Adding upstream version 3.3a.upstream/3.3a

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 235 insertions, 0 deletions

diff --git a/grid-view.c b/grid-view.c
new file mode 100644
index 0000000..f230d3c
--- /dev/null
+++ b/grid-view.c
@@ -0,0 +1,235 @@
+/* $OpenBSD$ */
+
+/*
+ * Copyright (c) 2008 Nicholas Marriott <nicholas.marriott@gmail.com>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER
+ * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
+ * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include <sys/types.h>
+
+#include <string.h>
+
+#include "tmux.h"
+
+/*
+ * Grid view functions. These work using coordinates relative to the visible
+ * screen area.
+ */
+
+#define grid_view_x(gd, x) (x)
+#define grid_view_y(gd, y) ((gd)->hsize + (y))
+
+/* Get cell. */
+void
+grid_view_get_cell(struct grid *gd, u_int px, u_int py, struct grid_cell *gc)
+{
+	grid_get_cell(gd, grid_view_x(gd, px), grid_view_y(gd, py), gc);
+}
+
+/* Set cell. */
+void
+grid_view_set_cell(struct grid *gd, u_int px, u_int py,
+    const struct grid_cell *gc)
+{
+	grid_set_cell(gd, grid_view_x(gd, px), grid_view_y(gd, py), gc);
+}
+
+/* Set padding. */
+void
+grid_view_set_padding(struct grid *gd, u_int px, u_int py)
+{
+	grid_set_padding(gd, grid_view_x(gd, px), grid_view_y(gd, py));
+}
+
+/* Set cells. */
+void
+grid_view_set_cells(struct grid *gd, u_int px, u_int py,
+    const struct grid_cell *gc, const char *s, size_t slen)
+{
+	grid_set_cells(gd, grid_view_x(gd, px), grid_view_y(gd, py), gc, s,
+	    slen);
+}
+
+/* Clear into history. */
+void
+grid_view_clear_history(struct grid *gd, u_int bg)
+{
+	struct grid_line	*gl;
+	u_int			 yy, last;
+
+	/* Find the last used line. */
+	last = 0;
+	for (yy = 0; yy < gd->sy; yy++) {
+		gl = grid_get_line(gd, grid_view_y(gd, yy));
+		if (gl->cellused != 0)
+			last = yy + 1;
+	}
+	if (last == 0) {
+		grid_view_clear(gd, 0, 0, gd->sx, gd->sy, bg);
+		return;
+	}
+
+	/* Scroll the lines into the history. */
+	for (yy = 0; yy < last; yy++) {
+		grid_collect_history(gd);
+		grid_scroll_history(gd, bg);
+	}
+	if (last < gd->sy)
+		grid_view_clear(gd, 0, 0, gd->sx, gd->sy - last, bg);
+	gd->hscrolled = 0;
+}
+
+/* Clear area. */
+void
+grid_view_clear(struct grid *gd, u_int px, u_int py, u_int nx, u_int ny,
+    u_int bg)
+{
+	px = grid_view_x(gd, px);
+	py = grid_view_y(gd, py);
+
+	grid_clear(gd, px, py, nx, ny, bg);
+}
+
+/* Scroll region up. */
+void
+grid_view_scroll_region_up(struct grid *gd, u_int rupper, u_int rlower,
+    u_int bg)
+{
+	if (gd->flags & GRID_HISTORY) {
+		grid_collect_history(gd);
+		if (rupper == 0 && rlower == gd->sy - 1)
+			grid_scroll_history(gd, bg);
+		else {
+			rupper = grid_view_y(gd, rupper);
+			rlower = grid_view_y(gd, rlower);
+			grid_scroll_history_region(gd, rupper, rlower, bg);
+		}
+	} else {
+		rupper = grid_view_y(gd, rupper);
+		rlower = grid_view_y(gd, rlower);
+		grid_move_lines(gd, rupper, rupper + 1, rlower - rupper, bg);
+	}
+}
+
+/* Scroll region down. */
+void
+grid_view_scroll_region_down(struct grid *gd, u_int rupper, u_int rlower,
+    u_int bg)
+{
+	rupper = grid_view_y(gd, rupper);
+	rlower = grid_view_y(gd, rlower);
+
+	grid_move_lines(gd, rupper + 1, rupper, rlower - rupper, bg);
+}
+
+/* Insert lines. */
+void
+grid_view_insert_lines(struct grid *gd, u_int py, u_int ny, u_int bg)
+{
+	u_int	sy;
+
+	py = grid_view_y(gd, py);
+
+	sy = grid_view_y(gd, gd->sy);
+
+	grid_move_lines(gd, py + ny, py, sy - py - ny, bg);
+}
+
+/* Insert lines in region. */
+void
+grid_view_insert_lines_region(struct grid *gd, u_int rlower, u_int py,
+    u_int ny, u_int bg)
+{
+	u_int	ny2;
+
+	rlower = grid_view_y(gd, rlower);
+
+	py = grid_view_y(gd, py);
+
+	ny2 = rlower + 1 - py - ny;
+	grid_move_lines(gd, rlower + 1 - ny2, py, ny2, bg);
+	grid_clear(gd, 0, py + ny2, gd->sx, ny - ny2, bg);
+}
+
+/* Delete lines. */
+void
+grid_view_delete_lines(struct grid *gd, u_int py, u_int ny, u_int bg)
+{
+	u_int	sy;
+
+	py = grid_view_y(gd, py);
+
+	sy = grid_view_y(gd, gd->sy);
+
+	grid_move_lines(gd, py, py + ny, sy - py - ny, bg);
+	grid_clear(gd, 0, sy - ny, gd->sx, py + ny - (sy - ny), bg);
+}
+
+/* Delete lines inside scroll region. */
+void
+grid_view_delete_lines_region(struct grid *gd, u_int rlower, u_int py,
+    u_int ny, u_int bg)
+{
+	u_int	ny2;
+
+	rlower = grid_view_y(gd, rlower);
+
+	py = grid_view_y(gd, py);
+
+	ny2 = rlower + 1 - py - ny;
+	grid_move_lines(gd, py, py + ny, ny2, bg);
+	grid_clear(gd, 0, py + ny2, gd->sx, ny - ny2, bg);
+}
+
+/* Insert characters. */
+void
+grid_view_insert_cells(struct grid *gd, u_int px, u_int py, u_int nx, u_int bg)
+{
+	u_int	sx;
+
+	px = grid_view_x(gd, px);
+	py = grid_view_y(gd, py);
+
+	sx = grid_view_x(gd, gd->sx);
+
+	if (px >= sx - 1)
+		grid_clear(gd, px, py, 1, 1, bg);
+	else
+		grid_move_cells(gd, px + nx, px, py, sx - px - nx, bg);
+}
+
+/* Delete characters. */
+void
+grid_view_delete_cells(struct grid *gd, u_int px, u_int py, u_int nx, u_int bg)
+{
+	u_int	sx;
+
+	px = grid_view_x(gd, px);
+	py = grid_view_y(gd, py);
+
+	sx = grid_view_x(gd, gd->sx);
+
+	grid_move_cells(gd, px, px + nx, py, sx - px - nx, bg);
+	grid_clear(gd, sx - nx, py, px + nx - (sx - nx), 1, bg);
+}
+
+/* Convert cells into a string. */
+char *
+grid_view_string_cells(struct grid *gd, u_int px, u_int py, u_int nx)
+{
+	px = grid_view_x(gd, px);
+	py = grid_view_y(gd, py);
+
+	return (grid_string_cells(gd, px, py, nx, NULL, 0, 0, 0));
+}