added Size2Test.cpp

CMakeLists.txt

@@ -57,3 +57,6 @@ cm_example_project(RuntimeAssetManagerTest)
 
 add_executable(DistributionChart2D DistributionChart2D.cpp BitmapFont.cpp BitmapFont.h)
 cm_example_project(DistributionChart2D)
+
+add_executable(Size2Test Size2Test.cpp)
+cm_example_project(Size2Test)

Size2Test.cpp

@@ -0,0 +1,34 @@
+#include<hgl/type/Size2.h>
+#include<iostream>
+
+using namespace hgl;
+using namespace std;
+
+Size2i si_screen,si_canvas,
+        si_finish,si_gap;
+
+void output(const char *str,float scale)
+{
+    cout<<endl<<str<<" scale "<<scale<<endl;
+
+    si_finish=si_canvas*scale;
+
+    cout<<"    finish size: "<<si_finish.width<<","<<si_finish.height<<endl;
+
+    //si_gap=(si_finish-si_screen)/2;
+    si_gap=(si_canvas*scale-si_screen)/2;       //写这行而不是用上一行，是为了验证操作符重载的正确性
+
+    cout<<"    gap size: "<<si_gap.width<<","<<si_gap.height<<endl;
+}
+
+void main()
+{
+    si_screen.Set(1920,1200);
+    si_canvas.Set(1280,720);
+
+    cout<<"screen size: "<<si_screen.width<<","<<si_screen.height<<endl;
+    cout<<"canvas size: "<<si_canvas.width<<","<<si_canvas.height<<endl;
+
+    output("min",si_screen.alcScale(si_canvas,false));
+    output("max",si_screen.alcScale(si_canvas,true));
+}