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87 lines
3.7 KiB
87 lines
3.7 KiB
https://git.gnome.org/browse/vte/commit/?id=88e8e89560a62d0981ce2b18974a230d0a07dbdd
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From 88e8e89560a62d0981ce2b18974a230d0a07dbdd Mon Sep 17 00:00:00 2001
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From: Micah Cowan <micah@cowan.name>
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Date: Tue, 22 Oct 2013 23:30:43 +0200
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Subject: widget: Fix invalidation region
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When the sequence handler moves the cursor into the restricted scrolling region,
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the bbox needs to be reset, too.
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Fixes glitches with interspersing writes to the bottom line with scrolls of the
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upper region, and also fixes missing screen redraws when using mosh.
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https://bugzilla.gnome.org/show_bug.cgi?id=542087
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https://bugzilla.gnome.org/show_bug.cgi?id=686097
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diff --git a/src/vte.c b/src/vte.c
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index 9f6d7d8..a4d9d25 100644
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--- a/src/vte.c
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+++ b/src/vte.c
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@@ -4077,6 +4077,7 @@ vte_terminal_process_incoming(VteTerminal *terminal)
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long wcount, start, delta;
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gboolean leftovers, modified, bottom, again;
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gboolean invalidated_text;
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+ gboolean in_scroll_region;
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GArray *unichars;
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struct _vte_incoming_chunk *chunk, *next_chunk, *achunk = NULL;
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@@ -4096,6 +4097,10 @@ vte_terminal_process_incoming(VteTerminal *terminal)
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cursor = screen->cursor_current;
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cursor_visible = terminal->pvt->cursor_visible;
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+ in_scroll_region = screen->scrolling_restricted
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+ && (screen->cursor_current.row >= (screen->insert_delta + screen->scrolling_region.start))
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+ && (screen->cursor_current.row <= (screen->insert_delta + screen->scrolling_region.end));
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+
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/* We should only be called when there's data to process. */
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g_assert(terminal->pvt->incoming ||
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(terminal->pvt->pending->len > 0));
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@@ -4194,6 +4199,8 @@ skip_chunk:
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* points to the first character which isn't part of this
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* sequence. */
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if ((match != NULL) && (match[0] != '\0')) {
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+ gboolean new_in_scroll_region;
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+
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/* Call the right sequence handler for the requested
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* behavior. */
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_vte_terminal_handle_sequence(terminal,
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@@ -4204,12 +4211,21 @@ skip_chunk:
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start = (next - wbuf);
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modified = TRUE;
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- /* if we have moved during the sequence handler, restart the bbox */
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+ new_in_scroll_region = screen->scrolling_restricted
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+ && (screen->cursor_current.row >= (screen->insert_delta + screen->scrolling_region.start))
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+ && (screen->cursor_current.row <= (screen->insert_delta + screen->scrolling_region.end));
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+
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+ delta = screen->scroll_delta; /* delta may have changed from sequence. */
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+
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+ /* if we have moved greatly during the sequence handler, or moved
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+ * into a scroll_region from outside it, restart the bbox.
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+ */
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if (invalidated_text &&
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- (screen->cursor_current.col > bbox_bottomright.x + VTE_CELL_BBOX_SLACK ||
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- screen->cursor_current.col < bbox_topleft.x - VTE_CELL_BBOX_SLACK ||
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- screen->cursor_current.row > bbox_bottomright.y + VTE_CELL_BBOX_SLACK ||
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- screen->cursor_current.row < bbox_topleft.y - VTE_CELL_BBOX_SLACK)) {
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+ ((new_in_scroll_region && !in_scroll_region) ||
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+ (screen->cursor_current.col > bbox_bottomright.x + VTE_CELL_BBOX_SLACK ||
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+ screen->cursor_current.col < bbox_topleft.x - VTE_CELL_BBOX_SLACK ||
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+ screen->cursor_current.row > bbox_bottomright.y + VTE_CELL_BBOX_SLACK ||
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+ screen->cursor_current.row < bbox_topleft.y - VTE_CELL_BBOX_SLACK))) {
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/* Clip off any part of the box which isn't already on-screen. */
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bbox_topleft.x = MAX(bbox_topleft.x, 0);
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bbox_topleft.y = MAX(bbox_topleft.y, delta);
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@@ -4229,6 +4245,8 @@ skip_chunk:
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bbox_bottomright.x = bbox_bottomright.y = -G_MAXINT;
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bbox_topleft.x = bbox_topleft.y = G_MAXINT;
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}
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+
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+ in_scroll_region = new_in_scroll_region;
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} else
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/* Second, we have a NULL match, and next points to the very
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* next character in the buffer. Insert the character which
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--
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cgit v0.10.2
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