What do these do?
On Tue, May 13, 2014 at 08:54:49PM -0700, Keith Amling wrote:
> This is mostly straight-forward although it feels like there are a lot
> of layers to push it through. Also, I have no idea what's appropriate
> [if anything] to bind this to in emacs copy mode.
>
> Keith
>
> ---
> mode-key.c | 4 ++++
> screen.c | 12 ++++++++++-
> tmux.h | 7 ++++++-
> window-copy.c | 64
> +++++++++++++++++++++++++++++++++++++++++++++++++++++++++--
> 4 files changed, 83 insertions(+), 4 deletions(-)
>
> diff --git a/mode-key.c b/mode-key.c
> index 57be2d8164b9..eb97d3f8a385 100644
> --- a/mode-key.c
> +++ b/mode-key.c
> @@ -146,6 +146,8 @@ const struct mode_key_cmdstr mode_key_cmdstr_copy[] = {
> { MODEKEYCOPY_STARTSELECTION, "begin-selection" },
> { MODEKEYCOPY_TOPLINE, "top-line" },
> { MODEKEYCOPY_UP, "cursor-up" },
> + { MODEKEYCOPY_LEFTPRUNE, "left-prune" },
> + { MODEKEYCOPY_RIGHTPRUNE, "right-prune" },
>
> { 0, NULL }
> };
> @@ -275,6 +277,7 @@ const struct mode_key_entry mode_key_vi_copy[] = {
> { '?', 0, MODEKEYCOPY_SEARCHUP },
> { 'A', 0, MODEKEYCOPY_APPENDSELECTION },
> { 'B', 0, MODEKEYCOPY_PREVIOUSSPACE },
> + { 'C', 0, MODEKEYCOPY_RIGHTPRUNE },
> { 'D', 0, MODEKEYCOPY_COPYENDOFLINE },
> { 'E', 0, MODEKEYCOPY_NEXTSPACEEND },
> { 'F', 0, MODEKEYCOPY_JUMPBACK },
> @@ -300,6 +303,7 @@ const struct mode_key_entry mode_key_vi_copy[] = {
> { '\r', 0, MODEKEYCOPY_COPYSELECTION },
> { '^', 0, MODEKEYCOPY_BACKTOINDENTATION },
> { 'b', 0, MODEKEYCOPY_PREVIOUSWORD },
> + { 'c', 0, MODEKEYCOPY_LEFTPRUNE },
> { 'e', 0, MODEKEYCOPY_NEXTWORDEND },
> { 'f', 0, MODEKEYCOPY_JUMP },
> { 'g', 0, MODEKEYCOPY_HISTORYTOP },
> diff --git a/screen.c b/screen.c
> index 7bfc01543a01..f41cbb2d9cb8 100644
> --- a/screen.c
> +++ b/screen.c
> @@ -251,7 +251,8 @@ screen_resize_y(struct screen *s, u_int sy)
> /* Set selection. */
> void
> screen_set_selection(struct screen *s, u_int sx, u_int sy,
> - u_int ex, u_int ey, u_int rectflag, struct grid_cell *gc)
> + u_int ex, u_int ey, u_int rectflag, u_int leftprunex, u_int rightprunex,
> + struct grid_cell *gc)
> {
> struct screen_sel *sel = &s->sel;
>
> @@ -261,6 +262,9 @@ screen_set_selection(struct screen *s, u_int sx, u_int sy,
>
> sel->sx = sx; sel->sy = sy;
> sel->ex = ex; sel->ey = ey;
> +
> + sel->leftprunex = leftprunex;
> + sel->rightprunex = rightprunex;
> }
>
> /* Clear selection. */
> @@ -281,6 +285,12 @@ screen_check_selection(struct screen *s, u_int px, u_int
> py)
> if (!sel->flag)
> return (0);
>
> + if (px < sel->leftprunex)
> + return (0);
> +
> + if (px > sel->rightprunex)
> + return (0);
> +
> if (sel->rectflag) {
> if (sel->sy < sel->ey) {
> /* start line < end line -- downward selection. */
> diff --git a/tmux.h b/tmux.h
> index fde94afc47b3..aa01b17ee0e3 100644
> --- a/tmux.h
> +++ b/tmux.h
> @@ -584,6 +584,8 @@ enum mode_key_cmd {
> MODEKEYCOPY_STARTSELECTION,
> MODEKEYCOPY_TOPLINE,
> MODEKEYCOPY_UP,
> + MODEKEYCOPY_LEFTPRUNE,
> + MODEKEYCOPY_RIGHTPRUNE,
> };
>
> /* Entry in the default mode key tables. */
> @@ -761,6 +763,9 @@ struct screen_sel {
> u_int ex;
> u_int ey;
>
> + u_int leftprunex;
> + u_int rightprunex;
> +
> struct grid_cell cell;
> };
>
> @@ -2093,7 +2098,7 @@ void screen_set_cursor_colour(struct screen *,
> const char *);
> void screen_set_title(struct screen *, const char *);
> void screen_resize(struct screen *, u_int, u_int, int);
> void screen_set_selection(struct screen *,
> - u_int, u_int, u_int, u_int, u_int, struct grid_cell *);
> + u_int, u_int, u_int, u_int, u_int, u_int, u_int, struct grid_cell
> *);
> void screen_clear_selection(struct screen *);
> int screen_check_selection(struct screen *, u_int, u_int);
> void screen_reflow(struct screen *, u_int);
> diff --git a/window-copy.c b/window-copy.c
> index 69a3e13b8bbd..6d2edda8c567 100644
> --- a/window-copy.c
> +++ b/window-copy.c
> @@ -82,6 +82,8 @@ void window_copy_cursor_previous_word(struct
> window_pane *, const char *);
> void window_copy_scroll_up(struct window_pane *, u_int);
> void window_copy_scroll_down(struct window_pane *, u_int);
> void window_copy_rectangle_toggle(struct window_pane *);
> +void window_copy_left_prune(struct window_pane *);
> +void window_copy_right_prune(struct window_pane *);
>
> const struct window_mode window_copy_mode = {
> window_copy_init,
> @@ -141,6 +143,11 @@ struct window_copy_mode_data {
> u_int lastcx; /* position in last line with content */
> u_int lastsx; /* size of last line with content */
>
> + int leftprunex_set;
> + u_int leftprunex;
> + int rightprunex_set;
> + u_int rightprunex;
> +
> enum window_copy_input_type inputtype;
> const char *inputprompt;
> char *inputstr;
> @@ -169,6 +176,9 @@ window_copy_init(struct window_pane *wp)
> data->lastcx = 0;
> data->lastsx = 0;
>
> + data->leftprunex_set = 0;
> + data->rightprunex_set = 0;
> +
> data->backing_written = 0;
>
> data->rectflag = 0;
> @@ -723,6 +733,12 @@ window_copy_key(struct window_pane *wp, struct session
> *sess, int key)
> case MODEKEYCOPY_RECTANGLETOGGLE:
> window_copy_rectangle_toggle(wp);
> break;
> + case MODEKEYCOPY_LEFTPRUNE:
> + window_copy_left_prune(wp);
> + break;
> + case MODEKEYCOPY_RIGHTPRUNE:
> + window_copy_right_prune(wp);
> + break;
> default:
> break;
> }
> @@ -1295,7 +1311,7 @@ window_copy_update_selection(struct window_pane *wp,
> int may_redraw)
> struct screen *s = &data->screen;
> struct options *oo = &wp->window->options;
> struct grid_cell gc;
> - u_int sx, sy, ty, cy;
> + u_int sx, sy, ty, cy, leftprunex,
> rightprunex;
>
> if (!s->sel.flag)
> return (0);
> @@ -1320,9 +1336,12 @@ window_copy_update_selection(struct window_pane *wp,
> int may_redraw)
> } else
> sy -= ty;
> sy = screen_hsize(s) + sy;
> + leftprunex = data->leftprunex_set ? data->leftprunex : 0;
> + rightprunex = data->rightprunex_set ? data->rightprunex :
> (screen_size_x(s) - 1);
>
> screen_set_selection(s,
> - sx, sy, data->cx, screen_hsize(s) + data->cy, data->rectflag, &gc);
> + sx, sy, data->cx, screen_hsize(s) + data->cy, data->rectflag,
> + leftprunex, rightprunex, &gc);
>
> if (data->rectflag && may_redraw) {
> /*
> @@ -1428,6 +1447,23 @@ window_copy_get_selection(struct window_pane *wp,
> size_t *len)
> restsx = 0;
> }
>
> + if (data->leftprunex_set) {
> + if (firstsx < data->leftprunex) {
> + firstsx = data->leftprunex;
> + }
> + if (restsx < data->leftprunex) {
> + restsx = data->leftprunex;
> + }
> + }
> + if (data->rightprunex_set) {
> + if (restex > data->rightprunex + 1) {
> + restex = data->rightprunex + 1;
> + }
> + if (lastex > data->rightprunex + 1) {
> + lastex = data->rightprunex + 1;
> + }
> + }
> +
> /* Copy the lines. */
> for (i = sy; i <= ey; i++)
> window_copy_copy_line(wp, &buf, &off, i,
> @@ -2190,3 +2226,27 @@ window_copy_rectangle_toggle(struct window_pane *wp)
> window_copy_update_selection(wp, 1);
> window_copy_redraw_screen(wp);
> }
> +
> +void
> +window_copy_left_prune(struct window_pane *wp)
> +{
> + struct window_copy_mode_data *data = wp->modedata;
> + if (!data->rightprunex_set || data->cx <= data->rightprunex) {
> + data->leftprunex = data->cx;
> + data->leftprunex_set = 1;
> + window_copy_update_selection(wp, 1);
> + window_copy_redraw_screen(wp);
> + }
> +}
> +
> +void
> +window_copy_right_prune(struct window_pane *wp)
> +{
> + struct window_copy_mode_data *data = wp->modedata;
> + if (!data->leftprunex_set || data->cx >= data->leftprunex) {
> + data->rightprunex = data->cx;
> + data->rightprunex_set = 1;
> + window_copy_update_selection(wp, 1);
> + window_copy_redraw_screen(wp);
> + }
> +}
> --
> 1.9.1
>
>
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