Merge branch 'master' into navigation

examples/directx9_example/main.cpp

@@ -144,6 +144,7 @@ int main(int, char**)
         }
 
         // Rendering
+        ImGui::EndFrame();
         g_pd3dDevice->SetRenderState(D3DRS_ZENABLE, false);
         g_pd3dDevice->SetRenderState(D3DRS_ALPHABLENDENABLE, false);
         g_pd3dDevice->SetRenderState(D3DRS_SCISSORTESTENABLE, false);
@@ -154,7 +155,15 @@ int main(int, char**)
             ImGui::Render();
             g_pd3dDevice->EndScene();
         }
-        g_pd3dDevice->Present(NULL, NULL, NULL, NULL);
+        HRESULT result = g_pd3dDevice->Present(NULL, NULL, NULL, NULL);
+
+        // Handle loss of D3D9 device
+        if (result == D3DERR_DEVICELOST && g_pd3dDevice->TestCooperativeLevel() == D3DERR_DEVICENOTRESET)
+        {
+            ImGui_ImplDX9_InvalidateDeviceObjects();
+            g_pd3dDevice->Reset(&g_d3dpp);
+            ImGui_ImplDX9_CreateDeviceObjects();
+        }
     }
 
     ImGui_ImplDX9_Shutdown();

extra_fonts/README.txt

@@ -153,7 +153,7 @@
  DroidSans.ttf
    Copyright (c) Steve Matteson
    Apache License, version 2.0
-   http://www.google.com/fonts/specimen/Droid+Sans
+   https://www.fontsquirrel.com/fonts/droid-sans
 
  ProggyClean.ttf
    Copyright (c) 2004, 2005 Tristan Grimmer

imgui.cpp

@@ -249,6 +249,7 @@
  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.
  Also read releases logs https://github.com/ocornut/imgui/releases for more details.
 
+ - 2017/11/27 (1.53) - renamed ImGuiTextBuffer::append() helper to appendf(), appendv() to appendfv(). If you copied the 'Log' demo in your code, it uses appendv() so that needs to be renamed.
  - 2017/11/18 (1.53) - Style, Begin: removed ImGuiWindowFlags_ShowBorders window flag. Borders are now fully set up in the ImGuiStyle structure (see e.g. style.FrameBorderSize, style.WindowBorderSize). Use ImGui::ShowStyleEditor() to look them up.
                        Please note that the style system will keep evolving (hopefully stabilizing in Q1 2018), and so custom styles will probably subtly break over time. It is recommended you use the StyleColorsClassic(), StyleColorsDark(), StyleColorsLight() functions.
  - 2017/11/18 (1.53) - Style: removed ImGuiCol_ComboBg in favor of combo boxes using ImGuiCol_PopupBg for consistency.
@@ -680,10 +681,13 @@ static void             AddDrawListToRenderList(ImVector<ImDrawList*>& out_rende
 static void             AddWindowToRenderList(ImVector<ImDrawList*>& out_render_list, ImGuiWindow* window);
 static void             AddWindowToSortedBuffer(ImVector<ImGuiWindow*>& out_sorted_windows, ImGuiWindow* window);
 
-static ImGuiIniData*    FindWindowSettings(const char* name);
+static ImGuiSettingsWindow* FindWindowSettings(const char* name);
-static ImGuiIniData*    AddWindowSettings(const char* name);
+static ImGuiSettingsWindow* AddWindowSettings(const char* name);
+
 static void             LoadIniSettingsFromDisk(const char* ini_filename);
+static void             LoadIniSettingsFromMemory(const char* buf);
 static void             SaveIniSettingsToDisk(const char* ini_filename);
+static void             SaveIniSettingsToMemory(ImVector<char>& out_buf);
 static void             MarkIniSettingsDirty(ImGuiWindow* window);
 
 static ImRect           GetVisibleRect();
@@ -963,8 +967,16 @@ void ImStrncpy(char* dst, const char* src, int count)
 char* ImStrdup(const char *str)
 {
     size_t len = strlen(str) + 1;
-    void* buff = ImGui::MemAlloc(len);
+    void* buf = ImGui::MemAlloc(len);
-    return (char*)memcpy(buff, (const void*)str, len);
+    return (char*)memcpy(buf, (const void*)str, len);
+}
+
+char* ImStrchrRange(const char* str, const char* str_end, char c)
+{
+    for ( ; str < str_end; str++)
+        if (*str == c) 
+            return (char*)str; 
+    return NULL;
 }
 
 int ImStrlenW(const ImWchar* str)
@@ -1454,6 +1466,23 @@ static ImVector<ImGuiStorage::Pair>::iterator LowerBound(ImVector<ImGuiStorage::
     return first;
 }
 
+// For quicker full rebuild of a storage (instead of an incremental one), you may add all your contents and then sort once.
+void ImGuiStorage::BuildSortByKey()
+{
+    struct StaticFunc 
+    { 
+        static int PairCompareByID(const void* lhs, const void* rhs) 
+        {
+            // We can't just do a subtraction because qsort uses signed integers and subtracting our ID doesn't play well with that.
+            if (((const Pair*)lhs)->key > ((const Pair*)rhs)->key) return +1;
+            if (((const Pair*)lhs)->key < ((const Pair*)rhs)->key) return -1;
+            return 0;
+        }
+    };
+    if (Data.Size > 1)
+        qsort(Data.Data, (size_t)Data.Size, sizeof(Pair), StaticFunc::PairCompareByID);
+}
+
 int ImGuiStorage::GetInt(ImGuiID key, int default_val) const
 {
     ImVector<Pair>::iterator it = LowerBound(const_cast<ImVector<ImGuiStorage::Pair>&>(Data), key);
@@ -1669,7 +1698,7 @@ bool ImGuiTextFilter::PassFilter(const char* text, const char* text_end) const
 #endif
 
 // Helper: Text buffer for logging/accumulating text
-void ImGuiTextBuffer::appendv(const char* fmt, va_list args)
+void ImGuiTextBuffer::appendfv(const char* fmt, va_list args)
 {
     va_list args_copy;
     va_copy(args_copy, args);
@@ -1690,11 +1719,11 @@ void ImGuiTextBuffer::appendv(const char* fmt, va_list args)
     ImFormatStringV(&Buf[write_off - 1], len + 1, fmt, args_copy);
 }
 
-void ImGuiTextBuffer::append(const char* fmt, ...)
+void ImGuiTextBuffer::appendf(const char* fmt, ...)
 {
     va_list args;
     va_start(args, fmt);
-    appendv(fmt, args);
+    appendfv(fmt, args);
     va_end(args);
 }
 
@@ -3247,13 +3276,76 @@ void ImGui::NewFrame()
     Begin("Debug##Default");
 }
 
+static void* SettingsHandlerWindow_ReadOpenEntry(ImGuiContext&, const char* name)
+{
+    ImGuiSettingsWindow* settings = FindWindowSettings(name);
+    if (!settings)
+        settings = AddWindowSettings(name);
+    return (void*)settings;
+}
+
+static void SettingsHandlerWindow_ReadLine(ImGuiContext&, void* entry, const char* line)
+{
+    ImGuiSettingsWindow* settings = (ImGuiSettingsWindow*)entry;
+    float x, y; 
+    int i;
+    if (sscanf(line, "Pos=%f,%f", &x, &y) == 2)         settings->Pos = ImVec2(x, y);
+    else if (sscanf(line, "Size=%f,%f", &x, &y) == 2)   settings->Size = ImMax(ImVec2(x, y), GImGui->Style.WindowMinSize);
+    else if (sscanf(line, "Collapsed=%d", &i) == 1)     settings->Collapsed = (i != 0);
+}
+
+static void SettingsHandlerWindow_WriteAll(ImGuiContext& g, ImGuiTextBuffer* buf)
+{
+    // Gather data from windows that were active during this session
+    for (int i = 0; i != g.Windows.Size; i++)
+    {
+        ImGuiWindow* window = g.Windows[i];
+        if (window->Flags & ImGuiWindowFlags_NoSavedSettings)
+            continue;
+        ImGuiSettingsWindow* settings = FindWindowSettings(window->Name);
+        if (!settings)  // This will only return NULL in the rare instance where the window was first created with ImGuiWindowFlags_NoSavedSettings then had the flag disabled later on. We don't bind settings in this case (bug #1000).
+            continue;
+        settings->Pos = window->Pos;
+        settings->Size = window->SizeFull;
+        settings->Collapsed = window->Collapsed;
+    }
+
+    // Write a buffer
+    // If a window wasn't opened in this session we preserve its settings
+    buf->reserve(buf->size() + g.SettingsWindows.Size * 96); // ballpark reserve
+    for (int i = 0; i != g.SettingsWindows.Size; i++)
+    {
+        const ImGuiSettingsWindow* settings = &g.SettingsWindows[i];
+        if (settings->Pos.x == FLT_MAX)
+            continue;
+        const char* name = settings->Name;
+        if (const char* p = strstr(name, "###"))  // Skip to the "###" marker if any. We don't skip past to match the behavior of GetID()
+            name = p;
+        buf->appendf("[Window][%s]\n", name);
+        buf->appendf("Pos=%d,%d\n", (int)settings->Pos.x, (int)settings->Pos.y);
+        buf->appendf("Size=%d,%d\n", (int)settings->Size.x, (int)settings->Size.y);
+        buf->appendf("Collapsed=%d\n", settings->Collapsed);
+        buf->appendf("\n");
+    }
+}
+
 void ImGui::Initialize()
 {
     ImGuiContext& g = *GImGui;
     g.LogClipboard = (ImGuiTextBuffer*)ImGui::MemAlloc(sizeof(ImGuiTextBuffer));
     IM_PLACEMENT_NEW(g.LogClipboard) ImGuiTextBuffer();
 
-    IM_ASSERT(g.Settings.empty());
+    // Add .ini handle for ImGuiWindow type
+    ImGuiSettingsHandler ini_handler;
+    ini_handler.TypeName = "Window";
+    ini_handler.TypeHash = ImHash("Window", 0, 0);
+    ini_handler.ReadOpenEntryFn = SettingsHandlerWindow_ReadOpenEntry;
+    ini_handler.ReadLineFn = SettingsHandlerWindow_ReadLine;
+    ini_handler.WriteAllFn = SettingsHandlerWindow_WriteAll;
+    g.SettingsHandlers.push_front(ini_handler);
+
+    // Load .ini file
+    IM_ASSERT(g.SettingsWindows.empty());
     LoadIniSettingsFromDisk(g.IO.IniFilename);
     g.Initialized = true;
 }
@@ -3288,9 +3380,8 @@ void ImGui::Shutdown()
     g.HoveredRootWindow = NULL;
     g.ActiveIdWindow = NULL;
     g.MovingWindow = NULL;
-    for (int i = 0; i < g.Settings.Size; i++)
+    for (int i = 0; i < g.SettingsWindows.Size; i++)
-        ImGui::MemFree(g.Settings[i].Name);
+        ImGui::MemFree(g.SettingsWindows[i].Name);
-    g.Settings.clear();
     g.ColorModifiers.clear();
     g.StyleModifiers.clear();
     g.FontStack.clear();
@@ -3306,6 +3397,9 @@ void ImGui::Shutdown()
     g.InputTextState.InitialText.clear();
     g.InputTextState.TempTextBuffer.clear();
 
+    g.SettingsWindows.clear();
+    g.SettingsHandlers.clear();
+
     if (g.LogFile && g.LogFile != stdout)
     {
         fclose(g.LogFile);
@@ -3320,76 +3414,97 @@ void ImGui::Shutdown()
     g.Initialized = false;
 }
 
-static ImGuiIniData* FindWindowSettings(const char* name)
+static ImGuiSettingsWindow* FindWindowSettings(const char* name)
 {
     ImGuiContext& g = *GImGui;
     ImGuiID id = ImHash(name, 0);
-    for (int i = 0; i != g.Settings.Size; i++)
+    for (int i = 0; i != g.SettingsWindows.Size; i++)
     {
-        ImGuiIniData* ini = &g.Settings[i];
+        ImGuiSettingsWindow* ini = &g.SettingsWindows[i];
         if (ini->Id == id)
             return ini;
     }
     return NULL;
 }
 
-static ImGuiIniData* AddWindowSettings(const char* name)
+static ImGuiSettingsWindow* AddWindowSettings(const char* name)
-{
-    GImGui->Settings.resize(GImGui->Settings.Size + 1);
-    ImGuiIniData* ini = &GImGui->Settings.back();
-    ini->Name = ImStrdup(name);
-    ini->Id = ImHash(name, 0);
-    ini->Collapsed = false;
-    ini->Pos = ImVec2(FLT_MAX,FLT_MAX);
-    ini->Size = ImVec2(0,0);
-    return ini;
-}
-
-// Zero-tolerance, poor-man .ini parsing
-// FIXME: Write something less rubbish
-static void LoadIniSettingsFromDisk(const char* ini_filename)
 {
     ImGuiContext& g = *GImGui;
+    g.SettingsWindows.resize(g.SettingsWindows.Size + 1);
+    ImGuiSettingsWindow* settings = &g.SettingsWindows.back();
+    settings->Name = ImStrdup(name);
+    settings->Id = ImHash(name, 0);
+    settings->Collapsed = false;
+    settings->Pos = ImVec2(FLT_MAX,FLT_MAX);
+    settings->Size = ImVec2(0,0);
+    return settings;
+}
+
+static void LoadIniSettingsFromDisk(const char* ini_filename)
+{
     if (!ini_filename)
         return;
-
+    char* file_data = (char*)ImFileLoadToMemory(ini_filename, "rb", NULL, +1);
-    int file_size;
-    char* file_data = (char*)ImFileLoadToMemory(ini_filename, "rb", &file_size, 1);
     if (!file_data)
         return;
+    LoadIniSettingsFromMemory(file_data);
+    ImGui::MemFree(file_data);
+}
 
-    ImGuiIniData* settings = NULL;
+// Zero-tolerance, no error reporting, cheap .ini parsing
-    const char* buf_end = file_data + file_size;
+static void LoadIniSettingsFromMemory(const char* buf_readonly)
-    for (const char* line_start = file_data; line_start < buf_end; )
+{
+    // For convenience and to make the code simpler, we'll write zero terminators inside the buffer. So let's create a writable copy.
+    char* buf = ImStrdup(buf_readonly);
+    char* buf_end = buf + strlen(buf);
+
+    ImGuiContext& g = *GImGui;
+    void* entry_data = NULL;
+    const ImGuiSettingsHandler* entry_handler = NULL;
+
+    char* line_end = NULL;
+    for (char* line = buf; line < buf_end; line = line_end + 1)
     {
-        const char* line_end = line_start;
+        // Skip new lines markers, then find end of the line
+        while (*line == '\n' || *line == '\r')
+            line++;
+        line_end = line;
         while (line_end < buf_end && *line_end != '\n' && *line_end != '\r')
             line_end++;
+        line_end[0] = 0;
 
-        if (line_start[0] == '[' && line_end > line_start && line_end[-1] == ']')
+        if (line[0] == '[' && line_end > line && line_end[-1] == ']')
         {
-            char name[64];
+            // Parse "[Type][Name]". Note that 'Name' can itself contains [] characters, which is acceptable with the current format and parsing code.
-            ImFormatString(name, IM_ARRAYSIZE(name), "%.*s", (int)(line_end-line_start-2), line_start+1);
+            line_end[-1] = 0;
-            settings = FindWindowSettings(name);
+            const char* name_end = line_end - 1; 
-            if (!settings)
+            const char* type_start = line + 1;
-                settings = AddWindowSettings(name);
+            char* type_end = ImStrchrRange(type_start, name_end, ']');
-        }
+            const char* name_start = type_end ? ImStrchrRange(type_end + 1, name_end, '[') : NULL;
-        else if (settings)
+            if (!type_end || !name_start)
             {
-            float x, y;
+                name_start = type_start; // Import legacy entries that have no type
-            int i;
+                type_start = "Window";
-            if (sscanf(line_start, "Pos=%f,%f", &x, &y) == 2)
-                settings->Pos = ImVec2(x, y);
-            else if (sscanf(line_start, "Size=%f,%f", &x, &y) == 2)
-                settings->Size = ImMax(ImVec2(x, y), g.Style.WindowMinSize);
-            else if (sscanf(line_start, "Collapsed=%d", &i) == 1)
-                settings->Collapsed = (i != 0);
             }
-
+            else
-        line_start = line_end+1;
+            {
+                *type_end = 0; // Overwrite first ']' 
+                name_start++;  // Skip second '['
             }
-
+            const ImGuiID type_hash = ImHash(type_start, 0, 0);
-    ImGui::MemFree(file_data);
+            entry_handler = NULL;
+            for (int handler_n = 0; handler_n < g.SettingsHandlers.Size && entry_handler == NULL; handler_n++)
+                if (g.SettingsHandlers[handler_n].TypeHash == type_hash)
+                    entry_handler = &g.SettingsHandlers[handler_n];
+            entry_data = entry_handler ? entry_handler->ReadOpenEntryFn(g, name_start) : NULL;
+        }
+        else if (entry_handler != NULL && entry_data != NULL)
+        {
+            // Let type handler parse the line
+            entry_handler->ReadLineFn(g, entry_data, line);
+        }
+    }
+    ImGui::MemFree(buf);
 }
 
 static void SaveIniSettingsToDisk(const char* ini_filename)
@@ -3399,43 +3514,36 @@ static void SaveIniSettingsToDisk(const char* ini_filename)
     if (!ini_filename)
         return;
 
-    // Gather data from windows that were active during this session
+    ImVector<char> buf;
-    for (int i = 0; i != g.Windows.Size; i++)
+    SaveIniSettingsToMemory(buf);
-    {
-        ImGuiWindow* window = g.Windows[i];
-        if (window->Flags & ImGuiWindowFlags_NoSavedSettings)
-            continue;
-        ImGuiIniData* settings = FindWindowSettings(window->Name);
-        if (!settings)  // This will only return NULL in the rare instance where the window was first created with ImGuiWindowFlags_NoSavedSettings then had the flag disabled later on. We don't bind settings in this case (bug #1000).
-            continue;
-        settings->Pos = window->Pos;
-        settings->Size = window->SizeFull;
-        settings->Collapsed = window->Collapsed;
-    }
 
-    // Write .ini file
-    // If a window wasn't opened in this session we preserve its settings
     FILE* f = ImFileOpen(ini_filename, "wt");
     if (!f)
         return;
-    for (int i = 0; i != g.Settings.Size; i++)
+    fwrite(buf.Data, sizeof(char), (size_t)buf.Size, f);
-    {
-        const ImGuiIniData* settings = &g.Settings[i];
-        if (settings->Pos.x == FLT_MAX)
-            continue;
-        const char* name = settings->Name;
-        if (const char* p = strstr(name, "###"))  // Skip to the "###" marker if any. We don't skip past to match the behavior of GetID()
-            name = p;
-        fprintf(f, "[%s]\n", name);
-        fprintf(f, "Pos=%d,%d\n", (int)settings->Pos.x, (int)settings->Pos.y);
-        fprintf(f, "Size=%d,%d\n", (int)settings->Size.x, (int)settings->Size.y);
-        fprintf(f, "Collapsed=%d\n", settings->Collapsed);
-        fprintf(f, "\n");
-    }
-
     fclose(f);
 }
 
+static void SaveIniSettingsToMemory(ImVector<char>& out_buf)
+{
+    ImGuiContext& g = *GImGui;
+    g.SettingsDirtyTimer = 0.0f;
+
+    ImGuiTextBuffer buf;
+    for (int handler_n = 0; handler_n < g.SettingsHandlers.Size; handler_n++)
+        g.SettingsHandlers[handler_n].WriteAllFn(g, &buf);
+
+    buf.Buf.pop_back(); // Remove extra zero-terminator used by ImGuiTextBuffer
+    out_buf.swap(buf.Buf);
+}
+
+void ImGui::MarkIniSettingsDirty()
+{
+    ImGuiContext& g = *GImGui;
+    if (g.SettingsDirtyTimer <= 0.0f)
+        g.SettingsDirtyTimer = g.IO.IniSavingRate;
+}
+
 static void MarkIniSettingsDirty(ImGuiWindow* window)
 {
     ImGuiContext& g = *GImGui;
@@ -3745,7 +3853,7 @@ void ImGui::LogText(const char* fmt, ...)
     }
     else
     {
-        g.LogClipboard->appendv(fmt, args);
+        g.LogClipboard->appendfv(fmt, args);
     }
     va_end(args);
 }
@@ -4876,7 +4984,7 @@ static ImGuiWindow* CreateNewWindow(const char* name, ImVec2 size, ImGuiWindowFl
         window->PosFloat = ImVec2(60, 60);
         window->Pos = ImVec2((float)(int)window->PosFloat.x, (float)(int)window->PosFloat.y);
 
-        ImGuiIniData* settings = FindWindowSettings(name);
+        ImGuiSettingsWindow* settings = FindWindowSettings(name);
         if (!settings)
             settings = AddWindowSettings(name);
         else

imgui.h

@@ -1032,6 +1032,7 @@ public:
 
     inline void                 push_back(const value_type& v)  { if (Size == Capacity) reserve(_grow_capacity(Size+1)); Data[Size++] = v; }
     inline void                 pop_back()                      { IM_ASSERT(Size > 0); Size--; }
+    inline void                 push_front(const value_type& v) { if (Size == 0) push_back(v); else insert(Data, v); }
 
     inline iterator             erase(const_iterator it)        { IM_ASSERT(it >= Data && it < Data+Size); const ptrdiff_t off = it - Data; memmove(Data + off, Data + off + 1, ((size_t)Size - (size_t)off - 1) * sizeof(value_type)); Size--; return Data + off; }
     inline iterator             insert(const_iterator it, const value_type& v)  { IM_ASSERT(it >= Data && it <= Data+Size); const ptrdiff_t off = it - Data; if (Size == Capacity) reserve(Capacity ? Capacity * 2 : 4); if (off < (int)Size) memmove(Data + off + 1, Data + off, ((size_t)Size - (size_t)off) * sizeof(value_type)); Data[off] = v; Size++; return Data + off; }
@@ -1097,9 +1098,10 @@ struct ImGuiTextBuffer
     int                 size() const { return Buf.Size - 1; }
     bool                empty() { return Buf.Size <= 1; }
     void                clear() { Buf.clear(); Buf.push_back(0); }
+    void                reserve(int capacity) { Buf.reserve(capacity); }
     const char*         c_str() const { return Buf.Data; }
-    IMGUI_API void      append(const char* fmt, ...) IM_FMTARGS(2);
+    IMGUI_API void      appendf(const char* fmt, ...) IM_FMTARGS(2);
-    IMGUI_API void      appendv(const char* fmt, va_list args) IM_FMTLIST(2);
+    IMGUI_API void      appendfv(const char* fmt, va_list args) IM_FMTLIST(2);
 };
 
 // Helper: Simple Key->value storage
@@ -1146,6 +1148,9 @@ struct ImGuiStorage
 
     // Use on your own storage if you know only integer are being stored (open/close all tree nodes)
     IMGUI_API void      SetAllInt(int val);
+
+    // For quicker full rebuild of a storage (instead of an incremental one), you may add all your contents and then sort once.
+    IMGUI_API void      BuildSortByKey();
 };
 
 // Shared state of InputText(), passed to callback when a ImGuiInputTextFlags_Callback* flag is used and the corresponding callback is triggered.

imgui_demo.cpp

@@ -2748,7 +2748,7 @@ struct ExampleAppLog
         int old_size = Buf.size();
         va_list args;
         va_start(args, fmt);
-        Buf.appendv(fmt, args);
+        Buf.appendfv(fmt, args);
         va_end(args);
         for (int new_size = Buf.size(); old_size < new_size; old_size++)
             if (Buf[old_size] == '\n')
@@ -2952,7 +2952,7 @@ static void ShowExampleAppLongText(bool* p_open)
     if (ImGui::Button("Add 1000 lines"))
     {
         for (int i = 0; i < 1000; i++)
-            log.append("%i The quick brown fox jumps over the lazy dog\n", lines+i);
+            log.appendf("%i The quick brown fox jumps over the lazy dog\n", lines+i);
         lines += 1000;
     }
     ImGui::BeginChild("Log");

imgui_internal.h

@@ -39,7 +39,7 @@ struct ImGuiGroupData;
 struct ImGuiSimpleColumns;
 struct ImGuiDrawContext;
 struct ImGuiTextEditState;
-struct ImGuiIniData;
+struct ImGuiSettingsWindow;
 struct ImGuiMouseCursorData;
 struct ImGuiPopupRef;
 struct ImGuiWindow;
@@ -108,6 +108,7 @@ IMGUI_API int           ImStricmp(const char* str1, const char* str2);
 IMGUI_API int           ImStrnicmp(const char* str1, const char* str2, int count);
 IMGUI_API void          ImStrncpy(char* dst, const char* src, int count);
 IMGUI_API char*         ImStrdup(const char* str);
+IMGUI_API char*         ImStrchrRange(const char* str_begin, const char* str_end, char c);
 IMGUI_API int           ImStrlenW(const ImWchar* str);
 IMGUI_API const ImWchar*ImStrbolW(const ImWchar* buf_mid_line, const ImWchar* buf_begin); // Find beginning-of-line
 IMGUI_API const char*   ImStristr(const char* haystack, const char* haystack_end, const char* needle, const char* needle_end);
@@ -389,13 +390,24 @@ struct IMGUI_API ImGuiTextEditState
 };
 
 // Data saved in imgui.ini file
-struct ImGuiIniData
+struct ImGuiSettingsWindow
 {
     char*       Name;
     ImGuiID     Id;
     ImVec2      Pos;
     ImVec2      Size;
     bool        Collapsed;
+
+    ImGuiSettingsWindow() { Name = NULL; Id = 0; Pos = Size = ImVec2(0,0); Collapsed = false; }
+};
+
+struct ImGuiSettingsHandler
+{
+    const char* TypeName;   // Short description stored in .ini file. Disallowed characters: '[' ']'  
+    ImGuiID     TypeHash;   // == ImHash(TypeName, 0, 0)
+    void*       (*ReadOpenEntryFn)(ImGuiContext& ctx, const char* name);
+    void        (*ReadLineFn)(ImGuiContext& ctx, void* entry, const char* line);
+    void        (*WriteAllFn)(ImGuiContext& ctx, ImGuiTextBuffer* out_buf);
 };
 
 // Mouse cursor data (used when io.MouseDrawCursor is set)
@@ -459,8 +471,6 @@ struct ImGuiContext
     ImGuiInputSource        ActiveIdSource;                     // Activating with mouse or nav (gamepad/keyboard)
     ImGuiWindow*            MovingWindow;                       // Track the child window we clicked on to move a window.
     ImGuiID                 MovingWindowMoveId;                 // == MovingWindow->MoveId
-    ImVector<ImGuiIniData>  Settings;                           // .ini Settings
-    float                   SettingsDirtyTimer;                 // Save .ini Settings on disk when time reaches zero
     ImVector<ImGuiColMod>   ColorModifiers;                     // Stack for PushStyleColor()/PopStyleColor()
     ImVector<ImGuiStyleMod> StyleModifiers;                     // Stack for PushStyleVar()/PopStyleVar()
     ImVector<ImFont*>       FontStack;                          // Stack for PushFont()/PopFont()
@@ -545,6 +555,11 @@ struct ImGuiContext
     ImVector<char>          PrivateClipboard;                   // If no custom clipboard handler is defined
     ImVec2                  OsImePosRequest, OsImePosSet;       // Cursor position request & last passed to the OS Input Method Editor
 
+    // Settings
+    float                          SettingsDirtyTimer;          // Save .ini Settings on disk when time reaches zero
+    ImVector<ImGuiSettingsWindow>  SettingsWindows;             // .ini settings for ImGuiWindow
+    ImVector<ImGuiSettingsHandler> SettingsHandlers;            // List of .ini settings handlers
+
     // Logging
     bool                    LogEnabled;
     FILE*                   LogFile;                            // If != NULL log to stdout/ file
@@ -590,7 +605,6 @@ struct ImGuiContext
         ActiveIdSource = ImGuiInputSource_None;
         MovingWindow = NULL;
         MovingWindowMoveId = 0;
-        SettingsDirtyTimer = 0.0f;
 
         NavWindow = NULL;
         NavId = NavActivateId = NavActivateDownId = NavInputId = 0;
@@ -648,6 +662,8 @@ struct ImGuiContext
         MouseCursor = ImGuiMouseCursor_Arrow;
         memset(MouseCursorData, 0, sizeof(MouseCursorData));
 
+        SettingsDirtyTimer = 0.0f;
+
         LogEnabled = false;
         LogFile = NULL;
         LogClipboard = NULL;
@@ -887,6 +903,8 @@ namespace ImGui
 
     IMGUI_API void          Initialize();
 
+    IMGUI_API void          MarkIniSettingsDirty();
+
     IMGUI_API void          SetActiveID(ImGuiID id, ImGuiWindow* window);
     IMGUI_API ImGuiID       GetActiveID();
     IMGUI_API void          SetFocusID(ImGuiID id, ImGuiWindow* window);