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terminal/new: cursorDown
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@ -6787,6 +6787,7 @@ test "Terminal: cursorLeft reverse wrap on first row" {
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try testing.expectEqual(@as(usize, 0), t.screen.cursor.y);
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}
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// X
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test "Terminal: cursorDown basic" {
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const alloc = testing.allocator;
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var t = try init(alloc, 5, 5);
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@ -6803,6 +6804,7 @@ test "Terminal: cursorDown basic" {
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}
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}
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// X
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test "Terminal: cursorDown above bottom scroll margin" {
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const alloc = testing.allocator;
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var t = try init(alloc, 5, 5);
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@ -6820,6 +6822,7 @@ test "Terminal: cursorDown above bottom scroll margin" {
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}
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}
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// X
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test "Terminal: cursorDown below bottom scroll margin" {
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const alloc = testing.allocator;
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var t = try init(alloc, 5, 5);
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@ -6838,6 +6841,7 @@ test "Terminal: cursorDown below bottom scroll margin" {
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}
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}
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// X
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test "Terminal: cursorDown resets wrap" {
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const alloc = testing.allocator;
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var t = try init(alloc, 5, 5);
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@ -145,19 +145,19 @@ pub fn cursorRowUp(self: *Screen, n: size.CellCountInt) *pagepkg.Row {
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/// Move the cursor down.
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///
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/// Precondition: The cursor is not at the bottom of the screen.
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pub fn cursorDown(self: *Screen) void {
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assert(self.cursor.y + 1 < self.pages.rows);
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pub fn cursorDown(self: *Screen, n: size.CellCountInt) void {
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assert(self.cursor.y + n < self.pages.rows);
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// We move the offset into our page list to the next row and then
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// get the pointers to the row/cell and set all the cursor state up.
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const page_offset = self.cursor.page_offset.forward(1).?;
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const page_offset = self.cursor.page_offset.forward(n).?;
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const page_rac = page_offset.rowAndCell(self.cursor.x);
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self.cursor.page_offset = page_offset;
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self.cursor.page_row = page_rac.row;
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self.cursor.page_cell = page_rac.cell;
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// Y of course increases
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self.cursor.y += 1;
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self.cursor.y += n;
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}
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/// Move the cursor to some absolute horizontal position.
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@ -603,6 +603,22 @@ pub fn cursorUp(self: *Terminal, count_req: usize) void {
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self.screen.cursorUp(@intCast(count));
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}
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/// Move the cursor down amount lines. If amount is greater than the maximum
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/// move distance then it is internally adjusted to the maximum. This sequence
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/// will not scroll the screen or scroll region. If amount is 0, adjust it to 1.
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pub fn cursorDown(self: *Terminal, count_req: usize) void {
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// Always resets pending wrap
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self.screen.cursor.pending_wrap = false;
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// The max the cursor can move to depends where the cursor currently is
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const max = if (self.screen.cursor.y <= self.scrolling_region.bottom)
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self.scrolling_region.bottom - self.screen.cursor.y
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else
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self.rows - self.screen.cursor.y - 1;
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const count = @min(max, @max(count_req, 1));
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self.screen.cursorDown(@intCast(count));
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}
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/// Move the cursor to the left amount cells. If amount is 0, adjust it to 1.
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pub fn cursorLeft(self: *Terminal, count_req: usize) void {
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// Wrapping behavior depends on various terminal modes
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@ -775,7 +791,7 @@ pub fn index(self: *Terminal) !void {
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// We only move down if we're not already at the bottom of
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// the screen.
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if (self.screen.cursor.y < self.rows - 1) {
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self.screen.cursorDown();
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self.screen.cursorDown(1);
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}
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return;
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@ -805,7 +821,7 @@ pub fn index(self: *Terminal) !void {
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// Increase cursor by 1, maximum to bottom of scroll region
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if (self.screen.cursor.y < self.scrolling_region.bottom) {
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self.screen.cursorDown();
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self.screen.cursorDown(1);
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}
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}
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@ -3576,6 +3592,75 @@ test "Terminal: cursorLeft reverse wrap on first row" {
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try testing.expectEqual(@as(usize, 0), t.screen.cursor.y);
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}
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test "Terminal: cursorDown basic" {
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const alloc = testing.allocator;
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var t = try init(alloc, 5, 5);
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defer t.deinit(alloc);
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try t.print('A');
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t.cursorDown(10);
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try t.print('X');
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{
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const str = try t.plainString(testing.allocator);
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defer testing.allocator.free(str);
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try testing.expectEqualStrings("A\n\n\n\n X", str);
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}
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}
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test "Terminal: cursorDown above bottom scroll margin" {
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const alloc = testing.allocator;
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var t = try init(alloc, 5, 5);
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defer t.deinit(alloc);
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t.setTopAndBottomMargin(1, 3);
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try t.print('A');
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t.cursorDown(10);
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try t.print('X');
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{
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const str = try t.plainString(testing.allocator);
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defer testing.allocator.free(str);
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try testing.expectEqualStrings("A\n\n X", str);
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}
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}
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test "Terminal: cursorDown below bottom scroll margin" {
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const alloc = testing.allocator;
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var t = try init(alloc, 5, 5);
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defer t.deinit(alloc);
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t.setTopAndBottomMargin(1, 3);
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try t.print('A');
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t.setCursorPos(4, 1);
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t.cursorDown(10);
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try t.print('X');
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{
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const str = try t.plainString(testing.allocator);
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defer testing.allocator.free(str);
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try testing.expectEqualStrings("A\n\n\n\nX", str);
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}
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}
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test "Terminal: cursorDown resets wrap" {
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const alloc = testing.allocator;
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var t = try init(alloc, 5, 5);
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defer t.deinit(alloc);
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for ("ABCDE") |c| try t.print(c);
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try testing.expect(t.screen.cursor.pending_wrap);
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t.cursorDown(1);
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try testing.expect(!t.screen.cursor.pending_wrap);
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try t.print('X');
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{
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const str = try t.plainString(testing.allocator);
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defer testing.allocator.free(str);
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try testing.expectEqualStrings("ABCDE\n X", str);
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}
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}
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test "Terminal: deleteLines simple" {
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const alloc = testing.allocator;
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var t = try init(alloc, 5, 5);
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