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Break the save-last-cell code into a separate function (so it can be

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called conditionally later).
This commit is contained in:
nicm
2016-05-27 23:02:17 +00:00
parent 9892d80d6f
commit 382222af8e
1 changed files with 44 additions and 37 deletions
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75
screen-write.c
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@@ -23,9 +23,13 @@
#include "tmux.h" #include "tmux.h"
void screen_write_initctx(struct screen_write_ctx *, struct tty_ctx *, int); static void screen_write_initctx(struct screen_write_ctx *,
void screen_write_overwrite(struct screen_write_ctx *, u_int); struct tty_ctx *);
int screen_write_combine(struct screen_write_ctx *, static void screen_write_save_last(struct screen_write_ctx *,
struct tty_ctx *);
static void screen_write_overwrite(struct screen_write_ctx *, u_int);
static int screen_write_combine(struct screen_write_ctx *,
const struct utf8_data *); const struct utf8_data *);
/* Initialise writing with a window. */ /* Initialise writing with a window. */
@@ -344,14 +348,10 @@ screen_write_copy(struct screen_write_ctx *ctx,
} }
/* Set up context for TTY command. */ /* Set up context for TTY command. */
void static void
screen_write_initctx(struct screen_write_ctx *ctx, struct tty_ctx *ttyctx, screen_write_initctx(struct screen_write_ctx *ctx, struct tty_ctx *ttyctx)
int save_last)
{ {
struct screen *s = ctx->s; struct screen *s = ctx->s;
struct grid *gd = s->grid;
struct grid_cell gc;
u_int xx;
ttyctx->wp = ctx->wp; ttyctx->wp = ctx->wp;
@@ -360,11 +360,17 @@ screen_write_initctx(struct screen_write_ctx *ctx, struct tty_ctx *ttyctx,
ttyctx->orlower = s->rlower; ttyctx->orlower = s->rlower;
ttyctx->orupper = s->rupper; ttyctx->orupper = s->rupper;
}
if (!save_last) /* Save last cell on screen. */
return; static void
screen_write_save_last(struct screen_write_ctx *ctx, struct tty_ctx *ttyctx)
{
struct screen *s = ctx->s;
struct grid *gd = s->grid;
struct grid_cell gc;
u_int xx;
/* Save the last cell on the screen. */
memcpy(&gc, &grid_default_cell, sizeof gc); memcpy(&gc, &grid_default_cell, sizeof gc);
for (xx = 1; xx <= screen_size_x(s); xx++) { for (xx = 1; xx <= screen_size_x(s); xx++) {
grid_view_get_cell(gd, screen_size_x(s) - xx, s->cy, &gc); grid_view_get_cell(gd, screen_size_x(s) - xx, s->cy, &gc);
@@ -507,7 +513,7 @@ screen_write_alignmenttest(struct screen_write_ctx *ctx)
struct grid_cell gc; struct grid_cell gc;
u_int xx, yy; u_int xx, yy;
screen_write_initctx(ctx, &ttyctx, 0); screen_write_initctx(ctx, &ttyctx);
memcpy(&gc, &grid_default_cell, sizeof gc); memcpy(&gc, &grid_default_cell, sizeof gc);
utf8_set(&gc.data, 'E'); utf8_set(&gc.data, 'E');
@@ -542,7 +548,7 @@ screen_write_insertcharacter(struct screen_write_ctx *ctx, u_int nx)
if (nx == 0) if (nx == 0)
return; return;
screen_write_initctx(ctx, &ttyctx, 0); screen_write_initctx(ctx, &ttyctx);
if (s->cx <= screen_size_x(s) - 1) if (s->cx <= screen_size_x(s) - 1)
grid_view_insert_cells(s->grid, s->cx, s->cy, nx); grid_view_insert_cells(s->grid, s->cx, s->cy, nx);
@@ -566,7 +572,7 @@ screen_write_deletecharacter(struct screen_write_ctx *ctx, u_int nx)
if (nx == 0) if (nx == 0)
return; return;
screen_write_initctx(ctx, &ttyctx, 0); screen_write_initctx(ctx, &ttyctx);
if (s->cx <= screen_size_x(s) - 1) if (s->cx <= screen_size_x(s) - 1)
grid_view_delete_cells(s->grid, s->cx, s->cy, nx); grid_view_delete_cells(s->grid, s->cx, s->cy, nx);
@@ -590,7 +596,7 @@ screen_write_clearcharacter(struct screen_write_ctx *ctx, u_int nx)
if (nx == 0) if (nx == 0)
return; return;
screen_write_initctx(ctx, &ttyctx, 0); screen_write_initctx(ctx, &ttyctx);
if (s->cx <= screen_size_x(s) - 1) if (s->cx <= screen_size_x(s) - 1)
grid_view_clear(s->grid, s->cx, s->cy, nx, 1); grid_view_clear(s->grid, s->cx, s->cy, nx, 1);
@@ -615,7 +621,7 @@ screen_write_insertline(struct screen_write_ctx *ctx, u_int ny)
if (ny == 0) if (ny == 0)
return; return;
screen_write_initctx(ctx, &ttyctx, 0); screen_write_initctx(ctx, &ttyctx);
grid_view_insert_lines(s->grid, s->cy, ny); grid_view_insert_lines(s->grid, s->cy, ny);
@@ -629,7 +635,7 @@ screen_write_insertline(struct screen_write_ctx *ctx, u_int ny)
if (ny == 0) if (ny == 0)
return; return;
screen_write_initctx(ctx, &ttyctx, 0); screen_write_initctx(ctx, &ttyctx);
if (s->cy < s->rupper || s->cy > s->rlower) if (s->cy < s->rupper || s->cy > s->rlower)
grid_view_insert_lines(s->grid, s->cy, ny); grid_view_insert_lines(s->grid, s->cy, ny);
@@ -656,7 +662,7 @@ screen_write_deleteline(struct screen_write_ctx *ctx, u_int ny)
if (ny == 0) if (ny == 0)
return; return;
screen_write_initctx(ctx, &ttyctx, 0); screen_write_initctx(ctx, &ttyctx);
grid_view_delete_lines(s->grid, s->cy, ny); grid_view_delete_lines(s->grid, s->cy, ny);
@@ -670,7 +676,7 @@ screen_write_deleteline(struct screen_write_ctx *ctx, u_int ny)
if (ny == 0) if (ny == 0)
return; return;
screen_write_initctx(ctx, &ttyctx, 0); screen_write_initctx(ctx, &ttyctx);
if (s->cy < s->rupper || s->cy > s->rlower) if (s->cy < s->rupper || s->cy > s->rlower)
grid_view_delete_lines(s->grid, s->cy, ny); grid_view_delete_lines(s->grid, s->cy, ny);
@@ -688,7 +694,7 @@ screen_write_clearline(struct screen_write_ctx *ctx)
struct screen *s = ctx->s; struct screen *s = ctx->s;
struct tty_ctx ttyctx; struct tty_ctx ttyctx;
screen_write_initctx(ctx, &ttyctx, 0); screen_write_initctx(ctx, &ttyctx);
grid_view_clear(s->grid, 0, s->cy, screen_size_x(s), 1); grid_view_clear(s->grid, 0, s->cy, screen_size_x(s), 1);
@@ -703,7 +709,7 @@ screen_write_clearendofline(struct screen_write_ctx *ctx)
struct tty_ctx ttyctx; struct tty_ctx ttyctx;
u_int sx; u_int sx;
screen_write_initctx(ctx, &ttyctx, 0); screen_write_initctx(ctx, &ttyctx);
sx = screen_size_x(s); sx = screen_size_x(s);
@@ -721,7 +727,7 @@ screen_write_clearstartofline(struct screen_write_ctx *ctx)
struct tty_ctx ttyctx; struct tty_ctx ttyctx;
u_int sx; u_int sx;
screen_write_initctx(ctx, &ttyctx, 0); screen_write_initctx(ctx, &ttyctx);
sx = screen_size_x(s); sx = screen_size_x(s);
@@ -755,7 +761,7 @@ screen_write_reverseindex(struct screen_write_ctx *ctx)
struct screen *s = ctx->s; struct screen *s = ctx->s;
struct tty_ctx ttyctx; struct tty_ctx ttyctx;
screen_write_initctx(ctx, &ttyctx, 0); screen_write_initctx(ctx, &ttyctx);
if (s->cy == s->rupper) if (s->cy == s->rupper)
grid_view_scroll_region_down(s->grid, s->rupper, s->rlower); grid_view_scroll_region_down(s->grid, s->rupper, s->rlower);
@@ -795,7 +801,7 @@ screen_write_linefeed(struct screen_write_ctx *ctx, int wrapped)
struct grid_line *gl; struct grid_line *gl;
struct tty_ctx ttyctx; struct tty_ctx ttyctx;
screen_write_initctx(ctx, &ttyctx, 0); screen_write_initctx(ctx, &ttyctx);
gl = &s->grid->linedata[s->grid->hsize + s->cy]; gl = &s->grid->linedata[s->grid->hsize + s->cy];
if (wrapped) if (wrapped)
@@ -829,7 +835,7 @@ screen_write_clearendofscreen(struct screen_write_ctx *ctx)
struct tty_ctx ttyctx; struct tty_ctx ttyctx;
u_int sx, sy; u_int sx, sy;
screen_write_initctx(ctx, &ttyctx, 0); screen_write_initctx(ctx, &ttyctx);
sx = screen_size_x(s); sx = screen_size_x(s);
sy = screen_size_y(s); sy = screen_size_y(s);
@@ -854,7 +860,7 @@ screen_write_clearstartofscreen(struct screen_write_ctx *ctx)
struct tty_ctx ttyctx; struct tty_ctx ttyctx;
u_int sx; u_int sx;
screen_write_initctx(ctx, &ttyctx, 0); screen_write_initctx(ctx, &ttyctx);
sx = screen_size_x(s); sx = screen_size_x(s);
@@ -877,7 +883,7 @@ screen_write_clearscreen(struct screen_write_ctx *ctx)
u_int sx = screen_size_x(s); u_int sx = screen_size_x(s);
u_int sy = screen_size_y(s); u_int sy = screen_size_y(s);
screen_write_initctx(ctx, &ttyctx, 0); screen_write_initctx(ctx, &ttyctx);
/* Scroll into history if it is enabled. */ /* Scroll into history if it is enabled. */
if (s->grid->flags & GRID_HISTORY) if (s->grid->flags & GRID_HISTORY)
@@ -931,14 +937,15 @@ screen_write_cell(struct screen_write_ctx *ctx, const struct grid_cell *gc)
*/ */
if (width == 0) { if (width == 0) {
if (screen_write_combine(ctx, &gc->data) == 0) { if (screen_write_combine(ctx, &gc->data) == 0) {
screen_write_initctx(ctx, &ttyctx, 0); screen_write_initctx(ctx, &ttyctx);
tty_write(tty_cmd_utf8character, &ttyctx); tty_write(tty_cmd_utf8character, &ttyctx);
} }
return; return;
} }
/* Initialise the redraw context, saving the last cell. */ /* Initialise the redraw context, saving the last cell. */
screen_write_initctx(ctx, &ttyctx, 1); screen_write_initctx(ctx, &ttyctx);
screen_write_save_last(ctx, &ttyctx);
/* If in insert mode, make space for the cells. */ /* If in insert mode, make space for the cells. */
if ((s->mode & MODE_INSERT) && s->cx <= screen_size_x(s) - width) { if ((s->mode & MODE_INSERT) && s->cx <= screen_size_x(s) - width) {
@@ -1008,7 +1015,7 @@ screen_write_cell(struct screen_write_ctx *ctx, const struct grid_cell *gc)
} }
/* Combine a UTF-8 zero-width character onto the previous. */ /* Combine a UTF-8 zero-width character onto the previous. */
int static int
screen_write_combine(struct screen_write_ctx *ctx, const struct utf8_data *ud) screen_write_combine(struct screen_write_ctx *ctx, const struct utf8_data *ud)
{ {
struct screen *s = ctx->s; struct screen *s = ctx->s;
@@ -1049,7 +1056,7 @@ screen_write_combine(struct screen_write_ctx *ctx, const struct utf8_data *ud)
* character, it is necessary to also overwrite any other cells which covered * character, it is necessary to also overwrite any other cells which covered
* by the same character. * by the same character.
*/ */
void static void
screen_write_overwrite(struct screen_write_ctx *ctx, u_int width) screen_write_overwrite(struct screen_write_ctx *ctx, u_int width)
{ {
struct screen *s = ctx->s; struct screen *s = ctx->s;
@@ -1094,7 +1101,7 @@ screen_write_setselection(struct screen_write_ctx *ctx, u_char *str, u_int len)
{ {
struct tty_ctx ttyctx; struct tty_ctx ttyctx;
screen_write_initctx(ctx, &ttyctx, 0); screen_write_initctx(ctx, &ttyctx);
ttyctx.ptr = str; ttyctx.ptr = str;
ttyctx.num = len; ttyctx.num = len;
@@ -1106,7 +1113,7 @@ screen_write_rawstring(struct screen_write_ctx *ctx, u_char *str, u_int len)
{ {
struct tty_ctx ttyctx; struct tty_ctx ttyctx;
screen_write_initctx(ctx, &ttyctx, 0); screen_write_initctx(ctx, &ttyctx);
ttyctx.ptr = str; ttyctx.ptr = str;
ttyctx.num = len; ttyctx.num = len;