From 0a1bc3e9998185c7693c08a391899832792e005a Mon Sep 17 00:00:00 2001
From: Dimitris Panokostas <midwan@gmail.com>
Date: Sat, 9 Nov 2024 17:30:50 +0100
Subject: [PATCH] Fixed container would not draw child objects when draw was
 called on it

If we had a container with child objects, they would not be updated/drawn when the container's "draw" function was called.
---
 include/guisan/widgets/container.hpp |  1 +
 src/widgets/container.cpp            | 36 +++++++++++++++++++++++++---
 2 files changed, 34 insertions(+), 3 deletions(-)

diff --git a/include/guisan/widgets/container.hpp b/include/guisan/widgets/container.hpp
index a366849..dd84dfd 100644
--- a/include/guisan/widgets/container.hpp
+++ b/include/guisan/widgets/container.hpp
@@ -194,6 +194,7 @@ namespace gcn
 
         void draw(Graphics* graphics) override;
         Rectangle getChildrenArea() override;
+        void drawChildren(Graphics* graphics);
 
     protected:
         /**
diff --git a/src/widgets/container.cpp b/src/widgets/container.cpp
index 0a3ed3a..d97991f 100644
--- a/src/widgets/container.cpp
+++ b/src/widgets/container.cpp
@@ -67,9 +67,7 @@ namespace gcn
 {
 
     Container::~Container()
-    {
-
-    }
+    = default;
 
     void Container::draw(Graphics* graphics)
     {
@@ -78,6 +76,7 @@ namespace gcn
             graphics->setColor(getBaseColor());
             graphics->fillRectangle(Rectangle(0, 0, getWidth(), getHeight()));
         }
+        drawChildren(graphics);
     }
 
     void Container::setOpaque(bool opaque)
@@ -162,4 +161,35 @@ namespace gcn
     {
         return Rectangle(0, 0, getWidth(), getHeight());
     }
+
+    void Container::drawChildren(Graphics* graphics)
+    {
+        graphics->pushClipArea(getChildrenArea());
+
+        std::list<Widget*> children = getChildren();
+        std::list<Widget*>::iterator iter;
+        for (iter = children.begin(); iter != children.end(); ++iter)
+        {
+            if ((*iter)->isVisible())
+            {
+                // If the widget has a frame,
+                // draw it before drawing the widget
+                if ((*iter)->getFrameSize() > 0)
+                {
+                    Rectangle rec = (*iter)->getDimension();
+                    rec.x -= (*iter)->getFrameSize();
+                    rec.y -= (*iter)->getFrameSize();
+                    rec.width += 2 * (*iter)->getFrameSize();
+                    rec.height += 2 * (*iter)->getFrameSize();
+                    graphics->pushClipArea(rec);
+                    (*iter)->drawFrame(graphics);
+                    graphics->popClipArea();
+                }
+                graphics->pushClipArea((*iter)->getDimension());
+                (*iter)->draw(graphics);
+                graphics->popClipArea();
+            }
+        }
+        graphics->popClipArea();
+    }
 } // namespace gcn