Copyright (C) 1994, 1995 Board of Trustees, University of Illinois.
Copyright (C) 1995, 1996 Ben Wing.
Copyright (C) 1996 Chuck Thompson.
- Copyright (C) 1999 Andy Piper.
+ Copyright (C) 1999, 2002 Andy Piper.
This file is part of XEmacs.
else if (crb->type == RUNE_DGLYPH &&
(!EQ (crb->object.dglyph.glyph, drb->object.dglyph.glyph) ||
!EQ (crb->object.dglyph.extent, drb->object.dglyph.extent) ||
- crb->object.dglyph.xoffset != drb->object.dglyph.xoffset))
+ crb->object.dglyph.xoffset != drb->object.dglyph.xoffset ||
+ crb->object.dglyph.yoffset != drb->object.dglyph.yoffset ||
+ crb->object.dglyph.ascent != drb->object.dglyph.ascent ||
+ crb->object.dglyph.descent != drb->object.dglyph.descent))
return 0;
/* Only check dirtiness if we know something has changed. */
else if (crb->type == RUNE_DGLYPH &&
if (IMAGE_INSTANCE_SUBWINDOW_DISPLAYEDP (ii)
&&
IMAGE_INSTANCE_DISPLAY_X (ii)
- + IMAGE_INSTANCE_DISPLAY_WIDTH (ii) > x
+ + IMAGE_INSTANCE_DISPLAY_WIDTH (ii) > (unsigned) x
&&
- IMAGE_INSTANCE_DISPLAY_X (ii) < x + width
+ IMAGE_INSTANCE_DISPLAY_X (ii) < (unsigned) (x + width)
&&
IMAGE_INSTANCE_DISPLAY_Y (ii)
- + IMAGE_INSTANCE_DISPLAY_HEIGHT (ii) > y
+ + IMAGE_INSTANCE_DISPLAY_HEIGHT (ii) > (unsigned) y
&&
- IMAGE_INSTANCE_DISPLAY_Y (ii) < y + height
+ IMAGE_INSTANCE_DISPLAY_Y (ii) < (unsigned) (y + height)
&&
!EQ (XCAR (rest), ignored_window))
{
int edges = 0;
enum edge_style style;
int ypos = db->ypos;
+ int xpos = db->xpos;
int height = dga->height;
+ int width = dga->width;
- if (dga->xoffset >= 0)
+ /* The bevel_area routines always draw in from the specified
+ area so there is no need to adjust the displayed area to
+ make sure that the lines are visible. */
+ if (dga->xoffset >= 0)
edges |= EDGE_LEFT;
- if (dga->width - dga->xoffset == layout_width)
+ if (dga->width - dga->xoffset == layout_width)
edges |= EDGE_RIGHT;
- if (dga->yoffset >= 0)
+ if (dga->yoffset >= 0)
edges |= EDGE_TOP;
if (dga->height - dga->yoffset == layout_height)
edges |= EDGE_BOTTOM;
-
+
if (EQ (IMAGE_INSTANCE_LAYOUT_BORDER (p), Qetched_in))
style = EDGE_ETCHED_IN;
else if (EQ (IMAGE_INSTANCE_LAYOUT_BORDER (p), Qetched_out))
style = EDGE_BEVEL_OUT;
MAYBE_DEVMETH (d, bevel_area,
- (w, findex, db->xpos,
- ypos,
- dga->width, height, 2, edges, style));
+ (w, findex, xpos, ypos, width, height,
+ DEFAULT_WIDGET_SHADOW_WIDTH, edges, style));
}
}
dga->height = IMAGE_INSTANCE_PIXMAP_HEIGHT (p);
dga->width = IMAGE_INSTANCE_PIXMAP_WIDTH (p);
+#ifdef DEBUG_REDISPLAY
+ printf ("redisplay_output_pixmap(request) \
+[%dx%d@%d+%d] in [%dx%d@%d+%d]\n",
+ db->width, db->height, db->xpos, db->ypos,
+ dga->width, dga->height, dga->xoffset, dga->yoffset);
+#endif
+
/* This makes the glyph area fit into the display area. */
if (!redisplay_normalize_glyph_area (db, dga))
return;
+#ifdef DEBUG_REDISPLAY
+ printf ("redisplay_output_pixmap(normalized) \
+[%dx%d@%d+%d] in [%dx%d@%d+%d]\n",
+ db->width, db->height, db->xpos, db->ypos,
+ dga->width, dga->height, dga->xoffset, dga->yoffset);
+#endif
+
/* Clear the area the pixmap is going into. The pixmap itself will
always take care of the full width. We don't want to clear where
it is going to go in order to avoid flicker. So, all we have to
redisplay_normalize_glyph_area
redisplay_normalize_display_box
- Calculate the visible box for displaying src in dest.
+ Calculate the visible box for displaying glyphsrc in dest.
+
+ display_box and display_glyph_area are used to represent an area to
+ displayed and where to display it. Using these two structures all
+ combinations of clipping and position can be accommodated.
+
+ dest - display_box
+
+ xpos - absolute horizontal position of area.
+
+ ypos - absolute vertical position of area.
+
+ glyphsrc - display_glyph_area
+
+ xoffset - horizontal offset of the glyph, +ve means display
+ the glyph with the x position offset by xoffset, -ve means
+ display starting xoffset into the glyph.
+
+ yoffset - vertical offset of the glyph, +ve means display the
+ glyph with y position offset by yoffset, -ve means display
+ starting xoffset into the glyph.
+
****************************************************************************/
int
redisplay_normalize_glyph_area (struct display_box* dest,
return 0;
}
- /* Horizontal offsets. This works because xoffset can be -ve as well as +ve */
+ /* Horizontal offsets. This works because xoffset can be -ve as well
+ as +ve. When we enter this function the glyphsrc width and
+ height are set to the actual glyph width and height irrespective
+ of how much can be displayed. We are trying to clip both the
+ offset into the image and the rightmost bounding box. Its
+ possible for the glyph width to be much larger than the area we
+ are displaying into (e.g. a large glyph in a small frame). */
if (dest->xpos + glyphsrc->xoffset + glyphsrc->width > dest->xpos + dest->width)
{
+ /* glyphsrc offset is +ve we are trying to display offset from the
+ origin (the bounding box contains some space and then the
+ glyph). At most the width we want to display is dest->width -
+ glyphsrc->xoffset. */
if (glyphsrc->xoffset > 0)
glyphsrc->width = dest->width - glyphsrc->xoffset;
+ /* glyphsrc offset is -ve we are trying to display hard up
+ against the dest corner inset into the glyphsrc by
+ xoffset.*/
+ else if (glyphsrc->xoffset < 0)
+ {
+ glyphsrc->width += glyphsrc->xoffset;
+ glyphsrc->width = min (glyphsrc->width, dest->width);
+ }
else
glyphsrc->width = dest->width;
}
- if (glyphsrc->xoffset < 0)
+ else if (glyphsrc->xoffset < 0)
glyphsrc->width += glyphsrc->xoffset;
/* Vertical offsets. This works because yoffset can be -ve as well as +ve */
if (dest->ypos + glyphsrc->yoffset + glyphsrc->height > dest->ypos + dest->height)
{
- if (glyphsrc->yoffset > 0)
+ if ((glyphsrc->yoffset > 0) && (dest->height > glyphsrc->yoffset))
glyphsrc->height = dest->height - glyphsrc->yoffset;
+ else if (glyphsrc->yoffset < 0)
+ {
+ glyphsrc->height += glyphsrc->yoffset;
+ glyphsrc->height = min (glyphsrc->height, dest->height);
+ }
else
glyphsrc->height = dest->height;
}
- if (glyphsrc->yoffset < 0)
+ else if (glyphsrc->yoffset < 0)
glyphsrc->height += glyphsrc->yoffset;
return 1;
****************************************************************************/
int
redisplay_calculate_display_boxes (struct display_line *dl, int xpos,
- int xoffset, int start_pixpos, int width,
- struct display_box* dest,
+ int xoffset, int yoffset, int start_pixpos,
+ int width, struct display_box* dest,
struct display_glyph_area* src)
{
dest->xpos = xpos;
dest->height = DISPLAY_LINE_HEIGHT (dl);
src->xoffset = -xoffset;
- src->yoffset = -dl->top_clip;
src->width = 0;
src->height = 0;
+ src->yoffset = -dl->top_clip + yoffset;
+
if (start_pixpos >=0 && start_pixpos > xpos)
{
/* Oops, we're asking for a start outside of the displayable
projects / chise / xemacs-chise.git.1 / blobdiff