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Fix bug with scrolling down and top scroll margin

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The Termux implementation of the ${CSI}${N}T escape sequence to scroll
down N lines (SD - Pan Up) did not take the top margin into account
when figuring out where to place the scrolled rows.

Fixes #28.
This commit is contained in:
Fredrik Fornwall
2015-12-12 00:07:55 +01:00
parent ce82979e2b
commit 16273a1981
2 changed files with 5 additions and 1 deletions
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app/src/main/java/com/termux/terminal/TerminalEmulator.java
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@@ -1444,7 +1444,7 @@ public final class TerminalEmulator {
final int linesToScrollArg = getArg0(1);
final int linesBetweenTopAndBottomMargins = mBottomMargin - mTopMargin;
final int linesToScroll = Math.min(linesBetweenTopAndBottomMargins, linesToScrollArg);
mScreen.blockCopy(0, mTopMargin, mColumns, linesBetweenTopAndBottomMargins - linesToScroll, 0, linesToScroll);
mScreen.blockCopy(0, mTopMargin, mColumns, linesBetweenTopAndBottomMargins - linesToScroll, 0, mTopMargin + linesToScroll);
blockClear(0, mTopMargin, mColumns, linesToScroll);
} else {
// "${CSI}${func};${startx};${starty};${firstrow};${lastrow}T" - initiate highlight mouse tracking.