From 9eb2a246b23755bb428f47ada27092783495fcaf Mon Sep 17 00:00:00 2001
From: Alex Kotov <kotovalexarian@gmail.com>
Date: Thu, 18 Nov 2021 20:18:27 +0500
Subject: [PATCH] Add master area factor to unit

---
 src/unit.c | 39 ++++++++++++++++++++++++++++++++++++++-
 src/unit.h |  3 +++
 2 files changed, 41 insertions(+), 1 deletion(-)

diff --git a/src/unit.c b/src/unit.c
index dcfd398..c1c93a3 100644
--- a/src/unit.c
+++ b/src/unit.c
@@ -9,6 +9,7 @@ struct Unit {
 	UnitKind kind;
 	struct Unit *parent;
 	bool show_bar;
+	float master_area_factor;
 };
 
 Unit unit_new(const UnitKind kind, const Unit parent)
@@ -19,7 +20,9 @@ Unit unit_new(const UnitKind kind, const Unit parent)
 	memset(unit, 0, sizeof(struct Unit));
 	unit->kind = kind;
 	unit->parent = parent;
-	unit->show_bar = settings_get_show_bar_by_default();
+
+	unit->show_bar           = settings_get_show_bar_by_default();
+	unit->master_area_factor = settings_get_default_master_area_factor();
 
 	if (unit->kind == UNIT_GLOBAL) {
 		// TODO: maybe we should assert here
@@ -74,3 +77,37 @@ bool unit_toggle_show_bar(const Unit unit)
 		return settings_get_show_bar_by_default();
 	}
 }
+
+float unit_get_master_area_factor(const Unit unit)
+{
+	const UnitKind master_area_factor_per_unit =
+		settings_get_master_area_factor_per_unit();
+
+	if (unit->kind == master_area_factor_per_unit) {
+		return unit->master_area_factor;
+	} else if (unit->kind > master_area_factor_per_unit) {
+		return unit_get_master_area_factor(unit->parent);
+	} else {
+		// TODO: maybe we should assert here
+		return settings_get_default_master_area_factor();
+	}
+}
+
+float unit_inc_master_area_factor(const Unit unit, const float delta)
+{
+	const UnitKind master_area_factor_per_unit =
+		settings_get_master_area_factor_per_unit();
+
+	if (unit->kind == master_area_factor_per_unit) {
+		float new_master_area_factor = unit->master_area_factor + delta;
+		// TODO: DRY
+		if (new_master_area_factor < 0.05) new_master_area_factor = 0.05;
+		if (new_master_area_factor > 0.95) new_master_area_factor = 0.95;
+		return unit->master_area_factor = new_master_area_factor;
+	} else if (unit->kind > master_area_factor_per_unit) {
+		return unit_inc_master_area_factor(unit->parent, delta);
+	} else {
+		// TODO: maybe we should assert here
+		return settings_get_default_master_area_factor();
+	}
+}
diff --git a/src/unit.h b/src/unit.h
index 1edfc9b..9d24398 100644
--- a/src/unit.h
+++ b/src/unit.h
@@ -23,4 +23,7 @@ void unit_delete(Unit unit);
 bool unit_get_show_bar(Unit unit);
 bool unit_toggle_show_bar(Unit unit);
 
+float unit_get_master_area_factor(Unit unit);
+float unit_inc_master_area_factor(Unit unit, float delta);
+
 #endif // _UNIT_H