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Fix window text bottom - should not be changed if top changes.

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The TTY module stores top/height but the Apple monitor stores
top/bottom. If top changes, bottom should remain unchanged.

Improve the POKE 34 shim, and add a test.
This commit is contained in:
Joshua Bell
2020-06-24 21:19:49 -07:00
parent c64c10e5d2
commit 697ccd63e9
2 changed files with 9 additions and 2 deletions
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6
basic.js
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@@ -427,7 +427,11 @@ this.basic = (function() {
// Text window
0x0020: function(v) { if (env.tty.textWindow) { env.tty.textWindow.left = v; } },
0x0021: function(v) { if (env.tty.textWindow) { env.tty.textWindow.width = v; } },
0x0022: function(v) { if (env.tty.textWindow) { env.tty.textWindow.top = v; } },
0x0022: function(v) { if (env.tty.textWindow) {
var bottom = env.tty.textWindow.top + env.tty.textWindow.height;
env.tty.textWindow.top = v;
env.tty.textWindow.height = bottom - env.tty.textWindow.top;
} },
0x0023: function(v) { if (env.tty.textWindow) { env.tty.textWindow.height = v - env.tty.textWindow.top; } },
0x0024: function(v) { env.tty.setCursorPosition(v, void 0); },
0x0025: function(v) { env.tty.setCursorPosition(void 0, v); },