Renamed IsRectClipped to IsRectVisible for consistency. Note that return value is opposite! Kept inline redirection function (will obsolete)

imgui.cpp

@@ -136,6 +136,7 @@
  Occasionally introducing changes that are breaking the API. The breakage are generally minor and easy to fix.
  Here is a change-log of API breaking changes, if you are using one of the functions listed, expect to have to fix some code.
  
+ - 2015/05/31 (1.39) - renamed IsRectClipped to IsRectVisible for consistency. Note that return value is opposite! Kept inline redirection function (will obsolete).
  - 2015/05/27 (1.39) - removed the third 'repeat_if_held' parameter from Button() - sorry! it was rarely used and inconsistent. Use PushButtonRepeat(true) / PopButtonRepeat() to enable repeat on desired buttons.
  - 2015/05/11 (1.39) - changed BeginPopup() API, takes a string identifier instead of a bool. ImGui needs to manage the open/closed state of popups. Call OpenPopup() to actually set the "opened" state of a popup. BeginPopup() returns true if the popup is opened.
  - 2015/05/03 (1.39) - removed style.AutoFitPadding, using style.WindowPadding makes more sense (the default values were already the same).
@@ -8042,10 +8043,11 @@ static bool IsClippedEx(const ImRect& bb, const ImGuiID* id, bool clip_even_when
     return false;
 }
 
-bool ImGui::IsRectClipped(const ImVec2& size)
+bool ImGui::IsRectVisible(const ImVec2& size)
 {
     ImGuiWindow* window = GetCurrentWindow();
-    return IsClippedEx(ImRect(window->DC.CursorPos, window->DC.CursorPos + size), NULL, true);
+    ImRect r(window->ClipRectStack.back());
+    return r.Overlaps(ImRect(window->DC.CursorPos, window->DC.CursorPos + size));
 }
 
 // Declare item bounding box for clipping and interaction.

imgui.h

@@ -344,9 +344,9 @@ namespace ImGui
     IMGUI_API ImVec2        GetItemRectMax();                                                   // "
     IMGUI_API ImVec2        GetItemRectSize();                                                  // "
     IMGUI_API bool          IsWindowFocused();                                                  // is current window focused (differentiate child windows from each others)
-    IMGUI_API bool          IsRootWindowFocused();                                              // is current root window focused
+    IMGUI_API bool          IsRootWindowFocused();                                              // is current root window focused (top parent window in case of child windows)
     IMGUI_API bool          IsRootWindowOrAnyChildFocused();                                    // is current root window or any of its child (including current window) focused
-    IMGUI_API bool          IsRectClipped(const ImVec2& size);                                  // test if rectangle of given size starting from cursor pos is out of clipping region. to perform coarse clipping on user's side (as an optimization)
+    IMGUI_API bool          IsRectVisible(const ImVec2& size);                                  // test if rectangle of given size starting from cursor pos is visible (not clipped). to perform coarse clipping on user's side (as an optimization)
     IMGUI_API bool          IsKeyDown(int key_index);                                           // key_index into the keys_down[512] array, imgui doesn't know the semantic of each entry
     IMGUI_API bool          IsKeyPressed(int key_index, bool repeat = true);                    // "
     IMGUI_API bool          IsMouseDown(int button);
@@ -392,7 +392,8 @@ namespace ImGui
     static inline bool      GetWindowIsFocused() { return ImGui::IsWindowFocused(); }   // OBSOLETE
     static inline ImVec2    GetItemBoxMin() { return GetItemRectMin(); }    // OBSOLETE
     static inline ImVec2    GetItemBoxMax() { return GetItemRectMax(); }    // OBSOLETE
-    static inline bool      IsClipped(const ImVec2& size) { return IsRectClipped(size); }   // OBSOLETE
+    static inline bool      IsClipped(const ImVec2& size) { return !IsRectVisible(size); }   // OBSOLETE
+    static inline bool      IsRectClipped(const ImVec2& size) { return !IsRectVisible(size); }   // OBSOLETE
     static inline bool      IsMouseHoveringBox(const ImVec2& rect_min, const ImVec2& rect_max) { return IsMouseHoveringRect(rect_min, rect_max); }  // OBSOLETE
 
 } // namespace ImGui