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mod: fix rendering resizing; layout placement of child elements for vertical and horizontal directions

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Work in progress for separator configuration of border properties
This commit is contained in:
Yves Biener
2025-02-06 20:10:22 +01:00
parent 009d2129b6
commit 8586a05508
3 changed files with 131 additions and 43 deletions
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44
src/render.zig
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@@ -42,33 +42,33 @@ pub const Buffered = struct {
}
pub fn resize(this: *@This(), size: Size) !void {
this.size = size;
if (!this.created) {
log.debug("renderer::resize", .{});
defer this.size = size;
if (this.size.cols >= size.cols or this.size.rows >= size.rows) {
if (!this.created) {
this.screen = this.allocator.alloc(Cell, size.cols * size.rows) catch @panic("render.zig: Out of memory.");
@memset(this.screen, .{});
this.virtual_screen = this.allocator.alloc(Cell, size.cols * size.rows) catch @panic("render.zig: Out of memory.");
@memset(this.virtual_screen, .{});
this.created = true;
}
} else {
this.allocator.free(this.screen);
this.screen = this.allocator.alloc(Cell, size.cols * size.rows) catch @panic("render.zig: Out of memory.");
@memset(this.screen, Cell{});
@memset(this.screen, .{});
this.allocator.free(this.virtual_screen);
this.virtual_screen = this.allocator.alloc(Cell, size.cols * size.rows) catch @panic("render.zig: Out of memory.");
@memset(this.virtual_screen, Cell{});
this.created = true;
return;
}
if (this.allocator.resize(this.screen, size.cols * size.rows)) {
@panic("render.zig: Could not resize `screen` buffer");
}
if (this.allocator.resize(this.virtual_screen, size.cols * size.rows)) {
@panic("render.zig: Could not resize `virtual screen` buffer.");
@memset(this.virtual_screen, .{});
}
try this.clear();
}
pub fn clear(this: *@This(), size: Size) void {
/// Clear the entire screen and reset the screen buffer, to force a re-draw with the next `flush` call.
pub fn clear(this: *@This()) !void {
log.debug("renderer::clear", .{});
var vs = this.virtual_screen;
const anchor = (size.anchor.row * this.size.rows) + size.anchor.col;
// TODO: use memset to effectivly reset the coresponding cells?
for (0..size.rows) |row| {
for (0..size.cols) |col| {
vs[anchor + (row * this.size.cols) + col].reset();
}
}
try terminal.clearScreen();
@memset(this.screen, .{});
}
/// Render provided cells at size (anchor and dimension) into the *virtual screen*.
@@ -76,8 +76,6 @@ pub const Buffered = struct {
const size: Size = container.size;
const cells: []const Cell = container.contents();
// log.debug("renderer:render: cells: {any} @ {any}", .{ cells, size });
if (cells.len == 0) return;
var idx: usize = 0;