IsMouseHoveringRect() added 'bool clip' parameter to disable clipping the rectangle with the current parameters (#316)

imgui.cpp

@@ -2704,14 +2704,15 @@ static ImGuiWindow* FindHoveredWindow(ImVec2 pos, bool excluding_childs)
 // Test if mouse cursor is hovering given rectangle
 // NB- Rectangle is clipped by our current clip setting
 // NB- Expand the rectangle to be generous on imprecise inputs systems (g.Style.TouchExtraPadding)
-bool ImGui::IsMouseHoveringRect(const ImVec2& pos_min, const ImVec2& pos_max)
+bool ImGui::IsMouseHoveringRect(const ImVec2& pos_min, const ImVec2& pos_max, bool clip)
 {
     ImGuiState& g = *GImGui;
     ImGuiWindow* window = GetCurrentWindowRead();
 
     // Clip
     ImRect rect_clipped(pos_min, pos_max);
-    rect_clipped.Clip(window->ClipRect);
+    if (clip)
+        rect_clipped.Clip(window->ClipRect);
 
     // Expand for touch input
     const ImRect rect_for_touch(rect_clipped.Min - g.Style.TouchExtraPadding, rect_clipped.Max + g.Style.TouchExtraPadding);

imgui.h

@@ -404,7 +404,7 @@ namespace ImGui
     IMGUI_API bool          IsMouseReleased(int button);                                        // did mouse button released (went from Down to !Down)
     IMGUI_API bool          IsMouseHoveringWindow();                                            // is mouse hovering current window ("window" in API names always refer to current window). disregarding of any consideration of being blocked by a popup. (unlike IsWindowHovered() this will return true even if the window is blocked because of a popup)
     IMGUI_API bool          IsMouseHoveringAnyWindow();                                         // is mouse hovering any visible window
-    IMGUI_API bool          IsMouseHoveringRect(const ImVec2& pos_min, const ImVec2& pos_max);  // is mouse hovering given bounding rect (in screen space). clipped by current clipping settings. disregarding of consideration of focus/window ordering/blocked by a popup.
+    IMGUI_API bool          IsMouseHoveringRect(const ImVec2& pos_min, const ImVec2& pos_max, bool clip = true);  // is mouse hovering given bounding rect (in screen space). clipped by current clipping settings. disregarding of consideration of focus/window ordering/blocked by a popup.
     IMGUI_API bool          IsMouseDragging(int button = 0, float lock_threshold = -1.0f);      // is mouse dragging. if lock_threshold < -1.0f uses io.MouseDraggingThreshold
     IMGUI_API ImVec2        GetMousePos();                                                      // shortcut to ImGui::GetIO().MousePos provided by user, to be consistent with other calls
     IMGUI_API ImVec2        GetMousePosOnOpeningCurrentPopup();                                 // retrieve backup of mouse positioning at the time of opening popup we have BeginPopup() into