From d2491d05fe17541a01bd7f3264e693fad616f2d9 Mon Sep 17 00:00:00 2001
From: Mikko Rasa <tdb@tdb.fi>
Date: Fri, 6 Sep 2019 00:08:08 +0300
Subject: [PATCH] Add a flag to make widgets in a LinearArrangement the same
 size

---
 source/column.cpp            |  1 +
 source/lineararrangement.cpp | 29 +++++++++++++++++++++++++++++
 source/lineararrangement.h   |  5 +++++
 source/row.cpp               |  1 +
 4 files changed, 36 insertions(+)

diff --git a/source/column.cpp b/source/column.cpp
index e7f7095..e90d334 100644
--- a/source/column.cpp
+++ b/source/column.cpp
@@ -9,6 +9,7 @@ Column::Column(Layout &l):
 
 void Column::finish_widget(Widget &wdg)
 {
+	LinearArrangement::finish_widget(wdg);
 	layout.set_gravity(wdg, -1, (gravity==BOTTOM ? -1 : 1));
 }
 
diff --git a/source/lineararrangement.cpp b/source/lineararrangement.cpp
index fb2e71c..5294252 100644
--- a/source/lineararrangement.cpp
+++ b/source/lineararrangement.cpp
@@ -11,9 +11,18 @@ LinearArrangement::LinearArrangement(Layout &l, Side p):
 	split_here(false),
 	gravity(opposite),
 	internal_aligned(false),
+	uniform(false),
+	uniform_ref(0),
 	next_spacing(-1)
 { }
 
+void LinearArrangement::set_uniform(bool u)
+{
+	uniform = u;
+	if(!uniform)
+		uniform_ref = 0;
+}
+
 void LinearArrangement::split()
 {
 	if(gravity==primary)
@@ -60,6 +69,20 @@ void LinearArrangement::process_widget(Widget &wdg, Side side, bool aligned)
 	}
 }
 
+void LinearArrangement::finish_widget(Widget &wdg)
+{
+	if(uniform)
+	{
+		if(!uniform_ref)
+			uniform_ref = &wdg;
+		else
+		{
+			Layout::ConstraintType ct = ((primary==LEFT || primary==RIGHT) ? Layout::COPY_WIDTH : Layout::COPY_HEIGHT);
+			layout.add_constraint(wdg, ct, *uniform_ref);
+		}
+	}
+}
+
 void LinearArrangement::finish_slot()
 {
 	internal_aligned = next.aligned;
@@ -79,6 +102,7 @@ LinearArrangement::Loader::Loader(LinearArrangement &c):
 	add("expand", &Loader::expand);
 	add("spacing", &Loader::spacing);
 	add("split", &Loader::split);
+	add("uniform", &Loader::uniform);
 }
 
 void LinearArrangement::Loader::expand()
@@ -96,5 +120,10 @@ void LinearArrangement::Loader::split()
 	obj.split();
 }
 
+void LinearArrangement::Loader::uniform(bool u)
+{
+	obj.set_uniform(u);
+}
+
 } // namespace GLtk
 } // namespace Msp
diff --git a/source/lineararrangement.h b/source/lineararrangement.h
index 4b149a4..ce49b34 100644
--- a/source/lineararrangement.h
+++ b/source/lineararrangement.h
@@ -18,6 +18,7 @@ public:
 		void expand();
 		void spacing(unsigned);
 		void split();
+		void uniform(bool);
 	};
 
 protected:
@@ -28,17 +29,21 @@ protected:
 	bool split_here;
 	Side gravity;
 	bool internal_aligned;
+	bool uniform;
+	Widget *uniform_ref;
 	int next_spacing;
 
 	LinearArrangement(Layout &, Side);
 
 public:
+	void set_uniform(bool);
 	void split();
 	void expand();
 	void spacing(unsigned);
 
 protected:
 	virtual void process_widget(Widget &, Side, bool);
+	virtual void finish_widget(Widget &);
 	virtual void finish_slot();
 };
 
diff --git a/source/row.cpp b/source/row.cpp
index 0188f4a..6a5e45b 100644
--- a/source/row.cpp
+++ b/source/row.cpp
@@ -9,6 +9,7 @@ Row::Row(Layout &l):
 
 void Row::finish_widget(Widget &wdg)
 {
+	LinearArrangement::finish_widget(wdg);
 	layout.set_gravity(wdg, (gravity==LEFT ? -1 : 1), 1);
 }
 
-- 
2.43.0