/* Symbols used in text property values. */
+Lisp_Object Vdisplay_pixels_per_inch;
Lisp_Object Qspace, QCalign_to, QCrelative_width, QCrelative_height;
Lisp_Object Qleft_margin, Qright_margin, Qspace_width, Qraise;
Lisp_Object Qmargin;
extern Lisp_Object Qheight;
extern Lisp_Object QCwidth, QCheight, QCascent;
+extern Lisp_Object Qscroll_bar;
/* Non-nil means highlight trailing whitespace. */
Lisp_Object Vshow_trailing_whitespace;
+/* Non-nil means show the text cursor in void text areas
+ i.e. in blank areas after eol and eob. This used to be
+ the default in 21.3. */
+
+Lisp_Object Vshow_text_cursor_in_void;
+
/* Name of the face used to highlight trailing whitespace. */
Lisp_Object Qtrailing_whitespace;
++glyph;
}
+ /* If first glyph is partially visible, its first visible position is still 0. */
+ if (hpos < 0)
+ hpos = 0;
+
success_p = 1;
}
else
else if (x < window_box_right_offset (w, TEXT_AREA))
{
*area = TEXT_AREA;
- x0 = window_box_left_offset (w, TEXT_AREA);
+ x0 = window_box_left_offset (w, TEXT_AREA) + min (row->x, 0);
}
else
{
/* Append a stretch glyph to IT->glyph_row. OBJECT is the source
of the glyph, WIDTH and HEIGHT are the width and height of the
- stretch. ASCENT is the percentage/100 of HEIGHT to use for the
- ascent of the glyph (0 <= ASCENT <= 1). */
+ stretch. ASCENT is the ascent of the glyph (0 <= ASCENT <= HEIGHT). */
static void
append_stretch_glyph (it, object, width, height, ascent)
struct it *it;
Lisp_Object object;
int width, height;
- double ascent;
+ int ascent;
{
struct glyph *glyph;
enum glyph_row_area area = it->area;
- xassert (ascent >= 0 && ascent <= 1);
+ xassert (ascent >= 0 && ascent <= height);
glyph = it->glyph_row->glyphs[area] + it->glyph_row->used[area];
if (glyph < it->glyph_row->glyphs[area + 1])
glyph->padding_p = 0;
glyph->glyph_not_available_p = 0;
glyph->face_id = it->face_id;
- glyph->u.stretch.ascent = height * ascent;
+ glyph->u.stretch.ascent = ascent;
glyph->u.stretch.height = height;
glyph->font_type = FONT_TYPE_UNKNOWN;
++it->glyph_row->used[area];
}
+/* Calculate a width or height in pixels from a specification using
+ the following elements:
+
+ SPEC ::=
+ NUM - a (fractional) multiple of the default font width/height
+ (NUM) - specifies exactly NUM pixels
+ UNIT - a fixed number of pixels, see below.
+ ELEMENT - size of a display element in pixels, see below.
+ (NUM . SPEC) - equals NUM * SPEC
+ (+ SPEC SPEC ...) - add pixel values
+ (- SPEC SPEC ...) - subtract pixel values
+ (- SPEC) - negate pixel value
+
+ NUM ::=
+ INT or FLOAT - a number constant
+ SYMBOL - use symbol's (buffer local) variable binding.
+
+ UNIT ::=
+ in - pixels per inch *)
+ mm - pixels per 1/1000 meter *)
+ cm - pixels per 1/100 meter *)
+ width - width of current font in pixels.
+ height - height of current font in pixels.
+
+ *) using the ratio(s) defined in display-pixels-per-inch.
+
+ ELEMENT ::=
+
+ left-fringe - left fringe width in pixels
+ (left-fringe . nil) - left fringe width if inside margins, else 0
+ (left-fringe . t) - left fringe width if outside margins, else 0
+
+ right-fringe - right fringe width in pixels
+ (right-fringe . nil) - right fringe width if inside margins, else 0
+ (right-fringe . t) - right fringe width if outside margins, else 0
+
+ left-margin - left margin width in pixels
+ right-margin - right margin width in pixels
+
+ scroll-bar - scroll-bar area width in pixels
+ (scroll-bar . left) - scroll-bar width if on left, else 0
+ (scroll-bar . right) - scroll-bar width if on right, else 0
+
+ Examples:
+
+ Pixels corresponding to 5 inches:
+ (5 . in)
+
+ Total width of non-text areas on left side of window:
+ (+ left-fringe left-margin (scroll-bar . left))
+
+ Total width of fringes if inside display margins:
+ (+ (left-fringe) (right-fringe))
+
+ Width of left margin minus width of 1 character in the default font:
+ (- left-margin 1)
+
+ Width of left margin minus width of 2 characters in the current font:
+ (- left-margin (2 . width))
+
+ Width of left fringe plus left margin minus one pixel:
+ (- (+ left-fringe left-margin) (1))
+ (+ left-fringe left-margin (- (1)))
+ (+ left-fringe left-margin (-1))
+
+*/
+
+#define NUMVAL(X) \
+ ((INTEGERP (X) || FLOATP (X)) \
+ ? XFLOATINT (X) \
+ : - 1)
+
+static int
+calc_pixel_width_or_height (res, it, prop, font, width_p)
+ double *res;
+ struct it *it;
+ Lisp_Object prop;
+ XFontStruct *font;
+ int width_p;
+{
+ double pixels;
+
+#define OK_PIXELS(val) ((*res = (val)), 1)
+
+ if (SYMBOLP (prop))
+ {
+ if (SCHARS (SYMBOL_NAME (prop)) == 2)
+ {
+ char *unit = SDATA (SYMBOL_NAME (prop));
+
+ if (unit[0] == 'i' && unit[1] == 'n')
+ pixels = 1.0;
+ else if (unit[0] == 'm' && unit[1] == 'm')
+ pixels = 25.4;
+ else if (unit[0] == 'c' && unit[1] == 'm')
+ pixels = 2.54;
+ else
+ pixels = 0;
+ if (pixels > 0)
+ {
+ double ppi;
+ if ((ppi = NUMVAL (Vdisplay_pixels_per_inch), ppi > 0)
+ || (CONSP (Vdisplay_pixels_per_inch)
+ && (ppi = (width_p
+ ? NUMVAL (XCAR (Vdisplay_pixels_per_inch))
+ : NUMVAL (XCDR (Vdisplay_pixels_per_inch))),
+ ppi > 0)))
+ return OK_PIXELS (ppi / pixels);
+
+ return 0;
+ }
+ }
+
+ if (EQ (prop, Qheight))
+ return OK_PIXELS (font ? FONT_HEIGHT (font) : FRAME_LINE_HEIGHT (it->f));
+ if (EQ (prop, Qwidth))
+ return OK_PIXELS (font ? FONT_WIDTH (font) : FRAME_COLUMN_WIDTH (it->f));
+ if (EQ (prop, Qleft_fringe))
+ return OK_PIXELS (WINDOW_LEFT_FRINGE_WIDTH (it->w));
+ if (EQ (prop, Qright_fringe))
+ return OK_PIXELS (WINDOW_RIGHT_FRINGE_WIDTH (it->w));
+ if (EQ (prop, Qleft_margin))
+ return OK_PIXELS (WINDOW_LEFT_MARGIN_WIDTH (it->w));
+ if (EQ (prop, Qright_margin))
+ return OK_PIXELS (WINDOW_RIGHT_MARGIN_WIDTH (it->w));
+ if (EQ (prop, Qscroll_bar))
+ return OK_PIXELS (WINDOW_SCROLL_BAR_AREA_WIDTH (it->w));
+
+ prop = Fbuffer_local_value (prop, it->w->buffer);
+ }
+
+ if (INTEGERP (prop) || FLOATP (prop))
+ {
+ int base_unit = (width_p
+ ? FRAME_COLUMN_WIDTH (it->f)
+ : FRAME_LINE_HEIGHT (it->f));
+ return OK_PIXELS (XFLOATINT (prop) * base_unit);
+ }
+
+ if (CONSP (prop))
+ {
+ Lisp_Object car = XCAR (prop);
+ Lisp_Object cdr = XCDR (prop);
+
+ if (SYMBOLP (car))
+ {
+ if (EQ (car, Qplus) || EQ (car, Qminus))
+ {
+ int first = 1;
+ double px;
+
+ pixels = 0;
+ while (CONSP (cdr))
+ {
+ if (!calc_pixel_width_or_height (&px, it, XCAR (cdr), font, width_p))
+ return 0;
+ if (first)
+ pixels = (EQ (car, Qplus) ? px : -px), first = 0;
+ else
+ pixels += px;
+ cdr = XCDR (cdr);
+ }
+ if (EQ (car, Qminus))
+ pixels = -pixels;
+ return OK_PIXELS (pixels);
+ }
+
+ if (EQ (car, Qleft_fringe))
+ return OK_PIXELS ((WINDOW_HAS_FRINGES_OUTSIDE_MARGINS (it->w)
+ == !NILP (cdr))
+ ? WINDOW_LEFT_FRINGE_WIDTH (it->w)
+ : 0);
+ if (EQ (car, Qright_fringe))
+ return OK_PIXELS ((WINDOW_HAS_FRINGES_OUTSIDE_MARGINS (it->w)
+ == !NILP (cdr))
+ ? WINDOW_RIGHT_FRINGE_WIDTH (it->w)
+ : 0);
+ if (EQ (car, Qscroll_bar))
+ return OK_PIXELS ((WINDOW_HAS_VERTICAL_SCROLL_BAR_ON_LEFT (it->w)
+ == EQ (cdr, Qleft))
+ ? WINDOW_SCROLL_BAR_AREA_WIDTH (it->w)
+ : 0);
+
+ car = Fbuffer_local_value (car, it->w->buffer);
+ }
+
+ if (INTEGERP (car) || FLOATP (car))
+ {
+ double fact;
+ pixels = XFLOATINT (car);
+ if (NILP (cdr))
+ return OK_PIXELS (pixels);
+ if (calc_pixel_width_or_height (&fact, it, cdr, font, width_p))
+ return OK_PIXELS (pixels * fact);
+ return 0;
+ }
+
+ return 0;
+ }
+
+ return 0;
+}
+
/* Produce a stretch glyph for iterator IT. IT->object is the value
of the glyph property displayed. The value must be a list
`(space KEYWORD VALUE ...)' with the following KEYWORD/VALUE pairs
of the stretch should be used for the ascent of the stretch.
ASCENT must be in the range 0 <= ASCENT <= 100. */
-#define NUMVAL(X) \
- ((INTEGERP (X) || FLOATP (X)) \
- ? XFLOATINT (X) \
- : - 1)
-
-
static void
produce_stretch_glyph (it)
struct it *it;
{
- /* (space :width WIDTH :height HEIGHT. */
+ /* (space :width WIDTH :height HEIGHT ...) */
Lisp_Object prop, plist;
int width = 0, height = 0;
- double ascent = 0;
+ int zero_width_ok_p = 0, zero_height_ok_p = 0;
+ int ascent = 0;
+ double tem;
struct face *face = FACE_FROM_ID (it->f, it->face_id);
XFontStruct *font = face->font ? face->font : FRAME_FONT (it->f);
plist = XCDR (it->object);
/* Compute the width of the stretch. */
- if (prop = Fplist_get (plist, QCwidth),
- NUMVAL (prop) > 0)
- /* Absolute width `:width WIDTH' specified and valid. */
- width = NUMVAL (prop) * FRAME_COLUMN_WIDTH (it->f);
+ if ((prop = Fplist_get (plist, QCwidth), !NILP (prop))
+ && calc_pixel_width_or_height (&tem, it, prop, font, 1))
+ {
+ /* Absolute width `:width WIDTH' specified and valid. */
+ zero_width_ok_p = 1;
+ width = (int)tem;
+ }
else if (prop = Fplist_get (plist, QCrelative_width),
NUMVAL (prop) > 0)
{
x_produce_glyphs (&it2);
width = NUMVAL (prop) * it2.pixel_width;
}
- else if (prop = Fplist_get (plist, QCalign_to),
- NUMVAL (prop) > 0)
- width = NUMVAL (prop) * FRAME_COLUMN_WIDTH (it->f) - it->current_x;
+ else if ((prop = Fplist_get (plist, QCalign_to), !NILP (prop))
+ && calc_pixel_width_or_height (&tem, it, prop, font, 1))
+ {
+ width = max (0, (int)tem - it->current_x);
+ zero_width_ok_p = 1;
+ }
else
/* Nothing specified -> width defaults to canonical char width. */
width = FRAME_COLUMN_WIDTH (it->f);
+ if (width <= 0 && (width < 0 || !zero_width_ok_p))
+ width = 1;
+
/* Compute height. */
- if (prop = Fplist_get (plist, QCheight),
- NUMVAL (prop) > 0)
- height = NUMVAL (prop) * FRAME_LINE_HEIGHT (it->f);
+ if ((prop = Fplist_get (plist, QCheight), !NILP (prop))
+ && calc_pixel_width_or_height (&tem, it, prop, font, 0))
+ {
+ height = (int)tem;
+ zero_height_ok_p = 1;
+ }
else if (prop = Fplist_get (plist, QCrelative_height),
NUMVAL (prop) > 0)
height = FONT_HEIGHT (font) * NUMVAL (prop);
else
height = FONT_HEIGHT (font);
+ if (height <= 0 && (height < 0 || !zero_height_ok_p))
+ height = 1;
+
/* Compute percentage of height used for ascent. If
`:ascent ASCENT' is present and valid, use that. Otherwise,
derive the ascent from the font in use. */
if (prop = Fplist_get (plist, QCascent),
NUMVAL (prop) > 0 && NUMVAL (prop) <= 100)
- ascent = NUMVAL (prop) / 100.0;
+ ascent = height * NUMVAL (prop) / 100.0;
+ else if (!NILP (prop)
+ && calc_pixel_width_or_height (&tem, it, prop, font, 0))
+ ascent = min (max (0, (int)tem), height);
else
- ascent = (double) FONT_BASE (font) / FONT_HEIGHT (font);
-
- if (width <= 0)
- width = 1;
- if (height <= 0)
- height = 1;
+ ascent = (height * FONT_BASE (font)) / FONT_HEIGHT (font);
- if (it->glyph_row)
+ if (width > 0 && height > 0 && it->glyph_row)
{
Lisp_Object object = it->stack[it->sp - 1].string;
if (!STRINGP (object))
}
it->pixel_width = width;
- it->ascent = it->phys_ascent = height * ascent;
+ it->ascent = it->phys_ascent = ascent;
it->descent = it->phys_descent = height - it->ascent;
- it->nglyphs = 1;
+ it->nglyphs = width > 0 && height > 0 ? 1 : 0;
- if (face->box != FACE_NO_BOX)
+ if (width > 0 && height > 0 && face->box != FACE_NO_BOX)
{
if (face->box_line_width > 0)
{
{
/* Translate a space with a `space-width' property
into a stretch glyph. */
- double ascent = (double) FONT_BASE (font)
- / FONT_HEIGHT (font);
+ int ascent = (((it->ascent + it->descent) * FONT_BASE (font))
+ / FONT_HEIGHT (font));
append_stretch_glyph (it, it->object, it->pixel_width,
it->ascent + it->descent, ascent);
}
if (it->glyph_row)
{
- double ascent = (double) it->ascent / (it->ascent + it->descent);
append_stretch_glyph (it, it->object, it->pixel_width,
- it->ascent + it->descent, ascent);
+ it->ascent + it->descent, it->ascent);
}
}
else
ARG. If type is BAR_CURSOR, return in *WIDTH the specified width
of the bar cursor. */
-enum text_cursor_kinds
+static enum text_cursor_kinds
get_specified_cursor_type (arg, width)
Lisp_Object arg;
int *width;
setting of cursor-type. If explicitly marked off, draw no cursor.
In all other cases, we want a hollow box cursor. */
-enum text_cursor_kinds
-get_window_cursor_type (w, width, active_cursor)
+static enum text_cursor_kinds
+get_window_cursor_type (w, glyph, width, active_cursor)
struct window *w;
+ struct glyph *glyph;
int *width;
int *active_cursor;
{
/* Use normal cursor if not blinked off. */
if (!w->cursor_off_p)
- return cursor_type;
+ {
+ if (glyph->type == IMAGE_GLYPH) {
+ if (cursor_type == FILLED_BOX_CURSOR)
+ cursor_type = HOLLOW_BOX_CURSOR;
+ }
+ return cursor_type;
+ }
/* Cursor is blinked off, so determine how to "toggle" it. */
xassert (interrupt_input_blocked);
/* Set new_cursor_type to the cursor we want to be displayed. */
- new_cursor_type = get_window_cursor_type (w, &new_cursor_width, &active_cursor);
+ new_cursor_type = get_window_cursor_type (w, glyph,
+ &new_cursor_width, &active_cursor);
/* If cursor is currently being shown and we don't want it to be or
it is in the wrong place, or the cursor type is not what we want,
{
struct frame *f = XFRAME (w->frame);
Display_Info *dpyinfo = FRAME_X_DISPLAY_INFO (f);
- Cursor cursor = dpyinfo->vertical_scroll_bar_cursor;
+ Cursor cursor = FRAME_X_OUTPUT (f)->nontext_cursor;
int charpos;
Lisp_Object string, help, map, pos;
if (area == ON_MODE_LINE || area == ON_HEADER_LINE)
- string = mode_line_string (w, &x, &y, area, &charpos);
+ string = mode_line_string (w, &x, &y, 0, 0, area, &charpos);
else
- string = marginal_area_string (w, &x, &y, area, &charpos);
+ string = marginal_area_string (w, &x, &y, 0, 0, area, &charpos);
if (STRINGP (string))
{
}
/* Change the mouse pointer according to what is under X/Y. */
- map = Fget_text_property (pos, Qlocal_map, string);
- if (!KEYMAPP (map))
- map = Fget_text_property (pos, Qkeymap, string);
- if (KEYMAPP (map))
- cursor = FRAME_X_OUTPUT (f)->nontext_cursor;
+ if (area == ON_MODE_LINE)
+ {
+ map = Fget_text_property (pos, Qlocal_map, string);
+ if (!KEYMAPP (map))
+ map = Fget_text_property (pos, Qkeymap, string);
+ if (!KEYMAPP (map))
+ cursor = dpyinfo->vertical_scroll_bar_cursor;
+ }
}
rif->define_frame_cursor (f, cursor);
if (part == ON_VERTICAL_BORDER)
cursor = FRAME_X_OUTPUT (f)->horizontal_drag_cursor;
+ else if (part == ON_LEFT_FRINGE || part == ON_RIGHT_FRINGE)
+ cursor = FRAME_X_OUTPUT (f)->nontext_cursor;
else
cursor = FRAME_X_OUTPUT (f)->text_cursor;
|| area != TEXT_AREA
|| !MATRIX_ROW (w->current_matrix, vpos)->displays_text_p)
{
-#if defined (HAVE_NTGUI)
- /* ++KFS: Why is this necessary on W32 ? */
- clear_mouse_face (dpyinfo);
- cursor = FRAME_X_OUTPUT (f)->nontext_cursor;
-#else
if (clear_mouse_face (dpyinfo))
cursor = No_Cursor;
-#endif
+ if (NILP (Vshow_text_cursor_in_void))
+ cursor = FRAME_X_OUTPUT (f)->nontext_cursor;
goto set_cursor;
}
if (BUFFERP (object) && pos > BUF_Z (b))
goto set_cursor;
+ if (glyph->type == IMAGE_GLYPH)
+ cursor = FRAME_X_OUTPUT (f)->nontext_cursor;
+
/* Make the window's buffer temporarily current for
overlays_at and compute_char_face. */
obuf = current_buffer;
The face used for trailing whitespace is `trailing-whitespace'. */);
Vshow_trailing_whitespace = Qnil;
+ DEFVAR_LISP ("show-text-cursor-in-void", &Vshow_text_cursor_in_void,
+ doc: /* Non-nil means show the text cursor in void text areas.
+The default is to show the non-text (typically arrow) cursor. */);
+ Vshow_text_cursor_in_void = Qnil;
+
DEFVAR_LISP ("inhibit-redisplay", &Vinhibit_redisplay,
doc: /* Non-nil means don't actually do any redisplay.
This is used for internal purposes. */);
of the top or bottom of the window. */);
scroll_margin = 0;
+ DEFVAR_LISP ("display-pixels-per-inch", &Vdisplay_pixels_per_inch,
+ doc: /* Pixels per inch on current display.
+Value is a number or a cons (WIDTH-DPI . HEIGHT-DPI). */);
+ Vdisplay_pixels_per_inch = make_float (72.0);
+
#if GLYPH_DEBUG
DEFVAR_INT ("debug-end-pos", &debug_end_pos, doc: /* Don't ask. */);
#endif
This variable has the same structure as `mode-line-format' (which see),
and is used only on frames for which no explicit name has been set
\(see `modify-frame-parameters'). */);
+
DEFVAR_LISP ("icon-title-format", &Vicon_title_format,
doc: /* Template for displaying the title bar of an iconified frame.
\(Assuming the window manager supports this feature.)
projects / emacs.git / commitdiff