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[libs/gltk.git] / source / geometry.cpp

diff --git a/source/geometry.cpp b/source/geometry.cpp
index 81efcd05bad2e69d22325eb3e7df851f638d3644..584a1aac55d934185e7bc68e793329a11d935a68 100644 (file)
--- a/source/geometry.cpp
+++ b/source/geometry.cpp
@@ -15,6 +15,11 @@ bool Geometry::is_inside(int x_, int y_) const
        return (x_>=x && x_<x+static_cast<int>(w) && y_>=y && y_<y+static_cast<int>(h));
 }
 
+bool Geometry::is_inside_relative(int x_, int y_) const
+{
+       return (x_>=0 && x_<static_cast<int>(w) && y_>=0 && y_<static_cast<int>(h));
+}
+
 
 Sides::Sides():
        top(0),
@@ -36,14 +41,36 @@ Sides::Loader::Loader(Sides &s):
 
 void Alignment::apply(Geometry &geom, const Geometry &parent) const
 {
-       geom.x+=static_cast<int>((parent.w-geom.w)*x);
-       geom.y+=static_cast<int>((parent.h-geom.h)*y);
+       if(parent.w>geom.w)
+       {
+               geom.w+=static_cast<unsigned>((parent.w-geom.w)*w);
+               geom.x+=static_cast<int>((parent.w-geom.w)*x);
+       }
+       if(parent.h>geom.h)
+       {
+               geom.h+=static_cast<unsigned>((parent.h-geom.h)*h);
+               geom.y+=static_cast<int>((parent.h-geom.h)*y);
+       }
 }
 
 void Alignment::apply(Geometry &geom, const Geometry &parent, const Sides &margin) const
 {
-       geom.x+=static_cast<int>(margin.left+(parent.w-margin.left-margin.right-geom.w)*x);
-       geom.y+=static_cast<int>(margin.bottom+(parent.h-margin.bottom-margin.top-geom.h)*y);
+       unsigned pw=parent.w-margin.left-margin.right;
+       unsigned ph=parent.h-margin.bottom-margin.top;
+
+       geom.x+=margin.left;
+       geom.y+=margin.bottom;
+
+       if(parent.w>geom.w)
+       {
+               geom.w+=static_cast<unsigned>((pw-geom.w)*w);
+               geom.x+=static_cast<int>((pw-geom.w)*x);
+       }
+       if(parent.h>geom.h)
+       {
+               geom.h+=static_cast<unsigned>((ph-geom.h)*h);
+               geom.y+=static_cast<int>((ph-geom.h)*y);
+       }
 }
 
 } // namespace GLtk