imgui-test: Added extra item info callbacks. Using nav_bb for interactions when possible. Comments, Demo tweaks.

imgui.cpp

@@ -1278,6 +1278,7 @@ ImVec2 ImTriangleClosestPoint(const ImVec2& a, const ImVec2& b, const ImVec2& c,
     return proj_ca;
 }
 
+// Consider using _stricmp/_strnicmp under Windows or strcasecmp/strncasecmp. We don't actually use either ImStricmp/ImStrnicmp in the codebase any more.
 int ImStricmp(const char* str1, const char* str2)
 {
     int d;
@@ -1294,10 +1295,11 @@ int ImStrnicmp(const char* str1, const char* str2, size_t count)
 
 void ImStrncpy(char* dst, const char* src, size_t count)
 {
-    if (count < 1) return;
+    if (count < 1) 
+        return;
     if (count > 1)
-      strncpy(dst, src, count-1);
+        strncpy(dst, src, count - 1);
-    dst[count-1] = 0;
+    dst[count - 1] = 0;
 }
 
 char* ImStrdup(const char* str)
@@ -2796,7 +2798,7 @@ bool ImGui::ItemAdd(const ImRect& bb, ImGuiID id, const ImRect* nav_bb_arg)
 
 #ifdef IMGUI_ENABLE_TEST_ENGINE
     if (id != 0)
-        ImGuiTestEngineHook_ItemAdd(&g, bb, id);
+        ImGuiTestEngineHook_ItemAdd(&g, nav_bb_arg ? *nav_bb_arg : bb, id);
 #endif
 
     // Clipping test

imgui_demo.cpp

@@ -1034,16 +1034,18 @@ static void ShowDemoWindowWidgets()
 
         ImGui::Text("Color button with Custom Picker Popup:");
 
-        // Generate a dummy palette
+        // Generate a dummy default palette. The palette will persist and can be edited.
-        static bool saved_palette_inited = false;
+        static bool saved_palette_init = true;
-        static ImVec4 saved_palette[32];
+        static ImVec4 saved_palette[32] = { };
-        if (!saved_palette_inited)
+        if (saved_palette_init)
+        {
             for (int n = 0; n < IM_ARRAYSIZE(saved_palette); n++)
             {
                 ImGui::ColorConvertHSVtoRGB(n / 31.0f, 0.8f, 0.8f, saved_palette[n].x, saved_palette[n].y, saved_palette[n].z);
                 saved_palette[n].w = 1.0f; // Alpha
             }
-        saved_palette_inited = true;
+            saved_palette_init = false;
+        }
 
         static ImVec4 backup_color;
         bool open_popup = ImGui::ColorButton("MyColor##3b", color, misc_flags);
@@ -1056,12 +1058,12 @@ static void ShowDemoWindowWidgets()
         }
         if (ImGui::BeginPopup("mypicker"))
         {
-            // FIXME: Adding a drag and drop example here would be perfect!
             ImGui::Text("MY CUSTOM COLOR PICKER WITH AN AMAZING PALETTE!");
             ImGui::Separator();
             ImGui::ColorPicker4("##picker", (float*)&color, misc_flags | ImGuiColorEditFlags_NoSidePreview | ImGuiColorEditFlags_NoSmallPreview);
             ImGui::SameLine();
-            ImGui::BeginGroup();
+
+            ImGui::BeginGroup(); // Lock X position
             ImGui::Text("Current");
             ImGui::ColorButton("##current", color, ImGuiColorEditFlags_NoPicker | ImGuiColorEditFlags_AlphaPreviewHalf, ImVec2(60,40));
             ImGui::Text("Previous");
@@ -1077,6 +1079,8 @@ static void ShowDemoWindowWidgets()
                 if (ImGui::ColorButton("##palette", saved_palette[n], ImGuiColorEditFlags_NoAlpha | ImGuiColorEditFlags_NoPicker | ImGuiColorEditFlags_NoTooltip, ImVec2(20,20)))
                     color = ImVec4(saved_palette[n].x, saved_palette[n].y, saved_palette[n].z, color.w); // Preserve alpha!
 
+                // Allow user to drop colors into each palette entry
+                // (Note that ColorButton is already a drag source by default, unless using ImGuiColorEditFlags_NoDragDrop)
                 if (ImGui::BeginDragDropTarget())
                 {
                     if (const ImGuiPayload* payload = ImGui::AcceptDragDropPayload(IMGUI_PAYLOAD_TYPE_COLOR_3F))

imgui_internal.h

@@ -1475,7 +1475,7 @@ IMGUI_API void              ImFontAtlasBuildMultiplyRectAlpha8(const unsigned ch
 extern void                 ImGuiTestEngineHook_PreNewFrame(ImGuiContext* ctx);
 extern void                 ImGuiTestEngineHook_PostNewFrame(ImGuiContext* ctx);
 extern void                 ImGuiTestEngineHook_ItemAdd(ImGuiContext* ctx, const ImRect& bb, ImGuiID id);
-extern void                 ImGuiTestEngineHook_ItemInfo(ImGuiContext* ctx, ImGuiID id, const char* label, int flags);
+extern void                 ImGuiTestEngineHook_ItemInfo(ImGuiContext* ctx, ImGuiID id, const char* label, ImGuiItemStatusFlags flags);
 #define IMGUI_TEST_ENGINE_ITEM_INFO(_ID, _LABEL, _FLAGS)  ImGuiTestEngineHook_ItemInfo(&g, _ID, _LABEL, _FLAGS)   // Register status flags
 #else
 #define IMGUI_TEST_ENGINE_ITEM_INFO(_ID, _LABEL, _FLAGS)  do { } while (0)

imgui_widgets.cpp

@@ -577,6 +577,7 @@ bool ImGui::ButtonEx(const char* label, const ImVec2& size_arg, ImGuiButtonFlags
     //if (pressed && !(flags & ImGuiButtonFlags_DontClosePopups) && (window->Flags & ImGuiWindowFlags_Popup))
     //    CloseCurrentPopup();
 
+    IMGUI_TEST_ENGINE_ITEM_INFO(id, label, window->DC.LastItemStatusFlags);
     return pressed;
 }
 
@@ -1929,6 +1930,7 @@ bool ImGui::DragScalar(const char* label, ImGuiDataType data_type, void* v, floa
     if (label_size.x > 0.0f)
         RenderText(ImVec2(frame_bb.Max.x + style.ItemInnerSpacing.x, inner_bb.Min.y), label);
 
+    IMGUI_TEST_ENGINE_ITEM_INFO(id, label, window->DC.ItemFlags);
     return value_changed;
 }
 
@@ -2368,6 +2370,7 @@ bool ImGui::SliderScalar(const char* label, ImGuiDataType data_type, void* v, co
     if (label_size.x > 0.0f)
         RenderText(ImVec2(frame_bb.Max.x + style.ItemInnerSpacing.x, frame_bb.Min.y + style.FramePadding.y), label);
 
+    IMGUI_TEST_ENGINE_ITEM_INFO(id, label, window->DC.ItemFlags);
     return value_changed;
 }
 
@@ -3791,6 +3794,7 @@ bool ImGui::InputTextEx(const char* label, char* buf, int buf_size, const ImVec2
     if (value_changed)
         MarkItemEdited(id);
 
+    IMGUI_TEST_ENGINE_ITEM_INFO(id, label, window->DC.ItemFlags);
     if ((flags & ImGuiInputTextFlags_EnterReturnsTrue) != 0)
         return enter_pressed;
     else