UI table layout

1 files changed, 56 insertions, 1 deletions

diff --git a/ui.cpp b/ui.cpp
index dc41268..5197559 100644
--- a/ui.cpp
+++ b/ui.cpp
@@ -841,6 +841,61 @@ void UI::Container::on_render() {
 	ui->mesh.set_clip(clip);
 }
 
+UI::Table::Table(UI* ui, Element* parent, const int* rs):
+	Container(ui, parent) {
+	int c = 0, i;
+	const int* r = rs;
+	for (; *r; r++, c++);
+	rows = (int*)heap_alloc(ui->heap, c + 1 * sizeof *rows);
+	for (i = 0; i < c; i++)
+		rows[i] = rs[i];
+	rows[i] = 0;
+}
+
+UI::Table::~Table() {
+	heap_free(ui->heap, rows);
+}
+
+UI::Rect UI::Table::layout(const Rect& avail) {
+	Rect used = avail;
+	Rect area = avail;
+	Element* child;
+	int* row = rows;
+	int cx = area.x + padding;
+	int rh = 0;
+	used.w = used.h = 0;
+	for (; *row; row++)
+		used.w += *row + padding;
+	row = rows;
+	for (child = children; child; child = child->next) {
+		if (!*row) {
+			int i = rh + padding;
+			cx = area.x + padding;
+			area.y += i;
+			area.h -= i * 2;
+			used.h += i;
+			rh = 0;
+			row = rows;
+		}
+		Rect carea = {
+			cx,
+			area.y,
+			used.w - padding * 2,
+			area.h
+		};
+		Rect r = child->layout(carea);
+		if (r.h > rh) rh = r.h;
+		cx += *row;
+		row++;
+	}
+	used.h += rh + padding;
+	bound = used;
+	bound.clip(avail);
+	clip = bound;
+	clip.clip(ui->area);
+	return bound;
+}
+
 UI::Toolbar::Toolbar(UI* ui, Element* parent):
 	Element(ui, parent), padding(0) {}
 
@@ -1300,7 +1355,7 @@ void UI::Modal::on_render() {
 void UI::Modal::on_update() {
 	if (dragging) {
 		const App& app = *ui->app;
-		Rect avail = bound;
+		Rect avail = ui->area;
 		avail.x = app.mx - drag_offset[0];
 		avail.y = app.my - drag_offset[1];
 		pos[0] = avail.x;