Updated to latest imgui.

3rdparty/ocornut-imgui/imgui.h

@@ -159,14 +159,14 @@ namespace ImGui
     IMGUI_API void          ShowUserGuide();                            // help block
     IMGUI_API void          ShowStyleEditor(ImGuiStyle* ref = NULL);    // style editor block
     IMGUI_API void          ShowTestWindow(bool* opened = NULL);        // test window, demonstrate ImGui features
-    IMGUI_API void          ShowMetricsWindow(bool* opened = NULL);     // metrics window
+    IMGUI_API void          ShowMetricsWindow(bool* opened = NULL);     // metrics window for debugging imgui
 
     // Window
     // See implementation in .cpp for details
     IMGUI_API bool          Begin(const char* name = "Debug", bool* p_opened = NULL, ImGuiWindowFlags flags = 0);                                           // return false when window is collapsed, so you can early out in your code. 'bool* p_opened' creates a widget on the upper-right to close the window (which sets your bool to false). 
     IMGUI_API bool          Begin(const char* name, bool* p_opened, const ImVec2& size_on_first_use, float bg_alpha = -1.0f, ImGuiWindowFlags flags = 0);   // this is the older/longer API. call SetNextWindowSize() instead if you want to set a window size. For regular windows, 'size_on_first_use' only applies to the first time EVER the window is created and probably not what you want! maybe obsolete this API eventually.
     IMGUI_API void          End();
-    IMGUI_API bool          BeginChild(const char* str_id, const ImVec2& size = ImVec2(0,0), bool border = false, ImGuiWindowFlags extra_flags = 0);        // size==0.0f: use remaining window size, size<0.0f: use remaining window size minus abs(size). on each axis.
+    IMGUI_API bool          BeginChild(const char* str_id, const ImVec2& size = ImVec2(0,0), bool border = false, ImGuiWindowFlags extra_flags = 0);        // size==0.0f: use remaining window size, size<0.0f: use remaining window size minus abs(size). size>0.0f: fixed size. each axis can use a different mode, e.g. ImVec2(0,400).
     IMGUI_API bool          BeginChild(ImGuiID id, const ImVec2& size = ImVec2(0,0), bool border = false, ImGuiWindowFlags extra_flags = 0);                // "
     IMGUI_API void          EndChild();
     IMGUI_API ImVec2        GetContentRegionMax();                                              // window or current column boundaries, in windows coordinates
@@ -237,7 +237,7 @@ namespace ImGui
     IMGUI_API void          Spacing();                                                          // add vertical spacing
     IMGUI_API void          Indent();                                                           // move content position toward the right by style.IndentSpacing pixels
     IMGUI_API void          Unindent();                                                         // move content position back to the left (cancel Indent)
-    IMGUI_API void          Columns(int count = 1, const char* id = NULL, bool border=true);    // setup number of columns
+    IMGUI_API void          Columns(int count = 1, const char* id = NULL, bool border=true);    // setup number of columns. use an identifier to distinguish multiple column sets. close with Columns(1).
     IMGUI_API void          NextColumn();                                                       // next column
     IMGUI_API int           GetColumnIndex();                                                   // get current column index
     IMGUI_API float         GetColumnOffset(int column_index = -1);                             // get position of column line (in pixels, from the left side of the contents region). pass -1 to use current column, otherwise 0..GetcolumnsCount() inclusive. column 0 is usually 0.0f and not resizable unless you call this
@@ -329,13 +329,13 @@ namespace ImGui
     // Widgets: Input
     IMGUI_API bool          InputText(const char* label, char* buf, size_t buf_size, ImGuiInputTextFlags flags = 0, ImGuiTextEditCallback callback = NULL, void* user_data = NULL);
     IMGUI_API bool          InputFloat(const char* label, float* v, float step = 0.0f, float step_fast = 0.0f, int decimal_precision = -1, ImGuiInputTextFlags extra_flags = 0);
-    IMGUI_API bool          InputFloat2(const char* label, float v[2], int decimal_precision = -1);
-    IMGUI_API bool          InputFloat3(const char* label, float v[3], int decimal_precision = -1);
-    IMGUI_API bool          InputFloat4(const char* label, float v[4], int decimal_precision = -1);
+    IMGUI_API bool          InputFloat2(const char* label, float v[2], int decimal_precision = -1, ImGuiInputTextFlags extra_flags = 0);
+    IMGUI_API bool          InputFloat3(const char* label, float v[3], int decimal_precision = -1, ImGuiInputTextFlags extra_flags = 0);
+    IMGUI_API bool          InputFloat4(const char* label, float v[4], int decimal_precision = -1, ImGuiInputTextFlags extra_flags = 0);
     IMGUI_API bool          InputInt(const char* label, int* v, int step = 1, int step_fast = 100, ImGuiInputTextFlags extra_flags = 0);
-    IMGUI_API bool          InputInt2(const char* label, int v[2]);
-    IMGUI_API bool          InputInt3(const char* label, int v[3]);
-    IMGUI_API bool          InputInt4(const char* label, int v[4]);
+    IMGUI_API bool          InputInt2(const char* label, int v[2], ImGuiInputTextFlags extra_flags = 0);
+    IMGUI_API bool          InputInt3(const char* label, int v[3], ImGuiInputTextFlags extra_flags = 0);
+    IMGUI_API bool          InputInt4(const char* label, int v[4], ImGuiInputTextFlags extra_flags = 0);
 
     // Widgets: Trees
     IMGUI_API bool          TreeNode(const char* str_label_id);                                 // if returning 'true' the node is open and the user is responsible for calling TreePop
@@ -357,6 +357,11 @@ namespace ImGui
     IMGUI_API bool          ListBoxHeader(const char* label, int items_count, int height_in_items = -1); // "
     IMGUI_API void          ListBoxFooter();                                                    // terminate the scrolling region
 
+    // Widgets: Menus
+    // FIXME-WIP: v1.39 in development
+    IMGUI_API bool          MenuItem(const char* label, const char* shortcut = NULL, bool selected = false); // bool enabled = true
+    IMGUI_API bool          MenuItem(const char* label, const char* shortcut, bool* p_selected); // bool enabled = true
+
     // Widgets: Value() Helpers. Output single value in "name: value" format (tip: freely declare your own within the ImGui namespace!)
     IMGUI_API void          Value(const char* prefix, bool b);
     IMGUI_API void          Value(const char* prefix, int v);
@@ -386,7 +391,9 @@ namespace ImGui
     IMGUI_API bool          IsRootWindowFocused();                                              // is current root window focused
     IMGUI_API bool          IsRootWindowOrAnyChildFocused();                                    // is current root window or any of its child (including current window) focused
     IMGUI_API bool          IsRectClipped(const ImVec2& size);                                  // test if rectangle of given size starting from cursor pos is out of clipping region. to perform coarse clipping on user's side (as an optimization)
-    IMGUI_API bool          IsKeyPressed(int key_index, bool repeat = true);                    // key_index into the keys_down[512] array, imgui doesn't know the semantic of each entry
+    IMGUI_API bool          IsKeyDown(int key_index);                                           // key_index into the keys_down[512] array, imgui doesn't know the semantic of each entry
+    IMGUI_API bool          IsKeyPressed(int key_index, bool repeat = true);                    // "
+    IMGUI_API bool          IsMouseDown(int button);
     IMGUI_API bool          IsMouseClicked(int button, bool repeat = false);
     IMGUI_API bool          IsMouseDoubleClicked(int button);
     IMGUI_API bool          IsMouseHoveringWindow();                                            // is mouse hovering current window ("window" in API names always refer to current window)
@@ -581,7 +588,8 @@ enum ImGuiSetCond_
 {
     ImGuiSetCond_Always        = 1 << 0, // Set the variable
     ImGuiSetCond_Once          = 1 << 1, // Only set the variable on the first call per runtime session
-    ImGuiSetCond_FirstUseEver  = 1 << 2  // Only set the variable if the window doesn't exist in the .ini file
+    ImGuiSetCond_FirstUseEver  = 1 << 2, // Only set the variable if the window doesn't exist in the .ini file
+    ImGuiSetCond_Appearing     = 1 << 3  // Only set the variable if the window is appearing after being inactive (or the first time)
 };
 
 struct ImGuiStyle
@@ -596,13 +604,14 @@ struct ImGuiStyle
     ImVec2      ItemSpacing;                // Horizontal and vertical spacing between widgets/lines
     ImVec2      ItemInnerSpacing;           // Horizontal and vertical spacing between within elements of a composed widget (e.g. a slider and its label)
     ImVec2      TouchExtraPadding;          // Expand reactive bounding box for touch-based system where touch position is not accurate enough. Unfortunately we don't sort widgets so priority on overlap will always be given to the first widget. So don't grow this too much!
-    ImVec2      AutoFitPadding;             // Extra space after auto-fit (double-clicking on resize grip)
     float       WindowFillAlphaDefault;     // Default alpha of window background, if not specified in ImGui::Begin()
     float       IndentSpacing;              // Horizontal indentation when e.g. entering a tree node
     float       ColumnsMinSpacing;          // Minimum horizontal spacing between two columns
     float       ScrollbarWidth;             // Width of the vertical scrollbar
-    float       GrabMinSize;                // Minimum width/height of a slider or scrollbar grab
-    ImVec2      DisplaySafeAreaPadding;     // Window positions are clamped to be visible within the display area. If you cannot see the edge of your screen (e.g. on a TV) increase the safe area padding.
+    float       ScrollbarRounding;          // Radius of grab corners for scrollbar
+    float       GrabMinSize;                // Minimum width/height of a grab box for slider/scrollbar
+    ImVec2      DisplayWindowPadding;       // Window positions are clamped to be visible within the display area by at least this amount. Only covers regular windows.
+    ImVec2      DisplaySafeAreaPadding;     // If you cannot see the edge of your screen (e.g. on a TV) increase the safe area padding. Covers popups/tooltips as well regular windows.
     ImVec4      Colors[ImGuiCol_COUNT];
 
     IMGUI_API ImGuiStyle();
@@ -1016,6 +1025,7 @@ struct ImFont
         signed short    XOffset, YOffset;
         float           U0, V0, U1, V1;     // Texture coordinates
     };
+    float               BaseLine;           // Distance from top to bottom of e.g. 'A' [0..FontSize]
     ImFontAtlas*        ContainerAtlas;     // What we has been loaded into
     ImVector<Glyph>     Glyphs;
     const Glyph*        FallbackGlyph;      // == FindGlyph(FontFallbackChar)