Merge branch 'master' into viewport

# Conflicts:
#	imgui.cpp
#	imgui.h

docs/CHANGELOG.txt

@@ -53,6 +53,12 @@ Other Changes:
 - Window: Resizing from edges (with io.ConfigResizeWindowsFromEdges Beta flag) extends the hit region
   of root floating windows outside the window, making it easier to resize windows. Resize grips are also
   extended accordingly so there are no discontinuity when hovering between borders and corners. (#1495, #822)
+- Window: Added ImGuiWindowFlags_NoBackground flag to avoid rendering window background. This is mostly to allow
+  the creation of new flag combinations, as we could already use SetNextWindowBgAlpha(0.0f). (#1660) [@biojppm, @ocornut]
+- Window: Added ImGuiWindowFlags_NoDecoration helper flag which is essentially NoTitleBar+NoResize+NoScrollbar+NoCollapse.
+- Window: Added ImGuiWindowFlags_NoMouseInputs which is basically the old ImGuiWindowFlags_NoInputs (essentially
+  we have renamed ImGuiWindowFlags_NoInputs to ImGuiWindowFlags_NoMouseInputs). Made the new ImGuiWindowFlags_NoInputs
+  encompass both NoMouseInputs+NoNav, which is consistent with its description. (#1660, #787)
 - Window, Inputs: Fixed resizing from edges when io.MousePos is not pixel-rounded by rounding mouse position input. (#2110)
 - BeginChild(): Fixed BeginChild(const char*, ...) variation erroneously not applying the ID stack
   to the provided string to uniquely identify the child window. This was undoing an intentional change

docs/README.md

@@ -113,11 +113,11 @@ Languages: (third-party bindings)
 - C#/.Net: [ImGui.NET](https://github.com/mellinoe/ImGui.NET)
 - ChaiScript: [imgui-chaiscript](https://github.com/JuJuBoSc/imgui-chaiscript)
 - D: [DerelictImgui](https://github.com/Extrawurst/DerelictImgui)
-- Go: [go-imgui](https://github.com/Armored-Dragon/go-imgui)
+- Go: [imgui-go](https://github.com/inkyblackness/imgui-go) or [go-imgui](https://github.com/Armored-Dragon/go-imgui)
 - Haxe/hxcpp: [linc_imgui](https://github.com/Aidan63/linc_imgui)
 - Java: [jimgui](https://github.com/ice1000/jimgui)
 - JavaScript: [imgui-js](https://github.com/flyover/imgui-js)
-- Lua: [imgui_lua_bindings](https://github.com/patrickriordan/imgui_lua_bindings) or [lua-ffi-bindings](https://github.com/thenumbernine/lua-ffi-bindings)
+- Lua: [LuaJIT-ImGui](https://github.com/sonoro1234/LuaJIT-ImGui), [imgui_lua_bindings](https://github.com/patrickriordan/imgui_lua_bindings) or [lua-ffi-bindings](https://github.com/thenumbernine/lua-ffi-bindings)
 - Odin: [odin-dear_imgui](https://github.com/ThisDrunkDane/odin-dear_imgui)
 - Pascal: [imgui-pas](https://github.com/dpethes/imgui-pas)
 - PureBasic: [pb-cimgui](https://github.com/hippyau/pb-cimgui)

examples/example_apple_metal/example_apple_metal.xcodeproj/project.pbxproj

@@ -3,7 +3,7 @@
 	archiveVersion = 1;
 	classes = {
 	};
-	objectVersion = 50;
+	objectVersion = 48;
 	objects = {
 
 /* Begin PBXBuildFile section */

examples/example_apple_opengl2/example_apple_opengl2.xcodeproj/project.pbxproj

@@ -3,7 +3,7 @@
 	archiveVersion = 1;
 	classes = {
 	};
-	objectVersion = 50;
+	objectVersion = 48;
 	objects = {
 
 /* Begin PBXBuildFile section */

imgui.cpp

@@ -3110,9 +3110,9 @@ void ImGui::UpdateMouseWheel()
     // If a child window has the ImGuiWindowFlags_NoScrollWithMouse flag, we give a chance to scroll its parent (unless either ImGuiWindowFlags_NoInputs or ImGuiWindowFlags_NoScrollbar are also set).
     ImGuiWindow* window = g.HoveredWindow;
     ImGuiWindow* scroll_window = window;
-    while ((scroll_window->Flags & ImGuiWindowFlags_ChildWindow) && (scroll_window->Flags & ImGuiWindowFlags_NoScrollWithMouse) && !(scroll_window->Flags & ImGuiWindowFlags_NoScrollbar) && !(scroll_window->Flags & ImGuiWindowFlags_NoInputs) && scroll_window->ParentWindow)
+    while ((scroll_window->Flags & ImGuiWindowFlags_ChildWindow) && (scroll_window->Flags & ImGuiWindowFlags_NoScrollWithMouse) && !(scroll_window->Flags & ImGuiWindowFlags_NoScrollbar) && !(scroll_window->Flags & ImGuiWindowFlags_NoMouseInputs) && scroll_window->ParentWindow)
         scroll_window = scroll_window->ParentWindow;
-    const bool scroll_allowed = !(scroll_window->Flags & ImGuiWindowFlags_NoScrollWithMouse) && !(scroll_window->Flags & ImGuiWindowFlags_NoInputs);
+    const bool scroll_allowed = !(scroll_window->Flags & ImGuiWindowFlags_NoScrollWithMouse) && !(scroll_window->Flags & ImGuiWindowFlags_NoMouseInputs);
 
     if (g.IO.MouseWheel != 0.0f)
     {
@@ -3938,7 +3938,7 @@ static void FindHoveredWindow()
 
     ImGuiWindow* hovered_window = NULL;
     ImGuiWindow* hovered_window_ignoring_moving_window = NULL;
-    if (g.MovingWindow && !(g.MovingWindow->Flags & ImGuiWindowFlags_NoInputs))
+    if (g.MovingWindow && !(g.MovingWindow->Flags & ImGuiWindowFlags_NoMouseInputs))
         hovered_window = g.MovingWindow;
 
     ImVec2 padding_regular = g.Style.TouchExtraPadding;
@@ -3948,7 +3948,7 @@ static void FindHoveredWindow()
         ImGuiWindow* window = g.Windows[i];
         if (!window->Active || window->Hidden)
             continue;
-        if (window->Flags & ImGuiWindowFlags_NoInputs)
+        if (window->Flags & ImGuiWindowFlags_NoMouseInputs)
             continue;
         IM_ASSERT(window->Viewport);
         if (window->Viewport != g.MouseViewport)
@@ -4802,7 +4802,7 @@ bool ImGui::Begin(const char* name, bool* p_open, ImGuiWindowFlags flags)
     }
 
     // Automatically disable manual moving/resizing when NoInputs is set
-    if (flags & ImGuiWindowFlags_NoInputs)
+    if ((flags & ImGuiWindowFlags_NoInputs) == ImGuiWindowFlags_NoInputs)
         flags |= ImGuiWindowFlags_NoMove | ImGuiWindowFlags_NoResize;
 
     if (flags & ImGuiWindowFlags_NavFlattened)
@@ -5216,15 +5216,19 @@ bool ImGui::Begin(const char* name, bool* p_open, ImGuiWindowFlags flags)
         else
         {
             // Window background
-            ImU32 bg_col = GetColorU32(GetWindowBgColorIdxFromFlags(flags));
-            if (g.NextWindowData.BgAlphaCond != 0)
-                bg_col = (bg_col & ~IM_COL32_A_MASK) | (IM_F32_TO_INT8_SAT(g.NextWindowData.BgAlphaVal) << IM_COL32_A_SHIFT);
-            if (window->ViewportOwned)
+            if (!(flags & ImGuiWindowFlags_NoBackground))
             {
-                //window->Viewport->Alpha = ((bg_col & IM_COL32_A_MASK) >> IM_COL32_A_SHIFT) / 255.0f;
-                bg_col = (bg_col | IM_COL32_A_MASK);
+                ImU32 bg_col = GetColorU32(GetWindowBgColorIdxFromFlags(flags));
+                if (g.NextWindowData.BgAlphaCond != 0)
+                    bg_col = (bg_col & ~IM_COL32_A_MASK) | (IM_F32_TO_INT8_SAT(g.NextWindowData.BgAlphaVal) << IM_COL32_A_SHIFT);
+                if (window->ViewportOwned)
+                {
+                    //window->Viewport->Alpha = ((bg_col & IM_COL32_A_MASK) >> IM_COL32_A_SHIFT) / 255.0f;
+                    bg_col = (bg_col | IM_COL32_A_MASK);
+                }
+                window->DrawList->AddRectFilled(window->Pos + ImVec2(0, window->TitleBarHeight()), window->Pos + window->Size, bg_col, window_rounding, (flags & ImGuiWindowFlags_NoTitleBar) ? ImDrawCornerFlags_All : ImDrawCornerFlags_Bot);
             }
-            window->DrawList->AddRectFilled(window->Pos + ImVec2(0, window->TitleBarHeight()), window->Pos + window->Size, bg_col, window_rounding, (flags & ImGuiWindowFlags_NoTitleBar) ? ImDrawCornerFlags_All : ImDrawCornerFlags_Bot);
+            g.NextWindowData.BgAlphaCond = 0;
 
             // Title bar
             ImU32 title_bar_col = GetColorU32(window->Collapsed ? ImGuiCol_TitleBgCollapsed : title_bar_is_highlight ? ImGuiCol_TitleBgActive : ImGuiCol_TitleBg);
@@ -5262,7 +5266,7 @@ bool ImGui::Begin(const char* name, bool* p_open, ImGuiWindowFlags flags)
             }
 
             // Borders
-            if (window_border_size > 0.0f)
+            if (window_border_size > 0.0f && !(flags & ImGuiWindowFlags_NoBackground))
                 window->DrawList->AddRect(window->Pos, window->Pos + window->Size, GetColorU32(ImGuiCol_Border), window_rounding, ImDrawCornerFlags_All, window_border_size);
             if (border_held != -1)
             {
@@ -6690,7 +6694,7 @@ void ImGui::BeginTooltipEx(ImGuiWindowFlags extra_flags, bool override_previous_
                 window->HiddenFramesRegular = 1;
                 ImFormatString(window_name, IM_ARRAYSIZE(window_name), "##Tooltip_%02d", ++g.TooltipOverrideCount);
             }
-    ImGuiWindowFlags flags = ImGuiWindowFlags_Tooltip|ImGuiWindowFlags_NoInputs|ImGuiWindowFlags_NoTitleBar|ImGuiWindowFlags_NoMove|ImGuiWindowFlags_NoResize|ImGuiWindowFlags_NoSavedSettings|ImGuiWindowFlags_AlwaysAutoResize|ImGuiWindowFlags_NoNav;
+    ImGuiWindowFlags flags = ImGuiWindowFlags_Tooltip|ImGuiWindowFlags_NoInputs|ImGuiWindowFlags_NoTitleBar|ImGuiWindowFlags_NoMove|ImGuiWindowFlags_NoResize|ImGuiWindowFlags_NoSavedSettings|ImGuiWindowFlags_AlwaysAutoResize;
     Begin(window_name, NULL, flags | extra_flags);
 }
 
@@ -8727,7 +8731,7 @@ void ImGui::NavUpdateWindowingList()
     SetNextWindowSizeConstraints(ImVec2(viewport->Size.x * 0.20f, viewport->Size.y * 0.20f), ImVec2(FLT_MAX, FLT_MAX));
     SetNextWindowPos(viewport->Pos + viewport->Size * 0.5f, ImGuiCond_Always, ImVec2(0.5f, 0.5f));
     PushStyleVar(ImGuiStyleVar_WindowPadding, g.Style.WindowPadding * 2.0f);
-    Begin("###NavWindowingList", NULL, ImGuiWindowFlags_NoTitleBar | ImGuiWindowFlags_NoFocusOnAppearing | ImGuiWindowFlags_NoNav | ImGuiWindowFlags_NoResize | ImGuiWindowFlags_NoMove | ImGuiWindowFlags_NoInputs | ImGuiWindowFlags_AlwaysAutoResize | ImGuiWindowFlags_NoSavedSettings);
+    Begin("###NavWindowingList", NULL, ImGuiWindowFlags_NoTitleBar | ImGuiWindowFlags_NoFocusOnAppearing | ImGuiWindowFlags_NoResize | ImGuiWindowFlags_NoMove | ImGuiWindowFlags_NoInputs | ImGuiWindowFlags_AlwaysAutoResize | ImGuiWindowFlags_NoSavedSettings);
     for (int n = g.WindowsFocusOrder.Size - 1; n >= 0; n--)
     {
         ImGuiWindow* window = g.WindowsFocusOrder[n];
@@ -10003,10 +10007,10 @@ void ImGui::ShowMetricsWindow(bool* p_open)
             ImGuiWindowFlags flags = window->Flags;
             NodeDrawList(window, window->Viewport, window->DrawList, "DrawList");
             ImGui::BulletText("Pos: (%.1f,%.1f), Size: (%.1f,%.1f), SizeContents (%.1f,%.1f)", window->Pos.x, window->Pos.y, window->Size.x, window->Size.y, window->SizeContents.x, window->SizeContents.y);
-            ImGui::BulletText("Flags: 0x%08X (%s%s%s%s%s%s%s%s..)", flags,
-                (flags & ImGuiWindowFlags_ChildWindow) ? "Child " : "", (flags & ImGuiWindowFlags_Tooltip)   ? "Tooltip "   : "", (flags & ImGuiWindowFlags_Popup) ? "Popup " : "",
-                (flags & ImGuiWindowFlags_Modal)       ? "Modal " : "", (flags & ImGuiWindowFlags_ChildMenu) ? "ChildMenu " : "", (flags & ImGuiWindowFlags_NoSavedSettings) ? "NoSavedSettings " : "",
-                (flags & ImGuiWindowFlags_NoInputs)    ? "NoInputs":"", (flags & ImGuiWindowFlags_AlwaysAutoResize) ? "AlwaysAutoResize" : "");
+            ImGui::BulletText("Flags: 0x%08X (%s%s%s%s%s%s%s%s%s..)", flags,
+                (flags & ImGuiWindowFlags_ChildWindow)  ? "Child " : "",      (flags & ImGuiWindowFlags_Tooltip)     ? "Tooltip "   : "",  (flags & ImGuiWindowFlags_Popup) ? "Popup " : "",
+                (flags & ImGuiWindowFlags_Modal)        ? "Modal " : "",      (flags & ImGuiWindowFlags_ChildMenu)   ? "ChildMenu " : "",  (flags & ImGuiWindowFlags_NoSavedSettings) ? "NoSavedSettings " : "",
+                (flags & ImGuiWindowFlags_NoMouseInputs)? "NoMouseInputs":"", (flags & ImGuiWindowFlags_NoNavInputs) ? "NoNavInputs" : "", (flags & ImGuiWindowFlags_AlwaysAutoResize) ? "AlwaysAutoResize" : "");
             ImGui::BulletText("Scroll: (%.2f/%.2f,%.2f/%.2f)", window->Scroll.x, GetWindowScrollMaxX(window), window->Scroll.y, GetWindowScrollMaxY(window));
             ImGui::BulletText("Active: %d/%d, WriteAccessed: %d, BeginOrderWithinContext: %d", window->Active, window->WasActive, window->WriteAccessed, (window->Active || window->WasActive) ? window->BeginOrderWithinContext : -1);
             ImGui::BulletText("Appearing: %d, Hidden: %d (Reg %d Resize %d), SkipItems: %d", window->Appearing, window->Hidden, window->HiddenFramesRegular, window->HiddenFramesForResize, window->SkipItems);

imgui.h

@@ -237,7 +237,7 @@ namespace ImGui
     IMGUI_API void          SetNextWindowContentSize(const ImVec2& size);                               // set next window content size (~ enforce the range of scrollbars). not including window decorations (title bar, menu bar, etc.). set an axis to 0.0f to leave it automatic. call before Begin()
     IMGUI_API void          SetNextWindowCollapsed(bool collapsed, ImGuiCond cond = 0);                 // set next window collapsed state. call before Begin()
     IMGUI_API void          SetNextWindowFocus();                                                       // set next window to be focused / front-most. call before Begin()
-    IMGUI_API void          SetNextWindowBgAlpha(float alpha);                                          // set next window background color alpha. helper to easily modify ImGuiCol_WindowBg/ChildBg/PopupBg.
+    IMGUI_API void          SetNextWindowBgAlpha(float alpha);                                          // set next window background color alpha. helper to easily modify ImGuiCol_WindowBg/ChildBg/PopupBg. you may also use ImGuiWindowFlags_NoBackground.
     IMGUI_API void          SetNextWindowViewport(ImGuiID viewport_id);                                 // set next window viewport
     IMGUI_API void          SetWindowPos(const ImVec2& pos, ImGuiCond cond = 0);                        // (not recommended) set current window position - call within Begin()/End(). prefer using SetNextWindowPos(), as this may incur tearing and side-effects.
     IMGUI_API void          SetWindowSize(const ImVec2& size, ImGuiCond cond = 0);                      // (not recommended) set current window size - call within Begin()/End(). set to ImVec2(0,0) to force an auto-fit. prefer using SetNextWindowSize(), as this may incur tearing and minor side-effects.
@@ -493,7 +493,7 @@ namespace ImGui
     IMGUI_API bool          BeginPopupContextVoid(const char* str_id = NULL, int mouse_button = 1);                                 // helper to open and begin popup when clicked in void (where there are no imgui windows).
     IMGUI_API bool          BeginPopupModal(const char* name, bool* p_open = NULL, ImGuiWindowFlags flags = 0);                     // modal dialog (regular window with title bar, block interactions behind the modal window, can't close the modal window by clicking outside)
     IMGUI_API void          EndPopup();                                                                                             // only call EndPopup() if BeginPopupXXX() returns true!
-    IMGUI_API bool          OpenPopupOnItemClick(const char* str_id = NULL, int mouse_button = 1);                                  // helper to open popup when clicked on last item. return true when just opened.
+    IMGUI_API bool          OpenPopupOnItemClick(const char* str_id = NULL, int mouse_button = 1);                                  // helper to open popup when clicked on last item (note: actually triggers on the mouse _released_ event to be consistent with popup behaviors). return true when just opened.
     IMGUI_API bool          IsPopupOpen(const char* str_id);                                    // return true if the popup is open
     IMGUI_API void          CloseCurrentPopup();                                                // close the popup we have begin-ed into. clicking on a MenuItem or Selectable automatically close the current popup.
 
@@ -639,8 +639,9 @@ enum ImGuiWindowFlags_
     ImGuiWindowFlags_NoScrollWithMouse      = 1 << 4,   // Disable user vertically scrolling with mouse wheel. On child window, mouse wheel will be forwarded to the parent unless NoScrollbar is also set.
     ImGuiWindowFlags_NoCollapse             = 1 << 5,   // Disable user collapsing window by double-clicking on it
     ImGuiWindowFlags_AlwaysAutoResize       = 1 << 6,   // Resize every window to its content every frame
+    ImGuiWindowFlags_NoBackground           = 1 << 7,   // Disable drawing background color (WindowBg, etc.) and outside border. Similar as using SetNextWindowBgAlpha(0.0f).
     ImGuiWindowFlags_NoSavedSettings        = 1 << 8,   // Never load/save settings in .ini file
-    ImGuiWindowFlags_NoInputs               = 1 << 9,   // Disable catching mouse or keyboard inputs, hovering test with pass through.
+    ImGuiWindowFlags_NoMouseInputs          = 1 << 9,   // Disable catching mouse, hovering test with pass through.
     ImGuiWindowFlags_MenuBar                = 1 << 10,  // Has a menu-bar
     ImGuiWindowFlags_HorizontalScrollbar    = 1 << 11,  // Allow horizontal scrollbar to appear (off by default). You may use SetNextWindowContentSize(ImVec2(width,0.0f)); prior to calling Begin() to specify width. Read code in imgui_demo in the "Horizontal Scrolling" section.
     ImGuiWindowFlags_NoFocusOnAppearing     = 1 << 12,  // Disable taking focus when transitioning from hidden to visible state
@@ -651,6 +652,8 @@ enum ImGuiWindowFlags_
     ImGuiWindowFlags_NoNavInputs            = 1 << 18,  // No gamepad/keyboard navigation within the window
     ImGuiWindowFlags_NoNavFocus             = 1 << 19,  // No focusing toward this window with gamepad/keyboard navigation (e.g. skipped by CTRL+TAB)
     ImGuiWindowFlags_NoNav                  = ImGuiWindowFlags_NoNavInputs | ImGuiWindowFlags_NoNavFocus,
+    ImGuiWindowFlags_NoDecoration           = ImGuiWindowFlags_NoTitleBar | ImGuiWindowFlags_NoResize | ImGuiWindowFlags_NoScrollbar | ImGuiWindowFlags_NoCollapse,
+    ImGuiWindowFlags_NoInputs               = ImGuiWindowFlags_NoMouseInputs | ImGuiWindowFlags_NoNavInputs | ImGuiWindowFlags_NoNavFocus,
 
     // [Internal]
     ImGuiWindowFlags_NavFlattened           = 1 << 23,  // [BETA] Allow gamepad/keyboard navigation to cross over parent border to this child (only use on child that have no scrolling!)
@@ -910,7 +913,7 @@ enum ImGuiBackendFlags_
     // [BETA] Viewports
     ImGuiBackendFlags_PlatformHasViewports  = 1 << 10,  // Back-end Platform supports multiple viewports.
     ImGuiBackendFlags_HasMouseHoveredViewport=1 << 11,  // Back-end Platform supports setting io.MouseHoveredViewport to the viewport directly under the mouse _IGNORING_ viewports with the ImGuiViewportFlags_NoInputs flag and _REGARDLESS_ of whether another viewport is focused and may be capturing the mouse. This information is _NOT EASY_ to provide correctly with most high-level engines! Don't set this without studying how the examples/ back-end handle it!
-    ImGuiBackendFlags_RendererHasViewports  = 1 << 12,  // Back-end Renderer supports multiple viewports.
+    ImGuiBackendFlags_RendererHasViewports  = 1 << 12   // Back-end Renderer supports multiple viewports.
 };
 
 // Enumeration for PushStyleColor() / PopStyleColor()
@@ -1623,7 +1626,7 @@ struct ImDrawCmd
     ImDrawCallback  UserCallback;           // If != NULL, call the function instead of rendering the vertices. clip_rect and texture_id will be set normally.
     void*           UserCallbackData;       // The draw callback code can access this.
 
-    ImDrawCmd() { ElemCount = 0; ClipRect.x = ClipRect.y = ClipRect.z = ClipRect.w = 0.0f; TextureId = NULL; UserCallback = NULL; UserCallbackData = NULL; }
+    ImDrawCmd() { ElemCount = 0; ClipRect.x = ClipRect.y = ClipRect.z = ClipRect.w = 0.0f; TextureId = (ImTextureID)NULL; UserCallback = NULL; UserCallbackData = NULL; }
 };
 
 // Vertex index (override with '#define ImDrawIdx unsigned int' inside in imconfig.h)