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(glyph_rect): New function.

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(XTmouse_position): Use it to raise the threshold for mouse
movement event generation.
This commit is contained in:
Gerd Moellmann 2001-03-02 20:51:32 +00:00
parent 75ed43a6a2
commit b52b65bdb3
2 changed files with 93 additions and 35 deletions
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6
src/ChangeLog
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@ -1,3 +1,9 @@
2001-03-02 Gerd Moellmann <gerd@gnu.org>
* xterm.c (glyph_rect): New function.
(XTmouse_position): Use it to raise the threshold for mouse
movement event generation.
2001-03-02 Eli Zaretskii <eliz@is.elta.co.il>
* msdos.c (Fmsdos_remember_default_colors): If default-frame-alist

122
src/xterm.c
View file

@ -477,7 +477,11 @@ static void x_draw_vertical_border P_ ((struct window *));
static void x_after_update_window_line P_ ((struct glyph_row *));
static INLINE void take_vertical_position_into_account P_ ((struct it *));
static void x_produce_stretch_glyph P_ ((struct it *));
static struct scroll_bar *x_window_to_scroll_bar P_ ((Window));
static void x_scroll_bar_report_motion P_ ((struct frame **, Lisp_Object *,
enum scroll_bar_part *,
Lisp_Object *, Lisp_Object *,
unsigned long *));
/* Flush display of frame F, or of all frames if F is null. */
@ -7385,23 +7389,71 @@ cancel_mouse_face (f)
dpyinfo->mouse_face_window = Qnil;
}
}
static struct scroll_bar *x_window_to_scroll_bar ();
static void x_scroll_bar_report_motion ();
static int glyph_rect P_ ((struct frame *f, int, int, XRectangle *));
/* Try to determine frame pixel position and size of the glyph under
frame pixel coordinates X/Y on frame F . Return the position and
size in *RECT. Value is non-zero if we could compute these
values. */
static int
glyph_rect (f, x, y, rect)
struct frame *f;
int x, y;
XRectangle *rect;
{
Lisp_Object window;
int part, found = 0;
window = window_from_coordinates (f, x, y, &part, 0);
if (!NILP (window))
{
struct window *w = XWINDOW (window);
struct glyph_row *r = MATRIX_FIRST_TEXT_ROW (w->current_matrix);
struct glyph_row *end = r + w->current_matrix->nrows - 1;
int area;
frame_to_window_pixel_xy (w, &x, &y);
for (; !found && r < end && r->enabled_p; ++r)
if (r->y >= y)
{
struct glyph *g = r->glyphs[TEXT_AREA];
struct glyph *end = g + r->used[TEXT_AREA];
int gx;
for (gx = r->x; !found && g < end; gx += g->pixel_width, ++g)
if (gx >= x)
{
rect->width = g->pixel_width;
rect->height = r->height;
rect->x = WINDOW_TO_FRAME_PIXEL_X (w, gx);
rect->y = WINDOW_TO_FRAME_PIXEL_Y (w, r->y);
found = 1;
}
}
}
return found;
}
/* Return the current position of the mouse.
*fp should be a frame which indicates which display to ask about.
*FP should be a frame which indicates which display to ask about.
If the mouse movement started in a scroll bar, set *fp, *bar_window,
and *part to the frame, window, and scroll bar part that the mouse
is over. Set *x and *y to the portion and whole of the mouse's
If the mouse movement started in a scroll bar, set *FP, *BAR_WINDOW,
and *PART to the frame, window, and scroll bar part that the mouse
is over. Set *X and *Y to the portion and whole of the mouse's
position on the scroll bar.
If the mouse movement started elsewhere, set *fp to the frame the
mouse is on, *bar_window to nil, and *x and *y to the character cell
If the mouse movement started elsewhere, set *FP to the frame the
mouse is on, *BAR_WINDOW to nil, and *X and *Y to the character cell
the mouse is over.
Set *time to the server time-stamp for the time at which the mouse
Set *TIME to the server time-stamp for the time at which the mouse
was at this position.
Don't store anything if we don't have a valid set of values to report.
@ -7573,32 +7625,32 @@ XTmouse_position (fp, insist, bar_window, part, x, y, time)
on it, i.e. into the same rectangles that matrices on
the frame are divided into. */
#if OLD_REDISPLAY_CODE
int ignore1, ignore2;
pixel_to_glyph_coords (f1, win_x, win_y, &ignore1, &ignore2,
&last_mouse_glyph,
FRAME_X_DISPLAY_INFO (f1)->grabbed
|| insist);
#else
{
int width = FRAME_SMALLEST_CHAR_WIDTH (f1);
int height = FRAME_SMALLEST_FONT_HEIGHT (f1);
int x = win_x;
int y = win_y;
int width, height, gx, gy;
XRectangle rect;
if (glyph_rect (f1, win_x, win_y, &rect))
last_mouse_glyph = rect;
else
{
width = FRAME_SMALLEST_CHAR_WIDTH (f1);
height = FRAME_SMALLEST_FONT_HEIGHT (f1);
gx = win_x;
gy = win_y;
/* Arrange for the division in PIXEL_TO_CHAR_COL etc. to
round down even for negative values. */
if (x < 0)
x -= width - 1;
if (y < 0)
y -= height - 1;
last_mouse_glyph.width = width;
last_mouse_glyph.height = height;
last_mouse_glyph.x = (x + width - 1) / width * width;
last_mouse_glyph.y = (y + height - 1) / height * height;
}
#endif
/* Arrange for the division in PIXEL_TO_CHAR_COL etc. to
round down even for negative values. */
if (gx < 0)
gx -= width - 1;
if (y < 0)
gy -= height - 1;
gx = (gx + width - 1) / width * width;
gy = (gy + height - 1) / height * height;
last_mouse_glyph.width = width;
last_mouse_glyph.height = height;
last_mouse_glyph.x = gx;
last_mouse_glyph.y = gy;
}
*bar_window = Qnil;
*part = 0;