Use Rectangle in NanoWidget::textBounds

dgl/NanoWidget.hpp

@@ -709,12 +709,11 @@ protected:
     void textBox(float x, float y, float breakRowWidth, const char* string, const char* end);
 
    /**
-      Measures the specified text string. Parameter bounds should be a pointer to float[4],
-      if the bounding box of the text should be returned. The bounds value are [xmin,ymin, xmax,ymax]
+      Measures the specified text string. The bounds value are [xmin,ymin, xmax,ymax].
       Returns the horizontal advance of the measured text (i.e. where the next character should drawn).
       Measured values are returned in local coordinate space.
     */
-    float textBounds(float x, float y, const char* string, const char* end, float* bounds);
+    float textBounds(float x, float y, const char* string, const char* end, Rectangle<float>& bounds);
 
    /**
       Measures the specified multi-text string. Parameter bounds should be a pointer to float[4],

dgl/src/NanoWidget.cpp

@@ -544,9 +544,12 @@ void NanoWidget::textBox(float x, float y, float breakRowWidth, const char* stri
     nvgTextBox(fContext, x, y, breakRowWidth, string, end);
 }
 
-float NanoWidget::textBounds(float x, float y, const char* string, const char* end, float* bounds)
+float NanoWidget::textBounds(float x, float y, const char* string, const char* end, Rectangle<float>& bounds)
 {
-    return nvgTextBounds(fContext, x, y, string, end, bounds);
+    float b[4];
+    const float ret = nvgTextBounds(fContext, x, y, string, end, b);
+    bounds = Rectangle<float>(b[0], b[1], b[2], b[3]);
+    return ret;
 }
 
 void NanoWidget::textBoxBounds(float x, float y, float breakRowWidth, const char* string, const char* end, float* bounds)