From fbaa9111a8525daeef8a5534784da2f793917a36 Mon Sep 17 00:00:00 2001
From: taiyu <taiyu.len@gmail.com>
Date: Thu, 20 Aug 2015 04:47:36 -0700
Subject: [PATCH] setup for resizable windows, drop weight

---
 include/container.h |  2 --
 sway/commands.c     |  1 +
 sway/container.c    |  9 +++++-
 sway/layout.c       | 75 +++++++++++++++++++++++++++++----------------
 sway/log.c          |  1 -
 5 files changed, 58 insertions(+), 30 deletions(-)

diff --git a/include/container.h b/include/container.h
index 76ddec7e..4f1877e3 100644
--- a/include/container.h
+++ b/include/container.h
@@ -44,8 +44,6 @@ struct sway_container {
 	bool is_floating;
 	bool is_focused;
 
-	int weight;
-
 	char *name;
 
 	int gaps;
diff --git a/sway/commands.c b/sway/commands.c
index c4cf96a2..babefd02 100644
--- a/sway/commands.c
+++ b/sway/commands.c
@@ -242,6 +242,7 @@ static bool cmd_floating(struct sway_config *config, int argc, char **argv) {
 				add_sibling(focused, view);
 			}
 			// Refocus on the view once its been put back into the layout
+			view->width = view->height = 0;
 			arrange_windows(active_workspace, -1, -1);
 		}
 		set_focused_container(view);
diff --git a/sway/container.c b/sway/container.c
index 9c6b78e9..c9163784 100644
--- a/sway/container.c
+++ b/sway/container.c
@@ -14,7 +14,6 @@ static swayc_t *new_swayc(enum swayc_types type) {
 	c->handle = -1;
 	c->layout = L_NONE;
 	c->type = type;
-	c->weight  = 1;
 	if (type != C_VIEW) {
 		c->children = create_list();
 	}
@@ -172,6 +171,14 @@ swayc_t *new_view(swayc_t *sibling, wlc_handle handle) {
 	view->name = title ? strdup(title) : NULL;
 	view->visible = true;
 	view->is_focused = true;
+	//Setup geometry
+	view->width = sibling->parent->width;
+	view->height = sibling->parent->height;
+	if (sibling->parent->layout == L_HORIZ) {
+		view->width /= sibling->parent->children->length;
+	} else {
+		view->height /= sibling->parent->children->length;
+	}
 
 	view->gaps = config->gaps_inner;
 
diff --git a/sway/layout.c b/sway/layout.c
index f600cf49..50a25442 100644
--- a/sway/layout.c
+++ b/sway/layout.c
@@ -186,40 +186,63 @@ void arrange_windows(swayc_t *container, int width, int height) {
 		break;
 	}
 
-	double total_weight = 0;
-	for (i = 0; i < container->children->length; ++i) {
-		swayc_t *child = container->children->items[i];
-		total_weight += child->weight;
-	}
-
+	x = y = 0;
+	double scale = 0;
 	switch (container->layout) {
 	case L_HORIZ:
 	default:
-		sway_log(L_DEBUG, "Arranging %p horizontally", container);
+		//Calculate total width
 		for (i = 0; i < container->children->length; ++i) {
-			swayc_t *child = container->children->items[i];
-			double percent = child->weight / total_weight;
-			sway_log(L_DEBUG, "Calculating arrangement for %p:%d (will receive %.2f of %d)", child, child->type, percent, width);
-			child->x = x + container->x;
-			child->y = y + container->y;
-			int w = width * percent;
-			int h = height;
-			arrange_windows(child, w, h);
-			x += w;
+			int *old_width = &((swayc_t *)container->children->items[i])->width;
+			if (*old_width == 0) {
+				if (container->children->length > 1) {
+					*old_width = width / (container->children->length - 1);
+				} else {
+					*old_width = width;
+				}
+				sway_log(L_DEBUG,"setting width as %d",*old_width);
+			}
+			scale += *old_width;
+		}
+		//Resize windows
+		if (scale > 0.1) {
+			scale = width / scale;
+			sway_log(L_DEBUG, "Arranging %p horizontally", container);
+			for (i = 0; i < container->children->length; ++i) {
+				swayc_t *child = container->children->items[i];
+				sway_log(L_DEBUG, "Calculating arrangement for %p:%d (will scale %d by %f)", child, child->type, width, scale);
+				child->x = x + container->x;
+				child->y = y + container->y;
+				arrange_windows(child, child->width * scale, height);
+				x += child->width;
+			}
 		}
 		break;
 	case L_VERT:
-		sway_log(L_DEBUG, "Arranging %p vertically", container);
+		//Calculate total height
 		for (i = 0; i < container->children->length; ++i) {
-			swayc_t *child = container->children->items[i];
-			double percent = child->weight / total_weight;
-			sway_log(L_DEBUG, "Calculating arrangement for %p:%d (will receive %.2f of %d)", child, child->type, percent, width);
-			child->x = x + container->x;
-			child->y = y + container->y;
-			int w = width;
-			int h = height * percent;
-			arrange_windows(child, w, h);
-			y += h;
+			int *old_height = &((swayc_t *)container->children->items[i])->height;
+				if (container->children->length > 1) {
+					*old_height = height / (container->children->length - 1);
+				} else {
+					*old_height = height;
+				}
+			if (*old_height == 0) {
+			}
+			scale += *old_height;
+		}
+		//Resize
+		if (scale > 0.1) {
+			scale = height / scale;
+			sway_log(L_DEBUG, "Arranging %p vertically", container);
+			for (i = 0; i < container->children->length; ++i) {
+				swayc_t *child = container->children->items[i];
+				sway_log(L_DEBUG, "Calculating arrangement for %p:%d (will scale %d by %f)", child, child->type, height, scale);
+				child->x = x + container->x;
+				child->y = y + container->y;
+				arrange_windows(child, width, child->height * scale);
+				y += child->height;
+			}
 		}
 		break;
 	}
diff --git a/sway/log.c b/sway/log.c
index 44f6e366..49a74e02 100644
--- a/sway/log.c
+++ b/sway/log.c
@@ -114,7 +114,6 @@ static void container_log(const swayc_t *c) {
 	fprintf(stderr, "w:%d|h:%d|", c->width, c->height);
 	fprintf(stderr, "x:%d|y:%d|", c->x, c->y);
 	fprintf(stderr, "vis:%c|", c->visible?'t':'f');
-	fprintf(stderr, "wgt:%d|", c->weight);
 	fprintf(stderr, "name:%.16s|", c->name);
 	fprintf(stderr, "children:%d\n",c->children?c->children->length:0);
 }