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-rw-r--r--src/draw.zig11
-rw-r--r--src/gui/gui.zig9
-rw-r--r--src/layout.zig17
-rw-r--r--src/mouse.zig59
-rw-r--r--src/pardes.zig5
-rw-r--r--src/tutor.txt9
6 files changed, 89 insertions, 21 deletions
diff --git a/src/draw.zig b/src/draw.zig
index fb770b60..4ad1a1fe 100644
--- a/src/draw.zig
+++ b/src/draw.zig
@@ -504,15 +504,8 @@ pub fn render(p: *Pardes, arena: std.mem.Allocator) !*Surface {
s.addRegion(.{ .kind = .guide, .rect = .{ .x = p.hover_col, .y = p.topBarHeight(), .w = 1, .h = s.rows -| p.topBarHeight() } });
}
}
- for (0..p.ncol) |cc| {
- if (p.hover_col < p.col_x[cc] or p.hover_col >= p.col_x[cc] + p.col_w[cc]) continue;
- // the same seam the h-handle hit test picks (see there)
- if (mouse.seamIdxAt(p, cc, p.hover_row) != null) {
- var col = p.col_x[cc];
- while (col < p.col_x[cc] + p.col_w[cc]) : (col += 1) s.overlayDash(col, p.hover_row, "╌");
- s.addRegion(.{ .kind = .guide, .rect = .{ .x = p.col_x[cc], .y = p.hover_row, .w = p.col_w[cc], .h = 1 } });
- }
- }
+ // No hint over a pane's last row: a row of text is no handle; two
+ // panes resize by the rule between them or by the grip.
for (0..p.ncol -| 1) |cn| {
if (p.hover_col != p.col_x[cn] + p.col_w[cn] -| 1) continue;
if (mouse.seamIdxAt(p, cn, p.hover_row) != null) continue;
diff --git a/src/gui/gui.zig b/src/gui/gui.zig
index 141a802a..ab281cb6 100644
--- a/src/gui/gui.zig
+++ b/src/gui/gui.zig
@@ -1972,7 +1972,11 @@ fn glyphForCodepoint(g: *const Gui, cp: u32) FaceGlyph {
}
const CellLayout = struct { w: f32, h: f32, x_off: f32, y_off: f32 };
-const MouseCell = struct { col: u16, row: u16, body_hit: ?pardes.Mouse.BodyHit = null, tag_hit: ?pardes.TagHit = null };
+const MouseCell = struct { col: u16, row: u16, body_hit: ?pardes.Mouse.BodyHit = null, tag_hit: ?pardes.TagHit = null, rule_above: bool = false };
+
+/// How near a row's top edge a press is on the rule drawn there between two
+/// panes: the rule's 2 px and a pixel either side.
+const rule_grab_px: f32 = 3;
const WindowGeometry = struct {
window_w: f32,
window_h: f32,
@@ -3420,6 +3424,7 @@ fn dispatch(g: *Gui, in: *Input, sev: *const c.SDL_Event) void {
.row = mc.row,
.tag_hit = mc.tag_hit,
.body_hit = mc.body_hit,
+ .rule_above = mc.rule_above,
.ctrl = (c.SDL_GetModState() & c.SDL_KMOD_CTRL) != 0,
},
});
@@ -3720,6 +3725,8 @@ fn gridCellAtDimensions(
) MouseCell {
const row: u16 = @intFromFloat(@min(@floor(@max(y, 0) / @max(body_h, 1)), 10_000));
var point: MouseCell = .{ .col = @intFromFloat(@min(@floor(@max(x, 0) / @max(body_w, 1)), 10_000)), .row = row };
+ // On the rule over this row, which is where two panes meet if they do.
+ point.rule_above = row > 0 and @max(y, 0) - @as(f32, @floatFromInt(row)) * @max(body_h, 1) < rule_grab_px;
if (core) |p| if (p.presentation.pointerFractional(p.screen_w, p.screen_h, x / @max(body_w, 1), y / @max(body_h, 1))) |mapped| {
for (p.surface.tagLayers()) |*layer| {
if (layer.tagHit(mapped.x * body_w, mapped.y * body_h, body_w, body_h, tagline_w, @floatFromInt(p.row_metrics.tagline_h))) |hit| {
diff --git a/src/layout.zig b/src/layout.zig
index 6de7a912..25c95d30 100644
--- a/src/layout.zig
+++ b/src/layout.zig
@@ -162,8 +162,15 @@ pub fn targetColumn(p: *Pardes, cur_x: u16) usize {
}
pub fn splitRowForExtent(y: u16, h: u16, cur_y: u16) ?u16 {
+ return splitRowFor(y, h, cur_y, null);
+}
+
+/// As `splitRowForExtent`, each pane keeping at least `least` rows when
+/// given: a pane dragged by its grip within its own column is how a
+/// terminal resizes, and acme lets either window keep only its tag.
+fn splitRowFor(y: u16, h: u16, cur_y: u16, least: ?u16) ?u16 {
if (h < 2) return null;
- const min_each: u16 = if (h >= config.MINH * 2) config.MINH else 1;
+ const min_each: u16 = least orelse if (h >= config.MINH * 2) config.MINH else 1;
const lo = y +| min_each;
const hi = y + h - min_each;
if (lo > hi) return y + h / 2;
@@ -176,7 +183,11 @@ pub fn movePlacement(p: *Pardes, id: usize, cur_x: u16, cur_y: u16) ?MovePlaceme
if (tc == src.col and p.col_n[src.col] == 1) return null;
if (tc == src.col) {
const sr = p.rects[id];
- if (cur_y >= sr.y and cur_y < sr.y + sr.h) return null;
+ // Dropped on itself it stays, unless dragged down from its top with
+ // a pane above: its top moves down there, the pane above taking the
+ // rows, as acme's window dragged by its button does. With no rule
+ // between panes, that is how a terminal resizes them.
+ if (cur_y >= sr.y and cur_y < sr.y + sr.h and (src.idx == 0 or cur_y <= sr.y)) return null;
}
var heights: [MAX_PANES]u16 = @splat(0);
for (0..p.ncol) |c| {
@@ -196,7 +207,7 @@ pub fn movePlacement(p: *Pardes, id: usize, cur_x: u16, cur_y: u16) ?MovePlaceme
const pid = p.col_panes[tc][k];
if (pid == id) continue;
const h = heights[pid];
- const row = splitRowForExtent(y, h, cur_y) orelse {
+ const row = splitRowFor(y, h, cur_y, if (tc == src.col) BOX_H else null) orelse {
y +|= h;
continue;
};
diff --git a/src/mouse.zig b/src/mouse.zig
index 36786612..1ca53017 100644
--- a/src/mouse.zig
+++ b/src/mouse.zig
@@ -97,13 +97,50 @@ fn cornerFixture(gpa: std.mem.Allocator) !*Pardes {
return p;
}
+test "a pane's last row of text is no resize handle; the rule over the next pane is" {
+ if (platform == .web) return;
+ const p = try cornerFixture(std.testing.allocator);
+ defer p.deinit();
+ const seam = seamRowOf(p, 1, 0);
+ const inside = p.col_x[1] + p.col_w[1] / 2;
+ p.update(.{ .mouse = .{ .button = .left, .kind = .press, .col = inside, .row = seam } });
+ try std.testing.expect(p.drag != .border_h);
+ p.update(.{ .mouse = .{ .button = .left, .kind = .release, .col = inside, .row = seam } });
+ try std.testing.expect(nudgeRightSeam(p, 2) == seam + 2);
+}
+
+test "a pane's grip dragged up or down its own column moves its top, down to a tag alone above" {
+ if (platform == .web) return;
+ const p = try cornerFixture(std.testing.allocator);
+ defer p.deinit();
+ const upper = p.col_panes[1][0];
+ const lower = p.col_panes[1][1];
+ const grip_x = p.rects[lower].x;
+ // Up, past the pane above's first row: it keeps one row, its tag.
+ const top = p.rects[upper].y;
+ p.update(.{ .mouse = .{ .button = .left, .kind = .press, .col = grip_x, .row = p.rects[lower].y } });
+ p.update(.{ .mouse = .{ .button = .left, .kind = .drag, .col = grip_x, .row = top } });
+ p.update(.{ .mouse = .{ .button = .left, .kind = .release, .col = grip_x, .row = top } });
+ p.sync();
+ try std.testing.expectEqual(@as(u16, 1), p.rects[upper].h);
+ try std.testing.expectEqual(lower, p.col_panes[1][1]);
+ // Down, inside itself: its top follows, the pane above taking the rows.
+ const to = p.rects[lower].y + 6;
+ p.update(.{ .mouse = .{ .button = .left, .kind = .press, .col = grip_x, .row = p.rects[lower].y } });
+ p.update(.{ .mouse = .{ .button = .left, .kind = .drag, .col = grip_x, .row = to } });
+ p.update(.{ .mouse = .{ .button = .left, .kind = .release, .col = grip_x, .row = to } });
+ p.sync();
+ try std.testing.expectEqual(to, p.rects[lower].y);
+}
+
fn nudgeRightSeam(p: *Pardes, delta: i32) u16 {
const from = seamRowOf(p, 1, 0);
const inside = p.col_x[1] + p.col_w[1] / 2;
const to: u16 = @intCast(@as(i32, from) + delta);
- p.update(.{ .mouse = .{ .button = .left, .kind = .press, .col = inside, .row = from } });
- p.update(.{ .mouse = .{ .button = .left, .kind = .drag, .col = inside, .row = to } });
- p.update(.{ .mouse = .{ .button = .left, .kind = .release, .col = inside, .row = to } });
+ // On the rule a pixel frontend draws over the lower pane's first row.
+ p.update(.{ .mouse = .{ .button = .left, .kind = .press, .col = inside, .row = from + 1, .rule_above = true } });
+ p.update(.{ .mouse = .{ .button = .left, .kind = .drag, .col = inside, .row = to + 1 } });
+ p.update(.{ .mouse = .{ .button = .left, .kind = .release, .col = inside, .row = to + 1 } });
p.sync();
return seamRowOf(p, 1, 0);
}
@@ -437,13 +474,17 @@ pub fn handleMouse(p: *Pardes, m: Mouse) void {
return;
}
}
- for (0..p.ncol) |cc| {
+ // Two panes are resized on the rule between them, never on a
+ // row of text; with no rule, by the grip, as acme moves a
+ // window by its button.
+ if (m.rule_above and mrow > 0) for (0..p.ncol) |cc| {
if (mcol < p.col_x[cc] or mcol >= p.col_x[cc] + p.col_w[cc]) continue;
- if (seamIdxAt(p, cc, mrow)) |k| {
- p.drag = .{ .border_h = .{ .col = cc, .top_idx = k, .cur_y = mrow } };
+ const seam = if (p.settings.tag_bottom) mrow else mrow - 1;
+ if (seamIdxAt(p, cc, seam)) |k| {
+ p.drag = .{ .border_h = .{ .col = cc, .top_idx = k, .cur_y = seam } };
return;
}
- }
+ };
const id = hovered orelse return;
const r = p.rects[id];
const pane = p.panes[id] orelse return;
@@ -597,7 +638,9 @@ pub fn dragUpdate(p: *Pardes, mcol: u16, mrow: u16, body_hit: ?Mouse.BodyHit) vo
if (k + 1 < p.col_n[cc]) {
const a = p.rects[p.col_panes[cc][k]];
const b = p.rects[p.col_panes[cc][k + 1]];
- d.cur_y = clampBorderRow(a.y, a.h, b.h, mrow, p.settings.tag_bottom);
+ // Held by the rule over the lower pane: the seam is the row above.
+ const seam = if (p.settings.tag_bottom) mrow else mrow -| 1;
+ d.cur_y = clampBorderRow(a.y, a.h, b.h, seam, p.settings.tag_bottom);
} else d.cur_y = mrow;
},
.column_move => |*d| d.cur_x = mcol,
diff --git a/src/pardes.zig b/src/pardes.zig
index ea03b3eb..8dbe6744 100644
--- a/src/pardes.zig
+++ b/src/pardes.zig
@@ -3483,6 +3483,11 @@ pub const Mouse = struct {
ctrl: bool = false,
body_hit: ?BodyHit = null,
tag_hit: ?TagHit = null,
+ /// A pixel frontend's press on the rule it draws at the top of this row,
+ /// which is where two panes meet if they do: the one grab that resizes
+ /// them there. A row of text never is one; a terminal, with no rule,
+ /// resizes by the grip.
+ rule_above: bool = false,
};
pub const Key = struct {
diff --git a/src/tutor.txt b/src/tutor.txt
index 0893415e..c59deeae 100644
--- a/src/tutor.txt
+++ b/src/tutor.txt
@@ -132,6 +132,15 @@
DelAbove close it, giving the space to the pane above (Del k)
DelBelow close it, giving the space to the pane below (Del j)
+ RESIZE, AS ACME MOVES A WINDOW
+ the grip (the box left of a pane's tag) drag it: drop it in another
+ column to move the pane there, or up or down its own
+ column to move its top, the pane above taking or giving
+ the rows -- down to its tag alone
+ the rule in the GUI, the line between two panes drags their seam
+ a column's right edge drags the column's width
+ A pane's last row is text like any other, never a handle.
+
A new file opens in a new COLUMN only if both panes would still get
100 columns of width. Otherwise it stacks in the one you are in.