#include "gutter.h"
Lisp_Object Qwindowp, Qwindow_live_p, Qwindow_configurationp;
-Lisp_Object Qscroll_up, Qscroll_down, Qdisplay_buffer;
+Lisp_Object Qdisplay_buffer;
#ifdef MEMORY_USAGE_STATS
Lisp_Object Qface_cache, Qglyph_cache, Qline_start_cache, Qother_redisplay;
/* Spacing between outer egde of divider border and window edge */
Lisp_Object Vvertical_divider_spacing;
+/* How much to scroll by per-line. */
+Lisp_Object Vwindow_pixel_scroll_increment;
+
/* Scroll if point lands on the bottom line and that line is partially
clipped. */
int scroll_on_clipped_lines;
int next_screen_context_lines;
/* List of freed window configurations with 1 - 10 windows. */
-Lisp_Object Vwindow_configuration_free_list[10];
+static Lisp_Object Vwindow_configuration_free_list[10];
#define SET_LAST_MODIFIED(w, cache_too) \
do { \
\f
#define MARK_DISP_VARIABLE(field) \
- markobj (window->field[CURRENT_DISP]); \
- markobj (window->field[DESIRED_DISP]); \
- markobj (window->field[CMOTION_DISP]);
+ mark_object (window->field[CURRENT_DISP]); \
+ mark_object (window->field[DESIRED_DISP]); \
+ mark_object (window->field[CMOTION_DISP]);
static Lisp_Object
-mark_window (Lisp_Object obj, void (*markobj) (Lisp_Object))
+mark_window (Lisp_Object obj)
{
struct window *window = XWINDOW (obj);
- markobj (window->frame);
- markobj (window->mini_p);
- markobj (window->next);
- markobj (window->prev);
- markobj (window->hchild);
- markobj (window->vchild);
- markobj (window->parent);
- markobj (window->buffer);
+ mark_object (window->frame);
+ mark_object (window->mini_p);
+ mark_object (window->next);
+ mark_object (window->prev);
+ mark_object (window->hchild);
+ mark_object (window->vchild);
+ mark_object (window->parent);
+ mark_object (window->buffer);
MARK_DISP_VARIABLE (start);
MARK_DISP_VARIABLE (pointm);
- markobj (window->sb_point); /* #### move to scrollbar.c? */
- markobj (window->use_time);
+ mark_object (window->sb_point); /* #### move to scrollbar.c? */
+ mark_object (window->use_time);
MARK_DISP_VARIABLE (last_modified);
MARK_DISP_VARIABLE (last_point);
MARK_DISP_VARIABLE (last_start);
MARK_DISP_VARIABLE (last_facechange);
- markobj (window->line_cache_last_updated);
- markobj (window->redisplay_end_trigger);
- markobj (window->subwindow_instance_cache);
+ mark_object (window->line_cache_last_updated);
+ mark_object (window->redisplay_end_trigger);
+ mark_object (window->subwindow_instance_cache);
- mark_face_cachels (window->face_cachels, markobj);
- mark_glyph_cachels (window->glyph_cachels, markobj);
+ mark_face_cachels (window->face_cachels);
+ mark_glyph_cachels (window->glyph_cachels);
-#define WINDOW_SLOT(slot, compare) ((void) (markobj (window->slot)))
+#define WINDOW_SLOT(slot, compare) mark_object (window->slot)
#include "winslots.h"
return Qnil;
int
window_truncation_on (struct window *w)
{
+ /* Minibuffer windows are never truncated.
+ ### is this the right way ? */
+ if (MINI_WINDOW_P (w))
+ return 0;
+
/* Horizontally scrolled windows are truncated. */
if (w->hscroll)
return 1;
return 0;
}
+DEFUN ("window-truncated-p", Fwindow_truncated_p, 0, 1, 0, /*
+Returns Non-Nil iff the window is truncated.
+*/
+ (window))
+{
+ struct window *w = decode_window (window);
+
+ return window_truncation_on (w) ? Qt : Qnil;
+}
+
+
static int
have_undivided_common_edge (struct window *w_right, void *closure)
{
}
}
+DEFUN ("last-nonminibuf-window", Flast_nonminibuf_window, 0, 1, 0, /*
+Return the last selected window that is not a minibuffer window.
+If the optional argument CON-DEV-OR-FRAME is specified and is a frame,
+return the last non-minibuffer window used by that frame. If
+CON-DEV-OR-FRAME is a device, then the selected frame on that device
+will be used. If CON-DEV-OR-FRAME is a console, the selected frame on
+that console's selected device will be used. Otherwise, the selected
+frame is used.
+*/
+ (con_dev_or_frame))
+{
+ if (NILP (con_dev_or_frame) && NILP (Fselected_device (Qnil)))
+ return Qnil; /* happens at startup */
+
+ {
+ struct frame *f = decode_frame_or_selected (con_dev_or_frame);
+ return FRAME_LAST_NONMINIBUF_WINDOW (f);
+ }
+}
+
DEFUN ("minibuffer-window", Fminibuffer_window, 0, 1, 0, /*
Return the window used now for minibuffers.
If the optional argument CON-DEV-OR-FRAME is specified and is a frame, return
\f
-/* Scroll contents of window WINDOW up N lines. */
+/* Scroll contents of window WINDOW up N lines. If N < (top line height /
+ average line height) then we just adjust the top clip. */
void
window_scroll (Lisp_Object window, Lisp_Object n, int direction,
Error_behavior errb)
int selected = EQ (window, Fselected_window (Qnil));
int value = 0;
Lisp_Object point, tem;
+ display_line_dynarr *dla;
+ int fheight, fwidth, modeline = 0;
+ struct display_line* dl;
if (selected)
point = make_int (BUF_PT (b));
window, Qnil);
Fset_marker (w->start[CURRENT_DISP], point, w->buffer);
w->start_at_line_beg = beginning_of_line_p (b, XINT (point));
+ WINDOW_TEXT_TOP_CLIP (w) = 0;
MARK_WINDOWS_CHANGED (w);
}
{
return;
}
- else if (value > 0)
- {
- int vtarget;
- Bufpos startp, old_start;
- old_start = marker_position (w->start[CURRENT_DISP]);
- startp = vmotion (w, old_start, value, &vtarget);
+ /* Determine parameters to test for partial line scrolling with. */
+ dla = window_display_lines (w, CURRENT_DISP);
+
+ if (INTP (Vwindow_pixel_scroll_increment))
+ fheight = XINT (Vwindow_pixel_scroll_increment);
+ else if (!NILP (Vwindow_pixel_scroll_increment));
+ default_face_height_and_width (window, &fheight, &fwidth);
+
+ if (Dynarr_length (dla) >= 1)
+ modeline = Dynarr_atp (dla, 0)->modeline;
- if (vtarget < value &&
- (w->window_end_pos[CURRENT_DISP] == -1
- || (BUF_Z (b) - w->window_end_pos[CURRENT_DISP] > BUF_ZV (b))))
+ dl = Dynarr_atp (dla, modeline);
+
+ if (value > 0)
+ {
+ /* Go for partial display line scrolling. This just means bumping
+ the clip by a reasonable amount and redisplaying, everything else
+ remains unchanged. */
+ if (!NILP (Vwindow_pixel_scroll_increment)
+ &&
+ Dynarr_length (dla) >= (1 + modeline)
+ &&
+ (dl->ascent - dl->top_clip) - fheight * value > 0)
{
- maybe_signal_error (Qend_of_buffer, Qnil, Qwindow, errb);
- return;
+ WINDOW_TEXT_TOP_CLIP (w) += value * fheight;
+ MARK_WINDOWS_CHANGED (w);
}
else
{
- set_marker_restricted (w->start[CURRENT_DISP], make_int (startp),
- w->buffer);
- w->force_start = 1;
- w->start_at_line_beg = beginning_of_line_p (b, startp);
- MARK_WINDOWS_CHANGED (w);
+ int vtarget;
+ Bufpos startp, old_start;
+
+ if (WINDOW_TEXT_TOP_CLIP (w))
+ {
+ WINDOW_TEXT_TOP_CLIP (w) = 0;
+ MARK_WINDOWS_CHANGED (w);
+ }
- if (!point_would_be_visible (w, startp, XINT (point)))
+ old_start = marker_position (w->start[CURRENT_DISP]);
+ startp = vmotion (w, old_start, value, &vtarget);
+
+ if (vtarget < value &&
+ (w->window_end_pos[CURRENT_DISP] == -1
+ || (BUF_Z (b) - w->window_end_pos[CURRENT_DISP] > BUF_ZV (b))))
{
- if (selected)
- BUF_SET_PT (b, startp);
- else
- set_marker_restricted (w->pointm[CURRENT_DISP],
- make_int (startp),
- w->buffer);
+ maybe_signal_error (Qend_of_buffer, Qnil, Qwindow, errb);
+ return;
+ }
+ else
+ {
+ set_marker_restricted (w->start[CURRENT_DISP], make_int (startp),
+ w->buffer);
+ w->force_start = 1;
+ w->start_at_line_beg = beginning_of_line_p (b, startp);
+ MARK_WINDOWS_CHANGED (w);
+
+ if (!point_would_be_visible (w, startp, XINT (point)))
+ {
+ if (selected)
+ BUF_SET_PT (b, startp);
+ else
+ set_marker_restricted (w->pointm[CURRENT_DISP],
+ make_int (startp),
+ w->buffer);
+ }
}
}
}
else if (value < 0)
{
- int vtarget;
- Bufpos startp, old_start;
-
- old_start = marker_position (w->start[CURRENT_DISP]);
- startp = vmotion (w, old_start, value, &vtarget);
-
- if (vtarget > value
- && marker_position (w->start[CURRENT_DISP]) == BUF_BEGV (b))
+ /* Go for partial display line scrolling. This just means bumping
+ the clip by a reasonable amount and redisplaying, everything else
+ remains unchanged. */
+ if (!NILP (Vwindow_pixel_scroll_increment)
+ &&
+ Dynarr_length (dla) >= (1 + modeline)
+ &&
+ (dl->ascent - dl->top_clip) - fheight * value <
+ (dl->ascent + dl->descent - dl->clip)
+ &&
+ WINDOW_TEXT_TOP_CLIP (w) + value * fheight > 0)
{
- maybe_signal_error (Qbeginning_of_buffer, Qnil, Qwindow, errb);
- return;
+ WINDOW_TEXT_TOP_CLIP (w) += value * fheight;
+ MARK_WINDOWS_CHANGED (w);
}
else
{
- set_marker_restricted (w->start[CURRENT_DISP], make_int (startp),
- w->buffer);
- w->force_start = 1;
- w->start_at_line_beg = beginning_of_line_p (b, startp);
- MARK_WINDOWS_CHANGED (w);
-
- if (!point_would_be_visible (w, startp, XINT (point)))
+ int vtarget;
+ Bufpos startp, old_start;
+
+ if (WINDOW_TEXT_TOP_CLIP (w))
{
- Bufpos new_point;
-
- if (MINI_WINDOW_P (w))
- new_point = startp;
- else
- new_point = start_of_last_line (w, startp);
-
- if (selected)
- BUF_SET_PT (b, new_point);
- else
- set_marker_restricted (w->pointm[CURRENT_DISP],
- make_int (new_point),
- w->buffer);
+ WINDOW_TEXT_TOP_CLIP (w) = 0;
+ MARK_WINDOWS_CHANGED (w);
+ }
+
+ old_start = marker_position (w->start[CURRENT_DISP]);
+ startp = vmotion (w, old_start, value, &vtarget);
+
+ if (vtarget > value
+ && marker_position (w->start[CURRENT_DISP]) == BUF_BEGV (b))
+ {
+ maybe_signal_error (Qbeginning_of_buffer, Qnil, Qwindow, errb);
+ return;
+ }
+ else
+ {
+ set_marker_restricted (w->start[CURRENT_DISP], make_int (startp),
+ w->buffer);
+ w->force_start = 1;
+ w->start_at_line_beg = beginning_of_line_p (b, startp);
+ MARK_WINDOWS_CHANGED (w);
+
+ if (!point_would_be_visible (w, startp, XINT (point)))
+ {
+ Bufpos new_point;
+
+ if (MINI_WINDOW_P (w))
+ new_point = startp;
+ else
+ new_point = start_of_last_line (w, startp);
+
+ if (selected)
+ BUF_SET_PT (b, new_point);
+ else
+ set_marker_restricted (w->pointm[CURRENT_DISP],
+ make_int (new_point),
+ w->buffer);
+ }
}
}
}
else /* value == 0 && direction == -1 */
{
+ if (WINDOW_TEXT_TOP_CLIP (w))
+ {
+ WINDOW_TEXT_TOP_CLIP (w) = 0;
+ MARK_WINDOWS_CHANGED (w);
+ }
if (marker_position (w->start[CURRENT_DISP]) == BUF_BEGV (b))
{
maybe_signal_error (Qbeginning_of_buffer, Qnil, Qwindow, errb);
}
}
}
-
}
\f
DEFUN ("scroll-up", Fscroll_up, 0, 1, "_P", /*
#define CHECK_WINDOW_CONFIGURATION(x) CHECK_RECORD (x, window_configuration)
static Lisp_Object
-mark_window_config (Lisp_Object obj, void (*markobj) (Lisp_Object))
+mark_window_config (Lisp_Object obj)
{
struct window_config *config = XWINDOW_CONFIGURATION (obj);
int i;
- markobj (config->current_window);
- markobj (config->current_buffer);
- markobj (config->minibuffer_scroll_window);
- markobj (config->root_window);
+ mark_object (config->current_window);
+ mark_object (config->current_buffer);
+ mark_object (config->minibuffer_scroll_window);
+ mark_object (config->root_window);
for (i = 0; i < config->saved_windows_count; i++)
{
struct saved_window *s = SAVED_WINDOW_N (config, i);
- markobj (s->window);
- markobj (s->buffer);
- markobj (s->start);
- markobj (s->pointm);
- markobj (s->sb_point);
- markobj (s->mark);
+ mark_object (s->window);
+ mark_object (s->buffer);
+ mark_object (s->start);
+ mark_object (s->pointm);
+ mark_object (s->sb_point);
+ mark_object (s->mark);
#if 0
/* #### This looked like this. I do not see why specifier cached
values should not be marked, as such specifiers as toolbars
might have GC-able instances. Freed configs are not marked,
aren't they? -- kkm */
- markobj (s->dedicated);
+ mark_object (s->dedicated);
#else
-#define WINDOW_SLOT(slot, compare) ((void) (markobj (s->slot)))
+#define WINDOW_SLOT(slot, compare) mark_object (s->slot)
#include "winslots.h"
#endif
}
SET_LAST_FACECHANGE (w);
w->config_mark = 0;
-#define WINDOW_SLOT(slot, compare) w->slot = p->slot;
+#define WINDOW_SLOT(slot, compare) w->slot = p->slot
#include "winslots.h"
/* Reinstall the saved buffer and pointers into it. */
p->hscroll = w->hscroll;
p->modeline_hscroll = w->modeline_hscroll;
-#define WINDOW_SLOT(slot, compare) p->slot = w->slot;
+#define WINDOW_SLOT(slot, compare) p->slot = w->slot
#include "winslots.h"
if (!NILP (w->buffer))
return unbind_to (speccount, val);
}
+DEFUN ("current-pixel-column", Fcurrent_pixel_column, 0, 2, 0, /*
+Return the horizontal pixel position of POS in window.
+Beginning of line is column 0. This is calculated using the redisplay
+display tables. If WINDOW is nil, the current window is assumed.
+If POS is nil, point is assumed. Note that POS must be visible for
+a non-nil result to be returned.
+*/
+ (window, pos))
+{
+ struct window* w = decode_window (window);
+ display_line_dynarr *dla = window_display_lines (w, CURRENT_DISP);
+
+ struct display_line *dl = 0;
+ struct display_block *db = 0;
+ struct rune* rb = 0;
+ int y = w->last_point_y[CURRENT_DISP];
+ int x = w->last_point_x[CURRENT_DISP];
+
+ if (MINI_WINDOW_P (w))
+ return Qnil;
+
+ if (y<0 || x<0 || y >= Dynarr_length (dla) || !NILP (pos))
+ {
+ int first_line, i;
+ Bufpos point;
+
+ if (NILP (pos))
+ pos = Fwindow_point (window);
+
+ CHECK_INT (pos);
+ point = XINT (pos);
+
+ if (Dynarr_length (dla) && Dynarr_atp (dla, 0)->modeline)
+ first_line = 1;
+ else
+ first_line = 0;
+
+ for (i = first_line; i < Dynarr_length (dla); i++)
+ {
+ dl = Dynarr_atp (dla, i);
+ /* find the vertical location first */
+ if (point >= dl->bufpos && point <= dl->end_bufpos)
+ {
+ db = get_display_block_from_line (dl, TEXT);
+ for (i = 0; i < Dynarr_length (db->runes); i++)
+ {
+ rb = Dynarr_atp (db->runes, i);
+ if (point <= rb->bufpos)
+ goto found_bufpos;
+ }
+ return Qnil;
+ }
+ }
+ return Qnil;
+ found_bufpos:
+ ;
+ }
+ else
+ {
+ /* optimised case */
+ dl = Dynarr_atp (dla, y);
+ db = get_display_block_from_line (dl, TEXT);
+
+ if (x >= Dynarr_length (db->runes))
+ return Qnil;
+
+ rb = Dynarr_atp (db->runes, x);
+ }
+
+ return make_int (rb->xpos - WINDOW_LEFT (w));
+}
+
\f
#ifdef DEBUG_XEMACS
/* This is short and simple in elisp, but... it was written to debug
defsymbol (&Qwindowp, "windowp");
defsymbol (&Qwindow_live_p, "window-live-p");
defsymbol (&Qwindow_configurationp, "window-configuration-p");
- defsymbol (&Qscroll_up, "scroll-up");
- defsymbol (&Qscroll_down, "scroll-down");
defsymbol (&Qtemp_buffer_show_hook, "temp-buffer-show-hook");
defsymbol (&Qdisplay_buffer, "display-buffer");
#endif
DEFSUBR (Fselected_window);
+ DEFSUBR (Flast_nonminibuf_window);
DEFSUBR (Fminibuffer_window);
DEFSUBR (Fwindow_minibuffer_p);
DEFSUBR (Fwindowp);
DEFSUBR (Fwindow_previous_child);
DEFSUBR (Fwindow_parent);
DEFSUBR (Fwindow_lowest_p);
+ DEFSUBR (Fwindow_truncated_p);
DEFSUBR (Fwindow_highest_p);
DEFSUBR (Fwindow_leftmost_p);
DEFSUBR (Fwindow_rightmost_p);
DEFSUBR (Fset_window_configuration);
DEFSUBR (Fcurrent_window_configuration);
DEFSUBR (Fsave_window_excursion);
+ DEFSUBR (Fcurrent_pixel_column);
}
void
-vars_of_window (void)
+reinit_vars_of_window (void)
{
+ int i;
/* Make sure all windows get marked */
minibuf_window = Qnil;
- staticpro (&minibuf_window);
+ staticpro_nodump (&minibuf_window);
+
+ for (i = 0; i < countof (Vwindow_configuration_free_list); i++)
+ {
+ Vwindow_configuration_free_list[i] =
+ make_lcrecord_list (sizeof_window_config_for_n_windows (i + 1),
+ &lrecord_window_configuration);
+ staticpro_nodump (&Vwindow_configuration_free_list[i]);
+ }
+}
+
+void
+vars_of_window (void)
+{
+ reinit_vars_of_window ();
DEFVAR_BOOL ("scroll-on-clipped-lines", &scroll_on_clipped_lines /*
*Non-nil means to scroll if point lands on a line which is clipped.
*/ );
Vother_window_scroll_buffer = Qnil;
+ DEFVAR_LISP ("window-pixel-scroll-increment", &Vwindow_pixel_scroll_increment /*
+*Number of pixels to scroll by per requested line.
+If nil then normal line scrolling occurs regardless of line height.
+If t then scrolling is done in increments equal to the height of the default face.
+*/ );
+ Vwindow_pixel_scroll_increment = Qt;
+
DEFVAR_INT ("next-screen-context-lines", &next_screen_context_lines /*
*Number of lines of continuity when scrolling by screenfuls.
*/ );
*Delete any window less than this wide.
*/ );
window_min_width = 10;
-
- {
- int i;
-
- for (i = 0; i < countof (Vwindow_configuration_free_list); i++)
- {
- Vwindow_configuration_free_list[i] =
- make_lcrecord_list (sizeof_window_config_for_n_windows (i + 1),
- &lrecord_window_configuration);
- staticpro (&Vwindow_configuration_free_list[i]);
- }
- }
}
void
projects / chise / xemacs-chise.git.1 / blobdiff