Documentations for Github users. Metrics: Fixed display of NavRectRel, added display of ParentWindow.

.github/CONTRIBUTING.md

@@ -2,7 +2,7 @@
 
 Hello! 
 
-You may use the Issue Tracker to submit bug reports, feature requests or suggestions. You may ask for help or advice as well. However please read this wall of text before doing so. The amount of incomplete or ambiguous requests occasionally becomes overwhelming, so please do your best to clarify your request. Thank you!
+You may use the Issue Tracker to submit bug reports, feature requests or suggestions. You may ask for help or advice as well. However please read this wall of text before doing so. The amount of incomplete or ambiguous requests due to people not following those guidelines is often overwhelming. Please do your best to clarify your request. Thank you!
 
 **Prerequisites for new users of dear imgui:**
 - Please read the FAQ in imgui.cpp.
@@ -16,8 +16,8 @@ You may use the Issue Tracker to submit bug reports, feature requests or suggest
 - Please provide your imgui version number.
 - If you are discussing an assert or a crash, please provide a debugger callstack. 
 - Please state if you have made substantial modifications to your copy of imgui. 
-- When discussing issues related to rendering or inputs, please state which OS you are using, and if you are using a vanilla copy of one of the back end (imgui_impl_xxx files), or a modified one, or if you built your own.
-- Try to provide a Minimal, Complete and Verifiable Example ([MCVE](https://stackoverflow.com/help/mcve)) to demonstrate your problem. An ideal submission includes a small piece of code that anyone can paste in one of the examples/ application to understand and reproduce it. Narrowing your problem to its shortest and purest form is often the easiest way to understand it. Often while creating the MCVE you will end up solving the problem!
+- When discussing issues related to rendering or inputs, please state the OS/back-end/renderer you are using. Please state if you are using a vanilla copy of one of the back-end (imgui_impl_xxx files), or a modified one, or if you built your own.
+- Please provide a Minimal, Complete and Verifiable Example ([MCVE](https://stackoverflow.com/help/mcve)) to demonstrate your problem. An ideal submission includes a small piece of code that anyone can paste in one of the examples/ application (e.g. in main.cpp or imgui_demo.cpp) to understand and reproduce it. Narrowing your problem to its shortest and purest form is the easiest way to understand it. Please test your shortened code to ensure it actually exhibit the problem. Often while creating the MCVE you will end up solving the problem! Many questions that are missing a standalone verifiable example are missing the actual cause of their issue in the description, which ends up wasting everyone's time.
 - Try to attach screenshots to clarify the context. They often convey useful information that are omitted by the description. You can drag pictures/files here (prefer github attachments over 3rd party hosting).
 - When requesting a new feature, please describe the usage context (how you intend to use it, why you need it, etc.).
 - Due to frequent abuse of this service from a certain category of users, if your GitHub account is anonymous and was created five minutes ago please understand that your post will receive more scrutiny and less patience for incomplete questions.

.github/issue_template.md

@@ -1,12 +1,30 @@
 You may use the Issue Tracker to ask for help and submit bug reports, feature requests or suggestions. 
+
 PLEASE CAREFULLY READ THIS DOCUMENT before doing so:
 [CONTRIBUTING.md](https://github.com/ocornut/imgui/blob/master/.github/CONTRIBUTING.md).
 
-You can include code snippets using `Begin()` for short in-line snippets, or:
-```cpp
-ImGui::Begin("Hello");
-ImGui::ThisIsMoreCode();
-```
-For multiline snippets.
+SELECT "PREVIEW CHANGES" TO TURN THE URL ABOVE INTO A CLICKABLE LINK.
+
+(Delete everything above this section before submitting your issue. Please read the CONTRIBUTING.md file!)
+
+----
+
+- Version/Branch of Dear ImGui:
+
+XXX
+
+- Back-end/Renderer/OS: _(if the question is related to inputs or rendering, otherwise delete this section)_
+
+XXX
+
+- My Issue/Question: _(please provide context)_
+
+- Standalone, minimal, complete and verifiable example: _(see CONTRIBUTING.md)_
+```
+ImGui::Begin("Example Bug");
+MoreCodeToExplainMyIssue();
+ImGui::End();
+```
+
+- Screenshots/Video _(you can drag files here)_
 
-(Clear this form before submitting your issue. Please read the CONTRIBUTING.md file!)

imgui.cpp

@@ -13313,11 +13313,12 @@ void ImGui::ShowMetricsWindow(bool* p_open)
                 ImGui::BulletText("Active: %d, WriteAccessed: %d", window->Active, window->WriteAccessed);
                 ImGui::BulletText("NavLastIds: 0x%08X,0x%08X, NavLayerActiveMask: %X", window->NavLastIds[0], window->NavLastIds[1], window->DC.NavLayerActiveMask);
                 ImGui::BulletText("NavLastChildNavWindow: %s", window->NavLastChildNavWindow ? window->NavLastChildNavWindow->Name : "NULL");
-                if (window->NavRectRel[0].IsInverted())
+                if (!window->NavRectRel[0].IsInverted())
                     ImGui::BulletText("NavRectRel[0]: (%.1f,%.1f)(%.1f,%.1f)", window->NavRectRel[0].Min.x, window->NavRectRel[0].Min.y, window->NavRectRel[0].Max.x, window->NavRectRel[0].Max.y);
                 else
                     ImGui::BulletText("NavRectRel[0]: <None>");
                 if (window->RootWindow != window) NodeWindow(window->RootWindow, "RootWindow");
+                if (window->ParentWindow != NULL) NodeWindow(window->ParentWindow, "ParentWindow");
                 if (window->DC.ChildWindows.Size > 0) NodeWindows(window->DC.ChildWindows, "ChildWindows");
                 if (window->ColumnsStorage.Size > 0 && ImGui::TreeNode("Columns", "Columns sets (%d)", window->ColumnsStorage.Size))
                 {