window-p parameter for Emacs compatibility.
author james
date Mon, 22 Sep 2003 04:21:43 +0000
parents 4f58e6e65139
children a8d8f419b459
comparison
equal deleted inserted replaced
1707:fca75a427ae3 1708:a19b0eb5dfc1
8081 } 8081 }
8082 } 8082 }
8083 } 8083 }
8084 8084
8085 /* Return a boolean indicating if POINT would be visible in window W 8085 /* Return a boolean indicating if POINT would be visible in window W
8086 if display of the window was to begin at STARTP. */ 8086 if display of the window was to begin at STARTP. If PARTIALLY is
8087 8087 zero, then if POINT has fewer visible pixels than the window clip,
8088 0 is returned; otherwise, 1 is returned if POINT has any visible
8089 pixels. */
8088 int 8090 int
8089 point_would_be_visible (struct window *w, Charbpos startp, Charbpos point) 8091 point_would_be_visible (struct window *w, Charbpos startp, Charbpos point,
8092 int partially)
8090 { 8093 {
8091 struct buffer *b = XBUFFER (w->buffer); 8094 struct buffer *b = XBUFFER (w->buffer);
8092 int pixpos = -WINDOW_TEXT_TOP_CLIP(w); 8095 int pixpos = -WINDOW_TEXT_TOP_CLIP(w);
8093 int bottom = WINDOW_TEXT_HEIGHT (w); 8096 int bottom = WINDOW_TEXT_HEIGHT (w);
8094 int start_elt; 8097 int start_elt;
8143 8146
8144 height = Dynarr_atp (w->line_start_cache, start_elt)->height; 8147 height = Dynarr_atp (w->line_start_cache, start_elt)->height;
8145 8148
8146 if (pixpos + height > bottom) 8149 if (pixpos + height > bottom)
8147 { 8150 {
8148 if (bottom - pixpos < VERTICAL_CLIP (w, 0)) 8151 if (bottom - pixpos < (partially ? 0 : VERTICAL_CLIP (w, 0)))
8149 { 8152 {
8150 w->line_cache_validation_override--; 8153 w->line_cache_validation_override--;
8151 return 0; 8154 return 0;
8152 } 8155 }
8153 } 8156 }