From 917d35d6cbea488f07596d0403d0bef8d6413f8a Mon Sep 17 00:00:00 2001
From: Andrei Karas <akaras@inbox.ru>
Date: Wed, 27 May 2015 17:35:08 +0300
Subject: Improve a bit basiccontainer.

---
 src/gui/widgets/basiccontainer.cpp | 35 ++++++++++++++++-------------------
 src/gui/widgets/basiccontainer.h   |  3 ++-
 src/gui/widgets/scrollarea.cpp     |  2 +-
 src/gui/widgets/scrollarea.h       |  3 ++-
 src/gui/widgets/widget.h           |  2 +-
 5 files changed, 22 insertions(+), 23 deletions(-)

(limited to 'src/gui')

diff --git a/src/gui/widgets/basiccontainer.cpp b/src/gui/widgets/basiccontainer.cpp
index 96dfffef7..e8f29ff9b 100644
--- a/src/gui/widgets/basiccontainer.cpp
+++ b/src/gui/widgets/basiccontainer.cpp
@@ -382,38 +382,35 @@ void BasicContainer::logicChildren()
     BLOCK_END("BasicContainer::logicChildren")
 }
 
-void BasicContainer::showWidgetPart(Widget *const widget, Rect area)
+void BasicContainer::showWidgetPart(Widget *const widget, const Rect &area)
 {
     const Rect widgetArea = getChildrenArea();
 
     const int x = widget->mDimension.x;
     const int y = widget->mDimension.y;
-    area.x += x;
-    area.y += y;
-
-    if (area.x + area.width > widgetArea.width)
-        widget->setX(x - area.x - area.width + widgetArea.width);
-
-    if (area.y + area.height > widgetArea.height)
-        widget->setY(y - area.y - area.height + widgetArea.height);
-
-    if (area.x < 0)
-        widget->setX(x - area.x);
-
-    if (area.y < 0)
-        widget->setY(y - area.y);
+    const int ax = area.x + x;
+    const int ay = area.y + y;
+
+    if (ax < 0)
+        widget->setX(-area.x);
+    else if (ax + area.width > widgetArea.width)
+        widget->setX(widgetArea.width - area.x - area.width);
+
+    if (ay < 0)
+        widget->setY(-area.y);
+    else if (ay + area.height > widgetArea.height)
+        widget->setY(widgetArea.height - area.y - area.height);
 }
 
 void BasicContainer::setInternalFocusHandler(FocusHandler* focusHandler)
 {
     Widget::setInternalFocusHandler(focusHandler);
 
+    FocusHandler *handler = mInternalFocusHandler ?
+        mInternalFocusHandler : getFocusHandler();
     FOR_EACH (WidgetListConstIterator, iter, mWidgets)
     {
-        if (!mInternalFocusHandler)
-            (*iter)->setFocusHandler(getFocusHandler());
-        else
-            (*iter)->setFocusHandler(mInternalFocusHandler);
+        (*iter)->setFocusHandler(handler);
     }
 }
 
diff --git a/src/gui/widgets/basiccontainer.h b/src/gui/widgets/basiccontainer.h
index ecc79cba2..ec4a39115 100644
--- a/src/gui/widgets/basiccontainer.h
+++ b/src/gui/widgets/basiccontainer.h
@@ -105,7 +105,8 @@ class BasicContainer notfinal : public Widget,
           *               itself to be visible.
           * @param rectangle The rectangle to be visible.
           */
-        void showWidgetPart(Widget *const widget, Rect area) override;
+        void showWidgetPart(Widget *const widget,
+                            const Rect &area) override;
 
         // Inherited from Widget
 
diff --git a/src/gui/widgets/scrollarea.cpp b/src/gui/widgets/scrollarea.cpp
index 1eb5417e8..23b681907 100644
--- a/src/gui/widgets/scrollarea.cpp
+++ b/src/gui/widgets/scrollarea.cpp
@@ -1275,7 +1275,7 @@ void ScrollArea::setScrollbarWidth(const int width)
         mScrollbarWidth = width;
 }
 
-void ScrollArea::showWidgetPart(Widget *const widget, Rect area)
+void ScrollArea::showWidgetPart(Widget *const widget, const Rect &area)
 {
     const Widget *const content = getContent();
     if (widget != content)
diff --git a/src/gui/widgets/scrollarea.h b/src/gui/widgets/scrollarea.h
index d166f235c..deb24ff79 100644
--- a/src/gui/widgets/scrollarea.h
+++ b/src/gui/widgets/scrollarea.h
@@ -412,7 +412,8 @@ class ScrollArea final : public BasicContainer,
         int getDownButtonScrollAmount() const
         { return mDownButtonScrollAmount; }
 
-        void showWidgetPart(Widget *const widget, Rect area) override final;
+        void showWidgetPart(Widget *const widget,
+                            const Rect &area) override final;
 
         Rect getChildrenArea() override final;
 
diff --git a/src/gui/widgets/widget.h b/src/gui/widgets/widget.h
index 7c3134302..2c8c121e0 100644
--- a/src/gui/widgets/widget.h
+++ b/src/gui/widgets/widget.h
@@ -968,7 +968,7 @@ class Widget notfinal : public Widget2
           * @since 0.1.0
           */
         virtual void showWidgetPart(Widget *const widget A_UNUSED,
-                                    Rect area A_UNUSED)
+                                    const Rect &area A_UNUSED)
         { }
 
         /**
-- 
cgit v1.2.3-70-g09d2